JPH11127621A - Thin film peeling device for transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin film peeling device designed to smoothly deliver soil-bearing seedlings to a transplanting mechanism through making the position for withdrawing seedlings from continuous pots constant. SOLUTION: This thin film peeling device, installed on a machine body 14, is made up of a pot seedling platform 15 for bearing a raising-seedling-finished continuous pot assembly 1, a pair of guide members 34 for guiding two thin films 4A, 4B on continuous pots 7, which are withdrawn from the platform 15, so as to be peeled off each other, a pair of rotating rollers 35A, 35B for nipping the thin films 4A, 4B bypassed through the guide members 34 and withdrawing the films on the platform 15 side, and reels 36A, 36B for winding these films withdrawn by the aid of the above rollers 35A, 35B. This peeling device works as follows: the two thin films 4A, 4B are peeled off by the rotation of the rollers 35A, 35B to withdraw soil-bearing seedlings 3, which, in turn, are sent onto the rear side of the machine body through a conveyor unit 16 and then released into planting furrows.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method in which two strip-shaped thin films are joined at a predetermined pitch, and a continuous pot having a pot between the joined portions is laminated with a water-soluble adhesive. The present invention relates to a thin film peeling device for a transplanter for continuously taking out seedlings raised using a continuous collecting pot from the inside of the pot.

[0002]

2. Description of the Related Art As a continuous collecting pot of this kind, for example,
JP-B-58-11817, JP-B4-79612
There are those described in Japanese Patent Publication No. When this is not used, many pots appear in a honeycomb shape by expanding in use as a knitting state when not in use, and by maintaining this expanded state, putting it in a nursery box and seeding it with soil, a large number of The seedlings can be intensively raised. And according to the seedling raising by this continuous collecting pot, in addition to the root growth not occurring between the seedlings because they grow independently in the pot body, the water-soluble adhesive degenerates by irrigation at the time of seedling raising, so the seedlings were raised for a predetermined number of days. Thereafter, when one end of the continuous pot is pulled, the stacked continuous pots can be easily separated and pulled out in a line.
By using a simple type transplanter as described in Japanese Patent Publication No. 2 (1993) -213, transplantation can be efficiently performed while maintaining the continuous state.

[0003] When seedlings are planted together with pots, the pots are a factor inhibiting rooting of the seedlings. Depending on the type of crop, seedlings must be taken out from the pots and planted. In such a case, for example, Jikken 49-13460
Japanese Patent Application Laid-Open No. 60-184313 and Japanese Patent Application Laid-Open No. Sho 60-184313 are useful. Among them, the former device (Japanese Utility Model Publication No. 49-13460) draws continuous pots in a row through a pair of guide frame plates from a pot seedling mounting portion on which continuous collecting pots containing seedlings are placed. The two thin films are peeled off by a pair of left and right rotating bodies urged in the opening direction by a spring, and the two thin films thus peeled off are united again and sandwiched by a pair of take-out rotating bodies. It is configured to draw out. In addition, the latter (JP-A-60-18431)
No. 3), a continuous pot drawn from a seedling box set portion on which a seedling box containing a continuous collecting pot is placed is sandwiched between a pair of endless rotating bodies and continuously sent to the pair of endless rotating bodies. The two thin films of the continuous bowl fed to the outlet of are pulled in the peeling direction by the left and right take-up reels.

However, according to the thin film peeling apparatuses described in the above publications, in the former case, the two thin films which have been peeled once are united again, sandwiched between a pair of take-out rotating bodies, and drawn. Therefore, a difference occurs in the drawing speed of each thin film due to mutual slippage of the two thin films, and in the latter case, the two thin films of the continuous bowl are pulled in the peeling direction by the left and right take-up reels, The difference in the winding state of the thin film wound on the left and right take-up reels causes a difference in the drawing speed of each thin film, and in any case, the picking position of the seedling from each pot is shifted left or right as it is. This makes it difficult to stably deliver the seedlings to the transplant mechanism.

[0005]

[Problems to be Solved by the Invention]
In the device described in Japanese Patent No. 13460 (the former), a pair of free-rotating impellers is disposed in front of a pair of guide frame plates, and a pot is bitten out between the free-rotating impellers to be fed out. In the case of Japanese Patent Application Laid-Open No. 60-184313 (the latter), teeth are provided on the peripheral surfaces of a pair of endless rotating bodies, and a pot is interposed between the teeth and fed out. Like that. However, the continuous pots drawn out from the pot seedling placement section or the seedling box set section, because the soil inside each pot body has flexibility, the shape of each pot body is lost during the drawing of the continuous pots. The pot pitch changes, and the change is accumulated according to the amount of continuous pot withdrawal, and finally each pot is between the free rotating impellers or between the teeth on the peripheral surface of the endless rotary body. Cannot be bitten one by one, and it is extremely difficult to smoothly remove the thin film.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to remove a seedling from each pot without using a special mechanism for biting the pot. It is an object of the present invention to provide a thin film peeling device for an implanting machine which can make the film thickness constant and thus can smoothly peel the thin film.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a method in which two strip-shaped thin films are joined at a predetermined pitch, and a continuous pot having a pot between the joined portions is water-soluble. A seedling grown using a continuous collecting pot superposed via an agent, a thin film peeling device for a transplanting machine for continuously taking out the seedling from the pot body, wherein the seedling was placed on the body of the transplanting machine. A pot seedling mounting portion for mounting the continuous collecting pot, a pair of guide members for guiding the two thin films of the continuous pot pulled out from the pot seedling mounting portion in a peeling direction, and each of the guide members A rotary pull-out means for pinching and pulling out each of the thin films detouring around, and a winding reel for winding each thin film drawn out by the rotary pull-out means.

[0008] In the thin film peeling apparatus having the above-described structure, the rotary pulling means pinches and pulls out each thin film bypassing the guide member. Therefore, by appropriately setting the pinching force, no slip occurs. The thin films can be pulled out at a constant speed, so that there is no shift in the position where the seedlings are removed from the pot.

In the present invention, it is preferable that the rotary pull-out means is arranged at a position where each thin film bypassing the guide member is pulled out toward the pot-seedling-mounting portion side. By arranging the rotary pull-out means in this way, the area in front of the seedlings taken out from the pot is greatly opened, and it becomes possible to install various types of transplanting mechanisms on the body.

[0010] Further, the rotary pull-out means can be composed of a pair of rotary rollers and a pair of endless belts. In the case of a pair of rotating rollers, the structure is simple, and in the case of a pair of endless belts, the frictional contact surface with the thin film is enlarged and slippage can be reliably suppressed.

According to the present invention, one of the rotating rollers of the pair of rotating rollers is replaced by a take-up reel, and the take-up reel is
It is also possible to adopt a configuration in which an energizing means is provided so as to be able to approach and separate from the pair of rotating rollers and to normally urge the take-up reel toward the pair of rotating rollers. In such a configuration, the take-up reel rotates following the rotating roller, so that an independent drive mechanism for rotating the take-up reel is not required, and the winding speed of the take-up reel is adjusted. No special measures are required.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 to 4 show the overall structure of a transplanter 11 equipped with a thin film peeling apparatus 10 according to a first embodiment of the present invention. The transplanter 11 includes a body 14 provided with a ground slide 12 and an opener 13 on the rear side in the traveling direction F. The thin film peeling device 10 is located at an intermediate position in the traveling direction F on the body 14. Is arranged. Also on the body 14 is a front side of the traveling direction F (hereinafter, this traveling direction F
(A front side of the body is referred to as a front side of the body, and a side in the opposite direction is referred to as a rear side of the body), and a pot seedling mounting section 15 for mounting a continuous collecting pot 1 described later is provided at the rear side of the body. A conveyor unit 16 for transporting the seedlings 3 with soil removed from the pot body 2 constituting the continuous collecting pot 1 by the thin film peeling device 10 and planting the seedlings 3 on the field surface G is arranged.

As shown in FIG. 5, the continuous collecting pot 1 is composed of two strip-shaped thin films 4A and 4B at a predetermined pitch.
And a continuous pot 7 between the joint portions (connecting pieces) 6 serving as the pot body 2 is overlapped via a water-soluble adhesive. For details, for example, Japanese Patent Publication No. 58-11817, Japanese Patent Publication No. 4-7961
Since it is described in Japanese Unexamined Patent Application Publication No. 2 (Kokai) No. 2 or the like, further description is omitted here. The continuous collecting pot 1 is stored in a knitting state, and when expanded from this state, a large number of pots 2 appear in a honeycomb shape, and when the seedlings are raised, they are kept in the expanded state and placed in a seedling raising box (not shown). . Then, the continuous collecting pot 1 placed in the seedling raising box is automatically subjected to soil filling and seeding by a dedicated soil filling sowing machine, and for example, the seedling management is intensively performed in a greenhouse. The seedlings 8 in each pot 2 grow independently in the pots 2 as described above, so that rooting does not occur mutually, and the water-soluble adhesive is degraded by watering during seedling raising. . Therefore, after raising the seedlings,
Is placed on the pot seedling mounting portion 15 of the machine body 14, and one end of the continuous pot 7 is pulled, whereby the superposed continuous pots 7 are easily separated and can be pulled out in a row as shown in FIG. . In addition, the continuous collecting pot 1 may be transferred from the seedling box to the pot seedling mounting part 15, or the whole seedling box may be placed in the pot seedling mounting part 15. Covers the seedling box with a connecting plate (not shown) for connecting the inside and outside of the seedling box to facilitate movement of the continuous pot 7.

Returning to the original description, the structure of the transplanter will be further described.
(FIGS. 3 and 4) A pair of left and right first and second support frames 21 and 22 having one end fixed and the other end extended toward the front of the fuselage, and a first support. One end is connected to the frame 21 using the shaft 23 (FIG. 4), and the second
A U-shaped handle frame 25 having an intermediate portion joined to the support frame 22 of the second frame using a shaft 24 (FIG. 3);
And a support plate fixed to the upper surface of the support plate. Second
The support frame 22 of the second support frame 22 is disposed inside the first support frame 21 so as to incline upward from the ground slide body 12 toward the front side of the fuselage. Therefore, the support plate 26 on the second support frame 22 It is in a state of inclining downward toward the rear part of the fuselage. Note that the thin film peeling device 10 and the potted seedling mounting portion 15 are installed on the support plate 26.

The space between the pair of first support frames 21 is
An axle 28 is bridged using bearings 27 (FIG. 4),
Rolling wheels 29 are attached to both ends of the axle 28 which is pulled out on both sides of the support frame 21. The rolling wheel 29 is slightly in contact with the field surface G when the sliding body 12 is brought into full contact with the field surface G.
Therefore, when the ground sliding body 12 is brought into contact with the field surface G and the airframe 14 is slid, the rolling wheels 29 roll on the field surface G.

The ground slide 12 has a boat-like shape as shown in FIG.
Is directed toward the front of the fuselage. A slit 30 formed by cutting a predetermined depth from the rear end toward the inclined wall 12a is provided at an intermediate portion in the width direction of the ground slide body 12. The slit 30 is used as an outlet for feeding the soild seedling 3 conveyed by the conveyor unit 16 to the field surface G, and is formed to have a minimum width necessary for allowing the soiled seedling 3 to pass without difficulty. Have been. Also, the opener 13 is
The ground sliding body 12 is formed in a box shape having a front end closed at an acute angle and an open rear end, and the sharp end 13a of the front end is directed toward the front of the fuselage and the internal space thereof is aligned with the slit 30.
Is fixed to the lower surface. Therefore, the slit 30
Passes through the opener 13 as it is and lands on the bottom of the planting groove S (FIG. 2) formed by the opener 13. In addition, a pair of mulling plates 31 are attached to the ground sliding body 12, and the pair of mulling plates 31 extend rearward of the body 14 at an interval with the slit 30 interposed therebetween.

The thin film peeling apparatus 10 includes a pair of left and right pot seedling guide plates 32 for guiding the continuous pots 7 drawn from the continuous collecting pots 1 on the pot / plant placement section 15 in a line. The pair of potted seedling guide plates 32 are disposed on the support plate 26 of the fuselage 14 in a C-shape so as to have a sufficiently large spread at the front part of the fuselage and to form a narrow passage opening 33 at the rear part of the fuselage. And seedling placement section
The continuous pots 7 drawn from 15 are pulled out in a row through a narrow passage opening 33 between the pair of potted seedling guide plates 32.

The thin film peeling device 10 also includes a pair of potted seedling guide plates.
A pair of guide members 34 arranged opposite to the passage opening 33 between the openings 32 at a wider interval than the passage opening 33, and a pair of rotating rollers (rotary extraction means) 35A arranged outside the potted seedling guide plate 32, 35B
And two take-up reels 36A, 36B arranged on the front side of the fuselage with respect to each pair of rotating rollers 35A, 35B. The pair of rotating rollers 35A and 35B and the take-up reels 36A and 36B
The two thin films 4A and 4B peeled to the left and right from the continuous bowl 7 are rotated and driven synchronously by a drive mechanism 40 (FIG. 8) described later.
By the rotation of 35B, it is drawn out to the front side of the fuselage by bypassing the guide member 34, and is further taken up by the corresponding take-up reels 36A, 36B. The rollers constituting each pair of rotating rollers 35A and 35B are desirably provided with irregularities such as serrations on the surface thereof in order to increase the frictional resistance with the thin films 4A and 4B.

When the rotation speed of each of the winding reels 36A and 36B is constant, the peripheral speed changes according to the winding number (winding diameter) of the thin films 4A and 4B, and the winding speed and the rotation roller pair 35A, When the take-up reels 36A, 36B are forcibly rotated as they are, a difference occurs between the drawing speed of the thin films 4A, 4B by the thin film peeling device 35B, and the peeling speed of the thin films 4A, 4B by the thin film peeling device 10 becomes larger than planned. Problems such as cutting of the thin films 4A and 4B occur. Therefore, in the first embodiment, FIG.
As shown in the figure, the reel body 37 of each take-up reel 36A, 36B
And the coil spring between the two
It is connected by 39. By configuring the winding reels 36A and 36B in this manner, the coil spring 39 is deformed in the winding direction in accordance with the increase in the winding diameter, and the reel body 37 is rotated.
Is rotated with respect to the rotating shaft 38, and the winding speed is adjusted so as to match the drawing speed of the thin films 4A and 4B by the pair of rotating rollers 35A and 35B. The rotating shaft 38 is supported by a gear box 41 for a thin film peeling device described later via a pair of bearings 41a.

The gear box 41 for the thin film peeling device is fixedly provided on the second support frame 22 of the body 14 as shown in FIG. 3, and the support plate 26 is commonly used as the upper plate of the gear box 41. Have been. On the lower surface of the gear box 41, a small gear box 42 is provided.
As shown in FIGS. 4 and 8, a horizontal shaft 43 extending horizontally in the width direction of the body 14 is rotatably supported on the 42. The horizontal shaft 43 is provided with a sprocket 44 at one end thereof protruding out of the small gear box 42. The sprocket 44 has a chain hung on a sprocket 45 attached to the axle 28 for the rolling wheel 29. 46 has been multiplied.
On the other hand, a bevel gear 47 is attached to the other end of the horizontal shaft 43 introduced into the small gear box 42, and this bevel gear 47 has a lower end of a rotating shaft 38 (FIG. 7) of one take-up reel 36b. The bevel gear 48 (FIG. 8) attached to the section is engaged. That is, the rotation of the rolling wheel 29 is transmitted to the horizontal shaft 43 via both sprockets 45 and 44 and the chain 46, and further transmitted to the rotating shaft 38 via both bevel gears 47 and 48.

As shown in FIG. 8, a sprocket 49 attached to the rotating shaft 38 of each of the take-up reels 36A, 36B and a rotating shaft 50 of each of the pair of rotating rollers 35A, 35B are provided in the gear box 41, as shown in FIG.
Sprocket 51 and gear 52 mounted on the sprocket
A power transmission mechanism 54 including a chain 53 connecting 49 and 51 is provided. The power transmission mechanism 54, the horizontal shaft 43, the chain 46, the rolling wheels 29, and the like constitute the driving mechanism 40, and the rolling wheels 29 serve as a driving source for each pair of rotating rollers 35A, 35B and each winding reel 36A, 36B. Used. Rolling wheel 29
As described above, the ground slide body 12 is brought into contact with the field surface G, and the aircraft 14 is slid in the traveling direction F, thereby making the field surface G
The roller rolls upward, and accordingly, each rotating roller pair 35A, 35B and each take-up reel 36A, 36B rotate according to the sliding of the body 14. The driving mechanism 40 controls the two thin films 4 by the thin film peeling device 10 with respect to the sliding speed of the body 14.
The gear ratio or the pulley ratio is set so that the peeling speed of A and 4B is sufficiently reduced.

On the other hand, the conveyor unit 16 is provided with a root block 3a of the soild seedling 3 fed from the thin film peeling device 10.
Conveyor 55 for pinching and transporting the seedlings 3
and a transplant conveyor 56 for nipping and transporting b and feeding it out to the field surface G. The transfer conveyor 55 is positioned so that its starting end approaches the guide member 34 of the thin film peeling apparatus 10, while the transplanting conveyor 56 is arranged such that its start end is wrapped over the end of the transfer conveyor 55. ing. In the first embodiment, the transfer and transplant conveyors 55 and 56 each comprise a pair of belt conveyors, and are arranged in a conveyor gear box 59 disposed above the ground slide 12 of the body 14. The rotation is driven by a mechanism 60 (FIG. 8).

More specifically, the conveyor gear box 59
Are fixed to the upper ends of brackets 61, 62 (FIG. 3) extending upward from the ground slide 12 and the second support frame 22, and the whole thereof is supported by the support plate 26 on the second support frame 22.
It is inclined downward toward the rear of the aircraft.
In the gear box 59, two pairs of rotating shafts 63 and 64 extending in a direction perpendicular to the upper and lower plates are rotatably supported via bearings (not shown). The two pairs of rotating shafts 63 and 64
It is arranged adjacent to the fuselage 14 in the front-rear direction, and its lower end is greatly protruded below the gear box 59. A driving pulley 65 for the transport conveyor 55 is mounted on the lower end of one pair of rotating shafts 63 arranged on the rear side of the fuselage, and is mounted on the lower end of the other pair of rotating shafts 64 arranged on the front side of the fuselage. Driving pulleys 66 for the conveyor 56 are respectively mounted (FIGS. 2, 3).

The support plate 26 on the second support frame 22 includes
A pair of support shafts supporting a driven pulley 67 for the conveyor 55 adjacent to the pair of guide members 34 in the thin film peeling device 10
A pair of support shafts 68 supports a driven pulley 70 for the transplant conveyor 56 using a bracket 69 at the rear end of the gear box 59.
71 are attached (FIGS. 2, 3). Each of the transport and transplant conveyors 55 and 56 has a pair of drive pulleys 6.
5 and 66 and a pair of endless belts 72 and 73 wrapped around driven pulleys 67 and 70. The interval between the pair of endless belts 72 on the conveyor 55 is the root block 3a of the seedling 3 with soil. The interval between the pair of endless belts 73 on the conveyor 56 is 3
Are set so that the leaf portions 8b can be pinched and conveyed. Each of the endless belts 72 and 73 has a structure in which a material having flexibility, for example, a plastic foam, is arranged at least on the surface layer so as not to damage the root block 3a or the leaf 3b of the soild seedling 3. It is desirable.

As shown in FIGS. 3 and 4, a small gear box 74 is provided on the upper surface of the conveyor gear box 59. The small gear box 74 extends horizontally in the width direction of the machine body 14. A horizontal shaft 75 is rotatably supported.
The horizontal shaft 75 has a sprocket 76 at one end protruding out of the small gear box 74.
A chain 78 is hung around a sprocket 77 attached to the axle 28 for the rolling wheel 29. On the other hand, a bevel gear 79 is attached to the other end of the horizontal shaft 75 introduced into the small gear box 74 as shown in FIG. 8, and this bevel gear 79 extends upward from inside the gear box 59. Bevel gear attached to the upper end of the intermediate shaft 80
81 are engaged. That is, the rotation of the rolling wheel 29 is controlled by the horizontal shaft via the sprockets 77 and 76 and the chain 78.
75, and further transmitted to the intermediate shaft 80 via both bevel gears 79, 81.

As shown in FIGS. 4 and 8, an intermediate gear mounted on the intermediate shaft 80 is provided in the gear box 59.
82, a pair of gears 83 attached to a pair of rotating shafts 63 for the conveyor 55, a pair of gears 84 attached to a pair of rotating shafts 64 for the transplanting conveyor 56, and rotation of the intermediate gear 82 for the transplanting conveyor 56. A power transmission mechanism 86 including a transmission gear 85 and the like for transmitting the rotation to the rotating shaft 64 is provided. This power transmission mechanism 86, intermediate shaft
80, horizontal shaft 75, chain 78, rolling wheel 29, etc.
60, the rolling wheels 29 of which convey and transfer conveyor 5
It is used as a drive source for 5, 56. The gear ratio of the power transmission mechanism 86 is set so that the transport conveyor 55 and the transplant conveyor 56 rotate at the same speed. Further, the drive mechanism 60 is connected to the transfer and transplant conveyor 55.
And 56 set their gear ratio or pulley ratio so as to transport the soild seedling 3 at the same speed as the sliding speed of the airframe 14.

Hereinafter, the transplanting operation by the transplanter 11 configured as described above will be described. At the time of transplantation, the continuous pot 7 is pulled out from the continuous collecting pot 1 previously placed on the pot seedling mounting portion 15, and the two thin films 4A and 4B on the end side are manually peeled off to an appropriate length. , Each of the thin films 4A and 4B is separated by a thin film peeling device 10
Of the corresponding take-up reels 36A, 35B through the pair of rotating rollers 35A, 35B.
One end of each is fixed to the reel body 37 of FIG. 36B (FIG. 7). At this time, the continuous pot 7 is a pair of pot seedling guide plates 32 on the body 14.
Through the passage opening 33 of the vehicle and pulled out toward the front of the aircraft.

After completion of the above preparation, the handle frame 25 of the body 14
The aircraft 14 is advanced in the traveling direction F while holding the ground slide 12 in full contact with the field surface G. Then, the aircraft 14
The rolling wheel 29 mounted on the roller rolls on the field surface G, and its rotation is simultaneously transmitted to the thin film peeling device 10 and the conveyor unit 16 via the respective drive mechanisms 40 and 60 (FIG. 8). That is, the pair of rotating rollers 35A and 35B of the thin film peeling device 10 are connected to the thin film 4A,
4B, and a tensile force is applied thereto, whereby a force in the peeling direction is applied to the continuous bowl 7, and the two thin films 4A, 4B
5 (FIG. 5) are continuously peeled to the left and right. By peeling off these two thin films 4A and 4B, the seedlings 8 in each pot 2 are sequentially exposed with soil, and are fed out one by one toward the conveyor unit 16 as soiled seedlings 3, while being peeled off. Each of the obtained thin films 4A and 4B is associated with a corresponding take-up reel 36A, 36A.
B is gradually wound. At this time, since each of the thin films 4A and 4B is firmly held and pulled out by the pair of rotating rollers 35A and 35B, no slip occurs between the pair of rotating rollers 35A and 35B and each of the thin films 4A and 4B. The pulling speed of each of the thin films 4A and 4B is constant, and the feeding position (the extracting position) of the soiled seedling 3 is also constant. In addition, each take-up reel 36
As described above, the peripheral speeds of the thin films 4A and 4B are automatically adjusted by rotating the reel body 37 with respect to the rotating shaft 38 in accordance with the increase in the winding diameter as described above. It will be constant.

On the other hand, the conveyor unit 16 to which the rotation of the rolling wheel 29 is transmitted by the driving mechanism 60 receives the rotation by the two pairs of rotating shafts 63 and 64 and rotates the two pairs of driving pulleys 65 and 66. . This enables the transfer and transfer conveyors 55 and 56
Rotate at the same peripheral speed in the same direction. The seedlings 3 with soil fed out from the thin film peeling device 10 have the starting end (entrance portion) of the transport conveyor 55 located close to the guide member 34 and have a recoil at the time of peeling.
55 between a pair of endless belts 72 of the conveyor 55
Transports the rooted block 3a of the soiled seedling 3 to the rear side of the fuselage. The transport speed of the transport conveyor 55 is set sufficiently higher than the peeling speed of the two thin films 4A and 4B by the thin film peeling device 10 as described above. 7 are conveyed at an interval (pitch) larger than the mutual interval of the pots 2.

The leaf 3b of the soiled seedling 3 conveyed to the rear side of the machine body by the conveyor 55 is sandwiched between a pair of endless belts 73 of the transplant conveyor 56 near the end of the conveyor 55. Then, the root block 3a of the soiled seedling 3 is released from the pair of endless belts 72 of the transport conveyor 55, and at the same time, the entire seedling 3 is transferred to the transplant conveyor 56 and further transported to the rear part of the machine body. At this time, since the end of the transport conveyor 55 and the start end of the transplant conveyor 56 are wrapped with each other, while the root block 3a of the seedling 3 with soil is being clamped by the transport conveyor 55, the transplant conveyor 56 The leaf portion 3b of the attached seedling 3 is sandwiched, so that the soiled seedling 3 is reliably transferred from the transport conveyor 55 to the transplant conveyor 56.

Since the leaves 3b of the soiled seedling 3 conveyed to the rear of the machine by the transplanting conveyor 56 are sandwiched between the seedlings 3, as shown in FIG. 2, the lower part of the leaves 3b is under its own weight. It hangs down vertically. Since the transplanting conveyor 56 is inclined downward toward the rear of the fuselage, the vertically hung portion of the soiled seedling 3 is partially removed from the slit 30 of the ground slide 12 (FIG. 6). Through the planting groove S formed by the opener 13. The soild seedling 3 lands at the bottom of the planting groove S when it is transported to near the end of the transplanting conveyor 56, is released from the transplanting conveyor 56 as it is, and stands at the bottom of the planting groove S. Thereafter, the fuselage 14 is also released from the opener 13 in accordance with the progress of the fuselage 14, and the root block 3a is completely embedded in the soil brought by the earthing plate 31. Since the seedlings 3 with soil are transported at intervals (pitch) greater than the mutual spacing of the pots 2 in the continuous pot 7 as described above, the pitch between the seeds 3 with soil planted on the field surface G is sufficient. Size.

Thus, the gliding speed _VA of the body 14 and the transport,
Since the conveying speed V _B of the soil with seedlings 3 transplant conveyor 55 and 56 are at the same speed (V _A = V _B), as shown in FIG. 9, the soil with seedlings 3 being transported in transplantation conveyor 56 Is the field surface G
At a certain position L. Therefore, as the airframe 14 continues to slide at the speed _{VA as} it is, the soild seedling 3 descends above the rest position L and is placed vertically on the bottom of the planting groove S as shown in FIG. And is released from the transplant conveyor 56 as it is. That is, no lateral force is applied to the soiled seedling 3 from the machine body 14 or the transplanting conveyor 56 when the soiled seedling 3 lands, thereby preventing the soiled seedling 3 from falling down. The soil around the planting groove S formed by the opener 13 collapses with the passage of the opener 13 as shown in FIG.
Will come together at a point P slightly separated from the rear end of (), but since the seedling 3 with soil lands just before this junction P (), it will not be possible to ride on the soil that has joined and fall down. No, in this return soil, the root block 3a of the seedling 3 with soil
Is smoothly embedded ().

The take-up reels 36A, 36B in the thin film peeling device 10 are installed at arbitrary positions on the machine body 14 so as not to interfere with the continuous collecting pot 1 and the conveyor unit 16 on the pot seedling mounting portion 15. can do. FIG. 10 shows an example in which the pots 15 are placed outside the vicinity of the entrance of the transport conveyor 55 constituting the conveyor unit 16, and in this case, the pot-plant placement section 15 can be used more widely.

FIG. 11 shows a thin film peeling apparatus 100 according to a second embodiment of the present invention. The feature of the second embodiment is that a pair of rotating belts (rotary pull-out means) 90A and 90B are used instead of the pair of rotating rollers 35A and 35B in the first embodiment. Each rotating belt pair 90A, 90B is composed of a driving pulley 91 and a driven pulley 92.
An endless belt 93 is wound between the endless belts 93. By rotating the driving pulley 91 by the driving mechanism 40, the thin films 4A, 4A,
4B can be pulled out. According to the second embodiment, the frictional contact area between the endless belt 93 and each of the thin films 4A and 4B is increased, so that the occurrence of slippage between the two is reliably prevented. , 4B are constant, and the feeding position (removing position) of the soiled seedling 3 is also constant.

FIGS. 12 and 13 show a thin film peeling apparatus 110 according to a third embodiment of the present invention. The feature of the third embodiment is that one of the rotating rollers of the pair of rotating rollers (35A, 35B) in the thin film peeling apparatus 10 according to the first embodiment is used as a take-up reel (36A, 36B). And the functions of both are integrated into one rotary drawing unit (rotary drawing means) 101A, 101B. That is, each of the rotary drawer units 101A, 101
B is a rotating shaft 50 that is rotationally driven by the driving mechanism 40.
One rotary roller 102 fitted and fixed to (FIG. 8) and one take-up reel 103 for winding the thin films 4A and 4B in cooperation with the rotary roller 102 are provided.

The take-up reel 103 is mounted on the support plate 26 of the body 14.
Revolving plate 105 that revolves around axis 104 that is erected above
The support arm 106 is rotatably supported at the distal end of the support arm 106 via a bearing 107 and a rotating shaft 108. on the other hand,
At the free end of the swivel plate 105, the conveyor 55
The other end of a compression spring 109 having one end fixed to a support shaft 68 (FIG. 3) supporting the driven pulley 67 is fixed. The free end of the revolving plate 105 is normally urged toward the center line of the machine body 14 by the compression spring 109, so that each take-up reel 103 is pressed against the peripheral surface of the rotating roller 102. . The rotating roller 102 and the take-up reel 103
As shown in FIG. 13, each core 102
a, 103a, plastic ring with some elasticity
It is composed of a composite member in which 102b and 103b are fitted.
In addition, irregularities (not shown) such as serrations are provided on the surfaces of the plastic rings 102b and 103b to increase frictional resistance with the thin films 4A and 4B.

In the thin film peeling device 110 provided with the rotary pull-out units 101A and 101B, the two thin films 4A and 4B peeled from the continuous bowl 7 are drawn out to the rear side of the machine body by bypassing the guide members 34, respectively. The pull-out end is connected to the rotary roller 102 of each of the rotary pull-out units 101A and 101B and the take-up reel.
103 and is fixed to the take-up reel 103. In this state, when the body 14 is advanced in the traveling direction F while the ground slide 12 is in contact with the field surface G, the rolling wheels 29 attached to the body 14 roll on the field surface G, Is each drive mechanism 4
It is simultaneously transmitted to the thin film peeling device 110 and the conveyor unit 16 through the channels 0 and 60 (FIG. 8), and the power transmission causes the rotating rollers 102 of the rotary drawing units 101A and 101B to rotate. At this time, the take-up reel
103 presses the thin films 4A and 4B against the peripheral surface of the rotating roller 102, so that the winding reel follows the rotating roller 102.
103 rotates, and a tensile force acts on each of the thin films 4A and 4B.
As a result, a force in the peeling direction is applied to the continuous pot 7, and the two thin films 4A and 4B are gradually peeled to the left and right, and the soild seedlings 3 exposed from each pot 2 are subjected to the first embodiment. In the same manner as in the embodiment, the sheet is conveyed and pinched and conveyed by the transplant conveyors 55 and 56, and is directly planted in the planting groove S.

On the other hand, each thin film 4 peeled off from the continuous bowl 7
A and 4B are wound on the corresponding take-up reel 103,
Since the peripheral speed is synchronized with the drawing speed of the thin films 4A and 4B, no excessive force is applied to the thin films 4A and 4B. That is, according to the third embodiment, the take-up reel 103
Furthermore, there is no need to provide a means (such as a spring 39) for automatically adjusting the peripheral speed as in the first embodiment, and a special power transmission mechanism 54 for rotating the take-up reel 103 becomes unnecessary. The structure of the thin film peeling device 110 is simpler than the thin film peeling devices 10 and 100 of the first and second embodiments.

In the above embodiments, the rolling wheels 29 mounted on the body 14 are used as the power source of the thin film peeling devices 10, 100, 110 and the conveyor unit 16, but the present invention is mounted on the body 14 as the power source. In addition to the use of the motor, the engine of the tractor can be used when the body 14 is towed by the tractor. In addition, the drive mechanism 40 of these thin film peeling devices 10, 100, 110 includes:
Rolling wheel 29, rotating roller pair 35A, 35B and take-up reel 36
It is desirable to provide a clutch for interrupting the transmission of power between A and 36B. When the transplanting machine 11 is to be rotated, the clutch is disconnected and the rotation roller pair 35A, 35B and the take-up reels 36A, 36B are disconnected. Stop rotation.

In the above-described embodiments, the conveyor unit 16 is used as a transplanting mechanism for transplanting the soild seedlings 3 taken out of the pots 2 by the thin film peeling devices 10, 100, 110 onto the field surface G. Does not limit this transplantation mechanism.
A transplanting rod that receives the seedlings 3 with soil through a transplanting rod or a dropping chute to be transferred to and planted on the field surface G by moving up and down and opening and closing can be used.

Further, the material type of the two thin films 4A and 4B constituting the continuous collecting pot 1 to be peeled according to the present invention is arbitrary, and for example, paper, cloth, or a plastic sheet can be used. In addition, the joining mode of the two thin films 4A and 4B for forming the continuous pot 7 is also arbitrary. When paper or cloth is used instead of the above-described joining with the water-resistant adhesive 5, sewing is performed. When a plastic sheet is used, welding can be employed.

[0043]

As described above in detail, according to the thin film exfoliating apparatus for a transplanter according to the present invention, each thin film can be pinched and drawn at a constant speed by the rotary pulling means. The removal position of seedlings from each pot is constant,
The transfer of the seedlings to the transplanter can be performed smoothly, and the reliability of the present device is significantly improved. When the thin film is pulled out toward the pot seedling placement part by specifying the installation position of the rotary pulling means, the area in front of the seedlings taken out from the pot is greatly opened, and the Can be provided with various types of implantation mechanisms, and the utility value is further improved. Further, when one of the rotary rollers of the pair of rotary rollers as the thin film rotary pull-out means is replaced with a take-up reel, the take-up reel rotates following the rotary roller. Not only is a mechanism unnecessary, but a special means for adjusting the winding speed of the take-up reel is not required, and the structure becomes simple as a whole.

[Brief description of the drawings]

FIG. 1 is a plan view showing a main mechanical part taken out from a transplanter equipped with a thin film peeling device as a first embodiment of the present invention.

FIG. 2 is a side view showing a main mechanism portion taken out from a transplanter equipped with the thin film peeling device according to the first embodiment.

FIG. 3 is a side view showing the overall structure of the transplanter equipped with the thin film peeling device as the first embodiment.

FIG. 4 is a plan view showing the entire structure of the transplanter equipped with the thin film peeling device according to the first embodiment.

FIG. 5 is a plan view showing the structure of a continuous pot containing seedlings to be transplanted according to the present invention.

FIG. 6 is a perspective view showing an assembly structure of a ground slide and an opener provided in the transplanter.

FIG. 7 is a cross-sectional view illustrating a structure of a take-up reel in the thin-film peeling apparatus according to the first embodiment.

FIG. 8 is a mechanism diagram showing a drive mechanism in the transplanter equipped with the thin film peeling device as the first embodiment.

FIG. 9 is an explanatory diagram for sequentially explaining a transplanting state by a transplanting machine equipped with a thin film peeling device as the first embodiment.

FIG. 10 is a plan view showing a modified example of the thin film peeling apparatus as the first embodiment.

FIG. 11 is a plan view showing a characteristic portion of a thin film peeling apparatus as a second embodiment of the present invention.

FIG. 12 is a plan view showing a characteristic portion of a thin film peeling device as a third embodiment of the present invention.

FIG. 13 is a cross-sectional view showing a structure of a drawer unit constituting the thin film peeling device shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Continuous collecting pot, 2 Pot body 3 Soiled seedling, 3a Root block part, 3b leaf part 4A, 4B thin film 6 Joining part, 7 continuous pots, 8 seedling 10,100,110 Thin film peeling device 11 Transplanter, 14 machine, 15 Potted seedling Placement unit 16 Conveyor unit, 29 Rolling wheel 35A, 35B Rotary roller pair 36A, 36B Take-up reel 40 Thin film peeling device drive mechanism 54 Thin film peeling device power transmission mechanism 90A, 90B Rotating belt pair 101A, 101B Thin film peeling device Rotary drawer unit 102 Rotary roller of rotary drawer unit 103 Take-up reel of rotary drawer unit 105 Rotating plate, 106 Arm, 109 Compression spring (biasing means)

Claims (5)

[Claims] 1. A seedling raising method using a continuous collecting pot in which two strip-shaped thin films are joined at a predetermined pitch, and a continuous pot having a pot body between the joined portions is overlapped with a water-soluble adhesive. A transplanting thin film peeling device for continuously removing the seedlings from the pot body, wherein a pot seedling mounting portion for mounting a continuous collecting pot containing the seedlings on the body of the transplanting machine; A pair of guide members for guiding the two thin films of the continuous pot drawn out from the pot seedling placement part in the direction of peeling each other, and a rotating drawer for holding and pulling each thin film bypassing each of the guide members, And a take-up reel for winding each of the thin films drawn by the rotary drawing means. 2. The thin film peeling machine according to claim 1, wherein the rotary pulling means is arranged at a position where each thin film bypassing the guide member is drawn toward the pot-seedling receiving portion side. apparatus. 3. The thin film peeling device for an implanting machine according to claim 1, wherein the rotating pull-out means comprises a pair of rotating rollers. 4. The thin film peeling device for an implanting machine according to claim 1, wherein the rotating pull-out means comprises a pair of rotating belts. 5. A take-up reel replaces one of the pair of rotary rollers with a take-up reel, and the take-up reel is disposed so as to be able to approach and separate from the pair of rotary rollers, and is always provided with the take-up reel. The thin film peeling device for an implanting machine according to claim 3, further comprising an urging means for urging the take-up reel to the pair of rotating rollers.