JP2021045115A - Seeding device - Google Patents

Abstract

To solve a problem in a conventional device in which a turning detection arm is installed obliquely with the trailing to fall down, and therefore the transfer of a nursery container is stopped when the wall of the nursery container comes in abutment.SOLUTION: A seeding device is provided with at least a seed supply device 7 for supplying seeds from the above into a nursery container A in an upper position of a carriage 1 having transfer means 2 for transferring the nursery container A from the starting-edge side toward the termination side in a horizontal state. A horizontal axis feeding roll 25 of the seed supply device 7 is configured so as to be rotated and driven by a driving motor 81 being different from the transfer means 2. The driving motor 81 is configured to immediately stop the rotation of nursery container detection means 80 provided in the transfer direction upstream side of the nursery container A at predetermined intervals from the seed supply device 7 by a position detection stop signal of a front wall 79 of the nursery container A or the back wall 79. The nursery container detection means 80 is provided at intervals of one length of the nursery container A to be used in the transfer direction upstream side of the seed supply device 7.SELECTED DRAWING: Figure 1

Description

The present invention relates to a seeding apparatus.

Conventionally, a seed supply device for supplying seeds from above is provided in the seedling raising container at an upper position of a transfer table having a transfer means for horizontally transferring the seedling raising container from the start side to the end side, and this seed supply device is provided. Is provided with a seedling raising container detection unit, and when the detection unit detects the front and rear walls of the seedling raising container, the seed supply is stopped (Patent Document 1).

Japanese Patent No. 2876192

In the known example, two configurations are disclosed as means for detecting the seedling raising container, one of which is to rotatably attach the base of the rotation detection arm to the seed supply device and to attach the base of the rotation detection arm to the seed supply device. A limit switch is provided in the seedling raising container, and the seedling raising container is detected by using a mechanical means in which the tip of the rotation detection arm contacts the front wall of the seedling raising container, and the seed supply is stopped.
Therefore, when the limit switch detects the upward movement of the rotation detection arm of the standby height, the seed supply is stopped, but even if the rear wall of the seedling raising container passes through the rotation detection arm, it must return to the standby height. , Seed supply is not restarted, and there is a problem that the detection accuracy is low.
Further, the rotation detection arm is installed so as to be inclined backward, and there is a problem that the transfer of the seedling raising container is stopped when the wall of the seedling raising container comes into contact with the arm.
In addition, the second means for detecting the seedling raising container of a known example is to detect the difference between the distance of the floor soil surface in the seedling raising container and the wall height of the seedling raising container by a distance sensor, thereby detecting the wall of the seedling raising container. Since the configuration detects the presence or absence of the detector, there are problems that the detector is expensive and the detector is not easy to set.
In addition, since both the rotation detection arm and the distance sensor are provided in the seed supply device, it is not easy to install, and adjustment and setting are troublesome, and there is another problem that the detection accuracy is lowered by that amount. is there.
Further, in the known example, since the rotation detection arm and the distance sensor are both provided in the seed supply device, the front and rear of the seedling raising container are not related to the front-back positional relationship between the rotation detection arm and the distance sensor and the seed supply device. There is no idea to accurately grasp the position (length) of the wall, and in this respect as well, the detection accuracy of the position of the front and rear walls of the nursery container is low, sowing is unnecessary on the front and rear walls, and the restart of seed supply is delayed. There are challenges.
The present application has solved the above-mentioned problems by devising the configuration of the seedling raising container detecting means for detecting the presence or absence of the front and rear walls of the seedling raising container.

The invention of claim 1 is to supply seeds from above into the seedling raising container A at least at a position above the transfer table 1 having the transfer means 2 for horizontally transferring the seedling raising container A from the start end side to the end side. The seed supply device 7 is provided, and the horizontal axis feeding roll 25 of the seed supply device 7 is rotationally driven by a drive motor 81 different from the transfer means 2, and the drive motor 81 is set at a predetermined interval from the seed supply device 7. The seedling raising container detecting means 80 is configured to be able to immediately stop rotating by the position detection stop signal of the front wall 79 or the rear wall 79 of the seedling raising container A of the seedling raising container detecting means 80 provided on the upper side in the transfer direction of the seedling raising container A. Is a seeding device provided at intervals of one length of the seedling raising container A to be used on the upper side in the transfer direction of the seed supply device 7.
According to the second aspect of the present invention, the seedling raising container detecting means 80 is a sowing device configured by providing a detection protrusion 89 that moves up and down by a link arm 85 on a support member 82 provided on the transfer table 1.
According to the third aspect of the present invention, the detection protrusion 89 is attached to the vertical moving body 87 that moves up and down by the link arm 85, and the sensing body 94 of the stop switch 93 faces the moving path of the vertical moving body 87 above the vertical moving body 87. It was used as a seeding device.
According to the fourth aspect of the present invention, the stop switch 93 is a seeding device configured so that the height of the stop switch 93 can be adjusted with respect to the transfer table 1.
According to the fifth aspect of the present invention, the stop switch 93 is a seeding device attached to a support member 82 provided on the transfer table 1 so as to be adjustable in height.
In the invention of claim 6, the detection protrusion 89 is attached to a vertically moving body 87 that moves up and down by a link arm 85, and the vertical moving body 87 on the rear side of the detection protrusion 89 is provided with a guide surface 91 that inclines backward. It is a device.
According to the invention of claim 7, the detection protrusion 89 is attached to a vertically moving body 87 that moves up and down by a link arm 85, and the vertical moving body 87 on the front side of the detection protrusion 89 is provided with a retracting surface 91A that inclines forward. It is the one.
The invention of claim 8 is a sowing device provided with a sliding contact body 90 that slides on the upper surface of the side plate of the seedling raising container A on the vertical moving body 87 on the front side of the detection protrusion 89.
In the invention of claim 9, a total stop switch 95 for detecting the seeded seedling raising container A transferred by the transfer means 2 is provided at a predetermined position at the end of the transfer table 1, and the total stop switch 95 is provided as a seeded seedling raising container. When A is detected, the entire seeding apparatus is stopped, and the stop control of the drive motor 81 of the horizontal axis feeding roll 25 by the stop signal of the all stop switch 95 is transferred in advance after receiving the stop signal of the all stop switch 95. The seeding device has a control configuration in which the means 2 is stopped by delaying the inertial movement time after the drive is stopped.
According to the invention of claim 10, the base of the pair of link arms 85 is attached to the support member 82 provided on the transfer table 1 by the shafts 86 arranged side by side in the front-rear direction, and the tips of the link arms 85 are arranged side by side in the front-rear direction. It is a seeding device attached to the vertical moving body 87 by a vertical shaft 88.
In the invention of claim 11, the seed supply device 7 corresponds to the length of the seedling raising container A used for the sowing operation, and the seedling raising container detecting means 80 is at the detection position of the rear wall 79 of the seedling raising container A. The seeding device is configured so that the front wall 79 of the above can be slid back and forth with respect to the transfer table 1 so that the front wall 79 is located below the seed feeding position of the horizontal axis feeding roll 25 so that the front and rear position can be adjusted.
In the invention of claim 12, the seed supply device 7 and the seedling raising container detecting means 80 are seeding devices configured to be slidable back and forth relative to the transfer table 1.

In the invention of claim 1, the drive motor 81 for driving the horizontal axis feeding roll 25 of the seed supply device 7 immediately stops rotating by the stop signal of the seedling raising container detecting means 80, so that the seedling raising container A is continuously transferred. Seeds can be prevented from falling on the front and rear walls 79, and seeding spots in the seedling raising container A can be prevented with high accuracy. As a result, wasteful seed supply can be avoided, energy-saving seeding work can be performed, and seedling raising can be performed. Since the container detecting means 80 is provided at intervals of one length of the seedling raising container A used on the upper side in the transfer direction of the seed supply device 7, it is easy to attach and adjust the seedling raising container detecting means 80. Therefore, the detection accuracy of the seedling raising container A can be improved.
In the invention of claim 2, in the seedling raising container detecting means 80, since the detection protrusion 89 moves up and down substantially vertically by the link arm 85, the control accuracy of stopping and restarting the seed supply can be improved, and the detection protrusion Since the 89 moves up and down smoothly, the presence of the detection protrusion 89 prevents the seedling raising container A from being transported.
In the invention of claim 3, since the sensing body 94 of the stop switch 93 faces the moving path of the vertical moving body 87 provided with the detecting protrusion 89, the seed supply is stopped and restarted by moving the detection protrusion 89 up and down. Can be done.
In the invention of claim 4, since the stop switch 93 is configured so that the height of the stop switch 93 can be adjusted with respect to the transfer table 1, the detection accuracy of the seedling raising container A can be improved.
In the invention of claim 5, since the stop switch 93 is attached to the support member 82 provided on the transfer table 1 so as to be adjustable in height, the height of the stop switch 93 can be easily adjusted.
In the invention of claim 6, since the vertical moving body 87 on the rear side of the detection protrusion 89 is provided with a guide surface 91 that inclines backward, if any of the front and rear walls 79 of the seedling raising container A hits the guide surface 91. , The detection protrusion 89 and the vertical moving body 87 can be smoothly moved up, and the detection accuracy of the seedling raising container A can be improved.
In the invention of claim 7, since the vertical moving body 87 on the front side of the detection protrusion 89 is provided with the retracting surface 91A that is inclined forward, the detection protrusion 89 is the front wall 79 or the rear wall 79 of the seedling raising container A. Upon passing through either of them, the seeds can be immediately lowered to start driving the drive motor 81, and the seed supply can be resumed immediately, so that the detection accuracy of the seedling raising container A can be improved.
In the invention of claim 8, since the vertical moving body 87 on the front side of the detection protrusion 89 is provided with the sliding contact body 90 that slides and moves on the upper surface of the side plate of the seedling raising container A, the sliding contact body 90 is always the detection protrusion. The 89 can be made to stand by at a predetermined standby height, and the detection protrusion 89 can be smoothly moved up and down.
In the invention of claim 9, the stop control of the drive motor 81 of the horizontal axis feeding roll 25 is stopped by delaying the stop control of the drive motor 81 of the horizontal axis feeding roll 25 by the inertial movement time after the drive stop of the transfer means 2 in advance after receiving the stop signal of the all stop switch 95. Therefore, the drive motor 81 is instantly adopted by the stop signal of the seedling raising container detecting means 80 to improve the sowing spot avoidance accuracy, and the sowing spot is not generated even by the stop control of the entire sowing device by the all stop switch 95. In addition, the sowing work can be resumed.
That is, the stop switch 93 stops only the rotation of the horizontal axis feeding roll 25 while the seedling raising container A is being transferred, while the all stop switch 95 stops both the transfer of the seedling raising container A and the rotation of the horizontal axis feeding roll 25. Since the inertia acts on the stop of the transfer of the seedling raising container A, the rotation of the horizontal axis feeding roll 25 is stopped in consideration of the inertia when the transfer of the seedling raising container A is stopped, so that the seeding spots are not generated. Allows the entire seeding device H to be stopped.
In the invention of claim 10, the base of the pair of link arms 85 is attached to a support member 82 provided on the transfer table 1 by a shaft 86 arranged side by side in the front-rear direction, and the tip of the link arm 85 has a shaft 88 in the front-rear direction. Since the seedling raising container A is attached to the vertical moving body 87 by the vertically arranged shaft 88, when the seedling raising container A comes into contact with the detection protrusion 89, the detection protrusion 89 moves upward while advancing, and is above the vertical moving body 87. It is possible to prevent the movement from becoming a resistance to the forward movement of the seedling raising container A, smooth the upward movement of the vertical moving body 87, and improve the detection accuracy of the seedling raising container A.
In the invention of claim 11, the seed supply device 7 is made to correspond to the length of the seedling raising container A used for the sowing work, and the seedling raising container detecting means 80 is at the detection position of the rear wall 79 of the seedling raising container A. Since the front wall 79 of the above is slid back and forth with respect to the transfer table 1 so as to be located below the seed feeding position of the horizontal axis feeding roll 25, the front and rear position can be adjusted. The position accuracy of the shaft feeding roll 25 with respect to the seed feeding position can be improved, and the sowing spot avoidance accuracy can be improved.
In the invention of claim 12, since the seed supply device 7 and the seedling raising container detecting means 80 are configured to be slidable back and forth relative to the transfer table 1, the adjustment range can be widened (widened) and general purpose. The sex can be improved.

(A) Overall side view of the seeding apparatus of the basic seeding form. (B) Overall side view of the sowing device in a row sowing state. Longitudinal side view of the floor soil supply device. Longitudinal side view of the irrigation system. Longitudinal side view of the seed supply device in a row-sown state. Front view of the horizontal axis feeding roll. The same perspective view. The explanatory view which shows an example of the sowing state by the horizontal axis feeding roll of FIG. The perspective view of the horizontal axis feeding roll of another embodiment. The perspective view of the horizontal axis feeding roll of another embodiment. The explanatory view which shows an example of the sowing state by the horizontal axis feeding roll of another embodiment. Explanatory drawing which shows an example of the sowing state of row sowing. (A) Longitudinal side view of the seed supply device in a row-sown state. (B) Longitudinal side view of the seed supply device in a sowed state. Side view of the vertical height switching adjustment mechanism and the slide mechanism. The same side view and bottom view. The same plan view. The front view and the rear view. Same bottom view. Top view of the slide mechanism. (A) Schematic diagram of a conventional seeding device. (B) Schematic diagram of the seeding apparatus of the present invention. Explanatory drawing which shows the slide example of the seed feeding apparatus. Longitudinal side view of the fertilizer application device. (A) A side view of a state in which the seedling raising container detecting means detects the seedling raising container. (B) A side view of a state in which the seedling raising container has passed through the seedling raising container detecting means. (C) A plan view of a seedling raising container detecting means. A side view of the seedling raising container detecting means. The same plan view. The same perspective view. A side view of another embodiment of the seedling raising container detecting means. The same perspective view. The same rear view and side view. The perspective view and the plan view. The side view and the plan view before the detection protrusion is placed on the front and rear walls of the seedling raising container, the side view and the plan view of the detection protrusion on the front and rear walls of the seedling raising container, and the detection protrusion is the seedling raising container. Side view and plan view of the state of descending from the front and rear walls.

Explaining one embodiment of the present invention with reference to the drawings, reference numeral 1 denotes a transfer table of a sowing device H, which has a transfer means 2 for transferring a seedling raising container A, and is configured to be placed on the floor by a support leg 3.
A floor soil supply device 4, a floor soil leveling brush 5, an irrigation device 6, a seed supply device 7, a soil cover supply device 8, etc. are provided above the transfer table 1 from the starting end side, and the soil supplied by these supply devices is provided. -Seeds, water, etc. are supplied from above while transferring the seedling raising container A by the transfer means 2 (FIG. 1).
In addition, in order to facilitate understanding, the directions of front-back, left-right, up-down, etc. are shown below with reference to the transfer direction of the seedling raising container A transferred forward by the transfer table 1. The structure of the invention is not limited.

The configuration of the floor soil supply device 4 is arbitrary, and a floor soil supply hopper 11 is provided above the floor soil supply frame 10, and an endless shape that rotates below the floor soil supply hopper 11 in a direction parallel to the transfer direction of the seedling raising container A. The floor soil supply belt 12 is provided (FIG. 2).
The configuration of the irrigation device 6 is arbitrary, a left-right irrigation pipe 16 is provided on the upper part of the irrigation frame 15, a water supply hose (not shown) is connected to the irrigation pipe 16, and the irrigation pipe 16 passes below from the irrigation hole. Irrigate the floor soil in the seedling raising container A (Fig. 3).
As will be described later, the irrigation device 6 is detachably attached to the transfer table 1 and is configured so that the installation position with respect to the seed supply device 7 can be changed.
The configuration of the seed supply device 7 is arbitrary, a seed supply hopper 21 is provided in the upper front side of the sowing frame 20, a flow grain plate 23 is provided below the seed supply port 22 of the seed supply hopper 21, and the tip of the seed supply plate 23 is provided. Is brought close to the outer peripheral surface of the horizontal axis feeding roll 25 in the left-right direction in which the seeds are fed (FIG. 4).

The configuration of the horizontal axis feeding roll 25 is also arbitrary, and the horizontal axis feeding roll 25 of FIGS. 5 and 6 has horizontal groove-shaped feeding recesses 26 parallel to the bus line direction formed on the entire circumference at desired intervals. The feeding recess 26 is formed so as to have a width in which the seeds G are fitted in one horizontal row. Slits 27 are provided on the outer peripheral surface of the horizontal axis feeding roll 25 at intervals shorter than the lateral width of one seed G in the left-right direction. The depth of the slit 27 is formed to be the same as or slightly deeper than that of the feeding recess 26, and a scraping knife 28 is fitted into each slit 27 (FIG. 4).
In the horizontal axis feeding roll 25 of FIGS. 5 and 6, seed G is sown in a horizontal strip state as shown in FIG. 7.
The horizontal axis feeding roll 25 of FIGS. 8 and 9 has a feeding recess 26 having a predetermined length in the bus direction of the horizontal axis feeding roll 25 and a roll outer surface portion 30 having the same length (area) as the feeding recess 26. The feeding recesses 26 and the roll outer surface portion 30 are alternately arranged in the direction of the generatrix of the 25, and the feeding recesses 26 and the roll outer surface portion 30 are alternately arranged in the rotation direction of the horizontal axis feeding roll 25, and the feeding recesses 26 are arranged in a staggered pattern as a whole. are doing.

That is, in sowing by the horizontal axis feeding roll 25, a predetermined amount of seeds are fitted in the feeding recess 26, and the predetermined amount of seed group G fitted in the feeding recess 26 and the seed group G having substantially the same size as the seed group G. Sowing is performed so that the space portion K and the seedling raising container A are alternately arranged in a staggered pattern in the width direction and the transfer direction (FIG. 8).
Therefore, when the rotation speed of the horizontal axis feeding roll 25 is increased with respect to the transfer speed of the seedling raising container A by the transfer table 1, the supply amount (sowing amount) of the seed G increases and the seeds are sown thickly. When the rotation speed is slowed with respect to the transfer speed of the seedling raising container A by the transfer table 1, the supply amount (sowing amount) of the seed G is reduced and the seeds are sown thinly.
Specifically, it corresponds to so-called thick sowing in which about 1 go (180 cc) of seeds are sown in one seedling raising container A and about 4 go (720 cc) is sown in one seedling raising container A, which is the same as so-called thin sowing. Therefore, healthy adult seedlings can be obtained by thin sowing, and seedling raising costs can be reduced by obtaining a large amount of seedlings by thick sowing.

Further, in any of the horizontal axis feeding rolls 25 of FIGS. 5 and 6 and the horizontal axis feeding rolls 25 of FIGS. 8 and 9, when the row sowing guide 31 described later is attached below the horizontal axis feeding roll 25, a seedling raising container is provided. It is possible to sow the seed G in a strip shape parallel to the transfer direction of A (FIG. 11).
Therefore, by selecting the horizontal axis feeding rolls 25 having different outer peripheral surface shapes, it is possible to handle sowing and row sowing, and the sowing device H is highly versatile and can be used for sowing from thin to thick sowing without seeding spots with high accuracy. Can be provided.
A rotary flattening brush 33 is provided at an upper position of the horizontal axis feeding roll 25 (to be exact, a rotation lowering side slightly above the horizontal axis feeding roll 25) (FIG. 4). The rotary leveling brush 33 sweeps back excess seeds that rotate together with the horizontal axis feeding roll 25 without fitting into the feeding recess 26 toward the upper side in the rotation direction of the horizontal shaft feeding roll 25.
Reference numeral 35 denotes a seed derivative provided on the side surface of the horizontal axis feeding roll 25, which guides the seeds fitted in the feeding recess 26 that has passed below the rotary leveling brush 33 from the upper position to the lower position.
Reference numeral 36 denotes an elastic body provided inside the seed derivative 35.

The row sowing guide 31 is provided below the lower end of the seed derivative 35. The configuration of the sowing guide 31 is arbitrary, but a guide body 39 having a plurality of split drop ports 38 in the left-right direction is attached to the sowing frame 20 by a link arm 40 so as to be movable up and down (FIG. 4).
The row sowing guide 31 stands by at a position below the upper surface of the seedling raising container A, and when the seedling raising container A is transferred and the front surface of the seedling raising container A abuts on the lower surface of the guide body 39, the seedling raising guide 31 moves upward and is transferred through the lower surface. The number of rows is sown in the container A as many as the number of split drop ports 38.
The row sowing guide 31 is detachably attached to the sowing frame 20 of the seed supply device 7, and is removed at the time of sowing.
The seed supply device 7 is vertically moved up and down by the vertical height switching adjusting mechanism 42 and is attached to the transfer table 1 so that the height position can be adjusted.

That is, by attaching and detaching the row sowing guide 31, the height of the seed supply device 7 can be switched to correspond to various sowing methods, and seeds can be supplied according to the seedling raising containers A having different vertical heights (thicknesses). The height position of the device 7 is adjusted so that the drop height of the seeds is brought closer to the seedling raising container A to improve the sowing accuracy.
As shown in FIG. 13, the vertical height switching adjustment mechanism 42 is provided with a pair of left and right support frames 43 that are long in the front-rear direction and are attached to the transfer table 1 side. The base of the rear rotating arm 45 is rotatably attached to each of the shafts 46.
The front rotating arm 44 and the rear rotating arm 45 are formed symmetrically, and the bases of the front and rear rotating arms 44 and the rear rotating arm 45 are formed in an arc shape, and the outer peripheral surface of the base is formed. A gear 47 is formed in each of the gears 47, and the gear 47 of the front rotating arm 44 and the gear 47 of the rear rotating arm 45 are meshed with each other. In this state, the front rotating arm 44 and the rear rotating arm 45 are supported. It is rotatably attached to the frame 43 by a shaft 46.

Further, the left and right front rotating arms 44 and the rear rotating arms 45 are connected by a connecting rod 48. The base of the operating lever 49 is fixed to the rotating end of either the gear 47 of the front rotating arm 44 or the rear rotating arm 45.
In the present embodiment, the operation lever 49 is provided on the front rotation arm 44.
Reference numeral 50 denotes a lever connecting rod for connecting the left and right operating levers 49.
Therefore, when the operation lever 49 is moved up and down, the operation lever 49 rotates up and down around the shaft 46, and the up and down rotation of the operation lever 49 causes the front rotation arm 44 provided with the operation lever 49 to rotate up and down, and the front side. The rotation of the rotating arm 44 is transmitted to the rear rotating arm 45 via the gear 47 to rotate the rear rotating arm 45 up and down, and as a result, the seed supply device 7 is moved up and down.
One end of the arm 51 is pivotally attached to the tip of the rear rotating arm 45 not provided with the operating lever 49, and the engaging shaft 52 in the left-right direction is fixed to the other end of the arm 51. The engaging shaft 52 is selectively engaged with either the sowing engaging groove group 53 or the row sowing engaging groove group 54 formed at the rear portion of the support frame 43.

That is, when used for sowing, the engaging shaft 52 is engaged with any of the sowing engaging groove groups 53 to position the entire seed supply device 7 downward, and when used for row sowing, it is engaged. The shaft 52 is engaged with any of the row sowing engagement groove groups 54 to position the entire seed supply device 7 upward, and the engagement shaft 52 is engaged so that it can be used in seedling raising containers A of various heights. By changing the combined height, the height of the seed supply device 7 can be finely adjusted.
As shown in FIG. 1B, when sowing the seeds, a stripped roll B is attached to the transfer table 1 on the rear side (starting end side) of the seed supply device 7, and a groove is provided on the transfer table 1 on the front side of the seed supply device 7. A suppression roll C that breaks the formed mountain is attached, and the irrigation device 6 is always provided on the lower side in the transfer direction of the seed supply device 7 for so-called post-irrigation. When the roll C is moved upward and used for row seeding, the row seeding guide 31 is attached below the horizontal axis feeding roll 25, and the striped roll B and the suppression roll C come into contact with the upper surface of the floor soil in the seedling raising container A. Position at height.

Thus, the seed supply device 7 of the present invention is slidably attached to the pair of left and right transfer frames 60 of the transfer table 1 by a slide mechanism 61 (FIG. 13).
Therefore, by sliding the seed supply device 7 back and forth, it is possible to secure a space for installing the fertilizer application device (medicine application device) 63 and the like described later on the transfer table 1, and the transfer table 1 is shared with various sowing devices H. It can be used and contributes to the generalization of the seeding device H.
Although the fertilizer application device 63 can supply both fertilizer members and chemicals, it is described as a "fertilizer application device" for easy understanding, and similarly, the irrigation device 6 is also a chemical solution in addition to the usual "water". Spraying is also possible, but will be described as "irrigation", which does not limit the configuration of the present invention.

Originally, the shorter the length of the transfer table 1 is, the more advantageous the seeding device H is in transporting, storing, etc. However, as shown in the schematic view of FIG. 19A, for example, tentatively, the floor soil supply device 4 and the soil cover Assuming that one irrigation device 6 and two fertilizer application devices 63 are provided between the supply devices 8, if the positions of the seed supply devices 7 are fixed, the irrigation device 6 will give the seed supply device 7 to the seed supply device 7. There is a seeding form in which pre-irrigation before seed supply by the seed supply device 7 and post-irrigation after seed supply by the seed supply device 7 are performed. Similarly, the fertilizer application device 63 refers to the seed supply device 7 before the seed supply by the seed supply device 7. Since there is a seeding form of pre-fertilization and post-fertilization after seed supply by the seed supply device 7, a space for installing the front irrigation device 6 and the front fertilizer application device 63 is required between the bed soil supply device 4 and the seed supply device 7. Therefore, a space for installing the rear fertilizer application device 63 and the rear irrigation device 6 is required between the seed supply device 7 and the soil cover supply device 8.

In this case, the fertilizer application device 63 may apply fertilizer before and after the seed supply device 7, but the irrigation by the irrigation device 6 is usually either pre-irrigation before seed supply or post-irrigation after seed supply of the seed supply device 7. Since it is common to use the seeds, securing a space for installing the irrigation device 6 in front of and behind the seed supply device 7 causes the length of the transfer table 1 to become long.
In the present invention, the seed supply device 7 is configured to be slidable back and forth, so that the length of the transfer table 1 is shortened while securing an installation space in which the retrofit irrigation device 6 and the fertilizer application device 63 can be installed in advance. It was done.
That is, as shown in the schematic view of FIG. 19B, by sliding the seed supply device 7 corresponding to the front-rear length of one irrigation device 6, one irrigation device 6 and two fertilizer application devices 63 can be installed. Compared with the schematic view of FIG. 19A, the length of the transfer table 1 can be shortened by about the front-rear length of one irrigation device 6.

The configuration of the slide mechanism 61 is arbitrary, but as an example, a support plate 65 having a horizontal horizontal plate shape and long holes 64 in the front-rear direction is attached to the transfer table 1 in a fixed state, and the support plate 65 is attached. In the elongated hole 64 of the seed supply device 7, a guide pin 66 that protrudes downward provided on the sowing frame 20 side of the seed supply device 7 or a guide that protrudes downward provided on the support frame 43 of the vertical height switching adjustment mechanism 42 of the seed supply device 7. With the pin 66 engaged and the seed supply device 7 positioned in the front-rear predetermined position, the sowing frame 20 of the seed supply device 7 or the support frame 43 of the vertical height switching adjustment mechanism 42 is placed in the front-rear central portion of the support plate 65. It is configured to be fixed to the mounting hole 67 provided in the above by a fixing shaft 69 of the fixing bolt 68.
That is, when the seed supply device 7 is provided with the vertical height switching adjustment mechanism 42, the guide pin 66 is provided on the support frame 43 so as to project downward (FIG. 17), and the guide pin 66 is provided in the elongated hole of the support plate 65. Engage with 64.

When the seed supply device 7 is not provided with the vertical height switching adjustment mechanism 42, a guide pin 66 is provided on the sowing frame 20 side of the seed supply device 7, and the guide pin 66 is inserted into the elongated hole 64 of the support plate 65. Engage.
Then, the support plate 65 and the support frame 43 or the sowing frame 20 of the vertical height switching adjustment mechanism 42 are fixed so as not to be movable back and forth by the fixing shaft 69 of the fixing bolt 68.
Reference numeral 70 denotes a mounting hole for the fixing shaft 69 of the fixing bolt 68 (FIG. 18).
As described above, assuming that one irrigation device 6 and two fertilizer application devices 63 are provided between the bed soil supply device 4 and the soil cover soil supply device 8, the arrangement example of the irrigation device 6, the seed supply device 7, and the fertilizer application device 63 is as follows. Although there are a wide variety, in order to facilitate understanding of the case where the seed supply device 7 is slid back and forth, a representative example is shown in FIG. 20. In NO1 of FIG. 20, the bed soil supply device 4, the irrigation device 6, and the seed supply device are shown. 7 and the soil cover supply device 8 are mounted on the transfer table 1, and the seed supply device 7 is located at a reference position in the middle of the front and rear. In NO2 of FIG. 20, the irrigation device 6 and the seed supply device 7 are used. It is shown that there is no space (margin) for installing the rear fertilizer application device 63 between the and.

NO3 in FIG. 20 shows a state in which the seed supply device 7 is slid from the basic position to the front side and the rear fertilizer application device 63 is installed between the irrigation device 6 and the seed supply device 7.
NO4 in FIG. 20 shows a state in which the front fertilizer application device 63 is added between the seed supply device 7 and the soil covering device 8 in the state of NO3.
NO5 in FIG. 20 shows a state in which the front irrigation device 6 is relocated between the seed supply device 7 and the soil covering device 8 from the state of NO3, which is a so-called pre-fertilization / post-irrigation sowing mode.
In NO6 of FIG. 20, in the state of NO5, since there is no space between the seed supply device 7 and the soil covering device 8 to install the front fertilizer application device 63 in addition to the front irrigation device 6, the seed supply device 7 is rearranged at the basic position. The side slides to show the state in which the front side irrigation device 6 and the front side fertilizer application device 63 are installed, which is a so-called post-fertilization / post-irrigation seeding form.

In NO7 of FIG. 20, a state in which the rear fertilizer application device 63 is installed in the space where the rear irrigation device 6 of NO1 was installed in the state of NO6 is shown, which is a so-called pre-fertilization / post-fertilization / post-irrigation seeding form. ..
Specifically, at least at the upper position of the transfer table 1, a bed soil supply device 4 that supplies the bed soil from above into the seedling raising container A from the starting end side, and an irrigation device 6 that irrigates the seedling raising container A from above. A seed supply device 7 for supplying seeds from above in the seedling raising container A and a soil covering device 8 for supplying soil covering from above are provided in the seedling raising container A, and the irrigation device 6 is attached to and detached from the transfer table 1. The seed supply device 7 is freely attached to the transfer table 1 and slid back and forth in the transfer direction.

A fertilizer application device 63 for supplying fertilizer members or chemicals to the seedling raising container A being transferred is separately prepared, and the length of the transfer table 1 between the bed soil supply device 4 and the seed supply device 7 after moving forward is set in advance. The length of the transfer table 1 between the soil covering device 8 and the soil covering device 8 after moving backward is set as an installation space in which the two irrigation devices 6 and the fertilizer application device 63 can be installed. The installation space is set so that the fertilizer application device 63 can be installed.
It is preferable that the seed supply device 7 is configured to be slidable back and forth by at least one irrigation device 6 or a fertilizer application device 63 having a length substantially the same as the front and back length.

The configuration of the fertilizer application device 63 is arbitrary, but in the present embodiment, as shown in FIG. 21, a supply hopper 74 is provided above the fertilizer application frame 73, and a fertilizer application roll 75 is provided below the fertilizer application hopper 74, and fertilizer application delivery is performed. A feeding recess 76 into which the granular fertilizer member or the granular chemical is fitted is provided on the outer peripheral surface of the roll 75, and a rotation for sweeping back the granular fertilizer member or the granular chemical not fitted in the feeding recess 76 above the fertilizer feeding roll 75. A brush 77 is provided, and a granular fertilizer member or a derivative 78 that guides a granular chemical agent fitted in a feeding recess 76 that has passed below the rotating brush 77 is provided on the rotation lowering side of the fertilizer feeding roll 75.
As described above, the fertilizer application device 63 is detachably attached to the transfer table 1 and is configured so that the installation position with respect to the seed supply device 7 can be changed.

Reference numeral 79 denotes a detachable tool, and the fertilizer application device 63 can be attached to and detached from the transfer table 1 by a one-touch operation without using a tool.
Then, on the rear side of the seed supply device 7, a seedling raising container detecting means 80 for detecting the position of the front and rear walls 79 of the seedling raising container A continuously transferred by the transfer table 1 without a gap is provided (FIG. 22). The seedling raising container detecting means 80 detects that the front and rear walls 79 of the seedling raising container A are located below the horizontal axis feeding roll 25, stops the drive motor 81 of the horizontal axis feeding roll 25 of the seed supply device 7, and causes the front and rear walls 79. Prevent seeds from resting on top.
Conventionally, the seeds placed on the front and rear walls 79 after the seeds are supplied by the seed supply device 7 are swept back into the seedling raising container A with a rotating brush, but the sowing density of the seedling raising container A of the swept back seeds is high. It was the cause of sowing spots.

In the present invention, the seedling raising container detecting means 80 detects that the front and rear walls 79 of the seedling raising container A have reached below the horizontal axis feeding roll 25, and stops the drive motor 81 of the horizontal axis feeding roll 25 of the seed supply device 7. ..
That is, the horizontal axis feeding roll 25 of the seed supply device 7 is configured to be rotationally driven by a drive motor 81 independent of the transfer means 2 of the transfer table 1, and the drive motor 81 is stopped.
The seedling raising container detecting means 80 attaches the mounting plate portion 83 of the support member 82 to the transfer frame 60 of the transfer base 1, and the base portion of a pair of upper and lower link arms (parallel links) 85 on the rear plate 84 standing at the rear portion of the mounting plate portion 83. Is rotatably attached by the shaft 86, and the vertically moving body 87 is rotatably attached to the tip of the link arm 85 by the shaft 88.
That is, the base of the link arm 85 is attached by the shafts 86 arranged vertically.

The vertical moving body 87 is provided with a detection protrusion 89 projecting downward, and a sliding contact body 90 is provided on the front side of the detection protrusion 89 to slide and move the upper surface of the side plate of the seedling raising container A.
A guide surface 91 that inclines backward is provided on the rear side of the detection protrusion 89, and when it hits the rear wall 79 of the seedling raising container A, the vertical moving body 87 is moved upward.
A retracting surface 91A that inclines forward is provided on the front side of the detection protrusion 89, and when the detection protrusion 89 passes through the front wall 79 of the seedling raising container A, it immediately descends and starts driving the drive motor 81.
That is, the detection protrusion 89 is formed in a triangular shape downward when viewed from the side, and the lower apex becomes the detection protrusion 89 and makes point contact with the upper surface of the front and rear walls 79 of the seedling raising container A. Therefore, the front wall of the seedling raising container A The stroke from the front surface of the 79 to the rear surface of the rear wall 79 can be detected, improving the detection accuracy.

Further, the guide surface 91 on the rear side and the retracting surface 91A on the front side of the detection protrusion 89 guide the detection protrusion 89 up and down, and the detection protrusion 89 moves up and down in parallel by the link arm (parallel link) 85. Therefore, the vertical movement of the detection protrusion 89 does not become a transport resistance of the seedling raising container A, and the occurrence of sowing trouble is prevented.
The sliding contact body 90 makes the guide surface 91 of the detection protrusion 89 stand by at a predetermined height by sliding contact moving on the upper surface of the side plate of the seedling raising container A, but the sliding contact body 90 is rotated to the vertical moving body 87 by the shaft 90A. By movably attaching the sliding contact body 90, the sliding contact height can be changed, whereby the standby height of the guide surface 91 of the detection protrusion 89 can be adjusted.

Therefore, the seedling raising containers A having different heights can be immediately dealt with, and even if the seedling raising containers A having different heights are mixed, the detection protrusion 89 follows up and down.
The upper edge portion of the vertical moving body 87 on the upper front side portion of the detection protrusion 89 forms a contact portion 92, and the sensing body 94 of the stop switch 93 is provided above the contact portion 92 by the vertical movement of the vertical moving body 87. When the front wall 79 of the seedling raising container A during transfer (the front wall 79 of the leading seedling raising container A hits at the start of work, but the rear wall 79 of the seedling raising container A abuts during continuous transfer) is detected, the detector 94 The contact portion 92 of the vertical moving body 87 comes into contact with the seedling raising container 87, whereby the seedling raising container detecting means 80 detects the front and rear walls 79 of the seedling raising container A and stops the drive motor 81 of the horizontal axis feeding roll 25.

In this case, the seedling raising container detecting means 80 is installed at a position where the vertical moving body 87 abuts on the rear wall 79 of one seedling raising container A from the position where the horizontal axis feeding roll 25 of the seed supply device 7 drops the seeds.
Therefore, in reality, the seedling raising container detecting means 80 detects the position of the rear wall 79 of the seedling raising container A so that the front wall 79 of the seedling raising container A being transferred reaches the seed drop position of the horizontal axis feeding roll 25. By doing so, it will be detected.
However, at the manufacturing and assembling stage of the sowing device H, the seedling raising container detecting means 80 is attached to the transfer table 1 in advance assuming the length of one seedling raising container A, and the set external dimensions of the seedling raising container A ( When using a seedling raising container A different from the front-back length), the seed supply device 7 is slid back and forth by the slide mechanism 61 according to the external dimensions of the seedling raising container A to be used.
Alternatively, the seedling raising container detecting means 80 is slid back and forth with respect to the seed supply device 7.

That is, the seed supply device 7 and the seedling raising container detecting means 80 are configured to be slidable back and forth relative to the transfer table 1.
In this way, the seedling raising container H is provided with the seedling raising container detecting means 80 for detecting the front and rear walls 79 of the seedling raising container A, and the position of the seed supply device 7 with respect to the seedling raising container detecting means 80 is adjusted to the length of the seedling raising container A. In combination with the provision of the slide mechanism 61 that allows the seeds to slide back and forth, it is possible to execute highly accurate rotation stop control of the horizontal axis feeding roll 25 of the seed supply device 7.
Normally, the position of the seed supply device 7 with respect to the seedling raising container detecting means 80 may be slid back and forth according to the length of the seedling raising container A, but in a special case, the seedling raising container detecting means 80 can be adjusted in the front and back position. To do.

That is, since the total thickness of the front wall 79 and the rear wall 79 of the seedling raising container A is about 10 mm, the adjustment length due to the difference in the external dimensions of the seedling raising container A is assumed to be about 30 mm, and the seeds are supplied. The seedling raising container detecting means 80 is set to be slidable back and forth with respect to the device 7, and further, due to various circumstances such as the installation space of the irrigation device 6 and the two fertilizer application devices 63, or the seam of the transfer frame 60 of the transfer table 1, the seedling raising device is set. The container detecting means 80 and the seed supply device 7 are configured to be relatively slidable back and forth by about 100 to 250 mm.

In other words, in FIG. 1A, there is a rotating brush 6 on the rear side (front side) of the seedling raising container detecting means 80, a pre-irrigation device 6 is installed on the front side of the seedling raising container detecting means 80, and the seedling raising container detecting means. Since there is a seam of the transfer frame 60 of the transfer table 1 between the 80 and the pre-irrigation device 6 and there is a mounting portion of the support leg 3, the seed supply container detection means 80 is restricted by the amount of front-rear slide, but the seed supply device. The installation space for the pre-irrigation device 6 and the pre-fertilization device 63 (FIG. 20NO3) is secured while ensuring the distance between the seedling raising container detecting means 80 and the front-rear slide amount of 7.
83A is a long hole for adjusting the front-rear position of the seedling raising container detecting means 80 provided in the mounting plate portion 83 of the support member 82, and 83B is a mounting for fixing the seedling raising container detecting means 80 provided in the mounting plate portion 83 of the support member 82. It is a hole, and although not shown, a fixing bolt is inserted and fixed to the transfer frame 60 of the transfer table 1.

26 to 30 show another embodiment of the nursery container detecting means 80, in which the bases of a pair of link arms 85 for raising and lowering the vertical moving body 87 (detection protrusion 89) are supported by shafts 86 arranged side by side in the front-rear direction. It is attached to the member 82.
The tip of each link arm 85 is rotatably attached to the vertically moving body 87 by a shaft 88 arranged in parallel in the front-rear direction. The stop switch 93 is configured to be vertically adjustable with respect to the vertically moving body 87.
Therefore, the vertical movement of the vertical moving body 87 (detection protrusion 89) can be smoothed, and the height position of the stop switch 93 can be adjusted to the height of the seedling raising container A, improving the detection accuracy of the seedling raising container detecting means 80. Be made to.

That is, if the height position of the stop switch 93 is not adjusted to the height of the seedling raising container A, for example, when the seedling raising container A lower than the set height of the stop switch 93 is transferred, the lower seedling raising container A becomes the seedling raising container. Even if the detection means 80 (detection protrusion 89) is moved upward, the contact portion 92 of the vertical moving body 87 does not come into contact with the stop switch 93, and the stop switch 93 cannot detect the seedling raising container A. Although seeds are dropped on the front and rear walls 79 of A, in the present invention, the detection accuracy of the seedling raising container detection means 80 can be improved by adjusting the height position of the stop switch 93 to the height of the seedling raising container A.

Further, in the link arm 85 of the first embodiment, since the vertical moving body 87 (detection protrusion 89) is moved up and down by the shafts 86 arranged vertically, the front wall 79 or the rear wall 79 of the seedling raising container A is the detection protrusion 89. When the guide surface 91 is in contact with the guide surface 91, the forward movement distance is smaller than the upward movement distance of the guide surface 91, and the vertical movement of the vertical moving body 87 may be a resistance to the forward movement of the seedling raising container A. Since the link arm 85 of the embodiment moves the vertical moving body 87 (detection protrusion 89) up and down by the shafts 86 arranged side by side in the front-rear direction, the link arm 85 is forward with respect to the upward movement distance of the guide surface 91 as compared with the link arm 85 of the first embodiment. A sufficient moving distance can be secured, the possibility that the vertical movement of the vertical moving body 87 becomes a resistance to the forward movement of the seedling raising container A is reduced, and the vertical movement of the vertical moving body 87 can be smoothed.

Specifically, for the support member 82, the side plate 82A is raised on the mounting plate portion 83, the top plate 82B is continuously provided on the upper portion of the side plate 82A, the inner side plate 82C is continuously provided on the inside of the top plate 82B, and the inner side plate is connected. The bases of a pair of front and rear link arms 85 are rotatably attached to 82C by a shaft 86 arranged side by side at predetermined intervals in the front and rear directions.
A vertical moving body 87 is attached to the tip of the link arm 85 by a shaft 88.
The vertical moving body 87 always stands by with the link arm 85 in a vertical state by its own weight, and does not require a stopper for holding the link arm 85 in a predetermined standby position.
The vertical moving body 87 is provided with a detection protrusion 89 projecting downward, and a sliding contact body 90 is provided behind the detection protrusion 89 to slide and move the upper surface of the side plate of the seedling raising container A.

Therefore, the vertical moving body 87 in the standby position first comes into contact with the arc-shaped guide portion 90B at the rear of the sliding contact body 90 with the front wall 79 of the seedling raising container A, whereby the vertical moving body 87 moves forward while starting to move upward. ..
A guide surface 91 that inclines backward is provided on the rear side of the detection protrusion 89, and when the front wall 79 or the rear wall 79 of the seedling raising container A hits the guide surface 91, the vertical moving body 87 is moved upward.
A retracting surface 91A that inclines forward is provided on the front side of the detection protrusion 89, and when the detection protrusion 89 passes the upper surface of the front wall 79 or the rear wall 79 of the seedling raising container A, it immediately descends and the seed supply device 7 The drive motor 81 is driven to rotate the horizontal axis feeding roll 25, and sowing is started.

The upper edge portion of the vertical moving body 87 in the upper portion of the detection protrusion 89 forms the abutting portion 92, and the sensing body 94 of the stop switch 93 is provided above the abutting portion 92.
The stop switch 93 is vertically movablely attached to the side plate 82A of the support member 82, and the height of the stop switch 93 is adjusted up and down according to the height of the seedling raising container A.
That is, with the lower end of the detection protrusion 89 placed on the upper surface of the front and rear walls 79 of the seedling raising container A, the height of the sensor 94 of the stop switch 93 is adjusted so as to turn the stop switch 93 on (off).
Therefore, when the lower end of the detection protrusion 89 is slightly lowered from the upper surface of the front and rear walls 79, the seed supply device 7 is turned off (on) and the rotation of the horizontal axis feeding roll 25 of the seed supply device 7 is restarted.

The actual on / off timing of the sensor 94 of the stop switch 93, the contact portion 92 of the vertical moving body 87, and the stop switch 93 may be relatively arbitrarily set.
That is, the stop switch 93 may have different on and off timings of the stop switch 93 depending on the positional relationship between the main body of the stop switch 93 and the sensor 94, but by changing the height of the stop switch 93, It is possible to absorb the error due to the product variation of the stop switch 93.
The stop switch 93 is attached to the switch mounting plate 93A, and the screw shaft of the height adjusting dial 93C is screwed into the protruding plate 93B of the switch mounting plate 93A.

Therefore, when the height adjusting dial 93C is rotated, the stop switch 93 is moved up and down together with the switch mounting plate 93A, and the height of the stop switch 93 can be adjusted.
93E is a fixed screw, and 93F is a long hole for height adjustment.
The stop switch 93 is also mounted so as to be adjustable in position in the left-right direction.
Further, the seedling raising container A sown by the sowing device H is transferred to the end of the transfer table 1 by the transfer means 2, and is taken out from the transfer table 1 by a manual operation or an extraction device (not shown), but there is a problem with the manual operation or the extraction device. A full stop switch 95 is provided to stop the entire seeding device H when there is a problem.

In this case, when the sowing device H is completely stopped by the operation of the all stop switch 95, a time lag occurs between the transfer stop of the transfer means 2 and the rotation stop of the horizontal axis feeding roll 25 of the seed supply device 7. Seedling spots will occur in the seedling raising container A.
That is, when the rotation of the horizontal axis feeding roll 25 of the seed supply device 7 is instantaneously stopped at the same timing as the stop signal by the stop switch 93, the seedling raising container A moving below the seed supply device 7 is transferred from the transfer means 2. Even if the drive is stopped, the seedlings move forward due to inertia, so that a portion (non-sown portion) that has not been sown is generated in the nursery container A having a forward movement distance due to inertia.

Therefore, in the present invention, the stop control of the drive motor 81 of the horizontal axis feeding roll 25 is delayed by the inertial movement time after the driving stop of the transfer means 2 in advance in the case of the stop signal of the all stop switch 95, and the horizontal axis feeding roll The so-called delay control for stopping the drive motor 81 of the 25 is executed.

In other words, the floor soil supply device 4 and the soil cover supply device 8 are driven by using the drive source of the transfer means 2, but the horizontal axis feeding roll 25 of the seed supply device 7 is the transfer means 2 of the transfer table 1. Is driven to rotate by an independent drive motor 81, so when the sowing device is completely stopped by the stop signal of the all stop switch 95, the soil supply device 4 is supplied, the irrigation device 6 is irrigated, and the seeds are supplied. When all of the seed supply of the device 7 and the soil cover supply of the soil covering device 8 are stopped, and then the stop signal of the all stop switch 95 is released, the sowing device resumes the sowing work, but the horizontal axis of the seed supply device 7 Since only the drive motor 81 of the feeding roll 25 can be stopped instantly (instantaneous start can be started), the delay control as described above is executed, but in other supply devices, the drive source of the transfer means 2 is used. Since it is driven, there is almost no time lag between the supply stop and the transfer stop, so that the sowing device can restart the sowing operation from the stopped state without any problem.

The control means of the drive motor 81 is arbitrary. In the present embodiment, the controller 81A of the drive motor 81 controls the stepless speed change of the rotation of the drive motor 81, and the drive motor 81 is controlled by the stop signal of the all stop switch 95. Although the stop is controlled, it may be incorporated in the operation unit (not shown) of the seeding device H.

(Action of Embodiment)
The present invention has the above-mentioned configuration, and the gist is that the seed supply device 7 is slidably provided in the transfer direction with respect to the transfer table 1. By sliding the seed supply device 7, the installation position of the irrigation device 6 is provided. The seeding device H can be changed and the fertilizer application device 63 and the like can be retrofitted to obtain a highly versatile seeding device H.

That is, originally, the shorter the length of the transfer table 1, the more advantageous it is for transportation, storage, etc., but as shown in the schematic view of FIG. 19A, for example, temporarily, the floor soil supply device 4 and the soil cover supply device 8 If one irrigation device 6 and two fertilizer application devices 63 are provided between them and the position of the seed supply device 7 is fixed, the irrigation device 6 is provided with respect to the seed supply device 7 before seed supply by the seed supply device 7. There is a seeding form in which the seeds are pre-irrigated and the seeds are irrigated after the seeds are supplied by the seed supply device 7. Similarly, the fertilizer application device 63 refers to the seed supply device 7 with the pre-fertilization and seeds before the seed supply by the seed supply device 7. Since there is a seeding form of post-fertilization after seed supply by the supply device 7, a space for installing the front irrigation device 6 and the front fertilizer application device 63 is required between the bed soil supply device 4 and the seed supply device 7, and the seeds are required. A space for installing the rear fertilizer application device 63 and the rear irrigation device 6 is required between the supply device 7 and the soil cover supply device 8.

In the present invention, as shown in the schematic view of FIG. 19B, one irrigation device 6 and two fertilizer application devices 63 can be installed by sliding the seed supply device 7 according to the front-back length of one irrigation device 6. However, the length of the transfer table 1 can be shortened by approximately the front-rear length of one irrigation device 6 as compared with the schematic view of FIG. 19A.
As described above, for example, assuming that one irrigation device 6 and two fertilizer application devices 63 are provided between the floor soil supply device 4 and the soil cover soil supply device 8, the irrigation device 6, the seed supply device 7, and the fertilizer application device 63 are arranged. There are various examples, but in order to facilitate understanding of the case where the seed supply device 7 is slid back and forth, a representative example is shown in FIG. 20. In NO2 of FIG. 20, between the irrigation device 6 and the seed supply device 7. Indicates that there is no space (margin) for installing the rear fertilizer application device 63.

NO3 in FIG. 20 shows a state in which the seed supply device 7 is slid from the basic position to the front side and the rear fertilizer application device 63 is installed between the irrigation device 6 and the seed supply device 7.
NO4 in FIG. 20 shows a state in which the front fertilizer application device 63 is added between the seed supply device 7 and the soil covering device 8 in the state of NO3.
NO5 in FIG. 20 shows a state in which the front irrigation device 6 is relocated between the seed supply device 7 and the soil covering device 8 from the state of NO3, which is a so-called pre-fertilization / post-irrigation sowing mode.
In NO6 of FIG. 20, in the state of NO5, since there is no space between the seed supply device 7 and the soil covering device 8 to install the front fertilizer application device 63 in addition to the front irrigation device 6, the seed supply device 7 is rearranged at the basic position. The side slides to show the state in which the front side irrigation device 6 and the front side fertilizer application device 63 are installed, which is a so-called post-fertilization / post-irrigation seeding form.

In NO7 of FIG. 20, a state in which the rear fertilizer application device 63 is installed in the space where the rear irrigation device 6 of NO1 was installed in the state of NO6 is shown, which is a so-called pre-fertilization / post-fertilization / post-irrigation seeding form. ..
The configuration of the slide mechanism 61 is arbitrary, but the front and rear central portions of the support plate 65 are fixed to the transfer frame 60 of the transfer table 1 by the fixing shaft 69 of the shaft fixing bolt 68. A pair of front and rear elongated holes 64 are provided in the support plate 65 with the fixing shaft 69 of the fixing bolt 68 interposed therebetween. A guide pin 66 provided on the seed supply device 7 side is engaged with the elongated hole 64. When the seed supply device 7 is provided with the vertical height switching adjustment mechanism 42, the guide pin 66 is provided with the guide pin 66 so as to project downward from the support frame 43, and the guide pin 66 is provided with the elongated hole 64 of the support plate 65. Engage in.

When the seed supply device 7 is not provided with the vertical height switching adjustment mechanism 42, a guide pin 66 is provided on the sowing frame 20 side of the seed supply device 7, and the guide pin 66 is inserted into the elongated hole 64 of the support plate 65. Engage.
Then, the support plate 65 and the support frame 43 or the seeding frame 20 of the vertical height switching adjustment mechanism 42 are fixed to each other by the fixing bolt mounting holes 67 so as not to be movable back and forth.
The front and rear walls 79 are mounting holes for mounting holes 67.

<Normal sowing form>
As shown by NO1 in FIG. 20, in the seeding device H in the normal sowing form, the soil supply device 4, the floor soil leveling brush 5, the irrigation device 6, the seed supply device 7, and the soil cover are placed on the transfer table 1 from the starting end side. The seedling raising container A provided in the order of the supply device 8 and transferred by the transfer means 2 receives the supply of the bed soil below the bed soil supply device 4, and then the bed soil in the seedling raising container A by the irrigation device 6. Seeds are supplied by the seed supply device 7 on the floor soil in the irrigated seedling raising container A, and then the soil cover is supplied by the soil cover supply device 8.
In this case, the seed supply device 7 is installed at a reference position in the middle of the front and rear slide range, and as shown in NO2 of FIG. 20, the interval at which the fertilizer application device 63 cannot be installed between the irrigation device 6 and the seed supply device 7. It is said.
Therefore, the distance between the irrigation device 6 and the soil covering device 8 can be further shortened.

<Pre-irrigation / pre-fertilization sowing form>
As shown by NO3 in FIG. 20, the seed supply device 7 is slid to the front side, and the rear fertilizer application device 63 is installed between the rear irrigation device 6 and the seed supply device 7.
Therefore, the seedling raising container A supplied with the bed soil is irrigated by the rear irrigation device 6 before seed supply (this is called pre-irrigation by those skilled in the art), and then fertilized by the rear fertilizer application device 63, and then fertilized. , The seed supply device 7 receives the seed supply, and then the soil cover supply device 8 receives the soil cover, and sowing is completed.

<Pre-irrigation / pre-fertilization / post-fertilization / sowing form>
As shown by NO4 in FIG. 20, with the seed supply device 7 slid forward, the rear fertilizer application device 63 is installed between the rear irrigation device 6 and the seed supply device 7, and the seed supply device 7 is installed. An anterior watering device 6 is installed between the soil covering device 8 and the soil covering device 8.
Therefore, the rear irrigation device 6 is used for pre-irrigation, the rear fertilizer application device 63 is used for pre-fertilization, the seed supply device 7 is used for seed supply, the front side fertilizer application device 63 is used for post-fertilization, and then the soil cover device 8 is used for soil cover. Upon receiving the supply, sowing is completed.

<Pre-fertilization / post-irrigation sowing form>
As shown by NO5 in FIG. 20, in a state where the seed supply device 7 is slid forward from the reference position, the rear fertilizer application device 63 is installed on the rear side of the seed supply device 7, and the seed supply device 7 and the seed supply device 7 are installed. A front irrigation device 6 is installed between the soil cover supply devices 8.
Therefore, the seedling raising container A to which the soil is supplied is pre-fertilized by the rear fertilizer application device 63, and then irrigated by the front irrigation device 6 after the seeds are supplied by the seed supply device 7 (those skilled in the art will post it). The seeding is completed by receiving the soil covering by the soil covering supply device 8 (referred to as irrigation).

<Post-fertilization / post-irrigation / sowing form>
As shown by NO6 in FIG. 20, the front fertilizer application device 63 and the front irrigation device 6 are installed between the seed supply device 7 and the soil covering device 8 in a state where the seed supply device 7 is slid to the rear side.
Therefore, the seedling raising container A that has received the bed soil supply receives post-fertilization by the front fertilizer application device 63 after seed supply by the seed supply device 7, is post-irrigated by the front irrigation device 6, and supplies the soil cover by the soil cover device 8. After receiving, sowing is completed.

<Pre-fertilization / post-fertilization / post-irrigation / sowing form>
As shown by NO7 in FIG. 20, in a state where the seed supply device 7 is slid to the rear side, the rear fertilizer application device 63 is installed in the installation space of the original rear side irrigation device 6, and the seed supply device 7 and the seed supply device 7 are installed. A front fertilizer application device 63 and a front irrigation device 6 are installed between the soil cover supply devices 8.
Therefore, the seedling raising container A that has received the bed soil supply is subjected to post-fertilization by the front fertilizer application device 63 and post-irrigated by the front irrigation device 6 after the pre-fertilization by the rear fertilizer application device 63 and the seed supply by the seed supply device 7. The soil covering supply device 8 receives the soil covering and sowing is completed.

In addition to the above, although not shown, normally, before and after seed supply of the seed supply device 7, irrigation is not performed twice, but between the seed supply device 7 of NO3 and the soil covering device 8 of FIG. The front side irrigation device 6 may be provided in the plant, or a unique supply device may be provided in the installation space on the transfer table 1 to provide a wide variety of seeding forms.
In the slide mechanism 61, the front-rear central portion of the support plate 65 is fixed to the transfer frame 60 of the transfer base 1 by the fixing shaft 69 of the shaft fixing bolt 68, and the long hole 64 in the front-rear direction is fixed to the support plate 65 by the fixing bolt 68. A pair of front and rear holes are provided with the shaft 69 interposed therebetween, and a guide pin 66 provided on the seed supply device 7 side is engaged with the elongated hole 64 to form a support plate 65 and a support frame 43 or a sowing frame 20 of the vertical height switching adjustment mechanism 42. Is fixed so that it cannot move back and forth by the fixing bolt mounting hole 67. Therefore, when the dial of the mounting hole 67 is turned and removed, the entire seed supply device 7 becomes movable back and forth with respect to the transfer table 1 and moves back and forth to a predetermined position. And fix it by the mounting hole 67.

Then, on the rear side (starting end side) of the seed supply device 7, a seedling raising container detecting means 80 for detecting the positions of the front and rear walls 79 of the seedling raising container A continuously transferred by the transfer table 1 without a gap is provided. Therefore, the seedling raising container detecting means 80 detects that the front and rear walls 79 of the seedling raising container A are located below the horizontal axis feeding roll 25, and stops the drive motor 81 of the horizontal axis feeding roll 25 of the seed supply device 7. Prevents seeds from resting on the front and rear walls 79.
Therefore, conventionally, the seeds placed on the front and rear walls 79 after the seeds are supplied by the seed supply device 7 are swept back into the seedling raising container A with a rotating brush, but the seeding density of the seedling raising container A is equal to the amount of the swept seeds. However, in the present invention, the seedling raising container detecting means 80 detects that the front and rear walls 79 of the seedling raising container A have reached the lower part of the horizontal axis feeding roll 25, and the seed supply device is used. Since the drive motor 81 of the horizontal axis feeding roll 25 of No. 7 is stopped, seeding spots are prevented and seeds are prevented from being unnecessarily supplied.

The seedling raising container detecting means 80 attaches the mounting plate portion 83 of the support member 82 to the transfer frame 60 of the transfer base 1, and the base portion of a pair of upper and lower link arms (parallel links) 85 on the rear plate 84 standing at the rear portion of the mounting plate portion 83. Is rotatably attached by a shaft 86, a vertically moving body 87 is rotatably attached to the tip of a link arm 85 by a shaft 88, and the vertically moving body 87 is provided with a detection protrusion 89 projecting downward. Since a sliding contact body 90 that slides and moves on the upper surface of the side plate of the seedling raising container A is provided on the front side, and a guide surface 91 that inclines backward is provided on the rear side of the detection protrusion 89, the rear wall of the seedling raising container A is provided. When the guide surface 91 of the detection protrusion 89 hits 79, the vertical moving body 87 is moved upward, and the vertical moving body 87 is moved upward to contact the sensing body 94 of the stop switch 93, the stop switch 93 is turned on, and the horizontal axis is extended. The drive motor 81 of the roll 25 is stopped.

Next, when the rear wall 79 of the seedling raising container A passes below the detection protrusion 89 of the vertical moving body 87, the vertical moving body 87 detaches from the sensing body 94 of the stop switch 93, immediately turns off the stop switch 93, and laterally. The drive motor 81 of the shaft feeding roll 25 is driven to restart the seed supply.
In this case, since the retracting surface 91A that inclines forward is provided on the front side of the detection protrusion 89, when the detection protrusion 89 passes through the front wall 79 of the nursery container A, it immediately descends to drive the drive motor 81. To start.
That is, the detection protrusion 89 is formed in a triangular shape downward when viewed from the side, and the lower apex becomes the detection protrusion 89 and makes point contact with the upper surface of the front and rear walls 79 of the seedling raising container A. Therefore, the front wall 79 of the seedling raising container A The stroke from the front surface to the rear surface of the rear wall 79 can be detected, and the detection accuracy is improved.

Further, since the guide surface 91 on the rear side of the detection protrusion 89 and the retracting surface 91A on the front side guide the detection protrusion 89 up and down, and the link arm (parallel link) 85 moves up and down in parallel with the detection protrusion 89. , The vertical movement of the detection protrusion 89 does not become a transport resistance of the seedling raising container A, and the occurrence of sowing trouble is prevented.
The sliding contact body 90 makes the guide surface 91 of the detection protrusion 89 stand by at a predetermined height by sliding contact moving on the upper surface of the side plate of the seedling raising container A, but the sliding contact body 90 is rotated to the vertical moving body 87 by the shaft 90A. Since the sliding contact height of the sliding contact body 90 can be changed by movably attaching the sliding contact body 90, the standby height of the guide surface 91 of the detection protrusion 89 can be adjusted.
Therefore, the seedling raising containers A having different heights can be immediately dealt with, and even if the seedling raising containers A having different heights are mixed, the detection protrusion 89 follows up and down.

Therefore, also in this respect, the transfer of the seedling raising container A is not clogged, and the occurrence of sowing trouble is prevented.
The seedling raising container detecting means 80 attaches the mounting plate portion 83 of the support member 82 to the transfer frame 60 of the transfer base 1, and axes the bases of the pair of upper and lower link arms 85 on the rear plate rear plate 84 that stands up at the rear of the mounting plate portion 83. It is rotatably attached by the shaft 86, the vertical moving body vertical moving body 87 is rotatably attached to the tip of the link arm 85 by the shaft shaft 88, and the vertical moving body 87 is provided with a detection protrusion 89 protruding downward to detect the seedling raising container. Since the means 80 is installed at a position where the vertical moving body 87 abuts on the rear wall 79 of one seedling raising container A from the position where the horizontal axis feeding roll 25 of the seed supply device 7 drops the seeds, the seed supply device 7 Even in the sowing device H having different front and rear lengths, the seeds can be prevented from falling onto the front and rear walls 79 of the seedling raising container A.

Further, in the manufacturing and assembling stage of the seeding apparatus H, the seedling raising container detecting means 80 is attached to the transfer table 1 in advance assuming the length of one seedling raising container A, and the set external dimensions of the seedling raising container A ( When a seedling raising container A different from the front-back length) is used, the seed supply device 7 is slid back and forth by the slide mechanism 61 according to the external dimensions of the seedling raising container A to be used. A seedling raising container detecting means 80 for detecting the front and rear walls 79 is provided, and a slide mechanism 61 is provided so that the position of the seed supply device 7 with respect to the seedling raising container detecting means 80 can be slid back and forth according to the length of the seedling raising container A. Together with this, it is possible to execute the rotation stop control of the horizontal axis feeding roll 25 of the seed supply device 7 with high accuracy.

That is, since the seed supply device 7 is provided so as to be slidable back and forth, the rear wall 79 on the rear side of the seedling raising container A is provided with the detection protrusion of the seedling raising container detecting means 80 in a state where the transfer means 2 of the transfer table 1 is stopped. In this state, the seed supply device 7 is moved back and forth in accordance with the front wall 79 of the seedling raising container A in accordance with 89, facilitating alignment.

In other words, with the detection protrusion 89 of the seedling raising container detecting means 80 aligned with the front surface of the rear wall 79 of the seedling raising container A, the front and rear 79s located at the tip of the length of one seedling raising container A are extended on the horizontal axis. Visually recognizing whether or not it is located below the roll 25 is viewed from diagonally behind when working alone, which makes it difficult to align the position, and the control accuracy of the stop control is reduced by that amount. In the present invention, in a state where the rear wall 79 of the seedling raising container A is aligned with the detection protrusion 89 of the seedling raising container detecting means 80, the position of the horizontal axis feeding roll 25 and the front and rear 79 of the seedling raising container A are directly beside the seed supply device 7. Since the seed supply device 7 can be moved back and forth to align the seeds, the alignment can be performed easily and accurately even by one person.

In another embodiment of the nursery container detecting means 80 of FIGS. 26 to 30, the bases of a pair of link arms 85 for raising and lowering the vertical moving body 87 (detection protrusion 89) are attached by shafts 86 arranged side by side in the front-rear direction. In addition, a shaft 88 for attaching the vertical moving body 87 is arranged side by side at the tip of the link arm 85, and the lower end of the link arm 85 is rotated in the front-rear direction to mount the vertical moving body 87 so as to be movable up and down. Since the stop switch 93 is configured to be adjustable in the vertical position, the vertical movement of the vertical moving body 87 (detection protrusion 89) can be smoothly performed, and the height position of the stop switch 93 can be adjusted to the height of the seedling raising container A. The detection accuracy of the seedling raising container detecting means 80 can be improved.

That is, since the link arm 85 moves the vertical moving body 87 (detection protrusion 89) up and down by the shafts 86 arranged side by side in the front-rear direction, a sufficient forward movement distance with respect to the upward movement distance of the detection protrusion 89 (vertical moving body 87) is sufficiently secured. This makes it possible to reduce the possibility that the vertical movement of the detection protrusion 89 becomes a resistance to the forward movement of the seedling raising container A, and the vertical movement of the detection protrusion 89 can be smoothed.

For the support member 82, the side plate 82A is raised on the mounting plate portion 83, the top plate top plate 82B is continuously provided on the upper portion of the side plate 82A, the inner side plate 82C is continuously provided on the inside of the top plate 82B, and the front and rear side plates 82C are connected to the inner side plate 82C. The bases of the pair of link arms 85 are rotatably attached in the front-rear direction by the shafts 86 arranged side by side at predetermined intervals in the front-rear direction, and the vertical moving body 87 is attached to the tip of the link arms 85 by the shaft 88. The support rigidity of the link arm 85 of 82 can be improved.

The vertical moving body 87 always stands by with the link arm 85 in a vertical state by its own weight, and does not require a stopper for holding the link arm 85 in a predetermined standby position. The detection accuracy of the container detecting means 80 can be improved.
The vertical moving body 87 is provided with a detection protrusion 89 projecting downward, and a sliding contact body 90 is provided behind the guide surface 91 of the detection protrusion 89 to slide and move the upper surface of the side plate of the seedling raising container A. The vertical moving body 87 in the standby position first moves upward when the front wall 79 of the seedling raising container A abuts and pushes against the arc-shaped guide portion 90B at the rear of the sliding contact body 90, and then the detection protrusion 89. When the guide surface 91 hits the front wall 79 or the rear wall 79 of the seedling raising container A, the vertical moving body 87 is moved upward.

Therefore, the vertical movement of the detection protrusion 89 can be smoothly and reliably performed.
A retracting surface 91A that inclines forward is provided on the front side of the detection protrusion 89, and when the detection protrusion 89 passes through the front wall 79 of the seedling raising container A, it immediately descends and starts driving the drive motor 81. The rotation of the horizontal axis feeding roll 25 of the feeding device 7 can be quickly restarted to avoid the non-sown state and prevent the occurrence of sowing spots.

A sensing body 94 of the stop switch 93 is provided above the contact portion 92 of the upper edge portion of the vertical moving body 87, and the stop switch 93 is movably attached to the side plate 82A of the support member 82 to match the height of the seedling raising container A. Since the height of the stop switch 93 can be adjusted up and down, the lower end of the detection protrusion 89 surely moves up and down with respect to the front and rear walls 79 of the seedling raising container A, and the seedling raising container A of the seedling raising container detecting means 80. The detection accuracy of the front and rear walls 79 of the above can be improved.

In this case, with the lower end of the detection protrusion 89 placed on the upper surface of the front and rear walls 79 of the seedling raising container A, the sensor 94 of the stop switch 93 is stopped so as to abut on the upper surface of the contact portion 92 of the vertical moving body 87. The height of the stop switch 93 may be easily adjusted by moving the switch 93 up and down to adjust the height.
Therefore, also in this respect, the lower end of the detection protrusion 89 can be reliably moved up and down with respect to the front and rear walls 79 of the seedling raising container A to improve the detection accuracy of the front and rear walls 79 of the seedling raising container A of the seedling raising container detecting means 80.

Further, the stop switch 93 may have different on and off timings of the stop switch 93 depending on the positional relationship between the main body of the stop switch 93 and the sensor 94, but by changing the height of the stop switch 93, the stop switch 93 may be turned on and off. It is possible to absorb the error due to the product variation of the stop switch 93.

The stop switch 93 is attached to the switch mounting plate stop switch 93A, and the screw shaft of the height adjustment dial height adjustment dial 93C is screwed into the protruding plate stop switch 93B of the stop switch 93A. The height of the stop switch 93 can be adjusted by moving the stop switch 93 up and down together with the switch mounting plate stop switch 93A, and the height of the sensor 94 of the stop switch 93 and the contact portion 92 of the vertical moving body 87 can be adjusted. Can be done accurately.

The height of the stop switch 93 and the sensor 94 shown in FIG. 25 can also be adjusted with respect to the contact portion 92 of the vertical moving body 87 by the elongated hole 93F for adjusting the height of the support member 82. ..

Further, the seedling raising container A sown by the sowing device H is transferred to the end of the transfer table 1 by the transfer means 2, and is taken out from the transfer table 1 by a manual operation or an extraction device (not shown), but there is a problem with the manual operation or the extraction device. When the sowing device H is provided with a full stop switch 95 and the sowing device H is completely stopped by the operation of the all stop switch 95, the transfer of the transfer means 2 and the horizontal axis feeding roll 25 of the seed supply device 7 are stopped. A time lag will occur between the rotation and the stop of the seedling raising container A, and sowing spots will occur in the seedling raising container A. However, in the present invention, the stop control of the drive motor 81 of the horizontal axis feeding roll 25 is controlled by the full stop switch 95. In the case of the stop signal, the so-called delay control for stopping the drive motor 81 of the horizontal axis feeding roll 25 is executed by delaying the inertial forward movement time after the drive stop of the transfer means 2 in advance, so that the sowing spots are prevented from occurring.

1 ... Transfer stand, 2 ... Transfer means, 3 ... Support leg, 4 ... Floor soil supply device, 5 ... Floor soil leveling brush, 6 ... Irrigation device, 7 ... Seed supply device, 8 ... Soil cover supply device, 10 ... Floor soil Supply frame, 11 ... Soil supply hopper, 12 ... Floor soil supply belt, 15 ... Irrigation frame, 16 ... Irrigation pipe, 20 ... Sowing frame, 21 ... Seed supply hopper, 22 ... Seed supply port, 23 ... Grain board, 25 ... Horizontal axis feeding roll, 26 ... Feeding recess, 27 ... Slit, 28 ... Scraping knife, 30 ... Roll outer surface, 31 ... Row sowing guide, 33 ... Rotating flat brush, 35 ... Seed derivative, 36 ... Elastic body , 38 ... split drop port, 39 ... guide body, 40 ... link arm, 42 ... vertical height switching adjustment mechanism, 43 ... support frame, 44 ... front rotation arm, 45 ... rear rotation arm, 46 ... axis, 47 ... Gear, 48 ... Connecting rod, 49 ... Operating lever, 50 ... Lever connecting rod, 51 ... Arm, 52 ... Engagement shaft, 53 ... Sowing engagement groove group, 54 ... Row seeding engagement groove group, 60 ... Transfer frame, 61 ... slide mechanism, 63 ... fertilizer application device, 64 ... long hole, 65 ... support plate, 66 ... guide pin, 67 ... mounting hole, 68 ... fixing bolt, 69 ... fixed shaft, 73 ... fertilizing frame, 74 ... Fertilizer supply hopper, 75 ... Fertilizer feeding roll, 76 ... Feeding recess, 77 ... Rotating brush, 78 ... Detachable tool, 79 ... Front and rear walls, 80 ... Seedling container detection means, 81 ... Drive motor, 81A ... Controller (control unit), 82 ... Support member, 82A ... Side plate, 82B ... Top plate, 82C ... Inner side plate, 83 ... Mounting plate, 84 ... Rear plate, 85 ... Link arm, 86 ... Shaft, 87 ... Vertical moving body, 88 ... Shaft, 89 ... Detection protrusion, 90 ... sliding contact body, 90A ... shaft, 91 ... guide surface, 91A ... retracted surface, 92 ... contact part, 93 ... stop switch, 93A ... switch mounting plate, 93B ... protruding plate, 93C ... height Adjustment dial, 93E ... Fixed screw, 93F ... Long hole, 94 ... Sensor, 95 ... All stop switch, A ... Seedling container, G ... Seed, K ... Space.

The invention of claim 1 is to supply seeds from above into the seedling raising container A at least at a position above the transfer table 1 having the transfer means 2 for horizontally transferring the seedling raising container A from the start end side to the end side. The seed supply device 7 is provided, and the horizontal axis feeding roll 25 of the seed supply device 7 is rotationally driven by a drive motor 81 different from the transfer means 2, and the drive motor 81 is set at a predetermined interval from the seed supply device 7. The seedling raising container detecting means 80 is configured to be able to immediately stop rotating by the position detection stop signal of the front wall 79 or the rear wall 79 of the seedling raising container A of the seedling raising container detecting means 80 provided on the upper side in the transfer direction of the seedling raising container A. Is a seeding device provided at intervals of one length of the seedling raising container A to be used on the upper side in the transfer direction of the seed supply device 7.
According to the second aspect of the present invention, the seedling raising container detecting means 80 is a sowing device configured by providing a detection protrusion 89 that moves up and down by a link arm 85 on a support member 82 provided on the transfer table 1.
A third aspect of the present invention, the detection protrusion 89 is provided in the vertical movement body 87 up and down by the link arm 85, above the sensing projections 89, was seeded device with face the sensing body 94 of the stop switch 93 It is a thing.
According to the fourth aspect of the present invention, the stop switch 93 is a seeding device configured so that the height of the stop switch 93 can be adjusted with respect to the transfer table 1.
According to the fifth aspect of the present invention, the stop switch 93 is a seeding device attached to a support member 82 provided on the transfer table 1 so as to be adjustable in height.
The invention of claim 6 is a seeding device in which the detection protrusion 89 is attached to a vertically moving body 87 that moves up and down by a link arm 85, and a guide surface 91 that inclines backward is provided on the rear side of the detection protrusion 89. Is.
According to the invention of claim 7, the detection protrusion 89 is attached to a vertically moving body 87 that moves up and down by a link arm 85, and the vertical moving body 87 on the front side of the detection protrusion 89 is provided with a retracting surface 91A that inclines forward. It is the one.
According to the eighth aspect of the present invention, the vertical moving body 87 is provided with a sliding contact body 90 that slides and moves the upper surface of the side plate of the seedling raising container A as a sowing device.
In the invention of claim 9, a total stop switch 95 for detecting the seeded seedling raising container A transferred by the transfer means 2 is provided at a predetermined position at the end of the transfer table 1, and the total stop switch 95 is provided as a seeded seedling raising container. When A is detected, the entire seeding apparatus is stopped, and the stop control of the drive motor 81 of the horizontal axis feeding roll 25 by the stop signal of the all stop switch 95 is transferred in advance after receiving the stop signal of the all stop switch 95. The seeding device has a control configuration in which the means 2 is stopped by delaying the inertial movement time after the drive is stopped.
In the invention of claim 10, the seedling raising container detecting means 80 is configured to have a detecting protrusion 89 which is moved up and down by a link arm 85, and the pair of link arms 85 support a base portion thereof provided on a transfer table 1. The seeding device is attached to the member 82 by the shafts 86 arranged side by side in the front and rear, and the tip of the link arm 85 is attached to the vertical moving body 87 by the shafts 88 arranged in the front and back.
In the invention of claim 11, the seed supply device 7 corresponds to the length of the seedling raising container A used for the sowing operation, and the seedling raising container detecting means 80 is at the detection position of the rear wall 79 of the seedling raising container A. The seeding device is configured so that the front wall 79 of the above can be slid back and forth with respect to the transfer table 1 so that the front wall 79 is located below the seed feeding position of the horizontal axis feeding roll 25 so that the front and rear position can be adjusted.
According to the invention of claim 12, the seed supply device 7 and the seedling raising container detecting means 80 are seeding devices configured to be slidable back and forth relative to the transfer table 1.

In the invention of claim 1, the drive motor 81 for driving the horizontal axis feeding roll 25 of the seed supply device 7 immediately stops rotating by the stop signal of the seedling raising container detecting means 80, so that the seedling raising container A is continuously transferred. Seeds can be prevented from falling on the front and rear walls 79, and seeding spots in the seedling raising container A can be prevented with high accuracy. As a result, wasteful seed supply can be avoided, energy-saving seeding work can be performed, and seedling raising can be performed. Since the container detecting means 80 is provided at intervals of one length of the seedling raising container A used on the upper side in the transfer direction of the seed supply device 7, it is easy to attach and adjust the seedling raising container detecting means 80. Therefore, the detection accuracy of the seedling raising container A can be improved.
In the invention of claim 2, in the seedling raising container detecting means 80, since the detection protrusion 89 moves up and down substantially vertically by the link arm 85, the control accuracy of stopping and restarting the seed supply can be improved, and the detection protrusion Since the 89 moves up and down smoothly, the presence of the detection protrusion 89 prevents the seedling raising container A from being transported.
In the invention of claim 3, above the sensing projections 89, stop because to face the sensing body 94 of the stop switch 93, the upper and lower detection protrusion 89 can be stopped and restarted seed supply.
In the invention of claim 4, since the stop switch 93 is configured so that the height of the stop switch 93 can be adjusted with respect to the transfer table 1, the detection accuracy of the seedling raising container A can be improved.
In the invention of claim 5, since the stop switch 93 is attached to the support member 82 provided on the transfer table 1 so as to be adjustable in height, the height of the stop switch 93 can be easily adjusted.
In the invention of claim 6, since the vertical moving body 87 on the rear side of the detection protrusion 89 is provided with a guide surface 91 that inclines backward, if any of the front and rear walls 79 of the seedling raising container A hits the guide surface 91. , The detection protrusion 89 and the vertical moving body 87 can be smoothly moved up, and the detection accuracy of the seedling raising container A can be improved.
In the invention of claim 7, since the vertical moving body 87 on the front side of the detection protrusion 89 is provided with the retracting surface 91A that is inclined forward, the detection protrusion 89 is the front wall 79 or the rear wall 79 of the seedling raising container A. Upon passing through either of them, the seeds can be immediately lowered to start driving the drive motor 81, and the seed supply can be resumed immediately, so that the detection accuracy of the seedling raising container A can be improved.
In the invention of claim 8, since the vertical moving body 87 on the front side of the detection protrusion 89 is provided with the sliding contact body 90 that slides and moves on the upper surface of the side plate of the seedling raising container A, the sliding contact body 90 is always the detection protrusion. The 89 can be made to stand by at a predetermined standby height, and the detection protrusion 89 can be smoothly moved up and down.
In the invention of claim 9, the stop control of the drive motor 81 of the horizontal axis feeding roll 25 is stopped by delaying the stop control of the drive motor 81 of the horizontal axis feeding roll 25 by the inertial movement time after the drive stop of the transfer means 2 in advance after receiving the stop signal of the all stop switch 95. Therefore, the drive motor 81 is instantly adopted by the stop signal of the seedling raising container detecting means 80 to improve the sowing spot avoidance accuracy, and the sowing spot is not generated even by the stop control of the entire sowing device by the all stop switch 95. In addition, the sowing work can be resumed.
That is, the stop switch 93 stops only the rotation of the horizontal axis feeding roll 25 while the seedling raising container A is being transferred, while the all stop switch 95 stops both the transfer of the seedling raising container A and the rotation of the horizontal axis feeding roll 25. Since the inertia acts on the stop of the transfer of the seedling raising container A, the rotation of the horizontal axis feeding roll 25 is stopped in consideration of the inertia when the transfer of the seedling raising container A is stopped, so that the seeding spots are not generated. Allows the entire seeding device H to be stopped.
In the invention of claim 10, the base of the pair of link arms 85 is attached to a support member 82 provided on the transfer table 1 by a shaft 86 arranged side by side in the front-rear direction, and the tip of the link arm 85 has a shaft 88 in the front-rear direction. Since the seedling raising container A is attached to the vertical moving body 87 by the vertically arranged shaft 88, when the seedling raising container A comes into contact with the detection protrusion 89, the detection protrusion 89 moves upward while advancing, and is above the vertical moving body 87. It is possible to prevent the movement from becoming a resistance to the forward movement of the seedling raising container A, smooth the upward movement of the vertical moving body 87, and improve the detection accuracy of the seedling raising container A.
In the invention of claim 11, the seed supply device 7 is made to correspond to the length of the seedling raising container A used for the sowing work, and the seedling raising container detecting means 80 is at the detection position of the rear wall 79 of the seedling raising container A. Since the front wall 79 of the above is slid back and forth with respect to the transfer table 1 so as to be located below the seed feeding position of the horizontal axis feeding roll 25, the front and rear position can be adjusted. The position accuracy of the shaft feeding roll 25 with respect to the seed feeding position can be improved, and the sowing spot avoidance accuracy can be improved.
In the invention of claim 12, since the seed supply device 7 and the seedling raising container detecting means 80 are configured to be slidable back and forth relative to the transfer table 1, the adjustment range can be widened (widened) and general purpose. The sex can be improved.

Claims (12)

At least, a seed supply device 7 for supplying seeds from above is provided in the seedling raising container A at a position above the transfer table 1 having the transfer means 2 for horizontally transferring the seedling raising container A from the start side to the end side. The horizontal axis feeding roll 25 of the seed supply device 7 is rotationally driven by a drive motor 81 different from the transfer means 2, and the drive motor 81 is superior to the seed supply device 7 in the transfer direction of the seedling raising container A at predetermined intervals. The seedling raising container detecting means 80 is configured to be able to immediately stop rotating by the position detection stop signal of the front wall 79 or the rear wall 79 of the seedling raising container A, and the seedling raising container detecting means 80 is the seed supply device 7. A seeding device provided at intervals of one length of the seedling raising container A to be used on the upper side in the transfer direction. In claim 1, the seedling raising container detecting means 80 is a sowing device configured by providing a support member 82 provided on the transfer table 1 with a detection protrusion 89 that moves up and down by a link arm 85. In claim 1 or 2, the detection protrusion 89 is provided on the vertical moving body 87 that moves up and down by the link arm 85, and the sensing body 94 of the stop switch 93 is provided on the moving path of the vertical moving body 87 above the vertical moving body 87. Seeding device facing you. In claim 3, the stop switch 93 is a seeding device configured so that the height of the stop switch 93 can be adjusted with respect to the transfer table 1. In claim 4, the stop switch 93 is a seeding device that is height-adjustably attached to a support member 82 provided on the transfer table 1. In claims 2 to 5, the detection protrusion 89 is attached to a vertically moving body 87 that moves up and down by a link arm 85, and the vertically moving body 87 on the rear side of the detection protrusion 89 is provided with a guide surface 91 that inclines backward. Seeding device. In any one of claims 1 to 6, the detection protrusion 89 is attached to the vertical moving body 87 that moves up and down by the link arm 85, and the vertical moving body 87 on the front side of the detection protrusion 89 has a retractable surface 91A that inclines forward. Seeding device provided with. The seeding apparatus according to any one of claims 1 to 6, wherein the vertical moving body 87 is provided with a sliding contact body 90 that slides and moves on the upper surface of the side plate of the seedling raising container A. In any one of claims 1 to 6, a total stop switch 95 for detecting the seeded seedling raising container A transferred by the transfer means 2 is provided at a predetermined position at the end of the transfer table 1, and the total stop switch 95 is provided. When the seedling raising container A is detected, the entire seeding device is stopped, and the stop control of the drive motor 81 of the horizontal axis feeding roll 25 by the stop signal of the full stop switch 95 is a stop signal of the full stop switch 95. A seeding device having a control configuration in which the transfer means 2 is stopped after being received by delaying the inertial movement time after the drive of the transfer means 2 is stopped. According to claims 2 to 9, the base of the pair of link arms 85 is attached to a support member 82 provided on the transfer table 1 by a shaft 86 arranged in parallel in the front-rear direction, and the tips of the link arms 85 are in parallel in the front-rear direction. A seeding device attached to the vertical moving body 87 by the provided shaft 88. In any of claims 1 to 7, in the seed supply device 7, the seedling raising container detecting means 80 detects the position of the rear wall 79 of the seedling raising container A in accordance with the length of the seedling raising container A used for the sowing operation. The sowing device is configured so that the front wall 79 of the seedling raising container A is slid back and forth with respect to the transfer table 1 so that the front wall 79 of the seedling raising container A is located below the seed feeding position of the horizontal axis feeding roll 25 so that the front and rear position can be adjusted. In claim 11, the seed supply device 7 and the seedling raising container detecting means 80 are seeding devices configured to be slidable back and forth relative to the transfer table 1.

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