JPH065U - Suction seeder - Google Patents

Abstract

(57) [Abstract] [Purpose] When adsorbing seeds, the suction box 2 can be swung left and right to surely adsorb the seeds to the suction sowing port 22a, but after adsorbing the seeds, the suction box 2 is moved to the sowing position. When the suction box 2 is moved, the swinging of the suction box 2 in the left-right direction is restricted and the suction box 2 is positioned at a predetermined position so that the seed can be sown accurately in the center of the pot P. [Structure] In a configuration in which seeds are adsorbed by suction to a suction seeding port 22a of a suction box 2 and moved to a seeding position above a tray for seeding, the suction box 2 is centered on an axis extending in the front-rear direction of the substrate. A neutral regulation mechanism 8 is provided, which supports the suction box 2 so as to be rotatable left and right, regulates the lateral rotation of the suction box 2 in the seeding position, and holds the neutral position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a suction type seeding machine, and more specifically, a suction type seeding machine which sucks seeds by suction into the suction seeding mouth of a suction box having a plurality of suction seeding mouths, and moves the seeds to a seeding position above the tray for seeding. Regarding the machine.

[0002]

[Prior art]

 Conventionally, this seed suction seeding machine is provided with a substrate having a placement surface on which a tray can be placed, a suction box having a suction chamber and a plurality of suction seeding openings opening to the suction chamber, A support member that rises upward is provided on the base body, and the suction box can be moved up and down with respect to the base body through a swinging member having a support arm on the support member so as to be rotatable, and a suction machine is provided. The suction chamber is connected to the suction chamber via a suction hose, and during the sowing operation, the suction box is moved upward with respect to the substrate so that the tray is placed on the mounting surface of the substrate. On the other hand, the suction box is turned so that the suction seeding port is located at the suction position where the suction seeding port is directed upward, and in this state, the seeds dropped on the suction seeding surface of the suction box are sucked by the suction machine. Adsorption to the suction seeding mouth by action After that, the suction box is inverted so that the suction seeding port is directed downwards, the suction box is moved to the seeding position above the tray, and the suction chamber is opened to the atmosphere. The seeds adsorbed to the suction seeding mouth are sowed in each tray of the tray.

[0003]

[Problems to be solved by the device]

 By the way, it is preferable that the support arm that supports the suction box is supported by the swinging member so as to be rotatable in the left-right direction about an axis in the front-rear direction of the base body. When the suction seeding mouth is turned to the suction position where it is turned upward to adsorb the seeds, the suction box can be oscillated in the left-right direction with respect to the oscillating member via the support arm. The seeds dropped on the suction sowing surface of the suction box can be surely adsorbed to the suction sowing mouth.

However, as described above, when the support arm that supports the suction box is supported rotatably in the left and right directions with respect to the swing member, the seed is adsorbed to the suction seeding mouth. Then, when the suction box is moved to the seeding position above the tray with the suction box being inverted so that the suction seeding port is in the seeding position in which the suction seeding point is directed downward, when the suction box is swung. There is a problem that the seeding accuracy is deteriorated because the suction seeding opening of the suction box is displaced with respect to the center of the pot and the seeding work cannot be performed accurately in the center position of the pot because the suction seeding opening of the suction box shifts to the left and right with respect to the member was there.

The object of the present invention is to turn the suction box to the suction position where the suction seeding port faces upward to adsorb seeds, so that the suction box is moved laterally with respect to the swing member via the support arm. It is possible to swing, and while the seeds dropped on the suction sowing surface of the suction box can be surely adsorbed to the suction sowing mouth, after sucking the seeds at the suction sowing mouth of the suction box, When moving the box to the seeding position above the tray, the suction box is regulated from swinging in the left-right direction and positioned at a predetermined position, and the seed adsorbed at the suction seeding port is accurately centered on the pot. An object of the present invention is to provide a suction-type seeder that can be seeded and can improve seeding accuracy.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention has a base 1 having a mounting surface 10 on which a tray T is mounted, a suction chamber 21 and a suction box having a plurality of suction seeding ports 22 a opened in the suction chamber 21. 2, a support member 3 standing upright from the base body 1, swingably supported by the support member 3, the suction box 2 can be moved up and down with respect to the base body 1, and the suction seeding port 22a faces downward. Rocking member 5 having a supporting arm 4 that is turnably supported at a seeding position that is directed to a suction position and an adsorption position that is directed to an upward direction, a suction device 6, and air that communicates between the suction device 6 and the suction chamber 21. In the suction type seeder having the passage A, the support arm 4 is supported by the swinging member 5 so as to be rotatable in the left-right direction about the axis of the base 1 in the front-rear direction, and the support arm is also supported. 4 between the rocking member 5 and To restrict the rotation of the horizontal direction in sowing position of pull a box 2, we were provided with neutral regulating mechanism 8 for holding the neutral position.

[0007]

[Action]

 The support arm 4 that supports the suction box 2 is supported by the swing member 5 so as to be rotatable in the left-right direction about the longitudinal axis of the base body 1. When the seed sowing mouth 22a is turned to the upward sucking position to suck the seeds, the suction box 2 is swung in the left-right direction with respect to the swinging member 5 via the support arm 4 to thereby suck the suction. The seeds dropped in the box 2 can be surely adsorbed to the suction seeding port 22a.

Further, as described above, although the support arm 4 is rotatably supported in the left-right direction with respect to the swing member 5, the support arm 4 is provided between the support arm 4 and the swing member 5. Since a neutral regulation mechanism 8 that regulates the lateral movement of the suction box 2 at the seeding position and holds the suction box 2 at the neutral position is interposed, after the seeds are adsorbed to the suction seeding port 22a, When the suction box 2 is moved to the seeding position above the tray T in the state where the suction box 2 is inverted so that the suction seeding port 22a is located at the seeding position in which the suction seeding port 22a is directed downward, the neutral regulation mechanism 8 The rotation of the suction box 2 in the lateral direction at the seeding position is restricted by this, and the suction box 2 is held at the neutral position. Therefore, the suction seeding port 22a of the suction box 2 is provided in the tray T. It may cause misalignment with the center of the pot Without so doing, the suction seeding port 22a is accurately positioned with respect to the center of the pot, and the seeds adsorbed to the suction seeding port 22a can be seeded accurately in the center of the pot, so that the seeding accuracy is improved. It can be improved.

[0009]

【Example】

 An example of the suction type seeding machine shown in the drawings will be schematically described. A base 1 having a mounting surface 10 on which a tray T can be mounted, a suction chamber 21 and openings to the suction chamber 21. A suction box 2 provided with a suction seeding plate 22 having a plurality of suction seeding ports 22a, a support member 3 which rises upward from the rear side of the base 1, and a support member 3 swingably supported by the support member 3 The box 2 can be moved up and down with respect to the substrate 1, and has a support arm 4 that supports the box 2 so that it can be turned between a seeding position in which the suction seeding port 22a is directed downward and a suction position in which it is directed upward. It includes a moving member 5, a suction device 6, and an air passage A that connects the suction device 6 and the suction chamber 21.

As shown in FIGS. 6 to 8, the base body 1 has a mounting surface 10 on which a tray T having a plurality of pot portions P for growing seedlings in a row arranged vertically and horizontally can be mounted. A box body is provided, and legs 17 for setting the mounting surface 10 to a predetermined ground height, that is, a height suitable for work are fixedly or foldably provided on the front, rear, left, and right sides of the base body 1. On the left and right sides of the base body 1, horizontally long tray mounting bases 18 and 19 having substantially the same height of the mounting surface 10 are fixedly or foldable. Further, on the upper surface of the base body 1, on the rear side of the mounting surface 10, there is provided a tray positioning body 12 capable of positioning and mounting the tray T at predetermined positions in front, rear, left and right with respect to the mounting surface 10. At the same time, the rear wall 1a of the base body 1 is provided with a positioning member 13 for receiving a guide body 7 to be described later provided on the rear end side of the suction box 2 and guiding and positioning the suction box 2 at a predetermined position. Further, on the upper surface of the base body 1 and on the left and right sides of the placing surface 10 outside the right and left side walls 20b, 20b of the suction box 2, left and right receiving bodies for receiving grips 28, 28 described later are received. 11 and 11 are provided. The receiving bodies 11 and 11 are mainly made of a material having elasticity such as rubber, and when the suction box 2 is turned to a seeding position and moved down, the grips provided on the left and right side walls 20b and 20b of the suction box 2 are held. 28, 28 can be received, and the height of the suction box 2 with respect to the mounting surface 10, that is, the height with respect to the tray T can be increased by the reception of the grips 28, 28 by the receiving bodies 11, 11. It can be positioned.

Further, the positioning member 13 shown in the drawing is made of a metal plate having a guide groove 13a that opens upward, and the upper opening of the guide groove 13a is expanded upward. The lower part of the guide has a straight shape, and the bottom of the guide groove 13a is positioned at the front-back position corresponding to the mounting position of the tray T positioned by the tray positioning body 12. Therefore, when the guide body 7 engaged with the guide groove 13a of the positioning member 13 and guided to the bottom side stops at or near the bottom portion, that is, the grip bodies 28, 28 receive the left and right bearings. When received by the bodies 11 and 11, the front and rear positions of the suction box 2 are regulated with respect to the mounting position of the tray T mounted on the mounting surface 10, so that the front and rear positioning can be performed. ing.

Further, the base body 1 has a suction device 6 such as a blower inside the rear wall 1a, and both side walls 1b, 1b of the base body 1 are provided with an exhaust port 14, and the front wall 1a. An operation switch 16 for turning the suction device 6 on and off is provided at c.

Further, as shown in FIG. 7, the supporting member 3 is composed of a substantially L-shaped hollow pipe that rises rearward and upward from the rear wall 1 a of the base body 1. The base portion of the supporting member 3 is The base 1 is attached to the rear wall 1a, and the tip of the base portion is made to penetrate into the base 1 through a through hole formed in the rear wall 1a so as to communicate with the suction device 6. Further, as shown in FIGS. 1 to 3, a fixing member 31 is inserted and fixed on the upper end side of the supporting member 3, and the fixing member 31 is provided on both side walls 31a and 31a facing each other. And a connecting wall 31b provided on the lower end sides of the both side walls 31a are formed in a substantially U shape, and the connecting wall 31b is inserted into the upper end side of the supporting member 3 and fixed, and at the same time, the base body is attached to the both side walls 31a. 1 is inserted through the pivot shaft 32 extending in the left-right direction, and both end portions of the pivot shaft 32 are inserted through the rocking member 5, so that the rocking member 5 is fixed to the fixing member 31, that is, the supporting member 3. Further, it is swingably supported about the pivot shaft 32.

Further, the swinging member 5 supported by the supporting member 3 has a substantially U-shape whose front side is opened by both side walls 51a and 51a facing each other and a connecting wall 51b connecting the both side walls 51a. By inserting both side end portions of the pivot shaft 32 inserted into the fixing member 31 between the both side walls 51a, the swing member 5 is centered on the support member 3 about the pivot shaft 32. And a connecting portion 52 having a hollow passage 52a is provided on the inner upper side of the swinging member 5 so as to project from the connecting portion 52 and the continuous wall 31b of the fixing member 31. The upper end side of the support member 3 to be connected is connected by a flexible hose 53 such as a bellows hose.

Further, the support arm 4 is attached to the upper end side of the swinging member 5, and the support arm 4 is composed of a planar U-shaped bifurcated portion 42 having a passage 41 therein. At each free end of the crotch portion 42, cylindrical shafts 43, 43 having a hollow portion 43a opening to the suction chamber 21 of the suction box 2 are projectingly provided, and the cylindrical shafts 43, 43 are provided with the suction box 2a. Is rotatably supported, and the passage 41 in the bifurcated portion 42 is communicated with the connecting portion 52 formed inside the swing member 5.

Thus, the hollow portion of the support member 3, the flexible hose 53, the hollow passage 52a of the connecting portion 52, the passage 40a of the bifurcated portion 42a, and the hollow portion 43a of the tubular shafts 43, 43. Thus, an air passage A from the suction device 6 to the suction chamber 21 is formed.

Further, as shown in FIG. 7, the suction box 2 includes a box-shaped main body 20 opened to the bottom side, and a suction seeding plate 22 detachably attached to the open side of the box-shaped main body 20, The suction chamber 21 is formed inside the box-shaped main body 20 and the suction seeding plate 22, and the suction seeding plate 22 is provided with a plurality of suction seeding ports 22a that are open to the suction chamber 21. ing. The center of the suction seeding plate 22 is recessed, and a seed tank 23, which extends substantially the entire width of the box-shaped main body 20 in the width direction, is connected to the rear side of the suction seeding plate 22 via an inclined surface portion 22b. This seed tank 23 comprises a front wall 23a, both side walls 23b and 23b, a rear wall 23c, a top wall 23d and a bottom wall 23e, and only the upper part of the front wall 23a is opened toward the suction seeding plate 22 side. The opening 23f is configured to be the upper position at the seeding position shown in FIG. The suction box 2 is rotatably supported by the cylindrical shafts 43, 43 of the swinging part 40 on both side walls 20b, 20b, and is located on the side of the seed box 23 on which the suction box 2 is mounted. The rear wall 20c is provided with the guide body 7 projecting rearward and also serving as a handle.

The guide body 7 can be used as a handle for performing the turning operation of the suction box 2, and is rotated by rotating the suction box 2 to a seeding position where the suction seeding port 22a is directed downward. When it is moved, it engages with the inner surface of the guide groove 13a of the positioning member 13 and is guided to the bottom side, and by the engagement of the guide body 7 with the guide groove 13a, the front and rear position of the suction box 2 is The tray T is positioned back and forth with respect to the mounting position.

The guide body 7 shown in the drawing is composed of a rod-shaped member having a pair of mounting plates 71 mounted near both sides in the length direction, and is made of synthetic resin on both side portions fitted into the guide groove 13a. A protective cylinder 72 is attached. Further, although the positioning member 13 is provided on the rear wall 1a of the base body 1 and the guide body 7 is provided on the rear wall 20c of the suction box 2, the positioning member 13 is provided on the front side of the base body 1 and the guide body 6 is provided. It may be provided on the front wall of the suction box 2 or on one of the left and right sides. Further, when the guide body 7 having the positioning member 13 provided on the front side of the base body 1 is provided on the front wall of the suction box 2, the guide body 6 is provided in the direction of the arrow shown by the phantom line in FIG. When the suction seeding plate 22 is rotated to the suction position in which the suction seeding plate 22 is directed upward, the guide body 7 interferes with the bifurcated portion 42 to prevent the suction box 2 from turning above the seeding position. I prefer to By doing so, it is possible to maintain the suction box 2 at the suction position by utilizing the interference with the bifurcated portion 42 of the guide body 7. By maintaining the suction box 2 at the suction position, the suction box 2 can be maintained. It is possible to prevent the seeds in the seed tank 23 from falling off when the seeds in the seed tank 23 flow down from the opening 23f of the front wall 23a to the upper surface of the suction seeding plate 22 via the inclined surface portion 22b.

Further, on the left and right side walls 20b, 20b of the box-shaped body 20, as shown in FIGS. 7 and 8, a pair of the grips 28, 28 are provided in the opposite direction to the upper wall 20a. It is attached so as to project downward from the suction seeding plate 22 at the seeding position, and the vertical height of the grips 28, 28, that is, the protruding height from the suction seeding plate 22, can be adjusted. Is installed as. The grips 28, 28 are adapted to be engaged with and received by the left and right receivers 11, 1 provided on the left and right sides of the mounting surface 10 on the upper surface of the base body 1. By the reception of the grips 28, 28 by the left and right receivers 11, 11, the height position of the suction box 2 with respect to the mounting surface 10 is positioned.

In the figure, 15 and 15 are a pair of grips provided on the upper wall 20 a of the suction box 2 for swinging the suction box 2 up and down. A reinforcing plate 29a having a U-shaped cross section, which is fixed to the upper wall 20a and abuts on the suction seeding plate 22 to reinforce the upper wall 20a and the suction seeding plate 22, and an intermediate portion in the longitudinal direction of the reinforcing plate 29a. L-shaped reinforcing plates 29b and 29b that are fixed to the inner surface of the upper wall and extend in a direction orthogonal to the reinforcing plate 29a. The box-shaped main body 20 is prevented from being deformed so that the seed can be favorably adsorbed to the suction seeding port 22a of the suction seeding plate 22.

Reference numeral 33 denotes a spring interposed between the support member 3 and the lower end of the swinging member 5, which is a balance spring for making the vertical swing of the suction box 2 lighter in operation. Reference numeral 34 denotes a fall prevention member made of a pipe material or the like provided on the lower portion of the support member 3.

Thus, a cylindrical shaft portion 44 extending forward and rearward of the base 1 is integrally provided at the rear portion of the bifurcated portion 42 of the support arm 4 in the widthwise middle portion, and the cylindrical shaft portion 44 is formed as described above. The suction box 2 supported by the bifurcated portion 42 is rotatably inserted and supported by the connecting portion 52 provided inside the swinging member 5 so that the suction box 2 supported by the bifurcated portion 42 is centered on the cylindrical shaft portion 44. And the rotation of the suction box 2 at the seeding position between the support arm 4 and the swinging member 5 is restricted so that the suction box 2 can be moved to the neutral position. The neutral regulation mechanism 8 for holding is provided.

As is apparent from FIGS. 1 and 2, the neutralization regulating mechanism 8 is integrally provided above both side walls 31 a of the fixing member 31 fixed to the upper side of the supporting member 3. A pair of left and right cam bodies 81, 81 are supported inside the swing member 5 so as to be capable of swinging back and forth on the upper side of the cam body 81 via a support shaft 82. When swinging to the front lower side with respect to 3, that is, when moving the suction box 2 to the seeding position above the tray T, the swinging body 83 that abuts on each of the cam bodies 81 and is swung to follow the front lower side. A pair of left and right actuating rods 84, 84 fixed to the upper side of the rocking body 83, and a downward projection near the cylindrical shaft portion 44 on the rear side of the forked portion 42 of the support arm 4. Is installed, and is brought into contact with each of the operating rods 84 at the seeding position of the suction box 2. The position correction body 85 that regulates the rotation in the left-right direction and corrects and holds the suction box 2 at the neutral position, and is interposed between the position correction body 85 and the swing body 83, and each of the operating rods is provided. And a spring 86 that constantly urges 84 toward the upper rear side of the swinging member 5 which is separated from the position correcting body 85.

More specifically, the oscillating body 83 has a substantially U-shape whose rear side is opened by both side walls 83a, 83a facing each other and a connecting wall 83b connecting the front side of each side wall 83a. The swing shaft is formed by inserting the support shaft 82 between the side walls 83a, and inserting and supporting both ends of the support shaft 82 through the side walls 51a of the swing member 5. 5, the swing body 83 is swingably supported in the front-rear direction about the support shaft 82, and the lower side of each side wall 83a of the swing body 83 is always attached to the cam surface of the cam body 81. The contact portion 83c to be contacted is integrally formed, and the contact portion 83c is moved along the cam surface of the cam body 81 when the swing member 5 swings to the lower front side with respect to the support member 3. By making the swing body 83 move forward, While swinging forward and downward around the support shaft 82 following the swinging member 5, the operating rods 84 are forwarded near the side walls 83a on the upper side of the swinging body 83. It is made to project toward.

Then, the suction box 2 is moved from the suction position for sucking seeds to the suction seeding port 22a to the seeding position above the tray T by swinging the swinging member 5 with respect to the support member 3. In a predetermined range on the way, as is apparent from FIG. 1, the operating rods 84 of the swinging body 83 that follow the swinging member 5 do not project to the position correcting body 85 side, and the operating rods 84 do not protrude. By holding 84 at the retracted position rearward from the position correcting body 85 by the urging force of the spring 86, the position correcting body 85 is held in a free state, and the position correcting body 85 is moved in the lateral direction of the base body. Of the suction box 2, that is, the support arm 4 supporting the suction box 2 can be swung in the left-right direction around the cylindrical shaft portion 44 with respect to the swing member 5. Seed in suction seeding port 22a When the child is dropped and the seed is adsorbed to the suction seeding port 22a, the suction box 2 is swung in the left-right direction with respect to the swinging member 5 via the support arm 4, whereby the suction This ensures that the seed can be adsorbed to the sowing port 22a.

Further, as is apparent from FIGS. 1 and 2, the position correcting body 85 is formed of a plate-like member, and constricted portions 85a and 85a are formed on the upper sides of both left and right side surfaces thereof. The constricted portions 85a move the suction box 2 from the suction position where the suction seeds 22a adsorb the seeds to the seeding position above the tray T by swinging the swinging member 5 with respect to the support member 3. In the middle of the operation, the operating rods 84 of the rocking body 83 that follow the rocking member 5 are formed so as to be opposed to each other. Further, on the left and right side surfaces on the lower side of each constricted portion 85a, regulating surfaces 85b and 85b which contact the respective operating rods 84 and regulate the rotation of the position correcting body 85 in the lateral direction of the base body are formed. Therefore, when the suction box 2 is moved to the seeding position above the tray T, the restriction surfaces 85b follow the swinging member 5 as shown in FIGS. 3 and 5. The operating rods 84 of the oscillating body 83 are formed so as to come into contact with the regulating surfaces 85b, and the rotation of the position correcting body 85 in the lateral direction of the base body is regulated with respect to the operating rods 84. That is, the swinging of the support arm 4 supporting the suction box 2 in the left-right direction around the cylindrical shaft portion 44 with respect to the swinging member 5 is restricted so that the suction box 2 can be moved by the suction seeding port 22a. Accurately positioned with respect to the center of the pot P provided on the tray T Held in a neutral position as, than it is to accurately seeded the adsorbed to suction sowing port 22a seeds at the center of the pot P.

Further, a continuous inclined surface 85c is formed between the constricted portion 85a and the restriction surface 85b of the position correction body 85, and the suction box 2 is located below the swing member 5. When the suction box 2 is tilted in the lateral direction of the base body when the suction box 2 is moved to the seeding position due to the swinging of the rocking rod, as shown in FIG. By guiding it to the regulation surface 85b while abutting it, the inclination of the suction box 2 can be corrected and the suction box 2 can be accurately positioned at the neutral position.

Next, the operation of the suction seeder constructed as above will be described. First, when performing seeding work, the legs 17 are erected, the tray mounts 18 and 19 are unfolded and held horizontally, and a plurality of unseeded trays T are provided on one of the tray mounts 18 and 19. This is done by stacking, and in this state, the operation switch 16 is turned on to drive the suction machine 6.

Then, as shown by the phantom line in FIG. 7, the suction box 2 is moved upward with respect to the base body 1 by swinging of the swinging member 5 with respect to the support member 3, and in this state also Then, one of the unseeded trays T prepared by stacking on the tray mounting table 18 is taken out and placed on the mounting surface 10 of the substrate 1 at a predetermined position via the tray positioning body 11.

Further, the suction box 2 is rotated in the direction of the arrow shown by the phantom line in FIG. 7 at the upper swing position so that the suction seeding plate 22 is located on the upper surface side. Then, since the opening 23f of the seed tank 23 moves to the lower position, the seed in the seed tank 23 flows down from the opening 23f to the upper surface of the suction seeding plate 22 through the inclined surface portion 22b, and the suction seeding is performed. The suction seeds 22a of the plate 22 are sucked by the suction device 6, whereby the seeds located near the suction seeds 22a are adsorbed to the suction seeds 22a, respectively.

Further, after the seed adsorption is completed as described above, the suction box 2 is positioned at the seeding position where the suction seeding plate 22 is directed downward as shown by the solid line in FIG. Invert. By reversing the suction box 2, only the seeds sucked at the suction seeding openings 22a remain on the suction seeding plate 22, and the seeds not sucked at the suction seeding openings 22a are opened through the inclined surface portion 22b. It is again stored in the seed tank 23 from the part 23f. Then, when the seed adsorption work is completed as described above and the suction box 2 is positioned above the base body 1, as shown in FIG. The rod 84 is retracted to the upper rear side of the swing member 5 separated from the position correction body 85, the position correction body 85 is held in a free state, and the position correction body 85 swings in the lateral direction of the base body. Is allowed and the swinging of the support arm 4 supporting the suction box 2 in the left-right direction with the cylindrical shaft portion 44 as the center with respect to the swinging member 5 is possible. The seeds dropped in the suction box 2 can be surely adsorbed to the suction seeding port 22a by swinging the left and right with respect to the swinging member 5 via the support arm 4. .

After that, by swinging the suction box 2 downward with respect to the supporting member 3 of the swinging member 5, the suction box 2 is moved to the seeding position above the tray T, and the suction machine 6 is moved. By releasing the negative pressure state in the suction chamber 21 as described above, the seeds adsorbed to the suction seeding ports 22a of the suction seeding plate 22 are seeded in the pots P of the tray T, respectively. Thus, as described above, when the suction box 2 is moved to the seeding position above the tray while swinging the swing member 5 downward with respect to the support member 3, the swing body 83 is moved to the seeding position above the tray. The provided contact portion 83c is guided along the cam surface of the cam body 81, and the swing body 83 swings forward and downward around the support shaft 82 while following the swing member 5 while resisting the spring 86. As a result, the operating rods 84 provided on the rocking body 83 are projected toward the position correcting body 85 side. Then, as the swinging member 5 swings downward with respect to the support member 3, the operating rods 84 are guided from the constricted portions 85a of the position correcting body 85 to the inclined surface 85c and the restricting surface 85b. However, even when the swing box 5 is tilted in the left-right direction of the base body when the swing member 5 swings downward, that is, when the suction box 2 moves above the tray T. As shown in FIG. 4, the operating rods 84 are brought into contact with the constricted portions 85a and the inclined surfaces 85c, and finally, as shown in FIG. Since the suction box 2 is guided to the regulation surface 85b, the inclination of the suction box 2 is corrected, and the suction box 2 is accurately positioned at the neutral position. The seeding port 22a is accurately aligned with the center of the pot P provided on the tray T. The seeds that are positioned at the position S and adsorbed to the suction seeding port 22a can be accurately sown in the center of the pot P.

In the embodiment shown in FIG. 1, a plurality of colored fluorescent lamps 30 are arranged inside the suction chamber 21 of the suction box 2, and the inner surface of the suction seeding plate 22 is covered by the fluorescent lamps 30. By irradiating the side, it is possible to confirm whether or not seeds have been adsorbed to the suction seeding port 22a of the suction seeding plate 22. At this time, when the seeds are not adsorbed to the suction seeding openings 22a, the light of the fluorescent lamp 30 is transmitted to the outside, so that it can be surely confirmed that the seeds are not adsorbed. It is difficult to confirm the adsorption to each suction seeding port 22a. For example, it is possible to confirm the adsorption to the suction seeding port 22a even for small seeds such as Bekonia, and the seeding accuracy can be improved.

9 to 11 show another embodiment of the suction box 2. This suction box 2 has a bottom wall 22b having a suction seeding port 22a and a front wall 22c and a rear wall 22d around the bottom wall 22b. , A box-shaped suction seeding plate 22 provided with side walls 22e, 22e is formed, and a lower portion of the front wall 23a located on the side of the bottom wall 22b is opened on the inner surface of the rear wall 22d of the suction seeding plate 22. The box-shaped seed tank 23 is fitted and fixed by fixing means such as rivets or spot welding, and the bent pieces 22f and 22f project inwardly at the upper ends of the side walls 22e and 22e adjacent to the seed tank 23. While the seed tank 23 is integrally fixed, the suction seeding body 22 is detachably fixed to the open surface side of the box-shaped main body 20 having an open upper surface by a pair of mounting fixing plates 24 and 25.

As shown in FIGS. 9 and 10, one of the mounting / fixing plates 24 and 25 has a holding part 24c at the tip of a base part 24b having an elongated hole 24a. The mounting and fixing plate 24 is fixed to the extension portion provided on the upper rear wall of the box body 20 by the adjusting screw 24d while the upper surface of the seed tank 23 is pressed and held by the holding portion 24c. . The other mounting / fixing plate 25 is provided with a locking portion 25c at the tip of a base portion 25b having elongated holes 25a, 25a, and the mounting / fixing plate 25 is attached to the suction seeding plate 22 at the locking portion 25c. The front wall 22c is fixed to the both ends of the front wall of the box body 20 with adjusting screws 25d and 25d in a state where the upper end of the front wall 22c is locked. In this case, the ends of the bent pieces 22f, 22f on the side opposite to the seed tank 23 are cut into an inclined shape, and the both ends of the locking portion 25c of the mounting fixing plate 25 are inserted into the lower surface of the inclined end. The open surface of the suction seeding plate 22 is enclosed inward by the locking portion 25c and the bent pieces 22f, 22f, and when the suction box 2 is turned, seeds fall from the suction seeding plate 22 to the outside. I try to prevent it. Further, since the mounting and fixing plates 24, 25 are fixed to the box-shaped main body 20 by the long holes 24a, 25a, 25a and the adjusting screws 24d, 25d, 25d so that the height can be adjusted, the suction seeding plate 22 is different. When replacing the seeds with the suction seeding plate 22, the suction seeding plate 22 of various sizes can be used.

A caulking agent layer 26 is provided at the joint between the entire inner surface of the seed tank 23 and the suction seeding plate 22, and a caulking agent layer 26 is provided to buffer the impact of a seed collision. In doing so, the seeds are prevented from being damaged by directly hitting the wall surface of the seed tank 23 or the joint between the tank 23 and the suction seeding plate 22.

Further, inside the suction box 2, a vibration exciter 27 for vibrating the bottom wall 22b of the suction seeding plate 22 provided with the suction seeding port 22a is provided, and the vibrating machine 27 causes the bottom surface 22b to vibrate. By vibrating 22b, it is possible to favorably perform the suction operation of sucking the seeds to the suction seeding port 22a at the suction position and the seeding work of dropping the seeds from the suction seeding port 22a at the seeding position. In this case, the vibration exciter 27 is provided on the inner surface side of the box-shaped main body 20 via a substantially U-shaped vibrating plate 27a that holds the vibrating device 27 at the center, and the vibrating plate 27a is provided with the bottom wall. In order to effectively vibrate the bottom wall 22b via the abutting body 28, a plurality of abutting bodies 28 made of hard urethane rubber are provided to abut the 22b. In addition to the above, the vibrating plate 27a is provided with a mounting piece 27c having a plurality of mounting holes b for mounting position adjustment so that the mounting position of the vibrating plate 27a on the box-shaped body 20 can be changed. When the vibrating plate 28a is attached to the box main body 20 by screwing, it is possible to avoid closing the suction seeding port 24a by the abutting body 28.

9 to 11, reference numeral 29 is a sealing material interposed between the box-shaped main body 20 and the suction seeding plate 24 in order to maintain the airtightness of the suction chamber 21.

As a means for positioning the tray T on the mounting surface 10 described above, one tray positioning body 12 provided on the rear side of the mounting surface 10 as shown in FIG. As shown in FIG. 12, the flat plate guide 12a for positioning the tray T rearward and the L-shaped guide 12b for positioning the corner portion of the rear end of the tray T are combined, and these flat plates The guide 12a and the L-shaped guide 12b may be provided on the rear side of the mounting surface 10 so that their height positions can be adjusted. According to such a position means, after the rear surface of the tray T is brought into contact with the flat plate guide 12a, the rear end of the tray T is brought into contact with the L-shaped guide 12b along the flat plate guide 12a. By moving the tray T to the position, the tray T can be easily guided and positioned to a predetermined position on the mounting surface 10, and the height of the flat plate guide 12a and the L-shaped guide 12b can be increased according to the size of various trays T. The position can be adjusted.

[0041]

[Effect of device]

 As described above, the present invention provides a substrate 1 having a mounting surface 10 on which a tray T is placed, a suction chamber 21 and a suction box 2 having a plurality of suction seeding openings 22a opened in the suction chamber 21, and the substrate. 1. A support member 3 rising from 1 and a seeding position at which the suction box 2 can be moved up and down with respect to the base 1 while being swingably supported by the support member 3, and the suction seeding port 22a is directed downward. A swinging member 5 having a supporting arm 4 that supports the suction position that is directed upward, and a suction device 6; and an air passage A that connects the suction device 6 and the suction chamber 21. In the suction type seeder, the support arm 4 is supported by the swing member 5 so as to be rotatable in the left-right direction about the longitudinal axis of the base body 1, and the support arm 4 and the swing member are supported. Seeding of the suction box 2 between 5 and Since the neutral regulation mechanism 8 that regulates the left-right rotation of the storage device and holds it in the neutral position is provided, when the suction box 2 is turned to the suction position where the suction seeding port 22a faces upward, and the seed is sucked. By swinging the suction box 2 while swinging the suction box 2 in the left-right direction with respect to the swing member 5 via the support arm 4, the seeds dropped in the suction box 2 are sucked into the suction seeding port. 22a can be surely adsorbed. Further, as described above, although the support arm 4 is supported so as to be rotatable in the left-right direction with respect to the swing member 5, the suction arm is provided between the support arm 4 and the swing member 5. Since the neutral regulation mechanism 8 that regulates the lateral rotation of the box 2 at the sowing position and holds the box 2 at the neutral position is interposed, after the seed is adsorbed to the suction seeding port 22a, the suction seeding is performed. When the suction box 2 is moved to the seeding position above the tray T in a state where the suction box 2 is inverted so that the mouth 22a is directed downward, the suction is performed by the neutralization regulation mechanism 8. The horizontal rotation of the box 2 at the seeding position can be restricted, and the suction box 2 can be held at the neutral position. Therefore, the suction seeding port 22a of the suction box 2 with respect to the center of the pot provided on the tray T. Without causing positional displacement, Since the suction sowing port 22a can be accurately positioned with respect to the center of the pot, and the seeds adsorbed at the suction sowing port 22a can be accurately seeded at the center of the pot, so that the sowing accuracy can be improved. is there.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a main part of a suction box according to the present invention.

FIG. 2 is a front view of the main part.

FIG. 3 is a view showing an operating state of the neutrality restricting mechanism when the swinging member swings forward.

FIG. 4 is a front view showing a state where the support arm is tilted in the left-right direction and is being corrected to the neutral position.

FIG. 5 is a front view showing a state in which the support arm is corrected to a neutral position when the support arm is tilted in the left-right direction.

FIG. 6 is a side view showing the entire suction seeder.

FIG. 7 is a vertical cross-sectional side view in which the suction seeder is partially omitted.

FIG. 8 is a partially omitted plan view of the suction seeder.

FIG. 9 is a perspective view showing another embodiment of the suction box.

10 is a cross-sectional view taken along the line AA of FIG.

11 is a cross-sectional view taken along the line BB of FIG.

FIG. 12 is an explanatory view showing another embodiment of the tray positioning means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 10 Mounting surface 2 Suction box 21 Suction chamber 22a Suction seeding mouth 3 Support member 4 Support arm 5 Swing member 8 Neutral regulation mechanism 10 Mounting surface 21 Suction chamber 22a Suction seeding mouth A Suction passage T Tray

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akio Matsuoka 200 Asakura, Yatsuka-cho, Yabu-gun, Hyogo Prefecture Within Yatsuka Iron Works Co., Ltd. (72) Isao Furuya 200 Asakura, Yoka-cho, Yabu-cho, Hyogo Prefecture Yoka Iron Works Co., Ltd. Within

Claims (1)

[Scope of utility model registration request] 1. A base 1 having a mounting surface 10 on which a tray T is mounted, a suction chamber 2 having a suction chamber 21 and a plurality of suction seeding ports 22a opening in the suction chamber 21, and a base standing from the base 1. A support member 3 that is raised, a seeding position that is swingably supported by the support member 3, that is capable of moving the suction box 2 up and down with respect to the base body 1, and that the suction seeding port 22a is directed downward, and an upward position. A suction type including a swinging member 5 having a supporting arm 4 that is turnably supported at a suction position directed to the suction position, a suction device 6, and an air passage A that connects the suction device 6 and the suction chamber 21. A seeding machine, which supports the support arm 4 with respect to a swing member 5 so as to be capable of rotating in the left-right direction about an axis in the front-rear direction of the base body 1, and supports the support arm 4 and the swing member 5. Between the suction box 2 and
The suction type seeding machine, which is provided with a neutral regulation mechanism 8 for regulating the lateral rotation at the seeding position and holding it at the neutral position.