JPH01206908A - Sowing apparatus for raising seedling box - Google Patents

Abstract

PURPOSE:To change the height of a rice seed feeding apparatus corresponding to a stripe seeding mode and a broadcast seeding mode, by constructing a rice seed feeding apparatus to be vertically shiftable relative to a transfer table by a parallel motion mechanism and to be fixable at a desired height with a fixing device. CONSTITUTION:The height of a rice seed feeding apparatus 1 is changed by a parallel motion mechanism 29 between a high-position corresponding to a stripe seeding mode and a low-position corresponding to a broadcast seeding mode and is fixed to the height with a fixing device 64. Even raising seedling boxes having various heights can be sowed by the use of the present apparatus.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a seeding device for seedling raising boxes.

(Prior art) Conventionally, a seed supply device having a type 1 paddy supply hopper, a seed rice delivery roll, etc. is provided on a transfer table for horizontally transferring the seedling-raising boxes, and the transfer table detects the seedling-raising boxes passing below the supply device. Japanese Utility Model Publication No. 56-7125 discloses a system in which a seedling box detection device is provided, and the feeding device and the seedling box detection device are linked to cause seeds to fall only when the seedling box passes below the feeding device. It is known from the official gazette.

Further, an earlier Japanese Patent Application No. 61-282584 has proposed a device in which a seed supply device is moved up and down diagonally relative to a transfer table to enable withdrawal and row sowing.

(Problems to be Solved by the Invention) In the prior application, the seed rice supply device is adjusted diagonally up and down with respect to the transfer table, so the seed supply position of the seed rice supply device changes as it moves upward. It will gradually move backwards.

Therefore, unless the timing of the detection device for detecting the seedling box is adjusted, the seedling box below the feeding device will pass a short distance before dropping the seeds, which is inconvenient. Therefore, it was necessary to both adjust the seed rice supply device up and down with respect to the transfer table and adjust the timing of the detection device for detecting the seedling box.

(Means for Solving the Problem) Therefore, the present invention provides a seed supply device 1 having a seed supply hopper 2, a seed rice delivery roll 9, etc. on a transfer table 25 that horizontally transfers the seedling raising boxes. is provided with a seedling box detection device for detecting a seedling growing box passing below the feeding device 1, and operates the feeding device 1 when the sensing device section detects the seedling growing box 5,
The rice seed supply device 1 is a seeding box seeding device configured to move up and down perpendicularly to the transfer table δ by a parallel movement mechanism, and can be fixed at a desired height by a fixing device 64. It is something.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a seed rice supply device, and a seed rice supply hopper 2 is provided at the upper front side of the seed rice supply device l. A grain board 3.4 of the shape is provided. 5 is a supply port, 6 is a supply rate adjustment plate of the supply rate adjustment plate @7 attached to the seed rice supply hopper 2, and 8 is a brush provided on the lower surface of the lower end of the grain board 4, and the tip of the brush 8 is is brought into sliding contact with the outer peripheral surface of the horizontal axis feeding roll 9.

On the outer circumferential surface of the horizontal-axis feed roll 9, feed-out recesses 10 in the form of horizontal grooves parallel to the generatrix direction are formed around the entire circumference at desired intervals. form. The feeding recess 10 is formed to have a width that allows the seed rice to fit in one horizontal row.

When the feeding recess 10 is viewed from the side, the forward rotation side 11 has a corner cut out to form an inclined surface 12, and the backward rotation side 13 is formed as an upright wall having a corner.

The inclined surface 12 is formed into an inclined surface that becomes lower from the forward rotation side 11 to the backward rotation side 13.

Therefore, the horizontal shaft feed-out roll 9 of the unexamined example is formed as a large-diameter roll, and the outer circumferential surface is formed into an arcuate surface as close to a planar shape as possible to ensure that the seed rice fits into the feed-out recess 10. match.

In addition, slits 14 are formed on the outer peripheral surface of the horizontal shaft feeding roll 9 at intervals shorter than the horizontal width of one grain of rice seed in the left-right direction.
Provided around the entire circumference. The depth of the slits 14 is the same as or slightly deeper than the feeding recess lO, and a scraping knife 15 is fitted into each slit 14.

A second rotating leveling brush 16 is provided above the road of the horizontal axis feed roll 9, and a first rotating leveling brush 16 is provided between the second rotating leveling brush 16 and the seed supply section 17 above the brush 8. A brush 18 is provided to level the excess seed rice co-rotating with the horizontal axis feed-out roll 9 over two stages.

The first rotary leveling brush 18 is formed to have a smaller diameter than the second rotary leveling brush 16, and has a gap 19 between it and the lower surface of the grain board 3, so that its rotation shaft is connected to the seeding device. Side plate 21
Attach by attaching it to the shaft.

The gap 19 allows the seed rice swept back by the second rotating leveling brush 16 to further skip the first rotating leveling brush 18 and return to the brush 8 side. The central axis η of the flat brush 16 is the movable adjustment plate 2
3, and the upper part of the movable yJJ joint plate is attached to the side plate 21 with bolts 24 so as to be vertically movable.

Thus, the rice seed supply device 1 is attached to the horizontal transfer table 6 that transports the seedling box horizontally so that its height can be adjusted. In other words, the height position can be switched between when the entire seed supplying device 1 is located at an upper position and used for row sowing, and when the entire seed rice supplying device 1 is located at a lower position and used for sowing. and is installed in a finely adjustable manner so that it can be used with seedling boxes of various heights.

A pair of left and right support frames 26 formed of flat plates long in the front-rear direction are provided on the upper surface of the transfer table 6 below the seed rice supply device 1, and the seed rice supply device 1 is attached to the support frames 26 via a parallel movement mechanism n. .

Reference numeral 30 denotes a seven-fold front rod of the parallel motion mechanism, and one end thereof is freely rotatably attached to an upper fixed shaft 31 that protrudes outward and is provided at approximately the center of the lower part of the side plate 21 of the seed rice supply device 1. 5
A lower front moving shaft is fixed to the lower end portion, and the lower front moving shaft is engaged in a long hole formed in the front lower part of the support frame 26 so as to be movable back and forth.

g is a lower front rod of the parallel motion mechanism, and its lower end is rotatably pivoted to a lower fixed shaft 38 that protrudes outward and is provided directly below the upper fixed shaft 31 on the outer surface of the support frame 9. Then, the upper front moving shaft 39 at the upper end is engaged in an elongated hole 40 formed in the front lower part of the side plate 21 so as to be movable back and forth.

34 is the upper rear rod of the parallel motion mechanism.

and the end portion is pivotally attached to the upper fixed shaft 31 with only rotational freedom,
The lower rear moving shaft of the lower end portion is engaged in a slotted wing formed in the rear lower part of the support frame so as to be movable back and forth.

Reference numeral 41 denotes a lower rear rod of the parallel movement mechanism, whose lower end is rotatably attached to the lower fixed shaft wing, and an upper rear moving shaft 42 at the upper end is formed at the rear lower part of the side plate 21. It is engaged in the elongated hole 43 so as to be movable back and forth.

The upper front rod (9), the upper rear rod 34, the lower front rod g, and the lower rear rod 41 are formed to have the same length,
The upper front rod 30 and the lower front rod 37 intersect at the center and are pivoted at the intersection with a pin n, and the elongated hole (and the sum of the elongated holes are formed parallel to each other) (9
) and the lower front rod g form one parallel movement mechanism to move the entire seed rice supply device l up and down.

Similarly, the side rear rod U and the lower rear rod 41 intersect at the center, and the intersecting portion is pivoted with a pin, and the elongated hole Atsushi and the elongated hole 43 are formed in parallel. Thus, the upper rear rod U and the lower rear rod 41 form one parallel movement mechanism.

Therefore, the upper front rod (and the lower front rod y, the upper rear rod, and the lower rear rod 41 constitute a pair of parallel interlocking mechanisms, and the parallel movement mechanism includes the upper rear moving shaft wing and the upper rear rod 41). When the moving shaft 42 is lifted with both hands, the upper front rod 30 and the upper rear rod 34 rotate inward about the upper fixed shaft 31, and the lower front rod 37 and the lower rear rod 41 rotate the lower fixed shaft wing. The rotation of each rod 30, 34, 37, and 41 causes each long hole feather, A, 4
Each moving shaft located outside of 0.43, A, 39
．． 42 moves inward and each rod (,34,g.

By the parallel movement of 41, the whole seed supplying device 1 is transferred to the transfer table 5.
Raise it to the height for row sowing, which is higher than the height of the seedling.

A fixing device 64 is then attached to the parallel motion mechanism. The fixing device 64 includes an engagement groove in which the upper end of the arm 44 is pivoted to the upper rear moving shaft 42, and an engagement shaft 45 fixed to the lower end of the arm 44 is formed at the rear of the support frame 26. 47. When the engagement shaft 45 is engaged with either of the engagement grooves 4B and 47, the arm 44 stops the upper rear moving shaft 42 of the lower rear rod 41 from moving within the elongated hole 43, Rotation of each of the rods 30.34, 37.41 of the parallel interlocking mechanism is stopped to maintain the height of the seed rice supply device 1.

The engagement groove 46 maintains the height of the rice seed feeding device 1 for high row sowing, and extends from 18 to 18 in the left-right direction below the horizontal axis feed-out roll 9.
Various strips 48 having 20 divided drop openings are installed.

The engagement groove 47 is formed in the arm 4 when the row sowing body 48 is removed and the height of the rice seed supply device l is maintained at a low level for sowing.
The engagement shaft 45 of No. 4 is engaged. Both the engaging grooves 4B and 47 can be finely adjusted in three stages so that they can be used with seedling growing boxes δ of various heights.

The upper fixed shaft 31 and the upper front moving shaft (a spring 56
Lock both ends of the lower fixed shaft (and the lower front moving shaft!
Both ends of the spring 57 are engaged with.

The spring group 57 urges the upper front moving shaft (and the lower front moving shaft support) to move toward the respective identification shafts 31 and 38, thereby smoothly moving the type 1 paddy supply device 1 upward. .

A guiding portion 49 is formed approximately at the center of the side plate 21 by a protruding plate that projects downward. The guide portion 49 is connected to the support frame 2.
6 to guide the vertical movement of the rice seed supply device 1. A mounting groove is formed on the rear side of the guide portion 49, and a parallel link 51 of the above-mentioned strip body is mounted in the mounting groove 50.

Therefore, on the transfer table 25 below the mallet shaft delivery roll 9,
A seedling box detection device 66 is provided to detect a seedling box holder transferred by the transfer table 25 and passing below the seed rice supply device 1. The seedling growing box detection device 66 is formed by a light emitter and a photoreceptor 68, and when the seedling growing box is detected by the seedling growing box 65 @66, the seedling feeding device 1 automatically starts supplying the seed rice.

Reference numeral 52 denotes a seed guiding cover provided on the side surface of the horizontal axis feeding roll 9, which guides the seed rice fitted into the feeding recess 10 from the top position to the bottom position without damaging it. 53 is a sponge provided inside the rice seed guide cover 52; 54 is a motor that drives the horizontal shaft delivery roll 9, the first rotary leveling brush 18, and the second rotary leveling brush 16; and 55 is a motor that adjusts the rotation of the motor 54. 58 is the rotating shaft of the horizontal feed roll 9, 59 is a sprocket, 60 is a transmission shaft, 61 is a sprocket, 62 is a tension roller, and 63 is a chino.

(effect) Next, we will discuss the effect.

1, the rice seed feeding device 1 is attached to a support frame 26 via a parallel interlocking mechanism 29, and
9 slightly lifts the upper front moving shaft and the upper rear moving shaft 42 with both hands, and the arm 44 is engaged with the engagement groove 46.
When the engagement shaft 45 of
1, and the lower front rod 37 and the lower rear rod 4.
1 rotates outward around the lower fixed shaft 38 and opens each long hole 33.36 by the rotation of each rod 30.34, 37.41.
．． Each rod 30.3 located inside 40.43
Since the moving axes 32.35.39.42 of 4.37.41 move outward in the respective elongated holes 33.36 and 40.43, the f-line movement of each rod 30.34.37.41 causes The rice seed supply device 1 is vertically moved down to a lower height for discharging with respect to the transfer table 25.

A nationally specified device 64 is attached to the parallel interlocking mechanism 29, and when the engagement shaft 45 of the arm 44 is engaged with the engagement groove 47, the upper rear movement shaft 42 of the lower rear rod 41
Since the movement of the rods in the elongated hole 43 is stopped, the rotation of each of the rods 30, 34, 37, and 41 of the parallel interlocking mechanism 29 is stopped to maintain the height of the seed rice supply device l.

In this case, both ends of a spring 56 are locked to the upper fixed shaft 31 and the upper front moving shaft 39, and both ends of a spring 57 are locked to the lower fixed shaft 3 and the lower front moving shaft. can be,
Since the springs 56 and 57 both bias the upper front moving shaft 39 and the lower front moving shaft to move toward the respective fixed shafts 31 and 38, the seed rice supply device 1 is slowly moved vertically downward.

In this state, when the seed rice is put into the seed rice supply hopper 2 and the seedling raising box is transferred on the transfer table, the horizontal axis feed-out roll 9
The lower transfer table 6 is provided with a seedling box detection device 66 that detects the seedling box 65 transferred by the transfer table 5 and passing below the seed rice supply device l. When it is detected, the axis green roll 9 and the -
By rotating the rotary leveling brush 18 and the second rotary leveling brush 16, the rice seeds in the rice seed supply hopper 2 are transferred to the grain plate 4-
Most of the excess seed rice flows down to the seed supply section 17, fits into the feed-out recess 10 of the horizontal-axis feed-out roll 9, rises due to the rotation of the horizontal-axis feed-out roll 9, and rotates together with the horizontal-axis feed roll 9. The first rotating leveling brush 18 and the second rotating leveling brush 16
The rice seeds that have been leveled and fitted into the feeding recess 10 are guided downward by the seed guiding cover 52, fall downward at the lowest point, and are withdrawn into the seedling raising box 65.

When disseminating moxibustion, when lifting the upper front moving shaft 39 and the upper rear moving shaft 42 with both hands, the side rod 30 and
(The rear rod 34 rotates inward around the upper fixed shaft 31, and the lower front rod 37 and the lower rear rod 41 also rotate inward around the lower fixed shaft 38, so that each rod 30.34,
g, 4! As a result of the rotation, the movement axes 32, 35, 39, 42 of the rods 30, 34, 41 located on the outside of each elongated hole 33.36° 40.43 move into each elongated hole 33
．． 36.40.43, the parallel movement of each rod 30.34, r, 41 moves the type 1 paddy supply device 1 vertically upward to the height for row sowing with respect to the transfer table 2. .

When the engagement shaft 45 of the arm 44 of the fixing device 64 is engaged with the engagement groove 46, each rod 30 of the parallel motion mechanism.
The rotation of 34, 37, and 41 is stopped and the height of the rice seed supply device 1 is maintained. Therefore, the parallel links 51 of the strip spreading body 48 can be attached to the mounting grooves on the rear side of the guide portion 49, and the strip spreading body 48 can be attached below the horizontal axis feeding roll 9.

The seed rice fitted into the feeding recess 10 of the horizontal axis feeding roll 9 is guided downward by the seed guiding cover 52, and when it falls downward at the lowest point, it falls into the row sowing body 48 and is sown in rows inside the seedling box. be done.

In this case, since the seed rice supply device 1 moves up and down vertically, the position where the seed rice falls remains the same whether it is sowing or row sowing. Seeds can be accurately sown in the box 5.

Further, both ends of a spring 56 are engaged with the upper fixed shaft 31 and the upper rear movable shaft, and both ends of a spring 57 are engaged with the lower fixed shaft 31 and the lower front movable shaft. Both the springs 56 and 57 connect the upper front moving shaft 39 and the F section front moving shaft to the upper fixed shaft 31. This is because the lower fixed shaft 38 is biased to move biased.

When moving the seed rice supply device 1 upward, it can be done with a light force.

(Efficacy r A seedling box sowing device is provided for detecting the seedling growing box I passing below I, and when the seedling growing box I is detected by the detection device R66, the supply amount al is actuated, wherein the seed paddy feeding device 1 is a seeding device for a seedling box, which is configured to be vertically adjusted up and down on the transfer table by means of a parallel movement mechanism, and can be fixed at a desired height by a fixing device 64. , B. Seed supply device as a seeding device for row sowing and withdrawal.
The height can be changed.

Various seedling raising boxes with different heights can also be used by finely adjusting the height to the desired height.

C. Since the entire seed rice supply device 1 is vertically moved up and down, the position where the seed rice is dropped is constant, and timing adjustment of the seedling box detection device 66 is not required.

This effect is achieved.

[Brief explanation of the drawing]

FIG. 1 is an overall cross-sectional view of the main part, FIG. 2 is a side view of the seeding condition, and FIG. 3 is a side view of the seeding condition. Explanation of symbols 1... Seed rice supply device, 2... Seed rice supply hopper, 3
... Grain board, 4... Grain board, 5... Supply port, 6.
...Adjustment plate, 7... Supply amount adjustment device, 8... Brush, 9... Horizontal axis feeding roll, 10... Feeding recess, 11
... Rotation forward side, 12 ... Inclined surface, 13 ... Rotation backward side, 14 ... Slit, 15 ... Knife,
16... Second rotating leveling brush, 17... Shelf paddy supply section, 18... First rotating leveling brush, 19... Gap, 2
0... Rotating shaft, 21... Side plate, η... Central axis, n
... Adjustment plate, 24 ... Bolt, 25 ... Horizontal transfer table, 26 ... Support frame, 29 ... Parallel movement mechanism, 30 ... Upper front rod, 31 ... Upper fixed shaft ,3
2... Lower front moving axis, 33... Long hole, 34...
Upper rear rod, 35...lower rear moving shaft, 36...
Elongated hole, lower front rod, 38... lower fixed shaft,
39... Upper front moving axis, 40... Long hole, 41.
...Lower rear rod, 42...Upper rear moving axis, 43.
...Elongated hole, 44...Arm, 45...Engagement' shaft, 4
6.47... Engagement groove, 48... Row spreading body, 49...
Guidance part, (capital)...Mounting groove, 51...Parallel link,
52... Seed guide cover, 53... Sponge, 54
... Motor, 55 ... Adjustment knob, 56.57.
...Spring, 58...Rotating shaft, 59...Sprocket, 60...Transmission shaft, 61...Sprocket, ore...
・Tension roller, 63...cheno, 64...
Fixing device, 5... Seedling box, 66... Seedling box detection device, nail... Light emitter, 68... Photoreceptor. outside name

Claims (1)

[Claims] A transfer table 25 horizontally transfers a seedling raising box 65 and a seed supply device 1 having a seed supply hopper 2 and a seed supply roll 9, etc.
A seedling box detection device 66 is provided on the transfer table 25 to detect the seedling growing box 65 passing below the feeding device 1, and when the sensing device 66 detects the seedling growing box 65, the feeding device 1 is activated. In the device in which the rice seed supply device 1 is operated, the seed rice supply device 1 is configured to be vertically adjusted up and down with respect to the transfer table 25 by a parallel movement mechanism 29, and can be fixed at a desired height by a fixing device 64. A seeding device for seedling boxes.