JPH0454735Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a seeding machine for raising seedlings.

(Prior Art) Conventionally, there is a seeding machine shown in FIG. 3. A hopper 103 and a feed roll 104 are arranged above the seedling box transfer mechanism 101 via a support frame 102, and a rotating brush 106 is placed above the feed roll 104 to adjust the amount of seeds entering the feed groove 105. Set up Hoppa 1
A guide path 108 is formed between the lower opening 107 of 03 and the feed roll 104 to guide seeds such as germinating paddy to the feed groove 105, and by the rotation of the feed roll 104, the seeds are transferred. The seedling growing box 111 is configured to deliver a certain amount of seedlings to the nursery box 111.

Both ends of the rotating brush 106 are attached to left and right mounting plates 11 which are vertically movably attached to the support frame 102 by fixing means 109 such as bolts.
When adjusting the amount of seeds entering the feeding groove 105, the fixing means 109 is loosened and the mounting plate 110 is moved up and down, and the feeding roll 104 and The distance from the rotating brush 106 can be changed.

(Problem to be solved by the invention) In the above conventional device, the rotating brush 106
The vertical adjustment is performed by tightening the fixing means 109. , because it is performed separately on the left and right sides due to relaxation, the feeding roll 1
04 and the rotating brush 106, the amount of seeds fed out from the feed roll 104 is not uniform in the axial direction of the feed roll 104, and there is a problem that the amount of seeds sown becomes uneven. . Further, since it takes a considerable amount of time to adjust the rotating brush 106, the adjustment is performed with the machine stopped, which takes a considerable amount of time and is extremely inefficient.

On the other hand, the amount of seeds that enter the feeding groove 105 of the feeding roll 104 varies depending on the dry state of the seeds. (When it is damp, the amount that enters the feed groove 105 is small, and when it is dry, the amount that enters the feed groove 105 is large.)Also, seeds are sown in a slightly germinated state; The amount of seeds that enter the feeding groove 105 differs depending on the situation.

Seeds stored in multiple bags are put into the hopper 103, and the drying state and germination state of the seeds vary depending on the bag, so the amount of seeds delivered must be adjusted even during sowing work. Therefore, it is necessary to precisely and quickly make fine adjustments to the amount of seeds fed out.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a seeding machine that can accurately and quickly adjust the amount of seeds to be delivered while accurately maintaining the parallelism of the rotating body.

(Means for Solving the Problems) The technical means taken by the present invention to achieve the above object is that the hopper 14 and the hopper 14 are mounted above the seedling box transfer mechanism 2 via the support frame 13 and can be freely driven to rotate around the horizontal axis. A rotating body made of a brush or sponge material supports the feeding roll 15 and adjusts the amount of seeds guided from the hopper 14 and entering the feeding groove 37 formed on the outer peripheral surface of the feeding roll 15 on the upper side of the feeding roll 15. 16 is provided so as to be rotatably driven around an axis parallel to the axis of the feed roll 15, in which both ends of the rotating body 16 in the axial direction are rotatably attached to the ends of a pair of left and right support arms 46. , both support arms 46 are pivotally supported on the support arm 13 so as to be able to freely swing, and both support arms 46 are pivoted so as to be able to swing together, and the distance position of the rotating body 16 relative to the feeding roll 15 can be adjusted by swinging both the support arms 46 together. Support arm 4
Sector gears 49 are formed centered on the swing center of 6, and both support arms 46 are interlocked by engaging each sector gear 49 with a pinion 51 fixed on an interlocking shaft 50.

(Function) To adjust the amount of seed feeding, the interlocking shaft 50 is rotated, the meshing position between the pinion 51 and the sector gear 49 is changed, and the left and right support arms 46 are simultaneously swung up and down. The distance position is adjusted while the rotating body 16 remains parallel to the feeding roll 15, and the amount of overlap of the rotating body 16 with respect to the feeding roll 15 is adjusted, so that the amount of seeds entering the feeding groove 37 is accurately and Adjusted quickly.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In FIGS. 1 and 2, 1 is a seeding machine, 2 is a transfer mechanism for mounting and transporting the seedling box 3, 4 is a support frame of the transfer mechanism 2, and the seeding machine 1 is a bed soil machine (not shown),
Together with a rotating brush device for removing excess soil, an irrigation device, and a soil covering device, it is placed on a support frame 4 and supported across the seedling box transfer path 5 of the transfer mechanism 2.

The support frame 4 includes a pair of left and right parallel frames 6.
and a plurality of support legs 7.

The transfer mechanism 2 consists of a large number of rollers 8 supported at intervals on a frame 6, a sprocket 10, a chain 11, a roller shaft 12, etc., which transmit power from a motor 9 to all the rollers 8, which will be described later.

The frame 6 is formed of a U-shaped cross section,
A plurality of roller shafts 12 are connected to each other at a plurality of locations, and a large number of roller shafts 12 are supported at equal intervals in the longitudinal direction, and each roller shaft 12 is provided with two rollers 8 located inside the frame 6. The sprockets 10 are located within the frame 6, and one sprocket is attached to each shaft end.

The seeding machine 1 mainly includes support frames 13 on both left and right sides fixed to the frame 6, and the support frames 1.
3, a hopper 14 removably disposed on the support frame 13, and a feed roll 15 and a rotating brush 16 (or sponge roll) pivotally supported between the support frame 13.
, the lower opening 17 of the hopper 14 and the feed roll 1
5, a guide path 18 that guides the seeds to the feed roll 15, and a motor 9 and a transmission mechanism 1.
It consists of 9.

A driven gear 20 is attached to the end of the roller shaft 12 near the seeding machine 1 opposite to the sprocket 10, and the transmission gear 21 engages with this and drives the roller shaft 1.
It is attached to a rotating shaft 22 that is mounted parallel to the rotating shaft 2,
A transmission sprocket 23 is attached to the outer end of this rotating shaft 22.
is installed, and this transmission sprocket 23
The driving force from the motor 9 is transmitted to the transfer mechanism 2 via the chain transmission means 24 and the like, and the transfer mechanism 2 moves the seedling box 3 placed on the rollers 8 at a constant speed in the direction shown by arrow A. is configured.

The support frame 13 consists of a pair of left and right plates, and a flange portion 25 provided at the lower end thereof is placed on the frame 6, and a bolt (not shown) is mounted on the support frame 13.
It is removably attached. The hopper 14 is placed on the hopper support member 26 fixed to the upper opposing surfaces of the left and right support frames 13,
It is removably attached with thumbscrews 27 or the like. Further, a roll shaft 28 of the feed roll 15 and an intermediate gear shaft 29 of the transmission mechanism 19 are supported on the support frame 13 via bearings 30 and 31, respectively, and one end of each shaft 28 and 29 is supported by the support frame 13. Transmission gears 32 and 33 that mesh with each other are fixedly attached.

An intermediate sprocket 34 for transmitting power to the transfer mechanism 2 is fixed to the end of the intermediate gear shaft 29, and power is transmitted from the intermediate sprocket 34 to the transmission sprocket 23 via the chain transmission means 24. . Note that a drive gear 36 attached to a reduction gear output shaft 35 of the motor 9 is meshed with the transmission gear 33 fixed to the intermediate gear shaft 29 .

The guide path 18 formed between the feed roll 15 and the lower opening 17 of the hopper 14 is formed by the guide plate 38 and the left and right support frames 13.

This guide plate 38 has a horizontal mounting rod 39 fixed to its upper end, and this mounting rod 39 is attached to the left and right support frame 1.
Bracket portions formed at both left and right ends of an inclined wall 38A extending below the hopper lower opening 17 and a horizontal wall 38B extending horizontally from the lower end of the inclined wall 38A in a direction opposite to the feed roll 15. 40 is attached to the support frame 13 via bolts 41 so as to be able to freely adjust the inclination angle. Further, on the lower surface of the horizontal wall 38B, there is provided a seed receiving brush 42 whose tip slides into contact with the feeding roll 15.
are installed across the entire width.

Both ends of the rotating shaft 43 of the rotating brush 16 are
Each protrudes through an arc-shaped elongated hole 44 opened diagonally upward in the support frame 13, and is rotatably supported by one end of a pair of left and right support arms 46 via a bearing 45. A gear 47 that meshes with the transmission gear 33 is fixed to the gear 47 so as to rotate in the same direction as the feed roll 15.

As shown in FIG. 2, a boss portion 48 is provided at the intermediate portion of the left and right support arms 46, and the boss portion 48 is rotatably supported by the end portion of the intermediate gear shaft 29 of the transmission mechanism 19. A sector gear 49 centered on the intermediate gear shaft 29 is formed at the other ends of the left and right support arms 46, respectively. Each sector gear 49 is meshed with a pinion 51 which is wedged to the end of an interlocking shaft 50 that passes through both support frames 13 and is supported. Operate the interlocking shaft 50
By rotating, both support arms 46 swing together around the intermediate gear shaft 29 via the pinion 51 and the sector gear 49, and the rotating brush 16 is moved in the distance direction with respect to the feeding roll 15. The position is now being adjusted.

The adjustment handle 52 is fan-shaped and has a scale 53 on its outer peripheral edge. The amount of adjustment can be easily seen from the outside, and a curved long fixing hole 54 is provided, and a fixing bolt 55 inserted through the long hole 54 and screwed onto the support frame 13 fixes the handle. 52 is fixed to the support frame 13. The fixing bolt 55 and the elongated hole 54 serve as fixing means for fixing the support arm 46 to the support frame 13 at the adjusted position. In addition, the interlocking shaft 50 to the adjustment handle 5
2 may be omitted, the end of the support arm 46 itself may be used as an adjustment handle, and the support arm 46 may be fixed to the support frame 13 with a bolt and an elongated cylindrical hole.

When the rotating brush 16 is advanced toward the feeding roll 15 side, the length of the brush hairs entering into the feeding groove 37 becomes longer, discharging more seeds from the groove 37, reducing the amount of seed feeding, and vice versa. Rotating brush 16
Retracting increases the amount of seeds fed out.

Reference numeral 56 denotes a chute, which is located between the lower opening 17 of the hopper 14 and the feed roll 15, so that one upper end thereof slides into contact with the rotating brush 16 and the other lower end faces into the guide path 18. A flange portion 56A is attached to the support frame 13 so as to be able to adjust the chute inclination angle, and a space 57 is formed between the flange portion 56A and the lower delivery roll 15. Therefore, the seeds falling from the lower opening 17 of the hopper 14 fall onto the inclined wall 38A of the guide plate 37.
The feeding roll 15 is sliding down and rotating.
The amount of seeds is adjusted by the rotating brush 16 rotating in the opposite direction, and a small portion of the excess seeds is returned onto the feeding roll 15. However, most of the excess seeds are caught between the bristles of the rotating brush 16 and returned to the space 57, and when the rotating brush 16 slides against the end of the chute 56, the bristles of the brush are bent. As soon as the brush leaves the end of the chute 56, the spring action (restoring force) of the bristles of the brush flips up the seeds caught between the bristles, and the seeds are thrown onto the chute 56. The object slides and falls onto the guide path 18. Therefore, a space is formed below the chute 56 where seeds are relatively not scattered, and the seeds are always fed onto the feed roll 15 with a constant pushing force, so that a constant amount of seeds are fed. Therefore, the amount of seeds that enter the feeding groove 37 is also constant, and the amount of seeds can be accurately adjusted by the rotating brush 16, so that the optimum amount of seeds can be fed out with high precision.

Reference numeral 58 denotes a seed guide plate, which has a curved shape with approximately the same curvature as the outer circumferential surface of the feed roll 15, and is brought into contact with the feed side of the feed roll 15 to guide the seeds that have entered the feed groove 37 on the guide path 18 side. Feeding roll 1
This guides the object to the bottom of No. 5 without allowing it to fall naturally.

Reference numeral 59 denotes a seed dropping member, which is made by bending a spring wire into a substantially U-shape, has both ends secured to the support frame 13 with pins 61, and is supported by a rod 60 at the front and rear middle portions of both sides. The parallel portion 59A is biased upward so that it is always in contact with the roll circumferential surface. Therefore, the feeding groove 37
The seeds attached inside are reliably pushed out from the feeding groove 37 and are forcibly dropped onto the soil floor inside the seedling raising box 3.

The above embodiments are not limited to the above embodiments, but include the inclination angle of the guide path 18, the size of the hopper lower opening 17, the distance between the guide plate 38 and the chute 56, the inclination angle of the chute 56, and the distance between the chute 56 and the chute 56. The state of sliding contact with the rotating brush 16, etc. needs to be selected and set to suit the properties of the seeds being handled.

In the above embodiment, the center of swing of the support arm 46 is the intermediate gear shaft 29, but this is because the power is transmitted to the rotating brush 16 by a gear mechanism, and this power transmission is performed by a chain. Since the tension can be adjusted, the center of swing of the support arm 46 can be moved to a position unrelated to the intermediate gear shaft 29.

(Effect of the invention) According to the invention, the sector gear 49 centered on the swing center of the support arm 46 is formed on both support arms 46, and the interlocking shaft 5 is formed on each sector gear 49.
By meshing the pinion 51 fixed on the 0, both support arms 46 are interlocked, and by rotating the interlocking shaft 50, both the support arms 46 are connected through the meshing of the pinion 51 and the sector gear 49. The roll 15 is integrally oscillated and feeds out the rotating body 16.
Since the distance movement is performed relative to the feed roll 15
The parallelism of the rotating body 16 to the feed roll 15 is maintained with high precision, and the amount of seed feeding can be made uniform in the axial direction of the feeding roll 15, making it possible to perform good sowing without variation, and moreover, accurate and quick seed feeding. The amount can be finely adjusted.

[Brief explanation of the drawing]

Fig. 1 and Fig. 2 show an embodiment of the present invention, Fig. 1 is a partially cutaway side view, Fig. 2 is a cross-sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a diagram showing the prior art. FIG. 2...Seedling box transfer mechanism, 13...Support frame, 14...Hopper, 15...Feeding roll, 1
6... Rotating body, (rotating brush), 17... Lower opening, 18... Guide path, 37... Feeding groove, 43...
... Rotating shaft, 46 ... Support arm, 49 ... Sector gear, 50 ... Interlocking shaft, 51 ... Pinion.

Claims (1)

[Scope of utility model registration request] A support frame 13 is placed above the seedling box transfer mechanism 2.
supports the hopper 14 and the feed-out roll 15 which can be driven to rotate around the horizontal axis via the hopper 14, and the seeds that are guided from the hopper 14 and enter the feed-out groove 37 formed on the outer peripheral surface of the feed-out roll 15 are placed above the feed-out roll 15. A seeding machine in which a rotating body 16 made of a brush or sponge material for adjusting the amount is rotatably driven around an axis parallel to the axis of the feed roll 15,
Both ends of the rotating body 16 in the axial direction are rotatably attached to the ends of a pair of left and right support arms 46, and both support arms 46 are pivotably supported on the support frame 13, so that the support arms 46 are In order to adjust the distance position of the rotating body 16 with respect to the feeding roll 15 by integrally swinging, sector gears 49 centered on the swing center of the support arms 46 are formed on both support arms 46, and sector gears 49 are formed on each sector gear 49. A seeding machine characterized in that both support arms 46 are interlocked and connected by meshing a pinion 51 fixed on an interlocking shaft 50.