JPH055445B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a seedling-raising seeding machine that sows seeds while continuously transporting seedling-raising boxes.

(Prior art) A seedling seeding sowing machine has a frame installed on a transfer mechanism that continuously transports seedling boxes, and a feed roll is rotatably supported on this frame around a horizontal axis, and is fed out in synchronization with the transfer of the seedling boxes. The roll is configured to be rotated to drop and supply rice seeds from the feeding recess of the feeding roll onto the bed soil of the seedling box. A round hole shape or a concave shape are alternatively used.

(Problems to be Solved by the Invention) In the above-mentioned conventional technology, it is not possible to change the delivery roll to a delivery roll with a different shape of the delivery recess without removing the roll shaft or disassembling the roll from the frame. Therefore, it was extremely difficult to change the sowing pattern with a single seeding machine.

(Means for Solving the Problems) The present invention provides the feeding roll 7 in the cassette case 26.
The cassette case 26 is supported by the sowing machine 1.
The above-mentioned problems of the conventional technology can be solved by making it insertable and removable into the frame 4 of the device, and by configuring the feed roll 7 to be rotationally driven in the inserted state.

That is, the specific structure of the problem solving means of the present invention is characterized by mounting the seeding machine frame 4 on the support frame 11 of the transfer mechanism 8 for transferring the seedling growing box 13, attaching the hopper 5 to this frame 4, and A seeding machine in which a drive mechanism 9 is disposed, and a feed roll 7 is disposed inside the frame 4, which is driven by the drive mechanism 9 to supply seed rice 16 received from a hopper 5 into a seedling growing box 13 passing below. In this case, the feed roll 7 has a roll gear 27 on the side, and is connected to a cassette case 26 via a roll shaft 29.
This cassette case 26 is rotatably supported by
is removably inserted into and fixed to the frame 4 attached to the support frame 11 from one side thereof, and the frame 4 is provided with a gear 88 of the drive mechanism 9 that meshes with the inserted roll gear 27. At the point.

(Function) When the feed roll cassette 44, which has a roll gear 27 provided on the side of the feed roll 7 which has a feed recess 7b of a desired shape and is rotatably supported by the cassette case 26, is inserted into the sowing machine frame 4. The feed roll 7 is set at the position required for seeding, the roll gear 27 is engaged with the power transmission gear 88 on the frame 4 side, and the feed roll 7 is ready for seeding work. Replacement with a feed roll 7 having a different shape of the feed recess 7b is carried out by preparing a plurality of types of feed roll cassettes 44 and inserting and removing each cassette 44 from the frame 4.

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

In Figs. 1 to 7, reference numeral 1 denotes a seeding machine that can constitute a series of seeding devices together with a soil digging machine and a watering machine, and is mounted on a seeding device stand 2.

The seeding machine 1 has a hopper 5 fixed to a frame 4 having a pair of left and right side plates 3, a feeding mechanism 6 disposed approximately at the front and back center of the frame 4, and a feeding roll 7 of this feeding mechanism 6 and a seeding device stand 2. The drive mechanism 9 is configured to drive the transfer mechanism 8 and the like.

The transfer mechanism 8 has a plurality of rotary shafts 12 supported at intervals on a pair of right and left support frames 11 made of angle materials forming the apparatus stand 2, and each of the rotary shafts 1
2 is provided with a roller 14 on which the seedling raising box 13 is placed, and each rotating shaft 12 is connected by a chain transmission means 15, making it possible to continuously transport the seedling raising box 13 in the direction of arrow A in Fig. 1 while placing it thereon. ing.

A guide plate 17 is provided at the bottom of the hopper 5 to guide the falling seed rice 16 to the feeding roll 7.
This guide plate 17 has an inclined part 17a that is inclined downward toward the feeding roll 7 side, and a horizontal part 17b that extends approximately horizontally from this inclined part 17a.
and the feed roll 7 form a substantially inverted triangular seed reservoir 18.
A feeding brush 19 is rotatably disposed within the seed reservoir 18.

The feeding brush 19 is a rubber plate or a hair blade 19.
a.The outer periphery is the slope part 1.
7a and the outer circumferential surface 7a of the feeding roll,
The seed rice is caught between the blades 19a and fed into the feeding recess 7b.

Reference numeral 20 denotes a fixed brush arranged on the lower surface of the horizontal portion 17b of the guide plate 17, whose position can be freely adjusted in the distance direction with respect to the feed roll 7, and closes the gap 21 between the lower end of the guide plate 17 and the feed roll 7. This prevents the rice seeds from falling from the seed storage section 18, and also shakes off the rice seeds that return from the feed roll 7 without being sown from its outer peripheral surface 7a.

The upper side of the guide plate 17 is swingably attached to the frame 4 via a bolt 23, and the lower side is formed with an arc-shaped elongated hole 24 centered on the bolt 23, which passes through this elongated hole 24 and the side plate 3. butterfly bolt 25
is provided, and is fixed in the position shown in FIG. 1 with this butterfly bolt 25. When the butterfly bolt 25 is loosened, the guide plate 17 can swing within the range of the elongated hole 24,
By swinging, the rice seeds 16 in the seed reservoir 18 can be removed or the fixed brush 20 can be replaced.

An adjustment brush 22 is provided almost directly above the feed roll 7.
are arranged so that they can rotate freely. This adjustment brush 2
2 has sponge, rubber or hair in a cylindrical shape on the surface;
It is in sliding contact with the outer circumferential surface 7a of the delivery roll, and can be freely adjusted in position relative to the delivery roll 7 in the direction of distance, and by adjusting the position, the amount of seed rice in the delivery recess 7b of the delivery roll 7 is adjusted.

The feeding mechanism 6 includes a feeding roll 7, a feeding brush 19, a fixed brush 20, an adjusting brush 22, etc., and the parts other than the feeding roll 7 are provided on the frame 4, whereas the feeding roll 7 is installed in the cassette case. 26 and can be freely inserted into and removed from the frame 4.

The feeding roll 7 has a feeding recess 7b such as a horizontal groove, a circular hole, or a depression formed on its outer peripheral surface 7a, and has a roll gear 27 on one side thereof, which is rotatably fitted to a roll shaft 29 via a bearing 28. has been done.

The cassette case 26 is formed by connecting side plates 30 located on the left and right sides of the feed roll 7 through a connecting groove 31, and supports both ends of the roll shaft 29 on the left and right side plates 30 via a boss body 32.

Further, the cassette case 26 is provided with an arcuate guide member 33. This guide member 33
An elastic plate 35 made of sponge or the like is attached to the inside of the iron plate 34 whose both ends are fixed to the left and right side plates 30, and the inner peripheral surface of the elastic plate 35 is made of wear-resistant material such as polyester.
It is formed by attaching a synthetic resin plate 36 with excellent chemical resistance, weather resistance, etc., and its inner circumferential surface 36a runs closely along the outer circumferential surface 7a of the feeding roll, and the seed rice that has entered the feeding recess 7b is 16 so as to reach a seeding position 37 without falling on the way.

Insertion guides 38 for the cassette case 26 are provided on the inner surfaces of the left and right side plates 3 of the frame 4. The insertion guide 38 consists of an upper guide 39 and a lower guide 40 made of angle iron. The boss body 32 of the lower guide 40 is rotatable, and the upper guide 39 prevents the boss body 32 from moving upward. . The upper and lower guides 39 and 40 have an inclined portion 41 at one end that guides the introduction of the boss body 32, and a stopper 42 that sets the position toward the feeding brush 19 is provided on the back side of the lower guide 40.

The cassette case 26 can be inserted into and removed from the frame 4 via the boss body 32 and the upper and lower guides 39 and 40, the insertion position is set via the stopper 42, and the cassette case 26 can be fixed to the frame 4 via the bolt 43.

One independent feed roll cassette 44 is formed by the feed roll 7, roll gear 27, cassette case 26, guide member 33, etc., and this cassette 44 has a shape of the feed recess 7b, such as a horizontal groove, a round hole, a recess, etc. There are many types of different shapes available, and they can be used interchangeably depending on the sowing form.

The prime mover 51 of the drive mechanism 9 is a motor provided on the upper part of the frame 4, and from this prime mover 51 one side plate 3
via a first transmission means 52 arranged on the outer surface of the
Power is transmitted to the transfer mechanism 8 and the drive shaft 53.

A sprocket 54 and chain guide covers 55 are provided on the left and right sides of the drive shaft 53, which is pivotally supported by the frame 4, and sprockets 56, 57 are provided, and these sprockets 54, 5
6, 57 and the sprocket 58 of the prime mover 53.
A book chain 59 is wrapped around it.

61 is a tension pulley of the chain 59, and 62 is a clutch pulley. This clutch pulley 62 is provided at the tip of an arm 63 that is pivotally supported on the side plate 3, and the arm 63 is connected to a lever 64.
By rotating in the direction of arrow B, the chain 59 can be moved above the sprocket 54 as shown by the two-dot chain line in FIG. 5, and the chain 59 can be separated from the sprocket 54. These constitute a disconnection clutch 65, and when the clutch 65 is disconnected, only the transfer mechanism 8 is driven, and when it is engaged, the seeding machine 1 is also driven.

Two large and small gears 66 and 67 are fixed to the inside of the frame 4 of the drive shaft 53, and as shown in FIG.
The small gear 67 meshes with the gear 70 of the upper transmission shaft 69 to transmit power to the other side of the frame 4.

A second transmission means 72 is arranged on the outer surface of the side plate 3 on the other side of the frame 4. In Figure 6, the second
The transmission means 72 has a large sprocket 73 fixed to the shaft end of the upper transmission shaft 69 and a derailleur 74 (multi-speed gear) disposed at the lower part of the frame 4.

A lower power transmission shaft 75 is rotatably mounted on the left and right side plates 3. A plurality of gear groups 76 of a derailleur 74 are provided at one end of the lower power transmission shaft 75, and a jog pulley 77 and a gear group 76 are provided at the end of the lower power transmission shaft 75. A support body 79 on which a tension pulley 78 is pivotally supported is arranged. A chain 80 is wound around the large sprocket 73 and derailleur 74, and the rotation of the upper transmission shaft 67 can be transmitted to the lower transmission shaft 75 in multiple stages.

Reference numeral 81 denotes a speed change lever device provided on the upper part of the frame 4, and by rotating the speed change lever 82, the derailleur 74 can be operated via a Bowden wire 83.

A gear 85 is fixed to the other end of the lower transmission shaft 75, and this gear 85 meshes with an idler gear 87 provided on an intermediate shaft 86. This idler gear 87
and gear 85 are replaceable, and by replacing them, the rotation speed of intermediate shaft 86 can be changed. A meshing gear 88 is fixed to the intermediate shaft 86, and this meshing gear 88 can mesh with the roll gear 27 of the feeding roll 7 of the insertion device, and the feeding roll 7 is moved by the power transmitted from the second transmission means 72. drive the rotation.

A gear 89 having the same tooth profile as the meshing gear 88 is provided on the rotating shaft 90 of the feed brush 19, and this gear 89 can engage and disengage from the roll gear 27, causing the feed brush 19 to rotate in synchronization with the feed roll 7. .

Next, the sowing operation in the sowing machine 1 having the above configuration will be explained.

The seed rice 16 in the hopper 5 falls along the guide plate 17 and enters the seed reservoir 18 by the rotation of the feeding brush 19, and is also moved into the feeding recess 7b of the sowing roll 7 by the feeding brush 19. is forcibly inserted into.

The feed roll 7 rotates in the direction of the arrow in FIG.
3, it is sent to the sowing position 37 without falling naturally, and at this sowing position 37, the transfer mechanism 8
The seedling growing box 13 is transported in the direction of arrow A by
It is supplied falling onto the floor of the earth.

(Effects of the Invention) According to the present invention described in detail above, the feeding roll 7
has a roll gear 27 on the side and a roll shaft 29
The cassette case 26 is rotatably supported by a cassette case 26 via a cassette case 26, and the cassette case 26 is removably inserted into a frame 4 attached to the support frame 11 from one side and can be fixed. Since the gear 88 of the drive mechanism 9 that meshes with the roll gear 27 is provided, the feed roll 7 can be easily inserted into and removed from the frame 4 together with the feed roll cassette 44, and the feed roll 7 can be easily inserted into and removed from the frame 4, and the feed roll 7 can be easily inserted into and removed from the frame 4. Payout roll cassette 4 with rolls 7
By preparing many types of 4, one seed sowing machine 1 can be used for row sowing, spot sowing, etc.
It can increase versatility and reduce equipment costs.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a sectional front view, FIG. 2 is a sectional side view, FIG. 3 is a plan view of a feeding roll cassette, and FIG. 4 is a front view of the feeding roll cassette. FIG. 5 is a rear view of the first transmission means, FIG. 6 is a front view of the second transmission means, and FIG. 7 is a sectional view taken along the line -- in FIG. DESCRIPTION OF SYMBOLS 1...Seeding machine, 5...Hopper, 6...Feeding mechanism, 7...Feeding roll, 7a...Outer peripheral surface, 7b...
...Feeding recess, 8...Transfer mechanism, 9...Drive mechanism,
11... Support frame, 13... Seedling box, 16... Seed rice, 18... Seed storage section, 19... Feeding brush,
20...Fixed brush, 22...Adjustment brush, 26
...Cassette case, 27...Roll gear, 29
...Roll shaft, 33...Guide member, 44...Feeding roll cassette, 88...Meshing gear.

Claims (1)

[Claims] 1. Support frame 1 of transfer mechanism 8 for transferring seedling growing box 13
The seeding machine frame 4 is mounted on 1, and this frame 4
The hopper 5 is attached to the frame 4, and a drive mechanism 9 is disposed inside the frame 4, and a feed roll is driven by the drive mechanism 9 to feed the seed rice 16 received from the hopper 5 into the seedling box 13 passing below. 7, the feed roll 7 has a roll gear 27 on the side and connects to a cassette case 26 via a roll shaft 29.
This cassette case 26 is rotatably supported by
is removably inserted into and fixed to the frame 4 attached to the support frame 11 from one side thereof, and the frame 4 is provided with a gear 88 of the drive mechanism 9 that meshes with the inserted roll gear 27. A seeding seeding machine for raising seedlings.