JPH02219509A - Seeding machine for raising seedling - Google Patents

Abstract

PURPOSE:To enable separation of rachis-branch-attached seed caught in a rotation brush by providing a separation sweeper and recovering box at the front side of seed delivery of rotation brush. CONSTITUTION:When a rachis-branch-attached seed is caught in a rotation brush 14 and a normal seed is brought up thereby, the normal seed is shaken down by a restriction sweeper 43. Since space of only one granule of seed is formed between projection arranged in a row, the restriction sweeper 43 shakes the normal seed down completely and returns the normal seed to seed guide part 32, without shaking down a rachis-branch-attached seed A' firmly twined to the brush. The rachis-branch-attached seed which passed through the control sweeper 43 is struck to separation sweeper 44 sliding to the rotation brush 14 at front side of seed delivery and shaken down and housed into a recovering box 44.

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) In a conventional seedling-raising seeding machine, a feeding roll is placed above a transfer mechanism for transferring seedling boxes, and a rotating brush that slides in contact with and rotates in the opposite direction is provided above the feeding roll. A seed guide section is formed closer to the front side of the seed dispensing roll for storing seeds together with the dispensing roll and guiding and supplying the seeds falling from the hopper to the dispensing roll, and the opening of the hopper is arranged above the seed guide section. There is.

(Problem to be solved by the invention) At this point, seed rice from which awns, ramus, etc. have been removed is used. It may be mixed.

In the conventional technology, the rotating brush is used to adjust the amount of seeds in the groove of the feed roll, but if there are seeds with stems, they get entangled with the brush and cannot be taken out, and the seeds fall into the groove of the feed roll after the rotating brush comes into contact with the brush. The rotary brush removes seeds that have fallen, that have been carried around to knock out regular seeds in the feed roll grooves, that have accumulated in large amounts in the seed guide, and that have been completely de-awned. Sometimes I lift it.

The present invention provides a detachment sweeper in sliding contact with the rotary brush on the front side of the rotary brush for discharging seeds, and detaches the seeds with stems that are caught in the rotary brush without having to carry them around once. The purpose of the present invention is to provide a seedling seeding sowing machine that can solve the above problems.

Furthermore, by providing a restriction sweeper on the front side of the rotary brush from which seeds are fed out, which has a large number of protrusions arranged side by side with a gap of about one seed, and making these protrusions slide into contact with the rotary brush, the rotary brush can be To provide a seedling-raising seeding machine capable of preventing normal seeds from being lifted up by seeds with stems entangled in the seedlings.

(Means for solving the problem) The first specific configuration for solving the problem in the present invention is as follows:
A feed roll 11 is arranged above the seedling raising box transfer mechanism 5, and a rotary brush 14 that slides in contact with and rotates in the opposite direction is provided above the feed roll 11, and the seeds fall from the hopper 12 toward the front side of the feed roll from the rotary brush 14. In a seedling seeding sowing machine that is formed with a seed guide section 32 that guides the seeds A to the feed roll 11 and stores them therein, on the seed feed front side of the rotary brush 14,
The second specific configuration is that a detachment sweeper 44 that makes sliding contact with the rotating brush 14 and detaches the seeds with stems A'' and a collection box 47 that collects the detached seeds is provided. A large number of protrusions 43a are provided on the front side of the seed feeding side with a gap B corresponding to approximately one seed in the axial direction of the rotating brush 14.
are arranged in parallel, and a restriction sweeper 43 is provided in which the protrusions 43a can be brought into sliding contact with the rotating brush 14.

(Function) When the feed roll 11 rotates, the seeds A in the seed guide section 32 enter the feed groove 11a, and other seeds are also moved to the rotating brush 14 side by being caught by the seeds A that have entered the groove 11a. The zero-rotation brush 14 slides on the surface of the feed roll 11 while rotating in the opposite direction, and when more than a predetermined amount of seeds are in the feed groove 11a, it pushes out the excess seeds and removes the seeds that have been brought around. Regulate movement.

When the rotary brush 14 catches the seeds with stems and the normal seeds are also lifted up, they are swept away by the restriction sweeper 43. The restriction sweeper 43 has a gap B for one seed formed between the juxtaposed protrusions 43a, so that the seed A with stems that is tightly entangled with the brush can be removed.
are not blown away, but normal seeds are almost completely blown off and returned to the seed guide section 32.

The seeds with branches and stems that have passed through the restriction sweeper 43 are brushed off by a breakaway sweeper 44 that is in sliding contact with the rotating brush 14 on the front side of seed delivery, and are stored in a collection box 44.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In Figs. 1 to 3, reference numeral 1 denotes a seeding machine, which is mounted on a device stand 2 together with a jonin machine and a irrigation machine to form a series of seeding machines. The device stand 2 has a pair of angle members 3 arranged in parallel, and supports a transfer mechanism 5 for the seedling raising box 4.

The transfer mechanism 5 includes a plurality of rotating shafts 6 supported on the angle member 3 at equal intervals in the longitudinal direction, rollers 7 provided on each of the rotating shafts 6 on which the seedling box 4 is mounted, and a roller 7 between the ends of each rotating shaft 6. It has a chain transmission means installed in the seedling box 4! 3! It can be continuously transferred in the direction of arrow 8 in FIG.

The seeding machine 1 has a frame 9 formed by a pair of left and right side plates 9a.
A feed roll 11 is rotatably supported in the center of the frame 9, a hopper 12 is fixed to the front upper part, and a drive device 13 for driving the transfer mechanism 5 is attached to the rear side.

A rotating brush 14 is arranged directly above the drive roll 11. This rotating brush 14 can be brought into sliding contact with the delivery roll 11, and is rotated in the opposite direction at the sliding contact position. The shaft 14a of the rotating brush 14 is pivotally supported by a swinging body 15, which has a midway portion supported by a support shaft 16, a rack portion 17 at its rear end, and is supported by a side plate 9a. By rotating the pinion 18, the rotating brush 14 is adjusted in distance relative to the feed roll 11, and
It is possible to adjust the amount of seed A that enters the feeding groove 11a of No. 1.

Gears 20.21 are provided on the shaft 11b of the feed roll 11 and the shaft 14a of the rotary brush 14, respectively, and each gear 20.21 is connected to a gear 23.2 provided on the intermediate shaft 22.
4, and the intermediate shaft 22 is provided with a sprocket 26 to which power is transmitted from the rotating shaft 6 via a chain transmission means 25.

The hopper 12 has a plurality of vertical walls 17 in its upper part, and the upper part is closed with M2R. The opening 12a at the bottom of the hopper 12 is located at the upper front away from the delivery roll 11, and the seeds A are guided by a guide plate 29 from the opening 12a to the delivery roll 11.

The guide plate 29 is formed in a cross-sectional shape, and its upper part is pivotally supported by a support shaft 30, and the feed roll 1 is attached to a horizontal lower wall 29a.
The cleaning brush 31 is in sliding contact with the cleaning brush 1, and the midway portion thereof is a guide wall 29b that is inclined downward toward the feeding roll 11 side.
Together with the feed roll 11, a seed guide section 32 is formed.

Seeds A falling and supplied from the opening 12a are collected in the seed guide section 32 and supplied to the groove 11a (or recess) of the feed roll 11.

The guide plate 29 is fixed to the side plate 9a by a set screw 33, and a circular groove 34 is formed in the side plate 9a so that the set screw 33 can be moved out of the side plate 9a. Guide plate 2
9 can rotate around the support shaft 30 to release the seeds A inside the seed guide section 32.

A flow rate regulator 36 is provided at an intermediate position between the opening 12a of the seed guide 32 and the feed roll 11.

The flow rate regulator 36 is attached to a support shaft 37 rotatably supported by the frame 9. An arm 38 is fixed to the outer end of the support shaft 37, and an arcuate groove 39 centered on the support shaft 37 is formed in the side plate 9a.
The arm 38 can be fixed and rotated relative to the side plate 9a by tightening or loosening a set screw 4o passing through the arm 38.

The flow rate regulator 36 is installed by loosening the setscrew 40 and forming the arcuate groove 39.
By rotating within the range, the distance to the guide plate 29 is changed, and the guide wall 29b of the guide plate 29 is moved from the opening 12a.
The amount of seeds stored in the seed guide part 32 is adjusted by restricting the movement of seeds A dropped along the line.

When the amount of seeds in the seed guide section 32 changes, the feeding groove 11a
Since the pressing force when the seeds A enter the container changes, the amount of seed feeding can be roughly adjusted.

The flow rate regulating body 36 is located away from the opening 12a, and therefore, a space enlarged portion 41 having a larger area than the opening 12a is formed between the flow regulating body 36 and the opening 12a. Prevents development and allows smooth flow. In this case, the opening 12a is essentially an opening between the lower end of the hopper 12 and the guide plate 29, and the weight of seeds in the hopper 12 is mainly supported by the guide plate 29, and the seeds protrude from the lower end of the hopper into a space. The seeds A that have reached the enlarged part 41 are moved to the flow rate regulator 3 in a state where the influence of the weight of the seeds from above is reduced.
At 6, flow 1ttJi is adjusted.

Reference numeral 42 denotes a peephole formed in the side plate 9a, which is closed with a transparent glass plate or plastic plate.
The working status of 6 can be visually observed.

A restriction sweeper 43 and a separation sweeper 44 are provided before and after the rotating brush 14. The restriction sweeper 43 is located on the front side, that is, on the side nearer to the seed delivery side, and its tip can come into sliding contact with the rotating brush 14. An arm 46 is fixed to the end of the shaft 45 to which the limit sweeper 43 is attached, and by rotating this arm 46, the amount of overlap of the limit sweeper 43 with respect to the rotating brush 14 is adjusted, and the limit sweeper 43 is moved away from the rotary brush 14. Ru.

The tip of the restriction sweeper 43 is formed in a serrated or wavy shape as shown in FIG. 2, and has a shape in which a large number of protrusions 43a are arranged in parallel with a gap B of approximately one seed in the axial direction of the rotating brush 14. It becomes. Therefore, when a seed A is entangled with the rotating brush 14, if it is a normal seed without a ramus, it will be easily blown off by the protrusion 43a and returned to the seed guide section 32, and if it is a seed Ao with a ramus. Even if it comes into contact with the protrusion 43a, the entanglement with the rotating brush 14 is strong, so it escapes to the gap B side and is carried around by the rotating brush 14 without being thrown off.

The detachment sweeper 44 is located on the rear upper side of the rotating brush 14, that is,
It is located above the front side of the seed feed and is fixed to the side plate 9a so as to be vertically adjustable. This breakaway sweeper 44
As shown in FIG. 3, the distal end thereof is linear and can be in sliding contact with the rotating brush 14, and the amount of overlap can be adjusted by adjusting the vertical position. This breakaway sweeper 4
4 overlaps with the rotating brush 14 more than the limit sweeper 43, and even the seeds A° can surely shake off the branches and stems tightly entangled with the rotating brush 14.

Incidentally, the tip of the detachment sweeper 44 may also be formed into a sawtooth shape, but the gap between the protrusions should be made smaller than one seed. Also,
The detachment sweeper 44 may also be supported by a shaft in the same way as the limit sweeper 43, and may be configured to rotate to adjust the amount of sliding contact with the rotating brush 14.

Reference numeral 47 is a collection box that stores the seeds A' with stems removed by the removal sweeper 44. This collection box 47 is supported by a stand 48 and an intermediate shaft 22 provided on the frame 9, and can be taken out from inside the frame 9 by rotating the cover 49 of the frame 9 around the bin 50. There is.

The collection box 47 has a chute 51 that protrudes forward and upward, and the chute 51 extends almost below the detachment sweeper 44 to collect the seeds A detached from the rotating brush 14 by the detachment sweeper 44.゛But Breakaway Sweeper 4
The receiver is formed so that it can be removed whether it is passed through the upper side or the lower side of 4.

Incidentally, by rotating the cover 49, it is possible to clean the paddy, sprouts, etc. attached to the sweepers 43 and 44. Also, Sweeper 43.4
By retracting the rotary brush 4 away from the rotary brush 14 when not in use, deformation of the tip of the rotary brush can be reduced.

In FIG. 1, reference numeral 53 denotes a feeding guide, which is attached to the frame 9 in order to prevent the seeds A from falling in close proximity to the feeding roll 11 on the front side of seed feeding, and 54 a scraper in the grooves of the feeding roll 11. It is inserted into a circumferential groove 55 formed in the circumferential direction across 11a, and 56 is a brush for cleaning the top surface of the seedling box 4.

(Effects of the Invention) According to the present invention described in detail above, since the detachment sweeper 44 and the recovery box 47 are provided on the front side of the rotary brush 14 from which seeds are fed out, the detachment sweeper 44 and the collection box 47 are used to sweep the rotary brush 10 away from the rotary brush 14.
It is possible to separate and collect the seeds A' with branches and stems that are entangled in the seed, and prevent the seeds A' with branches and stems from being sown and the rotating brush 14 being carried around and having an adverse effect on seed amount adjustment. It is possible to improve the sowing accuracy.

Further, a large number of protrusions 43a are arranged in parallel on the seed feeding front side of the rotary brush 14 with a gap B corresponding to approximately one seed in the axial direction of the rotary brush 14, and the protrusions 43a are connected to the rotary brush 1.
Since the restriction sweeper 43 that can be slid into contact with the rotary brush 14 is provided, the normal seeds that are caught and lifted by the rotary brush 14 can be brushed off without brushing off the seeds A with stems that are entangled with the rotating brush 14. It is possible to prevent even normal seeds from being collected in the collection box 47, and the seeds with stems in the seed guide section 32 are seeds A.

It is possible to prevent residue from remaining and stabilize the amount of sowing.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a front view in overall section, FIG. 2 is a perspective view of a restriction sweeper, and FIG. 3 is a perspective view of a breakaway sweeper. 1-- Seeding machine, 4-- Seedling raising box, 11-- Feeding roll, 12-- Hopper, 14-- Rotating brush, 32- Seed guide section, 43- Restriction sweeper, 43a- Protrusion, 44-
Breakaway sweeper, 47-collection box, A one seed, Ao.-seed with ramus, B-.-gap.

Claims (2)

[Claims] (1) The feeding roll (11) is placed above the seedling box transfer mechanism (5).
), and a rotating brush (14) that slides in contact with and rotates in the opposite direction is provided on the upper side of this feeding roll (11), and seeds ( A) In a seedling seeding seeding sowing machine that is formed with a seed guide section (32) for guiding and storing seeds to a feeding roll (11), the rotary brush (14) is in sliding contact with the seed feeding front side of the rotating brush (14). A seedling seeding sowing machine characterized by being provided with a detachment sweeper (44) for dislodging seeds with stems (A') and a collection box (47) for collecting the detached seeds. (2) A large number of protrusions (43a) are arranged in parallel on the seed-feeding front side of the rotating brush (14) with a gap (B) corresponding to approximately one seed in the axial direction of the rotating brush (14), And this protrusion (
2. The seedling-raising seeding machine according to claim 1, further comprising a restriction sweeper (43) whose portion (43a) can be brought into sliding contact with the rotating brush (14).