JPH022164Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The invention is used in a seeding device, in particular, in which a feed-out roll designed to feed out seeds is made to face above the discharge tube through a guide trough. This invention relates to a seeding device.

[Prior art]

The discharge tube in the above-mentioned conventional seeding device is always open so that seeds can freely fall.

[Problem that the invention attempts to solve]

In this type of machine, the seeds fed out from the feeding roll are not collected in the middle of the discharge tube, but are dispersed and dropped one by one in the front and back direction as the machine advances, resulting in a narrower seeding interval and, therefore, less growth. Sometimes they have poor ventilation and are susceptible to pests and diseases, resulting in defects such as poor yields.

The technical problem of the present invention is to allow the seeds to gather in the middle of the discharge tube and then drop them intermittently to widen the sowing interval, thereby ensuring good growth. Furthermore, the feed-out grooves of the feed-out roll are arranged in a staggered manner in two rows on the left and right, so that the seeding speed can be increased without increasing the rotational speed of the feed-out roll.

[Means for solving problems]

The seeding device according to the present invention, which was taken to solve the above problems, is as follows.

In a seeding machine that has a feed roll that feeds out seeds intermittently and faces above the discharge tube through a guide gutter, the feed grooves provided on the outer periphery of the feed roll are arranged in a staggered manner in two rows on the left and right. Below the roll, guide troughs are installed on the left and right in correspondence with the above-mentioned feeding groove rows, and between the guide trough and the discharge tube provided below,
The present invention is characterized in that a transport body is provided which collects and discharges seeds by alternately reciprocating between the left and right guide troughs and the discharge tube in conjunction with the rotation of the feed roll.

[Effect]

The seeds fed out from one of the feeding grooves of the feeding roll pass through the guide gutter below and are once collected in the holes of the transfer body, and as the transfer body moves, they fall all at once from the discharge tube and are sown. During this time, the seeds fed out from the other feeding groove pass through the guide gutter below and are once collected in the holes of the transfer body, and when the transfer body returns to its original position, they are separated from the previously sown seeds by a certain distance. and sown.

〔Example〕

One embodiment of the present invention will be described based on the drawings. 1 is a running body of a submerged soil seeding machine, with an engine 2 mounted in the front and a transmission case 3 in the center.
A wheel 4 is pivotally supported on both left and right sides of the machine so as to be movable up and down via a swing case 5, and consists of a tank 6 for storing seeds behind the wheel 4, a sowing drive mechanism 7 interlocked with the transmission case 3, etc. The seeding section 8 is attached, and a steering handle 9 is installed behind the seeding section 8, and a central float 10a is installed at the center of the machine below, and side floats 10b, 10b are installed at both sides.
is installed.

One tank 6 is provided on each side of the seeding drive mechanism 7, and two tanks 6 are provided below each tank 6.
There are four discharge pipes 11, that is, a four-row seeding device.

Reference numeral 12 denotes a feed roll facing the opening 6b at the end of the flow plate 6a of the tank 6, which is supported by a roll shaft 13 extending from the seeding drive mechanism 7 and rotated in the direction of the arrow in FIG. .

The outer periphery of the delivery roll 12 is provided with delivery grooves 12a and 12b arranged in a staggered manner in two rows on the left and right.

Guide troughs 14a and 14b are provided in parallel below the feed roll 12, and the left guide trough 14a corresponds to the groove row of the left feed groove 12a, and the right guide trough 14b corresponds to the groove row of the right feed groove 1b. It corresponds to the groove row of.

Then, a certain amount of seeds supplied from the opening 6b are passed through the feeding grooves of the feeding roll 12 to 12a, 12b, 12.
a... are received in order, and are fed out downward as the feeding roll 12 rotates, for example, into the left feeding groove 12.
The thing fed out from a is fed out into the left guide gutter 14a.

The guide troughs 14a and 14b each have a swash plate 1 below.
5a, 15b are provided, thereby providing a spacing between the lower openings 16a, 16b.

The discharge pipe 11 is provided below the swash plates 15a, 15b, that is, below the center between the openings 16a, 16b.
It faces the receiver tube 18 provided at 10b.

A transfer body 19 is provided between the guide troughs 14a, 14b and the discharge tube 11, and is supported by the support frame 17 and slides in conjunction with the rotation of the feed roll 12. One end of the transfer body 19 A sliding shaft 20 provided in the tank 6 is supported by a bracket 21 parallel to the roll shaft 13 and projecting downward from the tank 6 so as to be slidable in the axial direction.

The transfer body 19 has two transfer holes 19 for collecting and transferring the seeds fed out from the feed roll 12.
a, 19b are provided, and when the left transfer hole 19a is directly below the left opening 16a (at this time, the transfer hole 1
9a is in a bottomed state due to the support frame 17)
, the right transfer hole 19b is located above the discharge tube 11 (at this time, the transfer hole 19b is in a bottomless state),
Further, when the left transfer hole 19a is above the discharge tube 11, the right transfer hole 19b is configured to be located directly below the right opening 16b (at this time, the transfer hole 19b is in a bottomed state). has been done.

Reference numeral 22 denotes a return spring stretched between the end of the sliding shaft 20 and the support frame 17, which biases the transfer body 19 so that the transfer hole 19a is normally positioned below the opening 16a.

A camshaft 23 is provided to slide the transport body 19 left and right, and is arranged in a direction perpendicular to the roll shaft 13, and is constantly rotated by the power of the seeding drive mechanism 7. A cam 23a provided on the camshaft 23 is engaged with an engagement pin 20a protruding from the sliding shaft 20. Rotation of the cam 23a presses the engagement pin 20a, and the sliding shaft 20 returns to the spring 22. The left transfer hole 19a provided in the transfer body 19 moves from below the opening 16a to above the discharge tube 11 (the transfer hole 19b moves from above the discharge tube 11 to below the opening 16b). The cam 23a rotates further and the engagement pin 20a
When released from the transfer hole 19, the transfer body 19 returns to its original position due to the action of the return spring 22.
b is above the discharge tube 11 (the transfer hole 19a is the opening 16a)
downward).

The rotation ratio between the camshaft 23 and the feed roll 12 is as follows:
For each revolution of the camshaft 23, the feed roll 12 rotates at a ratio that is the reciprocal of the number of feed grooves (for example, 12a) on one side (1:1/3 in the case of this embodiment).
It's summery. Then, the transfer hole 19a is connected to the opening 16a.
The timing is configured such that the seeds fed out from the feeding groove 12a accumulate in the transfer hole 19b when the seed is located in the lower position.

24 is a groove piece provided at the lower front of the discharge tube 11;
Reference numeral 5 denotes a soil covering plate provided at the lower rear of the discharge pipe 11.

The present invention is constructed as described above, and the power transmitted from the transmission case 3 to the seeding drive mechanism 7 is transmitted to the roll shaft 13, and when the feed roll 12 rotates, the seeds in the tank 6 are transferred to the feed grooves 12a, 12.
b, 12a... are sequentially received and accommodated in a certain amount,
The material in the feed groove 12a is intermittently discharged into the guide gutter 14a, and the material in the feed groove 1b is intermittently discharged into the guide gutter 14b. The seeds fed out from the feeding groove 12a and discharged into the guide gutter 14a are transferred to the swash plate 1.
5a and fall into the transfer hole 19a of the transfer body 19, where they are once collected and stored.

Then, as the camshaft 23 rotates, the cam 23a
presses the engagement pin 20a of the sliding shaft 20, the transfer body 19 moves against the return spring 22, the transfer hole 19a moves above the discharge tube 11 (the transfer hole 19b is below the opening 16b), and once Stop here. At this time, the seeds collected in the transfer hole 19a fall all at once through the discharge pipe 11, are sown accurately and densely in the seeding groove formed by the groove cutting piece 24, and are sown on the soil covering plate 2.
Covered with soil by 5. In addition, during this time, the seeds fed out from the next feeding groove 12b and fed into the guide gutter 14b are guided by the swash plate 15b and fall into the transfer hole 19b, where they are once collected.

When the cam 23a disengages from the engagement pin 20a, the transfer body 19 returns to its original position due to the action of the return spring 22, and the transfer hole 19b is inserted into the discharge tube 11.
The seeds move upward (the transfer hole 19a moves below the opening 16a), and the seeds collected in the transfer hole 19b fall all at once through the discharge pipe 11, leaving a certain distance from the previously sown seeds. to be sown.

The above-mentioned delivery roll 12 is regulated to an upper limit in rotation speed because if the rotation speed is increased, seeds will be difficult to enter into the delivery groove due to centrifugal force, etc.
If many feeding grooves are provided in the same row, it becomes difficult to maintain a constant amount of seeds entering each groove.
The staggered two-row arrangement according to the present invention can increase the seeding speed without increasing the rotation of the feed roll 12.

[Effect of idea]

By providing a transfer body between the guide gutter and the discharge tube, and providing the transfer body with a shutter function to temporarily collect and store the seeds fed out from the feed roll, the seeds are not scattered widely and the sowing interval is widened. In addition, the feed grooves of the feed rolls are arranged in a staggered manner with two rows on the left and right, and the seeds fed from each row are discharged from one discharge tube by the reciprocating operation of the transfer body. This has effects such as increasing the seeding speed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side sectional view of the main parts, Figs. 2 and 3 are explanatory views of the operation, Fig. 4 is a plan view of the transport body, Figure 5 is a rear view of the submerged soil seeding machine, and Figure 6 is its side view. 11...Discharge pipe, 12...Feeding roll, 12
a, 12b... feeding groove, 14a, 14b... guide trough, 19... transfer body.

Claims (1)

[Scope of utility model registration request] In a seeding machine that has a feed roll that feeds out seeds intermittently and faces above the discharge tube through a guide gutter, the feed grooves provided on the outer periphery of the feed roll are arranged in a staggered manner in two rows on the left and right. Below the roll, guide troughs are installed on the left and right in correspondence with the above-mentioned feeding groove rows, and between the guide trough and the discharge tube provided below,
A seeding device characterized by being provided with a transfer body that collects and discharges seeds by alternately reciprocating between the left and right guide troughs and the discharge tube in conjunction with the rotation of the feed roll.