JPS6239617Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in the structure of a delivery roll in a fertilizer seeding machine, and an object of the invention is to enable accurate and easy adjustment of the reduction in delivery amount.

Normally, in a feeding roll, a female member and a male member are engaged with each other, and the length of the feeding groove formed in the female member is adjusted by sliding the male member in the axial direction.When reducing the feeding amount, In this case, the position of the male member is adjusted to the female member side to shorten the feeding groove.

However, since one end of this feeding groove is formed by the side wall of the female member, the seeds, fertilizer, etc. that are already in the feeding groove are pinched between the male member and the side wall and do not escape. Therefore, it becomes difficult to slide the male member to the required position, and in the case of sowing, the seeds may be damaged.

The present invention almost completely eliminates these conventional problems, and its features are as follows:
A feeding roll having a female feeding roll member fixed to a rotating shaft and having a feeding groove formed therein, and a male feeding roll member that is fitted onto the rotating shaft so as to be slidable in the axial direction and is in male-female engagement with the feeding groove. In this, a side wall forming an end of the feeding groove of the female member is provided with a discharge mechanism that discharges the material in the feeding groove by sliding the male member when adjusting the feeding amount reduction. At the point.

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

In the first embodiment shown in FIGS. 1 to 3,
1 is the casing of the fertilizer seeding machine, with hopper 2 on the top.
A removable lower hopper 3 is provided inside the hopper 3, and a rotating shaft 4 passes through the lower hopper 3 and is supported rotatably around a horizontal axis.

Both ends of the rotating shaft 4 protrude outward from the casing 1, and a sprocket 5 is provided at one end of the rotary shaft 4. A sprocket 5 is provided at one end of the rotary shaft 4, and driving force is supplied from a ground drive wheel or a drive device (not shown) provided in the fertilizing/seeding machine. communicated.

A disk 6 is fixed to the other end of the rotating shaft 4,
A cylindrical portion 7 is formed at the eccentric position. A lock pin 8 is inserted into this cylindrical portion 7 so as to be freely movable in the axial direction, and its large diameter end 8a can freely protrude from the disc 6 toward the casing 1 side, and its small diameter end 8b has a retaining pin 9 and a protrusion. Spring 10 that presses in the direction
and is provided. The retaining pin 9 engages with the engagement groove 11 of the cylindrical portion 7, and by pulling the lock pin 8 in the insertion direction and rotating it 90 degrees, it engages with the outer surface of the cylindrical portion 7, thereby maintaining the inserted state of the lock pin 8. It is configured so that it can be done.

Reference numeral 14 denotes an adjusting body rotatably fitted to the disc 6.
It has a disc part 15 facing the disc part 1.
5 is formed with a hole 16 that can engage with the large diameter end 8a of the lock pin 8. When the lock pin 8 protrudes, the hole 16 is formed in the adjuster 14.
When the lock pin 8 is inserted into the cylindrical portion 7, rotation is prevented.

Reference numeral 18 denotes a feed roll, which includes a female feed roll member 19 fixed to the rotating shaft 4, a male feed roll member 20 provided slidably in the axial direction on the rotating shaft 4, and a discharge mechanism provided at one end of the female member 19. 21.

The feeding roll male member 20 has a female threaded portion 22a inside.
A plurality of rod-shaped male parts 2 are attached to the end of the shaft part 22 formed with
3 are integrally molded, and the female screw portion 22a of the shaft portion 22 is screwed into the male screw portion 14a of the adjustment body 14, and the lock pin 8 is released and the adjustment body 14 is attached to the rotating shaft 4. By rotating, the male member 20 can be slid.

The female feed roll member 19 has a plurality of feed grooves 24 formed in the axial direction on the outer circumferential surface with which the rod-shaped male portion 23 engages, and one end of the feed groove 24 is formed with a side wall 25. The range within the feeding groove 24 separated by the end of the male part 23 is a feeding recess 26 for feeding out the material A such as seeds or fertilizer, and the position is adjusted by sliding the male member 20. This changes the range and allows the amount of feed to be adjusted.

The ejection mechanism 21 has a through hole 2 bored in the side wall 25.
7, a disc-shaped closing body 28 that contacts the outer surface of the side wall 25 and closes the through hole 27, a washer 29 fixed to the shaft portion 19a of the female member 19, and a washer 29 that fits onto the shaft portion 19a and closes the through hole 27. It has a spring 30 located between the body 28 and the washer 29, and the spring 30 always presses the closure body 28 against the side wall 25.

When adjusting the feeding amount, the adjustment body 14 is rotated and the male member 20 is slid in the direction of arrow B in FIG. 1 to reduce the length of the feeding recess 26. contains the drawn-out material A, so it will be compressed. When the compressive force becomes larger than the elastic force of the spring 30, the ejected object A pushes the closing body 28 against the spring 30, comes out from the through hole 27 to the outside of the wall 25, and falls.
The dispensed product A is discharged from the dispensed recess 26 by the amount that the dispensed recess 26 is reduced, so that the remaining dispensed product A is not damaged by compressive force.

Therefore, since only the repulsive force of the spring 30 is applied to the male member 20, sliding can be easily performed with a small force.

FIG. 4 shows a second embodiment of the present invention, which differs from the first embodiment only in the ejection mechanism. Ejection mechanism 33
The closing body 34 is made of an elastic material such as rubber or synthetic resin, and the closing body 34 is disc-shaped, and its inner circumferential portion is screwed into a male screw portion 35 formed on the shaft portion 19a. It is clamped between the side wall 25 and the side wall 25 by a nut 36 located therebetween. When the male member 20 is slid to reduce the volume of the dispensing recess 26, the dispensing material A comes out from the through hole 27 while pushing the closing body 34 and falls. As a result, a required amount of the dispensed material A remains in the dispensing recess 26.

Since the ejection mechanism 33 of this second embodiment has an elastic closing body 34 on one end side of the feeding groove 24, the male member 20
There is no damage even when the material is slid, and excess material A can be discharged.

According to the present invention described in detail above, the feeding roll 18
A discharge mechanism 33 is provided on the side wall 25 forming one end of the dispensing groove 24 in the female member 19, and when adjusting the dispensing amount reduction, the dispensing material A in the dispensing recess 26 can be discharged by the amount reduced. 20, there is no compression damage to the dispensed product A, there is no clogging of the dispensed product A in the dispensing recess 26, and the resistance applied to the sliding male member 21 is extremely small, making the sliding operation extremely easy, reliable, and accurate. It is possible to adjust the feed amount reduction.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a longitudinal sectional view of the main part, FIG. FIG. 4 is a sectional view showing the main parts of the second embodiment of the present invention. 4... Rotation shaft, 14... Adjustment body, 16... Hole,
18... Feeding roll, 19... Feeding roll female member, 20... Feeding roll male member, 21... Discharge mechanism, 24... Feeding groove, 25... Side wall, 26... Feeding recess, 27... Through hole , 28...Closed body, A...
...Features.

Claims (1)

[Scope of utility model registration request] A female payout roll member 19 is fixed to the rotating shaft 4 and has a payout groove 24 formed therein, and a male payout roll member is fitted onto the rotating shaft 4 so as to be slidable in the axial direction and is in male-female engagement with the payout groove 24. 20, the side wall 25 forming the end of the feeding groove 24 of the female member 19 has a side wall 25 that allows the male member 20 to slide in the feeding groove 24 when adjusting the feeding amount reduction. A structure of a feed roll of a fertilizing and seeding machine, characterized in that a discharge mechanism 21 for discharging material A is provided.