SU1630597A3 - Pneumatic sowing apparatus - Google Patents

Abstract

The subject of the invention is a device for stripping off excess seed grains from the sowing orifices of a vacuum-type seed drill, strippers with run-on faces being assigned to sowing orifices formed in a drill disc. In order to make the sowing uniform, according to the invention radial collecting chambers 9 for receiving the stripped-off seed grains 3 are provided between two respective run-on faces 8 succeeding one another. <IMAGE>

Description

&

(L

oh oo oh ate with j

cm

When the disk 5 rotates, the seeds are sucked to the holes 4 and carried to the seed zone0. Extra seeds are removed by the projections 8 of the dumper 2 If the seed is discarded

This invention relates to a vacuum sowing apparatus for universal. sebaceous for precision seeding ,,

The purpose of the invention is to improve the uniformity of seeding by improving the dropping of excess seeds.

FIG. 1 shows a side view of the apparatus proposed; on Fig - view A in Fig about 1 about

On the housing 1 of the vacuum apparatus there is a diverter 2 extra seeds 3 "For collecting the seeds there are suction holes 4 on a vertically rotating disk 5" The eraser 2 is fixed on the housing 1, for example, using a screw 6 without a head rotatably in the direction of the arrow B for of varying degrees of approximation to the holes 4 "Adjustment can be carried out by suitable means for this purpose (not shown), for example, by using an eccentric and" Before the operation of the dumper 2 can be adjusted for the most accurate Lying parallel to the surface of the disk 5 using the stops 7. The thickness T of the ejector 2 is larger than the intermediate space M between the wall of the housing 1 and the disk 50 The ejector 2 on its front side of the disk 5 has protrusions 8 that approach the holes 4 in the direction of rotation Arrow B. Between every two adjacent protrusions

8the groove 9 is located to trap the seeds of the seed so as to facilitate the slippage of the seed 3 into the radial groove

9 between the protrusion 8 of the dropper 2 and the radial groove 9, a rounded edge 10 is formed.

The device works as follows

When the disk 5 rotates in the direction of the arrow, the 4 seeds sucked to the holes 4 get closer to you

m moves along the protrusion 8, it slips into the groove 9, evades from the next seed, and after braking under the force of gravity, 1 h0n drops. f-ly, 2 or 0

five

0

five

0

. d "

35

50

55

The stupas 8 of the dumper 2, which is installed so that its last protrusion 8 is located close to a separate seed 3, but out of reachability, on the opening 40 In the case when several seeds 3 are sucked to the opening 4, any projection 8 removes unnecessary seed 3 so that it displaces a whole group of seeds sucked on hole 4, while unnecessary seeds 3 are knocked back or fall off. If the dropped seed moves along the protrusion 8, until the next seed 3, sucked on the adjacent hole 4, slides into the radial yellow ca. 9, the slope of a next seed 3 and after deceleration and velocity loss falls under gravity into a hopper (not shown) of

Claims (1)

Invention Formula 10 A pneumatic sowing machine, comprising a housing, a sowing disk with suction holes and a resetter of excess seeds with a working surface in the form of rounded protrusions located in the zone of the trajectory of the suction holes, with the aim of increasing uniformity seeding by improving the dropping of excess seeds, the ejector is made with a width greater than the distance between the wall of the housing and the disk, while between the neighboring projections of the ejector, the ejector side for collecting seeds but 20. An apparatus according to claim 1, characterized in that the ejector is mounted on the lid rotatably by means of a screw without a head. 1