JPH044857Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a sorting machine in which rotating rollers are arranged along an endless belt inclined in the width direction, and the distance between the belt and the roller increases toward the tip. It is used for sorting the size of irregularly shaped vegetables such as potatoes, small potatoes, and bamboo shoots, as well as bulbs.

This type of sorting machine was developed by the applicant in Japanese Patent Application Laid-Open No. 60-44079.
This was proposed earlier as a No. 1, and by arranging rollers with the same diameter over the entire length in a V-shaped diameter, or by configuring the rollers to be tapered or stepped toward the tip, it is possible to improve the relationship between the belt and the belt. In addition to making the gap larger toward the tip, the belt applies a driving force to move it forward, and when the gap between the belt and roller becomes larger than the diameter of the object to be sorted, the object to be sorted falls. , the size of the objects to be sorted can be sorted.

In this sorting machine, the belt applies propulsion to the objects to be sorted, making it easy to sort cylindrical and spherical objects according to size, but because the cross-sectional shape of the roller is circular, The application of rotational force in a direction perpendicular to the direction of travel is insufficient, and when trying to sort out irregularly shaped items such as potatoes, these items keep moving forward in a slipping state while maintaining the attitude in which they were initially introduced. Therefore, there is an inconvenience that sorting cannot be performed accurately.

(Technical Problem) The present invention is a sorting machine in which rotating rollers are arranged along an endless belt inclined in the width direction, and the distance between the belt and roller increases toward the tip. The problem is to apply rotational force in the right angle direction.

(Technical means) The technical means for solving this technical problem is to make the cross section of the roller polygonal.

(Effect of technical means) The objects to be sorted are moved forward between the roller and the belt by the belt's propulsive force, but the rotating roller, which has a polygonal cross-section, separates a portion with a large cross-sectional diameter and a portion with a small cross-sectional diameter. collides with the objects to be sorted alternately, so the objects to be sorted are given rotational force even in a direction perpendicular to the direction of movement, and are moved forward while rolling in all directions on the gap formed between the belt and the rollers. It turns out.

(Effects of the present invention) As the objects to be sorted move forward while rolling under the rotational force of the rollers in a direction perpendicular to the direction of travel in addition to the rotational force of the belt in the horizontal direction, the objects to be sorted are always separated into different parts. This has the advantage that it faces the gap between the belt and the roller.

Therefore, the object to be sorted falls when the part smaller than the gap of the object to be sorted comes into view, so the object to be sorted is always sized based on the gap formed between the belt and the part of the roller with a larger cross-sectional diameter. It has the advantage of being selective.

(Example) Next, a specific example of the above technical means will be described with reference to the drawings.

The endless belt 1 is stretched between two rollers 3 and 4 that are pivotally supported by an inclined frame 2, and runs in the direction of arrow a by a drive device (not shown) while being inclined in the width direction.

The inclined frame 2 maintains its inclined state by having its lower part pivotally supported by a frame 5 and its back supported by a spiral rod 6. The other end of the spiral rod 6 is screwed into a nut 7 fixed to the frame 5, and by operating a handle 8 attached to the outside thereof, the spiral rod 6 can be attached to the inclined frame 5.
The inclination angle can be adjusted.

A square roller 11 is arranged along the belt 1 (in this embodiment, an octagonal cross section is used), and the roller 11 is rotated in the direction of arrow b by a drive device (not shown). There is.

Incidentally, reference numeral 10 is an object to be sorted, and 12 is a container for receiving the object to be sorted 10 which has been sorted by size and has fallen.

In this embodiment, the roll 11 has a uniform cross-section over its entire length, and is arranged so that the roll shaft and belt open toward the tip. You may do so.

Further, the portion of the roll 11 having a large cross-sectional diameter may be formed in a straight line as in the above embodiment, or may be formed in a spiral shape.

[Brief explanation of the drawing]

The drawings are for explaining specific examples of the above-mentioned technical means; Fig. 1 is a front view of the main parts of the sorting machine, and Fig. 2
The figure is a schematic plan view. 1... Endless belt, 11... Square roller.

Claims (1)

[Claims for Utility Model Registration] (1) In a sorting machine in which rotating rollers are arranged along an endless belt inclined in the width direction, and the distance between the belt and the roller increases toward the tip,
A sorting machine with a polygonal roller cross section. (2) The sorting machine according to claim 1, wherein the portion of the roller with a large cross-sectional diameter is spiral.