JPS6325827B2 - - Google Patents

Description

[Detailed Description of the Invention] Conventionally, a sorting cylinder having a large number of depressions formed in its inner peripheral surface and one end of which is a supply side for grains to be sorted is rotatably installed horizontally, and the depressions are formed in the sorting cylinder. In a rotary sorting machine equipped with a receiving gutter to take out the sorted grains scooped up by As a result, the grains to be sorted accumulate on this supply side and become bulky, and gradually spread out until the layer becomes constant and the sorting action by the sorting cylinder becomes normal.

However, as mentioned above, since the grains to be sorted are bulky on the supply side, the scooping action accompanying the rotation of the sorting cylinder becomes vigorous, and foreign particles are also collected on the receiving side of the sorted grains in the receiving gutter. The purity of the sorting was reduced by flowing down the surface of the extension and entering the receiving trough, and due to such an adverse effect at the beginning of the sorting.

Therefore, in the present invention, the receiving side extension part of the receiving gutter on the supply side of the grains to be sorted is formed with a receding part by increasing the upright angle of the appropriate width part, so that the receiving gutter can receive the sorted grains that are scooped up. The object of this invention is to solve the above-mentioned drawbacks of the conventional method by arranging the structure so that the timing is delayed relative to other parts.

Hereinafter, this will be explained with reference to an embodiment drawing, but in this embodiment drawing, the receiving side extension part 1 that is integrally constructed with the receiving side plate 3 of the receiving gutter 2 is omitted. , the lower end is pivoted at the upper end of the receiving side plate 3 so that the standing posture can be changed, and the explanation of the operation in the text will be based on mixed grains of paddy and brown rice as grains to be sorted.

Therefore, 4 is a sorting cylinder with a large number of depressions formed on its inner circumferential surface, and rolling wheels 5, which are rotated by an appropriate drive device,
6 in a substantially horizontal position, with one end serving as a supply side X for mixed grains and the other end serving as a discharge side Y.

Reference numeral 2 denotes a receiving gutter which is installed in the lower part of the sorting cylinder 4 over the entire width of the cylinder 4, and has a built-in screw conveyor 7 for taking out the sorted rice. Reference numerals 3 and 8 denote a receiving side plate and a receiving collecting plate extending diagonally upward from the receiving gutter 2, respectively. The receiving side extension part 1 has a receding part M formed by retracting an appropriate width L part on the supply side X of the mixed grains so that the upright angle is larger than that of other parts. Reference numeral 9 denotes a lever for changing and adjusting the standing posture of the receiving side extension part 1. The base end is fixed to a shaft 10 fixed to the lower edge of the extension part 1, and the upper end is attached to a spring seat 12 provided on the machine wall 11 with a spring. The pin 14 pressed by the pin 13 allows appropriate positioning.

In addition, 15 is a mixed grain tank, 16 is a take-out gutter for brown rice, and 17 is a drain gutter for paddy containing some brown rice.

Therefore, if the wheels 5 and 6 are rotated by a suitable drive device, the sorting cylinder 4 will be rotated at a low speed in the direction shown by the arrow in FIG. 2, and the screw conveyor 7 will also be rotated at the same time. Operate the lever 9 to set the receiving side extension part 1 to an appropriate standing position, and now open the mixed grain tank 15.
When the mixed grains, which are sequentially introduced into the filter, continuously flow into the supply side X of the sorting cylinder 4, as shown in FIG. While flowing to the right on the top, it becomes stagnant and becomes bulky, and the scooping action along the inner circumferential surface of the sorting cylinder 4 becomes more vigorous for both brown rice and paddy than during normal sorting action. It is carried upward and falls in the retreating part M formed on the supply side X of the receiving side extension part 1 as shown by the arrow B, and again follows the process of rising along the inner circumferential surface of the sorting cylinder 4. be.

On the other hand, the brown rice is directly scooped up by the effect of the depression on the inner circumferential surface and falls onto the receiving side plate 3 or the receiving collecting plate 8 in a circular arc as shown by arrow C. At the beginning of the sorting action, the mixed grains that have flowed into the sorting cylinder 4 exhibit a bulky state on the right side, but as they gradually expand and reach the discharge side Y, the paddy floats onto the brown rice layer. During the initial stage of the sorting operation, the brown rice falls onto the receiving side plate 3 or the receiving collecting plate 8 and the receiving gutter 2.
They join together inside and are taken out of the machine from the takeout gutter 16.

In addition, while the paddy repeats the flow process of rising and falling within the sorting cylinder 4, it moves to the discharge side Y, and along with some brown rice that was not scooped up into the receiving trough 2, it is transferred to the discharge trough 1.
7.

In this case, the scooping action by the sorting cylinder 4 changes due to an increase or decrease in the amount of mixed grains continuously flowing in from the mixed grain tank 15, differences in shape due to different types of grains, size of grain shapes, etc. Some of the paddy may flow into the receiving trough 2, or conversely, brown rice does not enter the receiving trough 2 and repeats the upward and downward flow process in the sorting cylinder 4 together with the paddy and is received. When the side extension part 1 no longer fulfills its role, the lever 9 is operated to correct the upright angle of the receiving side extension part 1, and by changing its posture, the sorting purity can be increased and the sorting action with good sorting efficiency can be achieved. It can be done.

As described above, the present invention includes a sorting cylinder having a large number of depressions formed on its inner circumferential surface, one end of which is a supply side for grains to be sorted, and horizontally installed in a rotatable manner. In a rotary sorting machine equipped with a receiving gutter for taking out sorted grains that have been scooped up, the upright angle of the receiving side extension of the receiving gutter on the supply side of the grains to be sorted is increased to form a retreating part, and a recess is formed. Since the structure is configured to delay the receiving action of the scooped-up sorted grains into the receiving gutter, when the mixed grains are continuously fed into the sorting cylinder, this is caused by the bulkiness of the mixed grains being on the right side on the supply side. Despite the vigorous scooping action of the sorting cylinder, the paddy is returned through the retreating section and the sorting process is repeated. Furthermore, immediately after the mixed grains are introduced into the supply side, the floating of the paddy above the brown rice layer is not sufficient, and the paddy is carried quite upwards along with the scooped up brown rice. This eliminates the drawbacks in the early stages of sorting as described at the beginning, and has the effect of increasing sorting purity and efficiency.

In addition, although the configuration has been described in which the sorting cylinder is rotated at a low speed in a substantially horizontal position, the bulky state of mixed grains on the supply side can be resolved by setting the supply side to be high and the discharge side to be in a low and inclined position. Therefore, the application of the present invention is effective.

In addition, although the retracting part has been described as being formed on the supply side of the receiving side extension part, this retracting part and other parts of the receiving side extension part are separate bodies, and their standing postures are changed by levers, respectively. By adjusting the delay of P, it is possible to further respond to changes in the situation of mixed grains.

[Brief explanation of the drawing]

The figures are examples of the present invention. Figure 1 is an overall side view showing the inside, Figure 2 is a vertical side view taken along line A-B in Figure 1, and Figure 3 is the main part seen from the gutter side. The perspective view of FIG. 4 is a partially enlarged view for illustrative purposes. 1... Receiving side extension part, 2... Receiving gutter, 4... Sorting cylinder, M... Retreating part.

Claims (1)

[Scope of Claims] 1. A sorting cylinder with a large number of depressions formed in its inner circumferential surface and one end of which is a supply side for grains to be sorted is rotatably installed horizontally, and a sorting cylinder is provided in the depressions inside the cylinder. In a rotary sorting machine equipped with a receiving gutter for taking out the sorted grains that have been scooped up, the upright angle of the receiving side extension of the receiving gutter on the supply side of the grains to be sorted is increased to form a retreating part, and a recess is formed. 1. A receiving-side extension part in a receiving gutter of a rotary sorting machine, characterized in that the receiving action of the sorted grains scooped up by the receiving gutter is delayed into the receiving gutter. 2. A receiving side extension part having a retreating part in a receiving gutter of a rotary sorting machine according to claim 1, wherein the receiving side extension part is configured to have a proximal end pivotally connected so that its upright posture can be changed and adjusted.