JPH0614852Y2 - Sorting machine - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention relates to a sorting machine for simultaneously performing grain shape sorting and wind sorting of seeds of agricultural products, various grains and crushed industrial products. The present invention relates to a recovery control mechanism in a system for recovering semi-finished products.

For example, sorting machines for soybeans and the like mainly use a vibrating screen to sort out particles, and remove impurities such as coarse dust, pebbles, and sand to take out uniform-sized products. On the other hand, some soybeans are immature even though they have the same grain shape, and also have light dust and dirt. Therefore, there is a method in which suction type wind power sorting is simultaneously performed in the front stage and the rear stage of the above-mentioned sieve screen to remove light dust and immature substances and improve the product selection system.

Here, in natural grains and the like, there are those with a little small grain and those with a little chipped corner. If these variants are included in the product, the accuracy of the product is reduced, and it is desirable to sort and recover such variants as semi-finished products separately from the products.

(B) Conventional technology Therefore, regarding the conventional semi-finished product collection of the above sorting machine,
For example, there is the prior art of Japanese Utility Model Publication No. 58-4619.
Here, semi-finished products and contaminants are wind-selected at the product take-out port and guided to the diffusion chamber, where heavy products such as semi-finished products are allowed to naturally sink downward and discharged outside by a screw conveyor. On the other hand, it is disclosed that the collection control of the semi-finished products and the like is performed by changing the air volume and the like by a damper at the suction port of the exhaust fan.

(C) Problems to be Solved by the Invention In the above-described prior art, however, the opening area of the suction port of the exhaust fan is adjusted by the damper, which causes various problems. That is, the suction force of the exhaust fan is the most important for the recovery of the semi-finished product itself, and if the suction force is weakened, the recovery becomes impossible. Further, the exhaust fan is sometimes used for removing dust and the like in the front stage of the screen, and therefore, changing the suction force of the exhaust blower also affects the removal of dust and the like.

Therefore, it is desirable to control the recovery of the semi-finished products separately from the blower while the blower is driven at the rated drive.

The present invention has been made in view of the above circumstances, and a comparatively heavy object that has fallen in a wind force selection unit can be attracted without being affected by a wind force adjusting unit that adjusts the suction force of the wind force selection unit. The objective is to collect semi-finished products with high accuracy by further appropriately selecting and collecting the products by independently controlling them.

(D) Means for Solving Problems In order to achieve the above-mentioned object, the sorting machine of the present invention has a grain shape sorting section by a sieve and a wind force sorting section by suction of a blower, and In a sorting machine that wind-sorts semi-finished products and the like and collects them in a separation chamber, a discharge means for semi-finished products from the separation chamber is connected at one end to an intake passage between a wind-power control means of the wind-sorting machine and a blower. The semi-finished product outlet is connected to the other end of the duct, and the duct is provided with wind force adjusting means.

(E) Action Based on the above configuration, the semi-finished products collected in the separation chamber are put into the duct where they are extracted by the discharging means and the wind is sorted, and the collection accuracy is freely adjusted by the air volume adjusting means. Thus, it becomes possible to take out the semi-finished products with high accuracy without affecting the wind force selection by the wind force adjusting means such as the main damper.

(F) Embodiment An embodiment of the present invention will be described below with reference to the drawings. Referring to FIG. 1 and FIG. 2, the sorter of the present invention is described. Reference numeral 1 is a sorter main body, and a lower framed frame 2
The part is the grain shape selection part 3 by the screen, and the frame 2
The part of the housing 4 mounted on the above is a wind force selection unit 5.

The material selection hopper 10 and the suction type blower 11 are mounted on the casing 4 of the wind force selection unit 5. The hopper 10 communicates with a raw material supply unit 15 having a guide 12, a gap adjusting shutter 13 and a rotary feeder 14 inside the housing 4, and is guided downward by a passage 16 from the supply unit 15. A dust removal passage 20 branched from the passage 16 by a partition 17 communicates with a flat separation chamber 18 directly below the blower 11a, and an air volume adjusting damper 19 is provided in the middle of the communication.
A semi-finished product and light foreign matter recovery passage 21 communicates with the passage 20 of the separation chamber 18, and the passage 21 has a damper 22 and communicates with the product outlet 23 through the inside of the frame 2. A shutter 24 for adjusting a gap corresponding to the size of the product is provided in the middle of the frame 2. Separation room 1
A partition cylinder 25 is arranged directly below the blower 11 inside the partition 8, and a main damper 27 is provided inside the partition cylinder 25.

In the grain shape selection unit 3, the screens 31, 32, 33 are installed in the upper and lower three stages with inclination between the left and right side plates 30, and the screens 31, 32, 33 have fine meshes from the upper stage to the lower stage. . That is, the upper screen 31 is for removing coarse impurities, the middle screen 32 is for removing middle impurities, and the mesh is coarser than the product, and the lower screen 33 is finer than the product and removes small contaminants such as pebble sand. However, the product is designed to be captured and transported. Under the bottom plate 45 arranged below the screens 31 and 32 and directly below the screen 33, foreign matter discharge troughs 34, 35 and 36 are mounted at right angles.

The sieve device 37 is oscillatably suspended on the frame 2 by front and rear leaf springs 38, the upper portion of the upper screen 31 communicates with the passage 16 by a guide 39, and the lower screen 33 communicates with the product outlet 23. Further, a bracket 41 in the middle of the side plate 30 is connected to an eccentric crank mechanism 40, and the crank mechanism 40 is configured to be transmitted to a vibration motor 44 via a belt 42 and a pulley 43 so that the entire frie device 37 vibrates back and forth. Has become.

On the other hand, as a semi-finished product recovery system path, a semi-finished product and a light foreign matter discharge gutter 50 are mounted at a right angle across the side plates 30 on the side of the sieve device 37 directly below the center of the separation chamber 18 and are separated from each other. Gutter 50 is a rotary valve 51, canvas 5
5, the semi-finished product and the light contaminants are communicated with each other while maintaining the airtightness. In addition, the partition cylinder 25 of the separation chamber 18
A control duct 52 is bent at a right angle and is taken out from the intake passage between the blower 11 side in FIG. 1, that is, between the main damper 27 and the blower 11, and this duct 52 has a damper 53 and communicates with the outlet of the gutter 50. A semi-finished product outlet 54 opens at the lower end of the duct 52.

Next, the operation of the sorting machine having the above configuration will be described.

First, when the blower 11 of the wind force selection unit 5 is driven, suction is performed in the passages 20 and 21 through the separation chamber 18, and the air volume and suction force in this case are adjusted by the dampers 27, 19 and 22. At the same time, suction also acts on the duct 52, and this suction state is adjusted only by the damper 53, so that the wind power can be selected. On the other hand, when the motor 44 of the grain shape selecting unit 3 is driven, the crank mechanism 40 vibrates the sieving device 37 back and forth to enable grain shape selection.

Therefore, when a raw material such as soybean is fed from the hopper 10,
A uniform amount is supplied in the width direction by the supply unit 15 and a fixed amount is supplied.
Dust and the like are sucked and removed through the passage 20 in the process of flowing down 6. The raw material in the passage 16 is guided by the guide 39 to a high place of the upper screen of the screening device 37,
The screen 31 captures coarse foreign matters, and other matters pass downward. The contaminants captured by the screen 31 move downward due to vibration and enter the trough 34, and inside the trough 34, the contaminants are also guided by the inclined bottom due to the vibration and are moved in one longitudinal direction to be discharged. Similarly, the foreign matter is removed by the middle screen sluice screen 32 and the gutter 35. Further, small impurities pass through the lower screening screen 33 and are discharged by the bottom plate 45 and the gutter 36. In this way, the products and semi-finished products are captured and sorted by the screen 33 and transferred to the product outlet 23. To do.

Products that naturally fall at the take-out port 23 are air-sorted by the suction action of the passage 21, and small semi-finished products and light contaminants such as shells and immature products are passed through the passage 21 to the separation chamber 18. Be recovered. The collection state in this case is adjusted according to the air volume of the damper 22. The semi-finished products and contaminants collected in the separation chamber 18 are naturally dropped and accumulated, and are fixedly flown downward by the rotary valve 51 into the gutter 50. Here, since the gutter 50 is attached to the screening device 37 and vibrates, the semi-finished products and the like inside the gutter 50 are guided by the inclined bottom and sequentially move toward the one duct 52 in the longitudinal direction to flow into the duct 52. Wind power is sorted. Therefore, even if the shapes are substantially the same, the immature matter and the lighter impurities than the mature matter are sucked and removed by the duct 52, and only the semi-finished product of the mature matter falls and is taken out from the take-out port 54. In this case, if the air volume is increased by the damper 53, the taking-out of the semi-finished product is carefully selected, and thus the semi-finished product taking-out state is adjusted only by the damper 53.

The control of the semi-finished product removal may be performed by supplying the secondary air instead of the damper 53. The semi-finished product can be conveyed in the gutter 50 by using a screw conveyor.

(G) Effect of the invention As described above, according to the present invention, a modified product such as a slightly small grain product or a product having a little chipped corner is separated from a product as a semi-finished product, and only the semi-finished product is separated. Since the products can be sorted and collected, the accuracy of the products can be improved, and the semi-finished products can be independently used, so that the utilization rate of products such as natural products can be increased.

Further, since the duct for semi-finished product selection is connected to the air intake passage between the wind force adjusting means of the wind force selection unit and the blower, there is no influence of the wind force adjustment related to the separation of the objects to be sorted which have been subjected to the grain shape selection. , It is possible to independently adjust the wind power for sorting semi-finished products, easily and freely adjust the precision of collecting semi-finished products, and even if the wind force adjusting means for collecting semi-finished products is adjusted, By this, there is no great influence on the wind power selection of the wind power selection unit, and it is possible to maintain the accuracy of separation of the products subjected to the grain shape selection.

Further, since the semi-finished products are sorted by the wind force sorting by suction of the blower, the structure is simplified and the adjustment is easy.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a sorting machine of the present invention, and FIG. 2 is a front view of the same. 3 ... Grain shape sorting unit, 5 ... Wind power sorting unit, 11 ... Blower, 18 ... Separation chamber, 27 (22, 19) ... Wind power adjusting means (damper), 37 ... Discharging means (gutter), 51 ... Rotary valve, 52 ... Duct,
53 ... Wind force adjusting means (damper), 54 ... Semi-finished product outlet.

Claims (1)

[Scope of utility model registration request] 1. A sorting machine comprising a grain shape sorting section using a sieve and a wind force sorting section using a suction of a blower, for sorting semi-finished products from the grain shape sorted products by wind force and collecting them in a separation chamber, Wind force adjusting means for adjusting the suction force of the wind force selecting section is disposed between the wind force selecting section and the blower, discharge means for semi-finished products from the separation chamber, and one end of the wind force adjusting means and the blower. And a duct having a semi-finished product outlet opening at the other end, which is in communication with an intake path between the air-conditioning means and the duct.