JP2020058958A - Particulate matter sorting device, grain size sorter and optical sorter - Google Patents

Abstract

To provide a grain size sorter and an optical sorter mutually attachable/detachable.SOLUTION: A particulate matter sorting device is equipped with a grain size sorter sorting particulate matter in response to the grain size of the supplied particulate matter and an optical sorter optically sorting the particulate matter supplied from the grain size sorter. The grain size sorter has a first attachment/detachment mechanism for attaching/detaching the optical sorter. The optical sorter has a second attachment/detachment mechanism for attaching/detaching the grain size sorter.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a granular material sorting device, a particle size sorting machine, and an optical sorting machine.

  There is known a grain sorting apparatus in which a grain size sorting machine and an optical sorting machine are unitized. For example, in the grain sorting apparatus described in Patent Document 1 below, the grain size sorting machine sorts the grain into good products and defective products according to the grain size of the grain. The grain selected as a good product by the particle size sorter is supplied to the optical sorter. The optical sorter optically sorts grains into good products and defective products. By unitizing the particle size sorter and the optical sorter, it is possible to reduce the overall size and cost, and prevent dust from entering the inside of the device.

JP, 2010-142678, A

  In the above-mentioned grain sorter, the grain size sorter and the optical sorter are unitized, so when the user of this grain sorter already owns either the grain size sorter or the optical sorter. The one sorter is wasted. Also, depending on the state of the grain, it may not be desirable to treat with both a particle size sorter and an optical sorter. Such a problem is not limited to the grain sorting device, but is common to the granular substance sorting device including the particle size sorting device and the optical sorting device.

  This type of sorter is often installed in the workshop of a farmer or the like, and the installation surface of the sorter is not always flat. For this reason, it is desirable to be able to install properly even if there is some unevenness.

  The present invention has been made to solve at least a part of the problems described above, and can be realized, for example, in the following modes.

  According to the first aspect of the present invention, a granular material sorting device is provided. This granular material sorting apparatus, a particle size sorting machine that sorts the granular material according to the particle size of the supplied granular material, an optical sorting machine that optically sorts the granular material supplied from the particle size sorting machine, Equipped with. The particle size sorter has a first attaching / detaching mechanism for attaching / detaching to / from the optical sorter. The optical sorter has a second attaching / detaching mechanism for attaching / detaching to / from the particle size sorter. The particle size sorter and the optical sorter are configured to be detachable from each other by the first attachment / detachment mechanism and the second attachment / detachment mechanism.

  According to such a granular material sorting apparatus, the particle size sorting machine and the optical sorting machine are configured to be detachable from each other by the first mounting / demounting mechanism of the particle size sorting machine and the second mounting / demounting mechanism of the optical sorting machine. Therefore, depending on the situation, only one of the particle size sorter and the optical sorter can be used, or the particle size sorter and the optical sorter can be used in combination.

  According to the second aspect of the present invention, in the first aspect, the particle size sorter has an outlet for discharging the particulate matter to the optical sorter. The optical sorter matches the receiving port that receives the particulate matter discharged from the particle size sorter with the installation height of the discharge port and the receiving height when the particle size sorter is attached to the optical sorter. And a height adjusting portion. According to this aspect, since the installation height of the discharge port and the installation height of the reception port are matched with each other by the height adjusting portion, it is possible to smoothly flow the granular material between the particle size sorter and the optical sorter.

  According to the third mode of the present invention, in the second mode, the height adjusting section has a supporting section that is provided above the lower end of the optical sorting machine and supports at least a part of the particle size sorting machine. According to this configuration, by supporting a part of the particle size sorter on the support part, the installation height of the discharge port and the installation height of the reception port are matched with each other with the support part above the lower end of the optical sorter as a reference. be able to. That is, the installation height of the discharge port and the installation height of the receiving port can be matched above the installation surface of the granular material sorting device without depending on the installation surface. Therefore, even if the installation surface of the granular material sorting device has irregularities, the granular material can be smoothly flowed between the particle size sorting machine and the optical sorting machine.

  According to a fourth aspect of the present invention, in the third aspect, the particle size sorter has a first wheel movably supporting the particle size sorter. The support part has a wheel mounting base on which the first wheel is mounted. The wheel mounting base is arranged at a position where the installation height of the discharge port and the installation height of the receiving port match when the particle size sorter is attached to the optical sorter with the first wheel placed. There is. According to this aspect, the installation height of the discharge port and the installation height of the receiving port can be easily matched with each other only by mounting the first wheel on the wheel mounting table.

  According to a fifth aspect of the present invention, in the fourth aspect, in the particle size sorter, the second wheel provided on the opposite side of the first wheel from the optical sorter and the first wheel are mounted on the wheel. A wheel lowering mechanism for lowering the second wheel and a lock mechanism for fixing the position of the second wheel when the opposite side of the particle size sorter from the optical sorter is lifted while being placed on a stand. And. According to this mode, when the particle size sorter is attached to the optical sorter, the lowered second wheel can support the load of the particle size sorter.

  According to a sixth aspect of the present invention, in the second aspect, the particle size selector has a taper pin. The height matching part has a positioning hole formed in the surface of the optical sorter to which the particle size sorter is attached. The positioning hole is arranged at a position where the installation height of the discharge port and the installation height of the receiving port match when the particle size selector is attached to the optical selector with the taper pin inserted. According to this aspect, the installation height of the discharge port and the installation height of the receiving port can be easily matched with each other by simply inserting the taper pin into the positioning hole.

  According to a seventh aspect of the present invention, in the second aspect, the particle size selector has a positioning hole. The height matching part has a taper pin formed on the surface of the optical sorter to which the particle size sorter is attached. The taper pin is arranged at a position where the installation height of the discharge port and the installation height of the receiving port match when the particle size sorter is attached to the optical sorter while being inserted into the positioning hole. According to this mode, the installation height of the discharge port and the installation height of the receiving port can be easily matched with each other by simply inserting the taper pin into the positioning hole.

  According to the eighth aspect of the present invention, in any one of the first to seventh aspects, the optical sorter has a non-defective product outlet for discharging the particulate matter selected as non-defective in the optical sorter. The non-defective product outlet opens downward and is provided at a position higher than the height of the particle size sorter. According to this aspect, when packing the granular material sorting device, by arranging the particle size sorting device below the non-defective product discharge port of the optical sorting machine, the space below the non-defective product discharging port is stored in the particle size sorter. It can be used as a space. Therefore, the granular material sorting device can be packed compactly.

  According to a ninth aspect of the present invention, a particle size sorter is provided. The particle size selector selects the particles according to the particle size of the supplied particles. Further, this particle size sorter includes an attachment / detachment mechanism for attaching / detaching to / from an optical sorter that optically sorts the supplied granular material. According to this aspect, the particle size sorter can be attached to and detached from the optical sorter by the attachment / detachment mechanism depending on the situation.

  According to a tenth aspect of the present invention, an optical sorter is provided. This optical sorter optically sorts the supplied granular material. Further, this optical sorting machine is provided with a mounting / dismounting mechanism for mounting / dismounting with the particle size sorting machine for sorting the granular material according to the particle diameter of the supplied granular material. According to this aspect, the attachment / detachment mechanism allows the optical sorter to be attached / detached to / from the particle size sorter depending on the situation.

It is a side view showing a granular material sorting device by one embodiment of the present invention. It is a perspective view which shows the particle size sorter shown in FIG. It is a perspective view which shows the optical sorter shown in FIG. It is explanatory drawing which shows the procedure which attaches a particle size sorter to the optical sorter shown in FIG. It is explanatory drawing which shows the wheel mounting base of the optical sorter shown in FIG. It is explanatory drawing which shows the wheel lowering mechanism and lock mechanism of the particle size sorter shown in FIG. It is explanatory drawing which shows the wheel lowering mechanism and lock mechanism of the particle size sorter shown in FIG.

  Hereinafter, a preferred embodiment of the granular material sorting apparatus according to the present invention will be described with reference to the drawings, and the same or corresponding portions in each drawing will be denoted by the same reference numerals.

  FIG. 1 is a side view showing a granular material sorting apparatus according to an embodiment of the present invention. In FIG. 1, the granular material sorting apparatus 100 includes a particle size sorting machine 10 and an optical sorting machine 20. The particle size selector 10 selects the granular material according to the particle diameter of the supplied granular material (for example, grain). The optical sorter 20 optically sorts the granular material supplied from the particle size sorter 10. The grain size sorter 10 targets brown rice, for example, and the optical sorter 20 targets brown rice and white rice, for example.

  FIG. 2 is a perspective view showing the particle size selector 10 shown in FIG. 1 and 2, the particle size selector 10 includes an inlet 11, a first outlet 12 (ejector), a first receiver 13, a front wheel 14 (first wheel), a rear wheel 15 (second wheel). And a mounting hole 16 (first attaching / detaching mechanism).

  FIG. 3 is a rear view showing the optical sorter 20 shown in FIG. In FIG. 1 and FIG. 3, the optical sorting machine 20 includes a second discharge port 21, a second receiving port 22 (receiving port), a wheel platform 23 (height adjusting part, a supporting part), a mounting bolt 24 (second attaching / detaching). Mechanism) and a non-defective product outlet 26.

  Hereinafter, the particle size selector 10 will be described. The particle size sorter 10 sorts the granular materials according to the particle diameter of the granular materials using a sorting mesh cylinder. Specifically, when the particulate matter is introduced into the introduction port 11 of the particle size sorting machine 10, the granular matter having a particle size of a predetermined value or more is sorted as a good product, and the good product is optically sorted from the first discharge port 12. It is discharged to the machine 20. Granules having a particle size smaller than a predetermined value are sorted as defective products.

  The first receiving port 13 receives the particulate matter that has been sorted as a defective product by the optical sorting machine 20 and discharged from the optical sorting machine 20. The granular material selected as defective by the particle size selector 10 and the granular material received by the first receiving port 13 are discharged together with the particle.

  The optical sorter 20 will be described below. The optical sorter 20 is a so-called chute type. For example, the particulate matter discharged from the first discharge port 12 of the particle size selector 10 and received by the second receiving port 22 and supplied onto the chute flows down on the chute and is a non-defective product when dropped from the chute. And the defective products are optically selected.

  Specifically, the optical sorter 20 includes a detector and an ejector nozzle. The detection unit irradiates the granular material dropped from the chute with visible light and near-infrared light, and detects reflected light or transmitted light emitted from the granular material. The detection unit determines, for each particle of the granular material, whether the sorting target object is a good product or a defective product, based on the image obtained from the detected light.

  The particulate matter judged to be defective is changed in its trajectory by the air ejected from the ejector nozzle, guided to the defective discharge gutter, and then discharged from the second discharge port 21 to the particle size selector 10. . On the other hand, the granular material determined to be a good product is guided to the good product discharge trough without changing the trajectory. The optical sorting machine 20 may discharge the particulate matter determined to be a defective product to the outside of the particle size sorting machine 10 without discharging it. In this case, the second outlet 21 of the optical sorter 20 and the first receiver 13 of the particle size sorter 10 are not used.

  The optical sorter 20 may be of any known type as long as it is a chute type. Further, for example, the granular material may be sorted into a good product, a defective product, and an intermediate quality product between the good product and the defective product. In this case, the intermediate quality product may be loaded into the optical sorting machine 20 again.

  The non-defective product guided to the non-defective product discharge gutter is put into a tank provided in the subsequent stage of the non-defective product discharge gutter. The non-defective product placed in the tank is appropriately cut out and weighed by the measuring unit, and then discharged from the non-defective product outlet 26. Here, the non-defective product outlet 26 is opened downward and is provided at a position higher than the height of the particle size selector 10. Accordingly, when the granular material sorting apparatus 100 is packed, the particle size sorting machine 10 is arranged below the non-defective product discharge port 26 of the optical sorting machine 20 to enable compact packing.

  The particle size sorter 10 and the optical sorter 20 are detachable from each other. Hereinafter, the procedure of attaching the particle size selector 10 to the optical selector 20 will be described with reference to FIG. First, the mounting bolt 24 (see FIG. 3) is removed. Next, the particle size sorter 10 is moved to near the optical sorter 20, and the front wheels 14 of the particle size sorter 10 are placed on the wheel mounting table 23 (details will be described later) of the optical sorter 20 (FIG. 4 left figure).

  Then, the rear wheel 15 side of the particle size selector 10 is lifted. At this time, the rear wheel 15 descends and comes into contact with the installation surface of the particulate matter sorting apparatus 100 by the wheel lowering mechanism 30 (details will be described later) of the particle size sorting machine 10. Further, the position of the lowered rear wheel 15 is fixed by the lock mechanism 40 (details will be described later) of the particle size selector 10 (center view of FIG. 4).

  Next, the mounting bolts 24 are fixed to the optical sorting machine 20 from the inside of the particle size sorting machine 10 through the mounting holes 16 (see FIG. 2) (right view of FIG. 4). Specifically, when the lid on the particle size selector 10 is removed and the selection mesh cylinder is pulled out, the inside of the particle size selector 10 is hollow. Therefore, a hand is put into this cavity, and the mounting bolt 24 is fixed while the particle size selector 10 is pressed against the optical selector 20. The mounting hole 16 is slightly elongated.

  As a result, the first outlet 12 and the second receiver 22 are connected to each other at the same installation height, and the second outlet 21 and the first receiver 13 are connected to each other at the same installation height. The particle size sorter 10 can be removed from the optical sorter 20 in the reverse order. The power of the particle size sorter 10 is supplied from a connector provided in the optical sorter 20 via a cable.

  FIG. 5: is explanatory drawing which shows the wheel mounting base 23 of the optical sorter 20 shown in FIG. In FIG. 5, the wheel mounting table 23 forms a part of a bottom surface member 25 that constitutes the bottom surface of the optical sorting machine 20. In addition, a reinforcing member (for example, a rib) for increasing strength is provided on the back surface of the wheel mounting table 23 so as not to be deformed even when the wheel is mounted.

  The wheel mount 23 is provided above the lower end of the optical sorter 20. Further, the wheel mounting table 23 has the installation height of the first discharge port 12 and the second receiving port 22 when the particle size selector 10 is attached to the optical sorter 20 with the front wheels 14 placed thereon. The installation height and the installation height of the second outlet 21 and the installation height of the first receiving opening 13 are arranged at the same position. That is, with the height of the wheel platform 23 as a reference, the first outlet 12 and the second receiver 22, and the second outlet 21 and the first receiver 13 are aligned in the height direction.

  6 and 7 are explanatory views showing the wheel lowering mechanism 30 and the lock mechanism 40 of the particle size selector 10 shown in FIG. 6 and 7, the front wheel 14 and the rear wheel 15 movably support the particle size selector 10. The front wheel 14 is one universal caster provided on the optical sorter 20 side, and the rear wheel 15 is two wheels mounted on both sides of one shaft. On the contrary, the front wheels 14 may be two wheels mounted on both sides of one shaft provided on the optical sorter 20 side, and the rear wheels 15 may be one universal caster.

  The wheel lowering mechanism 30 lowers the rear wheel 15 when the rear wheel 15 side of the particle size selector 10 is lifted while the front wheel 14 is placed on the wheel mounting table 23. The lock mechanism 40 fixes the position of the lowered rear wheel 15.

  The wheel lowering mechanism 30 is provided below the particle size selector 10. Further, the wheel lowering mechanism 30 is formed with an elongated hole 31 extending obliquely with respect to the vertical direction. The shaft 17 of the rear wheel 15 moves up and down in the elongated hole 31 between an upper position and a lower position. The lock mechanism 40 is attached to the wheel lowering mechanism 30. The lock mechanism 40 is attached to the wheel lowering mechanism 30 so as to be rotatable around a fulcrum 41. A notch 42 is formed in the lock mechanism 40.

  As shown in FIG. 6, when the particle size selector 10 moves in a self-sustaining manner, the front wheel 14 and the rear wheel 15 are in a state where the shaft 17 of the rear wheel 15 is in the upper position in the elongated hole 31, It contacts the installation surface of the particle size selector 10 indicated by the chain double-dashed line in the figure.

  On the other hand, as shown in FIG. 7, when the rear wheel 15 side of the particle size sorter 10 is lifted with the front wheel 14 placed on the wheel mounting table 23, the shaft 17 of the rear wheel 15 has a long hole due to its own weight. It descends to the lower position along 31 and only the rear wheel 15 contacts the installation surface of the particulate matter sorting apparatus 100 shown by the chain double-dashed line in the figure. At this time, by rotating the lock mechanism 40 and engaging the notch 42 with the shaft 17 of the rear wheel 15, the shaft 17 of the rear wheel 15 is fixed at the lower position.

  As described above, the particle size selector 10 has the first attaching / detaching mechanism (mounting hole 16) for attaching / detaching to / from the optical selector 20. The optical sorter 20 has a second attachment / detachment mechanism (attachment bolts 24) for attaching / detaching to / from the particle size selector 10. The particle size sorter 10 and the optical sorter 20 are configured to be detachable from each other by the first attachment / detachment mechanism and the second attachment / detachment mechanism.

  Therefore, the particle size sorter 10 and the optical sorter 20 can be attached to and detached from each other by the first attachment / detachment mechanism (mounting hole 16) of the particle size sorter 10 and the second detachable mechanism (mounting bolt 24) of the optical sorter 20. Is composed of. Therefore, depending on the situation, only one of the particle size sorter 10 and the optical sorter 20 can be used, or the particle size sorter 10 and the optical sorter 20 can be used in combination.

  Further, the particle size sorter 10 has a first discharge port 12 for discharging the particulate matter to the optical sorter 20. The optical sorting machine 20 has a second receiving port 22 for receiving the particulate matter discharged from the particle size sorting machine 10 and a first discharging port 12 when the particle size sorting machine 10 is attached to the optical sorting machine 20. And a height matching portion for matching the height with the installation height of the second receiving port 22. Therefore, since the installation height of the first discharge port 12 and the installation height of the second reception port 22 are matched by the height matching portion, the granular material is allowed to flow smoothly between the particle size sorter 10 and the optical sorter 20. be able to.

  Further, the height aligning portion has a support portion that is provided above the lower end of the optical sorting machine 20 and supports at least a part of the particle size sorting machine 10. According to this configuration, by supporting a part of the particle size sorter 10 on the support part, the installation height of the first outlet 12 and the second receiving position are set with reference to the support part above the lower end of the optical sorter 20. The installation height of the mouth 22 can be matched. That is, above the installation surface of the granular material sorting apparatus 100, the installation height of the first discharge port 12 and the installation height of the second reception port 22 can be matched without depending on the installation surface. Therefore, even if the installation surface of the particulate matter sorting apparatus 100 is uneven, the particulate matter can be smoothly flowed between the particle size sorting machine 10 and the optical sorting machine 20.

  The particle size selector 10 also has a front wheel 14 that movably supports the particle size selector 10. The support part has a wheel mount 23 on which the wheels 14 are mounted. The wheel mounting table 23 has a mounting height of the first discharge port 12 and a mounting height of the second receiving port 22 when the particle size classifier 10 is mounted on the optical classifier 20 with the front wheels 14 mounted thereon. It is placed in a position that matches with. Therefore, only by mounting the front wheels 14 on the wheel mounting table 23, it is possible to easily match the installation height of the first discharge port 12 and the installation height of the second receiving port 22 with the wheel mounting table 23 as a reference.

  Further, the particle size sorting machine 10 sorts the particle size with the rear wheel 15 provided on the opposite side of the front wheel 14 from the optical sorting machine 20 and the front wheel 14 mounted on the wheel mounting table 23. It has a wheel lowering mechanism 30 that lowers the rear wheels 15 when the side of the machine 10 opposite to the optical sorter 20 is lifted, and a lock mechanism 40 that fixes the position of the rear wheels 15 that have moved down. Therefore, when the particle size sorter 10 is attached to the optical sorter 20, the lowered rear wheel 15 can support the load of the particle size sorter 10.

  Although some embodiments of the present invention have been described above, the embodiments of the present invention described above are for the purpose of facilitating the understanding of the present invention and do not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention includes equivalents thereof. Further, in a range in which at least a part of the problems described above can be solved, or in a range in which at least a part of the effect is achieved, a combination of each component described in the claims and the specification, or omission is possible. .

  For example, the two rear wheels 15 of the particle size selector 10 may be attached to two shafts, respectively. In this case, the particle size selector 10 has two sets of the wheel lowering mechanism 30 and the lock mechanism 40.

  Further, for example, the lock mechanism 40 may be provided with a plurality of notches 42. In this case, the rear wheel 15 can be fixed at a plurality of positions without being limited to the upper position or the lower position in the elongated hole 31. Further, the particle size selector 10 may have at least only the front wheels 14 as wheels, and may have fixed legs whose length is adjustable, instead of the rear wheels 15. Further, the particle size sorter 10 can be used alone in a state where it is detached from the optical sorter 20.

  Instead of the wheel mounting table 23, the particle size selector 10 has a taper pin provided on the surface on the side of the optical classifier 20, and the optical selector 20 is positioned on the surface on the side of the particle size selector 10. It may have holes. At this time, the positioning hole constitutes a height matching portion that matches the installation height of the discharge port and the installation height of the receiving port of the particle size sorter 10 and the optical sorter 20.

  Here, the positioning hole has a height at which the first outlet 12 and a height at which the second receiver 22 are installed when the particle size sorter 10 is attached to the optical sorter 20 with the taper pin inserted. , And the installation height of the second outlet 21 and the installation height of the first receiving opening 13 are respectively arranged. Thereby, the height direction alignment of the 1st discharge outlet 12 and the 2nd receiving opening 22, and the 2nd discharge outlet 21 and the 1st receiving opening 13 can be easily performed only by inserting a taper pin into a positioning hole. it can. The taper pin may be provided in the optical sorter 20 and the positioning hole may be provided in the particle size sorter 10. Even in this case, the same effect can be obtained.

  The support portion is not limited to the wheel platform 23, and may be provided above the lower end of the optical sorter 20 and may have another configuration that supports at least a part of the particle size sorter 10. That is, by supporting a part of the particle size sorter 10 on the support part, the installation height of the discharge port and the installation height of the receiving port can be matched with each other with the support part as a reference. Further, the height adjusting portion may have another configuration as long as it matches the installation height of the discharge port with the installation height of the reception port.

  When the optical sorter 20 is used alone, a hopper is attached to the second receiving port 22 and a defective product ejecting nozzle is attached to the second ejecting port 21. When the granular material to be sorted is white rice, even if the white rice is put into the grain size sorting machine 10, all of it comes out as it is, and there is no point in sorting. Moreover, since the rice skin is damaged, a hopper and a defective product discharge nozzle are used in order to use the optical sorter 20 alone. On the other hand, when the grain to be sorted is brown rice, the particle size sorter 10 is attached to the optical sorter 20.

10 ... Particle size sorter 11 ... Input port 12 ... First discharge port 13 ... First receiving port 14 ... Front wheel 15 ... Rear wheel 16 ... Mounting hole 17 ... Shaft 20 ... Optical sorter 21 ... Second discharge port 22 ... Second 2 receiving port 23 ... wheel mounting base 24 ... mounting bolt 25 ... bottom member 26 ... non-defective product outlet 30 ... wheel lowering mechanism 31 ... elongated hole 40 ... locking mechanism 41 ... fulcrum 42 ... notch 100 ... granular material sorting device

Claims (10)

A granular material sorting device,
A particle size selector that selects the particles according to the particle size of the supplied particles,
An optical sorter that optically sorts the particulate matter supplied from the particle size sorter,
The particle size sorter has a first attachment / detachment mechanism for attachment / detachment with the optical sorter,
The optical sorter has a second attachment / detachment mechanism for attaching / detaching to / from the particle size sorter,
A granular material sorting apparatus in which the particle size sorter and the optical sorter are configured to be detachable from each other by the first attachment / detachment mechanism and the second attachment / detachment mechanism. The granular material selection device according to claim 1,
The particle size sorter has an outlet for discharging the particulate matter to the optical sorter,
The optical sorter,
A receiving port for receiving the particulate matter discharged from the particle size sorter,
A granular material sorting apparatus comprising: a height matching unit that matches the installation height of the discharge port and the installation height of the receiving port when the particle size sorter is attached to the optical sorter. The granular material sorting device according to claim 2,
The granular material sorting device, wherein the height adjusting portion has a supporting portion which is provided above a lower end of the optical sorting machine and supports at least a part of the particle size sorting machine. The granular material sorting apparatus according to claim 3,
The particle size sorter has a first wheel movably supporting the particle size sorter,
The support portion has a wheel mounting base on which the first wheel is mounted,
When the particle size sorter is attached to the optical sorter in a state where the first wheel is placed, the wheel mounting table has an installation height of the discharge port and an installation height of the receiving port. A granular material sorting device that is placed at a matching position. The granular material sorting apparatus according to claim 4,
The particle size sorter is
A second wheel provided on the opposite side of the first wheel from the optical sorter;
A wheel lowering mechanism that lowers the second wheel when the side opposite to the optical sorter of the particle size sorter is lifted in a state where the first wheel is placed on the wheel mount.
And a lock mechanism for fixing the position of the lowered second wheel. The granular material sorting device according to claim 2,
The particle size sorter has a taper pin,
The height matching part has a positioning hole formed in a surface of the optical sorter to which the particle size sorter is attached,
The positioning hole is arranged at a position where the installation height of the discharge port and the installation height of the receiving port match when the particle size sorter is attached to the optical sorter with the taper pin inserted. Granular sorting equipment. The granular material sorting device according to claim 2,
The particle size sorter has a positioning hole,
The height matching portion has a taper pin provided on a surface of the optical sorter to which the particle size sorter is attached,
The taper pin is arranged at a position where the installation height of the discharge port and the installation height of the receiving port are matched when the particle size sorter is attached to the optical sorter while being inserted into the positioning hole. Granular sorting equipment. The granular material sorting apparatus according to any one of claims 1 to 7,
The optical sorter has a non-defective product outlet for discharging the particulate matter selected as non-defective in the optical sorter,
The non-defective product outlet is opened downward and is provided at a position higher than the height of the particle size selector. A particle size sorter,
The particle size selector selects the particles according to the particle size of the supplied particles,
A particle size sorter comprising an optical sorter that optically sorts the supplied particulate matter and an attachment / detachment mechanism for attaching / detaching. An optical sorter,
The optical sorter optically sorts the supplied particulate matter,
An optical sorting machine comprising a particle size sorting machine for sorting the granular material according to the supplied particle diameter of the granular material and an attachment / detachment mechanism for attachment / detachment.

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