KR101389170B1 - Granular material sorting apparatus - Google Patents

Abstract

A particle sorting device capable of compactly installing a lifting transport device in a state in which the external dimensions of the particle sorting device are not maximized. A slant guide body 3C in a slant posture for guiding the granular material group in a flow state in which the slant body group is moved to a wide width and in a wide width state and a slant guiding body 3C provided in a state of being projected to both lateral lateral chambers of the slant guiding body 3C, A light receiving portion 5B for receiving light from the measurement target portion J in a state of having a viewing angle spreading in the diffusion direction of the grain group and having a resolution, The lifting and conveying apparatuses 2 and 8 lifting and conveying the granular object group are disposed in the illumination unit 4B in the inclined guide body 3C, ) Side of the upper portion in the descending direction of the granular material group and closer to the inclined guide body 3C than the end portion of the illumination portion 4B in the diffusion direction of the granular group.

Description

{GRANULAR MATERIAL SORTING APPARATUS}

The present invention relates to a slant guide body having a slant posture in which a granular object group is stacked in a flowing state in which the granular object group flows down to a wide width in a wide width state and is guided toward a measurement target point, In the direction in which the particle groups are projected to both lateral lateral chambers of the inclined guide body in the diffusion direction of the granular body group, And an illumination unit provided at a position above the illumination unit and projecting light toward the measurement target site; and a projection unit provided at an upper position in the downward direction of the granular object group in plan view as compared with the illumination unit, And the light from the measurement target portion is received in a state of having a viewing angle spreading in the group diffusion direction and having a resolution in the diffusion direction of the grain group Portion and, on the basis of the light reception information of the light receiving unit, to a grain sorting apparatus determines processing unit provided for determining the grains of particulate material from the group, and separate the target passing through the measurement target positions.

In the conventional particle sorting apparatus, devices such as an inclined guide body, an illuminating unit, and a light receiving unit are generally housed in a casing having a rectangular shape in plan view (see, for example, Japanese Patent Application Laid Open 2001-261142).

In the particle sorting apparatus of this kind, for example, in the case of using fine grains (rice grains) as the grains, it is preferable that the fine grains, which have been treated by the adjacent grains, A lifting process for lifting and transporting the granular object group to carry out a carrying process for transporting the granular object group to the outside and discharging the granular object group after the granular object to be separated, There may be a case where a transportation device is installed.

When the above-described lifting-and-conveying apparatus is provided in the conventional particle sorting apparatus, it is necessary to provide a lifting-and-conveying apparatus at a position on the outer side of the granular material sorting apparatus covered with the casing. For example, the lifting transport device may be provided at a position outside the grain bundle group diffusing direction in the particle sorting apparatus, or at an upper outer side position in the grain bundle sorting device downstream of the grain sorting device. In this case, there is a disadvantage that the external dimensions along the diffusion direction of the grains of the lifting transport device and the external dimensions along the downward direction of the grains increase.

An object of the present invention is to provide a particle sorting apparatus capable of installing a lifting transport apparatus in a state in which the size of an external dimension is suppressed.

The granular material sorting apparatus according to the present invention comprises a slant guiding body having a slant posture in which a granular material group is stacked as a single layer and in a flowing state in a wide width state,

In the state in which the grains group protrudes to both lateral lateral chambers of the inclined guide body in the diffusion direction of the grains group spreading in the wide state and the grains group An illumination unit provided in a state of being located at an upper position in a downward direction of the droplet grains and projecting light toward the measurement target portion,

Wherein the illumination unit is provided at an upper portion in the downward direction of the granular object group in a plan view and has a viewing angle spreading in the diffusion direction of the granular object group and has a resolution in the diffusion direction of the granular object group A light receiving unit that receives light from the measurement target portion,

And a discrimination processing section for discriminating a grain to be separated from among the grain groups passing through the measurement target portion on the basis of the light receiving information of the light receiving section,

A lifting and conveying apparatus for lifting and transporting the group of granular grains is provided on a side of a portion of the inclined guide body which is higher than the illumination portion in a downward direction of the granular material group, And is positioned closer to the inclined guide body than the end of the illumination unit.

In other words, the lifting and conveying apparatus for lifting and transporting the granular object group is provided on the side of the upper portion in the downward direction of the granular object group relative to the illumination unit in the inclined guide body, The lifting transport device is prevented from protruding outward beyond the illuminating portion in the direction of diffusion of the granular material group, and further, the lifting transport device can prevent the lifting transport device from projecting significantly outwardly from the illuminating portion, It is possible to prevent the large inclined guiding body from projecting upward toward the upper side in the downward direction of the grain body, and as a result, it is possible to equip the lifting carrying apparatus in a state in which the size of the outer dimension is suppressed.

Although the light receiving portion is provided at a position corresponding to the upper side in the downward direction of the grains with respect to the illumination portion in a plan view, the light receiving portion has a viewing angle spreading in the diffusion direction of the grains, The width of the light receiving portion in the diffusion direction of the grains of the light receiving portion becomes smaller than that of the illumination portion.

In addition, since the illuminating portions are provided in the state of protruding to both the lateral outer side chambers of the inclined guide body in the diffusion direction of the granular object group, There is a concave space which is concave on the side of the inclined guide body than the end of the illumination unit in the diffusion direction of the granular group.

Therefore, by using the concave space effectively, the lifting conveyance device is arranged in the lateral direction of the portion which is higher than the illumination portion in the inclined guide body in the downward direction of the granular object group, The lifting conveyance device can be equipped in a state in which the enlargement of the external dimension is suppressed by equipping the slant guide body in a state in which it is positioned so as to be closer to the inclined guide body than the end portion.

Therefore, according to the above configuration, it has been possible to provide a particle sorting apparatus provided with a lifting transport device in a state in which the size of the external dimension is suppressed.

In the above configuration, as the lifting carrying device, a pair of lifting carrying devices are provided,

It is preferable that the pair of lifting transport apparatuses are arranged on both lateral sides of a portion of the inclined guide body which is higher than the illumination portion in the downward direction of the grain body.

That is, since the pair of lifting transport apparatuses are arranged on both lateral sides of the upper portion in the downward direction of the grain body relative to the illuminating section in the inclined guide body, a pair of lifting transport apparatuses Can be arranged in a state in which the enlargement of the external dimensions of the housing is suppressed.

In addition, since the pair of lifting transport apparatuses are provided in this way, for example, by using one of these lifting transport apparatuses, it is possible to use the grains as grains as targets, After the granular object passing through the measurement target portion and separated as the separation target is separated by the other lifting conveying device by the conveying operation for conveying the granular object group to the granular object group feeding portion for feeding the granular object group to the upper portion of the inclined guide body, The carrying operation for discharging the group to the outside can be performed.

Therefore, according to the above configuration, it is possible to arrange the pair of lifting transport devices in a state in which the size of the outer shape of the particle screening device is suppressed.

In the above configuration, the lifting transport device is configured to accommodate the transport operation part in the inside of the tubular frame extending in the vertical direction,

Wherein a pair of left and right side plates are connected to a lower end portion of the tubular frame member of each of the pair of lifting transportation devices, the base frame extending downward in a downward direction of the granular material group in a plan view, A tubular frame body and a main frame part connected to the base frame, wherein the main frame part is constituted by the pair of tubular frame bodies, the base frame, and the pair of right and left side plates,

It is preferable that the illumination unit and the granular group supply unit for supplying the granular object group to the upper portion of the inclined guide body are supported by the main frame unit.

That is, the main frame portion is configured to support the illuminating portion and the granular material supplying portion by using the tubular frame extending in the vertical direction in the lifting transport device. In addition, the tubular frame extending in the vertical direction in the lifting conveyor has a sufficiently large support strength to support the conveying action portion accommodated therein and to support the group of granular objects to be conveyed .

Therefore, by using such a tubular frame effectively, a base frame extending downward in the downward direction of the granular material group in plan view is connected to the lower end of the tubular frame, and a pair of left and right side plates By connecting the tubular frame body and the base frame, the main frame portion is formed in a state in which the pair of tubular frame bodies, the base frame, and the pair of left and right side plates are integrated to increase the strength. The illuminating section and the granular layer supply section are supported by the sturdy main frame section constructed in this manner.

Therefore, according to the above configuration, the tubular frame of the lifting and transporting apparatus can be effectively used to form a sturdy main frame portion that supports the illuminating portion and the granular material supplying portion with a simple structure.

In the above configuration, it is preferable that the illuminating unit includes, in a lighting unit storage case formed in a state of having a light transmission window facing the measurement target portion and extending in the diffusion direction of the granular object group, And the both end portions of the illumination portion housing case in the diffusion direction of the grains are connected to and supported by the pair of left and right side plates.

That is, the illuminating unit includes a light projecting body having a light transmission window facing a measurement target portion and accommodating a long light projecting body in a lighting part accommodating case formed so as to extend in the diffusion direction of the supporter group, Is separated from the measurement target portion by the transmission window so that the light projected from the light projecting body can be projected toward the measurement target portion while dust and the like from the measurement target portion is scattered and attached to the light projecting body .

In addition, since both ends of the illumination part housing case in the diffusion direction of the granular substance group are connected and supported to the pair of right and left side plates, the illumination part storage case can be stably supported on the pair of side plates, It is possible to stably support the light projecting body to be illuminated, and to illuminate the measurement target portion well.

Thus, according to the above configuration, it is possible to stably support the light projecting body while properly suppressing the dust from adhering to the light projecting body in the illuminating unit, and appropriately illuminating the measurement target position.

In the above configuration, it is preferable that the light-receiving unit is formed in a narrower shape than the illumination unit in the diffusion direction of the grains group, and is accommodated in a light-receiving case connected to and supported by the illumination unit storage case.

That is, since the light-receiving portion is housed in the light-receiving case, it is possible to avoid dust or the like from being attached to the light-receiving portion.

In addition, since the light-receiving case is connected and supported by the illumination part housing case, the light-receiving part can be provided to the measurement target part in a state in which the relative relationship between the light-receiving part and the illumination part is properly positioned, The light from the measurement target portion can be properly received by the light receiving portion as appropriate.

In other words, taking into consideration that the light receiving case does not equip the lifting conveying device when the light receiving case is formed narrower than the illumination portion in the diffusion direction of the grapple group, the light receiving case for housing the light receiving portion is connected It is possible to prevent the dust or the like from the measurement site from adhering to the light receiving unit, and moreover, the light from the measurement target spot can be received properly by the light receiving unit.

Therefore, according to the above configuration, it is possible to prevent dust from adhering to the light receiving unit, and furthermore, light from the measurement target spot can be received properly in the light receiving unit.

In the above arrangement, it is preferable that, in the diffusion direction of the grains group spreading in the wide width state, the grains group protrudes toward both lateral outer chambers of the inclined guide body, A lower illuminating unit provided in a state of being located at a lower position in the descending direction of the grain body and projecting light toward the measurement target point,

The lower illuminating unit being provided at a lower position in the downward direction of the granular material group in a plan view and having a viewing angle spreading in the granular material group diffusion direction and having a resolution in the granular material group diffusion direction A lower light-receiving portion for receiving light from the measurement target portion is provided,

The lower illuminating unit includes a lower illuminating unit storage case formed in a state of being provided with a light transmitting window facing the measurement target portion and extending in the diffusion direction of the granular organ group, Of the light projecting body,

It is preferable that the lower light-receiving portion is formed in a narrower shape than the lower illuminating portion in the diffusion direction of the granular object group and housed in a lower light-receiving case connected and supported to the lower illuminating portion accommodating case.

That is, in addition to the illumination unit, a lower illuminating unit located at a lower position in the downward direction of the granular object group with respect to the measurement target site is provided, and in addition to the light receiving unit, The light from the measurement target portion can be measured by each of the light receiving portion and the lower light receiving portion.

For example, the measurement of the reflected light from the granular object group can be performed by measuring the reflected light from both the lower side surface and the upper side surface in the downward direction of the grains of the grains located in the measurement target portion in a plan view Respectively.

The lower illuminating section includes a light projecting window that faces the measurement target portion, and also accommodates a light projecting body of a long shape in a lower illuminating section accommodating case formed so as to extend in the diffusing direction of the supporter group, Since the inside of the case is partitioned by the transmission window between the portion to be measured and the projection window, it is possible to project the light projected from the light projecting object toward the measurement target portion while scattering dust and the like from the measurement target portion, So that it can be prevented from being attached to the body.

Since the lower light-receiving portion is formed in a narrower shape than the lower light-emitting portion in the diffusion direction of the grains and housed in the lower light-receiving case supported and connected to the lower illumination portion storage case, dust or the like from the measurement- So that it can be prevented from being scattered toward and adhered to.

Therefore, according to the above configuration, it is possible to appropriately illuminate the measurement target portion with respect to the light projecting body or the light receiving portion in the lower illumination portion in a good state in which the dust from the measurement target is scattered and less likely to adhere to the light projecting body or the light receiving portion In addition, it becomes possible to measure reflected light from both the lower side surface and the upper side surface in the downward direction of the grains group of the grains located at the measurement target site.

In the above configuration, the illumination part storage case and the lower illumination part storage case are integrally formed as a single accommodating body,

A monitoring window for monitoring the measurement target portion is formed on at least one end of both ends in the diffusion direction of the supporter group of the housing,

It is preferable that an opening for exposing the monitoring window is formed at a portion of the side plate corresponding to the monitoring window.

That is, the illumination part accommodating case accommodating the illumination part located at the upper position in the downward direction of the granular object group with respect to the measurement target part, and the lower illuminating part located at the lower position in the downward direction of the granular object group with respect to the measurement target part The lower illuminating unit housing case for housing the lower illuminating unit housing case is integrally formed as one housing body, so that the relative positional relationship between the illuminating unit and the lower illuminating unit can be maintained in a proper relationship as compared with the case.

A monitoring window for monitoring a measurement target portion is formed on at least one end of both ends in the diffusion direction of the supporter of the accommodating body, and at the portion corresponding to the monitoring window on the side plate, It is possible for the user to visually confirm whether the falling state of the granular object group is good from the outside through the opening for monitoring window exposure and the monitoring window.

Therefore, according to the above configuration, it is possible to maintain the relative positional relationship between the illuminating unit and the lower illuminating unit in an appropriate relationship, and further, the user can visually confirm whether or not the falling state of the grain group is good, .

The separating means separating the granular object to be separated and the other granular object group from the lower portion of the lower portion of the granular material group in the downward direction than the measurement target portion based on the discrimination result of the discrimination processing portion, Respectively,

Wherein one of the pair of lifting and transporting devices is configured to lift and transport the group of granular materials charged into the charging hopper toward the granular material supply portion,

It is preferable that the other lifting transporting device of the pair of lifting transporting devices is configured to transport the granular object group after the granular object to be separated by the separating device is lifted to the discharging portion.

That is, one of the lifting transport apparatus lifts and transports the group of granular objects put into the feeding hopper toward the granular material feeding section. Then, when the grain group is fed so that the grain group feeding section is caused to flow in a wide width on the upper side of the inclined guide body in the wide width state, the grain group is guided toward the measurement target point by the inclined guide body, , The discrimination processing unit discriminates the granular object to be separated from among the group of granular objects passing through the measurement target portion.

Then, on the basis of the discrimination result of the discrimination processing section, in the lower portion of the lower portion of the granular material group in the downward direction than the measurement target portion, the granular object is separated into the granular object group different from the granular object to be separated by the separating means, The granular object group after the granular object to be separated by the separation is separated is lifted and transported toward the discharge portion by the other lifting transport device. For example, in the case of a grain group, in the case of a grain group, it is possible to carry out an operation of transferring the grain group after separation of the grain as a separation object to the rice mill.

Therefore, according to the above arrangement, when the sorting operation of the granular object group is carried out, the granular object group after the separation of the granular object to be separated and conveyed by the granular object group toward the granular object group feeding unit is automatically performed, It is possible to efficiently carry out the operation of transferring the granular object group to another apparatus such as a polishing machine.

In the above configuration, the separating means may be arranged such that a plurality of air ejecting portions for ejecting air for separating the granular object to be separated and the other granular object groups are arranged along the diffusion direction of the granular object group And an air ejection unit having a plurality of control valves capable of switching between a non-operation state in which air is not ejected and an operation state in which air is ejected,

And a valve driving unit that drives the plurality of control valves to switch between the non-operating state and the operating state,

And the determination processing unit is configured to instruct, from among the plurality of control valves, instruction information for operating a control valve corresponding to switching from the air ejection unit to the operation state to the valve driving unit based on the determination result ,

Wherein the discrimination processing section and the valve driving section are arranged on the outer side in the diffusion direction of the grains group of one of the pair of side plates and on the outer side in the diffusion direction of the grains of the other side plate In the state where they are classified and arranged,

It is preferable that a supporting base for supporting the granular material supply portion is provided in a state of being connected to the pair of side plates and a tubular portion through which the connection wiring between the discriminating processing portion and the valve driving portion is inserted is provided on the supporting base, Do.

That is, when the determination processing section instructs the valve driving section to operate the control valve corresponding to switching from the plurality of control valves to the operating state among the plurality of control valves based on the determination result, And the corresponding control valve is operated based on the information.

A plurality of control valves are provided corresponding to the plurality of air ejecting portions. In order to drive the plurality of control valves, the valve driving portion includes a plurality of switching means for driving the valve, for example, a relay, The valve driving section and the discrimination processing section which are such a large apparatus may be arranged so that the outward side portion in the diffusion direction of the grains of one side plate of the pair of side plates and the outside side portion of the side plate of the other side plate, The discrimination processing section and the valve driving section can be arranged in a state in which there is less possibility of enlarging the external shape of the particle discriminating apparatus.

In addition, a support base is provided so as to be connected to the pair of side plates, and a support member for supporting the grains is provided on the support base to supply the grains to the upper portion of the inclined guide body. Further, by providing the tubular portion in the support member required for supporting the granular substance supply portion, the connection wiring between the discrimination processing portion and the valve driving portion can be inserted into the cylindrical portion, and the passage portion of the granular substance group The wirings can be provided in a state in which the transfer of the granular material group is not disturbed.

Therefore, according to the above configuration, it is possible to arrange the discrimination processing section and the valve driving section in a state in which there is less possibility of enlarging the external shape of the particle sorting apparatus, and furthermore, The wiring can be provided in a state in which it does not interfere with the conveyance of the granular object group without passing through.

In the above arrangement, the pair of lifting and transporting devices are each provided with a drive shaft which is rotationally driven around a horizontal axis in a state of being positioned at the lower end side, and further, each of the drive shafts is rotated in the same direction, Lt; / RTI >

An electric motor is provided in a state of being positioned between the pair of lifting and transporting devices in the diffusion direction of the grain group and being supported by the base frame,

It is preferable that the output shaft of the electric motor and each of the drive shafts are linked together.

That is, an electric motor is provided between the pair of lifting and conveying devices in the diffusion direction of the granular body group and is supported by the base frame between the pair of lifting and conveying devices, and the output shaft of the electric motor , And the drive shafts provided in a state of being positioned on the lower end side of each of the pair of lifting transport apparatuses are interlockingly connected.

In other words, since the pair of lifting transport apparatuses can be driven by one electric motor, the transmission structure can be simplified, and the downward movement between the pair of lifting transport apparatuses It is possible to dispose the electric motor in a state in which the external shape of the particle discriminating apparatus is not enlarged.

Therefore, according to the above configuration, the pair of lifting and transporting devices can be driven by the simple transmission structure, and furthermore, the electric motor can be arranged in a state in which the outline of the particle sorting device is not enlarged.

1 is a side view of a particle sorting apparatus.
2 is a front view of the particle sorting apparatus.
3 is a longitudinal side view of the particle sorting apparatus.
4 is a perspective view showing a configuration of a main frame portion;
5 is a plan view showing the arrangement of main parts;
6 is a side view of the main part;
7 is a perspective view showing a configuration of the accommodating body disposing portion;
8 is a perspective view showing a configuration of the accommodating body disposing portion;
9 is a perspective view of a light-shielding member arrangement portion.
10 (a) is a perspective view of the light-shielding member arrangement portion, and FIG. 10 (b) is an exploded perspective view of the light-shielding member arrangement portion.
11 is an exploded perspective view showing the configuration of each part in the housing.
12 is a diagram showing illumination states of a measurement target portion.
13 is a diagram showing an air supply state to the air ejection apparatus;
14 is a control block diagram.
15 is a diagram showing a light receiving state of a light receiving means;
16 is a diagram showing an appropriate light amount range for transmitted light;
17 is a diagram showing an appropriate light amount range for reflected light;
18 is a diagram showing the frequency distribution of the amount of light.
19 is a flowchart showing a control operation;
20 is a diagram showing a flow chart of a control operation;
21 is a view showing a light receiving state from a measurement target position.

Hereinafter, an embodiment of the grain sorting apparatus according to the present invention is applied to a grain group sorting apparatus that performs sorting while guiding a fine grain group such as brown rice or picked grain as a grain group, Explain.

As shown in Figs. 1 and 2, the fine particle group k is loaded in a fluidized state in which the fine particle group k is passed through as a single layer and in a wide state so as to pass the measurement target point J, And a shovel 3C (an example of an inclined guide body) provided at the upper side of the shovel 3C is provided in the hopper 3B. k can be removed from the upper surface of the shooter 3C to separate the defective lip from the defective lip having a light reflectance out of an appropriate range or a light transmittance out of an appropriate range and a fine product group of good products .

Hereinafter, the configuration of each unit will be described.

The vibration feeder 3B is provided with a receiving portion 25 for receiving the fine particles discharged from the lower portion of the storage hopper 3A and a vibration generator 26 for imparting vibration to the receiving portion 25, The vibration generator 26 is configured to apply vibration to the receiving portion 25 and to guide the fine group k from one end thereof to the shooter 3C. 7, the shovel 3C is constituted by a groove-like plate formed by arranging the linear grooves m in a plurality of rows along the widthwise direction, The fine particles k supplied in a state of spreading in a wide state along the width direction of the shooter 3C are guided in a row in the grooves m of a plurality of rows.

Therefore, the measurement target portion J is allowed to pass through the holding hopper 3A, the vibration feeder 3B, and the shooter 3C in such a state that the fine particle group k is spread in the single-layer state and in the width direction And a conveying means 3 for conveying the sheet.

Further, in this embodiment, the reservoir hopper 3A and the vibration feeder 3B constitute a supporter group feeding section for feeding the fine grain group k to the upper part of the shooter 3C.

Incidentally, the width direction of the shooter 3C corresponds to the direction of diffusion of the grains 3C, and the feed direction of the fine grains k when the upper surface of the shooter 3C is guided downward corresponds to the downward direction of the grains 3C . Further, the shooter 3C is installed in an inclined posture so as to face the lower part of the apparatus front part from a position above the apparatus rear part of the powder particle sorting apparatus, and the feed direction of the fine particle group is, Direction, and the device transverse direction, which is the direction along the width direction of the shooter 3C, corresponds to the diffusion direction of the grains 3C.

The vibration feeder 3B changes the feed rate of the fine particles k delivered to the shooter 3C by changing the feeding speed of the fine particles k due to the vibration of the vibration generator 26, The flow rate of the fine particles k can be controlled by changing the flow rate of the fine particles k.

As shown in Fig. 3 and Fig. 6, the measurement target point J for the fine grain group k is set in the path where the fine grain group k moves down from the lower end of the shooter 3C, A reflected light measurement spot J1 for measuring the reflected light reflected by the fine particle surface and a transmitted light measurement spot J2 for receiving the transmitted light that has passed through the fine particle are positioned in the transport direction of the fine particle group, As shown in Fig. More specifically, the transmitted light measuring point J2 is set to a position lower than the reflected light measuring point J1 in the feeding direction of the fine particle group.

6, the illuminating means 4 for illuminating the measurement target point J and the light receiving means 5 for receiving the light from the fine grain group k at the measurement target point J And an air jetting device 6 as a separating means for separating particles to be separated and other fine particles from the particle to be measured J at the lower portion in the transport direction lower than the particle to be measured.

As shown in FIG. 6, the illuminating means 4 is located on one side (specifically, the front side of the apparatus) with respect to the measurement target portion in the transport direction of the fine grain group, and the reflected light measuring portion J1 is illuminated Side illuminating means as the one-side illuminating means and the to-be-measured portion J in the conveying direction of the fine grain group k are 180 degrees apart from each other on the other side (specifically, Side illumination means 4B as the other-side illumination means for illuminating the reflected light measurement spot J1.

The background light quantity adjuster 4C for transmitted light is provided in a state of being positioned on the front side of the apparatus to be measured J and the background light quantity adjuster 4C for background light formation A rear side reflector 4D for forming background light is provided in a state where the front side reflector 4D is located behind the measurement target point J and the rear side of the apparatus.

As shown in Fig. 6, the rear side illuminating means 4B includes two rear illuminating means 4B for directly illuminating the reflected light measuring points J1 over the entire width of the apparatus in the apparatus width direction, A line-shaped light source 30B as a light projecting body formed by arranging fluorescent lamps in the shape of a cylinder, and a light source 30B for reflecting the light emitted by the line light source 30B, And a light reflecting member 31B as a light projecting member for illuminating the reflection light measuring portion J1 from the illumination direction different from the illumination direction over the entire width of the apparatus in the width direction of the apparatus. And the reflection light measurement points J1 from the different illumination directions on the lower side in the transport direction.

In addition, a diffusive reflection plate 32 bent in a substantially U-shape with a matte white coating on the inner surface is disposed on the back surface of the line-shaped light source 30B. In the vicinity of the line-shaped light source 30B , And a projection light adjustment mechanism for guiding light to the light reflection member 31B and guiding the light flux toward the reflection light measurement point J2 to a state of narrowing the width along the fine particle transfer direction is provided Reference).

The light reflecting member 31B is narrow in the conveying direction of the fine grained group and is formed in a long rectangular shape along the longitudinal direction of the line shaped light source 30B, and the reflecting surface is made of a mirror surface. The light reflecting member 31B is fixed so that the angle of inclination of the light reflecting member 31B is an appropriate angle so that the amount of light illuminated by the line-shaped light source 30B and the amount of light illuminated by the light reflecting member 31B are the same And the light is projected toward the reflection light measuring point J1.

As shown in Fig. 6 and Fig. 11, the front part side illuminating device 4A is configured such that, similarly to the rear part side illuminating device 4B, the front part side illuminating device 4A is provided on the upper outer side A diffuse reflector 32 provided on the back surface of the line-shaped light source 30A, a line-shaped light source 30A arranged on the back surface of the line-shaped light source 30A, And a light reflecting member 31A as a light projecting member that reflects the emitted light and illuminates a lower outer surface portion located below the conveying direction of the fine grain group located at the reflected light measuring point J1 by the reflected light , And the reflected light measurement points J1 are respectively illuminated from the different illumination directions on the upper side in the transport direction and on the lower side in the transport direction with respect to the fine grain of the reflected light measurement spot J1.

In the vicinity of the line-shaped light source 30B, light is guided to the light reflecting member 31B and the light flux directed to the reflected light measuring point J2 is narrowed along the fine particle feeding direction (Refer to Fig. 12).

The illumination state with respect to the measurement target point J by the illumination means 4 will be described.

12, the light from the line-shaped light source 30A is projected directly toward the reflection light measuring point J2, and the light from the line-shaped light source 30A is reflected by the light- Is guided to the reflecting member 31A, and the light reflected by the light reflecting member 31A is projected toward the reflection light measuring point J2.

The illumination light directly projected from the line-shaped light source 30A toward the reflection light measuring point J2 is projected in a light beam shape so that the width along the fine particle conveying direction becomes narrower toward the reflection light measuring point J2, Only the portion J1 is illuminated. On the other hand, the illuminating light reflected by the light reflecting member 31A is projected in the form of a light flux so that the width along the fine particle conveying direction becomes narrower toward the reflection light measuring point J2, but the degree of throttling is smaller than that of the line light source 30A So as to illuminate not only the reflected light measuring point J1 but also the transmitted light measuring point J2.

As described above, since the front side lighting means 4A is configured to illuminate the grains located in the transmitted light measurement spot J2 from the front side of the apparatus, the front side side illuminating means 4A is configured to also use transmitted light illumination means.

12, the light from the line-shaped light source 30B is projected directly toward the reflection light measuring point J2 as in the case of the front side side lighting means 4A The light from the line-shaped light source 30B is guided to the light reflecting member 31B and the light reflected by the light reflecting member 31A is projected toward the reflected light measuring point J2. The illumination light directly projected from the line-shaped light source 30A toward the reflection light measuring point J2 is projected in a light beam shape so that the width along the fine particle conveying direction becomes narrower toward the reflection light measuring point J2, Only the portion J1 is illuminated. On the other hand, the light reflected by the light reflecting member 31A is projected in the form of a light beam so that the width along the fine conveying direction becomes narrower toward the reflection light measuring point J2, So that not only the reflected light measuring point J1 but also the transmitted light measuring point J2 are projected.

12, only light projected from the line-shaped light sources 30A and 30B is projected only at the reflection light measuring point J1, but light directly projected from the line-shaped light sources 30A and 30B , And projected onto the transmitted light measurement point J2 as well as the reflected light measurement point J1.

Among the light projected from the rear side illumination means 4B, the light projected toward the transmitted light measurement point J2 is shielded by the light shielding member 38 described later so as not to reach the transmitted light measurement spot J2 .

6, the background light amount regulator 4C is provided at a portion corresponding to the background when the transmission light measurement portion J2 is viewed from the transmission light reception device 5C to be described later, A plurality of LED light emitting elements 33 arranged on the light projecting side of an area where the plurality of LED light emitting elements 33 are provided, And a diffusion plate 34 for diffusing the light emitted by the light source.

14, there is provided a dimming device 35 capable of changing the light emission output of the plurality of LED light emitting elements 33. The light amount of the background received by the transmitted light receiving device 5C is set to a predetermined value So as to be adjusted to the light quantity value within the light quantity range.

As shown in Fig. 6, the front-side-side reflection plate 4D for forming background light is provided at a position corresponding to the background when the reflected-light measuring point J1 is viewed from the rear-side reflected-light receiving device 5B described later, The surface having a predetermined light reflectance is made of a white plate and the light from the line-shaped light source 30A is reflected so that the amount of background light received by the rear-side reflected light receiving device 5B is within a suitable light amount range Light amount value.

As shown in Fig. 6, the rear-side reflector 4E for forming the background light is provided at a position corresponding to the background when the reflected-light measuring point J1 is viewed from the front-side reflected-light receiving device 5A described later, The surface having a predetermined light reflectance is made of a white plate and the light from the line-shaped light source 30B is reflected so that the amount of background light received by the front-side reflected light receiving device 5A is within a suitable light amount range Light amount value.

Next, the light receiving means 5 will be described.

As shown in Fig. 6, the light receiving means 5 is located on the front side of the apparatus as one side with respect to the measurement target point J in the transport direction of the group of fine grains, and receives the reflected light from the front- And one side of the portion to be measured J in the transport direction of the group of fine grains is positioned on the rear side of the apparatus as the other side at 180 degrees on the other side so as to receive the reflected light as the reflected light receiving means on the other side And a transmitted light receiving device 5C as a transmitted-light receiving means for receiving transmitted light, which is located on the rear side of the apparatus with respect to the to-be-measured spot J in the feeding direction of the fine grain group Consists of.

In addition, the front-side reflected light receiving device 5A is configured to receive the light reflected by the front surface side illuminating device 4A and reflected by the front surface side illuminating device 4A at the reflected light measuring point J1, The back-side reflected-light receiving device 5B is configured to receive light reflected by the fine-surfaced surface illuminated by the rear-side illuminating device 4B at the reflected light measuring point J1. The transmitted-light receiving device 5C is configured to receive the light that has been transmitted by the front side illuminating means 4A at the transmitted light measuring position J2 and has passed through the fine particle.

6, each of the light receiving devices 5A, 5B and 5C includes a plurality of unit light receiving portions 5a for receiving light from the reflected light measuring portion J1 and the transmitted light measuring portion J2, So that the detection light from the reflected light measurement point J1 or the transmitted light measurement point J2 is received in a resolution state in which the range smaller than the size of the fine particles is set as the unit light receiving object range.

That is, each of the light receiving devices 5A, 5B, and 5C has a range p (for example, a range smaller than one tenth of the particle size) smaller than the size of each fine particle in the fine particle group, And a plurality of unit light receiving portions 5a corresponding to the plurality of light receiving object ranges are arrayed in a line shape in correspondence with the wide measurement target portions J, And a condenser lens 37 for guiding the light received in a state of having a viewing angle in the machine transverse direction to the plurality of unit light receiving portions 5a.

Each of the light receiving devices 5A, 5B and 5C is configured so that the total width in the device width direction of the measurement target portion J is the target width of the image of the fine grains k located in the measurement target portion J, Receiving unit 5a of the CCD sensor unit 36. For example, in FIG. 15, the unit light-receiving unit 5a is provided from the right end side to the left end side of the measurement target point J, And the light receiving information is sequentially extracted from the light receiving element.

6, the rear side illuminating means 4B illuminates the reflected light measuring spot J1 to prevent the reflected light reflected from the fine particles from being received by the transmitted light receiving device 5C, A light shielding member 38 for shielding the reflected light and the illumination light is provided so as to prevent the illumination light of the illumination means 4B from reaching the transmitted light measurement point J2.

As shown in Figs. 9, 10, 12, and 13, the light shielding member 38 includes a light shielding functioning portion (not shown) formed of a substantially strip-shaped member provided in a state in which the longitudinal direction extends along the apparatus widthwise direction And a mounting portion 38B bent in a substantially U-shape in the front-rear direction of the apparatus in the longitudinal direction. The light shielding portion 38A has a shape in which the band is bent in a substantially U-shape with the upper surface portion 38a and the bent portion 38b and the upper surface 38a is in the shape of a transparent light measurement spot J2 Is located at a high position and is disposed in an inclined posture so as to be positioned downward as it is located at the rear side of the apparatus away from the transmitted light measurement point J2 and the fine particle group k is placed on the upper surface 38a So as to flow downward. The light shielding member 38 is disposed as close as possible to the transmitted light measurement spot J2. The mounting structure of the light shielding member 38 will be described later.

12, the light directly projected from the line-shaped light source 30B toward the reflected light measuring point J2 in the rear side illuminating unit 4B is reflected by the light source in the fine conveying direction The light reflected by the light reflecting member 31B is projected not only toward the reflected light measuring point J1 but also toward the transmitted light measuring point J2. By providing the light-shielding member 38 as described above, the light projected toward the transmitted light measurement spot J2 among the light projected from the rear-side illuminating means 4B is shielded.

The light shielding member 38 is provided such that the upper surface portion 38a is wide in a direction crossing the fine particle transport direction and the light from the rear side side illuminating means 4B is located at the reflection light measuring point J1 Is prevented from being guided to the transmitted-light receiving device (5C).

A bent optical path forming means 39A for guiding light from the reflected light measuring point J1 to the front-side reflected light receiving device 5A in a state where the optical axis is bent is provided.

As shown in Fig. 6, the bending optical path forming means 39A reflects, from the reflected light measuring point J1, the light directed toward the front side of the apparatus along the direction substantially orthogonal to the transfer direction of the fine particles, And a second reflector 41A for guiding the light reflected by the first reflector 40A upward and substantially parallel to the direction of conveyance of the fine grains to the front-side reflected-light receiving device 5A, As shown in Fig. Each of the first reflector 40A and the second reflector 41A is formed into a substantially rectangular plate shape with its reflecting surface made of a mirror surface.

Since the front-side reflected-light receiving device 5A is provided with the condenser lens 37 and collects the light from the to-be-measured spot J as described above, for example, as shown in Fig. 21, The width along the device width direction can be narrower than the width of the measurement target portion J (width of the shooter 3C) since the device has the viewing angle in the device width direction. This also applies to the other light receiving devices 5B and 5C.

The bending optical path forming means 39B for the back side side reflected light receiving device 5B is provided with the first reflector 40B and the second reflector 40B in the same manner as the bending optical path forming means 39A for the front side side reflected light receiving device 5A. 41B, and the configuration is the same as that of the first embodiment except that the arrangement is symmetrical about the front and the rear.

The optical axis CL1 of the reflected light received by the front-side reflected-light receiving device 5A and the optical axis CL2 of the reflected light received by the rear-side reflected-light receiving device 5B are slightly shifted in the vertical direction But it is set so as to follow a direction substantially perpendicular to the transport direction of the fine grain group.

The folded optical path forming means 39C for the transmitted light receiving device 5C is configured so that the light projected from the front side illuminating means 4A and passed through the transmitted light measuring spot J2 is guided along the direction substantially parallel to the conveying direction of the fine grains A first reflector 40C that reflects the light reflected by the first reflector 40C upward and a second reflector 40C that reflects light reflected by the first reflector 40C in a direction substantially orthogonal to the conveying direction of the fine grains and guides the light to the transmitted light receiving device 5C 2 reflecting plate 41C. Each of the first reflector 40C and the second reflector 41C is formed into a substantially rectangular plate shape whose mirror surface is a mirror surface.

The separation point is set in a state of being positioned lower than the transmitted light measurement point J2 in the conveyance direction of the fine particles and air is jetted to the object to be separated determined that the air injection device 6 should be separated.

The air jetting device 6 has a structure in which a plurality of jetting nozzles 6a as air jetting portions are formed in a state corresponding to each of the divided sections of the measurement target portion J having a total width in the widthwise direction of the device divided into a plurality of segments And the ejection nozzle 6a of the section in which the object to be separated exists is operated.

14, the air injection device 6 is provided with an air manifold 42 for branching and supplying air to a plurality of jetting nozzles 6a, The air is supplied from the air compressor 44 serving as an air supply source to the dust removing filter 47 via the pressure supply path 43. In addition, the supply of air from the air manifold 42 to each of the plurality of jetting nozzles 6a is separately controlled so that the electromagnetic force acts as a control valve capable of switching into a non-operating state in which air is not jetted and an operating state in which air is jetted A valve 45 is provided and air is branched and supplied from each electromagnetic valve 45 to each of the ejection nozzles 6a through the air manifold 42 through a pipe that forms a flow path to each of the ejection nozzles 6a have. 14, a pressure sensor 48 as pressure detecting means for detecting the pressure of air in the pressure supply path 43 is provided.

Each of the spray nozzles 6a is formed of a metal block 6c made of aluminum or the like and an internal pipe 6b for supplying air to each spray nozzle 6a is also arranged inside the block body 6c Respectively. 10, a groove portion formed on the upper surface of the block member 6c in a state of being connected to the internal pipe 6b, and a plate member 6d mounted from the upper side, Respectively.

As shown in Fig. 6, among the fine particles k guided from the lower end of the shooter 3C, normal fine particles (k), which proceed as they are without being jetted from the jet nozzle 6a, (For example, stains such as stains, stones, glass fragments, etc., which are separated in the lateral direction from the flow of the normal fine particles (k) (50) for collecting the separated water is provided in the upper part of the housing (1), and the housing accommodating portion (49) of the housing for normal rotation is formed into a tubular shape elongated in the machine width direction, (50) is formed so as to surround the periphery of the separator (49).

The receiving mouth portion 50 for separating water is provided with a receiving and holding plate 50a for receiving the blown air and guiding it downward below the jetting direction of the air from the jetting nozzle 6a, And a guide plate 50b having a shape in which the lower portion is narrowed while collecting the blown fine grains while guiding the blown fine grains. The separated object recovered in the accommodating mouth portion 50 of the separated material recycling is discharged from the separated material outlet 52 to the outside do.

The fine grains k recovered in the storage section 49 for normal gravity storage are supplied to the transporting end portion of the lower portion of the discharging lifting transport device 8 by the normal guiding body 53, (8), and is discharged from the discharge port (7) to the outside of the apparatus.

As shown in Fig. 3 and Fig. 6, in the rear side of the apparatus to be measured J, in other words, in the plane of the fine grain group in the transport direction, The rear side illumination means 4B and the rear side reflection plate 4E for forming background light are housed in the rear side illumination portion storage case 54B formed in a state of having the window 59 and extending in the device transverse direction, .

In the state of having the light transmission window 59 located on the front side of the apparatus to be measured J, in other words, in the lower side in the transport direction of the fine grains as seen from the plane, The front side side illumination means 4A, the background light amount regulator 4C and the front side side reflection plate 4D for forming background light are housed in the front side side illumination portion storage case 54A formed in a state of extending in the machine width direction .

As shown in Fig. 7, the rear side illumination part storage case 54B and the front side side illumination part storage case 54A are integrally connected by the side part 54c located on both sides in the device width direction, And is integrally formed as a housing body 54. [

As described above, the rear-side illumination portion storage case 54B and the front-side side illumination portion storage case 54A are formed so as to extend in the apparatus-width direction, respectively, and the rear-side illumination means 4B and the back- The rear-side reflector 4E is housed in a state in which it is fixed in position by brackets (not shown) on both side portions 54c of the illumination unit housing case 54B. Each of the front side illumination means 4A, the background light amount regulator 4C and the front side reflection plate 4D for forming the background light is provided on both side portions 54c of the front side illumination portion storage case 54A And is housed in a state of being fixed in position by a bracket.

Therefore, by providing the rear side illumination means 4B and the back side side reflection plate 4E for forming background light in the rear side illumination portion storage case 54B, the upper illumination portion M1. The upper illuminating section M1 is provided at a position above the fine grain group in the transport direction. The front side illumination unit 4A, the background light amount regulator 4C and the front side reflection plate 4D for forming background light are provided in the front side illumination unit storage case 54A, And a lower illuminating unit M2 for projecting the illuminating light. The lower illuminating section M2 is provided at a lower position in the feeding direction of the fine grain group.

6, a front side camera case portion 55A in which the front side side reflected light receiving device 5A is housed, and a front side camera case portion 55B in which the front side side reflected light receiving device 5A is housed, Side light-receiving portion case 55 integrally formed with a front-side light-path forming casing portion 55B for accommodating the forming means 39A therein are connected and supported. 7, since the front-side reflected light receiving device 5A is arranged narrower than the width of the measurement target portion J in the transverse direction of the apparatus, as shown in Fig. 7, the front- 55 are narrower than the accommodating body 54 in the transverse direction of the apparatus.

6, a slit hole 73 is formed in the front side surface of the front-side illumination portion housing case 54A so as to be elongated along the device transverse direction for allowing light from the reflected light measurement portion J1 to pass therethrough, Respectively.

Therefore, the front-side reflected-light receiving device 5A as the lower-side light-receiving portion provided at the lower portion in the transport direction of the fine grains as viewed from the top in the plan view than the lower illuminating portion M2 is provided on the accommodating body 54 Receiving side case 55 which is connected to and supported by the lower-side illumination part housing case 54. The lower-side illumination part housing case 54 is formed in a narrower shape than the lower side illumination part M2 housed therein.

6, on the rear side of the rear portion side of the apparatus side housing portion 54B of the rear side illumination portion, a first rear side camera case portion 56A incorporating the rear side reflected light receiving device 5B, A second rear side camera case portion 56B incorporating a transmitted light receiving device 5C and a rear side optical path forming case portion 56C for accommodating therein the folding optical path forming means 39B are integrally formed on the rear side Receiving portion case 56 is connected and supported. As described above, since the rear-side reflected light receiving device 5B and the transmitted-light receiving device 5C are provided with narrower widths than the width of the measurement target portion J in the device transverse direction, Likewise, the rear-side light-receiving-unit case 56 is narrower than the accommodating body 54 in the transverse direction of the apparatus.

6, a slit hole 74 is formed in the rear side surface of the rear side illumination portion housing case 54B so as to be elongated along the device transverse direction for allowing light from the reflected light measuring portion J1 to pass therethrough, And a slit hole 75 extending elongated along the device transverse direction for passing light from the transmitted light measurement spot J2 are formed, respectively.

Therefore, the rear-side reflected-light receiving device 5B and the transmitted-light receiving device 5C, which are provided at upper portions in the transport direction of the fine grains, as viewed from the top in the plan view, And is housed in a front side light receiving portion case 54 connected to and supported by the lower illuminating portion accommodating case 54. The lower illuminating portion accommodating case 54 is formed in a narrower shape than the upper illuminating portion M2 housed in the accommodating body 54. [

6 and 8, the shooter 3 is installed in a space through which a fine grain group formed between the rear-side illumination portion storage case 54B and the front-side illumination portion storage case 54A passes, The air injection device 6 is provided so as to be supported by the side surface portions 54c of the accommodating body 54 such that the air injection device 6 is positioned lower than the measurement target portion in the transport direction of the fine particles.

In addition, as shown in Figs. 6 and 8, the support bracket 65 is connected so as to be laid over the both side portions 54c of the accommodating body 54. Fig. The support bracket 65 is provided in such a state that a flange portion 65a located on both side portions in the widthwise direction of the apparatus is screwed to the flange portion 54c1 in the lateral direction formed on both side portions 54c.

The block member 6c constituting the air injection device 6 is screwed to the frame-shaped mounting portion 65a on the front side of the support bracket 65. [ As shown in Fig. 10, a cylindrical receiving-port forming member 49A for forming a receiving port 49 for receiving a normal-rotation loop is further provided on the front side of the block member 6c. The lateral side portion 49A1 of the receiving port forming member 49A is provided with a wide width so as to prevent the fine particles from scattering in the machine width direction.

An air manifold 42, a plurality of electromagnetic valves 45, and a plurality of electromagnetic valves 45 are provided on the bottom surface portion 65b of the support bracket 65 located on the back side of the block member 6c, A plurality of piping and the like are provided, and a cover body 66 for covering the space in which the respective devices are provided is partitioned from a region through which the fine particles pass. And can be connected to the block body 6a through an opening 65a1 formed in the frame-shaped mounting portion 65a.

The cover 66 is welded or screwed to the support bracket 65 so that the upper surface 66a of the cover 66 is positioned at a position closer to the measurement target point J, Is arranged in an inclined posture so as to be positioned downward as it is located at the rear side of the apparatus from the measurement target point J, and the fine particle group k is configured to flow downward without being stacked on the upper surface 66a.

8, 9, and 10, the shielding member 38 is fixed to the cover body 38 in a state in which the mounting portion 38B provided at both side portions in the widthwise direction of the apparatus is fixed by welding or screwing, (Not shown). A gap Z is formed between the light-shielding action portion 38A of the light-shielding member 38 and the upper surface 66a of the cover member 66 so that the transmitted light can pass therethrough.

This granular material sorting apparatus comprises a feed lifting transport device 2 for lifting and transporting the fine grains k fed to the feed hopper 1 and supplying the same to the storage hopper 3A and a storage section 49 The lifting transporting device 8 for lifting and transporting the normal grains recovered from the upper part of the shooter 3C and discharging the normal grains from the discharging part 7 provided at the upper part is arranged in the transport direction of the fine grains In the widthwise direction of the shooter 3C so as to be located closer to the shooter 3C than the positions of the both side ends of the upper illuminating section M1.

As shown in Fig. 1, the feeding lifting and transporting apparatus 2 includes a driving wheel body 2a positioned at the lower end side in the tubular frame body 2A having a rectangular shape as seen in a plan view, And a bucket type lifting conveyor provided with a plurality of buckets 2d at appropriate intervals in an endless rotating body 2c wound around the driven wheel 2b. As shown in Figs. 1 and 5, The fine grains k fed into the feed hopper 1 provided at the lower part of the apparatus rear side are lifted up by the bucket 2d and fed to the storage hopper 3A. In the storage hopper 3A, a transparent window 70 is formed so that the state of supply of the fine particles k can be visually confirmed.

As shown in Fig. 3, the lifting transport apparatus 8 for discharging includes, in the same manner as the lifting transport apparatus 2 for supplying, the inside of a tubular frame 8A having a rectangular shape in a plan view, And a bucket type lifting conveyor having a plurality of buckets 8d spaced apart from each other at appropriate intervals in a non-rotating body 8c wound around a drive wheel body 8a positioned on the upper end side and a driven wheel body 8b positioned on the upper end side And is lifted up by a bucket to return a normal fine grains group k recovered from the storage section 49 for normal gravity storage and guided down by the guide plate 53 to be supplied to the discharge section 7. [

The feeding lifting transport device 2 and the lifting transporting device 8 for discharging respectively rotate the drive shafts 2e and 8e of the drive wheel bodies 2a and 8a located at the lower end side in the same direction, .

The tubular frame members 2A and 8A of the lifting and conveying unit 2 and the lifting and conveying unit 8 constitute a part of the main frame portion F of the particle screening apparatus . That is, as shown in Fig. 4, the lower ends of the tubular frames 2A and 8A of the pair of lifting transport apparatuses 2 and 8 are provided at the front side of the device, that is, And a pair of left and right side plates 13 and 14 are connected to the tubular frame bodies 2A and 8A and the base frame 12 And the main frame portion F is formed from a pair of tubular frame members 2A and 8A, a base frame 12 and a pair of left and right side plates 13 and 14. [ In Fig. 4, the other members are omitted for easy understanding of the configuration of the main frame portion F. Fig.

4, the base frame 12 includes side portions 12a located on both sides in the left and right direction and a front portion 12b connecting the left and right side wall portions 12a, 1, and an electric motor 15 is provided so as to be supported by the pedestal 12c in a state of being located in an inner space formed by the two members, as shown in Fig.

2, the electric motor 15 is provided in such a state that the output shaft 15a protrudes outward on both sides, and the electric motor 15 is connected to the output shaft 15a and each of the drive shafts 2e and 8e through a chain An endless rotary body 16 such as a power transmission belt is wound and connected to the drive shafts 2e and 8e by an electric motor 15 in a state in which they are rotationally driven integrally in the same direction.

As shown in Fig. 4, the accommodating body 54 is configured such that both side portions in the transverse direction of the apparatus are connected and supported to the left and right side plates 13, 14, respectively. In addition, both sides of the accommodating body 54 in the transverse direction of the apparatus are suspended and supported in a state of inserting a rectangular insertion through hole 60 formed in each of the left and right side plates 13, 14, The flange portions formed on the peripheral portions of the both side portions 54c of the housing body 54 are screwed to the flange portions formed around the insertion through holes 60 of the side plates 13 and 14. [

As shown in Figs. 2 and 4, side covers 63 and 64 are provided on both side outer side portions of the left and right side plates 13 and 14 in the device transverse direction, respectively, to cover the outer side. A transmission window 67 provided with a transparent glass is formed on the side surface portion 54c of the housing body 54 and one side cover 63 located on the right side in the front view of the apparatus is provided with the transmission window 67 Through the insertion hole 60 formed in the side plate 13 and the measurement target portion J from the outside of the apparatus.

As shown in Figs. 4 and 5, the side plates 13 and 14 on the left and right sides are respectively provided with flange portions formed by bending the peripheral edge portion in a substantially C shape. By the flange portions, the side covers 63, 64 and the spaces Q1, Q2 are formed between the side plate 13 and the side cover 63 and between the side plate 14 and the side cover 64, respectively.

4, a control device 9 and a power supply device (not shown) are arranged in a space Q1 formed by a gap between the right side plate 13 and the right side cover 63 And they are structured so as to be fixed to the right side plate 13 in a fixed position. The electromagnetic valve drive circuit 29 is disposed in the space Q2 formed by the gap between the left side plate 14 and the left side plate 64 and is fixed to the left side plate 14 And is installed.

As shown in Fig. 4, a support table 27 for supporting the vibration feeder 3B is fixedly connected to the side plates 13, 14 in a state of being laid therebetween. The supporting table 27 is formed on the underside of the supporting table 27 in such a manner that an angular cylindrical portion 28 communicating the space Q1 on the right side and the space Q2 on the left side is integrally connected to the electromagnetic valve driving circuit 29 and the control device 9 can be arranged so as to pass through the inside of the cylindrical portion 28. [

The electric wires (not shown) connected to the line-shaped light sources 41A and 41B and the light receiving devices 5A, 5B and 5C are arranged through the inside of the accommodating body 54 and connected to the control device 9 Respectively. In this manner, the electric wiring h is not exposed in the measurement passage region where the fine particles pass. Since the electric wiring h is prevented from being exposed to the measuring passage region, there is a possibility that a small animal such as a mouse may enter the place where the fine particle passes, but the electric wiring is damaged by a small animal Disadvantage can be avoided.

Next, the control configuration will be described.

14, a control device 9 using a microcomputer is provided and each image signal from each of the light receiving devices 5A, 5B, 5C and the image signal from the operation panel 11 ) Is input to the input device. As shown in Fig. 2, the operation panel 11 is provided so as to face the outside of the front cover 10, and various settings can be made. On the other hand, from the control device 9, drive signals for turning on the line-shaped light sources 30A and 30B and electromagnetic valves for interrupting the supply of air from the air manifold 42 to the respective ejection nozzles 6a A drive signal for the electromagnetic valve drive circuit 29 for driving the vibration feeder 3B and a drive signal for the vibration generator 26 for the vibration feeder 3B and a control command signal for the light modulation device 35 are outputted have.

Then, based on the light receiving information of the light receiving means 5, the control device 9 is used to determine the size of the particle object (including defective fine particles and foreign substances such as gravel or glass fragments) (K) to change the feed flow rate of the fine grain group (k) based on the detection information of the pressure sensor (48) 3B) is constituted.

Based on the result of the determination, the control device 9 outputs command information for actuating the control valve 45 corresponding to switching to the operating state among the plurality of control valves 45 in the air jetting section 6a And to instruct the electromagnetic valve drive circuit 29 to operate.

Next, the evaluation processing means 100 will be described.

The evaluation processing means 100 calculates the light amount values obtained by the light receiving portions 5a for each of the front-side reflected light receiving devices 5A and the rear-side reflected light receiving devices 5B in advance for each of the unit light receiving portions 5a It is judged whether each unit light receiving section 5a is out of the set proper light amount range? Eh and the light amount value obtained by receiving each unit light receiving section 5a of the transmitted light receiving device 5C is detected by each unit light receiving section 5a ) Is determined for each of the unit light receiving portions 5a. If the light receiving amounts of any one unit light receiving portion 5a are out of the appropriate light amount ranges? Eh and? Et in the determination of whether or not the unit light receiving portions 5a are out of the predetermined light amount range? As an object to be separated.

The evaluation processing means 100 also calculates the amount of received light data of the set number obtained by sampling for each unit light receiving portion 5a of each of the light receiving devices 5A, 5B and 5C during a period from the dark side to the bright side (Also referred to as a histogram) for each light quantity value divided into a plurality of steps, and sets the appropriate light quantity ranges ΔEh and ΔEt based on the frequency distribution.

More specifically, with respect to each unit light-receiving section 5a of each of the light-receiving devices 5A, 5B, and 5C while flowing the fine particle group k in a state in which the illumination light amount of the line-shaped light sources 30A and 30B is sufficiently stabilized, Is sampled. Further, in this case, the air injection device 6 is not operated. As shown in Fig. 18, the evaluation processing means 100 has a continuous region (diagonal lines in the figure) in which the diopter value for each light quantity value continuously exists from the dark side to the bright side in the frequency distribution hg The upper light amount value TH1 is set in correspondence with the position near the upper end of the continuous region, and the upper limit value T1 of the appropriate light amount range is set at a position spaced apart from the upper light amount value TH1 by the set light amount K1 from the upper light amount value TH1, And the lower limit value T2 of the appropriate light amount range is set at a position apart from the lower light amount value TH2 by the set light amount K2 from the lower light amount value TH2 to the dark side. The set light amounts K1 and K2 are preset as control constants.

Though not described in detail, the upper light amount value TH1 and the lower light amount value TH2 are corrected based on the light-receiving amount data of the set number obtained at the set time with the selection operation.

The appropriate light amount range? Et when the detection light is transmitted light will be described.

In the case of transmitted light, as shown in the output waveform of the transmitted light receiving device 5C in Fig. 16, when the output voltage corresponding to the light receiving amount of each unit light receiving portion 5a is within the appropriate light amount range Et for the fine particle group k (Non-separation object) is determined to be normal, and the presence of the defective fine particle or foreign matter (separation object) is determined when it deviates from the set appropriate range ΔEt. Here, the appropriate light amount range Et for transmitted light is set to a range of a predetermined upper and lower width with an output voltage level e0 for standard transmitted light from the normal fine particle being interposed.

If it is smaller than the appropriate light amount range ΔEt, the presence of defective fine particles or foreign matter (for example, black colored stone particles) having a transmittance lower than that of a normal fine particle is discriminated, and if it is larger than the appropriate light amount range ΔEt (K) of the bright side having a higher transmittance than that of the normal fine grains (k) or the presence of foreign matter. Examples of the defective fine particles (k) or foreign matter on the bright side include a foreign matter having a transmittance greater than that of the fine fine particles (k) having a light colored transparent glass piece or the like. Further, the fine fine particles (k) (K) " is a defect particle (k) having a transmittance higher than that of a normal fine particle (k).

16 shows a position where a colored portion exists, a position (denoted by e1) of a black stone, and a position where a colored portion is divided by the output voltage (light receiving amount) of the unit light receiving portion 5a In the presence position (indicated by e2), when there is foreign matter or the like having a transmittance higher than that of the normal fine grains exists below the optimum light amount range ΔEt, it is located above the optimum light amount range ΔEt as shown at position e4 As shown in FIG.

Next, the appropriate light amount range? Eh when the detection light is reflected light will be described.

In the case of reflected light, as shown in the output waveforms of the front-side reflected light receiving device 5A (or the rear-side reflected light receiving device 5B) of Fig. 17, the output voltage corresponding to the light receiving amount of each unit light receiving portion 5a The presence of a normal fine particle is discriminated in the case where it is within the appropriate light amount range ΔEh, and the presence of fine particle or foreign matter is discriminated in the case where it is out of the appropriate light amount range ΔEh. Here, the appropriate light amount range ΔEh for reflected light is set to a range of a predetermined upper and lower width with an output voltage level e0 'for standard reflected light from the normal fine particle interposed therebetween.

17 shows an example of a state in which the portion deviates downward from the optimum light amount range? Eh at a position (indicated by e1 ') where a part of the colored portion exists in the fine particle (k) And in the case where a foreign substance such as a glass piece is present, the state is shown as being displaced upward from the appropriate light amount range? Eh as indicated by the position e3 'by strong direct reflected light from the foreign matter. Although not shown, the black stones and the like are very small in reflectance, and therefore deviate greatly from the appropriate light amount range? Eh in the waveform downward.

As described above, the upper limit value T1 and the lower limit value T2 of the appropriate light amount ranges ΔEt and ΔEh (corresponding to either transmitted light or reflected light) to be set and corrected for each unit light receiving portion 5a of each light receiving device 5A, 5B, Value is stored as a lookup table for defect detection processing in the memory LUTs (forward reflected light, backward reflected light, and transmitted light LUT) in the control device 24.

The process of determining whether or not the object to be separated is the object while transferring the particle group k to be discriminated by the transfer means 3 is carried out as follows.

19, the light quantity value j of the unit light receiving portion 5a of each of the light receiving devices 5A, 5B, 5C is set to the position data i (i = 0 to [ 1]) (step 1). Next, determination processing of the light quantity value j of the unit light-receiving section 5a of each of the light-receiving devices 5A, 5B, 5C is executed (step 2). Specifically, on the basis of the light quantity value j of each of the front-side reflected light receiving device 5A and the rear-side reflected light receiving device 5B, the position data i (i = 0 to [the number of unit light receiving portions- If the light quantity value j is within the appropriate light quantity range? Eh, it is determined that the object is fine. For each unit light-receiving section 5a, if the light quantity value j is out of the appropriate light quantity range? Likewise, for the transmitted light receiving device 5C, for each unit light receiving portion 5a indicated by the position data i (i = 0 to [the number of unit light receiving portions -1])), it is determined whether or not the light quantity value j is within the appropriate light amount range Et Is determined.

When the light quantity value j of the unit light receiving portion 5a of either the front-side reflected light receiving device 5A or the rear-side reflected light receiving device 5B is out of the appropriate light amount range DELTA Eh and it is determined that the object is the object to be separated, (Steps 3, 4, and 7) after the first delay time t1 required for reaching the separation point of the air injection device 6 has elapsed.

If it is determined that the light quantity value j of any one unit light receiving section 5a of the transmitted light receiving device 5C is out of the appropriate light quantity range Et and is the object to be separated, After the elapse of the second delay time t2, a drive signal for the electromagnetic valve drive circuit 29 is output so as to eject air from the corresponding ejection nozzle 6a in the air injection device 6 (step 5, 6, 7). The electromagnetic valve drive circuit 29 actuates the electromagnetic valve 45 corresponding to the corresponding ejection nozzle 6a to eject air from the ejection nozzle 6a.

Air is jetted from each jetting nozzle 6a of the section corresponding to the position of the object to be separated, and is separated from the normal fine particles and collected in the receiving section 50 of the object to be separated. On the other hand, the fine particles which have not been discriminated from the object to be separated are recovered to the receptacle 49 for normal rotation.

The separated object recovered from the storage section 50 of the separation water recovery container is discharged to the outside from the separation water outlet 52 and the normal fine particle group k recovered from the storage section 49 of the normal recovery container is returned to the guide plate 53 And is lifted and conveyed by the lifting transport apparatus 8 for discharging, and is discharged to the outside of the apparatus through the discharge port 7. The lifting transporting apparatus 8 is provided with a lifting conveying device 8,

Next, the supply amount control means 101 will be described.

When the detected pressure is low, the supply amount control means (101) controls the feed amount control means (101) to control the supply amount of the air by the feeding means (3) more than when the detected pressure is higher than when the pressure of the air detected by the pressure sensor The operation of the conveying means 3 is controlled so as to change the conveying flow rate based on the detected pressure so as to reduce the conveying flow rate. When the detected pressure is lower than the lower limit value, the conveying of the fine group (k) To control the operation of the conveying means 3 in order to stop the conveying means 3.

That is, when the detected pressure Px of the pressure sensor 48 is higher than the predetermined switching determination value Ps2, the feed amount control means 101 adjusts the feed flow rate of the fine grain group k to the first set value, In order to change the feed flow rate on the basis of the detected pressure Px in such a manner that the feed flow rate of the grain group is adjusted to a second set value smaller than the first set value by a set amount when the pressure Px is equal to or smaller than the switching determination value Ps2, (3).

In addition, the evaluation processing means 100 performs the grain size discrimination processing while actually feeding the grain groups to be sorted, by the conveying means, and the evaluation processing means 100 The process of separating the granular object identified as the granular object to be separated by the air granulating device 6 is carried out in a tentative manner to obtain a conveying flow rate value capable of performing the separation process in an appropriate state, As a first set value.

Concretely, when the operation is carried out while feeding the fine particle group k as a test, the conveying flow rate of the vibration feeder 3B is manually changed by operating the operation panel 11 to perform the separation processing in an appropriate state The flow rate value is obtained.

Next, when the sorting process is started for the fine grains k to be sorted, the supply amount control means 101 executes the flow amount adjustment processing of the conveying means 3 based on the pressure detection. Hereinafter, this will be described in detail based on the flowchart of Fig.

When the flow rate regulating process is started, the detected pressure Px detected by the pressure sensor 48 is input (step 10), and it is judged whether or not the detected pressure Px is equal to or lower than a preset lower limit value Ps1 (step 11). If the detected pressure Px is not lower than the lower limit value Ps1 but lower than the lower limit value Ps1, then it is determined whether or not the detected pressure Px is equal to or lower than the switching determination value Ps2 set in advance as the pressure higher than the lower limit value Ps1 12). If it is determined in step 12 that the detected pressure Px is not higher than the switching determination value Ps2 but higher than the switching determination value Ps2, the flow rate is maintained at the initial flow rate, that is, the initially set initial value , And when the detected pressure Px is equal to or lower than the switching determination value Ps2, the user is notified that the air pressure is insufficient by a notification means (not shown) (for example, voice notification means or message display notification means) , And controls the operation of the conveying means 3 to adjust the conveying flow rate of the fine granular group to a second set value that is smaller than the first set value by the set amount (steps 13 and 14). Specifically, the feed flow rate of the fine grain group is adjusted to the second set value by changing the feed rate of the vibration feeder 3B. After the feed flow rate is adjusted to the second set value, the feed flow rate is maintained at the second set value.

If it is determined in step 11 that the detection pressure Px is lowered to the lower limit value Ps1 or less, it is difficult to blow off the separation object with air well, so that it is difficult to separate the object by notifying means (for example, (For example, an expression notifying means or a message display-type notifying means) notifies an abnormal state and stops the operation of the vibration feeder 3B (Steps 15 and 16).

If it is determined in step 12 that the detected pressure Px is higher than the switching determination value Ps2, the flow rate that remains as the feed flow rate, that is, the process that is maintained at the initially set first set value, Corresponds to the process of adjusting the feed flow rate to the first set value.

[Other Embodiments]

Next, another embodiment of the grain size sorter will be described.

(1) In the above embodiment, the tubular frame bodies 2A and 8A, the base frame 12, and the pair of left and right side plates 13 and 14 of the pair of lifting and transporting apparatuses 2 and 8, Instead of providing the left and right pair of side plates 13 and 14 as the main frame portion F in place of such a configuration, And a dedicated support frame that combines a plurality of cross bars or the like may be provided.

(2) In the above embodiment, a monitoring window 67 for monitoring the measurement target point J is formed in the storage case 54, and an opening 60 for exposing the monitoring window is formed on the side plate 13 However, it may be configured such that the monitoring window 67 and the opening 60 for monitoring window exposure are not provided.

In the above embodiment, although the storage case 54 functions as one accommodating body in which the illumination part storage case and the lower side illumination part storage case are integrally formed, the illumination part 4 The case and the lower illuminating section storing case for housing the front side illuminating means 4B may be constituted by respective independent housings.

(3) In the above embodiment, a pair of lifting transport apparatuses 2 and 8 are provided as lifting transport apparatuses, and the pair of lifting transport apparatuses 2 and 8 are disposed on both sides of the shooter 3C However, instead of such a structure, only one of the pair of lifting transport apparatuses 2 and 8 may be provided.

(4) In the above embodiment, a fluorescent lamp that is a line-shaped light source is used as the light source of the illumination unit. However, the present invention is not limited to such a configuration. For example, a plurality of light emitting diodes (LEDs) An array can be used.

(5) In the above-described embodiment, the light-reflecting type optical path forming means 39B for guiding the light from the measurement target portion J to the light receiving portion 5B by folding back in the optical axis direction is exemplified. The light-receiving portion 5B may receive light directly from the measurement target portion J instead of the same configuration.

(6) Although the monochrome type CCD sensor is used as the light receiving unit in the above embodiment, it may be a television camera of an image pickup tube type, or may be a CCD sensor of a color type instead of a monochrome type, The presence or absence of defective minus or foreign matter may be more accurately determined from the received light amount for each of R, G, and B.

(7) In the above embodiment, the separating means ejects air to the object to be separated and separates the object by a different path from the other object. However, the present invention is not limited to this. For example, Or may be separated by a mechanical contact action.

(8) In the above embodiment, in the evaluation processing means 100, in evaluating the grain based on the light receiving amount of the light measured by the light receiving means 5, the light receiving amount (light amount) It is determined that the light is out of the proper light amount range (Delta Eh, Delta Et), and if the light amount is out of the proper light amount range, it is determined that the light is abnormal. However, It may be constructed so as to select the small grains and the large grains by evaluating the size.

(9) In the above embodiment, the case where the grain body group is a fine grain group is exemplified, but the present invention is not limited to this, but the present invention can also be applied to, for example, resin pellets.

The present invention relates to an image forming apparatus that guides a group of granular objects such as fine grains through an inclined guide body so as to pass through a measurement target portion and determines whether or not a granular change to be a separation target based on light receiving information of light receiving means for receiving light from a measurement target portion The discrimination processing section for discriminating the discrimination result of the discrimination section.

1: Feed hopper
2, 8: lifting conveying device
2A, 8A: tubular frame body
2d and 8d:
2e and 8e:
3B: Grain supply unit
3C: inclined guide body
5A: Lower light-
5B, 5C: light receiving portion
6: Separation means (air blowing means)
6a:
7:
9:
12: Base frame
13, 14: shroud
15: Electric motor
15a: Output shaft
27: Support
28:
29:
30A, 31A: light projector
45: Control valve
54:
54A: Lighting storage case (front side lighting part storage case)
54B: upper lighting part storage case (rear lighting part storage case)
55: Lower-side light-receiving case (front-side light-receiving-unit case)
56: light-receiving case (rear light-receiving portion case)
60: opening
67: Watch window
F: Main frame part
J: Measurement target location
M1: Illumination part (upper illumination part)
M2:

Claims (12)

A slant guide body of a slant posture in which the granular material group is stacked in a fluidized state in which the granular material is flowed in one layer and in a wide width state,
In the state in which the grains group protrudes to both lateral lateral chambers of the inclined guide body in the diffusion direction of the grains group spreading in the wide state and the grains group An illumination unit provided in a state of being located at an upper position in a downward direction of the droplet grains and projecting light toward the measurement target portion,
Wherein the illumination unit is provided at an upper portion in the downward direction of the granular object group in a plan view and has a viewing angle spreading in the diffusion direction of the granular object group and has a resolution in the diffusion direction of the granular object group A light receiving unit that receives light from the measurement target portion,
And a discrimination processing section for discriminating a grain to be separated from among the grain groups passing through the measurement target portion on the basis of the light receiving information of the light receiving section,
The end portion of the illumination section is arranged so as to protrude outward beyond the end portion of the inclined guide body in the diffusion direction of the grains group in the diffusion direction of the grains group,
A lifting and conveying apparatus for lifting and transporting the group of granular grains is provided on a side of a portion of the inclined guide body which is higher than the illumination portion in a downward direction of the granular material group, And is positioned so as to be closer to the inclined guide body than the end portion of the illumination unit by being positioned inside the end portion of the illumination unit. The lifting and transporting apparatus according to claim 1, further comprising a pair of lifting and transporting devices,
Wherein the pair of lifting transport devices are arranged on both lateral sides of a portion of the inclined guide which is higher than the illumination portion in the downward direction of the grains. The grain sorting apparatus according to claim 2, wherein the light receiving section is disposed between the pair of lifting transport apparatuses. 3. The grain sorting apparatus according to claim 2, wherein one motor is provided between the pair of lifting transport apparatuses, and the pair of lifting transport apparatuses is driven by the one motor. A slant guide body of a slant posture in which the granular material group is stacked in a fluidized state in which the granular material is flowed in one layer and in a wide width state,
In the state in which the grains group protrudes to both lateral lateral chambers of the inclined guide body in the diffusion direction of the grains group spreading in the wide state and the grains group An illumination unit provided in a state of being located at an upper position in a downward direction of the droplet grains and projecting light toward the measurement target portion,
Wherein the illumination unit is provided at an upper portion in the downward direction of the granular object group in a plan view and has a viewing angle spreading in the diffusion direction of the granular object group and has a resolution in the diffusion direction of the granular object group A light receiving unit that receives light from the measurement target portion,
And a discrimination processing section for discriminating a grain to be separated from among the grain groups passing through the measurement target portion on the basis of the light receiving information of the light receiving section,
A lifting and conveying apparatus for lifting and transporting the group of granular grains is provided on a side of a portion of the inclined guide body which is higher than the illumination portion in a downward direction of the granular material group, And is positioned so as to be closer to the inclined guide body than the end of the illumination unit,
As the lifting transport device, a pair of lifting transport devices are provided,
Wherein the pair of lifting transport devices are arranged on both lateral sides of a portion of the inclined guide body which is higher than the illumination portion in the downward direction of the grain body,
Wherein said lifting transport device is constituted in a state of housing a transport operation part inside a tubular frame body extending in the vertical direction,
Wherein a pair of left and right side plates are connected to a lower end portion of the tubular frame member of each of the pair of lifting transportation devices, the base frame extending downward in a downward direction of the granular material group in a plan view, A tubular frame body and a main frame part which are provided so as to be connected to the base frame and are formed from the pair of tubular frame bodies, the base frame, and the pair of right and left side plates,
Wherein the illumination unit and the granular material supply unit for supplying the granular object group to the upper portion of the inclined guide body are supported by the main frame unit. The illumination unit according to claim 5, wherein the illuminating unit includes, in a state of being provided with a light transmitting window facing the measurement target portion and extending in the diffusion direction of the grain group, And the both end portions in the diffusion direction of the granular object group of the illumination unit housing case are connected and supported to the pair of left and right side plates. The particle sorting apparatus according to claim 6, wherein the light receiving section is formed in a narrower shape than the illumination section in the diffusion direction of the granular object group, and housed in a light receiving case connected to and supported by the illumination section storage case. The apparatus according to claim 7, wherein the grains are projected toward both lateral lateral chambers of the inclined guide body in a diffusion direction of the grains extending in a wide state, A lower illuminating section provided in a state of being located at a lower position in the descending direction of the grain body and projecting light toward the measurement target section,
The lower illuminating unit being provided at a lower position in the downward direction of the granular material group in a plan view and having a viewing angle spreading in the granular material group diffusion direction and having a resolution in the granular material group diffusion direction A lower light-receiving portion for receiving light from the measurement target portion is provided,
The lower illuminating unit includes a lower illuminating unit storage case formed in a state of being provided with a light transmitting window facing the measurement target portion and extending in the diffusion direction of the granular organ group, Of the light projecting body,
Wherein the lower light-receiving portion is formed in a narrower shape than the lower illuminating portion in the diffusion direction of the granular object group, and is accommodated in a lower light-receiving case connected to and supported by the lower illuminating portion accommodating case. The lighting apparatus according to claim 8, wherein the lighting part storage case and the lower lighting part storage case are integrally formed as a single accommodating body,
A monitoring window for monitoring the measurement target portion is formed on at least one end of both ends in the diffusion direction of the supporter group of the housing,
And an opening for exposing the monitoring window is formed at a portion of the side plate corresponding to the monitoring window. The apparatus according to any one of claims 5 to 9, further comprising: a determination unit that determines, based on the determination result of the determination processing unit, Separating means for separating the other grain groups is provided,
Wherein one of the pair of lifting and transporting devices is configured to lift and transport the group of granular materials charged into the charging hopper toward the granular material supply portion,
And the other lifting transporting device of the pair of lifting transporting devices is configured to lifting and transport the group of granular droplets after the granular object to be separated is separated by the separating device toward the discharging portion. 11. The apparatus according to claim 10, wherein the separating means includes a plurality of air ejecting portions for ejecting air for separating the granular object to be separated from the other granular objects in the separating portion, And an air ejection unit having a plurality of control valves which are capable of switching between a non-operation state in which air is not ejected and an operation state in which air is ejected,
And a valve driving unit that drives the plurality of control valves to switch between the non-operating state and the operating state,
And the determination processing unit is configured to instruct, from among the plurality of control valves, instruction information for operating a control valve corresponding to switching from the air ejection unit to the operation state to the valve driving unit based on the determination result ,
Wherein the discrimination processing section and the valve driving section are arranged on the outer side in the diffusion direction of the grains group of one of the pair of side plates and on the outer side in the diffusion direction of the grains of the other side plate In the state where they are classified and arranged,
Wherein a supporting base for supporting the granular material supply unit is provided in a state of being connected to the pair of side plates and a tubular portion through which the connection wiring between the discriminating processing unit and the valve driving unit is inserted is provided in the supporting base, A granular sorting device. The lifting and transporting apparatus according to claim 5, wherein the pair of lifting and transporting apparatuses each include a drive shaft rotatably driven about a horizontal axis in a state of being positioned on a lower end side, , ≪ / RTI >
An electric motor is provided in a state of being positioned between the pair of lifting and transporting devices in the diffusion direction of the grain group and being supported by the base frame,
And the output shaft of the electric motor and each of the drive shafts are linked together.

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