JP2016138885A - Quality screening device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a quality screening device capable of efficiently performing internal quality inspection of a plurality of screening objects.SOLUTION: A plurality of screening objects conveyed by a conveyance mechanism are shot by imaging means capable of acquiring two-dimensional position information and quality information. A control device determines the quality of each of the plurality of screening objects on the basis of the quality information input from the imaging means. A two-dimensional image of the plurality of screening objects is displayed on displaying means on the basis of the two-dimensional position information input from the imaging means. Marking processing of attaching a quality mark to each of the plurality of screening objects in the two-dimensional image is performed.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a quality sorting apparatus that sorts selection objects such as fruits and vegetables such as onions and strawberries according to internal quality such as sugar content and / or quality related to external quality such as size.

  A transport mechanism for transporting a sorting object such as an agricultural product, a light projecting unit for projecting sorting light onto the sorting object transported by the transport mechanism, and a sorting object for sorting light from the light projecting unit. There has been proposed a quality inspection device including a light receiving unit that receives light through the light receiving unit (see Patent Document 1).

  The quality inspection apparatus can non-destructively inspect the internal quality of the selection target based on spectral data obtained by spectrally separating the light received by the light receiving unit.

  However, in the conventional quality inspection apparatus, it is necessary to individually project and receive the sorting light for a plurality of sorting objects, and there is room for improvement in terms of work efficiency.

  That is, in the conventional configuration, the transport mechanism transports a plurality of sorting objects in a state aligned in the transport direction, and throws the sorting objects on the sorting objects aligned in a row. Since the light processing unit and the light receiving unit are configured to sequentially perform spectral processing, considerable time is required to inspect all the internal qualities of the plurality of selection objects.

JP 2012-122876 A

  The present invention has been made in view of such prior art, and an object of the present invention is to provide a quality sorting apparatus capable of efficiently inspecting a plurality of sorting objects regarding internal quality such as sugar content and external quality such as size. .

  In order to achieve the above object, the present invention has a mounting surface having a predetermined length in each of the transport direction and the transport width direction orthogonal to the transport direction, and is placed in a distributed state on the mounting surface. A transport mechanism for transporting a plurality of sorting objects; an imaging unit capable of capturing a predetermined measurement area of the placement surface and acquiring two-dimensional position information and quality information of the measurement area; and a display unit. And a control device, wherein the control device determines the quality of each of the plurality of selection objects based on the quality information input from the imaging means, and generates two-dimensional position information input from the imaging means. There is provided a quality selection device for displaying a two-dimensional image of the measurement region on the display means and performing a marking process for assigning the respective qualities to the plurality of selection objects in the two-dimensional image.

  For example, the imaging unit is capable of acquiring spectral information as the quality information, and the control device determines that the quality includes a defective product in the selection target in the measurement area based on the spectral information. In the marking process, when it is determined that there is a defective product, a process for identifying and displaying the selection object determined as the defective product in the two-dimensional image from other selection objects is performed. Configured as follows.

  In one form, the said mounting surface may have the selection area | region which can carry out a manual selection process in the conveyance direction downstream from the said measurement area | region.

In another embodiment, the quality sorting apparatus includes a pickup mechanism that can individually take out and carry out the plurality of sorting objects in a sorting area provided on the downstream side in the transport direction from the measurement area on the placement surface. It is done.
In this case, the control device takes out the pick-up mechanism in the sorting area so as to take out a sorting target of a predetermined quality from the placement surface and carry it out to a predetermined place outside the transport path by the transport mechanism. Operate.

  The quality sorting apparatus according to the present invention may be provided with an outer diameter sorting unit that performs sorting based on the size of the sorting object sent from the transport mechanism through the sorting area.

  In order to achieve the above object, the present invention is capable of accommodating a plurality of sorting objects in a dispersed state on a single plane and having an upper opening, and the transport container. A transport mechanism; imaging means capable of acquiring two-dimensional position information and quality information of a plurality of sorting objects accommodated in the transport container transported by the transport mechanism; and a control device, When it is detected that the transport container has reached the measurement region in the transport path by the transport mechanism, the image pickup means is operated and two-dimensional position information and quality of a plurality of selection objects stored in the transport container The information is obtained, the quality of each of the plurality of sorting objects is determined based on the quality information, and the quality is recognized based on the two-dimensional position information. object Providing quality sorting device that is configured to store in association with each of the housing positions.

The imaging unit may be able to acquire spectral information as the quality information.
Instead of this, or in addition, the imaging means may be able to acquire size information as the quality information.

In one form, the quality selection device is provided with display means capable of displaying information.
In this case, the control device causes the display unit to display the quality of each of the plurality of sorting objects accommodated in the transfer container in a state in which the quality is associated with the accommodation positions of the plurality of sorting objects.
Preferably, the transport mechanism is provided with a sorting region on the downstream side in the transport direction from the measurement region, and the control device confirms that the transport container having acquired two-dimensional position information and quality information has reached the sorting region. When detected, each of the plurality of sorting objects accommodated in the transport container is configured to be displayed on the display means in a state in which the quality is associated with the accommodation positions of the plurality of sorting objects.

In another embodiment, the quality sorting apparatus is provided with a pick-up mechanism that can individually take out and carry out a plurality of sorting objects from the transport container in a sorting area provided downstream in the transport direction from the measurement area.
In this case, the control device operates the pickup mechanism so as to take out a selection target of a predetermined quality from the transfer container in the selection area and carry it out to a predetermined place outside the transfer path by the transfer mechanism. Let

  In order to achieve the above object, the present invention has mounting surfaces each having a predetermined length in the transport direction and the transport width direction orthogonal to the transport direction, and is placed in a distributed state on the mounting surface. A transport mechanism for transporting a plurality of sorting objects; an imaging unit capable of capturing a predetermined measurement region of the placement surface and acquiring two-dimensional position information and spectral information of the measurement region; and the measurement region A marking device that performs marking on the selection target on the placement surface on the downstream side in the transport direction, and a control device, the control device based on the spectral information input from the imaging means It is determined whether or not there is a defective product in the sorting object in the case, and when it is determined that there is a defective product, two-dimensional position information of the defective product is acquired as defective product position information, and the defective product position Based on the information Providing quality sorting device that actuates the grayed device to mark the defective.

  For example, the marking device may include a support frame and a plurality of inkjet nozzles supported by the support frame so as to be arranged at predetermined intervals in the transport width direction.

Preferably, a reference mark is attached to the mounting surface at predetermined intervals along the transport direction.
In this case, the control device acquires relative position information of the defective product with respect to the reference mark as defective product position information, and determines the plurality of inkjet nozzles based on the relative position of the defective product with respect to the reference mark in the conveyance width direction. Among these, the inkjet nozzle to be operated can be specified, and the specified inkjet nozzle can be operated at a timing based on the relative position of the defective product in the transport direction with respect to the reference mark and the transport speed of the transport mechanism.

Preferably, the placement surface is configured such that a hand sorting area is defined on the downstream side in the transport direction from the marking device.
The quality sorting apparatus according to the present invention may include an outer diameter sorting unit that performs sorting based on the size of a sorting object sent from the transport mechanism via the manual sorting area.

  In order to achieve the above object, the present invention is arranged in parallel with a gap in the transport direction with the axial direction along the transport width direction orthogonal to the transport direction, and is operated by power from a drive source. A plurality of conveying rollers that are rotationally driven, a light projecting unit and a plurality of light receiving units that are vertically opposed to each other across the plurality of conveying rollers, and a plurality of optically connected to the plurality of light receiving units A spectroscope, a marking device, and a control device, wherein the light projecting unit selects light toward a measurement region formed by a gap between a predetermined pair of adjacent transport rollers of the plurality of transport rollers. The plurality of light receiving units are arranged to project light from the light projecting unit that respectively transmits a plurality of sorting objects arranged in parallel along the axial direction of the transport roller in the measurement region. Can receive light The marking device is arranged in parallel along the axial direction of the feed roller, and the marking device is arranged on the downstream side in the transport direction from the measurement region, and at a position corresponding to each of the plurality of light receiving units in the axial direction of the transport roller. The plurality of sorting objects are configured to be individually marked, and the control device includes a plurality of sorting objects arranged in parallel in the measurement region based on spectral information input from the plurality of spectrometers. If it is determined that there is a defective product, the marking is performed so that marking is performed at the position in the axial direction of the transport roller corresponding to the light receiving unit that has received the transmitted light of the selection target determined to be defective. A quality sorting device for operating the device is provided.

Preferably, the plurality of transport rollers are arranged such that a hand sorting area is defined on the downstream side in the transport direction from the marking device.
In this case, the quality sorting apparatus according to the present invention is provided with an outer diameter sorting unit that performs sorting based on the size of the sorting objects sent from the plurality of transport rollers through the manual sorting area. obtain.

  According to the quality selection apparatus according to one aspect of the present invention, a plurality of selection objects that are conveyed in a distributed state by the conveyance mechanism are photographed by an imaging unit that can acquire two-dimensional position information and quality information, and the control apparatus includes: Based on the quality information input from the imaging unit, the quality of each of the plurality of selection objects is determined, and based on the two-dimensional position information input from the imaging unit, a two-dimensional image of the measurement region is displayed on the display unit. Is configured to perform a marking process for attaching the respective qualities to the plurality of sorting objects in the two-dimensional image, and efficiently performing an internal quality inspection on the plurality of sorting objects, Sorting processing for a plurality of sorting objects can be performed efficiently.

  In addition, according to the quality sorting apparatus according to another aspect of the present invention, the control device determines that the transport container that accommodates a plurality of sorting objects in a distributed state on the same plane has reached the measurement region in the transport path by the transport mechanism. Is detected, the control device operates the imaging means to acquire two-dimensional position information and quality information of a plurality of sorting objects accommodated in the transport container, and the plurality of sorting objects are based on the quality information. And determining the quality of each of the plurality of sorting objects in the transport container to be recognized based on the two-dimensional position information, and storing the quality in association with the respective storage positions of the plurality of sorting objects. Therefore, the quality of the sorting object can be determined without transferring the sorting object from the transport container used for transfer to the container for quality inspection by the producer of the sorting object such as tomato, strawberry and peach. And sorting subsequent processing can be efficiently performed.

  According to the quality selection apparatus according to still another aspect of the present invention, a plurality of selection objects conveyed in a dispersed state by the conveyance mechanism are photographed by an imaging unit capable of acquiring two-dimensional position information and spectral information, and the control apparatus Determines whether or not there is a defective product among the plurality of selection objects photographed based on the spectral information input from the imaging means. If it is determined that there is a defective product, the two-dimensional of the defective product is determined. Since it is configured to acquire position information as defective product position information and to mark the defective product by operating a marking device based on the defective product position information, internal quality inspection for a plurality of sorting objects is efficient Therefore, the defective product sorting process can be performed efficiently.

  According to the quality sorting apparatus according to still another aspect of the present invention, the sorting light is projected toward the measurement region formed by the gap between a predetermined pair of adjacent conveying rollers among the plurality of conveying rollers. An axis of the transporting roller is arranged so that it can receive the sorting light from the projecting unit that has passed through a plurality of sorting objects arranged in parallel along the axial direction of the transporting roller in the measurement region. A plurality of light receiving units are arranged in parallel along the direction, and the control device is arranged in parallel in the measurement region based on spectral information input from a plurality of spectrometers optically connected to the plurality of light receiving units. If it is determined that there is a defective product among the plurality of sorting objects, the Markin is positioned at the position in the axial direction of the conveying roller corresponding to the light receiving unit that has received the transmitted light of the sorting object that has been determined to be defective. Since operating the marking device to perform, by performing an internal quality inspection for a plurality of sorting objects efficiently, it is possible to efficiently perform screening process defective products.

FIG. 1 is a schematic plan view of a quality selection device according to Embodiment 1 of the present invention. FIG. 2 is a partial schematic plan view of the vicinity of the hand sorting area in the quality sorting apparatus according to the first embodiment. FIG. 3 is a schematic plan view of the quality selection apparatus according to Embodiment 2 of the present invention. FIG. 4 is a schematic diagram of display means in the quality sorting apparatus according to the second embodiment. FIG. 5 is a schematic plan view of a quality selection apparatus according to Embodiment 3 of the present invention. 6 is a schematic cross-sectional view taken along the line VI-VI in FIG. FIG. 7 is a schematic cross-sectional view taken along the line VII-VII in FIG. FIG. 8 is a schematic plan view of a quality selection apparatus according to Embodiment 4 of the present invention. FIG. 9 is a schematic diagram of display means in the quality selection apparatus according to the fourth embodiment. FIG. 10 is a schematic plan view of a quality selection apparatus according to Embodiment 5 of the present invention.

Embodiment 1
Hereinafter, a preferred embodiment of a quality sorting apparatus according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows a schematic plan view of a quality sorting apparatus 1 according to the present embodiment.

  The quality sorting apparatus 1 according to the present embodiment is configured to inspect the internal quality of a plurality of sorting objects such as onions in a non-destructive manner and perform sorting processing according to the internal quality.

Specifically, as shown in FIG. 1, the quality sorting device 1 includes a transport mechanism 10 that transports a sorting object, an imaging unit 30, a marking device 50, and a control device 100.
In addition, the code | symbol 80 in FIG. 1 is accommodating parts, such as a container in which the selection target object which should be test | inspected is accommodated.

  The transport mechanism 10 has a mounting surface 10A having a predetermined length in each of the transport direction X and the transport width direction Y orthogonal to the transport direction, and is placed on the placement surface 10A in a distributed state. A plurality of sorting objects can be transported.

In the present embodiment, the transport mechanism 10 includes a drive roller 11 that is operatively connected to a drive source (not shown) with an axial direction along the transport width direction, parallel to the drive roller 11 and the drive roller 11. The driving roller 11 includes a driven roller 12 spaced apart in the transport direction X, and an endless belt 15 wound around the driving roller 11 and the driven roller 12.
In this case, the rectangular section defined by the belt body 15 in plan view forms the mounting surface 10A.

  Alternatively, the transport mechanism 10 may be configured to have a plurality of transport rollers (not shown) arranged in parallel in the transport direction X with the axial direction along the transport width direction Y. is there.

  The plurality of transport rollers are operatively connected to a drive source and rotated about an axis, and the plurality of transport rollers are driven to rotate about an axis to transport the plurality of sorting objects.

  In this replacement mode, the conveyance roller located on the most upstream side in the conveyance direction, the conveyance roller located on the most downstream side in the conveyance direction, a virtual line connecting the longitudinal ends of the plurality of conveyance rollers, and the plurality of the plurality of conveyance rollers A rectangular section in plan view defined by an imaginary line connecting the other longitudinal ends of the transport rollers forms the mounting surface.

The imaging means 30 is arranged so as to photograph a predetermined measurement area 10a (see FIG. 1) in the placement surface 10A.
The imaging unit 30 is configured to be able to acquire two-dimensional position information and spectral information of the measurement region 10a.
For example, a hyperspectral camera can be suitably used as the imaging unit 30.

Preferably, the measurement area 10a is in a dark room state.
According to such a configuration, it is possible to prevent the influence of disturbance light as much as possible when the imaging unit 30 captures the measurement region 10a.

  As shown in FIG. 1, the marking device 50 is configured to perform marking on a selection target on the placement surface 10a on the downstream side in the transport direction from the measurement region 10a.

In the present embodiment, as shown in FIG. 1, the marking device 50 is parallel to the support frame 51 fixedly installed so as to straddle the mounting surface 10 a in the transport width direction Y along the transport width direction. A plurality of inkjet nozzles 55 (1), 55 (2),... Supported by the support frame so as to be disposed.
In the illustrated form, seven inkjet nozzles are arranged in an array.

The control device 100 controls operation of the imaging unit 30 and the marking device 50.
Specifically, the control device 100 operates the imaging unit 30 so that all of the plurality of selection objects conveyed by the conveyance mechanism 10 are imaged once in the measurement region 10a.

  For example, as shown in FIG. 1, the reference mark M is provided on the outer surface of the belt body 15 at equal intervals in the transport direction X, and the control device 100 determines that one reference mark M is a predetermined shooting start position. When it is detected that the first reference mark M and the second reference mark M have been reached, the imaging means 30 is operated so as to photograph the region sandwiched between the one reference mark M and the next reference mark M as the measurement region 10a.

Similarly, when the control device 100 detects that the next reference mark M has reached the photographing start position, an area sandwiched between the next reference mark M and the next reference mark M is measured area 10a. The image pickup means 30 is operated so as to take a picture.
The arrival of the reference mark M at the photographing start position can be determined based on a signal from the optical passage detection sensor 70, for example.

  With such a configuration, all of the plurality of sorting objects transported by the transport mechanism 10 can be photographed once in the measurement region 10a.

  The control device 100 determines whether or not there is a defective product in the selection object located in the measurement region 10a based on the spectral information (hyperspectral signal) input from the imaging means 30.

  When it is determined that there is no defective product, the control device 100 does not operate the marking device 50 and the marking object in the measurement region 10a is not marked.

  On the other hand, when it is determined that a defective product exists, the control device 100 acquires the two-dimensional position information of the defective product as defective product position information, and operates the marking device 50 based on the defective product position information. To mark the defective product.

  In the present embodiment, the control device 100 acquires relative position information of the defective product with respect to the reference mark M as defective product position information, and based on the relative position in the width direction of the defective product with respect to the reference mark M. Among the plurality of inkjet nozzles 55 (1), 55 (2),..., The inkjet nozzle to be operated is specified (that is, the plurality of inkjet nozzles 55 (1), 55 (parallel to the conveyance width direction). 2), the inkjet nozzle corresponding to the defective product is specified in the transport width direction), and the timing based on the relative position of the defective product in the transport direction with respect to the reference mark M and the transport speed of the transport mechanism 10. Thus, the specified inkjet nozzle can be operated.

  Preferably, a passage detection sensor 75 is provided in the vicinity of the marking device 50, and the reference mark M corresponding to a plurality of sorting objects (photographed sorting object group) photographed in the measurement region 10a is used as the passage detection sensor. By detecting at 75, it can be configured to detect that the photographed sorting object group has reached the marking area to be marked by the marking device 50.

As shown in FIG. 1, in the present embodiment, the placement surface 10 </ b> A is configured to define a hand sorting area 10 b on the downstream side in the transport direction from the marking device 50.
The manual sorting area 10b is a space where an operator removes the sorting target marked as defective from the placement surface 10A.

  Here, as shown in FIG. 1, the control is performed by taking as an example a case where 14 selection objects are arranged in a dispersed state in the measurement area when one reference mark M reaches the imaging start position. The operation control of the imaging unit 30 and the marking device 50 by the device 100 will be described in more detail.

  When the one reference mark M reaches the photographing start position, the control device 100 photographs the region defined by the one reference mark M and the next reference mark M as the measurement region 10a, and the imaging unit 30 Whether or not there is a defective product among the 14 sorting objects in the measurement region 10a is determined based on the spectral information from

For example, if the control device 100 is NO. 3 selection object and NO. Assume that it is determined that nine sorting objects are defective.
In this case, the control device 100 performs NO. 3 and the inkjet nozzle corresponding to the position in the conveyance width direction of the selection object; The inkjet nozzle corresponding to the position in the transport width direction of the 9 sorting objects is specified.

  In the example of FIG. As the inkjet nozzles corresponding to the transport width direction position of the sorting object 3, the fourth nozzle 55 (4) and the fifth nozzle 55 (5) are specified, and The seventh nozzle 55 (7) is specified as an inkjet nozzle corresponding to the position in the transport width direction of the nine sorting objects.

  And the said control apparatus 100 is NO. When the sorting object No. 3 reaches the marking region, the fourth nozzle 55 (4) and the fifth nozzle 55 (5) are operated, and NO. Mark the 3 sorting objects.

FIG. 2 is a schematic partial plan view of the quality sorting apparatus 1 in a state where 14 sorting objects pass through the marking area and are conveyed to the hand sorting area 10b.
The hatching in FIG. 2 indicates the marking.

  Similarly, the control apparatus 100 is determined to be NO. When the sorting object No. 9 reaches the marking area, the seventh nozzle 55 (7) is operated and NO. Mark 9 objects to be selected.

  In the manual sorting area 10b, the operator can remove the defective sorting target (in this example, the No. 3 and NO. 9 sorting targets) from the transport mechanism 10 using the marking as a mark. it can.

Thus, according to the quality sorting apparatus 1 according to the present embodiment, an internal quality inspection can be simultaneously performed on a plurality of sorting objects.
Accordingly, the conventional internal quality inspection is sequentially performed on each of the plurality of sorting objects aligned in one row while the plurality of sorting objects are transported in a state aligned in one row along the transport direction. The internal quality inspection can be efficiently performed as compared with the configuration.

  As shown in FIG. 1, the quality sorting apparatus 1 according to the present embodiment further sorts a sorting target object sent from the transport mechanism 10 via the manual sorting area 10b based on size. It has an outer diameter sorting unit 20 for performing

The outer diameter sorting unit 20 has a plurality of sorting drums arranged in series in the transport direction.
In the present embodiment, the outer diameter sorting unit 20 separates a sorting target smaller than the first outer diameter among the sorting targets sent from the transport mechanism 10 from the transport path as a first sorting target. A first sorting drum 21 (1) and a sorting object that is disposed on the downstream side in the transport direction from the first sorting drum 21 (1) and is smaller than a second outer diameter that is larger than the first outer diameter. A second sorting drum 21 (2) formed with a second sorting hole to be separated from the transport path as the second sorting object; and disposed on the downstream side in the transport direction from the second sorting drum, and the second outer diameter A third sorting drum 21 (3) having a third sorting hole for separating a sorting object smaller than the third outer diameter, which is larger than the third outer diameter, from the common transport path as a third sorting object. .
Reference numeral 25 in FIG. 1 is a conveying roller that conveys the object to be selected between the selecting drums, and reference numeral 81 is an accommodating portion that accommodates an object to be selected larger than the third outer diameter.

Embodiment 2
Hereinafter, another embodiment of the quality selection apparatus according to the present invention will be described with reference to the accompanying drawings.
FIG. 3 shows a schematic plan view of the quality selection device 2 according to the present embodiment.
In FIG. 3, the same members as those in the first embodiment are denoted by the same reference numerals.

In the quality sorting apparatus 2 according to the present embodiment, the marking device 50 is deleted and a display unit 90 is added as compared with the quality sorting apparatus 1 according to the first embodiment.
That is, as shown in FIG. 3, the quality selection device 2 according to the present embodiment includes the transport mechanism 10, the imaging unit 30, the control device 100, and the display unit 90.

  In the present embodiment, the control device 100 determines whether or not there is a defective product among the selection objects located in the measurement region 10a based on the spectral information input from the imaging unit 30. The points are common to the first embodiment, but differ in the following points.

  That is, the control device 100 displays the two-dimensional image of the measurement region 10 a on the display unit 90 based on the image data input from the imaging unit 30 and the measurement based on the spectral information from the imaging unit 30. When it is determined that there is a defective product in the selection target in the region 10a, a marking process is performed on the selection target determined as the defective product in the two-dimensional image.

  FIG. 4 shows NO. Of 14 sorting objects photographed in the measurement area 10a. 3 and NO. 9 shows a display example of the display means 90 when it is determined that the two sorting objects 9 are defective.

  In the present embodiment, the placement surface 10A is configured such that a hand sorting area 10b is defined on the downstream side in the transport direction from the measurement area 10a, and the operator is displayed on the display means 90. Based on the information, it is possible to remove defective products in the hand sorting area 10b.

  Preferably, as shown in FIGS. 3 and 4, as a plurality of reference marks provided on the outer surface of the belt body 15 at equal intervals in the transport direction, a plurality of reference marks M1 that can be distinguished and visually recognized by an operator, M2,... Can be provided.

  According to such a configuration, when an operator removes a selection object marked as defective in the display unit 90 from a plurality of selection objects actually conveyed by the conveyance mechanism 10. The positions of the reference marks M1, M1,... Can be used as a guide.

  That is, in the example shown in FIG. 4, the operator selects from the display information on the display means 90 the sorting target located at the forefront in the transport direction and at the center in the transport width direction among the sections defined by the reference mark “M3”. It is possible to grasp that the sorting object (No. 9 sorting object) located at the center in the transporting direction and at one end in the transporting direction (No. 3 sorting target object) is a defective product. it can.

  Then, the operator grasps the virtual section corresponding to the section using the corresponding reference mark “M3” as a mark in the actual transport mechanism 10, and is the forefront in the transport direction and the center in the transport width direction among the virtual sections. Should be recognized as a sorting object to be removed (No. 3 sorting object), and the sorting object located in the transport direction center and at one end in the transport direction should be removed from the virtual section. It can be recognized as a selection object (NO.3 selection object).

  Similarly to the first embodiment, the quality sorting apparatus 2 according to the present embodiment having such a configuration can also efficiently perform internal quality inspection on a plurality of sorting objects.

Embodiment 3
Hereinafter, another embodiment of the quality selection apparatus according to the present invention will be described with reference to the accompanying drawings.
FIG. 5 shows a schematic partial plan view of the quality selection device 3 according to the present embodiment.
In FIG. 5, the same members as those in the first embodiment are denoted by the same reference numerals.

  The quality sorting apparatuses 1 and 2 according to the first and second embodiments are configured to simultaneously perform internal quality inspections of a plurality of sorting objects using the imaging unit 30 capable of acquiring two-dimensional position information and spectral information. It is configured.

  On the other hand, the quality sorting apparatus 3 according to the present embodiment performs the internal quality inspection of the plurality of sorting objects based on the spectral information of the sorting light obtained through the plurality of sorting objects whose internal quality should be inspected. Are configured to perform simultaneously.

FIG. 6 is a cross-sectional view taken along line VI-VI in FIG.
FIG. 7 is a sectional view taken along line VII-VII in FIG.
Specifically, as shown in FIGS. 5 to 7, the quality selection device 3 includes a plurality of transport rollers 110, a light projecting unit 130, a plurality of light receiving units 140, a plurality of spectrometers 150, and a marking device. 50 and the control device 100.

  The plurality of transport rollers 110 are arranged in parallel with a gap in the transport direction X in a state where the axial direction is along the transport width direction Y orthogonal to the transport direction X, and from a drive source (not shown). It is rotatively driven by the power of.

As shown in FIG. 5, the plurality of transport rollers 110 are configured such that a plurality of sorting objects can be arranged in parallel along the axial direction of the transport rollers 110 in the gap between a pair of adjacent transport rollers 110. The plurality of sorting objects are conveyed by being driven to rotate around the axis by the power from the driving source.
As shown in FIG. 5, in the present embodiment, seven sorting objects can be arranged in parallel in the gap.

  As shown in FIG. 6, the light projecting unit 130 and the plurality of light receiving units 140 are disposed to face each other with the plurality of transport rollers 110 interposed therebetween.

  Specifically, as shown in FIGS. 5 and 6, the light projecting unit 130 is directed toward a measurement region 110 a formed by a gap between a predetermined pair of adjacent transport rollers 110 among the plurality of transport rollers 110. So that the sorting light can be projected.

In the illustrated form, the plurality of transport rollers 110 include first to ten transport rollers 110 (1) to 110 (10) arranged in order from the front to the rear in the transport direction.
The gap between the seventh transport roller 110 (7) and the eighth transport roller 110 (8) forms the measurement area 110a.

As shown in FIGS. 5 to 7, the plurality of light receiving units 140 individually select the sorting light through the plurality of sorting objects arranged in parallel along the axial direction of the transport roller 110 in the measurement region 110 a. They are arranged in parallel along the axial direction of the conveying roller 110 so as to receive light.
As described above, in the present embodiment, seven sorting objects can be arranged in the gap, and therefore, seven light receiving portions 140 (1) to 140 (7) are provided. It has been.

The plurality of spectrometers 150 are optically connected to the plurality of light receiving units 140, respectively, and individually classify the selection light received by the plurality of light receiving units 140 to create a spectrum signal.
In the present embodiment, seven spectroscopes 150 (1) to 150 (7) optically connected to the seven light receiving sections 140 (1) to 140 (7) are provided.

  The marking device 50 is disposed on the downstream side in the transport direction from the measurement region 110a, and the marking device 50 is disposed on the plurality of sorting objects at positions corresponding to the plurality of light receiving units in the axial direction of the transport roller 110. It is configured so that individual marking can be performed.

In the present embodiment, as shown in FIG. 5, the marking device 50 includes a support frame 51 fixedly installed so as to straddle the plurality of transport rollers 110 in the transport width direction Y, and the transport width direction Y. And a plurality of inkjet nozzles 55 supported by the support frame 51 so as to be arranged in parallel.
In the illustrated form, first to seventh nozzles 55 (1) to 55 (7) are provided as the plurality of inkjet nozzles 55.

  The control device 100 determines whether or not there is a defective product among the plurality of selection objects arranged in parallel in the measurement region 110a based on the spectrum signals input from the plurality of spectrometers 150. When it is determined that there is a mark, the marking device 50 is operated so as to perform marking at the position in the axial direction of the transport roller corresponding to the light receiving unit 140 that has received the transmitted light of the selection object determined to be defective. Let

  Preferably, the quality sorting device 3 is provided with a line sensor (not shown) that detects that the sorting object has reached the position marked by the marking device 50 in the transport direction, and the control device 100 The marking device 50 can be configured to operate using a signal from the line sensor as a trigger signal.

  As shown in FIG. 5, in the present embodiment, the plurality of transport rollers 110 are arranged such that a hand sorting area 110b is defined on the downstream side in the transport direction from the marking device 50, and the hand sorting is performed. The sorting object marked by the operator in the area 110b can be removed from the transport path.

In the example shown in FIG. 5, as described above, the gap between the seventh and eighth transport rollers 110 (7) and 110 (8) is the measurement area 110a, and the fifth and sixth transport rollers A gap between 110 (5) and 110 (6) is a marking area to be marked by the marking device 50.
An area formed by the first to fifth transport rollers 110 (1) to 110 (5) is a hand sorting area 110b.

  Here, the state shown in FIG. 5 will be described. The transport direction among a plurality of sorting objects arranged in parallel in the gap between the first and second transport rollers 110 (1) and 110 (2). A sorting object that is positioned second from the left facing forward, and a plurality of sorting objects that are arranged in parallel in the gap between the second and third transport rollers 110 (2) and 110 (3). Among them, the sorting object that is located sixth from the left facing the front in the transport direction has already been removed as a defective product.

  On the other hand, among the plurality of sorting objects arranged in parallel in the gap between the third and fourth carrying rollers 110 (3) and 110 (4), the sorting object that is located sixth from the left facing forward in the conveying direction. An object (a hatched sorting object) and a plurality of sorting objects arranged in parallel in a gap between the fourth and fifth transport rollers 110 (4) and 110 (5). The sorting object that is positioned third from the left (hatched sorting object) is judged as a defective product and is marked by the marking device 50, and the operator uses this marking as a mark. It will be removed by work.

  Furthermore, among the plurality of sorting objects arranged in parallel in the marking area defined by the gap between the fifth and sixth transport rollers 110 (5) and 110 (6), the four from the left facing the front in the transport direction. The sorting object positioned in the second position (the hatched sorting object) is determined to be defective and is marked by the marking device 50.

  Also in the quality sorting apparatus 3 according to the present embodiment having such a configuration, as in the first and second embodiments, the internal quality inspection for a plurality of sorting objects can be performed efficiently.

  In the present embodiment, the outer diameter sorting unit 20 performs sorting based on the size of sorting objects sent from the plurality of transport rollers 110 through the hand sorting area 110b. Be placed.

Embodiment 4
Hereinafter, still another embodiment of the quality selection apparatus according to the present invention will be described with reference to the accompanying drawings.
FIG. 8 shows a schematic plan view of the quality selection device 4 according to the present embodiment.
In addition, in the figure, the same code | symbol is attached | subjected to the same member in each said embodiment.

  The quality sorting device 4 according to the present embodiment can be used when the sorting object 510 such as tomatoes, strawberries, peaches, etc. produced by the producer is brought into the fruit sorting area where the quality sorting device 4 is installed. The quality of the sorting object 510 is determined in the state of being accommodated in the transport container 500, and the sorting process can be performed based on the determination result.

  Specifically, as shown in FIG. 8, the quality selection device 4 includes the transport container 500, the transport mechanism 10, the imaging unit 30, and the control device 100.

  The transport container 500 can be transported while accommodating sorting objects 510 such as tomatoes, strawberries and peaches in a dispersed state on a single plane, and has an opening at the top.

The transport mechanism 10 can transport the plurality of transport containers 500 in a serial state in the transport direction.
In FIG. 8, three transfer containers of the first transfer container 500 (1), the second transfer container 500 (2), and the third transfer container 500 (3) are transferred in series from the beginning in the transfer direction. .

The imaging means 30 can acquire two-dimensional position information and quality information of a plurality of sorting objects 510 accommodated in the transport container 500.
The quality selection apparatus 4 according to the present embodiment has a hyperspectral camera as the imaging means 30, and as the quality information, spectral information capable of determining the internal quality of the selection object such as sugar content, Size information capable of determining the size of the sorting object can be acquired.

  As shown in FIG. 8, in the present embodiment, the imaging means 30 is arranged so as to photograph the transport container 500 (2) positioned in the measurement region 10a in the transport path by the transport mechanism 10. Has been.

Preferably, the quality selection device 4 may include a light source 40 that emits light from above the transport container 500 (2) located in the measurement region 10a toward the accommodation space of the transport container 500 (2).
As the light source 40, for example, a halogen lamp, a xenon lamp, an LED lamp, or the like capable of irradiating light having a wavelength in the near infrared region is used.
By providing the light source 40, spectral information can be acquired with high accuracy.

More preferably, the imaging space including the transport container 500 (2) and the light source 40 reaching the measurement region 10a can be set in a dark room state.
According to such a configuration, the influence of disturbance light can be prevented as much as possible when the spectral information is detected by the imaging means 30.

When the control device 100 detects that one transport container 500 has reached the measurement region 10a in the transport path by the transport mechanism 10, the control device 100 is accommodated in the one transport container 500 located in the measurement region 10a. The imaging means 30 is operated so as to acquire the two-dimensional position information and quality information of the plurality of sorting objects 510.
Whether or not the one transport container 500 (the second transport container 500 (2) in FIG. 8) has reached the measurement region 10a is determined based on, for example, a signal from the sensor 70.

  The control device 100 recognizes the storage positions of the plurality of sorting objects 510 in the one transport container 500 based on the position information input from the imaging unit 30, and then inputs from the imaging unit 30. The quality of the selection objects 510 is determined based on the quality information.

In the present embodiment, the control device 100 determines a grade regarding specific internal quality such as sugar content (internal quality determination) based on spectroscopic information (hyperspectral signal) and a class determination regarding the size based on size information (external quality). Determination).
Of course, as the quality determination, only one of the internal quality determination and the external quality determination can be performed.

  The class determination and the class determination can be performed, for example, by comparison with respective threshold values stored in advance in the control device 100.

  That is, for example, the control device 100 previously stores a first internal quality threshold value related to a specific internal quality such as sugar content, a second internal quality threshold value greater than the first internal quality threshold value, and a first flat area threshold value related to a flat area. And a second plane area threshold value larger than the first plane area threshold value is stored.

In this case, the control device 100 determines the grade when the value of the specific internal quality of the one selection target 510 calculated based on the spectral information of the one selection target 510 is larger than the second internal quality threshold. Is judged as “excellent”, the grade is judged as “excellent” when it is larger than the first internal quality threshold but less than the second internal quality threshold, and when it is smaller than the first internal quality threshold. Can be determined as “good”.
Of course, it is also possible to provide a grade “bad” in the grade determination.

Further, the control device 100 sets the class to “L” when the plane area of the one sorting object 510 calculated based on the size information of the one sorting object 510 is larger than the second plane area threshold. The class is determined to be “M” if it is greater than the first plane area threshold but less than or equal to the second plane area threshold, and the class is determined to be “S” if it is less than the first plane area threshold. Can be determined.
Of course, in the class determination, it is possible to provide a class “non-standard”.

  The quality sorting device 4 according to the present embodiment is configured to be able to manually sort the plurality of sorting objects 510 based on quality determination by the control device 100.

Specifically, as shown in FIG. 8, the quality selection device 4 further includes display means 90.
The control device 100 causes the display unit 90 to display a two-dimensional image of the plurality of sorting objects 510 in the transport container 500 based on the two-dimensional position information input from the imaging unit 30, and Each quality is displayed on the two-dimensional image of the selection object 510.

FIG. 9 shows a display example of the display means 90.
FIG. 9 shows the quality judgment result of the sorting object 510 accommodated in the first transport container 500 (1) in FIG.

  In the display example shown in FIG. 9, each planar shape of the plurality of selection objects 510 accommodated in the first transport container 500 (1) is displayed at a position corresponding to each accommodation position. A grade and a class are displayed in the planar shape.

  In FIG. 9, symbols indicating the ranks of “L”, “M”, and “S” are displayed before “/ (slash)”, and “excellent” is displayed after “/ (slash)”. Symbols “A”, “B”, and “C” indicating grades corresponding to “excellent” and “good” are displayed.

  That is, in the example shown in FIG. 9, among the plurality of sorting objects 510 accommodated in the first transport container 500 (1), the top in the transport direction (the leftmost in FIGS. 8 and 9) and the transport direction The selection object 510 (1) located on the rightmost side (uppermost in FIGS. 8 and 9) is determined to be the class “L” and the class “excellent”.

  Further, the sorting object 510 (2) positioned immediately behind the sorting object 510 (1) with respect to the transport direction is determined to be class “M” and class “Excellent”, and the sorting object with respect to the transport direction. The selection object 510 (3) located immediately behind the object 510 (2) is determined to be of class “S” and class “excellent”.

  The transport mechanism 10 is provided with a sorting area 10b on the downstream side in the transport direction from the measurement area 10a, and the operator can determine whether the sorting area 10b is in the sorting area 10b based on the determination result displayed on the display means 90. The sorting object 510 is taken out from the first transport container 500 (1), and sorting processing is performed in which each sorting object 510 is distributed to the corresponding sorting container 550.

  In the present embodiment, as described above, the control device 100 divides the selection object 510 into the three classes “L”, “M”, and “S” and “excellent”, “excellent”, and “good”. It is comprised so that it may distribute to three grades.

  Accordingly, as the sorting container 550, an “L / A (excellent)” container 550 (L / A), an “L / B (excellent)” container 550 (L / B), and an “L / C (good)”. Container 550 (L / C), “M / A (excellent)” container 550 (M / A), “M / B (excellent)” container 550 (M / B), “M / C (good)” ”Container 550 (M / C),“ S / A (excellent) ”container 550 (S / A),“ S / B (excellent) ”container 550 (S / B),“ S / C (good) ” Nine sorting containers 550 "(S / C) are provided.

  In the example shown in FIGS. 8 and 9, the operator visually recognizes the display means 90 so that the sorting object 510 (1) located on the top and right side of the first transfer container 500 (1) is displayed. Recognizing that the class is “L” and the class “excellent”, the sorting object 510 (1) is taken out from the first transfer container 500 (1) in the sorting area 10b and “L / A (excellent)” is selected. ) "To the container 550 (L / A).

  The operator performs the same manual sorting process on the other sorting objects 510 accommodated in the first transfer container 500 (1), and the sorting object 510 (2) is “M / A (excellent)”. The sorting object 510 (3) is moved to the “S / B (excellent)” container 550 (S / B), respectively, to the container 550 (M / A).

  The display on the display means 90 of the quality determination result of the first transport container 500 (1) for which the two-dimensional position information and quality information have been acquired in the measurement region 10a is the same as that of the first transport container 500 (1). The arrival at the sorting area 10b can be a trigger.

That is, the control device 100 has reached the sorting area 10b when the transport container 500 (the first transport container 500 (1) in FIG. 8) for which two-dimensional position information and quality information have been acquired in the measurement area 10a. When the sensor 75 detects this, the display means 90 displays the quality determination results of the plurality of sorting objects 510 accommodated in the transfer container 500 (the first transfer container 500 (1) in FIG. 8). It can be displayed on the display means 90.
According to such a configuration, the manual sorting process by the operator in the sorting area 10b can be efficiently performed without error.

Embodiment 5
Hereinafter, still another embodiment of the quality selection apparatus according to the present invention will be described with reference to the accompanying drawings.
FIG. 10 shows a schematic plan view of the quality selection device 5 according to the present embodiment.
In addition, in the figure, the same code | symbol is attached | subjected to the same member in each said embodiment.

  The quality sorting apparatus 5 according to the present embodiment is different from the fourth embodiment in that the sorting object 510 is automatically distributed from the transport container 500 to the corresponding sorting container 550. This is different from the quality sorting apparatus 4.

  Specifically, as shown in FIG. 10, the quality sorting device 5 is the same as the quality sorting device 4 according to the fourth embodiment, except that the display unit 90 replaces the transport container 500 with the sorting area 10b. A pick-up mechanism 600 that can take out and carry out a plurality of sorting objects 510 individually is provided.

  As long as the pick-up mechanism 600 can individually take out the sorting object 510 from the transport container 500 and move it to the corresponding sorting container 550 based on the operation control by the control device 100, the pickup mechanism 600 can be of various types such as an adsorption type or a gripping type. The configuration can be taken.

In the present embodiment, the pickup mechanism 600 is an adsorption type.
Specifically, as shown in FIG. 10, the pickup mechanism 600 includes an adsorption unit 610, an upper and lower rail 620 that supports the adsorption unit 610 so as to be movable in the vertical direction, and moves the adsorption unit 610 in the vertical direction. A vertical driving unit (not shown), a width rail 630 that supports the upper and lower rails 620 so as to be movable in the width direction (transport width direction) of the transport mechanism 10, and the upper and lower rails 620 in the transport width direction. A width-direction drive unit (not shown) to be moved, a conveyance-direction rail 640 that supports the width-direction rail 630 so as to be movable in the conveyance direction of the conveyance mechanism 10, and conveyance that moves the width-direction rail 630 in the conveyance direction A direction drive unit (not shown).

  The suction part 610 includes a cylinder (not shown) whose tip can be individually brought into contact with each of the plurality of sorting objects 510, and an ejector (not shown) that changes the pressure inside the cylinder. And by adsorbing the sorting object 510 by making the inside of the cylinder negative pressure by the ejector in a state where the tip of the cylinder is in contact with the sorting object 510, In addition, the selection object 510 is opened by releasing the negative pressure inside the cylinder.

  In the present embodiment, the control device 100 controls the operation of the pickup mechanism 600 so that each of the plurality of sorting objects 510 is sorted and transferred to the sorting container 550 according to the quality determination result.

  In the second embodiment, the control device 100 is configured to perform only defective product determination on a plurality of selection objects based on spectral information from the imaging unit 30. Instead of this, or in addition, as in the fourth and fifth embodiments, it is also possible to perform a class determination and / or a class determination for a plurality of selection objects.

  Moreover, although the said quality selection apparatuses 1-3 which concern on the said Embodiment 1-3 are comprised so that the marked selection target object may be manually selected in the selection area | region 10b, it replaces with this, and the said implementation As in the fifth embodiment, the pickup mechanism 600 may be configured to automatically sort.

1-5 Quality sorter 10 Transport mechanism 10A Placement surface 10a Measurement area 10b Hand sorter area 20 Outline sorter 30 Imaging means 50 Marking device 51 Supporting frame 55 Inkjet nozzle 60 Pickup mechanism 100 Controller 110 Transport roller 130 Projector 140 Light receiver 150 Spectrometer 500 Transport container 510 Sorting object M Reference mark

Claims (15)

A transport mechanism for transporting a plurality of selection objects placed in a dispersed state on the placement surface, each having a placement surface having a predetermined length in the transport direction and a transport width direction orthogonal to the transport direction; An imaging unit capable of capturing a predetermined measurement area of the mounting surface and acquiring two-dimensional position information and quality information of the measurement area, a display unit, and a control device,
The control device determines the quality of each of the plurality of selection objects based on the quality information input from the imaging unit, and measures the measurement on the display unit based on two-dimensional position information input from the imaging unit. A quality selection apparatus that displays a two-dimensional image of a region and performs a marking process for assigning a quality to each of the plurality of selection objects in the two-dimensional image. The imaging means can acquire spectral information as the quality information,
The control device determines, as the quality determination, whether there is a defective product in the selection target in the measurement region based on the spectral information, and determined that there is a defective product as the marking process. 2. The quality sorting apparatus according to claim 1, wherein a process of identifying and displaying a sorting target determined as the defective product in the two-dimensional image from another sorting target is performed.   The quality sorting apparatus according to claim 1, wherein the placement surface has a sorting area that can be manually sorted downstream of the measurement area in the transport direction. A pick-up mechanism capable of individually taking out and carrying out the plurality of sorting objects in the sorting area provided on the downstream side in the transport direction from the measurement area of the placement surface;
The control device operates the pickup mechanism so as to take out a selection target of a predetermined quality from the placement surface in the selection area and carry it out to a predetermined place outside the conveyance path by the conveyance mechanism. The quality selection apparatus according to claim 1 or 2, wherein A transport container capable of accommodating a plurality of sorting objects in a dispersed state on a single plane and having an upper opening, a transport mechanism capable of transporting the transport container, and the transport being transported by the transport mechanism An imaging means capable of acquiring two-dimensional position information and quality information of a plurality of sorting objects contained in a container, and a control device,
When the control device detects that the transport container has reached the measurement region in the transport path by the transport mechanism, the control device operates the imaging unit to two-dimensionally select a plurality of selection objects accommodated in the transport container. Obtaining position information and quality information, determining the quality of each of the plurality of sorting objects based on the quality information, and recognizing the quality based on the two-dimensional position information A quality sorting apparatus, which stores information in association with each accommodation position of a plurality of sorting objects.   The quality selection apparatus according to claim 5, wherein the imaging unit is capable of acquiring spectral information as the quality information.   The quality selection apparatus according to claim 5 or 6, wherein the imaging unit is capable of acquiring size information as the quality information. A display means capable of displaying information;
The control device causes the display unit to display the quality of each of the plurality of sorting objects accommodated in the transport container in a state associated with the accommodation positions of the plurality of sorting objects. Item 8. The quality sorting apparatus according to any one of Items 5 to 7. The transport mechanism has a sorting region on the downstream side in the transport direction from the measurement region,
When the control device detects that the transport container for which two-dimensional position information and quality information have been acquired has arrived at the sorting area, the control device determines the quality of each of the plurality of sorting objects accommodated in the transport container. 9. The quality sorting apparatus according to claim 8, wherein the quality sorting device is displayed on the display means in a state associated with the storage position of the sorting object. A pick-up mechanism capable of individually taking out and carrying out a plurality of sorting objects from the transport container in a sorting area provided downstream in the transport direction from the measurement area;
The control device operates the pickup mechanism so as to take out a selection target of a predetermined quality from the transfer container in the selection area and carry it out to a predetermined location outside the transfer path by the transfer mechanism. The quality selection apparatus according to any one of claims 5 to 7, A transport mechanism for transporting a plurality of selection objects placed in a dispersed state on the placement surface, each having a placement surface having a predetermined length in the transport direction and a transport width direction orthogonal to the transport direction; An imaging unit capable of capturing a predetermined measurement area of the placement surface and acquiring two-dimensional position information and spectral information of the measurement area; and on the placement surface on the downstream side in the transport direction from the measurement area. A marking device that performs marking on a selection object, and a control device,
The control device determines whether or not there is a defective product in the selection target in the measurement area based on the spectral information input from the imaging unit. A quality selection apparatus, wherein two-dimensional position information of a non-defective product is acquired as defective product position information, and the marking device is operated based on the defective product position information to mark the defective product. The marking device includes a support frame and a plurality of inkjet nozzles supported by the support frame so as to be arranged at predetermined intervals in the transport width direction,
A reference mark is attached to the mounting surface at predetermined intervals along the transport direction,
The control device acquires relative position information of the defective product with respect to the reference mark as defective product position information, and operates the plurality of inkjet nozzles based on a relative position of the defective product with respect to the reference mark in a conveyance width direction. 12. The inkjet nozzle to be specified is specified, and the identified inkjet nozzle is operated at a timing based on a relative position in the conveyance direction of the defective product with respect to the reference mark and a conveyance speed of the conveyance mechanism. Quality sorting device.   The quality sorting device according to claim 11 or 12, wherein the placement surface is configured such that a hand sorting area is defined downstream in the transport direction from the marking device. A plurality of conveying rollers arranged in parallel with a gap in the conveying direction in a state in which the axial direction is along the conveying width direction orthogonal to the conveying direction, and operatively driven by power from a driving source; A light projecting unit and a plurality of light receiving units that are vertically opposed to each other with the conveyance roller, a plurality of spectroscopes optically connected to the plurality of light receiving units, a marking device, and a control device,
The light projecting unit projects sorting light toward a measurement region formed by a gap between a predetermined pair of adjacent transport rollers of the plurality of transport rollers,
The plurality of light receiving units are configured to receive the selection light from the light projecting unit that has been transmitted through the plurality of selection objects arranged in parallel along the axial direction of the conveyance roller in the measurement region. Arranged in parallel along the direction,
The marking device is disposed downstream in the transport direction from the measurement region, and can individually mark the plurality of selection objects at positions corresponding to the plurality of light receiving units in the axial direction of the transport roller. Configured as
When the control device determines that there is a defective product among the plurality of sorting objects arranged in parallel in the measurement region based on the spectral information input from the plurality of spectrometers, the control device is a defective product. A quality sorting device, wherein the marking device is operated so as to perform marking at an axial position of the transport roller corresponding to a light receiving unit that has received the transmitted light of the judged sorting object.   The quality sorting device according to claim 14, wherein the plurality of transport rollers are arranged so that a hand sorting area is defined downstream in the transport direction from the marking device.