KR102289479B1 - An Apparatus for lighting a surface of a fruit - Google Patents

Abstract

The present invention relates to an apparatus for irradiating light on the surface of a fruit, the apparatus comprising: an introduction unit for introducing a fruit; a light irradiator disposed on a working plate and disposed downstream of the introduction part along a transport direction of the fruit to irradiate light onto the surface of each transported fruit; and a transfer unit configured to separate and transfer individual fruits from each other, including a position aligning unit for aligning a seating position in which individual fruits transferred to the light irradiation unit are placed on the transfer unit to a position for light irradiation, the position alignment The portion includes an open contour that allows the individual fruits to contact the alignment portion and align in position for the light irradiation when the individual fruit is seated on the transfer portion and passes through at least a portion of the alignment portion.

Description

{An Apparatus for lighting a surface of a fruit}

The present invention relates to a fruit sorter, and more particularly, to a fruit sorter that selects kiwis by consistently controlling the placed position of the transported kiwi in order to precisely measure the sugar content of the kiwi.

In general, the sorting of fruits is an important task to improve the commercial value of fruits, and there are several types of fruits that can be graded according to various sorting factors such as the size, weight, shape, color, fragrance, taste, and presence of wounds. A selector has been developed.

In particular, the gravimetric fruit sorter is a sorting machine that sorts fruits and vegetables by weight. The conventional gravimetric fruit sorter is configured such that sorting plates for placing fruits are installed on a chain at regular intervals and transported intermittently or continuously by the chain. there is. Here, a plurality of weight sensors are installed under the chain at regular intervals to measure the weight of the fruit together with the chain.

However, the conventional fruit sorting machine as described above can only select based on the weight of the fruit, and it is not possible to classify the quality according to the non-destructive sugar content test of the fruit, or to select whether there is a wound or whether there is an insect inside. .

In particular, in the case of a fruit with a large volume ratio of the seam in the ratio of the part corresponding to the seed (seam) to the flesh corresponding to the pulp, for example, in the case of kiwi, the future through ripening, which indicates how ripe It was difficult to predict the sugar content of

In addition, when measuring the sugar content of a single point of a fruit using an optical technique, it is difficult to measure the ripeness of the whole fruit, and the amount of light received by the optical technique is insufficient, so that accurate measurement is not possible.

In order to solve the problems of the prior art described above, the present invention provides a fruit surface capable of predicting more precise ripeness and future sugar content by irradiating light to both the shim and the pulp of a fruit having a relatively large core. An object of the present invention is to provide a light irradiation device for

An object of the present invention is to provide a light irradiating device for the surface of a fruit in which the position of the fruit can be adjusted so that the seam and the pulp of the fruit irradiated with light can be uniformly arranged on the light irradiating device.

An apparatus for irradiating light on a surface of a fruit according to an embodiment of the present invention includes: an introduction unit for introducing a fruit; a light irradiator disposed on the work plate and disposed downstream of the introduction part along the transport direction of the fruit to irradiate the surface of each transported fruit with light; and a transfer unit configured to separate and transport individual fruits from each other, wherein a seating position in which individual fruits transferred to the light irradiation unit are placed on the transfer unit is aligned with a position for light irradiation. and a position aligning unit that allows the individual fruit to contact the position aligning unit when the individual fruits are seated on the transfer unit and pass through at least a portion of the position aligning unit to be aligned with the position for the light irradiation. and an open contour.

The alignment portion includes a plurality of extensions of soft material disposed on the path through which the individual fruit passes and defining the open contour.

The open contour corresponds to at least a portion of the outer shape of the cross section of the fruit in a direction perpendicular to the transport direction when the individual fruit is aligned in position for irradiation.

A plurality of the extensions are resilient so that when the extension comes into contact with the fruit being conveyed placed on the conveyance, it changes the position of the fruit but does not prevent the fruit from passing through the open contour of the positioning unit.

The light irradiation unit includes a light irradiation chamber disposed on the work plate and disposed on a traveling path of the transfer unit, wherein the light irradiation chamber includes a light emitting unit disposed on one side in the transfer direction of the transfer unit; and the transfer and a light receiving unit disposed on the other side facing one side of the direction.

The light emitting unit includes a plurality of light emitting modules disposed at predetermined intervals along the transport direction, the light receiving unit includes a plurality of light receiving modules disposed corresponding to the plurality of light emitting modules, and the plurality of light emitting modules are transported Light is irradiated with a downward slope to the fruit.

An angle between the light traveling path through which the plurality of light emitting modules irradiate light to the fruit and the light traveling path through which the plurality of light receiving modules receive light is 135 degrees.

The light propagation path between the plurality of light emitting modules and the plurality of light receiving modules corresponding thereto passes through all the fruits aligned to the positions for the light irradiation.

In the position for the light irradiation, the fruit is arranged so that the length of the fruit coincides with the direction of transport.

The light irradiation unit may include: a chamber case for fixing and accommodating the plurality of light emitting modules and the plurality of light receiving modules therein; a partition wall disposed in the chamber case and extending upward to support and fix the plurality of light emitting modules at each light irradiation position; a pair of guide rods for moving the chamber case in the transfer direction; and a push member disposed inside the chamber case and biasing the chamber case to be transferred along a pair of guide rods.

The conveying unit includes: a pair of conveying rollers arranged so that the inclined surfaces face each other with respect to a single rotational shaft, so that the fruit can be placed on the inclined surface; a retainer supporting the pair of conveying rollers to maintain positions of the pair of conveying rollers; a front support protruding from the retainer inclined upward in the conveying direction; and a slider protruding downward from the retainer and movable along a lengthwise direction of a pair of guide bars extending across the working plate, wherein the slider is attached to a chain movable between the pair of guide bars. and a connecting hole for connecting the slider.

The retainer is arranged to surround the periphery of the pair of conveying rollers in the conveying direction.

The apparatus for irradiating light on the surface of a fruit according to an embodiment of the present invention further includes a weight measuring unit for measuring the weight of the individual fruit.

As described above, according to the present invention, the following effects can be realized.

First, as in kiwi, for example, the size of the shim inside the fruit is relatively large compared to the flesh, and the length along the major axis is longer between the length along the major axis in the axial direction and the length along the minor axis in the transverse direction instead of being perfectly spherical. In a device that analyzes ripeness and sugar content by irradiating light to fruit in a non-destructive way, a more precise analysis can be performed by simultaneously obtaining the result of irradiating light on the seam and the result of irradiating the light with the excess.

Second, when irradiating light to the fruit to be analyzed, the location of the fruit can be appropriately adjusted so that the light can be irradiated to the intended location of the fruit.

Third, it is possible to control the position of the fruit while transporting it, thereby reducing the working time.

Fourth, in controlling the position of the fruit, damage to the surface of the fruit can be minimized.

Fifth, by realizing an optimal light irradiation angle between the light emitting module of the light emitting unit that irradiates light with respect to the fruit and the light receiving module of the light receiving unit, the accuracy of optical analysis of fruit can be improved.

Sixth, it is possible to precisely control the position of the light irradiation unit irradiating light with respect to the fruit with respect to the transfer unit, so that it is possible to accurately match the analysis information on individual fruits with the individual fruits to be transferred.

Seventh, even if the position where the fruit is placed in the transfer unit is changed, the fruit is not separated from the transfer unit, thereby stably transferring the fruit.

1 is a perspective view of an apparatus for irradiating light on the surface of a fruit according to an embodiment of the present invention.
FIG. 2 is a partially enlarged view of the light irradiation unit of FIG. 1 .
3 is a schematic front view of a fruit positioning unit;
4 is a partially enlarged view of the transfer unit of FIG. 1 .
5 is a plan view schematically showing the working state in the fruit position aligning unit and the light irradiation unit.
FIG. 6 is a cross-sectional view schematically showing the relationship between light irradiation and light reception in a cross section taken along line VI-VI of FIG. 1 .

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following description and accompanying drawings are for understanding the operation according to the present invention, and parts that can be easily implemented by those skilled in the art may be omitted.

In addition, the specification and drawings are not provided for the purpose of limiting the present invention, and the scope of the present invention should be defined by the claims. The terms used in this specification should be interpreted with meanings and concepts consistent with the technical idea of the present invention so that the present invention can be most appropriately expressed.

1 is a perspective view of an apparatus for irradiating light on the surface of a fruit according to an embodiment of the present invention, and FIG. 2 is a partially enlarged view of the light irradiator of FIG. 1 .

1 and 2 , the light irradiation apparatus 1000 for the surface of a fruit according to an embodiment of the present invention includes an introduction part 100 for continuously introducing the fruit toward the light irradiation apparatus 1000, the fruit A light irradiator 200 disposed downstream of the introduction part and irradiating light on the surface of each transferred fruit, a weight measuring unit 300 measuring the weight of each fruit, and each fruit separated and transported It is made to include a transfer unit 400 to be.

The introduction part 100 includes a plurality of introduction rollers 102 for introducing and transporting fruit, but is disposed on the introduction part panel 204 .

The light irradiator 200 is disposed on the working plate 210 disposed on the assembly of the vertical lower frame 212 and the horizontal lower frame 213 .

The weight measuring unit 300 is disposed downstream of the light irradiation unit 200 . A discharge panel 206 is provided downstream of the weighing unit 300 . Although not shown in the drawing, facilities for sorting, discharging, and packaging fruits may be prepared downstream after the discharge unit panel 206 .

The transfer unit 400 transfers the fruit in the transfer direction indicated by reference numeral 500 to indicate the transfer direction of the fruit across the work plate 210 . The upstream of the transfer unit 400 receives the fruit from the downstream of the introduction unit 100 and transfers the fruit to the discharge unit panel 206 , and then circulates repeatedly in the form of an endless orbit. In the drawing, the lower portion of the caterpillar of the conveying unit 400 is omitted from the drawing for clarity.

The upstream of the conveying unit 400 is arranged to have a lower height than the introduction roller 102 of the introduction unit 100 and inclined upward until it enters the space of the work plate 210, and in the space of the work plate 210. After entering, it extends horizontally.

The weight sensor 302 of the weight measurement unit 300 is disposed below the transfer unit 400 at a point indicated by reference numeral 302 in FIG. 1 .

When the fruit irradiated with light from the light irradiation unit 200 is transported downstream along the transfer unit 400 and then passes the weight sensor 302 of the weight measurement unit 300, light irradiation information and weight information for the same fruit are shared with each other. In order to match, the central control unit (CPU: not shown) synchronizes the transport paths of individual fruits transported from the transport unit to match corresponding information, and the matched information is sent to a discharge unit (not shown) that classifies and discharges fruits. is transmitted

1 and 2 includes a position aligning unit 250 for aligning a seating position in which individual fruits transferred to the light irradiation unit 200 are placed on the transfer unit 400 to a position suitable for light irradiation. As shown in FIG. 1 , the alignment unit 250 may be provided at the inlet of the light irradiation unit 200 , or may be provided at an outlet exiting the light irradiation unit 200 .

The light irradiation unit 200 is disposed on the moving path of the transfer unit 400 in the upper frame 220 disposed over the working plate from the upper side of the working plate 210 .

3 is a front schematic view of a position aligning unit for aligning a seating position in which the fruit is seated on the transfer unit; Referring to FIG. 3 , in the positioning unit 250 , when individual fruits are seated on the conveying roller 402 of the conveying unit 400 and pass through at least a portion of the alignment unit 250 , individual fruits It includes an open contour portion 254 that contacts a portion of the alignment portion 250 to be aligned in position for the light irradiation.

The alignment portion 250 includes a plurality of extensions 252 of soft material disposed on the path through which the individual fruit passes to form the open contour 254 . The extension part 252 is divided from each other, and one end is integrally formed with the alignment part 250 , and the other end is formed as a free end.

At a position (indicated by k1) in which a fruit, for example, kiwi is placed on the conveying roller 402, the long direction of the kiwi is in a direction perpendicular to the arrow indicated in the conveying direction (X-axis direction in FIG. 3) When being transported, the open contour portion 254 of the positioning unit 250 is positioned at k2 so that the kiwi is placed in a position (denoted by k2) where the length of the kiwi is parallel to the transport direction. It has a corresponding shape to allow the laid kiwi to pass through.

That is, the open contour portion 254 is formed in a direction perpendicular to the conveying direction (Y direction, a direction corresponding to the arrow of reference numeral 500) when individual fruits, for example, kiwis are aligned in a position for light irradiation (Y direction). X-direction) corresponds to at least a portion of the outer shape of the cross-section of the fruit.

Here, the plurality of extension parts 252 having one end integrally formed with the position alignment part 250 are placed on the transfer part 400 and the transferred fruit and the extension part 252 come into contact with each other, the position of the fruit to have elasticity that does not prevent the fruit from passing through the open contour portion 254 of the alignment portion 250 . Here, the open contour portion 254 is designed based on average-sized fruits, and as described below, even if the size of individual fruits placed on a rotating conveying roller and transported is larger than the average size of fruits, the above-mentioned The elasticity allows the fruit to pass through the open contour 254 formed by the other end of the plurality of extensions 252, and as it passes, their positions are aligned.

The extension portion may be formed of a predetermined synthetic resin or rubber having such elasticity. The material of the extension part is not limited thereto, and various materials having the above-described elastic condition may be used as the material of the extension part 252 .

Referring again to FIG. 2 , a detailed structure of the light irradiation unit 200 will be described.

The light irradiation unit 200 includes a light irradiation chamber 230 disposed on the work plate 210 and disposed on a traveling path of the transfer unit 400 . The light irradiation chamber 230 includes a light emitting part 232 disposed on one side of both sides divided in the transport direction of the transport unit 400 and a light receiving part 234 disposed on the other side facing one side in the transport direction. include

Here, the light emitting unit 232 includes a first light emitting module 232a, a second light emitting module 232b, and a third light emitting module 232c disposed at predetermined intervals along the transport direction. Meanwhile, the light receiving unit 234 includes a first light receiving module 236a , a second light receiving module 236b , and a third light receiving module 236c disposed to correspond to the plurality of light emitting modules.

Here, the number of light emitting modules included in the light emitting unit 232 is not necessarily limited to three, and it is necessary to irradiate light that can analyze the shim and the pulp of a fruit to be analyzed, for example, kiwi. number can be determined. The number of light-receiving modules included in the light-receiving unit 234 is also not necessarily limited to three, and a necessary light-emitting module for irradiating light capable of analyzing the shim and the pulp of a fruit to be analyzed, for example, a kiwi. It is determined by the corresponding number of the number. It is preferable that the number of the light emitting module and the light receiving module is correspondingly the same.

Referring to FIG. 2 , the light emitting unit 200 includes the first light emitting module 232a, the second light emitting module 232b, and the third light emitting module 232c and the first light receiving module 236a therein. , a second light receiving module 236b, and a chamber case 230a for fixing and accommodating the third light receiving module 236c.

The chamber case 230a includes a light emitting unit 232 and a light receiving unit 234 therein. In addition, the chamber case 230a is disposed in the chamber case 230a, and includes a plurality of light emitting modules including a first light emitting module 232a, a second light emitting module 232b, and a third light emitting module 232c. It includes a plurality of barrier ribs 237 extending upward to support and fix at each light irradiation position. The first light emitting module 232a , the second light emitting module 232b , and the third light emitting module 232c are mounted in a vertically extending installation space formed by the plurality of partition walls 237 . A plurality of the light emitting modules are fitted into the space partitioned by the plurality of partition walls. A plurality of the light emitting modules are fixed by frictional force between the barrier rib and the light emitting module in a state of being fitted in the space partitioned by the plurality of barrier ribs, and the irradiation angle of the light emitting module can be adjusted by an external force that exceeds the frictional force. .

Meanwhile, the light irradiation unit 200 includes a pair of guide rods for moving the chamber case 230a in the transport direction, that is, a first guide rod 242 and a second guide rod 244 , and the chamber case 230a is provided with a pair of guide rods. It is disposed inside the case 230a, and includes a push member 242a for biasing the chamber case 230a to be transferred along the pair of guide rods 242 and 244 .

The light emitting unit 232 and the light emitting unit 323 including a first light emitting module 232a, a second light emitting module 232b, and a third light emitting module 232c installed between a plurality of the partition walls 237 A light receiving unit 234 including a first light receiving module 236a, a second light receiving module 236b, and a third light receiving module 236c arranged to receive light correspondingly and the push member 242a are provided in the chamber case ( 230a) is fixedly disposed on the inner surface.

At least one guide rod among the pair of guide rods 242 and 244, for example, the first guide rod 242 is a chamber case 230a to which the push member 242a and the push member 242a are attached. penetrate the walls of Here, two push members 242a are provided and are respectively attached to and fixed to opposite walls of the chamber case 230a.

A screw thread is formed on the outer surface of the first guide rod 242, and the push member 242a has a thread of a shape complementary to the screw thread formed on the outer surface of the first guide rod 242 in its center through hole. include Accordingly, the first guide rod 242 is rotated by an actuator (not shown), and by the rotation of the first guide rod 242 , the push member 242a moves in the axial direction of the first guide rod 242 . can move to The push member 242a moves along the axial direction of the first guide rod 242, and the chamber case 230a fixed to and connected to the push member 242a and the light emitting part fixed in the chamber case 230a ( 232) and the light receiving unit 234 as a whole is moved along the axial direction of the first guide rod (242).

Accordingly, it is possible to precisely control the position of the light irradiation chamber 230 of the light irradiation unit that irradiates light with respect to the fruit with respect to the transfer unit 400, so that the analysis information on individual fruits and the individual fruits to be transferred are accurately matched. can be synchronized.

4 is a partially enlarged view of the transfer unit of FIG. 1 .

Referring to FIG. 4 , the conveying unit 400 includes a pair of conveying rollers 402 connected to a single rotational shaft so that the inclined surfaces face each other so that the fruit can be placed on the inclined surface. A rotation shaft connected through the pair of conveying rollers 402 extends in a straight line.

On the other hand, the conveying unit 400 supports the pair of conveying rollers 402 to be inclined in the conveying direction from the retainer 404 and the retainer 404 for maintaining the position of the pair of conveying rollers 402 . and an upwardly projecting anterior support 408 .

Each end of the retainer 404 is connected to the outer rotating surface of the pair of conveying rollers 402 . That is, the transfer roller 402 is rotatably connected to the retainer 404 . Here, the retainer 404 has, for example, a 'C' shape.

On the other hand, the transfer unit 400 should be able to move to load the fruit and transfer the fruit. To this end, the transfer unit 400 is a slider 406 that protrudes downward from the retainer 404 and is movable along the longitudinal direction of a pair of guide bars 214 extending across the work plate 210 . includes In order to move the slider (406), the slider (406) includes a connecting hole (409) for connecting the slider (406) to a chain movable between a pair of the guide bars (214). , the connecting hole 409 is connected by a pin (not shown) to a chain (not shown), which is a mechanical power transmission element extending between the pair of guide bars 214 . Accordingly, when the chain is moved by the motor, the slider 406 connected to the chain moves, and accordingly, the retainer 404 and the transfer roller 402 connected to the slider 406 also move according to the speed of the chain.

Here, the retainer 404 surrounds the pair of the conveying rollers 402 in the conveying direction. That is, the retainer 404 is disposed on the conveying direction side with respect to the pair of conveying rollers 402 .

The inclined surfaces of the pair of conveying rollers 402 are disposed to face each other to form a concave space, and since the front support 408 protrudes upward from the retainer 404, the conveying roller 402 and the front support 408 ), the fruit is seated and transported in the space surrounded by

However, as described above, in the process in which the fruit introduced from the introduction unit 100 changes the conveying means to the conveying unit 400 , the fruit may not be seated on the conveying unit 400 in an optimal position for light irradiation. there is. In addition, the seating position of the fruit once seated on the transfer unit 400 does not change except by another external force. In this case, in order to change the fruit to the optimal seating position on the transfer unit 400 for light irradiation, the light irradiation apparatus 1000 for irradiating the surface of the fruit according to an embodiment of the present invention is the above-described position alignment unit. (250) is provided.

5 is a plan view schematically showing the working state in the fruit position aligning unit and the light irradiation unit, and FIG. 6 is a cross-sectional view schematically showing the relationship between light irradiation and light reception in a cross section taken along line VI-VI of FIG. 1 am.

5 and 6 , the plurality of light emitting modules 232a , 232b , and 232c irradiate light so that the transferred fruit is inclined downward with respect to the surface. In particular, referring to FIG. 6 , the light-emitting modules 232a, 232b, and 232c emit light on the surface of the fruit, and the light-receiving modules 236a, 236b, and 236c receive the light. The angle α formed by the propagation path of light is substantially 135 degrees. In other words, rather than irradiating light to the fruit vertically downward from the light emitting module and receiving light horizontally, the light is irradiated to the fruit at an angle that is inclined by 45 degrees from a vertical position, that is, an angle of 135 degrees to horizontally emit light. When light is received, light loss is also prevented and the accuracy of information obtained from light passing through the fruit is improved. Here, the reason for irradiating the fruit with light at an angle of 135 degrees is based on the optimal light spectrum curve obtained through a number of experiments by the inventor. When light is irradiated vertically downward from the light emitting module to the fruit, that is, when light is irradiated at an angle of 90 degrees, the amount of light propagating along the surface of the fruit and reaching the light receiving unit regardless of the light characteristics inside the fruit becomes considerable. In this case, there is a problem in that it is difficult to accurately measure the amount of light absorption inside the fruit. Optionally, if light is irradiated to the fruit at the opposite side of the light receiving part, that is, at an angle of 180 degrees, the amount of light passing through the inside of the fruit becomes smaller, and eventually the light intensity must be increased. There is a problem in that the fruit gets lacerated when it is applied. Therefore, if light is irradiated to the fruit at an angle of 135 degrees, the measurement accuracy can be increased by reducing the light that is not absorbed inside the fruit and propagates only to the surface of the fruit. do.

Since the angle α is an engineering numerical limitation, an error of an angle level corresponding to the tolerance is included. Accordingly, the angle α of 135 degrees in the present invention does not refer to only 135 degrees as a numerical value, but includes an angular error of a level that may occur in the production process or operation process.

5, the first light emitting module 232a, the second light emitting module 232b, and the third light emitting module 232c, and the first light receiving module 236a and the second light receiving module corresponding thereto The light propagation path (arrow indicated by a broken line in FIG. 5) between the 236b and the third light receiving module 236c passes through the position alignment unit 250 and is aligned to the position k2 for light irradiation. will pass all

An interval between the first light emitting module 232a, the second light emitting module 232b, and the third light emitting module 232c and the corresponding first light receiving module 236a, the second light receiving module 236b, and the interval between the third light receiving modules 236c is set so that light emitted from each light emitting module must irradiate the surface of the fruit and pass through the fruit, and then be received by each light receiving module.

Before passing through the alignment unit 250, the fruit that was placed in the wrong fruit position (k1), not the position for light irradiation, passes through the alignment unit 250 and is aligned to the position (k2) for light irradiation. After that, it is placed between the light emitting unit 232 and the light receiving unit 234 . That is, after passing through the positioning unit 250 , the fruit is arranged so that the lengthwise direction of the fruit coincides with the conveying direction.

If the transport direction and the length of the fruit are arranged to coincide with each other, when all the light emitted from the light emitting unit is received by the light receiving unit, the distance between the light emitting modules and the distance between the light receiving modules can be maximized, so the freedom of arrangement It has the advantage of being able to analyze a wider range of fruits because the light intensity is improved, and light analysis is possible even at points far from the rim of the fruit.

The light received by each of the light receiving modules 236a, 236b, and 236c of the light receiving unit 234 is merged in the optical fiber 240 and sent to an optical analyzer (not shown) for optical analysis. At this time, since the light received from each light receiving module is merged in one optical fiber 240 , the intensity of light transmitted from the optical fiber 240 to the optical analyzer is improved, thereby enabling more precise optical measurement.

Although specific embodiments have been described in detail in the present invention, this invention is not limited thereto, and this invention is capable of various modifications by those skilled in the art to which the invention pertains, and these modifications are within the scope of the invention. are included in

With respect to interpretation, it can be understood that this invention can be implemented in modified forms without departing from the essential characteristics of the invention.

The disclosed embodiments are to be considered in an illustrative rather than a restrictive sense. The scope of this invention is indicated in the claims rather than the above description, and differences within the equivalent scope should be construed as being included in the invention.

In the case of a term whose meaning is not specifically defined in the present invention, it should be interpreted broadly as a general meaning, and should be interpreted as including other terms in an equivalent range.

1000: light irradiation device for fruit surface
100: introduction part 102: introduction roller
200: light irradiation unit 210: work plate
213: horizontal lower frame 214: guide bar
220: upper frame 230: light irradiation chamber
230a: chamber case 232: light emitting part
232a, 232b, 232c: light emitting module 234: light receiving unit
236a, 126b, 236c: light receiving module
242: first guide rod 244: second guide rod
242a: no push
250: positioning unit 252: extension unit
254: open contour part 300: weighing part
400: transfer unit 402: transfer roller
404: retainer 406: slider
408: front support 409: connector hole

Claims (13)

an introduction to introduce fruit;
a light irradiator disposed on the work plate and disposed downstream of the introduction part along the transport direction of the fruit to irradiate light onto the surface of each transported fruit; and
In the light irradiation device for the surface of a fruit comprising; a transfer unit configured to transfer individual fruits separately from each other,
and a position aligning unit for aligning a seating position in which individual fruits transferred to the light irradiation unit are placed on the conveying unit to a position for light irradiation,
The position alignment unit includes an open contour that allows individual fruits to contact the alignment unit and align with the position for light irradiation when the individual fruits are seated on the transfer unit and pass through at least a portion of the alignment unit,
The transfer unit,
a pair of conveying rollers arranged so that inclined surfaces face each other with respect to a single linear axis of rotation, so that fruit can be placed on the inclined surface;
a retainer supporting the pair of conveying rollers to maintain positions of the pair of conveying rollers; and
and a front support protruding from the retainer to an inclined upward direction in the transport direction;
the alignment portion comprises a plurality of extensions of soft material disposed on the path through which the individual fruit passes and forming the open contour;
the open contour corresponds to at least a portion of the outer shape of the cross-section of the fruit in a direction perpendicular to the direction of transport when the individual fruit is aligned in position for irradiation,
a plurality of said extensions, which are placed on a conveying part and have elasticity which, when the extended part comes into contact with the conveyed fruit, changes the position of the fruit but does not prevent the fruit from passing through the open contour of the positioning part Light irradiation device for the surface. delete delete delete The method of claim 1,
The light irradiation unit includes a light irradiation chamber disposed on the work plate and disposed on the traveling path of the transfer unit,
The light irradiation chamber,
a light emitting unit disposed on one side of the conveying unit in the conveying direction; and
Light irradiation device for the surface of fruit comprising a; a light receiving unit disposed on the other side facing one side of the transport direction. 6. The method of claim 5,
The light emitting unit includes a plurality of light emitting modules arranged at predetermined intervals along the transport direction,
The light receiving unit includes a plurality of light receiving modules disposed corresponding to the plurality of light emitting modules,
A plurality of the light emitting module is a light irradiation device for the surface of the fruit, characterized in that for irradiating light inclined downward with respect to the transferred fruit. 7. The method of claim 6,
Light irradiation device for fruit surface, characterized in that the angle between the light traveling path of the plurality of light emitting modules irradiating light to the fruit and the traveling path of the light receiving the light from the plurality of light receiving modules is 135 degrees. 8. The method of claim 7,
Light irradiation apparatus for fruit surface, characterized in that the light propagation path between the plurality of light emitting modules and the plurality of light receiving modules corresponding thereto passes through all the fruits aligned to the position for light irradiation. The method of claim 1,
In the position for the light irradiation, the fruit is a light irradiation device for the surface of a fruit, characterized in that it is arranged so that the length of the fruit and the transport direction coincide. 9. The method of claim 8,
The light irradiation unit,
a chamber case for fixing and accommodating the plurality of light emitting modules and the plurality of light receiving modules therein;
a partition wall disposed in the chamber case and extending upward to support and fix the plurality of light emitting modules at each light irradiation position;
a pair of guide rods for moving the chamber case in the transfer direction; and
Doedoe disposed in the chamber case, light irradiation device for the surface of fruit comprising a push member for biasing the chamber case to be transferred along a pair of guide rods. The method of claim 1,
The transfer unit further includes a slider that protrudes downward from the retainer and is movable along the longitudinal direction of a pair of guide rods extending across the work plate;
wherein the slider includes a connecting hole for connecting the slider to a chain movable between a pair of the guide rods. 12. The method of claim 11,
and the retainer surrounds a pair of the conveying rollers in the conveying direction. The method of claim 1,
Light irradiation device, characterized in that it further comprises a weight measuring unit for measuring the weight of the individual fruit.

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