KR101194776B1 - Color sorting device of three step - Google Patents

Abstract

PURPOSE: A three-stage color sorting machine is provided to achieve optimal lighting effect by controlling color and brightness because the duty ratio of power applied to an one chip-type full color LED is controlled. CONSTITUTION: A three-stage color sorting machine(1) comprises a feeding device(10), first, second, and third color sorting devices(20,30,40), and second, third, and fourth inclined chutes(16a,16b,49). The feeding device supplies left-type materials(2) to the first color sorting device. The first, second, and third color sorting devices take a photograph leaf-type materials(2a,2c,2e) with a color CCD(Charge Coupled Device) cameras(24,34,44) to firstly, secondly, and thirdly sort the colors of the leaf-type materials. After the first, second, and third color sorting devices determine fault, bad products(2b,2d,2f) are removed by spraying high pressure air. The second inclined chute is installed between the first and second color sorting devices. The third inclined chute is installed between the second and third color sorting devices. The fourth inclined chute is installed under the third color sorting device.

Description

3-stage color sorting device {COLOR SORTING DEVICE OF THREE STEP}

The present invention relates to a three-stage color sorting apparatus, and in particular, three-stage of leaf-like objects (hereinafter referred to as 'leaf-like') such as green tea, black tea, chrysanthemum, and herb, which have a small specific gravity and have a large size and color change. The continuous selection in (step 3) allows for high productivity and highly efficient color selection, as well as obtaining high quality (high quality) leafy leaves without damage to the leafy ones.

In general, color sorting devices are foreign substances contained in grains such as rice, brown rice, glutinous rice, black rice, millet, barley, wheat and soybeans, such as bad grains, bad grains, nuits, yakis, grass seeds, gum fire, colored granules, sand, and synthetic resins. RPC (Rice Processing Complex) equipment that discriminates and separates glass, etc., and photographs grain (or wheat) with a CCD camera and distinguishes between good and foreign matter (including defective products) by color and / or contrast determination. Then, the foreign matter is separated and removed by spraying the high-pressure air instantaneously and is treated as good or bad.

In the case of grains having a high specific gravity such as rice, barley, wheat, and soybeans, they are well sorted without any problem because they slide and fall at a constant speed on the slope chute surface, but the specific gravity is low and the shape, shape and Leaf matters, such as green tea, black tea, chrysanthemum, or herb, which have various sizes and change in color, are difficult to select or cannot be selected.

For example, the leaf-shaped material has a low specific gravity (or mass), is light and has a flat area and a variety of shapes and shapes compared to the thickness, so that the drop speed is slower than the grain, and the shape is not uniform and the center of gravity is not constant. When gliding along the slope, flying or vortex occurs, and even the same type of leaf has a characteristic of varying in color depending on the time of collection, location of collection, drying condition, storage time and degree.

On the other hand, in consideration of the characteristics of the leaf material, "leaf color sorter" has been devised to sort out the good and defective products of the leaf, but it is a one-stage sorting structure that selects the leaf only once. In addition, in order to obtain a leaf of good quality, the leaf material selected once is repeatedly selected by inserting it into the leaf color sorter several times, resulting in poor workability and low productivity, as well as the leaf color once selected. There is a need for a transport facility for sorting and re-injection into a sorter, and the round quality of the leaf material is largely damaged or damaged in the process of repetitive transport (input) and color sorting along the transport facility.

In addition, since a single white light source is used as a light source, defective leafy materials of the same or similar color to leafy materials and foreign substances such as nukes, yakis, grass seeds, gumfire, colored granules, sand, synthetic resin or glass are not easily distinguished. It is difficult to control the amount of light that varies depending on the state or type of leaves, and it is difficult to control the amount of light that varies depending on the state or type of leaf, and to adjust the reflection angle of the light source or to adjust the amount of light or brightness (illuminance). There are various problems such as low efficiency.

Republic of Korea Patent Registration No. 10-0933436 (2009. 12. 23. announcement) "leaf color sorter" Korean Patent Publication No. 1998-0072295 (published Nov. 5, 1998) "Color Separator"

An object of the present invention is to provide a three-stage color sorting apparatus that can achieve highly efficient color sorting and obtain leafy leaves of high quality (advanced) by three (three times) continuous sorting.

Another object of the present invention is a light source of a three-stage color sorting device, a red, green, blue three primary color LED (Light Emitting Diode) combined with one (One Chip) Type) Full color LED makes it easy to implement color illumination and brightness of the same color as leaf, making it more effective (efficient) The purpose is to be able to selectively remove.

Another object of the present invention is to adjust the duty ratio of the power applied to the one chip type (One Chip Type) full color LED, thereby adjusting the color and brightness to achieve optimal illumination.

Another object of the present invention is to replace or add a near-infrared (NIR) light source and a near-infrared CCD camera to effectively remove the glass or synthetic resin of the same or similar color as the screening target object, and some rotten or colored deformed and dissimilar leaves. Characterized in that it can be screened.

The three-stage color sorting apparatus of the present invention is installed on the upper part of the supply device for supplying the color sorting object to the first color sorting device, and installed in the lower part of the supply device to determine whether or not defective by picking up the color sorting object with a color CCD camera. The next defective product is sprayed with high-pressure air to remove the first color sorting device for sorting the primary color, and the color sorting object installed in the lower part of the first color sorting device and sorted with the primary color by a color CCD camera to determine whether or not it is defective. Determination of the defective product includes a second color screening device for secondary screening by spraying with high-pressure air to remove, the color screening object installed in the lower part of the second color screening device and the second color screening with a color CCD camera The third color sorting device that sorts the defective products by the method of spraying with high pressure air and removing them after imaging A second inclined chute installed between the first color sorter and the second color sorter, a third inclined chute installed between the second color sorter and the third color sorter, and the third color sorter It further comprises a fourth inclined chute installed in the lower portion of the device.

The first color sorting apparatus includes a first LED light source installed at a lower portion of the first inclined chute and transmitting light to a color falling object freely falling, a first housing surrounding the first LED light source, and the first LED light source. A first color CCD camera which acquires a color image by high-speed line-scanning the color sorting object image reflected by the color light of the color light, and the color sorting object, the foreign matter and dust near the first LED light source and the first color CCD camera Comparing a first case to prevent the flow, the first transparent window installed on one side of the first housing through which the reflected light of the color light source and the color selection object is transmitted, and the color selection object image acquired by the first color CCD camera High quality compression by the controller which outputs a removal signal when there is a defective product and judges whether good or defective goods are judged. A first injection nozzle and a first manifold for sorting good and defective goods by instantaneous injection of the defective product into the first discharge chute and discharged; and an air compressor for supplying high-pressure compressed air to the first manifold And a first ejector valve installed in the first manifold to instantly open or close the air path of the compressed air.

The second and third color sorting apparatuses are respectively installed under the second and third inclined chutes, respectively, and respectively include second and third LED light sources that transmit light to color-selecting objects falling freely, and the second and third LEDs. Second and third colors surrounding the light source, respectively, and second and third colors for respectively obtaining a color image by high-speed line scan of the color selection object image reflected by the color light of the second and third LED light sources. CCD cameras, the second and third LED light sources, and the second and third cases respectively blocking the color sorting object, the foreign matter, and the dust from entering the vicinity of the second and third color CCD cameras; Installed on one side of the third case to compare and judge the second and third transparent windows through which the reflected light of the color light source and the color selection object are transmitted, and the color selection object image acquired by the second and third color CCD cameras. After determining the defective product, A controller for outputting a removal signal and a high pressure compressed air are instantaneously injected by the removal signal outputted from the controller to inject the defective product into the second and third discharge chutes, respectively, to discharge the respective good and the defective product. Second and third injection nozzles and second and third manifolds; an air compressor for supplying high-pressure compressed air to the second and third manifolds, respectively; and installed in the second and third manifolds, respectively. And second and third ejector valves for instantaneously opening or closing the air passages of the compressed air.

It further includes a storage box is provided in the lower portion of the first discharge chute, the second discharge chute, the third discharge chute and the fourth inclined chute, respectively.

It further includes a first guide plate installed in the lower portion of the first injection nozzle and guides the leaf material of the selected good to enter the second inclined chute to slide safely.

It further includes a second guide plate installed in the lower portion of the second injection nozzle and guides the leaf material of the selected good to enter the third inclined chute to slide safely.

According to the present invention, since leafs, such as green tea, black tea, chrysanthemum, and herb, which have a small specific gravity and have a large change in size and color, are screened three times in a row (three times), the productivity is high and the color efficiency is very efficient. Rather, there is an effect of obtaining a high quality leafy.

In addition, since the present invention is a one-time three-stage color screening, there is no need for a transport facility for screening once-selected leafy objects into the leafy color sorter, and thus repeatedly transported several times along the transport facility. In the process of deterioration or degradation of the leaf shape of the leaf quality is not a phenomenon that does not occur.

In addition, the present invention uses a one-chip type full color LED in which three primary LEDs of red, green, and blue are combined into one, such as a leaf object to be screened. Color Easily implements color illumination and brightness, making it more effective (efficient) for leaf and other colored objects, such as glass or synthetic resins, and some rotten and discolored leaf and other leafy objects. There is an effect that can be screened out.

In addition, since the present invention implements light and the appropriate brightness of the same color as the object to be screened, it is possible to more effectively and efficiently screen the leaf and foreign matter, and the duty ratio of the power applied to the full color LED (Full Color LED) Since the lighting and brightness of the same color as the leaf to be screened is easily achieved by adjusting the method, heterogeneous leaf matter having different colors can be effectively and efficiently selected.

In addition, the present invention can control the duty ratio of the pulse applied to the full-color LED to prevent heat generation and power loss due to overcurrent of the full-color LED driver circuit, as well as stable brightness control by dissipating the full-color LED It is possible to produce various colors of light.

In addition, the present invention, by replacing or adding a near-infrared (NIR) light source and a near-infrared CCD camera can be effectively screened glass or synthetic resin of the same or similar color as the screening target leaf, some deteriorated or colored defective leafy and heterologous leafy It has an effect.

In addition, the present invention is not only easy to adjust the color and the appropriate brightness, such as leaf-like by using a full-color LED that implements the same color as the leaf instead of a fluorescent white light or a cold cathode tube (CCFL) as a light source, it is not necessary to replace the light source In addition, it is a very useful invention that the inverter is not required for lighting, the power consumption is small, and the volume is small, so it is easy to install, and the maintenance cost is greatly reduced due to long life and low failure rate.

1 is a block diagram showing an example of the present invention.
2 is a state diagram used as an example of the present invention.
Figure 3 is an enlarged view of the use state shown in one embodiment of the present invention.
4 is a cross-sectional view of the rocking device shown as an example of the present invention.
5 is a control circuit block diagram showing an example of the present invention.
6 is a front view of the full-color LED light source shown as an example of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the embodiments of the present invention, the same components as in the drawings are denoted by the same reference numerals as possible, and detailed descriptions of known configurations and functions are omitted so as not to obscure the gist of the present invention.

1 is a configuration diagram of the present invention three-stage color screening device 1 as an example, Figure 2 is a reference state of use, Figure 3 is a magnified view of the state of use.

The three-stage color sorting device (1) is installed on the base (3), the leaf material supply for supplying a color sorting object, for example, leaf material (2) such as tea (tea) to the first color sorting device (20) The device 10 and the leaf 2, which is installed under the leaf feed device 10 and supplied from the leaf feed device 10, are photographed with a color CCD camera to determine whether there is a defect, and then the defective goods are filled with high pressure air. A first color sorting device 20 for sorting primary colors by a method of spraying and removing the leaves, which is installed under the first color sorting device 20 and sorted with primary colors by the first color sorting device 20. The second color sorting device 30 and the second color sorting device 30 for sorting the secondary colors by photographing the object 2a with a color CCD camera to determine whether there are any defects, and then removing the defective products by spraying them with high pressure air. ) Installed in the lower part and the secondary color sorting by the second color sorting device 30 The leafy object 2c is photographed with a color CCD camera to determine whether it is defective, and then the defective product is composed of a third color sorting device 40 for sorting the third color by spraying with high-pressure air and removing the leafy object. ) Color selection is successively performed three times to maximize the sorting efficiency, as well as to obtain a high quality leaf or higher leaf (2e).

The leaf material supply device 10 is installed on the base 3 and a hopper 11 into which the leaf material 2 as a color screening object is introduced, and is disposed below the hopper 11 and discharged from the hopper 11. The lower portion of the leaf chute (2) is a flat chute feed chute (13) is seated and the leaf chute (2) seated on the supply chute 13 by vibrating and / or oscillating the feed chute (13) The first motor 15 is provided with a vibrator 14 and / or swinging device to fall to the first inclined chute 16 of the first inclined chute, and the first leaf to the leaf 2 falling from the supply chute 13 It is composed of an inclined chute (16).

The first color sorting device 20 is installed below the first inclined chute 16 to allow the first LED light source 21 or the first LED light source 21 to transmit light to the leaf 2 that slides and free-falls. 21 and the reflecting plate 22, the first housing 23 surrounding the first LED light source 21, the first LED light source 21 or the first LED light source 21 and the reflecting plate 22. A first color CCD camera 24 which obtains a color image by line scanning the leaf 2 image reflected by color light irradiated by the high speed; and the first color CCD camera 24; A first case 24a which blocks the leaf 2 and foreign matter or dust from entering the LED light source 21 and the first color CCD camera 24, and the first case ( 24a) a first transparent window 25 installed at one side to transmit the color light source and the leaf 2 reflected light, and an image (or image) of the leaf 2 obtained by the first color CCD camera 24. The controller 18 outputs a removal signal when the non-ferrous leaf material 2b and the foreign matter 2b (including foreign matter or dust) are judged as colors, and then, if there is a defective leaf material 2b or foreign matter, and the like. ) And instantaneous injection of high-pressure compressed air by the removal signal output from the controller 18 so that the defective leaf material 2b is discharged through the first discharge chute 28 and the good leaf material 2a. The first spray nozzle 26 and the first manifold which sort out the defective leaf material 2b and leave the good leaf material 2a to slide and fall to the second inclined chute 16a of the second color sorting device 30. A pneumatic hose and air compressor 17 for supplying high pressure compressed air to the folder 27, the first manifold 27, and the first manifold 27 are provided for the air passage of the compressed air. ) Is composed of a first ejector valve (27a) for instantaneously opening or closing the bottom of the first injection nozzle (26) The part is provided with a first guide plate 29 for guiding the leaf-like article 2a of the selected good to enter the second inclined chute 16a to slide safely.

In the present invention, the leaf 2 sliding and falling along the first inclined chute 16 is first sorted by the first color sorting device 20. That is, the leaf 2a that is determined to be good falls in the " a " direction of FIG. 2 and slides and falls along the second inclined chute 16a, and the primary colors are selected. When the object 2b is found (detected or recognized or detected) by the second color CCD camera 34 and judged to be defective by the controller 18, a removal signal is output to the output terminal of the controller 18, In response to the removal signal, the first ejector valve 27a is instantaneously opened and the compressed air supplied to the first manifold 27 is injected at a high pressure by the first injection nozzle 26. It moves in the direction of "b" of 2, is injected into the upper inlet 28a of the first discharge chute 28 and free-falls and is discharged to the lower first storage container 51, and it is in a state of leaving the normal runway, The leaf material 2a and the defective leaf material 2b are first separated and sorted.

The second color sorting device 30 includes a second LED light source 31 installed below the second inclined chute 16a and allowing light to pass through the free-falling leaf 2, and the second LED light source ( 31 and the leaf-shaped object reflected by the color light (Color light) irradiated by the second LED light source 31 or the second LED light source 31 and the reflecting plate 2) a second color CCD camera 34 which acquires a color image by line scanning the image at high speed; and the second LED light source 31 and the second color CCD camera 34; The second case (34a) and the second case (34a) to block the inflow of the leaf material (2) and foreign matter or dust in the vicinity of the (2), and the color light source and the reflected light of the leaf (2) is transmitted through Comparing and judging the image (or image) of the leaf 2a obtained by the second transparent window 35 and the second color CCD camera 34, the good leaf 2a and the defective leaf After the water 2d (including foreign matter, etc.) is determined, if there is a defective leafy object 2d, the controller 18 outputs a removal signal and controls the entire apparatus, and the removal signal output from the controller 18. By pressurizing the compressed air of high pressure instantaneously, the bad leaf material 2d is introduced into the second discharge chute 38 to be discharged to sort out the good leaf material 2c and the bad leaf material 2d. 2) the second injection nozzle 36 and the second manifold 37 and the second manifold 38, which are left to fall to the third inclined chute 16b of the third color sorting device 40; A second air compressor 17 and a peripheral device for supplying high pressure compressed air and a second air outlet installed in the second manifold 38 to instantly open or close the air path of the compressed air injected at high pressure; It consists of an ejector valve 38a, the lower portion of the second injection nozzle 36 is the leaf material (2c) of the selected good 3 the second guide plate 39 to incline chute (16b) guided to glide and safely enter a are installed.

In the present invention, the leaf-like material 2a of the good that slides and falls along the second inclined chute 16a is secondly sorted by the second color sorting device 30. That is, the leaf 2c determined to be good is slid and dropped in the "c" direction of FIG. 2 along the second inclined chute 16a, and the secondary colors are selected. The defective leaf 2d among the falling leaf objects is detected (detected or recognized or detected) by the second color CCD camera 34 and judged to be defective by the controller 18, and then the output terminal of the controller 18 Furnace removal signal is outputted, and the second ejector valve 37a is momentarily opened according to the removal signal, and compressed air supplied to the second manifold 37 is injected at a high pressure by the second injection nozzle 36. The leaf 2d moves in the direction of "d" in FIG. 2, is injected into the upper inlet 38a of the second discharge chute 38 and free-falls, and is discharged into the lower second storage container 52, and is normally slid. Since the furnace is out of the state, the good leaf matter 2c and the bad leaf matter 2d are separated and sorted secondarily.

The third color sorting device 40 is installed below the third inclined chute 16b to allow the third LED light source 41 or the third LED light source 41 to transmit light to the free-falling leaf 2. And color light irradiated by the reflector, the third housing 43 surrounding the third LED light source 41, the third LED light source 41 or the third LED light source 41, and the reflector. A third color CCD camera (44) for obtaining a color image by high-speed line scan of the leaf (2c) image reflected by the color light; and the third LED light source (41) and the third A third case 44a which blocks the leaf 2c and foreign matter or dust from entering the color CCD camera 44 and a side of the third case 44a, And the third transparent window 45 through which the reflected light of the leaf 2c is transmitted and the leaf (2c) image (or image) obtained by the third color CCD camera 44 is compared. The controller 18 for determining the good leaf matter 2e and the bad leaf matter 2f (including foreign matters, etc.), and if there is a bad leaf matter 2f, outputting a removal signal and controlling the entire apparatus; The high quality compressed air is instantaneously sprayed by the removal signal output from the controller 18 to inject the defective leaf material 2f into the third discharge chute 48 so that the good leaf material 2 and the defective leaf material are discharged. 3f and 3rd manifold 47 and the 3rd manifold 47 which sort out 2f and leave the high-quality leaf-shaped object 2e of good quality left to fall to the 4th inclined chute 49, 48) instantly opens or closes the air compressor 17 and its peripheral devices for supplying high pressure compressed air to the third manifold 48, and the air path of the compressed air injected at high pressure. It consists of a third ejector valve 47a.

The third discharge chute 48 and the fourth inclined chute 49 are installed to be inclined in opposite directions by the connecting portion 50, and the leaves 3e of the very good quality (high quality and high quality) sorted in the third are defective. Leaf fron 2f is separated and discharged. That is, the very good quality (high quality, high quality) leaf 2e is discharged | emitted and discharged to the 4th storage container 54, and the defective leafy object 2f is discharged and discharged to the 3rd discharge chute 48. As shown in FIG.

In the present invention, the leaf-like product 2c of the good product that slides and falls along the third inclined chute 16b is thirdly sorted by the third color sorting device 40. That is, the high-grade leaf 2e determined as good is slid and dropped in the " e " direction of FIG. 2 along the third inclined chute 16b to select the third color, and slides along the third inclined chute 16b. And when the defective leaf 2f among the falling leaf objects is found (detected or recognized or detected) by the third color CCD camera 44 and judged to be defective by the controller 18, the output of the controller 18 is outputted. As the removal signal is output to the terminal, in accordance with the removal signal, the third ejector valve 47a is instantaneously opened and the compressed air supplied to the third manifold 47 is injected under high pressure by the third injection nozzle 46. The defective leafy matter 2f moves in the direction “f” of FIG. 2, is injected into the upper inlet of the third discharge chute 48 and free-falls, and is discharged into the lower third storage container 53, and the normal runway Since it is in the state of departure, the fine leaf material 2e and the defective leaf material 2f of the good product are successively separated and sorted three times.

In the present invention, as shown in FIG. 3, the reflection plate 22 is installed near the LED light source 31 so that the illumination light is directly reflected to indirectly illuminate the leaf 2. And the like can be configured to be effectively removed (selectively).

Leafs falling along the discharge chute and the inclined chute under the first discharge chute 28, the second discharge chute 38, the third discharge chute 48, and the fourth inclined chute 49. (2e) or defective leaf matters (2b) (2d) (2f) and first, second, third, and fourth storage containers (51, 52, 53, 54) for storing foreign matters are provided, respectively. The first, second, and third storage barrels 51, 52, and 53 under the first discharge chute 28, the second discharge chute 38, and the third discharge chute 48 are defective leafy objects 2b ( 2d) and 2f are respectively stored in a drop shape, and a very good quality (high quality, high quality) leaf 2e, which has been sorted in the third, is stored in the fourth storage container 54 below the fourth inclined chute 49.

Of course, when the color difference needs to be sorted again in consideration of the degree or quantity of defective products, the defective leafy objects in the second and third storage containers 52 and 53 under the corresponding second and third discharge chutes 38 and 48. (2d) (2f) may be re-injected into the hopper 11 of the leaf material supply device 10 so that the three-stage color selection can be made once more.

For example, in the defective leaf material 2d housed in the second storage container 52 under the second discharge chute 38, a part of the leaf material 2a of the first sorted good is mixed, and the third discharge chute 48 Since the leaf material 2c of the second-class sorted goods is mixed also in the defective leaf material 2f accommodated in the lower 3rd storage container 53 in the lower part, in this invention, the 2nd, 3rd storage container 52, 53 is used. The leaf-shaped objects respectively dropped into the hopper 11 of the leaf-feeding device 10 were re-inserted into the first color sorting device 20, the second color sorting device 30, and the third color sorting device 40. In order to increase the screening rate by passing through the color once more, the hopper is also similar to the case where the leaf 2 is mixed in the first storage container 51 under the first discharge chute 28. Re-input to (11) can be a three-stage color screening once again.

The present invention is about 70% of the defective products are removed by the second (two-stage) screening of the leaf-like product from which about 50% of the defective products have been removed by the first (first-stage) screening, and if the third (three-stage) screening, the defective leaves As the upper body is removed more than about 95%, the sorting efficiency is very good, and the continuous color sorting is made three times without breakage, which greatly improves productivity, excellent workability, and obtains leafy products of excellent quality.

In the present invention, rocking devices 55 are provided in the second, third, and fourth storage containers 52, 53, and 54 in which the primary, secondary, and tertiary sorted leafs 2d, 2f, and 2e are respectively stored. (2d) (2f) (2e) drop-received by oscillating and vibrating by the (2) is discharged to the outlet of the second, third, fourth storage cylinders 52, 53, 54, respectively, 64 is dropped and recovered.

That is, as illustrated in FIG. 4, the second storage container 52 in which the second sorted defective leaf material 2d is accommodated is oscillated and vibrated by the swinging device 55 and the connecting member 58, and thus the drop housing is dropped. 2 d of leaf-shaped objects which are used are moved and discharge | emitted to the exit of the 2nd storage container 52, and are collect | recovered by the collection container 64, and the 3rd storage container 53 and the 4th storage container 54 are also the same. Of course, when a part of the leaf material (2a) of the good quality first sorted into the second storage container 52 is mixed, the leaf material supply device 10 to the entire leaf material (2a) (2d) to be recovered to the recovery container 64 By re-injecting into the hopper 11 of) can be made three-stage sorting once more.

As illustrated in FIGS. 1 and 2, the oscillation device 55 includes a dustproof opening 59 at both sides of a lower portion of the frame 59a for supporting the second, third, and fourth storage cylinders 52, 53, 54. The oscillation device 55 which is provided respectively, and the oscillation motion (or oscillation and vibration) which generate | occur | produces by the motor 56 and the eccentric member 57 or the motor 56 and the crank mechanism in the substantially middle of the said frame 59a is provided. When the motor 56 is operated and the rotational force is transmitted to the horizontal axis through the belt, the rotation is uneven by the eccentric member 57 or the crank mechanism (not shown) installed eccentrically on the horizontal axis, so that the eccentric member 57 Or the crank mechanism is oscillated and vibrated, and the connection member 58 which is bearing-coupled or axially coupled to the eccentric member 57 is connected to the frame 59a. Therefore, the leaf-shaped objects dropped and received while the second, third, and fourth storage containers 52, 53, 54 are rocked and vibrated are recovered to the recovery container 64 as shown in FIG. The recovery container 64 is provided at the outlet of the second, third and fourth storage containers 52, 53 and 54, respectively.

In the present invention, as the first, second, and third LED light sources 21, 31, and 41, three primary LEDs of red, green, and blue are combined into one as shown in FIG. One-chip type LEDs consist of a plurality of full-color LED assemblies, but the controller 18 controls the duty ratio to provide color illumination and brightness of the same color as the leaf 2. It is possible to achieve more effective (efficient) screening of leafy objects (2) to be screened and defective leafy materials of different colors (such as some decayed or discolored leafy leaves and heterogeneous leafy leaves) or foreign matter (such as glass or synthetic resin). In addition, by selecting the color in three stages very efficient color screening is achieved.

The first, second, and third LED light sources 21, 31, and 41 are combined with three primary LEDs 62 of red, green, and blue on the surface of the printed circuit board 60. Full Color LEDs of One Chip Type are installed in a predetermined interval and a predetermined line, such as 2 lines or a plurality of lines, and a predetermined interval between the full color LEDs 62 occurs. 5 mm-18 mm are preferable so that it may not.

Each of the full-color LEDs 62 has terminals 63 configured to emit light selected by a combination of red, green, and blue. The terminal 63 has a (+) terminal supplied with (+) power and a (-) terminal supplied with (−) power.

A plurality of through holes 61 are formed at upper and lower portions of the printed circuit board 60 to fix them at an installation position, and a power supply connector (not shown) is mounted at one side of the printed board 60 and a power line connector (not shown). And heat dissipation means (not shown) constituted by a small aluminum member or the like for dissipating the generated heat.

In the present invention, the light emitting detection sensor F connected to the controller 18 is additionally installed in the vicinity of the first, second, and third LED light sources 21, 31, and 41 so that the first, second, and third LED light sources 21 (31) and (41) can be configured to detect the on and off states, respectively.

The present invention utilizes one-chip type full-color LEDs in which three primary LEDs of red, green, and blue are combined into one to illuminate colors such as leafs to be screened. By making it easy to implement (照明) and brightness, the leaf material (2) and other foreign matters of different colors (such as glass or synthetic resin, and some rotten or discolored leaf and heterogeneous leaf) can be removed more effectively and efficiently. It becomes possible.

The present invention adjusts the illumination duty ratios of the first, second, and third LED light sources 21, 31, and 41 by pulse width modulation to illuminate colors of the same color as the leaf 2 and have appropriate brightness. Easiness is achieved, and even if the type of leaf 2 is changed, the controller 18 can adjust the duty ratio so that it can quickly respond to the color and brightness according to the type of changed leaf.

In the present invention, as a method of controlling and sending a control signal to the driver circuit of the full color LED 62, a method of controlling a direct current (DC) continuous current and a method of controlling a pulse current may be applied, but the response speed ( Pulse based on Pulse Width Modulation (PWM) around 10㎑, which is easy to produce various colors and brightness, rather than DC continuous current control, which has slow response time and poor resolution. Current control is preferred.

For example, the pulse width modulation (PWM) method, the output period (Period) of the micro-controller is kept constant, this period is divided into 0 to 255 pulse width of 256 steps to the duty cycle (Duty Cycle) Individual control allows the output signal to be controlled step by step from 0% to 100% .When the duty ratio is 0, the full color LED 62 is turned off.When the duty ratio is 255, the first, second, and third The light output of the LED light sources 21, 31 and 41 is 100%.

In this way, it is possible to control the duty ratio applied to the three primary LEDs of red, green, and blue, which constitute one-chip type full-color LEDs. It is easy to realize the lighting and brightness of (Color).

For example, when adjusting the brightness while maintaining the color of the full color LED 62, the same color by increasing the power duty ratio applied to the LED of the red, green, and blue in the same ratio The brightness is adjusted.

By controlling the duty ratio of the pulse applied to the full color LED, the present invention can not only prevent heat generation and power loss due to overcurrent of the full color LED driver circuit, but also independently control the brightness of each of the three color RGB LEDs. It is possible to produce various colors of light.

On the other hand, the leaf 2 sliding along the first inclined chute 16 is a state in which both good and defective products are mixed, the first LED light source while falling to the selection area (y) below the first inclined chute 16 The reflected light R1 of the leaf 2, which is color-lit by the 21 and reflected by the color illumination, is imaged and incident in real time by a high-speed line scan method by the first color CCD camera 24, and the leaf-shaped object ( The color image of 2) is obtained in real time and input to the controller 18, and then the color is judged (determined) as good or bad, and when the bad leaf is determined to be falling (determined), a removal signal is output from the controller 18. As the first ejector valve 27a is opened by the removal signal, the air passage of the compressed air is momentarily opened, so that the high pressure compressed air is the first manifold 27 and the first injection nozzle 26. Instantaneously sprayed through the poor leaf 2b is the first discharge chute (28) The leaflet (2a) is discharged into the first storage container (51), and the primary sorted leafy leaf material (2a) is slid and dropped into the second inclined chute (16a) of the second color sorting device (30). ) And poor leafy objects (2b) are selected for primary colors.

The primary sorted leaf 2a is color-lit by the second LED light source 31 while falling into the sorting area under the second inclined chute 16a, and the leaf 2a is reflected by the color illumination. The reflected light R2 is captured and entered in real time by a high-speed line scan method by the second color CCD camera 34, and a color image of the leaf 2a is obtained in real time and inputted to the controller 18, and then colored as good or bad. When it is determined (determined), and when it is determined (determined) that the defective leaf material is falling (determined), the removal signal is output from the controller 18, and the second ejector valve 37a is opened in response to the removal signal, and the Since the passage is instantaneously opened, the high-pressure compressed air is instantaneously injected through the second manifold 37 and the first injection nozzle 36, so that the defective leaf material 2d passes through the second discharge chute 38. Discharged into the second storage container 52, the second-class sorted good leaf 2c is a third The secondary colors are sorted by the good leaf material 2c and the poor leaf material 2d while sliding and falling to the third inclined chute 16b of the color sorting device 40.

The secondary screened leaf 2c is color-lit by the third LED light source 41 while falling into the screening area below the third inclined chute 16b, and the leaf 2c is reflected by the color illumination. The reflected light R3 is captured and entered in real time by a high-speed line scan method by the third color CCD camera 44, and a color image of the leaf 2c is obtained in real time and inputted to the controller 18, and then colored as good or poor. When it is determined (determined), and when it is determined (determined) that the defective leaf material is falling (determined), a removal signal is output from the controller 18, and the third ejector valve 47a is opened in response to the removal signal, thereby generating a compressed air. Since the path is opened instantaneously, the high pressure compressed air is instantaneously injected through the third manifold 47 and the third injection nozzle 46 and the defective leaf 2f is along the third discharge chute 48. While being slid and dropped, it is discharged into the third storage container 53, and the third sorted high The leaf 2e is a high grade leaf 2e because the third color sorting discharged to the fourth storage container 54 while sliding and falling into the fourth inclined chute 49 separated by the isolation part 50 is made. ) And high efficiency color sorting is achieved.

When the monochromatic white light source is used as in the present invention, the CCD camera recognizes the natural brightness of the leaf. That is, when the color of the leaf is similar, there are many limitations in the CCD camera recognition, whereas as in the present invention, the one-chip type in which three primary LEDs of red, green, and blue are combined into one Chip Type) In the case of using the full-color LED 62, the light source corresponding to the characteristics of the leaf 2 is strongly illuminated and the light source that is not is relatively weakly irradiated so that the difference between good and defective products and good and foreign objects can be easily increased. Identification and color selection are possible.

For example, when the color of the good leaf product is green, the good color is green, but when the defective product has pink color, the first, second, and third LED light sources 21 and 31 are used to improve the color difference between green and pink. By adjusting the duty ratio of (41), respectively, the red color is stronger and the green color is slightly weakened, so that the defect of pink becomes relatively brighter, so the difference between the green of the good leaf and the pink of the bad leaf is relatively large. Therefore, good and defective products can be easily identified and effectively screened and removed due to the same leaf but color difference.

In addition, in the case of leafs and synthetic resins having similar sizes and colors but different surface light reflectances, it is difficult to identify or discriminate them by the conventional method, but in the present invention, the color and light reflectances of the leafs and synthetic resins are clearly distinguished by color illumination. Are identified and determined.

In the present invention, a red, green, blue three primary LED and an infrared LED are combined into one chip type (One Chip Type) full color LED, or red, green, One-chip type full-color LEDs in which blue three-color LEDs are combined with a separate near-infrared LED are used in addition to the color selection light quantity control. By using the change point, it can be configured to effectively screen the leaves and foreign objects of the same or similar color or contrast.

For example, near-infrared (NIR) LEDs are employed instead of the first LED light source 21 of the first color sorter 20 to enable near-infrared illumination, and the first CCD camera 24 of the first color sorter 20 is provided. By using near infrared (NIR) CCD camera to make near-infrared illumination, the difference in color or contrast is significantly changed by the difference in water absorption, so it is possible to effectively select leaf and foreign objects of the same or similar color or contrast. Will be.

In the above, the color or contrast of the leaf and the foreign matter is the same or similar under visible light, but the color or contrast of the leaf 2 is significantly different due to the difference in water absorption under NIR illumination. The same or similar leaf and foreign matter can be effectively screened.

In the present invention, the analog signal obtained by line scanning the leaf 2 with the first, second and third color CCD cameras (or color image sensors) 24, 34 and 44 is converted into a digital signal and then distorted. By correcting the signal flat, it is possible to more reliably determine whether the leafy matter is good or bad.

That is, according to the present invention, an A / D converter is used to obtain an image signal of a leaf-like object obtained by performing high-speed line scan with a raw signal such as first, second and third color CCD cameras 24, 34 and 44. To convert the digital signal into a digital signal, and then correct and calculate the digital image image signal by using the image processing device and the calculating device of the controller 18, and output the corrected signal to the first, second, and third color CCD cameras 24 ( 34) (44) By correcting the image signal generated from the distortion of the lens without distortion, the first, second, and third color sorting devices 20, 30, and 40 can reliably sort out the good and bad of the leaf 2. As a result, the screening rate is further improved.

The present invention is impossible to select if the color or contrast of the leaf material 2 and the foreign matter is the same or similar under white light illumination using a fluorescent lamp or a cold cathode tube (CCFL), but the same color as the leaf material 2 using a full color LED. And the leaf-shaped object by allowing the controller 18 to input image data captured by the first, second, and third color CCD cameras 24, 34, 44, respectively, in the state of being illuminated with the same amount of light. 2) and poor leaf and foreign matters are effectively screened.

5 is a circuit block of the controller 18 shown as an example of the present invention. The mode is selected at the input of the control unit C, which is composed of a PLC or a central processing unit. The present invention selects colors 1, 2, and 3 of the present invention. Reset unit for resetting in case of abnormality of keypad and control unit C which can select ON / OFF of communication device 20, 30, 40, communication mode, etc. and input and set various data. A setting unit S composed of a light source, a color CCD camera 24, 34, 44, and an LED light source 21, 31 for obtaining color (or color and contrast) of leaf and foreign matter from color illumination light. The light emission detection sensor F composed of a photoconductive cell CDS, a photosensor, and the like which monitors the on / off state of 41 is connected, respectively.

On the output of the control unit C, a display unit D which displays various operation states, operation modes, set values, present values, operation states of various devices, various abnormalities, and the like, and LED light sources 21, 31 and 41. LED driver (L) for supplying driving power to the apparatus, an LED light source (21) (31) (41) connected to the output of the LED driver (L), and first, second and third injection nozzles (26) (36). Vibrating and / or oscillating the ejector valves 27a, 37a and 47a for opening and closing the ejectors 27, 37 and 47 so that the high pressure air can be injected into the The vibrator 14 and / or the first motor 15 and the second, third, and fourth falling down to the lower first inclined chute 16 while spreading the leaf 2 seated on the supply chute 13 evenly. The rocking device 55 is made to oscillate (or vibrate) the storage containers 52, 53, and 54 to discharge the high quality leaf material 2e and the poor leaf material 2f, 2d, 2b which are dropped and discharged. Two motors 56 are connected, respectively.

The PWM driver signal of the control unit C is output to the LED driver L, and thus the LED light sources 21 and 31 and 41 are driven by the duty ratio of the power (or pulse) applied by the pulse width modulation method. Colors of the same color as the objects (2) (2a) (2c) and illumination of appropriate brightness are achieved.

For example, the pulse width modulation (PWM) method, the PWM output period (Period) is kept constant, this period is divided into 0 ~ 255 to control the pulse width of 256 steps by the duty cycle (Duty Cycle) By controlling the output signal step by step from 0% to 100%, when the duty ratio is 0, the LED light sources 21, 31, 41 are turned off, and when the duty ratio is 255, the LED light source ( The light output of 21) (31) (41) is 100%, and by controlling the duty ratio in this manner, it is possible to easily realize the illumination and brightness of the color such as the leaf to be screened. do.

An input / output unit of the control unit C includes an operating program and color CCD cameras 24, 34, 44, LED light sources 21, 31, 41, ejector valves 27a, 37a, 47a. , The memory unit M, which stores control programs for controlling various actuators such as the vibrator 4, the first and second motors 15, 56, and the like, and is controlled or communicated with or exchanged with the main controller. Networks equipped with communication interfaces are connected to each other. In the network, a plurality of color CCD cameras 24, 34, 44, LED light sources 21, 31, 41, and the like are remotely controlled and a plurality of three-stage color sorting apparatuses 1 are controlled. The controllers are each connected and remotely controlled.

Although not shown in the drawing, a drive drive for driving various actuators is connected to the output of the controller C, and the setting unit S may use a conventional keypad, a switch group, a touch screen, or the like.

The data of the memory unit is read and updated by the control unit C, and used for various control, display, and alarm of the actuator, and newly created or inputted data, modified data, operation data, etc., through the controller or the main controller are connected to the communication interface. It is sent and received through the network.

The display unit (D) indicates a power indicator indicating power supply status, various sensors, actuators, etc. are in operation, and is composed of a liquid crystal display (LCD), seven segments, light emitting diodes, or the like depending on the situation. The display may be configured to facilitate the use.

In the present invention, the first, second and third color CCD cameras 24, 34 and 44 are closed from the outside by the first, second and third cases 24a, 34a and 44a to disturb or influence external visible light. Do not receive.

The air compressor (17) and the first, second and third manifolds (27) (37) (47) and the first so that the poor leaf material (2b) (2d) (2f) or foreign matter and the like to be selected by spraying at a high pressure The high pressure compressed air is supplied to the 1, 2, and 3 injection nozzles 26, 36, and 46. The controller 18 controls the first, second, and third manifolds 27, 37, and 47. Ejector valves 27a, 37a, 47a receiving the respective openings are respectively opened or closed, respectively, of the first, second, and third manifolds 27, 37, 47.

Defective leaf objects 2b, 2d, 2f and foreign matter are detected by the first, second, and third color CCD cameras 24, 34, 44 and the LED light sources 21, 31, 41. The compressed air supplied to the first, second, and third injection nozzles 26, 36, 46 is instantaneously opened through the hose while the ejector valves 27a, 37a, 47a are opened by the controller 18. When the high-pressure sprayed into the poor leaf (2b) (2d) (2f) and foreign matter is discharged to each discharge chute 28, 38, 48, the final good leaf 2e is inclined chute (49) Is discharged.

In the present invention, the first, second and third LED light sources 21, 31 and 41 are provided by the emission sensor F installed in the vicinity of the first, second and third LED light sources 21 and 31 and 41. Since the light is turned on and off, the illumination intensity of the LEDs may be reduced due to a failure or turn off of some LEDs during operation (operation), or at least one of the first, second and third LED light sources 21, 31, 41. The failure of LED light source or lighting failure can be detected immediately, so that it can be coped quickly.

In the present invention, the first and second guide plates 29 and 39, which are inclined at the lower portions of the first and second injection nozzles 26 and 36, respectively, are provided with all of the leaves 2a and 2c of the selected good. Since each of the second and third inclined chute (16a) (16b) is guided to enter and glide, leaves of the good (2a) (2c) of the good departed from the second and third inclined chute (16a) (16b) I never do that.

In the present invention, since the reflected illumination light by the reflector 22 installed near the LED light source 31 is indirectly illuminated with the leaf 2, as shown in FIG. Can be screened and removed more effectively (efficiently).

On the other hand, the conventional leaf color sorter is a one-stage sorting structure for sorting leafs only once, so that the productivity is low and the sorting efficiency is low, and in order to obtain a leaf of good quality, the leaf color sorter is selected once. As it is repeatedly screened by several times, not only workability is low and productivity is low, but also a transport facility for re-selection of the screened leafs with a leaf color sorter is required. There was a problem that the overall quality of the leaf material is largely damaged or deteriorated in the process of inputting) and color selection, but the total quality is greatly reduced. However, in the present invention, the above-described conventional problems are solved all at once.

In the present invention, the specific gravity, low in shape, shape and size, and color change of leafy things such as green tea, black tea, chrysanthemum, herbs, etc. have been described as color selection, rice, barley, wheat, legumes even if the efficiency is somewhat low Similarly, it can be applied to color selection of grains having a large specific gravity.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It is self-evident to those of ordinary skill.

(1)-3 stage color sorter (2)-leaf
(2a) -secondary sorted fronds (2c) -secondary sorted fronds
(2e)-Selected Fine Leaf (2b) (2d) (2f)-Poor Leaf
(3)-expectation (10)-leaf feeder
(11)-hopper (13)-supply chute
(14)-vibrator (15) (56)-motor
(16)-first slope suit (16a)-second slope suit
(16b)-Third Slope Suit (17)-Air Compressor
(18)-Controller (20)-First Color Sorter
(21)-First LED Light Source (22)-Reflective Plate
(23)-First Housing (24)-First Color CCD Camera
(24a)-First Case (25)-First Clear Window
(26)-First Injection Nozzle (27)-First Manifold
(27a)-First ejector valve (28)-First discharge chute
(28a)-Inlet of first discharge chute (29)-First guide plate
(30)-Second Color Sorter (31)-Second LED Light Source
(33)-Second Housing (34)-Second Color CCD Camera
(34a)-Second Case (35)-Second Clear Window
(36)-Second Injection Nozzle (37)-Second Manifold
(37a)-Second ejector valve (38)-Second discharge chute
(38a)-Inlet of the second discharge chute (39)-Secondary guide plate
(40)-Third Color Sorter (41)-Third LED Light Source
(43)-Third Housing (44)-Third Color CCD Camera
(44a)-Third Case (45)-Third Clear Window
(46)-Third Injection Nozzle (47)-Third Manifold
(47a)-Third Ejector Valve (48)-Third Discharge Chute
(48a)-inlet of third discharge chute (49)-fourth inclined chute
(50) (51) (52) (53)-Reservoir (55)-Swivel
(64)-Recovery Bin (C)-Settings
(D)-indicator (F)-light-emitting sensor
(L)-LED Driver (M)-Memory

Claims (11)

delete A supply device installed at an upper part to supply a color screening object to the first color screening device;
A first color sorting device installed at the lower part of the supply device and configured to image a color sorting object with a color CCD camera to determine whether there is a defect, and to sort out the first color by spraying the defective product with high pressure air;
A second color sorting device installed under the first color sorting device and determining whether the color sorting object is selected by primary color with a color CCD camera to determine whether there is a defect, and then sorting the second defective product by spraying with high pressure air to remove the second color sorting device. ;
A third color sorting apparatus installed under the second color sorting apparatus and determining whether or not the color sorting object is sorted by the second color with a color CCD camera, and then sorting the defective products by high-pressure air to remove the third color sorting apparatus. ;
A second inclined chute installed between the first color sorting device and the second color sorting device;
A third inclined chute installed between the second color sorting device and the third color sorting device;
A fourth inclined chute installed under the third color sorting apparatus;
Including,
The first color sorting device,
A first LED light source installed at a lower portion of the first inclined chute to transmit light to the free fall color selection object;
A first housing surrounding the first LED light source;
A first color CCD camera which obtains a color image by line scanning at high speed the color sorting object image reflected by the color light of the first LED light source;
A first case which blocks color selection objects, foreign substances and dust from entering the vicinity of the first LED light source and the first color CCD camera;
A first transparent window installed at one side of the first housing and configured to transmit reflected light of a color light source and a color selection object;
A controller for comparing and determining the color screening object image acquired by the first color CCD camera to determine a good product and a defective product, and then output a removal signal when there is a defective product;
A first injection nozzle and a first manifold for sorting good and defective products by instantaneously injecting high-pressure compressed air by the removal signal output from the controller to discharge the defective products into the first discharge chute;
An air compressor for supplying high pressure compressed air to the first manifold;
A first ejector valve installed in the first manifold to instantly open or close compressed air of compressed air;
Including,
A first guide plate installed at a lower portion of the first injection nozzle to guide the leaf material of the selected good to enter the second inclined chute and to slide;
Three-stage color sorting device further comprising. The method of claim 2,
The second color sorting device,
A second LED light source installed below the second inclined chute to transmit light to the free-falling color sorting object;
A second housing surrounding the second LED light source;
A second color CCD camera which obtains a color image by line scanning at a high speed a color sorting object image reflected by color light of the second LED light source;
A second case which blocks color selection objects, foreign substances and dust from entering the vicinity of the second LED light source and the second color CCD camera;
A second transparent window installed at one side of the second case and transmitting reflected light of a color light source and a color selection object;
A controller for comparing and determining the color screening object image acquired by the second color CCD camera to determine a good product and a defective product, and then output a removal signal when there is a defective product;
A second injection nozzle and a second manifold for sorting good and defective products by instantaneously injecting high-pressure compressed air by the removal signal output from the controller to introduce the defective products into the second discharge chute for discharge;
An air compressor for supplying high pressure compressed air to the second manifold;
A second ejector valve installed in the second manifold to instantly open or close the air path of the compressed air;
Including,
A second guide plate installed at a lower portion of the second injection nozzle to guide the leaf material of the selected good to enter the third inclined chute and slide;
Three-stage color sorting device further comprising. delete delete delete delete delete delete delete The method of claim 2 or 3;
The LED light source is installed on the surface of the printed board by placing a plurality of one-chip type full color LEDs in which three primary LEDs of red, green, and blue are combined into one. ,
The gap between the full-color LED is 5mm ~ 18mm, blackening does not occur,
And adjusting the power duty ratio applied to the full color LED to achieve illumination and brightness of the same color as the color selection object.

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