KR100718707B1 - The light detector-assembly of a color sorter - Google Patents

Abstract

The present invention relates to a photodetector assembly of a color sorter, comprising a body having a plurality of light receiving holes corresponding to each channel on a chute, wherein one side of the light receiving hole is equipped with a lens, and the other side is equipped with a slit panel. The present invention relates to a photodetector assembly of a color sorter, which minimizes photodetection errors.

The present invention configured as described above integrates a conventional barrel and a lens mount, that is, a barrel in which a lens and a slit are respectively provided, and a lens mount for holding the barrel, and are configured as one main body, and a plurality of light receiving units are provided in the main body. By forming a hole so that a lens is mounted on one side of the light receiving hole and a slit panel is mounted on the other side, the inconvenience of having to individually couple the lens and the slit individually to a predetermined position inside each barrel in the manufacturing step. It eliminates the positional error between the slits generated during fitting, and at the same time provides the effect of shortening working time, improving productivity, and reducing manufacturing cost, and even if a certain external shock is applied at the use stage, the position of the slit as well as the lens is Constantly maintained at all times, reducing the frequency of failures and minimizing photodetection errors Provides the effect of maximizing screening efficiency.

 Color sorter, lens, slit, light receiving hole, bracket, chute

Description

LIGHT DETECTOR-ASSEMBLY OF A COLOR SORTER}

1 is a cross-sectional view schematically showing an operating state of a conventional color sorter,

FIG. 2A is a perspective view illustrating a coupling between the barrel and the lens mount, which are main components of the light detecting assembly of FIG. 1;

2B is an exploded perspective view of a lens barrel and a lens mount, which are main components of the photodetector assembly of FIG. 1;

3 is a perspective view showing an embodiment of a main body, a lens, and a slit panel which are main components of the photodetector assembly of the present invention color sorter,

4 is an exploded perspective view of FIG. 3;

5 is a perspective view showing another embodiment of a main body, a lens, and a slit panel, which are main components of the photodetector assembly of the present invention color sorter,

6 is an exploded perspective view of FIG. 5;

7 is a perspective view showing an embodiment of a photodetector assembly of the present invention color sorter,

FIG. 8 is a sectional view seen from A-A of FIG. 7,

9 is an exemplary view showing a coupling state of the present invention as viewed from the chute surface.

*** Explanation of symbols for main parts of drawing ***

10; Hopper, 20; tympanum,

30, 300; Channel 40, 400; suit,

50; Light detecting unit, 60; Lighting Equipment,

70, 700; Photodetector assembly, 71, 210; lens,

73, 230a; Slit, 75; Torso,

77; Lens mount, 79; Installation,

90, 900; Granular material, 110; Air Injector,

200; Main body, 230; Slit Panel,

250; Light receiving hole, 270; Jaw,

290; Upper bracket, 290a; Lens Support,

290b; Lens fasteners, 310; Lower Bracket,

310a; Openings, 330; Slit Panel Inlet,

350; Sensor 370; Sensor module,

390; Sponge pads, 410; Circuit board.

The present invention relates to a photodetector assembly of a color sorter, and in particular, a conventional barrel and a lens mount, that is, a body having a lens and a slit respectively provided therein and a lens mount for holding the barrel integrally configured as one main body. In addition, a plurality of light receiving holes are formed in the main body so that a lens is mounted on one side of the light receiving hole and a slit panel is mounted on the other side, so that the lens and the slit are individually placed at predetermined positions inside each barrel in the manufacturing step. It provides the effect of reducing the working time, improving productivity, and reducing the manufacturing cost according to eliminating the inconvenience of having to be combined with each other and the slit generated during the fitting. The slit position of the lens as well as the lens is always kept constant so that the frequency of failure The present invention relates to a light detection assembly of a color sorter that maximizes screening efficiency by reducing the number of light and minimizing the light detection error.

In general, the color sorter is a device used for screening grains such as rice, barley, etc., as well as coffee beans or other granular materials (hereinafter referred to as granular products). It is composed of a conveying device for dropping the granular material along a certain trajectory or path, and an optical detection device for optically detecting the falling granular material.

In more detail, as shown in the cross-sectional view of the operation state of the conventional color sorter of FIG. 1, the granular material supply device is located at an upper portion of the main body and serves as an inlet of the granular material 90, the hopper 10. And a diaphragm 20 formed at a lower portion thereof to generate a predetermined vibration, and the conveying apparatus is a chute having a plurality of channels 10 separating and separating the supplied granular material 90 through a predetermined path downward. 40, wherein the optical detection device optically detects the falling granular material 90 to inject air into a pair of light detecting units 50 and the granular material 90 determined to be defective. By the air injection device 110 is separated from the normal granular material 90 by.

Here, the light detecting unit 50 performs a photodetection by separating the wavelength of the reflected light and the illumination unit 60 made up of a pair of lighting means and a reflecting plate for illuminating the granular material 90, respectively. It is presupposed that it consists of the photodetecting assembly 70 which judges the defective granular material 90 by the value.

The photodetector assembly 70 typically includes a lens for implanting an image of a granular material falling along each channel on a chute, a slit that prevents disturbance and at the same time increases the degree of implantation through selective light reception, the lens and the slit. Fixing inside and blocking the disturbance to the light source of the other channel, sensor for determining whether the granular material is defective by separating and detecting the wavelength of the reflected light, a sensor module in which the sensors are integrated, and the barrel and the It consists of a lens mount that fixes the sensor module to the circuit board.

The lens barrel and the lens mount of the photodetector assembly 70 configured as described above are coupled to and separated from the perspective view of the barrel and lens mount of the conventional color discriminator of FIGS. 2A and 2B. The plurality of barrels 75 coupled to the inside of the slit 73 are coupled to the mounting holes 79 formed on the lens mount 77 to be used to assemble and use the barrels. In the manufacturing step of (75), the lens 71 and the slit 73 are individually coupled to a predetermined position inside each barrel 75, which causes inconvenience, as well as a long working time, resulting in decreased productivity. And manufacturing costs also have the problem of increasing.

In addition, it is very difficult to block the positional error between the slit (73) generated during fitting because the slit (73) must be fitted to the inside of the barrel (75).

In addition, when a predetermined or more external shock is applied to the photodetector 70 as well as the color sorter according to the use, the respective barrels 75 fitted to the mounting holes 79 on the lens mount 77 may be In many cases, the impact caused fine rotation or fine vibration in the mounting hole 79.

Therefore, the positions of the slits 73 installed in the barrel 75 to prevent disturbance and to improve the degree of conception by selective light reception are different from each other in the barrel 75 so that the light detection error may be increased significantly. As a result, it was not possible to properly determine whether the granular material 90 falling through each channel 30 on the chute 40 was poor, and had a problem of causing a frequent failure of the conventional color sorter. .

Therefore, there is a need for a photodetector assembly of a new color sorter that can solve the above problems.

The present invention has been made in view of the above necessity, by integrating a conventional barrel and a lens mount, that is, a barrel in which a lens and a slit are to be provided respectively, and a lens mount for fixing the barrel to form a single body. In the manufacturing step of the conventional photodetector assembly, the inconvenience of having to individually fit the lens and the slit at a predetermined position inside each barrel is eliminated, and the working time is reduced while eliminating the position error between the slit generated during fitting. It is an object of the present invention to provide a color detection assembly of a color sorter that improves productivity, improves productivity and reduces manufacturing costs.

In addition, another object of the present invention is to form a plurality of light receiving holes in the main body so that the lens is mounted on one side of the light receiving hole, the slit panel is mounted on the other side, even if a predetermined or more external shock is applied in the use step of course the lens The position of the slit is always kept constant to provide a light detection assembly of a color sorter to maximize the sorting efficiency by reducing the frequency of failure and minimizing the light detection error.

In order to achieve the above object, the present invention comprises a main body having a plurality of light receiving holes corresponding to each channel on a chute, wherein a lens is mounted on one side of the light receiving hole, and a slit panel is mounted on the other side. It is characterized in that the light detection assembly of the color sorter, characterized in that to minimize the light detection error.

Here, the lens is preferably mounted on the engaging jaw formed at one end of the light receiving hole.

The lens may be mounted on the locking jaw by engagement with the upper surface of the main body of the upper bracket having the lens support for receiving the lens, or the main body of the upper bracket having the lens fixing tool for accommodating and fixing the lens. More preferably, it is mounted on the locking jaw by coupling with an upper surface.

In the slit panel, a plurality of slits corresponding to the light receiving hole are preferably fixed at equal intervals.

Here, the slit panel is more preferably mounted on the other side of the light receiving hole by coupling with the lower surface of the main body of the lower bracket having an opening corresponding to the plurality of slits.

In addition, it is even more preferable that the lower surface of the main body is further provided with a slit panel indenting portion that can indent the slit panel inward.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Of course, the scope of the present invention is not limited to the following examples and can be variously modified by those skilled in the art without departing from the technical gist of the present invention.

3 is a perspective view showing an embodiment of a main body, a lens, and a slit panel which are the main components of the photodetector assembly of the present invention color sorter, FIG. 4 is an exploded perspective view of the present invention, and FIG. FIG. 6 is an exploded perspective view illustrating another embodiment of a main body, a lens, and a slit panel, which are main components of the light detection assembly, and FIG. 6 is an exploded perspective view of FIG. 5, and FIG. 7 is an embodiment of the light detection assembly of the color discriminator according to the present invention. 8 is a cross-sectional view taken from AA of FIG. 7, and FIG. 9 is an exemplary view showing a coupled state of the present invention as viewed from the chute surface. However, description of the same parts as in the prior art is omitted.

First, as shown in FIGS. 3 to 6, the photodetector assembly 700 of the present inventor's colorimetric selector is one of the barrel 75 and the lens mount 77 which are essentially required for the photodetector assembly 700. The lens 210 and the slit panel 230 are united to the main body 200 so as to receive the light reflected by the granular object 900 to the plurality of light receiving holes 250 provided in the main body 200. It is characterized in that it is made to mount.

More specifically, as shown in FIG. 9, a number of light receiving holes 250 corresponding to each channel 300 on the chute 400 is formed in the main body 200, and at one side of the light receiving hole 250. The lens 210 is mounted, and the slit panel 230 is mounted on the other side of the light receiving hole 250.

Here, as shown in FIGS. 4 and 6, at one end of the light receiving hole 250, a locking jaw 270 may be formed to seat and support the lens 210. Of course, the inner diameter of the locking step 270 is configured to be somewhat smaller than the diameter of the lens 210 is to be made so that the lens 210 does not fall into the light receiving hole 250.

The lens 210 supported by the locking jaw 270 may be fixedly mounted to the locking jaw 270 of the light receiving hole 250 by an adhesive such as an adhesive resin. As shown in Figure 3 to 6 should be fixed and mounted by the upper bracket 290 is bolted to the upper surface of the main body 200.

Here, the upper bracket 290 is configured to have a plurality of lens support 290a for receiving and simply supporting a portion of the lens 210, as shown in Figures 3 and 4, or Figures 5 and As shown in FIG. 6, it is preferable to have a plurality of lens fasteners 290b for accommodating a portion of the lens 210 accommodated at all without accommodating a portion of the lens 210 and staying on a simple support.

That is, when the lens support 290a is provided on the upper bracket 290, the lens 210 is provided at one side of the light receiving hole 250 of the main body 200 as shown in FIG. 4. After being individually seated at 270, the upper bracket 290 is pressed to the circumference of the lens support 290a of the upper bracket 290 when the upper bracket 290 is fixedly coupled to the upper surface of the main body 200 by bolting. And is mounted on one side of the light receiving hole 250.

Meanwhile, when the lens fixing tool 290b is provided at the upper bracket 290, the lens 210 is not individually seated on the locking jaw 270 as shown in FIG. The upper bracket 290 is bolted to the locking jaw 270 after being fixedly fixed by an adhesive or the like, that is, the plurality of lenses 210 are integrally fixed to the upper bracket 290. When it is fixed to the upper surface by the main body 200 is to be mounted on one side of the light receiving hole 250.

Here, the inner diameters of the lens support 290a and the lens fixing tool 290b may be configured to be smaller than the diameter of the lens 210 so that the lens 210 may be smoothly supported and fixed. Do.

The slit panel 230 is configured such that a plurality of slits 230a corresponding to the light receiving holes 250 are fixed at equal intervals as shown in FIGS. 4, 6, and 8.

That is, like the photodetector assembly 70 of the conventional color sorter, the plurality of slits 230a are integrated into one panel without fitting the slits 73 to the plurality of barrels 75 individually. By coupling to the lower surface of the main body 200 is configured to prevent the inconvenience caused by the individual fitting coupling and the error due to the fitting and the micro-error due to external impact.

Here, the mounting of the slit panel 230 is a lower bracket 310 having an opening 310a corresponding to the slit 230a of the slit panel 230, respectively, as shown in FIGS. It is mounted on the other side of the light receiving hole 250 by being fixedly coupled to the lower surface of the main body 200 by bolting. However, the size of the opening 310a is preferably configured to be slightly larger than the size of the slit 230a in consideration of light received diagonally or diagonally.

In addition, as shown in FIGS. 5 and 6, a slit panel capable of recessing the slit panel 230 inwardly on a lower surface of the main body 200 in order to improve coupling force and accuracy of the slit panel 230. A recess 330 may be further provided.

However, in the case where a separate slit panel recess 330 is formed on the lower surface of the main body 200 as shown in FIGS. 5 and 6, the size of the slit panel 230 is also the size of the slit panel recess 330. Of course, it should be reduced compared to the slit panel 230 of FIGS. 3 and 4 to fit. However, the shape and the size of the slit panel 230 and the slit panel inserting portion 330 are mutually dependent, but are not necessarily to be made in the size and shape as shown.

On the other hand, Figure 7 is a perspective view showing an embodiment of the photodetector assembly 700 of the present invention, the color discriminator, in more detail mounted to the lens 210 and the slit panel 230, respectively, the light receiving unit The main body 200 is a view showing a state coupled to the sensor 350, the sensor module 370 and the circuit board 410, which can be referred to as a light detector.

In addition, as shown in the cross-sectional view of Figure 8 can be added to the shock absorbing sponge pad 390 between the lower bracket 310 and the sensor module 370 to prevent shock absorption as well as to prevent disturbance. to be.

The present invention configured as described above provides the following effects.

The barrel and lens mount of the photodetector assembly of the conventional color sorter, that is, the lens and the slit should be respectively provided therein, and the lens mount for holding the barrel are integrated into one main body, and the plurality of light receivers are provided on the main body. A hole is formed so that a lens is mounted at one end of the light receiving hole, and a slit panel having a plurality of slits fixed thereto is mounted at the other side, so that the lens and the slit are individually disposed at a predetermined position inside each barrel in the manufacturing process. This eliminates the inconvenience of having to be fitted together and eliminates the positional error between the slits, and reduces the working time, increases productivity, and reduces manufacturing costs.

In addition, the lens and the slit panel are joined to the upper and lower surfaces of the main body by the upper bracket having a lens support or a lens fixing part and the lower bracket having an opening, so that at least a predetermined external impact is applied in the use step. The position of the lens as well as the slit is always kept constant to provide the effect of maximizing the screening efficiency by reducing the frequency of failure and minimizing the light detection error.

In addition, the present invention is not limited to those described above and illustrated in the drawings, of course, more modifications and variations are possible within the scope of the claims set out below.

Claims (6)

Comprising a main body 200 having a plurality of light receiving holes 250 corresponding to each channel 300 on the chute (400), the lens 210 is mounted on one side of the light receiving hole 250, On the other side, the slit panel 230 is mounted, The slit panel 230, the plurality of slits (230a) corresponding to the light receiving hole 250 is installed in the color detection assembly, characterized in that the fixed intervals. The method of claim 1, The lens 210 is a light detection assembly of the color sorter, characterized in that mounted on the locking step (270) formed at one end of the light receiving hole (250). The method of claim 2, The lens 210 is mounted to the locking jaw 270 by coupling with the upper surface of the main body 200 of the upper bracket 290 having a lens support 290a for receiving and supporting the lens 210. And a color sorter mounted on the latching jaw 270 by coupling with the upper surface of the main body 200 of the upper bracket 290 having the lens fixing tool 290b for accommodating and fixing the lens 210. Photodetection assembly. The method of claim 1, The slit panel 230 is coupled to the other side of the light receiving hole 250 by coupling with a lower surface of the main body 200 of the lower bracket 310 having an opening 310a corresponding to the plurality of slits 230a. A photodetector assembly of color sorter, characterized in that it is mounted. The method of claim 2, The lower surface of the main body 200 is a light detection assembly of the color sorter, characterized in that further provided with a slit panel indentation 330 that can be indented into the slit panel 230. delete

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