JP2001310160A - Apparatus for discriminating plastic and method for discriminating plastic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for discriminating a plastic which can efficiently and surely discriminate the kind of the plastic of an object to be discriminated made of the plastic, and a method for discriminating the plastic. SOLUTION: The apparatus 10 for discriminating the plastic for discriminating the kind of the plastic of the object 260 to be discriminated made of the plastic is provided with a light irradiating part 1,000 for irradiating the object 260 to be discriminated with light, a position changing and setting part 1,200 for determining a discrimination processing reference position 1,300 being good for discrimination on the object 260 to be discriminated by changing the position of the object 260 to be discriminated by making the position of the light irradiated by the light irradiating part 1,000 as a reference, a surface regenerating part 12 for regenerating the surface condition of the discrimination processing reference position 1,300 of the object 260 to be discriminated set by the position changing and setting part 1, 200 and an analyzing part 14 for analyzing and discriminating the kind of the plastic of a part of the object 260 to be discriminated the surface of which is regenerated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic discriminating apparatus and a plastic discriminating method for discriminating the type of plastic of a plastic discriminated object.

[0002]

2. Description of the Related Art In recent years, while the disposal of home appliances, automobiles, and other products using plastics has become a problem, the reuse of materials used for them and the recycling of parts have become major issues. . In order to recycle the plastic material used for each product, the plastic material must be accurately identified and then separated.

[0003]

Devices for discriminating the type of plastic material have been known in the past, but devices which cannot always be discriminated sufficiently and which can specify the flame retardant and the content of the flame retardant in black, for example, are still available. In order to further improve the accuracy of the discrimination, it is necessary to remove the adhering substances adhering to the surface of the plastic. In the case where the operator actually performs the plastic discrimination work, the efficiency of the discrimination work can be improved by preliminarily determining which part of the plastic is a good target part for discriminating the plastic. For this purpose, it is possible to minimize the work of removing paint, removing adhering matter, or removing irregularities by selecting a target site that is good for discriminating plastic stains, paint adhesion, or small irregularities. I want to efficiently determine the type of plastic. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a plastic discriminating apparatus and a plastic discriminating method capable of efficiently and surely discriminating the type of plastic of a plastic discriminated object.

[0004]

The invention of claim 1 is a plastic discriminating apparatus for discriminating the kind of plastic of a plastic discriminated object, and irradiates the discriminated object with light. A light irradiating unit for changing the position of the object to be discriminated based on the position of the light irradiated by the light irradiating unit to determine a reference position for good discrimination processing in the object to be discriminated. A position change setting unit, a surface reproducing unit that reproduces a state of a surface of the discrimination processing reference position of the object to be determined set by the position change setting unit, and a surface reproduction unit that reproduces the surface. An analysis unit that analyzes and determines the type of plastic in the part,
A plastic discriminating device comprising:

According to the first aspect, the light irradiator irradiates the object to be determined with light. The position change setting unit changes the position of the object to be discriminated based on the position of the light irradiated by the light irradiation unit, and determines a reference position for the discrimination process that is favorable for the discrimination in the object to be discriminated. Then, the surface reproducing unit reproduces the surface state of the discrimination target reference position set by the position change setting unit. The analysis unit analyzes and determines the type of plastic in the portion of the discrimination target whose surface is reproduced. Thus, before the surface reproducing unit reproduces the state of the surface of the object to be discriminated, the position change setting unit changes the position of the object to be discriminated, and performs the discrimination processing based on the position of the light from the light irradiation unit. Predetermine the position. When determining the reference position for the discrimination process, it is desirable to set the reference position for the discrimination process while avoiding as much as possible paint, dirt, or irregularities adhering to the object to be discriminated. By doing so, it is possible to determine a portion of the object to be discriminated which is good for discrimination before the surface regenerating section reproduces the surface state. The removal operation can be minimized, and the type of plastic can be determined efficiently. Then, after determining such a good reference position for determination processing, the surface processing unit reproduces the state of the surface of the determination target object. Then, the analysis unit analyzes and determines the type of plastic in the portion of the object to be determined whose surface is reproduced. From this, the type of the plastic of the object to be determined can be efficiently and reliably determined without being hindered by dirt or irregularities such as deposits and paints.

According to a second aspect of the present invention, in the plastic discriminating apparatus according to the first aspect, the light irradiated by the light irradiating section is a spot light. According to the second aspect, the positional relationship of the rotary cutting blade for reproducing the object to be discriminated is directly illuminated with a spot light on the object to be discriminated, so that even if the operator does not see the rotary cutting blade, the position can be determined by the spot light. know.
Therefore, the position where reproduction is most easily performed on the object to be determined can be found by the spot light.

According to a third aspect of the present invention, in the plastic discriminating apparatus according to the first aspect, the position change setting section includes:
And an elevating unit that moves and positions the object to be discriminated. According to the third aspect, the position change setting unit includes an elevating unit that places and moves the positioning of the object to be determined in order to determine the reference processing reference position of the object to be determined.

According to a fourth aspect of the present invention, in the plastic discriminating apparatus according to the second aspect, the light radiated by the light radiating section is radiated to an inner surface of the object to be determined. According to the fourth aspect, the light from the light irradiating unit is radiated on the inner surface side of the object to be determined. Irradiating the light on the inner surface side of the object to be discriminated in this way, when reproducing the outer surface of the object to be discriminated, the position of the rotary cutting blade is not visible depending on the work position of the operator, and where to cut. I have no idea. Therefore, by illuminating the spot light on the inner surface of the object to be distinguished, which is easily seen by the worker, the positional relationship between the object to be distinguished and the rotary cutting blade can be known, and the operator can optimize the object to be distinguished. This is because a suitable reproduction place can be selected.

The invention according to claim 5 is a plastic discriminating method for discriminating the type of plastic of a plastic discriminated object, wherein a light irradiation unit irradiates the discriminated object with light. A light irradiation step, and a position change setting unit changes a position of the object to be discriminated based on a position of the light irradiated by the light irradiation unit, and performs a good discrimination process for discrimination in the object to be discriminated. A discriminating process for determining a reference position, a reference position setting step, and a surface reproducing unit,
A reproduction step of reproducing a surface state of the discrimination processing reference position of the discrimination target set by the position change setting unit; and an analysis unit configured to reproduce the plastic of the part of the discrimination target reproduced on the surface. And a discriminating step of discriminating by analyzing the type of plastic.

According to a fifth aspect of the present invention, the light irradiator irradiates the object to be determined with light. The position change setting unit changes the position of the object to be discriminated based on the position of the light irradiated by the light irradiation unit, and determines a reference position for the discrimination process that is favorable for the discrimination in the object to be discriminated. Then, the surface reproducing unit reproduces the surface state of the discrimination target reference position set by the position change setting unit. The analysis unit analyzes and determines the type of plastic in the portion of the discrimination target whose surface is reproduced. Thus, before the surface reproducing unit reproduces the state of the surface of the object to be discriminated, the position change setting unit changes the position of the object to be discriminated, and performs the discrimination processing based on the position of the light from the light irradiation unit. Predetermine the position. When determining the reference position for the discrimination process, it is desirable to set the reference position for the discrimination process while avoiding as much as possible paint, dirt, or irregularities adhering to the object to be discriminated. By doing so, it is possible to determine a portion of the object to be discriminated which is good for discrimination before the surface regenerating section reproduces the surface state. The removal operation can be minimized, and the type of plastic can be determined efficiently. Then, after determining such a good reference position for determination processing, the surface processing unit reproduces the state of the surface of the determination target object. Then, the analysis unit analyzes and determines the type of plastic in the portion of the object to be determined whose surface is reproduced. From this, the type of the plastic of the object to be determined can be efficiently and reliably determined without being hindered by dirt or irregularities such as deposits and paints.

According to a sixth aspect of the present invention, in the method for determining a plastic according to the fifth aspect, the light irradiated by the light irradiation unit is a spot light.

According to a seventh aspect of the present invention, in the method of determining a plastic according to the fifth aspect, the lifting / lowering portion of the position change setting section moves and positions the object to be determined while placing it thereon.

According to an eighth aspect of the present invention, in the plastic discriminating method according to the sixth aspect, the light irradiated by the light irradiating section is irradiated on an inner surface of the object to be discriminated.

[0014]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the embodiments described below are preferred specific examples of the present invention,
Although various technically preferable limits are given, the scope of the present invention is not limited to these modes unless otherwise specified in the following description.

FIG. 1 shows a preferred embodiment of the plastic discriminating apparatus of the present invention. The plastic discriminating apparatus 10 roughly includes a light irradiation unit 1000, a position change setting unit 1200, a surface reproduction unit 12, an analysis unit 14, and a movement operation unit 20. The plastic discriminating device 10 is a device for efficiently and surely discriminating the type of plastic such as a cabinet 260 made of plastic as shown in FIG.

Before describing the plastic discriminating apparatus 10, the cabinet 260 will be briefly described. The cabinet 260 in FIG. 1 is an object to be discriminated in the plastic discriminating apparatus 10, for example, FIG.
This is a rear cabinet of the television receiver 240 as shown in FIG. The television receiver 240 has a front cabinet 250, a rear cabinet 260, a cathode ray tube C, and the like.

The plastic discriminating apparatus 10 shown in FIG. 1 includes a front cabinet 250 and a rear cabinet 26.
The type of plastic such as 0 can be determined.
FIG. 1 shows an example in which the type of plastic of the rear cabinet 260 is determined as an example.

The light irradiating section 1000 shown in FIG. 1 irradiates light 1100 to a cabinet 260 as an object to be determined. This light 1100 is preferably a spot light. The position change setting unit 1200 in FIG. 1 is for determining a reference position for the discrimination process favorable for discrimination in the cabinet 260 based on the position of the light 1100 irradiated by the light irradiation unit 1000. When this position is determined, the operator can visually check the light 1
The target part of the cabinet 260 is determined with reference to 100. The light irradiation unit 1000 is, for example, a laser light source or a laser diode light source.

The surface reproducing unit 12 shown in FIG.
This is an apparatus for performing a regeneration process (regeneration) of dirt, adhered matter, and uneven portions adhered to the surface 270 of the surface 60. The analyzing unit 14 irradiates the reproducing portion 280 with the light for measurement, for example, infrared rays to the reproducing portion 280 by using the reproducing portion 280 of the surface 270 illustrated in FIG. Has the function of analyzing and discriminating the type of plastic in the reproduction portion 280.

The moving operation unit 20 shown in FIG.
Reference numeral 60 denotes a light irradiation unit 1000, a surface reproduction unit 12, and an analysis unit 14.
Has a function of moving and positioning each of them.
The movement operation unit 20 will be described in more detail. The movement operation unit 20 includes a table 22, a pedestal 24, a base 26, and the like. The table 22 is a portion on which the position change setting unit 1200 for the cabinet 260 as the object to be determined is mounted. Table 22 includes clampers 30 and 2
It has two fixing blocks 32 and a motor 34. The clamper 30 is provided upright on the end 22 </ b> A side of the table 22. The block 32 allows the clamper 30 to rotate in the T direction about the axis 36. The rotation of the clamper 30 in the T direction is performed by operating the motor 34. Clamper 30
Is designed so that the surface 270 of the cabinet 260 is abutted against the block 32 from the inside to be detachably fixed. Thereby, the surface 270 of the cabinet 260
Is abutted against the inner surface of the block 32 and fixed on the table 22. An opening P is formed between the blocks 32.

The table 22 rests on a pedestal 24. The pedestal 24 has a rail 40. The pedestal 24 has a motor 42 and a feed screw 44. When the motor 42 is operated, the feed screw 44 rotates, and the table 22 moves in the X direction along the rail 40 of the pedestal 24 and can be positioned. . The pedestal 24 rests on a base 26. The base 26 includes a rail 50, a motor 52, and a feed screw 5.
Four. When the motor 52 operates and the feed screw 54 rotates, the pedestal 24 moves in the Y direction along the rail 50 and can be positioned. In FIG. 1, the light irradiation unit 1
000, the position change setting unit 1200, the surface reproducing unit 12, the analyzing unit 14, and the motors 34, 42, 52
It operates according to the command from 0.

FIG. 10 shows an example of the light irradiation section 1000 and the position change setting section 1200. FIG. 9 is a front view showing a schematic structure of the light irradiation unit 1000 and the position change setting unit 1200. FIG. 8 is a process diagram including the light irradiation unit 1000 and the position change setting unit 1200.
Are located at the front stage of the surface reproducing unit 12.

As shown in FIG. 9 and FIG.
As the light source 1003, a laser light source or a laser diode light source can be used as described above. Light source 10
As described above, it is desirable that the light generated by 03 is spot light so that the operator can easily determine the position of the cabinet 260. The light 1100 is transmitted through the prism 1120 to the inner surface 260A of the side surface 260A of the cabinet 260.
Irradiation is performed on the B side. That is, light 110
0 is bent 180 ° by the prism 1120,
The light is applied to the inner surface 260B of the cabinet 260. The reason for irradiating the inner surface 260B with the light 1100 in this way is that when reproducing the outer surface of the object to be discriminated, the position of the rotary cutting blade cannot be seen depending on the work position of the operator, and there is a general idea of where to cut. No Therefore, by illuminating the spot light on the inner surface of the object to be distinguished, which is easily seen by the worker, the positional relationship between the object to be distinguished and the rotary cutting blade can be known, and the operator can optimize the object to be distinguished. This is because a suitable reproduction place can be selected.

The position change setting section 1200 is provided on the table 22 as shown in FIG. The position change setting unit 1200 includes a lift 1210 and an actuator 122.
It has 0. The bottom surface of the cabinet 260 is mounted on the lift 1210. The elevating table 1210 can be moved and positioned along the Z direction by the operation of the actuator 1220. The operation of the light source 1003 and the actuator 1220 is performed according to a command from the control unit 100. The light source 1003 is in a state where the positional relationship with the table 22 is maintained.

The elevating table 1210 moves integrally with the table 22, and can be moved and positioned in the X and Y directions. When the lifting table 1210 is moved up and down in the Z direction (vertical direction) by the operation of the actuator 1220, the light 1100 of the light source 1003 is emitted to the inner surface 260B of the cabinet 260 via the prism 1120. With the position of the light 1100 as a reference, the actuator 1220 of the position change setting unit 1200 moves the cabinet 260 up and down in the Z direction. 1300 can be selected. In this way, the reference position 130 for the discrimination process which is good for
When 0 is selected based on the position of the light 1100,
It is desirable for the operator to visually select, as the discrimination processing reference position 1300, a portion where the unevenness of the cabinet 260, adhesion of paint or the like, or other types of dirt is reduced or not. In this way, when the surface treatment unit 12 shown in FIG. 1 performs the surface treatment on the surface 270 of the cabinet 260, the state of the surface corresponding to the discrimination processing reference position 1300 is reproduced, thereby efficiently and reliably. There is a great merit that the state of the surface can be reproduced.

Next, an example of the surface reproducing section 12 in FIG. 1 will be described in more detail. FIG. 3 shows an example of the structure of the surface reproducing unit 12. The surface reproducing unit 12 forms a reproduced portion 280 by cutting the surface 270 of the cabinet 260 of FIG. 1, for example, as shown in FIG. In the example of FIG. 3, a rotary cutting blade 60 having a disk shape is provided, and the rotary cutting blade 60 is continuously rotated in the R direction by a motor 62. The main body 64 has the motor 62 and the rotary cutting blade 60.
Thus, a predetermined stroke can be moved along the X2 direction. As the actuator 66, a hydraulic cylinder, a pneumatic cylinder, or the like can be used. Actuator 6
The operations of the motor 6 and the motor 62 are controlled by the control unit 100. The housing 12A of the surface reproducing unit 12 includes a stopper 1
2B.

FIG. 4 shows an example in which the rotary cutting blade 60 removes a deposit B such as paint stain adhering to the surface 270 of the cabinet 260 by grinding. When the rotary cutting blade 60 rotates in the R direction, the surface 2
70 is removed, and the regenerated portion 28 is added to the surface 270.
0 is formed. FIGS. 3 and 4 show an example in which the surface regeneration unit 12 uses the rotary cutting blade 60. However, the present invention is not limited to this, and other examples as shown in FIGS. 5 and 6 may be employed. .

FIG. 5 shows an example in which a cutting tool 600 is used in place of the rotary cutting blade 60. In this case, when the cutting tool 600 moves in, for example, the Z1 direction, the attached matter B adhering to the surface 270 side is removed, and the reproduction portion 280 is formed on the surface 270. FIG. 6 shows an example in which a reproduction portion 280 is formed by polishing with a sword. By moving the spherical pin tool 700 in the Z direction, the deposit B adhering to the surface 270 is polished and removed, and a reclaimed portion 280 of the surface 270 is formed.

Next, an example of the analyzer 14 in FIG. 1 will be described. The analysis unit 14 has a housing 14A and a stopper 14B. The analysis unit 14 is connected to the monitor device 14C, and the analysis result can be confirmed or printed out by an operator through the monitor device 14C. FIG. 7 illustrates an example of an optical configuration of the analysis unit 14. The analyzer 14 is an example of an infrared spectrometer using mid-infrared light. The analyzer 14 includes an infrared generator 80, a moving mirror 82, a beam splitter 84, mirrors 86 and 88, a detector 90, a mirror 92, and the like. have.
The analysis unit 14 uses the infrared rays 94 such as mid-infrared rays generated from the infrared ray
So-called Fourier interferometer (Fou) for optically discriminating the type of plastic of the reproduction portion 280
rier Interferometer).

Infrared ray 94 generated from infrared ray generating section 80
For example, a wavelength of 2.5 to 25 μm can be adopted. The infrared light 94 is sent by the beam splitter 84 to the movable mirror 82 and the fixed-side mirror 92 separately. Infrared light 96 from the moving mirror 82 and infrared light 98 from the mirror 92 reach the mirror 86. The infrared light reflected by the mirror 86 is emitted as an input beam IB to a reproduction portion 280 of the cabinet 260. This input beam IB
From the reproducing portion 280 to the mirror 88 as the return beam RB.
The return beam RB is reflected by the mirror 88 and is incident on the detector 90. The mirror 86 and the mirror 88 constitute an analysis head (measurement head) 99.

The spectrum waveform obtained by the analysis unit 14 is sent as data to a built-in computer,
By comparing this spectrum waveform with the already registered spectrum waveform, the material of the plastic and the type of the flame retardant are specified. In this way, the type of plastic material of the cabinet 260 shown in FIG. 1 can be determined using the reproduction portion 280. As shown in FIGS. 8 and 1, at the rearmost end of the base 26, a reading device 2000 that reads the determination result of the type of plastic of the cabinet 260 obtained by the analysis in the analyzer 14 next to the analyzer 14. Is provided.

Next, a method of determining plastic will be described with reference to FIGS. 10 to 16 and FIG. First, as shown in the light irradiation step ST1-1 in FIG.
Put the cabinet 260 on the elevator 1210 of
The surface 270 of the cabinet 260 abuts against the inner surface 32 a of the block 32.

Then, light 1100 is emitted from the light source 1003 of FIGS. 9 and 10, and the light 1100 is emitted to the inner surface 260 B of the cabinet 260 via the prism 1120. The operator selects the discrimination processing reference position 1300 on the inner surface 260B of the cabinet 260 based on the position of the light 1100. Next, in the determination process reference position setting step ST1-2 in FIG. 17, the worker moves the elevator 1210 up and down in the Z direction while looking at the position of the light 1100 such as a spotlight, so that the discrimination is good or not. An optimum discrimination processing reference position 1300 of the cabinet 260 is determined.
In other words, at the discrimination processing reference position 1300, a portion where there is no adhesion of paint or other dirt or unevenness on the outer surface 260A of the cabinet 260 is selected based on the position of the light 1100 as much as possible. The above operations are the light irradiation step ST1-1 and the determination processing reference position setting step ST1-2 in FIG.

Next, in the surface regeneration step ST2 of FIG. 17, the motor 34 is operated to operate the clamper 3 of FIG.
0 clamps the inner surface 270A of the cabinet 260. As a result, the cabinet 260 is moved up and down
Is fixed to the blocks 32, 32. After moving the table 22 in FIG. 12 in the X1 direction, the main body 64 of the front surface reproducing unit 12 is moved in the X2 direction. At this time, since the stopper 12B stops the end surface 22A of the table 22, the table 22 does not protrude toward the surface reproducing unit 12, and the main body 64 and the cabinet 260 are not damaged. Then, the motor 62 shown in FIG.
By rotating 0 in the R direction, for example, the deposit B on the surface 270 is removed in the manner shown in FIG.
0 is newly formed.

In step ST3 of the analysis determination step ST0 in FIG. 17, the table 22 moves in the X2 direction and the main body 64 moves in the X1 direction as shown in FIG. Then, the motor 52 shown in FIG. 1 is operated, and the table 22 is moved in the Y1 direction to reach the state shown in FIG. That is, the table 22 and the cabinet 260 face the analysis unit 14. At this time, the opening P of the table 22 is positioned corresponding to the analysis head 99 of the analysis unit 14.

In step ST4 of analysis determination step ST0 in FIG. 17, as shown in FIG.
Moving in one direction, the playback portion 28 of the cabinet 260
0 faces the analysis head 99. At this time, since the stopper 14B stops the end 22A of the table 22, the analysis head 99 does not hit the cabinet 260, so that the analysis head 99 and the cabinet 260 are not broken.

Then, the analysis determination step ST0 of FIG.
In step ST5, the input beam IB shown in FIG. 7 is applied to the reproduction portion 280 of the cabinet 260, and the return beam RB is detected by the detector 90. Thereby, based on the spectrum obtained by the detector 90,
The type of the plastic and the flame retardant is determined by comparing the spectrum already registered in the computer with the spectrum measured from the cabinet 260 as the object to be determined. As described above, the type of the plastic material of the cabinet 260 can be analyzed and determined.

In step ST6 of the analysis determination step ST0 of FIG. 17, the table 22 is stored in the X2 as shown in FIG.
Move the cabinet 260 and the table 22 away from the analysis head 99. At this time, the motor 52 of FIG.
Is released, the cabinet 260 is moved from the table 22
Remove from above. The table 22 corresponds to Y2 in FIG.
11 and return to the state shown in FIG. 11, a cabinet 260 to be newly discriminated is placed on the table 22 and fixed by the clamper 30, and the reproduction portion of the cabinet 260 is again returned in the manner described above. Is formed to determine the type of plastic.

The table 22 of FIG. 1 as described above is provided with the clamper 30 which can be opened and closed by rotating in the T direction about the shaft 36 as shown in FIG. Cabinet 2
60 can be securely fixed to the block 32. Further, by providing the opening P between the blocks 32, 32, regardless of the size of the cabinet 260,
Reproduction portion 28 at surface 270 of cabinet 260
0 can be formed.

In the embodiment of the present invention, when recycling plastic of a product using plastic,
Infrared spectrometer (FTIR: Fourier Tran)
When discriminating the material of the plastic using sport Infrared Rays, the surface of the plastic is subjected to surface regeneration processing by cutting, grinding, polishing or the like in order to prevent the accuracy of the discrimination due to paint, dirt, and unevenness on the plastic surface. A mechanism is provided.

In this case, the light irradiation step ST in FIG.
1-1 and determination processing reference position setting step ST1-2
Before performing the surface treatment step ST2, the discrimination processing reference position 1 which is favorable for discrimination in the cabinet 260
The operator selects 300. As described above, before performing the surface treatment step ST2 and the analysis determination step ST0 in the post-process, the determination reference position 1300 that is favorable for the determination in the cabinet 260 is determined in advance, so that the paint adhered to the cabinet 260, which is a recycled product, It is possible to search for a better site on the surface 260A of the cabinet 260 and to determine the surface processing position and the analysis determination position while avoiding dirt, other attached matter, or uneven portions as much as possible. Therefore, in the plastic discriminating step of performing the surface treatment and the analysis discriminating process, there is a great merit that the work efficiency can be improved and the discriminating work can be reliably performed.

According to the plastic discriminating apparatus and the discriminating method of the present invention, it is possible to discriminate, for example, a black plastic material and to specify the type of the flame retardant contained in the plastic material with a probability of, for example, 99% or more.

By fixing the plastic article, which is the object to be measured, the analysis point of the plastic article is determined, so that the operations from the surface regeneration treatment to the analysis can be performed on the same basis, so that the operation of discriminating the plastic material can be performed very efficiently. The plastic discriminating apparatus of the present invention can specify the type and content of the flame retardant contained in plastic. Since the flame retardant contained in plastic can be specified, very dangerous work such as "the worker himself burns the plastic and smells to judge the presence or absence of the flame retardant", which is a conventional determination method, is eliminated. . A plastic recycling business can be conducted without plastic expertise.

The present invention is not limited to the above embodiment. FIG. 18 shows another embodiment of the present invention, and FIG. 18 shows another embodiment of the light irradiation section 1000. As is clear from comparison with the light irradiation unit 1000 in FIG. 8, the light source 1 of the light irradiation unit 1000 in FIG.
Reference numeral 003 is disposed obliquely in front of the cabinet 260. Light 110 generated from the light irradiation unit 1000
0 is applied to the inner surface 260B of the cabinet 260 from an obliquely forward direction.
300 is set.

In the above-described embodiment, an example of a television receiver or a cabinet of a display device of a computer is described as an object to be determined. However, the present invention is not limited to this, and it goes without saying that the plastic discriminating apparatus of the present invention can be applied to discriminating the type of plastic of plastic parts or members of other electronic devices or devices in other fields. Also, the analysis unit may be, for example, a mid-infrared (Mi
Other than determining the type of plastic using dIR), infrared light of another wavelength or light of another wavelength may be used.

Position change setting section 12 in FIGS. 9 and 10
At 00, the cabinet 260 is moved and positioned in the Z direction by moving the elevator 1210 in the Z direction. However, the present invention is not limited to this, and the elevating platform 1210 of the position change setting unit 1200 may be configured as shown in FIG.
At 0, a moving table that moves in the Y direction, for example, may be used instead of the lifting table.

[0047]

As described above, according to the present invention,
It is possible to efficiently and reliably determine the type of plastic of the plastic object to be determined.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a preferred embodiment of a plastic discriminating apparatus of the present invention.

FIG. 2 is an exploded perspective view of a television receiver including an object to be determined which is determined by the plastic determining apparatus of FIG. 1;

FIG. 3 is a perspective view showing a configuration example of a surface reproducing unit in FIG. 1;

FIG. 4 is a diagram showing an example in which a regenerated portion is formed by a rotary cutting blade of the regenerated surface portion in FIG. 3;

FIG. 5 is a diagram showing an example in which a reproduction portion is formed using a cutting tool instead of a rotary cutting blade.

FIG. 6 is a diagram showing an example in which a reproduction portion is formed by squeezing using a tool with a spherical pin.

FIG. 7 is a diagram illustrating an example of an optical system of an analysis unit.

FIG. 8 is a plan view showing the entire configuration of a plastic discriminating apparatus.

FIG. 9 is a front view showing a light irradiation unit, a position change setting unit, and the like.

FIG. 10 is a perspective view showing a light irradiation unit, a position change setting unit, and the like.

FIG. 11 is a diagram showing an initial state in a plastic discriminating step.

FIG. 12 is a diagram showing a state in which the main body of the surface reproducing unit approaches the cabinet.

FIG. 13 is a diagram showing a state after a reproduction portion is formed on the surface of the cabinet.

FIG. 14 is a diagram showing a state in which the table and the cabinet have moved to the analysis unit side.

FIG. 15 is a diagram illustrating a state in which a reproduction portion is close to or in contact with an analysis head of the analysis unit.

FIG. 16 is a view showing a state where a table and a cabinet are separated after analysis.

FIG. 17 is a flowchart showing an example of a plastic discrimination method.

FIG. 18 is a view showing another embodiment of the light irradiation section of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Plastic discrimination device, 12 ... Surface reproduction | regeneration part, 14 ... Analysis part, 20 ... Movement operation part, 22
... Table, 30 ... Clamper, 260 ...
Cabinet (object to be determined), 270: Surface of cabinet, 280: Reproduction part of cabinet, 1
000: Light irradiation unit, 1200: Position change setting unit, 1210: Elevating platform, 1300: Reference processing reference position, P: Opening

Claims (8)

[Claims] 1. A plastic discriminating device for discriminating the type of plastic of a plastic object to be discriminated, comprising: a light irradiating unit that irradiates light to the object to be discriminated; A position change setting unit for changing the position of the object to be discriminated based on the position of the emitted light as a reference to determine a reference position for the discrimination processing that is favorable for the discrimination in the object to be discriminated; A surface reproducing unit that reproduces a state of the surface of the discrimination target object set at the discrimination processing reference position, and a type of plastic of the part of the discrimination target whose surface is reproduced is determined by analysis. An analyzer, comprising: an analyzing unit. 2. The plastic discriminating apparatus according to claim 1, wherein the light irradiated by the light irradiation unit is a spot light. 3. The plastic discriminating apparatus according to claim 1, wherein the position change setting unit includes a lifting unit configured to move and position the discriminated object on the disc. 4. The plastic discriminating apparatus according to claim 2, wherein the light radiated by the light radiating section is radiated to an inner surface of the object to be discriminated. 5. A plastic discriminating method for discriminating the type of plastic of a plastic discriminated object, wherein a light irradiation unit irradiates the discriminated object with light. The position change setting unit changes the position of the object to be determined based on the position of the light irradiated by the light irradiating unit and determines a reference position for the determination process that is favorable for the determination of the object to be determined. A processing reference position setting step, a reproduction step of reproducing the state of the surface of the discrimination processing reference position of the object to be discriminated set by the position change setting section, and an analysis section, A discriminating step of analyzing and discriminating the type of plastic of the reproduced part of the discriminated object. 6. The method according to claim 5, wherein the light irradiated by the light irradiation unit is a spot light. 7. The plastic discriminating method according to claim 5, wherein the lifting and lowering section of the position change setting section places and moves the object to be discriminated to position the object. 8. The plastic discriminating method according to claim 6, wherein the light radiated by the light radiating section is radiated to an inner surface of the object to be discriminated.