JP2001356090A - Infrared spectrometer calibration device and infrared spectrometer calibration method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a calibration device for an infrared spectrometer and a method for calibrating an infrared spectrometer which can accurately and easily perform calibration of an infrared spectrometer when discriminating a type of plastic. thing. SOLUTION: In a state where an infrared spectroscopy device 14 is disposed in a protector 4000 that maintains a certain atmosphere, an object 260 to be discriminated is irradiated with infrared rays and reflected light thereof is received to accurately determine the type of plastic. A calibrating device 5060 for calibrating the infrared spectroscopy device 14 for analysis, and a mounting unit 5030 for mounting the object 260 to be determined.
And the infrared irradiator 5 of the infrared spectroscope 14 in the protector 4000
A calibration unit 5000 that is in close contact with the infrared spectroscopy 020 and reflects infrared light from the infrared irradiation unit 5020 and returns the infrared light to the infrared spectroscopic device 14 side.

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 for discriminating the type of plastic of a discriminated object, and an infrared spectroscopy device provided in a protector that maintains a constant atmosphere. The present invention relates to a calibration device for calibrating an infrared spectrometer for accurately analyzing the type of plastic by irradiating infrared rays to the device and receiving reflected light thereof, and a calibration method for the infrared spectrometer.

[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 order to perform such plastic discrimination, the present inventor has proposed a plastic discriminating apparatus for discriminating the type of plastic of a discriminated object. This discriminating device is equipped with an infrared spectrometer, and the infrared spectrometer is placed in a protector that keeps a certain atmosphere. Is to accurately analyze the types.

Incidentally, this type of infrared spectrometer (FTI)
R), the calibration method (also referred to as a calibration method or a verification method) includes, for example, a change in ambient temperature or an atmospheric pressure / pressure.
Because it is very sensitive to changes in temperature, the infrared spectrometer must be kept under a constant dehumidified atmosphere that is not affected by external temperature or humidity. For this reason, the infrared spectrometer needs to be housed in a protector for maintaining such a constant atmosphere. That is, the infrared spectroscopy (FTIR) detects the temperature change /
Sensitive to changes due to humidity changes / micro-vibrations, which greatly hinders analysis results. Therefore, the infrared spectrometer usually requires an installation place such as to be placed in a room under a constant temperature and constant humidity environment and on a table made of a large mass. However, in a place where a recycling business is carried out (recycling plant), the environment is generally the same as the outside temperature, and therefore, a plastic discriminating device incorporating an infrared spectroscopic device must be installed in a specially air-conditioned room. This limits the work layout and increases capital investment.

When calibrating an infrared spectrometer, for example, in order to directly fix a mirror device on which gold is deposited on the infrared spectrometer, every time the infrared spectrometer is calibrated, the infrared spectrometer is connected to a protector. You need to open the door and take it out of the protector. For this reason, the infrared spectrometer is affected by the high temperature and humidity of the external environment, and it is necessary to take out the infrared spectrometer from the protector every time calibration is performed. This may affect the reliability of the plastic type determination by infrared spectroscopy. Therefore, the present invention solves the above-mentioned problems, and provides a calibration device for an infrared spectrometer and a method for calibrating an infrared spectrometer, which can accurately and easily perform calibration of the infrared spectrometer when determining the type of plastic. It is intended to be.

[0006]

According to a first aspect of the present invention, there is provided an infrared spectrometer provided in a plastic discriminating apparatus for discriminating the type of plastic of an object to be discriminated. In a state where the infrared spectroscopy apparatus is calibrated to accurately analyze the type of the plastic by irradiating the object to be discriminated with infrared rays and receiving the reflected light while being placed in the protector for keeping A calibration device, a mounting portion for mounting the object to be discriminated, and removably disposed on the mounting portion, and closely attached to the infrared irradiating portion of the infrared spectroscopic device in the protector, from the infrared irradiating portion. A calibration unit that reflects infrared light and returns it to the infrared spectrometer side.

According to the first aspect, a calibration unit is removably disposed on a mounting portion for mounting an object to be determined. This calibration unit is in close contact with the infrared irradiator of the infrared spectrometer in the protector and reflects infrared rays from the infrared irradiator. This allows the calibration unit to reflect the infrared light from the infrared irradiator and return the infrared light to the infrared spectrometer while the infrared spectrometer is housed in the protector without being taken out of the protector. Since the infrared spectrometer is thus housed in the protector, the infrared spectrometer can accurately and easily perform calibration in a certain atmosphere.

According to a second aspect of the present invention, in the calibration apparatus for an infrared spectrometer according to the first aspect, the calibration unit includes a main body, a gold vapor deposition mirror that reflects infrared rays from the infrared irradiation section, and the main body. And a holding unit movably disposed in the holding unit, for holding the gold vapor deposition mirror, and when the infrared irradiating unit of the infrared spectroscopy device is brought into close contact with the gold vapor deposition mirror, the holding unit is used to ensure adhesion. And a biasing member disposed between the main body and receiving the movement of the holding portion. According to the second aspect, when the infrared irradiating section of the infrared spectroscopy device is brought into close contact with the gold vapor deposition mirror, the urging member is subjected to a moving operation of the holding section in order to ensure close contact. This not only ensures the adhesion between the infrared irradiator and the gold-deposited mirror, but also alleviates the shock applied to the gold-deposited mirror and reduces the dimensional and setting errors of the infrared irradiator and the gold-deposited mirror. Can be absorbed.

According to a third aspect of the present invention, in the calibration apparatus for an infrared spectrometer according to the second aspect, the main body is mounted on the mounting portion in a state where the gold vapor deposition mirror is disposed in an opening of the mounting portion. It has a flange part for fixing to. According to the third aspect, the flange portion of the main body is fixed to the mounting portion.

According to a fourth aspect of the present invention, in the calibration device for an infrared spectrometer according to the third aspect, the mounting portion has a clamp for detachably clamping the main body with respect to the mounting portion. According to the fourth aspect, the clamp of the mounting portion can detachably clamp the main body.

According to a fifth aspect of the present invention, in the infrared spectrometer calibration apparatus according to the third aspect, the main body is detachably fixed to the mounting portion with a screw. Claim 5
Then, the main body can be detachably fixed to the mounting portion by screws.

According to a sixth aspect of the present invention, in the calibration apparatus for an infrared spectrometer according to the first aspect, the protector comprises:
It has a space with a closed structure for accommodating the infrared spectroscopy device, and air for controlling temperature and humidity is supplied to the space. According to the sixth aspect, the infrared spectroscopy device housed in the space of the protector can be installed at a site where plastics are determined without being affected by external temperature or humidity.

According to a seventh aspect of the present invention, in the calibration apparatus for an infrared spectrometer according to the sixth aspect, the protector comprises:
There is a slide device for mounting the infrared spectrometer and taking it out of the space. According to the seventh aspect, the infrared spectrometer can be taken out of the space of the protector as needed.

The invention according to claim 8 is an infrared spectrometer provided in a plastic discriminating device for discriminating the type of plastic of the object to be discriminated, wherein the infrared spectrometer is disposed in a protector that maintains a constant atmosphere. In the state of being, a calibration method for calibrating the infrared spectrometer to accurately analyze the type of the plastic by irradiating the object to be determined with infrared rays and receiving reflected light thereof, An arrangement step of arranging a calibration unit that reflects infrared rays from the infrared irradiating section of the infrared spectroscope in the protector in the mounting section for mounting the object to be determined, and the arrangement section arranged in the mounting section. The calibration unit is in close contact with the infrared irradiator of the infrared spectrometer, and reflects infrared light from the infrared irradiator to the infrared spectrometer. And it is calibrated steps, a method for calibrating an infrared spectrometer, which comprises a.

According to the present invention, in the disposing step, a calibrating unit that reflects infrared rays from an infrared irradiating unit of the infrared spectroscope in the protector is disposed on the mounting unit. Then, in the calibration step, the calibration unit arranged on the mounting portion is brought into close contact with the infrared irradiating portion of the infrared spectroscopy device, and reflects infrared rays from the infrared irradiating portion to return to the infrared spectroscopy device side. . This allows the calibration unit to reflect the infrared light from the infrared irradiator and return the infrared light to the infrared spectrometer while the infrared spectrometer is housed in the protector without being taken out of the protector. Since the infrared spectrometer is thus housed in the protector, the infrared spectrometer can accurately and easily perform calibration in a certain atmosphere.

According to a ninth aspect of the present invention, in the method for calibrating an infrared spectrometer according to the eighth aspect, the gold vapor deposition mirror of the calibration unit reflects the infrared rays from the infrared irradiating section to the infrared spectroscopy apparatus. return. According to the ninth aspect, the gold deposition mirror of the calibration unit reflects the infrared rays from the infrared irradiation unit and returns the infrared rays to the infrared spectroscope. By using a gold vapor-deposited mirror, the reflectance is best for mid-infrared rays.

According to a tenth aspect of the present invention, in the method for calibrating an infrared spectrometer according to the seventh aspect, when the gold deposition mirror of the calibration unit is brought into close contact with the infrared irradiating unit, The gold vapor deposition mirror is urged toward the infrared irradiator to secure the adhesion between the gold vapor deposition mirror and the gold vapor deposition mirror. In claim 10, when the gold deposition mirror of the calibration unit is brought into close contact with the infrared irradiation unit, the gold deposition mirror is urged toward the infrared irradiation unit in order to ensure the adhesion between the infrared irradiation unit and the gold deposition mirror. Have been. As a result, the adhesion between the infrared irradiating unit and the gold-deposited mirror can be ensured, the shock applied to the gold-deposited mirror is reduced, and the dimensional error and the positioning error of the infrared irradiating unit and the gold-deposited mirror are absorbed. be able to.

[0018]

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

FIG. 1 shows an embodiment of the plastic discriminating apparatus of the present invention. This plastic discriminating apparatus has a preferred embodiment of the calibration apparatus for an infrared spectrometer of the present invention. Plastic discrimination device 10
Schematically shows the light irradiation unit 1000 and the position change setting unit 12
The apparatus includes a playback device 12, an infrared spectroscopy device 14, and a movement operation unit 20 for determining a plastic discrimination target.
The plastic discriminating device 10 is a device for efficiently and reliably discriminating the type of plastic, for example, a cabinet 260 made of plastic as shown in FIG. 1 by irradiating light.

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 applies a light 1 to a discrimination target portion of the cabinet 260 which is a discrimination target object.
100 is irradiated. This light 1100 is preferably a spot light. The position change setting unit 120 of FIG.
0 sets a reference position for the discrimination process excellent in the 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, an operator visually determines the cabinet 260 based on the light 1100 illuminating the cabinet 260.
Is determined by looking at the region to be determined. The light irradiation unit 1000 is, for example, a laser light source or a laser diode light source.

The plastic discrimination target reproducing apparatus 12 shown in FIG. 1 removes paint and other types of dirt, adhered substances, or irregularities adhered to the surface 270 of the cabinet 260, and performs heating and pressurization. This is an apparatus for improving the light reflectance by regenerating the surface of the determination target portion. An infrared spectrometer (also referred to as an analysis unit) 14 in FIG. 1 is a reproduction portion (corresponding to a discrimination target portion) 280 of the surface 270 illustrated in FIG.
By using this playback part (corresponding to the part to be discriminated)
It has a function of analyzing and discriminating the type of plastic in the reproduction portion (determination target portion) 280 by irradiating infrared light for measurement to the 280 and obtaining its return light (reflected light).

The moving operation unit 20 shown in FIG.
It has a function of moving and positioning the light source 60 to the respective positions of the light irradiating part 1000, the reproduction device 12 of the plastic discrimination target portion, and the infrared spectroscopy device 14. The movement operation unit 20 will be described in more detail. Movement operation unit 2
0 has 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. The table 22 has a clamper 30, 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. The clamper 30 blocks the surface 270 of the cabinet 260
And is detachably fixed. As a result, the surface 270 of the cabinet 260 abuts on the inner surface side of the block 32 while being placed on the table 22 and is fixed. Block 32 and Block 3
An opening P is formed between the two.

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 playback device 12, the infrared spectroscopy device 14, and the motors 34, 42, 52 of the plastic discrimination target part operate according to instructions from the control unit 100.

FIGS. 9 and 10 show an example of the light irradiation unit 1000 and the position change setting unit 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.
Reference numeral 00 denotes a portion of the plastic discrimination target portion, which is located at the front stage of the reproducing device 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 a spotlight on the inner surface of the object to be distinguished, which is easily seen by the worker, it is possible to know the positional relationship between the object to be distinguished and the rotary cutting blade. 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 also 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 plastic discriminating target portion reproducing apparatus 12 shown in FIG. 1 performs the surface treatment of the front surface 270 of the cabinet 260, the surface state corresponding to the discriminating process reference position 1300 is reproduced. There is a great merit that the state of the surface can be efficiently and reliably reproduced.

Next, an example of the reproducing apparatus 12 for the portion to be discriminated from plastic shown in FIG. 1 will be described in more detail. FIG.
Shows an example of the structure of the reproducing device 12 at the portion to be discriminated from plastic. The playback device 12 of the plastic discrimination target portion in FIG. 3 includes a main body 12A, a machined portion 12M,
It has a heating / pressing unit 2500 and a stopper 12B. The machined portion 12M cuts the surface of the reproduction portion 280, which is the portion to be discriminated, to improve the surface state, thereby removing paint or other types of dirt, adhered matter, or irregularities on the plastic surface. The removal is performed to prevent a decrease in the discrimination accuracy due to light irradiation. In addition, if the surface roughness of the part to be discriminated from the plastic shaved by the mechanical processing unit 12M is large, the heating / pressing unit 2500 reduces the light reflectance, and thus improves the reduction in the light reflectance. For the purpose, the surface of the discrimination target portion is instantaneously heated and softened, and the surface is flattened by pressing. This improves the light reflectance when the surface of the determination target portion is irradiated with light.

The machined portion 12M is configured to form a reproduction portion (determination target portion) 280 by cutting the surface 270 of the cabinet 260 shown in FIG. 1, for example, as shown in FIG. In the example of FIG. 3, a rotary cutting blade 60 of a disk type is provided.
2 continuously rotates in the R direction. The main body 64 in FIG. 3 has the motor 62 and the rotary cutting blade 60, and the main body 64 can be moved by a predetermined stroke in the X2 direction by an actuator 66. As the actuator 66, a hydraulic cylinder, a pneumatic cylinder, or the like can be used.
The operations of the actuator 66 and the motor 62 are controlled by the control unit 100. The housing 12A of the playback device 12 at the portion to be discriminated from plastic has a stopper 12B.

FIG. 4 shows an example in which the rotary cutting blade 60 removes deposits B such as paint and other types of dirt adhering to the surface 270 of the cabinet 260 by cutting. By rotating the rotary cutting blade 60 in the R direction, the deposit B on the surface 270 is removed, and the surface 270 is removed.
Then, a reproduction portion 280 is formed. In FIGS. 3 and 4, the regenerating device 12 for the plastic discrimination target portion includes 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.

The heating / pressing unit 2500 shown in FIG. 3 is used in a method as shown in FIG. 15, and has a sectional structure as shown in FIG. The heating / pressing unit 2500 in FIG. 18 is also called a hot press header unit or the like, and includes a header 250
1, cartridge heater 2503, holder 2505,
Base 2507, thermal insulator 2509, bolt 2510, thermocouple 2513 as temperature sensor, and lead 251
5,2517. Base 2507 is bolt 2
519 is fixed to the main body 12A side of FIG. The holder 2505 is detachably fixed to the base 2507 by bolts 2510. Holder 2505
Holds a cartridge heater 2503, a header 2501 and a thermocouple 2513. For example, a cylindrical cartridge heater 2503 passes through a center hole 2521 of the cylindrical holder 2505.

One end of the cartridge heater 2503 is connected to a lead wire 2517. From the middle portion of the cartridge heater 2503 to the other end, a header 2
501 has entered the hole 2523. Header 2
Reference numeral 501 denotes a columnar member. A thermocouple 2513 is inserted into another hole 2525 of the header 2501.
Thermocouple 2513 is connected to lead wire 2515. The lead 2515 and the lead 2517 are connected to the control unit 1
00 is connected.

The cartridge heater 2503 heats the header 2501 when the control unit 100 supplies power through the lead wire 2517. The temperature of the header 2501 at that time is detected by the thermocouple 2513, so that the
For 0, the temperature information of the header 2501 is transmitted. The control unit 100 changes the amount of current supplied to the cartridge heater 2503 based on the temperature information, thereby controlling the header 2.
The heating temperature of 501 can be kept, for example, between 100 ° C and 180 ° C. As shown in FIG.
The front end portion 2531 of the first device is a flat surface, and the front end portion 2531 is brought into contact with a reproduction portion 280 which is a portion to be determined as shown in FIG.

Next, an example of the infrared spectrometer 14 of FIG. 1 will be described. The infrared spectroscopy device 14 has a housing 14A and a stopper 14B. The infrared spectroscopy device 14
The analysis result is connected to the monitor device 14C, and the operator can confirm or print out the analysis result through the monitor device 14C. FIG. 7 shows an optical configuration example of the infrared spectroscopy device 14. The infrared spectroscopy device 14 is an example of an infrared spectroscopy device that uses mid-infrared rays as an example.
0, moving mirror 82, beam splitter 84, mirror 8
6, 88, a detector 90, a mirror 92, and the like. The infrared spectrometer 14 uses a so-called Fourier Interferometer that optically determines the type of plastic of the reproducing portion 280 of the cabinet 260 using infrared rays 94 such as mid-infrared rays generated from the infrared ray generating section 80. ).

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 infrared spectrometer 14 is sent as data to a built-in computer, and the spectrum waveform is compared with the already registered spectrum waveform to check the plastic material and the flame retardant. Specify the type. By doing so, the reproduction portion 280
Can be used to determine the type of plastic material of the cabinet 260 in FIG. The infrared spectroscopic device 14 having such a configuration is housed in the protector 4000 as shown in FIGS. This protector 4000 is a kind of so-called container for keeping the infrared spectrometer 14 in a constant dehumidified atmosphere that is not affected by external temperature or humidity. The reason why the infrared spectroscope 14 is housed in the protector 4000 is that, for example, KBr (potassium bromide) used in the beam splitter 84 shown in FIG. Because it is very sensitive to humidity, and between the optical paths of infrared rays, there is a possibility that the temperature and pressure changes may cause slight fluctuations, and the analytical ability of plastics by infrared spectroscopy may decrease. .

FIGS. 20 and 21 show the protector 4000.
2 shows an example of the structure. In the protector 4000, the infrared spectrometer 14 is housed. As shown in FIG. 20, the infrared spectroscopy device 14 can be taken out of the protector 4000 by sliding it out of the protector 4000 along the direction E as shown in FIG. On the front side of the protector 4000, a front cover 4003 having a hole 4040 through which an analysis head (measurement head) 99 is exposed is provided. Monitor device 1 on protector 4000
4C, a central processing unit 4004 is housed in the lower part of the protector 4000.

20 and 21, a front cover 4003 and a side cover 6004 are provided around a space 6002 for accommodating the infrared spectroscopy device 14, and a slide is provided on the rear surface so that the infrared spectroscopy device 14 can be independently maintained. An opening / closing door 6006 is provided so that the door can be pulled out of the storage space 6002 by the device 4001. The storage space 6008 is a space for storing the central processing unit 4004, and the storage space 6008 and the space 6002 are separated by an intermediate plate 6009. The storage space 6002 is provided with a dry air injection port 6010 from the upper side, and dry air or air whose temperature and humidity are controlled is injected from the injection port 6010.

The front cover 4003 has an infrared spectrometer 1
In order to take out the analysis head (measurement head) 99 of 4 to the outside,
Hole 4040 is open. Even if the hole 4040 is open, the pressure inside the storage space 6002 is in a pressurized state due to the closed structure, and is not affected by dust or temperature and humidity from outside. Also, depending on the hermetically closed state, the infrared spectroscopy device 14 can be pulled out to the rear of the storage space 6002 by opening the opening / closing door 6006 on the rear surface and using the slide device 4001 to facilitate independent maintenance.

As a countermeasure against micro-vibration, an elastic foam 4013 (for example, neoprene (registered trademark) rubber / thickness 10 mm / hardness 60) is inserted between the infrared spectroscopy device 14 and the slide device 4001 as a cushioning material. I have. In order to maintain the mutual position between the sliding device 4001 and the infrared spectroscopic device 14, the elastic foam 4013 has the outer dimensions 4014 of the elastic foam 4013 and the leg portions 4015 of the infrared spectroscopic device 14 set to specified dimensions. It has become. Also, as shown in FIG.
Is maintained in a positional relationship with the surface of the block 32 of the table 22 to which the cabinet 260 is fixed.

As shown in FIGS. 8 and 1, at the rearmost end of the base 26, next to the infrared spectroscope 14, the result of the discrimination of the plastic type of the cabinet 260 obtained by the analysis by the infrared spectroscope 14 is shown. Is provided.

FIGS. 22 and 23 show a preferred embodiment of the calibration unit of the calibration device for the infrared spectrometer 14 shown in FIGS. 20 and 21. As shown in FIG. 24, the calibration device 5060 has a calibration unit 5000 and a mounting unit 5030. The calibration unit 5000 shown in FIGS. 22 and 23 has a main body 5014, a gold vapor deposition mirror device 5002, a holding portion 5013, a coil spring 5015 as an urging member, and the like. The main body 5014 has a ring-shaped flange portion 5017. Body 50
14 houses a holding portion 5013 and a coil spring 5015. Coil spring 5015
Is disposed between the portion 5018 of the main body 5014 and the flange portion 5013A of the holding portion 5013. Holder 501
A gold vapor deposition mirror device 5002 is fixed to one end side of 3 using a screw 5089.

In FIG. 22, a gold vapor deposition mirror device 5002
When the gold vapor deposition mirror device 5002 is brought into close contact with the analysis head 99 of the infrared irradiation unit 5020 as shown in FIG.
When the coil spring 50 is pushed in the direction G shown in FIG.
Numeral 15 indicates that the gold vapor deposition mirror device 5002 and the holding portion 5013 can be moved in the F direction with elastic force. By providing the coil spring 5015 in this manner, the adhesion between the analysis head 99 and the gold vapor deposition mirror device 5002 shown in FIG. 24 is improved, and the shock applied to the gold vapor deposition mirror device 5002 in the G direction is absorbed. be able to. Further, the provision of the coil spring 5015 can absorb a dimensional error and a position error between the analysis head 99 and the gold vapor deposition mirror device 5002.

24 includes an analysis head 99 and a detector 90 as shown in FIG. As shown in FIG. 24, the flange portion 5017 shown in FIGS.
This is a part for abutting and fixing against a. As described above, the calibration unit 5 using the flange portion 5017 is used.
In a state where 000 is fixed to the blocks 32, 32, the gold deposition mirror device 5002 is located in the opening P. The table 22 and the lift 1210 constitute a mounting unit 5030 for mounting the calibration unit 5000 instead of mounting the cabinet 260 shown in FIG.

On the other hand, the protector 40 of the infrared spectroscopy
No. 00 has a small hole (opening) 4040 at a position corresponding to the analysis head 99 of the infrared irradiation unit 5020.
The analysis head 99 is located in the hole 4040. The hole 4040 has a size as long as the analysis head 99 can be exposed to the outside. Even if the hole 4040 is provided, a certain atmosphere in the protector 4000 can be maintained.

Next, an example of a method for calibrating an infrared spectrometer will be described with reference to FIG. In the arrangement step S1 shown in FIG. 25, the calibration unit 5000 is arranged on the mounting section 5030 in FIG. This mounting part 5030
And the calibration unit 5000 constitute a calibration device 5060. Flange part 5 of unit 5000 for calibration
177 is held by the clamper 30, so that the flange portion 5017 becomes the inner portion 32 a of the block 32.
Hit against. In this state, the gold vapor deposition mirror device 5002 protrudes from the opening P of the block 32. By moving the table 22 in the X1 direction, the gold deposition mirror device 5002 comes into close contact with the analysis head 99 of the infrared irradiation unit 5020. At this time, the gold evaporation mirror device 5002
May be subject to force from the analysis head 99, FIG.
2 can absorb the force in the G direction by the coil spring 5015 via the holding portion 5013. Therefore, the gold deposition mirror device 500
2 can be mitigated to prevent damage to the gold vapor deposition mirror device 5002. The analysis head 9 shown in FIG.
The presence of the coil spring 5015 can also absorb the dimensional errors and positional errors of the mirror 9 and the gold vapor deposition mirror device 5002.

Next, the process proceeds to the calibration step S2 in FIG.
In the calibration step S2, while the calibration unit 5000 is in close contact with the analysis head 99, the infrared input beam IB emitted from the analysis head 99 shown in FIG. 7, and returns to the detector 90 via the mirror 88. This allows the detector 90
Can perform calibration or verification of the infrared ray 94 generated by the infrared ray generating section 80 in FIG. That is, for the purpose of measuring the initial state of the infrared spectrometer, the factors caused by changes in temperature and pressure are corrected. The reason why the gold vapor deposition mirror device 5002 is used in this way is that the reflectance is the best for mid-infrared rays.

As described above, the calibration of the infrared spectrometer 14 is performed by the calibration unit 5 mounted on the mounting unit 5030.
000, the infrared spectroscopy device 14
It is possible to perform the operation accurately in a state of being stored in 00. Since the infrared spectroscopy device 14 is housed in the protector 4000, it is possible to accurately calibrate the infrared spectroscopy device for infrared emission under a constant dehumidified atmosphere that is not affected by external temperature or humidity unlike the related art. You can do it. Therefore, when the infrared spectrometer is calibrated, it is not affected by the temperature and humidity even under a humid use condition, so that the infrared spectrometer can be operated accurately at any time. When the calibration work is completed, the determination step S3 in FIG.
In FIG. 19, the determination operation shown in FIG. 19 is performed. The method of calibrating the infrared spectrometer as described above may be performed before performing the method of determining plastic shown in FIG. 19, or may be performed as needed during the determination of plastic.

Next, another embodiment of the present invention will be described with reference to FIGS. 26 and 27. The calibrating unit 5000 and the mounting unit 5030 of FIGS.
070. The flange portion 5017 of the calibration unit 5000 is connected to the block 32 as shown in FIG.
Is removably fixed to the outer portion 32d of the second member using, for example, a screw 5090. The other elements of the calibration unit 5000 of FIGS. 26 and 27 are shown in FIGS.
Since it is the same as the calibration unit 5000 of FIG. 24, its description will be used.

Next, with reference to FIGS. 11 to 17 and FIG. 19, a description will be given of a method of regenerating a plastic discrimination target portion and a method of discriminating the type of plastic. First, FIG.
As shown in the light irradiation step ST1-1, the cabinet 260 is placed on the elevator 1210 in FIG.
hit a. Then, the light source 1003 shown in FIGS.
Irradiates light 1100 to the inner surface 260B of the cabinet 260 through 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 reference processing reference position setting step ST1-1 in FIG. 19, the worker moves the elevating platform 1210 up and down in the Z direction while looking at the position of the light 1100 such as a spot light. The determination processing reference position 1300 of the cabinet 260 that is good or optimal is determined. In other words, at the discrimination processing reference position 1300, a portion of the outer surface 260A of the cabinet 260 where there is no paint or other types of dirt, deposits, or irregularities is light 1100 as much as possible.
The position is selected as a reference. The above work,
This is a light irradiation step ST1-1 and a determination processing reference position setting step ST1-2 in FIG.

The surface regeneration step ST2 in FIG. 19 includes a machining step ST2-2 and a heating / pressing step ST2-
Contains 2. In the machining step ST2-1, the surface of the reproduction portion 280, which is the determination target portion, is scraped to improve the surface condition, so that paint or other types of dirt, deposits, or irregularities adhered to the plastic surface. Parts are immediately removed mechanically. This prevents the accuracy of discriminating the type of plastic from being reduced when the reproducing portion 280 is irradiated with infrared rays. In the heating and pressurizing step ST2-2, unevenness (surface roughness) due to machining may occur in the reproduced portion 280 machined in the machining step ST2-1. Since the irregularities due to the mechanical processing cause a decrease in the reflectivity of infrared rays, in order to prevent the reflectivity of infrared rays from decreasing, the reproducing portion 2 is formed by using the heating / pressing section 2500.
The surface of 80 is instantaneously softened and flattened by pressing under pressure. Thereby, the reflectance of the infrared ray when the infrared ray is irradiated is improved.

Next, in the surface regeneration step ST2 of FIG. 19, 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
It is fixed to the blocks 32, 32 on 0. FIG.
After moving the table 22 in the X1 direction, the main body 64 of the playback device 12 at the portion to be determined of plastic is moved in the X2 direction. At this time, since the stopper 12B stops the end face 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
And the heating / pressing unit 2500 does not hit the block 32. And
By rotating the rotary cutting blade 60 in the R direction by operating the motor 62 shown in FIG. 3, for example, paint or other types of stains or deposits B on the surface 270 in the manner shown in FIG.
Alternatively, the reproduction portion 280 is newly formed by removing the uneven portion. Thereafter, the rotary cutting blade 60 is moved to X as shown in FIG.
After retreating in one direction, the table 22 moves further in the Y1 direction.

Next, a heating and pressing step ST2-2 of the surface regeneration step ST2 is performed. In this step ST2-2, as shown in FIG. 13, the heating / pressing unit 2500 faces the reproduction unit 280 of the cabinet 260. The cabinet 260 is divided into blocks 32, 32 by the clamper 30.
The state is fixed to. In this state, the heating and pressing unit 250
When 0 operates the actuator 2566 shown in FIG. 3, the header 2501 moves in the direction of X2, and the header 2501 hits the reproduction portion 280, which is the determination target portion, as shown in FIG. The header 2501 is heated to a constant temperature by the cartridge heater 2503 in FIG. Therefore, the header 2501 instantaneously heats and softens the reproducing portion 280 of FIG. 15, and further applies pressure, so that the softened reproducing portion 280 is flattened by the tip of the header 2501. Therefore, even if minute irregularities are generated by machining in the machining step ST2-1, the irregularities can be flattened by softening and pressing.

Accordingly, even if the reproducing portion 280, which is the flattened target portion, is irradiated with infrared rays in a later step, the reflectance of the infrared rays can be increased, and the type of plastic of the cabinet 260 due to the infrared rays can be increased. Can be reliably determined. In this way, the reproduction part 28
After the flattening of the actuator 25 shown in FIG.
66 is operated to retreat the heating / pressing unit 2500 in the X1 direction. After the heating and pressurizing unit 2500 retreats, the process proceeds to the next analysis determination step ST0.

When the process proceeds to step ST3 of the analysis determination step ST0 in FIG. 19, 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 infrared spectroscopy device 14. At this time, the opening P of the table 22 is positioned corresponding to the analysis head 99 of the infrared spectroscope 14.

In step ST4 of analysis determination step ST0 in FIG. 19, as shown in FIG.
Moving in one direction, through the opening P
The reproduction portion 280 of 0 faces the analysis head 99. At this time, since the stopper 14B stops the end 22A of the table 22, the positional relationship between the analysis head 99 and the cabinet 260 is maintained, and the analysis head 99 does not hit the cabinet 260. There is no such thing. At the same time, although not shown, a proximity switch, a contact switch, or another manual switch activates the infrared spectroscopy device 14 which is an infrared spectroscopy device, and irradiates the reproduction portion 280 of the cabinet 260, which is a determination target portion, with infrared rays. Is determined.

At step ST5 of the analysis determination step ST0 of FIG.
0 is irradiated with the input beam IB shown in FIG. 7 and the return beam RB is detected by the detector 90. Thus, based on the spectrum obtained by the detector 90, the spectrum already registered in the computer is compared with the spectrum measured from the cabinet 260, which is the object to be determined, and the types of the plastic and the flame retardant are compared. Is determined. As described above, the type of the plastic material of the cabinet 260 can be analyzed and determined.

In step ST6 of analysis determination step ST0 in FIG. 19, 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
Then, the process proceeds to the sorting process in step ST7 of FIG. Then, the table 22 moves in the direction of Y2 in FIG. 17 and returns to the state of FIG. 8, and a cabinet 260 to be newly discriminated is placed on the table 22 and fixed by the clamper 30, and as described above. The reproduction part of the cabinet 260 is formed again in the same manner, and the type of plastic is determined.

In recycling plastics of products using plastics, an infrared spectrometer (FTI)
R) to determine the plastic material,
In order to prevent the accuracy of discrimination from being reduced due to paint, dirt, and irregularities on the plastic surface, the plastic surface is cut by a machined part such as a flyback cutter and regenerated. In order to improve the reduction of infrared reflectance due to the shaving of the plastic surface, about 100 to 18
By instantaneously softening and press-pressing the surface of the plastic with the heating and pressurizing unit kept at 0 ° C., the plastic surface with higher light reflectance can be reproduced.

After the regenerating process by cutting, the reflectance of infrared rays can be improved by hot pressing with a heating and pressing unit, and the accuracy of discriminating the type of plastic can be improved. By fixing the cabinet which is the object to be determined, the analysis point is determined, and since the work from the reproduction process to the analysis can be performed on the same basis, the work of determining the plastic material can be performed very efficiently. This determination device can also determine black plastic. With this determination device, the type and content of the flame retardant contained in the plastic can be specified.

The table 22 shown in FIG. 1 as described above includes 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, the clamper 30 can fix the calibration unit 5000 instead of the cabinet. Blocks 32 and 3
By providing an opening P between the cabinet 2
Regardless of the size of the 60, a playback portion 280 can be formed on the surface 270 of the cabinet 260. 24, the gold vapor deposition mirror device 5002 of the calibration unit 5000 can be brought into contact with the analysis head 99 from the opening P.

In the embodiment of the present invention, when recycling plastic of a product using plastic,
Infrared spectrometer (FTIR: Fourier Tran)
When discriminating the plastic material using sport Infrared Rays, the plastic surface is cut, ground, polished, heated, pressed, etc. in order to prevent the accuracy of the discrimination due to paint, dirt, and unevenness on the plastic surface. A mechanism for performing a surface regeneration treatment 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, Avoid other types of dirt, deposits or bumps as much as possible to provide a better cabinet 260 surface 260
A part to be discriminated in A can be searched for and determined as the surface treatment position and the analysis discrimination position. 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.

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.

In the embodiment of the present invention, calibration (Calibr) of an infrared spectrometer (FTIR) is performed about two or three times a day.
In order to carry out the calibration work of the infrared spectroscopy (FTIR) accurately and accurately, a jig incorporating a mirror device coated with gold is mounted on the fixed block portion of the moving pallet of the plastic discriminating system. Easy to do. In the embodiment of the present invention, an infrared spectrometer (FTI)
R) itself is very sensitive to temperature, pressure and humidity, so it is housed in a protector in a dehumidified atmosphere that is not affected by external temperature / humidity. When the calibration device is used in such a structure, the infrared spectroscopy device (FTIR) does not need to be output from the protector when performing the calibration operation, and is not affected by temperature / humidity even under a high-humidity use condition.

According to the embodiment of the present invention, it is possible to maintain an optimum installation environment of the infrared spectroscopy without frequently exposing the infrared spectroscopy to an external environment. In the embodiment of the present invention, the mirror device on which one-touch gold deposition is performed can be set in the infrared spectrometer, so that the working efficiency is high.

In order to prevent the infrared spectrometer from affecting the analysis result due to the surrounding environment, for example, temperature change / humidity change / micro vibration, etc., the protector in the present invention has the following arrangement. It has been subjected. Infrared spectrometer (F
TIR) is housed in a closed box. In order to eliminate the influence of temperature / humidity from outside, dry air or air whose temperature and humidity are controlled is supplied to the storage structure. By supplying air to the inside of the storage structure, a pressurized state is applied to the outside, so that the analysis head section can be taken out.
In order to prevent the maintenance of the infrared spectroscopy unit from being reduced due to the closed storage structure, an opening / closing door is provided on the back of the infrared spectroscopy storage structure, and the infrared spectroscopy itself is moved in the rear direction by a slide device. Can be pulled out.

In order to prevent the influence of micro-vibration, a sheet made of elastic foam is inserted between the infrared spectroscopy device and the slide device. This absorbs microvibrations from the surroundings with the urethane foam, and prevents the vibrations from being transmitted to the infrared spectroscopy itself. In order to maintain the positional relationship between the infrared spectroscopy device and the slide device on the elastic foam, the mutual dimensions between the reference and the leg portion of the infrared spectroscopy device are defined based on the external dimensions that match the positional relationship with the slide device. It is made to have dimensions. The positional relationship is maintained between the slide device and the moving operation unit that fixes the analyte on the inner surface side of the block.

By using the protector in the present invention, the entire plastic discriminating apparatus incorporating the infrared spectrometer can be installed not only in a completely air-conditioned room but also in an environment exposed to the outside air temperature. Due to the spot-like air conditioning equipment, the equipment investment can be greatly reduced. For micro vibration
It is not necessary to take large-scale floor vibration countermeasures.

The present invention is not limited to the above embodiment. In the above-described embodiment, examples of the object to be determined include a television receiver and a cabinet of a display device of a computer. 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. The analyzing unit may use infrared light of another wavelength or light of another type of wavelength in addition to determining the type of plastic using, for example, mid-infrared (Mid IR).

[0076]

As described above, according to the present invention,
When the type of plastic is determined, the calibration of the infrared spectrometer can be performed accurately and easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a plastic discriminating apparatus including a calibration apparatus for an infrared spectrometer 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 an example of the configuration of a playback device for a plastic discrimination target portion in FIG. 1;

FIG. 4 is a diagram showing an example in which a regenerated portion is formed by a rotary cutting blade of a regenerating device for a plastic discrimination target 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 a machined part of the reproducing apparatus is close to a surface of a determination target portion of the cabinet.

FIG. 13 is a view showing a state in which the heating and pressing unit of the reproducing apparatus faces the surface of the discrimination target portion 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 showing a state in which a heating / pressing unit of the reproducing apparatus heats and pressurizes a determination target portion.

FIG. 16 is a diagram showing a state in which a reproduction portion is close to or in contact with an analysis head of the analysis unit.

FIG. 17 is a diagram showing a state in which a table and a cabinet are separated from an analysis unit after analysis.

FIG. 18 is a cross-sectional view illustrating a structural example of a heating and pressing unit.

FIG. 19 is a flowchart showing an example of a plastic discriminating method including a plastic discriminating target portion reproducing method.

FIG. 20 is a side view showing an example of a protector of the infrared spectrometer.

FIG. 21 is a front view of the protector.

FIG. 22 is a sectional view showing an example of a calibration unit.

FIG. 23 is a front view of a calibration unit.

FIG. 24 is a diagram showing a state in which the analysis head of the infrared irradiation unit and the gold vapor deposition mirror device are in close contact with each other in a state where the calibration unit is detachably fixed to the mounting unit.

FIG. 25 is a flowchart showing an example of a method for calibrating an infrared spectrometer.

FIG. 26 is a diagram showing another embodiment of the calibration device for the infrared spectrometer of the present invention.

FIG. 27 is a diagram showing an example of mounting a calibration unit of the calibration device of FIG. 26;

[Explanation of symbols]

Reference numeral 10: plastic discrimination device, 12: reproduction device for plastic discrimination target portion, 12M: machined part of the reproduction device, 14: infrared spectroscopy device, 20 ...
・ Move operation unit, 22 ・ ・ ・ Table, 30 ・ ・ ・ Clamper, 260 ・ ・ ・ Cabinet (object to be determined), 2
70... Cabinet surface, 280... Cabinet reproduction part (corresponding to the discrimination target part), 1000.
A light irradiator 1200; a position change setting unit 1210
... Elevating stand, 1300 ... Reference processing reference position, 25
00: heating / pressing unit of the reproducing apparatus, 4000: protector, 4040: opening of the protector, 50
00: Unit for calibration, 5002: Mirror device for gold deposition, 5013: Holder, 5014: Body,
5015: coil spring (biasing member), 501
7 ... Flange part, 5020 ... Infrared irradiation part, 5
030: mounting unit, 5060, 5070: calibration device for infrared spectrometer, P: opening

Claims (10)

[Claims] 1. An infrared spectroscopy device provided in a plastic discriminating device for discriminating a type of plastic of an object to be discriminated, wherein the infrared spectroscopy device is disposed in a protector that maintains a constant atmosphere. A calibration device for calibrating the infrared spectrometer to accurately analyze the type of the plastic by irradiating infrared light to the object to be determined and receiving the reflected light thereof, wherein the object to be determined is A mounting part to be mounted, and is detachably disposed on the mounting part, is closely attached to an infrared irradiating part of the infrared spectrometer in the protector, reflects infrared light from the infrared irradiating part, and returns to the infrared spectrometer side. A calibration unit for an infrared spectrometer, comprising: a returning calibration unit. 2. The calibration unit includes: a main body; a gold vapor deposition mirror that reflects infrared rays from the infrared irradiation unit; and a holding unit that is movably disposed in the main body and holds the gold vapor deposition mirror. When the infrared irradiating unit of the infrared spectroscopy device is brought into close contact with the gold vapor deposition mirror, in order to secure the adhesion, an attachment is provided between the holding unit and the main body to receive the movement of the holding unit. The calibration device for an infrared spectrometer according to claim 1, further comprising a biasing member. 3. The infrared spectrometer according to claim 2, wherein the main body has a flange portion for fixing the main body to the mounting portion in a state where the gold vapor deposition mirror is arranged in an opening of the mounting portion. Calibration device. 4. The calibration apparatus for an infrared spectrometer according to claim 3, wherein the mounting section has a clamp for detachably clamping the main body to the mounting section. 5. The calibration device for an infrared spectrometer according to claim 3, wherein the main body is detachably fixed to the mounting portion with a screw. 6. The infrared spectrometer according to claim 1, wherein the protector has a space having a closed structure for accommodating the infrared spectrometer, and the space is supplied with air for controlling temperature and humidity. Calibration equipment. 7. The calibration device for an infrared spectrometer according to claim 6, wherein the protector has a slide device for mounting the infrared spectrometer and taking it out of the space. 8. An infrared spectrometer provided in a plastic discriminating device for discriminating the type of plastic of an object to be discriminated, wherein the infrared spectrometer is disposed in a protector that maintains a constant atmosphere. A calibration method for calibrating the infrared spectrometer to accurately analyze the type of plastic by irradiating infrared light to the object to be determined and receiving the reflected light thereof, wherein the object to be determined is A mounting section for mounting, an arrangement step of arranging a calibration unit that reflects infrared rays from the infrared irradiation section of the infrared spectroscope in the protector, and the calibration unit arranged in the mounting section. Calibration step in which the infrared spectroscope is brought into close contact with the infrared irradiator, reflects infrared light from the infrared irradiator and returns the infrared spectrometer to the infrared spectrometer. Method of calibrating an infrared spectrometer, which comprises a. 9. The gold deposition mirror of the calibration unit,
9. The method for calibrating an infrared spectrometer according to claim 8, wherein the infrared light from the infrared irradiator is reflected and returned to the infrared spectrometer. 10. The gold-deposited mirror of the calibration unit, when the gold-deposited mirror is in close contact with the infrared irradiating part, the gold-deposited mirror is formed by The method for calibrating an infrared spectrometer according to claim 9, wherein the method is biased toward the infrared irradiator.