JP2002131310A - Device for regenerating portion of plastics used for identification and method of regenerating portion of plastics used for identification - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for regenerating a portion of plastics used for identification and a method of regenerating a portion of plastics used for identification, capable of surely regenerating a portion used for identification of an object of identification made of plastics when the kind of the object of identification made of plastics is identified by irradiating it with light. SOLUTION: This device has a heating/pressing part 2500. After a surface of the portion 280 used for identification is mechanically worked to improve its surface condition, the portion 280 is heated and pressed by the heating/ pressing part 2500 applied on the surface whose surface condition has been improved. The heating/pressing part 2500 is equipped with a header part 2505 to be applied on the surface for heating, a heat transfer means 2900 for transferring heat to a header surface 2501 of the header part 2505, an actuator 2566 for flattening the surface heated by the heat from the header surface 2501 by pressing the header surface 2501 of the header part 2505 against the surface of the portion used for identification, and a cooling part 2800 for cooling the flattened surface heated by the heat from the header surface 2501.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic for regenerating a plastic discrimination target portion of a plastic discrimination target when discriminating the kind of plastic of the plastic discrimination target by irradiating light. And a method for regenerating a plastic discrimination target portion.

[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. Moreover, if the surface is rough after removing the deposits on the surface of the plastic, it may be difficult to determine the type of the material of the plastic. Therefore, the present invention solves the above-described problem, and when discriminating the type of a plastic discriminated object by irradiating light, it is possible to surely reproduce the discrimination target portion of the plastic discriminated object. It is an object of the present invention to provide a plastic discrimination target reproducing apparatus and a plastic discrimination target reproducing method.

[0004]

According to a first aspect of the present invention, when the type of a plastic discrimination target is determined by irradiating light, the plastic discrimination target is reproduced from a discrimination target portion of the plastic discrimination target. It is a playback device of the discrimination target portion of the plastic to perform, after mechanically processing the surface of the discrimination target portion to improve the surface state, hit the surface where the surface state has been improved A heating and pressurizing unit that heats and pressurizes, the heating and pressurizing unit includes a header unit that is heated by being applied to the surface, a heat transfer unit that transfers heat to a header surface of the header unit, and the header unit. An actuator that presses the header surface against the surface of the determination target portion to flatten the surface heated by the heat from the header surface; and an actuator that is heated by the heat from the header surface. A cooling unit for cooling the planarized the surface Te is a reproduction apparatus discrimination target portion of the plastic, characterized in that it comprises a.

According to the first aspect, the surface of the portion to be determined is improved by mechanical processing. After the improvement is performed, the heating and pressurizing unit heats and presses against the surface whose surface condition has been improved. The header of the heating and pressurizing unit is heated by applying it to the surface. The thermal transfer means transfers heat to the header surface of the header. The actuator is
The header surface of the header portion is pressed against the surface of the portion to be determined, and the surface heated by the heat from the header surface is flattened. The cooling unit cools the flattened surface heated by the heat from the header surface.

[0006] Thus, the machining portion improves the surface condition of the discrimination target portion, so that, for example, paint, dirt, unevenness, and the like adhering to the surface of the discrimination target portion can be completely removed. Then, the header surface of the header part of the heating and pressurizing part heats and softens the surface of the discrimination target part where the surface is improved, and the cooling part cools the surface, thereby solidifying the plastic surface. As a result, the surface state of the determination target portion that is slightly roughened by the machined portion can be smoothed. Accordingly, when the type of the plastic discrimination target object is determined by irradiating light, the surface of the determination target portion has a good light reflectance when irradiated with light. Therefore, the type of plastic can be reliably determined using light.

According to a second aspect of the present invention, in the apparatus of the first aspect, the thermal transfer means has a rod-shaped heater. According to a third aspect of the present invention, in the apparatus of the first aspect, the thermal transfer unit includes a high-frequency induction heater.

According to a fourth aspect of the present invention, in the apparatus of the first aspect, the cooling section circulates a cooling medium in the header section.

According to a fifth aspect of the present invention, when discriminating the type of the plastic object to be discriminated by irradiating light, the plastic discrimination for reproducing the discrimination target portion of the plastic object to be discriminated is performed. A method of reproducing a target portion, wherein a mechanical processing step of mechanically processing the surface of the determination target portion to improve the surface state, and heating to pressurize the surface having the improved surface state by heating Pressurizing step, wherein in the heating and pressurizing step, a heat transfer step of transferring heat from a thermal transfer unit to the header surface of the header portion, and the header surface of the header portion to the surface of the determination target portion. A flattening step of flattening the heated surface by pressurizing the surface with an actuator, and a cooling step of cooling the surface using a cooling unit. A determination target region of the reproducing method for a plastic to.

According to a fifth aspect of the present invention, in the machining step, the surface of the portion to be determined is mechanically worked to improve the surface condition. That is, for example, paint, dirt, irregularities, and the like adhering to the surface of the determination target portion are mechanically and reliably removed. Then, in the heat transfer step of the heating and pressurizing step, heat is transferred from the heat transfer means to the header surface of the header portion. In the heating and pressurizing step, heating is performed by applying the header surface of the header portion to the surface of the determination target portion.
In the flattening step, the heated surface is flattened by pressing the header surface of the header portion against the surface of the portion to be determined by the actuator. Then, in the cooling step, the flattened surface is cooled using the cooling unit. Thus, the machining portion improves the surface condition of the determination target portion, so that, for example, paint, dirt, unevenness, and the like attached to the surface of the determination target portion can be completely removed.

According to a sixth aspect of the present invention, in the method for regenerating a plastic discrimination target portion according to the fifth aspect, the thermal transfer means has a rod-shaped heater.

According to a seventh aspect of the present invention, in the method for regenerating a plastic discrimination target portion according to the fifth aspect, the thermal transfer means has a high-frequency induction heater.

According to an eighth aspect of the present invention, in the method for regenerating a portion to be discriminated from plastic according to the fifth aspect, the cooling section circulates a cooling medium in the header section.

[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 plastic discriminating apparatus including a reproducing apparatus of a plastic discrimination target portion according to the present invention. The plastic discriminating apparatus 10 generally includes a light irradiation unit 1000, a position change setting unit 1200, a plastic discrimination target reproducing device 12, an analyzing unit 14, and a moving operation unit 20. 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 unit 1000 shown in FIG. 1 applies 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 apparatus 12 for reproducing a plastic object to be discriminated shown in FIGS.
An apparatus for improving the light reflectance by removing paint, dirt, or irregularities adhering to 0, heating and pressurizing to regenerate the surface of the discrimination target portion (Regeneration). is there. The analyzing unit 14 in FIG. 1 uses a reproduced portion (corresponding to a discrimination target portion) 280 of the surface 270 illustrated in FIG. On the other hand, by irradiating light for measurement, for example, infrared rays, and obtaining the return light (reflected light), it has a function of analyzing and discriminating the type of plastic in the reproduction portion (determination target portion) 280. .

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 irradiation part 1000, the playback device 12 for the plastic discrimination target part, and the analysis part 14. Movement operation unit 20
Will be described in more detail. The movement operation unit 20 has a table 22, a pedestal 24, a base 26, and the like. The table 22 in FIG. 1 is a portion on which a position change setting unit 1200 for a cabinet 260 as an 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 side of the table 22. In the block 32, the clamper 30 can rotate in the T direction about the axis 36. The rotation of the clamper 30 in the T direction is performed by the motor 3
4 is operated. As shown in FIG. 11, the clamper 30 is configured to abut the surface 270 of the cabinet 260 against the block 32 from the inside and fix it removably. 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 3
An opening P is formed between 2 and the block 32.

The table 22 of FIG. 1 rests on a pedestal 24. The pedestal 24 has a rail 40. Pedestal 2
4 has a motor 42 and a feed screw 44,
2 operates, the feed screw 44 rotates, and the table 22
Can be moved in the X direction along the rail 40 of the pedestal 24 and positioned. The pedestal 24 rests on a base 26. The base 26 has a rail 50, a motor 52, and a feed screw 54. When the motor 52 operates and the feed screw 5
When 4 rotates, the pedestal 24 moves along the rail 50 in the Y direction and can be positioned. In FIG. 1, a light irradiation unit 1000, a position change setting unit 1200, a playback device 12 for analyzing a plastic target object, an analysis unit 14, and motors 34, 42, and 52 operate according to instructions from the control unit 100.

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.
Is located in the front part of the playback device 12 at the portion to be discriminated from plastic.

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 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 embodiment of the reproducing apparatus 12 for the portion to be discriminated from plastic shown in FIG. 1 will be described in more detail. FIG. 3 shows an example of the structure of the reproducing device 12 for the plastic discrimination target portion. The reproduction device 12 for the plastic discrimination target portion shown in FIG.
have. The machined portion 12M removes paint, dirt, or irregularities adhering to the surface of the plastic by shaving the surface of the reproduction portion 280, which is the portion to be discriminated, to improve the surface condition. This is to prevent the discrimination accuracy from lowering. Heating and pressing unit 2500
If the surface roughness of the part to be discriminated by the plastic machined by the machined part 12M is large, the light reflectance is reduced. Therefore, for the purpose of improving the decrease in the light reflectance, the discrimination target is further improved. Instantly heat and soften the surface of the site,
Then, it is pressurized and cooled to be flattened and solidified. 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 reproduced portion (determination target 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. 4, a rotary cutting blade 60 of a disk type is provided.
2 continuously rotates in the R direction. This rotary cutting blade 60 may be a full-back cutter. 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.
0 has a structure as shown in FIGS.
The heating / pressing unit 2500 shown in FIGS. 18 and 19 has a thermal transfer unit 2900 using a so-called rod-shaped heater.
The rod-shaped heater is a cartridge heater and is replaceable. The heating / pressing unit 2500 is roughly composed of an actuator 2566, a header unit 2505, a thermal transfer unit 2900,
It has a cooling unit 2800.

First, the header section 2505 shown in FIGS.
Will be described. The header 2505 is also called a heat press header or the like, and has a cylindrical portion 3077, a header surface 2501, a flange 3079, and a heat press holder 3016. Flange part 30
79 is a heat press holder 3 with a bolt 3020.
016 is detachably fixed. O between the flange portion 3079 and the heat press holder 3016
A ring 3021 is arranged and a flange 307
9 and the heat press holder 3016 are sealed by the O-ring 3021 so that no refrigerant leaks. The tip of the cylindrical portion 3077 has a header surface 2501
Are formed. The header surface is formed in a so-called mirror state.

The cylindrical portion 3077 of the header 2505 is
It is a hollow member, and a partition plate 3014 is arranged in the cylindrical portion 3077 by press fitting. A cutout portion 3015 is formed at a portion corresponding to the header surface 2501 at the tip of the partition plate 3014. Another partition plate 3017 is arranged in the hole 3098 of the heat press holder 3016 by press fitting. The cylindrical portion 3077 of the header 2505 is made of metal, for example, alloy tool steel having excellent thermal conductivity and being easily mirror-finished. Heat press holder 301
6 has a hole 3098 and two through holes 3040. The through holes 3040, 3040 are formed in a direction perpendicular to the wide surface of the partition plate 3017. Through hole 3
At the end of 040, a female screw 3018 is formed.
A nipple 3019 is detachably screwed and attached to the female screw 3018. The refrigerant supply pipes 3025 and 3026 of the nipple 3019 are connected to the refrigerant supply unit 3331.

The coolant supplied from the coolant supply portion 3331 passes through the through hole 3040 of the heat press holder 3016 in the direction of arrow R, passes through the cylindrical portion 3077 in the direction of arrow R1, and has a notch corresponding to the header surface 2501. 3
After passing through the inside of the cylindrical portion 3077 in the direction of R2, the through hole 30 of the heat press holder 3016
It passes through R40 in the direction of R40. Thereby, the refrigerant supply unit 3
331 from the already heated header surface 2
501 can be cooled rapidly. Examples of the refrigerant supplied from the refrigerant supply unit 3331 include compressed air,
Water or a liquid for other cooling refrigerants such as ethylene glycol, oil and the like can be used. Movable body 302
2 is fixing the heat press holder 3016. The movable body 3022 is the rod 25 of the actuator 2566.
67. From this, actuator 2
When the controller 566 operates according to a command from the control unit 100, the header unit 2505 can move in the X1 or X2 direction.

Next, the thermal transfer unit 2900 will be described. The thermal transfer unit 2900 is a device that transfers heat to the header surface 2501 of the header section 2505. The thermal transfer unit 2900 is, for example, of a rod-shaped heater type, and includes a rod-shaped heater holder 3030 and a rod-shaped heater 302.
7. The rod-shaped heater 3027 is held by a rod-shaped heater holder 3030. Bar-shaped heater holder 3
As shown in FIGS. 20 and 21, 030 can be guided and moved by the guide 3800 in the F direction or the F1 direction by the operation of the actuator 3801. As shown in FIG.
In a state in which the header 30 is retracted, the header surface 2501 of the header portion 2505 is
In this case, thermal transfer can be performed by closely contacting the surface of the recording medium with the ink.

As shown in FIG. 20, the rod-shaped heater holder 3
030, the rod-shaped heater holder 3
030 faces the header surface 2501, and by operating the actuator 2566 of FIG.
The heat generated by the rod-shaped heater 3027 is thermally transferred to the header surface 2501 by being brought into close contact with zero. That is, the header surface 2501 is heated by the bar-shaped heater 3027.

The material of the rod-shaped heater holder 3030 in FIG. 18 is aluminum, brass (brass), iron (steel),
Stainless steel can be adopted. The rod-shaped heater 3027 generates heat when energized by the control unit 100.

As shown in FIG. 18, a thermocouple 302 as a temperature sensor is provided on the cylindrical portion 3077 of the header 2505.
8 are provided. Further, another thermocouple 3031 as a temperature sensor is provided corresponding to the bar-shaped heater 3027. The thermocouple 3028 supplies the temperature of the header surface 2501 to the control unit 100 as a signal S1 in order to control the temperature of the header surface 2501.
The thermocouple 3031 supplies the temperature of the rod-shaped heater 3027 to the control unit 100 as a signal S2. Control unit 100
Can control the heat generation temperature of the rod-shaped heater 3027 based on the signal S2 from the thermocouple 3027 to control the temperature of the surface of the header surface 2501 based on the signal S1 from the thermocouple 3028. . In the case where thermal transfer is performed in a state where, for example, the header surface 2501 is in close contact with the rod-shaped heater holder 3030 in FIG. 18 or FIG. 20, the supply of the refrigerant from the refrigerant supply unit 3331 in FIG. 18 is stopped.

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 analyzer 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, FIGS. 11 to 17 and FIGS. 18 to 22
With reference to, a method of regenerating a plastic determination target portion and a method of determining the type of plastic will be described. First, as shown in the light irradiation step ST1-1 of FIG.
The cabinet 260 is placed on the elevating platform 1210 of No. 0, and the surface 270 of the cabinet 260 abuts against the inner surface 32a of the block 32.

Light 110 from light source 1003 in FIGS.
Then, the light 1100 is irradiated to the inner surface 260B of the cabinet 260 through the prism 1120. The operator can determine the reference position 130 based on the position of the light 1100.
0 is selected on the inner surface 260B of the cabinet 260. Determination processing reference position setting step ST1-2 in FIG.
In the above, 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 cabinet 260 that is good or optimal for discrimination is obtained.
Is determined. That is, at the discrimination processing reference position 1300, the cabinet 260
Is selected based on the position of the light 1100, on the outer surface 260A, where there is no adhesion of paint or other contamination or unevenness. The above operation is performed by the light irradiation step ST1-1 in FIG.
1-2.

The surface regeneration step ST2 in FIG. 22 includes a machining step ST2-1 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 shaved to improve the surface condition, thereby removing paint or other types of dirt or irregularities on the plastic surface. Completely mechanically removed immediately. This prevents the accuracy of discriminating the type of plastic from being reduced when the reproducing portion 280 is irradiated with infrared rays. Heat and pressure step ST2-2
In the reproduction portion 280 machined in the machining step ST2-1, irregularities (surface roughness) may be generated by machining. Since the irregularities due to the mechanical processing cause a decrease in the reflectivity of infrared rays, the surface of the reproducing portion 280 is instantaneously softened by using the heating / pressing unit 2500 and press-pressed to prevent the reflectivity of infrared rays from decreasing. Thereby, it is cooled to a flat state. Thereby, the flattened reproduction portion 280 improves the reflectance of infrared rays when the infrared rays are irradiated.

In the surface regeneration step ST2 of FIG. 22, the motor 34 of FIG. 1 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 reproducing apparatus 12 and the main body 64 and the cabinet 260 are not damaged.
The block 500 does not correspond to the block 32. Then, the motor 62 shown in FIG. 3 is operated to rotate the rotary cutting blade 60 such as a full-back cutter in the R direction, so that, for example, as shown in FIG. Alternatively, the reproduction portion 280 is newly formed by removing the uneven portion. Thereafter, after the rotary cutting blade 60 has retreated in the X1 direction as shown in FIG. 13, the table 22 further moves in the Y1 direction.

Next, a heating and pressing step ST2-2 of the surface regeneration step ST2 of FIG. 22 is performed. In the heating and pressurizing step ST2-2, as shown in FIG.
0 faces the playback portion 280 of the cabinet 260. The cabinet 260 is fixed to the blocks 32 by the clamper 30. The heating and pressurizing step ST2-2 includes a thermal transfer step S2-2 as shown in FIG.
T2-2-1 and a flattening step ST2-2-2 and a cooling step ST2-2-3.

In the thermal transfer step ST2-2-1, FIG.
8 and FIG. 20, as shown in FIG.
Are facing the header surface 2501. In this state, the actuator 2566 operates to bring the header surface 2501 into close contact with the rod-shaped heater holder 3030 for a predetermined time. The rod-shaped heater holder 3030 transfers heat to the header surface 2501, and the header surface 2501 is heated. At the time of this heating, the refrigerant supply unit 3331 in FIG.
Does not supply refrigerant. This thermal transfer step ST2
-2-1 is a machining step ST as shown in FIG.
It may be performed simultaneously with 2-1. Header surface 2 of FIG.
The surface temperature of 501 is, for example, about 180 ° C to 300 ° C. When the surface temperature is lower than 180 ° C., the regenerated portion 280 of the plastic surface 270 is not sufficiently softened, and a surface having good light reflectance cannot be obtained. Surface temperature is 3
If the temperature is higher than 00 ° C., the regenerated portion 280 of the plastic surface 270 will be in a blister state, which also makes it impossible to obtain a surface having good light reflectance. Header surface 250
After 1 is heated, the header portion 2505 returns in the X1 direction by the operation of the actuator 2566, and the header surface 2501 is separated from the rod-shaped heater holder 3030.
Thereafter, as shown in FIG.
0 is retracted by the operation of the actuator 3801.

Next, a flattening step ST2-2 shown in FIG.
Then, the heated header surface 2501 is heated by applying pressure to the surface 270 of the cabinet 260 as shown in FIG. Therefore, the header surface 2501
The cut surface of the surface 270 shown in FIG. 21 is instantaneously heated and softened to be pressed. From this, the mirror surface state of the header surface 2501 is transferred to the plastic surface and flattened.

Next, a cooling step ST2-2 shown in FIG.
3 immediately after the press, the refrigerant supply unit 33 in FIG.
31 is a heat press holder 3016 and a cylindrical portion 3077
By flowing the refrigerant in the R to R3 directions along the flow path of
The header surface 2501 is rapidly cooled. As a result, the surface of the plastic in contact with the header surface 2501 is solidified. Therefore, the plastic surface is in a mirror-like state with good reflectivity.

After the above-described press state of heating and pressurizing is performed for, for example, 1 to 5 seconds, the header portion 2505 is retracted from the surface of the plastic, but immediately thereafter, the header surface 2501 is again in the form of a rod as shown in FIG. Return to the front of the heater holder 3030 and set the rod-shaped heater holder 3
030 may be maintained. This allows
The surface 270 of the cabinet 260 to be transported next can be heated and pressed.

The reproduced portion 28 which is the flattened target portion
Even if an infrared ray is irradiated in a later step with respect to 0, the reflectance of the infrared ray can be increased, and the type of plastic of the cabinet 260 can be reliably determined by the infrared ray. After the reproduction portion 280 is thus flattened, the actuator 2566 shown in FIG. 15 is operated to retreat the heating / pressing unit 2500 in the X1 direction. After the heating and pressurizing unit 2500 retreats, the next analysis determination step ST0 is performed.
Move on to

At step ST3 of the analysis determination step ST0 of FIG. 22, 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. 22, 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 analysis unit 14 which is an infrared spectroscope, and irradiates the reproducing portion 280 of the cabinet 260, which is a target portion of the cabinet 260, with infrared rays, thereby forming a plastic. The type is determined.

In step ST5 of the analysis discriminating 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 the analysis discriminating step ST0 of FIG. 22, 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.
8 and return to the state of FIG.
The cabinet 260 as a new object to be discriminated is placed on 2 and fixed by the clamper 30, and the reproduction portion of the cabinet 260 is formed again in the manner described above to discriminate the type of plastic.

In the recycling of plastics of products using plastics, when determining the material of the plastic using an infrared spectrometer, the accuracy of determination due to paint or other kinds of dirt or irregularities attached to the plastic surface. In order to prevent the deterioration of the plastic, the surface of the plastic is cut by a machined portion such as a full-back cutter to perform a regeneration process. In order to improve that the reflectance of infrared rays has decreased due to the shaving of the plastic surface, the plastic surface is instantaneously softened by the heating and pressurizing unit after cutting, and pressurized and pressed. Achieve good plastic surface regeneration.

After the regenerating process by cutting, the reflectance of infrared rays can be improved by hot pressing with a heating / 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 of FIG. 1 as described above has 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 (FT-MIR: Fourier Tr)
ansform-Mid Infrared Spec
cutting, grinding, and polishing of the plastic surface to prevent the accuracy of the discrimination due to paint or other types of dirt or irregularities adhering to the plastic surface when determining the plastic material using a・ A mechanism for performing surface regeneration treatment by heating and pressing is provided.

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.

FIGS. 23 to 26 show another embodiment of the present invention, and FIGS. 23 to 26 show modifications of the embodiment of FIGS. The heating / pressing unit 2500 shown in FIG.
However, the difference from the heating / pressing unit 2500 in FIG. 18 is the thermal transfer unit 3900, and the other elements are the same as those in FIG.
Is the same as the embodiment of FIG.
The same reference numerals are used for the description.

The thermal transfer means 3900 shown in FIG. 23 has a high-frequency oscillator 4027 and a high-frequency oscillator holder 4030. This holder 4030 is a high-frequency oscillator 40
27 and the holder 4030 shown in FIGS.
As shown in FIG. 6, the actuator 4801 can move along the guide 4800 by operating the actuator 4801 in the F direction or the F1 direction. This high frequency oscillator 4027
Is for generating high-frequency induction heat under the control of the control unit 100. By bringing the header surface 2501 close to the high-frequency oscillator 4027,
The high-frequency induction heat generated at 027 is thermally transferred. The temperature of the header surface 2501 is
The control unit 100 can be notified by the signal S1 from the control unit 8. The control unit 100 controls the temperature of the header surface 2501 by controlling the temperature of the high-frequency induction heat generated by the high-frequency oscillator 4027 based on the signal S1.
At this time, the temperature of the header surface 2501 is 180 ° C. to 30 ° C.
The temperature is 0 ° C., which is the same as the temperature in the case where the rod-shaped heater in FIG. 18 is used. Even if such a high frequency induction heating type thermal transfer unit 3900 is used, the header surface 2501
Can be heated, and the heat transfer step ST2 in FIG.
In -2-1, thermal transfer is performed.

As shown in FIG. 25, the header surface 2501
Approach the inside of the high-frequency oscillator 4027 to heat the header surface by high-frequency induction. At this time, the supply of the refrigerant from the refrigerant supply unit 3331 in FIG. 23 is stopped. In the flattening step ST2-2-2 in FIG. 22, after the header surface 2501 is sufficiently heated by the high-frequency oscillator 4027, as shown in FIG.
Moves to the retracted position, where the header surface 2501 abuts against the surface 270 of the cabinet 260 and instantaneously softens the plastic cutting surface and presses it under pressure. Thereby, the mirror state of the header surface 2501 is transferred to the plastic surface.

Then, the cooling step ST2-2 shown in FIG.
In FIG. 3, the refrigerant supply unit 333 in FIG.
1 supplies the cooling medium, so that the header surface 2501
Is cooled, and the surface of the plastic with which the header surface 2501 is in contact is solidified. As a result, the surface of the plastic is brought into a mirror-like state having a good reflectance. After such a heat press operation is performed for, for example, 1 to 5 seconds, the header surface 2501 is retreated from the plastic surface, and immediately thereafter, as shown in FIG.
01 returns to the position before the high-frequency oscillator 4027 to induce high-frequency heating on the header surface 2501 again. This may cause the next incoming cabinet surface 270 to be immediately heated. With this device, it is possible to determine a black plastic material and to specify the type of flame retardant contained in the plastic material with a probability of 99% or more.

High precision plastic material (99% or more)
Discrimination and classification are possible. After the regeneration by cutting, the reflectance of infrared rays can be improved by heat pressing to improve the discrimination accuracy. By fixing the object to be measured, the analysis point is determined, and therefore, the operations from reproduction to analysis can be performed on the same basis, so that the operation of discriminating the plastic material can be performed very efficiently.

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 target reproducing 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).

[0067]

As described above, according to the present invention,
When the type of the plastic discrimination target is determined by irradiating light, the discrimination target portion of the plastic discrimination target can be reliably reproduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a preferred embodiment of a plastic discriminating apparatus including a plastic discriminating target portion reproducing apparatus according to 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 diagram illustrating an example in which the thermal transfer unit of the heating and pressing unit according to the embodiment of the present invention is a rod-shaped heater.

FIG. 19 is a side view showing the heating and pressing unit of FIG. 18;

FIG. 20 is a view showing a state in which the header surface of the heating / pressing unit in FIG. 18 is heated by a bar-shaped heater and the surface of the cabinet is machined by a rotary cutting blade.

FIG. 21 is a view showing a heat press step of heating and pressing the surface of the cabinet using the heated header surface.

FIG. 22 is a flowchart showing an example of a plastic discrimination method including a method of regenerating a plastic discrimination target portion in the embodiment of the present invention.

FIG. 23 is a view showing another embodiment of the heating and pressurizing unit of the present invention, showing an example in which a thermal transfer unit uses a high-frequency oscillator.

FIG. 24 is a plan view of FIG. 23;

FIG. 25 is a diagram showing a state in which the header surface is heated by the high-frequency oscillator, and the rotary cutting blade is machining the surface of the cabinet.

FIG. 26 is a view showing a heat press step in which the surface of the cabinet is heated and pressed by the heated header surface.

[Explanation of symbols]

Reference numeral 10: plastic discrimination device, 12: playback device for plastic discrimination target part, 12M: machining part of playback device, 14: analysis unit, 20: moving operation unit, 22 ..Tables, 30 ... clampers, 2
60 ... cabinet (object to be determined), 270
· Surface of cabinet, 280 ··· Reproduction part of cabinet (corresponding to discrimination target part), 2500 · · · heating and pressurizing part of reproduction device, 2501 · · · header surface, 250
5 ... header part, 2566 ... actuator,
2900: thermal transfer means, 3027: rod-shaped heater, 3900: thermal transfer means, 4027: high-frequency oscillator

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2G059 AA10 BB08 CC20 DD02 DD12 EE02 EE09 FF20 GG01 GG02 HH01 JJ12 JJ13 JJ22 JJ30 KK01 MM05 PP02 PP04 3F079 CA31 CB01 CB25 CB33 4F301 BF25 BF40

Claims (8)

[Claims] An apparatus for reproducing a plastic discrimination target portion for regenerating a plastic discrimination target portion when the plastic discrimination target object type is irradiated by light. And, after mechanically processing the surface of the determination target portion to improve the surface state, the heating and pressurizing unit to heat and press against the surface having the improved surface state. A heating and pressurizing section, a header section for applying heat to the surface, a heat transfer unit for transferring heat to the header surface of the header section, and a header surface of the header section for the surface of the determination target portion; An actuator that pressurizes the surface heated by the heat from the header surface to flatten the surface, and cools the flattened surface heated by the heat from the header surface. And a cooling unit that performs the determination. 2. The apparatus according to claim 1, wherein the thermal transfer unit includes a rod-shaped heater. 3. The apparatus according to claim 1, wherein the thermal transfer unit includes a high-frequency induction heater. 4. The apparatus according to claim 1, wherein the cooling section circulates a cooling medium in the header section. 5. A method for regenerating a plastic discrimination target portion for regenerating the plastic discrimination target portion when the plastic discrimination target object type is irradiated by light. A machining step of mechanically processing the surface of the determination target portion to improve the surface state, and a heating and pressurizing step of heating and pressurizing the surface having the improved surface state. In the heating and pressurizing step, a heat transfer step of transferring heat from a heat transfer unit to the header surface of the header portion, and pressing the header surface of the header portion against the surface of the determination target portion by an actuator. A flattening step of flattening the heated surface, and a cooling step of cooling the surface using a cooling unit. How to regenerate the tic discrimination target site. 6. The method according to claim 5, wherein the thermal transfer unit has a rod-shaped heater. 7. The method according to claim 5, wherein the thermal transfer unit has a high-frequency induction heater. 8. The method according to claim 5, wherein the cooling section circulates a cooling medium in the header section.