JP2009214174A - Cutting device of waste electric appliance, and collecting method for recycling waste electric appliance using the cutting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently sort and collect specified parts and members in a recycling process in which various waste electric appliances are treated at random. <P>SOLUTION: In a cutting method, the output state of laser beam 3 is detected when outputting the laser beam 3 to a workpiece, and a reference value is established, which determines based on the result of detection whether or not the output state of the laser beam 3 is in a normal operational range. When the result of detection exceeds the reference value, the output state of the laser beam 3 is determined to be abnormal, and the output of the laser beam 3 is controlled to stop or guided in a normal operational range. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a waste electrical appliance cutting device for cutting waste electrical appliances using a laser beam, and a recovery method for recycling waste electrical appliances using the cutting device.

  Conventionally, various technologies for recycling waste electrical appliances have been proposed.

  In particular, with the enforcement of the Home Appliance Recycling Law, many methods have been proposed for disassembling home appliances such as refrigerators, washing machines, air conditioners, and televisions, and for selecting and recovering recycled materials from disassembled home appliances. ing.

  For example, the first step of taking out functional parts that can be separated as a lump and separating them from the housing, the second step of disassembling the parts obtained in this first step to the raw material, and each material obtained in this second step There is a method for processing household electrical appliances comprising a third step of increasing the purity and quality by refining the size (see, for example, Patent Document 1).

  Note that recent electrical appliances use members having high functions in order to realize energy saving, and use arithmetic elements having high processing capability as means for realizing high value-added products.

  Examples of the former include a motor using a rare earth magnet, a vacuum heat insulating material in which glass wool is sealed, and examples of the latter include a system LSI.

  In particular, for digital devices whose product cycles are becoming shorter, there are highly functional arithmetic elements that can be sufficiently reused even though they are collected from waste electrical appliances.

In recent years, with the depletion of rare metals becoming a social problem, it is an urgent task to establish a technique for recovering rare metals from waste electrical appliances.
JP 2007-319760 A

  In such a social situation, the method disclosed in Patent Document 1 may be expected to increase the purity of each material by aligning the size of each material such as iron, copper, aluminum, and plastics. Absent.

  However, the conventional method of applying to a crusher is used in a minute amount before reaching a member like a high-performance computing element, that is, as a single component or for a specific part of an appliance. It was difficult to recover the rare metals.

  Therefore, in the recycling process in which a wide variety of waste electrical appliances are randomly processed, the present invention instructs the position for cutting out the specific member from the waste electrical appliance one by one, and by cutting the position according to the instruction content, The purpose is to select and collect specific parts and members efficiently.

  In order to achieve the above object, the cutting device of the present invention includes a laser path storage unit that stores in advance a path along which a laser output unit moves around the workpiece before outputting a laser beam to the workpiece. When the laser output unit outputs a laser beam, a laser output unit drive unit that moves the laser output unit according to the path stored in the laser path storage unit is provided.

  According to the above-mentioned invention, when disassembling waste electrical appliances in a recycling process in which a wide variety of products flow, the waste electrical appliances are instructed to identify the parts necessary for collecting specific parts and specific members one by one. It becomes possible.

  According to the present invention, when disassembling a waste electrical appliance in a recycling process in which a wide variety of products flow, the location required for collecting the specific parts and specific members for each waste electrical appliance is indicated. Therefore, it is possible to cut only a place necessary for taking out a specific part or member which is different for each product.

  As a result, only specific parts and members can be easily selected and collected.

  In the embodiment of the present invention, before outputting a laser beam to a workpiece, a laser path storage unit that stores in advance a path along which the laser output unit moves around the workpiece, and the laser output unit outputs a laser beam. When outputting, a laser output unit driving unit that moves the laser output unit according to the path stored in the laser path storage unit is provided.

  With such a waste electrical appliance cutting device, when disassembling the waste electrical appliance in a recycling process in which a wide variety of products flow, the specific parts and specific parts are collected for each waste electrical appliance. It is possible to indicate a location necessary to do this.

  Therefore, it is possible to cut only a place necessary for taking out a specific part or member that is different for each product, and it becomes possible to easily select and collect only a specific part or member.

  Furthermore, the embodiment of the present invention provides a laser output unit position detection unit that detects the current position of the laser output unit when the laser output unit outputs a laser beam, and the current position of the laser output unit is determined from a predetermined path. A laser output stop unit is provided to stop the output of the laser beam when it comes off.

  If such a waste electrical appliance cutting device is used, when cutting the waste electrical appliance for some reason, the laser beam can be stopped even if the laser beam may deviate from the predetermined path. The part is not cut.

  As a result, a mistake in cutting the main part does not occur, and a specific part or member can be recovered stably.

In addition, the embodiment of the present invention includes a processing distance detection unit that detects a processing distance from the condenser lens to the workpiece surface, and a laser output stop unit that stops the output of the laser beam when the following expression is satisfied. Is.
L2−L3 × 1/2 <L1 <L2 + L3 × 1/2
L1: Processing distance from the condensing lens to the workpiece surface L2: Focal length from the condensing lens to the focal point where the laser beam converges L3: Depth of focus at which the laser beam can process the workpiece The cutting of such waste electrical appliances If the device is used to cut waste electrical appliances, the laser beam can be stopped even if the distance between the laser output section and the workpiece surface is outside the specified range. Can cut waste electrical appliances.

  As a result, it is possible to efficiently cut the main part by laser cutting the waste electrical appliance under appropriate conditions, and it is possible to stably collect specific parts and members.

  Further, the embodiment of the present invention includes a surface temperature detection unit that detects the temperature of the surface of the workpiece, and a laser output control unit that controls the output of the laser. When the temperature of the laser beam exceeds a reference value, the output of the laser beam is controlled so as to decrease so that the temperature of the workpiece surface is within the reference value.

  By using such a cutting device for waste electrical appliances, the laser beam can be suppressed or stopped even if the distance between the laser output part and the surface of the workpiece or the output of the laser beam is out of the predetermined range. Therefore, the waste electrical appliance can be cut with an appropriate laser output.

  As a result, it is possible to efficiently cut the main part by laser cutting the waste electrical appliance under appropriate conditions, and it is possible to stably collect specific parts and members.

  The embodiment of the present invention also includes a first recovery step for recovering specific members, specifically rare metals, noble metals and harmful substances from waste electrical appliances, and iron, copper, aluminum after the first recovery step. And a third recovery step of crushing, selecting and recovering the casing from which at least the specific member and the general-purpose member have been removed.

  By using such a method for recovering waste electrical appliances, at least one of at least rare metals, noble metals, harmful substances, and members other than this resin adhering to the resin can be taken out in advance. It is possible to efficiently recover or remove a useful member with a high purity.

  The rare metals referred to in the present invention are lithium, beryllium, boron, scandium, titanium, vanadium, chromium, manganese, cobalt, nickel, gallium, germanium, selenium, rubidium, strontium, yttrium, zirconium, niobium, molybdenum, palladium. , Indium, antimony, tellurium, cesium, barium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, hafnium, tantalum, tungsten, rhenium, platinum , Thallium and bismuth.

  The noble metal referred to in the present invention refers to gold and silver used for electrodes and the like.

  In addition, the hazardous substance referred to in the present invention refers to lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl, and polybrominated diphenyl ether, which are subject to the RoHS directive.

  In addition, the general-purpose member referred to in the present invention refers to members other than the above, such as iron, copper, aluminum, and resin.

  Hereinafter, an embodiment relating to a waste electrical appliance cutting apparatus according to the present invention and a recovery method for recycling waste electrical appliance using the cutting apparatus will be described with reference to the drawings.

Example 1
First, FIG. 1 shows a process of disassembling a waste electrical appliance according to the present invention, particularly a waste home appliance that is subject to the Home Appliance Recycling Law, and leading the constituent elements to recycling.

  Waste home appliances brought into this process from various locations are brought in by many manufacturers that have been manufactured and sold for many years (S1).

  Currently, the household electrical appliances covered by the Home Appliance Recycling Law are refrigerators, washing machines, air conditioners, and televisions. However, the present invention can be applied not only to other household electrical appliances such as vacuum cleaners and videos, but also to widely used electrical appliances. Similar effects can be obtained even in general.

  In these waste home appliances, parts, rare metals, and members (hereinafter referred to as “specific members”) that are particularly desired to be collected with high purity are approximately determined for each device.

  One example is indium for televisions using liquid crystal panels, silver and indium for televisions using plasma display panels, and neodymium used for motors in washing machines.

  Contrary to the above members, lead used in CRT televisions is a harmful substance that is desired to be recovered with high purity in order to prevent diffusion.

  By the way, although these products have some differences in the product trends from manufacturer to manufacturer or from time to time, the basic configuration has a certain shape.

  Therefore, according to the above table, in order to efficiently obtain a part having the target specific member, the main part of the housing of the waste home appliance is opened. Then, a desired part is taken out from the opening (S2). Details will be described later.

  Thus, the target specific member is recovered from the taken-out component by a method according to the characteristics of the specific member (S3, S4).

  The above is called a 1st collection process.

  Note that the remaining portion after the specific member is collected is supplied to the member sorting step S8 according to the material for further recycling.

  On the other hand, after taking out the specific member in the main part cutting step S2, the waste home appliance is decomposed into a lump for each of, for example, iron, copper, aluminum, and resin in order to recycle other parts (S5). ).

  These lumps are supplied to a member selection step S8 described later in order to increase the purity of each material.

  The above is referred to as a second recovery step.

  Next, after taking out the main components inside, the casing of the waste home appliance is cut in order to recycle the material constituting the casing (S7) and supplied to the member selection step S8.

  At this time, the following steps are performed according to the size of the casing.

  For example, with respect to waste home appliances that are poor in workability for workers to handle alone, such as refrigerators and washing machines in which larger products are preferred, the housing is compressed and deformed to a predetermined thickness (S6). ).

  Thereafter, the casing is cut while maintaining a predetermined thickness (S7).

  Or about the housing | casing which does not have trouble in the operation | work by one worker like a small television and an indoor unit of an air conditioner, it supplies to member selection process S8 through housing | casing crushing process S10.

  The parts and casings supplied to the member sorting step S8 through the various paths described above can be applied to iron, copper, aluminum, and various resins by using a crusher and various sorters as is conventionally done. It is collected as a typical member that is typified and recycled (S9).

  The above is called the third recovery step.

  Next, the flow from the main part cutting step S2 to the specific member recovery S4 will be described in detail with reference to FIGS.

  First, about the cutting device used as one Example of this invention, an outline explanatory drawing is shown in FIG. 2, and the block diagram of the cutting device is shown in FIG.

  The cutting device 1 includes a laser light source 4 serving as a transmission source of the laser 3a and a laser output control unit 5 that controls the output of the laser 3a.

  A condensing lens (not shown) is provided inside the nozzle 12 serving as a laser output unit, and the laser beam 3 is converted into a laser beam 3 by being focused by the condensing lens.

  Further, an arm operation storage unit 7 that functions as a laser path storage unit that stores information input by the arm operation input unit 6 is provided inside the laser body 2, and based on the information in the arm operation storage unit 7. The arm control unit 8 outputs an operation signal to the arm driving unit 10, whereby a predetermined operation can be given to the arm 9.

  That is, the arm drive unit 10 that functions as a laser output unit drive unit transmits a predetermined signal to a joint 11 provided at a key point of the arm 9 to drive the arm 9 and move the nozzle 12 to a predetermined position and direction. Can lead to.

  Next, the nozzle position detection unit 13 which is a laser output unit position detection unit detects whether or not the position of the nozzle 12 is appropriate.

  That is, the information transmitted to the nozzle position detection unit 13 and the information stored in the arm operation storage unit 7 are compared to determine whether the operation is correct or incorrect.

  That is, if the comparison results match, it is determined that the nozzle 12 is performing a predetermined operation. If the comparison results do not match, it is determined that the nozzle 12 is not performing the predetermined operation.

  And when the nozzle 12 is not performing the predetermined | prescribed operation | movement, since the laser output control part 5 functions as a laser output stop part, a laser output is stopped. At the same time, notify the surroundings by sound or light that an error has occurred.

  In addition, there are a method for detecting the position of the nozzle 12 by detecting the distance between the position of the nozzle 12 and the workpiece and a method for detecting the temperature at a predetermined distance from the position of the nozzle 12.

In the former method, in order for the laser beam 3 output from the nozzle 12 to cut the workpiece, the processing distance from the condenser lens to the workpiece surface needs to satisfy the following formula. A machining distance detector that reflects light and measures the distance is used (corresponding to the nozzle position detector 13 in FIG. 3).
L2−L3 × 1/2 <L1 <L2 + L3 × 1/2
L1: Processing distance from the condenser lens to the workpiece surface L2: Focal length from the condenser lens to the focal point where the laser beam converges L3: Depth of focus at which the laser beam can process the workpiece Further, the latter method uses a nozzle If the 12 position is a normal position, for example, the surface temperature of the workpiece detected by the surface temperature detection unit (corresponding to the nozzle position detection unit 13 in FIG. 3) that detects the temperature in a non-contact manner is a predetermined value. The temperature range is stored in advance as a determination reference value of the arm control unit 8, and this determination reference value is compared with a value detected by a surface temperature detection unit (not shown).

  Needless to say, if the comparison result is within a predetermined range, it is determined that the nozzle 12 is performing a predetermined operation. If the comparison result is outside the predetermined range, the nozzle 12 performs a predetermined operation. Judge that it is not.

  When the nozzle 12 is not performing a predetermined operation, the laser output control unit 5 stops the laser output and informs the surroundings by sound or light that an error has occurred.

  A procedure for cutting a main part of a waste home appliance using such a cutting apparatus 1 will be described.

  In general, home appliances have almost the same basic structure regardless of the manufacturer because of the basic principle of each device and the convenience of users.

  In particular, the tendency is remarkable for home appliances that are subject to the Home Appliance Recycling Law.

  For example, a fully automatic washing machine, which was mainstream before the oblique drum type washing machine, is provided with a drive motor just below the washing tub and an electronic control device that controls the washing machine around the switch near the outlet.

  Furthermore, in the case of the outdoor unit 21 of the air conditioner described in detail, an air flow 24 created by the outdoor fan 23 is blown out of the housing 22 on the front surface of the housing 22 as shown in FIG. An outlet 25 is provided for this purpose.

  This is to generate an air flow 24 in order to efficiently exchange heat with a refrigerant (not shown) flowing in the outdoor heat exchanger 26 provided in the housing 22.

  A compressor 27 that compresses the refrigerant is disposed at the bottom of the housing 22 and is connected to the connecting portion 28 via a pipe (not shown).

  Further, an electronic control device 29 for controlling the outdoor unit 21 is installed above the compressor 27.

  The main reason is that the electronic control device 29 is installed above the inside of the housing 22 so that rainwater or the like is not applied even if the indoor unit 21 is installed outdoors.

  These basic configurations are widely adopted except for some products with special specifications.

  Now, in the outdoor unit 21 of the air conditioner described above, an electronic component (not shown) useful for the electronic control device 29 is mounted, and when it is desired to collect the electronic component for reuse, it is shown in FIGS. The following operation is performed using the cutting apparatus 1 shown.

  First, as shown in FIG. 4B, in order to provide a sufficient opening for taking out the electronic control device 29, the laser beam 3 is applied to the position where the electronic control device 29 is assumed to be installed. The irradiation path 30 is temporarily set.

  The temporarily set path 30 is stored in the arm operation storage unit 7 (in FIG. 3) via the arm operation input unit 6 (in FIG. 3).

  In this embodiment, in FIG. 4B, the casing 22 as the workpiece is cut in the order of A, B, C, D, E, F, and G.

  Next, the arm 9 (in FIG. 3) is controlled based on the contents stored in the arm operation storage unit 7 (in FIG. 3), and the nozzle 12 moves around the housing 22 while outputting the laser beam 3.

  When the nozzle 12 finishes the predetermined movement, the main part 22a of the housing is cut off, and the electronic control device 29 installed in the housing 22 can be easily used by using a tool such as a screwdriver or a nipper. Can be taken out.

  Next, a control board 31 as shown in FIG. 5A is housed in the electronic control device 29 taken out as described above.

  The control board 31 has a general-purpose electronic component 32 such as a resistor 32a, a capacitor 32b, a connector 32c, and a general-purpose IC 32d, and a high-performance and valuable valuable electronic component 33 typified by a system LSI mounted on a printed board 34. ing.

  If it is easy to take out only the high-performance and useful valuable electronic component 33, only the valuable electronic component 33 can be reused as a reuse component.

  Alternatively, even if the valuable electronic component 33 cannot be reused, the noble metals such as gold and silver contained in the valuable electronic component 33 can be recovered at a high recovery rate.

  However, for example, the control device 31 is subjected to various processes according to demands required by the electronic control device 29, such as applying silicon to improve moisture resistance. If left in the state, the solder connecting the electronic parts 32 and 33 and the printed circuit board 34 melts, and the electronic parts 32 and 33 cannot be easily separated and recovered.

  Accordingly, it is very time-consuming to take out only the valuable electronic component 33. As a result, the entire control board 31 is incinerated or the precious metals such as gold and silver contained in the control board 31 are collected. The smelting process was to be performed at the smelter, and the recovery rate was low.

  Furthermore, when the content of these noble metals is low, since it cannot be recovered by refining, it may eventually be landfilled.

  However, in recent years, as the product cycle becomes shorter, some electronic devices can be used to recover precious metals and rare metals when high-performance electronic components such as system LSIs can be reused or due to the depletion of rare metals. The necessity of collecting parts is increasing.

  For example, in this embodiment, it is assumed that only valuable electronic components 33 are to be collected.

  Therefore, by using the present invention, the periphery of the nozzle 12 is cut with the laser beam 3 so as to include the valuable electronic component 33.

  As a result, only the main part 35 including the valuable electronic component 33 can be cut out.

  The purpose of removing the valuable electronic component 33 from the main part 35 can be easily achieved by using a solder tank or a tool for removing the electronic component.

  As is clear from the above description, if the cutting device 1 is used, it is possible to easily cut out only the necessary parts one by one from the complicated shapes of a wide variety of waste home appliances.

  As a result, it is possible to collect only the target part with high work efficiency, and thus it is possible to easily collect a specific member such as a valuable part.

  Therefore, it is possible to provide more valuable members for the next process.

  By the way, in the recycling field where it is necessary to deal with a wide variety of waste home appliances, a path to be cut in advance is stored for complex shapes that differ from product to product, and the laser output unit is moved along the stored route. It is important to cut the main part of the object.

  For example, in this embodiment, as shown in FIGS. 6 and 7, the nozzle 12 deviates from a predetermined path 30 a due to the mistake of the person who operates the cutting device 1, or the distance l between the nozzle 12 and the housing 22. However, when an error such as exceeding a predetermined range occurs in the path 30b, the nozzle position detection unit 13 and the arm control unit 8 shown in FIG. 3 determine that a problem has occurred and stop laser output.

  By providing such a preventive measure, it is possible to perform a safe and stable operation even for complicated shapes of a wide variety of waste home appliances.

  This preventive measure is particularly effective when a fiber laser is used as a cutting device, for example, when an operator directly cuts a workpiece.

  Next, the product disassembly process S5 will be described.

  Conventionally, in the product disassembling step S5, the housing of the waste home appliance is disassembled using a screwdriver or a tool such as a nipper, and the parts installed inside the housing are taken out.

  Also in this step, if the above-described cutting device 1 is used, an opening can be easily provided in the housing 22, and the work for taking out the components inside the housing 22 can be performed in a short time.

  Next, the process after taking out the components inside the housing 22 will be described with reference to FIG.

  Of the waste home appliances, if the size is easy for an operator to handle alone, such as a small TV or an air conditioner indoor unit, for example, there will be no particular hindrance to the moving operation of the housing 22 that occurs between each process. .

  However, in fields where the size of products is remarkably large, such as large refrigerators, large washing machines, and large screen televisions, it has been extremely difficult for an operator to handle the case alone.

  As a result, the work efficiency of each worker is reduced, and thus a plurality of workers are required, which is in a state contrary to the gist of the recycling factory that contributes to society widely by suppressing recycling costs.

  Therefore, the case compression step S6 to case cutting step S7, which is an embodiment of the present invention, will be described with reference to FIG.

  In FIG. 8, (A) to (E) are explanatory views of the present process as viewed from the side, and explanatory views of the present process in which (a) to (e) are given to the corresponding processes as viewed from above. Is also described.

  First, in this embodiment, as shown in FIGS. 8A and 8A, a large refrigerator in which a work table 41 is placed on the press table 40 and internal components are removed on the work table 41. The housing 42 is placed.

  Next, from FIG. 8 (B), (b) to FIG. 8 (C), (c), this casing 42 is compressed using a press machine 43 as compression means, and its thickness is possible. Make it as thin as possible.

  Then, in a state where the thickness of the casing 42 is reduced, as shown in FIGS. 8D and 8D, the laser beam 3 is irradiated from the nozzle 12 to cut the casing 42 into a plurality of pieces.

  The laser beam 3 is irradiated toward the slits 44 and 45 provided in the press machine 43 and the work table 41, respectively.

  In this way, the press machine 43 and the work table 41 are not damaged by the laser beam 3. Further, although not shown, a nozzle for irradiating a laser beam from the lower side to the upper side of the press table 40 may be added to cut from both the upper and lower sides.

  As described above, if laser cutting is performed while reducing the thickness of the casing 42 using the press machine 43, the casing 42 can be laser-cut while preventing backlash of the casing 42. The pitch for moving the nozzle 12 up and down in the vertical direction according to the depth is short, and the cutting operation can be performed in a short time.

  The cut state is shown in FIGS. 8E and 8E.

  In this example, two places were cut into three parts.

  As a result, the three divided housings 42a, 42b, and 42c are large enough to be handled by an operator alone. In addition, since it is compressed by the press machine 43, it is easier for the operator to hold, and due to the convenience of the process, even when temporarily storing, it is stacked without gaps without causing unnecessary space, or arranged without gaps. Therefore, the work space can be made wider and more effectively utilized.

  As mentioned above, although detailed description was demonstrated using the outdoor unit of an air-conditioner and the housing | casing of a large sized refrigerator, this invention can be applied besides the television and washing machine which are the object of the household appliance recycling law. In addition to the so-called white goods, it can be applied to information appliances such as personal computers, AV products such as videos, and electrical appliances such as measuring instruments.

  In addition, the above-mentioned collection object may be a target that is not only a valuable specified member but also a harmful substance such as lead, mercury, etc. If the present invention is used, the same applies to the substance. Can be efficiently recovered.

  Alternatively, with respect to the decrease in purity of the resin member that has conventionally occurred by crushing the resin without removing the label attached to the resin, the label attachment portion is cut in advance and the remaining portion is crushed and recovered. Thus, the purity of the resin member can be increased.

  This can prevent not only the label attached to the resin but also the adhesive adhering to the resin and the ink component accompanying printing, and the resin member can be recovered with high purity.

  The purpose of the present invention is to recycle specific members of electrical appliances such as vacuum cleaners, rice cookers, personal computers, mobile phones, etc., and to prevent dispersion of environmentally hazardous substances other than products subject to the above-mentioned Home Appliance Recycling Law It can also be used for the recovery work.

The flowchart which shows the decomposition | disassembly process of the waste household appliances in one Example of this invention Outline explanatory drawing of cutting device in one example of the present invention Block diagram of the cutting device Explanatory drawing explaining a cutting process using the outdoor unit of the air-conditioner in one Example of this invention Explanatory drawing explaining the process of collect | recovering valuable electronic components 33 from the control apparatus 31 in one Example of this invention. Explanatory drawing explaining the protection operation at the time of abnormality occurrence in one Example of this invention Explanatory drawing explaining the protection operation at the time of abnormality occurrence in other one Example of this invention Explanatory drawing explaining the cutting process of the housing | casing in one Example of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cutting device 3 Laser beam 3a Laser 4 Laser light source 5 Laser output control part (Laser output stop part)
7 Arm motion memory (laser path memory)
10 Arm drive unit (Laser output unit drive unit)
12 nozzles (laser output section)
13 Nozzle position detector (Laser output part position detector)
30, 30a, 30b route

Claims (6)

A waste electrical appliance cutting device that outputs a laser generated by a laser light source as a laser beam from a laser output unit having a condenser lens, and before outputting the laser beam to the workpiece, A laser path storage unit that preliminarily stores a path along which the laser output unit moves; and when the laser output unit outputs the laser beam, the laser output unit is configured according to the path stored in the laser path storage unit. An apparatus for cutting waste electrical appliances, characterized in that a laser output unit drive unit for movement is provided. When the laser output unit outputs the laser beam, a laser output unit position detection unit that detects a current position of the laser output unit, and when the current position of the laser output unit is out of the path, The waste electrical appliance cutting apparatus according to claim 1, further comprising a laser output stop unit that stops output of the laser beam. The processing distance detection unit that detects a processing distance from the condenser lens to the surface of the workpiece, and a laser output stop unit that stops the output of the laser beam when the following expression is satisfied. A cutting apparatus for waste electrical appliances according to 1 or 2.
L2−L3 × 1/2 <L1 <L2 + L3 × 1/2
L1: Processing distance from the condenser lens to the workpiece surface L2: Focal length from the condenser lens to the focal point where the laser beam converges L3: Depth of focus at which the laser beam can process the workpiece A surface temperature detection unit that detects the temperature of the workpiece surface and a laser output control unit that controls the output of the laser. The laser output control unit has a temperature of the workpiece surface that exceeds a reference value. 3. The apparatus for cutting waste electrical appliances according to claim 1, wherein control is performed so that the output of the laser beam is lowered so that the temperature of the surface of the workpiece is within a reference value. Using the waste electrical appliance cutting device according to any one of claims 1 to 4, a first recovery step of recovering a specific member from the waste electrical appliance, and a general-purpose member after the first recovery step A recovery method for recycling waste electrical appliances comprising a second recovery step for recovery and a third recovery step for crushing, selecting and recovering a casing from which at least the specific member and the general-purpose member have been removed. 6. The recovery for recycling waste electrical appliances according to claim 5, wherein the specific member is at least one of a rare metal, a noble metal, a hazardous substance, and a member other than the resin adhered to the resin. Method.

Images