JP2002367517A - Dismantling device for cathode-ray tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cathode-ray tube dismantling device assuring an enhanced working efficiency, saving the space, a low noise emission, and a low cost. SOLUTION: The dismantling device is to disassemble a cathode-ray tube of such a structure that a panel part and a funnel part are joined together and a metal band for precluding implosion is wound on the peripheral surface of the panel part, and the arrangement comprises a holding table 110 to hold the cathode-ray tube and rotate it and elevate/sink, metal band removing devices 130a, 130b, 130c, and 140 to restrict the upward and/or downward movement of the metal band on the tube and heat the metal band, processing devices 160 and 170 to give damages to the peripheral surface of the tube, and a heating device 180 to make division into the panel part and funnel part by winding a wire-form heat emitting body round the peripheral surface of the tube and allowing the heat emitting body to emit heat, wherein the metal band removing devices, processing devices, and heating device are installed with certain level differences.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disassembling apparatus for disassembling a cathode ray tube. In particular, the present invention relates to a disassembling apparatus used in a disassembling step performed before collecting used and discarded cathode ray tubes.

[0002]

2. Description of the Related Art For the purpose of effective use of resources and preservation of the global environment, a cathode ray tube such as a waste television is disassembled for each component and subjected to a separate reproduction process.

FIG. 7 shows a structure of a general cathode ray tube. The cathode ray tube 1 is composed of a panel portion 3 having a phosphor screen surface formed on an inner surface and a funnel portion 4 integrated at a joint portion 5, and a metal band 7 for preventing implosion is provided on an outer peripheral surface of the panel portion 3.
Is fitted. At the four corners of the metal band 7 for preventing implosion, metal fittings 8 for attaching a cathode ray tube are fixed by welding. An electron gun 9 is built in the neck of the funnel 4.

In order to disassemble the cathode ray tube 1 constructed as described above, first, the metal band 7 for preventing implosion is removed, and then the panel section 3 and the funnel section 4 are divided near the joint section 5. . Then, the divided implosion-preventing metal band 7, panel section 3, and funnel section 4 are separately collected.

As a method for removing the implosion-preventing metal band 7, as described in Japanese Patent Application Laid-Open No. Hei 10-247455, the implosion-preventing metal band 5 is heated and thermally expanded by a high-frequency induction heating method. The method of removing is known.

As a method of dividing the panel section 3 and the funnel section 4, the following method described in Japanese Patent Application Laid-Open No. H11-154470 is known. First, a scratch (V-shaped groove) is provided on the outer peripheral surface of a portion of the cathode ray tube to be divided. Next, a wire (linear heating element) is wound along the scratch. Next, a high-frequency current is applied to the wire to rapidly heat the wire. This allows
The cathode ray tube receives a thermal shock and is divided at the scratched portion.

[0007]

However, in the conventional disassembling operation of the cathode ray tube, the step of removing the metal band for preventing implosion and the step of dividing the panel portion and the funnel portion are performed by using separate apparatuses. I was doing. Therefore, after passing through the step of removing the implosion-preventing metal band, it is necessary to transfer the cathode ray tube in order to perform the step of dividing the panel portion and the funnel portion.

[0008] For this reason, there is a problem that time is required for transfer and work efficiency is poor. In addition, a device for transfer (for example, a crane or a conveyor) is required, which causes an increase in dismantling cost.

Further, a large work space is required for installing a device for removing the implosion-preventing metal band, a device for dividing the panel portion and the funnel portion, and a transfer device for connecting them. Further, generally, the transfer device often emits a loud noise. Therefore, it is difficult to install dismantling equipment in the vicinity of offices and residential areas where waste cathode ray tubes are mainly generated, and the distance for transporting the waste cathode ray tubes to the dismantling work site is increased, resulting in an increase in recovery costs. I was

Further, prior to performing the step of removing the implosion-preventing metal band and the step of dividing the panel portion and the funnel portion, aligning the center axis of the apparatus for performing each step with the tube axis of the cathode ray tube. (Centering) must be performed. That is, it is necessary to perform the axis alignment for each process, and this also lowers the working efficiency. In addition, a worker is required for each process, which has led to an increase in disassembly costs.

The present invention solves the above-mentioned conventional problems when disassembling a cathode ray tube, improves work efficiency, and saves space.
It is an object of the present invention to provide a low-noise, low-cost dismantling device.

[0012]

The present invention has the following configuration to achieve the above object.

A disassembling apparatus for a cathode ray tube according to the present invention is an apparatus for disassembling a cathode ray tube in which a panel portion and a funnel portion are joined and a metal band for preventing implosion is wound around an outer peripheral surface of the panel portion. Holding the cathode ray tube with the panel portion side down, holding and rotating the cathode ray tube up and down, and the metal band for preventing implosion of the cathode ray tube placed on the holding stand. A metal band removing device that restricts upward and / or downward (preferably upward) movement and heats the implosion preventing metal band, and an outer peripheral surface of a cathode ray tube mounted on the holding table A processing device for applying a scratch to the panel portion and the funnel portion by winding a linear heating element around the outer peripheral surface of the cathode ray tube mounted on the holding table to generate heat. With a heating device to split For example, said metal band extraction device, said processing device and said heating device, characterized in that it is provided with a height difference.

In the disassembly apparatus of the present invention, the metal band removing apparatus, the processing apparatus, and the heating apparatus are installed with a difference in height. Therefore, the installation space for the device is small. After the cathode ray tube to be dismantled is first placed on the holder, the holder is simply moved up and down to remove the metal band and divide the funnel and panel sections (this is further damage processing). And a thermal shock applying step) can be performed continuously, and there is no need to transfer the cathode ray tube every time each step is completed. Therefore,
A transfer device and time for transfer are not required. Also, the axis alignment (centering) of the cathode ray tube only needs to be performed once when the cathode ray tube is first placed on the holding table, and the axis alignment time can be reduced. Thus, the efficiency of dismantling work is improved. In addition, since a transfer device for a cathode ray tube connecting the respective processes is not required, disassembly costs can be reduced, and noise generated by the transfer device can be eliminated. Accordingly, it is possible to install a dismantling device near an office or a residential area, which is a main place where waste cathode ray tubes are generated, and it is possible to shorten a transportation distance of waste cathode ray tubes and reduce a collection cost. Further, the number of workers required for dismantling work can be reduced.

It is preferable that the disassembly apparatus of the present invention further includes a cathode ray tube transfer device for transferring the cathode ray tube to be disassembled onto the holding table. Thereby, the transfer operation of the cathode ray tube to the dismantling device can be automated or semi-automated.

Further, the disassembly device of the present invention preferably further comprises a funnel portion transfer device for transferring the funnel portion after the panel portion and the funnel portion are divided on the holding table. . This makes it possible to automate or semi-automate the transfer operation of the divided funnel portions.

It is preferable that the disassembly device of the present invention further includes a metal band transfer device for transferring the implosion preventing metal band detached from the cathode ray tube. Thereby, the work of transporting the removed metal band can be automated or semi-automated.

At this time, it is preferable that the metal band transfer device forms at least a part of the metal band removal device. The removal and transfer of the metal band by the metal band removal device makes it possible to increase the work efficiency and simplify, reduce the size, and reduce the cost of the equipment.

Further, in the disassembly device of the present invention, the metal band removing device regulates a horizontal position of the cathode ray tube when the cathode ray tube is mounted on the holding table (ie, centering). (Axis alignment) is preferable. Accordingly, it is not necessary to provide a special device for the centering operation, and the equipment can be simplified, downsized, and reduced in cost. In addition, the centering operation is performed by the metal band removing device that performs the metal band removing step, which is the first step of the disassembling operation, so that the centering of the cathode ray tube and the holding of the metal band can be performed simultaneously. The work process can be made more efficient, and work time can be reduced.

Further, the dismantling device of the present invention can be mounted on a movable vehicle. The disassembly device of the present invention
Since the miniaturization is possible and the noise is low as described above, the dismantling work must be carried on the vehicle and transported to the vicinity of the office or residential area where the waste cathode ray tubes are mainly generated. Can be. As a result, the transportation distance of the waste cathode ray tube can be shortened, and the collection cost can be reduced.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view showing the entire structure of a cathode ray tube disassembling apparatus 100 according to the present invention. For the following description, as shown in the figure, X-axis with the Z axis as a vertical direction
A three-dimensional orthogonal coordinate system consisting of YZ is set.

The disassembling apparatus 100 includes a holding table 110 for mounting and holding a cathode ray tube to be disassembled, and an X-ray tube for the cathode ray tube.
Metal band removing devices 130a, 130b for positioning in the Y plane (horizontal plane) and removing the implosion preventing metal band using high frequency induction heating.
130c, 140, a metal band collection container 150 for temporarily storing the removed metal band, groove processing devices 160, 170 for forming a V-shaped groove (scratch scratch) on the outer peripheral surface of the cathode ray tube, and a cathode ray tube. And a heating device 180 that winds a heating wire on the outer peripheral surface to apply a thermal shock.
Hereinafter, these will be described in detail in order.

On the upper surface of the holding table 110, a plurality of suction pads 112 for holding the cathode ray tube by depressurizing the surface of the cathode ray tube on the panel side and holding the cathode ray tube are provided. Holder 11
The size of 0 is smaller than the size of the panel surface of the cathode ray tube to be dismantled. The holding table 110 can rotate in the XY plane and move up and down in the Z-axis direction. FIG.
Indicates a state where the holding table 110 is lowered to the lowest position.

Metal band removing devices 130a, 130
b, 130c, and 140 are installed around the holding table 110 so as to correspond to the four sides of the cathode ray tube, respectively. Metal band removal device 13 installed facing Y-axis direction
0a and 130b are provided by first linear drive mechanisms 132a and 132b movable in the X-axis direction and second linear drive mechanisms 134a and 134b movable in the Y-axis direction.
Each can be moved to a desired position in the horizontal plane. Further, the height can be changed by an actuator (not shown) that expands and contracts in the Z-axis direction. Further, the metal band removing device 130 is installed opposite to the X axis direction.
The c and 140 can be moved to a desired position in the X-axis direction by a linear drive mechanism (not shown) movable in the X-axis direction.

The groove processing devices 160 and 170 are installed facing each other in the X-axis direction. The groove processing device 160 includes an arm 162 extending obliquely, and a disk-shaped diamond cutter (not shown) attached to a tip of the arm 162.
The arm 162 can pivot around the Z-axis at its lower end, and can bend at a plurality of joints provided in the middle thereof. Accordingly, the position of the diamond cutter at the tip of the arm 162 in the X-axis direction and the Z-axis direction can be changed. On the other hand, the groove processing device 170 also has an arm that extends in the X-axis direction at the upper end, and a disk-shaped diamond cutter attached to the tip of the arm. By extending and contracting the arm of the groove processing device 170 in the X-axis direction, the position of the diamond cutter in the X-axis direction can be changed. The diamond cutter of the grooving device 160 and the diamond cutter of the grooving device 170 are installed at substantially the same height, and they are all located at positions higher than the metal band removing devices 130a, 130b, 130c, 140.

The heating device 180 includes a linear support 182 held at the end of the robot arm in the Y-axis direction, and substantially L-shaped L-shaped arms 184a and 184b attached to both ends of the support 182. Having. L-shaped arm 184
a, 184b can pivot in a horizontal plane with respect to the support 182. The support 182 and the L-shaped arm 184a,
184b, the inner dimensions of the substantially rectangular frame
The dimensions are set to be larger than the outer dimensions of the cathode ray tube to be dismantled. The L-shaped arms 184a and 184b have
Reels around which heating wires (linear heating elements) are wound are attached. The heating device 180 is connected to the groove processing device 16.
It is installed at a position higher than 0,170.

In FIG. 1, reference numeral 210 denotes a transfer device (funnel portion transfer device) suspended above the holding table 110. At the lower end of the transfer device 210, a reduced-pressure suction device 212 whose lower end is enlarged in accordance with the shape of the funnel is attached.

Further, although not shown in FIG. 1, a transfer device (crane (cathode ray tube transfer device) 220, see FIG. 2) for transferring the cathode ray tube to be disassembled to the disassembly device 100 is provided. .

The steps of disassembling the cathode ray tube using the disassembly apparatus 100 constructed as described above will be described in order.

First, as shown in FIG.
The cathode ray tube 1 is transported onto the metal band removing device 140 of the dismantling device using The cathode ray tube 1 is conveyed by hanging the cathode ray tube attachment brackets 8 at the four corners of the metal band 7 for preventing implosion with hooks of the crane 220 as shown in the figure. In FIG. 2, for simplification of the drawing, illustration of unnecessary components in this work is omitted.

The metal band removing device 140 includes a pair of induction heating devices 142a, 142 arranged side by side in the Y-axis direction.
42b. Induction heating devices 142a are provided with heating plates 143a, 143 arranged substantially parallel to the Y axis at a predetermined distance.
Similarly, the induction heating device 142b includes a heating plate 143b, which is disposed substantially parallel to the Y axis at a predetermined distance.
144b. Each heating plate 143a, 144a, 14
An induction heating coil is built in 3b and 144b. The heating plates 143a, 144a, 143b, 144b can be turned around the Y axis, and when the cathode ray tube 1 is installed, as shown in FIG.
a, 143b, and 144b are made substantially parallel to the YZ plane.

The cathode ray tube 1 suspended by the crane 220 has the panel side facing the holding table 110 and the metal band 7 on the lower long side in the suspended state.
Between the heating plates 143a, 144a and between the heating plates 143b, 1
44b so that the induction heating device 142
a, 142b. Next, the crane 220
Is moved in the X-axis direction, and the heating plates 143a, 144
While rotating a, 143b, and 144b around the Y axis,
The cathode ray tube 1 is slowly turned to the holding table 110 side. Thereby, the cathode ray tube 1 is attached to the suction pad 1 on the holding table 110.
12 is placed on the panel 12 with the panel portion facing down.

Next, toward the cathode ray tube 1 on the holding table 110, the metal band removing devices 130a, 130b,
130c is approached. As shown in FIG. 3, the metal band removing device 130c has an induction heating device 132
c. The induction heating device 132c has a heating plate 133c parallel to the XY plane and a heating plate 134c parallel to the Y axis and rotatable around the Y axis. Heating plates 133c, 13
An induction heating coil is built in 4c. Before the cathode ray tube 1 is placed on the holding table 110, the heating plate 134c
Is substantially parallel to the YZ plane, and after the cathode ray tube 1 is placed on the holding table 110, the heating plate 134c is turned so as to be parallel to the XY plane. As a result, the cathode ray tube 1
Is sandwiched between the heating plates 133c and 134c. In FIG. 3, for simplification of the drawing, illustration of unnecessary components in this work is omitted.

Although not shown, the metal band removing devices 130a and 130b are also used as the metal band removing devices 130a and 130b.
It has the same configuration as c and operates similarly.

Next, the center of rotation of the holding table 110 in the XY plane and the axis of the cathode ray tube 1 are aligned (centered). The centering is performed by the metal band removing devices 130a, 130b, 1 installed along the four sides of the cathode ray tube 1.
This is automatically performed by moving 30c and 140 to the holding table 110 side, respectively. That is, the metal band removing devices 130c are arranged such that the distance from the rotation center side end face of the holding table 110 to the center of rotation of each of the heating plates of the metal band removing devices 130c and 140 facing each other in the X-axis direction is equal. , 140 can be moved in the X-axis direction to position the cathode ray tube 1 in the X-axis direction. Similarly, the position of the cathode ray tube 1 in the Y-axis direction can be adjusted by moving the metal band removing devices 130a and 130b facing each other in the Y-axis direction in the Y-axis direction. The movement of the metal band removing devices 130c and 140 in the X-axis direction is performed by a linear drive mechanism (not shown). The movement of the metal band removing devices 130a and 130b in the Y-axis direction is performed by the second linear drive mechanisms 134a and 134b (FIG. 1).
Reference).

The operation of sandwiching the metal band 7 between the pair of heating plates from above and below and the centering operation of the cathode ray tube can be performed in parallel. At this time, the height of the holding table 110 can be adjusted as appropriate.

After the above operation is completed, the suction pad 112 of the holding table 110 is operated. Thereby, as shown in FIG. 3, the cathode ray tube 1 is firmly held on the holding table 110.

In this state, the metal band removing device 13
A high-frequency current is applied to the induction heating coils in the respective heating plates 0a, 130b, 130c, and 140 (for example, 180 V, 2
00A, 1500-2000 Hz, 15 seconds). Thereby, the metal band 7 is rapidly heated to 350 to 500 ° C. and expands. In this state, the holding table 110 is raised.
The metal band 7 is a metal band removing device 130a, 13
Since the heating plates 0b, 130c, and 140 are sandwiched from above and below, they cannot move. Therefore, the cathode ray tube 1 is raised with the metal band 7 left. Thus, the metal band 7 can be separated from the cathode ray tube 1 in a state where the heating plates of the metal band removing devices 130a, 130b, 130c, 140 are gripped.

Next, the cathode ray tube 1 is further raised to a predetermined height as it is, and as shown in FIG.
A V-shaped groove is formed on the outer peripheral surface of the cathode ray tube 1 using 0,170. In FIG. 4, for simplification of the drawing, illustration of unnecessary components in this work is omitted. The groove processing device 160 has a disk-shaped diamond cutter 165 at the tip of the arm 162. Groove processing device 1
70 also has a disk-shaped diamond cutter 175 at the tip of an arm 172 extending in the X-axis direction at the upper end. These diamond cutters 165 and 175 are held at the same height and rotated in the XY plane (for example, several thousand to several tens of thousands of rpm).
m), while being in contact with the vicinity of the joint 5 of the cathode ray tube 1. Then, by rotating the cathode ray tube 1 around the tube axis, the entire circumference of the cathode ray tube 1 has a depth of 0.1 to 0.5 mm.
Process a V-shaped groove to a degree. At this time, the diamond cutters 165 and 175 are displaced in the X-axis direction following the rotation of the cathode ray tube 1 so that the diamond cutters 165 and 175 are always in contact with the outer peripheral surface of the cathode ray tube 1. At the time of V-shaped groove processing, it is preferable to cool the processed portion by applying water, cold air, or the like. Instead of the V-shaped groove processing, a scratch may be applied to the entire outer periphery of the cathode ray tube 1 using a diamond weight as in the case of glass cutting.

Thereafter, the rotation of the cathode ray tube 1 is stopped, the diamond cutters 165 and 175 are separated from the cathode ray tube 1, and the cathode ray tube 1 is set at the same height as the V-shaped groove and the heating wire of the heating device 180. And raise it further.

The heating device 180 connects the heating wire to the cathode ray tube 1
The operation of wrapping around is described with reference to FIG. FIG.
As shown in (A), the heating device 180 includes a linear support 182 held in the Y-axis direction by robot arms 181a and 181b, and a substantially L-shaped L attached to both ends of the support 182. 184a and 184b. The L-shaped arms 184a and 184b include reels 186a and 186b, respectively. One heating wire 18
8 are wound around reels 186a and 186b, respectively, so that the heating wire 188 is connected to the reel 186a.
a and 186b are stretched with a predetermined tension. Reel 18
6a and 186b rotate to unwind the heating wire 188.
It can be wound up and has an L-shaped arm 184.
a, 184b can also be moved from the root to the free end.

As shown in FIG. 5A, the L-shaped arm 186
a, 186b are opened and the reels 186a, 186b are in the vicinity of the bases of the L-shaped arms 184a, 184b,
The cathode ray tube 1 is raised until the V-shaped groove and the heating wire 188 are almost at the same height. Next, by operating the robot arms 181a and 181b, the heating device 180 is moved in the X-axis direction to approach the cathode ray tube 1, and the heating wire 1 is moved.
88 is brought into contact with one side of the cathode ray tube 1. At this time, the heating wire 188 is accommodated in the V-shaped groove.

The heating device 180 is moved closer to the cathode ray tube 1 so that the support 182 contacts the outer surface of the cathode ray tube 1, and the L-shaped arms 184a, 184b are pivoted so that the free ends of the L-shaped arms 184a, 184b come into contact. Let it close. Then, as shown in FIG.
a and 186b are moved to the free ends of the L-shaped arms 184a and 184b while unwinding the heating wire 188. As a result, the heating wire 188 is brought into close contact with the predetermined tension along the V-shaped groove over substantially the outer periphery of the cathode ray tube 1.

In parallel with this, as shown in FIG. 6, the upper transfer device 210 is lowered, and
2 is placed over the neck of the funnel and adsorbed under reduced pressure.

In this state, a high-frequency current is applied to the heating wire 188 via the reels 186a and 186b (for example, 1
80V, 200A, 1500-2000Hz, 15 seconds). As a result, the heating wire 188 becomes 350-500.
C., and the thermal shock is applied to the V-shaped groove of the cathode ray tube 1. As a result, cracks occur in the thickness direction of the glass of the cathode ray tube along the V-shaped groove, and the funnel portion and the panel portion are divided at the V-shaped groove portion. It is preferable to apply cold air or cold water of 10 ° C. or less to the V-shaped groove immediately after the application of the thermal shock, since crack formation is promoted. In the above, the heating wire 188 is made of a metal member, and may be in the form of a wire, a knitted structure, a tape, or the like. For example, a nichrome wire can be used.

After the division, the funnel portion is sucked by the transfer device 210, lifted, and transported to a predetermined position. Next, the suction of the suction pad 112 of the holding table 110 is released,
The remaining panel is transferred to a predetermined location. Next, the holding table 110 is lowered to the lowest position. Then, the metal band removing devices 140 and 130c are moved in a direction away from the holding table 110, separated from the metal band 7, and the metal band 7 is held only by the metal band removing devices 130a and 130b. Then, the metal band removing device 130
a, actuator installed on 130b (not shown)
The metal band removal devices 130a and 130b
The metal band 7 is lifted by extending in the axial direction. In this state, the metal band removing devices 130a and 130b are moved in the X-axis direction to the position of the metal band collection container 150, and the metal band removing devices 130a and 130b are further moved in the Y-axis direction in a direction away from each other. The metal band 7 is dropped into the metal band collection container 150.

As described above, the funnel portion, the panel portion, and the metal band constituting the cathode ray tube 1 can be separated and collected.

As described above, according to the present invention, after the cathode ray tube to be dismantled is first mounted on the holding base 110, the holding base 110 is gradually raised, so that the metal band And the dividing step of the funnel portion and the panel portion (which further comprises a V-shaped groove forming step and a thermal shock applying step) can be continuously performed. Therefore, it is not necessary to transfer the cathode ray tube every time each step is completed. Therefore, time for transfer is not required. Further, since it is not necessary to transfer the cathode ray tube during the process, the axis alignment (centering) of the cathode ray tube may be performed only once when the cathode ray tube is first placed on the holding table 110. Therefore, the time required for axis alignment can be reduced as compared with the related art. Thus, the efficiency of dismantling work is improved.

Further, since a transfer device for a cathode ray tube connecting the respective steps is not required, disassembly costs can be reduced, and noise generated by the transfer device can be eliminated.

Further, since the metal band removing device, the V-shaped groove processing device, and the heating device are arranged in this order from the bottom to the top around the holding part 110, it is necessary to arrange an operator for each device. And the installation space of the device is small. Therefore, coupled with the above-mentioned reduction in noise, it is possible to install dismantling equipment near office and residential areas where waste cathode ray tubes are mainly generated, shortening the transportation distance of waste cathode ray tubes and reducing collection costs. Can be done.

The dismantling apparatus 100 shown in the above embodiment
Is so small that it can be mounted on mobile vehicles such as trucks and trailers, for example. As a result, the dismantling work of the cathode ray tube can be immediately performed at or near the place where the discarded television picture tube or computer display is collected.

In the present invention, the configurations of the metal band removing device, the processing device (V-shaped groove processing device), and the heating device are not limited to the above-described embodiment. The present invention is characterized in that after the cathode ray tube is first placed on one holding table, the holding table is moved up and down to perform each dismantling process. Therefore, well-known devices other than the above examples can be applied as the metal band removing device, the processing device, and the heating device.

The arrangement of the devices in the vertical direction is not limited to the above example. In the above-described example, the configuration in which the holding table is gradually raised in accordance with the progress of the disassembly process has been described, but the configuration in which the holding table is gradually lowered may be reversed. However, at least in the metal band removal device,
It is preferable to move the cathode ray tube upward with the metal band held by the heating plate. When moving the cathode ray tube downward, it is difficult to remove the metal band only by the weight of the cathode ray tube alone, and therefore, a separate device for applying a downward load to the cathode ray tube is required.

[0055]

As described above, according to the present invention, the metal band removing device, the processing device, and the heating device are installed with a difference in elevation. Therefore, the installation space for the device is small. After the cathode ray tube to be dismantled is first placed on the holder, the holder is simply moved up and down to remove the metal band and divide the funnel and panel sections (this is further damage processing). And a thermal shock applying step) can be performed continuously, and there is no need to transfer the cathode ray tube every time each step is completed. Therefore, the transfer device and the time for the transfer are not required. Also,
Axis alignment (centering) of the cathode ray tube is sufficient only once when the cathode ray tube is first placed on the holding table, and the axis alignment time can be reduced. Thus, the efficiency of dismantling work is improved.
In addition, since a device for transferring a cathode ray tube connecting the respective steps is not required, disassembly costs can be reduced, and noise generated by the transfer device can be eliminated. Therefore, it is possible to install a dismantling device near an office district or a residential district, which is a main place where waste cathode ray tubes are generated, and it is possible to shorten the transportation distance of waste cathode ray tubes and reduce the collection cost. Further, the number of workers required for dismantling work can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire configuration of a cathode ray tube disassembling apparatus of the present invention.

FIG. 2 is a perspective view showing a state in which the cathode ray tube is mounted on the cathode ray tube disassembly apparatus of the present invention.

FIG. 3 is a side view showing a state where the metal band removing device centers the cathode ray tube and holds the metal band for preventing implosion.

FIG. 4 is a side view showing a state in which the groove processing device performs V-shaped groove processing on the outer peripheral surface of the cathode ray tube.

5 (A) and 5 (B) are plan views showing the operation of the heating device for winding a heating wire around a cathode ray tube.

FIG. 6 is a side view showing a state where a thermal shock is applied to the cathode ray tube by the heating device.

FIG. 7 is a partially cutaway side view showing the configuration of the cathode ray tube.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cathode ray tube 3 Panel part 4 Funnel part 5 Joining part 7 Metal band for implosion prevention 8 Bracket for attaching a cathode ray tube 9 Electron gun 100 Disassembly device 110 Holder 112 Suction pad 130a, 130b, 130c, 140 Metal band removal device 132a , 132b First linear drive mechanism 134a, 134b Second linear drive mechanism 132c, 142a, 142b Induction heating device 133c, 134c, 143a, 144a, 143b,
144b Heating plate 150 Metal band collection container 160, 170 Groove processing device 162, 172 Arm 165, 175 Diamond cutter 180 Heating device 181a, 181b Robot arm 182 Support 184a, 184b L-arm 186a, 186b Reel 188 Heating wire 210 Transfer Equipment 212 Decompression adsorption equipment 220 Crane

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroyuki Shirato 1006 Kadoma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F term (reference) 5C012 AA02

Claims (7)

[Claims] 1. A panel part and a funnel part are joined,
An apparatus for disassembling a cathode ray tube in which an implosion preventing metal band is wound around an outer peripheral surface of the panel portion, wherein the cathode ray tube is held with the panel portion side down, and the cathode ray tube is A holding table to be rotated and moved up and down, and restricting upward and / or downward movement of the implosion preventing metal band of the cathode ray tube mounted on the holding table, A metal band removing device to be heated; a processing device for scratching the outer peripheral surface of the cathode ray tube mounted on the holding table; and a linear heating element wound around the outer peripheral surface of the cathode ray tube mounted on the holding table. By causing the linear heating element to generate heat,
A heating device that divides the panel portion and the funnel portion, wherein the metal band removing device, the processing device, and the heating device are installed with a height difference. Dismantling device for cathode ray tube. 2. The apparatus for disassembling a cathode ray tube according to claim 1, further comprising a cathode ray tube transfer device for transferring a cathode ray tube to be disassembled onto the holding table. 3. The cathode ray tube disassembling apparatus according to claim 1, further comprising a funnel unit transfer device for transferring the funnel unit after the panel unit and the funnel unit are divided on the holding table. . 4. The apparatus for disassembling a cathode ray tube according to claim 1, further comprising a metal band transfer device for transferring the metal band for preventing implosion removed from the cathode ray tube. 5. The apparatus for disassembling a cathode ray tube according to claim 4, wherein the metal band transfer device forms at least a part of the metal band removal device. 6. The disassembly apparatus for a cathode ray tube according to claim 1, wherein the metal band removing device regulates a horizontal position of the cathode ray tube when placing the cathode ray tube on the holding table. 7. The disassembly apparatus for a cathode ray tube according to claim 1, which is mounted on a movable vehicle.