JP2020182995A - Workbench for thin television decomposition and turnover device for thin television - Google Patents

Abstract

To provide a workbench making it easier to decompose a large-sized thin television.SOLUTION: A workbench 2 includes a stage 8 for mounting a thin television T thereon, a tilting device 10 for tilting the stage 8 around one end side thereof, and a vertically movable rotary table 4 that is disposed in the stage 8 and rotates the thin television T. The stage 8 includes a plurality of rollers 7. At least one of the rollers 7 is switched between a fixed state and an unfixed state by a brake gear 5.SELECTED DRAWING: Figure 2

Description

The present invention relates to a workbench and a reversing device used when disassembling a flat-screen television.

Flat-panel TVs are being dismantled at the recycling plant. To disassemble the flat-screen TV, disassemble the back side of the flat-screen TV (remove the rear cover, substrate, etc. of the flat-screen TV), turn the flat-screen TV upside down, and disassemble the front side of the flat-screen TV (LCD panel, backlight, optical sheet of the flat-screen TV). It is carried out through each step of removal of all parts such as).

Further, a workbench is used when disassembling the back side and the front side of the flat-screen TV (see Patent Document 1). A flip device is used when flipping a flat-screen TV upside down (see Patent Document 2). The conventional reversing device and the workbench will be described in order below.

FIG. 6 shows a perspective view of the conventional workbench 21. The workbench 21 includes a stage 21a on which a flat-screen television is mounted. The stage 21a is tilted by the tilting device so as to face the operator around one end side thereof. By tilting the flat-screen TV, screws can be easily removed and work efficiency is improved.

FIG. 7 shows a conventional reversing device 22. FIG. 7A is a plan view of the reversing device 22, and FIG. 7B is a vertical sectional view. As shown in FIG. 7A, the reversing device 22 includes a plurality of first rollers 23a cantilevered and supported by a first arm 23 on one end side of the gantry 25, and a second arm on the other end side of the gantry 25. A plurality of second rollers 24a, which are cantilevered and supported by 24, are provided. The first roller 23a is longer than the second roller 24a, and the first roller 23a and the second roller 24a are arranged in a comb-teeth shape. As shown in FIG. 7B, the cylinders 26 and 27 (see FIG. 7A) rotate the first arm 23 and the second arm 24 to form the first roller 23a and the second roller 24a in a V shape. When crossed with, the flat-screen TV T tilts while resting on the first roller 23a. When the flat-screen TV T mounted on the first roller 23a is pushed toward the second roller 24a by the blade 28, the flat-screen TV T is inverted and transferred to the second roller 24a. In this state, when the first roller 23a and the second roller 24a are returned to their original positions, the flat-screen TV T is inverted.

Japanese Patent No. 4932943 Japanese Unexamined Patent Publication No. 4771556

However, with the increase in size of flat-screen TVs in recent years, the number of large-sized flat-screen TVs is increasing even in recycling plants. A small flat-screen TV can be disassembled without any problem using a conventional workbench and a reversing device, but when an attempt is made to disassemble a large flat-screen TV using a conventional workbench and a reversing device, the following problems arise.

Since a large flat-screen TV is heavy, heavy work is required to place the large flat-screen TV on a workbench or a reversing device or rotate it on the workbench.

Even if an attempt is made to flip a large flat-screen TV using a conventional reversing device, the large flat-screen TV is placed on a pedestal and cannot be flipped upside down.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a workbench and a reversing device capable of easily disassembling a large flat-screen television.

In order to solve the above problems, the workbench for disassembling a flat-screen TV of the present invention is provided with a stage on which the flat-screen TV is placed, a tilting device that tilts the stage around one end side thereof, and the stage. A work for disassembling a flat-screen TV, which comprises a rotary table that can be raised and lowered to rotate the flat-screen TV, the stage is provided with a plurality of rollers, and at least one of the plurality of rollers is switched between a fixed state and a non-fixed state by a braking device. It is a platform.

The flat-screen TV reversing device of the present invention includes a lower stage, an upper stage facing the lower stage, and a flat-screen TV provided on the upper stage and inserted between the lower stage and the upper stage. A work presser that is pressed against the lower stage and a rotating device that inverts the lower stage and the upper stage upside down are provided. In a state where the flat-screen TV is pressed against the lower stage by the work presser, the lower stage and the upper stage are pressed by the rotating device. This is a flat-screen TV reversing device that flips the stage upside down, then separates the work retainer from the lower stage, and mounts the flat-screen TV on the upper stage.

According to the workbench of the present invention, since the stage of the workbench includes a plurality of rollers, it becomes easy to mount the flat-screen TV on the workbench. Further, the flat-screen TV can be fixed at a position where it is easy to work by moving the flat-screen TV to a position where it is easy to work with the tilting device and the rotary table, and then fixing at least one of the plurality of rollers with the brake device. .. Therefore, the dismantling work on the stage of the workbench becomes easy.

According to the reversing device of the present invention, a flat-screen TV is sandwiched between the lower stage and the upper stage, and the lower stage and the upper stage are turned upside down, so that even a large flat-screen TV can be turned upside down. .. Further, since the flat-screen TV is pressed against the lower stage by the work presser during the upside down, it is possible to prevent the flat-screen TV from going wild during the upside down.

It is a top view of the dismantling device of this embodiment. It is a detailed view of the workbench of this embodiment (FIG. 2 (a) is a plan view, FIG. 2 (b) is an operation diagram of a handle of a brake device, and FIG. 2 (c) is from the D direction of FIG. 2 (a). A side view, FIG. 2 (d) is a front view of FIG. 2 (a) as viewed from the C direction). It is a tilting operation diagram of the stage of the workbench of this embodiment (FIG. 3 (a) shows the horizontal position of the stage, FIG. 3 (b) shows the intermediate position of the stage, and FIG. 3 (c) shows the tilted position of the stage). .. It is a side view of the reversing device of this embodiment. It is an operation diagram of the reversing device of this embodiment. It is a perspective view of a conventional workbench. It is a figure which shows the conventional reversing apparatus (FIG. 7A is a plan view, FIG. 7B is a sectional view taken along the line bb of FIG. 7A.

Hereinafter, a workbench for disassembling a flat-screen television (hereinafter, simply referred to as a workbench) and a reversing device according to an embodiment of the present invention will be described in detail based on the accompanying drawings. However, the workbench and the reversing device of the present invention can be embodied in various forms, and are not limited to the embodiments described in the present specification. The present embodiment is provided with the intention of allowing those skilled in the art to fully understand the scope of the invention by making sufficient disclosure of the specification.
(Dismantling device)

FIG. 1 is a plan view of the dismantling device 1 according to the embodiment of the present invention. The dismantling device 1 includes a workbench 2 and a reversing device 3.

The flat-screen TV T is transported to the work place by a trolley (not shown), and is placed on the workbench 2 from the trolley. On the workbench 2, the back side of the flat-screen TV T is first disassembled. At this time, the flat-screen TV T is disassembled by fixing the flat-screen TV T at a position where it is easy to work by using the tilting device 10, the rotary table 4, and the brake device 5 (see FIG. 2) of the workbench 2. After disassembling the back side of the flat-screen TV T, the flat-screen TV T is moved from the workbench 2 to the reversing device 3. Then, the flat-screen TV T is inverted by the inversion device 3. After reversing, the flat-screen TV T is moved from the reversing device 3 to the workbench 2 again. Then, the front side of the flat-screen TV T is disassembled on the workbench 2. By disassembling the back side and the front side of the flat-screen TV T, the disassembly of all the parts of the flat-screen TV T is completed. By using the workbench 2 and the reversing device 3 of the present embodiment, the flat-screen TV T can be disassembled by one worker.

The rotation center 3c of the reversing device 3 is orthogonal to the transport direction 2a of the flat-screen TV T on the workbench 2. This is so that the rotating device 15 arranged on the rotation center 3c does not interfere with the flat-screen TV T. When the rotation center 3c of the reversing device 3 is parallel to the transport direction 2a, it is necessary to arrange the rotating device 15 between the work table 2 and the reversing device 3, which hinders the movement of the flat-screen TV T.

The long side of the flat-screen TV T on the workbench 2 is directed toward the worker. The operator rotates the flat-screen TV T by the rotary table 4 by 90 ° in a horizontal plane on the workbench 2, and then puts the flat-screen TV T into the reversing device 3. As a result, the rotation center 3c of the reversing device 3 and the longitudinal direction of the flat-screen TV T become parallel, and the flat-screen TV T can be reversed even if the height of the reversing device 3 is lowered.

16 and 17 are fences for preventing intrusion. An area sensor is arranged at the inlet (fence 17) of the reversing device 3. When the worker and the flat-screen TV T block the area sensor, the reversing device 3 is stopped in an emergency to give priority to the safety of the worker.
(Workbench)

FIG. 2 shows a workbench 2 according to an embodiment of the present invention. 2 (a) is a plan view, FIG. 2 (b) is an operation view of the handle 5a of the brake device 5, FIG. 2 (c) is a side view of FIG. 2 (a) as viewed from the D direction, and FIG. 2 (d). 2 (a) shows a front view seen from the C direction.

The workbench 2 includes a stage 8, a brake device 5, a rotary table 4, and a tilting device 10. The configuration of the workbench 2 will be described below.

The stage 8 includes a pair of frames 6 and a plurality of rollers 7. The frame 6 is supported by the gantry 9 (see FIG. 2D, the gantry 9 is indicated by a chain double-dashed line). The roller 7 includes a long roller 7a supported by the frame 6 and a short roller 7b supported by the frame 6. The axial length of the long roller 7a is longer than that of the short roller 7b. The short roller 7b is arranged in the vicinity of the rotary table 4 so as to avoid interference with the rotary table 4. The long roller 7a can rotate freely.

The short roller 7b shown by the diagonal line in FIG. 2A is switched between a fixed state and a non-fixed state by the brake device 5. The brake device 5 includes handles 5a and 5b. As shown in FIG. 2B, when the handles 5a and 5b are turned, the short roller 7b is switched between the fixed state and the non-fixed state. In the fixed state, the short roller 7b cannot rotate. In the non-fixed state, the short roller 7b can rotate freely. When the short roller 7b is fixed, the flat-screen TV T on the stage 8 is fixed by the short roller 7b, that is, it is possible to prevent the flat-screen TV T from laterally moving when tilted or the like.

The configuration of the brake device 5 is not particularly limited, and may include, for example, a camshaft connected to the handles 5a and 5b, and a brake shoe that operates so as to press the short roller 7b by the camshaft. .. In this embodiment, the brake device 5 is manually operated, but the brake device 5 may be operated by using a drive source such as an air cylinder, a hydraulic cylinder, or a motor.

The rotary table 4 is arranged in the stage 8. The rotary table 4 is rotatably supported around a vertical axis by a gantry 9. The configuration of the rotary table 4 is not particularly limited. For example, the rotary table 4 may be freely rotated on the gantry 9, and the rotary table 4 may be manually rotated, or the rotary table 4 may be pneumatic. It may be composed of a table, an electric table, or the like so that the rotary table 4 automatically rotates.

The rotary table 4 can be raised and lowered with respect to the gantry 9. The raising and lowering of the rotary table 4 is controlled by, for example, a foot switch. As shown in FIG. 2C, when the rotary table 4 is in the raised position, the rotary table 4 is located above the stage 8 and the flat-screen TV T is supported by the rotary table 4. On the other hand, as shown in FIG. 2D, when the rotary table 4 is in the lowered position, the rotary table 4 is located below the stage 8 and the flat-screen TV T is supported by the stage 8. By rotating the flat-screen TV T by the rotary table 4, the operator can stand at the same place and disassemble the flat-screen TV T.

As shown in FIG. 2D, the stage 8 is supported by the gantry 9 so as to be tiltable about a support shaft 8a on one end side thereof. The tilting device 10 is composed of, for example, an air cylinder. The tilting device 10 is expandable and contractible, one end portion 10a thereof is rotatably connected to the frame 6, and the other end portion 10b is rotatably connected to the gantry 9. By expanding and contracting the tilting device 10, the stage 8 tilts around the support shaft 8a. The configuration of the tilting device 10 is not particularly limited, and the tilting device 10 may be composed of, for example, a hydraulic cylinder, a motor, a gear, or the like.

FIG. 3 shows a tilting operation diagram of the stage 8. The stage 8 is tilted from the horizontal position shown in FIG. 3A, through the intermediate position shown in FIG. 3B, to the tilted position of, for example, 60 ° shown in FIG. 3C. In the tilted position, the stage 8 is tilted so that the operator side is facing down. A rod-shaped fall prevention member 19 for preventing the flat-screen TV T from falling is detachably attached to the frame 6 of the stage 8. A plurality of fall prevention members 19 are provided in a direction orthogonal to the paper surface of FIG. 3 according to the size of the flat-screen TV T. The frame 6 is formed with a plurality of screw holes into which the fall prevention member 19 is screwed. When the stage 8 is tilted, the worker attaches the fall prevention member 19 to the frame 6, and when the rotary table 4 is rotated in the horizontal plane, the fall prevention member 19 is removed from the frame 6 so as not to be an obstacle. Although the rotary table 4 keeps a constant position while the stage 8 is tilted, the rotary table 4 may be tilted together with the stage 8.

The configuration of the workbench 2 of the present embodiment has been described above. According to the workbench 2 of the present embodiment, the following effects are obtained.

Since the stage 8 of the workbench 2 includes a plurality of rollers 7, it becomes easy to mount the flat-screen TV T on the workbench 2. Further, after the flat-screen TV T is moved to a position where it is easy to work by the tilting device 10 and the rotary table 4, at least one of the plurality of rollers 7 is fixed by the brake device 5, so that the flat-screen TV T can be easily worked. Can be fixed to. Therefore, the dismantling work of the workbench 2 on the stage 8 becomes easy.

Since the brake device 5 fixes the short roller 7b near the rotary table 4, the vicinity of the center of the flat-screen TV T can be fixed, and the fixing of the flat-screen TV T is stable.
(Reversing device)

FIG. 4 shows a side view of the reversing device 3 according to the embodiment of the present invention. 2 is a workbench and 3 is a reversing device. The reversing device 3 includes a lower stage 11, an upper stage 12, a work retainer 13, and a stopper 14.

The lower stage 11 includes a frame 11a and a plurality of lower rollers 11b supported by the frame 11a. The lower roller 11b can rotate freely.

The upper stage 12 is arranged above the lower roller 11b with a predetermined interval. The upper stage 12 faces the lower stage 11. The upper stage 12 includes a frame 12a and a plurality of upper rollers 12b supported by the frame 12a. The upper roller 12b can rotate freely.

The frame 11a of the lower stage 11 and the frame 12a of the upper stage 12 are fixed to each other by the fixing member 20. The distance between the lower stage 11 and the upper stage 12 is set according to the thickness of the flat-screen TV T. Since the back side of the flat-screen TV T is disassembled before the flat-screen TV T is inserted into the reversing device 3, the thickness of the flat-screen TV T is thin at this point.

The height of the lower stage 11 is equal to the height of the stage of the workbench 2. A flat-screen TV T is inserted from the workbench 2 between the lower stage 11 and the upper stage 12.

The upper stage 12 is provided with a work retainer 13 that presses the flat-screen TV T against the lower stage 11. As shown in FIG. 1, the work retainers 13 are provided at, for example, four locations on the upper stage 12, but the arrangement and number of the workpiece retainers 13 are not limited. The work retainer 13 includes a pad 13a at the tip that contacts the flat-screen TV T, and a shaft 13b that is guided up and down to the upper stage 12. The work retainer 13 is moved up and down by a drive source such as an air cylinder. When the work retainer 13 is in the raised position, the flat-screen TV T can be taken in and out between the lower stage 11 and the upper stage 12.

The rotating device 15 rotates the lower stage 11 and the upper stage 12 by 180 ° about the horizontal axis and turns them upside down. The rotating device 15 is supported by a gantry 16 shown by a chain double-dashed line in the figure. The configuration of the rotating device 15 is not particularly limited, and may be configured by, for example, an pneumatic table, an electric table, a motor and gears, and the like.

As shown in FIG. 1, in a plan view, the lower stage 11 and the upper stage 12 have a substantially rectangular shape, and the rotation center 3c (horizontal axis) of the rotating device 15 is the long side of the lower stage 11 and the upper stage 12. It is parallel.

A stopper 14 for opening and closing between the end of the lower stage 11 and the end of the upper stage 12 is provided. Like the work retainer 13, the stopper 14 is moved up and down by a drive source such as an air cylinder. As shown in FIG. 1, the stoppers 14 are provided at, for example, two locations, one at the end of the lower stage 11 and the other at the end of the upper stage 12, but the arrangement and number of stoppers 14 are not limited. Further, the stopper 14 may be provided on only one of the lower stage 11 and the upper stage 12.

A tray (not shown) is provided below the reversing device 3. Screws or the like that fell during the reversal of the flat-screen TV T fall on the tray. The tray is provided to collect the dropped screws and the like.

FIG. 5 shows an operation diagram of the reversing device 3. As shown in FIG. 5A, the flat-screen TV T is moved from the workbench 2 onto the lower stage 11 of the reversing device 3. Next, as shown in FIG. 5B, the work retainer 13 is lowered, and the flat-screen TV T is pressed against the lower stage 11 by the work retainer 13. Further, the stopper 14 closes the space between the end of the lower stage 11 and the end of the upper stage 12. Next, as shown in FIGS. 5C and 5D, the lower stage 11 and the upper stage 12 are turned upside down by the rotating device 15. Next, as shown in FIG. 5D, the work retainer 13 is separated from the lower stage 11 (that is, the work retainer 13 is lowered), and the flat-screen TV T is placed on the upper stage 12. Further, the stopper 14 opens between the end portion of the lower stage 11 and the end portion of the upper stage 12. As a result, the flat-screen TV T can be moved from the upper stage 12 of the reversing device 3 to the workbench 2. The height of the upper stage 12 is equal to the height of the stage of the workbench 2.

The configuration of the reversing device 3 of the present embodiment has been described above. According to the reversing device 3 of the present embodiment, the following effects are obtained.

Since the flat-screen TV T is sandwiched between the lower stage 11 and the upper stage 12 and the lower stage 11 and the upper stage 12 are turned upside down, even a large flat-screen TV T can be turned upside down. Further, since the flat-screen TV T is pressed against the lower stage 11 by the work presser 13 during the vertical flipping, it is possible to prevent the flat-screen TV T from going wild during the vertical flipping.

Since the stopper 14 for opening and closing the end of the upper stage 12 and the end of the lower stage 11 is provided, it is possible to prevent the flat-screen TV T from falling during vertical inversion. Further, the flat-screen TV T after being turned upside down can be moved from the flipping device 3 to the workbench 2.

Since the lower stage 11 includes a plurality of lower rollers 11b and the upper stage 12 includes a plurality of upper rollers 12b, it becomes easy to put the flat-screen TV T in and out of the reversing device 3.
(Disassembly method)

A method of disassembling the flat-screen TV T will be described. As described above, the back side of the flat-screen TV T is first disassembled. The flat-screen TV T is placed on the workbench 2 with the front side (panel side) facing down. The worker removes the back side of the flat-screen TV T, that is, the rear cover (rear cabinet), the board, and the like.

After disassembling the back side of the flat-screen TV T, the flat-screen TV T is put into the reversing device 3 and the flat-screen TV T is turned upside down. The flat-screen TV T after being turned upside down is returned to the workbench 2.

Next, the front side of the flat-screen TV T is disassembled. The flat-screen TV T is returned to the workbench 2 with the front side facing up. The worker removes all parts such as the front cabinet, LCD panel, backlight, and optical sheet.

1 ... Dismantling device 2 ... Workbench 3 ... Reversing device 4 ... Rotating table 5 ... Brake device 7 ... Roller 7a ... Long roller 7b ... Short roller 8 ... Stage 10 ... Tilt device 11 ... Lower stage 11b ... Lower roller 12 ... Upper stage 12b ... Upper roller 14 ... Stopper 15 ... Rotating device 19 ... Fall prevention member

Claims (7)

A stage on which a flat-screen TV can be placed and
A tilting device that tilts the stage around one end side,
In a workbench for dismantling a flat-screen TV, which is provided in the stage and includes a rotary table that can be raised and lowered to rotate the flat-screen TV.
The stage has multiple rollers
A workbench for dismantling a flat-screen television in which at least one of the plurality of rollers is switched between a fixed state and a non-fixed state by a braking device. The plurality of rollers include a long roller supported by the frame and a short roller supported by the frame so as to avoid interference with the rotary table.
The workbench for disassembling a flat-screen television according to claim 1, wherein the brake device switches the short roller between a fixed state and a non-fixed state. Lower stage and
The upper stage facing the lower stage and
A work presser provided on the upper stage and pressing a flat-screen TV inserted between the lower stage and the upper stage against the lower stage.
A rotating device for turning the lower stage and the upper stage upside down is provided.
With the flat-screen TV pressed against the lower stage by the work retainer, the lower stage and the upper stage are turned upside down by the rotating device, and then the work retainer is separated from the lower stage to the upper stage. A flat-screen TV reversing device that mounts a flat-screen TV. At least one of the lower stage and the upper stage opens and closes at least a part between the end of the lower stage and the end of the upper stage to prevent the flat-screen TV from falling off during upside down. The reversing device for a flat-screen television according to claim 3, wherein a stopper is provided. The lower stage comprises a plurality of lower rollers.
The reversing device for a flat-screen television according to claim 3 or 4, wherein the upper stage includes a plurality of upper rollers. The workbench according to claim 1 or 2,
The reversing device according to any one of claims 3 to 5 is provided.
A flat-screen TV dismantling device in which the center of rotation of the reversing device is orthogonal to the transport direction of the flat-screen TV on the workbench in a plan view. The step of disassembling the back side of the flat-screen TV using the workbench according to claim 1 or 2.
A step of turning the flat-screen TV upside down using the reversing device according to any one of claims 3 to 5.
A method for disassembling a flat-screen television, comprising a step of disassembling the front side of the flat-screen television that has been turned upside down using the workbench according to claim 1 or 2.

Images