JP4207371B2 - Workbench - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a workbench, and more particularly, to a workbench for disassembling an electric appliance such as a television.
[0002]
[Prior art]
To recycle the waste television, first, the waste television is disassembled into various components such as a cathode ray tube, an electron gun, a cover, a case, and a speaker. Then, processing for re-commercialization is performed for each disassembled component. For example, plastics such as cases and covers are crushed and then melted and re-commercialized.
[0003]
By the way, a television is generally assembled from the back. For this reason, the dismantling work of the waste television is performed in a state where the waste television is defeated and the back surface is directed upward. Conventionally, an operator manually defeats a waste television set on a workbench.
[0004]
[Problems to be solved by the invention]
However, when an operator manually defeats a large waste television, not only the work efficiency is bad, but there is a problem that it is dangerous.
[0005]
In addition, the conventional dismantling operation has a drawback in that work efficiency is poor because a heavy tube is manually lifted and pulled out of the case.
[0006]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a workbench that can dismantle products such as waste television efficiently and safely.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a workbench for disassembling a product into various components, which is attached to the upper surface of the workbench and is between a horizontal state and a state inclined upward. It is characterized by comprising an oscillating inclined plate and a lift base provided so as to protrude from the upper surface of the work table.
[0008]
According to the present invention, the product can be easily tilted by pressing the product against the inclined plate in an inclined state and the inclined plate is leveled, and the dismantling operation can be performed efficiently and safely. it can. In addition, according to the present invention, it is possible to safely and quickly take out a component by lifting at least one of the disassembled components with a lift base.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of a workbench according to the present invention will be described in detail with reference to the accompanying drawings.
[0010]
FIG. 1 is a block diagram showing a dismantling system 12 to which a workbench 10 according to the present invention is applied.
[0011]
As shown in the figure, the dismantling system 12 has a recovery shelf 14 in which waste television is stored. The waste television stored in the collection shelf 14 is sandwiched between clamps 32 (see FIG. 2), which will be described later, and transferred to the weigher 16. The weigher 16 is a device for measuring the weight of the waste television, and the weight data measured here is transmitted to and stored in a control device (not shown).
[0012]
The waste television whose weight has been measured by the weigher 16 is transferred to the work table 10 by an operator and disassembled for each of various components. For example, it is disassembled into a cathode ray tube, a back cover, a casing, an electron gun, a speaker, a base, an electric wire, etc. Among them, plastics such as a back cover and a casing are temporarily crushed by a crusher 20 and then temporarily put into a pit 22. Be contained. The plastics accommodated in the pits 22 are transferred to a plastic re-commercialization process (not shown). On the other hand, component parts such as cathode ray tubes and electron guns are stored in the collection basket 24 for each part, and then transferred to various processing steps 26.
[0013]
FIG. 2A is a side view of the clamp 32 that transports the waste television 28 from the collection shelf 14 of FIG. 1 to the weighing instrument 16.
[0014]
The clamp 32 has a suspended portion 34 attached to a ceiling hoist or balancer (not shown), and base ends of links 36A and 36B are rotatably supported by pins 40 on the suspended portion 34. The base ends of the links 38A and 38B are rotatably connected to the distal ends of the links 36A and 36B by pins 42A and 42B, respectively, and the link 38A and the link 38B are rotatably connected by pins 44. ing. In addition, grip portions 46A and 46B are attached to the distal ends of the links 38A and 38B, respectively. The gripping portions 46A and 46B have claws that bite into the casing of the waste television 28, and a plurality of the claws are arranged side by side in the depth direction of FIG.
[0015]
A cylinder 48 is attached to the pin 42A, and a rod 48A of the cylinder 48 is connected to the pin 42B. Therefore, when the rod 48A of the cylinder 48 is contracted, the links 38A and 38B are swung, and the interval between the gripping portions 46A and 46B is reduced. Accordingly, the claws of the gripping portions 46A and 46B bite into the casing of the waste television 28, so that the waste television 28 can be held and conveyed.
[0016]
A lock lever 50 is swingably connected to the pin 42A. When the cutout groove 50A of the lock lever 50 is engaged with the pin 42B, the claw portions 46A and 46B are fixed in an open state. Therefore, the clamp 32 that does not sandwich the waste television 28 can be safely transferred.
[0017]
The clamp 52 shown in FIG. 2 (B) conveys the cathode ray tube 30 from the work table 10 in FIG. 1 to the collection basket 24, and is configured in substantially the same manner as the clamp 32 in FIG. 2 (A). The clamp 52 has rubber plates 54A and 54B attached to the end portions of the links 38A and 38B, and can transport the clamps without damaging the cathode ray tube 30. Note that a lock lever is not shown in the clamp 52 shown in FIG. 2B, but a lock lever may be attached.
[0018]
FIG. 3 is a perspective view showing the structure of the work table 10, and FIG. 4 is a side sectional view of the work table 10.
[0019]
As shown in these drawings, the work table 10 is installed adjacent to the weighing device 16, and the upper surface 18 thereof is formed at substantially the same height as the upper surface of the weighing table 16. A plurality of ridges 56, 56,... Are formed on the upper surface 18 of the work table 10 in parallel with the conveying direction of the waste television 28 (the left-right direction in FIG. 4). The ridge 56 is made of a member having a small frictional resistance with the waste television 28, for example, a fluororesin such as ethylene tetrafluoride. On the other hand, a plurality of rollers 58, 58,... Thereby, the operator can easily slide the waste television 28 placed on the weighing instrument 16 to the work table 10 by hand. A roller 60 is rotatably supported between the work table 10 and the weighing device 16, and the waste television 28 is prevented from falling off by the roller 60.
[0020]
A lift table 62 is provided at the center of the work table 10. The lift table 62 is configured by attaching a rubber plate 66 to the upper end portion of a cylindrical tube body 64, and is configured to protrude from the upper surface 18 of the work table 10. The cylinder body 64 is connected to a rod 68A of an elevating cylinder 68. When a fluid such as air or hydraulic oil is supplied from the compressor 70 to the elevating cylinder 68, the lift table 62 is raised and lowered. A solenoid valve (not shown) is disposed in the air hose 72 that communicates the lift cylinder 68 and the compressor 70, and the rod of the lift cylinder 68 is operated by operating a lift foot pedal 74 that is linked to the solenoid valve. 68A extends and contracts. For example, each time the step 74A of the lifting foot pedal 74 is stepped on, the rod 68A extends and the lift base 62 rises. Further, by continuing to step on the step 74B of the lifting foot pedal 74, the rod 68A is shortened and the lift base 62 is lowered. The size of the lift table 62 is set according to the size of the waste television 28 to be dismantled, so that the CRT 30 can be lifted stably and can penetrate the frame-shaped casing of the waste television 28. Is set. The rubber plate 66 is attached to prevent damage to the CRT 28 lifted by the lift table 62. Also, reference numeral 76 in FIG. 4 is a guide for the lift table 62.
[0021]
An inclined plate 78 is swingably attached to the rear edge of the upper surface 18 of the work table 10. The tilt plate 78 is connected to rods 80A of two tilt cylinders 80 (only one is shown). By supplying a fluid from the compressor 70 to the tilt cylinder 80, the rod 80A expands and contracts. 78 swings. A solenoid valve (not shown) is disposed in the air hose 84 that communicates the tilt cylinder 80 and the compressor 70, and the rod 80A expands and contracts by operating the tilt foot pedal 82 that is linked to the solenoid valve. It is like that. For example, each time the step portion 82A of the lifting foot pedal 82 is stepped on, the rod 80A extends and the inclined plate 78 stands up. Further, when the step part 82B is continuously stepped on, the rod 80A is shortened, and the inclined plate 78 approaches horizontal. Here, the tilt angle α of the tilted tilt plate 78 is set to an angle at which the waste television 28 pressed against the tilt plate 78 does not fall by itself, for example, an angle of about 50 ° from the horizontal direction.
[0022]
A plurality of ridges 86, 86... Are arranged on the upper surface of the inclined plate 78 in a direction perpendicular to the ridges 56. The ridge 86 is made of a member having a low frictional resistance with the waste television 28, for example, a fluororesin such as tetrafluoroethylene, like the ridge 56. In addition, the shape of the protruding item | line part 56 and the protruding item | line part 86 may be a semicircle shape, or a cross section may be square.
[0023]
A tool table 88 is attached to the front side of the work table 10. The tool base 88 is supported so as to be rotatable about a vertically arranged rod member 90, and an operator can move to an arbitrary position. In addition, although the tool stand 88 of FIG. 3 is attached to the front left side (balance side), it is not limited to this and may be attached to the right side.
[0024]
Next, the operation of the work table 10 described above will be described based on the flowchart of FIG. 4 and the operation explanatory diagram of FIG.
[0025]
First, the operator slides the waste television 28 whose weight is measured by the weigher 16 to the work table 10 (step S1). At this time, since the ridge 56 is provided on the upper surface 18 of the work table 10, the waste television 28 can be easily slid.
[0026]
Next, the stepping portion 82A of the tilting foot pedal 82 is stepped on to tilt the tilting plate 78 (step S2). Thereby, the inclined plate 78 is maintained in the inclined state as shown in FIG.
[0027]
Next, the waste television 28 is slid to the back side. Then, as shown in FIG. 5B, while pressing against the inclined plate 78, the step portion 82B of the inclination foot pedal 82 is stepped on to return the inclined plate 78 to the horizontal state (step S3). As a result, the waste television 28 is brought down and the back surface is turned up.
[0028]
Next, the waste television 28 is slid forward as shown in FIG. 5C, and the waste television 28 is positioned on the lift table 62 (step S4).
[0029]
Next, as shown in FIG. 5D, the back cover 92 of the waste television 28 is removed, and the waste television 28 is disassembled into various components (step S5). For example, lightweight parts (not shown) such as an electron gun, a speaker, an electric wire, and a substrate are removed, and the fixation of the heavy tube CRT 30 and the casing 94 is released. The removed lightweight parts are manually put into the collection basket 24 shown in FIG. Each of the input lightweight parts is re-commercialized, for example, metal is taken out and reused.
[0030]
Next, the lift stand 62 is raised by stepping on the step 74A of the lifting foot pedal 74 (step S6). As a result, the lift table 62 protrudes from the upper surface 18 of the work table 10 and penetrates the frame-shaped casing 94 as shown in FIG. The CRT 30 is lifted above the casing 94 by the lift table 62. At this time, since the rubber plate 66 of the lift base 62 contacts the cathode ray tube 30, the cathode ray tube 30 is not damaged.
[0031]
Next, as shown in FIG. 5F, the cathode ray tube 30 lifted by the lift table 62 is nipped and conveyed by the clamp 52 (step S7), and is collected in the collection basket 24 of FIG. Thereby, the cathode ray tube 30, which is a heavy object, can be automatically collected without the operator lifting it. The collected CRT 30 is crushed at another work place, and the glass is regenerated.
[0032]
Next, the lift platform 62 is lowered by stepping on the step 74B of the lifting foot pedal 74 (step S8). And plastics, such as the casing 94 and the back cover 92, are collect | recovered (step S9), and it transfers to the crusher 20 of FIG. 1 with a free roller or a conveyor (not shown). Then, after the plastics crushed by the crusher 20 are accommodated in the pit 22, the plastics are transported to a recycling factory by a truck or the like and processed again.
[0033]
As described above, according to the work table 10 of the present embodiment, the waste television 28 is tilted with the inclined plate 78 being leveled while pressing the waste television 28 against the inclined tilted plate 78, so that a great deal of labor is required. Therefore, the dismantling operation can be performed easily and quickly.
[0034]
Further, according to the work table 10, the operator operates the lifting foot pedal 74 with his / her foot while pushing the waste television 28 against the inclined plate 78 by hand, and the waste television 28 is brought down, so that the work efficiency is good. .
[0035]
Further, since the work table 10 lifts the cathode ray tube 30 by the lift table 62 that can be raised and lowered, the cathode ray tube 30 that is a heavy object can be easily taken out from the casing 94. Therefore, since it is not necessary to lift the CRT 30 manually, it is safe and can be quickly dismantled.
[0036]
Furthermore, since the worktable 10 includes the convex portion 56 on the upper surface 18, the waste television 28 can be smoothly slid.
[0037]
In the above-described embodiment, when the lift table 62 is lowered to a position lower than the upper surface 18 of the work table 10, an opening is formed at the center of the work table 10, so that screws and the like can be collected from the opening. .
[0038]
Further, the upper surface shape of the lift table 62 is not limited to the above-described embodiment, and may be a rectangle or an ellipse.
[0039]
Further, the number of the lift tables 62 is not limited to one, and a plurality of small lift tables (not shown) may be provided. In this case, it is preferable to select the lift base 62 that moves up and down according to the size of the waste television 28 and to drive the selected lift base 62 in synchronization.
[0040]
In the above-described embodiment, the protrusion 56 is provided as a means for sliding the waste television 28. However, the present invention is not limited to this, and the entire upper surface 18 is coated with resin or the like. A large number of resin hemispheres may be attached to the upper surface 18.
[0041]
In the above-described embodiment, the operator manually pushes the waste television 28 against the inclined plate 78, but the waste television 28 is tilted by lifting the front side of the waste television 28 with the lift table 62. You may press against the plate 78.
[0042]
Furthermore, the inclination angle of the inclined plate 78 is not limited to the embodiment described above, and may be raised vertically, for example.
[0043]
The work table 10 described above is not limited to the dismantling work of the waste television 28, and can be applied to any product dismantling work.
[0044]
【The invention's effect】
As described above, according to the workbench according to the present invention, the product is brought down by pressing the product against the inclined plate and leveling the inclined plate, so that the dismantling work can be performed efficiently and safely. Can do. Moreover, according to this invention, since the disassembled component part is lifted with a lift stand, a component part can be removed safely and rapidly.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a dismantling system to which a workbench according to the present invention is applied. FIG. 2 is a side view showing a clamp for conveying waste television and a cathode ray tube. FIG. 3 is a perspective view showing the structure of the workbench. 4 is a side sectional view showing the workbench of FIG. 3. FIG. 5 is a flowchart of the dismantling work using the workbench according to the present invention. FIG. 6 is an explanatory diagram for explaining the operation of the workbench according to the present invention. Explanation】
DESCRIPTION OF SYMBOLS 10 ... Worktable, 12 ... Dismantling system, 16 ... Weighing device, 18 ... Upper surface (of worktable), 32, 52 ... Clamp, 56 ... Projection part, 62 ... Lift stand, 66 ... Rubber plate, 68 ... For raising / lowering Cylinder, 74 ... Elevating foot pedal, 78 ... Inclined plate, 80 ... Inclining cylinder, 82 ... Inclining foot pedal

Claims (2)

A workbench for disassembling products into various components,
An inclined plate attached to the upper surface of the workbench and swinging between a horizontal state and a state inclined upward;
A lift table provided so as to protrude from the upper surface of the work table;
A workbench characterized by comprising: The work table according to claim 1, wherein a sliding member for sliding the product is provided on an upper surface of the work table.

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