JPS5948217B2 - Hanging member removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for mechanically removing a hanging member, particularly a heavy object such as a glass plate, from a hanging device.

Conventionally, for example, in the process of manufacturing tempered glass,
The glass plate was suspended and sent to a heating furnace, heated and rapidly cooled to strengthen it, and the strengthened glass plate was removed manually, but the surface temperature of the strengthened glass plate was 200℃. It is extremely dangerous to handle it manually at temperatures of ~250°C, and if removal work is performed by mechanical means, it will damage the surface of the glass plate and cause a decline in the quality of the glass plate. There were flaws. The present invention eliminates the above-mentioned drawbacks, and an embodiment thereof will be described below with reference to the drawings.A glass plate 1 is held at its upper end by a gripper 3 provided on a suspension conveyance means 2 such as a hanger conveyor. When it is carried to the position, it contacts the limit switch 4 installed at that position, and the signal causes it to stop at a predetermined position on the guide roller 5, and at the same time, the cylinder devices 6 and 7 are activated by the signal from the limit switch 4. Then, the clamping tools 8 and 9 like pads move forward and clamp both sides of the glass plate 1.

When the clamping is completed, the cylinder device 10 is activated after a set time by a timer activated by a signal from the limit switch 4, and slightly raises the upper end connecting rod 13 of the vertical moving shafts 11 and 12 having the cylinder devices 6 and 7 at the lower ends, respectively. Then, the vertical movement shafts 11 and 12 move upward guided by guide blocks 14 and 15 provided on the frame body of the frame F, and lift the glass plate 1 upward by the clamping force of clamping tools 8 and 9 such as pads. . At this time, the stopper cylinder device 16, which is limited to a stroke amount smaller than that of the cylinder device 10, also operates at the same time, and when the cylinder device 16 moves upward by the stroke amount, the vertical movement shafts 11 and 12 stop moving upward. Therefore, the lifted glass plate 1 also stops moving upward. "Cylinder device"
0 is equipped with a device for adjusting and controlling the stroke amount, it is not necessary to provide the stopper shiver device 16. When the glass plate 1 is lifted upward by the clamping force of the pads 8 and 9, the hanging load of the glass plate 1 is supported only by the clamping force of the pads 8 and 9, and no load is applied to the gripping tool 3. Therefore, when opening the gripping tool 3 to release the gripping force of the gripping tool 3 on the glass plate 1, the protruding piece 29 of the gripping tool 3, which will be described later, can be easily removed from the glass plate 1, and the protruding piece 29 can be easily removed from the glass plate 1 when the gripping tool 3 is released. The piece 29 prevents separation scratches from being left on the surface of the glass plate 1.

When the upward movement of the glass plate 1 stops, the glass plate 1 is attached to the frame body 17 provided on the frame F by a signal from a limit switch (not shown) which is provided at the upward movement stop position of the upper end connecting rod 13 and is activated by contacting the rod 13. The cylinder device 18 is actuated to advance the gripping force release operating rod 21 which engages with the tip of the rod 19 of the cylinder device 18 and moves back and forth along the slide shaft 20.

A cylinder device 23 for raising and lowering a plurality of gripping force release fittings 22 is attached to the front side of the rod 21. As the gripping force release lever 21 moves forward, the metal fitting 22 is released from the gripping tool 3.
It moves forward to a position below the gripping force release rod 24 (see FIGS. 3 to 5) attached to it, and stops. Next, the cylinder device 23 is activated by a signal from a limit switch (not shown) which is provided at the forward stop position of the operating rod 21 and is activated by contacting the rod 21.
is activated, the rod 25 rises, and the metal fitting 22 pushes up the gripping force release rod 24, releasing the gripping force of the gripping tool. As the gripping force is released, the cylinder is released. The actuation device 10 is activated by the actuation rod 21 and activated after the set time of the timer activated by the signal from the limit switch, and the vertical movement axis 1
1 and 12 to lower the glass plate 1 to just above the peg conveyor 26. At this time, the cylinder device 16 is also activated. It descends to its full stroke amount. When the lowering by the cylinder device 10 is completed, the cylinder devices 6 and 7 are actuated by a signal from a limit switch (not shown) which is provided at the lower end of the connecting rod 13 and operates by contacting the rod 13. The attached gripping tools 8 and 9 such as pads 5 are moved back to release the gripping force on the glass plate, and the glass plate 1 is transferred onto the peg conveyor 26. When the cylinder devices 6 and 7 move backward to complete the transfer of the glass plate, the cylinder device 10 is activated by the downward movement of the connecting rod 13, and after the set time of the timer activated by the limit switch signal 4, the cylinder device 10 is activated, and the vertical movement axis Raise 11 and 12. As mentioned above, since the cylinder device 16 has descended to its stroke limit, this upward movement continues until it comes into contact with the stopper piece 27 attached to the tip of the rod, and then stops, allowing the glass plate transfer operation to proceed. 1 cycle is completed and we wait for the next glass plate to arrive. Simultaneously with the upward movement of the cylinder device 10, the cylinder device 23 also operates to release the gripping force release fitting 2.
2 is attached to the rod 25 is lowered to the standby position, and the cylinder device 18 is also activated to release the gripping force release actuating rod 21.
back to the standby position. The operations of one cycle as described above are all sequentially controlled by the chain operation of known control means such as limit switches and timers, as mentioned above. On the other hand, as shown in FIGS. 3 to 5, the gripping tool 3 is suspended from the suspension conveyance means 2 by a link 28,
It is composed of a pin-connected link mechanism, and the glass plate 1 is gripped by a protrusion 29 provided at the bottom.

In each of these gripping tools 3, when the gripping force release rod 24 is pushed upward, the protrusion 29 opens and the gripping force is released. In FIG. Replace the mounting position of the protrusion 29, and
If the hanging member is provided facing outward, when the hanging member has a gripping surface on the inner wall, such as a cylindrical object, the projecting piece can expand to grip the hanging object, and the release rod can be When pushed upward, the space between the protrusions shrinks and the gripping force is released. Note that the release means of the gripping tool 3 is not limited to the above-described embodiment, and may be modified in various ways without exceeding the scope of the present invention.

As described above, the present invention enables the hanging member to be mechanically and safely removed from the hanging holder without manual labor, so that the removal work can be carried out efficiently without any operational risks. It is extremely effective as a device for handling high-temperature objects and heavy objects, and it is possible to use the gripping tool to slightly lift a heavy hanging member such as a glass plate suspended by the gripping tool. Since the gripping force is released, the gripping tool is separated from the hanging member in a state where the weight of the hanging member is not loaded, and there is no risk of leaving scratch marks on the gripped surface of the hanging member when the gripping tool is removed.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, FIG. 1 is a schematic front view, FIG. 2 is a sectional view taken along line A-A in FIG. FIG. DESCRIPTION OF SYMBOLS 1... Hanging member, 3... Grasping tool, a is a front view, 8, 9... Pad, 21... Grasping force release operating rod, 22...
...Gripping force release fitting, 24...Gripping force release rod.

Claims (1)

[Claims] 1. At a position where the hanging member suspended by a gripper provided on the hanger conveyor is to be transferred to the peg conveyor, a clamping tool is operated to clamp the hanging member in response to the transfer position arrival signal of the hanging member. At the same time, a cylinder device is installed to slightly raise the gripping tool after a set time by a timer activated by the arrival signal, and a gripping force release actuating rod is installed that moves forward and stops in response to an upward movement stop signal of the cylinder device. A gripping force release fitting is attached to the operating rod, and the gripping force release metal is raised in response to a stop signal of the operating rod and pushes a gripping force release rod provided on the gripping tool to release the gripping force, and to move the cylinder device downward and move the clamping tool downward to transfer the hanging member to the peg conveyor;
A hanging member removal device that releases the clamping of the clamping tool in response to a downward movement stop signal of the cylinder device.