JPS6082510A - Heavy article inverting method and device - Google Patents

Abstract

PURPOSE:To perform an inverting work with safety and ease as well as make respective positions of heavy articles before and after inversion thereof substantially the same by bringing the heavy articles down by 90 deg., and rotating them by a proper angle in a horizontal plane, and thereafter setting upright them in the opposite direction to a direction where the heavy articles are brought down. CONSTITUTION:A columnar heavy article A such as a piston of a marine vessel engine, etc., is placed on a horizontal plate part 2 of a receiver table 1, and supported on a setting-up plate part 3 by a support table 14. With this situation, a cylinder 5 is expanded to cause the receiver table 1 to be rotated and the horizontal plate part 2 to be set up, while the setting-up plate part 3 to be made horizontal. In addition, a rotating plate 7 is moved by a cylinder 9, and rotated by a motor 12 by 90 deg. or 180 deg.. Thereafter, the cylinder 5 is shrotened, the receiver table 1 is rotated to an original position, and inversions of the heavy articles A are complete. Hereby, the heavy articles A can be converted with ease and safety, while positions of the heavy articles A before and after inversion thereof can be made substantially the same.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for inverting heavy cylindrical objects, such as pistons of marine engines, weighing several tons.

This type of heavy object must be turned over because the surface roughness must be inspected over the entire surface. For this reason, conventionally, one end is lifted up using a crane or the like and laid down on a cushioning member such as a tire, and then the other end is lifted up and turned upside down (inverted). However, since the object to be inverted is heavy, the crane moves easily during the operation, and accidents are likely to occur, such as the object swinging and hitting the worker or the hanging tool coming off. In addition, since the positions before and after reversal are shifted, this discrepancy poses a hindrance to automation.

The present invention takes the above points into consideration, and aims to provide a reversing method and device that includes an operation of rotating a heavy object during the reversing operation so that the positions before and after reversing are almost the same, and the work can be carried out safely. purpose.

In order to achieve this object, the present invention involves tilting a heavy object to the side by 90 degrees, rotating it at an appropriate angle on a horizontal plane, and then standing it up in the opposite direction to the direction in which it was tilted.
The upright plate part of the L-shaped pedestal consisting of a horizontal plate part and an upright plate part is rotatably attached to the base about the ridgeline direction of both plate parts, and the base has a drive device for rotating the pedestal. A rotary plate that can move toward and away from the horizontal plate is provided on a surface of the upright plate on the horizontal plate side, and a drive device for rotating the rotary plate and the drive device for approaching and separating are provided on the upright plate. It is composed of

With this structure, a heavy object to be inverted is placed on the horizontal plate section, the heavy object is appropriately supported on the upright plate section, and then the pedestal is tilted 90 degrees to the side and the horizontal plate section is erected. , set the upright plate section horizontally, then move the rotating plate away from the horizontal plate section, rotate the heavy object by an appropriate angle without hitting the horizontal plate section, and then turn the rotating plate. After the heavy object is brought close to the horizontal plate part and brought into contact with the horizontal plate part, the pedestal is raised in the opposite direction to the above-mentioned example direction to complete the reversing action.

Therefore, according to the present invention, since the heavy object is turned over by the rotating action of the pedestal and the rotating action of the rotary plate on the pedestal, there is no fear of the heavy object shaking, and the work is safe. It has the effect of being speedy. Furthermore, since the position of the heavy object before and after reversal is almost the same, there is no problem with the reversing operation in an automated line. Furthermore, by selecting the rotation angle of the rotary plate, there is also the effect that the reversal angle can be arbitrarily obtained.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the pedestal 1 for the heavy object A has a 1-shaped shape consisting of a horizontal plate part 2 and an upright plate part 3, and the upright plate part 3 is centered around the ridgeline direction of the drawing board parts 2 and 3. The pedestal 1 is rotatably attached to a base 4, and is rotatable by a hydraulic cylinder 5 provided on the base 4.

As shown in FIG.
A seven-way rail 6 is provided on both sides of the frames 3a and 3b (in the direction of approach and separation), and a support frame 8 for a rotary plate 7 is movably provided on the rail 6. 8
is moved and stopped at the desired position.

A circular hole is formed in the support frame 8, and an annular rack 10 on the lower surface of the rotating plate 7 is fitted into the circular hole via a bearing 11, so that the support frame 8 can be rotated. A pinion 13 of a motor 12 fixed to a support frame 8 on this rack 10
are in mesh, and the pinion 131 is engaged by the motor 12.
The rotary plate 7 rotates via.

A support stand 14 is provided on the rotary plate 7 to firmly support the heavy object A. The structure of the support stand 14 may be made as appropriate.

Next, the effect will be explained.

Now, in the state where the pedestal 1 is positioned as shown in FIG.
4 and supported on the upright plate part 3.

Next, as shown in Fig. 2, the cylinder 5 is extended and the pedestal 1 is
Rotate, raise the horizontal plate part 2, make the standing plate part 3 horizontal,
The rotary plate 7 is moved by the cylinder 9 and roughly rotated by 90 degrees or 180 degrees by the motor 12, and the heavy object A is brought into contact with the horizontal plate part 2 by moving the rotary plate 7 as shown by the chain line in FIG. Subsequently, the cylinder 5 is contracted and the pedestal 1 is rotated to its original state as shown in FIG. 3, thereby completing the reversal of the heavy object A.

Note that the position of the rotation axis of the upright plate portion 3 and the supporting position of the hydraulic cylinder 5 to the pedestal 1 may be appropriately set within a range where the function can be achieved. Further, when the rotary plate 7 is rotated by 90 degrees, the heavy object A is reversed by 90 degrees, and when it is roughly rotated by 180 degrees, it is reversed by 180 degrees, with the top and bottom being reversed. However, in the case of a hexagonal prism or the like, even if it is rotated by 60 degrees, the bottom surface can be inspected, so the rotation angle of the rotary plate 7 may be appropriately selected in accordance with the reversal angle.

[Brief explanation of the drawing]

1 to 3 are front views for explaining the operation of one embodiment of the reversing device of the present invention, FIG. 4 is a right side view of FIG. 3, and FIG. 5 is a partially enlarged sectional view of FIG. 4. be. 1... cradle, 2... horizontal plate part, 3... standing plate part,
4... Base, 5... Hydraulic cylinder, 7... Rotating plate, 9... Hydraulic cylinder, 10... Rack, 12...
・Motor, A...Heavy object. Patent Applicant: Komai Iron Works Co., Ltd. Agent: Kama 1) Text 2 Figure 1 Figure 4, Figure 3 2 7 1 4 2 ~ [1

Claims (2)

[Claims] (1) A method for reversing a heavy object, which comprises: tilting the heavy object sideways by 90 degrees, rotating it by an appropriate angle on a horizontal plane, and then standing it up in the opposite direction to the direction in which it was turned down. (2) The upright plate part of the L-shaped pedestal consisting of a horizontal plate part and an upright plate part is rotatably attached to the base with the ridgeline direction of the drawing board part as an axis, and the pedestal is rotated on the base. A drive device is provided,
A heavy object comprising: a rotary plate that can move toward and away from the horizontal plate portion on a surface of the horizontal plate portion of the upright plate portion; and a drive device for rotating the rotary plate and the drive device for approaching and separating the lift plate portion. Reversing device.