JP3064165B2 - Reversing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reversing machine for reversing a heavy object in the air by using an existing lifting machine at a manufacturing plant for casting, can making, assembly, etc. and at an outdoor site such as construction, civil engineering and the like. About.

[0002]

2. Description of the Related Art In this type of conventional reversing machine, for example, as shown in FIGS. 7 and 8, a suspending portion 02 for a hook 01 is provided on an upper portion of a gantry 03, and a pair of trolleys 04 is arranged on a lower portion of the gantry 03. And the trolley 04 is slid by a ball screw 05a interlocked with a motor 05 at both ends of the gantry 03. The reversing unit 06 pivotally supported by the trolley 04 has a rotating machine 06 having a chain wheel 06a.
b, a sling chain 07 for supporting a workpiece to be inverted is hung on the chain wheel 06a, and the sling chain 07 of the apparatus uses a hanger 08a protruding from both sides of the mold 08 to form a mold. 08 reversal work.

[0003]

The reversing machine used for the above-described conventional work aerial reversal has the following various problems. (1) It is necessary to slide a pair of trolleys 04 according to the length a of the mold 08 to be turned over, but the trolleys 04 move from the center of the gantry because the motors 05 for adjusting the work length are attached to each. The distances b and b 'are slightly shifted, and the mold 08 may be inclined during lifting. (2) When the mold 08 is biased in the longitudinal direction of the gantry 03, and when the hanging position of the pair of loop chains 07 is not equal to the center of gravity of the mold 08, when the hoist is lifted, the mold 08 tilts. 04 needs to be moved to make the mold 08 horizontal. (3) For restoring when the mold 08 is inclined, it is necessary to slide the trolley 04 in a state where the load of the mold 08 is acting. The ball screw 05a needs a rigid structure as a whole because a compressive and tensile force corresponding to the inclination acts thereon.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a reversing machine which solves the above-mentioned problems of the conventional apparatus, can easily perform reversal, and can easily perform horizontal leveling and tilting of the entire surface.

[0005]

The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 to 5 corresponding to an embodiment. The present invention provides a gantry 1 and an upper surface of the gantry 1. hook provided movably through Pawashirinda 5 to 2
A hanging section with trolley 4 of use, Oite the lower surface of the frame 1
One driving roller chain 8 stretched in a horizontal loop between two sprockets 10 and 11 , and one side and the other side of the loop of the driving roller chain 8.
Are connected to each other by rotation of the driving roller chain 8.
Ri and rotating machine with trolley 7 of a pair provided movably in opposite directions at the same time, the inverted target workpiece support for hung over the chain wheel 13 interlocked with the rotating machine 6 of該回turning point with trolley 7 And a loop-shaped sling chain 15.

Further, the present invention detects the inclination of the gantry 1.
The level gauge 17 is provided, the Pawashirinda 5 the horizontal unit 17
It is characterized by being linked to.

[0007]

According to the present invention, the reversing machine is lifted by the lifting machine by the above means, moved on the work to be reversed, and the roller chain stretched in a horizontal loop on the gantry is rotated to reverse the interval of the trolley with the rotating machine. After being adjusted to correspond to the target work size, the loop-shaped sling chain 15 suspended on a pair of trolleys is set so as to support the target work.

Next, when the gantry is lifted by the existing lifting machine, the work from the gantry is suspended. At this time, since the gantry is a single-point hanging balance type, the work and the gantry are inclined when the work is under eccentric load or when the sling chain setting position is not appropriate, but the hanging part on the gantry is slid in the inclination direction. Can be leveled out. After confirming the level of the work, the rotating machine is operated, and the work to be reversed, which has been kept horizontal by rotating the sling chain, is rotated and reversed.

Further, in the present structure of the hanging balance type, the work can be easily tilted over the entire surface by the lateral movement of the hanging portion and the rotation of the loop chain. That is, by changing the fulcrum of the X axis and the Y axis with respect to the center of gravity of the work, the work can be arbitrarily leveled and tilted in the entire direction. In addition, when the leveler is linked to the power cylinder, if the work is eccentric load, the leveler operates because the gantry tilts, and the power cylinder automatically slides the trolley with the hanging part on the gantry to the position of the center of gravity in the heavy direction. Horizontal balance can be achieved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. Reference numeral 1 denotes a gantry, and the gantry 1 is formed of a cross section I-shaped steel as shown in FIG. A trolley 4 with a hanging portion having a hanging portion 3 with which a hook 2 of a lifting machine to be engaged is movably provided via a power cylinder 5 with a motor, and a trolley with a rotating machine having a rotating machine 6 on the lower surface of the gantry 1. 7 are provided so as to be simultaneously movable in opposite directions via a roller chain 8 stretched in a horizontal loop. More specifically, a vertical motor 9 is attached to one end of the gantry 1, and a driving sprocket 10 driven by the motor 9 is set so as to be located on the lower surface of one end of the gantry 1, and a driven sprocket 10 facing the driving sprocket 10 A sprocket 11 is set on the other end of the gantry, the roller chain 8 is stretched between the sprockets 10 and 11, and the pair of trolleys 7 with rotating machines are connected to respective connecting portions 12 as shown in FIG. To the roller chain 8 so as to move in the opposite direction at the same time.

A trolley 7 with a rotating machine is provided with a loop-shaped sling chain 15 for supporting a workpiece 14 to be turned over via a chain wheel 13 driven by the rotating machine 6. Reference numeral 16 denotes a hanging handle provided on the work 14.
In the working order in the above embodiment, the gantry 1 is lifted by the lifting machine, moved onto the work 14 to be inverted, and the roller chain 8 stretched in a horizontal loop on the gantry 1 is rotated to form a pair of trolleys 7 with rotating machines. After adjusting the interval of 7 so as to correspond to the size of the work 14 to be reversed, the trolley 7
The loop-shaped sling chain 15 hung on the work 7 is set on the hanging hand 17 of the work 14 to be inverted, and then the gantry 1 is lifted by the lifting machine to suspend the work 14 to be inverted. At this time, since the gantry 1 is a suspended balance type, the work 14 and the gantry 1 are inclined when the work 14 is subjected to an eccentric load. However, the trolley 4 with the hanging portion of the gantry 1 is slid in a tilting direction to level the work 14, and the work 14 is leveled. Is confirmed, the rotating machine 6 is operated and the sling chain 15 causes the work 14 to be turned over.
Is rotated to move the sling chain 15, the work 14 to be reversed, which has been kept in a horizontal state, is rotated and reversed, and the gantry 1 is transported to a predetermined place by the lifting machine.

When a level 17 is provided on the gantry 1 in conjunction with the power cylinder 5, if the eccentric load work 14 is suspended by the level 17 and the gantry 1 is tilted, the level 17 on the gantry 1 is also tilted. Then, as shown in FIG. 6, the pendulum type dog 17a inside the leveler 17 has the L sensor 17b due to the action of gravity.
L sensor 17 with automatic balance switch ON
b senses the contact with the dog 17a, activates the power cylinder 5, slides the trolley 4 with a suspending portion in the eccentric load direction, and when the trolley 4 with the suspending portion moves to the combined center of gravity Z of the gantry 1 and the work 14, the horizontal position is obtained. Pendulum dog 17
a separates from the L sensor 17b and stops the power cylinder 5. When the dog 17a is away from the L sensor 17b, the C sensor 17c perpendicular to the gantry 1 senses, and when the C sensor 17c senses, the L sensor 17b
In addition, the R sensor 17d is interlocked to prevent chattering due to the rubbing of the gantry 1 in a horizontal state, the gantry 1 is restored to a horizontal state, and the work is also horizontal. Although FIG. 6 illustrates the case of the left eccentric load, the leveling is similarly performed in the case of the right eccentric load work.

Although the present invention has been described with reference to the first and second embodiments, the present invention is not limited to the above-described embodiments, but can be variously modified within the technical idea of the present invention. Needless to say, all of them belong to the technical scope of the present invention.

[0014]

As described above, the reversing machine according to the present invention comprises:
A trolley with a hanging portion for a hook movably provided on the upper surface of the gantry via a power cylinder, and a pair of trolleys movably provided in the opposite direction at the same time via a driving roller chain stretched in a horizontal loop on the lower surface of the gantry. Trolley with a rotating machine and a loop-shaped sling chain for a reversible support suspended via a chain wheel interlocked with the rotating machine of the trolley with the rotating machine, so that the work is performed by moving the trolley with a hanging portion. In addition, the trolley with rotating machine can be moved in the opposite direction at the same time, and the work can be suspended easily by changing the shape and dimensions of the work to be reversed. The function of moving the hanging part for a workpiece whose center of gravity is unknown,
The rotation function of the loop chain makes it easy to level the load in the X-axis and Y-axis directions of the work, and the work can be tilted in the whole direction arbitrarily. It can be applied to the manufacturing site of the building and the installation site such as outdoor civil engineering construction and overpass.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a partial explanatory view of a gantry cross section.

FIG. 5 is a perspective view showing the vicinity of a trolley with a hanging unit.

FIG. 6 is an explanatory diagram of a horizontal balance mechanism.

FIG. 7 is a front view showing a conventional example.

FIG. 8 is a side view of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stand 2 Hook 3 Hanging part 4 Trolley with hanging part 5 Power cylinder 6 Rotary machine 7 Trolley with rotating machine 8 Drive roller chain 13 Chainwheel 14 Work 15 Sling chain 17 Leveler

────────────────────────────────────────────────── ─── Continuing from the front page Examiner Yuji Shimizu (56) References JP-A-56-127588 (JP, A) Hira 2-37180 (JP, U) (58) Fields investigated (Int. Cl. ⁷⁾ , DB name) B66C 1/00-1/68 B66C 13/08

Claims (2)

(57) [Claims] 1. A gantry and a hanging with part trolley for movably provided with hooks through a Pawashirinda the upper surface of the cross-platform, <br/> horizontal loop at the lower surface of the pedestal between the two sprockets One driving roller chain stretched in a shape, and one side and the other of a loop of the driving roller chain
And the driving roller chain
A pair of trolleys with a rotating machine provided so as to be simultaneously movable in opposite directions by the rotation of the trolley, and a loop for supporting a workpiece to be inverted suspended via a chain wheel linked to the rotating machine of the trolley with the rotating machine. Reversing machine consisting of a sling chain. 2. The reversing machine according to claim 1, wherein a leveling device for detecting the inclination of the gantry is provided, and the power cylinder is interlocked with the leveling device.