JPH03264Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to an improvement of a jig for inverting a forging die used in forging.

(Problems to be solved by conventional techniques and ideas) Conventionally, when inverting molds for mold making, the molds are heavy and difficult to handle, so a crane or the like is used to invert them. There is. When using this crane, etc., a hole is drilled on one side of the mold for the insertion of a lifting fitting, but if this hole is drilled in the mold part, it may damage the mold or damage the manufactured product. To avoid this, two holes are drilled in the lower part of the side of the mold, and a rod-shaped hanging metal fitting is fitted to this, and a wire is engaged with this to make a hoist crane, etc. Then, one side of the mold is lifted up and in a lightened state, and the center of gravity of the mold is manually changed using the corner of the stand, a chisel, etc., and the mold is turned over. However, such reversing work is dangerous for safety.

(Means for solving the problem) The present invention improves the conventional reversing jig and develops a mold reversing jig for safety and simplification of reversing work. However, in a mold having at least two holes on one side, two holes corresponding to the two holes and the two holes are considered as one side, and a third hole is placed beyond the center of the side. a reversing plate having the above-mentioned reversing plate on the surface of the mold, a rod-shaped metal fitting that is fitted into each of the two holes, and a rod-shaped metal fitting that is fitted into the third hole. A mold comprising: a wire that is engaged with at least one of the two rod-shaped metal fittings and the third hole metal fitting, and the mold is reversed by pulling up the wire with a crane. It is a reversing jig.
The reversing plate may be square, triangular, T-shaped, or L-shaped, and must have at least two holes corresponding to at least two holes in the mold, depending on the mold size. It is enough if you can utilize each hole. Furthermore, the third hole may be drilled in plural numbers to suit the mold size, and does not need to be drilled on the same plane as the above two holes. . In order to prevent the reversing plate from coming off during lifting, the rod-shaped metal fittings corresponding to the two holes may be bolt-shaped and fit into bolt screws in the holes of the mold. Moreover, the rod-shaped metal fitting fitted into the third hole may also be a bolt screwed into the side surface of the mold of the reversing plate.

(Operations and Effects) The mold reversing jig according to the present invention has a reversing plate attached to the mold reversing jig, which is dangerous due to the inability to drill a third hole in the mold itself. A third hole is provided in this without affecting the mold part, making it possible to change the center of gravity easily and without danger. The reversing plates with bolts screwed into the three holes from the inside are placed one on top of the other, and the bolts are screwed into the two holes of the mold through the corresponding two holes to fix the reversing plate to the mold. then one of said two bolts;
The mold is inverted while one side of the mold is lifted by engaging the wire with the third bolt or only with the third bolt and lifting the other end with a crane. When using this jig,
Reversing work can be done easily and without danger. In the above explanation, bolts were used, but even if a simple rod-shaped metal fitting is used by fitting it into a deep hole, the reversing plate may come off from the mold or the rod-shaped metal fitting may come off during the reversing operation. There is no danger of falling due to failure.

(Example) An example of the present invention will be described based on the drawings.

FIG. 1 shows one embodiment of the present invention, in which A is an explanatory perspective view and B is a plan view of a reversing plate. 1 is a mold, 2 is a reversing plate, and 3 is a hole bored in the reversing plate 2 corresponding to the hole in the mold. 4 is the reversing plate 2
This is the third hole drilled in the hole. 5 is a rod-shaped metal fitting that is fitted into the hole of the mold 1 and the hole 3; 6 is a third hole 4;
It is a rod-shaped metal fitting that is fitted into the

Place the reversing plate 2 on the surface of the mold 1 where the holes are drilled.
The holes 3, 3 are made to correspond to the holes in the mold, and the overlapping rod-shaped metal fittings 5, 5 are inserted into the holes 3, 3 and the mold hole respectively.

The rod-shaped metal fitting 6 is inserted into the third hole 4 of the reversing plate 2. Next, one end of the wire 7 is tied to one of the rod-shaped metal fittings 6, and is hung via the rod-shaped metal fitting 6 to a hollow crane hook 8 closer to the rod-shaped metal fitting 5 from the center of the mold 1, and the crane is moved. When activated and the wire 7 is pulled up, the mold 1 is reversed 90 degrees clockwise as shown in FIG. 1A. Next, the wire 7 is removed from the hook 8 and the rod-shaped metal fitting 5 is removed.
The knot is untied. Next, rod-shaped metal fittings 5, 5,
6 are pulled out, and the reversing plate 2 is removed from the mold 1. In this manner, during the reversal, the operator does not need to be close to the mold 1, and there is no danger due to the reversal operation. Furthermore, if set as described above, it can be easily reversed by simply operating the crane and pulling up the wire 7.

FIG. 2 shows another embodiment of the present invention, in which the reversing plate 2 has a T-shape, and the third hole 4 is connected to the hole 3,
It is not drilled in the same plane as 3, but passes through the thickness of the reversing plate 2. A rod-shaped metal fitting 6 passes through the hole 4, and wires 7 are engaged with both ends of the rod-like metal fitting 6, and the metal mold 1 is turned over clockwise in FIG. 2A by being hung on a hook 8 of a crane.

[Brief explanation of the drawing]

1 and 2 show different embodiments of the present invention,
A is an explanatory perspective view, B is a plan view of the reversing plate,
FIG. 3 is an explanatory diagram of a conventional technique. 1: Mold, 2: Inversion plate, 3, 4: Hole, 5,
6: Bar metal fittings, 7: Wire, 8: Crane hook.

Claims (1)

[Scope of utility model registration request] A mold having at least two holes on one side, two holes corresponding to the two holes, and an inversion having the two holes as one side and a third hole beyond the center of the side. the reversing plate is superimposed on the surface of the mold, a rod-shaped metal fitting that is fitted into each of the two holes, and a rod-shaped metal fitting that is fitted into the third hole, A mold reversing jig, characterized in that the mold is reversed by engaging a wire with at least one of the metal fittings and pulling up the wire with a crane.