JPS60244426A - Replacing device of metallic die for bending machine - Google Patents

Abstract

PURPOSE:To reduce the number of replacements of metallic dies and to perform the replacement simply by providing a hinge type storing part and fixed type storing part and by keeping the hinge type and fixed type separately. CONSTITUTION:When three units B, C, D of metal dies among metal dies A, B, C, D, E... arranged to a bending machine 1 are unnecessary, the hinge type A of the endmost part is slid and introduced to a hinge type storing part 7 of a metal die replacing device 5 and kept temporarily. The metal dies B-D which became unnecessary are then slid and introduced to a fixed type storing part 9 of the device 5. The hinge type A is then taken out again from the storing part 7 and set so as to adjoin the metal die E remaining at a metal die fitting part 3 of the bending machine 1. In this case the positioning of the metal die is performed based on the reference line R/L of the metal die fitting part 3. In th is way, a new metal die having a hinge type A at both ends for a box bending is combined by shorting to the prescribed width.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic mold changing device used for a bending machine, and more particularly to a mold changing device used for bending the edge of silver and gold into a C-shape.

Conventionally, mold changing devices in bending machines have been configured to change the mold all at once over the entire length of the mold, or when bending the short side in box bending, the mold is divided by an unnecessary width from a part of the center. The structure was such that it could be removed and narrowed to the desired dimensions. However, replacing the entire mold is wasteful, and even when replacing only a part of the center, split molds must be prepared in pairs symmetrically and replaced at the same time, which means that the amount of money that should be stored is There was a problem that the number of molds increased and it became complicated.

This invention was made in view of such conventional problems, and it is installed close to the side end of the bending machine and replaces the unnecessary fixed mold with the hinge mold at the necessary end. To provide a mold changing device for a bending machine that can be stored separately and replaced with a mold of a specified width by taking out unnecessary molds until they reach a specified size and then setting the hinge mold again. The purpose is to

The embodiment shown in the figures will be explained in detail below. FIGS. 1 and 2 show one embodiment, in which a mold changing device 5 is installed on one side of a bending machine 1 adjacent to a mold mounting section 3. FIG. This mold changing device 5 is provided with a hinged housing part 7 and a fixed mold housing part 9 in two orthogonal directions, and the housing parts 7 and 9 are arranged in two orthogonal directions.
is provided with a locking groove 11 that can slidably lock a locking hook (not shown) formed on the upper surface of each of the divided molds A, B, C, . . . .

Hinge type A at both ends of the molds A, B, C, ...
As shown in FIG. 3, the leg portion 15 is connected to the main body 17 by a hinge 13 so as to be openable and closable, and a C-shaped bent portion 19 is formed on the short side of the silver-gold P for box bending. When the mold is later cut upward, the leg portion 15 is configured to rotate downward and come out of the C-shaped bent portion 19 upward, as shown by the chain line in the figure. This hinge type A is always necessary at the end for bending the short side when bending the box. The fixed molds B, C, D, etc. are used in a combination that corresponds to the bending width of the silver and gold, and the other molds are unnecessary and should be stored in the fixed mold storage section 9. be.

The operation of the mold changing device 5 having the above configuration will be explained next. Molds A, B, and C are installed at bend 811.

When molds B, C, and D out of D, 1, and so on are no longer needed, first slide the hinge mold A at the end and introduce it into the hinge mold accommodating part 7 of this device 5 and temporarily remove it. I will keep it for a while. Next, molds B and C are no longer needed.

Slide D and introduce it into the fixed housing part 9 of the device 5. Thereafter, as shown by the imaginary lines in FIG. 1, the hinge mold A is again taken out from the accommodating part 7 and installed so as to be adjacent to the mold E left in the mold mounting part 3 of the bending machine 1. At this time, the positioning of the mold is performed using the reference line R/L of the mold mounting section 3 as a reference.

In this way, a new mold is assembled which is shortened to a predetermined width and has hinge molds A at both ends for box bending.

On the other hand, when it is necessary to lengthen the total length of the mold, first store the hinge mold A in the hinge mold accommodating part 7, and after 1C, take in molds B, C, and D of the required width from the fixed mold accommodating part 9, and finally Then install the hinge type Δ again.

FIG. 4 shows another embodiment, in which the hinged housing part 7 is provided in parallel with the mold installation line of the bending machine 1, and the fixed mold housing part 9 is provided in a direction perpendicular thereto.

In FIG. 5, the mold changing device 5 is of a rotary type, and a mold accommodating portion 23.23°... is provided on a rotating disk 21.
This is an embodiment in which the disk 21 can be rotated in either forward or reverse directions.

In this invention, a hinge type storage part and a fixed type storage part are provided so that the hinge type is stored separately from the fixed type.
If it is necessary to change the width of the mold during box bending,
The hinge mold is housed in the hinge mold accommodating part, the fixed mold is increased or decreased in the mold mounting part by the required width, and then the hinge mold is set again at the end. The feature is that the number of mold replacements is small, and mold replacement can be done easily.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a front view of the same, and FIG. 3 is a front view of a hinge type used in the same.
FIG. 4 is a plan view of another embodiment, and FIG. 5 is a plan view of still another embodiment. DESCRIPTION OF SYMBOLS 1... Bending machine 3... Mold mounting part 5... Mold exchange device/device 7... Hinge mold accommodating part 9.
・・Fixed housing part

Claims (1)

[Scope of Claims] ■ A bending machine comprising a hinge-type accommodating section that accommodates a hinged die for bending the end portion of the bending machine in a manner that can be freely taken out and put in, and a fixed-type accommodated section that accommodates a fixed die that can be freely taken out and taken out. mold changing equipment. (2) The mold changing device for a bending machine as set forth in claim 1, characterized in that it comprises a hinge type accommodating portion and a fixed type accommodating portion in two orthogonal directions. (2) A mold changing device for a bending machine as set forth in claim 1, characterized in that a hinge type accommodating portion and a fixed type accommodating portion are provided on a rotating disk.