Forming metal mould and its section displacing method

Abstract

SOLUTION: A fixed insert 16, a movable insert 18, an extrusion plate 21 and a slide core 23 as exclusive units N are automatically attached / detached to / from a fixed main die 15, a movable main die 17, an extrusion rod 19 and a slide holder 22 as general purpose units M by attaching / detaching mechanisms 31, 32, 81 and 104, and the fixed insert 16, the movable insert 18, the extrusion plate 21 and the slide core 23 as the exclusive units N are integrated with each other by a connection mechanism 61 in a die closing manner. By utilizing a transverse feeding means 141 of p setup device and the die opening / closing motion on the forming machine side, the exclusive units N are automatically detached from the general purpose units M in a condition of a collected body NN, and the collected body NN of the exclusive units carried inside the forming machine from the outside of the forming machine is automatically attached to the general purpose units M.

Description

Technical field [0001] The present invention relates to a molding metal mold used for various castings such as die casting, low pressure casting, gravity casting, and injection molding, blow molding, and the like, and a method for replacing them in stages. Background technique [0002] In recent production lines, multi-variety and low-volume production has become common, and the cycle of metal mold replacement has become very short. In addition, products formed by casting, injection molding, etc. are also becoming more complicated or larger. As a result, the life of the metal mold is inevitably shortened and the frequency of replacement is increased. In particular, in die-casting, the high-temperature metal solution is filled into the metal mold at a high speed and high pressure, which intensifies the loss of the metal mold, and a situation arises where the metal mold must be replaced quite frequently. [0003] Therefore, recently, the metal mold components such as the fixed mold...

AI Technical Summary

Problems solved by technology

[0004] However, according to the above-mentioned conventional block replacement method in which only the special-purpose part is replaced, the general-purpose part and the special-purpose part are integrated, removed from the molding machine, and moved outside the molding machine to replace the special-purpose part. However, there is still a complicated work of disassembling the general-purpose part from the molding machine. Especially in the case of die-casting metal molds, it is also necessary to disassemble and assemble the complicated cooling system and control system for in-mold cooling, which brings about a situation that can hardly shorten the overall cost. The problem of segment replacement time

In addition, for example, in the case of obtaining a large and complicated die-casting part such as a cylinder block, the overall weight of the metal mold is heavy (as an example, about 196kN ... 20 tons) and the size is large due to the need for a sliding plate. (As an example, it is about 2 meters). It is not only troublesome to disassemble from the molding machine, but also needs to be inserted and inserted to connect the connecting rod for connecting the fixed part and the movable part. Therefore, it is very effective to shorten the replacement time by sections bad question

[0005] In addition, in the structure described in Japanese Patent Laid-Open No. 6-190531, although the general-purpose part is still kept in the molding machine, only a part (core) of the special-purpose part is replaced. Because of the special-purpose part, it is necessary to carry out the connection work in the molding machine with limited space, which inevitably brings about the problem of poor workability and unsafe work.

In addition, since the bolts are connected from the front of the special part, it is not suitable for the special part whose front is the cavity forming surface, so the scope of application is limited.

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