Quick die replacement mechanism for low pressure casting machine

Abstract

The invention relates to a quick die replacement mechanism for a low pressure casting machine. The mechanism comprises a frame (1), an upper die fixing plate (2), a lower die (3), a lower die fixing plate (4), an upper die (6), hydraulic oil cylinders (8), bolts (9) and latches (10), wherein two groups of hydraulic locking mechanisms are symmetrically arranged on each of the upper die fixing plate (2) and the lower die fixing plate (4). The mechanism is characterized in that the bolts (9) are pulled to be separated from the latches (10) by the hydraulic oil cylinders (8), so that the dies are separated from the fixing plates, and on the contrary, the bolts (9) are pushed to be inserted into the latches (10) by the hydraulic oil cylinders (8), so that the dies are locked on the fixing plates. The locking mechanisms are appropriately added on the basis of the conventional low pressure casting machine, so that die replacement time is shortened from at least half an hour to at most ten minutes, time and labor are greatly saved, the utilization rate of equipment is improved to the greatest extent, and the dies are quickly replaced.

Description

Technical field [0001] The invention belongs to the technical field of metal casting equipment, and particularly relates to a quick mold changing mechanism of a low pressure casting machine. Background technique [0002] With the increasing competition in the market, the replacement of various casting products is becoming faster and faster, and there are more and more coexisting varieties. The production of multiple varieties, small and medium batches, and mixed-flow just-in-time production will become the mainstream, especially for the automotive industry. Of enterprises, no matter what kind of casting products, must provide qualified products for different models in parallel, complete sets and on time. Therefore, the mold replacement interval will become shorter and shorter, and the frequency of mold replacement will become higher and higher. The downtime of the corresponding low-pressure casting machine will greatly increase, which will seriously affect the production efficien...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of inefficiency of manually loosening or tightening the bolts one by one with tools when the low-pressure casting machine replaces the mold, the purpose of the present invention is to provide a quick mold-changing mechanism for the low-pressure casting machine, which is fixed on the upper mold fixing plate and the lower mold A set of hydraulic locking mechanism is added to the fixed plate, which only needs to be operated by the external button. After the hydraulic lock is released, the mold can be quickly disassembled. When installing a new mold, only after the mold is in place, the external button is operated and the hydraulic locking mechanism is sufficient. Automatically lock the mold to achieve the purpose of fast, labor-saving and safe

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