Self-adjustment control method for return hammer of die-casting machine

Abstract

The invention provides a self-adjustment control method for a return hammer of a die-casting machine, which relates to the technical field of die-casting machines and comprises the following steps of: setting a preset deceleration position, so that a hammer head is buffered to a return hammer limiting point at a preset buffer flow after being uniformly decelerated to a preset position; judging whether the hammer is stuck or not, and if yes, prompting; otherwise, acquiring buffer hammer return data; the initial hammer return flow of the hammer head is obtained, and the actual hammer return buffer position and the actual buffer deceleration amount are automatically generated; in the buffering process of the hammer head, when the real-time displacement of the hammer head is too small, the buffering flow of the hammer head is increased, and if the real-time displacement of the hammer head is still too small, an alarm prompt is given. By setting the initial flow of the return hammer and adjusting the buffer position and the buffer flow of the return hammer, the return limit impact sound of the hammer head is effectively reduced, the service life of the injection rod is prolonged, the situation that the resistance is too large in the buffer process of the return hammer can be sensed, the unnecessary shutdown risk caused by abnormal resistance of the clamping hammer is reduced, the return hammer efficiency is higher, and the service life of the injection rod is prolonged. And the hammer returning safety is better.

Description

technical field [0001] The invention relates to the technical field of die casting machines, in particular, the invention relates to a self-adjustment control method for the return hammer of a die casting machine. Background technique [0002] The die casting machine is a machine used for pressure casting. The molten metal or plastic is hydraulically injected into the mold through a hammer to cool and form. After the mold is opened, a solid casting can be obtained. During the operation, the hammer head of the die-casting machine needs to move back and forth, and the process of the hammer head returning to the initial position after the die-casting operation is called a hammer; After that, the position is cleared, and the next action is performed according to the die-casting process control flow. [0003] The injection rod of the die-casting machine is equipped with two actuators: 1) Incremental encoder, which records the displacement pulse of the magnetic scale and converts...

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned return hammer method has the following disadvantages: it can only sense whether the die-casting machine has reached the limit point of the return hammer, but cannot sense the buffer position during the return hammer process and the buffer flow of the return hammer, and cannot monitor the abnormal movement of the return hammer. If the setting is too large, it will increase the hammer return time; if the buffer position is set too small, it will cause the impact sound of the hammer back limit; There is a knocking sound in the position, and there is even a risk of not being able to return to the position, causing a shutdown alarm and affecting production

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