Importance

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Abstract

The present invention provides a removable marking device for a mold which includes a substantially cylindrical outer member fitted into the mold, an axially rotatable indicator fitted into the outer member and indications formed on top surfaces of the outer member and the indicator which is formed by an indication portion facing an inner surface of the mold and a screw portion extended from the indication portion, the outer member having a three-stepped bore which has an upper bore portion, a middle bore portion extending from the upper bore portion of a cross-sectional dimension larger than that of the upper bore portion and a lower bore portion extending from the middle bore portion of a cross-sectional dimension larger than that of the middle bore portion, the indicator inserted into the bore with the indication portion arranged in the upper bore portion and the screw portion arranged into the middle bore portion, a cover member inserted to the lower bore portion and clinging to the outer member, a nut threaded to a lower end of the screw portion of the indicator, a spring interposed above the nut within the middle bore portion, and the indicator biased downwardly by the spring in combination with the nut. Making use of the present removable marking device for a mold, molded products each having an even surface with no irregularity can be formed, and indications can be readily changed.

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First Claim