给出了弯制环形零件的滑板式弯曲模实用结构，论述了模具工作原理。

A practical structure of slide plate type of bending die has been presented for forming of ring parts with description of the operating principle of the die.

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该弯曲模采用浮动模块和复合运动的滑板，使环形零件在压力机一次行程中成形，工作效率高。

The vertically float die block and slide plate of combination movement have been adopted in the die to form a ring part on a single stroke of the press with high productivity.

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针对一种细、长且薄的管状零件的注塑成型，给出了一种一模四件、环形浇注的成功实例。

This paper aimed at the injection forming of a kind of thin and long plastic tube, and it also gives a successful example of one mould for four parts and loop injection.

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