Zeng Hsing Industrial Co., Ltd.

Chia-Hung Chen

Yi-Chung Chen

Hsin-Hau Lin

Wei-Lun Chen

An operating method for computerized machine embroidery includes steps of: (a) transmitting two portions of the stitch data sets respectively into a first storage section and a second storage section; (b) embroidering according to the portion of the stitch data sets in the first storage section; (c) after completion of step (b), the embroidery machine erasing data from the first storage section; (d) after completion of step (c), the transmitting a remaining portion of the stitch data sets to the first storage section; (e) after completion of step (b), embroidering according to the portion of the stitch data sets in the second storage section; and (f) repeating step (b) after completion of steps (d) and (e).

Operating method for computerized embroidery machine

A sewing machine includes a driving unit, a throat plate, a pressing unit, a detecting unit and a control unit. The detecting unit includes a housing mounted to a connecting module of the pressing unit, a track ball rotatably disposed on the housing, and adapted for contact with a fabric placed on the throat plate, and a plurality of Hall-effect sensors disposed in the housing such that, when the fabric is moved on the throat plate, the track ball rotates relative to the fabric and the housing, so that a rotational speed of the track ball is detected by the Hall-effect sensors. The control unit is disposed for controlling a moving speed of a needle bar of the driving unit corresponding to the rotational speed of the track ball.

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Taichung, Taiwan

Chia-Hung Chen