FABRIC MARKING DEVICE FOR FOLDABLE DUCT MANUFACTURING

The present invention relates to a fabric marking apparatus for manufacturing a duct, and a fabric marking apparatus for manufacturing a duct which a fabric and a wire are connected with each other, and comprises: an input unit for receiving the length of a duct; a fabric support bar arranged in a supply path in which the fabric is supplied to a duct forming unit for supporting a fabric in the widthwise direction; an encoder for measuring a supplied length of the wire; a marking pen arranged in the front of the fabric support bar for marking on the fabric; a pen transfer unit for transferring the marking pen between a standby location separated from the fabric and a marking location which the marking pen marks while being in contact with the fabric; and a control unit for calculating the length of a fabric required for manufacturing the duct and the length of the wire based on the length of the duct inputted in the input unit and controlling the pen transfer unit to mark a marking on the fabric at a time point which the supplied length of the wire measured in the encoder corresponds to the calculated length. The pen transfer unit is combined with a lower part of the marking pen, and includes: an X-axis transfer unit arranged in the direction perpendicular to the X-axis transfer unit for transferring the marking pen in the X-axis direction and a Y-axis transfer unit for transferring the marking pen. [Reference numerals] (170) Wire supply unit; (250) Input unit; (260) Encoder; (270) Control unit