Mercerizing machine selvage detection device

The utility model relates to a mercerizing machine selvage detection device, which comprises a stander (1), wherein the stander (1) is provided with a vertical arm (1.1) and a horizontal arm (1.2), and the near end of the horizontal arm (1.2) is connected with the upper part of the vertical arm (1.1), and is characterized in that the remote end of the horizontal arm (1.2) is provided with a selvage detection board (2), and photoelectric switches (3) are arranged above the selvage detection board (2) in the vertical direction. The quantity of the photoelectric switches is two. The traditional mechanical contact form is changed to the photoelectric control, thereby being free from shoot root, so the cloth is difficult to drop off a cloth clip; moreover, no shoot root exists, the spring and the shell for holding the shoot root are not required; and even working in the environment of the concentrated alkaline, the device is uneasy to be corroded, thereby the utility model has wide application range, high accuracy