Abstract: The invention relates to a device for automatically changing threadlike materials in a thread processing machine, comprising connecting means to connect a first thread (100) being guided from a supply to said thread processing machine, with a second thread (200) and cutting means (127) to cut said first thread through between the connecting point of the threads and the supply. The problem of the present device is, that the thread (100, 200) does not stay in a position to be selected after it has been cut through and clamped. Therefore the device (1) according to the invention is provided for keeping the first thread (100), originating from the supply, within reach of the connecting means (8, 9) after it has been cut through, in order to keep said first thread (100) in a position.