FLYING JOINING DEVICE FOR BAND-SHAPED SHEET MATERIAL

PURPOSE:To permit sure joining of band-shaped sheet material during rolling and to improve the joined state thereof by providing carriages which are self-travelable in synchronization with the pass speed of the band-shaped sheet materials and joining the tail end of the preceding band-shaped sheet material and the top end of the succeeding band-shaped sheet material to each other with a joining machine. CONSTITUTION:This flying joining device is constituted of the the front traveling carriage 11, the rear traveling carriage 11', a connecting device 12, a flying driving device 13, the joining machine 14 and clamping devices 15, 15'. The flying joining device is set to a prescribed position on an intermediate roller table 5. The pass speed of the succeeding band-shaped sheet material 3b is then controlled by a speed controller to press the top end thereof to the tail end of the preceding band-shaped sheet material 3a and to synchronize said speed with the pass speed of the preceding band-shaped sheet material 3a. While the carriages 11, 11' are made to make self-traveling by the device 13, the joining center X of the joining machine 14 and the joining ends of the two materials 3a, 3b are aligned and the materials 3a, 3b are joined by the machine 14. The sure joining of the band-shaped sheet materials is executed and the joining state is improved by such device.