The utility model discloses a (gate)wedge layering closing device, it includes the stretching -drawing machine frame, sliding connection has the two opposite side outside that sets up guidance tape mould in orbit relatively and by the synchronous stretch -draw of going up and down of the dynamic mechanism driving frame that slides on the stretching -drawing machine frame, and stretch -draw is slided the stretch -draw that is connected with on the frame by combining dynamic mechanism driving to slide along the stretching -drawing machine frame inside and outside and is combined to put up, the device is gone into to the taper liner hammer that still is equipped with on stretch -draw combines to put up between the fixed swash plate that slides about being driven by power device and can possess the ring platform and the track matrix of taper liner hammer income stretch -draw pole, taper liner personally experiences sth. Part of the body and has the elongated slot that supplies the reinforcing bar to pass from its bottom including at least two taper liner body that links to each other from top to bottom, taper liner. The utility model discloses can be quick and accurate put into taper liner automatically after stretch -draw, thereby it keeps unanimous and effectively guarantees track board production quality and the advantage that improves labor efficiency to have the prestressing force of guaranteeing the multilayer steel muscle.