초록 ▼

An improved process and apparatus for splicing a new web to a running web are proposed. The old web is cut off just behind the spliced point. Therefore, no tail is left on the web spliced. The running web is nipped at two points between two pairs of rolls. Because it is tight between the two points,

An improved process and apparatus for splicing a new web to a running web are proposed. The old web is cut off just behind the spliced point. Therefore, no tail is left on the web spliced. The running web is nipped at two points between two pairs of rolls. Because it is tight between the two points, a clear cut is possible with a single cutting blade.

대표청구항 ▼

A method for splicing the leading end of a standby web to a running web being continuously supplied from a roll, comprising the steps of: holding the leading end of the standby web adjacent a splice point at which the webs are to be spliced together and in position for splicing, the leading end havi

A method for splicing the leading end of a standby web to a running web being continuously supplied from a roll, comprising the steps of: holding the leading end of the standby web adjacent a splice point at which the webs are to be spliced together and in position for splicing, the leading end having adhesive means applied to one surface of the leading end of the standby web along the leading edge thereof; stopping the running web by gripping it between two rolls, at least one of which has a brake which is applied to brake said one roll at a point behind, relative to the direction of movement of the web, the splice point; clamping the running web at a point ahead of, relative to the direction of movement of the web, the splice point so that the web is held taut between the point ahead and the point behind; cutting the taut running web between said gripping and clamping points and at a position corresponding substantially exactly to the end of the splice which is toward the clamping point; then splicing the leading end of the standby web to the running web by pressing the cut end portion of the running web including the portion immediately adjacent the cut against the held leading end of the standby web with said adhesive means therebetween; and releasing the braked one roll for releasing the spliced web from the gripping and clamping thereof to permit it to start running.