Lap splicing apparatus with the trailing tail end of the splice always on the same side

A lap splicing apparatus for lap splicing first and second webs together, with each of said first and second webs alternately constituting a running web and a new web to be spliced to the running web, said apparatus comprising:

• a frame;
• a first spindle mounted at a first fixed position on said frame for holding a roll containing the first web thereon;
• a second spindle mounted at a second fixed position on said frame for holding a roll containing the second web thereon;
• a single lap splicing device immovably mounted at a fixed position on said frame for lap splicing the first and second webs together with a trailing tail end of the lap splice always being on the same side, said single lap splicing device permitting the running web to pass therethrough at a first level and including:
• a lap splicing device frame;
• a holding device for holding a leading end of the new web;
• a moving device at a fixed position on the lap splicing device frame for moving the holding device between a first lap splicing position and a second position at which no lap splicing occurs, with the new web being held at a different, second level spaced from the running web in the second position such that the second level remains the same regardless of whether the running web is the first web or the second web;
• a cutting device for cutting the running web when the moving device moves the holding device to the first position to bring the new web into lay splicing contact with the running web during a lap splicing operation such that adhesive tape on the leading end of the new web adheres to the cut running web to lap splice the new web and the running web together, with the trailing tail end of the lap splice always being on the same side;
• a splice block;
• and
• a clamping device for clamping the running web to the splice block to prevent movement thereof at the time of a lap splicing operation, said clamping device including a clamp stud slidably extending through said holding device and having a clamp pad at a lower end thereof for clamping the running web to the splice block;
• a first transfer assembly mounted to the frame for bringing the first web to said lap splicing device;
• and
• a second transfer assembly mounted to the frame for bringing the second web to said lap splicing device.

A lap splicing apparatus for lap splicing first and second webs together, with each of said first and second webs alternately constituting a running web and a new web to be spliced to the running web, said apparatus comprising:

• a frame;
• a first spindle mounted at a first fixed position on said frame for holding a roll containing the first web thereon;
• a second spindle mounted at a second fixed position on said frame for holding a roll containing the second web thereon;
• a single lap splicing device immovably mounted at a fixed position on said frame for lap splicing the first and second webs together with a trailing tail end of the lap splice always being on the same side, said single lap splicing device permitting the running web to pass therethrough at a first level and including:
• a lap splicing device frame;
• a holding device for holding a leading end of the new web;
• a moving device at a fixed position on the lap splicing device frame for moving the holding device between a first lap splicing position and a second position at which no lap splicing occurs, with the new web being held at a different, second level spaced from the running web in the second position such that the second level remains the same regardless of whether the running web is the first web or the second web:
• and
• a cutting device for cutting the running web when the moving device moves the holding device to the first position to bring the new web into lap splicing contact with the running web during a lap splicing operation such that adhesive tape on the leading end of the new web adheres to the cut running web to lap splice the new web and the running web together, with the trailing tail end of the lap splice always being on the same side, said cutting device including:
• a knife blade pivotally mounted upstream of the holding device between a first pivoted position above the running web and a second pivoted position below the running web, such that the knife blade cuts the running web when moved from the first position to the second position;
• an arrangement for holding the knife blade stably in the first position or the second position;
• and
• a second moving device for moving the knife blade transverse relative to the first moving device between a first transverse position in line with the running web and a second transverse position out of line with the running web;
• a first transfer assembly mounted to the frame for bringing the first web to said lap splicing device;
• and
• a second transfer assembly mounted to the frame for bringing the second web to said lap splicing device.

A lap splicing apparatus for lap splicing first and second webs together, with each of said first and second webs alternately constituting a running web and a new web to be spliced to the running web, said apparatus comprising:

• a frame;
• a first spindle mounted at a first fixed position on said frame for holding a first roll containing the first web thereon, such that said first web leaves said first roll at a first orientation;
• a second spindle mounted at a second fixed position on said frame for holding a second roll containing the second web thereon, such that said second web leaves said second roll at said first orientation;
• a single lap splicing device mounted on said frame for lap splicing the first and second webs together with a trailing tail end of the lap splice always being on the same side;
• a first transfer assembly of rollers mounted to the frame for bringing the first web to said lap splicing device, said rollers of said first transfer assembly being oriented to turn said first web by at least one angle from said first orientation such that said first web is at a first level when constituting said running web and at a different, second level when constituting said new web prior to a lap splicing operation, with said new web moving from said second level to said first level after a lap splicing operation;
• and
• a second transfer assembly of rollers mounted to the frame for bringing the second web to said lap splicing device, said rollers of said second transfer assembly being oriented to turn said second web by at least one angle from said first orientation such that said second web is at said first level when constituting said running web and at said second level when constituting said new web prior to the lap splicing operation, with said new web moving from said second level to said first level after the lap splicing operation.

A lap splicing apparatus for lap splicing first and second webs together, with each of said first and second webs alternately constituting a running web and a new web to be spliced to the running web, said apparatus comprising:

• a frame;
• a first spindle mounted at a first fixed position on said frame for holding a roll containing the first web thereon, such that said first web leaves said first roll at a first orientation;
• a second spindle mounted at a second fixed position on said frame for holding a roll containing the second web thereon, such that said second web leaves said second roll at said first orientation;
• a single lap splicing device immovably mounted at a fixed position on said frame for lap splicing the first and second webs together with a trailing tail end of the lap splice always being on the same side;
• a first transfer assembly of rollers mounted to the frame for bringing the first web to said lap splicing device, said rollers of said first transfer assembly being oriented to turn said first web by at least one angle from said first orientation such that said first web is at a first level when constituting said running web and at a different, second level when constituting said new web prior to a lap splicing operation, with said new web moving from said second level to said first level after a lap splicing operation;
• and
• a second transfer assembly of rollers mounted to the frame for bringing the second web to said lap splicing device, said rollers of said second transfer assembly being oriented to turn said second web by at least one angle from said first orientation such that said second web is at said first level when constituting said running web and at said second level when constituting said new web prior to the lap splicing operation, with said new web moving from said second level to said first level after the lap splicing operation.