Method and apparatus for mounting a master plate on a printing drum having an integral cutter

A method for mounting a stencil master plate sheet around a printing drum, comprising the steps of:

• engaging a leading edge of a continuous stencil master plate sheet fed from a stencil master plate feeding means on an outer circumferential surface of said printing drum before said stencil master sheet is wrapped around said outer circumferential surface of said printing drum;
• rotating said printing drum;
• applying a certain tension to said stencil master plate sheet as it is wrapped around said rotating printing drum;
• and
• cutting said stencil master plate with cutting means provided on said outer surface of said printing drum so as to define a trailing edge of said stencil master plate sheet mounted on said printing drum as said stencil master plate sheet is mounted on said printing drum.

A method for mounting a stencil master plate sheet around a printing drum, comprising the steps of:

• engaging a leading edge of a continuous stencil master plate sheet fed from a stencil master plate feeding means on an outer circumferential surface of said printing drum before said stencil master sheet is wrapped around said outer circumferential surface of said printing drum;
• rotating said printing drum;
• applying a certain tension to said stencil master plate sheet as it is wrapped around said rotating printing drum;
• and
• cutting said stencil master plate sheet with cutting means provided on said printing drum so as to define a trailing edge of said stencil master plate sheet mounted on said printing drum, wherein said tension is applied to said stencil printing device by selecting a nominal circumferential speed of said printing drum to be slightly faster than a speed of feeding said stencil master plate sheet from said stencil master plate sheet feeding means.

A method for mounting a stencil master plate sheet around a printing drum, comprising the steps of:

• engaging a leading edge of a continuous stencil master plate sheet fed from a stencil master plate feeding means on an outer circumferential surface of said printing drum before said stencil master sheet is wrapped around said outer circumferential surface of said printing drum;
• rotating said printing drum;
• applying a certain tension to said stencil master plate sheet as it is wrapped around said rotating printing drum;
• and
• cutting said stencil master plate sheet with cutting means provided on said printing drum so as to define a trailing edge of said stencil master plate sheet mounted on said printing drum, and slightly retracting a part of said stencil master plate sheet on a side of said stencil master plate feeding means immediately after cutting said stencil master plate sheet to define said trailing edge with said cutting means.

A device for mounting a stencil master plate sheet around a printing drum of a rotary stencil printing device, comprising:

• a printing drum;
• clamping means mounted on said printing drum for clamping a leading edge of said stencil master plate sheet before said stencil master sheet is wrapped around said outer circumferential surface of said printing drum;
• rotating means for rotating said printing drum for wrapping said stencil master plate sheet around an outer circumferencial surface of said printing drum;
• stencil master plate sheet feeding means for feeding said stencil master plate sheet to said printing drum, and applying a tension to said stencil master plate sheet as it is wrapped around said printing drum;
• and
• stencil master plate cutting means provided on said outer circumferential surface of said printing drum for cutting said stencil master plate sheet by a prescribed length to define a trailing edge of said stencil master plate sheet as said stencil master plate sheet is mounted on said printing drum.