Processing Contents

Slitting

• General Structure of the Slitter

  In many cases, raw rolls are generally wrapped around a “paper tube” made of paper or a “plastic core” made of ABS, PE resin, etc. as a support. It can be set in the unwinding part by passing the "shaft" through the tube or plastic core.
  Rolls on the pass line are generally metal rolls plated with hard chrome or rubber as the main material.
  In addition, there are many cases where "expander rollers" that are intentionally curved for the purpose of eliminating wrinkles are installed on the pass line.
  In addition, special rollers such as silicon rollers may be installed depending on the characteristics of the material to be cut.

• Optimum Cutting According to the Materials

  The slit blade used for cutting is a pair of upper and lower blades, and it is common to cut by passing the material between the upper and lower blades. called a "blade". By using different blade angles and materials according to the characteristics of the material to be cut, it is possible to further improve the quality of the product.
  In addition, depending on the material to be cut, the "share blade (round blade)" may not reach the target quality. Sometimes a "gang blade" is used which is suitable for slitting foil.
  "Gang blades" are blades that are rarely installed in factories due to versatility and management issues.

• Winding Section

  Like the unwinding section, the winding section has a support for winding up the product. It is common to use a "paper tube" made of paper or a "plastic core" made of ABS, PE resin, etc. There are two types of rewinding shafts, one and two. Ordinary paper is wound with one shaft, but films and adhesive tapes are often wound with two shafts. For those with a single winding shaft, there is a type that winds up on the shaft only (center drive) and a type that winds up while holding down one winding shaft with one upper and two lower rollers (three in total) (surface formula).