Apparatus for cutting
AssigneeTamarack Products, Inc.
InventorDonald J. Steidinger
Life of this patent
Estimating the term…
Abstract
Apparatus for cutting web material in which blade and anvil rolls cooperate, the blade roll having a slot in which a blade-equipped bar is mounted and equipped with springs for exerting both generally radially outward and generally circumferentially resilient forces on the bar and blade and in which friction means are operably associated with the blade for inhibiting axial movement of the blade.
Claims11
Apparatus for cutting web material comprising a frame, a blade roll rotatably mounted on said frame, an impression roll rotatably mounted on said frame adjacent said blade roll,
- said blade roll being equipped with an axially-extending slot having a radially inward generally circumferentially-extending bottom wall spaced generally radially-extending side walls,
- a blade-supporting bar mounted in said slot having a bottom wall adjacent from said slot bottom wall, said bar being equipped with generally circumferentially-extending integral ledge means adjacent said bar bottom wall,
- a blade mounted on said ledge means and interposed between said bar and one sidewall of said slot, and
- spring means operatively associated with said blade roll bearing against said bar for exerting both generally radial nd circumferential forces against said bar to clamp said blade while providing a radially resilient mounting for said blade during cutting, but when not cutting, said spring means providing only about sufficient clamping torque to present said blade from falling out of said slot, and
- friction means operably associated with said blade for inhibiting axial movement of said blade.
Apparatus for cutting web material comprising a frame, a blade roll rotatably mounted on said frame, an impression roll rotatably mounted on said frame adjacent said blade roll,
- said blade roll being equipped with an axially-extending slot having a radially inward generally circumferentially-extending bottom wall and spaced generally radially-extending side walls,
- a blade-supporting bar mounted in said slot having a bottom wall adjacent from said slot bottom wall, said bar being equipped with generally circumferentially-extending integral ledge means adjacent said bar bottom wall,
- a blade mounted on said ledge means and interposed between said bar and one sidewall of said slot, and
- spring means operatively associated with said blade roll bearing against said bar for exerting both generally radial and circumferential forces against said bar to clamp said blade while providing a radially resilient mounting for said blade during cutting but when not cutting, said spring means providing only about sufficient clamping torque to present said blade from falling out of said slot, and
- friction means operably associated with said blade for inhibiting axial movement of said blade, said friction means including a high friction surface on said one sidewall of side slot.
Apparatus for cutting web material comprising a frame, a blade roll rotatably mounted on said frame, an impression roll rotatably mounted on said frame adjacent said blade roll,
- said blade roll being equipped with an axially-extending slot having a radially inward generally circumferentially-extending bottom wall and spaced generally radially-extending side walls,
- a blade-supporting bar mounted in said slot having a bottom wall adjacent from said slot bottom wall, said bar being equipped with generally circumferentially-extending integral ledge means adjacent said bar bottom wall,
- a blade mounted on said ledge means and interposed between said bar and one sidewall of said slot, and
- spring means operatively associated with said blade roll bearing against said bar for exerting both generally radial and circumferential forces against said bar to clamp said blade while providing a radially resilient mounting for said blade during cutting but when not cutting, said spring means providing only about sufficient clamping torque to prevent said blade from falling out of said slot, and
- friction means operably associated with said blade for inhibiting axial movement of said blade, said bar having a wall in confronting relation to said blade, said friction means including a high friction surface on said bar confronting wall.
Apparatus for cutting web material comprising a frame, a blade roll rotatably mounted on said frame, an impression roll rotatably mounted on said frame adjacent said blade roll,
- said blade roll being equipped with an axially-extending slot having a radially inward generally circumferentially-extending bottom wall and spaced generally radially-extending side walls,
- a blade-supporting bar mounted in said sloth having a bottom wall adjacent from said slot bottom wall, said bar being equipped with generally circumferentially-extending integral ledge means adjacent said bar bottom wall,
- a blade mounted on said ledge means and interposed between said bar and one sidewall of said slot, and
- spring means operatively associated with said blade roll bearing against said bar for exerting both generally radial and circumferential forces against said bar to clamp said blade during cutting, but when not cutting, said spring means providing only abut sufficient clamping torque to prevent said blade from falling out of said slot, and
- friction means operably associated with said blade for inhibiting axial movement of said blade, said friction means being harder than said blade to bitingly engage said blade.
Dependencies are inferred from the claim text.