An assembly for cutting a polystyrene block includes a lever element, adapted to be coupled to a hot cutting element, and a control device connected thereto. The lever is arranged so that a potential inclination of the hot cutting element can be followed during the feed motion of the cut, the lever further cooperating with a sensor set to detect a potential inclination deviation of the lever during the cut, in relation to an initial reference inclination, the control device being set to vary feed motion speed depending on the detected variation of inclination.

An assembly for cutting a polystyrene block includes a lever element, adapted to be coupled to a hot cutting element, and a control device connected thereto. The lever is arranged so that a potential inclination of the hot cutting element can be followed during the feed motion of the cut, the lever further cooperating with a sensor set to detect a potential inclination deviation of the lever during the cut, in relation to an initial reference inclination, the control device being set to vary feed motion speed depending on the detected variation of inclination.

Device for cutting double curvature surfaces into expanded polystyrene foam volumes comprising a first pair of linear guides; over each of the linear guides two pairs of plates arranged over skids are moving, where a horizontal beam connects each pair of plates; the two pairs of plates and the pair of horizontal beams; a block of material supported on the plates is displaced by a first pair by of step motors simultaneously activated; where the block of material in its movement faces a rectangular frame which is arranged perpendicularly to the movement path of the block, with the rectangular frame having a fixed position and a flexible foil, which is covered with a sheath of thermal and electrical insulation, over which a resistive heating wire is helically wound where electrical current heats the wire and vaporizes the zone previous to physical contact with the block of material during displacement.

Device for cutting double curvature surfaces into expanded polystyrene foam volumes comprising a first pair of linear guides; over each of the linear guides two pairs of plates arranged over skids are moving, where a horizontal beam connects each pair of plates; the two pairs of plates and the pair of horizontal beams; a block of material supported on the plates is displaced by a first pair by of step motors simultaneously activated; where the block of material in its movement faces a rectangular frame which is arranged perpendicularly to the movement path of the block, with the rectangular frame having a fixed position and a flexible foil, which is covered with a sheath of thermal and electrical insulation, over which a resistive heating wire is helically wound where electrical current heats the wire and vaporizes the zone previous to physical contact with the block of material during displacement.

Systems and methods utilizing stationary and/or moveable cutting components provide limited interference with web processing operations, such as pad spin and pitch alteration. Heat, laser, fluid, or mechanical cutting operations may be used, including respectively, a heated element (e.g., wire, ribbon, bar, or embossing or perforating element) that may be triggered inductively, water or steam jets, or improved knife/anvil cooperation.

Systems and methods utilizing stationary and/or moveable cutting components provide limited interference with web processing operations, such as pad spin and pitch alteration. Heat, laser, fluid, or mechanical cutting operations may be used, including respectively, a heated element (e.g., wire, ribbon, bar, or embossing or perforating element) that may be triggered inductively, water or steam jets, or improved knife/anvil cooperation.

A cutting apparatus configured to hold an elongate element, such as a ribbon, in a desired orientation as the elongate element is cut into two sections. A cutting element of such a cutting apparatus may be confined to a single orientation relative to that of the elongate element, reducing or eliminating the likelihood of misalignment between the cutting element and the elongate element immediately before the elongate element is cut. In some embodiments, the cutting apparatus, or even its cutting element, may be configured to seal the newly cut ends of the elongate element. Methods for cutting and or sealing elongate elements, such as ribbons, are also disclosed.

A cutting apparatus configured to hold an elongate element, such as a ribbon, in a desired orientation as the elongate element is cut into two sections. A cutting element of such a cutting apparatus may be confined to a single orientation relative to that of the elongate element, reducing or eliminating the likelihood of misalignment between the cutting element and the elongate element immediately before the elongate element is cut. In some embodiments, the cutting apparatus, or even its cutting element, may be configured to seal the newly cut ends of the elongate element. Methods for cutting and or sealing elongate elements, such as ribbons, are also disclosed.

Systems and methods utilizing stationary and/or moveable cutting components provide limited interference with web processing operations, such as pad spin and pitch alteration. Heat, laser, fluid, or mechanical cutting operations may be used, including respectively, a heated element (e.g., wire, ribbon, bar, or embossing or perforating element) that may be triggered inductively, water or steam jets, or improved knife/anvil cooperation.

Systems and methods utilizing stationary and/or moveable cutting components provide limited interference with web processing operations, such as pad spin and pitch alteration. Heat, laser, fluid, or mechanical cutting operations may be used, including respectively, a heated element (e.g., wire, ribbon, bar, or embossing or perforating element) that may be triggered inductively, water or steam jets, or improved knife/anvil cooperation.