Abstract:
A cutting assembly for a printer that includes a cutting frame (114) that has opposing side walls (154, 156) is provided. The cutting assembly further includes a blade housing (180) slidably mounted in the cutting frame for slidable movement along the side walls and a blade (178) fixed in the blade housing that includes a cutting edge (182). The cutting assembly further includes a plurality of ejector posts (200, 202, 204) that extends from the blade housing in a direction of blade housing slidable movement and past the cutting edge to engage media being cut by the cutting edge.
Abstract:
A machine for manually cutting web material employs a cutting head (42) that is supported on a rail (26) for sliding and pivoting movement along and across a straight edge (18), which is disposed outwardly thereof. The cutting wheel (50) is biased axially toward the straight edge, its axis being so disposed as to cause the biasing means to impart an upward force moment that tends to elevate the wheel blade. A guide plate (24) is pivoted by upward movement of the cutting head, so as to increase spacing from the surface of the base (10) and thereby facilitate feeding of the workpiece.
Abstract:
A knife assembly (10) particularly adapted for coupling with an extruder barrel (26) is provided having a knife shaft (16) supporting a knife unit (14), with the knife shaft (16) axially rotatable and axially shiftable through fore and aft limits. The assembly (10) may be adjusted during operation without interrupting the axially rotation of shaft (16), using adjustment mechanism (24) located in a safely remote position from knife unit (14). The preferred assembly ( 10) includes axial shift limiting structure (114, 116, 124) serving to limit the extent of fore and aft axial movement of shaft (16). The mechanism (24) allows fine adjustment of the position of knife unit (14) relative to the extruder barrel (26), and also permits monitoring of the wear of knife unit (14).
Abstract:
A cutting assembly for a printer that includes a cutting frame that has opposing side walls is provided. The cutting assembly further includes a blade housing slidably mounted in the cutting frame for slidable movement along the side walls and a blade fixed in the blade housing that includes a cutting edge. The cutting assembly further includes a plurality of ejector posts that extends from the blade housing in a direction of blade housing slidable movement and past the cutting edge to engage media being cut by the cutting edge.
Abstract:
A knife assembly (10) particularly adapted for coupling with an extruder barrel (26) is provided having a knife shaft (16) supporting a knife unit (14), with the knife shaft (16) axially rotatable and axially shiftable through fore and aft limits. The assembly (10) may be adjusted during operation without interrupting the axially rotation of shaft (16), using adjustment mechanism (24) located in a safely remote position from knife unit (14). The preferred assembly ( 10) includes axial shift limiting structure (114, 116, 124) serving to limit the extent of fore and aft axial movement of shaft (16). The mechanism (24) allows fine adjustment of the position of knife unit (14) relative to the extruder barrel (26), and also permits monitoring of the wear of knife unit (14).
Abstract:
Device for opening mail envelopes (13), in which a movable blade (10) is mounted on a support (3) and moves against a fixed edge which can be a blade (25). The movable blade extends diagonally in a longitudinal direction. The cutting is carried out in the place where the blades (10, 25) are engaged, by means of a progressive displacement of the movable blade along the edge of the envelope. The blades (10, 25) are mounted on a frame (1). A waste container (32), rearwardly removable, can be placed under the blades.
Abstract:
A material cutting machine has a tool mount support mounted for reciprocal movement and a tool mount supported by the tool mount support. A driver, such as a pneumatic cylinder, selectively advances and retracts the tool mount support. A control system is operatively coupled to the driver for setting the advancement force of the tool mount support when a tool supported by said tool mount contacts a workpiece, such as the edge or surface of a moving strip. In this way, the depth of cut of the tool is controlled by tool advancement force rather than by accurate positioning of the tool. In one embodiment, the tool mount support may have a head and a base and a resilient member resiliently coupling the head to the base to provide a damped resilience. With this embodiment, a transient spike in the reaction force which may result, for example, from a hard spot in the material, causes the tool to momentarily deflect. Swing links may maintain the lateral positioning of the tool whenever it momentarily retreats due to a reaction force spike. A guide for the tool mount may be pivotably mounted to a frame so that a rake angle of a tool supported by the tool mount may be varied.
Abstract:
The invention relates to a chamfer cutting device for cutting packaging materials (9), comprising a die (1) and a knife part having several knives (2). The die (1) can be moved towards the knife part in order to perform cutting. The knives (2) are individually arranged in the knife according to a force whereby their position in relation to the tool plate (4) can be defined according to the force arising from contact with the packaging material (9) or the die (1). When contact between the knife (2) and the die (1) occurs, a force is exerted on the knife (2) which does not exceed a given maximum. The chamfer cutting device has the advantage that the matrix (1) can be brought into close proximity with the knife (2).