摘要:
A power tool includes a table structure defining a blade slot, a frame supporting the table structure, a blade assembly mounted within the frame, and a dust cover assembly. The blade assembly includes a blade positioned within the blade slot, a motor assembly to rotate the blade, and a carriage assembly supporting the motor assembly and pivotably mounted to adjust the angular orientation of the blade relative to the table structure. The carriage assembly includes a cover arranged to define a gap between an upper edge of the cover and the underside of the table structure. The dust cover assembly is mounted between the carriage assembly and the table structure to substantially cover the gap at all angular orientations of the blade relative to the table structure. The dust cover assembly is mounted for relative movement relative to at least one of said carriage assembly and said table structure.
摘要:
A power tool includes a table structure having a work surface and a motor assembly having an output drive positioned under the work surface. The motor assembly is adjustable relative to the work surface between a first position that is close to the work surface and a second position that is further from the work surface. A fan member is coupled to the motor assembly to generate an airflow. A blade case is positioned under the work surface including a first sidewall and an opposing second sidewall, and an air guide configured to channel the airflow into the blade case through an opening in the first sidewall. The air guide is further configured to move with the motor assembly between the first position and the second position. The air guide covers the opening in both the first position and the second position.
摘要:
A device for trimming at least one side edge of a bound printed product including a trimming table to receive the printed product and a press die arranged to press the printed product against the trimming table. The press die is operative to rise and fall with respect to the trimming table and the press die includes an elastic surface in a region approximately near the side edge of the print product. The elastic surface is operable to expand in a direction approximately transverse to the pressing direction. The device also includes a trimming knife positioned to trim the side edge. The trimming knife is operable to move between a starting position away from the trimming table and an ending position at the trimming table. The device also includes counter blade or a cutting bar mounted to limit a cutting stroke of the trimming knife.
摘要:
A waste strip-removing apparatus for use with a ripsaw that saws an incoming board into one or more usable boards and removes the opposite side edges, which become two waste strips that must be removed and transported to a different destination from that to which the usable board(s) is (are) transported. The apparatus includes two air-blasting units each having one or more air nozzles assigned to each waste strip. The air-blasting units are positioned with respect to a lateral direction by a positioning mechanism so that air directed from the nozzles impinges on the waste strips and moves them laterally away from the usable board(s). The positioning mechanism can include a linear motor having two forcers movable along a platen and respectively attached to air-blasting units.
摘要:
A process and a cutting machine for working of lying work pieces, particularly plates, glass-sheets, etc. on a machine-tool by means of a cutting fluid-jet (3), particularly of a laser-jet or a high-pressure water-jet on a lattice-like support (9). At least one fixed work piece is cut by the fluid-jet (3), especially water jet exiting from at least one first nozzle (2), so that the work piece (1 a) is preferably separated by a cut gap (7) from a rest piece (1 b). The respective working position of the nozzle (2) relative the work piece (1 a) is controlled. For hindering a tilting of the work piece (1 a) and/or the rest piece (1 b) during the processing of the work piece (1 a), border-fixing and distance-holding elements (8) are associated with the cut gap (7) in such a manner, that the neighboring border-fixing and distance-holding elements (8) are arranged from each other in a distance depending on the outline of the work piece (1 a) and/or of a respective length of the cut gap (7). The border-fixing and distance-holding means (8) are attached to the cut gap (7) or are introduced into the cut gap (7). The material of the border-fixing and distance-holding elements (8) is selected preferably from the following group of materials: mesh-able adhesives, materials containing adhesive and/or elastic materials.
摘要:
Apparatus for causing paper webs to tear off within rewinding machines, the web (2) being provided, at regular intervals, with transverse perforation which subdivide the web into sheets joined to each other but able to be separated in correspondence of said perforation lines, the apparatus comprising a device to cause the tearing of the web (2) upon the passage of a perforation line (p) which separates the last sheet of a log (RO) in the course of formation from the first sheet of the next log to be formed, characterized in that the tearing device is a pneumatic type device (SP) able to direct a jet of compressed air toward the line (p).
摘要:
Apparatus for causing paper webs to tear off within rewinding machines, the web (2) being provided, at regular intervals, with transverse perforation which subdivide the web into sheets joined to each other but able to be separated in correspondence of said perforation lines, the apparatus comprising means to cause the tearing of the web (2) upon the passage of a perforation line (p) which separates the last sheet of a log (RO) in the course of formation from the first sheet of the next log to be formed, characterized in that the tearing means are of pneumatic type (SP) able to direct a jet of compressed air toward the line (p).
摘要:
A die body includes a die hole for punching a work. A core, including a discharge hole, which is in communication with the die hole, is provided in the die body. The core is provided with a plurality of fluid injection ports through which fluid is injected downward of the discharge hole. The die body is provided with inflow ports through which compressed fluid flows into the fluid injection ports. The core is made of resin. The discharge hole is tapered toward its upper side. An outer peripheral surface of the die body is provided with a peripheral groove which is in communication with the inflow ports.
摘要:
A glass transporting and locating system for a glass cutting table with a bridge extending across the glass cutting table which is movable along the length of the glass cutting table. A glass workpiece feeding table is positioned adjacent the glass cutting table and adapted to support a glass workpiece to be fed to the glass cutting table. At least one vacuum chuck is carried by the bridge at a position which can overlap a glass workpiece supported on the glass workpiece feeding table when the bridge is at one end of the glass cutting table. The system includes a device for aligning the glass workpiece which is supported on the glass workpiece feeding table. The alignment device may include a retractable stop on the bridge or on the glass workpiece feeding table. The retractable stop on the bridge may also be used for advancing finished workpieces off of the glass cutting table. The glass workpiece transporting and locating system is adapted to be easily retrofitted to existing glass cutting tables.
摘要:
A guiding roller for reversing a material web comprises a lateral surface provided with holes (08) over at least a portion of the periphery thereof and comprises an inner space, which is supplied with compressed air and inside of which at least one piston (18, 19, 22, 23) for selectively occluding the holes can be axial displaced. The guiding roller additionally comprises a motor for displacing the piston and is provided with a control circuit that operates the motor whereby causing the piston to occupy a specified position that is defined by a control signal supplied to the control circuit. The guiding roller can pivot 90null on the frame about a pivotal axis that is perpendicular to the longitudinal axis of the roller. A gear mechanism couples a rotational movement of the piston about the axis to the pivotal movement of the guiding roller.