摘要:
Assembly for perforating rod-shaped elements, particularly cigarettes, which comprises a driving shaft along which a number of rotary perforating cutters are arranged and the cutters are separated by distance rings, wherein each rotary cutter is positioned between two pushing elements and it protrudes from between those pushing elements.
摘要:
A system for cutting a profile along a linear edge of a wooden workpiece utilizes two spaced-apart rotatable cutting tools which are mounted for rotation in opposite rotational directions and a support surface for supporting the workpiece for movement along each of the two cutting tools. By positioning the workpiece upon the support surface so that the linear edge thereof extends between the two cutting tools, the workpiece can be moved into cutting engagement with a first of the cutting tools and subsequently into cutting engagement with the second of the cutting tools. By subsequently reversing the movement of the workpiece along the first cutting tool before the cutting edges thereof exit a trailing (side) edge of the workpiece, the likelihood that the workpiece will be damaged from the profile-forming process is reduced.
摘要:
The invention relates to a machine for creating grout lines on boards and/or for cutting floor panels or tiles from boards comprising a feeding means, a support surface and a sawing device wherein due to the fact that the sawing device is moveably arranged with respect to the support surface, the probability of creating scratches on the board surfaces is reduced. The invention also relates to a corresponding method for creating grout lines on boards or for cutting boards into floor panels or tiles.
摘要:
A channel cutting tool may include an arbor that connects to a rotating spindle of a machining tool or a similar spinning part of a machining tool. Two slot cutting blades may be fixedly mounted to the arbor. An inner washer may be fixedly mounted on the arbor between the cutting blades and establish the blade spacing. An outer washer may be rotationally mounted to the inner washer with a smaller thickness to facilitate rotation relative to the two cutting blades. The arbor rotates about a longitudinal rotation axis, which also may be the rotation axis for the cutting blades, the inner washer, and the outer washer. The outer washer functions as a depth-limiting safeguard for the channel cutting tool.
摘要:
An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface. An apparatus is also provided which includes a telescoping shaft upon which is mounted at least one cutting tool that has a plurality of cutting inserts and is adapted to form a plurality of grooves and bosses in the interior surface of the tube. The grooves and bosses may be straight or spiraled.
摘要:
An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface. An apparatus is also provided which includes a telescoping shaft upon which is mounted at least one cutting tool that has a plurality of cutting inserts and is adapted to form a plurality of grooves and bosses in the interior surface of the tube. The grooves and bosses may be straight or spiraled.
摘要:
A method and apparatus are provided for singulating semiconductor devices from a strip containing a plurality of semiconductor devices. A singulation saw chuck is also provided. The method includes the steps of making isolation cuts part way through the strip of semiconductor devices, inverting the strip onto a saw chuck with barriers that mate with the isolation cuts, and making singulation cuts that match the isolation cuts to completely separate the individual semiconductor devices.
摘要:
Method and apparatus are disclosed for dadoing cabinet panels. The dados are cut by a plurality of routers selectively extended into the panel. The selection of the number of routers, translatory movement of each of the routers, and positioning of the panel is controlled by air operated mechanisms. A pneumatic control system processes the operation of the routers in response to the inputs from a plurality of manually settable controls and the signals developed by feed back mechanisms. SPThis is a division of application Ser. No. 600,726 filed 7/31/75 now U.S. Pat. No. 4,005,738.