Abstract: The invention relates to a steel wire descaling device. The device includes one or more first steel wire descalers and one or more second steel wire descalers. A descaling roller for removing an oxide scale from a surface of a steel wire is disposed on each of the first steel wire descaler and the second steel wire descaler. The descaling roller of the first steel wire descaler is disposed inclinedly, the descaling roller of the second steel wire descaler is disposed horizontally. By inclinedly brushing the steel wire by using the first steel wire descaler and flatly brushing the steel wire by using the second steel wire descaler, the combination of flat brushing and inclined brushing allows oxide scales to be from steel wires without a blind spot.

Abstract: Edges of panels, such as glass panels, are ground and polished using grinder wheels that are cooled and lubricated with a coolant. A coolant deflector is utilized to help prevent coolant, which may contain panel particles or abrasives, from entering between the panel and a conveying mechanism that transports the panel.

Abstract: A wafer polishing apparatus is provided. The wafer polishing apparatus includes a first polishing roller disposed on a wafer, the first polishing roller extending in a direction in which the wafer extends and a second polishing roller disposed under the wafer, the second polishing roller extending in the direction in which the wafer extends. The wafer polishing apparatus uses the roller to polish the wafer. Thus, the wafer polishing apparatus may easily polish a wafer having a large area.

Abstract: A complex geographical edge finishing system includes a fixture that holds an external part having a complex three-dimensional edge, a track disposed around the fixture and surrounding the edge of the part held in the fixture, and one or more finishing apparatuses that can sand, polish, buff, paint and/or apply coatings to the complex three-dimensional edge. The finishing apparatuses move about the track such that the three-dimensional edge of the part can be polished. The path of the track can substantially match, mimic or otherwise correspond to the path of the three-dimensional edge, such that special requirements for the finishing apparatuses are not required.

Abstract: An apparatus for grinding a continuously cast slab having a longitudinal axis and a rectangular cross-sectional shape with two opposite wide faces and two opposite narrow faces apparatus has a frame, two transversely spaced grinders carried on the frame, and a holder having two transversely spaced grippers engageable with the opposite faces of the slab in a vertical position with the wide faces of the slab vertical for grinding of the wide faces of the slab by the grinders and in a horizontal position offset by 90° to the vertical position with the wide faces of the slab horizontal for grinding of the narrow faces of the slab.

Abstract: A workpiece has two cylindrical workpiece surfaces centered on respective parallel axes and each flanked by a pair of arcuately rounded and annular corners also centered on the respective axes. Some of the corners have a small radius of curvature and others of the corners have a large radius of curvature. The workpiece is held and rotated about a main axis parallel to the axis of one of the workpiece surfaces. A pair of grinders have wheels generally diametrally flanking the workpiece and each having a central cylindrical outer wheel surface centered on the respective wheel axis and a pair of arcuately rounded edge and surfaces also centered on the respective wheel axis. Two of the edge surfaces are the large radius and the other two of the small radius.

Abstract: In a machine for centreless cylindrical grinding, the workpiece is located in a grinding gap, which is formed by the regulating wheel, the grinding wheel and the support blade. The regulating wheel rotates about its axis of rotation with the direction of rotation, and thereby drives the workpiece to rotate in the direction of rotation. The grinding wheel is driven to rotate about its axis of rotation with the direction of rotation. The workpiece passes in the direction of its longitudinal axis through a number of sets of regulating wheels and grinding wheels, which are each themselves arranged coaxially one behind the other. The regulating wheels and grinding wheels have axial interspaces on their axes; the regulating wheels thereby engage in the interspaces between the grinding wheels, and vice versa, so as to form lateral regions of overlap between the wheels.

Abstract: The corners of a sheet of glass travelling in a longitudinal direction are ground by a corner bevelling assembly having a fixed frame; a movable frame; a grinding wheel; a supporting arm supporting the grinding wheel and fitted to the movable frame; and an actuating device interposed between the fixed frame and the movable frame, and having a first powered guide-slide assembly for moving the movable frame in a direction parallel to a longitudinal travelling direction of the sheet, and a second powered guide-slide assembly for moving the movable frame with respect to the fixed frame in a transverse direction perpendicular to the longitudinal direction; the corner bevelling assembly also having a reference locator which, in use, is positioned against a longitudinal lateral surface, parallel to the longitudinal direction, of the sheet; a relative-motion assembly for enabling movement, parallel to the transverse direction, of the reference locator with respect to the supporting arm; and a device for detecting the

Abstract: The corners of a sheet of glass travelling in a longitudinal direction are ground by a grinding assembly having a fixed frame; a movable frame; a grinding wheel; a supporting arm supporting the grinding wheel and fitted to the movable frame; and an actuating device interposed between the fixed frame and the movable frame, and having a first powered guide-slide assembly for moving the movable frame in a direction parallel to a longitudinal travelling direction of the sheet, and a second powered guide-slide assembly for moving the movable frame with respect to the fixed frame in a direction perpendicular to the longitudinal direction; the grinding assembly also having a locator fixed to the supporting arm and defining a stop to keep the sheet at a distance from the grinding wheel; and a compensating device interposed between the supporting arm and the movable frame, and having a third guide-slide assembly and a flexible controlled-damping device.

Abstract: Semiconductor wafers are double sided polished by a method of polishing a frontside of the wafer in a first step with a polishing pad with fixed abrasive and simultaneously polishing a backside of the wafer with a polishing pad containing no abrasive, but during which an abrasive polishing agent is introduced between the polishing pad and the backside of the wafer, inverting the wafer, and then in a second step polishing the backside of the wafer with a polishing pad containing fixed abrasive and simultaneously polishing the frontside of the wafer with a polishing pad containing no fixed abrasive, a polishing agent containing abrasive being introduced between the polishing pad and the frontside of the semiconductor wafer.

Abstract: A cutting apparatus for cutting corner pieces formed of stone or other materials for use as building faces or for cutting flat pieces is disclosed herein. The cutting apparatus includes a frame with a first and a second conveyor operatively attached to the frame. The first and the second conveyors are configured to carry a workpiece from a first end of the frame to the second end of the frame. The first conveyor is disposed at an angle of about 45 degrees to a ground surface supporting the cutting apparatus. The second conveyor is disposed at an angle of about 45 degrees to the ground surface supporting the cutting apparatus, wherein the second conveyor is positioned perpendicularly to the first conveyor so as to form a V-shaped channel therewith.

Abstract: Apparatus and method for converting a convention centerless grinding machine to a centerless grinding machine having a servo motor mounted inside the top slide using an internal servo motor bracket. The servo motor bracket is bolted to the spindle head assembly housing and is cantilevered into the top slide to allow required tilt adjustment of the regulating wheel with respect to the top slide while maintaining correct alignment of the servo motor with the regulating wheel spindle. The bracket includes slots allowing a servo motor belt tension to be adjusted. The tension adjustments are conveniently made through an existing opening in the top slide. Locating the servo motor inside the top slide using the internal servo motor bracket of the present invention significantly reduces conversion costs and servo motor maintenance otherwise required by the environment the centerless grinder is operated in, for example, oils and the presence of metal grindings.

Abstract: A cutting apparatus for cutting corner pieces formed of stone or other materials for use as building faces or for cutting flat pieces is disclosed herein. The cutting apparatus includes a frame with a first and a second conveyor operatively attached to the frame. The first and the second conveyors are configured to carry a workpiece from a first end of the frame to the second end of the frame. The first conveyor is disposed at an angle of about 45 degrees to a ground surface supporting the cutting apparatus. The second conveyor is disposed at an angle of about 45 degrees to the ground surface supporting the cutting apparatus, wherein the second conveyor is positioned perpendicularly to the first conveyor so as to form a V-shaped channel therewith.

Abstract: In a grinding machine with a grinding means for machining a workpiece surface which can be moved in a direction of conveyance relative to the grinding means and is arranged in a machining plane, wherein the grinding means has a large number of grinding heads with grinding elements (8) rotating about a respective shaft, and the grinding heads can be moved by means of an endlessly revolving transporting means (1) in a grinding region (3) by deflection about deflection rollers via rectilinear portions in a grinding region at an angle to the direction of conveyance, improved grinding results are facilitated as a result of increased degrees of freedom in the setting of the grinding parameters without high costs for drive motors if a drive means (13), with which the grinding elements (8) are driven in rotation by a common motor provided for rotationally driving these grinding elements (8), is provided for at least one group of a plurality of grinding elements (8), and in that the drive means (13) consists of a flex

Abstract: An automatic insulation block milling machine is disclosed. The machine combines a series of operations into a single, automatic, production-line machine. Blocks of rigid insulation material, such as cellular glass blocks, are fed into the automated machine. The blocks are first placed on an automatic programmed moving conveyor belt and are first cut on a pre-determined angle developed from the horizontal and vertical centerline of the block. This cut is made by an angled, vertical band saw mounted with its blade in the center of the moving conveyor, thus producing one angled side on each of the two cut blocks. The remaining three primary sides of the cut blocks are machined to create curved sectional blocks that are used to cover the outer surface of large bore pipe systems or other cylindrical items such as tanks.

Abstract: The improved milling machine makes use of individually controlled x-axis, y-axis, and z-axis carriages. These carriages provide positive and precise control of the position of the cutting tools and the blank to be cut. The tools are located in spindles that are moved in the x-axis. A work piece or blank is manipulated in the y-axis and the z-axis. The tools are offset in the x-axis. Lights on a work space door are used to signal the condition of the mill machine and the milling operation. A tool changer allows the tools to be changed to accommodate other materials. A camera or other sensor is used to detect the location and wear on the tools.

Abstract: The improved milling machine makes use of individually controlled x-axis, y-axis, and z-axis carriages. These carriages provide positive and precise control of the position of the cutting tools and the blank to be cut. A tool changer allows the tools to be changed to accommodate other materials. A camera is used to detect wear on the tools.

Abstract: Disclosed is a device for grinding a liquid crystal display panel improving the efficiency of using equipment by independently operating first and second grinding units for grinding the unit liquid crystal display panel. The present invention includes a first grinding unit grinding edges of short or long sides of the unit liquid crystal display panel in a normal mode and a second grinding unit grinding the edges of the short or long sides of the unit liquid crystal display panel that are not ground by the first grinding unit in the normal mode or grinding the edges of the long and short sides of the unit liquid crystal display panel in an emergency mode.

Abstract: For the machining of a workpiece (18) rotating about a workpiece axis, a first abrasive tool (20), which rotates about a first tool axis, and the workpiece (18) are advanced towards one another, in order to machine a first workpiece face in a first abrasive operation. Further, a second abrasive tool (54), which rotates about a second tool axis (56), is advanced towards the workpiece (18), in order to machine a second workpiece face in a second abrasive operation. The two workpiece faces are designed rotationally symmetrically with respect to the workpiece axis and are arranged adjacently to one another in such a way that a sharp, burr-free, circular transition edge is formed between them. The two abrasive operations are controlled in such a way that they are terminated at the same time.

Abstract: A method and apparatus for a circular grinding of a workpiece having first and second workpiece faces which are rotationally symmetrical with respect to the workpiece axis and which form a circular transition edge between them are provided. The workpiece rotating about its axis and a grinding wheel rotating about a grinding-wheel axis are advanced towards one another. During grinding, an auxiliary abrasive tool, which rotates about an auxiliary-tool axis and has a plane abrasive surface arranged at right angles to the auxiliary-tool axis, is pressed against the workpiece in such a way that the abrasive surface is arranged in a tangential plane to the second workpiece face and touches the second workpiece face along a contact line. The plane abrasive surface projects in the direction of the contact line away from the second workpiece face beyond the transition edge.

Abstract: Methods and systems are disclosed whereby the edges of a glass sheet may be beveled with minimal equipment down time. Preferably such methods and systems bevel the upper and lower edges along lateral sides of a glass sheet. In especially preferred embodiments, laterally separated pairs of upper and lower edge grinding assemblies are provided having respective upper and lower oppositely oriented tapered grinding wheels. A glass sheet may thus be moved in a generally horizontal conveyance direction between one of these pairs of upper and lower edge grinding assemblies so that respective upper or lower lateral edges of the glass sheet are brought into grinding contact therewith. Continually moving the glass sheet in the horizontal conveyance direction will therefore present the other lateral edge to the other pair of upper or lower edge grinding assemblies positioned downstream. As such, the other edge will then be beveled.

Abstract: An apparatus for removing a film layer on a glass plate includes: a supporting base for supporting a glass plate; a pair of removing devices for removing a film layer on the glass plate; a transporting device for transporting the glass plate; and a control unit for defining in a divided manner a region of a film layer to be removed by the pair of removing devices and for causing the pair of removing devices to concurrently effect removal of the film layer on the glass plate in an apportioned manner with respect to divided regions defined in the divided manner.

Abstract: The present invention relates to methods and apparatus for removing coatings from generally opposed first and second major surfaces of a substrate. The method includes providing a table having a surface for slidable receipt of the substrate. First and second grinding apparatuses are provided at a mounting portion of the table, opposite one another. As the substrate moves over the table surface, it contacts the first and second grinding apparatuses. The coatings are simultaneously removed from the first major surface with the first grinding apparatus from the second major surface with the second grinding apparatus.

Abstract: The present invention relates to methods and apparatus for removing coatings from generally opposed first and second major surfaces of a substrate. The method includes providing a table having a surface for slidable receipt of the substrate. First and second grinding apparatuses are provided at a mounting portion of the table, opposite one another. As the substrate moves over the table surface, it contacts the first and second grinding apparatuses. The coatings are simultaneously removed from the first major surface with the first grinding apparatus from the second major surface with the second grinding apparatus.

Abstract: A polishing and cleaning compound device is provided which polishes and cleans a work piece in series, wherein cleaning is started while the polishing is being terminated. Thus, the polishing and cleaning compound device includes a polishing device unit having a pair of cylindrical polishing tools which vertically grip and hold a work piece transported from a container in which a plurality of thin disc-shaped work pieces are installed, the cylindrical polishing tools being rotated so as to pull the work piece up and polish the work piece as the work piece is rotated by rollers for rotation; and a cleaning device unit which is a circular shaped transporting mechanism and in which a plurality of holding devices hold the work pieces polished in the polishing device unit and move to a specific position in turn to clean the work piece. The polishing process is carried out by supplying abrasive and a cleaning process is carried out by supplying washing water.

Abstract: In a vertical type of double disc surface grinding machine, an object of this invention is to enable simple adjustment of a parallelism between a grinding surface of a lower grinding wheel and a work end face clamped by a clamping jig of a rotary table, even when a grinding wheel spindle axis is disordered. The vertical type of double disc surface grinding machine is equipped with a pair of grinding wheels 2 & 3 opposing each other in vertical direction and fixed to a pair of vertical grinding wheels 4 & 5 and a rotary table 15 holding a work W and supplying it to a grinding position A1 located between the grinding wheels 2 & 3, and provided on the rotary table 15 with a work clamping jig 17 including a rotary shaft 63 which clamps the work W at a specified position and makes it spin itself.

Abstract: A double surface grinding method for a vertical type of double disc surface grinding machine in which upper and lower ground surfaces of a work like a disc brake are ground simultaneously. The entire vertical moving stroke of the grinding wheel includes an idle feed stroke in which the wheel moves at a specified idle feed speed from the waiting position to a detection start position before contacting with the ground surface; a detection stroke in which the wheel moves at a detection speed lower than the idle feed speed from the detection start position to a detection end position after contacting with the ground surface then the wheel detects a grinding start position; and a grinding stroke in which the wheel moves at a grinding speed from the grinding start position to a grinding end position.

Abstract: A sawing system (200) incorporates a vision zone (220) between a loading/unloading zone (115) and a sawing zone (210). This arrangement allows a dual spindle counter rotating saw assembly (230) to be more rigidly mounted, which reduces the displacement of the saw assembly during the sawing process. This, advantageously reduces the variation in the cut made by the saw blades of the saw assembly to comply with a predetermined required tolerance. In addition, with the vision zone (220) located between the loading/unloading zone (115) and the sawing zone (210), a semiconductor wafer or substrate is transported from the loading/unloading zone (115) to the vision zone (220) without passing the sawing zone (210). Consequently, exposure of a semiconductor wafer or substrate to water or debris from the sawing process is avoided, and imaging can be performed at the vision zone (220) without water or debris adversely affecting the imaging.

Abstract: The invention relates to a device for peeling or shaping products such as potatoes comprising a frame, at least a first and a second grinding roller rotationally supported by the frame, at least one of the rollers comprising a grinding surface intended to contact the product during peeling or shaping, and a driving device for rotating the grinding rollers the first grinding roller comprising a substantially cylindrical body provided with axially adjacent peripheral grooves. To be able to make products of varying sizes with the same device, the device comprises means for adjusting the distance between said first and second grinding roller. The second grinding roller comprises a substantially cylindrical body provided with axially adjacent protrusions, which at least partly extend into the grooves when the distance between said first and second grinding roller is minimized.

Abstract: A process for machining a wafer-like workpiece between two plates, in which material is abraded from the workpiece under the influence of an auxiliary substance supplied and of a pressure acting on the workpiece. In this process, the pressure on the workpiece is significantly reduced and then increased again at least once during the machining of the workpiece, and the supply of the auxiliary substance is reduced as the pressure is increased.

Abstract: An appliqué film and paint removal tool includes a central rotating shaft, a spring-loaded locator pin, at least three freely rotating bearings, an arbor, and a collar. The rotating shaft may be centered with the locator pin and pushed down until the bearings touch the surface from which the appliqué or paint material is to be removed. By rotating while touching the mold line contour of the fastener the bearings will cause the appliqué film or paint treatment to separate around the mold line of the fastener. The separated material than can be peeled off and the fastener is accessible. Therefore, the appliqué film or paint treatment can be removed from fasteners without damaging the surface around the fastener. The appliqué film and paint treatment removal tool may be designed to accommodate all fastener diameters and mold line contours.

Abstract: Disclosed is a device for grinding a liquid crystal display panel improving the efficiency of using equipment by independently operating first and second grinding units for grinding the unit liquid crystal display panel. The present invention includes a first grinding unit grinding edges of short or long sides of the unit liquid crystal display panel in a normal mode and a second grinding unit grinding the edges of the short or long sides of the unit liquid crystal display panel that are not ground by the first grinding unit in the normal mode or grinding the edges of the long and short sides of the unit liquid crystal display panel in an emergency mode.

Abstract: An apparatus for removing a film layer on a glass plate includes: a supporting base for supporting a glass plate; a pair of removing devices for removing a film layer on the glass plate; a transporting device for transporting the glass plate; and a control unit for defining in a divided manner a region of a film layer to be removed by the pair of removing devices and for causing the pair of removing devices to concurrently effect removal of the film layer on the glass plate in an apportioned manner with respect to divided regions defined in the divided manner.

Abstract: The present invention relates to a method and apparatus for rectifying cylindrical articles, in particular nuclear fuel pellets. In said method, in characteristic manner, the dust generated by the rectification by a working grind wheel acting on said pellets remains confined and practically all of it is entrained beside said working grind wheel so as to be taken away by forced suction.

Abstract: An automated planer machine for planing a piece of lumber. The planer machine has a feed table for slidably receiving the bottom surface of the piece of lumber along a traveling course. One or more planing heads extend on sides of the traveling course to plane the surfaces of the piece of lumber. A linebar laterally guides the piece of lumber. Feed rolls along the traveling course move the piece of lumber. Positioning devices responsive to respective control signals are provided for adjusting a height of the feed table and planing levels of the planing heads as much when the planer machine is idle as during operation. Position encoders coupled to the feed table and the planing heads produce positional signals usable to accurately position them using the positioning devices.

Abstract: The present invention relates to a control device to grind a knife shaft used in a machine intended for cutting sheets of materials into strips, for example sheets of paper, plastic, plates of photosensitive film or any other material having the form of thin sheets. The control device according to the invention enables the grinding of the knives of knife shafts of a slitter by checking and controlling the drift of the dimensional differences of position of the knives on the knife shaft and by controlling the variability of the pitches between the knives. This with the goal of obtaining the precision and the quality of cutting required for cut photographic film strips. This device especially finds its principal application in the photographic industry, in particular on grinding machines for the knives of knife shafts equipping the film slitters.

Abstract: The invention relates to a device for peeling or shaping potatoes or the like products, comprising a frame, at least a first and a second grinding roller (1, 2) rotationally supported by the frame, at least one of the rollers comprising a grinding surface intended to contact the product during peeling or shaping, and a driving device for rotating the grinding rollers (1, 2), the first grinding roller (1) comprising a substantially cylindrical body provided with axially adjacent peripheral grooves (3). To be able to make products of varying sizes with the same device, the device comprises means for adjusting the distance between said first and second grinding roller (1, 2). The second grinding roller (2) comprises a substantially cylindrical body provided with axially adjacent protrusions (4), which at least partly extend into the grooves (3) when the distance between said first and second grinding roller (1, 2) is minimized.

Abstract: The present invention relates to methods and apparatus for removing coatings from generally opposed first and second major surfaces of a substrate. The method includes providing a table having a surface for slidable receipt of the substrate. First and second grinding apparatuses are provided at a mounting portion of the table, opposite one another. As the substrate moves over the table surface, it contacts the first and second grinding apparatuses. The coatings are simultaneously removed from the first major surface with the first grinding apparatus from the second major surface with the second grinding apparatus.

Abstract: A bilateral automatic machine for machining the edges of plates of glass, stone-like and of other plate shaped materials and the like, comprising a supporting frame which has a conveyor for the plates to be machined. There are also provided an abutment shoulder and a movable shoulder for supporting abrasive grinding wheels which act on the opposite edges of the plates. The machine comprises, for each shoulder, downstream of the last grinding wheel in the direction of advancement of the plates, a sensor for detecting the dimensions of the plates being machined which drives an advancement device for the advancement of the last grinding wheel.

Abstract: A method and apparatus for processing of planar rigid materials is provided whereby the edges of separate materials can be processed simultaneously, quickly and efficiently. Separate planar materials are moved in position and are clamped in place in horizontal alignment. Thereafter a grinding wheel moves between the opposing edges of the planar materials to abrade the leading edge of one of the materials and the trailing edge of the second opposing material. The process describes abrading both the longitudinal and lateral edges of rectangular shaped materials moved along conveyors, such planar materials being glass, ceramic, stone or the like.

Abstract: A working apparatus of a magnet member comprises: a transfer path for guiding magnet members to be ground in one direction; transfer means for pushing the plurality of magnet members in a transfer direction to continuously send out the magnet members to the transfer path; a pair of grinding means disposed such as to sandwich the transfer path for grinding opposite surfaces of the transferred magnet member; and pushing means disposed downstream from the grinding means for pushing the magnet member in a direction opposite from the transfer direction. With this structure, it is possible to work the magnet member into a predetermined shape with excellent productivity.

Abstract: A method and apparatus for improved centering of a workpiece in a planer machine includes centering sectional shoe assembly positioned in close proximity to opposed cutting heads, between the cutting heads and a centering feed assembly. The shoe assembly includes a plurality of individually movable pressure shoe sets, comprising an upper shoe and a lower shoe. Each shoe set is operatively connected to a closed circuit, double rod end hydraulic cylinder assembly which selectively and independently positions the shoe set responsive to the surface to the workpiece. A pressure device is also operatively connected to each shoe set to provide a centering force. In use, as the upper or lower shoe of a shoe set is forced away from the centerline of the workpiece, the opposing shoe would automatically move the same amount. The shoe assembly thus centers each and every workpiece independent of the amount of stock removal required.

Abstract: An apparatus (10) and method for conveying abrasive web (16), such as photographic media, has a pair of closely spaced rollers (12, 14) through which the abrasive web (16) is conveyed while in contact with a coated media bearing surface (80, 90). The media bearing surface (80, 90) comprising a composite coating or a thin inorganic coating.

Abstract: An apparatus (10) and method for conveying abrasive web (16), such as photographic media, has a pair of closely spaced rollers (12, 14) through which the abrasive web (16) is conveyed while in contact with a coated media bearing surface (80, 90). The media bearing surface (80, 90) comprising a composite coating or a thin inorganic coating.

Abstract: A device for edging of glass panes (3) has at least one grinding head as the machining tool, consisting of two crossing belt grinders (10, 12) which simultaneously engage the edges of one border of the glass pane (3) to edge-finish these edges. The belt grinders (10, 12) are supported to swivel in the machine frame (1) so that from a readiness position into their [sic] they can be placed against the edges of one border of the glass pane (3) which is to be edged for example to remove burrs. Because the belt grinders (10, 12) are arranged to be adjustable, their position can be matched to glass panes (3) of varied thickness. When there are several grinding heads, glass panes (3) can be machined at the same time on several borders.

Abstract: This apparatus has plural fixed grinding machines, which are installed along the direction of travelling line of billets. Facing pairs of grinders are equipped in a manner that the distances between each facing pair of grinders are gradually shorter along the travelling direction of the billets from the upstream side to the downstream side. In such a multiple-stage grinding machine, the burr on the welded part of the top and bottom side of the billet is ground sequentially by the grinders, and the burr on welded part of the right and left side of the billet is ground sequentially by the grinders.

Abstract: A brush deburring machine includes upper and lower synchronized dogged conveyors that translate workpieces between a pair of cylindrical wire brushes to remove burrs from the ends of the workpieces. A first support surface is defined on each of the dogs of the upper conveyor, and a second support surface is defined on each of the dogs of the lower conveyor. Workpieces are retained between the first and second support surfaces to prevent the workpieces from becoming unstable and shifting diagonally between the wire brushes, yet are permitted to rotate with respect to the first and second support surfaces to cause the entire circumference of the ends of the workpieces to be deburred.

Abstract: Two imaging equipment are provided at a pair of cutting blade units, and the two imaging equipment image patterns at first positions in proximity to the center of a wafer at the same time. A controller drives drive mechanisms to align the wafer in such a way that current image patterns at the first positions can match with a reference pattern at the first positions. Then, the two imaging equipment are moved to positions for imaging patterns at second positions at the outer circumference of the wafer to image the patterns at the second positions. The controller drives the drive mechanisms to align the wafer in such a way that current image patterns at the second positions can match with a reference pattern at the second positions.

Abstract: An apparatus to clean gold plated contact surfaces on printed circuit boards uses a printed circuit board guide and cleaning units in contact with the printed circuit board guide. A guide rail on the printed circuit board guide is adapted to guide the printed circuit board having contaminated gold plated contact surfaces. The cleaning units include grindstones to abrade the gold plated contact surfaces and rub off the contaminants. Embodiments are capable of achieving cleaning uniformity, reducing failure rate, and enhancing the quality of the products. The effectiveness of the invention permits operators to carry out other operations during the cleaning process. Practice of the present invention also provides improved operating conditions without problems such as those due to the presence of waste eraser particles.

Abstract: Two imaging equipment are provided at a pair of cutting blade units, and the two imaging equipment image patterns at first positions in proximity to the center of a wafer at the same time. A controller drives drive mechanisms to align the wafer in such a way that current image patterns at the first positions can match with a reference pattern at the first positions. Then, the two imaging equipment are moved to positions for imaging patterns at second positions at the outer circumference of the wafer to image the patterns at the second positions. The controller drives the drive mecha- nisms to align the wafer in such a way that current image patterns at the second positions can match with a reference pattern at the second positions.