摘要:
A portable drum sander, including a base, a drum mounted for rotation on the base for carrying at least one grade of sandpaper on a peripheral surface thereof, a feed table carried on the base and having a slot therein through which the drum is exposed for rotating contact with a workpiece to be sanded. The feed table includes an infeed table segment upstream of the slot and an outfeed table segment downstream of the slot for supporting the workpiece during passage over the slot in contact with the drum, and a pivot mounting the feed table adjacent a downstream end of the outfeed table segment for pivotal movement of the feed table to a desired height with reference to the drum. A height adjustment lock cooperates with the infeed table segment for locking the feed table into a locked position at the desired height with reference to the drum.
摘要:
The invention relates to a method for grinding of preferably billets, blooms or slabs which are moved in a certain direction on a support. The method means that the grinding is performed in a track which is perpendicular to the travel direction of the billets, blooms or slabs. The invention also relates to an arrangement for performing the method, which arrangement is characterized in that the means carrying the grinding wheel is arranged on a table (14) which is moveable forward and backward in the travel direction of the billets, blooms or slabs (1), which table (14) in its turn is arranged on a frame or the like (16) which is moveable forward and backward in a direction which is perpendicular to the travel direction of the billets, blooms or slabs.
摘要:
An abrasive, sanding and/or surface finishing apparatus designed to extend the useful life of abrasive material which employs a dual-platen arrangement having a particulate removal system designed to effectively remove particulate from the working area of the machine. Specifically, the particulate removal system is designed to remove particles from the surface of the work in the area of the gap created between the twin platens, with a secondary particulate removal system designed to remove material from the work following treatment by abrasive from both platens. The inlet port of the particulate removal system interposed between the platens is designed to occupy a substantial portion of the area within the gap zone between the platens. In addition to increasing the useful life of the abrasive, the particulate removal system reduces the release or discharge of dust into the ambient.
摘要:
To sand the surface of an item (3) uniformly smooth, a sanding machine is used with sanding tools in the form of sanding rollers (29) which are rotated as well as turned in the same plane, and which at the same time are also moved in a different direction from the direction in which the item is conveyed, whereby during the working stroke the sanding elements on the sanding rollers (29) will sand at all possible contact angles in relation to the item (3).To move the sanding rollers (29), the apparatus comprises a motor-driven crank arm (7), in sliding engagement with a carriage supports the sanding rollers (29), and drives the carriage on rails (33) which extend in a circle about the machine (1). This achieves a stable and robust construction which also gives the sanding rollers (29) an expedient movement characteristic, which compensates for the predominantly longitudinal sanding movements to which the items are exposed in the outer areas.
摘要:
In a device for the treatment of the edge zones of plate-shaped elements, a conveyor (3) for the plate-shaped element and a treatment tool (17) movable to and fro transversely to the conveying direction are provided. In opposition to the treatment tool (17), on upright bracing roll (15), rotatable about an axis extending transversely to the conveying direction, is provided for te plate-shaped element. The conveyor (3) comprises a carrier unit (8) for the plate-shaped element, which carrier unit can be moved together with the conveyor selectively in synchronism.
摘要:
An apparatus for finishing work pieces such as by abrading, grinding or polishing wherein said work pieces are carried by a work holder movable through a rectilinear path while being simultaneously rotated about a vertical axis beneath a continuous moving finishing element.
摘要:
A rotary abrasive grinding head adapted progressively to traverse a pre-grooved refractory surface, embodying impact members which fracture the intervening ribs between the grooves and thus remove the fractured fragments, and also embodying abrasive members which eradicate the residual or remaining portions of the ribs.