A polishing method includes rotating a substrate, performing a first polishing process of pressing a polishing tape against an edge portion of the substrate by a pressing member, with a portion of the polishing tape projecting from the pressing member inwardly in a radial direction of the substrate, to polish the edge portion of the substrate and bend the portion of the polishing tape along the pressing member, and performing a second polishing process of pressing the bent portion of the polishing tape inwardly in the radial direction of the substrate by the pressing member to further polish the edge portion of the substrate.

A glass treatment apparatus comprise at least one upstream working device including a working wheel configured to rotate such that a working surface of the working wheel machines a surface portion of a glass sheet. The glass treatment apparatus further includes a downstream working device includes a working wheel comprising a cleaning wheel. In further examples, methods of treating glass comprise the step of machining a surface portion of a glass sheet with a working surface of a first rotating working wheel and the step of machining the surface portion of the glass sheet with a working surface of a second rotating working wheel comprising a cleaning wheel.

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.

A high-pressure water jet sheet strip sand-blasting descaling cleaning device, a cleaning line and a system are disclosed. The cleaning device includes a cleaning box (7), a washing box (18) and descaling nozzles (6), the descaling nozzles (6) face to the same width direction of a sheet strip (5) and are arranged in a gradient along a conveying direction of the cleaning box (7) to jet covering the sheet strip (5). The system includes the cleaning device, an abrasive collecting box, a high-pressure water supply system, an abrasive supply-recovery-separation system and a sewage recycling treatment system. The nozzles are slantwise arranged in a gradient along the conveying direction, and the neighboring nozzles do not interfere with each other, and are used for cleaning successively, so that a cleaning process is stable and controllable. A high-pressure water jet sand-blasting cleaning technology is combined with a sheet strip conveying system, different specifications of sheet strips can be continuously and stably conveyed while surfaces thereof are cleaned by using the high-pressure water jet sand-blasting acid-free cleaning technology.

Apparatus for working a sheet comprising movement means configured to move at least one sheet at a time in a direction of advance, and at least one working unit comprising a working head on which there are installed at least one working tool and a stabilizer device having opposite first gripping members and second gripping members facing each other, and reciprocally mobile along an axis of grip and release to tighten said sheet between them and to release it.

A TFT-LCD float glass substrate processing line sequentially divided into a precision cutting and edge grinding working area, surface grinding working area, and inspection and packaging working area is disclosed. In the precision cutting and edge grinding working area, a cold-end cutting device, precision cutting and breaking device, multi-axis edge grinding device, after-edge-grinding cleaning device, first edge inspection machine device, first size measurement device, grinding range measurement device, flipping conveyor belt, and loading frame are sequentially installed. In the surface grinding working area, a bonding machine entry conveyor belt, first vacuum transfer suction cup, bonding machine device, surface grinding device, peeling machine device, second vacuum transfer suction cup, after-surface-grinding cleaning machine, first surface inspection machine device, final cleaning machine, third surface inspection machine device, second edge inspection machine device, second size measurement device, and thickness measurement device are disclosed.

An apparatus and a related method for carrying out working on the perimeter of a sheet having a first lateral surface an opposing second lateral surface and a perimeter edge, comprising multi-tool working heads and sliding constraint members that can be selectively activated to stabilize the working.

Method for holding and performing work on a sheet is provided. Sheet has a first lateral surface, an opposing second lateral surface and a perimeter edge. The method includes: a step of holding the sheet, a step of working the perimeter edge and also a coordinated step of moving the sheet and/or a step of moving the work head.