Cross-belt seaming machines and systems are now available in a variety of glass size ranges. Diamond belt seaming was added to the product line to provide our Customers with an additional choice from diamond wheel seaming. Those industries that may only ever need a light seam, and never a pencil edge, may choose belt seaming for its simplicity and ease of operation. The system can be provided as a dry or a wet belt seaming system.
The GLASSLINE system, as usual, provides a very robost design, utilizing heavy steel tubing, and long lasting components. The cross-belt system is a 2×3-roller triangular design, including two idlers for each belt. The forward idler is actuated by pneumatic cylinder and guided by linear rails. This action allows for the belts to be actuated at the lead/trail corners. The lower idler is also guided via linear rails and is controlled by a pneumatic cylinder for belt tension. The belts are driven on vulcanized rollers, which are held by double bearings. A vacuum belt conveyor provides the glass holding force, along with idler edge guide rollers to maintain alignment as the glass passes through the system.
On a typical ‘double-edger-style’ system, there are two seaming systems and a roller/belt transfer. The seaming systems include a ‘fixed’ belt seamer and a moving seamer, which accomodates varying glass sizes. The movement is accomplished via servo motion system and is either controlled by entering the part size, or measurement of the glass. The transfer conveyor can be a roller/belt 90 degree transfer or our drop transfer design for higher throughputs.
Optionally an edge deletion head can be added. The edge deletion head for an automated seaming system typically includes a special design utilizing a servo motor to automatically control the wheel height as it wears. A pneumatic cylinder provides the compliance to adjust the force of the edge deletion wheel on the glass. Scotch-brite wheels are used for dry edge deletion of low-E coatings.