| 摘要 |
A bridge mandrel for use as part of the rollers used in flexographic printing presses. When used as a part of the printing roller, the bridge mandrel allows the use of inexpensive printing sleeves to which the flexographic printing plates can be attached. When used as part of the inking roller, the bridge mandrel provides a durable and cost effective design. The bridge mandrel is made from a cylinder and two bearing sleeves that mount the cylinder to a standard mandrel. When the bridge mandrel is used as a printing roller, the thin printing sleeve mounts to the cylinder by means of an extension of the conventional compressed air mounting system. The ability to use inexpensive thin printing sleeves greatly reduces the cost and time expenditure normally associated with changing the printing rollers in flexographic printing presses. When used as an inking roller, the surface of the bridge mandrel is coated with a ceramic material that is engraved with microfine cells to provide a durable and cost effective inking roller.
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