초록 ▼

A process for fabricating belts are disclosed in which the leading edge of a web is conveyed from a supply roll into a belt loop forming station, the web is cut a predetermined distance from the leading edge to form a web segment having the leading edge at one end and a trailing edge at the opposite

A process for fabricating belts are disclosed in which the leading edge of a web is conveyed from a supply roll into a belt loop forming station, the web is cut a predetermined distance from the leading edge to form a web segment having the leading edge at one end and a trailing edge at the opposite end, the lower surface of the web adjacent the leading edge is inverted, the lower surface of the web adjacent the trailing edge is inverted, the inverted leading edge and the inverted trailing edge are overlapped to form a loop of the web segment loosely suspended from the joint formed by the overlapped leading edge and trailing edge, the loop of the web segment at the belt loop forming station is transferred to an anvil, the loop of the web segment on the anvil is conveyed to a welding station and the overlapped leading edge and trailing edge are welded together on the anvil to form a belt welded at the joint.

대표청구항 ▼

A process for fabricating belts comprising conveying the leading edge of a web from a supply roll into a belt loop forming station, cutting said web a predetermined distance from said leading edge to form a web segment having said leading edge at one end and a trailing edge at the opposite end, grip

A process for fabricating belts comprising conveying the leading edge of a web from a supply roll into a belt loop forming station, cutting said web a predetermined distance from said leading edge to form a web segment having said leading edge at one end and a trailing edge at the opposite end, gripping only the lower surface of said web adajcent said leading edge, gripping only the lower surface of said web adjacent said trailing edge, inverting said lower surface of said web adjacent said leading edge, inverting said lower surface of said web adjacent said trailing edge, overlapping said leading edge and said trailing edge to form a loop of said web segment loosely suspended from the joint formed by the overlapped leading edge and trailing edge, transferring said loop of said web segment at said belt loop forming station to a first anvil, conveying said loop of said web segment on said first anvil to a welding station while maintaining said joint formed by said overlapped leading edge and trailing edge imparting a linear movement and a rotary movement to said first anvil while conveying said loop to said welding station, simultaneously conveying another anvil to said belt loop forming station, welding said overlapped leading edge and trailing edge together on said anvil to form a belt welded at said joint, and simultaneously forming another loop from a fresh web segment at said belt loop forming station.