| 摘要 |
This invention relates to a method and apparatus for severing elongate, flexible material into separate pieces of predetermined lengths. The elongate, flexible material is supplied from a source at a constant, uniform rate of speed. It is subsequently engaged and retarded by suitable means prior to being severed in pieces by a stationary shear. Means are provided to form a curve or hump in the material between the supply source and the retarding means and means are also provided to form a curve or hump in the material between the retarding means and the shear. A loop is thereby formed at the first curved portion of the material when the material is retarded. A loop is also formed at the second curved portion of the material when it is being sheared. The double loop arrangement enables the constant, uniform drive to be employed and also the stationary shear to be used. The constant speed of the elongate material also improves the operation of the overall line, with fewer interruptions resulting, and enables the material to track better.
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