摘要:
A driving mechanism (1) comprising first and second drive shafts (10, 22) respectively causing the movement, through first and second eccentrics (17, 24), of a needle-bar (3) and one or several tube-bars (5). Also mounted on the drive shafts (10, 22) are auxiliary eccentrics (18, 26) which control the movements of respective counterweights (21, 28) in phase opposition relative to the oscillatory movements transmitted to the needle-bar (3) and tube-bars (5), in order to counterbalance the forces of inertia resulting from the reciprocating movements imparted to the bars (3, 5) themselves.
摘要:
Installed on a crochet galloon machine is a device (1) for inserting alternately-interposed wefts, comprising two weft-inserting sliders (10, 16) carrying respective threading tubes (11, 17) each adapted to lay down a weft yarn (12, 18) to be interlooped in the article of manufacture (M) being worked. Each slider (10, 16) is movable along a respective weft-inserting guide (9, 15). The cyclic movements of the sliders (10, 16) are mutually offset according to a cycle fraction equal to the number of the provided weft-inserting bars (9, 15), so as to alternate laying down of each weft yarn (10, 18) with each chain stitch (6b)-formation cycle.
摘要:
A driving mechanism (1) comprising first and second drive shafts (10, 22) respectively causing the movement, through first and second eccentrics (17, 24), of a needle-bar (3) and one or several tube-bars (5). Also mounted on the drive shafts (10, 22) are auxiliary eccentrics (18, 26) which control the movements of respective counterweights (21, 28) in phase opposition relative to the oscillatory movements transmitted to the needle-bar (3) and tube-bars (5), in order to counterbalance the forces of inertia resulting from the reciprocating movements imparted to the bars (3, 5) themselves.