Upper cam mechanism of computerized flat knitting machine

Abstract

An upper cam mechanism of a computerized flat knitting machine comprises a motherboard and at least two upper cams arranged on the upper end face of the motherboard. Each upper cam sequentially comprises a first-section needle moving surface, a second-section needle moving surface and a third-section needle moving surface, each first-section needle moving surface and each third-section needle moving surface are both in circular arc transition with the corresponding second-section needle moving surface and extend upward to stretch bilaterally with the corresponding second-section needle moving surface serving as a start end, each second-section needle moving surface recesses to form needle moving grooves, and needle inlet sections of the needle moving grooves are in oblique plane transition. The needle moving grooves with oblique needle inlet sections are additionally arranged on the horizontal needle moving surfaces of the upper cams, and accordingly stable transition of needle feet can be guaranteed, vibration amplitude and unplanned displacement are effectively reduced, butts of long needles are protected, accidental striking of the needle butts is prevented, and further the service life of the needles is prolonged.

Description

technical field [0001] The invention relates to a component of a computerized flat knitting machine, in particular to an upper mountain protection mechanism, which belongs to the technical field of knitting equipment. Background technique [0002] The needle selection upper guard of the computerized flat knitting machine is mainly used to determine the movement track of the stitches during needle selection. Specifically, during the knitting process, the upper stitches of the long needles are sent to the track of the transfer triangle, and after the transfer is completed, Return the upper stitch of the long needle. During the movement, the speed is required to be stable, the path is smooth, and there should be no large vibration or sudden unplanned displacement. [0003] The existing needle selection upper guard has a single structure, and mostly adopts a right-angle structure, that is, the sides of each turning point of the needle selection upper guard are perpendicular to ...

AI Technical Summary

Problems solved by technology

[0003] The existing needle selection upper guard has a single structure, and most of them adopt a right-angle structure, that is, the sides of each turning point of the needle selection upper guard are perpendicular to the bottom edge

Although this type of upper guard is simple to manufacture, because the needle track provided by this type of upper guard requires the stitches to turn at right angles frequently, the movement process of the needle selection is not stable enough, and the vibration is large, which may easily cause damage to the stitches or other parts.

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