Elevating mechanism of lifting bar of computerized flat knitting machine

Abstract

The invention relates to an elevating mechanism of a lifting bar of a computerized flat knitting machine, belonging to the technical field of flat knitting machines. The elevating mechanism comprisesa pair of wall plates, a lifting bar, a pair of lifting bar traction mechanisms and a pair of power transmission mechanisms, wherein the wall plates are installed on the middles of the two corresponding sides of a machine case under the computerized flat knitting machine in a length direction, the upper part of each wall plate is provided with a first moving channel and a second moving channel, the upper end of each wall plate is narrower than the lower end, the upper end of the first moving channel and the upper end of the second moving channel are respectively provided with a longitudinal straight channel, the lower ends are respectively provided with an inclined channel, and the combination of the straight channels and the inclined channels enables the first moving channels and the second moving channels to tend to form an L shape; the lifting bar is connected to the wall plates and moves along the tracks of the first moving channels and the second moving channels; the lifting bar traction mechanisms are arranged on the outer walls of the wall plates and connected with the lifting bar; and the power transmission mechanisms are arranged on the lower parts of the outer sides of the wall plates and connected with the lifting bar traction mechanisms. The invention has the advantages that a knitting guide plate does not need to be used; the elevating mechanism makes less motion,has simple structure and guarantees the reliability of elevation of the lifting bar; and the machine is convenient to clean, maintain and overhaul.

Description

technical field [0001] The invention belongs to the technical field of flat knitting machines, and in particular relates to a needle lifting mechanism of a computerized flat knitting machine. Background technique [0002] People who are engaged in the development and design of computerized flat knitting machines and even use computerized flat knitting machines know that a needle lifter is usually installed in the chassis below the computerized flat knitting machine. The lifting device controls the lifting of the needle lifting board (the industry is also called the bottom plate, hereinafter the same). When knitting starts, the needle lifting device lifts the needle lifting device to the mouth of the knitting mechanism of the computerized flat knitting machine for needle lifting. down to the initial position. In order to prevent the braid from falling onto the needle lifting plate, a braid guide plate for guiding the braid is also hinged on the guard plate of the aforementi...

AI Technical Summary

Problems solved by technology

However, the applicant thinks that there are still two shortcomings: one is that when the needle lifting plate enters the needle knitting state when the needle lifting plate rises, it is necessary to make the braided fabric guide plate vacate the position, that is, the aforementioned passageway

On the contrary, after the knitting is completed, it returns to the original state, that is, it returns to the effective guiding position for the braided fabric. Therefore, it is necessary to cooperate with the linkage mechanism for manipulating the braided fabric guide plate, thus complicating the structure.

The second is that it is not conducive to cleaning and repairing or routine maintenance inside the cabinet, because when cleaning, repairing and maintaining, the braided guide plate must be removed, and it is very troublesome to remove the braided guide plate, because A pair of guide plate opening and closing devices arranged at both ends of the inner side of the braided guide plate are matched with a pair of actuating devices, and a little carelessness will affect the coupling effect of the two

The third is that due to the complexity of the overall structure, there are many action links for the lifting of the needle plate. In particular, the reliability of the exit channel of the braided guide plate cannot be guaranteed for a long time, because the tension spring connected to the tail end of the swing arm is prone to fatigue. For details, please refer to the second-to-last line on page 6 to the 18th line on page 7 of the patent specification

And once the braid guide plate cannot be effectively avoided, the situation that the needle plate hits the braid guide plate will occur so that the knitting needles (bottom needles) on the needle plate will be damaged.

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