Device for automatic separation and resetting of needle rods of double-needle machine

Abstract

The invention provides a device for automatic separation and resetting of needle rods of a double-needle machine. The device comprises a sliding shaft, one end of the sliding shaft is connected with a separating assembly, the other end of the sliding shaft is connected with a resetting assembly, the separating assembly comprises a swing rod and a driving rod which can conduct straight reciprocating motion, one end of the swing rod is connected with the sliding shaft, the other end of the swing rod is connected with the driving rod, the middle portion of the swing rod can be rotatably connected with an installation frame, the driving rod is connected with a driving mechanism, and the driving mechanism is connected with an automatic control system. According to the device for automatic separation and resetting of the needle rods of the double-needle machine, the driving mechanism is controlled by the automatic control system to act, so that the sliding shaft is driven to act, and the needle rods are separated; stitch numbers of single needle rod walking are controlled by the automatic control system, so that the stitch numbers of single needle rod walking before and after rotation of a sewing material during corner sewing are consistent, and the sewing precision and the sewing stability are improved; and the operation of the corner sewing is simplified, so that the speed of the corner sewing is accelerated, and the production efficiency is effectively improved.

Description

technical field [0001] The invention relates to a sewing machine, in particular to a needle bar automatic separation and reset device for a double-needle machine. Background technique [0002] Double-needle machine is a sewing machine with two machine needles. The stitches it sew are two parallel and parallel sutures. Due to the high efficiency of double-needles and the parallel and beautiful appearance of double-needles, it is widely used. In the mass-produced garment industry. [0003] See figure 1 , the needle bar separation and reset device of the double-needle machine all includes a separation assembly 1' and a reset assembly 2', which are used to start or end corner sewing respectively. Currently, the separation assembly 1' includes a switch assembly 11', a limit plate 12', a limit block 13', a spring 14' and a reset plate 15', and the switch assembly 11' includes a switch wrench 111'. The switch assembly 11' is installed on the machine head of the double-needle mac...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an automatic separation and reset device for the needle bar of a double-needle machine, so as to overcome the difficulty in grasping the operation of pulling the switch when sewing corners in the prior art, and the two-way front and back. The defect that the number of sewing stitches is not the same

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