Thread hooking device for sleeving and sewing integrated machine

Abstract

The invention provides a thread hooking device for a sleeving and sewing integrated machine, and belongs to the technical field of sewing machines. The thread hooking device for the sleeving and sewing integrated machine solves the problem that the conventional thread hooking device is not suitable for high-speed sewing. According to the thread hooking device for the sleeving and sewing integrated machine, the sleeving and sewing integrated machine comprises an enclosure, a main shaft is connected rotatably in the enclosure, the thread hooking device comprises a thread hooking rod, one end of the thread hooking rod is fixedly connected with a thread hooking needle, the thread hooking rod is rotatably connected in the enclosure, a thread pressing rod is rotatably connected in the enclosure, a thread pressing needle is fixedly connected at the lower end of the thread pressing rod, the thread pressing needle and the thread hooking needle are arranged in a crossed manner, a push and pull connecting rod is arranged between the main shaft and the thread hooking rod and between the main shaft and the thread pressing rod, and drives the thread hooking rod and the thread pressing rod to synchronously rotate in a reciprocating manner when the main shaft rotates, and the rotating directions of the thread pressing rod and the thread hooking rod are opposite. The thread hooking device for the sleeving and sewing integrated machine hooks a thread more stably; the thread hooking device for the sleeving and sewing integrated machine suitable for high-speed sewing hooks the thread more stably, and is suitable for high-speed sewing.

Description

technical field [0001] The invention belongs to the technical field of sewing machines, and relates to a thread hooking device of an oversewing integrated machine. Background technique [0002] The all-in-one sewing machine is a kind of sewing machine. It is a new type of sewing machine for woolen sweaters. In addition to the work of the needle, the all-in-one machine needs to be equipped with a thread hook device. However, the thread hook device on the traditional all-in-one machine uses The way that the cam drives the telescopic rod, such as the sealed thread hooking device of a fur machine disclosed in the Chinese utility model patent application (application number: 200920121080.0), includes a casing and a crochet rod seat, and one end of the crochet rod seat is connected to the inside of the casing. The driving mechanism is a cam structure, and the other end of the crochet rod seat protrudes out of the casing through a through hole provided on the side wall of the casin...

AI Technical Summary

Problems solved by technology

[0002] The all-in-one sewing machine is a kind of sewing machine. It is a new type of sewing machine for woolen sweaters. In addition to the work of the needle, the all-in-one machine needs to be equipped with a thread hook device. However, the thread hook device on the traditional all-in-one machine uses The way that the cam drives the telescopic rod, such as the sealed thread hooking device of a fur machine disclosed in the Chinese utility model patent application (application number: 200920121080.0), includes a casing and a crochet rod seat, and one end of the crochet rod seat is connected to the inside of the casing. The driving mechanism is a cam structure, and the other end of the crochet rod seat protrudes out of the casing through a through hole provided on the side wall of the casing and can be used for the crochet rod seat to swing up and down, and the end is connected to the crochet rod and the hook rod in turn The crochet needles in the crochet device are bent and can play the role of hooking thread, but when the suture speed is increased, the crochet needles that are only bent but not closed are very easy to get off the thread after hooking the suture, and the cam structure vibrates during operation It is also relatively large, and the free end of the crochet rod will jump when it is stretched at high speed. Therefore, the hook thread stability of this hook thread device is poor, and it is not suitable for high-speed sewing.

[0003] And as Chinese utility model patent application (application number: 201420755687.5) discloses a kind of thread grabbing device of sewing machine, comprises the backguy cylinder that is located at the sewing machine head side and the backguy hook that is driven by the backguy cylinder, also includes being fixed on the sewing machine head Thread clamping block, a thread pressing block that cooperates with the thread clamping block to clamp the suture, and a thread clamping block that drives the thread clamping block and driver after the wire hook hooks the thread. Although the thread grabbing device is equipped with a thread pressing block to cooperate with the wire hook, However, the crimping block is always stationary during the thread catching process, and the thread hook needs to protrude through the thread crimping block. Therefore, when suturing at high speed, there is a risk that the thread hook will go off the thread at the initial stage of hooking, and the thread hook will also be stretched when stretching at high speed. Jumping, causing the hook thread to be unstable, so the thread catcher is still not suitable for high-speed suturing

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