JPS60182970U

JPS60182970U - Sewing machine needle thread supply device

Info

Publication number: JPS60182970U
Application number: JP6399785U
Authority: JP
Inventors: 飯村　郁朗; 佐久間　邦晴; 大木　正好
Original assignee: ジューキ株式会社
Priority date: 1985-04-27
Filing date: 1985-04-27
Publication date: 1985-12-04
Also published as: JPS6121020Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は要部の斜親図、第６図は電気回路のブロック図
、第３図はタイムチャート、第４，５図は作用説明区で
ある。大枠血嶽　／　　　　＼権置検訟肋（Ａ）（１ｆｆｉオ灸出出力（Ｂ）身Ｔｈり出し体ＩＩＩ線１１籠石（Ｓ６Ｌ、２））；■１■■〒］云、　　　　
謙Ｖ寓Ｕ会出出力＋ａｌｘ　（ｓｏｃ−ｓｉ”ｒ’−寸”↑ ＝−丁＝＝ｎ古書づ才FIG. 1 is a diagonal diagram of the main parts, FIG. 6 is a block diagram of the electric circuit, FIG. 3 is a time chart, and FIGS. 4 and 5 are explanations of the operation. Large frame blood box / ＼ title prosecutor's office (A) (1ffi moxibustion output (B) body Th exposed body III line 11 basket stone (S6L, 2));■1■■〒] Yun,
KenVegageU output + alx (soc-s i"r'-size"↑ =-ding==n old books

Claims

[Claims for Utility Model Registration] Disposed on the needle thread path between the thread take-up and the needle thread supply source so as to be spaced apart from each other at the front and the front in the needle thread supply direction, so that the needle thread cannot pass through due to its action and has no effect. The first and second holding means 2゜3 allow the needle thread to pass through, and the guide handle is arranged on the needle thread path between the holding means and changes the needle thread path between the rows. A feed-out body 9 that operates in synchronization with the thread take-up, and a feed-out body 9 that operates in synchronization with the thread take-up so that the length increases at a time other than the time when the thread take-up tensions the needle thread before reaching its maximum tension. It engages with the needle thread between the first holding means in front of the feeding body and the second holding means in front of the feeding body, and rotates in proportion to the increase in the length of the needle thread path between the holding means caused by the feeding body. A feed-out detection device 27 which has a rotating body 18 and generates a thread amount detection signal corresponding to the rotation angle of the rotating body 18, and a feed-out detection device 27 which is arranged in relation to the main shaft and detects a specific rotation angle of the main shaft corresponding to the needle thread relaxation timing by a balance and determines the position. A position detection device 28 that generates a signal, a setting device 30 that can generate a setting signal corresponding to the length of needle thread required for stitch formation in response to different sewing conditions, and a thread amount detection signal and a setting signal. and a comparison circuit that generates a coincidence signal when they match, and always makes the first holding means inactive in relation to the coincidence signal and ineffective in relation to subsequent position signals; and a control circuit for controlling the second holding means to be activated and deactivated in relation to the coincidence signal or the subsequent position signal and then activated before the start of the tensioning period of the needle thread by the thread take-up. Needle thread supply device for sewing machine.