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Control device of sewing machine

A control device, sewing machine technology, applied in the direction of sewing machine control device, sewing machine components, motor control, etc., to achieve the effect of improving proficiency and sewing speed, high-speed and high-speed sewing operation, and high-efficiency sewing operation

Active Publication Date: 2010-10-06
JUKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, in other existing sewing machine control devices, the driving speed of the sewing machine main shaft corresponding to the operating position of the operator on the operation pedal is limited, and the sewing machine main shaft is driven

Method used

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  • Control device of sewing machine
  • Control device of sewing machine
  • Control device of sewing machine

Examples

Experimental program
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Embodiment Construction

[0033] Below, refer to Figure 1 to Figure 15 , an embodiment of the control device for the sewing machine according to the present invention will be described.

[0034] like figure 1 As shown, the sewing machine 1 according to this embodiment is omitted because the mechanical structure is a known structure, and it has: the sewing machine main shaft 10, which is rotationally driven by the driving of the main shaft motor 11; and the sewing needle 5, which is held on the The lower end of the needle bar (not shown) connected to the main shaft. The sewing machine main shaft 10 is rotated by rotationally driving the main shaft motor 11, and the sewing needle 5 is moved up and down via a needle bar connected thereto.

[0035] A needle position detection unit 7 is provided near the needle bar, which detects that the vertically moving needle 5 reaches a predetermined vertical movement position, and outputs a needle position signal. The needle position detection unit 7 detects the u...

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PUM

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Abstract

The invention relates to a control device of a sewing machine, which performs sewing operation at high speed and high efficiency and improves the proficiency and sewing speed of the operator not familiar to the sewing machine operation. The control device includes a recording mode control portion which respectively correlates acceleration change rate and deceleration change rate in an acceleration instruction region of an operative position signal in a recording mode with a corresponding acceleration beginning needle number and a deceleration beginning needle number in the acceleration instruction region and stores; and an auxiliary control portion which corrects the operative position signal of the acceleration instruction part output in the correction executing mode, to make the acceleration change rate correspond to the acceleration beginning needle number of a counting value closest to the acceleration beginning position and make the acceleration change rate close to that stored in the recording mode, and corrects the operative position signal of the deceleration instruction part to make the deceleration change rate correlate with the deceleration beginning needle number of the counting value closest to the deceleration beginning position and make the deceleration change rate close to that stored in the recording mode.

Description

technical field [0001] The present invention relates to a control device for a sewing machine, which drives a spindle motor of a sewing machine main shaft by an operator's operation of an operation pedal to perform sewing operations. Background technique [0002] Conventionally, there is known a control device for a sewing machine that performs a sewing operation while changing the driving speed of a spindle motor of a main shaft of the sewing machine by pressing an operation pedal by an operator. [0003] A current sewing machine control device, for example, detects an operation position corresponding to the amount of depression of the operation pedal by the operator, and controls the driving speed of the spindle motor of the sewing machine main shaft based on the operation position signal corresponding to the detected operation position. . [0004] In addition, in other conventional sewing machine control devices, the driving speed of the sewing machine main shaft is limi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B19/02D05B69/10D05B69/18D05B19/12H02P29/00
Inventor 中山元
Owner JUKI CORP
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