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A home sewer motor actiyator

A motor speed regulation, sewing machine technology, applied in the direction of sewing machine control devices, sewing equipment, sewing machine components, etc., can solve the problem of small output torque and achieve the effect of smooth needle movement

Inactive Publication Date: 2008-08-06
NINGBO GUGAO NC SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a motor speed regulating controller of a household sewing machine, which solves the technical problem that the output torque of the household sewing machine is small when the household sewing machine is running at a low speed

Method used

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  • A home sewer motor actiyator
  • A home sewer motor actiyator
  • A home sewer motor actiyator

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Experimental program
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Effect test

Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] As shown in Figures 1 and 2, the pedal control panel of the household sewing machine is formed by interlocking the front cover 1 and the rear cover 5. One end of the two is connected by rotation, and the other end is pushed against by a built-in spring. When the machine stops, the The lower edge of the end upper cover 1 is engaged with the upper edge of the lower cover 5 . One side of the back cover 5 offers two grooves, and the ends of the control line plug 6 and the power line plug 7 are respectively inserted into the two grooves and then buckled into the lock plate 4 to fix. A protrusion 11 is provided on the inner side of the rear cover 5, and the M3X8 self-tapping screw 2 is screwed into the protrusion 11 to fix the circuit board 3 between the front cover 1 and the rear cover 5. The circuit board 3 is provided with a chute, and the chute is built in Inse...

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Abstract

The invention belongs to the sewing machine manufacturing technique technical field and relates to a motor velocity modulation controller of a domestic sewing machine. The motor velocity modulation controller is in electric connection with a power supply and a motor and comprises a rectification circuit, a regulated power supply circuit, a detection and control circuit, a plug-in unit and a foot pedal control circuit, wherein, the rectification circuit is in electric connection with the power supply, the regulated power supply circuit, the detection and control circuit and the plug-in unit, the detection and control circuit is in electric connection with the plug-in unit and the motor, the plug-in unit is in electric connection with the foot pedal control circuit. The motor velocity modulation controller of the domestic sewing machine can regulate the output moment of the motor automatically according to the size of the practical load and effectively controls the motor to realize the output with low speed and great moment, thereby ensuring that a shank runs stably when thick cloth is sewed. In addition, the motor velocity modulation controller of the domestic sewing machine of the invention is also provided with a shank stopping sensor; when the sensor receives the stopping command, the top stitch position of the shank can be found and the machine stops at the position.

Description

technical field [0001] The invention belongs to the technical field of sewing machine manufacturing, in particular to a motor speed regulating controller of a household sewing machine. Background technique [0002] At present, the motor speed controller of the household multifunctional sewing machine usually uses a resistance-capacitance phase-shift control thyristor to realize voltage adjustment, so as to achieve the purpose of controlling the motor speed. However, in some high-end household sewing machines, the motor adopts a DC permanent magnet brushed motor or a series excited DC brushed motor, and a speed sensor is installed on the motor shaft to measure the speed, and the constant torque output control is realized through the PID adjustment of the computer chip. But, there is following shortcoming in the motor speed regulating controller of above-mentioned household sewing machine. First of all, when the motor is running at low speed, due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P7/28H02P7/295D05B69/00D05B69/22
Inventor 杨卫
Owner NINGBO GUGAO NC SCI & TECH
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