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Apparatus for controlling rotating speed of motor by use of pedal

A technology of motor speed and pedals, which can be applied to control devices for sewing machines, sewing machine components, textiles and papermaking, etc., and can solve problems such as inability to achieve precise linear control of speed

Inactive Publication Date: 2015-09-16
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This control method cannot achieve precise linear control of the speed

Method used

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  • Apparatus for controlling rotating speed of motor by use of pedal

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Experimental program
Comparison scheme
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Embodiment 1

[0016] Such as figure 1 As shown, a device for controlling the speed of a motor with a pedal includes a base plate 1, a pedal assembly 2, a spring 3, a distance sensor 4 and a circuit control module. The pedal assembly 2 is arranged on the base plate 1, and the pedal assembly 2 includes a pedal and a rotating base, the pedal is rotatably arranged on the rotating base, and the rotating base is fixed on the base plate 1. A spring 3 is arranged between the middle part of the pedal and the bottom plate 1. The spring 3 is a two-way spring. The bottom plate 1 corresponding to the end of the pedal is provided with a distance sensor 4, which can sense the distance between the end of the pedal. base plate distance. Stepping forward, the pedal moves downward against the elastic force of the spring, and the distance sensor 4 feeds back the sensed distance information to the circuit control module, and the circuit control module uses this to control the forward rotation speed of the moto...

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PUM

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Abstract

The invention provides an apparatus for controlling the rotating speed of a motor by use of a pedal. The apparatus comprises a base plate and the pedal arranged on the base plate. The pedal is rotationally fixed on the base plate, a spring is connected between the central portion of the pedal and the base plate, the base plate opposite to the tail end of the pedal is provided with a distance inductor, the distance inductor is connected with a circuit control module, and the circuit control module, according to the distance between the tail end of the pedal and the base plate, transmitted by the distance inductor, realizes control of the rotating speed of the motor. When the pedal is stepped on forwardly, the rotating speed of the motor is in inverse proportion to the distance between the tail end of the pedal and the base plate; and when the pedal is stepped on reversely, the rotating speed of the motor is proportional to the distance between the tail end of the pedal and the base plate. The apparatus provided by the invention can realize linear accurate control of the rotating speed of the motor.

Description

technical field [0001] The invention relates to a motor speed control device for a sewing machine. Background technique [0002] The sewing machine in the prior art controls the speed by setting a magnetic block on the connecting rod of the pedal, and a magnetic induction sensor is arranged on one side of the magnetic block. This control method cannot achieve precise linear control of the speed. Contents of the invention [0003] In order to solve the above problems in the background technology, the present invention provides a device for controlling the rotation speed of a motor with a foot pedal, which can realize precise linear control of the rotation speed of the motor. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A device for controlling the rotational speed of a motor with a foot pedal, comprising a bottom plate and a foot pedal arranged on the bottom plate, characterized in that the foot pedal is ro...

Claims

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Application Information

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IPC IPC(8): D05B69/00
Inventor 厉恺杰
Owner JACK SEWING MASCH CO LTD