Fixed-length wire feeding device and wire feeding method

Abstract

The invention discloses a fixed-length wire feeding device which comprises a stander, a pair of wire feeding wheels, a motor, a controller and a transmission mechanism, wherein the stander is provided with a driving shaft and a driven shaft; the pair of wire feeding wheels comprise a driving wheel sleeved on the driving shaft and a driven wheel sleeved on the driven shaft; the motor is used for driving the driving shaft to rotate; the controller is used for controlling the rotation angle of the motor; and the transmission mechanism is used for delivering power output by the motor to the driven wheel, so that the driven shaft and the driving shaft rotate synchronously at a constant speed. The invention also discloses a wire feeding method. In the method, the controller is utilized to control the rotation angle of the motor so as to control the rotation angles of the driven wheel and driving wheel which are used for feeding wires, thereby realizing the fixed-length wire feeding. According to the invention, the rotation angle of the motor is completely controlled by the controller, so that the fixed-length wire feeding can be realized; and in a wire feeding process, the position of the driven wheel can adaptively move up and down according to the diameter of a fuse wire under the action of a compensating spring, thereby eliminating the influence of the diameter error of the fuse wire on the wire feeding driving power and improving the wire feeding size precision.

Description

technical field [0001] The invention relates to a fixed-length wire feeding device and a wire feeding method thereof. Background technique [0002] As the technological content of electrical products is getting higher and higher, the development of wire threading machine has become one of the research difficulties in the field of electrical appliances at home and abroad. Especially in the process of producing fuses, wire threading is an important link in fuse assembly, due to its difficulty (0.25mm fuse passes through 0.35mm hole, unilateral allowable error is 0.05mm), efficiency requirements High (the system requires the wire feeding action of 80mm length to be completed within 0.5s) and high robustness requirements (the error of parts is more than ten times or even dozens of times the allowable error of threading), so efficient wire feeding It is also one of the problems to be solved urgently in the current fuse production field. At present, there is no self-developed wi...

AI Technical Summary

Problems solved by technology

At present, there is no self-developed wire threading machine in the field of low-voltage fuse manufacturing in China, while the assembly of fuses in foreign countries mainly adopts the assembly method of cylinder clamping fuses. This method not only requires manual intervention, but also reduces production efficiency. Low, the dimensional accuracy of the wire feeding cannot be precisely controlled due to the influence of back-sliding and the return stroke of the wire feeding shaft. In addition, the device realizes the function of passing the 0.25mm fuse wire through the 0.5mm hole, so it is difficult to meet the requirements of current fuse manufacturing. needs

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