CN202231670U

CN202231670U - Special-purpose frequency converter for rotary cutting

Info

Publication number: CN202231670U
Application number: CN2011204046580U
Authority: CN
Inventors: 张培星
Original assignee: ZIBO SANPIN ELECTRONIC TECHNOLOGY CO LTD
Current assignee: Shandong three Electronic Technology Co. Ltd.
Priority date: 2011-10-22
Filing date: 2011-10-22
Publication date: 2012-05-23
Anticipated expiration: 2021-10-22

Abstract

A special-purpose frequency converter for rotary cutting belongs to the field of frequency converter control, and comprises a CPU, a PLC circuit, a rotary cutting signal collection circuit and a frequency conversion output circuit. The PLC circuit is electrically connected with the CPU. The rotary cutting signal collection circuit is electrically connected with the CPU. The CPU is electrically connected with the frequency conversion output circuit. According to the special-purpose frequency converter for rotary cutting, rotary cutting control and general frequency conversion are integrated together, CPU software is utilized for calculation, and the rotating speed of a motor, which is pushed by a cutter, is continuously adjusted through frequency conversion, thereby fitting the propulsion track grooves of the cutter in a steering wheel. No mechanical sliding friction occurs, so that the problem of the service life is not liable to occur, a lot of non-ferrous metals are saved, and a lot of electric energy is saved.

Description

The rotary-cut special converter

Technical field

The invention belongs to the Frequency Converter Control field, be specifically related to a kind of rotary-cut special converter.

Background technology

Traditional peeler cutting knife advances and has adopted mechanical system, promptly settles the steel steering wheel of a hundreds of kilopond at peeler one end, and the steering wheel the inside is provided with the track groove of decision cutting knife fltting speed, and cutting knife track groove thus thrusts.Because what adopt is the sliding friction mode of heavy-duty machinery,, just need change a steering wheel in maximum about 2 years so the damage of track groove is very serious; The serious waste non-ferrous metal; And because be sliding friction, serious waste electric energy, the cost of increase equipment use cost and whole industry chain.

Summary of the invention

The technical problem that the utility model will solve is: overcome the deficiency of prior art, a kind of rotary-cut special converter that integrates rotary-cut control and general frequency conversion is provided.This controller is through the CPU computed in software, constantly regulates the rotating speed of cutting knife propulsion electric machine, the track groove of the propelling of cutting knife in the match steering wheel through frequency conversion.Because there is not the sliding friction of machinery, so there is not the problem in useful life, both saved a large amount of non-ferrous metals, saved a large amount of electric energy again.

The utility model solves the technical scheme that its technical problem adopted: a kind of rotary-cut special converter; Comprise CPU, PLC circuit, rotary-cut signal acquisition circuit and frequency conversion output circuit; Wherein said PLC circuit is electrically connected with CPU each other; Described rotary-cut signal acquisition circuit is electrically connected with CPU, and described CPU is electrically connected with the frequency conversion output circuit.

Preferably, also comprise the fault message testing circuit, described fault message testing circuit is electrically connected with CPU.

Preferably, also comprise communication control circuit, described communication control circuit is electrically connected with CPU each other.

Preferably, also comprise information display circuit, described CPU is electrically connected with information display circuit.

Preferably, also comprise the keyboard to set up circuit, described keyboard to set up circuit is electrically connected with CPU.

Compared with prior art; The beneficial effect of the utility model is: this rotary-cut special converter integrates rotary-cut control and general frequency conversion; Through the CPU computed in software, constantly regulate the rotating speed of cutting knife propulsion electric machine, the track groove of the propelling of cutting knife in the match steering wheel through frequency conversion.Because there is not the sliding friction of machinery, so there is not the problem in useful life, both saved a large amount of non-ferrous metals, saved a large amount of electric energy again.

Described rotary-cut special converter also comprises the fault message testing circuit, can detect information such as voltage, electric current, temperature, avoids that motor transships, underload, overvoltage, under-voltage, overheated, phase shortage etc., and the protection motor prolongs motor useful life.

Described rotary-cut special converter also comprises communication control circuit, can realize and the information interaction of host computer, is used for the remote monitoring of controller.

Described rotary-cut special converter also comprises information display circuit, can clearly illustrate information such as each state information such as running length, the speed of service, range ability, rotary-cut number, running frequency, output current, fault message, operation process, inner parameter.

Described rotary-cut special converter also comprises the keyboard to set up circuit, can realize modification, the controller of parameter startup, stop, function such as fault resets.

Description of drawings

Fig. 1 is the system architecture diagram of the utility model embodiment.

Mark among the figure:

1, CPU; 2, PLC circuit; 3, rotary-cut signal acquisition circuit; 4, frequency conversion output circuit; 5, fault message testing circuit; 6, communication control circuit; 7, information display circuit; 8, keyboard to set up circuit.

Embodiment

Below in conjunction with accompanying drawing embodiment, the utility model done further describing:

As shown in Figure 1; A kind of rotary-cut special converter comprises CPU1, PLC circuit 2, rotary-cut signal acquisition circuit 3, frequency conversion output circuit 4, fault message testing circuit 5, communication control circuit 6, information display circuit 7 and keyboard to set up circuit 8, and wherein said PLC circuit 2 is electrically connected with CPU1 each other; Described rotary-cut signal acquisition circuit 3 is electrically connected with CPU1; Described CPU1 is electrically connected with frequency conversion output circuit 4, and described fault message testing circuit 5 is electrically connected with CPU1, and described communication control circuit 6 is electrically connected with CPU1 each other; Described CPU1 is electrically connected with information display circuit 7, and described keyboard to set up circuit 8 is electrically connected with CPU1.

During use; The user passes through keyboard to set up circuit 8 or host computer earlier through communication control circuit 6; Relevant informations such as thickness that will rotary-cut, toggle speed, locating speed, opening size are delivered to CPU1, and CPU1 carries out information and differentiates, after confirmation is correct information are stored memory.

After powering on; CPU1 is delivered in relevant instructions such as the user can will start through keyboard to set up circuit 8, PLC circuit 2 or communication control circuit 6, stops, F.F., rewind down; CPU1 judges after the relevant instruction; To start again, stop, execution actions such as F.F., rewind down deliver to cutting knife propulsion motor and relevant peripheral actuator through PLC circuit 2 with frequency conversion output circuit 4, the startup of control cutting knife propulsion motor, stop, the exercises of F.F., rewind down and peripheral actuator.

In service; CPU1 constantly gathers the rotating speed of material, the position of cutting knife, the running speed of cutting knife propulsion motor through signal acquisition circuit; Position calculation according to cutting knife goes out the current diameter of material, and then according to the diameter of material, the rotating speed of material, through related operations such as PID and linear velocities; Calculate the current speed that should advance of cutting knife; And then be converted into the due running speed of cutting knife motor, and through frequency conversion output circuit 4 control cutting knife motor operations, the cutting knife that simulates traditional peeler steering wheel advances track.

The supply power voltage of CPU1 through 5 pairs of systems of fault message testing circuit, output voltage, output current, working temperature etc. detect; Check whether overvoltage is arranged, faults such as under-voltage, overload, excess temperature take place; If there is fault to take place; Then report to the police immediately or relevant protection action such as shutdown, to guarantee user's personal safety as well as the property safety.

In service; Detect halt instruction like CPU1, or the current running status of the automatic memory of CPU1 meeting is shut down in the automatic protection that detects after the fault from keyboard to set up circuit 8, PLC circuit 2 or communication control circuit 6; So that when starting once more, current material is not wasted.

In the whole process, CPU1 is through information display circuit 7, and the various operation informations of system, fault message etc. are shown.

The above; It only is the preferred embodiment of the utility model; Be not to be the restriction of the utility model being made other form, any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every the utility model technical scheme content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection range of the utility model technical scheme according to the technical spirit of the utility model.

Claims

1. rotary-cut special converter; It is characterized in that: comprise CPU, PLC circuit, rotary-cut signal acquisition circuit and frequency conversion output circuit; Wherein said PLC circuit is electrically connected with CPU each other; Described rotary-cut signal acquisition circuit is electrically connected with CPU, and described CPU is electrically connected with the frequency conversion output circuit.

2. rotary-cut special converter according to claim 1 is characterized in that: also comprise the fault message testing circuit, described fault message testing circuit is electrically connected with CPU.

3. rotary-cut special converter according to claim 1 and 2 is characterized in that: also comprise communication control circuit, described communication control circuit is electrically connected with CPU each other.

4. rotary-cut special converter according to claim 3 is characterized in that: also comprise information display circuit, described CPU is electrically connected with information display circuit.

5. rotary-cut special converter according to claim 4 is characterized in that: also comprise the keyboard to set up circuit, described keyboard to set up circuit is electrically connected with CPU.