A kind of garment dyeing metered charge automatic control system based on PLCTechnical field
The utility model relates to automatic control system, especially relates to a kind of garment dyeing metered charge automatic control system based on PLC.
Background technology
In dyeing, the factor of influence dyeing mainly contains bath raio, temperature, time, auxiliary agent and dyes pre-treatment etc.Traditional dyeing mainly is to the outfit of temperature, dyestuff and auxiliary agent and the control of injection length; And ignored the injection mode of auxiliary agent, heat up with temperature-fall period in reinforced be to lean in experienced technologist or the operation water tank of the dye liquor that configures or auxiliary agent directly being poured into the usefulness that dyes, this artificial consumption or injection mode are improper; Problem such as can cause that look flower, aberration and dyestuff are saltoutd; Also might make dyeing speed too fast, cause uneven dyeing, also possibly cause the gathering or the deposition of dyestuff simultaneously; Thereby the instability, the percent defective height that cause the textile dyeing quality, thereby product specification can't improve.Traditional simple feed way is can't not guarantee dyeing quality, must adopt the measure control mode, could satisfy the dyeing requirement effectively.
The utility model content
The purpose of the utility model is to solve some problems that exist in the reinforced control system in the present prior art, and a kind of garment dyeing metered charge automatic control system based on PLC is provided.
The utility model is that the technical scheme of technical solution problem is:
A kind of garment dyeing metered charge automatic control system based on PLC; It is characterized in that said metered charge automatic control system is made up of water vat, water tank, dye vat, high water level sensor, flow detection meter, magnetic drive pump, mixer and programmable logic controller (PLC); Said water vat and water tank, dye vat pipeline are interconnected; Said flow detection meter, magnetic drive pump are installed on the conveyance conduit of water tank and dye vat, and the output of flow detection meter connects programmable logic controller (PLC), and said magnetic drive pump is connected with said flow detection meter; Mixer places in the dye vat, and high water level sensor is positioned at dye vat top.
The utility model programmable logic controller (PLC) (PLC) is mainly used in the flow velocity of calculating auxiliary agent dye liquor and total injection volume; The memory that employing can program is used within it portion's storage metered charge instruction, and can control magnetic drive pump through digital or analog input and output.Said water vat links to each other with said dye vat, is mainly used in to stir auxiliary agent and water, forms compounding agent solution and stores said water tank into; Said water tank links to each other with said dye vat, water vat, is to be used to store the compounding agent solution that said water vat is come, and water promptly dyes; Said dye vat links to each other with water tank, is main controlled target temperature, through carrying the dyeing water of coming that ready-made clothes is dyeed from water tank; When the water yield that said high water level sensor detects adding reached the amount of appointment, valve-off stopped to add water; Said flow detection meter is connected with said water tank, said magnetic drive pump, and the flow velocity of water storage cylinder solution is injected in monitoring in real time, and sends the umber of pulse that records to said PLC, and said PLC can draw the flow velocity of solution and total injection volume through calculating; Magnetic drive pump is connected with said flow detection meter, mainly the charging rate of auxiliary agent is controlled; Mixer is mainly used in and stirs auxiliary agent and water, makes it to form uniform compounding agent solution;
The reinforced program of said metering computer adopts the PLC trapezoidal pattern programming to realize the control of various logic sequential control and flow rate detection.
Based on technique scheme, the utlity model has following beneficial effect:
1, realizes reinforced nonlinear Control, improved dyeing quality and dye stability greatly;
2, in traditional metered charge control system, simply transform, simple in structure, use and easy to maintenance, with low cost is suitable for generally promoting.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the reinforced program flow diagram of the metering computer of the utility model.
The specific embodiment
Through accompanying drawing and specific embodiment the technical scheme of the utility model is done further below and described in detail.
As shown in Figure 1, said dyeing is controlled system and is made up of water vat 1, water tank 2, dye vat 3, high water level sensor 4, flow detection meter 5, magnetic drive pump 6, mixer 7.
Operating personnel add auxiliary agent in the said water vat 1, add water simultaneously, when the solution of 1 li of said water vat is added to specified amount; Valve closing stops to add water, presses said mixer 7 switches; Said mixer 7 can continuous stirring 10 minutes, if desired, can suspend stirring at any time in the whipping process; Through stirring, amount of auxiliary is fully dissolved.Behind the compounding agent solution that obtains stirring; When needing to feed in raw material; Operating personnel press reinforced switch, and the utility model begins to join solution automatically according to the nonlinear velocity of the range request that fed in raw material the water tank 2 of said dyeing water, under the situation that water intaking valve is opened, flow into the said dye vat 3 from said water tank 2 then; When the solution of 1 li of said water vat all flowed into said water tank 2, said magnetic drive pump 7 quit work.
When the water yield that said high water level sensor 4 detects adding reached the amount of appointment, valve-off stopped to add water;
Said flow detection meter 5 is connected with said water tank 2, said magnetic drive pump 6, and the flow velocity of said water tank 2 solution is injected in monitoring in real time;
Said magnetic drive pump 6 is connected with said flow detection meter 5, mainly the charging rate of auxiliary agent is controlled;
As shown in Figure 2; Be the reinforced program flow diagram of the metering computer of the utility model; The reinforced program of said metering computer can realize that automatic/hand switches with frequency conversion/power frequency and switch (if need fast during the described water tank 2 of injection, can adopt the power frequency operation pattern to compounding agent solution).When adopting the variable frequency starting mode, the frequency of said frequency converter 6 rises to 25Hz in the 3s of beginning, drops to low-limit frequency through 2s again, and this start-up course air in the compounding agent solution transfer canal of can draining makes the solution threshold speed minimum.Frequency converter is that linearity increases by slow the acceleration with the flow that guarantees solution of low-limit frequency then, thereby the injection rate of solution is increased progressively in a square ratio in time, satisfies technological requirement.
Above embodiment is only in order to explain the technical scheme of the utility model; But not the utility model is made restrictive sense; Every technical spirit according to the utility model is to any simple modification, equivalent variations and modification that above embodiment did, all should think the protection domain that belongs to the utility model.