CN101693175A - Bi-component rubber-mixing machine and closed-loop control method for rubber mixing thereof - Google Patents
Bi-component rubber-mixing machine and closed-loop control method for rubber mixing thereof Download PDFInfo
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- CN101693175A CN101693175A CN200910092671A CN200910092671A CN101693175A CN 101693175 A CN101693175 A CN 101693175A CN 200910092671 A CN200910092671 A CN 200910092671A CN 200910092671 A CN200910092671 A CN 200910092671A CN 101693175 A CN101693175 A CN 101693175A
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Abstract
The invention relates to a bi-component rubber-mixing machine and a closed-loop control method for rubber mixing thereof. The bi-component rubber-mixing machine comprises a raw material barrel for filling rubber, a raw material barrel for filling a curing agent, an electrical control cabinet and a rubber-mixing pipe. The bi-component rubber-mixing machine is characterized by comprising two sets of primary booster pump groups, two secondary adjustable quantitative delivery pumps, a flow meter and a controller, wherein the two sets of primary booster pump groups are respectively connected with the rubber raw material barrel and the curing agent raw material barrel in a matching mode; the flow meter is used for monitoring the delivery pumps and sending signals to the controller; and the controller is used for collecting the signals sent by the flow meter, sending the signals to a frequency modulation motor of a secondary pump and feeding the signals back for controlling the rotary speed of the secondary pump. Finally, rubber is mixed statically through a rubber-mixing pipe. With simple structure, the bi-component rubber-mixing machine is easy to operate and runs closely in a pipeline without polluting the environment. The controller is used for receiving the signals sent by the flow meter and feeding the signals back for controlling the rotary speed of the delivery pumps and a bolt pump so as to control the error range of the mixing rate of the rubber to the curing agent to be smaller than plus/minus 0.5 percent and meet the rubber-mixing requirement for accurate rate control. The invention can ensure the purified use of the rubber and the curing agent and is beneficial to popularization and application.
Description
Technical field
The present invention relates to a kind of mixed glue machine and mix gluing method, specifically is a kind ofly to be used to mix gel quantity and to set arbitrarily, mix continuously, and the two components that can regulate mixed proportion arbitrarily mixes glue machine and the closed loop control method that should mix the mixed glue of glue machine.
Background technology
Existing mixed glue machine is generally mechanical agitation type and mixes the glue machine, big for requiring in the unit interval to mix quantity, the mixing of the bi-component glue that the mixing ratio error scope is little, as polyurethane glue, epoxide-resin glue, all be after adopting glue and the independent weighing of curing agent, pour into together in the stirred vessel, mix glue and curing agent back standby by churned mechanically method.But the mixed glue machine of this class can produce in the process of high-speed stirred bi-component glue or be involved in a large amount of bubbles, complex operation, and the smell volatilization is serious, easy contaminated environment.
In the manufacturing of composite material blade, technology such as bonding to the manufacturing process of vacuum infusion resin and blade part beam and web and blade all has strict requirement, used resin glue and bonded adhesives require the mixing ratio error scope little, do not allow entrained air bubbles in the glue after the mixing.For this reason, the existing existing static mixing equipment that adopts high-pressure plunger pump to play glue, but because glue and curing agent to annotating the corrosion wear of plug pump seal ring, usually cause the imbalance of glue and curing agent ratio.
Summary of the invention
For solve in the above-mentioned prior art glue and curing agent easily produce out of proportion, and complex operation, the defective of contaminated environment etc. the object of the present invention is to provide a kind of pair of component to mix the glue machine and mixes gluing method with the closed-loop control that should mix the glue machine.
To achieve these goals, the present invention adopts following technical scheme: a kind of pair of component mixes the glue machine, it comprise the collagen charging basket that glue is housed, the curing agent Raw material pail that curing agent is housed, with collagen charging basket and curing agent Raw material pail and the mixed sebific duct that connects and the electrical control cabinet of peripheral hardware; Its characteristics are: it also is provided with:
Regulate 2 of constant-delivery pumps, be provided with respect to described collagen charging basket and described curing agent Raw material pail respectively; The input of 2 adjusting constant-delivery pumps respectively by pipeline separately be connected with Raw material pail bottom delivery outlet that it is oppositely arranged, the output of 2 described adjusting constant-delivery pumps is connected with described mixed sebific duct input by the pipeline that is provided with pipeline flowmeter respectively; Frequency modulation motor all is equipped with on the top of every adjusting constant-delivery pump;
One controller is arranged in the described electrical control cabinet; 2 described frequency modulation motor outputs are connected to respectively on the 1st, 2 input interfaces of described controller, receive the speed-regulating signal that described controller sends; 2 described pipeline flowmeters are connected with the data-interface of described controller respectively, send actual in the glue amount of pipeline flowmeter or the real-time monitoring information of curing dose to described controller.
Above-mentioned two components mix the glue machine and are applicable to that gumminess and curing agent viscosity all are lower than under the situation of 12000 centipoises (to call CPS in the following text).
If above-mentioned gumminess and curing agent viscosity all is higher than under the situation of 12000CPS, used two components mix in the glue machine, also need be equipped with the booster pump group between adjusting constant-delivery pump and corresponding Raw material pail;
Above-mentioned booster pump group is made of compression set and screw pump; On the top of screw pump the screw pump drive motors is housed, its bottom is connected with an attached platen; Screw pump one end that attached platen is housed vertically inserts in the Raw material pail supporting with it; Above-mentioned compression set is provided with 2 at least, is divided into its supporting Raw material pail periphery, and fixedlys connected with the upper end of screw pump by the constrictor of establishing in this compression set; Screw pump drive motors output respectively with the 3rd, 4 input interfaces of described controller on.
Above-mentioned compression set is provided with the 2-4 platform, and the best is provided with the 2-3 platform; Equal angles is located at described collagen charging basket periphery and described curing agent Raw material pail periphery respectively; This compression set can adopt pneumatic linear actuator, also can adopt hydraulic cylinder.
Controller of the present invention is provided with the PLC control chip in it; What be connected with PLC control chip interface data show touch-screen, deviation alarm, sebific duct road flowmeter, curing agent pipeline flowmeter, online data storage device, DC24V power end and gauge tap; Wherein, data show that the input of touch-screen is connected with the DC24V power end, and data show that the external tapping of touch-screen is plugged with data storage; Described sebific duct road flowmeter is connected with X0, the X1 interface of described PLC control chip respectively with described curing agent pipeline flowmeter; The input of described screw pump drive motors M1, M3 and the input of described frequency modulation motor M2, M4 are connected the contact of contactor KA1, KA2 respectively, and this contactor KA1, KA2 are connected with Y0, the Y1 interface of described PLC control chip; Described screw pump drive motors M1, M3 output and described frequency modulation motor M2, M4 output are connected in parallel on the RS485 of described PLC control chip interface; Described deviation alarm is connected with the Y2 interface of described PLC control chip; Three gauge tap SB1, SB2, SB3 are connected with X4, X5, the X6 interface of PLC control chip respectively.
It is the static sebific duct that mixes that the present invention mixes the used mixed sebific duct of glue machine, and the length that this static state is mixed sebific duct is 550-650mm, and diameter is 20-25mm; Mix the helical stir leaf that a mixing stirring usefulness is housed in the sebific duct inner chamber in described static state.
To achieve these goals, the present invention also provides the above-mentioned mixed glue machine of a kind of usefulness to mix the closed loop control method of glue, and this this method depends on used gumminess and used curing agent viscosity index, when gumminess and used curing agent viscosity all are lower than 12000CPS; The equipment that adopts directly directly is connected 2 adjusting constant-delivery pumps respectively with the curing agent Raw material pail with the collagen charging basket of corresponding setting by pipeline for the mixed glue machine of booster pump group not to be installed, and its control method comprises the steps:
1) in controller PLC control chip, imports predetermined processing compound parameter by the operation keyboard that is arranged on the controller touch display screen;
2) Raw material pail that will fill the Raw material pail of glue and fill curing agent is positioned over respectively on the specific station of described mixed glue machine, and the input of regulating constant-delivery pump is joined by pipeline and corresponding Raw material pail bottom; Start and regulate constant-delivery pump, extraction glue is flowed through respectively with curing agent in the corresponding pipeline flowmeter that is connected, glue volume that corresponding pipeline flowmeter will flow through and the curing agent volume that flows through are given controller with pulse signal form sender respectively, controller contrasts the pulse signal of the pipeline flowmeter of reception in real time with the processing compound parameter of presetting, find deviation, its deviation signal is fed back to described frequency modulation motor, adjust the rotating speed of this frequency modulation motor, control the glue amount of corresponding adjusting constant-delivery pump output and the speed and the proportioning of curing dose;
3) with step 2) in real time to bias correction when, and the glue and the curing agent that meet predetermined processing compound parameter are pressed into static mixing in the sebific duct respectively simultaneously under high pressure and speedup effect, be arranged under helical stir leaf that this static state mixes sebific duct injects the glue of this pipe and curing agent at high pressure the promotion and passive rotation forms turbulent flow, glue and curing agent mix the back and mix sebific duct outlet outflow from static state under turbulent condition, and the container of packing into is standby.
When used gumminess and used curing agent viscosity all are higher than 12000CPS; Be provided with the booster pump group in the mixed glue machine that adopts, its control method comprises that step is as follows:
1) in controller PLC control chip, imports predetermined processing compound parameter by the operation keyboard that is arranged on the controller touch display screen;
2) Raw material pail that will fill the Raw material pail of glue and fill curing agent is positioned over respectively on the specific station of described mixed glue machine, manually sets the operating pressure of compression set in the corresponding booster pump group, starts compression set and makes drawback movement; The screw pump that compression set drives the booster pump group moves down with the attached platen that is connected with its bottom, and glue in the Raw material pail and curing agent are squeezed into the lower port of screw pump under the pressure effect of described compression set;
3) start screw pump drive motors in the corresponding booster pump group, drive screw pump rotary work is with step 2) be squeezed into the rotation by screw rod of the glue of screw pump lower port or curing agent and be delivered to corresponding secondary and regulate in the constant-delivery pump;
4) glue or the curing agent through the output of step 3) adjusting constant-delivery pump flows into respectively in the corresponding pipeline flowmeter, glue volume that corresponding pipeline flowmeter will flow through and the curing agent volume that flows through are given controller with pulse signal form sender respectively, controller contrasts the pulse signal of the pipeline flowmeter of reception in real time with the processing compound parameter of presetting, find deviation, its deviation signal is fed back to described frequency modulation motor, adjust the rotating speed of this frequency modulation motor, control corresponding secondary and regulate the glue amount of constant-delivery pump output and the speed and the proportioning of curing dose;
5) to bias correction when, and the glue that meets predetermined processing compound parameter is pressed under high pressure and speedup effect respectively in the static mixed sebific duct with curing agent step 4) simultaneously through in real time; Be arranged in that this static state is mixed under the promotion of the helical stir leaf of sebific duct injects this pipe at high pressure glue and curing agent and passive rotation forms turbulent flow, export outflow from the mixed sebific duct of static state after glue and curing agent mix under turbulent condition, the container of packing into is standby.
The metering of used pipeline flowmeter output allows deviation in above-mentioned two kinds of methods, and its deviate must be lower than 0.5%; This deviation signal feeds back to before the frequency modulation motor, also is provided with 1 deviation alarm device; Deviation alarm is meant: when described frequency modulation motor can't be finished the rotating speed adjustment; be mixed proportion when exceeding allowable error, the PLC control chip sends alarm signal, makes the Y2 that is connected with the PLC control chip in the controller move alarm lamp and glimmers; the buzzer sounding alarm is shut down simultaneously.Being provided with of this deviation alarm can guarantee the correctness of the epoxy glue mixed proportion that flows out.
Processing compound parameter in the said method step 1) comprises: the mixing ratio of glue and curing agent, the glue amount of output and the curing dose of output in the unit interval; The rotating speed of booster pump group drive motors and the rotating speed of regulating the constant-delivery pump frequency modulation motor.
Used static mixing tube in the inventive method, its length and diameter directly have influence on the uniformity of mixing glue, and it is 550-650mm that the used static state of the present invention is mixed the sebific duct total length, and the best is 600mm; Caliber is 20-25mm, and the best is 25mm; Stir distance as if needing to prolong, the mixed sebific duct of above-mentioned static state length on demand fits together use by the mixed sebific duct of the static state of many above-mentioned length.
After the present invention adopts as above technical scheme, its beneficial effect is as follows: 1) mixed sebific duct of the present invention adopts the static blender that mixes sebific duct as two component raw materials, because before entering static mixed sebific duct, mobile in conveyance conduit of glue and curing agent regulated constant-delivery pump constantly pressurization and speedup by one-level booster pump group and secondary, enter static glue in the sebific duct and the curing agent of mixing because of the existence of speed and pressure is arranged, the static passive rotation of helical stir leaf that mixes in the sebific duct cooperates with the even of curing agent thereby reach glue; Compared with prior art, simple to operate, saved the drawback that high-speed stirred easily produces, and can save energy.2) utilize two Raw material pails that glue and curing agent are provided simultaneously, glue and curing agent are sucked by the one-level booster pump group from Raw material pail separately, regulating constant-delivery pump by secondary flows through behind the pipeline flowmeter to the static sebific duct that mixes again and mixes the back and flow out, whole process is to carry to finish in closed pipeline, can not entrain into bubble and dregs in mixed glue process; Promptly guaranteed the pure use of glue and curing agent, also stopped the pollution of the volatilization of glue and curing agent, avoided the influence of artificial stirring contact glue and curing agent human health to environment.3) bi-component of the present invention is mixed the glue machine, be applicable to the mixed preparing of preparation glass fiber reinforced plastics composite material blade with matched moulds adhering resin glue and curing agent, blade manufacturing matched moulds bonded adhesives and the high requirement of perfusion resin glue distributing precision can be satisfied, and the industrial production needs of continuous and automatic in enormous quantities can be satisfied.4) be provided with PLC control chip, deviation alarm and online record memory in the controller.By execution sequential and desired output quantity to systematic procedure, finish online record, mix the adjustment of gel quantity by pre-set programs, also can show mixed proportion in real time, deviation alarm and autostop can appear when mixed proportion has deviation.Controller shows the quantity that touch-screen can be revised the adjustment mixed proportion easily and single mixes glue continuously by data.This equipment not only can satisfy the fixedly production of mixed proportion glue, and when mixed proportion need be adjusted, only needs to show by data the proportioning numeral of touch-screen modification adjustment glue and curing agent, just can satisfy the production needs; Under the normal condition, as long as the quantity that needs of input mix glue, this mixed glue machine will continuously mix glue and autostop after finishing the mixed glue of setting quantity always.5) mix the glue machine and be set to closed-loop control system, can effectively guarantee to mix the accuracy of glue precision, the metering output error of mixing the glue machine is no more than 0.5%; Further adjust the rotating speed that secondary is regulated constant-delivery pump with pipeline flowmeter sender feedback control signal, controller PLC control chip according to the control signal of feedback, control its plastic emitting or go out the output quantity of curing agent, effectively reduce and mix the fluctuation range that is prone in the glue ratio.6) utilize method of the present invention can also develop many components and mix the glue machine, Raw material pail that each component is provided with separately is set, regulates the devices such as flowmeter that constant-delivery pump and control raw material are carried according to the kind of compound with supporting one-level booster pump group, the secondary of Raw material pail, then plurality of raw materials is connected with mixed sebific duct by the output pipe of flowmeter separately, adopts the mixed glue mode of static state to mix glue.Its wide accommodation benefits this product up-gradation and applies.
Description of drawings
Fig. 1 mixes glue machine structural representation for two components of example 1 of the present invention
Fig. 2 mixes glue machine structural representation for two components of example 2 of the present invention
Fig. 3 is provided with schematic diagram for establishing the connection of structure and interface in example 2 controllers
Fig. 4 is the electrical schematic diagram of controller
Fig. 5 is the controller workflow diagram
The specific embodiment
Below by reaching accompanying drawing in conjunction with specific embodiments technical solution of the present invention is described in further detail.
Embodiment 1:
As shown in Figure 1, mixed glue machine of the present invention is provided with the collagen charging basket 17 of adorning glue, the curing agent Raw material pail 18 of dress curing agent;
Be connected with adjusting constant-delivery pump 3 inputs by a connecting line with collagen charging basket 17 bottom delivery outlets; On the top of regulating constant-delivery pump 3 frequency modulation motor 10 is housed; The output of regulating constant-delivery pump 3 is connected with sebific duct road flowmeter 5 inputs, and the output of pipeline flowmeter 5 is connected with the static first input end mouth that mixes sebific duct 8 by connected pipeline.
Be connected with adjusting constant-delivery pump 4 inputs by a connecting line at curing agent Raw material pail 18 bottom delivery outlets; On the top of regulating constant-delivery pump 4 frequency modulation motor 9 is housed; The output of regulating constant-delivery pump 4 is connected with sebific duct road flowmeter 6 inputs, and the output of pipeline flowmeter 6 is connected with static second input port that mixes sebific duct 8 by connected pipeline.
The length that used static state is mixed sebific duct 8 is 550-650mm, and diameter is 20-25mm; Static mixing in sebific duct 8 inner chambers is provided with a helical stir axle; In order to improve the static useful life longevity that mixes sebific duct, the helical stir axle adopts the stainless steel preparation.
One controller is arranged at (not shown) near the electrical control cabinet of this mixed glue machine; The input of 2 frequency modulation motors 10,9 is pegged graft with the 1st, 2 output interfaces of controller respectively, the output of 2 pipeline flowmeters 5,6 is connected with the data-interface of controller respectively, and pipeline flowmeter 5,6 sends actual in the glue amount of pipeline flowmeter or the real-time monitoring information of curing dose respectively to controller; The speed-regulating signal that the reception controller sends, what of glue amounts or conveying curing dose the rotating speed of control and adjustment frequency modulation motor 10,9, control and regulation constant-delivery pump 3,4 carry.
Used mixed glue machine is applicable to that gumminess and curing agent viscosity all are lower than under the condition of 12000CPS in this example; The closed loop control method that should mix the mixed glue of glue machine comprises the steps:
1) in controller PLC control chip, imports predetermined processing compound parameter by the operation keyboard that is arranged on the controller touch display screen; Comprise: the mixing ratio of glue and curing agent, the glue amount of output and the curing dose of output in the unit interval; Regulate the rotating speed of constant-delivery pump frequency modulation motor;
2) Raw material pail that will fill the Raw material pail of glue and fill curing agent is positioned over respectively on the specific station of described mixed glue machine, and the input of regulating constant- delivery pump 10,9 is joined by pipeline and corresponding Raw material pail bottom; Start and regulate constant-delivery pump 3,4, extract glue and the curing agent corresponding pipeline flowmeter that is connected 5 of flowing through respectively out, in 6, corresponding pipeline flowmeter 5,6 glue volumes that will flow through and the curing agent volume that flows through are given controller with pulse signal form sender respectively, controller contrasts the pulse signal of the pipeline flowmeter of reception in real time with the processing compound parameter of presetting, find deviation, its deviation signal is fed back to described frequency modulation motor 10,9, adjust this frequency modulation motor 10,9 rotating speed is controlled corresponding adjusting constant-delivery pump 3, the glue amount of 4 outputs and the speed and the proportioning of curing dose;
3) with step 2) in real time bias correction when and the glue that meets predetermined processing compound parameter are pressed under high pressure and speedup effect respectively in the static mixed sebific duct 8 simultaneously with curing agent, be arranged in that passive rotation forms turbulent flow under helical stir leaf that this static state mixes sebific duct 8 injects the glue of this pipe and curing agent at high pressure the promotion, glue and curing agent mix the back and mix sebific duct outlet outflow from static state under turbulent condition, and the container of packing into is standby.
Wherein, the metering of used pipeline flowmeter 5,6 output allows deviation, and its deviation must be lower than 0.5%; This deviation signal feeds back to before the frequency modulation motor 10,9, also is provided with deviation alarm device (not shown); The effect of deviation alarm is: when frequency modulation motor 10,9 can't be finished the rotating speed adjustment; be mixed proportion when exceeding allowable error, the PLC control chip sends alarm signal, makes the Y2 that is connected with the PLC control chip in the controller move alarm lamp and glimmers; the buzzer sounding alarm is shut down simultaneously.Being provided with of this deviation alarm can guarantee the correctness of the epoxy glue mixed proportion that flows out.
Above-mentioned steps 2) to select the model of German Hexion Chemical Manufacture for use be the epoxy resin of MGSBPR135G3 to used epoxide-resin glue in; Used curing agent is that the model of German Hexion Chemical Manufacture is the curing agent of MGSBPH137G.
Above-mentioned steps 3) used static mixing tube 8 in, its length and diameter directly have influence on the uniformity of mixing glue, and it is 550-650mm that the used static state of the present invention is mixed sebific duct 8 total lengths, and the best is 600mm; Caliber is 20-25mm, and the best is 25mm; Stir distance as if needing to prolong, the mixed sebific duct of above-mentioned static state length on demand fits together use by the mixed sebific duct 8 of the static state of many above-mentioned length.
Embodiment 2:
As shown in Figure 2: when used gumminess and used curing agent viscosity all are higher than 12000CPS; Be equipped with the booster pump group respectively between the collagen charging basket 17 of above-mentioned mixed glue machine and the adjusting constant-delivery pump 3 and between curing agent Raw material pail 18 and the adjusting constant-delivery pump 4.
The booster pump group is made of compression set, screw pump and screw pump drive motors.Wherein, be positioned at the top of screw pump with the screw pump drive motors 11 of collagen charging basket 17 supporting settings, the bottom of this screw pump is connected with attached platen respectively; Screw pump one end that attached platen is housed vertically inserts in the collagen charging basket 17, and compression set 1 is pneumatic linear actuator or hydraulic cylinder; Usually be provided with 2, the 2-4 platform can also be set as required, equal angles is distributed in the periphery of collagen charging basket 17; All fixedly connected with the upper end of screw pump in constrictor outer end in every compression set 1; The port of export of screw pump is connected with the input of regulating constant-delivery pump 3 by pipeline; Thereafter, it is identical with example 1 with the connected mode of static mixed sebific duct 8 to regulate constant-delivery pump 3, frequency modulation motor 10, pipeline flowmeter 5.
In like manner, be positioned at the top of screw pump with the screw pump drive motors 12 of curing agent Raw material pail 18 supporting settings, the bottom of this screw pump is connected with attached platen respectively; Screw pump one end that attached platen is housed vertically inserts in the curing agent Raw material pail 18, and compression set 2 can corresponding setting with the platform number of compression set 1, also can not corresponding setting, and same equal angles is distributed in the periphery of curing agent Raw material pail 18; All fixedly connected with the upper end of screw pump in constrictor outer end in every compression set 2; The port of export of screw pump is connected with the input of regulating constant-delivery pump 4 by pipeline; Thereafter, it is identical with example 1 with the connected mode of static mixed sebific duct 8 to regulate constant-delivery pump 4, frequency modulation motor 9, pipeline flowmeter 6.
As Fig. 2, Fig. 3, shown in Figure 4, utilize above-mentioned mixed glue machine to mix the closed loop control method of glue, comprise that step is as follows:
1) in controller PLC control chip, imports predetermined processing compound parameter by the operation keyboard that is arranged on the controller touch display screen; Comprise: the mixing ratio of glue and curing agent was made as 2: 1, the glue amount of output and the curing dose of output in the unit interval; The rotating speed of screw pump drive motors 11,12 and the rotating speed of regulating constant-delivery pump frequency modulation motor 10,9;
2) Raw material pail that will fill the Raw material pail of glue and fill curing agent is positioned over respectively on the specific station of described mixed glue machine, manually sets the operating pressure of compression set 1,2 in the corresponding booster pump group, starts compression set 1,2 and makes drawback movement; The screw pump that compression set 1,2 drives the booster pump group moves down with the attached platen that is connected with its bottom, and glue in the Raw material pail and curing agent are squeezed into the lower port of screw pump under the pressure effect of described compression set 1,2;
3) the screw pump drive motors 11,12 in the corresponding booster pump group of startup, drive screw pump rotary work is with step 2) be squeezed into the rotation by screw rod of the glue of screw pump lower port or curing agent and be delivered to corresponding secondary respectively and regulate in the constant-delivery pump 3,4;
4) regulate constant-delivery pump 3 through step 3), the glue or the curing agent of 4 outputs flow into corresponding pipeline flowmeter 5 respectively, in 6, corresponding pipeline flowmeter 5,6 glue volumes that will flow through and the curing agent volume that flows through are given the controller (not shown) with pulse signal form sender respectively, controller is with the pipeline flowmeter 5 that receives, 6 pulse signal contrasts in real time with the processing compound parameter of presetting, find deviation, its deviation signal is fed back to corresponding frequency modulation motor 10,9, adjust this frequency modulation motor 10,9 rotating speed is controlled corresponding secondary and is regulated constant-delivery pump 3, the glue amount of 4 outputs and the speed and the proportioning of curing dose; When frequency modulation motor 10,9 can't be finished the rotating speed adjustment, the PLC control chip sent the deviation alarm signal, made the flicker of Y2 action alarm lamp, and the buzzer sounding alarm is shut down simultaneously.The setting of deviation alarm can guarantee the correctness of the epoxy glue mixed proportion that flows out effectively.
Used pipeline flowmeter, the deviation that its metering output allows should be less than 0.5%.
5) the step 4) warp is in real time to when bias correction, the glue that meets predetermined processing compound parameter and curing agent are pressed into static mixing in the sebific duct 8 respectively simultaneously under high pressure and speedup effect, be arranged in this static state and mix the passive rotation of helical stir leaf of sebific duct 8, mix the glue and the curing agent that flow in the sebific duct 8 in static state and under the effect of the passive rotation of helical stir leaf, form turbulent flow, glue is mixed while flowing in mixing sebific duct with curing agent, mix the outflow of sebific duct gum outlet until mixing the back by static state, the container of packing into is standby.
In normal operation, frequency modulation motor 10,9 receives the signal of telecommunication that the PLC control chip sends, and by the speed rotation of setting, drives secondary and regulates constant-delivery pump 3,4 output glue and curing agent; Glue and curing agent flow through respectively sebific duct road flowmeter 5 and curing agent pipeline flowmeter 6 are pressed into static mixing in the sebific duct 8 by high pressure respectively and stir; Sebific duct road flowmeter 5 and curing agent pipeline flowmeter 6 pass through X0 respectively, the X1 interface is connected with the PLC control chip, carry the pipeline flowmeter 5 of glue regulating constant-delivery pump 3 by secondary with the pipeline flowmeter 6 of carrying curing agent, under the promotion of 4 glue of sending here and curing agent, automatically rotation and send the signal of telecommunication by the interior sensor of establishing, pipeline flowmeter 5,6 the signal of telecommunication and glue and curing agent flow through pipeline flowmeter 5,6 volume forms one-to-one relationship, the continuous data that is volume changes signal of telecommunication control data into, this signal of telecommunication is directly by electric wire input PLC control chip, compare through technological parameter with input in advance, deviation appears in the volume that discovery target proportional quantity and actual flow are crossed pipeline flowmeter, the PLC control chip will send the signal of telecommunication automatically by the requirement of designing program and give adjusting constant-delivery pump 3,4 frequency modulation motor 10,9, adjust and regulate constant-delivery pump 3,4 output speed, thereby realize regulating constant-delivery pump 3,4 export the change of volume in the unit interval, make and regulate constant-delivery pump 3, the actual plastic emitting in 4 unit interval or the volume of curing agent equate with the plastic emitting of design input requirement or the volume of curing agent.
The metering of used pipeline flowmeter 5,6 output allows deviation in the said method, and its deviation must be lower than 0.5%; This deviation signal feeds back to before the frequency modulation motor, also is provided with 1 deviation alarm device; Deviation alarm is meant: when described frequency modulation motor 10,9 can't be finished the rotating speed adjustment; be mixed proportion when exceeding allowable error, the PLC control chip sends alarm signal, makes the Y2 that is connected with the PLC control chip in the controller move alarm lamp and glimmers; the buzzer sounding alarm is shut down simultaneously.Being provided with of this deviation alarm can guarantee the correctness of the epoxy glue mixed proportion that flows out.
Used static mixing tube 8 in the said method, its length and diameter directly have influence on the uniformity of mixing glue, and it is 550-650mm that the used static state of the present invention is mixed sebific duct 8 total lengths, and the best is 600mm; Caliber is 20-25mm, and the best is 25mm; Stir distance as if needing to prolong, the mixed sebific duct 8 of above-mentioned static state length on demand fits together use by the mixed sebific duct of the static state of many above-mentioned length.
Above-mentioned steps 2) it is the epoxy resin of RIM135 that used epoxide-resin glue is selected the model of German Hexion Chemical Manufacture for use; Used curing agent is that the model that U.S. hank Man produces is the curing agent of RIM137.
As shown in Figure 3, Figure 4, mixed glue machine one side of the present invention is equipped with the electrical control cabinet (not shown) that is provided with power supply and switching device in, and controller 7 is installed in this electrical control cabinet.
Be provided with PLC control chip, data demonstration touch-screen 15, deviation alarm 16, online record data storage 14, power supply and gauge tap in the controller 7; Wherein, the PLC control chip is the core component of controller 7; Memory 14 can adopt the portable hard drive memory or use the USB flash disk memory, shows that with data the USB2.0 interface of touch-screen 15 is pegged graft, and is used for online record storage glue and curing agent mixing match data; Have touch keyboard on this data demonstration touch-screen 15; The input that shows touch-screen 15 in data is connected with the DC24V power supply, and its output is connected with the PLC control chip by the RS232 interface; It is the TwidoTWDLCAE40DRF chip that the PLC control chip is selected the model of U.S.'s import for use, be connected with online proportioning deviation alarm 16 with the data output interface Y2 of PLC control chip, this deviation alarm 16 is selected U.S.'s import for use, and model is the deviation alarm of LEL-FBW; The frequency modulation motor 10,9 that the screw pump drive motors 11,12 of one-level booster pump group, secondary are regulated constant-delivery pump be connected on the cable after frequency converter A 1, A2, B1, B2 are connected in series respectively, this cable passes through the RS485 interface and is connected with the PLC control chip.
Sebific duct road flowmeter 5 is connected with X0, the X1 interface of PLC control chip respectively with curing agent pipeline flowmeter 6; The input of screw pump drive motors 11,12 by M1, M3 and frequency modulation motor 10,9 are connected the contact of contactor KA1, KA2 respectively by the input of M2, M4, and this contactor KA1, KA2 are connected with Y0, the Y1 interface of PLC control chip; Screw pump drive motors 11,12 is connected in parallel on the RS485 of PLC control chip interface by M2, M4 output by M1, M3 output and frequency modulation motor 10,9; Deviation alarm is connected with the Y2 interface of PLC control chip; Three gauge tap SB1, SB2, SB3 are connected with X4, X5, the X6 interface of PLC control chip respectively.
U, V, W are three phase mains, and N is a zero line.
When pressing start button, KA1, the KA2 coil has electricity, corresponding normally opened contact KA1, when KA2 is closed, the electric motor starting that is attached thereto; Wherein, screw pump drive motors 11 and frequency modulation motor 10 that A motor representative is connected with the collagen charging basket, i.e. M1, M2; Screw pump drive motors 12 and frequency modulation motor 9 that B motor representative is connected with the curing agent Raw material pail, i.e. M3, M4; FU1: be fuse and the normal insurance of saying; The effect of scram button is protected system from hardware, presses scram button and can cut off all control circuits when accident, fault occurring, and protection equipment is safe in utilization.
Operation principle of the present invention is as follows:
When the viscosity of the viscosity of used glue and used curing agent all is higher than 12000CPS, adopt the mixed glue machine that is equipped with the booster pump group.
With reference to Fig. 2, Fig. 3, Fig. 4; The Raw material pail 17,18 of filling glue and curing agent is positioned over the fixedly station that mixes the glue machine respectively, manually set the operating pressure of compression set 1,2, compression set 1,2 is selected 2 pneumatic linear actuators respectively for use, start pneumatic linear actuator and make drawback movement, the constrictor of pneumatic linear actuator drives screw pump and attached platen, and glue in the Raw material pail 17,18 and curing agent are with the descending screw pump inlet that is expressed into of platen; Screw pump drive motors 11,12 drive screw rotary works, the screw rod rotation by separately is conveyed into secondary and regulates constant-delivery pump 3,4 respectively the glue that is squeezed into screw pump inlet and curing agent; Entering the glue of constant-delivery pump 3,4 and curing agent is pressed into to mix to static state with high pressure respectively through the pipeline flowmeter 5,6 of output separately respectively and carries out the mixed glue of static state in the sebific duct 8.
The bucket that is depressed into Raw material pail when screw pump is during the end, and raw material has made, and sky bucket is taken out, and changes collagen charging basket 17 and the curing agent Raw material pail 18 of filling raw material again, restarts the helicoidal pump drive motors, drives helicoidal pump and exports glue or curing agent raw material.Wherein, to select the model of Hexion Chemical Manufacture for use be the MGSBPR135G3 epoxide-resin glue to the used glue of this example; Used curing agent is that the model of Hexion Chemical Manufacture is the MGSBPH137G curing agent.
In mixing the other electrical control cabinet that is provided with of glue machine, controller 7 is housed.In this controller 7 the PLC control chip is housed, this PLC control chip is selected the TwidoTWDLCAE40DRF chip of U.S.'s import for use, deviation alarm is selected the LEL-FBW deviation alarm of U.S.'s import for use, the memory USB flash disk, by execution sequential and the output of desired data to systematic procedure, realize the calculating of conventional P LC by programming, control, functions such as storage and programming, finish the collection of field data and the output of signal by physical equipments such as I/O module and fieldbus, online record is finished in the follow procedure design, deviation alarm, mixed proportion can be by the interface modification adjustment of touch display screen, single mixes the quantity of glue continuously and revises functions such as adjustment.The PLC control chip shows that by the data of the used band keyboard of data-in port and this example touch-screen is connected; Flowmeter is selected the SRZ40 type flowmeter of KEM for use, and the pipeline flowmeter of metering glue passes through 4m respectively with the pipeline flowmeter of metering curing agent
2Cable be connected with data-interface X1, the X2 of PLC control chip; It is the frequency modulation motor of YVF2-90S-4 that used glue delivery pump frequency modulation motor 10 is selected model for use, and its rated voltage is 380V, and rated power is 1.1KW, nominal torque 7.0Nm, permanent torque frequency scope 5-50HZ, permanent power-frequency scope 50-100HZ; It is the frequency modulation motor of YVF2-80M2-4 that used curing agent delivery pump frequency modulation motor 9 is selected model for use, its rated voltage is 380V, rated power is 0.75KW, nominal torque 4.8Nm, permanent torque frequency scope 5-50HZ, permanent power-frequency scope 50-100HZ is connected with the interface of controller by cable separately; Used glue screw pump drive motors 11, its power is 2.2KW, rated voltage 380V; Used curing agent screw pump drive motors 12, its power is 1.5KW, rated voltage 380V; Be connected with the input interface of controller 7 by cable separately.
The concrete operations of controller 7 are:
1. device start, pressing and making the glue button is SB1, PLC reads this signal, sends instruction, thereby makes KA1, KA2 action make motor M 1, M2, M3, M4 turn round simultaneously, makes glue form pressure and delivers to static mixer and finish plastic emitting.
2. Proportional Feedback, solation sends pulse when crossing the SRZ40 type flowmeter of KEM, umber of pulse and flow are linear, the PLC control chip reads umber of pulse by built-in high-speed pulse reader, and analyze the volume proportion of two kinds of glue of comparison, compare with the processing compound parameter of establishing in the PLC control chip, program is adjusted the frequency of frequency modulation motor 10,9 automatically, thereby realizes the accurate control of the mixing match of glue and curing agent.
Wherein, the PLC control chip is selected the TwidoTWDLCAE40DRF chip of U.S.'s import for use.
3. deviation alarm is adjusted the output quantity proportioning by the frequency modulation motor 10 and the rotating speed of the frequency modulation motor 9 of curing agent component of adjusting the glue component, and in the time can't finishing adjustment, the PLC control chip sends alarm signal, makes the flicker of Y2 action alarm lamp, the buzzer sounding alarm.Shut down simultaneously.
4. ratio is set, and after the error range by data demonstration touch-screen 15 setting proportionings and proportioning permission, by the RS232 communication interface these data is sent to PLC memory 14, is used for the proportioning feedback and reports to the police.
5. gel quantity setting, after 15 settings of data demonstration touch-screen, start work, controller is monitored the gel quantity data by flowmeter, and contrasts in real time with setting gel quantity, when the actual monitoring gel quantity equates with setting gel quantity data, quits work automatically.
6. autostop presses the button SB2, and motor M 1, M2, M3, M44 platform motor shut down.
7. towards rifle, press SB3, towards the rifle action, PLC sends instruction KA1 action, thereby makes M1, M3 motor rotation; Go out epoxy glue in the blender.
As shown in Figure 5, the workflow of controller is: the operation sequence by the PLC software editing is installed in the host process chip of controller, imports predetermined mixed adhesive process proportioning parameter by the operated key on the data demonstration touch-screen in the controller main frame;
Step 1: beginning, connect power supply;
Step 2: setting glue amount and curing dose mixing ratio X0 is 2: 1, and total gel quantity Y0 is 50Kg;
Step 3: the actual mixture ratio X of glue amount that flows through by sebific duct road flowmeter and the curing dose that flows through by the curing agent pipeline flowmeter; Actual gel quantity Y-signal shows by corresponding pipeline flowmeter;
Step 4: when actual mixture ratio X with set identical, the actual gel quantity Y of mixing ratio X0 and set total gel quantity Y0 when identical, glue mixes with curing agent and meets the requirements, and finishes mixed adhesive process; Flow process finishes.
When X ≠ X0, the deviation that produces is fed back to secondary by the PLC control chip regulate in the frequency modulation motor 10,9 of constant-delivery pump, adjust the rotating speed of frequency modulation motor, the mixing ratio of control glue and curing agent;
Step 5: when actual mixture ratio X when setting mixing ratio X0, transfer the motor speed of big frequency modulation motor 10,9; Return step 2, repeating step three;
When actual mixture ratio X when setting mixing ratio X0, turn the motor speed of frequency modulation motor 10,9 down; Return step 2, repeating step three;
With the actual mixture ratio X of adjusted frequency modulation motor output and actual gel quantity Y with set mixing ratio X0 and set gel quantity Y0 and show that by the data on the controller 7 keyboard with touch screen imports the mixed once gel quantity, press the SB1 start button, mix the glue machine and promptly start working, and the proportion requirement of setting in follow procedure output epoxy glue; The pulse signal that pipeline flowmeter 5,6 sends when metering output volume, pipeline flowmeter 5,6 whenever turns around and exports fixing volume, simultaneously also send the pulse signal that pulse equivalency is 0.216p/cc, 0.216p/cc is meant that the glue amount of 1 cubic centimetre of every outflow just has 0.216 umber of pulse.This pulse number imports into by cable X0, X1 in the PLC control chip of controller, the one-to-one relationship of organizator product and umber of pulse; When deviation appearred in glue and curing agent mixed proportion, controller can send signal, regulated frequency modulation motor 10,9 rotating speeds, made the rotation of constant-delivery pump frequency modulation motor 10,9 follow procedure requirement rotating speeds play glue, designed ratio requirement to satisfy; The error allowed band of mixing the glue ratio is ± 0.5%.
Simultaneously, the constant-delivery pump frequency modulation motor 10,9 that is connected with controller RS485 interface sends the frequency data signal when rotated, and import in the controller in the PLC control chip by cable, through in encoder compiling back of establishing and the pulse signal that pipeline flowmeter 5,6 imports into contrast, data deviation is exported to constant-delivery pump frequency modulation motor 10,9 again, adjust its rotating speed and input quantity;
Start the static sebific duct that mixes and mix glue; The proportion relation that glue and curing agent are set by above-mentioned steps by its output port is separately exported the directly static sebific duct that mixes of input of back, helical stir axle in the static mixed sebific duct is after receiving the big high-pressure fluid of input, automatically rotation is stirred, make glue mix the back and flow out, prepare against when manufacturing a product in the container of packing into and use from gum outlet with the curing meter.
When the viscosity of the viscosity of used glue and used curing agent all is lower than 12000CPS, directly adopt two adjusting constant-delivery pumps to carry glue and curing agent respectively, the arrival end of regulating constant-delivery pump directly joins with the port of export of Raw material pail bottom setting.The model that used glue selects for use U.S. Hensel Man to produce is a RIM135 epoxy resin; Used curing agent is selected the model RIM137 curing agent of the graceful production of U.S.'s Hensel for use.
Adopt mixed glue machine of the present invention and above-mentioned mixed gluing method, not only can satisfy the fixedly production of mixed proportion glue, and when mixed proportion need be adjusted, only need to revise the proportioning numeral of adjusting glue and curing agent by the interface touch display screen, can satisfy the production needs; Continue to use this equipment, and if the quantity that needs of input mix glue, this mixed glue machine will continuously mix glue and autostop after finishing the mixed glue of setting quantity always.
Claims (10)
1. two components mix the glue machine, it comprise the collagen charging basket that glue is housed, the curing agent Raw material pail that curing agent is housed, with collagen charging basket and curing agent Raw material pail and the mixed sebific duct that connects and the electrical control cabinet of peripheral hardware; It is characterized in that: it also is provided with:
Regulate 2 of constant-delivery pumps, be provided with respect to described collagen charging basket and described curing agent Raw material pail respectively; The input of 2 adjusting constant-delivery pumps respectively by pipeline separately be connected with Raw material pail bottom delivery outlet that it is oppositely arranged, the output of 2 described adjusting constant-delivery pumps is connected with described mixed sebific duct input by the pipeline that is provided with pipeline flowmeter respectively; Frequency modulation motor all is equipped with on the top of every adjusting constant-delivery pump;
One controller is arranged in the described electrical control cabinet; 2 described frequency modulation motor outputs are connected to respectively on first input interface of described controller, receive the speed-regulating signal that described controller sends; 2 described pipeline flowmeters are connected with the data-interface of described controller respectively, send actual in the glue amount of pipeline flowmeter or the real-time monitoring information of curing dose to described controller.
2. pair component as claimed in claim 1 mixes the glue machine, it is characterized in that: be provided with the PLC control chip in the described controller; What be connected with PLC control chip interface data show touch-screen, deviation alarm, sebific duct road flowmeter, curing agent pipeline flowmeter, online data storage device, DC24V power end and gauge tap; Wherein, data show that the input of touch-screen is connected with the DC24V power end, and data show that the external tapping of touch-screen is plugged with data storage; Described sebific duct road flowmeter is connected with X0, the X1 interface of described PLC control chip respectively with described curing agent pipeline flowmeter; The input of described frequency modulation motor M2, M4 connects the contact of contactor KA1, KA2 respectively, and this contactor KA1, KA2 are connected with Y0, the Y1 interface of described PLC control chip; Described frequency modulation motor M2, M4 output are connected in parallel on the RS485 of described PLC control chip interface; Described deviation alarm is connected with the Y2 interface of described PLC control chip; Three gauge tap SB1, SB2, SB3 are connected with X4, X5, the X6 interface of PLC control chip respectively.
3. pair component as claimed in claim 1 mixes the glue machine, it is characterized in that: with respect to also being equipped with the booster pump group between described adjusting constant displacement pump and the described corresponding Raw material pail;
Described booster pump group includes compression set and screw pump; On the screw pump top screw pump drive motors is housed, its bottom is connected with an attached platen; Screw pump one end that attached platen is housed vertically inserts in the Raw material pail supporting with it; Described compression set is provided with 2 at least, is divided into its supporting Raw material pail periphery, and is connected with described screw pump upper end by the constrictor of establishing in this compression set; Described screw pump drive motors output is connected to respectively on second input interface of described controller.
4. pair component as claimed in claim 3 mixes the glue machine, and it is characterized in that: described compression set is provided with the 2-4 platform, and equal angles is located at described collagen charging basket periphery and described curing agent Raw material pail periphery respectively; Described compression set be in pneumatic linear actuator or the hydraulic cylinder any.
5. pair component as claimed in claim 4 mixes the glue machine, it is characterized in that: be provided with the PLC control chip in the described controller; What be connected with PLC control chip interface data show touch-screen, deviation alarm, sebific duct road flowmeter, curing agent pipeline flowmeter, online data storage device, DC24V power end and gauge tap; Wherein, data show that the input of touch-screen is connected with the DC24V power end, and data show that the external tapping of touch-screen is plugged with data storage; Described sebific duct road flowmeter is connected with X0, the X1 interface of described PLC control chip respectively with described curing agent pipeline flowmeter; The input of described screw pump drive motors M1, M3 and the input of described frequency modulation motor M2, M4 are connected the contact of contactor KA1, KA2 respectively, and this contactor KA1, KA2 are connected with Y0, the Y1 interface of described PLC control chip; Described screw pump drive motors M1, M3 output and described frequency modulation motor M2, M4 output are connected in parallel on the RS485 of described PLC control chip interface; Described deviation alarm is connected with the Y2 interface of described PLC control chip; Three gauge tap SB1, SB2, SB3 are connected with X4, X5, the X6 interface of PLC control chip respectively.
6. mix the glue machine as each described pair of component of claim 1-5, it is characterized in that: described mixed sebific duct is the static sebific duct that mixes, and the length that this static state is mixed sebific duct is 550-650mm, and diameter is 20-25mm; Mix the helical stir leaf that a mixing stirring usefulness is housed in the sebific duct inner chamber in described static state.
7. the closed loop control method of the mixed glue of the described mixed glue machine of claim 1 is characterized in that: comprise the steps:
1) in controller PLC control chip, imports predetermined processing compound parameter by the operation keyboard that is arranged on the controller touch display screen;
2) Raw material pail that will fill the Raw material pail of glue and fill curing agent is positioned over respectively on the specific station of described mixed glue machine, and the input of regulating constant-delivery pump is joined by pipeline and corresponding Raw material pail bottom; Start and regulate constant-delivery pump, extraction glue and curing agent are flowed through respectively in the corresponding pipeline flowmeter, glue volume that corresponding pipeline flowmeter will flow through and the curing agent volume that flows through are given controller with pulse signal form sender respectively, controller contrasts the pulse signal of the pipeline flowmeter of reception in real time with the processing compound parameter of presetting, find deviation, its deviation signal is fed back to described frequency modulation motor, adjust the rotating speed of this frequency modulation motor, control the glue amount of corresponding adjusting constant-delivery pump output and the speed and the proportioning of curing dose;
3) with step 2) in real time to bias correction when, and the glue and the curing agent that meet predetermined processing compound parameter are pressed into static mixing in the sebific duct respectively simultaneously under high pressure and speedup effect, be arranged in that passive rotation forms turbulent flow under helical stir leaf that this static state mixes sebific duct injects the glue of this pipe and curing agent at high pressure the promotion, glue and curing agent mix the back and mix sebific duct outlet outflow from static state under turbulent condition, and the container of packing into is standby.
8. closed loop control method according to claim 7 is characterized in that: step 2) described gumminess and described curing agent viscosity all be lower than 12000 centipoises; The deviate that the metering output of described pipeline flowmeter allows is lower than 0.5%.
9. the closed loop control method of the mixed glue of the described mixed glue machine of claim 3 is characterized in that: comprise the steps:
1) in controller PLC control chip, imports predetermined processing compound parameter by the operation keyboard that is arranged on the controller touch display screen;
2) Raw material pail that will fill the Raw material pail of glue and fill curing agent is positioned over respectively on the specific station of described mixed glue machine, manually sets the operating pressure of compression set in the corresponding booster pump group, starts compression set and makes drawback movement; The screw pump that compression set drives the booster pump group moves down with the attached platen that is connected with its bottom, and glue in the Raw material pail and curing agent are squeezed into the lower port of screw pump under the pressure effect of described compression set;
3) start screw pump drive motors in the corresponding booster pump group, drive screw pump rotary work is with step 2) be squeezed into the rotation by screw rod of the glue of screw pump lower port or curing agent and be delivered to corresponding secondary and regulate in the constant-delivery pump;
4) glue or the curing agent through the output of step 3) adjusting constant-delivery pump flows into respectively in the corresponding pipeline flowmeter, glue volume that corresponding pipeline flowmeter will flow through and the curing agent volume that flows through are given controller with pulse signal form sender respectively, controller contrasts the pulse signal of the pipeline flowmeter of reception in real time with the processing compound parameter of presetting, find deviation, its deviation signal is fed back to described frequency modulation motor, adjust the rotating speed of this frequency modulation motor, control corresponding secondary and regulate the glue amount of constant-delivery pump output and the speed and the proportioning of curing dose;
5) to bias correction when, and the glue that meets predetermined processing compound parameter is pressed under high pressure and speedup effect respectively in the static mixed sebific duct with curing agent step 4) simultaneously through in real time; Be arranged in that this static state is mixed under the promotion of the helical stir leaf of sebific duct injects this pipe at high pressure glue and curing agent and passive rotation forms turbulent flow, export outflow from the mixed sebific duct of static state after glue and curing agent mix under turbulent condition, the container of packing into is standby.
10. closed loop control method according to claim 9 is characterized in that: step 2) described gumminess and described curing agent viscosity all be higher than 12000 centipoises; The deviate that the metering output of the described pipeline flowmeter of step 4) allows is lower than 0.5%.
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| CN101693175B (en) | 2011-11-30 |
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