CN104550697A - Automatic charging device for adding auxiliary materials into pre-coated sand mixing machine - Google Patents
Automatic charging device for adding auxiliary materials into pre-coated sand mixing machine Download PDFInfo
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- CN104550697A CN104550697A CN201510009207.XA CN201510009207A CN104550697A CN 104550697 A CN104550697 A CN 104550697A CN 201510009207 A CN201510009207 A CN 201510009207A CN 104550697 A CN104550697 A CN 104550697A
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- valve
- pneumatic pinch
- communicates
- directional control
- solenoid directional
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- 239000004576 sand Substances 0.000 title claims abstract description 57
- 239000000463 material Substances 0.000 title claims abstract description 55
- 239000005011 phenolic resin Substances 0.000 claims abstract description 46
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 46
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 42
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000007822 coupling agent Substances 0.000 claims abstract description 24
- 150000002148 esters Chemical class 0.000 claims abstract description 24
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 21
- 239000008116 calcium stearate Substances 0.000 claims abstract description 21
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 21
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 24
- 229960004011 methenamine Drugs 0.000 claims description 24
- 238000005303 weighing Methods 0.000 claims description 23
- 238000007599 discharging Methods 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 9
- 239000004615 ingredient Substances 0.000 claims description 4
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 60
- 239000006004 Quartz sand Substances 0.000 abstract description 15
- 238000000465 moulding Methods 0.000 abstract description 8
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 description 29
- 238000003756 stirring Methods 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005304 joining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001951 dura mater Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Accessories For Mixers (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses an automatic charging device for adding auxiliary materials into a pre-coated sand mixing machine. According to the automatic charging device, a phenolic resin 382#, a high-strength phenolic resin, iron oxide red, calcium stearate, dibutyl ester, urotropine, a coupling agent and other pre-coated sand auxiliary materials can be timely and quantitatively added into the pre-coated sand mixing machine according to the constant sequence under automatic control of a programmable logic controller PLC, so that various auxiliary materials and the heated quartz sand are fully stirred. Therefore, the various auxiliary materials and the heated and softened resins are uniformly coated on the surface of each quartz sand grain, film-coated quartz sand is formed by curing under the action of the curing agent, urotropine, and the pre-coated sand for molding is obtained. According to the device disclosed by the invention, the adding time, dose and sequence of the various auxiliary materials in each batch can be kept consistent under the automatic control of the PLC so as to prepare the same high-quality pre-coated sand for molding. The phenomenon that the quality of the pre-coated sand is influenced due to instability of the manual operation is avoided. According to the method for producing the pre-coated sand, both labor and time are saved.
Description
Technical field
The present invention relates to a kind of automatic feeding device, particularly a kind of automatic feeding device adding auxiliary material in coated sand mixer.
Background technology
A large amount of use precoated sand moulding in casting field.Precoated sand is mainly at the coated one deck phenolic resins of quartz sand sand grains appearance, and the characteristic of phenolic resins has irreversible heat cure.Phenolic resins will soften when being heated to uniform temperature, but will solidify when being heated to higher temperature again.So precoated sand production line is exactly quartz sand is heated in advance the temperature that can make the softening and unlikely solidification of phenolic resins, then in puddle mixer, limit is stirred, while add iron oxide red, phenolic resins 382#, high-strength phenolic resin, dibutyl ester, coupling agent, methenamine and calcium stearate 7 kinds of auxiliary materials by certain quantity, time, interval, order.Through fully stirring, can evenly be coated on each sand grain surface after making phenolic resins softened by the temperature of quartz sand, then being subject to the effect of methenamine solidification, form dura mater at sand grain surface and just become precoated sand finished product after mutual adhesion.
Add in puddle mixer 7 kinds of auxiliary materials be have certain strict part by weight and order, this is related to the quality of precoated sand.General is all that manual weighing joins in puddle mixer in proportion more one by one.In whole batch production, artificial grasp all lean on to the part by weight added and the time added, interval, order, is difficult to the homogeneity and the stability that ensure puddle mixer, thus also just the unstability of formation precoated sand each batch of quality and not homogeny.Manual weighing adds the not only time-consuming quality of taking a lot of work but also being difficult to ensure each batch of card.
Summary of the invention
The object of this invention is to provide a kind of automatic feeding device adding auxiliary material in coated sand mixer.This automatic feeding device can to the precoated sand auxiliary materials such as phenolic resins 382#, high-strength phenolic resin, iron oxide red, calcium stearate, dibutyl ester, methenamine, coupling agent carry out timing, quantitatively, definite sequence join in coated sand mixer, quartz sand after making various auxiliary material and being heated fully stirs, each auxiliary material is made evenly to be coated on every quartz sand surface with the resin by thermal softening, under the effect of urotropine firming agent, solidify to form the quartz sand of bag film again, namely become moulding precoated sand.This automatic feeding device makes the joining day of various auxiliary material in each batch, add dosage, addition sequence etc. is all consistent and produces identical high-quality moulding precoated sand under the automatic control of programmable controller PLC.No longer because affecting the quality of precoated sand by manually-operated unstability.Not only saving of labor but also save time when this method produces precoated sand.
Technical scheme of the present invention is, adds the automatic feeding device of auxiliary material in coated sand mixer.
Phenolic resins 382# loading hopper 1-1 is connected with slide valve 4-1 and communicates, slide valve 4-1 is connected with the piston rod of cylinder 7-1, the gas circuit of cylinder 7-1 is connected with solenoid directional control valve 8-1, and solenoid directional control valve 8-1 controls the Kai Heguan of slide valve 4-1 by two electromagnet DT18.Slide valve 4-1 bottom is also connected with pneumatic pinch valve 5-1 and communicates, and the gas circuit of pneumatic pinch valve 5-1 is connected with solenoid directional control valve 8-3 and communicates, and solenoid directional control valve 8-3 indicates pneumatic pinch valve 5-1 to feed in raw material by its electromagnet DT6.Pneumatic pinch valve 5-1 bottom is also connected with video disc valve 6-1 and communicates, and video disc valve 6-1 is connected with the piston rod of cylinder 7-5, and the gas circuit of cylinder 7-5 is connected with magnetic valve 8-2 and communicates, and it is meticulous reinforced that solenoid directional control valve 8-2 controls video disc valve 6-1 by its electromagnet DT4.Video disc valve 6-1 bottom to be connected with resin quantitative bucket 2-1 by charge pipe 11-1 and to communicate.
High-strength phenolic resin loading hopper 1-2 is connected with slide valve 4-2 and communicates, slide valve 4-2 is connected with the piston rod of cylinder 7-2, the gas circuit of cylinder 7-2 is connected with solenoid directional control valve 8-4 and communicates, and solenoid directional control valve 8-4 controls the Kai Heguan of slide valve 4-2 by two electromagnet DT20.Slide valve 4-2 bottom is also connected with pneumatic pinch valve 5-2 and communicates, and the gas circuit of pneumatic pinch valve 5-2 is connected with solenoid directional control valve 8-5 and communicates, and solenoid directional control valve 8-5 indicates pneumatic pinch valve 5-2 to feed in raw material by its electromagnet DT7.Pneumatic pinch valve 5-2 bottom is connected with video disc valve 6-2 and communicates, and video disc valve 6-2 is connected with the piston rod of cylinder 7-6, and the gas circuit of cylinder 7-6 is connected with magnetic valve 8-6 and communicates, and it is meticulous reinforced that solenoid directional control valve 8-6 controls video disc valve 6-2 by its electromagnet DT5.Video disc valve 6-2 bottom to be connected with resin quantitative bucket 2-1 by charge pipe 11-2 and to communicate.High-strength phenolic resin loading hopper 1-2 is arranged on upper platform.Because every batch of precoated sand only uses a kind of phenolic resins, so two kinds of resins share a phenolic resins loading hopper 1-2.
Below phenolic resins measure hopper 2-1, LOAD CELLS 3-1 is housed, LOAD CELLS 3-1 determines the addition of phenolic resins 382# and high-strength phenolic resin respectively by the Weighing module Q8-AD1 of programmable controller PLC.Phenolic resins measure hopper 2-1 bottom is connected with pneumatic pinch valve 5-5 and communicates, the gas circuit of pneumatic pinch valve 5-5 is connected with solenoid directional control valve 8-12 and communicates, pneumatic pinch valve 5-5 to be connected with overlay film puddle mixer 13 by charge pipe 12-1 and to communicate, and solenoid directional control valve 8-12 controls pneumatic pinch valve 5-5 by its electromagnet DT8 and add phenolic resins 382# or high-strength phenolic resin in overlay film puddle mixer 13.
Powdery iron oxide red loading hopper 1-3 bottom is provided with slide valve 4-3, and slide valve 4-3 is connected with the 7-3 piston rod of cylinder.The gas circuit of cylinder 7-3 is connected with solenoid directional control valve 8-7 and communicates, and solenoid directional control valve 8-7 controls the Kai Heguan of slide valve 4-3 by two electromagnet DT19.Slide valve 4-3 bottom is connected with pneumatic pinch valve 5-3 and communicates.The gas circuit of pneumatic pinch valve 5-3 is connected with solenoid directional control valve 8-8 and communicates, and solenoid directional control valve 8-8 indicates pneumatic pinch valve 5-3 to feed in raw material by its electromagnet DT22.Pneumatic pinch valve 5-3 bottom to be connected with iron oxide red measure hopper 2-2 by charge pipe 11-3 and to communicate.Below iron oxide red measure hopper 2-2, LOAD CELLS 3-2 is housed, LOAD CELLS 3-2 determines the addition of powdery iron oxide red by the Weighing module Q8-AD2 of programmable controller PLC.Iron oxide red measure hopper 2-2 bottom is connected with pneumatic pinch valve 5-6 and communicates.The gas circuit of pneumatic pinch valve 5-6 is connected with solenoid directional control valve 8-13 and communicates, and solenoid directional control valve 8-13 indicates pneumatic pinch valve 5-6 discharging by its electromagnet DT10.Pneumatic pinch valve 5-6 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-2 and to communicate.
Calcium stearate loading hopper 1-4 is equipped with vibrator 16 in middle and lower part, and vibrator 16 is connected with solenoid directional control valve 8-11, and solenoid directional control valve 8-11 indicates vibrator 16 to vibrate by its electromagnet DT21-2.Loading hopper 1-4 bottom is provided with slide valve 4-4.Slide valve 4-4 is connected with the piston rod of cylinder 7-4.The gas circuit of cylinder 7-4 is connected with solenoid directional control valve 8-9 and communicates, and solenoid directional control valve 8-9 controls the Kai Heguan of slide valve 4-3 by two electromagnet DT21.Slide valve 4-4 bottom is connected with pneumatic pinch valve 5-4 and communicates.The gas circuit of pneumatic pinch valve 5-4 is connected with solenoid directional control valve 8-10 and communicates, and solenoid directional control valve 8-10 indicates pneumatic pinch valve 5-4 discharging by its electromagnet DT23.Pneumatic pinch valve 5-4 bottom to be connected with calcium stearate measure hopper 2-3 by charge pipe 11-4 and to communicate.Below calcium stearate measure hopper 2-3, LOAD CELLS 3-3 is housed, LOAD CELLS 3-3 determines the addition of calcium stearate by the Weighing module Q8-AD3 of programmable controller PLC.Calcium stearate measure hopper 2-3 bottom is connected with pneumatic pinch valve 5-7 and communicates.The gas circuit of pneumatic pinch valve 5-7 is connected with solenoid directional control valve 8-14 and communicates, and solenoid directional control valve 8-14 indicates pneumatic pinch valve 5-7 discharging by its electromagnet DT9.Pneumatic pinch valve 5-7 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-3 and to communicate.
Dibutyl ester loading hopper 1-5 bottom is connected with diaphragm valve 10-1 and communicates, and diaphragm valve 10-1 is fed in raw material by electromagnet DT14 indicating film plate valve 10-1.Diaphragm valve 10-1 is connected with measuring pump 9-1, and measuring pump 9-1 is to the dibutyl ester metering added.Measuring pump 9-1 to be connected with dibutyl ester measure hopper 2-4 by charge pipe 11-5 and to communicate.Below dibutyl ester measure hopper 2-4, LOAD CELLS 3-4 is housed, LOAD CELLS 3-4 determines the addition of dibutyl ester by the Weighing module Q8-AD4 of programmable controller PLC.Dibutyl ester measure hopper 2-4 bottom is connected with pneumatic pinch valve 5-8 and communicates.The gas circuit of pneumatic pinch valve 5-8 is connected with solenoid directional control valve 8-15 and communicates, and solenoid directional control valve 8-15 indicates pneumatic pinch valve 5-15 discharging by its electromagnet DT13.Pneumatic pinch valve 5-8 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-4 and to communicate.
Methenamine loading hopper 1-6 bottom is connected with diaphragm valve 10-2 and communicates, and diaphragm valve 10-2 is fed in raw material by electromagnet DT12 indicating film plate valve 10-2.Diaphragm valve 10-2 is connected with measuring pump 9-2, and measuring pump 9-2 is to the methenamine metering added.Measuring pump 9-2 to be connected with methenamine measure hopper 2-5 by charge pipe 11-6 and to communicate.Below methenamine measure hopper 2-5, LOAD CELLS 3-5 is housed, LOAD CELLS 3-5 determines the addition of methenamine by the Weighing module Q8-AD5 of programmable controller PLC.Methenamine measure hopper 2-5 bottom is connected with pneumatic pinch valve 5-9 and communicates.The gas circuit of pneumatic pinch valve 5-9 is connected with solenoid directional control valve 8-16 and communicates, and solenoid directional control valve 8-16 indicates pneumatic pinch valve 5-9 discharging by its electromagnet DT11.Pneumatic pinch valve 5-9 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-5 and to communicate.
Coupling agent loading hopper 1-7 bottom is connected with diaphragm valve 10-3 and communicates, and diaphragm valve 10-3 is fed in raw material by electromagnet DT16 indicating film plate valve 10-3.Diaphragm valve 10-3 is connected with measuring pump 9-3, and measuring pump 9-3 is to the coupling agent metering added.Measuring pump 9-3 to be connected with coupling agent measure hopper 2-6 by charge pipe 11-7 and to communicate.Below coupling agent measure hopper 2-6, LOAD CELLS 3-6 is housed, LOAD CELLS 3-6 determines the addition of coupling agent by the Weighing module Q8-AD6 of programmable controller PLC.Coupling agent measure hopper 2-6 bottom is connected with pneumatic pinch valve 5-10 and communicates.The gas circuit of pneumatic pinch valve 5-10 is connected with solenoid directional control valve 8-17 and communicates, and solenoid directional control valve 8-17 indicates pneumatic pinch valve 5-10 discharging by its electromagnet DT15.Pneumatic pinch valve 5-10 to be connected with overlay film puddle mixer 13 by discharge nozzle 12-6 and to communicate.
Major ingredient charge door 14 is arranged at overlay film puddle mixer 13 top.Overlay film puddle mixer 13 bottom has precoated sand to export 15.
Described LOAD CELLS selects the LOAD CELLS of HSX model.
Described pneumatic pinch valve selects VMPO25 pneumatic pinch valve device.
Described measuring pump selects U.S.'s rice to pause sieve PO26-358TI measuring pump.
Described electromagnet selects two-position four way change valve electromagnet.
Electric loop structure of the present invention is:
In the 24V DC power supply circuit of programmable controller PLC:
Its 24V dc source is connected with programmable controller PLC through manual selection switch K1, automatic selector switch K2, automatic start switch K3, automatic stop switch K4, control flow HMI and the auxiliary material main frame Q8-MODBVS that weighs respectively.
The auxiliary material of its programmable controller PLC is weighed from machine Q8-AD1, Q8-AD2, Q8-AD3, Q8-AD4, Q8-AD5 and the Q8-AD6 main frame Q8-MODBVS that all weighs with auxiliary material and is connected, and the auxiliary material main frame Q8-MOSBVS that weighs is connected with plc communication module by cable.27 output signals Y21, Y22, Y26, Y27, Y30, Y31, Y32, Y33, Y34, Y35, Y36, Y40, Y41, Y42, Y43, Y44, Y45, Y46, Y52, Y53, Y54, Y55, Y56, Y57, Y60, Y61, Y63 of programmable controller PLC are connected with 27 relay coil R of corresponding numbering respectively.
In the 220V ac power supply circuit of programmable controller PLC:
In 220V alternating current first loop, above-mentioned 27 relay coil R control the normally open contact J of 27 relay coil R of corresponding numbering respectively.Concrete control circuit is: normally open contact J44, J45, J46 of relay coil R44, R45, R46 are connected respectively by the coil of contactor C21, C22, C23, and the coil of contactor C21, C22, C23 is connected with measuring pump M17, M18, M19 respectively by normally open contact C21, C22, C23 of its contactor C21, C22, C23 coil.Normally open contact J21, J22 of relay coil R21, R22 are connected with electromagnet DT22, DT23 respectively.220V alternating current two ends are also connected in parallel to 24V direct current.
In the second servo loop of 220V alternating current, relay coil R26, R27, R30, R31, R32, R33, R34, R35, R36, R43, R40, R41, R42, R52, R53, R54, R55, R56, R57, R60, R61, the normally open contact J26 of R63, J27, J30, J31, J32, J33, J34, J35, J36, J43, J40, J41, J42, J52, J53, J54, J55, J56, J57, J60, J61, J63 respectively with electromagnet DT4, DT5, DT6, DT7, DT8, DT9, DT10, DT11, DT12, DT13, DT14, DT15, DT16, DT17, DT18, DT18-1, DT19, DT19-1, DT20, DT20-1, DT21, DT21-1, DT21-2 is connected.
Described programmable controller PLC selects the FX3U-32MES-A Programmable Logic Controller of MIT.
Described communication module selects the FX3U-485ADP-MB communication module of MIT.
Described control flow HMI selects the touch control flow of TK6070Ih10.
Described auxiliary material choice of main machine Q8-MODBUS auxiliary material of weighing is weighed main frame.
The course of work of the present invention and principle are: adopt the composition auxiliary material auto feed electric loops such as Programmable Logic Controller, communication module, Weighing module, LOAD CELLS, multi-functional control screen; The formed shape different according to each precoated sand auxiliary material adopts the composition auxiliary material auto feed pneumatic circuits such as slide valve, video disc valve, cylinder and pinched valve, diaphragm valve, measuring pump, solenoid directional control valve; Under the control of the electric loops such as Programmable Logic Controller, the precoated sand auxiliary materials such as resin, calcium stearate, iron oxide red, dibutyl ester, methenamine, coupling agent are carried out quantitatively, regularly, definite sequence join in coated sand mixer, fully stir with the quartz sand after being heated in advance, make each auxiliary material and be evenly coated on every quartz sand surface by the resin of thermal softening, again quartz sand is heated and curing agent is solidified thus forms film bag quartz sand structure, namely become moulding precoated sand.
Advantage of the present invention there is provided a kind of automatic feeding device adding auxiliary material in coated sand mixer.This automatic feeding device can to the precoated sand auxiliary materials such as phenolic resins 382#, high-strength phenolic resin, iron oxide red, calcium stearate, dibutyl ester, methenamine, coupling agent carry out timing, quantitatively, definite sequence join in coated sand mixer, quartz sand after making various auxiliary material and being heated fully stirs, each auxiliary material is made evenly to be coated on every quartz sand surface with the resin by thermal softening, under the effect of urotropine firming agent, solidify to form the quartz sand of bag film again, namely become moulding precoated sand.This automatic feeding device makes the joining day of various auxiliary material in each batch, add dosage, addition sequence etc. is all consistent and produces identical high-quality moulding precoated sand under the automatic control of programmable controller PLC.No longer because affecting the quality of precoated sand by manually-operated unstability.Not only saving of labor but also save time when this method produces precoated sand.
Accompanying drawing explanation
Fig. 1 is the structural representation of automatic feeding device of the present invention.
Fig. 2 is the structural representation of phenolic resins feeding device of the present invention.
Fig. 3 is the structural representation of iron oxide red feeding device of the present invention.
Fig. 4 is the structural representation of calcium stearate feeding device of the present invention.
Fig. 5 is the structural representation of dibutyl ester feeding device of the present invention.
Fig. 6 is the structural representation of methenamine feeding device of the present invention.
Fig. 7 is the structural representation of coupling agent feeding device of the present invention.
Fig. 8 is electric loop structural principle schematic diagram of the present invention.
In accompanying drawing: 1-1 ~ 1-7 is respectively 7 auxiliary material loading hoppers.2-1 ~ 2-6 is respectively 6 auxiliary material measure hoppers.3-1 ~ 3-6 is respectively 6 LOAD CELLSs.4-1 ~ 4-4 is respectively 4 slide valves.5-1 ~ 5-10 is respectively 10 pneumatic pinch valve.6-1 ~ 6-2 is respectively 2 video disc valves.7-1 ~ 7-6 is respectively 6 cylinders.8-1 ~ 8-17 is respectively 17 solenoid directional control valves.9-1 ~ 9-3 is respectively 3 measuring pumps.10-1 ~ 10-3 is respectively 3 air-operated diaphragm valves.11-1 ~ 11-7 is respectively 7 charge pipes.12-1 ~ 12-6 is respectively 6 discharge nozzles.13 is overlay film puddle mixer.14 is major ingredient charge door.15 is precoated sand outlet.16 is vibrator.
In accompanying drawing, electrical equipment is numbered:
PLC is Programmable Logic Controller.T is communication module.HMI is touch control flow.Q8 is that weigh main frame and auxiliary material of auxiliary material is weighed from machine.HSX is LOAD CELLS.R is output relay coil.J is output relay normally open contact.C is contactor.M is measuring pump.DT is two-position four way change valve electromagnet.
Detailed description of the invention
Be described as follows below in conjunction with the structure adding the automatic feeding device of auxiliary material in accompanying drawing subtend coated sand mixer:
In fig. 1 and 2: phenolic resins 382# loading hopper 1-1 is connected with slide valve 4-1 and communicates, slide valve 4-1 is connected with the piston rod of cylinder 7-1, the gas circuit of cylinder 7-1 is connected with solenoid directional control valve 8-1, and solenoid directional control valve 8-1 controls the Kai Heguan of slide valve 4-1 by two electromagnet DT18.Slide valve 4-1 bottom is also connected with pneumatic pinch valve 5-1 and communicates, and the gas circuit of pneumatic pinch valve 5-1 is connected with solenoid directional control valve 8-3 and communicates, and solenoid directional control valve 8-3 indicates pneumatic pinch valve 5-1 to feed in raw material by its electromagnet DT6.Pneumatic pinch valve 5-1 bottom is also connected with video disc valve 6-1 and communicates, and video disc valve 6-1 is connected with the piston rod of cylinder 7-5, and the gas circuit of cylinder 7-5 is connected with magnetic valve 8-2 and communicates, and it is meticulous reinforced that solenoid directional control valve 8-2 controls video disc valve 6-1 by its electromagnet DT4.Video disc valve 6-1 bottom to be connected with resin quantitative bucket 2-1 by charge pipe 11-1 and to communicate.
In fig. 1 and 2: overlay film puddle mixer 13 bottom has precoated sand to export 15.High-strength phenolic resin loading hopper 1-2 is connected with slide valve 4-2 and communicates, slide valve 4-2 is connected with the piston rod of cylinder 7-2, the gas circuit of cylinder 7-2 is connected with solenoid directional control valve 8-4 and communicates, and solenoid directional control valve 8-4 controls the Kai Heguan of slide valve 4-2 by two electromagnet DT20.Slide valve 4-2 bottom is also connected with pneumatic pinch valve 5-2 and communicates, and the gas circuit of pneumatic pinch valve 5-2 is connected with solenoid directional control valve 8-5 and communicates, and solenoid directional control valve 8-5 indicates pneumatic pinch valve 5-2 to feed in raw material by its electromagnet DT7.Pneumatic pinch valve 5-2 bottom is connected with video disc valve 6-2 and communicates, and video disc valve 6-2 is connected with the piston rod of cylinder 7-6, and the gas circuit of cylinder 7-6 is connected with magnetic valve 8-6 and communicates, and it is meticulous reinforced that solenoid directional control valve 8-6 controls video disc valve 6-2 by its electromagnet DT5.Video disc valve 6-2 bottom to be connected with resin quantitative bucket 2-1 by charge pipe 11-2 and to communicate.Because every batch of precoated sand only uses a kind of phenolic resins, so two kinds of resins share a phenolic resins loading hopper 1-2.
In fig. 1 and 2: below phenolic resins measure hopper 2-1, LOAD CELLS 3-1 is housed, LOAD CELLS 3-1 determines the addition of phenolic resins 382# and high-strength phenolic resin respectively by the Weighing module Q8-AD1 of Programmable Logic Controller.Phenolic resins measure hopper 2-1 bottom is connected with pneumatic pinch valve 5-5 and communicates, the gas circuit of pneumatic pinch valve 5-5 is connected with solenoid directional control valve 8-12 and communicates, pneumatic pinch valve 5-5 to be connected with overlay film puddle mixer 13 by charge pipe 12-1 and to communicate, and solenoid directional control valve 8-12 controls pneumatic pinch valve 5-5 by its electromagnet DT8 and add phenolic resins 382# or high-strength phenolic resin in overlay film puddle mixer 13.
In Fig. 1 and Fig. 3: powdery iron oxide red loading hopper 1-3 bottom is provided with slide valve 4-3, and slide valve 4-3 is connected with the 7-3 piston rod of cylinder.The gas circuit of cylinder 7-3 is connected with solenoid directional control valve 8-7 and communicates, and solenoid directional control valve 8-7 controls the Kai Heguan of slide valve 4-3 by two electromagnet DT19.Slide valve 4-3 bottom is connected with pneumatic pinch valve 5-3 and communicates.The gas circuit of pneumatic pinch valve 5-3 is connected with solenoid directional control valve 8-8 and communicates, and solenoid directional control valve 8-8 indicates pneumatic pinch valve 5-3 to feed in raw material by its electromagnet DT22.Pneumatic pinch valve 5-3 bottom to be connected with iron oxide red measure hopper 2-2 by charge pipe 11-3 and to communicate.Below iron oxide red measure hopper 2-2, LOAD CELLS 3-2 is housed, LOAD CELLS 3-2 determines the addition of powdery iron oxide red by the Weighing module Q8-AD2 of Programmable Logic Controller.Iron oxide red measure hopper 2-2 bottom is connected with pneumatic pinch valve 5-6 and communicates.The gas circuit of pneumatic pinch valve 5-6 is connected with solenoid directional control valve 8-13 and communicates, and solenoid directional control valve 8-13 indicates pneumatic pinch valve 5-6 discharging by its electromagnet DT10.Pneumatic pinch valve 5-6 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-2 and to communicate.
In Fig. 1 and Fig. 4: calcium stearate loading hopper 1-4 is equipped with vibrator 16 in middle and lower part, and vibrator 16 is connected with solenoid directional control valve 8-11, solenoid directional control valve 8-11 indicates vibrator 16 to vibrate by its electromagnet DT21-2.Loading hopper 1-4 bottom is provided with slide valve 4-4.Slide valve 4-4 is connected with the piston rod of cylinder 7-4.The gas circuit of cylinder 7-4 is connected with solenoid directional control valve 8-9 and communicates, and solenoid directional control valve 8-9 controls the Kai Heguan of slide valve 4-3 by two electromagnet DT21.Slide valve 4-4 bottom is connected with pneumatic pinch valve 5-4 and communicates.The gas circuit of pneumatic pinch valve 5-4 is connected with solenoid directional control valve 8-10 and communicates, and solenoid directional control valve 8-10 indicates pneumatic pinch valve 5-4 discharging by its electromagnet DT23.Pneumatic pinch valve 5-4 bottom to be connected with calcium stearate measure hopper 2-3 by charge pipe 11-4 and to communicate.Below calcium stearate measure hopper 2-3, LOAD CELLS 3-3 is housed, LOAD CELLS 3-3 determines the addition of calcium stearate by the Weighing module Q8-AD3 of Programmable Logic Controller.Calcium stearate measure hopper 2-3 bottom is connected with pneumatic pinch valve 5-7 and communicates.The gas circuit of pneumatic pinch valve 5-7 is connected with solenoid directional control valve 8-14 and communicates, and solenoid directional control valve 8-14 indicates pneumatic pinch valve 5-7 discharging by its electromagnet DT9.Pneumatic pinch valve 5-7 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-3 and to communicate.
In Fig. 1 with Fig. 5: dibutyl ester loading hopper 1-5 bottom is connected with diaphragm valve 10-1 and communicates, diaphragm valve 10-1 is fed in raw material by electromagnet DT14 indicating film plate valve 10-1.Diaphragm valve 10-1 is connected with measuring pump 9-1, and measuring pump 9-1 is to the dibutyl ester metering added.Measuring pump 9-1 to be connected with dibutyl ester measure hopper 2-4 by charge pipe 11-5 and to communicate.Below dibutyl ester measure hopper 2-4, LOAD CELLS 3-4 is housed, LOAD CELLS 3-4 determines the addition of dibutyl ester by the Weighing module Q8-AD4 of Programmable Logic Controller.Dibutyl ester measure hopper 2-4 bottom is connected with pneumatic pinch valve 5-8 and communicates.The gas circuit of pneumatic pinch valve 5-8 is connected with solenoid directional control valve 8-15 and communicates, and solenoid directional control valve 8-15 indicates pneumatic pinch valve 5-15 discharging by its electromagnet DT13.Pneumatic pinch valve 5-8 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-4 and to communicate.
In Fig. 1 with Fig. 6: methenamine loading hopper 1-6 bottom is connected with diaphragm valve 10-2 and communicates, diaphragm valve 10-2 is fed in raw material by electromagnet DT12 indicating film plate valve 10-2.Diaphragm valve 10-2 is connected with measuring pump 9-2, and measuring pump 9-2 is to the methenamine metering added.Measuring pump 9-2 to be connected with methenamine measure hopper 2-5 by charge pipe 11-6 and to communicate.Below methenamine measure hopper 2-5, LOAD CELLS 3-5 is housed, LOAD CELLS 3-5 determines the addition of methenamine by the Weighing module Q8-AD5 of Programmable Logic Controller.Methenamine measure hopper 2-5 bottom is connected with pneumatic pinch valve 5-9 and communicates.The gas circuit of pneumatic pinch valve 5-9 is connected with solenoid directional control valve 8-16 and communicates, and solenoid directional control valve 8-16 indicates pneumatic pinch valve 5-9 discharging by its electromagnet DT11.Pneumatic pinch valve 5-9 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-5 and to communicate.
In Fig. 1 with Fig. 7: coupling agent loading hopper 1-7 bottom is connected with diaphragm valve 10-3 and communicates, diaphragm valve 10-3 is fed in raw material by electromagnet DT16 indicating film plate valve 10-3.Diaphragm valve 10-3 is connected with measuring pump 9-3, and measuring pump 9-3 is to the coupling agent metering added.Measuring pump 9-3 to be connected with coupling agent measure hopper 2-6 by charge pipe 11-7 and to communicate.Below coupling agent measure hopper 2-6, LOAD CELLS 3-6 is housed, LOAD CELLS 3-6 determines the addition of coupling agent by the Weighing module Q8-AD6 of Programmable Logic Controller.Coupling agent measure hopper 2-6 bottom is connected with pneumatic pinch valve 5-10 and communicates.The gas circuit of pneumatic pinch valve 5-10 is connected with solenoid directional control valve 8-17 and communicates, and solenoid directional control valve 8-17 indicates pneumatic pinch valve 5-10 discharging by its electromagnet DT15.Pneumatic pinch valve 5-10 to be connected with overlay film puddle mixer 13 by discharge nozzle 12-6 and to communicate.
In Fig. 1-Fig. 7: major ingredient charge door 14 is arranged at overlay film puddle mixer 13 top.Overlay film puddle mixer 13 bottom has precoated sand to export 15.Overlay film puddle mixer 13 is arranged on lower floor's platform.
Below in conjunction with Fig. 8, electric loop structure of the present invention is described as follows:
In the 24V DC power supply circuit of programmable controller PLC:
Its 24V dc source is connected with programmable controller PLC through manual selection switch K1, automatic selector switch K2, automatic start switch K3, automatic stop switch K4, control flow HMI and the main frame Q8-MODBVS that weighs respectively.
The auxiliary material of its programmable controller PLC is weighed from machine Q8-AD1, Q8-AD2, Q8-AD3, Q8-AD4, Q8-AD5 and the Q8-AD6 main frame Q8-MODBVS that all weighs with auxiliary material and is connected, and the auxiliary material main frame Q8-MOSBVS that weighs is connected with plc communication module by cable.27 output signals Y21, Y22, Y26, Y27, Y30, Y31, Y32, Y33, Y34, Y35, Y36, Y40, Y41, Y42, Y43, Y44, Y45, Y46, Y52, Y53, Y54, Y55, Y56, Y57, Y60, Y61, Y63 of programmable controller PLC are connected with 27 relay coil R of corresponding numbering respectively.
In the 220V ac power supply circuit of programmable controller PLC:
In 220V alternating current first loop, above-mentioned 27 relay coil R control the normally open contact J of 27 relay coil R of corresponding numbering respectively.Concrete control circuit is: normally open contact J44, J45, J46 of relay coil R44, R45, R46 are connected respectively by the coil of contactor C21, C22, C23, and the coil of contactor C21, C22, C23 is connected with measuring pump M17, M18, M19 respectively by normally open contact C21, C22, C23 of its contactor C21, C22, C23 coil.Normally open contact J21, J22 of relay coil R21, R22 are connected with electromagnet DT22, DT23 respectively.220V alternating current two ends are also connected in parallel to 24V direct current.
In the second servo loop of 220V alternating current, relay coil R26, R27, R30, R31, R32, R33, R34, R35, R36, R43, R40, R41, R42, R52, R53, R54, R55, R56, R57, R60, R61, the normally open contact J26 of R63, J27, J30, J31, J32, J33, J34, J35, J36, J43, J40, J41, J42, J52, J53, J54, J55, J56, J57, J60, J61, J63 respectively with electromagnet DT4, DT5, DT6, DT7, DT8, DT9, DT10, DT11, DT12, DT13, DT14, DT15, DT16, DT17, DT18, DT18-1, DT19, DT19-1, DT20, DT20-1, DT21, DT21-1, DT21-2 is connected.
Claims (10)
1. in coated sand mixer, add an automatic feeding device for auxiliary material, it is characterized in that:
Phenolic resins 382# loading hopper 1-1 is connected with slide valve 4-1 and communicates, slide valve 4-1 is connected with the piston rod of cylinder 7-1, the gas circuit of cylinder 7-1 is connected with solenoid directional control valve 8-1, solenoid directional control valve 8-1 controls the Kai Heguan of slide valve 4-1 by two electromagnet DT18, slide valve 4-1 bottom is also connected with pneumatic pinch valve 5-1 and communicates, the gas circuit of pneumatic pinch valve 5-1 is connected with solenoid directional control valve 8-3 and communicates, solenoid directional control valve 8-3 indicates pneumatic pinch valve 5-1 to feed in raw material by its electromagnet DT6, pneumatic pinch valve 5-1 bottom is also connected with video disc valve 6-1 and communicates, video disc valve 6-1 is connected with the piston rod of cylinder 7-5, the gas circuit of cylinder 7-5 is connected with magnetic valve 8-2 and communicates, it is meticulous reinforced that solenoid directional control valve 8-2 controls video disc valve 6-1 by its electromagnet DT4, video disc valve 6-1 bottom to be connected with resin quantitative bucket 2-1 by charge pipe 11-1 and to communicate,
High-strength phenolic resin loading hopper 1-2 is connected with slide valve 4-2 and communicates, slide valve 4-2 is connected with the piston rod of cylinder 7-2, the gas circuit of cylinder 7-2 is connected with solenoid directional control valve 8-4 and communicates, solenoid directional control valve 8-4 controls the Kai Heguan of slide valve 4-2 by two electromagnet DT20, slide valve 4-2 bottom is also connected with pneumatic pinch valve 5-2 and communicates, the gas circuit of pneumatic pinch valve 5-2 is connected with solenoid directional control valve 8-5 and communicates, solenoid directional control valve 8-5 indicates pneumatic pinch valve 5-2 to feed in raw material by its electromagnet DT7, pneumatic pinch valve 5-2 bottom is connected with video disc valve 6-2 and communicates, video disc valve 6-2 is connected with the piston rod of cylinder 7-6, the gas circuit of cylinder 7-6 is connected with magnetic valve 8-6 and communicates, it is meticulous reinforced that solenoid directional control valve 8-6 controls video disc valve 6-2 by its electromagnet DT5, video disc valve 6-2 bottom to be connected with resin quantitative bucket 2-1 by charge pipe 11-2 and to communicate, high-strength phenolic resin loading hopper 1-2 is arranged on upper platform, because every batch of precoated sand only uses a kind of phenolic resins, so two kinds of resins share a phenolic resins loading hopper 1-2,
Below phenolic resins measure hopper 2-1, LOAD CELLS 3-1 is housed, LOAD CELLS 3-1 determines the addition of phenolic resins 382# and high-strength phenolic resin respectively by the Weighing module Q8-AD1 of Programmable Logic Controller, phenolic resins measure hopper 2-1 bottom is connected with pneumatic pinch valve 5-5 and communicates, the gas circuit of pneumatic pinch valve 5-5 is connected with solenoid directional control valve 8-12 and communicates, pneumatic pinch valve 5-5 to be connected with overlay film puddle mixer 13 by charge pipe 12-1 and to communicate, solenoid directional control valve 8-12 controls pneumatic pinch valve 5-5 by its electromagnet DT8 and add phenolic resins 382# or high-strength phenolic resin in overlay film puddle mixer 13,
Powdery iron oxide red loading hopper 1-3 bottom is provided with slide valve 4-3, slide valve 4-3 is connected with the 7-3 piston rod of cylinder, the gas circuit of cylinder 7-3 is connected with solenoid directional control valve 8-7 and communicates, solenoid directional control valve 8-7 controls the Kai Heguan of slide valve 4-3 by two electromagnet DT19, slide valve 4-3 bottom is connected with pneumatic pinch valve 5-3 and communicates, the gas circuit of pneumatic pinch valve 5-3 is connected with solenoid directional control valve 8-8 and communicates, solenoid directional control valve 8-8 indicates pneumatic pinch valve 5-3 to feed in raw material by its electromagnet DT22, pneumatic pinch valve 5-3 bottom to be connected with iron oxide red measure hopper 2-2 by charge pipe 11-3 and to communicate, below iron oxide red measure hopper 2-2, LOAD CELLS 3-2 is housed, LOAD CELLS 3-2 determines the addition of powdery iron oxide red by the Weighing module Q8-AD2 of Programmable Logic Controller, iron oxide red measure hopper 2-2 bottom is connected with pneumatic pinch valve 5-6 and communicates, the gas circuit of pneumatic pinch valve 5-6 is connected with solenoid directional control valve 8-13 and communicates, solenoid directional control valve 8-13 indicates pneumatic pinch valve 5-6 discharging by its electromagnet DT10, pneumatic pinch valve 5-6 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-2 and to communicate,
Calcium stearate loading hopper 1-4 is equipped with vibrator 16 in middle and lower part, vibrator 16 is connected with solenoid directional control valve 8-11, solenoid directional control valve 8-11 indicates vibrator 16 to vibrate by its electromagnet DT21-2, loading hopper 1-4 bottom is provided with slide valve 4-4, slide valve 4-4 is connected with the piston rod of cylinder 7-4, the gas circuit of cylinder 7-4 is connected with solenoid directional control valve 8-9 and communicates, solenoid directional control valve 8-9 controls the Kai Heguan of slide valve 4-3 by two electromagnet DT21, slide valve 4-4 bottom is connected with pneumatic pinch valve 5-4 and communicates, the gas circuit of pneumatic pinch valve 5-4 is connected with solenoid directional control valve 8-10 and communicates, solenoid directional control valve 8-10 indicates pneumatic pinch valve 5-4 discharging by its electromagnet DT23, pneumatic pinch valve 5-4 bottom to be connected with calcium stearate measure hopper 2-3 by charge pipe 11-4 and to communicate, below calcium stearate measure hopper 2-3, LOAD CELLS 3-3 is housed, LOAD CELLS 3-3 determines the addition of calcium stearate by the Weighing module Q8-AD3 of Programmable Logic Controller, calcium stearate measure hopper 2-3 bottom is connected with pneumatic pinch valve 5-7 and communicates, the gas circuit of pneumatic pinch valve 5-7 is connected with solenoid directional control valve 8-14 and communicates, solenoid directional control valve 8-14 indicates pneumatic pinch valve 5-7 discharging by its electromagnet DT9, pneumatic pinch valve 5-7 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-3 and to communicate,
Dibutyl ester loading hopper 1-5 bottom is connected with diaphragm valve 10-1 and communicates, diaphragm valve 10-1 is fed in raw material by electromagnet DT14 indicating film plate valve 10-1, diaphragm valve 10-1 is connected with measuring pump 9-1, measuring pump 9-1 is to the dibutyl ester metering added, measuring pump 9-1 to be connected with dibutyl ester measure hopper 2-4 by charge pipe 11-5 and to communicate, below dibutyl ester measure hopper 2-4, LOAD CELLS 3-4 is housed, LOAD CELLS 3-4 determines the addition of dibutyl ester by the Weighing module Q8-AD4 of Programmable Logic Controller, dibutyl ester measure hopper 2-4 bottom is connected with pneumatic pinch valve 5-8 and communicates, the gas circuit of pneumatic pinch valve 5-8 is connected with solenoid directional control valve 8-15 and communicates, solenoid directional control valve 8-15 indicates pneumatic pinch valve 5-15 discharging by its electromagnet DT13, pneumatic pinch valve 5-8 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-4 and to communicate,
Methenamine loading hopper 1-6 bottom is connected with diaphragm valve 10-2 and communicates, diaphragm valve 10-2 is fed in raw material by electromagnet DT12 indicating film plate valve 10-2, diaphragm valve 10-2 is connected with measuring pump 9-2, measuring pump 9-2 is to the methenamine metering added, measuring pump 9-2 to be connected with methenamine measure hopper 2-5 by charge pipe 11-6 and to communicate, below methenamine measure hopper 2-5, LOAD CELLS 3-5 is housed, LOAD CELLS 3-5 determines the addition of methenamine by the Weighing module Q8-AD5 of Programmable Logic Controller, methenamine measure hopper 2-5 bottom is connected with pneumatic pinch valve 5-9 and communicates, the gas circuit of pneumatic pinch valve 5-9 is connected with solenoid directional control valve 8-16 and communicates, solenoid directional control valve 8-16 indicates pneumatic pinch valve 5-9 discharging by its electromagnet DT11, pneumatic pinch valve 5-9 bottom to be connected with overlay film puddle mixer 13 by discharge nozzle 12-5 and to communicate,
Coupling agent loading hopper 1-7 bottom is connected with diaphragm valve 10-3 and communicates, diaphragm valve 10-3 is fed in raw material by electromagnet DT16 indicating film plate valve 10-3, diaphragm valve 10-3 is connected with measuring pump 9-3, measuring pump 9-3 is to the coupling agent metering added, measuring pump 9-3 to be connected with coupling agent measure hopper 2-6 by charge pipe 11-7 and to communicate, below coupling agent measure hopper 2-6, LOAD CELLS 3-6 is housed, LOAD CELLS 3-6 determines the addition of coupling agent by the Weighing module Q8-AD6 of Programmable Logic Controller, coupling agent measure hopper 2-6 bottom is connected with pneumatic pinch valve 5-10 and communicates, the gas circuit of pneumatic pinch valve 5-10 is connected with solenoid directional control valve 8-17 and communicates, solenoid directional control valve 8-17 indicates pneumatic pinch valve 5-10 discharging by its electromagnet DT15, pneumatic pinch valve 5-10 to be connected with overlay film puddle mixer 13 by discharge nozzle 12-6 and to communicate,
Major ingredient charge door 14 is arranged at overlay film puddle mixer 13 top, and overlay film puddle mixer 13 bottom has precoated sand to export 15.
2. a kind of automatic feeding device adding auxiliary material in coated sand mixer according to claim 1, is characterized in that: described LOAD CELLS selects the LOAD CELLS of HSX model.
3. a kind of automatic feeding device adding auxiliary material in coated sand mixer according to claim 1, is characterized in that: described pneumatic pinch valve selects VMP025 pneumatic pinch valve device.
4. a kind of automatic feeding device adding auxiliary material in coated sand mixer according to claim 1, is characterized in that: described measuring pump selects U.S.'s rice to pause sieve P026-358TI measuring pump.
5. a kind of automatic feeding device adding auxiliary material in coated sand mixer according to claim 1, is characterized in that: described electromagnet selects two-position four way change valve electromagnet.
6. in coated sand mixer, add an electric loop structure for the automatic feeding device of auxiliary material, it is characterized in that:
In the 24V DC power supply circuit of programmable controller PLC:
Its 24V dc source is connected with programmable controller PLC through manual selection switch K1, automatic selector switch K2, automatic start switch K3, automatic stop switch K4, control flow HMI and the main frame Q8-MODBVS that weighs respectively;
The auxiliary material of its programmable controller PLC is weighed from machine Q8-AD1, Q8-AD2, Q8-AD3, Q8-AD4, Q8-AD5 with the Q8-AD6 main frame Q8-MODBVS that all weighs with auxiliary material is connected, the auxiliary material main frame Q8-MOSBVS that weighs is connected with plc communication module by cable, 27 output signal Y21 of programmable controller PLC, Y22, Y26, Y27, Y30, Y31, Y32, Y33, Y34, Y35, Y36, Y40, Y41, Y42, Y43, Y44, Y45, Y46, Y52, Y53, Y54, Y55, Y56, Y57, Y60, Y61, Y63 is connected with 27 relay coil R of corresponding numbering respectively,
In the 220V ac power supply circuit of programmable controller PLC:
In 220V alternating current first loop, above-mentioned 27 relay coil R control the normally open contact J of 27 relay coil R of corresponding numbering respectively, concrete control circuit is: relay coil R44, R45, the normally open contact J44 of R46, J45, J46 is respectively by contactor C21, C22, the coil of C23 is connected, contactor C21, C22, the coil of C23 is respectively by its contactor C21, C22, the normally open contact C21 of C23 coil, C22, C23 and measuring pump M17, M18, M19 is connected, relay coil R21, the normally open contact J21 of R22, J22 respectively with electromagnet DT22, DT23 is connected, 220V alternating current two ends are also connected in parallel to 24V direct current,
In the second servo loop of 220V alternating current, relay coil R26, R27, R30, R31, R32, R33, R34, R35, R36, R43, R40, R41, R42, R52, R53, R54, R55, R56, R57, R60, R61, the normally open contact J26 of R63, J27, J30, J31, J32, J33, J34, J35, J36, J43, J40, J41, J42, J52, J53, J54, J55, J56, J57, J60, J61, J63 respectively with electromagnet DT4, DT5, DT6, DT7, DT8, DT9, DT10, DT11, DT12, DT13, DT14, DT15, DT16, DT17, DT18, DT18-1, DT19, DT19-1, DT20, DT20-1, DT21, DT21-1, DT21-2 is connected.
7. a kind of electric loop structure adding the automatic feeding device of auxiliary material in coated sand mixer according to claim 6, is characterized in that: described programmable controller PLC selects the FX3U-32MES-A Programmable Logic Controller of MIT.
8. a kind of electric loop structure adding the automatic feeding device of auxiliary material in coated sand mixer according to claim 6, is characterized in that: described communication module selects the FX3U-485ADP-MB communication module of MIT.
9. a kind of electric loop structure adding the automatic feeding device of auxiliary material in coated sand mixer according to claim 6, is characterized in that: described control flow HMI selects the touch control flow of TK6070Ih10.
10. a kind of electric loop structure adding the automatic feeding device of auxiliary material in coated sand mixer according to claim 6, is characterized in that: described auxiliary material choice of main machine Q8-MODBUS auxiliary material of weighing is weighed main frame.
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Cited By (1)
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| CN117300055A (en) * | 2023-09-15 | 2023-12-29 | 天津京泊模具铸造有限公司 | Resin sand mixer |
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