CN102431138B - Electronic control system of injection molding machine for controlling temperature by using time - Google Patents
Electronic control system of injection molding machine for controlling temperature by using time Download PDFInfo
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- CN102431138B CN102431138B CN201110331308.0A CN201110331308A CN102431138B CN 102431138 B CN102431138 B CN 102431138B CN 201110331308 A CN201110331308 A CN 201110331308A CN 102431138 B CN102431138 B CN 102431138B
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Abstract
The invention relates to an electronic control system of an injection molding machine for controlling temperature by using time; the electronic control system comprises a master switch (QF2); a normally open contact (1) of the master switch (QF2) is connected with a normally open contact 2 of a flowing-through Z phase sequence disconnection protector; the normally open contact 2 of the flowing-through Z phase sequence disconnection protector is connected with a normally closed contact 3 of an emergency stop switch (SB1); the electronic control system is characterized in that the normally closed contact 3 of the emergency stop switch (SB1) is connected with a heating coil start-up circuit, a knob switch control circuit, a time protective circuit, an over-temperature alarm circuit, a time control warming circuit and a warming control circuit; the electronic control system is suitable for injection molding operation of electric heating highlight products, effectively ensures the demands of each region of the cavity of the mold for temperature through the time adjustment of each time slot, meets the molding requirements of the highlight products and is necessary equipment for producing the electric heating highlight injection molding products.
Description
Technical field
The present invention relates to the dynamo-electric electric-control system of a kind of injection moulding, the especially a kind of injection machine temperature control system that can produce high light product, specifically a kind of electronic control system of injection molding machine that utilizes time control temperature.
Background technology
At present, in development, particularly rapidly in adapted to injection system, the forming technique of Hot runner Technology and high gloss mold is also used in the actual production and operation more and more, goes to meet the production of high light product by increasing the temperature controlled function of injection moulding auxiliary equipment.
At present, the technology that the mould of injection machine is used electrical heating to heat is rapidly very universal, on high gloss mold, use also more and more, because the surface quality requirement of high light product is very harsh, so it is also very large on the impact of product quality that mould surface obtains state of temperature, the method of generally using in injection moulding process is at present: adopt special high-efficiency heating pipe, imbed the 3-5mm place of the high Seterolithography face of mould, the power supply of (or time delay) connection electric heating tube in die sinking, make the temperature fast rise of mould surface, when next mould is closed, reach the process conditions of high gloss mold production requirement.
Due to what adopt, it is high-efficiency heating pipe, the speed of temperature rise is very fast, surface temperature at the time in several seconds heating tube can reach 150-200 degree, and the time that the excursion of the moulding process of product requirement temperature and temperature arrive is very harsh, otherwise the quality of product just can not get effective assurance.
Summary of the invention
In the object of the invention is to produce for the high gloss mold of existing injection machine, multivariable system difficulty is high, the unmanageable problem of product quality, design a kind of can effectively control the heating of mould, make the limit of temperature rise of temperature can meet manufacturing technique requirent, with the electronic control system of injection molding machine of the rising of time Control temperature and time of reaching.
Technical scheme of the present invention is:
A kind of electronic control system of injection molding machine that utilizes time control temperature, it comprises master switch QF2, the normally open contact 1 of master switch QF2 connects the normally open contact 2 of the Z phase sequence line disconnection protector of flowing through, the normally open contact 2 of the Z phase sequence of flowing through line disconnection protector connects the normally closed interlock 3 of emergency stop switch SB1, it is characterized in that the normally closed interlock 3 of described emergency stop switch SB1 and is connected to heater coil start-up circuit, rotary switch control circuit, guardtime circuit, overtemperature alarm circuit, time control intensification circuit and intensification control circuit, described heater coil start-up circuit comprises the second shutdown switch SB2, the 3rd shutdown switch SB3, the 4th shutdown switch SB4, the 5th shutdown switch SB5, the 5th relay K A5, the 6th relay K A6 and A.C. contactor KM0, the normally open contact 5 of the normally closed interlock 3 of emergency stop switch SB1 by the second shutdown switch SB2 normally closed interlock 4 and the 3rd shutdown switch SB3 starting switch is after pressing connection, normally closed interlock 6 through the 6th relay K A6 overtemperature alarm, connect the coil of A.C. contactor KM0 host-initiated, and the startup contact 4 of the normally open contact by A.C. contactor KM0 to the 3rd shutdown switch SB3 start button, 5 carry out self-insurance, reach the object of host-initiated, it is the power supply of getting the startup contact 5 of the 3rd shutdown switch SB3 that electric heating starts, by the normally closed interlock 7 of the 4th shutdown switch SB4 stop button and the normally open contact 8 of the 5th shutdown switch SB5 start button, after pressing start button, connect the coil of the 5th relay K A5 heating starting, after heater coil energising, its normally closed interlock adhesive, described rotary switch control circuit comprises the first rotary switch Q1 and the second rotary switch Q2, the first rotary switch Q1 has two states: manually with automatic, manually that normally closed interlock 3 through emergency stop switch SB1 is by the normally closed interlock 9 of the second rotary switch Q2, cross the normally open contact 10 of the first rotary switch Q1, connect the coil of the first relay K A1, automatically be that normally closed interlock 3 through emergency stop switch SB1 is by the normally closed interlock 9 of the second rotary switch Q2, cross the normally closed interlock 10 of the first rotary switch Q1, connect the coil of the second relay K A2, the second rotary switch Q2 also has two states: time and temperature control, and a kind of is to do time delay to control use, a kind of is to do ordinary temp to control use, during the coil electricity of the 3rd relay K A3, as temperature, controls, and during the 3rd relay K A3 coil blackout, as the time, controls, the normally closed interlock 3 of emergency stop switch SB1 is switched on or switched off the power supply of the coil of the 3rd A.C. contactor KM3 by the normally open contact 12 of the second rotary switch Q2, the state of a control of time and temperature is switched, described guardtime circuit comprises the second relay K A2, the 4th relay K A4 the 7th relay K A7 and time relay KT0, under automatic condition, the total time of heating is subject to the control of the 4th relay K A4, the electric current that the normally closed interlock 3 of emergency stop switch SB1 attracts is the normally open contact 14 to the 7th relay K A7 through the normally open contact 13 of relay the 2nd KA2, turn-on time relay K T0 coil, when the time relay obtain electric after the time relay start timing, reach after setting-up time, the contact action upset of the time relay, normally closed interlock 15 through time relay KT0, connect the coil of the 4th relay K A4, the coil of the 4th relay K A4 obtain electric after, the normally open contact by 13,14 couples of the 7th relay K A7 of its normally open contact carries out self-insurance, described overtemperature alarm circuit comprises some thermometer KC, as long as having the contact of a table in the Alarm contactor of each thermometer KC connects, the coil 16 of the 6th relay K A6 will be connected, when the coil of the 6th relay K A6 obtains after electric, the power supply of host-initiateds will be disconnected by the normally closed interlock 5,6 of the 6th relay K A6, the described time is controlled intensification circuit and comprises very first time relay K T1, after heating starting, normally open contact 18 adhesives of the 5th relay K A5 connect and connect the normally closed interlock 22 of very first time relay K T1 after the normally closed interlock 21 of the 3rd relay K A3 and the normally open contact of the first K switch 1 23 is connected the first A.C. contactor KM1 in parallel and the coil power of the second A.C. contactor KM2 after the normally open contact 20 of the normally open contact 20 of the first relay K A1 or the normally open contact 19 of the second relay K A2 and the 4th relay K A4, described intensification control circuit comprises thermometer TC1, the normally closed interlock 3 of emergency stop switch SB1 through serial connection the 3rd relay K A3 and thermometer TC1 normally open contact 22 and after be connected with the normally open contact 23 of the first K switch 1, be then connected with the coil power of the second A.C. contactor KM2 with the first A.C. contactor KM1 of parallel connection.
Another group normally open contact 47 of the first described K switch 1 is connected with the power supply of very first time relay K T1 with thermometer TC1 simultaneously.
Beneficial effect of the present invention:
The present invention is applicable to the injection molding operation of the high light product of electrical heating, by the Timing of each time period, effectively guarantees the requirement of each regional temperature of mold cavity, meets the needs of high light formed product, is the necessary equipment that the high light injecting products of electrical heating is produced.
Accompanying drawing explanation
Fig. 1 is engineering process schematic diagram of the present invention.
Fig. 2 is the electrical schematic diagram of signal lamp of the present invention.
Fig. 3 is electrical schematic diagram of the present invention.
In figure: TC is thermometer, KT is the time relay, and KM is A.C. contactor, and SB is switch, and D1 is indicator lamp.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
As Figure 1-3.
The course of work of the present invention is: receive after the coherent signal of injection machine, power supply be provided, guarantee that the die cavity temperature of mould reaches the scope of regulation in the specific time for high-efficiency heating pipe, thereby the production process that guarantees high gloss mold reaches technological requirement, meet the working condition of high light product, as shown in Figure 1.
The control signal lamp of electric-control system of the present invention is as shown in Figure 2:
Fig. 2 (a) is indicator light circuit: green light is relay indicating light, when KM0 A.C. contactor is worked, and green light, indication equipment host-initiated.Red light is alarm lamp, when KA6 relay is worked, and when red, the control temperature of indication equipment surpasses setting value.Amber light is burner on light, and when KM6 A.C. contactor is worked, amber light is bright, and indication equipment is in heating process.
Fig. 2 (b) is time relay setting circuit: time relay set when KA1, KA5 adhesive under manual mode, starts timing.Under auto state, time relay set when KA2, KA4 adhesive, starts timing.
Fig. 2 (c) is injection moulding machine mould open signal circuit diagram: when injection moulding machine mould open, by KA7 relay to control appliance.
Electric principle of the present invention as shown in Figure 3.
A kind of electronic control system of injection molding machine that utilizes time control temperature; it comprises master switch QF2; the normally open contact 1 of master switch QF2 connects the normally open contact 2 of the Z phase sequence line disconnection protector of flowing through; the normally open contact 2 of the Z phase sequence of flowing through line disconnection protector connects the normally closed interlock 3 of emergency stop switch SB1, and the normally closed interlock 3 of described emergency stop switch SB1 is also connected to heater coil start-up circuit, rotary switch control circuit, guardtime circuit, overtemperature alarm circuit, time control intensification circuit and intensification control circuit.Details are as follows:
(a), control power supply from normally open contact-1 of QF2 switch, flow through normally open contact-2 of Z phase sequence breaking protection, normally closed interlock-3 of SB1 emergency stop switch, by normally closed interlock-4 of SB2 shutdown switch and normally open contact-5 of SB3 starting switch after pressing connection, normally closed interlock-6 through KA6 overtemperature alarm, connect the coil of KM0 host-initiated, and by the normally open contact of KM0, the startup contact-4-5 of SB3 start button is carried out to self-insurance, reach the object of host-initiated, it is the power supply of getting-No. 5 lines that electric heating starts, by normally closed interlock-7 of SB4 stop button and normally open contact-8 of SB5 start button, after pressing start button, connect the coil of KA5 heating starting, after heater coil energising, its normally closed interlock adhesive, the KA5 contact that is connected in parallel on start button contact-7-8 carries out self-insurance to start button contact.
(b), Q1, Q2 be two rotary switches, Q1 switch has two states: manually and automatically, be manually through-No. 3 lines by normally closed interlock-9 of Q2 knob, cross normally open contact-10 of Q1, connect the coil of KA1 relay.Automatically be to pass through normally closed interlock-9 of Q2 knob through-No. 3 lines, cross normally closed interlock-10 of Q1, connect the coil of KA2 relay.Q2 switch also has two states: time and temperature control, and a kind of is to do time delay to control use, a kind of is to do ordinary temp to control use.During the energising of KA3 relay coil, as temperature, control, during the power-off of KA3 relay coil, as the time, control.-No. 3 line is switched on or switched off the power supply of KM3 contactor coil by normally open contact-12 of Q2, and the state of a control of time and temperature is switched.
(c), guardtime: under automatic condition, the total time of heating is subject to the protection of KA4 relay.Control procedure is :-No. 3 line arrives normally open contact-14 of KA7 relay through normally open contact-13 of KA2 relay, connect the coil of the KT0 time relay, when the time relay obtain electric after the time relay start timing, reach after setting-up time, the contact action upset of the time relay, through normally closed interlock-15 of the KT0 time relay, connect the coil of KA4 relay.The coil of KA4 relay obtain electric after, normally open contact-13-14 of KA4, carries out self-insurance to the normally open contact of KA7.
(d), overtemperature alarm: in the Alarm contactor of thermometer KC1-12, as long as having the contact of a table in 12 tables connects, will connect relay coil-16 of KA6, when the coil of KA6 obtains after electric, will, by normally closed interlock-5-6 of KA6, disconnect the power supply of host-initiated.
(e) time is controlled and heats up: after heating starting, normally open contact-18 adhesive of KA5 relay, normally open contact-20 or (normally open contact-19 of KA2 relay through KA1 relay, normally open contact-20 of KA4 relay), normally open contact-23 of normally closed interlock-21 of KA3, normally closed interlock-22 of KT1, K1 switch, the coil power of two A.C. contactors of connection KM1, KM2.
Intensification control circuit :-No. 3 lines, through KA3 and normally open contact-22 of TC1 and normally open contact-23 of K1 switch, are connected the coil power of two A.C. contactors of KM1, KM2.
The power supply of thermometer TC1 and time relay KT1 is connected in another group normally open contact-47 of K switch 1 simultaneously in the connection of K1.
During concrete enforcement:
The workflow of delay controller is: in the time of automatic operation, press SB3(host-initiated) press button, SB5(heating starting) after press button, Q1(is manually automatic) selector switch be placed on automated location, by Q2(time temperature control) selector switch be placed on the position of time, the die sinking actuating signal of injection machine will trigger delayer heating schedule, mould starts heating, when the mold heated time, arrives after the time of setting, and disconnects heating schedule.When the die sinking signal of next injection machine triggers, delay controller carries out timing heating to mould again.During manual work, press SB3(host-initiated) press button, Q1(is manually automatic) selector switch be placed on manual position, by Q2(time temperature control) selector switch be placed on the position of time, press SB5(heating starting) after press button,
Delay controller carries out timing heating to mould.
The part that the present invention does not relate to all prior art that maybe can adopt same as the prior art is realized.
Claims (2)
1. one kind is utilized the electronic control system of injection molding machine that the time controls temperature, it comprises master switch (QF2), the normally open contact (1) of master switch (QF2) connects first normally open contact (2) of phase sequence relay (Z), first normally open contact (2) of phase sequence relay (Z) connects first normally closed interlock (3) of the first shutdown switch (SB1), it is characterized in that first normally closed interlock (3) of described the first shutdown switch (SB1) and is connected to heater coil start-up circuit, rotary switch control circuit, guardtime circuit, overtemperature alarm circuit, time control intensification circuit and intensification control circuit, described heater coil start-up circuit comprises the second shutdown switch (SB2), the 3rd shutdown switch (SB3), the 4th shutdown switch (SB4), the 5th shutdown switch (SB5), the 5th relay (KA5), the 6th relay (KA6) and A.C. contactor (KM0), first normally closed interlock (3) of the first shutdown switch (SB1) by second normally closed interlock (4) of the second shutdown switch (SB2) and second normally open contact (5) of the 3rd shutdown switch (SB3) starting switch after pressing connection, the 3rd normally closed interlock (6) through the 6th relay (KA6) overtemperature alarm, connect the coil of A.C. contactor (KM0) host-initiated, and by the normally open contact of A.C. contactor (KM0), second normally open contact (5) of the second shutdown switch (SB2) the second normally closed interlock (4) and the 3rd shutdown switch (SB3) starting switch is carried out to self-insurance, reach the object of host-initiated, electric heating startup is the power supply of getting second normally open contact (5) of the starting switch of the 3rd shutdown switch (SB3), by the 4th normally closed interlock (7) of the 4th shutdown switch (SB4) stop button and the 3rd normally open contact (8) of the 5th shutdown switch (SB5) start button, after pressing start button, connect the coil of the 5th relay (KA5) heating starting, after heater coil energising, the normally closed interlock adhesive of the 5th relay (KA5), described rotary switch control circuit comprises the first rotary switch (Q1) and the second rotary switch (Q2), the first rotary switch (Q1) has two states: manually with automatic, manually by the 5th normally closed interlock (9) of the second rotary switch (Q2) through first normally closed interlock (3) of the first shutdown switch (SB1), cross the 4th normally open contact (10) of the first rotary switch (Q1), connect the coil of the first relay (KA1), automatically be by the 5th normally closed interlock (9) of the second rotary switch (Q2) through first normally closed interlock (3) of the first shutdown switch (SB1), cross the 4th normally open contact (10) of the first rotary switch (Q1), connect the coil of the second relay (KA2), the second rotary switch (Q2) also has two states: time and temperature control, a kind of is to do time delay to control use, be to do ordinary temp to control a use, during the coil electricity of the 3rd relay (KA3), as temperature, control, during the 3rd relay (KA3) coil blackout, as the time, control, first normally closed interlock (3) of the first shutdown switch (SB1) is switched on or switched off the power supply of the coil of the 3rd relay (KA3) by 5 constant virtues open contact (12) of the second rotary switch (Q2), the state of a control of time and temperature is switched, described guardtime circuit comprises the second relay (KA2), the 4th relay (KA4), the 7th relay K A7 and the time relay (KT0), under automatic condition, be subject to the control of the 4th relay (KA4) total time of heating, the electric current that first normally closed interlock (3) of the first shutdown switch (SB1) attracts is the 7th normally open contact (14) to the 7th relay (KA7) through the 6th normally open contact (13) of the second relay (KA2), the coil of relay turn-on time (KT0), when the time relay obtain electric after the time relay start timing, reach after setting-up time, the contact action upset of the time relay, the 6th normally closed interlock (15) through the time relay (KT0), connect the coil of the 4th relay (KA4), the coil of the 4th relay (KA4) obtain electric after, by the 6th normally open contact (13) of the second relay (KA2), the 7th normally open contact (14) of the 7th relay (KA7) carries out self-insurance to the normally open contact of the 7th relay (KA7), described overtemperature alarm circuit comprises some thermometers (KC), each thermometer (KC) if Alarm contactor in have the contact of a table to connect, the coil (16) of the 6th relay (KA6) will be connected, when the coil of the 6th relay (KA6) obtains after electric, the power supply of host-initiated will be disconnected by the 3rd normally closed interlock (6) of the 6th relay (KA6), the described time is controlled intensification circuit and comprises very first time relay (KT1), after heating starting, the 8th normally open contact (18) adhesive of the 5th relay (KA5), after the 9th normally open contact (20) of the 9th normally open contact (20) of the first relay (KA1) or the tenth normally open contact (19) of the second relay (KA2) and the 4th relay (KA4), connect the 7th normally closed interlock (21) of the 3rd relay (KA3), connect afterwards the 8th normally closed interlock (22) of very first time relay (KT1) and the 11 normally open contact (23) of the first switch (K1), the 11 normally open contact (23) of the first switch (K1) is connected the first A.C. contactor (KM1) in parallel and the coil power of the second A.C. contactor (KM2), described intensification control circuit comprises thermometer (TC1), first normally closed interlock (3) of the first shutdown switch (SB1) is connected with the 11 normally open contact (23) of the first switch (K1) afterwards through the 12 normally open contact (24) of serial connection the 3rd relay (KA3) and thermometer (TC1), is then connected with the coil power of the second A.C. contactor (KM2) with first A.C. contactor (KM1) of parallel connection.
2. the electronic control system of injection molding machine that utilizes time control temperature according to claim 1, is characterized in that another group the 13 normally open contact (47) of described the first switch (K1) is connected with the power supply of very first time relay (KT1) with thermometer (TC1) simultaneously.
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Families Citing this family (5)
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| CN107443697A (en) * | 2017-09-29 | 2017-12-08 | 高滨 | A kind of plastic mould hot runner temperature controller |
| CN109049593B (en) * | 2018-07-13 | 2024-04-30 | 海天塑机集团有限公司 | Safety loop of vertical injection molding machine with servo turntable |
| CN109927257A (en) * | 2019-03-15 | 2019-06-25 | 安徽世轩机械科技有限公司 | A kind of preparation method of injecting glue part |
| CN113778147B (en) * | 2021-07-23 | 2022-05-17 | 海天塑机集团有限公司 | Method and system for restraining current fluctuation by controlling current output |
| CN113510912B (en) * | 2021-09-15 | 2022-01-11 | 广东伊之密高速包装系统有限公司 | Automatic power-off control method and device for injection molding machine and injection molding machine |
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| CN202318852U (en) * | 2011-10-27 | 2012-07-11 | 南京华格电汽塑业有限公司 | Electric control system utilizing time to control temperature for injection molding machine |
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| US6144117A (en) * | 1998-09-29 | 2000-11-07 | Xerox Corporation | Multiple injection of a single injection molding valve gate |
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| CN2860813Y (en) * | 2005-09-08 | 2007-01-24 | 熊猫电子集团有限公司 | Control device for injection molding machine with position and time dual-control while loosing core |
| CN101264658A (en) * | 2007-03-13 | 2008-09-17 | 暐立实业有限公司 | Die temperature control device and control method thereof |
| CN201800208U (en) * | 2010-07-27 | 2011-04-20 | 杭州卡塞尔机械有限公司 | Temperature control system of mold of injection molding machine |
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