CN102431138A - 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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- CN102431138A CN102431138A CN2011103313080A CN201110331308A CN102431138A CN 102431138 A CN102431138 A CN 102431138A CN 2011103313080 A CN2011103313080 A CN 2011103313080A CN 201110331308 A CN201110331308 A CN 201110331308A CN 102431138 A CN102431138 A CN 102431138A
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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 injection machine electric-control system that utilizes time control temperature.
Background technology
At present, particularly rapidly in the adapted to injection system, the forming technique of hot flow path technology and high optical mode tool also is used in the actual production and operation more and more, goes to satisfy the production of high light product through the temperature controlled function of increase injection moulding auxiliary equipment in development.
At present; The technology that the mould of injection machine uses electrical heating to heat rapidly is very universal, on high optical mode tool, uses also to get more and more, because high light surface quality of products requires ten minutes harsh; So it is also very big to the influence of product quality that the mould molding face gets state of temperature; The method of in injection moulding process, generally using at present is: adopt special efficient heating tube, 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 molding face, when next mould closes, reach the process conditions of high optical mode tool production requirement.
Because what adopt is efficient heating tube; The speed of temperature rise is very fast; Surface temperature at the time in several seconds heating tube can reach the 150-200 degree; And the time that the moulding process of product requires variation of temperature scope and temperature to arrive is very harsh, otherwise the quality of product just can not get effective assurance.
Summary of the invention
The objective of the invention is in the high optical mode tool production of existing injection machine; Injection machine temperature control difficulty is high; The unmanageable problem of product quality; Design a kind of can effectively control to the heating of mould, make the limit of temperature rise of temperature can satisfy manufacturing technique requirent, with the injection machine electric-control system of the rising of time relay control temperature and time of reaching.
Technical scheme of the present invention is:
A kind of injection machine electric-control system 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 through 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 normally open contact through A.C. contactor KM0 carries out self-insurance to the startup contact 4,5 of the 3rd shutdown switch SB3 start button; Reach the purpose of host-initiated, it is the power supply of getting the startup contact 5 of the 3rd shutdown switch SB3 that electric heating starts, through 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 the 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; It manually is the normally closed interlock 9 that passes through the second rotary switch Q2 through the normally closed interlock 3 of emergency stop switch SB1; Crossing the normally open contact 10 of the first rotary switch Q1, connect the coil of the first relay K A1, is the normally closed interlock 9 that passes through the second rotary switch Q2 through the normally closed interlock 3 of emergency stop switch SB1 automatically; 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, a kind of is to do time-delay control usefulness, a kind of is to do ordinary temp control usefulness, during the coil electricity of the 3rd relay K A3 as temperature control, during the 3rd relay K A3 coil blackout as time control; 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 through the normally open contact 12 of the second rotary switch Q2, and time and temperature controlling state are 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 receives the control of the 4th relay K A4, and the electric current that the normally closed interlock 3 of emergency stop switch SB1 attracts is through the normally open contact 14 of normally open contact 13 to the 7th relay K A7 of relay the 2nd KA2; Turn-on time relay K T0 coil; When the time relay get electric after the time relay pick up counting, reach setting-up time after, the contact of time relay action upset; Through the normally closed interlock 15 of time relay KT0, connect the coil of the 4th relay K A4; The coil of the 4th relay K A4 get electric after, the normally open contact through 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 the contact of a table is arranged in the Alarm contactor of each thermometer KC to be connected; Will connect the coil 16 of the 6th relay K A6, get the power supply that will break off host-initiateds after electric when the coil of the 6th relay K A6 through the normally closed interlock 5,6 of the 6th relay K A6; Described time control intensification circuit comprises very first time relay K T1; Behind heating starting; Normally open contact 18 adhesives of the 5th relay K A5 connect the normally closed interlock 22 of very first time relay K T1 behind the normally closed interlock 21 that meets the 3rd relay K A3 behind the normally open contact 20 of the normally open contact 19 of the normally open contact 20 of the first relay K A1 or the second relay K A2 and the 4th relay K A4 and the normally open contact 23 of first K switch 1 is connected first A.C. contactor KM1 of parallel connection and the coil power of the second A.C. contactor KM2; Described intensification control circuit comprises thermometer TC1; The normally closed interlock 3 of emergency stop switch SB1 links to each other with the normally open contact 23 of first K switch 1 through normally open contact 22 and the back of serial connection the 3rd relay K A3 and thermometer TC1, links to each other with first A.C. contactor KM1 of parallel connection and the coil power of the second A.C. contactor KM2 then.
Another group normally open contact 47 of described first K switch 1 links to each other 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, and the time adjusting through each time period guarantees the requirement of each regional temperature of mold cavity effectively, satisfies the needs of high light formed product, is the necessary equipment that the high light beam molding product of electrical heating is produced.
Description of drawings
Fig. 1 is an engineering process sketch map of the present invention.
Fig. 2 is the electrical schematic diagram of signal lamp of the present invention.
Fig. 3 is an electrical schematic diagram of the present invention.
Among the figure: TC is a thermometer, and KT is the time relay, and KM is an A.C. contactor, and SB is a switch, and D1 is an indicator lamp.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Shown in Fig. 1-3.
The course of work of the present invention is: power supply is provided, guarantees that the die cavity temperature of mould reaches the scope of regulation in the specific time after receiving the coherent signal of injection machine, for efficient heating tube; Thereby the production process that guarantees high optical mode tool reaches technological requirement; Satisfy 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 an indicator light circuit: green light is a relay indicating light, and when the KM0 A.C. contactor was worked, green light was bright, the indication equipment host-initiated.Red light is an alarm lamp, and when the KA6 relay was worked, red light was bright, and the control temperature of indication equipment surpasses setting value.Amber light is a burner on light, and when the KM6 A.C. contactor was worked, amber light was bright, and indication equipment is in the heating process.
Fig. 2 (b) is a time relay setting circuit: time relay set when KA1, KA5 adhesive under the manual state picks up counting.Time relay set when KA2, KA4 adhesive picks up counting under the auto state.
Fig. 2 (c) is the injection moulding machine mould open signal circuit diagram: when injection moulding machine mould open, give control appliance through the KA7 relay.
Electric principle of the present invention is as shown in Figure 3.
A kind of injection machine electric-control system 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 also 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.Details are as follows:
(a), the control power supply from the normally closed interlock-3 of the normally open contact-2 of the normally open contact-1 of QF2 switch, the Z phase sequence breaking protection of flowing through, SB1 emergency stop switch, through the SB2 shutdown switch normally closed interlock-4 and SB3 starting switch normally open contact-5 press connect the back, through the normally closed interlock-6 of KA6 overtemperature alarm; Connect the coil of KM0 host-initiated; And the normally open contact through KM0 carries out self-insurance to the startup contact-4-5 of SB3 start button, reaches the purpose of host-initiated, and it is the power supply of getting-No. 5 lines that electric heating starts; Through the normally closed interlock-7 of SB4 stop button and the normally open contact-8 of SB5 start button; After pressing start button, connect the coil of KA5 heating starting, after the 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 the start button contact.
(b), Q1, Q2 be two rotary switches, the Q1 switch has two states: manually with automatically, manually be through-No. 3 lines normally closed interlock-9 through the Q2 knob, cross the normally open contact-10 of Q1, connect the coil of KA1 relay.Automatically be through-No. 3 lines normally closed interlock-9, cross the normally closed interlock-10 of Q1, connect the coil of KA2 relay through the Q2 knob.The Q2 switch also has two states: time and temperature control, and a kind of is to do time-delay control usefulness, a kind of is to do ordinary temp control to use.As temperature control, be used as time control during the outage of KA3 relay coil during the energising of KA3 relay coil.-No. 3 lines are switched on or switched off the power supply of KM3 contactor coil through the normally open contact-12 of Q2, and time and temperature controlling state are switched.
(c), guardtime: under automatic condition, the total time of heating receives the protection of KA4 relay.Control procedure is :-No. 3 lines arrive the normally open contact-14 of KA7 relay through the normally open contact-13 of KA2 relay; Connect the coil of the KT0 time relay; When the time relay get electric after the time relay pick up counting, reach setting-up time after, the contact of time relay action upset; Through the normally closed interlock-15 of the KT0 time relay, connect the coil of KA4 relay.The coil of KA4 relay get 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 have the contact of a table to connect in 12 tables; Will connect the relay coil-16 of KA6, will break off the power supply of host-initiated through normally closed interlock-5-6 of KA6 after electric when the coil of KA6 gets.
(e) time control heats up: behind heating starting; The normally open contact of KA5 relay-18 adhesive; Normally open contact-20 or the (normally open contact of KA2 relay-19 through the KA1 relay; The normally open contact of KA4 relay-20), the normally open contact-23 of the normally closed interlock of the normally closed interlock of KA3-21, KT1-22, K1 switch, the coil power of two A.C. contactors of connection KM1, KM2.
The intensification control circuit :-No. 3 lines are connected the coil power of two A.C. contactors of KM1, KM2 through KA3 and the normally open contact-22 of TC1 and the normally open contact-23 of K1 switch.
Another group normally open contact-47 of K switch 1 is connected the power supply of thermometer TC1 and time relay KT1 simultaneously in the connection of K1.
During practical implementation:
The workflow of delay controller is: when working automatically; After pressing SB3 (host-initiated) press button, SB5 (heating starting) press button, the selector switch of Q1 (manually automatically) is placed on the automated location, the selector switch of Q2 (time temperature control) is placed on the position of time; The die sinking actuating signal of injection machine will trigger delayer heating schedule; Mould begins heating, after the time that the arrival of mold heated time is set, breaks off heating schedule.When the die sinking signal triggering of next injection machine, delay controller carries out the timing heating to mould again.During manual work, press SB3 (host-initiated) press button, the selector switch of Q1 (manually automatically) is placed on the manual position, after the selector switch of Q2 (time temperature control) being placed on the position of time, pressing SB5 (heating starting) press button,
Delay controller carries out timing heating to mould.
The present invention does not relate to all identical with the prior art prior art that maybe can adopt of part and realizes.
Claims (2)
1. injection machine electric-control system 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 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); The normally open contact 5 of the normally closed interlock 3 of emergency stop switch (SB1) through 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 (KA6) overtemperature alarm; Connect the coil of A.C. contactor (KM0) host-initiated; And the normally open contact through A.C. contactor (KM0) carries out self-insurance to the startup contact 4,5 of the 3rd shutdown switch (SB3) start button; Reach the purpose of host-initiated, it is the power supply of getting the startup contact 5 of the 3rd shutdown switch (SB3) that electric heating starts, through 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 (KA5) heating starting, after the heater coil energising, its normally closed interlock adhesive; Described rotary switch control circuit comprises first rotary switch (Q1) and second rotary switch (Q2); First rotary switch (Q1) has two states: manually with automatic; It manually is the normally closed interlock 9 that passes through second rotary switch (Q2) through the normally closed interlock 3 of emergency stop switch (SB1); Crossing the normally open contact 10 of first rotary switch (Q1), connect the coil of first relay (KA1), is the normally closed interlock 9 that passes through second rotary switch (Q2) through the normally closed interlock 3 of emergency stop switch (SB1) automatically; Cross the normally closed interlock 10 of first rotary switch (Q1), connect the coil of second relay (KA2); Second rotary switch (Q2) also has two states: time and temperature control; A kind of is to do time-delay control to use; A kind of is to do ordinary temp control usefulness, during the coil electricity of the 3rd relay (KA3) as temperature control, during the 3rd relay (KA3) coil blackout as time control; 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) through the normally open contact 12 of second rotary switch (Q2), and time and temperature controlling state are switched; Described guardtime circuit comprises second relay (KA2), the 4th relay (KA4) the 7th relay K A7 and the time relay (KT0); Under automatic condition; The total time of heating receives the control of the 4th relay (KA4); The electric current that the normally closed interlock 3 of emergency stop switch (SB1) attracts is through the normally open contact 14 of normally open contact 13 to the 7th relays (KA7) of relay second (KA2), the coil of relay turn-on time (KT0), when the time relay get electric after the time relay pick up counting; After reaching setting-up time; The contact action upset of the time relay through the normally closed interlock 15 of the time relay (KT0), is connected the coil of the 4th relay (KA4); The coil of the 4th relay (KA4) get electric after, the normally open contact through its 13,14 pairs of the 7th relays of normally open contact (KA7) carries out self-insurance; Described overtemperature alarm circuit comprises some thermometers (KC); Each thermometer (KC) if Alarm contactor in have the contact of a table to connect; Will connect the coil 16 of the 6th relay (KA6), get the power supply that will break off host-initiateds after electric when the coil of the 6th relay (KA6) through the normally closed interlock 5,6 of the 6th relay (KA6); Described time control intensification circuit comprises very first time relay (KT1); Behind heating starting; Normally open contact 18 adhesives of the 5th relay (KA5) connect the normally closed interlock 22 of very first time relay (KT1) behind the normally closed interlock 21 that connects the 3rd relay (KA3) behind the normally open contact 20 of the normally open contact 19 of the normally open contact 20 of first relay (KA1) or second relay (KA2) and the 4th relay (KA4) and the normally open contact 23 of first switch (K1) is connected first A.C. contactor (KM1) of parallel connection and the coil power of second A.C. contactor (KM2); Described intensification control circuit comprises thermometer (TC1); The normally closed interlock 3 of emergency stop switch (SB1) links to each other with the normally open contact 23 of first switch (K1) through the normally open contact 22 and the back of serial connection the 3rd relay (KA3) and thermometer (TC1), links to each other with first A.C. contactor (KM1) of parallel connection and the coil power of second A.C. contactor (KM2) then.
2. the injection machine electric-control system that utilizes time control temperature according to claim 1 is characterized in that another group normally open contact 47 of described first switch (K1) links to each other with the power supply of thermometer (TC1) with very first time relay (KT1) simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110331308.0A CN102431138B (en) | 2011-10-27 | 2011-10-27 | Electronic control system of injection molding machine for controlling temperature by using time |
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| CN201110331308.0A CN102431138B (en) | 2011-10-27 | 2011-10-27 | Electronic control system of injection molding machine for controlling temperature by using time |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107443697A (en) * | 2017-09-29 | 2017-12-08 | 高滨 | A kind of plastic mould hot runner temperature controller |
| CN109049593A (en) * | 2018-07-13 | 2018-12-21 | 海天塑机集团有限公司 | A kind of safety return circuit of the 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 |
| CN113510912A (en) * | 2021-09-15 | 2021-10-19 | 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 |
| CN113778147A (en) * | 2021-07-23 | 2021-12-10 | 海天塑机集团有限公司 | Method and system for restraining current fluctuation by controlling current output |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113778147A (en) * | 2021-07-23 | 2021-12-10 | 海天塑机集团有限公司 | Method and system for restraining current fluctuation by controlling current output |
| CN113510912A (en) * | 2021-09-15 | 2021-10-19 | 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 |
| 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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