CN200972608Y - Multi-path thermal runner temp. controller - Google Patents
Multi-path thermal runner temp. controller Download PDFInfo
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- CN200972608Y CN200972608Y CN 200620126681 CN200620126681U CN200972608Y CN 200972608 Y CN200972608 Y CN 200972608Y CN 200620126681 CN200620126681 CN 200620126681 CN 200620126681 U CN200620126681 U CN 200620126681U CN 200972608 Y CN200972608 Y CN 200972608Y
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Abstract
A multi-way hot runner temperature controller comprises a sampling control module, a data processing module, an output module, a display module and a keyboard. The utility model is characterized in that the sampling control module comprises at least a four-way parallel input interface, a multi-way (at least four-way) analog switch circuit and an input signal amplifying circuit; the data processing module is a MCU micro-controller, the MCU micro-controller comprises a A/D convertor, a CPU and an output controller; the output module comprises an output isolation circuit, an output signal amplifying circuit and a multi-way (at least four-way) parallel output interface. Compared with the traditional single-way hot runner temperature controller, the utility model has four-way to twelve-way temperature control circuits, and moreover has small volume, high integration degree, accurate temperature control, high reliability, convenient operation, and is very suitable for the demand of the current large type hot runner mold with multiple temperature control points.
Description
Technical field
The utility model relates to a kind of hot flow path temperature controller of using on the mould of plastics in the injection moulding industry, particularly a kind of high-precision intelligent type multichannel hot flow path temperature controller.
Background technology
The hot flow path technology is the temperature control technology that is applied to a kind of advanced person of plastic injection mold cast flow passage system, its principle is by temperature controller and well heater the cast runner to be carried out thermal equilibrium control, the plastics that make the injector nozzle be sent to cast gate remain molten condition, do not need to solidify as waste material when each die sinking and take out, the melt that is trapped in the running gate system can be injected into die cavity next time when injecting.
In today of mould of plastics industry high speed development, hot runner mould does not have advantage such as waste material, and to be used producer by increasing mould selected with its production efficiency and production run, and wherein the quality of temperature controller is to realize the key of precise injection molding.Chinese patent CN2667541Y discloses the utility model technical scheme of " high-precision intelligent type hot flow path temperature controller ", although this scheme provide at that time a kind of can soft start, temperature control precision height, possess the hot flow path temperature controller of communication function and Presentation Function, but, be subjected to very big limitation in application facet because it is only applicable to the control of single channel temperature.Along with the maximization of hot runner mould and the increase of its temperature control point, drawbacks such as the volume of this traditional single channel hot flow path temperature controller is big, weight big, complex operation, the wasting of resources, poor reliability manifest day by day, can not satisfy the needs of large-scale now, many temperature control point hot runner mould.For this reason, the applicant has researched and developed a kind of multichannel hot flow path temperature controller.
Summary of the invention
The purpose of this utility model will provide a kind of and have the multidiameter delay control ability, and the hot flow path temperature controller of integrated level height, reliable operation, to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of multichannel hot flow path temperature controller, comprise controlling of sampling module, data processing module, output module, display module and keyboard, and its innovation is:
The controlling of sampling module comprises at least four tunnel parallel input interface, at least four tunnel multi-channel analog switch circuit, input signal amplifying circuit; Each road input port of described parallel input interface connects a thermopair respectively, and each road output port connects each road input port of multi-channel analog switch circuit respectively; The input end of the output termination input signal amplifying circuit of described multi-channel analog switch circuit;
Data processing module is a MCU microcontroller, and this MCU microcontroller comprises A/D converter, CPU, o controller; The input end of the output termination A/D converter of described input signal amplifying circuit; CPU has one group of gating signal to connect with the corresponding gating end of multi-channel analog switch circuit respectively; A/D converter, CPU, o controller connect in inner three buses of passing through of MCU microcontroller;
Output module comprises output isolation circuit, output signal amplification circuit, at least four tunnel parallel output interface; Described output isolation circuit constitutes by at least four road photoelectric isolating circuits are parallel, its each input end respectively with the corresponding connection of each output port of o controller, each output terminal respectively with the corresponding connection of each input end of output signal amplification circuit; Each output terminal of described output signal amplification circuit respectively with the corresponding connection of each input port of parallel output interface; Each output terminal of described parallel output interface is exported each road temperature control signals respectively.
Related content in the technique scheme is explained as follows:
1, in the such scheme, described multi-channel analog switch circuit adopts CD4051 chip or 74HC4051 chip; The input signal amplifying circuit adopts AD595 chip or AD594 chip; The MCU microcontroller adopts PIC18F6720 chip, PIC18F6620 chip or PIC18F6520, constitutes 〉=four tunnel ,≤eight tunnel temperature control loops with this.
2, in the such scheme, described MCU microcontroller adopts PIC18F8720 chip, PIC18F8620 chip or PIC18F8520, constitutes 〉=eight tunnel ,≤ten two tunnel temperature control loops with this.
3, in the such scheme, described output signal amplification circuit adopts the ULN2803 chip, constitutes eight road output signal amplification circuits with this.
4, in the such scheme, described thermopair is applicable to J type, K type, L type and R type equitemperature sensor, wherein, selects J type, K type the best.
Because technique scheme utilization, the utility model is compared separate unit hot flow path temperature controller with traditional single channel hot flow path temperature controller and is had 4～12 tunnel temperature control loops, and volume is small and exquisite, integrated level is high, temperature precise control, reliability height.So not only significantly reduced the volume and weight of temperature controller, and easy to operate, the needs of very suitable large-scale now, many temperature control point hot runner mould.
Description of drawings
Accompanying drawing 1 is the utility model theory diagram;
Accompanying drawing 2 is the utility model workflow diagram;
Accompanying drawing 3 is sampling of the utility model thermopair and interface circuit figure;
Accompanying drawing 4 is the utility model MCU circuit diagram;
Accompanying drawing 5 is the utility model output isolated drive circuit figure;
Accompanying drawing 6 is the utility model display circuit figure;
Accompanying drawing 7 is the utility model communicating circuit figure;
Accompanying drawing 8 is the utility model power circuit diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: a kind of eight road hot flow path temperature controllers, form by controlling of sampling module, data processing module, output module, display module, communication module, warning circuit, keyboard and power circuit.
The controlling of sampling module is seen Fig. 1, is made up of eight tunnel parallel input interfaces, eight path analoging switch circuit and input signal amplifying circuit.Physical circuit is seen Fig. 3, and eight path analoging switch circuit U 200 adopt the CD4051 chip, and input signal amplifying circuit U202 adopts the AD595 chip.Eight thermopairs meet eight input port X0～X7 of U200 respectively by eight tunnel parallel input interface (not shown)s, and thermopair is selected J type or K type.The output terminal X of U200 meets U202 input end-IN, output terminal VO, the FB output amplifying signal AIN of U202.
Data processing module is a MCU microcontroller referring to Fig. 1.Specifically see Fig. 4, this MCU microcontroller U400 adopts the PIC18F6720 chip, and U400 inside comprises A/D converter, CPU microprocessor, o controller.Above-mentioned output amplifying signal AIN meets the input port RA0/AN0 of U400.U400 produces port A, B, the C (see figure 3) that three multi-way switch control signal A, B, C meet U200 respectively from pin two 2,28,27, gating is one by one made in sampling to eight thermopairs, and the input port RA0/AN0 by U400 is input to U400 inside and carries out the A/D conversion.
Output module is seen Fig. 1, is made up of output isolation circuit, output signal amplification circuit, eight tunnel parallel output interfaces.Physical circuit is seen Fig. 5, and output isolation circuit constitutes by eight road photoelectric isolating circuits are parallel, and U400 produces the output that eight tunnel output control signals meet photoelectricity isolated tube OP100～OP107 respectively from pin one 1～18 and goes into end, and the photoelectricity isolated tube adopts TLP521.Output signal amplification circuit U100 adopts the ULN2803 chip.Eight road photoelectric isolating circuits are drawn IN1～IN8 port that eight road signals meet U100 respectively from 3DD1～3DD8, U100 produces interface 1～8 output of eight road temperature control signals by eight tunnel parallel output interface J100 from output port OUT1～OUT8, and eight tunnel parallel output interfaces adopt CON9.
Display module is seen Fig. 1, is made up of display output circuit and LCD display.See Fig. 6, display output circuit J400 adopts the ZJ-LCD chip.U400 produces pin one～8 that eight circuit-switched data shows signal (see figure 4)s meet J400 respectively from pin 49～55,58; U400 produces the pin 9～11,15,16,18 that six road display control signals meet J400 respectively from pin 43～48.The output of J400 connects the LCD LCD of 192*64 dot matrix.
Communication module is seen Fig. 7, is made up of integrated circuit U500 and interface J500, and integrated circuit U500 adopts the MAX487 chip, and interface J500 adopts the CON6 interface.The pin 4 of U400 is connected with the pin 4 of U500, and the pin 5 of U400 is connected with the pin one of U500, and the pin 6 of U400 is connected with the pin two, 3 of U500.
Warning circuit is seen Fig. 4, and the pin 8 generation alerting signals by U400 are placed on promotion warning output relay K400 through triode Q401.
Keyboard is seen Fig. 1, and it is connected on the pin two 9～36 of U400 as a kind of input operating device, sees shown in Figure 4.
Power circuit is seen Fig. 8, mainly is made of DC-DC step-down module U000 and DC-DC step-down module U001, and DC-DC step-down module U000 adopts LM2596-12, produces the output of 12V voltage; DC-DC step-down module U001 adopts LM2596-5, produces the output of 5V voltage.
The principle of work of present embodiment:
Referring to shown in Figure 2, leading portion is by eight thermopair collecting temperature signals, MCU microcontroller U400 produces port A, B, the C (see figure 3) that three multi-way switch control signal A, B, C meet U200 respectively from pin two 2,28,27, gating is one by one made in eight thermopair samplings, made eight orderly respectively same amplifying circuits of process of thermocouple signal carry out signal and amplify.Thermocouple signal is through obtaining the voltage signal of a 0-5V after amplifying, this signal is delivered to the built-in A/D converter of MCU microcontroller U400 again, carries out digital signal that analog to digital conversion obtains and directly delivers to the CPU computing unit of MCU microcontroller U400 and calculate for control and call.
The passage that MCU microcontroller U400 controls eight path analoging switch in chronological order switches, read the judgement of doing the thermopair model behind the temperature digital signal of this passage correspondence earlier as MCU microcontroller U400, select temperature to divide kilsyth basalt to table look-up according to the thermopair model result who judges, obtain the current temperature value of this passage.If current temperature value surpasses the overtemperature alarm scope of setting, temperature controller just reports to the police and cuts out output.If Current Temperatures does not surpass alarm temperature, temperature controller will be delivered to the PID computing unit to Current Temperatures and carry out PID calculating, PID calculates and finishes, a judgement is done to the result of calculation of PID again by system, whether judged result is in range of control, if in range of control then immediately this result is exported control as output numerical value; Result of calculation got 0 less than 0 o'clock if result of calculation runaways, and got 200 greater than 200 o'clock, with the numerical value that guarantees output control in the 0-200 scope.
The temperature controlling signal is the square wave of the change in duty cycle of a fixed cycle.This temperature controller is equally divided into 200 parts with the cycle of square wave, and the control result that PID calculates is corresponding 0-200 respectively, and 0 expression is all turn-offed, and promptly heater element does not heat; 100 expressions are half-open logical, i.e. heater element half-power heating; 200 expression standard-sized sheets are logical, i.e. the heater element heating with full power.The control end is a power component, for example: solid-state relay, bidirectional triode thyristor.(user provides for oneself) when temperature controller was done temperature sampling and PID calculating, display routine read a less important data presented in per 0.1 second and refreshes LCD Panel; Keyboard program read one time keyboard in per 0.1 second, if having key to be pressed this moment, just carried out this key value corresponding and handled.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (4)
1, a kind of multichannel hot flow path temperature controller comprises controlling of sampling module, data processing module, output module, display module and keyboard, it is characterized in that:
Sampling draws module and comprises at least four tunnel parallel input interface, at least four tunnel multi-channel analog switch circuit, input signal amplifying circuit; Each road input port of described parallel input interface connects a thermopair respectively, and each road output port connects each road input port of multi-channel analog switch circuit respectively; The input end of the output termination input signal amplifying circuit of described multi-channel analog switch circuit;
Data processing module is a MCU microcontroller, and this MCU microcontroller comprises A/D converter, CPU, o controller; The input end of the output termination A/D converter of described input signal amplifying circuit; CPU has one group of gating signal to connect with the corresponding gating end of multi-channel analog switch circuit respectively; A/D converter, CPU, o controller connect in inner three buses of passing through of MCU microcontroller;
Output module comprises output isolation circuit, output signal amplification circuit, at least four tunnel parallel output interface; Described output isolation circuit constitutes by at least four road photoelectric isolating circuits are parallel, its each input end respectively with the corresponding connection of each output port of o controller, each output terminal respectively with the corresponding connection of each input end of output signal amplification circuit; Each output terminal of described output signal amplification circuit respectively with the corresponding connection of each input port of parallel output interface; Each output terminal of described parallel output interface is exported each road temperature control signals respectively.
2, multichannel hot flow path temperature controller according to claim 1 is characterized in that: described multi-channel analog switch circuit adopts CD4051 chip or 74HC4051 chip; The input signal amplifying circuit adopts AD595 chip or AD594 chip; The MCU microcontroller adopts PIC18F6720 chip, PIC18F6620 chip or PIC18F6520, constitutes 〉=four tunnel ,≤eight tunnel temperature control loops with this.
3, multichannel hot flow path temperature controller according to claim 1 is characterized in that: described MCU microcontroller adopts PIC18F8720 chip, PIC18F8620 chip or PIC18F8520, constitutes 〉=eight tunnel ,≤ten two tunnel temperature control loops with this.
4, multichannel hot flow path temperature controller according to claim 1 is characterized in that: described output signal amplification circuit adopts the ULN2803 chip, constitutes eight road output signal amplification circuits with this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620126681 CN200972608Y (en) | 2006-10-31 | 2006-10-31 | Multi-path thermal runner temp. controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620126681 CN200972608Y (en) | 2006-10-31 | 2006-10-31 | Multi-path thermal runner temp. controller |
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| CN200972608Y true CN200972608Y (en) | 2007-11-07 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196422B (en) * | 2007-12-19 | 2011-12-07 | 济南钢铁股份有限公司 | Eight-channel billet temperature measuring instrument based on K type thermocouple and water container cooperated with it |
| CN102410883A (en) * | 2011-11-16 | 2012-04-11 | 江苏正佰电气有限公司 | Switching equipment temperature rise detection system |
| CN102920444A (en) * | 2012-11-20 | 2013-02-13 | 浙江大学 | Portable device and method for simultaneously detecting skin temperature, skin resistance and pulse |
| CN103196628A (en) * | 2013-03-08 | 2013-07-10 | 成都倍特科技有限责任公司 | Vacuum degree on-line detecting system |
| CN103345282A (en) * | 2013-06-19 | 2013-10-09 | 杭州电子科技大学 | Intermediate frequency furnace intelligent temperature control system based on STM32 |
| CN103558787A (en) * | 2013-11-01 | 2014-02-05 | 哈尔滨工业大学 | Multichannel configurable isolated scanning A/D module |
| CN104359577A (en) * | 2014-12-09 | 2015-02-18 | 南京化工职业技术学院 | Thermocouple temperature inspecting instrument |
| CN104458042A (en) * | 2014-12-09 | 2015-03-25 | 南京化工职业技术学院 | Automatic tester for temperature of thermocouple |
| CN104571200A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electricity multi-channel controller |
| CN104552855A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electric multi-channel voltage controller |
| CN104571201A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electricity multi-channel temperature controller |
| CN104597941A (en) * | 2014-12-31 | 2015-05-06 | 李久伦 | Main controller of hot runner temperature control system |
| CN109787536A (en) * | 2019-03-18 | 2019-05-21 | 山东星火科学技术研究院 | A kind of wind light mutual complementing power generation power supply unit |
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2006
- 2006-10-31 CN CN 200620126681 patent/CN200972608Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196422B (en) * | 2007-12-19 | 2011-12-07 | 济南钢铁股份有限公司 | Eight-channel billet temperature measuring instrument based on K type thermocouple and water container cooperated with it |
| CN102410883A (en) * | 2011-11-16 | 2012-04-11 | 江苏正佰电气有限公司 | Switching equipment temperature rise detection system |
| CN102920444A (en) * | 2012-11-20 | 2013-02-13 | 浙江大学 | Portable device and method for simultaneously detecting skin temperature, skin resistance and pulse |
| CN103196628A (en) * | 2013-03-08 | 2013-07-10 | 成都倍特科技有限责任公司 | Vacuum degree on-line detecting system |
| CN103345282B (en) * | 2013-06-19 | 2015-05-27 | 杭州电子科技大学 | Intermediate frequency furnace intelligent temperature control system based on STM32 |
| CN103345282A (en) * | 2013-06-19 | 2013-10-09 | 杭州电子科技大学 | Intermediate frequency furnace intelligent temperature control system based on STM32 |
| CN103558787A (en) * | 2013-11-01 | 2014-02-05 | 哈尔滨工业大学 | Multichannel configurable isolated scanning A/D module |
| CN103558787B (en) * | 2013-11-01 | 2015-10-28 | 哈尔滨工业大学 | Scan A/D the module of the configurable isolation of hyperchannel |
| CN104359577A (en) * | 2014-12-09 | 2015-02-18 | 南京化工职业技术学院 | Thermocouple temperature inspecting instrument |
| CN104458042A (en) * | 2014-12-09 | 2015-03-25 | 南京化工职业技术学院 | Automatic tester for temperature of thermocouple |
| CN104552855A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electric multi-channel voltage controller |
| CN104571201A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electricity multi-channel temperature controller |
| CN104597941A (en) * | 2014-12-31 | 2015-05-06 | 李久伦 | Main controller of hot runner temperature control system |
| CN104571200A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electricity multi-channel controller |
| CN109787536A (en) * | 2019-03-18 | 2019-05-21 | 山东星火科学技术研究院 | A kind of wind light mutual complementing power generation power supply unit |
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Granted publication date: 20071107 Termination date: 20091130 |