CN103317692A - Mould temperature controller with small-sized boiler - Google Patents
Mould temperature controller with small-sized boiler Download PDFInfo
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- CN103317692A CN103317692A CN2012100834502A CN201210083450A CN103317692A CN 103317692 A CN103317692 A CN 103317692A CN 2012100834502 A CN2012100834502 A CN 2012100834502A CN 201210083450 A CN201210083450 A CN 201210083450A CN 103317692 A CN103317692 A CN 103317692A
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Abstract
The invention provides a temperature controller which can control a rapid change of an injection mould temperature. The controller mainly includes: a small-sized steam boiler, a cooling water pump, a cooling water reservoir, a control unit, a control valve, a filter, pipelines and other critical components. Under regulation of the control unit, the above components work in harmony, a change range of the mould temperature (40 DEG C-150 DEG C) is precisely controlled, and a plastic part product with high quality appearance is obtained. When working, firstly the mould temperature controller controls the internal boiler to produce high-temperature high-pressure steam, the steam is injected to a heating pipeline inside a mould through a steam pipeline connected with the controller and the injection mould, the mould temperature is rapidly evaluated to a predetermined value, and then the controller controls an injection machine to carry out an injection process and a pressure maintaining process. When cooling, the controller starts the cooling water pump to inject low temperature cooling water into a cooling pipeline of the mould, and the mould is rapidly cooled to a predetermined value. The temperature controller has the advantages that the small-sized steam boiler is arranged inside the controller, and thereby avoiding a production need of a special boiler and current situations that the special boiler has complex pipeline installation, is far away from a production site, and has higher energy consumption. The controller is easy to install, can realize real-time control of the mould temperature, meets requirements of plastic parts for a high mould temperature, also saves energy sources, and can produce a high-quality subassembly with a bright surface.
Description
Technical field
The present invention relates to the mould temperature controller with boiler, can realize the fast variation of accurate control mold temperature, satisfy the requirement of the high-quality outward appearance product of injection moulding, belong to injection mold temperature control technology field.
Background technology
Injection molding process is complicated, and the shaped article surface easily produces weld mark, current mark, floats the various defectives such as fine, has both affected the presentation quality of product, has weakened again the mechanical property of product, brings hidden danger for the normal use of product.
Mainly improve the shaped article surface quality by follow-up spraying coating process or raising mold temperature in producing at present, the former had both improved the production cost of goods, easily caused again serious environmental pollution, and was incompatible with the current social expanding economy; The quality that the latter improves shaped article by the temperature that improves mould is current process commonly used.But evenly, easily controlling mold temperature how fast, is to need the key issue that solves in the Shooting Technique.
Publication number is that the Chinese patent of CN201025009Y discloses a kind of " water circulation mould temperature controller ", the temperature control technology of this injection mold is to utilize the aqueous water of high temperature that mould is heated, then utilize low-temperature cooling water that mould is cooled off, corresponding medium circulation loop and control valve are arranged in the temperature control equipment.This device is to utilize high-temperature water that mould is heated, but because the heating-up temperature of water is restricted, and the heating-up temperature of mould is restricted, and, utilize the high-temperature water heating, in case the phenomenon of leaking is very easily scalded the field personnel, there is potential safety hazard.
The Chinese patent of publication number CN101249715A provides a kind of electrical heating type temperature control device of high-gloss injection mold, the temperature control technology of this injection mold is to utilize the thermocouple that is imbedded in mould inside that mould is heated, then utilize low-temperature cooling water that mould is cooled off, this device is simple to operate, easily realizes.But when utilizing this device heating mould, the mold cavity surface temperature distribution is inhomogeneous, and fatigue crack easily occurs mould, causes the mold use life-span shorter, and the electrical bar that is imbedded in mould inside easily damages, and is difficult to the shortcoming of taking out from mould after the damage.
The Chinese patent of publication number CN101100106A provides the temperature control equipment of a kind of plastic mould rapid heating and cooling, this device is by the heat mediums such as the water vapour of outside, hot water, deep fat being introduced workshop, then realizing the purpose of heating mould by the unified regulation and control of control device.This kind heating means exist heat medium source (such as steam boiler) from the scene away from, the energy consumption that exists because of the pipeline heat radiation is higher; Boiler Steam pipeline cost is installed higher, the formality complexity is not easy to the problems such as medium-sized and small enterprises use.
Summary of the invention
There are the problems such as poor safety performance, cost and energy consumption height for existing injection mold temperature control equipment, the invention provides that a kind of efficiency of heating surface is high, the equal low mould temperature controller with miniature boiler of even energy consumption of heating effect, utilize this controller, controlled molding jig reaches predetermined temperature fast, produces the product that obtains high-quality outward appearance.
A kind of mould temperature controller with miniature boiler comprises the critical components such as small size steam boiler, cooling water pump, cooling water reservoir, control module, by-pass valve control, die entrance pipeline, mould outlet pipeline, compressed air line, filter and pipeline, its steam pipework, cooling water pipeline and compressed air line all are connected with the die entrance pipeline, are connected with steam pressure regulator valve, steam control valve and filter in the steam pipework; Be connected with water pump, cooling water control valve, filter in the cooling water pipeline; Connecting control valve, pressure regulator valve and filter in the compressed air line is connected and is connected with outside air compressor by pipeline; Die entrance and mould outlet pipeline all are connected with mould, are provided with temperature sensor in the mould; Each control valve all is connected with control module by signal line; Control module adopts Programmable Logic Controller PLC; Control valve adopts pneumatic angle pedestal valve; Water pump adopts booster pump.
The heating of mould is supplied with by the water vapour that steam boiler provides, and the external pipeline of steam boiler is installed pressure regulator valve and control valve, and the steam pressure that steam boiler provides is at 0.6-1.2MPa, and the temperature of steam is at 150 ℃-170 ℃.
The heating period of mould, steam boiler starts, and produces high-temperature high-pressure steam, and high temperature and high pressure steam is passed into mould inside by steam pipework, after the effect of realization heating mould, is liquefied as water by reclaim line and gets back to the external refrigeration tower, for recycling.The pipeline that steam enters injection mold is provided with by-pass valve control, and the control module control valve opens and closes in real time.
The cooling stage of mould, control module starts high-pressure hydraulic pump, and cooling water pump can provide the pressure of 0.3-0.5MPa, and the temperature of cooling water is at 10 ℃-20 ℃.The control water at low temperature enters mould inside by cooling line, realizes the effect of quick cooling die.Water at low temperature enters into the cooling tower of controller outside, for recycling by reclaim line after the mould inside circulation.Cooling water enters the pipeline of injection mold and the reclaim line of cooling water is provided with by-pass valve control, and the control module control valve opens and closes in real time.
Description of drawings
Accompanying drawing is structural principle schematic diagram of the present invention.
Among the figure: 1, steam boiler, 2, air compressor, 3, cooling tower, 4, ball valve stop valve, 5, water pump, 6, water inlet control valve, 7, water receiver, 8, temperature controller, 9, water-returning control valve, 10, injection machine, 11, injection mold, 12, thermocouple, 13, filter, 14, compressed air control valve, 15, steam control valve, 16, steam pressure regulator valve, 17, air pressure-adjusting valve
The specific embodiment
As shown in drawings, solid line is pipeline among the figure, long dotted line is control signal, and temperature controller 8 of the present invention mainly comprises: components and parts and the pipelines such as steam, cooling water, compressed air, die entrance and mould outlet such as 1 steam boiler, 5 water pumps, 7 water receivers, control module and control valve.Steam boiler 1 connects steam pressure regulator valve 16, filter and steam control valve 15 successively.Controller external refrigeration tower is connected with water pump 5, and water pump 5 connects filter and cooling water control valve 6.Controller extraneous air compressor is connected successively with its inner air pressure regulator valve, filter and compressed air control valve.Water receiver 7 is connected with the mould outlet pipeline.Temperature sensor 12 is installed in the injection mold 11.Each control valve and temperature sensor all are connected with control module by holding wire.
When injection moulding begins, at first start the water vapour that steam boiler obtains predetermined pressure and temperature, open mould, the die sinking signal that control module obtains injection machine 10 feedbacks sends OPEN to steam control valve 15, make high steam enter fast injection mold 11 by filter 13 and die entrance pipeline, realize mold heated.The water vapour that flows out from mould becomes aqueous water by 7 coolings of mould outlet pipeline inflow water collector, and then aqueous water flows into 3 coolings of external refrigeration tower, in order to recycle.
When injection mold 11 temperature reached requirement numerical value, temperature sensor 12 was passed to control module with signal, and control module sends shutdown signal to steam control valve 15, sent injectable signal to injection machine 10 simultaneously.After injection is complete, in the pressurize later stage, control module will be accepted the signal of injection machine 10 feedbacks, send signal to water pump 5, cooling water control valve 6 and water-returning control valve 9, start water pump and open cooling water control valve 6 and water-returning control valve 9, allow cooling water enter mould 11 by filter and die entrance pipeline, begin mould 11 is cooled off.Cooling water by mould 11 is got back to external refrigeration tower 3 and is realized cooling by the mould outlet pipeline water-returning control valve of flowing through, in order to recycle.
When temperature that mould 11 is cooled to require, inner temperature sensor 12 is passed to control module with signal, and control module sends signal to cooling water control valve 6, closes this control valve, sends OPEN to compressed air control valve 14 simultaneously.After compressed air control valve 14 was opened, compressed air entered mould by filter and die entrance pipeline, and the cooling water in the mould is all blown out, and the cooling water that blows out and compressed air are got back to outside cooling tower equally.After cooling water in mould 11 all blows out, but control module sends the die sinking signal to injection machine 10, sends out code to water-returning control valve simultaneously.When injection machine 10 die sinking, control module receives signal and automatically carries out next one circulation.
Claims (4)
1. mould temperature controller with miniature boiler, it is characterized in that: this mould temperature controller comprises the critical components such as small size steam boiler, cooling water pump, cooling water reservoir, control module, by-pass valve control, die entrance pipeline, mould outlet pipeline, compressed air line, filter and pipeline, steam pipework, cooling water pipeline and compressed air line all are connected with the die entrance pipeline, are connected with steam pressure regulator valve, steam control valve and filter in the steam pipework; Be connected with water pump, cooling water control valve, filter in the cooling water pipeline; Connecting control valve, pressure regulator valve and filter in the compressed air line is connected and is connected with outside air compressor by pipeline; Die entrance and mould outlet pipeline all are connected with mould, are provided with temperature sensor in the mould; Each control valve all is connected with control module by signal line; Control module adopts Programmable Logic Controller PLC; Control valve adopts pneumatic angle pedestal valve; Water pump adopts booster pump.
2. the mould temperature controller with miniature boiler according to claim 1 is characterized in that: the water vapour supply that the heating of mould is provided by steam boiler, external pipeline installation pressure regulator valve and the control valve of steam boiler.
3. the mould temperature controller with miniature boiler according to claim 1, it is characterized in that: the pressure of the steam that steam boiler provides is at 0.6-1.2MPa, and the temperature of steam is at 150 ℃-170 ℃.
4. the mould temperature controller with miniature boiler according to claim 1, it is characterized in that: cooling water pump can provide the pressure of 0.3-0.5MPa, and the temperature of cooling water is at 10 ℃-20 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210083450.2A CN103317692B (en) | 2012-03-20 | 2012-03-20 | A kind of die temperance control device with miniature boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210083450.2A CN103317692B (en) | 2012-03-20 | 2012-03-20 | A kind of die temperance control device with miniature boiler |
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| Publication Number | Publication Date |
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| CN103317692A true CN103317692A (en) | 2013-09-25 |
| CN103317692B CN103317692B (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210083450.2A Active CN103317692B (en) | 2012-03-20 | 2012-03-20 | A kind of die temperance control device with miniature boiler |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082482A (en) * | 2014-05-23 | 2015-11-25 | 陈南吉 | Acceleration and pressurization energy saving device for injection molding machine |
| CN106493926A (en) * | 2016-12-08 | 2017-03-15 | 川田机械制造(上海)有限公司 | New die heater and its realize control method that boost pressure and temperature match |
| CN106541546A (en) * | 2016-12-07 | 2017-03-29 | 李晓光 | A kind of fast temperature control method of temperature control injection mold |
| CN107457963A (en) * | 2017-09-14 | 2017-12-12 | 南通市众惠模具有限公司 | A kind of injection mold of conveniently regulating and controlling temperature |
| CN110815869A (en) * | 2019-12-02 | 2020-02-21 | 常州曼淇威轨道交通设备有限公司 | Forming system and forming method of carbon fiber prepreg product |
| CN114074452A (en) * | 2020-08-21 | 2022-02-22 | 汉达精密电子(昆山)有限公司 | Vapor compressed gas combined rapid cooling and rapid heating system and method |
Citations (4)
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| GB2301059A (en) * | 1995-05-24 | 1996-11-27 | Ford Motor Co | Resin transfer moulding with controlled heating of resin |
| CN101157267A (en) * | 2007-11-02 | 2008-04-09 | 山东大学 | A attemperation system of highlight weld mark-free plastic mould |
| CN202716448U (en) * | 2012-03-20 | 2013-02-06 | 浙江师范大学 | Mold temperature controller with small boiler |
| JP5367286B2 (en) * | 2008-03-25 | 2013-12-11 | 三菱重工プラスチックテクノロジー株式会社 | Mold heating / cooling control method and apparatus |
-
2012
- 2012-03-20 CN CN201210083450.2A patent/CN103317692B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2301059A (en) * | 1995-05-24 | 1996-11-27 | Ford Motor Co | Resin transfer moulding with controlled heating of resin |
| CN101157267A (en) * | 2007-11-02 | 2008-04-09 | 山东大学 | A attemperation system of highlight weld mark-free plastic mould |
| JP5367286B2 (en) * | 2008-03-25 | 2013-12-11 | 三菱重工プラスチックテクノロジー株式会社 | Mold heating / cooling control method and apparatus |
| CN202716448U (en) * | 2012-03-20 | 2013-02-06 | 浙江师范大学 | Mold temperature controller with small boiler |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105082482A (en) * | 2014-05-23 | 2015-11-25 | 陈南吉 | Acceleration and pressurization energy saving device for injection molding machine |
| CN106541546A (en) * | 2016-12-07 | 2017-03-29 | 李晓光 | A kind of fast temperature control method of temperature control injection mold |
| CN106541546B (en) * | 2016-12-07 | 2019-03-22 | 李晓光 | A kind of fast temperature adjusting method of temperature control injection mold |
| CN106493926A (en) * | 2016-12-08 | 2017-03-15 | 川田机械制造(上海)有限公司 | New die heater and its realize control method that boost pressure and temperature match |
| CN106493926B (en) * | 2016-12-08 | 2019-07-16 | 川田机械制造(上海)有限公司 | The control method that die heater and its realization boost pressure and temperature match |
| CN107457963A (en) * | 2017-09-14 | 2017-12-12 | 南通市众惠模具有限公司 | A kind of injection mold of conveniently regulating and controlling temperature |
| CN110815869A (en) * | 2019-12-02 | 2020-02-21 | 常州曼淇威轨道交通设备有限公司 | Forming system and forming method of carbon fiber prepreg product |
| CN114074452A (en) * | 2020-08-21 | 2022-02-22 | 汉达精密电子(昆山)有限公司 | Vapor compressed gas combined rapid cooling and rapid heating system and method |
| CN114074452B (en) * | 2020-08-21 | 2024-03-19 | 汉达精密电子(昆山)有限公司 | Vapor compressed gas combined quenching and rapid heating system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103317692B (en) | 2016-12-14 |
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