CN101722638B - Integrative system capable of controlling quick temperature change of injection mould - Google Patents
Integrative system capable of controlling quick temperature change of injection mould Download PDFInfo
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- CN101722638B CN101722638B CN2010103001934A CN201010300193A CN101722638B CN 101722638 B CN101722638 B CN 101722638B CN 2010103001934 A CN2010103001934 A CN 2010103001934A CN 201010300193 A CN201010300193 A CN 201010300193A CN 101722638 B CN101722638 B CN 101722638B
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Abstract
The invention relates to a steam generating plant, in particular to a steam heating system capable of controlling quick temperature change of an injection mould. Specially, the modules, such as a steam boiler, a steam storage, a steam controller and the like are integrated so as to obtain a resin polymer injection moulding product with high quality appearance. The integrative system comprises a steam generating and transporting system, a cooling water delivery line, a compressed air cleaning passage, a guiding gas passage, a control unit 23, a programmable processor, an operator interface and a distribution box 7. The invention has the advantages that an electrical heating steam generator in the device of the invention can fully utilize the heat of condensate water in the steam storage and utilize the heat of system backwater to heat a heat exchanger in a water-replenishing tank so as to improve water temperature in the water-replenishing tank, thus greatly reducing energy consumption. For example, when the front frame of 47'' LCD TV is produced, the product of the invention can lower production energy consumption by 50% and properly shorten shaping period if compared with a large-volume boil steam generator.
Description
Technical field
The present invention relates to steam raising plant; Particularly a kind of system of integrated form control quick temperature change of injection mold; Be exactly to pass through to realize the integrated of modules such as steam boiler, steam accumulator and steam controller concretely, thereby at the resinous polymer injection-molded product that obtains high-quality apperance.
Background technology
When the plastic products of injection mo(u)lding high-quality apperance,, be a kind of process commonly used through to the fast-changing control of mold temperature.Because steam special thermodynamic characteristic, easy enforcement and technology controlling and process are stable, adopting steam is the most general as heat medium.The open Chinese patent ZL200720075904.6 that authorizes disclosed a kind of for obtaining the device of the control injection mold variations in temperature that the high-quality apperance injection molding part develops like on December 24th, 2008; This device is developed for client that combustion gas, oil-fired steam boiler are installed for the applicant; This matching requirements user has large-scale steam boiler, storage vapour device and jet chimney etc.; The problem that exists in practice is: the one, and, big-and-middle-sized oil-burning gas-fired boiler all requires special boiler room, and is far away from the production scene; Generally all need very long jet chimney could steam be inserted the steam controller, the energy consumption brought of pipeline heat radiation is just inevitable like this; The 2nd, because the heat radiation of storage vapour device is inevitable and in storage vapour device, form condensed water, and condensed water can only regularly be got rid of through blowoff valve, takes away great amount of heat, and can not recycle; The 3rd,, when adopting described steam to carry out technology controlling and process,, directly drained or mixed with cooling water to not being recovered through the steam behind the mould, cause great energy waste; When adopting described steam to carry out technology controlling and process,, directly drained or mixed, caused great energy waste with cooling water to not being recovered through the steam behind the mould; The 4th,, the steam of a large-scale steam boiler production can offer respectively through a plurality of steam controllers and overpay the injection mold use.If but when having only one pair of injection mold to produce, also must open large-scale steam boiler, this would not only improve operating cost, and the control device adds energy consumption inevitably; The 5th,, the formality that large-scale steam boiler is installed is complicated, in the use restriction many, cause the user inconvenient.
Summary of the invention
The present invention seeks to solve the deficiency of technique scheme, a kind of steam heater of controlling quick temperature change of injection mold is provided, this device is a kind of integrated system, in use significantly reduces energy resource consumption simultaneously.The object of the invention realizes, is accomplished by following technical scheme: the present invention includes:
A, steam generation and induction system: comprise the vapour source that is connected in series in order and forms with pipeline by between the electric heating steam generator (6) of water supply tank (9), one or more parallel connections, steam accumulator (2) three; Steam accumulator (2) is arranged on the top of electric heating steam generator (6); Each steam generator (6) all has two pipelines to be connected with steam accumulator (2), and one of them pipeline that comprises check valve (5) directly is connected the bottom of steam accumulator (2); Through pipeline steam is connected to one first pipeline tie point (101) from the delivery outlet (100) of steam accumulator (2), between the first pipeline tie point (101), one second pneumatic stopping valve (19) is set at delivery outlet (100); , and one second pipeline tie point (102) is set therein and cleans compressed air and be connected to connecting with pipeline the system media output interface (25) from pipeline tie point (101); The interface (16) that system media is returned interface (26) and be built in the heat exchanger (12) in the water supply tank (9) through pipeline is connected; Between pipeline on one the 4th pneumatic stopping valve (21) is set, and return at the 4th pneumatic stopping valve (21) and system media one the 3rd pipeline tie point (103) be set on the pipeline between the interface (26); Another interface (15) of heat exchanger (12) is connected to system media discharging interface (27) through pipeline, and one the 4th pipeline tie point (104) is set on the pipeline therein; Between the 3rd pipeline tie point (103) and the 4th pipeline tie point (104), connect, and one the 5th pneumatic stopping valve (22) is set with pipeline; Return between the interface (26) through pipeline at system media output interface (25) and system media and to be connected with medium channel in the injection mold (28);
B and cooling water transfer pipeline comprising cooling water source interface (13), water pump (17), first pneumatic stopping valve (18), are linked in sequence until the first pipeline tie point (101);
C and compressed air cleaning path and pilot gas path; Comprising being linked in sequence through pipeline by compressed air supply (14), the 3rd pneumatic stopping valve (20), the outlet of (20) of the 3rd pneumatic stopping valve is connected with the second pipeline tie point (102) through pipeline; And compression control is being connected respectively on the pilot gas interface of first pneumatic stopping valve (18), second pneumatic stopping valve (19), the 3rd pneumatic stopping valve (20), the 4th pneumatic stopping valve (21), the 5th pneumatic stopping valve (22) with pipeline on the pipeline between compressed air supply (14) and the 3rd pneumatic stopping valve (20);
D and control module (23); By (having; Deletion) programmable processor and operation interface are formed; Be connected with communication cable with the motor of first pneumatic stopping valve (18), second pneumatic stopping valve (19), the 3rd pneumatic stopping valve (20), the 4th pneumatic stopping valve (21), the 5th pneumatic stopping valve (22), water pump (17); And be connected the exchange cycles signal with the control system (24) of injection moulding machine, also with in being arranged on mould (28) be connected near the die cavity/temperature sensor (29) on surface, core chamber and receive temperature signal;
E and distribution box (7) arrive electric heating steam generator (6), the motor of water pump (17), control module (23) with power delivery respectively through cable.
The described pipeline length that steam is connected to one first pipeline tie point 101 from the delivery outlet 100 of steam accumulator 2 is between 0.3-1.5m; Described steam accumulator 2 comprises safety valve 3, steam pressure gauge 4 and output interface 100; Described steam accumulator 2 comprises safety valve 3, steam pressure gauge 4 and output interface 100; Described water supply tank 9 comprises into water interface 10, switch 11 and built-in heat exchanger 12, and wherein water inlet 10 is connected with cooling water source interface 13 through pipeline.
Advantage of the present invention is; Because the interior heat exchanger of heat water supply tank that the electric heating steam generator in apparatus of the present invention can make full use of the heat of condensed water in the steam memory and utilize system's backwater; Thereby the water temperature in the raising water supply tank can significantly reduce energy resource consumption." frame before the LCD TV compares with the large-sized boiler steam generator, uses product of the present invention, and energy consumption reduces by 50%, and molding cycle also has suitable shortening such as producing 47.
Description of drawings
Accompanying drawing 1 structural representation of the present invention;
Specific embodiments
Under combine accompanying drawing that technical characterictic of the present invention and correlated characteristic thereof are done further to detail:
Show that like accompanying drawing 1 label in the accompanying drawing is represented respectively: the chassis frame of 1-integrated system, 2-steam accumulator, 3-safety
Valve; The 4-steam pressure gauge; The 5-check valve; The 6-electric heating steam generator; The 7-distribution box; The 8-feed cable; 9-water supply tank; The 10-water inlet; The 11-switch; The 12-heat exchanger; 13-cooling water source interface; 14-compressed air source interface; 15-heat exchanger interface; 16-heat exchanger interface; The 17-water pump; 18-first pneumatic stopping valve; 19-the second pneumatic stopping valves; 20-the 3rd pneumatic stopping valve; 21-the 4th pneumatic stopping valve; 22-the 5th pneumatic stopping valve; The 23-control module; 24-injection moulding machine control system; 25-system media output interface; The 26-system media returns interface; 27-system media discharging interface; The 28-injection mold; The 29-temperature sensor; 100-steam accumulator steam outlet; The 101-first pipeline tie point; The 102-second pipeline tie point; 103-the 3rd pipeline tie point; 104-Di, four pipeline tie points.
The embodiment of the invention comprises being connected in series by electric heating steam generator of water supply tank 9 and two parallel connections 6 and steam accumulator 2 usefulness pipelines and forms; Each steam generator 6 all has two pipelines to be connected with steam accumulator 2; One of them pipeline that comprises check valve 5 directly is connected on the steam accumulator 2; Steam accumulator 2 is arranged on the upper end of electric heating steam generator 6; Make the condensed water in the memory 2 can rely in gravity current to the electric heating steam generator 6, be provided with heat exchanger 12 in the water supply tank 9.The use of present embodiment is 47 with article of manufacture, and " the LCD TV front plane frame is an example, and injection mold 28 is a cavity mould, is provided with four temperature sensors 29 near appearance surfaces; And the medium channel in the mould allows steam, cooling water and compressed air to pass through smoothly, with the mold cavity surface of Fast Heating and cooling die.Adopt 2 or 5 electric heating steam generators 6 that installation power is 24kW, be in parallel installed with on a chassis frame; Every electric heating steam generator is all according to the pressure spot of setting operation automatically.At the back side of steam generator 6, hang a water supply tank 9, comprise water inlet 10, switch 11, built-in heat exchanger 12, water supply tank is connected respectively with every steam generator 6, and the water of higher temperature is provided.Steam accumulator 2 is placed at top at steam generator, contains safety valve 3, steam pressure gauge 4 and delivery outlet 100; All there are two pipelines to be connected between steam accumulator 2 and each steam generator 6; One of them pipeline is used for the steam that steam generator 6 is produced is delivered to steam accumulator 2; And another one contains the bottom that the pipeline of check valve 5 is directly connected to steam accumulator 2; Be used for the high-temperature condensation water of steam accumulator 2 is drawn back steam generator, reduce the consumption and the energy consumption of water.And pass through pneumatic stopping valves 19 from steam outlet 100 is 0.5 meter to the pipeline connection length of the first pipeline tie point 101 again; Be directly connected to system media output interface mouth 25 then, but between the first pipeline tie point 101 and delivery outlet 25, one second pipeline tie point 102 be set, be used for introducing cleaning compressed air; And output interface 25 is connected with pipeline with the medium channel import of injection mold 28, and system media returns interface 26 and is connected with the medium channel outlet of injection mold 28.The steam that returns from mould is along pipeline, through the 4th pneumatic stopping valve 21 and heat exchanger 12, be discharged to the circulation cooling tower system of factory through system media discharging interface then.During steam process heat exchanger 12, can great amount of heat be passed to and carry out preheating in the cold water that to produce steam, and the heat that remains in from the steam that mould returns has been utilized once more.The water inlet 10 of water supply tank is connected with cooling water source interface 13 through pipeline, and for improving the efficient of mould, cooling water source is preferably through the softening cooling water of handling.Cooling water source interface 13 is connected to the first pipeline tie point 101 through pipeline, water pump 17, first pneumatic stopping valve 18 simultaneously; With the path UNICOM of above-mentioned steam, but can realize that in different state different time is sent to heating or cooling die in the medium channel of mould through controlling first pneumatic stopping valve 18 and second pneumatic stopping valve 19; Cooling water is through behind the medium channel of mould, and temperature is lower, and the effect that gets into heat exchanger 12 is little, maybe be to the water temperature counter productive in the water supply tank, and therefore returning interface 26 at system media is provided with the 4th pneumatic stopping valve 21 between the interface 16 of heat exchanger 12; At the 4th pneumatic stopping valve 21 with return one the 3rd pipeline tie point 103 is set between the interface 26, between another interface 15 to system media discharging interface 27 of heat exchanger 12, the 4th pipeline tie point 104 is set; The 3rd pipeline tie point 103 and the 4th pipeline tie point 104 usefulness pipelines are coupled together, and one the 5th pneumatic stopping valve 22 is set therein; Through the unlatching and the shut-in time of control the 4th pneumatic stopping valve 21 and the 5th pneumatic stopping valve 22, realize residual can being fully utilized of returning of steam like this.In the operational version of technology of the present invention, the compressed air one side is as the pilot gas of pneumatic stopping valve; Be to use gas on the other hand, be used for before logical Steam Heating in the medium channel of mould 28, the cooling water in the mould being blown out, avoid steam in water, to produce the quick-fried and big defective of energy consumption of vapour as technology.Therefore pass through compressed air source interface 14, the 3rd pneumatic stopping valve 20 in the operational version of the present invention, compressed air is connected to the second pipeline tie point 102, be used for the technology cleaning.In addition, between compressed air source interface 14 and the 3rd pneumatic stopping valve 20, compression control is connected on the pilot gas interface of each pneumatic stopping valve, as the switch drive source of the gas of each pneumatic stopping valve through pipeline.And will be discharged according to the path of cooling water from air or the air-water mixture that mould returns.In occupation mode of the present invention, control module 23 adopts PLC and liquid crystal touch screen operation interface.The PLC system sends the switch of 5 pneumatic stopping valves of commands for controlling through with the communication of the control system 24 of injection moulding machine with accept the observed temperature value of the temperature sensor 29 in the mould; And the start and stop of pump motor, realize following processing step: control module 23 is received injection machine matched moulds commencing signal, sends instruction; First pneumatic stopping valve 18 is closed, and second pneumatic stopping valve 19 is opened, and the 3rd pneumatic stopping valve 20 closes; The 4th pneumatic stopping valve 21 is opened, and the 5th pneumatic stopping valve 22 closes.Steam in the steam accumulator 2 is introduced in heating mould in the medium channel of mould like this; In this process, the steam pressure in steam accumulator 2 is reduced to setting value, and electric heating steam generator 6 will be worked automatically, satisfies the demand of mould to steam; Arrive design temperature when temperature sensor 29 detects temperature, control module 23 sends the control system 24 that signal is given injection moulding machine, allows injection; Injection machine begins injection according to this signal; After delay time a period of time or injection finished, control module sent instruction, and second pneumatic stopping valve 19 is closed; First pneumatic stopping valve 18 is opened, and the 3rd pneumatic stopping valve 20 closes, and the 5th pneumatic stopping valve 22 is opened; The 4th pneumatic stopping valve 21 closes; The motor starting of water pump 17 is carried cooling water in the medium channel of mould, mold temperature is reduced to preset temperature, and from discharging interface 27, discharges then through the 5th pneumatic stopping valve 22 through the cooling water in the mould; Drop to setting value when temperature sensor 29 records mold temperature, control module 23 sends permission die sinking signal to the control system 24 of injection moulding machine; Send instruction simultaneously; First pneumatic stopping valve 18 is closed, second pneumatic stopping valve 19 closes, the 3rd pneumatic stopping valve 20 is opened, the 4th pneumatic stopping valve 21 closes, the 5th pneumatic stopping valve 22 is opened; The motor of water pump 17 closes, and compressed air blows out the cooling water in the medium channel of mould 28 like this; For next one circulation is prepared;
In said process, steam generator 6 will be worked according to setting pressure automatically, and the steam that produces is stored in the holder 2.Pressure in holder 2 arrives setting value, and steam generator is in holding state.Provide steam generator 6 and control module 23 required power supply by distribution box 7, and distribution box is connected with the power-supply system of factory through cable 8.
In embodiments of the present invention; Comprise distribution box, steam generator, steam accumulator, system media output interface; System media returns interface, control module etc. and is integrated on the chassis frame, has made things convenient for to install and use, and bigger advantage is energy-conservation.With respect to the embodiment of ZL200720075904.6, embodiment of the present invention can make said 47, and " energy consumption of frame reduces by 50% before the LCD TV, and molding cycle also has suitable shortening.
Though below design and instance according to the object of the invention have been done to elaborate with reference to accompanying drawing; But those of ordinary skills can recognize; Under the precondition that does not break away from the claim limited range; Still can make various improvement and conversion to the present invention, and this improvement and conversion still should belong to protection scope of the present invention.
Claims (1)
1.
The system of integrated form control quick temperature change of injection mold is characterized in that,
A, steam generation and induction system: comprise the vapour source that is linked in sequence and forms with the pipeline series connection by between the electric heating steam generator (6) of water supply tank (9), one or more parallel connections, steam accumulator (2) three; Steam accumulator (2) is arranged on the top of electric heating steam generator (6); Each steam generator (6) all has two pipelines to be connected with steam accumulator (2), and one of them pipeline that comprises check valve (5) directly is connected the bottom of steam accumulator (2); Through pipeline steam is connected to one first pipeline tie point (101) from the delivery outlet (100) of steam accumulator (2), between the first pipeline tie point (101), one second pneumatic stopping valve (19) is set at delivery outlet (100); , and one second pipeline tie point (102) is set therein and cleans compressed air and be connected to connecting with pipeline the system media output interface (25) from pipeline tie point (101); The interface (16) that system media is returned interface (26) and be built in the heat exchanger (12) in the water supply tank (9) through pipeline is connected; Between pipeline on one the 4th pneumatic stopping valve (21) is set, and return at the 4th pneumatic stopping valve (21) and system media one the 3rd pipeline tie point (103) be set on the pipeline between the interface (26); Another interface (15) of heat exchanger (12) is connected to system media discharging interface (27) through pipeline, and one the 4th tie point (104) is set on the pipeline therein; Between the 3rd pipeline tie point (103) and the 4th pipeline tie point (104), connect, and one the 5th pneumatic stopping valve (22) is set with pipeline; Return between the interface (26) through pipeline at system media output interface (25) and system media and to be connected with medium channel in the injection mold (28);
B and cooling water transfer pipeline comprising cooling water source interface (13), water pump (17), first pneumatic stopping valve (18), are linked in sequence until the first pipeline tie point (101);
C and compressed air cleaning path and pilot gas path; Comprising being linked in sequence through pipeline by compressed air supply (14), the 3rd pneumatic stopping valve (20), the outlet of (20) of the 3rd pneumatic stopping valve is connected with the second pipeline tie point (102) through pipeline; And compression control is being connected respectively on the pilot gas interface of first pneumatic stopping valve (18), second pneumatic stopping valve (19), the 3rd pneumatic stopping valve (20), the 4th pneumatic stopping valve (21), the 5th pneumatic stopping valve (22) with pipeline on the pipeline between compressed air supply (14) and the 3rd pneumatic stopping valve (20);
D and control module (23); Form by programmable processor and operation interface; Be connected with communication cable with the motor of first pneumatic stopping valve (18), second pneumatic stopping valve (19), the 3rd pneumatic stopping valve (20), the 4th pneumatic stopping valve (21), the 5th pneumatic stopping valve (22), water pump (17); And be connected the exchange cycles signal with the control system (24) of injection moulding machine, also with in being arranged on mould (28) be connected near the die cavity/temperature sensor (29) on surface, core chamber and receive temperature signal;
e and distribution box (7) arrive electric heating steam generator (6), the motor of water pump (17), control module (23) with power delivery respectively through cable.
The system of
integrated form control 2. according to claim 1 quick temperature change of injection mold; It is characterized in that the pipeline length that steam is connected to one first pipeline tie point (101) from the delivery outlet (100) of steam accumulator (2) is between 0.3-1.5m.
The system of
integrated form control 3. according to claim 1 quick temperature change of injection mold is characterized in that described steam accumulator (2) comprises safety valve (3), steam pressure gauge (4) and delivery outlet (100).
The system of
integrated form control 4. according to claim 1 quick temperature change of injection mold; It is characterized in that; Described water supply tank (9) comprises into water interface (10), switch (11) and built-in heat exchanger (12), and wherein water inlet (10) is connected with cooling water source interface (13) through pipeline.
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| CN2010103001934A CN101722638B (en) | 2010-01-11 | 2010-01-11 | Integrative system capable of controlling quick temperature change of injection mould |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010103001934A CN101722638B (en) | 2010-01-11 | 2010-01-11 | Integrative system capable of controlling quick temperature change of injection mould |
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| CN101722638A CN101722638A (en) | 2010-06-09 |
| CN101722638B true CN101722638B (en) | 2012-04-11 |
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| CN107599260A (en) * | 2017-10-23 | 2018-01-19 | 天津蓝科机械有限公司 | A kind of Multifunctional mould temperature controller |
| CN109664453B (en) * | 2018-11-02 | 2020-11-10 | 保定棉金汽车饰件制造有限公司 | Energy-saving epp production line |
| 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 |
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| CN201712142U (en) * | 2010-01-12 | 2011-01-19 | 北京中拓机械有限责任公司 | Integrated device of controlling quick temperature change of injection molds |
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Owner name: BEIJING CHN-TOP MACHINERY GROUP CO., LTD. Free format text: FORMER NAME: BEIJING CHN-TOP MACHINERY CO., LTD. |
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Address after: 102208 Beijing, Huilongguan, Beijing, China Billiton Machinery Co., Ltd. Patentee after: Co., Ltd of mechanical group is opened up in Beijing Address before: 102208 Beijing, Huilongguan, Beijing, China Billiton Machinery Co., Ltd. Patentee before: Beijing Chn-Top Machinery Co., Ltd. |