CN104526948A - Thermal-mechanical-magnetic multi-field coupling mold pressing forming machine - Google Patents
Thermal-mechanical-magnetic multi-field coupling mold pressing forming machine Download PDFInfo
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- CN104526948A CN104526948A CN201410750607.1A CN201410750607A CN104526948A CN 104526948 A CN104526948 A CN 104526948A CN 201410750607 A CN201410750607 A CN 201410750607A CN 104526948 A CN104526948 A CN 104526948A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/56—Compression moulding under special conditions, e.g. vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/56—Compression moulding under special conditions, e.g. vacuum
- B29C2043/568—Compression moulding under special conditions, e.g. vacuum in a magnetic or electric field
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5816—Measuring, controlling or regulating temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to multi-field coupling mold pressing forming equipment, and particularly relates to a thermal-mechanical-magnetic multi-field coupling mold pressing forming machine and a method for controlling the mold pressing forming condition by a control cabinet, which can be used for solving the problem that the type of equipment is lacked. The scheme is as follows: the thermal-mechanical-magnetic multi-field coupling mold pressing forming machine comprises a hydraulic machine, wherein the hydraulic machine comprises a rack and a hydraulic column head, wherein the end surface of the hydraulic column head is provided with a pressure sensor, a thermal-mechanical cooling water sleeve layer, an insulation layer, a resistor heater array and a heating withstand voltage panel; the side surface of the heating withstand voltage panel is provided with a temperature sensor connected with the control cabinet; the rack is provided with an electric coil; another temperature sensor is arranged on the surface of the electromagnetic coil; the electromagnetic coil is externally wrapped by a magnetic field cooling water sleeve layer; the surface of the inner side of the magnetic field cooling water sleeve layer is provided with a magnetic field sensor. The thermal-mechanical-magnetic multi-field coupling mold pressing forming machine has the advantages that firstly, the thermal-mechanical-magnetic field coupling mold pressing forming machine is designed; secondly, the control range is wide, the continuous operation time is long, mold pressing forming can be carried out under multi-field coupling state, single-field state or field-free state; thirdly, the fields have no interference, the reliability is high, and the control precision is high.
Description
Technical field
The present invention relates to multi-scenarios method compression molding device, be specially Re-Li-magnetic multi-scenarios method compression molding forming machine.
Background technology
Magnetic function polymer composite is because have excellent properties, as electricity, optics, magnetism characteristic, light weight, low magnetic loss, ambient stable, easy processing, Flouride-resistani acid phesphatase, and dielectric constant, dielectric loss, magnetic conductivity, magnetic loss be not substantially with frequency and variations in temperature, molecule structure change is various, likely make the element of stable monophasic fluid and various complicated shape, thus can be widely used in intelligent damping, isolated material, light wide-band microwave absorbent, magnetoresistive sensor, low magnetic loss high-frequency microwave communication device, magnetic seal device.If can coordinate with other functional material and there is infinitely fine application prospect undoubtedly.But the application of magnetic function polymer composite is significantly less than expection, main cause is that this material exists mechanical property and the problem being difficult to simultaneously to improve such as functional all the time.Nearest research finds, external magnetic field is applied in magnetic function polymer composite forming process, effectively can control the distribution of magnetic particle in macromolecule matrix, effectively can not only improve the mechanical property of magnetic function composite, greatly improve that it is functional simultaneously.This is found to be its extensive use and lays a good foundation.Therefore, the research for the machine-shaping under magnetic fields of this type of material is extensively carried out.As everyone knows, temperature field and on-load pressure is also related in magnetic function polymer composite die press technology for forming.These factors such as the size in magnetic field and load time, temperature and heat time, on-load pressure and time are the key factors of the Structure and Properties controlling magnetic function polymer composite.Thus, system probes into the impact of these influence factors on magnetic function polymer composite Structure and Properties, not only plays most important effect to its combination property of raising, and also has important science and using value for the research of science of intelligent materials.
But, there is no at present can directly carry out the field of force, magnetic field and thermal field coupling loading environment under compression molding device.Trace it to its cause, technical difficult points has three aspects: 1, in equipment, the applying of variable magnetic field adopts coil usually.But the heating problem that in coil, the fuel factor of electric current causes, coil temperature will be caused to raise, and magnetic field is larger, temperature rises higher, this directly limits the limiting value adding loaded magnetic field and the time adding loaded magnetic field continuously, therefore, design and develop the field generator for magnetic that can load highfield continuously and become one of challenge; 2, the applying of thermal field adopts Resistant heating usually, but, because electric current certainly leads to magnetic field by during resistance wire, thus have influence on test specimen district for adding size and the uniformity in magnetic field; Meanwhile, the heat that coil produces can have influence on temperature level and the uniformity in test specimen district, and therefore, exploitation applies mode with non-interfering magnetic field, magnetic field and thermal field becomes challenge two; 3, the field of force, magnetic field, each precise hard_drawn tuhes of thermal field and sensing element, and between other each parts of instrument, often there is the mutual interference of electricity, magnetic, often diamagnetic material can only be adopted around magnetic field, ensure that thermal coefficient of expansion is enough low simultaneously, cause the difficulty of former each position selection and processing thus, this is three of challenge.Therefore, design one effectively to realize non-interfering height-Li hot in nature-magnetic multi-scenarios method compression molding forming machine magnetic function field of polymer composite material tool is of great significance.
Summary of the invention
The present invention solves the technical problem lacking multi-scenarios method compression molding device at present, provides a kind of Re-Li-magnetic multi-scenarios method compression molding forming machine and control cabinet to control the method for compression molding condition.
The present invention is achieved by the following technical solutions :--Re-Li-magnetic multi-scenarios method compression molding forming machine, comprise hydraulic press, described hydraulic press comprises frame and controls the upper hydraulic pressure column cap of lifting and lower hydraulic pressure column cap with relative, independent, and described hydraulic column end surface is provided with pressure sensor, Re-Li cooling water jacket layer, insulating barrier, resistance heater array successively, heats resistance to locating back; Described Re-Li cooling water jacket layer is the hydrologic cycle cooling system with water inlet and delivery port; Described resistance heater array is embedded in the resistance to locating back of heating; Described heating is withstand voltage, and dull and stereotyped side is provided with the first temperature sensor, and described first temperature sensor is connected with control cabinet; Described hydraulic press, resistance heater array, Re-Li cooling water jacket layer, pressure sensor are connected with control cabinet; Described frame is provided with the solenoid be looped around around lower hydraulic pressure column cap, described solenoid surface is provided with the second temperature sensor, described solenoid is wrapped with magnetic-field cooling water jacket layer, and described magnetic-field cooling system is also the hydrologic cycle cooling system with water inlet and delivery port; Described magnetic-field cooling water jacket layer inner surface, between upper hydraulic pressure column cap and lower hydraulic pressure column cap, be provided with magnetic field sensor; Described magnetic field sensor, the second temperature sensor, magnetic-field cooling system are connected with control cabinet with solenoid.The upper and lower hydraulic pressure column cap of hydraulic press applies the field of force.Determination of pressure sensor hydraulic pressure column cap applies the size in the field of force, and insulating barrier prevents resistance heater array from leaking electricity.Re-Li cooling water jacket layer is that insulating barrier cools, and prevents temperature from passing to pressure sensor, and then the temperature of regulating resistance heater arrays and resistance to locating back, realizes the accurate control of thermal field.It is the withstand voltage flat heater of heating after the energising of resistance heater array.In addition, upper and lower hydraulic pressure column cap and the resistance to locating back of heating also serve the effect of yoke, improve magnetic field intensity and the homogeneity of solenoid.First temperature sensor measurement heats the temperature of resistance to locating back, accurately to control the size in institute heating field.Solenoid is field generator for magnetic.Magnetic-field cooling water jacket layer cools solenoid, prevents solenoid conduction time long causing from producing too high temperature.Second temperature sensor measurement solenoid surface temperature, to realize the temperature accurately controlling solenoid generation.Magnetic field sensor measures the intensity in magnetic field between two hydraulic pressure column caps.Control cabinet is by the data of collection first temperature sensor, the second temperature sensor, magnetic field sensor, determination of pressure sensor, by sending control instruction after analyzing and processing, thus whether cooperation control is worked by the size of current of resistance heater array, Re-Li cooling water jacket layer, whether the size of current in solenoid, magnetic-field cooling water jacket layer work, the hydraulic pump power of hydraulic press, to realize the mold pressing parameter of accurately control Re-Li-magnetic Field Coupling.
Described control cabinet comprises rectifier power source, programmable controller PLC, data collecting card, signal generating module, D/A module and power amplifier; Described programmable controller PLC is connected with data collecting card and signal generating module; Described signal generating module is connected with D/A module and power amplifier; Described D/A module is connected with rectifier power source; Described first temperature sensor, the second temperature sensor, pressure sensor, magnetic field sensor are connected with the data collecting card of control cabinet; Described resistance heater array, solenoid are connected with the rectifier power source of control cabinet; Described Re-Li cooling water jacket layer, magnetic-field cooling water jacket layer are connected with the power amplifier of control cabinet with hydraulic press.Programmable controller PLC is responsible for the setting of compression molding condition and is processed data-signal, analyzes, judges, sends control instruction.Data collecting card is responsible for the collection of each sensing data.The control instruction that signal generating module is responsible for Programmable Logic Controller to send is converted to drive singal.The drive singal that signal generating module is changed out by D/A module is converted to analog signal amount, thus electric current, voltage or power that control rectifier power source exports.The drive singal that signal generating module is changed out by power amplifier carries out power amplification, thus whether controlling magnetic field cooling water jacket layer works, whether Re-Li cooling water jacket layer works and the hydraulic pump of hydraulic press operates and power.Rectifier power source provides electric energy to solenoid and resistance heater array, thus produces magnetic field or distribute heat.
The method of the control cabinet control compression molding condition of described Re-Li-magnetic multi-scenarios method compression molding forming machine comprises the following steps:
Step 101: carry out presetting to compression molding condition by programmable controller PLC, described compression molding condition comprises magnetic field intensity, thermal field, on-load pressure size;
Step 102: programmable controller PLC sends and starts magnetic field and thermal field control instruction, and exports the drive singal of magnetic field and thermal field by signal generating module;
The drive singal exported in step 102 is carried out digital-to-analogue conversion by step 103:D/A module, exports analog quantity curtage signal;
The analog quantity curtage signal that step 104:D/A module exports controls rectifier power source to solenoid and resistance heater powering arrays, thus produces magnetic field and thermal field;
Step 105: by data collecting card by the first temperature sensor, the second temperature sensor and magnetic field sensor collecting temperature and magnetic field strength date;
Step 106: programmable controller PLC processes the data gathered, analyzes, and compares with presetting magnetic field intensity and temperature conditions:
If be greater than presetting value, then programmable controller PLC produces magnetic-field cooling water jacket layer and/or Re-Li cooling water jacket layer drive singal by signal generating module, and power amplifier carries out amplification rear drive magnetic-field cooling water jacket layer to drive singal and/or Re-Li cooling water jacket layer is started working;
If be less than presetting value, then return step 102 and restart test;
If equal presetting value, then enter step 107;
Step 107: programmable controller PLC sends field of force control instruction, and the drive singal being exported the field of force by signal generating module;
Step 108: the field of force drive singal exported in step 107 amplifies the hydraulic pump of rear drive hydraulic press through power amplifier, makes the pressing of upper and lower hydraulic pressure column cap, produces constant pressure;
Step 109: data collecting card gathers pressure data by pressure sensor;
Step 110: programmable controller PLC processes the pressure data gathered, analyzes, and judges whether to reach presetting pressure condition:
If be judged as NO, then return step 107 and restart test;
If be judged as YES, then automatically control end-of-job.
The present invention has the following advantages: the moulding press 1, designing the automatic control compression molding that can realize under Re-Li-magnetic Field Coupling loading environment first; 2, heat, power, (maximum magnetic field strength is greater than 1.5T to Magnetic control wide ranges, maximum temperature is higher than 250 DEG C, maximum pressure is greater than 15MPa) stream time long (stream time is not less than 0.5H), not only can continuous operation under multi-scenarios method condition, also can compression molding under single field or field-off state; 3, between each field, electricity, magnetic, heat do not interfere with each other mutually, have higher reliability, and control accuracy are higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is control cabinet connection relationship module figure of the present invention;
Fig. 3 is the method flow diagram that the present invention controls compression molding condition.
Hydraulic pressure column cap on 1-in figure, 2-insulating barrier, 3-solenoid, 4-heats resistance to locating back, 5-second temperature sensor, 6-Re-Li cooling water jacket layer, 7-frame, hydraulic pressure column cap under 8-, 9-pressure sensor, 10-magnetic field sensor, 11-resistance heater array, 12-magnetic-field cooling water jacket layer, 13-first temperature sensor.
Detailed description of the invention
--Re-Li-magnetic multi-scenarios method compression molding forming machine, comprise hydraulic press, described hydraulic press comprises frame 7 and controls the upper hydraulic pressure column cap 1 of lifting and lower hydraulic pressure column cap 8 with relative, independent, and described hydraulic column end surface is provided with pressure sensor 9, Re-Li cooling water jacket layer 6, insulating barrier 2, resistance heater array 11 successively, heats resistance to locating back 4; Described Re-Li cooling water jacket layer 6 is the hydrologic cycle cooling system with water inlet and delivery port; Described resistance heater array 11 is embedded in the resistance to locating back 4 of heating; Described heating resistance to locating back 4 side is provided with the first temperature sensor 13, and described first temperature sensor 13 is connected with control cabinet; Described hydraulic press, resistance heater array 11, Re-Li cooling water jacket layer 6, pressure sensor 9 are connected with control cabinet; Described frame 7 is provided with the solenoid 3 be looped around around lower hydraulic pressure column cap, described solenoid 3 surface is provided with the second temperature sensor 5, described solenoid 3 is wrapped with magnetic-field cooling water jacket layer 12, and described magnetic-field cooling water jacket layer 12 is also the hydrologic cycle cooling system with water inlet and delivery port; Described magnetic-field cooling water jacket layer 12 inner surface, between upper hydraulic pressure column cap 1 and lower hydraulic pressure column cap 8, be provided with magnetic field sensor 10; Described magnetic field sensor 10, second temperature sensor 5, magnetic-field cooling water jacket layer 12 are connected with control cabinet with solenoid 3.
During use, started by control cabinet and the work of control Re-Li cooling water jacket layer 6 and magnetic-field cooling water jacket layer 12, magnetic conduction mould is placed on the resistance to locating back 4 of heating of lower hydraulic pressure column cap 8, control cabinet is by the hydraulic pump of hydraulic control machine, thus hydraulic pressure column cap 8 and magnetic conduction mould drop to compacting position under controlling, upper hydraulic pressure column cap 1 drops to the resistance to locating back 4 of the heating be fixed on hydraulic pressure column cap 1 and magnetic conduction contacting dies.Control cabinet is by the electrical current size of controlling resistance heater arrays 11, thus controlling resistance heater arrays heats, to realize the preheating of magnetic conduction mould to the resistance to locating back 4 of heating.First temperature sensor 13 measures temperature when reaching design temperature, and control cabinet controlling resistance heater arrays 11 stops heating, and upper hydraulic pressure column cap 1 rises, and lower hydraulic pressure column cap 8 is lifted magnetic conduction mould and risen to initial position.At magnetic conduction die surface smearing release agent, then uncured magnetic function polymer composite is poured in the groove of mould lower plate, reach after gel point until material, mould upper plate is closed, control lower hydraulic pressure column cap 8 by control cabinet and drop to compacting position, upper hydraulic pressure column cap 1 drops to the resistance to locating back 4 of heating and fits with magnetic conduction mould upper plate.The heat be coupled by control cabinet setting, power, magnetic field size and time, upper and lower hydraulic pressure column cap applies constant pressure by the upper and lower plate of the resistance to locating back of heating 4 pairs of magnetic conduction moulds.Resistance heater array 11 is by heating the resistance to locating back 4 of heating, and the mensuration of the first temperature sensor 13 pairs of temperature, thus realizes applying constant thermal field to mould and magnetic function polymer composite.Magnetic field is produced after solenoid 3 is energized, simultaneously upper and lower hydraulic pressure column cap and heat the magnetic field being positioned at solenoid 3 when resistance to locating back 4 is in compacting position and producing, serve the effect of yoke, not only strengthen the intensity in magnetic field, the significant raising that also made the homogeneity in magnetic field have.Second temperature sensor 5 measures the size producing thermal field after solenoid 3 is energized, and when the thermal field that solenoid 3 produces exceedes design temperature, control cabinet starts magnetic-field cooling water jacket layer 12 pairs of solenoids 3 and cools.Within the scope of setting-up time, Re-Li-magnetic multi-scenarios method compression molding forming machine achieves and applies steady temperature, constant pressure, stationary magnetic field to magnetic function polymer composite.After arriving setting-up time, resistance heater array 11 stops heating, solenoid 3 stops energising producing magnetic field, upper and lower hydraulic pressure column cap rises to initial position respectively, take out mould, die sinking, takes out compressing magnetic function polymer composite, and what complete to magnetic function polymer composite under Re-Li-magnetic multi-scenarios method condition is compressing.
During concrete enforcement, described control cabinet comprises rectifier power source 18, programmable controller PLC 15, data collecting card 14, signal generating module 16, D/A module 19 and power amplifier 17; Described programmable controller PLC 15 is connected with data collecting card 14 and signal generating module 16; Described signal generating module 16 is connected with D/A module 19 and power amplifier 17; Described D/A module 19 is connected with rectifier power source 18; Described first temperature sensor 13, second temperature sensor 5, pressure sensor 9, magnetic field sensor 10 are connected with the data collecting card 14 of control cabinet; Described resistance heater array 11, solenoid 3 are connected with the rectifier power source 18 of control cabinet; Described Re-Li cooling water jacket layer 6, magnetic-field cooling water jacket layer 12 are connected with the power amplifier 17 of control cabinet with hydraulic press.Programmable controller PLC 15 is responsible for the setting of compression molding condition and is processed data-signal, analyzes, judges, sends control instruction.Data collecting card 14 is responsible for the collection of each sensing data.Signal generating module 16 is responsible for the control instruction that programmable controller PLC 15 sends to be converted to drive singal.The drive singal that signal generating module 16 is changed out is converted to analog signal amount by D/A module 19, thus electric current, voltage or power that control rectifier power source 18 exports.The drive singal that signal generating module 16 is changed out by power amplifier 17 carries out power amplification, thus driving magnetic field cooling water jacket layer 12, Re-Li cooling water jacket layer 6 start the hydraulic pump running of work and hydraulic press.Rectifier power source 18 provides electric energy to solenoid 3 and resistance heater array 11, thus produces magnetic field or distribute heat.Described upper hydraulic pressure column cap 1, lower hydraulic pressure column cap 8 are made for DT4 electrical pure iron, and the resistance to locating back 4 of described heating is made for alloy cast aluminium.The hydraulic pressure column cap that DT4 electrical pure iron is made has good magnetic conductance, and the resistance to locating back of heating that metal casting aluminium is made has good heat conductivility, magnetic property and withstand voltage properties, effectively can improve the magnetic field intensity of electric coil and the homogeneity in magnetic field.Water inlet and/or the water outlet of described Re-Li cooling water jacket layer 6 and magnetic-field cooling water jacket layer 12 are provided with magnetic valve, and described magnetic valve is connected with the power amplifier 17 of control cabinet.The power amplifier 17 of control cabinet by the opening and closing of Controlling solenoid valve thus the work controlling institute Re-Li cooling water jacket layer 6 and magnetic-field cooling water jacket layer 12 whether.Described magnetic-field cooling water jacket layer 12 is made up of austenitic stainless steel metal.Austenitic stainless steel has good resistance to elevated temperatures.Described insulating barrier 2 is mica spacer, highland barley paper, leaching dimethylbenzene insulated paint bandage are integrated and formed.Mica spacer has good insulating properties, and highland barley paper has good insulating properties, pliability, water-fast, wear-resisting, grease resistance, ageing-resistant, and leaching dimethylbenzene insulated paint bandage has good insulating properties.
The method of the control cabinet control compression molding condition of described Re-Li-magnetic multi-scenarios method compression molding forming machine comprises the following steps:
Step 101: undertaken presetting by programmable controller PLC 15 pairs of compression molding conditions, described compression molding condition comprises magnetic field intensity, thermal field, on-load pressure size;
Step 102: programmable controller PLC 15 sends and starts magnetic field and thermal field control instruction, and is exported the drive singal of magnetic field and thermal field by signal generating module 16;
The drive singal exported in step 102 is carried out digital-to-analogue conversion by step 103:D/A module 19, exports analog quantity curtage signal;
The analog quantity curtage signal that step 104:D/A module 19 exports controls rectifier power source 18 and powers to solenoid 3 and resistance heater array 11, thus produces magnetic field and thermal field;
Step 105: by data collecting card 14 by the first temperature sensor 13, second temperature sensor 5 and magnetic field sensor 10 collecting temperature and magnetic field strength date;
Step 106: programmable controller PLC 15 processes the data gathered, analyzes, and compares with presetting magnetic field intensity and temperature conditions:
If be greater than presetting value, then programmable controller PLC 15 produces magnetic-field cooling water jacket layer 12 and/or Re-Li cooling water jacket layer 6 drive singal by signal generating module 16, power amplifier 17 pairs of drive singal carry out amplification rear drive magnetic-field cooling water jacket layer 12 and/or Re-Li cooling water jacket layer 6 is started working, and then return step 105 and restart test;
If be less than presetting value, then return step 102 and restart test;
If equal presetting value, then enter step 107;
Step 107: programmable controller PLC 15 sends field of force control instruction, and export the drive singal in the field of force by signal generating module 16;
Step 108: the field of force drive singal exported in step 107 amplifies the hydraulic pump of rear drive hydraulic press through power amplifier 17, make the pressing of upper and lower hydraulic pressure column cap, produce constant pressure;
Step 109: data collecting card 14 gathers pressure data by pressure sensor 9;
Step 110: programmable controller PLC 15 processes the pressure data gathered, analyzes, and judges whether to reach presetting pressure condition:
If be judged as NO, then return step 107 and restart test;
If be judged as YES, then automatically control end-of-job.
Claims (6)
1. Yi Zhong Re-Li-magnetic multi-scenarios method compression molding forming machine, comprise hydraulic press, it is characterized by: described hydraulic press comprises frame (7) and relative, independent upper hydraulic pressure column cap (1) and the lower hydraulic pressure column cap (8) controlling lifting, and described hydraulic column end surface is provided with pressure sensor (9), Re-Li cooling water jacket layer (6), insulating barrier (2), resistance heater array (11) successively, heats resistance to locating back (4); Described Re-Li cooling water jacket layer (6) is the hydrologic cycle cooling system with water inlet and delivery port; Described resistance heater array (11) is embedded in the resistance to locating back of heating (4); The resistance to locating back of described heating (4) side is provided with the first temperature sensor (13), and described first temperature sensor (13) is connected with control cabinet; Described hydraulic press, resistance heater array (11), Re-Li cooling water jacket layer (6), pressure sensor (9) are connected with control cabinet; Described frame (7) is provided with the solenoid (3) be looped around around lower hydraulic pressure column cap, described solenoid (3) surface is provided with the second temperature sensor (5), described solenoid (3) is wrapped with magnetic-field cooling water jacket layer (12), and described magnetic-field cooling water jacket layer (12) is also the hydrologic cycle cooling system with water inlet and delivery port; Described magnetic-field cooling water jacket layer (12) inner surface, between upper hydraulic pressure column cap (1) and lower hydraulic pressure column cap (8), be provided with magnetic field sensor (10); Described magnetic field sensor (10), the second temperature sensor (5), magnetic-field cooling water jacket layer (12) are connected with control cabinet with solenoid (3).
2. Re-Li according to claim 1-magnetic multi-scenarios method compression molding forming machine, is characterized by: described control cabinet comprises rectifier power source (18), programmable controller PLC (15), data collecting card (14), signal generating module (16), D/A module (19) and power amplifier (17); Described programmable controller PLC (15) is connected with data collecting card (14) and signal generating module (16); Described signal generating module (16) is connected with D/A module (19) and power amplifier (17); Described D/A module (19) is connected with rectifier power source (18); Described first temperature sensor (13), the second temperature sensor (5), pressure sensor (9), magnetic field sensor (10) are connected with the data collecting card (14) of control cabinet; Described resistance heater array (11), solenoid (3) are connected with the rectifier power source (18) of control cabinet; Described Re-Li cooling water jacket layer (6), magnetic-field cooling water jacket layer (12) and hydraulic press are connected with the power amplifier (17) of control cabinet.
3. Re-Li according to claim 2-magnetic multi-scenarios method compression molding forming machine, is characterized by: described upper hydraulic pressure column cap (1), lower hydraulic pressure column cap (8) are made for DT4 electrical pure iron, and the resistance to locating back of described heating (4) is made for alloy cast aluminium.
4. Re-the Li according to claim 1 or 2 or 3-magnetic multi-scenarios method compression molding forming machine, is characterized by: described magnetic-field cooling water jacket layer (12) is made up of austenitic stainless steel metal.
5. Re-Li according to claim 4-magnetic multi-scenarios method compression molding forming machine, is characterized by: described insulating barrier (2) is mica spacer, highland barley paper, leaching dimethylbenzene insulated paint bandage are integrated and formed.
6. Re-Li according to claim 5-magnetic multi-scenarios method compression molding forming machine, the method that its control cabinet controls compression molding condition comprises the following steps:
Step 101: carry out presetting to compression molding condition by programmable controller PLC (15), described compression molding condition comprises magnetic field intensity, thermal field, on-load pressure size;
Step 102: programmable controller PLC (15) sends and starts magnetic field and thermal field control instruction, and exports the drive singal of magnetic field and thermal field by signal generating module (16);
The drive singal exported in step 102 is carried out digital-to-analogue conversion by step 103:D/A module (19), exports analog quantity curtage signal;
The analog quantity curtage signal that step 104:D/A module (19) exports controls rectifier power source (18) to solenoid (3) and resistance heater array (11) power supply, thus produces magnetic field and thermal field;
Step 105: by data collecting card (14) by the first temperature sensor (13), the second temperature sensor (5) and magnetic field sensor (10) collecting temperature and magnetic field strength date;
Step 106: programmable controller PLC (15) processes the data gathered, analyzes, and compares with presetting magnetic field intensity and temperature conditions:
If be greater than presetting value, then programmable controller PLC (15) produces magnetic-field cooling water jacket layer (12) and/or Re-Li cooling water jacket layer (6) drive singal by signal generating module (16), power amplifier (17) carries out amplification rear drive magnetic-field cooling water jacket layer (12) to drive singal and/or Re-Li cooling layer (6) is started working, and then returns step 105 and restarts test;
If be less than presetting value, then return step 102 and restart test;
If equal presetting value, then enter step 107;
Step 107: programmable controller PLC (15) sends field of force control instruction, and the drive singal being exported the field of force by signal generating module (16);
Step 108: the field of force drive singal exported in step 107 amplifies the hydraulic pump of rear drive hydraulic press through power amplifier (17), makes the pressing of upper and lower hydraulic pressure column cap, produces constant pressure;
Step 109: data collecting card (14) gathers pressure data by pressure sensor (9);
Step 110: programmable controller PLC (15) processes the pressure data gathered, analyzes, and judges whether to reach presetting pressure condition:
If be judged as NO, then return step 107 and restart test;
If be judged as YES, then automatically control end-of-job.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410750607.1A CN104526948B (en) | 2014-12-10 | 2014-12-10 | Thermal-mechanical-magnetic multi-field coupling mold pressing forming machine |
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| CN201410750607.1A CN104526948B (en) | 2014-12-10 | 2014-12-10 | Thermal-mechanical-magnetic multi-field coupling mold pressing forming machine |
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| CN104526948A true CN104526948A (en) | 2015-04-22 |
| CN104526948B CN104526948B (en) | 2017-01-18 |
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| CN107972216A (en) * | 2017-12-01 | 2018-05-01 | 湘潭大学 | Magnetic rheology elastic body Integral molding device for insoles based on multi- scenarios method effect |
| CN108062122A (en) * | 2017-12-18 | 2018-05-22 | 武汉大学 | Internal memorial alloy electromagnetic heating temperature control system |
| CN110715325A (en) * | 2018-08-29 | 2020-01-21 | 肇庆市尚尼智能家居科技有限公司 | Gas stove and method for controlling firepower |
| CN111289693A (en) * | 2020-02-18 | 2020-06-16 | 北京科技大学 | Device for directly measuring multi-card effect |
| CN111516282A (en) * | 2020-04-24 | 2020-08-11 | 湖北平安电工材料有限公司 | Preparation method of laminated mica magnetic conduction plate |
| CN111590921A (en) * | 2020-05-21 | 2020-08-28 | 湘潭大学 | Method and device for forming high-molecular heat-conducting composite material based on multi-scale structure control |
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| CN109239273A (en) * | 2018-09-26 | 2019-01-18 | 北京理工大学 | The dynamic response test platform of magnetic materials under the hot multi- scenarios method environment of power-magnetic- |
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| CN111590921A (en) * | 2020-05-21 | 2020-08-28 | 湘潭大学 | Method and device for forming high-molecular heat-conducting composite material based on multi-scale structure control |
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