CN104749016A - High polymer vacuum tableting equipment - Google Patents
High polymer vacuum tableting equipment Download PDFInfo
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- CN104749016A CN104749016A CN201510192825.2A CN201510192825A CN104749016A CN 104749016 A CN104749016 A CN 104749016A CN 201510192825 A CN201510192825 A CN 201510192825A CN 104749016 A CN104749016 A CN 104749016A
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Abstract
The invention provides high polymer vacuum tableting equipment. The high polymer vacuum tableting equipment comprises four support posts, a top plate, a movable die part, a fixed die part, a power source part, a power executing part, a lead screw fixing plate and a bottom plate, wherein the movable die part is movably fixed on the support posts through the movable die fixing plate and a shaft sleeve embedded into the movable die fixing plate; the lower side of the movable die part is fixed on the lead screw fixing plate; the fixed die part is fixed together with the top plate through the fixed die fixing plate; the movable die part and the fixed die part are connected to the support posts respectively; the power executing part controls the movable die part to move in a reciprocating way under the guidance of the support posts by means of power supplied by the power source part; the movable die part moves upwards to form an enclosed cavity together with the fixed die part; the movable die part and the fixed die part are provided with thermal circulation systems for heating and cooling polymers in the cavity; the fixed die part is connected with a vacuum pumping device. The equipment has the characteristics of small occupied space, high control accuracy, accurate measured data, slow loss of consumable elements and low maintenance cost.
Description
Technical field
The present invention relates to a kind of superpolymer vacuum sheeting equipment, in the vacuum environment of uniform temperature and certain pressure, prepare certain thickness superpolymer schistose texture.
Background technology
Superpolymer sheet is mainly used in the scientific research of biology, material and chemical laboratory, and superpolymer Vacuum Pressure sheet devices is the necessaries of this sheet of preparation.
Existing vacuum sheeting equipment, highly about 2m, volume is about 3m
3, take up room large.Existing equipment utilizes simple hydraulic pressure as power source, and because not coordinating the servo control mechanisms such as oil motor, so automaticity is low, control accuracy is not high.This oil piping system designs because Sealing Technology is poor simultaneously, oil easily occurs and leaks, easy contaminated environment.Existing equipment is in pressure survey link, at lower hydraulic part setting pressure table, it measures pressure owing to being through the generation that simply converts by the measurement pressure of hydraulic oil, therefore in the pressure transfer process of bolster, the power of loss cannot be added up, so cause the pressure of final measurement and the true pressure acted on sample to there is deviation.Because equipment applies pressure comparatively greatly, and sample area is less, and according to formula P=F/S, F deviation is comparatively large, and S is less, and therefore deviation pressure can produce considerable influence to the pressure finally acted on sample, thus it is inaccurate to cause finally showing pressure.Simultaneously at packing stage, because of the non-actual pressure acted on sample of setting pressurize pressure, so cause whole pressure maintaining period to occur distortion, this phenomena impair experimental precision.
Existing equipment in heating cooling link, the design of the macrostructure of cavity cause heat up and cooldown rate low, thus cause test link can not effective regulated variable, experiment cannot reach design temperature in time.Because equipment needs vacuum environment in the course of the work, therefore need seal element to be installed to form closed containing cavity.The upper limit temperature of heat tolerance of seal element is 200 DEG C in the market, and cavity heating part temperature is generally higher than 220 DEG C, cools so need to design cooling structure on equipment seal.Existing equipment is in seal component architecture design, and seal element Cooling Design is unreasonable, causes seal element environment temperature effectively not reduce, seal (O circle etc.) heat fatigue is easily caused to damage, thus cause seal element loss serious, change frequent, maintenance cost is high.Because heat radiation is larger on device measuring sensor (non-thermal galvanic couple) impact, part steel construction easily produces heat fatigue for a long time in hot environment, thus causes mechanical properties decrease, therefore, need to design heat insulation structural on equipment, stop the transmission of heat with orientation.Because existing equipment volume is large, heating component is many, and unavailable heat radiation is large, and insulating equipment structural design is more loaded down with trivial details, and scientific and technological content is lower, thus causes insulating assembly efficiency low, adds weight of equipment simultaneously.
Therefore, as a complete unit, existing equipment takes up room greatly, and control accuracy is low, and core parameter is measured not accurate, and attrition component consumption is large, and maintenance cost is high.
Solve this kind equipment Problems existing in the past, must improve current used equipment, equipment after improvement should have following functions: first, need outside basic function meeting scientific research institution, the volume of reduction equipment of should trying one's best, improve space availability ratio, get rid of stress equipment always bulky, manufacture coarse image.The second, because equipment does not need complicated multichannel power, therefore should simplify dynamic structure as far as possible, make power system reach succinct, easy-to-use, stable, that precision is high feature.3rd, at measurement and the control section of core data, should make every effort to data accurately, feedback rapidly, sensor and display system should be able to effective statisticss, thus give security for late time data analysis, power system should with control system close fit, adjust in time according to instruction.Specifically, force snesor should be able to the pressure of accurate feedback product surface, and power system should be able to adjust according to setting pressure and current pressure, should form closed loop between sensor and power system.4th, heating and cooling system should more science be distributed in around goods, according to demand for control, timely adjustment should be able to be made, reach high-level efficiency, high-precision feature.5th, in the Position Design of seal element, hyperthermia radiation should be avoided as far as possible, in the design of the cooling structure of seal element, the suitable type of cooling and cooling duct should be selected, make cooling high-efficiency, reduce the loss of seal element, extend seal element serviceable life.6th, when the Material selec-tion of thermal insulation board, while guarantee heat-barrier material environment for use, reduce coefficient of heat conductivity as far as possible, make every effort to efficiently heat insulation.
Summary of the invention
The object of the invention is to design a kind of novel production facility, reach height within 1.2m, volume is at 1m
3within, take up room little feature, possesses that control accuracy is high, the measurement data feature that accurately, easily consumption element loss is slow, maintenance cost is low simultaneously.
This equipment comprises four support columns, top board, dynamic model part, cover half part, power source part, power performs part, leading screw fixed head, base plate, four support columns pass through nut, be fixed on top board and base plate, top board and base plate are located on the support columns by clearance fit, dynamic model part is movably fixed on support column by the axle sleeve that dynamic mould fixing plate and dynamic mould fixing plate are inlayed, wherein said axle sleeve and dynamic mould fixing plate clearance fit location, dynamic model beneath portions is fixed on leading screw fixed head, leading screw fixed head is combined by clearance fit and support column, cover half part is fixed by cover half fixed head and top board, dynamic model part and cover half part are connected on support column, the power control dynamic model part that power execution part provides by power source part take support column as guiding and moves back and forth up and down on the support columns, dynamic model part moves up and cover half part forms closed cavity jointly, dynamic model part and cover half part are provided with the heat circulating system of the heating and cooling for Polymer Processing in cavity, and cover half part is connected with vacuum extractor.
Dynamic model part comprises moving platen, force snesor, sensor fixation plate and heat circulating system, described moving platen, described force snesor and heat circulating system are fixed together, located by little guide pillar between moving platen and sensor fixation plate, the heating function of wherein said heat circulating system is realized by the spiral heating silk that dynamic model heating plate is arranged, the wire of spiral heating silk is derived by wire guide, the refrigerating function of described heat circulating system is realized by the chilled water of the dynamic model water channel arranged in dynamic model coldplate, dynamic model coldplate designs paddle hole, water inlet pipe and water outlet pipe and wire are derived in the lump by leadout hole.
Cover half part comprises solid plate, cover half thermal insulation board, assembly under assembly and cover half on cover half, described solid plate, cover half thermal insulation board, on cover half, under assembly and cover half, assembly is fixed together by long spiro nail, the heat circulating system of cover half part to be arranged on cover half under assembly and cover half on assembly, the heating function of wherein said heat circulating system is realized by the heating rod in the heating rod hole on design assembly top on cover half, the refrigerating function of described heat circulating system, the refrigerating function of described heat circulating system is realized by the chilled water of the sealing cooling water channel of design under cover half in assembly, assembly is also provided with cover half and vacuumizes hole.
Power source part comprises planetary reducer and servomotor, and described planetary reducer and servomotor are fixed together by flange, and servomotor is positioned on the right side of planetary reducer.
Power enforcement division is divided and is comprised screw set cylinder, ball screw assembly, ball-screw, leading screw holder and shaft coupling, leading screw sleeve is combined by flange and ball screw assembly, both can realize synchronous axial system, the cooperation of ball-screw and leading screw holder inner bearing is fixed, one end and the ball screw of shaft coupling are fixed together, in addition one end and described power source partial fixing.
Have in specific design:
1. one-piece construction of the present invention is made up of five parts such as support column, top board, dynamic mould fixing plate, leading screw fixed head, base plates.The support column of four diameter 60mm, by nut, is fixed respectively with top board and base plate.Dynamic mould fixing plate and dynamic model are fixed by screw, and dynamic mould fixing plate leads with support column, can move up and down within the specific limits.The gauge of top board, base plate, fixed head and support column and steel type, through the comparison of preset pressure and steel yield stress, calculate after determine.The maximum power output of this equipment is 5t, and after one-piece construction modeling, use ANSYS to analyze, show that the thickness of top board, base plate is 40mm, the diameter of support column selects 60mm.Because there is slip on support column surface, at plating hard chromium on surface, ensure smooth finish and wearing quality.
2. power source part of the present invention is made up of servomotor and planetary reducer.For reaching succinct, easy-to-use, stable, that precision is high feature, the present invention abandons the hydraulic power supply of existing equipment, selects electric servomechanism to replace.Servomotor precision is high, has been combined closed-loop control with PLC, easily realizes higher robotization.While servo control mechanism reduction equipment volume, raising space availability ratio, effectively can stop oil and reveal, avoid oil pollution.The selection of Motor mode of this equipment is: the experimentally particular type of required power and ball-screw, extrapolates ball-screw input torque.According to the reduction gear ratio of reductor, calculate the output torque of servomotor, thus determine the particular type of motor.The output speed of requirement need be considered when reductor is selected, need motor to match simultaneously.This equipment choosing output torque is the servomotor of 8Nm, selects 15:1 planetary reducer.
3. power execution part of the present invention has been combined by ball-screw, ball screw assembly, and leading screw sleeve.Ball-screw is connected by shaft coupling with reductor, and ball-screw lower end is combined with fixed head by supporting seat.Ball screw assembly, is combined with leading screw sleeve by flange.Ball-screw of the present invention, ball screw assembly, adopt plow-steel to make, and ensure that leading screw there will not be damage when applying 1.2 times of calculated torque.
4. because the present invention is mainly used in the making of laboratory scientific research sample, so in cavity structure design, need ensure temperature, cooling, three systems such as heat insulation effective and precisely tonometric.The present invention adopts upper and lower mould to heat simultaneously, and patrix heating rod is dispersed in around goods, and counterdie heating system is Archimedes's ring-shaped, is arranged in below sample.Like this while guarantee goods thermally equivalent, the production cycle of product can be shortened.The present invention relates to the utilization of cooling system, and cooling there is considerable influence to end article.Therefore cooling water channel is distributed in upper and lower mould ringwise.In addition, place outside hermetically-sealed construction and install annular cooling water road additional, independent water-cooled cooling is carried out to O-ring seal, to ensure the serviceable life that seal element is longer, reduce the consumption of attrition component.Because the space of heating system and cooling system is less, for reducing unnecessary thermal-radiating region, less heat waste as far as possible, so need to design effective heat insulation structural.The thermal insulation board that this insulating equipment adopts macromolecule and inorganic non-metal composite material to make, while standing high temperature, can ensure good effect of heat insulation.In pressure survey, force snesor of the present invention is directly positioned over below die cavity, in upper and lower mould closing course, directly can read measurement data, avoid the error produced because of the pressure loss in pressure transfer process.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of equipment:
Fig. 2 is that equipment dynamic source and power perform partial schematic diagram:
Fig. 3 is equipment cover half phantom view:
Fig. 4 is equipment cover half fragmentary front view:
Fig. 5 is equipment dynamic model phantom view:
Fig. 6 is equipment dynamic model fragmentary front view:
1---top board, 2---support column, 3---dynamic mould fixing plate, 4---leading screw fixed head, 5---base plate
A---cover half part, B---dynamic model part, C---power performs part, D---power source part
6---leading screw sleeve, 7---ball screw assembly, 8---ball-screw, 9---leading screw holder, 10---shaft coupling, 11---planetary reducers
26---cover half sealing cooling water channel, 27---vacuumize hole, 28---heating rod hole, 29---cover half water channel, 21---cover half fixed head, 22---solid plate, 23------cover half thermal insulation board, 25------little guide pillar, 39---leadout hole, 40---paddle hole, 41---wire guide, 42---dynamic model water channels of assembly 38 under cover half of assembly, 24 on cover half
31---dynamic model heating plate, 32---dynamic model coldplate, 33---seal groove, 34---dynamic model thermal insulation board, 35---moving platen, 36---force snesor, 37---sensor fixation plates.
Embodiment
The present invention is superpolymer vacuum sheeting equipment.
One-piece construction part of the present invention: hole and the support column 2 of top board 1 surrounding are positioned together by clearance fit, are fixed by nut.In like manner, base plate 5 and support 2 and located by clearance fit, is fixed by nut.Axle sleeve (not marking in figure) is inlayed in the inside, hole of dynamic mould fixing plate 3 surrounding, and is combined by interference fit, middle gapless.Axle sleeve and dynamic mould fixing plate 3 are located by clearance fit, ensure that dynamic mould fixing plate can be free to slide on support column 2.Leading screw fixed head 4 is combined by clearance fit and support column 2, and because leading screw fixed head 4 does not need to move up and down, so beat threaded hole around the hole of leading screw fixed head 4, mounting screw is fixed.
Power source part of the present invention is made up of planetary reducer 11 and servomotor (not marking in figure), and two assemblies are fixed together by flange.For saving height space, the present invention adopts right angle planetary reducer, and servomotor is positioned on the right side of planetary reducer.
Perform in part at power, leading screw sleeve 6 is combined by flange and ball screw assembly, 7, and both can realize synchronous axial system.The cooperation of ball-screw 8 and leading screw holder 9 inner bearing, is fixed together, and one end and the ball screw 8 of shaft coupling 10 are fixed together, and the axle of one end and planetary reducer 11 is fixed in addition.Such servomotor work drives planetary reducer 11 to rotate, and drives again ball screw 8 to rotate, and then drives ball screw assembly, 7 and leading screw sleeve 6 to move up and down, thus realizes moving up and down of dynamic mould fixing plate.Power is performed part and is connected with dynamic model part by dynamic mould fixing plate 3.
Cover half part of the present invention is fixed together by cover half fixed head 21 and top board 1.On solid plate 22, cover half, under assembly 23, cover half thermal insulation board 24 and cover half, assembly 25 is fixed together by long spiro nail.Coaxial for guaranteeing between each assembly, the design internal diameter of cover half thermal insulation board 24 strengthens, and thickness increases, by realizing accurately location between assembly 25 under assembly 23, cover half thermal insulation board 24 and cover half on height official post cover half.Cool because equipment needs to enclose seal element to O, therefore assembly 25 designs cover half sealing cooling water channel 26 under cover half.Because equipment operationally needs vacuum environment, therefore on cover half, on assembly 23, design vacuumizes hole 27.The heating rod be heated by heating rod hole 28 of this equipment cover half part realizes, and is cooled through cover half water channel 29 and realizes.
Dynamic model part moving platen 35 of the present invention, sensor fixation plate 37 are threaded connection with dynamic mould fixing plate 3 and are fixed together.The heating function of dynamic model is realized by the spiral heating silk in dynamic model heating plate 31, and the wire of heating element spiral heating silk is derived by wire guide 41.Refrigerating function is realized by the dynamic model water channel 42 in dynamic model coldplate 32, designs paddle hole 40 on dynamic model coldplate 32 simultaneously.Water inlet pipe and water outlet pipe and wire are derived in the lump by leadout hole 39.O encloses seal element and is arranged on dynamic model seal groove 33.The force measuring function of equipment is realized by force snesor 36, and force snesor 36 is installed on sensor fixation plate 37 by screw thread.Located by little guide pillar 38 between moving platen 35 and sensor fixation plate 37, moving platen 35 is in the positional precision up and down by a small margin in moving process.
There are a vacuum pump and PLC control system coordinating operation in outside of the present invention, does not mark in figure.
During equipment work, power source part (servomotor and planetary reducer 11) and power perform part associated working, and drive dynamic mould fixing plate 3 to move up, dynamic model part and cover half part form a closed cavity gradually.Now open the heating arrangement in dynamic model part and cover half part, the heating rod of cover half part and the spiral heating silk of dynamic model part work simultaneously, heat the polymkeric substance in cavity.After certain hour t, opening vacuum pump, vacuumizing by vacuumizing 27 pairs, hole cavity.While upper and lower mould heating, power source system and power actuation system task again, makes dynamic model assembly continue upwards to move by a small margin, starts to apply pressure.In this process, after vacuum tightness reaches certain setting numerical value, vacuum pump quits work automatically.After certain hour t, the cooling system of active and inactive mold part starts simultaneously, cools polymkeric substance.After being cooled to uniform temperature, power source system and power actuation system synergy, make dynamic model part move down, and takes out the polymkeric substance prepared.An operation cycle terminates.
Claims (6)
1. a superpolymer vacuum sheeting equipment, it is characterized in that, comprise four support columns, top board, dynamic model part, cover half part, power source part, power performs part, leading screw fixed head, base plate, four support columns pass through nut, be fixed on top board and base plate, top board and the end, locate on the support columns by clearance fit, dynamic model part is movably fixed on support column by the axle sleeve that dynamic mould fixing plate and dynamic mould fixing plate are inlayed, wherein said axle sleeve and dynamic mould fixing plate clearance fit location, dynamic model beneath portions is fixed on leading screw fixed head, leading screw fixed head is combined by clearance fit and support column, cover half part is fixed by cover half fixed head and top board, dynamic model part and cover half part are connected on support column, the power control dynamic model part that power execution part provides by power source part take support column as guiding and moves back and forth up and down on the support columns, dynamic model part moves up and cover half part forms closed cavity jointly, dynamic model part and cover half part are provided with the heat circulating system of the heating and cooling for Polymer Processing in cavity, and cover half part is connected with vacuum extractor.
2. a kind of superpolymer vacuum sheeting equipment according to claim 1, it is characterized in that: described dynamic model part comprises moving platen, force snesor, sensor fixation plate and heat circulating system, described moving platen, described force snesor and heat circulating system are fixed together, located by little guide pillar between moving platen and sensor fixation plate, the heating function of wherein said heat circulating system is realized by the spiral heating silk that dynamic model heating plate is arranged, the wire of spiral heating silk is derived by wire guide, the refrigerating function of described heat circulating system is realized by the chilled water of the dynamic model water channel arranged in dynamic model coldplate, dynamic model coldplate designs paddle hole, water inlet pipe and water outlet pipe and wire are derived in the lump by leadout hole.
3. a kind of superpolymer vacuum sheeting equipment according to claim 1 and 2, it is characterized in that: described cover half part comprises solid plate, cover half thermal insulation board, assembly under assembly and cover half on cover half, described solid plate, cover half thermal insulation board, on cover half, under assembly and cover half, assembly is fixed together by long spiro nail, the heat circulating system of cover half part to be arranged on cover half under assembly and cover half on assembly, the heating function of wherein said heat circulating system is realized by the heating rod in the heating rod hole on design assembly top on cover half, the refrigerating function of described heat circulating system, the refrigerating function of described heat circulating system is realized by the chilled water of the sealing cooling water channel of design under cover half in assembly, assembly is also provided with cover half and vacuumizes hole.
4. a kind of superpolymer vacuum sheeting equipment according to claim 3, it is characterized in that: described power source part comprises planetary reducer and servomotor, described planetary reducer and servomotor are fixed together by flange, and servomotor is positioned on the right side of planetary reducer.
5. a kind of superpolymer vacuum sheeting equipment according to claim 1 or 3 or 4, it is characterized in that: described power enforcement division is divided and comprised screw set cylinder, ball screw assembly, ball-screw, leading screw holder and shaft coupling, leading screw sleeve is combined by flange and ball screw assembly, both can realize synchronous axial system, the cooperation of ball-screw and leading screw holder inner bearing is fixed, one end and the ball screw of shaft coupling are fixed together, in addition one end and described power source partial fixing.
6. a kind of superpolymer vacuum sheeting equipment according to claim 5, is characterized in that: planetary reducer is right angle planetary reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192825.2A CN104749016B (en) | 2015-04-22 | 2015-04-22 | A kind of high polymer vacuum sheeting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192825.2A CN104749016B (en) | 2015-04-22 | 2015-04-22 | A kind of high polymer vacuum sheeting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104749016A true CN104749016A (en) | 2015-07-01 |
| CN104749016B CN104749016B (en) | 2018-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510192825.2A Active CN104749016B (en) | 2015-04-22 | 2015-04-22 | A kind of high polymer vacuum sheeting equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558015A (en) * | 1993-12-28 | 1996-09-24 | Hitachi Techno Engineering Co., Ltd. | Hot press with pressure vessels to uniformly distribute pressure to the work piece |
| US5582677A (en) * | 1992-10-16 | 1996-12-10 | Hitachi, Ltd. | Optical disk producing apparatus |
| JP2002096199A (en) * | 2000-09-19 | 2002-04-02 | Mikado Technos Kk | High vacuum drawing processing method and device by press device |
| JP2002192394A (en) * | 2000-12-28 | 2002-07-10 | Mitsubishi Gas Chem Co Inc | Press working method for inorganic substrate and press device therefor |
| CN1655924A (en) * | 2002-05-30 | 2005-08-17 | 米卡多科技株式会社 | Heating-type vacuum press device |
| CN202222336U (en) * | 2011-08-02 | 2012-05-23 | 广州金斧机电科技有限公司 | Sheet extruding die and continuous vacuum dough sheet pressing machine |
-
2015
- 2015-04-22 CN CN201510192825.2A patent/CN104749016B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5582677A (en) * | 1992-10-16 | 1996-12-10 | Hitachi, Ltd. | Optical disk producing apparatus |
| US5558015A (en) * | 1993-12-28 | 1996-09-24 | Hitachi Techno Engineering Co., Ltd. | Hot press with pressure vessels to uniformly distribute pressure to the work piece |
| JP2002096199A (en) * | 2000-09-19 | 2002-04-02 | Mikado Technos Kk | High vacuum drawing processing method and device by press device |
| JP2002192394A (en) * | 2000-12-28 | 2002-07-10 | Mitsubishi Gas Chem Co Inc | Press working method for inorganic substrate and press device therefor |
| CN1655924A (en) * | 2002-05-30 | 2005-08-17 | 米卡多科技株式会社 | Heating-type vacuum press device |
| CN202222336U (en) * | 2011-08-02 | 2012-05-23 | 广州金斧机电科技有限公司 | Sheet extruding die and continuous vacuum dough sheet pressing machine |
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| Publication number | Publication date |
|---|---|
| CN104749016B (en) | 2018-10-23 |
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