CN103675207B - Multifunctional loose material forming test device - Google Patents
Multifunctional loose material forming test device Download PDFInfo
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- CN103675207B CN103675207B CN201310629828.9A CN201310629828A CN103675207B CN 103675207 B CN103675207 B CN 103675207B CN 201310629828 A CN201310629828 A CN 201310629828A CN 103675207 B CN103675207 B CN 103675207B
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Abstract
The invention discloses a multifunctional loose material forming test device which comprises a pressing shaft unit, a preheating and prepressing unit, a forming unit, a discharging control unit, a heating control unit and a supporting unit, wherein the pressing shaft unit comprises a pressing shaft, a connecting flange and a clamping shaft; the preheating and prepressing unit comprises a prepressing sleeve, a preheating sleeve, a sleeve base, a sleeve supporting plate and a movable slide block; the forming unit comprises a forming sleeve, a forming mould, sleeve supporting blocks, supporting block connecting plates, a mould supporting plate, sleeve positioning nails, radial force test devices and connecting studs; the discharging control unit comprises a material control slide block and a material control slide block supporting plate; the heating control unit comprises a mould heating device, a temperature controller and a temperature sensor; the supporting unit comprises a supporting base and supporting columns. The multifunctional loose material forming test device can achieve opened and closed press tests under different materials, mould structures, forming temperatures and forming speeds, and can provide a basis for development and optimization of dense forming process and equipment.
Description
Technical field
The invention belongs to feed manufacturing machine, Biomass Energy Utilization and field of solid waste treating technology, particularly a kind of compact formed test unit of bulk material.
Background technology
Compact formed technology refers to technology that extruded by specific mould under certain pressure effect by loose material (as feed powder, crushed biomass or solid waste etc.), that have solid shape product.Raw material is after compact formed, and its product is convenient to store, transport and use, and has many advantages, greatly improves utilization factor and the range of application of raw material.Such as, ring die pelletizing technology in compact formed technology is wide just general for biomass solid shaping and feed processing technology field, by this technology, bulk material is made the grain products of needs through rotating roller roll compacting.
The application of compact formed technology in biomass molding fuel is produced: living beings refer to the various organisms formed by photosynthesis, comprise agricultural crop straw, timber and forestry waste, city and industrial organic wastes and animal wastes etc., the biomass energy of its internal reservoir is the energy of a kind of environmental protection, clean and sustainable use.United Nations Development Programme, the world energy sources council are all classified as the first-selection of regenerative resource.China is a large agricultural country, has abundant biomass resource, and only agricultural crop straw just can produce more than 700,000,000 ton every year.Propose in " Renewable Energy Development 12 planning ", to utilizing scale will reach 1,500 ten thousand tons in biomass fuel year in 2015, therefore the recovery energy of living beings is subject to increasing attention.Biomass compact forming technology have cost low, be convenient to produce, and the density of shaped fuel and intensity higher, be convenient to transport and burning feature, being one of developing direction of biomass economy most potentiality, will be the important substitute of fossil fuel.
The application of compact formed technology in Feed Manufacturing: feed industry, as the basic industry of national economy, has very important status in national economy.At present, China's forage yield has exceeded the U.S. becomes the first in the world Feed Manufacturing big country, and the ratio of feed industry total amount in national GDP has exceeded 1.3%.In all hay varieties, mash feed raw material has the feature such as good palatability, convenient transportation by the pellet that compact formed technology is produced, and uses and the most extensively sends out.And equipment of granulating is one of four large main frames of feed manufacturing machine, be the Core equipment producing pellet, annual more than the 700000000 tons of mixed feeds in the whole world rely on feed manufacturing to equip completely and produce, in whole feed industry industrial chain, be in irreplaceable core position.
In addition, compact formed technology also has and applies comparatively widely in pharmacy and fertilizer production etc.But domestic compact formed equipment, particularly ring mould molding equipment is compared with foreign same type equipment, still there is the defects such as unreasonable structure, production efficiency is on the low side, energy consumption is higher.Therefore need to study compaction process, with the performance of lifting means.But the compact formed process more complicated of bulk material, by various factors.Such as, in biomass compact forming process, the factors such as raw material type, raw aqueous rate, feedstock Particle size, forming pressure, heating-up temperature, die size, dwell time and adjuvant all on affecting forming process, can show as the impact on Forming Quality, shaping energy consumption and mould.Feed shaped article equally also can be subject to the combined action of the factors such as feed formula, conditioning period, refining temperature and die size.If correlation test is all carried out on existing solidification equipment, test job will be very inconvenient, make test result poor accuracy, and can only test for specific type configuration, the basic data of system can not be set up, this brings extreme difficulties to the exploitation of compact formed Processes and apparatus and optimal design, therefore needs design one to facilitate easy-to-use bulk material molded test device.
Consult domestic and foreign literature, the patent relevant with compact formed test unit is little, and patent CN202192777U is referred to a kind of powder pressure ball molding experimental die, can be used for the test of powder pressure ball closed type forming, but die form is fixed, only can suppress spherical product, and cannot change; Mould does not have heating function, simultaneously can only try the pressure of upper axial end during pressure measurement, cannot meet the molded test requirement of feed, living beings and solid waste.Chinese scholars expands more research to compact formed technology, in periodical literature, there is a small amount of report about bulk material molded test device: the people such as Canadian Sa Sikaqiewen university P.K.Adapa use the forming process of single hole test unit to biological particles to be studied, and test unit as shown in Figure 1.The people such as the JensK.Holm of Technical University Of Denmark have employed the test unit shown in Fig. 2 and test, and this device can carry out the single hole extrusion simulation test of powder; The test unit (cannot heating mould) that domestic Wu Jingfeng also uses similar Fig. 2 has carried out the extruded test of alfalfa meal.But the above-mentioned molded test device mentioned only can adopt mould in fixed form to carry out material enclosed compacting test, mould cannot heat to simulate actual condition, the scope of application is less, and the radial pressure (as excessive in radial force when mould is suppressed may cause mold breakdown) of mould when cannot test compacting.
Summary of the invention
The object of the present invention is to provide a kind of multi-functional loose material forming test unit, can be used for the compact formed engineer testing of bulk material, this device can realize open type under different material, different mould structure (diameter, length-diameter ratio, cone angle, entrance shape), different forming temperature and different shaping speed and enclosed compacting test easily, and possess material precompressed and preheat function, simultaneously also can testing mould compacting time radial pressure, and multi-form external pressurized device can be applicable to.This device can simulate the actual forming process of bulk material preferably, can provide foundation for the exploitation of the compact formed Processes and apparatus of bulk material and optimization.
The technical solution realizing the object of the invention is:
A kind of multi-functional loose material forming test unit, comprises compacting axle unit, preheating prepressing units, forming unit, discharging control module, heat control unit and support unit; Wherein suppress axle unit and comprise compacting axle, joint flange and clamp axis, preheating prepressing units comprises precompressed sleeve, preheating sleeve, sleeve base, housing supports plate and movable slider, forming unit comprises forming sleeve, mould, housing supports block, back-up block web joint, mould support plate, sleeve locating pin, radial force proving installation and connecting stud, discharging control module comprises material controlling slide block and material controlling slider support plate, heat control unit comprises mold heating device, temperature controller and temperature sensor, and support unit comprises base for supporting and support post.
Clamp axis is anchored on external pressurized device, and compacting axle is linked together by joint flange and clamp axis, it is also coaxial with it that precompressed sleeve is positioned at compacting axle lower end, preheating sleeve is arranged on outside precompressed sleeve, preheating sleeve is arranged on tool reeded housing supports plate top by sleeve base, movable slider upper surface contacts with precompressed sleeve bottom end, lower surface is positioned at the forming sleeve upper end of compact formed unit, forming sleeve and mould are symmetrical Split type structure, the forming sleeve of split utilizes sleeve locating pin to be individually fixed on the housing supports block of both sides, the symmetria bilateralis of housing supports block arranges back-up block web joint, connecting stud is arranged on the both sides of housing supports block, and it is vertical with back-up block web joint, connecting stud is through the back-up block web joint of housing supports block both sides, be connected by clamp nut and back-up block web joint, housing supports block is fastened between connecting stud and back-up block web joint by connecting stud and back-up block web joint, connecting stud is installed radial force proving installation, forming sleeve and housing supports block are all arranged on mould support plate upper surface, back-up block web joint is arranged in the reserved locating slot in mould support plate upper surface, the stopper slot run through is had in the middle of mould support plate, mould is placed in forming sleeve inside, and lower surface and material controlling upper end of slide block face close contact, material controlling slide block lower end is positioned at the reserved chute of material controlling slider support plate, mold heating device is arranged in the wall of preheating sleeve and forming sleeve respectively, housing supports plate, mould support plate and material controlling slider support plate are anchored on support post, base for supporting is fastened on the bottom of support post.
The present invention compared with prior art, its remarkable advantage:
(1) the multi-functional loose material forming mould that test unit adopts of the one related in the present invention and compacting axle are replaceable structure, can change die form as required, comprise and change aperture, length-diameter ratio, entrance cone angle and entrance shape.The compacting test of material under different condition of molding can easily be realized, improve the scope of application of such molded test device greatly;
(2) the multi-functional loose material forming test unit of the one related in the present invention divides three sections of designs, and can realize the precompressed preheating of material, shaping compacting and discharging and control in same device, pressing process is convenient and swift, and actual forming process is close;
(3) the compact formed unit of a kind of multi-functional loose material forming test unit related in the present invention is symmetria bilateralis Split type structure, and when can realize suppressing, mould bears the test of radial force;
(4) the multi-functional loose material forming test unit of the one related in the present invention, by arranging material controlling slide block in mould bottom, possesses open type compacting and enclosed pressing function simultaneously, and can switch easily;
(5) the multi-functional loose material forming test unit of the one related in the present invention realizes preheating sleeve and mould heating by temperature control unit, and temperature can freely adjust.
(6) a kind of multi-functional loose material forming test unit related in the present invention can be connected to multi-form external pressurized device by clamp axis, comprises universal testing machine, hydropress etc., applied widely.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is existing compact formed test unit.
Fig. 2 is existing compact formed test unit.
Fig. 3 is the structural representation of the multi-functional loose material forming test unit embodiment 1 of the present invention.
Fig. 4 is A-A view of Fig. 3.
Fig. 5 is the multi-functional loose material forming test unit forming unit structural representation of the present invention.
Fig. 6 is the multi-functional loose material forming test unit housing supports plate structure schematic diagram of the present invention, the front view that (a) is this structure, the vertical view that (b) is this structure.
Fig. 7 is the multi-functional loose material forming test unit mould support plate structure schematic diagram of the present invention, the front view that (a) is this structure, the vertical view that (b) is this structure.
Fig. 8 is the multi-functional loose material forming test unit material controlling slide block structure schematic diagram of the present invention, the front view that (a) is this structure, the vertical view that (b) is this structure.
Fig. 9 is the multi-functional loose material forming test unit material controlling slider support plate structure schematic diagram of the present invention, the front view that (a) is this structure, the vertical view that (b) is this structure.
Figure 10 is the compressing schematic diagram of enclosed of the multi-functional loose material forming test unit embodiment 1 of the present invention.
Figure 11 is the structural representation of the multi-functional loose material forming test unit embodiment 2 of the present invention.
Figure 12 is the structural representation of the multi-functional loose material forming test unit embodiment 3 of the present invention.
Figure 13 is the multi-functional loose material forming test unit clamp axis structural representation of the present invention, and (a) is column type, and (b), for flat, (c) is screw-type.
Embodiment
Composition graphs 3 and Fig. 4:
A kind of multi-functional loose material forming test unit of the present invention comprises compacting axle unit, preheating prepressing units, forming unit, discharging control module, heat control unit and support unit, wherein suppress axle unit and comprise compacting axle 4, joint flange 3, pressure transducer 5 and clamp axis 2, preheating prepressing units comprises precompressed sleeve 6, preheating sleeve 7, sleeve base 8, housing supports plate 9 and movable slider 24, forming unit comprises forming sleeve 21, mould 19, housing supports block 20, back-up block web joint 11, mould support plate 12, sleeve locating pin 23, radial force proving installation 25 and connecting stud 10, discharging control module comprises material controlling slide block 13 and material controlling slider support plate 14, heat control unit comprises mold heating device 18, temperature controller 17 and temperature sensor 22, support unit comprises base for supporting 15 and support post 16.External pressurized device 1 is the external pressure source such as universal testing machine, hydropress, manual pressure device, and 26 is molding materials.
Clamp axis 2 is anchored on external pressurized device 1, and compacting axle 4 is linked together by joint flange 3 and clamp axis 2, it is also coaxial with it that precompressed sleeve 6 is positioned at compacting axle 4 lower end, preheating sleeve 7 is arranged on outside precompressed sleeve 6, preheating sleeve 7 is arranged on tool reeded housing supports plate 9 top by sleeve base 8, movable slider 24 upper surface contacts with precompressed sleeve 6 bottom, lower surface is positioned at forming sleeve 21 upper end of compact formed unit, preheating, movable slider 24 is removed after precompressed completes, now precompressed sleeve 6 lower end and forming sleeve 21 upper-end contact, forming sleeve 21 and mould 19 are symmetrical Split type structure, the forming sleeve 21 of split utilizes sleeve locating pin 23 to be individually fixed on the housing supports block 20 of both sides, the symmetria bilateralis of housing supports block 20 arranges back-up block web joint 11, connecting stud 10 is arranged on the both sides of housing supports block 20, and it is vertical with back-up block web joint 11, connecting stud 10 is through the back-up block web joint 11 of housing supports block 20 both sides, be connected by clamp nut and back-up block web joint 11, housing supports block 20 is fastened between connecting stud 10 and back-up block web joint 11 by connecting stud 10 and back-up block web joint 11, connecting stud 10 is installed radial force proving installation 25, forming sleeve 21 and housing supports block 20 are all arranged on mould support plate 12 upper surface, back-up block web joint 11 is arranged in the reserved locating slot in mould support plate 12 upper surface, the stopper slot run through is had in the middle of mould support plate 12, it is inner that mould 19 is placed in forming sleeve 21, and lower surface and material controlling slide block 13 upper surface close contact, material controlling slide block 13 lower end is positioned at the reserved chute of material controlling slider support plate 14, mold heating device 18 is arranged in the wall of preheating sleeve 7 and forming sleeve 21 respectively, housing supports plate 9, mould support plate 12 and material controlling slider support plate 14 are anchored on support post 16, base for supporting 15 is fastened on the bottom of support post 16.Realize the replacing as required of compacting axle 4 by joint flange 3, the diameter term of reference of compacting axle 4 axle is 5 ~ 38mm.
Composition graphs 5, compact formed unit radial force test method of the present invention is: be arranged on connecting stud 10 by foil gauge or corresponding pulling force sensor, connecting stud 10 is divided into two groups, arranges in the symmetria bilateralis of housing supports block (20), the quantity often organizing connecting stud 10 is N, N >=3.By connecting stud 10 and corresponding nut, the back up pad contiguous block 11 of both sides and housing supports block 20 are clamped, make forming sleeve 21 and mould 19 form a firmly right cylinder forming cavity (also can be designed to rectangular parallelepiped forming cavity).Forming sleeve 21 and mould 19 are replaceable structure, the inside diameter ranges that forming sleeve 21 is general is 5 ~ 40mm, the inside diameter ranges that mould is general is 3 ~ 33mm, feedstock direction cone angle scope is generally 30 ~ 60 °, length-diameter ratio (ratio of nib length and diameter) is generally 3 ~ 12, and entrance shape is conical and circular arc.As forming sleeve 21 and mould 19 need be changed, only need unclamp nut, change rear fastening.
Composition graphs 6, housing supports plate 9 of the present invention is middle part hollow-core construction, and hollow parts is shoulder hole, and aperture, upper end is comparatively large, for install and support can slide up and down precompressed sleeve 6.
Composition graphs 7, mould support plate 12 of the present invention is notching construction, and the symmetrical groove of certain depth is opened in the left and right sides, upper surface, and for location and installation back-up block web joint 11, a sulculus is reserved in groove lower end, right side, for auxiliary positioning back-up block web joint 11.Having one to run through groove through mould support Ban 12 center, for ensureing that material controlling slide block 13 slides along predetermined direction, realizing the switching of test unit open type compression and enclosed compression function.Centrally there is the aperture of some in direction, for installation mold heating arrangement.
Composition graphs 8, material controlling slide block 13 side of the present invention is through hole, and opposite side is solid construction, can realize open type and enclosed pressing function by the material controlling slide block 13 that slides in predetermined chute.As needed enclosed to compress, the solid side of material controlling slide block 13 is aligned to below mould 19; Open type compression, through hole side is aligned to below mould 19.
Composition graphs 9, material controlling slider support plate 14 of the present invention is notching construction, by backgauge live back up pad 14 center open one and mould support plate 12 correspondence there is the skewed slot of certain depth, for supporting and location material controlling slide block 13.
In conjunction with Figure 13, the bare terminal end of clamp axis 2 of the present invention has various structures form, can be connected on the external pressurized device 1 of different structure.In figure (a) be column type, (b) for flat, (c) be screw-type.
Embodiment 1
Fig. 3, Figure 10 are the structural representation of the multi-functional loose material forming test unit embodiment 1 of the present invention.
This embodiment is the compact formed test of biomass fuel, molding materials is rice straw, particle shape is cut to after drying, granularity is between 5 ~ 15mm, water percentage is 15 ~ 20%, the diameter of shaped fuel is 33mm, investigates different shaping speed, different mould structure and different forming pressure to the impact of molding effect.This embodiment to the requirement of test unit is: compacting axle 4 external diameter is 38mm, forming sleeve 21 internal diameter is 40mm, mould 19 internal diameter is 33mm, taper charging aperture, charging cone angle are 30 °, length-diameter ratio is 3, connecting stud 10 quantity is that 3, the every side of 6(is arranged symmetrically with), external pressurized device is universal testing machine.It is flat by clamp axis 2(by external diameter to be that 38mm suppresses axle 4) and joint flange 3 be connected to external pressurized equipment 1(universal testing machine) fixture in, mobile material blocking block 13 is placed in chute that mould support plate 13 and material controlling slider support plate 14 reserve and is used for supporting to mould.After this unclamping the nut at coupling bolt 10 two ends, is that the mould 19 that forming sleeve 21 and the internal diameter of 40mm is 33mm, taper charging aperture, charging cone angle are 30 °, length-diameter ratio is 3 is arranged in housing supports block 20 by internal diameter, clamp nut after installation.Movable slider 24 is placed between forming sleeve 21 and precompressed sleeve 6.Temperature controller 17 is set in predetermined temperature (110 DEG C), utilizes mold heating device 18 to realize heating precompressed sleeve 6 and forming sleeve 21, radial force proving installation is connected to data collector simultaneously and prepares to carry out data acquisition.After temperature reaches setting value (110 DEG C), add stalk material, after preheating certain hour, start omnipotent examination toward precompressed sleeve 6, machine of testing drives compacting axle 4 to move downward with the speed (100mm/s) of setting, realizes the compacting of material.After precompressed completes, remove movable slider 24, universal testing machine continues to drive compacting axle 4 to move downward, and stalk material is compressed into mould 19.Dynamic material controlling slide block 13 is open type compacting state, extrudes, collect shaped granule and numbering preservation after stalk material is shaping in forming cavity from material controlling slider support plate 14 lower end.While compacting starts, the situation of change of universal testing machine and the real time record displacement of radial force proving installation and pressure.After single has been suppressed, again can add materials as required and repeat compacting or change shaping speed to suppress.Open type changes material controlling slide block 13 position to enclosed after having suppressed suppresses state (Figure 10 is apparatus of the present invention enclosed compacting view), add stalk material by aforementioned claim and carry out preheating precompressed, by universal testing machine by the compacting of predetermined press power, stop after arriving predetermined pressure, universal testing machine and radial force proving installation test displacement and the radial force variation situation of this process.After the compacting number of times of this process meets testing requirements, unclamp and connect connecting stud 10, be replaced with mould 19, repeat above process until off-test.
Embodiment 2
Figure 11 is the structural representation of the multi-functional loose material forming test unit embodiment 2 of the present invention.
This embodiment is pig feed compacting test.Formula for pig forage is corn, 44.3%; Oil chaff, 13.5%; Dregs of beans, 10.5%; Maize alcohol stillage, 8%; Wheat bran, 10%; Digested tankage, 2%; The dish dregs of rice, 1%; Stone flour, 3%; Mixotrophism oil, 2%; Premix, 5.2%; Other, 0.5%.Particle diameter 3.0mm, the length-diameter ratio 12 of nib.Investigate different shaping speed and refining temperature to the impact of feed quality.This embodiment to the requirement of test unit is: compacting axle 4 external diameter is 8mm, forming sleeve 21 internal diameter is 10mm, mould 19 internal diameter is 3mm, charging cone angle is 60 °, length-diameter ratio is 12, and connecting stud 10 quantity is that 4, the every side of 8(is arranged symmetrically with), external pressurized equipment is universal testing machine.The compacting axle 4 of this structure, forming sleeve 21 and mould 19 are installed according to the step in embodiment 1.Temperature controller 17 temperature is set as 70 DEG C, utilizes mold heating device 18 to realize heating precompressed sleeve 6 and forming sleeve 21, radial force proving installation is connected to data collector simultaneously and prepares to carry out data acquisition.After temperature reaches setting value (70 DEG C), add feed material, after preheating certain hour, start omnipotent examination toward precompressed sleeve 6, machine of testing drives compacting axle 4 to move downward with the speed (100mm/s) of setting, realizes the compacting of material.After precompressed completes, remove movable slider 24, universal testing machine continues to drive compacting axle 4 to move downward, and feed material is compressed into mould 19.Dynamic material controlling slide block 13 is open type compacting state, extrudes, collect shaped granule and numbering preservation after feed material is shaping in forming cavity from material controlling slider support plate 14 lower end.While compacting starts, the situation of change of universal testing machine and the real time record displacement of radial force proving installation and pressure.After single has been suppressed, again can add materials as required and repeat compacting or change shaping speed to suppress.Open type switches to enclosed compacting state by embodiment 1 after having suppressed, add feed material by aforementioned claim and carry out preheating precompressed, the pressing speed changing universal testing machine repeats compacting, and universal testing machine and radial force proving installation test displacement and the radial force variation situation of this process.After the compacting number of times of this process meets testing requirements, the temperature (by test setting requirement rising) of adjustment temperature controller, after temperature constant, repeats above process until off-test.
Embodiment 3
Figure 12 is the structural representation of the multi-functional loose material forming test unit embodiment 3 of the present invention.
This embodiment is pig feed compacting test.Investigate different forming pressures and mould structure to the impact of feed quality.Formula for pig forage is corn, 44.3%; Oil chaff, 13.5%; Dregs of beans, 10.5%; Maize alcohol stillage, 8%; Wheat bran, 10%; Digested tankage, 2%; The dish dregs of rice, 1%; Stone flour, 3%; Mixotrophism oil, 2%; Premix, 5.2%; Other, 0.5%.Particle diameter 3.0mm, the length-diameter ratio 10 of nib.This embodiment to the requirement of test unit is: compacting axle 4 external diameter is 8mm, forming sleeve 21 internal diameter is 10mm, mould 19 internal diameter is 3mm, arc entrance, length-diameter ratio are 10, connecting stud 10 quantity is that 3, the every side of 6(is arranged symmetrically with), external pressurized device is manual rotation pressue device, drives screw motion to realize supply and the transmission of pressure by rotary handle.By external diameter be 8mm suppress axle 4 by clamp axis 2(column type) and joint flange 3 be connected to external pressurized equipment 1(manual pressure device) screw rod in, forming sleeve 21 and mould 19 are installed according to the step in embodiment 1.Pressure transducer 5 is mounted in the hole of compacting axle 4 front end.Temperature controller 17 temperature is set as 80 DEG C, utilizes mold heating device 18 to realize heating precompressed sleeve 6 and forming sleeve 21, radial force proving installation and pressure transducer 5 are connected to data collector simultaneously and prepare to carry out data acquisition.After temperature reaches setting value (80 DEG C), add feed material toward precompressed sleeve 6, after preheating certain hour, the handle strip dynamic pressure axle 4 of rotary presser device moves downward, and realizes the compacting of material.After precompressed completes, remove movable slider 24, continue rotary handle and drive compacting axle 4 to move downward, feed material is compressed into mould 19.Dynamic material controlling slide block 13 is open type compacting state, extrudes, collect shaped granule and numbering preservation after feed material is shaping in forming cavity from material controlling slider support plate 14 lower end.While compacting starts, the situation of change of pressure transducer 5 and the real time record displacement of radial force proving installation and pressure.After single has been suppressed, again can add materials as required and repeat compacting.Open type switches to enclosed compacting state by embodiment 1 after having suppressed, and add after feed material carries out preheating precompressed by aforementioned claim and repeat compacting, pressure transducer 5 radial force proving installation tests displacement and the radial force variation situation of this process.After the compacting number of times of this process meets testing requirements, change the mould 19 of different structure, repeat above process until off-test.
Claims (6)
1. a multi-functional loose material forming test unit, is characterized in that: comprise compacting axle unit, preheating prepressing units, forming unit, discharging control module, heat control unit and support unit, wherein suppress axle unit and comprise compacting axle (4), joint flange (3) and clamp axis (2), preheating prepressing units comprises precompressed sleeve (6), preheating sleeve (7), sleeve base (8), housing supports plate (9) and movable slider (24), forming unit comprises forming sleeve (21), mould (19), housing supports block (20), back-up block web joint (11), mould support plate (12), sleeve locating pin (23), radial force proving installation (25) and connecting stud (10), discharging control module comprises material controlling slide block (13) and material controlling slider support plate (14), heat control unit comprises mold heating device (18), temperature controller (17) and temperature sensor (22), support unit comprises base for supporting (15) and support post (16),
Clamp axis (2) is anchored on external pressurized device (1), and compacting axle (4) is linked together by joint flange (3) and clamp axis (2), it is also coaxial with it that precompressed sleeve (6) is positioned at compacting axle (4) lower end, preheating sleeve (7) is arranged on precompressed sleeve (6) outward, preheating sleeve (7) is arranged on tool reeded housing supports plate (9) top by sleeve base (8), movable slider (24) upper surface contacts with precompressed sleeve (6) bottom, lower surface is positioned at forming sleeve (21) upper end of compact formed unit, forming sleeve (21) and mould (19) are symmetrical Split type structure, the forming sleeve (21) of split utilizes sleeve locating pin (23) to be individually fixed on the housing supports block (20) of both sides, the symmetria bilateralis of housing supports block (20) arranges back-up block web joint (11), connecting stud (10) is arranged on the both sides of housing supports block (20), and it is vertical with back-up block web joint (11), connecting stud (10) is through the back-up block web joint (11) of housing supports block (20) both sides, be connected by clamp nut and back-up block web joint (11), housing supports block (20) is fastened between connecting stud (10) and back-up block web joint (11) by connecting stud (10) and back-up block web joint (11), connecting stud (10) is upper installs radial force proving installation (25), forming sleeve (21) and housing supports block (20) are all arranged on mould support plate (12) upper surface, back-up block web joint (11) is arranged in the reserved locating slot in mould support plate (12) upper surface, the stopper slot run through is had in the middle of mould support plate (12), it is inner that mould (19) is placed in forming sleeve (21), and lower surface and material controlling slide block (13) upper surface close contact, material controlling slide block (13) lower end is positioned at the reserved chute of material controlling slider support plate (14), mold heating device (18) is arranged in the wall of preheating sleeve (7) and forming sleeve (21) respectively, housing supports plate (9), mould support plate (12) and material controlling slider support plate (14) are anchored on support post (16), base for supporting (15) is fastened on the bottom of support post (16).
2. the multi-functional loose material forming test unit of one according to claim 1, is characterized in that: one end that described compacting axle (4) contacts with material is provided with pressure transducer (5).
3. the multi-functional loose material forming test unit of one according to claim 1, it is characterized in that: described compacting axle (4) diameter is less than the internal diameter of precompressed sleeve (6) and forming sleeve (21), precompressed sleeve (6) internal diameter is greater than forming sleeve (21) internal diameter, and precompressed sleeve (6) can slide axially along preheating sleeve (7).
4. the multi-functional loose material forming test unit of one according to claim 1, it is characterized in that: the radial force proving installation (25) on described connecting stud (10) is foil gauge or pulling force sensor, connecting stud (10) is divided into two groups, arrange in the symmetria bilateralis of housing supports block (20), the quantity often organizing connecting stud (10) is N, N >=3.
5. the multi-functional loose material forming test unit of one according to claim 1, it is characterized in that: described material controlling slide block (13) is strip, the side of strip is through hole opposite side is solid construction, end in contact under material controlling slide block (13) upper end and mould (19), lower end is positioned at the reserved chute of material controlling slider support plate (14), slides in the stopper slot that can form at material controlling slider support plate (14) and mould support plate (12).
6. the multi-functional loose material forming test unit of one according to claim 1, it is characterized in that: the mold heating device (18) in described heat control unit is distributed in the wall of preheating sleeve (7) and housing supports block (20), temperature sensor (22) is arranged on apart from heating arrangement (18) 5 ± 2mm distance in housing supports block (20), and temperature controller (17) is connected with heating arrangement (18), temperature sensor (22).
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| CN103983542B (en) * | 2014-05-09 | 2016-08-17 | 南京理工大学 | Powder body space motion distribution development test device |
| CN105092462A (en) * | 2014-05-21 | 2015-11-25 | 深圳市芭田生态工程股份有限公司 | Quick testing method and device for fertilizer agglomeration |
| CN107036893B (en) * | 2017-05-31 | 2019-06-25 | 南京理工大学 | The compact formed process mechanical behavior test device of bulk material and its test method |
| CN108344439A (en) * | 2018-01-02 | 2018-07-31 | 江苏牧羊控股有限公司 | A kind of squeeze test device |
| CN113405904B (en) * | 2021-06-02 | 2022-06-24 | 南京理工大学 | Testing device for compression molding mechanical properties of loose materials |
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| RU2041816C1 (en) * | 1992-06-10 | 1995-08-20 | Михаил Васильевич Бирюков | Method of making the profiled pressed articles and device for its realization |
| CN2518671Y (en) * | 2001-12-28 | 2002-10-30 | 南京理工大学 | Perforated metal carrier extrusion forming mould |
| BR0307213A (en) * | 2002-01-25 | 2005-04-26 | Ck Man Ab | Dynamic Forging Impact Energy Retention Machine |
| CN102152384A (en) * | 2011-01-12 | 2011-08-17 | 广州市五羊艺冠木业有限公司 | Continuous one-step forming press and applications thereof |
| CN202192777U (en) * | 2011-06-03 | 2012-04-18 | 山西太钢不锈钢股份有限公司 | Powder pressure ball molding experimental die |
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