CN103675207A - Multifunctional loose material forming test device - Google Patents
Multifunctional loose material forming test device Download PDFInfo
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- CN103675207A CN103675207A CN201310629828.9A CN201310629828A CN103675207A CN 103675207 A CN103675207 A CN 103675207A CN 201310629828 A CN201310629828 A CN 201310629828A CN 103675207 A CN103675207 A CN 103675207A
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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 the compact formed test unit of feed manufacturing machine, Biomass Energy Utilization and field of solid waste treating technology, particularly a kind of bulk material.
Background technology
Compact formed technology refers to pushes technology that form, that have solid shape product by specific mould by loose material (as feed powder, crushed biomass or solid waste etc.) under certain pressure effect.Raw material is after compact formed, and its product is convenient to store, transports and is used, and has many advantages, has greatly promoted utilization factor and the range of application of raw material.For example the ring die pelletizing technology in compact formed technology extensively with regard to general for biomass solid shaping and feed processing technology field, can bulk material be made by this technology to the grain products needing through rotating roller roll compacting.
The application of compact formed technology in biomass molding fuel is produced: living beings refer to the various organisms that form 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 Shi Yige large agricultural country, has abundant biomass resource, and only agricultural crop straw just can be produced more than 700,000,000 ton every year.In < < Renewable Energy Development 12 planning > >, propose, to utilizing scale will reach 1,500 ten thousand tons in biomass fuel year in 2015, so 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 the feature of transportation and burning, be one of living beings developing direction of utilizing tool potentiality, by the important substitute that is fossil fuel.
The application of compact formed technology in production of fodder: feed industry, as the basic industry of national economy, has very important status in national economy.At present, China's forage yield has surpassed the U.S. becomes the first in the world production of fodder big country, and the ratio of feed industry total amount in national GDP surpassed 1.3%.In all hay varieties, the pellet that mash feed raw material is produced by compact formed technology has the features such as good palatability, convenient transportation, uses and the most extensively sends out.And the equipment of granulating is one of four large main frames of feed manufacturing machine, be the Core equipment of producing pellet, annual more than the 700000000 tons of mixed feeds in the whole world rely on the production of feed process unit completely, in whole feed industry industrial chain in irreplaceable core position.
In addition, compact formed technology also has application comparatively widely at aspects such as pharmacy and fertilizer production.But domestic compact formed equipment, particularly encircles mould molding equipment and compares with foreign same type equipment, still has 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.Yet the compact formed process more complicated of bulk material, is subject to various factors.For example, in biomass compact forming process, the factors such as raw material type, raw material water percentage, feed particles size, forming pressure, heating-up temperature, die size, dwell time and adjuvant all can, on affecting forming process, show as the impact on Forming Quality, moulding energy consumption and mould.Feed shaped article equally also can be subject to the combined action of the factors such as feed formula, modified time, 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, can not set up the basic data of system, this has brought very big difficulty to exploitation and the optimal design of compact formed Processes and apparatus, therefore need to design a kind of easy-to-use bulk material moulding test unit that facilitates.
Consult domestic and foreign literature, seldom, patent CN202192777U has mentioned a kind of powder pressure ball molding experimental die to the patent relevant with compact formed test unit, can be used for the test of powder pressure ball closed type forming, but mold form is fixed, only can suppress spherical product, and cannot change; Mould does not have heating function, tries the pressure of upper axial end when simultaneously can only pressure measurement processed, cannot meet the moulding testing requirements of feed, living beings and solid waste.Chinese scholars to the expansion of compact formed technology more research, in periodical literature, there is a small amount of report about bulk material moulding test unit: the people such as the Canadian Sa Sikaqiewen P.K.Adapa of university use single hole test unit to be studied the forming process of biological particles, and test unit as shown in Figure 1.The people such as the JensK.Holm of Technical University Of Denmark have adopted the test unit shown in Fig. 2 to test, and this device can carry out the single hole extrusion simulation test of powder; Domestic Wu Jingfeng has also adopted the test unit (cannot heating mould) of similar Fig. 2 to carry out alfalfa meal extrusion modling test.But the above-mentioned moulding test unit of mentioning only can adopt machine made mould to carry out material enclosed compacting test, mould cannot heat to simulate actual condition, the scope of application is less, and cannot test the radial pressure (radial force excessive may cause mold breakdown) while suppressing as mould of when compacting mould.
Summary of the invention
The object of the present invention is to provide a kind of multi-functional loose material forming test unit, the compact formed engineer testing that can be used for bulk material, this device can be realized open type and the enclosed compacting test under different material, different mould structure (diameter, length-diameter ratio, cone angle, entrance shape), different forming temperature and different shaping speed easily, and possess material precompressed and preheat function, simultaneously also can testing mould radial pressure during compacting, and can be applicable to multi-form external pressurized device.This device can be simulated the actual forming process of bulk material preferably, can provide foundation for exploitation and the optimization of the compact formed Processes and apparatus of bulk material.
The technical solution that realizes the object of the invention is:
A multi-functional loose material forming test unit, comprises compacting axle unit, preheating prepressing units, forming unit, discharging control module, adds thermal control units 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, sleeve back up pad and movable slider, forming unit comprises forming sleeve, mould, sleeve back-up 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, add thermal control units and comprise mold heating device, temperature controller and temperature sensor, support unit comprises base for supporting and support post.
Clamp axis is anchored on external pressurized device, and compacting axle links together by joint flange and clamp axis, precompressed sleeve is positioned at compacting axle lower end coaxial with it, preheating sleeve is arranged on outside precompressed sleeve, preheating sleeve is arranged on the reeded sleeve back up pad of tool top by sleeve base, movable slider upper surface contacts with precompressed sleeve bottom, 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 sleeve back-up block of both sides, the symmetria bilateralis of sleeve back-up block is arranged back-up block web joint, connecting stud is arranged on the both sides of sleeve back-up block, and vertical with back-up block web joint, connecting stud is through the back-up block web joint of sleeve back-up block both sides, by clamp nut and back-up block web joint, be connected, connecting stud and back-up block web joint are fastened on sleeve back-up block between connecting stud and back-up block web joint, radial force proving installation is installed on connecting stud, forming sleeve and sleeve back-up 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, in the middle of mould support plate, there is the stopper slot running through, 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 at respectively in the wall of preheating sleeve and forming sleeve, sleeve back up pad, 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) a kind of multi-functional loose material forming mould that test unit adopts relating in the present invention and compacting axle are replaceable structure, can change as required mold form, comprise and change aperture, length-diameter ratio, entrance cone angle and entrance shape.Can easily realize the compacting test of material under different conditions of molding, promote greatly the scope of application of such moulding test unit;
(2) a kind of multi-functional loose material forming test unit relating in the present invention divides three sections of designs, can realize precompressed preheating, moulding compacting and the discharging of material and control in same device, and pressing process is convenient and swift, and actual forming process approaches;
(3) the compact formed unit of a kind of multi-functional loose material forming test unit relating in the present invention is symmetria bilateralis Split type structure, the test of mould bearing radial force in the time of can realizing compacting;
(4) a kind of multi-functional loose material forming test unit relating in the present invention, by material controlling slide block being set in mould bottom, possessing open type compacting and enclosed pressing function simultaneously, and can switch easily;
(5) a kind of multi-functional loose material forming test unit relating in the present invention can be realized preheating sleeve and mould are heated by temperature control unit, and temperature can freely be adjusted.
(6) a kind of multi-functional loose material forming test unit relating in the present invention can be connected in 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 sleeve supporting plate structure schematic diagram of the present invention, (a) is the front view of this structure, is (b) vertical view of this structure.
Fig. 7 is the multi-functional loose material forming test unit mould support plate structure schematic diagram of the present invention, (a) is the front view of this structure, is (b) vertical view of this structure.
Fig. 8 is the multi-functional loose material forming test unit material controlling slide block structure schematic diagram of the present invention, (a) is the front view of this structure, is (b) vertical view of 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, (a) is the front view of this structure, is (b) vertical view of 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, (a) is column type, is (b) flat, is (c) screw-type.
Embodiment
In conjunction with Fig. 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, adds thermal control units 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, sleeve back up pad 9 and movable slider 24, forming unit comprises forming sleeve 21, mould 19, sleeve back-up 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, add thermal control units and comprise 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.
In conjunction with Fig. 5, compact formed unit radial force test method of the present invention is: foil gauge or corresponding pulling force sensor are arranged on connecting stud 10, and connecting stud 10 is divided into two groups, in the symmetria bilateralis of sleeve back-up block (20), arranges, the quantity of every group of 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 sleeve back-up 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 that 3～33mm, feedstock direction cone angle scope are generally 30～60 °, length-diameter ratio (ratio of nib length and diameter) is generally 3～12, and entrance shape is taper shape and circular arc.As need, change forming sleeve 21 and mould 19, only need unclamp nut, changed rear fastening.
In conjunction with Fig. 6, sleeve back up pad 9 of the present invention is middle part hollow-core construction, and hollow parts is shoulder hole, and aperture, upper end is larger, for installing and the support precompressed sleeve 6 that can slide up and down.
In conjunction with Fig. 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.Through mould support Ban 12 centers, have one to run through groove, for guaranteeing that material controlling slide block 13 slides along predetermined direction, realizes the switching of test unit open type compression and enclosed compression function.The aperture that has some along center position, for installation mold heating arrangement.
In conjunction with Fig. 8, material controlling slide block 13 1 sides of the present invention are through hole, and opposite side is solid construction, by the material controlling slide block 13 that slides in predetermined chute, can realize open type and enclosed pressing function.As need enclosed compression, a solid side of material controlling slide block 13 is aligned to mould 19 belows; Open type compression, through hole one side is aligned to mould 19 belows.
In conjunction with Fig. 9, material controlling slider support plate 14 of the present invention is notching construction, by backgauge live back up pad 14 centers open one and mould support plate 12 correspondences 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.
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 test of living beings fuel solidification, molding materials is rice straw, after drying, be cut to particle shape, granularity is between 5～15mm, water percentage is 15～20%, the diameter of shaped fuel is 33mm, investigates different shaping speeds, different mould structure and the impact of different forming pressure on molding effect.This embodiment to the requirement of test unit is: compacting axle 4 external diameters are 38mm, forming sleeve 21 internal diameters are 40mm, mould 19 internal diameters are that 33mm, taper charging aperture, charging cone angle are that 30 °, length-diameter ratio are 3, connecting stud 10 quantity are that 3 of the every sides of 6(are arranged symmetrically with), external pressurized device is universal testing machine.By external diameter, be that 38mm compacting axle 4 is flat by clamp axis 2() and joint flange 3 be connected in external pressurized equipment 1(universal testing machine) fixture in, mobile material blocking block 13 is placed in mould support plate 13 and the reserved chute of material controlling slider support plate 14 for supporting to mould.After this unclamp the nut at coupling bolt 10 two ends, the forming sleeve 21 that is 40mm by internal diameter and internal diameter are that 33mm, taper charging aperture, charging cone angle are that the mould 19 that 30 °, length-diameter ratio are 3 is arranged in sleeve back-up block 20, clamp nut after installation.Movable slider 24 is placed between forming sleeve 21 and precompressed sleeve 6.Temperature controller 17 is set in to predetermined temperature (110 ℃), utilizes mold heating device 18 to realize precompressed sleeve 6 and forming sleeve 21 heating, radial force proving installation is connected to data collector simultaneously and prepares to carry out data acquisition.After temperature reaches setting value (110 ℃), toward precompressed sleeve 6, add stalk material, after preheating certain hour, start omnipotent examination, the machine of testing drives compacting axle 4 to move downward with the speed (100mm/s) of setting, and 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.Moving material controlling slide block 13 is open type compacting state, and stalk material is extruded from material controlling slider support plate 14 lower ends after moulding in forming cavity, collects shaped granule and numbers and preserve.When 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, can again add materials as required and repeat compacting or change shaping speed to suppress.Open type changes position to the enclosed of material controlling slide block 13 and suppresses state (Figure 10 is apparatus of the present invention enclosed compacting view) after having suppressed, by aforementioned requirement, add stalk material and carry out preheating precompressed, universal testing machine is suppressed by predetermined press power, after arriving predetermined pressure, stop, universal testing machine and radial force proving installation are tested 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.
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 the impact on feed quality of different shaping speeds and refining temperature.This embodiment to the requirement of test unit is: compacting axle 4 external diameters are 8mm, forming sleeve 21 internal diameters are 10mm, mould 19 internal diameters are that 3mm, charging cone angle are that 60 °, length-diameter ratio are 12, and connecting stud 10 quantity are that 4 of the every sides of 8(are 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.By temperature controller 17 Temperature Settings, be 70 ℃, utilize mold heating device 18 to realize precompressed sleeve 6 and forming sleeve 21 heating, radial force proving installation is connected to data collector simultaneously and prepares to carry out data acquisition.After temperature reaches setting value (70 ℃), toward precompressed sleeve 6, add feed material, after preheating certain hour, start omnipotent examination, the machine of testing drives compacting axle 4 to move downward with the speed (100mm/s) of setting, and 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.Moving material controlling slide block 13 is open type compacting state, and feed material is extruded from material controlling slider support plate 14 lower ends after moulding in forming cavity, collects shaped granule and numbers and preserve.When 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, can again 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, by aforementioned requirement, add feed material and carry out preheating precompressed, the pressing speed that changes universal testing machine repeats compacting, and universal testing machine and radial force proving installation are tested displacement and the radial force variation situation of this process.After the compacting number of times of this process meets testing requirements, adjust the temperature (setting requirement by test raises) of temperature controller, after temperature constant, repeat above process until off-test.
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 the impact of mould structure on 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 diameters are 8mm, forming sleeve 21 internal diameters are 10mm, mould 19 internal diameters are that 3mm, arc entrance, length-diameter ratio are 10, connecting stud 10 quantity are that 3 of the every sides of 6(are arranged symmetrically with), external pressurized device is manual rotation pressue device, by rotary handle, drives screw motion to realize supply and the transmission of pressure.By external diameter, be that 8mm compacting axle 4 is by clamp axis 2(column type) and joint flange 3 be connected in 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 ends.By temperature controller 17 Temperature Settings, be 80 ℃, utilize mold heating device 18 to realize precompressed sleeve 6 and forming sleeve 21 heating, 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 ℃), toward precompressed sleeve 6, add feed material, after preheating certain hour, the handle of rotation pressue device drives compacting axle 4 to move 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.Moving material controlling slide block 13 is open type compacting state, and feed material is extruded from material controlling slider support plate 14 lower ends after moulding in forming cavity, collects shaped granule and numbers and preserve.When 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, can again add materials as required and repeat compacting.Open type switches to enclosed compacting state by embodiment 1 after having suppressed, and adds feed material carry out repeating compacting after preheating precompressed by aforementioned requirement, and pressure transducer 5 radial force proving installations are tested 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, add thermal control units 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), sleeve back up pad (9) and movable slider (24), forming unit comprises forming sleeve (21), mould (19), sleeve back-up 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), add thermal control units and comprise mold heating device (18), temperature controller (17) and temperature sensor (22), support unit comprises base for supporting (15) and support post (16),
It is upper that clamp axis (2) is anchored on external pressurized device (1), and compacting axle (4) links together by joint flange (3) and clamp axis (2), precompressed sleeve (6) is positioned at compacting axle (4) lower end coaxial with it, preheating sleeve (7) is arranged on outside precompressed sleeve (6), preheating sleeve (7) is arranged on the reeded sleeve back up pad of tool (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 of split (21) utilizes sleeve locating pin (23) to be individually fixed on the sleeve back-up block (20) of both sides, the symmetria bilateralis of sleeve back-up block (20) is arranged back-up block web joint (11), connecting stud (10) is arranged on the both sides of sleeve back-up block (20), and vertical with back-up block web joint (11), connecting stud (10) is through the back-up block web joint (11) of sleeve back-up block (20) both sides, by clamp nut and back-up block web joint (11), be connected, connecting stud (10) and back-up block web joint (11) are fastened on sleeve back-up block (20) between connecting stud (10) and back-up block web joint (11), the upper radial force proving installation (25) of installing of connecting stud (10), forming sleeve (21) and sleeve back-up 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, in the middle of mould support plate (12), there is the stopper slot running through, mould (19) is placed in forming sleeve (21) inside, 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 at respectively in the wall of preheating sleeve (7) and forming sleeve (21), sleeve back up pad (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. a kind of multi-functional loose material forming test unit according to claim 1, is characterized in that: described pressure transducer (5) is arranged on one end that compacting axle (4) contacts with material.
3. a kind of multi-functional loose material forming test unit 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 endwisely slip along preheating sleeve (7).
4. a kind of multi-functional loose material forming test unit 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, symmetria bilateralis at sleeve back-up block (20) is arranged, the quantity of every group of connecting stud (10) is N, N >=3.
5. a kind of multi-functional loose material forming test unit according to claim 1, it is characterized in that: described material controlling slide block (13) is strip, one side of strip is that through hole opposite side is solid construction, the lower end in contact of 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), can in the stopper slot of material controlling slider support plate (14) and mould support plate (12) formation, slide.
6. a kind of multi-functional loose material forming test unit according to claim 1, it is characterized in that: the described mold heating device (18) adding in thermal control units is distributed in the wall of preheating sleeve (7) and sleeve back-up block (20), it is interior apart from heating arrangement (18) 5 ± 2mm distances that temperature sensor (22) is arranged on sleeve back-up block (20), and temperature controller (17) is connected with heating arrangement (18), temperature sensor (22).
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| CN103983542A (en) * | 2014-05-09 | 2014-08-13 | 南京理工大学 | Powder space movement distribution research 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 |
| CN107036893A (en) * | 2017-05-31 | 2017-08-11 | 南京理工大学 | The compact formed process mechanical behavior test device of bulk material and its method of testing |
| CN108344439A (en) * | 2018-01-02 | 2018-07-31 | 江苏牧羊控股有限公司 | A kind of squeeze test device |
| CN113405904A (en) * | 2021-06-02 | 2021-09-17 | 南京理工大学 | Testing device for compression molding mechanical properties of loose materials |
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| CN103983542A (en) * | 2014-05-09 | 2014-08-13 | 南京理工大学 | Powder space movement distribution research 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 |
| CN107036893A (en) * | 2017-05-31 | 2017-08-11 | 南京理工大学 | The compact formed process mechanical behavior test device of bulk material and its method of testing |
| CN108344439A (en) * | 2018-01-02 | 2018-07-31 | 江苏牧羊控股有限公司 | A kind of squeeze test device |
| CN113405904A (en) * | 2021-06-02 | 2021-09-17 | 南京理工大学 | Testing device for compression molding mechanical properties of loose materials |
| 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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Application publication date: 20140326 Assignee: Jiangsu ornate food machinery Limited by Share Ltd Assignor: Nanjing University of Science and Technology Contract record no.: 2019320000093 Denomination of invention: Multifunctional loose material forming test device Granted publication date: 20150701 License type: Common License Record date: 20190404 |