CN115493941B - Fiber monofilament tensile testing device - Google Patents
Fiber monofilament tensile testing device Download PDFInfo
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- CN115493941B CN115493941B CN202211367792.7A CN202211367792A CN115493941B CN 115493941 B CN115493941 B CN 115493941B CN 202211367792 A CN202211367792 A CN 202211367792A CN 115493941 B CN115493941 B CN 115493941B
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- 239000000835 fiber Substances 0.000 title claims abstract description 69
- 238000009864 tensile test Methods 0.000 title claims abstract description 30
- 238000004804 winding Methods 0.000 claims description 58
- 238000003825 pressing Methods 0.000 claims description 23
- 239000011324 bead Substances 0.000 claims description 22
- 238000005520 cutting process Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 14
- 238000012360 testing method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000001112 coagulating effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of fiber monofilament tensile testing, in particular to a fiber monofilament tensile testing device, which comprises a back plate, wherein the lower end of the back plate is connected with a base plate, the upper end of the base plate is provided with a tensile mechanism, one side of the base plate is connected with an upper clamping box, the lower end of the upper clamping box is provided with a bottom plate, the outer side of the upper clamping box is movably provided with an upper box door, one side of the back plate is provided with a lower clamping box, the outer side of the lower clamping box is provided with a lower box door, the lower end of the lower clamping box is connected with the tensile mechanism, and the inner cavity of the upper clamping box is provided with an upper clamping framework.
Description
Technical Field
The invention relates to the technical field of fiber monofilament tensile test, in particular to a fiber monofilament tensile test device.
Background
The fiber has the advantages of high strength, high modulus, chemical medium resistance and the like, is widely applied to the fields of ocean engineering, rail transit, ship vehicles, aerospace and the like, is used as an important reinforcing material of a composite material, and has extremely critical performance indexes for the design, manufacture and application of the composite material, for example, strength and elastic modulus are important parameters for structural design of the composite material, a single fiber is used as a test object for fiber monofilament tensile performance test, and a test result for measuring the fiber monofilament tensile strength has important significance for researching the mechanical properties of the high-performance fiber and the composite material thereof.
In the existing measuring system, although the deformation measurement of single fiber is corrected, because of unavoidable influences such as loading and clamping devices of a testing machine, effective limiting and fixing of fiber monofilaments cannot be carried out, so that the fiber monofilaments are easy to fall off during detection, the detection effect is affected, and the use is inconvenient.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides the fiber monofilament tensile testing device which has the advantages of being convenient to stably limit and clamp the fiber monofilament in the up-down firm process, avoiding the phenomenon that the fiber monofilament is easy to fall off during detection, affecting the detection effect, effectively improving the tensile testing effect, being convenient to use and the like.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a fiber monofilament tensile testing device, includes the backplate, the lower extreme of backplate is connected with the base plate, stretching mechanism is installed to the upper end of base plate, the centre gripping case is connected to the upper end of backplate, the lower extreme of going up the centre gripping case is provided with the bottom plate, go up the outside movable mounting of centre gripping case has the upper chamber door, the lower extreme of backplate is provided with down the centre gripping case, the outside of holding case is provided with down the chamber door down, the lower extreme of holding case is connected with stretching mechanism down, the inner chamber of going up the centre gripping case is provided with clamping frame, the inner chamber of holding case is provided with down clamping mechanism down.
Further, go up the centre gripping framework including winding post, fixed subassembly and winding groove, the winding post sets up in the upper end of bottom plate, just the winding post is located the inner chamber of last centre gripping case, fixed subassembly sets up the inner chamber top at last centre gripping case, fixed subassembly is pegged graft mutually with the winding post, the outside of winding post is provided with the winding groove.
Further, fixed subassembly is including electric putter, Z type connecting plate, inserted column and jack-up post, electric putter installs on the inner chamber top of last centre gripping case, the upper end of winding post is provided with the circular slot, the upper end of winding post is provided with the second slot, electric putter's lower extreme is connected with the jack-up post of pegging graft mutually with the circular slot through the output pole, electric putter is connected with Z type connecting plate through the output pole, the lower extreme of Z type connecting plate is connected with the inserted column of pegging graft mutually with the second slot.
Further, the upper end of the bottom plate is provided with an annular groove, and the lower end of the winding column is provided with an annular sliding sleeve which is in sliding connection with the winding column in opposite directions.
Further, the inner chamber of winding post is provided with the standing groove that is linked together with the winding post, the inner chamber of standing groove is provided with the fixed plate, the upper end of fixed plate is connected with the inner chamber top of standing groove through the spring all around, the inner chamber of bottom plate is provided with T type groove, the lower extreme of fixed plate runs through the winding post through the rectangle piece and extends to the inner chamber of T type groove, the both sides of rectangle piece are provided with first slot, the inner chamber both sides of T type groove all are connected with the cutting that peg graft mutually with first slot through the spring rod.
Further, the upper end of bottom plate is provided with the third through-hole, the upper end of third through-hole is provided with the second and glues the pearl, the upper end of going up the centre gripping case is provided with the second through-hole, the upper end of second through-hole is provided with first and glues the pearl.
Further, a sliding groove is formed in the outer side of the backboard, and T-shaped blocks which are in sliding connection with the lower clamping box are symmetrically arranged on the outer side of the lower clamping box.
Further, the upper end of lower centre gripping case is provided with the fourth through-hole, the inner chamber of fourth through-hole is provided with the third and glues the pearl, one side of lower centre gripping case is provided with first through-hole, the inner chamber of lower centre gripping case is provided with the dog with its position assorted, the inner chamber of dog is provided with the fourth and glues the pearl.
Further, fixture is including screw thread post, arc clamp plate, indent, clamp splice and fastening strip down, two the screw thread post all runs through down the centre gripping case and extends to its inner chamber swing joint arc clamp plate, one side of arc clamp plate is provided with the indent, the inner chamber both ends of lower centre gripping case all are provided with the clamp splice with arc clamp plate position assorted, the lower extreme of clamp splice all is provided with the fastening strip with indent assorted, the fastening strip is made for rubber materials.
Further, stretching mechanism is including pneumatic cylinder, clamp plate, spliced pole, backup pad, support column, bearing plate and pressure sensor, the upper end at the base plate is installed to the pneumatic cylinder, the lower extreme at the centre gripping case is installed to the spliced pole, four support columns are connected through the backup pad to the lower extreme of spliced pole, the bearing plate is connected to the lower extreme of support column, the upper end equidistance of bearing plate sets up three pressure sensor, the pneumatic cylinder runs through the bearing plate and extends to its top through the hydraulic stem and connects the clamp plate, the lower extreme equidistance of clamp plate is provided with three pressure posts with pressure sensor position assorted.
The fiber monofilament stretching test device provided by the invention has the beneficial effects that:
1. the fiber monofilaments are fixed by injecting the coagulating glue at the upper ends of the second through hole and the third through hole and forming the first glue beads and the second glue beads, and the coagulating glue is injected into the inner cavities of the fourth through hole and the stop block and forming the third glue beads and the fourth glue beads, so that the effect of fixing the fiber monofilaments can be effectively achieved;
2. the electric push rod downwards drives the jacking column, the Z-shaped connecting plate and the inserting column at the lower end of the Z-shaped connecting plate to downwards and synchronously move through the output shaft, so that the jacking column is inserted into the inner cavity of the circular groove, the inserting column is inserted into the inner cavity of the second slot, the winding column is conveniently fixed, after the jacking column downwards moves, the cutting is pushed by the rebound force released by the compressed spring rod, the cutting is further clamped in the inner cavity of the first slot, the winding column is conveniently further fixed, the fixing effect on the fiber monofilaments is effectively improved, and therefore the winding column is conveniently and stably subjected to a tensile test;
3. after passing through the indent on two arc clamp plates through the fibre monofilament, rethread rotatory screw thread post, two screw thread posts are removed towards the direction in opposite directions, and then drive two arc clamp plates and remove towards the direction in opposite directions, the arc clamp plate of being convenient for removes until laminating with the clamp splice, and the fastening strip on the clamp splice is tightly detained the inner chamber at the indent and is carried out the centre gripping to the fibre monofilament, and two arc clamp plates are removed and are fixed towards two upper and lower directions respectively, tight to the fibre monofilament ten times, the effectual effect that has improved the centre gripping fibre monofilament.
Drawings
FIG. 1 is a schematic view of the overall perspective structure of a fiber monofilament tensile testing device according to the present invention;
FIG. 2 is a schematic diagram showing the internal three-dimensional structure of a fiber monofilament tensile testing device according to the present invention;
FIG. 3 is a schematic view of a fiber monofilament tensile testing device according to the present invention;
FIG. 4 is a schematic diagram showing a semi-sectional perspective structure of an upper clamping box of a fiber monofilament tensile testing device according to the present invention;
FIG. 5 is a schematic diagram showing a semi-sectional three-dimensional bottom view of an upper clamping box of a fiber monofilament tensile testing device according to the present invention;
FIG. 6 is a schematic diagram showing a semi-sectional perspective structure of an upper clamping box of a fiber monofilament tensile testing device according to the present invention;
FIG. 7 is a schematic perspective view of a fixing assembly of a fiber monofilament tensile testing device according to the present invention;
FIG. 8 is a schematic diagram showing a semi-sectional perspective structure of a winding column of a fiber monofilament tensile testing device according to the present invention;
FIG. 9 is a schematic diagram showing the internal three-dimensional structure of a lower holding box of a fiber monofilament tensile testing device according to the present invention;
FIG. 10 is a schematic perspective view of a lower clamping mechanism of a fiber monofilament tensile testing device according to the present invention;
fig. 11 is a schematic diagram of a three-dimensional splitting structure of a stretching mechanism of a fiber monofilament stretching test device according to the present invention.
In the figure: the back plate 1, the upper clamping case 2, the bottom plate 3, the lower clamping case 4, the stretching mechanism 5, the hydraulic cylinder 51, the pressing plate 52, the pressing column 53, the connecting column 54, the supporting plate 55, the supporting column 56, the bearing plate 57, the pressure sensor 58, the upper clamping frame 6, the winding column 61, the fixing component 62, the electric push rod 621, the Z-shaped connecting plate 622, the inserting column 623, the ejecting column 624, the annular sliding sleeve 63, the T-shaped groove 64, the inserting strip 65, the spring rod 66, the rectangular block 67, the winding groove 68, the annular groove 69, the circular groove 610, the placing groove 611, the fixing plate 612, the spring 613, the first inserting groove 614, the second inserting groove 615, the lower clamping mechanism 7, the threaded column 71, the arc-shaped pressing plate 72, the pressing groove 73, the clamping block 74, the fastening strip 75, the base plate 8, the upper box door 9, the lower box door 10, the first rubber bead 11, the second rubber bead 12, the third rubber bead 13, the T-shaped block 14, the sliding groove 15, the first through hole 16, the second through hole 17, the third through hole 18, the fourth through hole 19, the fourth rubber bead 20 and the stopper 21.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-11, a fiber monofilament tensile testing device comprises a back plate 1, wherein the lower end of the back plate 1 is connected with a base plate 8,
the upper end of the backboard 1 is connected with the upper clamping box 2, the lower end of the upper clamping box 2 is provided with a bottom plate 3, the outer side of the upper clamping box 2 is movably provided with an upper box door 9, the lower end of the backboard 1 is provided with a lower clamping box 4, the outer side of the lower clamping box 4 is provided with a lower box door 10, the lower end of the lower clamping box 4 is connected with the stretching mechanism 5, the inner cavity of the upper clamping box 2 is provided with an upper clamping framework 6, the upper clamping framework 6 comprises a winding column 61, a fixing component 62 and a winding groove 68, the winding column 61 is arranged at the upper end of the bottom plate 3, the winding column 61 is positioned in the inner cavity of the upper clamping box 2, the fixing component 62 is arranged at the top end of the inner cavity of the upper clamping box 2, the fixing component 62 is spliced with the winding column 61, the outer side of the winding column 61 is provided with a winding groove 68, the fixing component 62 comprises an electric push rod 621, a Z-shaped connecting plate 622, a plug 623 and a jack 624, the electric push rod 621 is arranged at the top end of the inner cavity of the upper clamping box 2, the upper end of the winding column 61 is provided with a round groove 610, the upper end of the winding column 61 is provided with a second slot 615, the lower end of the electric push rod 621 is connected with a jack post 624 which is spliced with the round groove 610 through an output rod, the electric push rod 621 is connected with a Z-shaped connecting plate 622 through the output rod, the lower end of the Z-shaped connecting plate 622 is connected with a inserting column 623 which is spliced with the second slot 615, the inner cavity of the winding column 61 is provided with a placing groove 611 which is communicated with the winding column 61, the inner cavity of the placing groove 611 is provided with a fixed plate 612, the periphery of the upper end of the fixed plate 612 is connected with the top end of the inner cavity of the placing groove 611 through a spring 613, the inner cavity of the bottom plate 3 is provided with a T-shaped groove 64, the lower end of the fixed plate 612 penetrates through the winding column 61 through a rectangular block 67 and extends to the inner cavity of the T-shaped groove 64, two sides of the rectangular block 67 are provided with a first slot 614, the two sides of the inner cavity of the T-shaped groove 64 are connected with the cutting 65 which is spliced with the first slot 614 through the spring rod 66, the upper end of the bottom plate 3 is provided with the annular groove 69, the lower end of the winding column 61 is provided with the annular sliding sleeve 63 which is in opposite sliding connection with the winding column, the upper end of the bottom plate 3 is provided with the third through hole 18, the upper end of the third through hole 18 is provided with the second rubber bead 12, the upper end of the upper clamping box 2 is provided with the second through hole 17, the upper end of the second through hole 17 is provided with the first rubber bead 11, one end of the fiber monofilament is wound along the winding groove 68 outside the winding column 61 after passing through the third through hole 18 and then is exposed after passing through the second through hole 17, the upper ends of the second through hole 17 and the third through hole 18 are injected with solidified rubber to form the first rubber bead 11 and the second rubber bead 12, the fiber monofilament is fixed, the fiber monofilament fixing effect is effectively improved, and simultaneously, the output rod is driven to move downwards by the electric push rod 621, so that the push rod 624, the Z-shaped connecting plate 622 and the inserting columns 623 at the lower end of the push rod are driven to move downwards synchronously, the push rod 624 is inserted into the inner cavity of the circular groove 610, the inserting columns 623 are inserted into the inner cavity of the second inserting groove 615, the winding column 61 is convenient to fix, the winding column 61 is prevented from sliding in the inner cavity of the annular groove 69 through the annular sliding sleeve 63, the fiber monofilaments are driven to move, further fixing is facilitated, the push rod 624 moves downwards, the fixing plate 612 is extruded downwards by the push rod 624, the fixing plate 612 drives the rectangular block 67 to move downwards through the stretching spring 613, the rectangular block 67 extrudes two cutting 65 in the inner cavity of the T-shaped groove 64 after moving downwards, the cutting 65 is convenient to move backwards through the compression spring rod 66, when the rectangular block 67 moves downwards continuously, the cutting 65 and the first inserting groove 614 are positioned at the same position, at this time, the cutting 65 is pushed by the repulsive force released by the compressed spring rod 66, so that the cutting 65 is clamped in the inner cavity of the first slot 614, further fixing of the winding column 61 is facilitated, the fixing effect on the fiber monofilaments is effectively improved, and stable tensile testing is facilitated.
The inner cavity of the lower clamping box 4 is provided with a lower clamping mechanism 7, the outer side of the backboard 1 is provided with a sliding groove 15, the outer side of the lower clamping box 4 is symmetrically provided with T-shaped blocks 14 which are in sliding connection with the lower clamping box 4, the lower clamping box 4 can conveniently move up and down, the tensile test of mechanical energy fiber monofilaments pulled downwards by the stretching mechanism 5 is facilitated, the upper end of the lower clamping box 4 is provided with a fourth through hole 19, the inner cavity of the fourth through hole 19 is provided with a third rubber bead 13, one side of the lower clamping box 4 is provided with a first through hole 16, the inner cavity of the lower clamping box 4 is provided with a stop block 21 matched with the position of the lower clamping box 4, the inner cavity of the stop block 21 is provided with a fourth rubber bead 20, the lower clamping mechanism 7 comprises a threaded column 71, an arc pressing plate 72, a pressing groove 73, a clamping block 74 and a fastening strip 75, the two threaded columns 71 penetrate the lower clamping box 4 and extend to the inner cavity of the lower clamping box to be movably connected with the arc pressing plate 72, the clamping blocks 74 matched with the positions of the arc-shaped pressing plates 72 are arranged at two ends of the inner cavity of the lower clamping box 4, the fastening strips 75 matched with the clamping grooves 73 are arranged at the lower ends of the clamping blocks 74, the fastening strips 75 are made of rubber materials, the other ends of the fiber monofilaments pass through the fourth through holes 19 and the first through holes 16, and the solidification glue is injected into the inner cavities of the fourth through holes 19 and the check blocks 21 to form the third glue beads 13 and the fourth glue beads 20, so that the effect of fixing the fiber monofilaments is conveniently and effectively achieved, the fiber monofilaments pass through the clamping grooves 73 on the two arc-shaped pressing plates 72, the two threaded columns 71 move towards opposite directions after rotating the threaded columns 71, the two arc-shaped pressing plates 72 are driven to move towards opposite directions, the arc-shaped pressing plates 72 are conveniently moved until the fiber monofilaments are attached to the clamping blocks 74, the fastening strips 75 on the clamping blocks 74 are tightly buckled in the inner cavity of the pressing groove 73 to clamp the fiber monofilaments, and the two arc-shaped pressing plates 72 are respectively moved and fixed in the upper direction and the lower direction, so that the fiber monofilaments are tightly tightened, the effect of clamping the fiber monofilaments is effectively improved, the fiber monofilaments can be stably tested conveniently, and the testing accuracy is improved.
The upper end of base plate 8 installs stretching mechanism 5, stretching mechanism 5 includes pneumatic cylinder 51, clamp plate 52, pressure post 53, spliced pole 54, backup pad 55, support column 56, bearing plate 57 and pressure sensor 58, the upper end at base plate 8 is installed to pneumatic cylinder 51, the lower extreme at lower centre gripping case 4 is installed to spliced pole 54, four support columns 56 are connected through backup pad 55 to the lower extreme of spliced pole 54, bearing plate 57 is connected to the lower extreme of support column 56, the upper end equidistance of bearing plate 57 sets up three pressure sensor 58, pneumatic cylinder 51 runs through bearing plate 57 and extends to its top through the hydraulic stem and connects clamp plate 52, the lower extreme equidistance of clamp plate 52 is provided with three pressure post 53 with pressure sensor 58 position assorted, after the hydraulic stem is contracted down to the hydraulic stem, the hydraulic stem drives clamp plate 52 and pressure post 53 down, and pressure post 53 pushes up on the pressure sensor 58 on bearing plate 57, and bearing plate 57 is connected with lower centre gripping case 4 through support column 56, and backup pad 55 and spliced pole 54, and the tensile force that bears on the pressure sensor 58 is equivalent to the fibre monofilament, the tensile force that carries, the test is convenient for carry out effectively, test is carried out.
Working principle: the invention is controlled and connected with the electric push rod 621, the hydraulic cylinder 51 and the pressure sensor 58 through the external controller, and when in operation, by opening the upper box door 9 and the lower box door 10, one end of the fiber monofilament is wound along the winding groove 68 outside the winding column 61 after passing through the third through hole 18 and then exposed after passing through the second through hole 17, and the solidified glue is injected into the upper ends of the second through hole 17 and the third through hole 18 to form the first glue bead 11 and the second glue bead 12, the fiber monofilament is fixed, the fixing effect of the fiber monofilament is effectively improved, meanwhile, the electric push rod 621 drives the output rod to move downwards, and then drives the jacking column 624, the Z-shaped connecting plate 622 and the inserting column 623 at the lower end of the output rod to move downwards synchronously, so that the jacking column 624 is inserted into the inner cavity of the round groove 610, and the inserting column 623 is inserted into the inner cavity of the second inserting groove 615, the winding column 61 is convenient to fix, the winding column 61 is prevented from sliding in the inner cavity of the annular groove 69 through the annular sliding sleeve 63, the fiber monofilaments are further fixed, the supporting column 624 downwards extrudes the fixing plate 612 while downwards moving, the fixing plate 612 further drives the rectangular block 67 downwards through the extension spring 613, the rectangular block 67 conveniently extrudes two cutting strips 65 in the inner cavity of the T-shaped groove 64 after downwards moving, the cutting strips 65 are convenient to backwards move through the compression spring rod 66, when the rectangular block 67 continuously moves downwards, the cutting strips 65 are positioned at the same position with the first slot 614, at the moment, the cutting strips 65 are pushed by the reverse elastic force released by the compressed spring rod 66, the cutting strips 65 are clamped in the inner cavity of the first slot 614, the winding column 61 is further fixed conveniently, the fiber monofilaments fixing effect is effectively improved, thereby make things convenient for its stable tensile test that carries out, pass the other end of fibre monofilament again and fourth through-hole 19 and first through-hole 16, and through the inner chamber at fourth through-hole 19 and dog 21 is poured into the solidification glue and is formed third glued pearl 13 and fourth glued pearl 20, be convenient for effectually play the effect fixed to the fibre monofilament, and pass the indent 73 on two arc clamp plates 72 through the fibre monofilament, after rethread rotatory screw post 71, two screw posts 71 are moved towards the opposite direction, and then drive two arc clamp plates 72 and move towards the opposite direction, be convenient for arc clamp plate 72 remove until laminating with clamp splice 74, and fastening strip 75 on clamp splice 74 is tightly detained the inner chamber at indent 73 and is carried out the centre gripping to the fibre monofilament, and two arc clamp plates 72 remove and fix towards two upper and lower directions respectively, the tight of ten minutes of fibre monofilament has effectively improved the effect of centre gripping fibre monofilament, be convenient for its stable test, improve the precision of test, finally, after the hydraulic stem drives clamp plate 52 and clamp plate 53 down towards the opposite direction, and clamp plate 53 moves down towards the clamp plate 53, and the pressure transducer 57 is carried out on the support post 58 through the clamp plate, and the support post 58 is convenient for the test, and the bearing force of the support post is connected with the support post 58, and is convenient for the test is carried out, and the support post is connected with the clamp plate 58, and is convenient for the clamp pad has been connected with the clamp pad and has been stretched clamp pad 53.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The fiber monofilament tensile testing device comprises a back plate (1), and is characterized in that the lower end of the back plate (1) is connected with a base plate (8), a tensile mechanism (5) is arranged at the upper end of the base plate (8), the upper end of the back plate (1) is connected with an upper clamping box (2), and the lower end of the back plate (1) is provided with a lower clamping box (4); the lower end of the upper clamping box (2) is provided with a bottom plate (3), the upper end of the bottom plate (3) is provided with a third through hole (18), the upper end of the third through hole (18) is provided with a second rubber bead (12), the upper end of the upper clamping box (2) is provided with a second through hole (17), and the upper end of the second through hole (17) is provided with a first rubber bead (11); an upper box door (9) is movably arranged on the outer side of the upper clamping box (2), a lower box door (10) is arranged on the outer side of the lower clamping box (4), the lower end of the lower clamping box (4) is connected with the stretching mechanism (5), an upper clamping mechanism (6) is arranged in the inner cavity of the upper clamping box (2), and a lower clamping mechanism (7) is arranged in the inner cavity of the lower clamping box (4);
the upper clamping mechanism (6) comprises a winding column (61), a fixing component (62) and a winding groove (68), wherein the winding column (61) is arranged at the upper end of the bottom plate (3), the winding column (61) is positioned in the inner cavity of the upper clamping box (2), the fixing component (62) is arranged at the top end of the inner cavity of the upper clamping box (2), the fixing component (62) is spliced with the winding column (61), and the winding groove (68) is arranged at the outer side of the winding column (61); the fixing assembly (62) comprises an electric push rod (621), a Z-shaped connecting plate (622), an inserting column (623) and a jacking column (624), wherein the electric push rod (621) is arranged at the top end of an inner cavity of the upper clamping box (2), a round groove (610) is formed in the upper end of the winding column (61), a second inserting groove (615) is formed in the upper end of the winding column (61), the jacking column (624) which is inserted into the round groove (610) is connected to the lower end of the electric push rod (621) through an output rod, the Z-shaped connecting plate (622) is connected to the electric push rod (621) through the output rod, and the inserting column (623) which is inserted into the second inserting groove (615) is connected to the lower end of the Z-shaped connecting plate (622);
lower fixture (7) is including screw thread post (71), arc clamp plate (72), indent (73), clamp splice (74) and fastening strip (75), two screw thread post (71) all run through down centre gripping case (4) and extend to its inner chamber swing joint arc clamp plate (72), one side of arc clamp plate (72) is provided with indent (73), the inner chamber both ends of lower centre gripping case (4) all are provided with clamp splice (74) with arc clamp plate (72) position assorted, the lower extreme of clamp splice (74) all is provided with indent (73) assorted fastening strip (75), fastening strip (75) are the rubber materials and make.
2. A fiber monofilament tensile testing device according to claim 1, characterized in that the upper end of the base plate (3) is provided with an annular groove (69), and the lower end of the winding column (61) is provided with an annular sliding sleeve (63) sliding against the winding column.
3. The fiber monofilament tensile testing device according to claim 2, wherein the inner cavity of the winding column (61) is provided with a placing groove (611) communicated with the winding column (61), the inner cavity of the placing groove (611) is provided with a fixing plate (612), the periphery of the upper end of the fixing plate (612) is connected with the top end of the inner cavity of the placing groove (611) through a spring (613), the inner cavity of the bottom plate (3) is provided with a T-shaped groove (64), the lower end of the fixing plate (612) penetrates through the winding column (61) through a rectangular block (67) and extends to the inner cavity of the T-shaped groove (64), two sides of the inner cavity of the rectangular block (67) are provided with first slots (614), and two sides of the inner cavity of the T-shaped groove (64) are connected with cutting bars (65) which are spliced with the first slots (614) through spring rods (66).
4. A fiber monofilament tensile testing device according to claim 1, characterized in that the outside of the back plate (1) is provided with a chute (15), and the outside of the lower clamping box (4) is symmetrically provided with a T-shaped block (14) which is in sliding contact therewith.
5. The fiber monofilament tensile testing device according to claim 1, wherein a fourth through hole (19) is formed in the upper end of the lower clamping box (4), a third rubber bead (13) is arranged in the inner cavity of the fourth through hole (19), a first through hole (16) is formed in one side of the lower clamping box (4), a stop block (21) matched with the lower clamping box in position is arranged in the inner cavity of the lower clamping box (4), and a fourth rubber bead (20) is arranged in the inner cavity of the stop block (21).
6. The fiber monofilament tensile testing device according to claim 1, wherein the tensile mechanism (5) comprises a hydraulic cylinder (51), a pressing plate (52), a pressing post (53), a connecting post (54), a supporting plate (55), supporting columns (56), a pressing plate (57) and a pressure sensor (58), the hydraulic cylinder (51) is installed at the upper end of a base plate (8), the connecting post (54) is installed at the lower end of a lower clamping box (4), the lower end of the connecting post (54) is connected with four supporting columns (56) through the supporting plate (55), the lower end of the supporting column (56) is connected with the pressing plate (57), three pressure sensors (58) are arranged at the upper end of the pressing plate (57) at equal intervals, the hydraulic cylinder (51) penetrates through the pressing plate (57) through the hydraulic rod and extends to the pressing plate (52) above the pressing plate, and three pressing posts (53) which are matched with the positions of the pressure sensors (58) are arranged at the lower end of the pressing plate (52) at equal intervals.
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| CN115493941A (en) | 2022-12-20 |
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