CN115493941A - Fiber monofilament tensile test device - Google Patents
Fiber monofilament tensile test device Download PDFInfo
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- CN115493941A CN115493941A CN202211367792.7A CN202211367792A CN115493941A CN 115493941 A CN115493941 A CN 115493941A CN 202211367792 A CN202211367792 A CN 202211367792A CN 115493941 A CN115493941 A CN 115493941A
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- 239000000835 fiber Substances 0.000 title claims abstract description 73
- 238000009864 tensile test Methods 0.000 title claims abstract description 36
- 238000004804 winding Methods 0.000 claims description 56
- 238000003825 pressing Methods 0.000 claims description 40
- 239000011324 bead Substances 0.000 claims description 24
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 description 27
- 230000000694 effects Effects 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- 239000002131 composite material Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 238000010030 laminating Methods 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
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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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
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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
- G01N3/02—Details
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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
- G01N3/02—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
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- 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
Abstract
The invention relates to the technical field of fiber monofilament tensile test, in particular to a fiber monofilament tensile test 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, and is used as an important reinforcing material of a composite material, the performance index of the fiber is very critical to the design, manufacture and application of the composite material, for example, the strength and the elastic modulus are important parameters for carrying out the structural design of the composite material, the tensile property test of the fiber monofilament takes a single fiber as a test object, and the test result for measuring the tensile strength of the fiber monofilament 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 a single fiber is corrected, the fiber monofilament cannot be effectively limited and fixed due to unavoidable influences of loading of a testing machine, a clamping device and the like, so that the fiber monofilament is easy to fall off during detection, the detection effect is influenced, and the use is inconvenient.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a fiber monofilament tensile test device which has the advantages of conveniently and firmly performing up-and-down stable limiting and clamping in the process of tensile test on fiber monofilaments, avoiding the phenomenon that the fiber monofilaments are easy to fall off during detection, further influencing the detection effect, further effectively improving the tensile test effect, being convenient to use and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a fiber monofilament tensile test device, includes the backplate, the lower extreme of backplate is connected with the base plate, drawing mechanism is installed to the upper end of base plate, the centre gripping case is connected on one side of base plate, the lower extreme of going up the centre gripping case is provided with the bottom plate, the outside movable mounting who goes up the centre gripping case has last chamber door, one side of backplate is provided with down the centre gripping case, the outside of centre gripping case is provided with down the chamber door down, the lower extreme of centre gripping case is connected with drawing mechanism down, the inner chamber of going up the centre gripping case is provided with the centre gripping framework, the inner chamber of centre gripping case is provided with down fixture down.
Further, go up centre gripping framework including winding post, fixed subassembly and winding groove, the winding post sets up the upper end at the bottom plate, just the winding post is located the inner chamber of 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.
Furthermore, fixed subassembly is including electric putter, Z type connecting plate, insert post and fore-set, 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 fore-set of pegging graft mutually with the circular slot through the delivery stem, electric putter is connected with Z type connecting plate through the delivery stem, the lower extreme of Z type connecting plate is connected with the post of inserting of pegging graft mutually with the second slot.
Furthermore, 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 in T type groove, the both sides of rectangle piece are provided with first slot, the inner chamber both sides in T type groove all are connected with the cutting of pegging graft mutually with first slot through the spring beam.
Furthermore, 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 the first pearl of gluing.
Furthermore, the outer side of the back plate is provided with a sliding groove, and the outer side of the lower clamping box is symmetrically provided with T-shaped blocks in sliding connection with the lower clamping box.
Further, the upper end of centre gripping case is provided with the fourth through-hole down, the inner chamber of fourth through-hole is provided with the third and glues the pearl, one side of centre gripping case is provided with first through-hole down, the inner chamber of centre gripping case is provided with position assorted dog with it down, 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 centre gripping case all are provided with arc clamp plate position assorted clamp splice down, the lower extreme of clamp splice all be provided with indent assorted fastening strip, the fastening strip is rubber materials system.
Further, the drawing mechanism is including pneumatic cylinder, clamp plate, compression leg, 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 of centre gripping case is installed down 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 through the hydraulic stem and extends to its top and connect the clamp plate, the lower extreme equidistance of clamp plate is provided with the three compression leg with pressure sensor position assorted.
The fiber monofilament tensile testing device provided by the invention has the beneficial effects that:
1. the fiber monofilaments are fixed by injecting the solidified glue into the upper ends of the second through hole and the third through hole to form a first glue bead and a second glue bead, and the solidified glue is injected into the fourth through hole and the inner cavity of the stop block to form a third glue bead and a fourth glue bead, so that the effect of fixing the fiber monofilaments is effectively achieved;
2. the electric push rod drives the ejection column, the Z-shaped connecting plate and the insertion column at the lower end of the Z-shaped connecting plate to move downwards synchronously through the output shaft, the ejection column is inserted into the inner cavity of the circular groove, the insertion column is inserted into the inner cavity of the second slot, the winding column is convenient to fix, and after the ejection column moves downwards, the insertion strip is pushed through the rebound force released by the compressed spring rod and then clamped in the inner cavity of the first slot, the winding column is convenient to further fix, the fixing effect on the fiber monofilaments is effectively improved, and therefore the stable tensile test of the fiber monofilaments is facilitated;
3. pass the indent on two arc clamp plates through the fibre monofilament, behind the rotatory screw thread post of rethread, two screw thread posts move towards opposite direction, and then drive two arc clamp plates and move towards opposite direction, the arc clamp plate of being convenient for removes until laminating with the clamp splice, and fastening strip on the clamp splice tightly detains the inner chamber at the indent and carries out the centre gripping to the fibre monofilament, and two arc clamp plates move and fix towards upper and lower two directions respectively, tighten very to the fibre monofilament, the effectual effect of centre gripping fibre monofilament that has improved.
Drawings
FIG. 1 is a schematic view of an overall three-dimensional structure of a fiber monofilament tensile testing device according to the present invention;
FIG. 2 is a schematic view of an internal three-dimensional structure of a fiber monofilament tensile testing device according to the present invention;
FIG. 3 is a schematic view of a partial perspective rear view structure of a fiber monofilament tensile testing device according to the present invention;
FIG. 4 is a schematic view of a half-sectional three-dimensional structure of an upper clamping box of the fiber monofilament tensile testing device according to the present invention;
FIG. 5 is a schematic view of a half-sectional three-dimensional bottom structure of an upper clamping box of the fiber monofilament tensile testing apparatus according to the present invention;
FIG. 6 is a schematic view of a half-sectional three-dimensional structure of an upper clamping box of the fiber monofilament tensile testing device according to the present invention;
FIG. 7 is a schematic perspective view of a fixing member of a fiber filament tensile testing apparatus according to the present invention;
fig. 8 is a schematic diagram of a semi-sectional three-dimensional structure of a winding column of a fiber monofilament tensile testing device provided by the invention;
FIG. 9 is a schematic view of the internal three-dimensional structure of the lower clamping box of the fiber monofilament tensile testing apparatus 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 view of a three-dimensional splitting structure of a drawing mechanism of a fiber monofilament drawing test device according to the present invention.
In the figure: the back plate comprises a back plate 1, an upper clamping box 2, a bottom plate 3, a lower clamping box 4, a stretching mechanism 5, a hydraulic cylinder 51, a pressing plate 52, a pressing column 53, a connecting column 54, a supporting plate 55, a supporting column 56, a bearing plate 57, a pressure sensor 58, an upper clamping framework 6, a winding column 61, a fixing component 62, an electric push rod 621, a Z-shaped connecting plate 622, an inserting column 623, a top column 624, an annular sliding sleeve 63, a T-shaped groove 64, an inserting strip 65, a spring rod 66, a rectangular block 67, a winding groove 68, an annular groove 69, a circular groove 610, a placing groove 611, a fixing plate 612, a spring 613, a first slot 614, a second slot 615, a lower clamping mechanism 7, a threaded column 71, an arc-shaped pressing plate 72, a pressing groove 73, a clamping block 74, a fastening strip 75, a substrate 8, an upper box door 9, a lower box door 10, a first glue bead 11, a second glue bead 12, a third glue bead 13, a T-shaped block 14, a sliding groove 15, a first through hole 16, a second through hole 17, a third through hole 18, a fourth through hole 19, a fourth glue bead 20 and a stop block 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-11, a fiber monofilament tensile testing device comprises a back plate 1, a base plate 8 connected to the lower end of the back plate 1,
one side of a base plate 8 is connected with an 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, one side of a back plate 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 a 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 inserted with the winding column 61, the outer side of the winding column 61 is provided with the winding groove 68, the fixing component 62 comprises an electric push rod 621, a Z-shaped connecting plate 622, an inserting column 623 and a top column 624, the electric push rod 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 circular groove 610, the upper end of the winding column 61 is provided with a second slot 615, the lower end of an electric push rod 621 is connected with a top column 624 which is spliced with the circular 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 an 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 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, the two sides of the rectangular block 67 are provided with first slots 614, the two sides of the inner cavity of the T-shaped groove 64 are connected with inserting strips 65 which are spliced with the first slot 614 through the spring rod 66, the upper end of the bottom plate 3 is provided with an annular groove 69, the lower end of the winding column 61 is provided with an annular sliding sleeve 63 which is in sliding connection with the winding column in opposite direction, 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 glue bead 12, the upper end of the upper clamping box 2 is provided with a second through hole 17, the upper end of the second through hole 17 is provided with a first glue bead 11, one end of a fiber monofilament penetrates through the third through hole 18, then the fiber monofilament is wound along a winding groove 68 on the outer side of the winding column 61 and then penetrates through the second through hole 17 to be exposed, the upper ends of the second through hole 17 and the third through hole 18 are filled with solidified glue 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 output rod is driven to move downwards by the electric push rod 621, and then the top column, the Z-shaped connecting plate 622 and the inserting column 623 at the lower end of the top column are driven to move downwards synchronously, the top column 624 is inserted into the inner cavity of the circular groove 610, the inserting column 623 is inserted into the inner cavity of the second inserting groove 615, so that the winding column 61 is fixed, 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 of the fiber monofilaments is facilitated, the top column 624 downwards presses the fixing plate 612 when moving downwards, the fixing plate 612 drives the rectangular block 67 to downwards move through the tension spring 613, the rectangular block 67 presses the two inserting strips 65 in the inner cavity of the T-shaped groove 64 after moving downwards, so that the inserting strips 65 can move backwards through the compression spring rods 66, when the rectangular block 67 continues to move downwards, the inserting strips 65 are located at the same position as the first inserting groove 614, at the moment, the inserting strips 65 are pushed by the reverse elasticity released by the compressed spring rods 66, and then the inserting strips 65 are clamped in the inner cavity of the first inserting groove 614, be convenient for carry out further fixed to winding post 61, the effectual fixed effect to the fibre monofilament that has improved to make things convenient for its stable tensile test that carries on.
The inner cavity of the lower clamping box 4 is provided with a lower clamping mechanism 7, the outer side of the back plate 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, so that the lower clamping box 4 can move up and down conveniently, the tensile test of a mechanical energy fiber monofilament pulled downwards by the tensile 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 stopper 21 matched with the stopper, the inner cavity of the stopper 21 is provided with a fourth rubber bead 20, the lower clamping mechanism 7 comprises a threaded column 71, an arc-shaped pressing plate 72, a pressing groove 73, a clamping block 74 and a fastening strip 75, the two threaded columns 71 penetrate through the lower clamping box 4 and extend to the inner cavity of the lower clamping box and are movably connected with the arc-shaped pressing plate 72, one side of the arc-shaped pressing groove 73, the two ends of the inner cavity of the lower clamping box 4 are respectively provided with a clamping block 74 matched with the arc-shaped pressing plate 72 in position, the lower end of each clamping block 74 is respectively provided with a fastening strip 75 matched with the pressing groove 73, the fastening strips 75 are made of rubber materials, the other end of the fiber monofilament penetrates through the fourth through hole 19 and the first through hole 16, and the inner cavity of the fourth through hole 19 and the check block 21 is injected with solidified glue to form a third glue bead 13 and a fourth glue bead 20, so that the fiber monofilament is effectively fixed, the fiber monofilament penetrates through the pressing grooves 73 on the two arc-shaped pressing plates 72, and after rotating the threaded columns 71, the two threaded columns 71 move towards opposite directions to drive the two arc-shaped pressing plates 72 to move towards opposite directions, so that the arc-shaped pressing plates 72 move until being attached to the clamping blocks 74, and the fastening strips 75 on the clamping blocks 74 are tightly buckled in the inner cavities of the pressing grooves 73 to clamp the fiber monofilament, and two arc clamp plates 72 move and fix towards upper and lower two directions respectively, tighten very much the fibre monofilament, the effectual effect of centre gripping fibre monofilament that has improved is convenient for its stable test, improves the precision of test.
The upper end of the base plate 8 is provided with the stretching mechanism 5, the stretching mechanism 5 comprises a hydraulic cylinder 51, a pressure plate 52, a pressing column 53, a connecting column 54, a supporting plate 55, a supporting column 56, a bearing plate 57 and a pressure sensor 58, the hydraulic cylinder 51 is installed at the upper end of the base plate 8, the connecting column 54 is installed at the lower end of the lower clamping box 4, the lower end of the connecting column 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 bearing plate 57, three pressure sensors 58 are equidistantly arranged at the upper end of the bearing plate 57, the hydraulic cylinder 51 penetrates through the bearing plate 57 through a hydraulic rod and extends to the upper side of the bearing plate, three pressing columns 53 matched with the positions of the pressure sensors 58 are equidistantly arranged at the lower end of the pressing plate 52, after the hydraulic cylinder 51 downwards contracts downwards, the hydraulic rod drives the pressing plate 52 and the pressing columns 53 to downwards move, the pressing columns 53 abut against the pressure sensors 58 on the bearing plate 57, the bearing plate 57 is connected with the lower clamping box 4 through the supporting column 56, the supporting plate 55 and the connecting column 54, and the pressure borne by the pressure sensor 58 is equivalent to the tensile force of a fiber monofilament, so as to facilitate test.
The working principle is as follows: the invention is connected with the electric push rod 621, the hydraulic cylinder 51 and the pressure sensor 58 through the control of the external controller, and when the invention works, by opening the upper box door 9 and the lower box door 10, the fiber monofilament is fixed by passing one end of the fiber monofilament through the third through hole 18, winding along the winding groove 68 outside the winding post 61, then passing through the second through hole 17, exposing, injecting the solidified glue into the upper ends of the second through hole 17 and the third through hole 18, and forming the first glue bead 11 and the second glue bead 12, the fiber monofilament is fixed, and at the same time, the output rod is driven by the electric push rod 621 to move downwards, and then the top post 624, the Z-shaped connecting plate 622 and the insert post 623 at the lower end thereof move downwards synchronously, and the top post 624 is inserted into the inner cavity of the circular groove 610, and the insert post 623 is inserted into the inner cavity of the second slot 615, which is convenient for fixing the winding post 61, and avoids the winding post 61 sliding in the inner cavity of the annular sliding sleeve 63 in the annular groove 69 through the annular sliding sleeve 63, thereby driving the fiber monofilament to move, thereby facilitating the further fixing post 613, and further pressing the insert post 65, and further pushing the lower insert post 65 through the rectangular spring 66, and further pushing the fixing block 66, when the elastic block is pressed, the lower insert post 66, the lower fixing block is pressed, and the lower insert post 612 is pushed downwards, therefore, the stable tensile test is conveniently carried out, the other end of the fiber monofilament penetrates through the fourth through hole 19 and the first through hole 16, solidified glue is injected into the inner cavities of the fourth through hole 19 and the stop block 21 to form the third glue bead 13 and the fourth glue bead 20, the effect of fixing the fiber monofilament is conveniently and effectively played, the fiber monofilament penetrates through the pressing grooves 73 on the two arc-shaped pressing plates 72, after the thread column 71 is rotated, the two thread columns 71 move towards opposite directions to further drive the two arc-shaped pressing plates 72 to move towards opposite directions, the arc-shaped pressing plates 72 move until the arc-shaped pressing plates are attached to the clamping blocks 74, the fastening strips 75 on the clamping blocks 74 are tightly buckled in the inner cavities of the pressing grooves 73 to clamp the fiber monofilament, the two arc-shaped pressing plates 72 move and fix towards the upper direction and the lower direction respectively, the effect of clamping the fiber monofilament is effectively improved, the stable test is convenient, the test precision is improved, finally, after the hydraulic cylinder 51 contracts downwards, the hydraulic rod pressing plate 52 and the pressure bearing column 53 move downwards, the pressure bearing plate 53 moves towards the upper supporting plate 53, the pressure sensor 58 is conveniently connected with the supporting plate 54, and the tensile sensor 58, and the tensile force sensor 55 is conveniently recorded by the supporting plate 58.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a tensile testing arrangement of fibre monofilament, includes backplate (1), its characterized in that, the lower extreme of backplate (1) is connected with base plate (8), drawing mechanism (5) are installed to the upper end of base plate (8), centre gripping case (2) is connected to one side of base plate (8), the lower extreme of going up centre gripping case (2) is provided with bottom plate (3), the outside movable mounting who goes up centre gripping case (2) has last chamber door (9), one side of backplate (1) is provided with down centre gripping case (4), the outside of centre gripping case (4) is provided with down chamber door (10) down, the lower extreme of centre gripping case (4) is connected with drawing mechanism (5) down, the inner chamber of going up centre gripping case (2) is provided with centre gripping framework (6), the inner chamber of centre gripping case (4) is provided with down fixture (7) down.
2. The fiber monofilament tensile testing device according to claim 1, wherein 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 located 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 inserted into the winding column (61), and the winding groove (68) is arranged outside the winding column (61).
3. The fiber monofilament tensile test device according to claim 2, wherein the fixing component (62) comprises an electric push rod (621), a Z-shaped connecting plate (622), an inserting column (623) and an ejecting column (624), the electric push rod (621) is installed at the top end of the inner cavity of the upper clamping box (2), a circular groove (610) is arranged at the upper end of the winding column (61), a second inserting groove (615) is arranged at the upper end of the winding column (61), the lower end of the electric push rod (621) is connected with the ejecting column (624) inserted into the circular groove (610) through an output rod, the electric push rod (621) is connected with the Z-shaped connecting plate (622) through the output rod, and the lower end of the Z-shaped connecting plate (622) is connected with the inserting column (623) inserted into the second inserting groove (615).
4. A fiber monofilament tensile testing device according to claim 2, wherein the upper end of the bottom 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) which is in sliding contact with the annular groove.
5. The fiber monofilament tensile testing device according to claim 3, wherein a placement groove (611) communicated with the winding column (61) is formed in an inner cavity of the winding column (61), a fixing plate (612) is arranged in the inner cavity of the placement groove (611), the periphery of the upper end of the fixing plate (612) is connected with the top end of the inner cavity of the placement groove (611) through a spring (613), a T-shaped groove (64) is formed in the inner cavity of the base plate (3), 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), first slots (614) are formed in two sides of the rectangular block (67), and inserting strips (65) inserted into the first slots (614) are connected to two sides of the inner cavity of the T-shaped groove (64) through spring rods (66).
6. A fiber monofilament tensile testing device according to claim 1, wherein a third through hole (18) is arranged at the upper end of the bottom plate (3), a second rubber bead (12) is arranged at the upper end of the third through hole (18), a second through hole (17) is arranged at the upper end of the upper clamping box (2), and a first rubber bead (11) is arranged at the upper end of the second through hole (17).
7. A fiber monofilament tensile testing device according to claim 1, characterized in that the outside of the back plate (1) is provided with a sliding groove (15), and the outside of the lower clamping box (4) is symmetrically provided with T-shaped blocks (14) in sliding connection with the sliding groove.
8. 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 stopper (21) is arranged in the inner cavity of the lower clamping box (4) and is matched with the inner cavity of the lower clamping box in position, and a fourth rubber bead (20) is arranged in the inner cavity of the stopper (21).
9. The fiber monofilament tensile testing device according to claim 1, wherein the lower clamping mechanism (7) comprises threaded columns (71), arc-shaped pressing plates (72), pressing grooves (73), clamping blocks (74) and fastening strips (75), the two threaded columns (71) penetrate through the lower clamping box (4) and extend to the inner cavity of the lower clamping box to be movably connected with the arc-shaped pressing plates (72), the pressing grooves (73) are formed in one side of the arc-shaped pressing plates (72), the clamping blocks (74) matched with the arc-shaped pressing plates (72) in position are arranged at two ends of the inner cavity of the lower clamping box (4), the fastening strips (75) matched with the pressing grooves (73) are arranged at the lower ends of the clamping blocks (74), and the fastening strips (75) are made of rubber materials.
10. The fiber monofilament tensile testing device according to claim 1, wherein the tensile mechanism (5) comprises a hydraulic cylinder (51), a pressing plate (52), compression columns (53), a connecting column (54), a supporting plate (55), supporting columns (56), a bearing plate (57) and pressure sensors (58), the hydraulic cylinder (51) is installed at the upper end of the base plate (8), the connecting column (54) is installed at the lower end of the lower clamping box (4), the lower end of the connecting column (54) is connected with the four supporting columns (56) through the supporting plate (55), the bearing plate (57) is connected with the lower end of the supporting columns (56), three pressure sensors (58) are arranged at the upper end of the bearing plate (57) in an equidistant mode, the hydraulic cylinder (51) penetrates through the bearing plate (57) through a hydraulic rod and extends to the upper side of the bearing plate to be connected with the pressing plate (52), and three compression columns (53) matched with the positions of the pressure sensors (58) are arranged at the lower end of the pressing plate (52) in an equidistant mode.
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| CN202211367792.7A CN115493941B (en) | 2022-11-03 | 2022-11-03 | Fiber monofilament tensile testing device |
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