WO2018176236A1 - Gabarit et procédé d'essai de roulage statique de matériau flexible - Google Patents

Gabarit et procédé d'essai de roulage statique de matériau flexible Download PDF

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Publication number
WO2018176236A1
WO2018176236A1 PCT/CN2017/078469 CN2017078469W WO2018176236A1 WO 2018176236 A1 WO2018176236 A1 WO 2018176236A1 CN 2017078469 W CN2017078469 W CN 2017078469W WO 2018176236 A1 WO2018176236 A1 WO 2018176236A1
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WO
WIPO (PCT)
Prior art keywords
flexible material
curved
carrier
curved surface
static
Prior art date
Application number
PCT/CN2017/078469
Other languages
English (en)
Chinese (zh)
Inventor
胡耀
Original Assignee
深圳市柔宇科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to CN201780004634.6A priority Critical patent/CN108513613A/zh
Priority to PCT/CN2017/078469 priority patent/WO2018176236A1/fr
Publication of WO2018176236A1 publication Critical patent/WO2018176236A1/fr

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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
    • G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
    • 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
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0023—Bending

Definitions

  • the invention relates to the technical field of material property detection, in particular to a flexible material static curl test fixture and method.
  • Flexible materials for crimpable electronic devices typically have two states of use: a crimped state and a flattened state.
  • the degree of crimp fatigue is generally measured. That is, the maximum number of windings of the material after the material is repeatedly stored can be tested by the crimp fatigue limit test.
  • Embodiments of the present invention provide a flexible material static curl test fixture and method for measuring curl recovery performance of a flexible material applied to an electronic device.
  • the present invention relates to a flexible material static curl test fixture, comprising a base and a curved surface carrier; the curved carrier is mounted on the base; the curved surface of the curved carrier is used for crimping and carrying a flexible material;
  • the flexible material includes a first portion, a second portion, and a third portion between the first portion and the second portion.
  • first testing phase the first portion and the second portion are fixed to the curved carrier, and the third portion is crimped On the curved carrier; in the second test phase, the first portion is separated from the curved carrier and the third portion is released from the curved carrier to determine the degree of deformation recovery of the flexible material.
  • the utility model further includes a movable limiting member.
  • the limiting member In the first testing phase, the limiting member abuts the first portion; in the second testing phase, the limiting member is separated from the first portion.
  • the limiting member includes a positioning member and a resisting member coupled to the positioning member, the positioning member is movably mounted on the base or curved carrier, and the resisting member resists the The first portion of the flexible material is separated from the first portion of the flexible material.
  • the limiting member is a positioning pin mounted on the base, the positioning member is a pin rod portion, The resisting member is the head of the positioning pin.
  • the positioning member is a shaft body, and the resisting member is a pressing plate, and the pressing plate is movable on the curved surface carrier through the shaft body.
  • the resisting member has elasticity.
  • the degree of deformation recovery of the flexible material is determined by measuring the position of the moving point on the flexible material relative to the static point that has not moved.
  • the moving point is located at the end of the flexible material.
  • the static point is located on the curved carrier.
  • the second part is clamped and fixed between the curved carrier and the base in the first test stage and the second test stage.
  • the base platform comprises a support column, and the curved surface carrier is movably mounted on the support column.
  • the support column is provided with an adjustment groove
  • the rotation shaft is connected to the curved surface carrier through the adjustment groove, and the rotation shaft is used for moving in the adjustment groove to adjust the curved surface of the curved surface carrier and the base the distance.
  • the curved surface bearing body includes a curved surface bearing portion and a supporting portion fixed to one end of the curved surface bearing portion, the curved surface of the curved surface bearing portion is connected to two opposite sides of the supporting portion, and the flexible material is laminated on the curved surface bearing The curved surface of the part and the two sides of the support.
  • the support portion comprises two opposite bodies, the two bodies are connected by a connecting column, the connecting column adjusts the distance between the two bodies to make the two bodies suitable for different sizes of curved supports unit.
  • the control device further includes a control device that controls the limiting member to abut the first portion during the first testing phase; and controls the limiting device to move away from the first portion during the second testing phase.
  • the curved carrier is provided with a timer, and the timer is electrically connected to the control device to set the duration of the first test phase.
  • the curved surface carrier comprises a circular arc surface.
  • the application also provides a flexible material static curl testing method, comprising:
  • the flexible material to be tested is curled on the curved surface of the curved carrier, the first part of the flexible material to be tested is limited to the curved carrier by the limiting member, and the second part is fixed on the curved carrier, the first part and the second part The third portion between the portions is curled onto the curved surface of the curved carrier;
  • the flexible material is released in the first portion of the curved carrier that is resisted, and the third portion is restored to deformation;
  • the degree to which the flexible material recovers deformation is measured.
  • measuring the extent to which the flexible material recovers deformation includes:
  • the moving point is located at the free end of the flexible material, and the static point is located on the curved carrier.
  • the second portion is sandwiched between the curved carrier and the base.
  • the present application simulates a flexible electronic device by the curved carrier to measure the curl recovery performance of the flexible material to ensure the application quality of the flexible material.
  • FIG. 1 is a schematic structural view of a flexible material static curl test jig provided by the present invention.
  • FIG. 2 is a schematic view of the flexible material static crimp test fixture shown in FIG. 1 for testing a flexible material in which the flexible material is in a crimped state.
  • FIG. 3 is a schematic view of the flexible material static crimp test fixture shown in FIG. 1 for testing a flexible material in which the flexible material is in a released state.
  • FIG. 4 is a schematic view showing the structure of a flexible material static curl test jig according to another embodiment of the present invention, wherein the flexible material is curled on the jig.
  • Figure 5 is a schematic illustration of the base and base fixed flexible material of the flexible material static crimp test fixture of Figure 4.
  • Figure 6 is a schematic illustration of one mode of the flexible material static crimp test fixture of Figure 4.
  • Figure 7 is a schematic view showing the structure of the base and the base of the flexible material static curl test jig shown in Figure 5 connected by an adjusting rod.
  • Figure 8 is a schematic view of the flexible material static crimp test fixture shown in Figure 4 for testing a flexible material in which the flexible material is in a released state.
  • the present application provides a flexible material static crimp test fixture for testing the recovery characteristics of a flexible material for a flexible electronic device from a crimped state to an extended state.
  • the test fixture includes a base 10, a curved carrier 15, a limiting member 20, and a control device (not shown).
  • the curved carrier 15 is detachably mounted on the base 10; the curved surface of the curved carrier 15 is used to crimp and carry the flexible material 30.
  • a portion of the flexible material 30 is placed on the surface of the base 10 and is held between the curved carrier 15 and the surface of the base 10, and the end is positioned by the limiting member 20, wherein the flexible material is to be tested. Pieces. Thereby, the flexible material 30 is curled onto the curved carrier 15.
  • the flexible material 30 is not limited to the above portion between the curved carrier 15 and the base 10, and is not limited to the end resisting the limiting member 20, but may also pass through different portions.
  • the curved surface carrier 15, the base 10, and the stopper 20 are used to achieve the curl state maintaining effect.
  • the flexible material 30 can include a first portion and a second portion between opposite ends. The second portion is resistable between the curved carrier 15 and the base 10, the first portion is abutted by the limiting member 20, and the third portion of the flexible material 30 between the first portion and the second portion is crimped on the curved carrier. 15 on.
  • the second portion may also be located at one of the ends of the flexible material 30, and the first portion may also be located at the opposite end of the flexible material 30, depending on actual needs.
  • the second portion is not limited to being fixedly clamped by the curved carrier 15 and the base 10, but may be fixed to the curved carrier 15 by other means, for example, directly adhered to the curved carrier by adhesive. 15; or two magnets are respectively disposed on the second portion and the curved surface carrier 15, and the second portion is fixed to the curved surface carrier 15 by magnetic attraction.
  • the first portion and the second portion are fixed to the curved carrier 15 and the third portion is crimped onto the curved carrier 15; in the second test phase, The first portion is separated from the curved carrier 15 to release the third portion from the curved carrier 15 to determine the degree of deformation recovery of the flexible material.
  • the control device controls the limiting member 20 to release the flexible material. The flexible material 30 is unwound from the curved carrier 15 due to the elastic restoring force.
  • the second portion is clamped and fixed between the curved carrier 15 and the base 10.
  • the base 10 includes a surface 101 and a support post 11.
  • the support column 11 is fixed on the base 10 and perpendicular to the surface 101 for supporting and fixing the curved surface carrier 15.
  • the curved surface carrier 15 is a disc-shaped rotating wheel having a supporting surface of a toroidal curved surface.
  • the support surface of the curved surface carrier 15 may also be a rectangle, a triangle or other polygons.
  • the curved surface carrier 15 is movably mounted on the support column 11 by a rotating shaft 151, and the curved surface carrier 15 and the base 10 clamp a part of the flexible material 30 (ie, the second part), specifically
  • the flexible material 30 is curled on the curved surface of the curved surface carrier 15 , and a part of the flexible material 30 is clamped and fixed to the surface 101 of the base 10 by the curved surface of the curved surface carrier 15 .
  • the limiting member 20 includes a positioning member 21 and a resisting member 22 connected to the positioning member 21, and the positioning member 21 is movably mounted on the base 10 and the resisting member
  • the piece 22 positions the first portion of the flexible material 30 or is separate from the first portion of the flexible material.
  • the positioning member 21 is rotated or moved to the surface 101 of the base 10 by a rotating shaft or a sliding rail or the like.
  • the limiting member 20 abuts the first portion; in the second testing phase, the limiting member 20 is separated from the first portion; that is, the control device electrically controls the positioning member 21 to rotate, thereby driving the resisting member 22 Move to exit or resist the end of the flexible material 30.
  • the limiting member 20 can also be mounted on the curved surface carrier 15 or on other supporting structures than the base 10 and the curved carrier 15 .
  • the curved surface carrier 15 or the limiting member 20 is provided with a timer 25, and the timer 25 is connected to the control device for setting the preset curling time, that is, the first testing stage. duration.
  • the timer 25 is mounted on the curved surface carrier 15, and the timer and the control device can be combined to achieve full test automation. Of course, other methods can also be used for timing.
  • the first step is to provide the above-mentioned base plate provided with the curved surface bearing body;
  • the flexible material to be tested is curled on the curved surface of the curved carrier, and the first portion of the flexible material to be tested is limited to the curved carrier by the limiting member, and the second portion is fixed on the curved carrier.
  • the third portion between the portion and the second portion is curled on the curved surface of the curved carrier; the second portion is clamped between the curved carrier and the base;
  • the flexible material is released in the first portion of the curved carrier that is resisted, and the third portion is restored to deformation;
  • the fourth step is to measure the extent to which the flexible material recovers deformation.
  • the degree includes: measuring the position of the moving point where the movement of the flexible material is released relative to the static point where the movement does not occur.
  • the moving point is located at the free end of the flexible material and the static point is on the curved carrier.
  • the flexible material 30 is curled onto the curved surface of the curved surface carrier 15 from the end of the flexible material 30, and the second portion is sandwiched between the base 10 and the curved surface carrier 15, and the control device controls the
  • the positioning member 21 rotates to drive the resisting member 22 against the first portion of the flexible material 30 located on the curved surface carrier 15, and the timer is turned on to record the preset time.
  • the control device controls the positioning member 21 to drive the resisting member 22 away from the first portion of the flexible material 30, and the flexible material 30 partially recovers from the curved carrier 15 due to the elastic force, and presents curling.
  • the unfolded state after a certain time, that is, the end of the flexible material is released.
  • the degree of deformation recovery of the flexible material 30 is determined by measuring the position of the moving point on the flexible material 30 that moves relative to the static point that has not moved.
  • the moving point is located at a first portion or end of the flexible material 30.
  • the static point is located on the curved carrier 15.
  • the angle A of the angle between the curled end of the flexible material 30 and the center of the curved carrier 15 (ie, the position of the rotating shaft 151) with respect to the vertical direction is measured and recorded, thereby calculating the test.
  • the angle A can be measured by a measuring tool such as a protractor or an optical sensor.
  • the angle A can be observed even by the naked eye without using a measuring tool. It can be understood that the angle between the curled end of the flexible material 30 and the center of the curved carrier 15 with respect to the horizontal direction can also be measured, and the degree of deformation recovery of the flexible material 30 can also be calculated.
  • the present invention is not limited to the connection of the curled end of the flexible material 30 to the center of the curved carrier 15, but may be the connection of the curled end of the flexible material 30 to other fixed positions, such as Any point on the abutment 10, any point on the curved carrier 15, any point on the flexible material 30 that remains stationary, or any other fixed location may only require that the selected fixed position does not appear before and after the measurement. Change can be.
  • the invention is not limited to being the curled end of the flexible material 30, but may be any point where the flexible material 30 has undergone a positional change before and after the measurement, such as may be other locations near the curled end.
  • the degree of deformation recovery of the flexible material 30 can be calculated by the angle of the line with the horizontal or vertical direction.
  • the limiting member 20 is a positioning pin
  • the positioning member 21 is a pin rod portion
  • the abutting member 22 is a head of the positioning pin.
  • the resisting member 22 has elasticity that can more closely resist the flexible material 30 to ensure the fixing force without damaging the flexible material.
  • the support column 11 is provided with an adjustment slot 12 for mounting the rotating shaft 151 .
  • the rotating shaft 151 can move up and down in the adjusting groove 12 to adjust the distance between the curved surface of the curved surface carrier 15 and the base 10.
  • the adjustment groove 12 is a strip-shaped through groove and is disposed through the support column 11 along the thickness direction of the support column 11 .
  • the rotating shaft 151 passes through the adjusting groove 12 to fix the curved bearing body 15 on the support column 11 , and the distance between the curved surface of the curved surface carrier 15 and the base 10 can just clamp the flexible material. .
  • the size of the curved carrier 15 is different, and the height of the opposite base 10 of the rotating shaft 151 in the adjusting groove 12 can be adjusted to ensure the curved surface of the curved carrier 15 and the base 10 The distance is just enough to hold the flexible material 30.
  • the curved surface carrier includes a curved surface bearing portion 15 and a supporting portion 40 fixed to one end of the curved surface bearing portion 15 , and the curved surface bearing portion 15 is different from the above embodiment.
  • the curved surface is connected to two opposite sides of the support portion 40, and the flexible material is laminated on the curved surface of the curved surface bearing portion 15 and both sides of the support portion 40.
  • the curved surface of the curved surface bearing portion 15 faces away from the outer side of the support portion 40 , and the flexible material 30 is laminated on the curved surface of the curved surface bearing portion 15 and the two side surfaces 401 of the support portion 40 .
  • the positioning member 23 of the limiting member 20 of the embodiment is a shaft body, and the resisting member 24 is a pressing plate, and the pressing plate 24 is movably mounted on the base 10 through the shaft body.
  • the positioning members 23 are two groups, and each of the two positioning members 23 is oppositely disposed, and the flexible material 30 is passed between the two opposite positioning members 23.
  • the pressing plate 24 is movable up and down along the positioning portion 23 along the positioning member 23 to achieve pressing or releasing of the flexible material 30.
  • the curved surface bearing portion 15 is a semi-circular wheel with a curved surface.
  • the curved surface bearing portion 15 is fixed to one end of the support portion 40, and the planar side (radius end surface) of the curved surface bearing portion 15 is detachably butted with the end surface of the support portion 40, wherein the thickness of the support portion 40 and the semicircular wheel
  • the discs have the same diameter so that the curved surface and the both side faces 401 of the support portion 40 can be smoothly connected.
  • the flexible material 30 is laminated on the curved surface and the two sides. As shown in FIG.
  • the positioning member 23 of the shaft body passes through the pressing plate to mount a pressing plate on the side surface 401 of the base 10, and clamps the first portion of the flexible material 30 together with the supporting portion 40, and is flexible.
  • the second portion of material 30 passes through other planes and support portion 40
  • the clamping such as the platform 50 for fixing the test device, is shown in Fig. 5.
  • the second part is also fixed by the limiting member 20. The platen can be lifted or lowered from the movable shaft to resist or separate from the flexible material to accommodate different thicknesses of flexible material and to facilitate access to the flexible material 30.
  • the support portion 40 includes two opposite main bodies 41 .
  • the two main bodies 41 are stacked one above another and connected by a connecting post 42 .
  • the connecting post 42 adjusts the two main bodies 41 .
  • the distance between them is such that the distance between the upper and lower sides of the two bodies 41 is applied to the curved bearing portions 15 of different sizes.
  • the number of the connection columns 42 is three, and may be three or more.
  • the large-diameter curved surface bearing portion 15 can be replaced, and at the same time, in order to make the curved surface of the curved surface bearing portion 15 smoothly connect with the side surface of the support portion 40, the two main bodies 41 The distance between the two bodies 41 is increased to adjust the distance between the upper and lower sides of the two bodies 41.
  • the flexible material static curl test fixture further includes a base 50, and a support column 51 is disposed between the support portion 40 and the base 50, as shown in the figure.
  • the support post 51 is used to adjust the distance between the support portion 40 and the curved surface bearing portion 15 relative to the base 50 to achieve clamping and release of the flexible material 30 .
  • the support post 51 supports the support portion 40 above the base 50, one side of the support portion 40 faces the base 50, and one side of the support portion 40 and the base when tested
  • the table 50 holds the second portion of the flexible material 30, and the first portion of the flexible material 30 is secured by the stop member 20 of the present embodiment. After the continuous booking time, the stop 20 leaves the first portion of the flexible material 30, the second portion of the flexible material 30 remains clamped between the base 50 and the support 40, and the third portion of the flexible material 30 is due to the elastic force. Natural release.
  • the moving point of the flexible material 30 is located at the end thereof, and the static point is located at the bottom of the curved surface bearing portion 15.
  • the recovery angle of the flexible material 30 can be calculated by measuring the angle A of the line connecting the moving point and the static point with respect to the horizontal direction.
  • the flexible material static curl test jig of the present application can test the deformation parameter of the flexible material in more detail by testing the flexible material from the curved support material to test the flexible material from a state in which it is in a long time to a recovery state in another state. Facilitate the subsequent use of flexible materials.

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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

La présente invention concerne un gabarit pour évaluer le roulage statique d'un matériau flexible, le gabarit comprenant une plate-forme de base (10) et un support de surface incurvé (15). Le support de surface incurvé (15) est monté sur la plate-forme de base (10). Une surface incurvée du support de surface incurvé (15) est utilisée pour le roulage et le transport d'un matériau flexible (30). Le matériau flexible (30) comprend une première partie, une deuxième partie et une troisième partie entre la première partie et la deuxième partie, dans lequel, dans une première étape d'essai, la première partie et la deuxième partie sont fixées au support de surface incurvé (15), et la troisième partie est enroulée sur le support de surface incurvé (15), et dans une deuxième étape d'essai, la première partie est séparée du support de surface incurvé et la troisième partie est libérée du support de surface incurvé (15) pour déterminer la récupération de déformation du matériau flexible.
PCT/CN2017/078469 2017-03-28 2017-03-28 Gabarit et procédé d'essai de roulage statique de matériau flexible WO2018176236A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780004634.6A CN108513613A (zh) 2017-03-28 2017-03-28 柔性材料静态卷曲测试治具及方法
PCT/CN2017/078469 WO2018176236A1 (fr) 2017-03-28 2017-03-28 Gabarit et procédé d'essai de roulage statique de matériau flexible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/078469 WO2018176236A1 (fr) 2017-03-28 2017-03-28 Gabarit et procédé d'essai de roulage statique de matériau flexible

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WO2018176236A1 true WO2018176236A1 (fr) 2018-10-04

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Cited By (1)

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CN111624094A (zh) * 2020-07-08 2020-09-04 玛尔斯检测技术(苏州)有限公司 一种柔性材料的卷曲测试平台及方法

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CN202256047U (zh) * 2011-10-24 2012-05-30 昆明醋酸纤维有限公司 一种测定丝束未卷曲能值的正弦波型夹具
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111624094A (zh) * 2020-07-08 2020-09-04 玛尔斯检测技术(苏州)有限公司 一种柔性材料的卷曲测试平台及方法

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