Whole shoe flexural rigidity tester and testing method thereof

Abstract

The invention discloses a whole shoe flexural rigidity tester and a testing method thereof. The whole shoe flexural rigidity tester comprises a supporting platform, a tilting mechanism, a clamping mechanism, and a translation mechanism, a lifting force application mechanism and a stress data acquisition mechanism which are arranged above the supporting platform, the tilting mechanism is used for controlling the supporting platform to rotate; the clamping mechanism is used for clamping and fixing a to-be-tested shoe on the supporting platform; the translation mechanism is used for driving the lifting force application mechanism to transversely move to a position above the to-be-tested shoe; the lifting force application mechanism is used for applying pressure to the to-be-tested shoe; the stress data acquisition mechanism is used for acquiring stress test data of the to-be-tested shoe; according to the scheme, on the premise that the whole shoe is not damaged, the shoe sole serves as an examination object, the flexural rigidity performance of the whole shoe is truly and accurately reflected, the contribution of the shoe sole material and the shoe sole structure design to the flexural rigidity performance of the shoe is fully explored, and the development of the shoe and the detection industry is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of testers, and in particular to a whole shoe bending stiffness tester and a testing method thereof. Background Art

[0002] According to the requirements of product standards QB / T 1002-2015 "Leather Shoes" and GB / T 22756-2017 "Leather Sandals", when the heel height and heel opening height reach a certain height, leather shoes, leather sandals and other products must be equipped with steel shanks. Generally, the steel shank is placed between the outsole and the midsole at the arch of the foot, or sandwiched between the insole and the semi-supporting sole, to maintain the curvature of the bottom and stabilize the heel of the shoe. If the shank is too soft, the heel of the shoe will tilt forward, backward, left and right when walking, and the person will walk unsteadily after wearing it. If walking for a long time, the waist, legs and feet will easily become tired, affecting people's physical and mental health; if the shank is too hard, it will not only be uncomfortable to wear, but also the shoe will not follow the foot when walking, and the sole will be easily broken by impact when the gait is unstable, causing personal injury. The quality of the shank directly affects the wearing comfort and safety. Generally, the bending stiffness of the shoe is reflected by testing the longitudinal stiffness, fatigue resistance, hardness and bending performance of the shoe shank.

[0003] Taking out the shank from the shoe for testing can reflect the shoe's performance in shaping and supporting load to a certain extent, but it cannot fully reflect the overall bending stiffness performance of the shoe. The main reasons are as follows:

[0004] 1. The shank is placed between the outsole and the midsole of the shoe and is integrated with the outsole. If the shank is removed for separate testing, the testing method of this type of steel shank is a destructive test for the entire shoe. On the one hand, the shoe will be destroyed, and on the other hand, the test data cannot fully reflect the actual bending stiffness performance of the entire shoe.

[0005] 2. With the development of the times, the design of footwear styles is becoming more and more diversified and personalized, especially for women's high-heeled shoes. Some soles do not need to be installed with steel shanks to meet the bending stiffness, such as soles molded by hard plastic casting, all-wooden soles molded by integral processing, etc. These soles have a common feature that they are thicker at the waist and have excellent deformation resistance. The shanks are placed between the cardboard of the outsole and the midsole, which is a composite material as a whole. For men's leather shoes with a small difference between the heel and the forefoot, steel shanks are not needed to meet the deformation resistance and achieve the support effect, such as plastic shanks that have appeared on the market. However, such shanks do not meet the standard requirements of QB / T 1002-2015 "Leather Shoes" and GB / T 22756-2017 "Leather Sandals". Therefore, the use of plastic shanks or sole structure designs that meet the bending requirements instead of steel shanks will be regarded as unqualified products or their bending stiffness performance cannot be evaluated.

[0006] In summary, the testing industry has not yet found a testing method and index for the bending stiffness of the whole shoe, but the existing standards have restricted the development of sole composite materials and sole structure design. In addition, the testing laboratory needs to obtain the steel shank from the whole shoe, which is time-consuming and labor-intensive, and the testing efficiency is low. Summary of the invention

[0007] The object of the present invention is to provide a whole shoe bending stiffness tester and a testing method thereof, so as to solve the problem that the prior art cannot implement steel shank testing of the whole shoe.

[0008] In order to solve the above technical problems, the present invention provides a whole shoe bending stiffness tester, including a supporting platform, a tilting mechanism, a clamping mechanism, and a translation mechanism, a lifting and force-applying mechanism and a force data acquisition mechanism arranged above the supporting platform; the tilting mechanism is rotatably connected to one side of the supporting platform, and the tilting mechanism is used to control the rotation of the supporting platform; the clamping mechanism is arranged on the supporting platform, and the clamping mechanism is used to clamp and fix the shoe to be tested on the supporting platform; the translation mechanism is connected to the lifting and force-applying mechanism, and the translation mechanism is used to drive the lifting and force-applying mechanism to move laterally to the top of the shoe to be tested; the lifting and force-applying mechanism is used to apply pressure to the shoe to be tested; the force data acquisition mechanism is arranged at the forefoot of the shoe, the heel of the shoe, and on the lifting and force-applying mechanism where the shoe to be tested is placed, and the force data acquisition mechanism is used to obtain the force test data of the shoe to be tested.

[0009] In one embodiment, the tilting mechanism includes a tilting base, a tilting connecting seat, a tilting axis and a tilting motor; the tilting base is arranged on the base of the whole shoe bending stiffness tester; the tilting connecting seat is arranged at the bottom of the supporting platform; the tilting axis is rotatably connected to the tilting base, and the tilting axis is fixedly connected to the tilting connecting seat; the tilting motor is used to drive the tilting axis to rotate.

[0010] In one of the embodiments, the clamping mechanism includes a positioning plate, a shoe width fixing unit and a shoe length fixing unit; the positioning plate is arranged at the default placement position of the heel of the shoe to be tested; the shoe width fixing unit is used to fix the shoe to be tested in the width direction; the shoe length fixing unit is used to position the shoe to be tested in the length direction.

[0011] In one of the embodiments, a positioning groove is provided on the surface of the positioning plate away from the default placement position of the shoe to be tested; the shoe width fixing unit includes a shoe width guide rail, a shoe width slider, a shoe width connecting block, a splint, a two-way reverse-threaded screw and a handle; the shoe width guide rail is extended and arranged along the width direction of the default placement state of the shoe to be tested; the two shoe width sliders are slidably installed on the shoe width guide rail; the two shoe width connecting blocks are respectively connected and fixed to the two shoe width sliders; in the width direction of the default placement state of the shoe to be tested, the two splints are respectively arranged on the opposite sides of the positioning plate, and the two splints are respectively connected and fixed to the two shoe width connecting blocks; the two-way reverse-threaded screw passes through the positioning groove and the two shoe width connecting blocks; a positioning block is provided in the middle of the two-way reverse-threaded screw, and the positioning block is clamped in the positioning groove; the reverse threads at both ends of the two-way reverse-threaded screw are respectively threadedly connected to the two shoe width connecting blocks; the handle is connected and fixed to one end of the two-way reverse-threaded screw.

[0012] In one of the embodiments, a toe guide slot is provided on the support platform, and the toe guide slot is extended along the length direction of the default placement state of the shoe to be tested; the shoe length fixing unit includes a toe placement plate, a heel placement plate, a shoe length guide rail, a shoe length slider, a shoe length connector, a toe support frame, a shoe length transmission block, a shoe length screw rod and a shoe length motor; the toe placement plate is arranged opposite to the toe guide slot; the heel placement plate is arranged adjacent to the positioning plate; the shoe length guide rail is extended along the length direction of the default placement state of the shoe to be tested; the shoe length slider is arranged to slide Installed on the shoe length guide rail; one end of the shoe length connecting piece is connected and fixed to the shoe length slider, and the other end of the shoe length connecting piece extends to the bottom of the support platform and is connected and fixed to the toe support frame; the toe support frame passes through the toe guide slot and is connected to the toe placement plate; the shoe length transmission block is arranged on the toe support frame; the shoe length lead screw is extended along the length direction of the default placement state of the shoe to be tested, and the shoe length lead screw is threadedly connected to the shoe length transmission block; the shoe length motor is connected to the support platform, and the shoe length motor is used to drive the shoe length lead screw to rotate.

[0013] In one of the embodiments, the support platform is provided with a heel through hole and a heel support frame, and the heel support frame is arranged opposite to the heel through hole at the bottom of the support platform; the force data acquisition mechanism includes a forefoot force sensor and a heel force sensor; the forefoot force sensor is arranged on the toe support frame, and the forefoot force sensor passes through the toe guide groove and is connected to the toe placement plate; the heel force sensor is arranged on the heel support frame, and the heel force sensor passes through the heel through hole and is connected to the heel placement plate.

[0014] In one of the embodiments, the translation mechanism includes a translation guide rail, a translation slider, a translation platform, a translation connecting block, a translation screw, a translation transmission block and a translation motor; the translation guide rail is extended along the length direction of the default placement state of the shoe to be tested; the translation slider is slidably installed on the translation guide rail; the translation platform is connected to the translation slider, and the translation platform is provided with the lifting and lowering force mechanism; the translation connecting block is arranged below the translation platform; the translation screw passes through the translation connecting block; the translation transmission block is threadedly connected to the translation screw, and the translation transmission block is connected and fixed to the translation connecting block; the translation motor is used to drive the translation screw to rotate.

[0015] In one of the embodiments, the lifting and lowering force mechanism includes a lifting motor, a gear set, a rack, a lifting guide rail, a force rod and a force sensor; the lifting motor is used to drive the gear set to rotate; the gear set is meshed with the rack; the rack is slidably installed on the lifting guide rail; the lifting guide rail is vertically extended; the force rod is connected to the bottom of the rack; the force sensor is connected between the rack and the force rod.

[0016] In one embodiment, the force data acquisition mechanism includes a first ranging sensor, a second ranging sensor and a third ranging sensor arranged above the shoe to be tested; the first ranging sensor and the second ranging sensor are arranged on the lifting force application mechanism in a manner of being arranged on the same horizontal line, and the first ranging sensor and the second ranging sensor are used to detect whether the inner surfaces of the sole corresponding to the forefoot force point and the heel force point of the shoe to be tested are in a horizontal state; the third ranging sensor is used to detect the displacement change of the shoe to be tested during testing.

[0017] In order to solve the above technical problems, the present invention also provides a whole shoe bending stiffness testing method, which uses the above whole shoe bending stiffness tester and includes the following steps:

[0018] S1, placing the shoe to be tested on the support platform, and clamping and fixing the shoe to be tested by using the clamping mechanism;

[0019] S2, the lifting force-applying mechanism applies pre-force to the waist of the shoe to be tested, and the force data acquisition mechanism detects the current forefoot force point and heel force point of the shoe to be tested, and marks them;

[0020] S3, the tilting mechanism controls the support platform to tilt so that the inner surface of the sole corresponding to the forefoot force point and the heel force point is placed horizontally, and the midpoint between the two is taken as the subsequent force application point;

[0021] S4, using the lifting force application mechanism to apply pressure to the subsequent force application points in steps, and using the force data acquisition mechanism to detect the downward displacement of the sole of the shoe to be tested;

[0022] S5, calculating the displacement difference of the sole of the shoe to be tested each time when it moves downward to obtain the value of the deformation of the shoe to be tested, and judging the bending stiffness performance of the shoe to be tested through the pressure and deformation curve of the shoe to be tested.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. Will not damage the shoe sample, non-destructive testing, energy-saving and high efficiency;

[0025] 2. Whole shoe test, truly and accurately reflects the bending stiffness performance of the whole shoe;

[0026] 3. Suitable for soles of various materials, whether with shanks or not, the bending stiffness of the whole shoe can be verified;

[0027] 4. Release the constraints on the shoemaking industry in terms of design and material selection and promote the development of the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the structure provided by an embodiment of the present invention;

[0030] Figure 2 yes Figure 1 Schematic diagram of the internal structure;

[0031] Figure 3 yes Figure 2 A schematic diagram of the tilting mechanism and the clamping mechanism structure;

[0032] Figure 4 yes Figure 3 A rear view schematic diagram of

[0033] Figure 5 yes Figure 3 Schematic diagram of the partial disassembly structure;

[0034] Figure 6 yes Figure 5 Schematic diagram of the partial disassembly structure;

[0035] Figure 7 yes Figure 2 Structural schematic diagram of the translation mechanism and lifting force application mechanism;

[0036] Figure 8 yes Figure 7 Schematic diagram of the partial disassembly structure;

[0037] Fig. 9 yes Figure 2 Schematic diagram of the layout of the distance measuring sensors of the force data acquisition mechanism.

[0038] The reference numerals are as follows:

[0039] 10. Support platform; 11. Toe guide slot; 12. Heel through hole; 13. Heel support frame;

[0040] 20. Tilt mechanism; 21. Tilt base; 22. Tilt connecting seat; 23. Tilt axis;

[0041] 30. Clamping mechanism; 31. Positioning plate; 311. Positioning slot; 32. Shoe width fixing unit; 321. Shoe width guide rail; 322. Shoe width slider; 323. Shoe width connecting block; 324. Clamp; 325. Two-way reverse threaded screw rod; 326. Handle; 327. Positioning block; 33. Shoe length fixing unit; 331. Shoe toe placement plate; 332. Shoe heel placement plate; 333. Shoe length guide rail; 334. Shoe length slider; 335. Shoe length connecting piece; 336. Shoe toe support frame; 337. Shoe length transmission block; 338. Shoe length screw rod; 339. Shoe length motor;

[0042] 40. Translation mechanism; 41. Translation guide rail; 42. Translation slider; 43. Translation platform; 44. Translation connecting block; 45. Translation screw rod; 46. Translation transmission block; 47. Translation motor;

[0043] 50. lifting force applying mechanism; 51. gear set; 52. rack; 53. lifting guide rail; 54. force applying rod;

[0044] 61. Shoe forefoot force sensor; 62. Shoe heel force sensor; 63. Force sensor; 641. First distance sensor; 642. Second distance sensor; 643. Third distance sensor;

[0045] 70. Base. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0047] The present invention provides a whole shoe bending stiffness tester, which is implemented as follows: Figures 1 to 8As shown, it includes a support platform 10, a tilting mechanism 20, a clamping mechanism 30, and a translation mechanism 40, a lifting and force-applying mechanism 50 and a force data acquisition mechanism arranged above the support platform 10; the tilting mechanism 20 is rotatably connected to one side of the support platform 10, and the tilting mechanism 20 is used to control the rotation of the support platform 10; the clamping mechanism 30 is arranged on the support platform 10, and the clamping mechanism 30 is used to clamp and fix the shoe to be tested on the support platform 10; the translation mechanism 40 is connected to the lifting and force-applying mechanism 50, and the translation mechanism 40 is used to drive the lifting and force-applying mechanism 50 to move horizontally to the top of the shoe to be tested; the lifting and force-applying mechanism 50 is used to apply pressure to the shoe to be tested; the force data acquisition mechanism is arranged at the forefoot of the shoe, the heel of the shoe, and on the lifting and force-applying mechanism 50 where the shoe to be tested is placed, and the force data acquisition mechanism is used to obtain the force test data of the shoe to be tested.

[0048] The present invention also provides a whole shoe bending stiffness testing method, which uses the above-mentioned whole shoe bending stiffness tester and includes the following steps:

[0049] S1, placing the shoe to be tested on the support platform 10, and clamping and fixing the shoe to be tested by the clamping mechanism 30;

[0050] S2, the lifting force applying mechanism 50 applies pre-force to the waist of the shoe to be tested, and uses the force data acquisition mechanism to detect the current forefoot force point and heel force point of the shoe to be tested, and mark them;

[0051] S3, the tilting mechanism 20 controls the support platform 10 to tilt so that the inner surface of the sole corresponding to the force point of the forefoot and the force point of the heel are placed horizontally, and the midpoint of the two is taken as the subsequent force application point;

[0052] S4, using the lifting force application mechanism 50 to apply pressure to the subsequent force application points in steps, and using the force data acquisition mechanism to detect the downward displacement of the sole of the shoe to be tested;

[0053] S5, calculating the displacement difference of the sole of the shoe to be tested each time when it moves downward to obtain the value of the deformation of the shoe to be tested, and judging the bending stiffness performance of the shoe to be tested through the pressure and deformation curve of the shoe to be tested.

[0054] Specifically, when applying, the shoe to be tested is placed on the support platform 10, and the clamping mechanism 30 will adapt and clamp according to different shoe types; after the shoe to be tested is clamped and fixed, the tilting mechanism 20 will control the support platform 10 to tilt, so as to adjust the shoe to be tested to a suitable placement state, and then the translation mechanism 40 drives the lifting and force-applying mechanism 50 to move to the top of the shoe to be tested, and the lifting and force-applying mechanism 50 descends to apply pressure to the shoe to be tested, and finally various force test data of the shoe to be tested are obtained through the force data acquisition mechanism, thereby completing the entire test process.

[0055] Obviously, this solution takes the sole as the assessment object without destroying the entire shoe, truly and accurately reflects the bending stiffness performance of the entire shoe, fully explores the contribution of the sole material and sole structure design to the bending stiffness of the shoe, and promotes the development of the footwear and testing industries.

[0056] like Figures 2 to 4 As shown, this embodiment provides a tilting mechanism 20 including a tilting base 21, a tilting connection seat 22, a tilting axis 23 and a tilting motor; the tilting base 21 is arranged on the base 70 of the whole shoe bending stiffness tester; the tilting connection seat 22 is arranged at the bottom of the supporting platform 10; the tilting axis 23 is rotatably connected to the tilting base 21, and the tilting axis 23 is fixedly connected to the tilting connection seat 22; the tilting motor is used to drive the tilting axis 23 to rotate.

[0057] When in use, the tilt motor will drive the tilt axis 23 to rotate. Since the tilt axis 23 is fixedly connected to the tilt connecting seat 22, it will drive the support platform 10 to flip. At this time, the tilt axis 23 will be the rotation center of the support platform 10, thereby realizing the clockwise and counterclockwise rotation control of the support platform 10.

[0058] like Figures 2 to 6 As shown, this embodiment provides a clamping mechanism 30 including a positioning plate 31, a shoe width fixing unit 32 and a shoe length fixing unit 33; the positioning plate 31 is arranged at the default placement position of the heel of the shoe to be tested; the shoe width fixing unit 32 is used to fix the shoe to be tested in the width direction; the shoe length fixing unit 33 is used to position the shoe to be tested in the length direction.

[0059] During application, by adjusting the shoe width fixing unit 32, the shoe width fixing unit 32 can clamp shoes of different widths; similarly, by adjusting the shoe length fixing unit 33, the shoe length fixing unit 33 can position shoes of different lengths.

[0060] like Figure 3 and Figure 4As shown, in this embodiment, a positioning plate 31 is provided with a positioning groove 311 on the surface away from the default placement of the shoe to be tested; the shoe width fixing unit 32 includes a shoe width guide rail 321, a shoe width slider 322, a shoe width connecting block 323, a clamping plate 324, a two-way reverse threaded screw 325 and a handle 326; the shoe width guide rail 321 is extended along the width direction of the default placement state of the shoe to be tested; the two shoe width sliders 322 are slidably installed on the shoe width guide rail 321; the two shoe width connecting blocks 323 are respectively connected and fixed to the two shoe width sliders 322; in the default placement state of the shoe to be tested, In the width direction of the state, the two clamps 324 are respectively arranged on the opposite sides of the positioning plate 31, and the two clamps 324 are respectively connected and fixed to the two shoe width connecting blocks 323; the two-way reverse threaded screw 325 passes through the positioning groove 311 and the two shoe width connecting blocks 323; the middle part of the two-way reverse threaded screw 325 is provided with a positioning block 327, and the positioning block 327 is clamped in the positioning groove 311; the reverse threads at both ends of the two-way reverse threaded screw 325 are respectively threadedly connected to the two shoe width connecting blocks 323; the handle 326 is connected and fixed to one end of the two-way reverse threaded screw 325.

[0061] When in use, the instep of the shoe to be tested is placed against the positioning plate 31, and then the bidirectional reverse-threaded screw 325 is rotated by turning the handle 326 to rotate the two shoe width connecting blocks 323 so that the two shoe width connecting blocks 323 move toward each other until the two clamping plates 324 clamp the two sides of the shoe to be tested, thereby achieving the clamping of the shoe width fixing unit 32 in the width direction of the shoe to be tested; similarly, if it is necessary to clamp a wider shoe to be tested in the width direction, it is only necessary to reversely turn the bidirectional reverse-threaded screw 325 by the handle 326 to make the two shoe width connecting blocks 323 move away from each other until the spacing between the two clamping plates 324 matches the width of the shoe to be tested.

[0062] like Figure 3 , Figure 5 and Figure 6As shown, in this embodiment, a toe guide slot 11 is arranged on the support platform 10, and the toe guide slot 11 is extended along the length direction of the default placement state of the shoe to be tested; the shoe length fixing unit 33 includes a toe placement plate 331, a heel placement plate 332, a shoe length guide rail 333, a shoe length slider 334, a shoe length connector 335, a toe support frame 336, a shoe length transmission block 337, a shoe length screw rod 338 and a shoe length motor 339; the toe placement plate 331 is arranged opposite to the toe guide slot 11; the heel placement plate 332 is arranged adjacent to the positioning plate 31; the shoe length guide rail 333 is extended along the length direction of the default placement state of the shoe to be tested; the shoe length slider 334 is arranged adjacent to the positioning plate 31; the shoe length guide rail 333 is extended along the length direction of the default placement state of the shoe to be tested; the shoe length connector 335 is arranged adjacent to the positioning plate 31; the shoe length guide rail 333 is extended along the length direction of the default placement state of the shoe to be tested; the shoe length slider 335 is arranged adjacent to the positioning plate 31; the shoe length guide rail 333 is extended along the length direction of the default placement state of the shoe to be tested; the shoe length slider 336 is arranged adjacent to the positioning plate 31; the shoe length guide rail 333 is extended along the length direction of the default placement state of the shoe to be tested; the shoe length slider 334 is arranged adjacent to the positioning plate 31; the shoe length guide rail 333 is extended along the length direction of the default placement state of the shoe to be tested; the shoe length slider 335 is arranged adjacent to the positioning plate 31; the shoe length guide rail 333 is extended along the length direction of the default placement state of the shoe to be tested; the shoe length slider 334 is arranged adjacent to the positioning plate 31 Block 334 is slidably installed on the shoe length guide rail 333; one end of the shoe length connecting piece 335 is connected and fixed to the shoe length slider 334, and the other end of the shoe length connecting piece 335 extends to the bottom of the support platform 10 and is connected and fixed to the toe support frame 336; the toe support frame 336 passes through the toe guide groove 11 and is connected to the toe placement plate 331; the shoe length transmission block 337 is arranged on the toe support frame 336; the shoe length lead screw 338 is extended along the length direction of the default placement state of the shoe to be tested, and the shoe length lead screw 338 is threadedly connected to the shoe length transmission block 337; the shoe length motor 339 is connected to the support platform 10, and the shoe length motor 339 is used to drive the shoe length lead screw 338 to rotate.

[0063] When applying, the shoe to be tested can be first clamped and fixed by the shoe width fixing unit 32, and then the shoe length motor 339 drives the shoe length screw 338 to rotate, so as to control the shoe length transmission block 337, the toe support frame 336, the shoe length connecting piece 335, the shoe length slider 334 and the toe placement plate 331 to move together. When the toe placement plate 331 is placed on the toe of the shoe to be tested, the length direction positioning of the shoe to be tested is completed.

[0064] like Figure 5 and Figure 6 As shown, in this embodiment, the support platform 10 is provided with a heel through hole 12 and a heel support frame 13, and the heel support frame 13 is arranged opposite to the heel through hole 12 at the bottom of the support platform 10; the force data acquisition mechanism includes a forefoot force sensor 61 and a heel force sensor 62; the forefoot force sensor 61 is arranged on the toe support frame 336, and the forefoot force sensor 61 passes through the toe guide groove 11 and is connected to the toe placement plate 331; the heel force sensor 62 is arranged on the heel support frame 13, and the heel force sensor 62 passes through the heel through hole 12 and is connected to the heel placement plate 332.

[0065] During application, once the shoe to be tested is in a pressure test state, the toe of the shoe to be tested will apply pressure to the forefoot force sensor 61, and the heel of the shoe to be tested will apply pressure to the heel force sensor 62, so that the force data acquisition mechanism can know the force conditions of the forefoot and heel of the shoe to be tested.

[0066] like Figure 2 and Figure 7 As shown, this embodiment provides a translation mechanism 40 including a translation guide rail 41, a translation slider 42, a translation platform 43, a translation connecting block 44, a translation screw 45, a translation transmission block 46 and a translation motor 47; the translation guide rail 41 is extended along the length direction of the default placement state of the shoe to be tested; the translation slider 42 is slidably installed on the translation guide rail 41; the translation platform 43 is connected to the translation slider 42, and a lifting force application mechanism 50 is provided on the translation platform 43; the translation connecting block 44 is arranged below the translation platform 43; the translation screw 45 passes through the translation connecting block 44; the translation transmission block 46 is threadedly connected to the translation screw 45, and the translation transmission block 46 is connected and fixed to the translation connecting block 44; the translation motor 47 is used to drive the translation screw 45 to rotate.

[0067] During application, in order to cope with the shoes to be tested in different placement states, the translation motor 47 can be used to drive the translation screw 45 to rotate, thereby driving the translation transmission block 46, the translation connection block 44, the translation platform 43, the translation slider 42 and the lifting and force application mechanism 50 to translate synchronously, thereby ensuring that the lifting and force application mechanism 50 can apply force to the shoes to be tested in the appropriate position.

[0068] like Figure 2 , Figure 7 and Figure 8 As shown, this embodiment provides a lifting force applying mechanism 50 including a lifting motor, a gear set 51, a rack 52, a lifting guide rail 53 and a force applying rod 54; the lifting motor is used to drive the gear set 51 to rotate; the gear set 51 is meshed with the rack 52; the rack 52 is slidably installed on the lifting guide rail 53; the lifting guide rail 53 is extended vertically; the force applying rod 54 is connected to the bottom of the rack 52.

[0069] During application, the lifting motor drives the gear set 51 to rotate, and the gear set 51 can drive the rack 52 to move up and down. Therefore, when the rack 52 drives the force rod 54 to descend, the force rod 54 can be used to apply force to the shoe to be tested, thereby completing the relevant test.

[0070] like Figure 7 and Figure 8 As shown, the force data acquisition mechanism of this embodiment includes a force sensor 63 , and the force sensor 63 is connected between the rack 52 and the force rod 54 .

[0071] During application, once the force-applying rod 54 applies force to the shoe to be tested, a corresponding force will be generated and transmitted to the force-applying sensor 63, so that the current force-applying state can be known.

[0072] like Fig. 9As shown, this embodiment sets the force data acquisition mechanism including a first distance measuring sensor 641, a second distance measuring sensor 642 and a third distance measuring sensor 643 arranged above the shoe to be tested. Specifically, the distance measuring sensors at this time are all laser distance measuring sensors; the first distance measuring sensor 641 and the second distance measuring sensor 642 are arranged on the lifting force application mechanism 50 in a manner of being arranged on the same horizontal line, and the first distance measuring sensor 641 and the second distance measuring sensor 642 are used to detect whether the inner surface of the sole corresponding to the force point of the forefoot and the force point of the heel of the shoe to be tested is in a horizontal state; the third distance measuring sensor 643 is used to detect the displacement change of the shoe to be tested during the test.

[0073] For example, after the shoe to be tested is placed stably, Figure 6 and Fig. 9 As shown, the lifting force-applying mechanism 50 will control the force-applying rod 54 to move downward, and the translation mechanism 40 will control the force-applying rod 54 to move horizontally until the force-applying rod 54 abuts against the inner surface of the waist groove of the sole, and then the position of the forefoot force sensor 61 of the shoe is moved horizontally. When the force values ​​measured by the forefoot force sensor 61 and the heel force sensor 62 are equal, the positions of the forefoot force point and the heel force point are determined.

[0074] The first ranging sensor 641 and the second ranging sensor 642 will emit lasers to the forefoot force point and the heel force point of the shoe to be tested. When the distances measured by the first ranging sensor 641 and the second ranging sensor 642 are equal, it can be determined that the inner surface of the sole corresponding to the forefoot force point and the heel force point of the shoe to be tested is placed horizontally.

[0075] The inner surface of the sole corresponding to the force point on the forefoot and the force point on the heel of the shoe to be tested is placed horizontally, and the center point between the two is the subsequent force application point position.

[0076] After the position of the subsequent force application point is confirmed, the lifting force application mechanism 50 controls the force application rod 54 to apply a preset pressure to the force application point, and each time the force application rod 54 applies pressure to the sole, the third ranging sensor 643 will emit a laser to the sole for detection, so as to determine the displacement of the sole moving downward, so the value of the shoe deformation can be obtained by calculating the difference between each displacement, and the bending stiffness performance of the shoe to be tested can be judged by the pressure and deformation curve.

[0077] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A whole shoe bending stiffness tester, characterized in that: It includes a support platform, a tilting mechanism, a clamping mechanism, and a translation mechanism, a lifting force application mechanism and a force data acquisition mechanism arranged above the support platform; The tilting mechanism is rotatably connected to one side of the support platform, and the tilting mechanism is used to control the rotation of the support platform; The clamping mechanism is arranged on the supporting platform, and is used to clamp and fix the shoe to be tested on the supporting platform; The translation mechanism is connected to the lifting and forcing mechanism, and the translation mechanism is used to drive the lifting and forcing mechanism to move horizontally to the top of the shoe to be tested; The lifting force applying mechanism is used to apply pressure to the shoe to be tested; The force data acquisition mechanism is arranged at the forefoot and heel of the shoe where the shoe to be tested is placed, and on the lifting force application mechanism, and the force data acquisition mechanism is used to obtain the force test data of the shoe to be tested.

2. The whole shoe bending stiffness tester according to claim 1, characterized in that: The tilting mechanism comprises a tilting base, a tilting connection seat, a tilting axis and a tilting motor; The tilting base is arranged on the base of the whole shoe bending stiffness tester; The tilting connection seat is arranged at the bottom of the supporting platform; The tilting shaft is rotatably connected to the tilting base, and the tilting shaft is fixedly connected to the tilting connecting seat; The tilt motor is used to drive the tilt axis to rotate.

3. The whole shoe bending stiffness tester according to claim 1, characterized in that: The clamping mechanism includes a positioning plate, a shoe width fixing unit and a shoe length fixing unit; The positioning plate is arranged at the default placement position of the heel of the shoe to be tested; The shoe width fixing unit is used to fix the shoe to be tested in its width direction; The shoe length fixing unit is used to position the shoe to be tested in its length direction.

4. The whole shoe bending stiffness tester according to claim 3, characterized in that: The surface of the positioning plate facing away from the default placement position of the shoe to be tested is provided with a positioning groove; The shoe width fixing unit comprises a shoe width guide rail, a shoe width slider, a shoe width connecting block, a clamping plate, a bidirectional reverse threaded screw and a handle; The shoe width guide rail is arranged to extend along the width direction of the shoe to be tested in the default placement state; The two shoe width sliders are slidably mounted on the shoe width guide rail; The two shoe width connecting blocks are respectively connected and fixed to the two shoe width sliding blocks; In the width direction of the shoe to be tested in the default placement state, the two clamps are respectively arranged on two opposite sides of the positioning plate, and the two clamps are respectively connected and fixed to the two shoe width connecting blocks; The bidirectional reverse threaded screw rod passes through the positioning groove and the two shoe width connecting blocks; a positioning block is provided in the middle of the bidirectional reverse threaded screw rod, and the positioning block is clamped in the positioning groove; the reverse threads at both ends of the bidirectional reverse threaded screw rod are respectively threadedly connected with the two shoe width connecting blocks; The handle is connected and fixed to one end of the bidirectional reverse threaded screw rod.

5. The whole shoe bending stiffness tester according to claim 3, characterized in that: The support platform is provided with a shoe toe guide slot, and the shoe toe guide slot is extended along the length direction of the shoe to be tested in a default placement state; The shoe length fixing unit includes a toe placement plate, a heel placement plate, a shoe length guide rail, a shoe length slider, a shoe length connector, a toe support frame, a shoe length transmission block, a shoe length screw rod and a shoe length motor; The toe placement plate is arranged opposite to the toe guide slot; The shoe heel placement plate is arranged adjacent to the positioning plate; The shoe length guide rail is arranged to extend along the length direction of the shoe to be tested in a default placement state; The shoe length slider is slidably mounted on the shoe length guide rail; One end of the shoe length connecting piece is connected and fixed to the shoe length sliding block, and the other end of the shoe length connecting piece extends to the bottom of the supporting platform and is connected and fixed to the toe support frame; The toe support frame passes through the toe guide slot and is connected to the toe placement plate; The shoe length transmission block is arranged on the shoe toe support frame; The shoe length screw rod is arranged to extend along the length direction of the shoe to be tested in the default placement state, and the shoe length screw rod is threadedly connected to the shoe length transmission block; The shoe length motor is connected to the support platform, and the shoe length motor is used to drive the shoe length screw rod to rotate.

6. The whole shoe bending stiffness tester according to claim 5, characterized in that: The support platform is provided with a heel through hole and a heel support frame, and the heel support frame is arranged at the bottom of the support platform opposite to the heel through hole; The force data acquisition mechanism includes a shoe forefoot force sensor and a shoe heel force sensor; The shoe forefoot force sensor is arranged on the shoe toe support frame, and the shoe forefoot force sensor passes through the shoe toe guide slot and is connected to the shoe toe placement plate; The heel force sensor is arranged on the heel support frame, and the heel force sensor passes through the heel through hole and is connected to the heel placement plate.

7. The whole shoe bending stiffness tester according to claim 1, characterized in that: The translation mechanism comprises a translation guide rail, a translation slider, a translation platform, a translation connecting block, a translation lead screw, a translation transmission block and a translation motor; The translation guide rail is arranged to extend along the length direction of the shoe to be tested in a default placement state; The translation slider is slidably mounted on the translation guide rail; The translation platform is connected to the translation slider, and the lifting force application mechanism is provided on the translation platform; The translation connection block is arranged below the translation platform; The translation screw rod passes through the translation connecting block; The translation transmission block is threadedly connected to the translation lead screw, and the translation transmission block is fixedly connected to the translation connection block; The translation motor is used to drive the translation screw to rotate.

8. The whole shoe bending stiffness tester according to claim 1, characterized in that: The lifting force applying mechanism comprises a lifting motor, a gear set, a rack, a lifting guide rail, a force applying rod and a force applying sensor; The lifting motor is used to drive the gear set to rotate; The gear set is meshed with the rack; The rack is slidably mounted on the lifting guide rail; The lifting guide rail is arranged to extend vertically; The force application rod is connected to the lower part of the rack; The force sensor is connected between the rack and the force rod.

9. The whole shoe bending stiffness tester according to claim 1, characterized in that: The force data acquisition mechanism includes a first distance measuring sensor, a second distance measuring sensor and a third distance measuring sensor which are arranged above the shoe to be tested; The first distance measuring sensor and the second distance measuring sensor are arranged on the lifting force applying mechanism in a manner of being arranged on the same horizontal line, and the first distance measuring sensor and the second distance measuring sensor are used to detect whether the inner surface of the sole corresponding to the force points of the forefoot and the heel of the shoe to be tested is in a horizontal state; The third distance measuring sensor is used to detect the displacement change of the shoe to be tested during the test.

10. A method for testing the bending stiffness of a whole shoe, characterized in that: The whole shoe bending stiffness tester according to any one of claims 1 to 9 is used, and comprises the following steps: S1, placing the shoe to be tested on the support platform, and clamping and fixing the shoe to be tested by using the clamping mechanism; S2, the lifting force-applying mechanism applies pre-force to the waist of the shoe to be tested, and the force data acquisition mechanism detects the current forefoot force point and heel force point of the shoe to be tested, and marks them; S3, the tilting mechanism controls the support platform to tilt so that the inner surface of the sole corresponding to the forefoot force point and the heel force point is placed horizontally, and the midpoint between the two is taken as the subsequent force application point; S4, using the lifting force application mechanism to apply pressure to the subsequent force application points in steps, and using the force data acquisition mechanism to detect the downward displacement of the sole of the shoe to be tested; S5, calculating the displacement difference of the sole of the shoe to be tested each time when it moves downward to obtain the value of the deformation of the shoe to be tested, and judging the bending stiffness performance of the shoe to be tested through the pressure and deformation curve of the shoe to be tested.

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