Flexural Resistance Test Method and Flexural Resistance Test Device for Footwear Products

Abstract

The present application relates to the technical field of performance testing of footwear products, and provides a flex resistance test method and a flex resistance test device for footwear products. The flex resistance test device for footwear products includes: a base body, a fixed pedal, and a pedal group located in front of the fixed pedal in the length direction. The pedal group includes at least three swing pedals arranged at intervals in the width direction of the fixed pedal. The fixed pedal is fixedly connected to the base body, and each swing pedal is hinged to the base body along the same hinge axis, and the hinge axis of the swing pedal extends along the width direction of the fixed pedal; a driving mechanism arranged on the base body, and the driving mechanism can independently drive each swing pedal to swing around the hinge axis; a fixing mechanism, which is movably arranged on the base body and is used to fix the shoes to be tested on the fixed pedal. The flex resistance test device for footwear products can precisely bend the front part of the shoes in a manner of applying local force.

Description

Technical Field

[0001] This application relates to the technical field of performance testing of footwear products. More specifically, it relates to a flex resistance test method and a flex resistance test device for footwear products. Background Art

[0002] With the improvement of people's living standards, the quality requirements for shoes are getting higher and higher. When shoes are worn and walked, a certain degree of bending will occur. Therefore, the quality of footwear products is closely related to their flex resistance. During the process of people wearing and using shoes, the most bent part of the shoes is the front part of the shoes. For this reason, a flex resistance test device for footwear products has been designed in the prior art. This flex resistance test device for footwear products mainly includes a fixed pedal and a whole swing pedal located in front of the fixed pedal. The middle and rear parts of the shoes to be tested are fixed on the fixed pedal, and the front part of the shoes is supported on the swing pedal. Then, a first motor is used to drive the whole swing pedal to swing continuously to repeatedly bend the shoes. After reaching a certain number of bending times, check whether there are phenomena such as sole breakage, cracking of the paste, and delamination to test the flex resistance and bending performance of the shoes under normal wearing conditions. The existing flex resistance test device only has a whole swing pedal, and the entire front part of the shoes is completely supported on this swing pedal and moves synchronously under the pressure of the whole swing pedal. However, the bending force of the shoes during actual use is more complex. It may be that the front part, middle part, or local points at the edge of the front part of the shoes are stressed and bent. Such a flex resistance test device cannot finely bend the front part of the shoes in a way of applying local force, so it cannot finely test the influence of the local force bending of the front part of the shoes on the flex resistance of the shoes. Summary of the Invention

[0003] In view of this, this application provides a flex resistance test device for footwear products to solve the technical problem that the existing flex resistance test device for footwear products cannot finely bend the front part of the shoes in a way of applying local force.

[0004] This application provides a flex resistance test device for footwear products, wherein the flex resistance test device for footwear products includes:

[0005] A base, a fixed pedal, and a pedal group located in front of the fixed pedal in the length direction of the fixed pedal. The pedal group includes at least 3 swing pedals arranged at intervals along the width direction of the fixed pedal. The fixed pedal is fixedly connected to the base, and each swing pedal is hinged to the base along the same hinge axis, and the hinge axis of the swing pedal extends along the width direction of the fixed pedal;

[0006] A driving mechanism arranged on the base, and the driving mechanism can independently drive each swing pedal to swing around the hinge axis;

[0007] A fixing mechanism, movably arranged on the base body, for fixing the shoes to be tested on the fixing pedal.

[0008] Further, the driving mechanism independently driving each swing pedal to swing around the hinge axis includes: driving each swing pedal to swing around the hinge axis in the same direction and synchronously with an equal angular velocity, driving each swing pedal to swing around the hinge axis in the same direction and synchronously with different swing amplitudes, and driving some of the swing pedals among each swing pedal to swing around the hinge axis.

[0009] Further, the fixing pedal is fixedly connected to the base body in the horizontal direction, the end of the swing pedal adjacent to the fixing pedal is hinged to the base body, and the lower surface of the end of the swing pedal far from the fixing pedal is separably supported on the base body;

[0010] The flexing test device includes an inclined guide rail, the driving mechanism includes a power output member, a slider and a propping member, the inclined guide rail is located below the fixing pedal and the pedal group and gradually extends upward along the arrangement direction of the fixing pedal and the pedal group, the slider is slidably arranged on the inclined guide rail, the power output member is in transmission connection with the slider to be able to drive the slider to reciprocally slide along the inclined guide rail, the propping member is selectively installed on the slider, when the propping member is installed on the slider, when the power output member drives the slider to reciprocally slide along the inclined guide rail, the propping member repeatedly props the pedal group to be able to make each swing pedal independently swing around the hinge axis.

[0011] Further, the slider is of a triangular structure, the upper surface of the slider is a horizontal plane, the upper surface of the slider never contacts each swing pedal when the slider reciprocally slides along the inclined guide rail, the slider has at least 3 mounting holes penetrating through its upper surface, the number and positions of the mounting holes correspond to the at least 3 swing pedals, the propping member includes at least 3 propping columns, among the at least 3 propping columns, there are propping columns with the same height and propping columns with different heights, and each propping column can be inserted into the mounting hole.

[0012] Further, the mounting holes are adjacent to the front end of the slider. The arrangement direction of the rear end and the front end of the slider is the same as that of the fixed pedal and the pedal group. The mounting holes also penetrate downward through the lower surface of the slider. The number of the inclined guide rails is the same as the number of the mounting holes, and the inclined guide rails are aligned with the lower ends of the respective mounting holes one by one. The inclined guide rails are magnetic guide rails. The lower end of the ejector pin is a magnetic end portion. The magnetic end portion further forms a limiting groove with a downward opening. When the ejector pin is inserted into the mounting hole, the magnetic end portion of the ejector pin is magnetically coupled with the corresponding inclined guide rail, and the magnetic end portion of the ejector pin limits the corresponding inclined guide rail in the limiting groove.

[0013] Further, through holes for the ejector pins corresponding to the number and positions of the at least three mounting holes are formed in the fixed pedal.

[0014] Further, the power output member is a first motor. The driving mechanism further includes a turntable, a driving rod, a sliding sleeve and a guide rod. The output shaft of the first motor is in transmission connection with the turntable. The turntable is rotatably connected to the base body through a rotating shaft coaxial with its central axis. The guide rod is arranged on one side of the turntable, and the axial direction of the guide rod is arranged along the radial direction of the turntable. The sliding sleeve is sleeved on the guide rod in a manner that can move axially along the guide rod and can be locked. One end of the driving rod is hinged to the sliding sleeve through a first hinge shaft, and the other end of the driving rod is hinged to the slider through a second hinge shaft. Both the first hinge shaft and the second hinge are parallel to the central rotating shaft of the turntable.

[0015] Further, an external thread is formed on the outer periphery of the guide rod, an internal thread that forms a threaded fit with the external thread is formed on the inner side of the sliding sleeve, and a second motor is connected to the axial end of the guide rod.

[0016] Further, the pedal group includes five swing pedals, and the sizes of the swing pedals are the same. The flexing test device has different models corresponding to shoes of different sizes. When the shoes to be tested are supported on the fixed pedal and the five swing pedals of the flexing test device of the corresponding model, the vertical projections of the five swing pedals can all pass through the shoes to be tested.

[0017] In addition, the present invention also provides a method for testing the flex resistance of a footwear product. Among them, the method for testing the flex resistance of the footwear product is implemented by using the above-mentioned flexing test device for footwear products. The method for testing the flex resistance of the footwear product includes a full swing test method and a partial swing test method;

[0018] The full swing test method includes the steps:

[0019] S1. Drive the slider to move. When the mounting holes on the slider are aligned with the through holes of the top columns on the fixed pedal, stop driving the slider. Select 5 top columns with the same size and insert them into the corresponding mounting holes through the respective through holes of the top columns;

[0020] S2. Support the shoe to be tested on the fixed pedal and 5 swing pedals of the flexing test device of the corresponding model, so that the front part of the shoe to be tested is supported on the 5 swing pedals and the middle and rear parts of the shoe to be tested are supported on the fixed pedal, and fix the shoe to be tested on the fixed pedal through the fixing mechanism;

[0021] S3. Drive the slider to reciprocate, so that the 5 top columns repeatedly push against the 5 swing pedals, thereby causing the 5 swing pedals to repeatedly bend the front part of the shoe to be tested;

[0022] S4. When the front part of the shoe to be tested is repeatedly bent a predetermined number of times, stop driving the slider to reciprocate. Remove the shoe to be tested and observe the sole state. The sole state at least includes whether there is fracture, cracking of the paste, and delamination, and then record the sole state;

[0023] S5. Drive the slider to move. When the top column on the slider is below the pedal group, the operator lifts each swing pedal by hand and removes each top column;

[0024] The local swing test method includes the steps:

[0025] T1. Drive the slider to move. When the mounting holes on the slider are aligned with the through holes of the top columns on the fixed pedal, stop driving the slider. Select at least 1 top column from 4 top columns with the same size and insert it into the corresponding mounting hole through the corresponding through hole of the top column;

[0026] T2. Support the shoe to be tested on the fixed pedal and 5 swing pedals of the flexing test device of the corresponding model, so that the front part of the shoe to be tested is supported on the 5 swing pedals and the middle and rear parts of the shoe to be tested are supported on the fixed pedal, and fix the shoe to be tested on the fixed pedal through the fixing mechanism;

[0027] T3. Drive the slider to reciprocate, so that at least 1 top column repeatedly pushes against the corresponding swing pedal, thereby causing the corresponding pedal to repeatedly bend the front part of the shoe to be tested;

[0028] T4. When the front part of the shoe to be tested is repeatedly bent a predetermined number of times, stop driving the slider to reciprocate. Remove the shoe to be tested and observe the sole state. The sole state at least includes whether there is fracture, cracking of the paste, and delamination, and then record the sole state;

[0029] T5. Drive the slider to move. When the ejector pin on the slider is located below the pedal group, the operator lifts the swing pedal with the ejector pin below by hand and removes the corresponding ejector pin.

[0030] The beneficial effects of the flexing test device for footwear products provided by the present invention are as follows:

[0031] Compared with the prior art, in the flexing test device for footwear products provided by the present invention, the pedal group includes at least 3 swing pedals arranged at intervals along the width direction of the fixed pedal, and the driving mechanism can independently drive each swing pedal to swing around the hinge axis. Therefore, compared with the situation in the traditional flexing test device where a whole swing pedal is used to repeatedly bend the shoes, the flexing test device for footwear products can more precisely test the flex resistance performance of the shoes in a way of local force application and bending. For example, when only the middle swing pedal among at least 3 swing pedals moves to apply force to bend the front part of the shoes, the influence of local point force application and bending in the middle of the front part of the shoes can be simulated. When only the swing pedals on both sides among at least 3 swing pedals move to apply force to bend the front part of the shoes, the influence of local point force application and bending on both sides of the front part of the shoes can be simulated. The front part of the shoes is precisely bent in a way of local force application, which is very beneficial for the refined research on the flex resistance performance analysis of footwear products. Because in the actual use process of shoes, due to the complexity of the environmental road conditions and the particularity of the human foot structure, it is often not the case that a whole swing pedal bends the shoes for force application and bending. Therefore, for the refined research on the flex resistance performance analysis of footwear products, by simulating the local point force application and bending of the front part of the shoes and analyzing the different influences of different point force applications on the wear and tear of the shoes, shoes with better quality and stronger pertinence (for example, only locally strengthening the more vulnerable parts) can be designed. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 It is a three-dimensional schematic diagram of a partial structure of a flexing test device for footwear products according to an embodiment of the present application;

[0034] Figure 2 It is Figure 1 The enlarged view of part A in;

[0035] Figure 3 It is a three-dimensional schematic diagram of a partial structure of a flexing test device for footwear products according to an embodiment of the present application;

[0036] Figure 4 is Figure 3 an enlarged view of portion A in

[0037] Figure 5 a perspective view of a partial structure of a flexing test device for a footwear product according to an embodiment of the present application;

[0038] Figure 6 is Figure 5 an enlarged view of portion A in

[0039] Figure 7 a perspective view of a top post in a flexing test device for a footwear product according to an embodiment of the present application;

[0040] Figure 8 a perspective view of a flexing test device for a footwear product according to an embodiment of the present application. Detailed Embodiments

[0041] To facilitate understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. One or at least three exemplary embodiments of the present application are given in the drawings to make the understanding of the technical solutions disclosed in the present application more accurate and thorough. However, it should be understood that the present application can be implemented in many different forms and is not limited to the embodiments described below.

[0042] The same or similar reference numerals in the drawings of the present application correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation to the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, scenario B, or the scenario where A and B are satisfied simultaneously.

[0044] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] See Figures 1 to 8 , the present invention provides a flexure test device for footwear products. Among them, the flexure test device for footwear products includes:

[0046] A base body 100 (specifically structures such as a support base, a support frame, and a support shell), a fixed pedal 1, and a pedal group located in front of the fixed pedal 1 in the length direction. The pedal group includes at least 3 swing pedals 2 arranged at intervals in the width direction of the fixed pedal 1. The fixed pedal 1 is fixedly connected to the base body 100, and each swing pedal 2 is hinged to the base body 100 along the same hinge axis, and the hinge axis of the swing pedal 2 extends along the width direction of the fixed pedal 1;

[0047] A driving mechanism provided on the base body 100, and the driving mechanism can independently drive each swing pedal 2 to swing around the hinge axis;

[0048] A fixing mechanism, which is movably provided on the base body 100 and is used to fix the shoes to be tested on the fixed pedal 1.

[0049] Since in the flexure test device for footwear products provided by the present invention, the pedal group includes at least 3 swing pedals 2 arranged at intervals in the width direction of the fixed pedal 1, and the driving mechanism can independently drive each swing pedal 2 to swing around the hinge axis, compared with the situation in the traditional flexure test device where a whole swing pedal is used to repeatedly bend the shoes, the flexure test device for footwear products can more precisely test the flexure performance of the shoes in a way of local force-bearing bending. For example, when only the middle swing pedal 2 among at least 3 swing pedals 2 acts to apply force to bend the front part of the shoes, it can simulate the influence when the local point positions in the middle of the front part of the shoes are force-bearing and bent. When only the swing pedals 2 on both sides among at least 3 swing pedals 2 act to apply force to bend the front part of the shoes, it can simulate the influence when the local point positions at both edges of the front part of the shoes are force-bearing and bent. Thus, the front part of the shoes can be precisely bent in a way of local force application, which is very beneficial for the refined research on the flexure performance analysis of footwear products. Because in the actual use process of footwear products, due to the complexity of the environmental road conditions and the particularity of the human foot structure, it is often not the case that the shoes are force-bearing and bent like a whole swing pedal bending the shoes. Therefore, for the refined research on the flexure performance analysis of footwear products, by simulating the local point positions in the front part of the shoes being force-bearing and bent and analyzing the different influences on the damage of the shoes under different point force applications, shoes with better quality and stronger pertinence (for example, only locally strengthening the more easily damaged parts) can be designed.

[0050] According to an embodiment of the present application, the driving mechanism independently driving each swing pedal 2 to swing around the hinge axis includes: driving each swing pedal 2 to swing around the hinge axis in the same direction with the same angular velocity synchronously so that the whole formed by each swing pedal 2 drives the shoe to bend (similar to the situation where a whole swing pedal bends the shoe), thereby simulating the situation where the front part of the shoe is bent under the overall force on a flat surface; driving each swing pedal 2 to swing around the hinge axis in the same direction with different swing amplitudes synchronously so that there are different swing amplitude bends and squeezes at multiple positions along the width direction of the front part of the shoe, thereby simulating the situation where the front part of the shoe is bent under the overall force on an uneven surface; and driving some of the swing pedals 2 among each swing pedal 2 to swing around the hinge axis, which also means that these swing pedals 2 do not swing (move), thereby simulating the situation where the front part of the shoe has local force-induced bending.

[0051] In addition, the flex resistance test device for the footwear product provided by the present invention can also be equipped with another fixed pedal 1. The other fixed pedal 1 is matched with an integral swing plate 3. The integral swing plate 3 is hinged to the base 100, which is convenient for the shoe to be tested to be bent in the traditional mode. The integral swing plate 3 can be driven by the driving mechanism provided by the present invention to achieve reciprocating swing, or can be driven by a swing motor 22 to achieve reciprocating swing.

[0052] According to a specific embodiment of the present application, the base 100 includes an upper support plate 101 connected to the side of the fixed pedal 1 away from the pedal group and the side of the other fixed pedal 1 away from the integral swing plate 3. Each fixed pedal 1 is provided with a fixing mechanism. The fixing mechanism includes a vertical electric guide rail 4 extending in the vertical direction arranged on the upper support plate 101, a horizontal electric guide rail 5 connected to the vertical electric guide rail 4 and extending in the horizontal direction, and a shoe pressing rod 6 connected to the horizontal electric guide rail 5. A shoe pressing block 7 is arranged at the lower end of the shoe pressing rod 6. In addition, a pushing air cylinder 8 is also arranged on the upper support plate 101. The piston rod of the pushing air cylinder 8 is provided with an arc-shaped pushing plate 9 located above the fixed pedal 1. The concave surface of the arc-shaped pushing plate 9 is used to abut against the tail end of the shoe to be tested.

[0053] According to an embodiment of the present application, the fixed pedal 1 is fixedly connected to the base 100 in the horizontal direction. The end of the swing pedal 2 adjacent to the fixed pedal 1 is hinged to the base 100, and the lower surface of the end of the swing pedal 2 away from the fixed pedal 1 is separably supported on the base 100;

[0054] The folding endurance test device includes an inclined guide rail 10. The driving mechanism includes a power output member 11, a slider 12, and a propping member. The inclined guide rail 10 is located below the fixed pedal 1 and the pedal group and gradually extends upward along the arrangement direction of the fixed pedal 1 and the pedal group. The base body 100 further includes an inclined support plate 102. The inclined guide rail 10 can be specifically arranged on the inclined support plate 102. The slider 12 is slidably arranged on the inclined guide rail 10. The power output member 11 is in transmission connection with the slider 12 to be able to drive the slider 12 to reciprocate and slide along the inclined guide rail 10. The propping member is selectively installed on the slider 12. When the propping member is installed on the slider 12, when the power output member 11 drives the slider 12 to reciprocate and slide along the inclined guide rail 10, the propping member repeatedly props the pedal group to be able to make each swing pedal 2 swing independently around the hinge axis.

[0055] According to an embodiment of the present application, the slider 12 has a triangular structure. The upper surface of the slider 12 is a horizontal plane. When the slider 12 reciprocates and slides along the inclined guide rail 10, the upper surface of the slider 12 never contacts each swing pedal 2. The slider 12 has at least 3 mounting holes 121 penetrating its upper surface. The number and positions of the mounting holes 121 correspond to at least 3 swing pedals 2. The propping member includes at least 3 top columns 13. The upper ends of the top columns 13 preferably have arc-shaped heads 131 for propping the swing pedal 2. Among the at least 3 top columns 13, there are top columns 13 with the same height and top columns 13 with different heights. Each top column 13 can be inserted into the mounting hole 121. The at least 3 top columns 13 preferably have top columns 13 of multiple model groups. Each group of model groups of the top columns has the same at least 3 top columns 13 matching the number of the mounting holes 121. After the same-sized top columns 13 are inserted into each mounting hole 121, it matches the above-mentioned "driving each swing pedal 2 to swing around the hinge axis synchronously at the same angular velocity in the same direction". After different-sized top columns 13 are inserted into each mounting hole 121, it matches the above-mentioned "driving each swing pedal 2 to swing around the hinge axis synchronously in the same direction with different swing amplitudes". When some mounting holes 121 are inserted with top columns 13 and some mounting holes 121 are not inserted with top columns 13, it matches the above-mentioned "driving some of the swing pedals 2 among each swing pedal 2 to swing around the hinge axis".

[0056] According to an embodiment of the present application, the mounting hole 121 is adjacent to the front end of the slider 12. The arrangement directions of the rear end and the front end of the slider 12 are the same as the arrangement direction of the fixed pedal 1 and the pedal group. The mounting hole 121 also penetrates downward through the lower surface of the slider 12. The number of the inclined guide rails 10 is the same as the number of the mounting holes 121, and the inclined guide rails 10 are aligned with the lower ends of the respective mounting holes 121 one by one. The inclined guide rails 10 are magnetic guide rails. The lower end of the ejector pin 13 is a magnetic end portion, and the magnetic end portion further forms a downward-opening limiting groove 132. When the ejector pin 13 is inserted into the mounting hole 121, the magnetic end portion of the ejector pin 13 is magnetically coupled with the corresponding inclined guide rail 10, and the magnetic end portion of the ejector pin 13 limits the corresponding inclined guide rail 10 in the limiting groove 132. In order to make the swing amplitude of the swing pedal 2 meet certain requirements, for example, as large as possible, the mounting hole 121 needs to be as close as possible to the front end of the slider 12, and the corresponding inserted pin inserted therein can also be as close as possible to the front end of the slider 12. Since the front end of the slider 12 gradually narrows, the advantage of this embodiment is that the lower end of the ejector pin 13 is magnetically coupled with the corresponding inclined guide rail 10, and through the further limitation of the limiting groove 132, the stability of the ejector pin 13 inserted into the corresponding mounting hole 121 is greatly improved.

[0057] See Figure 2 , Figure 5 and Figure 6 , in addition, through holes 14 for the ejector pins corresponding to the number and positions of at least three mounting holes 121 are formed in the fixed pedal 1, facilitating the ejector pin 13 to pass downward through the corresponding through holes 14 for the ejector pins to reach the mounting holes 121 of the slider 12.

[0058] According to a preferred embodiment of the present application, the power output member 11 is a first motor, and the driving mechanism further includes a turntable 15, a driving rod 16, a sleeve 17 and a guide rod 18. The output shaft of the first motor (power output member 11) is connected to the turntable 15 in a transmission manner, and the turntable 15 is rotatably connected to the base 100 through a rotating shaft coaxial with its central axis. Preferably, the output shaft of the first motor is connected to the turntable 15 through a gearbox 23, so that the rotation speed of the turntable 15 can be adjusted as needed. The guide rod 18 is arranged on one side of the turntable 15, and the axial direction of the guide rod 18 is arranged along the radial direction of the turntable 15. The sleeve 17 can be movably and lockably mounted on the guide rod 18 along the axial direction of the guide rod 18, and the driving rod 16 can be locked and mounted on the guide rod 18. One end of the driving rod 16 is hinged to the sliding sleeve 17 through the first hinge shaft 19, and the other end of the driving rod 16 is hinged to the slider 12 through the second hinge shaft 20. The first hinge shaft 19 and the second hinge are parallel to the central axis of the turntable 15. The sliding sleeve 17 can be axially moved by manual operation and manually mechanically locked to the guide rod 18 by a locking screw, etc., or it can be automatically moved and locked axially by electric control. When the sliding sleeve 17 is locked at different axial positions of the guide rod 18, the rotation radius of the first hinge shaft 19 rotating with the turntable 15 is different, so that the reciprocating movement distance of the slider 12 can be adjusted, and then the swing amplitude of the swing pedal 2 can be adjusted, thereby adjusting the bending test amplitude of the shoe to be tested.

[0059] According to a preferred embodiment of the present application, an external thread is formed on the outer periphery of the guide rod 18, an internal thread that is threadedly matched with the external thread is formed on the inner side of the sleeve 17, and a second motor 21 is connected to the axial end of the guide rod 18, that is, in this embodiment, the sleeve 17 realizes automatic axial movement and locking to the guide rod 18 through electronic control.

[0060] According to a preferred embodiment of the present application, the pedal group includes five swing pedals 2, each of which has the same size. The folding test device has different models corresponding to shoes of different sizes. When the shoes to be tested are supported on the fixed pedal 1 and five swing pedals 2 of the corresponding model of the folding test device, the vertical projections of the five swing pedals 2 can all pass through the shoes to be tested. The advantage of the preferred situation of five swing pedals 2 is that it can simulate as much as possible (not representing that it can completely simulate) the situation in which the five toes on the wearer's feet work together with the ground to bend the shoes, which is more conducive to simulating and exploring the bending situation of the shoes under real conditions.

[0061] In addition, the present invention also provides a folding resistance test method for footwear products, wherein the folding resistance test method for footwear products is implemented using the above-mentioned folding resistance test device for footwear products, and the folding resistance test method for footwear products includes a full swing test method and a partial swing test method;

[0062] The full swing test method includes the steps:

[0063] S1. Drive the slider 12 to move. When the mounting hole 121 on the slider 12 aligns with the top post through-hole 14 on the fixed pedal 1, stop driving the slider 12 to move. Select 5 top posts 13 with the same size and insert them into the corresponding mounting holes 121 through the respective top post through-holes 14;

[0064] S2. Support the shoe to be tested on the fixed pedal 1 and the 5 swing pedals 2 of the corresponding model of the flexure test device, such that the front part of the shoe to be tested is supported on the 5 swing pedals 2 and the middle and rear parts of the shoe to be tested are supported on the fixed pedal 1, and fix the shoe to be tested on the fixed pedal 1 through the fixing mechanism;

[0065] S3. Drive the slider 12 to reciprocate, so that the 5 top posts 13 repeatedly push against the 5 swing pedals 2, thereby causing the 5 swing pedals 2 to repeatedly bend the front part of the shoe to be tested;

[0066] S4. When the front part of the shoe to be tested is repeatedly bent a predetermined number of times (such as 10,000 times, 20,000 times, etc.), stop driving the slider 12 to reciprocate. Remove the shoe to be tested and observe the state of the sole. The state of the sole includes at least whether there is fracture, cracking of the paste, and delamination, and then record the state of the sole for subsequent analysis;

[0067] S5. Drive the slider 12 to move. When the top post 13 on the slider 12 is located below the pedal group, the operator lifts each swing pedal 2 by hand and removes each top post 13;

[0068] In addition, the driving of the slider 12 in S1 can adopt a slow driving mode, and the reciprocating movement of the slider 12 in S3 can adopt a fast driving mode. Compared with the slow driving mode, the moving speed of the slider 12 is faster. Specifically, adjusting the gearbox to change the rotation speed of the turntable 15 can adjust the moving speed of the slider 12.

[0069] The local swing test method includes the steps:

[0070] T1. Drive the slider 12 to move. When the mounting hole 121 on the slider 12 aligns with the top post through-hole 14 on the fixed pedal 1, stop driving the slider 12 to move. Select at least 1 top post 13 from 4 top posts 13 with the same size and insert it into the corresponding mounting hole 121 through the corresponding top post through-hole 14;

[0071] T2. Support the shoe to be tested on the fixed pedal 1 and the 5 swing pedals 2 of the corresponding model of the flexure test device, such that the front part of the shoe to be tested is supported on the 5 swing pedals 2 and the middle and rear parts of the shoe to be tested are supported on the fixed pedal 1, and fix the shoe to be tested on the fixed pedal 1 through the fixing mechanism;

[0072] T3. Drive the slider 12 to reciprocate, so that at least one ejector pin 13 repeatedly pushes against the corresponding swing pedal 2, thereby repeatedly bending the front part of the shoe to be tested by the corresponding pedal;

[0073] T4. After the front part of the shoe to be tested is repeatedly bent a predetermined number of times (such as 10,000 times, 20,000 times, etc.), stop driving the slider 12 to reciprocate, remove the shoe to be tested and observe the state of the sole. The state of the sole at least includes whether there are fractures, cracks in the paste, and delamination, and then record the state of the sole for subsequent analysis;

[0074] T5. Drive the slider 12 to move. When the ejector pin 13 on the slider 12 is located below the pedal group, the operator lifts the swing pedal 2 with the ejector pin 13 below it by hand and removes the corresponding ejector pin 13.

[0075] It should be noted that the above embodiments only represent the preferred embodiments of the present application, and the description is relatively specific and detailed, but it should not be construed as a limitation of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can be made, such as combining different features in each embodiment, etc., and these should all belong to the protection scope of the present application.

Claims

1. A folding test device for footwear products, characterized in that: The folding resistance test device for footwear products comprises: A base, a fixed pedal and a pedal group located in front of the fixed pedal in the length direction, the pedal group includes at least three swing pedals arranged at intervals along the width direction of the fixed pedal, the fixed pedal is fixedly connected to the base, each of the swing pedals is hinged to the base along the same hinge axis, and the hinge axis of the swing pedal extends along the width direction of the fixed pedal; A driving mechanism disposed on the base, the driving mechanism being capable of independently driving each swing pedal to swing around the hinge axis; The fixing mechanism is movably arranged on the base body and used for fixing the shoes to be tested on the fixed pedal; the driving mechanism independently drives each swing pedal to swing around the hinge axis, including: driving each swing pedal to swing synchronously in the same direction at a constant angular velocity around the hinge axis, driving each swing pedal to swing synchronously in the same direction at different swing amplitudes around the hinge axis, and driving some of the swing pedals to swing around the hinge axis; the fixed pedal is fixedly connected to the base body in a horizontal direction, the end of the swing pedal adjacent to the fixed pedal is hinged to the base body, and the lower surface of the end of the swing pedal away from the fixed pedal is detachably supported on the base body; The folding test device includes an inclined guide rail, and the driving mechanism includes a power output member, a slider and a top support member. The inclined guide rail is located below the fixed pedal and the pedal group and gradually extends upward along the arrangement direction of the fixed pedal and the pedal group. The slider is slidably arranged on the inclined guide rail, and the power output member is transmission-connected to the slider to drive the slider to slide back and forth along the inclined guide rail. The top support member can be selectively installed on the slider. When the top support member is installed on the slider, when the power output member drives the slider to slide back and forth along the inclined guide rail, the top support member repeatedly supports the pedal group to enable each swing pedal to swing independently around the hinge axis.

2. The folding resistance test device for footwear according to claim 1, characterized in that: The slider is a triangular structure, and the upper surface of the slider is a horizontal plane. When the slider slides back and forth along the inclined guide rail, the upper surface of the slider never contacts the swing pedals. The slider has at least 3 mounting holes passing through its upper surface, and the number and positions of the mounting holes correspond to the at least 3 swing pedals. The top support member includes at least 3 top columns, and the at least 3 top columns include top columns with the same height and top columns with different heights, and each top column can be inserted into the mounting hole.

3. The folding resistance test device for footwear according to claim 2, characterized in that: The mounting hole is adjacent to the front end of the slider, and the arrangement direction of the rear end and the front end of the slider is consistent with the arrangement direction of the fixed pedal and the pedal group. The mounting hole also penetrates downward through the lower surface of the slider. The number of the inclined guide rails is consistent with the number of the mounting holes and the inclined guide rails are aligned one-to-one with the lower ends of each mounting hole. The inclined guide rail is a magnetic guide rail, and the lower end of the top column is a magnetic end portion, and the magnetic end portion also forms a downwardly opening limiting groove. When the top column is inserted into the mounting hole, the magnetic end portion of the top column is magnetically matched with the corresponding inclined guide rail, and the magnetic end portion of the top column limits the corresponding inclined guide rail in the limiting groove.

4. The folding resistance test device for footwear according to claim 3, characterized in that: The fixed pedal is formed with top column passing holes corresponding to the number and positions of the at least three mounting holes.

5. The folding resistance test device for footwear according to claim 1, characterized in that: The power output part is a first motor, and the driving mechanism also includes a turntable, a driving rod, a sliding sleeve and a guide rod. The output shaft of the first motor is drivingly connected to the turntable, and the turntable is rotatably connected to the base through a rotating shaft coaxial with its central axis. The guide rod is arranged on one side of the turntable, and the axial direction of the guide rod is arranged along the radial direction of the turntable. The sliding sleeve can be movably and lockably mounted on the guide rod along the axial direction of the guide rod. One end of the driving rod is hinged to the sliding sleeve through a first hinge shaft, and the other end of the driving rod is hinged to the slider through a second hinge shaft. The first hinge shaft and the second hinge shaft are both parallel to the central rotating axis of the turntable.

6. The folding endurance test device for footwear according to claim 5, characterized in that: An external thread is formed on the outer periphery of the guide rod, an internal thread which is threadably matched with the external thread is formed on the inner side of the sliding sleeve, and a second motor is connected to the axial end of the guide rod.

7. The folding resistance test device for footwear according to claim 4, characterized in that: The pedal group includes 5 swing pedals, each of which has the same size. The folding test device has different models corresponding to shoes of different sizes. When the shoes to be tested are supported on the fixed pedals and 5 swing pedals of the folding test device of the corresponding model, the vertical projections of the 5 swing pedals can all pass through the shoes to be tested.

8. A method for testing the folding resistance of footwear products, characterized in that: The folding resistance test method of the footwear product is implemented by using the folding resistance test device of the footwear product according to claim 7, and the folding resistance test method of the footwear product includes a full swing test method and a partial swing test method; The full swing test method comprises the steps of: S1, driving the slider to move, when the mounting hole on the slider is aligned with the top post through hole on the fixed pedal, stop driving the slider to move, select 5 top posts of the same size, insert them through the top post through holes and insert them into the corresponding mounting holes; S2, supporting the shoes to be tested on the fixed pedal and five swing pedals of the corresponding model of the folding test device, so that the front part of the shoes to be tested is supported on the five swing pedals, and the middle and rear parts of the shoes to be tested are supported on the fixed pedals, and the shoes to be tested are fixed on the fixed pedals by the fixing mechanism; S3, driving the slider to reciprocate, so that the five supporting posts repeatedly support the five swinging pedals, so that the five swinging pedals repeatedly bend the front part of the shoe to be tested; S4, when the front part of the shoe to be tested is repeatedly bent for a predetermined number of times, the driving of the slider to reciprocate is stopped, the shoe to be tested is taken off to observe the state of the sole, the state of the sole at least including whether there is a break, cracking and debonding, and then the state of the sole is recorded; S5, driving the slider to move, when the top column on the slider is located below the pedal group, the operator lifts each swing pedal by hand and removes each top column; The local swing test method comprises the steps of: T1, drive the slider to move. When the mounting hole on the slider is aligned with the top post through hole on the fixed pedal, stop driving the slider to move, select at least one of the four top posts with the same size, insert it into the corresponding top post through hole and insert it into the corresponding mounting hole; T2. Support the shoes to be tested on the fixed pedal and five swing pedals of the corresponding model of the folding test device, so that the front part of the shoes to be tested is supported on the five swing pedals, and the middle and rear parts of the shoes to be tested are supported on the fixed pedals, and the shoes to be tested are fixed on the fixed pedals by the fixing mechanism; T3, driving the slider to reciprocate so that at least one of the push posts repeatedly supports the corresponding swing pedal, thereby causing the corresponding pedal to repeatedly bend the front part of the shoe to be tested; T4, when the front part of the shoe to be tested is repeatedly bent for a predetermined number of times, the driving of the slider to reciprocate is stopped, the shoe to be tested is taken off to observe the state of the sole, which at least includes whether there is a break, cracking, or debonding, and then the state of the sole is recorded; T5. Drive the slider to move. When the top post on the slider is located below the pedal group, the operator lifts the swing pedal with the top post underneath by hand and removes the corresponding top post.

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