A slippers hardness detection device

Abstract

The application relates to the technical field of material testing, and discloses a slippers hardness detection device which comprises a clamping mechanism, the clamping mechanism comprises a fixed base, a movable clamping unit, a bending execution unit and a second clamping plate assembly, the movable clamping unit comprises a moving table and a first clamping plate assembly; the bending execution unit comprises a bending rod, a lower swing rod and an upper swing rod; the second clamping plate assembly is rotationally arranged between two side plates; two ends of a shoe body are clamped by the first clamping plate assembly and the second clamping plate assembly respectively, and the bending rod abuts against the inner side surface of a to-be-detected part of the shoe body; the detection device further comprises a driving mechanism for driving the moving table to reciprocate up and down. The application is provided with a connecting rod mechanism and an observation side, realizes the visualization of the bending detection process of the slippers, is especially suitable for detecting high-molecular foaming slippers and other products sensitive to micro-damage, and greatly improves the intuitiveness of detection.

Description

Technical Field

[0001] This application relates to the field of materials testing technology, and in particular to a device for testing the hardness of slippers. Background Technology

[0002] The stiffness of slippers is a key indicator of their comfort and durability, and is crucial for product quality control. Currently, common slipper stiffness testing equipment typically employs a flat bending test method. This involves placing the slipper under test horizontally, fixing one end to a worktable, and periodically raising the other end via a mechanical mechanism, causing repeated bending deformation of the slipper body to assess its fatigue resistance and stiffness characteristics. However, because the slipper remains flat throughout the test, even during bending deformation, the bending area is obscured or difficult to observe directly. Testers cannot observe in real-time the initiation of cracks or material failure during dynamic bending; evaluation can only be made based on the results after the test, potentially leading to a delay in defect detection.

[0003] Especially for slippers made of polymer foam materials, the manufacturing process differs fundamentally from that of ordinary injection-molded slippers. Polymer foam slippers are made by mixing raw materials such as polymers, foaming agents, and cross-linking agents, then heating and pressurizing them in a mold. This causes the foaming agent to decompose and generate gas, forming a uniform, closed, or interconnected cell structure within the material. The material is then cured and shaped. This process gives the slippers lightweight, flexible, and good cushioning properties, but it also makes the cell structure prone to collapse or microcracks under repeated bending stress. The early development of these microscopic damages directly affects the product's lifespan. Because existing testing equipment cannot provide real-time visual observation of the bending points, it is difficult to capture the unique progressive damage process characteristic of foam materials.

[0004] Therefore, although existing slipper hardness testing technology can achieve basic bending test functions, it is limited by the flat-lay testing structure, which means that the condition at the bending point cannot be monitored in real time. This is particularly disadvantageous for products like polymer foam slippers that rely on the integrity of their microstructure, and may also mask early quality problems. Summary of the Invention

[0005] This application provides a slipper hardness testing device that uses a linkage mechanism and an observation side to visualize the slipper bending testing process. Furthermore, through an integrated adjustable-angle friction unit capable of lateral reciprocating motion, it can simultaneously simulate bending fatigue and friction wear in a single test. This device is particularly suitable for testing products sensitive to microscopic damage, such as polymer foam slippers, and greatly enhances the intuitiveness of the testing.

[0006] This application provides a slipper hardness testing device, including multiple clamping mechanisms for clamping the slipper body. Each clamping mechanism includes: a fixed base with parallel upright plates; a movable clamping unit including a moving platform that reciprocates vertically and a first clamping plate assembly rotatably mounted on the moving platform; a bending execution unit including a horizontally arranged bending rod, two lower swing rods, and two upper swing rods; and a second clamping plate assembly rotatably mounted between the two upright plates. The bending rod is located between the moving platform and the top of the upright plates. One end of each lower swing rod is hinged to the end of the bending rod, and the other end is hinged to the upper swing rod on the same side. On the upright plate; one end of each of the upper swing rods is hinged to the end of the bending rod, and the other end is hinged to the corresponding end of the moving platform; the first clamping plate assembly, the second clamping plate assembly, and the bending rod are all arranged facing the same observation side of the device; both ends of the shoe body are respectively clamped by the first clamping plate assembly and the second clamping plate assembly, and the bending rod abuts against the inner side of the part of the shoe body to be tested; the testing device also includes a driving mechanism for driving the moving platform to reciprocate up and down, and through the linkage of the lower swing rod and the upper swing rod, driving the bending rod to push the shoe body to form a bend towards the observation side.

[0007] Furthermore, the friction unit includes: a mounting frame, which is fixedly connected to the moving platform and moves synchronously; a friction element, which is mounted on the mounting frame and located on the side of the second clamping plate assembly away from the observation side, and the working surface of the friction element is bent toward the second clamping plate assembly; during the reciprocating motion stroke of the moving platform, the working surface of the friction element remains in contact with the surface of the shoe body that is clamped at one end of the second clamping plate assembly.

[0008] Furthermore, the friction unit also includes: an angle adjustment component; the angle adjustment component includes: a fixed short rod, horizontally arranged and with one end fixed to the inner wall of one side of the mounting frame, and the free end of the fixed short rod has a positioning hole; a movable toothed sleeve, sleeved on the fixed short rod and sliding along the axis of the fixed short rod, the outer wall of the movable toothed sleeve has a flange, and the end face of the movable toothed sleeve away from the inner wall of the mounting frame has a tooth; an elastic element, sleeved on the fixed short rod and pressing against the flange and the inner wall of the mounting frame, so that the movable toothed sleeve has a tendency to slide towards the outside of the mounting frame; and an adjustment rod, one end of which is rotatably disposed on the inner wall of the other side of the mounting frame. The upper end is fixed with a pin inserted into the positioning hole; a fixed toothed sleeve is fixed to the end of the adjusting rod near the fixed short rod, and the end face of the fixed toothed sleeve near the movable toothed sleeve is provided with a second tooth that meshes with the first tooth; wherein, the teeth at the end of the fixed toothed sleeve mesh with the teeth at the end of the movable toothed sleeve; the movable toothed sleeve has a pressing stroke, during which the first tooth and the second tooth disengage, and the adjusting rod rotates freely around its own axis; the movable toothed sleeve also has a locking position, at which the elastic element forces the first tooth and the second tooth to mesh with each other, for fixing the adjusting rod.

[0009] Furthermore, the friction unit also includes a lateral movement actuator for driving the lateral reciprocating motion of the friction element; the lateral movement actuator includes: a lateral movement sleeve, sleeved on the end of the adjusting rod away from the fixed short rod, the outer wall of the lateral movement sleeve having a flange two and a mounting portion; an elastic element two, sleeved on the adjusting rod and pressing against the flange two and the inner wall of the mounting frame, so that the lateral movement sleeve has a tendency to move towards the inner side of the mounting frame; a wedge block, fixedly installed on the upright plate and located below the movement trajectory of the adjusting rod, the inclined surface of the wedge block tilting towards the adjusting rod; a clamping rod, one end clamping the flange two, the other end maintaining contact with the inclined surface on the wedge block; wherein, the adjusting rod has an elongated guide slot along its axis, the friction element passes through the slot and moves laterally in the slot; a mounting bar is fixed on the friction element, the mounting bar passing through the guide slot and detachably connected to the mounting portion of the lateral movement sleeve.

[0010] Furthermore, a guide groove is provided on the inclined surface of the inclined block, and the end of the clamping rod away from the second flange is inserted into the guide groove.

[0011] Furthermore, the friction element includes a detachably connected fixing plate and a friction plate, the fixing plate passing through the slot, the mounting bar located at the edge of the fixing plate, and the friction plate maintaining contact with the surface of the shoe body.

[0012] Furthermore, the driving mechanism includes: a support plate, vertically fixed to the fixed base; a slide rail, fixed to the support plate; a slider, fixed to the side wall of the moving platform away from the first clamping plate assembly and slidably connected to the slide rail; a turntable, rotatably mounted on the support plate; a connecting rod, one end hinged to the edge of the turntable and the other end hinged to the slider; and a drive motor, mounted on the support plate and used to drive the turntable to rotate.

[0013] Furthermore, the first clamping plate assembly and the second clamping plate assembly have the same structure, both including: a rotating clamping plate with both ends for rotatable installation, and at least one pair of connecting bolts fixed on the side of the rotating clamping plate facing the observation side; and an adjusting clamping plate with through holes corresponding to the connecting bolts, and pressed onto the rotating clamping plate by the cooperation of nuts and connecting bolts to jointly clamp the shoe body.

[0014] One or more technical solutions provided in this application have at least the following technical effects or advantages: When the drive mechanism pushes the moving stage downwards, the linkage between the upper and lower swing arms forces the bending rod located between them to move towards the observation side. Since both ends of the shoe are clamped and fixed, the laterally moving bending rod lifts the middle of the shoe, causing it to bend and form an arched curve facing the observation side. This solves the problem of difficulty in observing the bending point when the shoe is flat in traditional equipment. It allows inspectors to observe the surface changes, wrinkles, or cracks at the bending point under bending stress in real time from the observation side without obstruction. This is particularly suitable for inspecting products sensitive to microscopic damage, such as polymer foam slippers, greatly improving the intuitiveness of the inspection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a slipper hardness testing device according to an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the clamping mechanism in the embodiments of this application; Figure 3 for Figure 2 Schematic diagram of the drive mechanism; Figure 4 This is a schematic diagram of the overall structure of the clamping mechanism in the embodiments of this application; Figure 5 for Figure 2 The back view diagram mainly illustrates the overall structure of the friction component, angle adjustment component, and lateral movement actuator; Figure 6 for Figure 5 A partial structural diagram, mainly illustrating the construction of the angle adjustment component and the lateral movement execution component; Figure 7 This is a cross-sectional schematic diagram of part 6, mainly illustrating the internal structure of the angle adjustment component; Figure 8 for Figure 6 A schematic diagram of the overall structure of the adjusting rod and friction components; Figure 9 for Figure 6 A schematic diagram of the overall structure of the transverse sliding sleeve and clamping rod; In the diagram: 100, shoe body; 1, clamping mechanism; 11, fixed base; 111, upright plate; 12, moving platform; 13, first clamping plate assembly; 14, bending rod; 15, lower swing rod; 16, upper swing rod; 17, second clamping plate assembly; 31, mounting frame; 32, friction element; 3201, fixed plate; 3202, friction plate; 321, mounting bar; 33, angle adjustment element; 331, fixed short rod; 3311, positioning hole; 332, movable toothed sleeve; 3321, flange one; 3322, tooth one; 333, elastic element one; 3 34. Adjusting rod; 3341. Pin; 3342. Guide slot; 335. Fixed tooth sleeve; 3351. Tooth part two; 34. Lateral movement actuator; 341. Lateral movement sleeve; 3411. Flange two; 3412. Mounting part; 342. Elastic part two; 343. Inclined block; 3431. Guide groove; 344. Clamping rod; 2. Drive mechanism; 21. Support plate; 22. Slide rail; 23. Slider; 24. Turntable; 25. Connecting rod; 26. Drive motor; 201. Rotating clamping plate; 2011. Connecting bolt; 202. Adjusting clamping plate. Detailed Implementation

[0016] To better understand the technical solution of this application, the technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Reference Figure 1 and Figure 2 A slipper hardness testing device includes multiple clamping mechanisms 1 and driving mechanisms 2 for clamping the slipper body 100. The clamping mechanisms 1 and driving mechanisms 2 can be in a one-to-one correspondence, with each clamping mechanism 1 corresponding to one driving mechanism 2. Each clamping mechanism 1 includes a fixed base 11, on which two parallel upright plates 111 are vertically fixed. The upright plates 111 constitute the main support structure of the clamping mechanism 1.

[0018] Continue to refer to Figure 2 The clamping mechanism 1 includes a movable clamping unit, a bending execution unit, and a second clamping plate assembly 17.

[0019] The movable clamping unit consists of a movable platform 12 that can move up and down and a first clamping plate assembly 13 rotatably mounted on the movable platform 12. The movable platform 12 is located above the fixed base 11 and is located on one side of the vertical plane where the line connecting the two upright plates 111 is located; this side is defined as the non-observation side.

[0020] The bending actuator consists of a horizontally positioned bending rod 14, two lower swing rods 15, and two upper swing rods 16. The bending rod 14 is horizontally positioned between the bottom of the moving platform 12 and the top of the two upright plates 111. One end of each lower swing rod 15 is hinged to the end of the bending rod 14, and the other end is hinged to the outer wall of the upright plate 111 on the same side. Similarly, one end of each upper swing rod 16 is hinged to the end of the bending rod 14, and the other end is hinged to the corresponding end of the outer wall of the moving platform 12. The lower swing rods 15 and upper swing rods 16 have a certain angle in the initial state, forming a deformable linkage mechanism.

[0021] The second clamping plate assembly 17 is rotatably positioned between the two side uprights 111.

[0022] The first clamping plate assembly 13, the second clamping plate assembly 17, and the bending rod 14 are all positioned facing the same side of the equipment, which is defined as the observation side. During testing, both ends of the shoe body 100 are clamped and fixed by the first clamping plate assembly 13 and the second clamping plate assembly 17, respectively. The bending rod 14 rests against the inner side of the part of the shoe body 100 to be tested, which is usually the middle of the sole.

[0023] The clamping mechanism 1 works by using a drive mechanism 2 to drive the moving stage 12 in a reciprocating motion. When the drive mechanism 2 pushes the moving stage 12 downwards, the upper swing arm 16 and the lower swing arm 15 are linked together, forcing the bending rod 14 located between them to move towards the observation side. Since both ends of the shoe body 100 are clamped and fixed, the laterally moving bending rod 14 will lift the middle of the shoe body 100, causing the shoe body 100 to bend and deform, forming an arched bend facing the observation side. Therefore, it solves the problem of the difficulty in observing the bending point when the shoe body is flat in traditional equipment, allowing the inspector to observe the surface changes, wrinkles, or cracks at the bending point of the shoe body under bending stress in real time without obstruction from the observation side, thus realizing the visualization of the inspection process.

[0024] Reference Figure 3As shown, the first clamping plate assembly 13 and the second clamping plate assembly 17 have the same structure, both including a rotating clamping plate 201 and an adjusting clamping plate 202. The two ends of the rotating clamping plate 201 are rotatably mounted on the corresponding moving platform 12 or upright plate 111 via pivots, and at least one pair of connecting bolts 2011 are fixed to its side facing the observation side. The adjusting clamping plate 202 has through holes corresponding to the connecting bolts 2011. By tightening the nut, the adjusting clamping plate 202 can be pressed onto the rotating clamping plate 201, thereby jointly clamping the end of the shoe body 100 placed between the two. The rotating clamping plate is designed to adapt to different toe or heel angles generated during bending.

[0025] Reference Figure 4 The drive mechanism 2 employs a crank-slider mechanism. The drive mechanism 2 includes a support plate 21, a slide rail 22, a slider 23, a turntable 24, a connecting rod 25, and a drive motor 26. A support plate 21 is vertically fixed to a fixed base 11, and a vertical slide rail 22 is fixed on the support plate 21. A slider 23 is fixed to the side wall of the moving platform 12 opposite to the first clamping plate assembly 13 and is slidably connected to the slide rail 22. A turntable 24 is rotatably mounted on the support plate 21 via a rotating shaft. One end of a connecting rod 25 is hinged to the eccentric edge of the turntable 24, and the other end is hinged to the slider 23. A drive motor 26 is mounted on the support plate 21, and its output shaft is connected to the turntable 24. When the drive motor 26 operates, it drives the turntable 24 to rotate, and the rotational motion is converted into the reciprocating linear motion of the slider 23 along the slide rail 22 via the connecting rod 25, thereby driving the moving platform 12 to perform periodic reciprocating motion.

[0026] Reference Figures 5-6 To further simulate the combined stress that slippers experience during actual wear, this slipper hardness testing device also integrates a friction unit.

[0027] The friction unit includes a mounting frame 31 fixedly connected to the moving platform 12. The mounting frame 31 consists of two vertical rods located at opposite ends of the moving platform 12. One end of each rod is fixed to the inner wall of the moving platform 12, and the other end extends downward to the top of the side of the upright plate 111 facing away from the observation side. The mounting frame 31 moves up and down synchronously with the moving platform 12. A friction element 32 is mounted on the mounting frame 31. The friction element 32 is located on the side of the second clamping plate assembly 17 facing away from the observation side, i.e., the back of the fixed end of the slipper. The working surface of the friction element 32 is designed as an arc surface curved towards the second clamping plate assembly 17, so that throughout the entire reciprocating stroke of the moving platform 12, the curved working surface can maintain contact with and apply pressure to the surface of the end of the shoe body 100 clamped by the second clamping plate assembly 17. When the moving platform 12 moves up and down, the friction element 32 continuously scrapes the surface of the shoe body under this pressure, simulating friction and wear during walking, and realizing a dual test of bending and friction under a single drive.

[0028] To adapt to the curved surfaces of different shoe types, the friction unit integrates an angle adjustment component 33 for fine-tuning the working angle of the friction component 32.

[0029] like Figure 6 , Figure 7 and Figure 8 As shown, the angle adjustment component 33 includes a fixed short rod 331, a movable toothed sleeve 332, an elastic element 333, an adjustment rod 334, and a fixed toothed sleeve 335. A fixed short rod 331 is horizontally positioned with one end fixed to the inner wall of one side of the mounting frame 31, and a positioning hole 3311 is provided at its free end. A movable toothed sleeve 332 is fitted onto the fixed short rod 331, and the movable toothed sleeve 332 is slidably connected to the fixed short rod 331 via a groove, with the sliding direction consistent with the axial direction of the movable toothed sleeve 332. The outer wall of the movable toothed sleeve 332 is provided with a flange 3321, and the end face of the movable toothed sleeve 332 away from the inner wall of the mounting frame 31 is machined with teeth 3322. A spring, serving as the elastic element 333, is fitted onto the fixed short rod 331 and presses against the flange 3321 and the inner wall of the mounting frame 31, causing the movable toothed sleeve 332 to have an outward (… Figure 7 The trend is to slide from the center to the right.

[0030] One end of an adjusting rod 334 is rotatably connected to the inner wall of the mounting frame 31 on the other side. A pin 3341 is fixed to the other end of the adjusting rod 334, and this pin 3341 is inserted into the positioning hole 3311 at the free end of the fixed short rod 331. A fixing toothed sleeve 335 is fixedly installed on the end of the adjusting rod 334 near the fixed short rod 331, and its end face has a second tooth 3351 that meshes with the first tooth 3322. A friction element 32 is installed on the adjusting rod 334.

[0031] When adjusting, use your fingers to point inwards ( Figure 4 Press the movable toothed sleeve 332 (from center to left) to overcome the elastic force of the elastic element 333, causing the first tooth 3322 to disengage from the second tooth 3351. At this time, the adjusting rod 334 (along with the friction element 32 on it) can rotate freely around its axis to adjust to the desired angle. After releasing, the movable toothed sleeve 332 returns to its original position under the push of the elastic element 333, and the first tooth 3322 re-engages with the second tooth 3351, firmly locking the adjusting rod 334 and the friction element 32 at the current angle.

[0032] Reference Figure 6 , Figure 8 and Figure 9 As shown, to further enhance the realism of the friction test, the friction unit in this embodiment also integrates a lateral movement execution component 34, so that the friction component 32 can perform small-amplitude lateral reciprocating scraping while pressing the shoe body.

[0033] The lateral movement actuation assembly 34 includes a lateral movement sleeve 341, a second elastic element 342, a wedge block 343, and a clamping rod 344. A lateral movement sleeve 341 is fitted onto the distal end of the adjusting rod 334. The outer wall of the lateral movement sleeve 341 has a second flange 3411 and a mounting portion 3412, which may specifically be a strip-shaped groove. A spring, serving as the second elastic element 342, is fitted onto the adjusting rod 334 and presses against the second flange 3411 and the inner wall of the mounting frame 31, causing the lateral movement sleeve 341 to extend inwards towards the mounting frame 31 (…). Figure 6 The trend is to move from the center to the left.

[0034] A wedge block 343 is fixedly mounted on the upright plate 111, located below the movement trajectory of the adjusting rod 334. Its inclined surface faces the adjusting rod 334. The wedge block 343 can be fixedly mounted by connecting it with a connector having transverse and longitudinal grooves, thereby allowing adjustment of the transverse and longitudinal positions of the wedge block 343. One end of a clamping rod 344 is detachably fixed to the flange 3411 via a connector, while its other end always remains in contact with the inclined surface of the wedge block 343. A guide groove 3431 can be formed on the inclined surface of the wedge block 343. The end of the clamping rod 344 slides into the guide groove 3431, ensuring smoother and more precise contact and transmission.

[0035] The adjusting rod 334 has an axially oriented elongated guide slot 3342, the length of which is greater than the length of the friction element. A mounting bar 321 is fixed to the friction element 32, passing through the guide slot 3342 and detachably connected to the mounting portion 3412 on the transverse sleeve 341, for example, by bolts, so that the friction element 32 can move in conjunction with the transverse sleeve 341 and can move laterally within the range defined by the guide slot 3342.

[0036] The friction component 32 can be designed as a separate component, including a fixing plate 3201 and a friction plate 3202 that are detachably connected by screws. The fixing plate 3201 passes through the guide slot 3342, and the mounting bar 321 is located at its top edge; the friction plate 3202 is a vulnerable component that comes into direct contact with the shoe body and can be replaced separately.

[0037] The working process of the transverse movement actuator 34: When the moving stage 12 drives the mounting frame 31, adjusting rod 334, and transverse sleeve 341 to move downward as a whole, the end of the clamping rod 344 slides along the inclined surface of the fixed inclined block 343. The inclined surface converts the vertical downward movement into a lateral thrust on the clamping rod 344. This thrust is transmitted through the clamping rod 344, pushing the transverse sleeve 341 to overcome the elastic force of the second elastic element 342 and slide along the axial direction of the adjusting rod 334 away from the mounting frame 31. The transverse sleeve 341 drives the friction element 32 to move laterally to one side along the guide slot 3342. When the moving stage 12 moves upward to reset, the transverse sleeve 341 slides towards the side closer to the mounting frame 31 under the restoring force of the second elastic element 342, driving the friction element 32 to move in the opposite direction, thereby completing one transverse reciprocating scraping motion accompanied by bending.

[0038] The functional principle of this application can be explained through the following methods: In the slipper hardness testing device of this application, when the drive mechanism 2 drives the moving stage 12 to reciprocate, the lower swing rod 15 and the upper swing rod 16 are linked together to drive the bending rod 14 to push the shoe body 100 upward, forming a bend towards the observation side, thereby completely exposing the bending area and realizing real-time visual monitoring of the bending process.

[0039] The equipment integrates a friction unit with a friction element 32 mounted on it. This friction element 32 is located on the back of the second clamping plate assembly 17 and has a curved working surface, allowing it to continuously contact the surface of the shoe body 100 during testing. To enhance testing functionality, the friction unit also integrates an angle adjustment element 33 and a lateral movement execution assembly 34. The various parts of the angle adjustment element 33 constitute a self-locking angle adjustment mechanism with press-to-unlock, rotation-to-adjust, and elastic-reset functions. The lateral movement execution assembly 34 includes a lateral movement sleeve 341, an elastic element 342, an inclined block 343 fixed to the upright plate 111, and a clamping rod 344. A guide slot 3342 is provided on the adjusting rod 334. The friction element 32 is connected to the mounting portion 3412 of the lateral movement sleeve 341 via a mounting bar 321. When the moving stage 12 moves, the clamping rod 344 slides along the inclined surface of the inclined block 343, driving the lateral movement sleeve 341 to slide axially against the elastic force of the elastic element 342, thereby causing the friction element 32 to reciprocate laterally along the guide slot 3342.

[0040] Therefore, by using a clamping layout and the lifting action of the bending rod 14, the damage process at the bending point is directly exposed to the observation side, solving the problem of blind spots in flat-lay testing. Utilizing a friction unit structure, under the drive of a single drive mechanism 2, bending fatigue testing and friction and wear simulation accompanying bending actions are simultaneously realized, making the test conditions more realistic. Furthermore, the angle adjustment component 33 provides precise friction angle adjustment and locking capabilities; the lateral reciprocating motion of the friction component 32 simulates the complex trajectory of actual friction. Designed specifically for the characteristics of polymer foam materials, the visualization and composite testing functions of the slipper hardness testing equipment in this application can effectively capture progressive damage such as the collapse of the internal cell structure and the generation of microcracks, providing a more reliable tool for product quality control and process optimization.

[0041] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0042] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A slipper hardness testing device, comprising a plurality of clamping mechanisms (1) for clamping the slipper body (100), characterized in that, The clamping mechanism (1) includes: The fixed base (11) is provided with parallel vertical plates (111); The movable clamping unit includes a moving stage (12) that moves up and down and a first clamping plate assembly (13) that is rotatably disposed on the moving stage (12). The bending execution unit includes a horizontally arranged bending rod (14), two lower swing rods (15) and two upper swing rods (16). The second clamping plate assembly (17) is rotatably disposed between the two upright plates (111); wherein, The bending rod (14) is located between the top of the moving platform (12) and the top of the upright plate (111); One end of each of the lower swing rods (15) is hinged to the end of the bent rod (14), and the other end is hinged to the upright plate (111) on the same side; One end of each of the upper swing rods (16) is hinged to the end of the bent rod (14), and the other end is hinged to the corresponding end of the moving platform (12); The first clamping plate assembly (13), the second clamping plate assembly (17), and the bending rod (14) are all arranged facing the same observation side of the equipment; The two ends of the shoe body (100) are respectively clamped by the first clamping plate assembly (13) and the second clamping plate assembly (17), and the bending rod (14) abuts against the inner side of the part of the shoe body (100) to be tested; The detection device also includes a drive mechanism (2) for driving the moving platform (12) to move up and down reciprocally. Through the linkage between the lower swing rod (15) and the upper swing rod (16), the bending rod (14) pushes the shoe body (100) to form a bend towards the observation side.

2. The slipper hardness testing device as described in claim 1, characterized in that, It also includes a friction unit, which comprises: The mounting frame (31) is fixedly connected to the mobile platform (12) and moves synchronously. Friction element (32) is mounted on the mounting frame (31) and located on the side of the second clamping plate assembly (17) away from the observation side, and the working surface of the friction element (32) is bent toward the second clamping plate assembly (17); during the reciprocating stroke of the moving stage (12), the working surface of the friction element (32) remains in contact with the surface of the shoe body (100) that is clamped at one end of the second clamping plate assembly (17).

3. The slipper hardness testing device as described in claim 2, characterized in that, The friction unit further includes: an angle adjustment component (33); The angle adjustment component (33) includes: A fixed short rod (331) is horizontally set and one end is fixed to the inner wall of one side of the mounting frame (31), and a positioning hole (3311) is opened at the free end of the fixed short rod (331). The movable toothed sleeve (332) is sleeved on the fixed short rod (331) and slides along the axis of the fixed short rod (331). The outer wall of the movable toothed sleeve (332) is provided with a flange (3321), and the end face of the movable toothed sleeve (332) away from the inner wall of the mounting frame (31) is provided with a tooth (3322). The elastic element (333) is sleeved on the fixed short rod (331) and presses against the inner wall between the flange (3321) and the mounting frame (31), so that the movable toothed sleeve (332) has a tendency to slide towards the outside of the mounting frame (31); The adjusting rod (334) has one end rotatably mounted on the inner wall of the other side of the mounting frame (31), and the other end is fixed with a pin (3341) inserted into the positioning hole (3311). A fixed toothed sleeve (335) is fixed to the end of the adjusting rod (334) near the fixed short rod (331). The end face of the fixed toothed sleeve (335) near the movable toothed sleeve (332) is provided with a second tooth (3351) that meshes with the first tooth (3322). The teeth at the end of the fixed toothed sleeve (335) mesh with the teeth at the end of the movable toothed sleeve (332); The movable toothed sleeve (332) has a pressing stroke in which the first tooth (3322) disengages from the second tooth (3351) and the adjusting rod (334) rotates freely about its own axis. The movable toothed sleeve (332) also has a locking position in which the first elastic element (333) forces the first tooth (3322) and the second tooth (3351) to engage with each other to fix the adjusting rod (334).

4. The slipper hardness testing device as described in claim 3, characterized in that, The friction unit also includes a transverse actuation component (34) for driving the friction element (32) to reciprocate laterally. The traverse execution component (34) includes: A transverse sleeve (341) is sleeved on the end of the adjusting rod (334) away from the fixed short rod (331). The outer wall of the transverse sleeve (341) is provided with a flange two (3411) and a mounting part (3412). Elastic element two (342); sleeved on the adjusting rod (334) and pressed against the inner wall between the flange two (3411) and the mounting frame (31), so that the transverse sleeve (341) has a tendency to move toward the inside of the mounting frame (31); An inclined block (343) is fixedly installed on the upright plate (111) and located below the movement trajectory of the adjusting rod (334). The inclined surface of the inclined block (343) is inclined towards the adjusting rod (334). The clamping rod (344) is clamped at one end to the flange two (3411), and at the other end, the inclined surface on the inclined block (343) remains in contact; wherein, The adjusting rod (334) has an elongated guide slot (3342) along its axis, and the friction element (32) passes through the slot (3342) and moves laterally within the slot (3342); A mounting bar (321) is fixed on the friction member (32), the mounting bar (321) passes through the guide slot (3342) and is detachably connected to the mounting part (3412) of the transverse sleeve (341).

5. The slipper hardness testing device as described in claim 4, characterized in that, The inclined surface of the inclined block (343) is provided with a guide groove (3431), and the end of the clamping rod (344) away from the flange (3411) is inserted into the guide groove (3431).

6. The slipper hardness testing device as described in claim 4, characterized in that, The friction element (32) includes a detachably connected fixing plate (3201) and a friction plate (3202), the fixing plate (3201) passing through the slot (3342), the mounting bar (321) being located at the edge of the fixing plate (3201), and the friction plate (3202) maintaining contact with the surface of the shoe body (100).

7. The slipper hardness testing device as described in claim 1, characterized in that, The drive mechanism (2) includes: The support plate (21) is vertically fixed to the fixed base (11); The slide rail (22) is fixed to the support plate (21); The slider (23) is fixed on the side wall of the moving platform (12) away from the first clamping plate assembly (13) and is slidably connected to the slide rail (22); A turntable (24) is rotatably mounted on the support plate (21); The connecting rod (25) is hinged at one end to the edge of the turntable (24) and at the other end to the slider (23); A drive motor (26) is mounted on the support plate (21) and is used to drive the turntable (24) to rotate.

8. The slipper hardness testing device as described in claim 1, characterized in that, The first clamping plate assembly (13) and the second clamping plate assembly (17) have the same structure, both including: A rotating clamp (201) is provided at both ends for rotatable mounting, and at least one pair of connecting bolts (2011) are fixed to the side of the rotating clamp (201) facing the observation side. The adjusting clamp (202) has a through hole corresponding to the connecting bolt (2011), and is pressed onto the rotating clamp (201) by the cooperation of the nut and the connecting bolt (2011) to jointly clamp the shoe body (100).

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