Vamp durability detection device

Abstract

The invention provides a vamp durability detection device, and belongs to the technical field of detection devices.The vamp durability detection device comprises a base, a shoe body and a controller installed on the side wall of the base and further comprises an adjusting and positioning assembly and a buffer detection assembly; according to the device, rapid switching between impact and stretching tests can be realized, and multiple tests from impact to stretching of the vamp can be automatically completed; through a multi-stage buffer system formed by the electromagnet II and the spring-buffer gas compression-hydraulic damping, the buffer strength can be flexibly adjusted according to different vamp material characteristics, and various vamp detection requirements can be met; when the anti-impact durability of the vamp is measured, the rod body is used for effectively protecting the force sensor, when the durability of the joint of the vamp and the sole is detected, the locking between the rod body and the positioning cavity is realized through the change of the oil pressure in the liquid storage cavity, and the locking between the rod body and the positioning cavity is realized through the contact between an arc-shaped sensing area on the surface of the force sensor and the inner wall of the top of the positioning cavity. The tension distribution condition can be uniformly captured, and the detection error is reduced.

Description

Technical Field

[0001] This invention relates to the field of testing device technology, and more specifically, to a device for testing the durability of shoe uppers. Background Technology

[0002] In the manufacturing and quality control processes of footwear products, upper durability is a key indicator for measuring product quality, profoundly impacting consumer experience and product market performance. In the past, the footwear industry has continued to expand, and consumer demand for footwear products has become increasingly diversified, with consumers not only pursuing novel styles but also demanding increasingly stringent requirements for quality and durability. Against this backdrop, the importance of upper durability testing has become increasingly prominent, and accurate and efficient testing has become a core element in ensuring the quality of footwear products.

[0003] Research revealed that most existing equipment has limited functionality, capable of performing only one test on the shoe upper. Impact and tensile tests require multiple independent devices, making the operation process extremely cumbersome and complex. Furthermore, the impact test cannot be tailored to shoe uppers of different materials and designs. For example, the upper materials and structures of ordinary canvas shoes and high-end outdoor hiking boots differ significantly. Traditional fixed-impact testing methods either fail to provide an effective impact test on the hiking boot upper or damage the canvas shoe upper due to excessive impact, leading to distorted test results and severely limiting the accurate assessment of shoe upper durability.

[0004] How to invent a shoe upper durability testing device to solve these problems has become an urgent issue for those skilled in the art. Summary of the Invention

[0005] To overcome the above deficiencies, the present invention provides a shoe upper durability testing device, which aims to solve the problems mentioned in the background.

[0006] This invention is implemented as follows: This invention provides a shoe upper durability testing device, including a base, a shoe body, and a controller mounted on the side wall of the base. The controller integrates a display screen and an alarm. The shoe body is composed of a sole and an upper. A support frame is fixedly mounted on the top of the base, and a transmission box is mounted on the top of the support frame. Two guide rods are symmetrically mounted between the base and the transmission box. A lifting seat and a connecting seat are slidably sleeved on the guide rods. The lifting seat and the connecting seat are connected by a connecting device. A winding device is provided inside the transmission box. A pull rope is connected to the output shaft of the winding device. An installation sleeve is mounted in the middle of the lifting seat. A sealing plate is fixedly mounted on the bottom of the installation sleeve. The lower end of the pull rope is connected to the top of the sealing plate. An impact block is mounted on the bottom of the connecting seat. The device also includes: Adjustment and positioning component: The adjustment and positioning component is disposed on the base; Buffer detection component: The buffer detection component is located inside the pull rope and adjustment positioning component.

[0007] Preferably, the adjustment and positioning component includes a positioning seat on the base, a sliding groove on the top of the base, and a foot mold placed inside the shoe body. A slider is fixedly connected to the bottom of the positioning seat, the slider is slidably connected to the sliding groove, a screw is rotatably engaged in the sliding groove, and the screw is threadedly connected to the slider. A positioning block for limiting the position of the shoe body is installed on the top of the positioning seat. A magnetic area is provided at the bottom of the foot mold, and an electromagnet is installed on the top of the positioning seat corresponding to the magnetic area.

[0008] Preferably, the electromagnet is electrically connected to the controller, and when the electromagnet is energized, the magnetism of the opposite side of the magnetic field is opposite to that of the magnetic field area. The bottom wall of the positioning seat abuts against the top of the base, and the impact block and the slide groove are on the same plane.

[0009] Preferably, the top of the base is fitted with a mounting shell that covers the top of the base, and a door is hinged to one side of the mounting shell. Two buffers are symmetrically installed on the base corresponding to the bottom of the connecting seat, and a shock-absorbing head is installed at the output end of the buffer.

[0010] Preferably, the connecting device includes a connector that is rotatably connected to the front side of the lifting seat and a positioning post that is fixedly connected to the front side of the connecting seat. When the bottom of the mounting sleeve abuts against the top of the connecting seat, the connector can engage with the positioning post, thereby realizing the connection between the lifting seat and the connecting seat.

[0011] Preferably, a mounting plate is fixedly installed on the top of the base. The mounting plate is located on the rear side of the connecting seat and there is a gap between the mounting plate and the connecting seat. A signal transmitter is installed on the rear side of the connecting seat corresponding to the mounting plate. A receiver is installed on the side wall of the mounting plate facing the signal transmitter. The signal transmitter, receiver, winding device and controller are electrically connected.

[0012] Preferably, the buffer detection assembly includes a positioning cavity inside the foot mold and a receiving cavity inside the impact block. The positioning cavity is located at the top of the foot mold, a sensor is installed at the bottom of the positioning cavity, an electromagnet is installed at the top of the receiving cavity, a wire is connected above the electromagnet, the end of the wire is electrically connected to a controller, a spring is fixedly connected to the bottom of the electromagnet, a piston magnet is fixedly connected to the lower end of the spring, a rod is fixedly connected to the lower end of the piston magnet, and the lower end of the rod penetrates the receiving cavity and the bottom wall of the impact block and extends to the outside of the impact block.

[0013] Preferably, the bottom of the piston magnetic block, the rod body, and the inner cavity of the receiving cavity form an oil storage chamber, which is filled with hydraulic oil. A fluid guiding channel is provided inside the rod body, and a trigger chamber is provided at the lower end of the fluid guiding channel. Several fluid guiding ports are provided in a ring on the rod body near the piston magnetic block, and the fluid guiding ports are connected to the fluid guiding channel. Two limiting magnetic plates are symmetrically installed inside the trigger chamber. A channel is provided in the middle of the limiting magnetic plate. A movable block is slidably engaged between the end of the trigger chamber and the corresponding limiting magnetic plate. A connecting magnetic plate is provided at one end of the movable block facing the limiting magnetic plate, and a force sensor is installed on the top of the movable block.

[0014] Preferably, the positioning cavity has a convex cross-section, the upper port of the positioning cavity penetrates the top of the foot mold, the piston magnetic block is slidably sealed to the receiving cavity, and the electromagnet two has the same magnetism on the opposite surface of the piston magnetic block when the electromagnet two is energized.

[0015] Preferably, the two movable blocks are symmetrically distributed around the central axis of the rod body, the magnetic properties between the opposite surfaces of the connecting magnetic plate and the adjacent limiting magnetic plate are opposite, the end of the movable block is located inside the outer ring of the rod body in the initial state, the force sensor is flush with the top of the movable block, the top of the force sensor is provided with an arc-shaped sensing area, and the distance between the outer end of the movable block and the central axis of the liquid guiding channel when the side wall of the connecting magnetic plate abuts against the end of the trigger cavity is greater than the inner diameter of the upper port of the positioning cavity.

[0016] The beneficial effects of this invention are: Traditional devices require multiple machines to perform impact and tensile tests on shoe uppers, involving numerous manual steps and resulting in low efficiency. This device enables rapid switching between impact and tensile testing, automatically completing multiple tests on shoe uppers from impact to tensile, saving significant time compared to traditional methods and reducing errors caused by manual operation, thus improving both testing efficiency and accuracy. The device uses electromagnetic adsorption combined with mechanical limiting to ensure precise positioning of the shoe body during testing, avoiding errors caused by displacement. A multi-stage buffering system composed of electromagnets, springs, compressed gas, and hydraulic damping can flexibly adjust the buffering force according to the characteristics of different shoe upper materials. This allows for effective impact testing of high-strength shoe uppers while preventing damage to low-strength shoe uppers from excessive impact, adapting to various shoe upper testing needs and ensuring testing stability and accuracy. Building upon the existing cushioning system, a tensile testing system has been added. When measuring the impact resistance durability of the shoe upper, the force sensor is housed within a rod, which provides effective protection. When testing the durability of the connection between the shoe upper and the sole, changes in the oil pressure inside the reservoir can control the extension of the movable block, achieving mechanical locking with the positioning cavity. Furthermore, during lifting and lowering, the contact between the arc-shaped sensing area on the surface of the force sensor and the inner wall of the top of the positioning cavity allows for the simultaneous and uniform capture of the tensile force distribution. This enables more comprehensive and accurate real-time detection of the applied tensile force, reducing detection errors and providing more reliable data support for the durability assessment of the shoe upper connection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the box door when it is opened according to the present invention; Figure 3 This is a schematic diagram of the structure during the detection process of this invention; Figure 4 This is a schematic diagram of the right-side cross-sectional structure during the detection process of this invention; Figure 5 This is the invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the signal transmitter structure of the present invention; Figure 7 This is a schematic diagram of the receiver structure of the present invention; Figure 8 This is a partial cross-sectional structural diagram of the electromagnet II of the present invention when it is not working; Figure 9 This is the invention Figure 8 Enlarged structural diagram at point B; Figure 10 This is a partial cross-sectional structural diagram of the electromagnet II of the present invention during operation; Figure 11 This is the invention Figure 10 Enlarged structural diagram at point C.

[0019] In the diagram: 1. Base; 2. Support frame; 3. Transmission box; 4. Mounting shell; 5. Guide rod; 6. Lifting seat; 7. Positioning seat; 8. Shoe body; 9. Receiving cavity; 10. Controller; 11. Slide rail; 41. Door; 51. Mounting plate; 60. Mounting sleeve; 61. Pull rope; 62. Connector; 63. Connecting seat; 64. Impact block; 70. Slider; 71. Buffer; 72. Positioning block; 73. Electromagnet 1; 81. Shoe sole; 82. Shoe upper; 83. Foot mold; 90. Oil storage cavity; 9 1. Electromagnet II; 92. Spring; 93. Piston Magnetic Block; 94. Rod; 95. Trigger Chamber; 96. Moving Block; 97. Force Sensor; 511. Receiver; 601. Sealing Plate; 631. Positioning Column; 632. Signal Transmitter; 701. Screw; 711. Shock Absorber; 831. Positioning Chamber; 832. Sensor; 833. Magnetic Zone; 911. Wire; 941. Liquid Channel; 942. Liquid Port; 951. Limiting Magnetic Plate; 952. Channel; 961. Connecting Magnetic Plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1, refer to Figures 1-9 A shoe upper durability testing device includes a base 1, a shoe body 8, and a controller 10 mounted on the side wall of the base 1. The controller 10 integrates a display screen and an alarm. The shoe body 8 is composed of a sole 81 and an upper 82. A support frame 2 is fixedly mounted on the top of the base 1, and a transmission box 3 is mounted on the top of the support frame 2. Two guide rods 5 are symmetrically mounted between the base 1 and the transmission box 3. A lifting seat 6 and a connecting seat 63 are slidably sleeved on the guide rods 5. The lifting seat 6 and the connecting seat 63 are connected by a connecting device. A winding device is provided inside the transmission box 3. A pull rope 61 is connected to the output shaft of the winding device. An installation sleeve 60 is installed in the middle of the lifting seat 6. A sealing plate 601 is fixedly mounted on the bottom of the installation sleeve 60. The lower end of the pull rope 61 is connected to the top of the sealing plate 601. An impact block 64 is installed at the bottom of the connecting seat 63. The winding device can control the lifting seat 6 and the connecting seat 63 to slide up and down on the guide rods 5 through the pull rope 61, thereby generating impact pressure or tension. The device also includes: Adjustment and positioning component: The adjustment and positioning component is set on the base 1 and is used to position the shoe body 8 and adjust its position; Cushioning Detection Component: The cushioning detection component is located inside the pull cord 61 and the adjustment positioning component. The cushioning detection component is used to detect the impact resistance durability of the upper 82 and the durability of the connection between the upper 82 and the sole 81. It provides data support for evaluating the impact resistance durability of the upper 82 and the durability of the connection between the upper 82 and the sole 81. At the same time, it can provide additional cushioning for the impact block 64 during the test, so as to prevent the upper 82 from being directly damaged by the instantaneous excessive impact force, which would affect the test results.

[0022] Furthermore, the adjustment and positioning assembly includes a positioning seat 7 on the base 1, a slide groove 11 on the top of the base 1, and a foot mold 83 placed inside the shoe body 8. A slider 70 is fixedly connected to the bottom of the positioning seat 7, and the slider 70 is slidably connected to the slide groove 11. A screw 701 is rotatably engaged in the slide groove 11, and the screw 701 is threadedly connected to the slider 70. When the screw 701 rotates, it can drive the positioning seat 7 to move along the slide groove 11, thereby adjusting the position of the shoe body 8. A positioning block 72 is installed on the top of the positioning seat 7 to limit the position of the shoe body 8. A magnetic area 833 is provided at the bottom of the foot mold 83, and an electromagnet 73 is installed on the top of the positioning seat 7 corresponding to the magnetic area 833.

[0023] Electromagnet 73 is electrically connected to controller 10. When electromagnet 73 is energized, its magnetic properties are opposite to those of the magnetic area 833. Through the positioning block 72 installed on the edge of the shoe body 8 and the attraction between the opposite magnetic areas of the bottom magnetic area 833 of the foot mold 83 and the top electromagnet 73 of the positioning seat 7, the shoe body 8 is ensured to be stable and without displacement during the test. The bottom wall of the positioning seat 7 abuts against the top of the base 1 to ensure that the positioning seat 7 moves smoothly. The impact block 64 and the slide 11 are on the same plane to ensure that the impact block 64 can act on the shoe body 8 fixed on the positioning seat 7.

[0024] Furthermore, a mounting shell 4 is installed on the top of the base 1 to shield the top of the base 1. A door 41 is hinged to one side of the mounting shell 4. During the testing process, the impact block 64 falls at high speed, posing a risk of component splashing or accidental contact by operators. The mounting shell 4 encloses the core moving parts, forming a physical barrier, which can effectively prevent injury to operators during the operation of the testing device and ensure personal safety. At the same time, the door 41 adopts a hinged design, which facilitates the placement of shoe body 8 samples and equipment debugging before testing, as well as the cleaning, maintenance and component replacement of the device after testing. This not only ensures safety but also improves the convenience of equipment use and maintenance efficiency. Two buffers 71 are symmetrically installed on the base 1 corresponding to the bottom of the connecting seat 63. The output end of the buffer 71 is equipped with a shock-absorbing head 711, which can initially meet the cushioning requirements of the impact block 64 after the impact test. When the impact test ends, the impact block 64 falls freely. If it directly collides with the base 1, Not only will it generate huge impact force and noise, but it may also damage components such as impact block 64 and base 1, affecting the service life and detection accuracy of the device. The elastic element and damping structure inside the buffer 71, together with the buffering effect of the shock absorber head 711, can effectively absorb the kinetic energy of the impact block 64 falling, reduce its impact force, reduce noise, protect key components of the equipment, and ensure long-term stable operation of the device. The connecting device includes a connector 62 that is rotatably connected to the front side of the lifting seat 6 and a positioning post 631 that is fixedly connected to the front side of the connecting seat 63. When the bottom of the mounting sleeve 60 abuts against the top of the connecting seat 63, the connector 62 can be engaged with the positioning post 631, thereby realizing the connection between the lifting seat 6 and the connecting seat 63. This allows the connecting seat 63 to move axially, applying a vertical impact force to the shoe upper 82 or applying a tensile force to the connection between the shoe sole 81 and the shoe upper 82. Through this setting, the connection between the connecting seat 63 and the lifting seat 6 can be easily disconnected, facilitating the maintenance of the detection system.

[0025] It should be noted that a mounting plate 51 is also fixedly installed on the top of the base 1. The mounting plate 51 is located behind the connecting seat 63 and there is a gap between the mounting plate 51 and the connecting seat 63 to avoid interference with the mounting plate 51 when the connecting seat 63 moves. A signal transmitter 632 is installed on the rear side of the connecting seat 63 corresponding to the mounting plate 51. A receiver 511 is installed on the side wall of the mounting plate 51 facing the signal transmitter 632. The signal transmitter 632, receiver 511, winding device and controller 10 are electrically connected. During the test, the signal transmitter 632 moves with the connecting seat 63 and continuously transmits signals to the receiver. 511 sends a signal, and receiver 511 captures the position information of connector 63 in real time and transmits the data to controller 10. Controller 10 controls the operation of the winding device according to preset test parameters and received displacement data, such as adjusting the winding speed and length of pull rope 61, so as to regulate the moving distance and speed of lifting seat 6 and connector 63. At the same time, if the displacement of connector 63 is abnormal, such as exceeding the preset range, controller 10 can immediately trigger an alarm and stop the operation of winding device to prevent equipment damage and test errors, and ensure the safety of the test process and the accuracy of the data.

[0026] Furthermore, the buffer detection assembly includes a positioning cavity 831 provided inside the foot mold 83 and a receiving cavity 9 opened inside the impact block 64. The positioning cavity 831 is located at the top of the foot mold 83, and a sensor 832 is installed at the bottom of the positioning cavity 831. An electromagnet 91 is installed at the top of the receiving cavity 9, and a wire 911 is connected above the electromagnet 91. The end of the wire 911 is electrically connected to the controller 10. A spring 92 is fixedly connected to the bottom of the electromagnet 91, and a piston magnet 93 is fixedly connected to the lower end of the spring 92. A rod 94 is fixedly connected to the lower end of the piston magnet 93. The lower end of the rod 94 penetrates the receiving cavity 9 and the bottom wall of the impact block 64 and extends to the outside of the impact block 64. The sensor 832 is used to sense the position of the rod 94 to ensure that the rod 94 can smoothly enter the positioning cavity 831 when detecting the durability of the connection between the sole 81 and the upper 82.

[0027] The bottom of the piston magnetic block 93, the rod body 94, and the inner cavity of the receiving cavity 9 form an oil storage cavity 90, which is filled with hydraulic oil. A fluid guiding channel 941 is provided inside the rod body 94, and a trigger cavity 95 is located at the lower end of the fluid guiding channel 941. Several fluid guiding ports 942 are annularly formed on the rod body 94 near the piston magnetic block 93, and these ports 942 are connected to the fluid guiding channel 941. The hydraulic oil filled in the oil storage cavity 90, together with the fluid guiding channel 941 and the fluid guiding ports 942 in the rod body 94, forms a hydraulic buffer system. When the piston magnetic block 93 moves, the hydraulic oil flows accordingly through the fluid guiding ports 942 and the fluid guiding channel 941. A sliding seal is maintained between the piston magnetic block 93 and the receiving cavity 9. To prevent hydraulic oil leakage, when electromagnet 2 91 is energized, the magnetic properties of the opposing surfaces of electromagnet 2 91 and piston magnetic block 93 are the same. By controlling the on / off state and current magnitude of electromagnet 2 91 through controller 10, the magnetic repulsion between electromagnet 2 91 and piston magnetic block 93 can be controlled, thereby changing the position and movement state of piston magnetic block 93, realizing the adjustment of the flow damping of hydraulic oil in oil reservoir 90, and ultimately achieving the purpose of controlling the magnitude of impact force of impact block 64. For shoe uppers 82 with different materials and strengths, different working parameters of electromagnet 2 91 can be preset in controller 10 to make impact block 64 generate appropriate impact force, which can effectively detect the performance of shoe upper 82 while avoiding excessive impact damage to the sample.

[0028] In this embodiment, the operator rotates the screw 701, which drives the slider 70 to move within the groove 11 via threaded transmission, causing the positioning seat 7 to move synchronously, ensuring that the test part of the shoe body 8 is aligned with the impact block 64. The foot mold 83 is then placed inside the shoe body 8. The controller 10 energizes the electromagnet 73, causing it to attract the magnetic area 833 at the bottom of the foot mold 83. At the same time, the positioning block 72 at the top of the positioning seat 7 is embedded in the groove on the edge of the shoe body 8, fixing the shoe body 8 from both magnetic attraction and mechanical limiting aspects to prevent displacement during the test. The operator sets test parameters, such as impact height, tensile speed, and electromagnet current intensity, through the display screen of the controller 10. When it is necessary to test the durability of the shoe upper 82, the position of the positioning seat 7 can be adjusted by the screw 701 so that the impact block 64 is directly above the shoe upper 82. The winding device is activated, and the lifting seat 6 and the connecting seat 63 are raised to the preset height by the pull rope 61. When it is necessary to conduct an impact test, the winding device releases the pull rope 61, and the impact block 64 falls freely under the action of gravity, applying a vertical impact force to the shoe upper 82. At the moment of impact, the rod 94 is obstructed when it contacts the shoe upper 82, and the piston magnetic block 93 moves upward under pressure. At this time, the spring 92 is compressed, and the elastic deformation of the spring 92 can absorb part of the impact energy, converting kinetic energy into elastic potential energy, sharing the pressure of the hydraulic buffer system, and preventing the hydraulic oil from being subjected to excessive impact force at the moment, which would cause the buffer to fail. At the same time, the space of the oil reservoir 90 increases, generating negative pressure. The hydraulic oil is drawn into the guide channel 941 through the guide port 942 and then flows back to the oil reservoir 90. The viscosity of the hydraulic oil and the channel resistance are used to consume the impact energy. At the same time, as the piston magnetic block... As 93 moves upward, the volume of gas at the top of the accommodating cavity 9 decreases. According to the ideal gas law, the gas pressure will increase. The increased pressure forms a reverse resistance, preventing the piston magnetic block 93 from moving upward further, thereby further consuming the impact energy. This gas buffer, together with the buffer of spring 92 and hydraulic buffer, forms a multi-level buffer system. When testing the thinner and lower strength shoe upper material 82, the gas compression buffer can provide resistance in the early stage of impact, together with spring 92 and hydraulic oil, to prevent the shoe upper 82 from being damaged due to excessive instantaneous impact force.

[0029] The controller 10 adjusts the current intensity of the electromagnet 2 91 according to preset parameters, thereby changing the repulsive force between it and the piston magnet 93. For example, when testing high-strength outdoor shoes, the current is increased to enhance the repulsive force on the piston, improve the hydraulic oil flow damping, and enhance the buffering effect; when testing lightweight sports shoes, the current is reduced to decrease the damping and avoid excessive buffering that could affect the test accuracy. By combining spring 92, gas compression, and hydraulic system, this testing device can flexibly adjust the cushioning force according to the characteristics of different shoe upper materials 82. While effectively testing the durability of shoe upper 82, it can protect the sample from excessive damage to the greatest extent and ensure the accuracy and repeatability of test results.

[0030] After the impact test, the impact block 64 falls freely. The buffer 71 on the base 1 and the shock absorber head 711 form a secondary buffer structure to absorb the remaining kinetic energy of the impact block 64 when it falls, protect the key components of the equipment, and extend the service life of the device. During the test, the mounting shell 4 encloses the high-speed moving parts to prevent the parts from splashing or the operator from accidentally contacting them when the impact block 64 falls at high speed. The hinged door 41 makes it convenient for the operator to put the shoe body 8, debug the equipment, and maintain the device. Example 2, refer to Figures 8-11 Two limiting magnetic plates 951 are symmetrically installed inside the trigger cavity 95. A channel 952 is opened in the middle of the limiting magnetic plate 951. A movable block 96 is slidably engaged between the end of the trigger cavity 95 and the corresponding limiting magnetic plate 951. A connecting magnetic plate 961 is provided at one end of the movable block 96 facing the limiting magnetic plate 951. A force sensor 97 is installed on the top of the movable block 96. When the rod 94 is subjected to external resistance, the movable block 96 will be stored inside the rod 94.

[0031] Furthermore, the positioning cavity 831 has a convex cross-section, and the upper port of the positioning cavity 831 penetrates the top of the foot mold 83, ensuring that the rod 94 can be smoothly inserted and, under certain circumstances, can be engaged with the positioning cavity 831.

[0032] It should be noted that the two movable blocks 96 are symmetrically distributed around the central axis of the rod body 94. The magnetic fields between the opposite faces of the connecting magnetic plate 961 and the adjacent limiting magnetic plate 951 are opposite. When the oil pressure in the trigger cavity 95 is low, under the magnetic force between the connecting magnetic plate 961 and the adjacent limiting magnetic plate 951, the connecting magnetic plate 961 and the adjacent limiting magnetic plate 951 are magnetically attracted and completely housed inside the trigger cavity 95 (in particular, due to the increased distance and the presence of hydraulic oil, the magnetic force between the connecting magnetic plate 961 and the other limiting magnetic plate 951 is negligible). In the initial state, the end of the movable block 96 is located on the outer ring of the rod body 94. Inside, the force sensor 97 is effectively protected by the rod 94 in the initial state. The force sensor 97 is flush with the top of the movable block 96. The top of the force sensor 97 is provided with an arc-shaped sensing area. When the movable block 96 extends outward, the force sensor 97 moves out at the same time. When it abuts against the upper port of the positioning cavity 831, the applied tension can be measured in real time. When the side wall of the connecting magnetic plate 961 abuts against the end of the trigger cavity 95, the distance between the outer end of the movable block 96 and the central axis of the liquid guiding channel 941 is greater than the inner diameter of the upper port of the positioning cavity 831, ensuring that when the movable block 96 extends, the rod 94 cannot easily detach from the positioning cavity 831.

[0033] In this embodiment, when testing the durability of the connection between the upper 82 and the sole 81, the screw 701 is rotated to align the rod 94 with the positioning cavity 831. At this time, the sensor 832 at the bottom of the positioning cavity 831 senses that the rod 94 has entered the preset position and transmits the signal to the controller 10, triggering an alarm to prompt the operator to stop the adjustment, ensuring that the rod 94 is accurately inserted and positioned.

[0034] When the end of rod 94 is inserted into positioning cavity 831, the energizing strength of electromagnet 91 is increased. Under the action of magnetic repulsion, piston magnetic block 93 drives rod 94 to move downward. At this time, the internal space of oil storage cavity 90 becomes smaller, and the pressure increases. The hydraulic oil with increased pressure enters the guide channel 941 through guide port 942, and then flows into trigger cavity 95. When the thrust of hydraulic oil is greater than the magnetic attraction between connecting magnetic plate 961 and limiting magnetic plate 951, movable block 96 overcomes the magnetic force and extends outward. Under the push of hydraulic oil, movable block 96 will overcome the magnetic attraction between connecting magnetic plate 961 and adjacent limiting magnetic plate 951 and extend outward. Also, because the side wall of connecting magnetic plate 961 abuts against the end of trigger cavity 95, the outer end of movable block 96... The distance between the central axis of the liquid guiding channel 941 and the inner diameter of the upper port of the positioning cavity 831 is greater than that of the inner diameter of the upper port of the positioning cavity 831. Therefore, when the movable block 96 extends, it will form a mechanical lock to prevent the rod 94 from coming out during the tensile test. At this time, the winding device pulls the pull rope 61, which drives the connecting seat 63 to move axially upward. The movement of the connecting seat 63 transmits the tensile force to the rod 94 through the impact block 64, thereby applying tensile force to the connection between the shoe upper 82 and the shoe sole 81. During this process, the signal transmitter 632 and the receiver 511 monitor the displacement data of the connecting seat 63 in real time and transmit the data to the controller 10. The controller 10 adjusts the rotation speed of the winding device according to the preset tension speed to ensure that the tensile force is applied at a stable rate and avoids the accuracy of the test results due to the fluctuation of the tensile force.

[0035] After the movable block 96 extends, as the rod 94 rises, the arc-shaped sensing area of ​​the force sensor 97 installed on its top fits tightly against the inner wall of the top of the positioning cavity 831. Since the two movable blocks 96 are symmetrically distributed on both sides of the rod 94, the force sensors 97 on both sides can simultaneously and evenly capture the tension distribution, enabling more comprehensive and accurate real-time detection of the applied tension, reducing detection errors. The force sensor 97 transmits the real-time collected tension signal to the controller 10, which combines the displacement data to dynamically monitor and adjust the tension test process.

[0036] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0037] It should be noted that the specific models and specifications of electromagnets, sensors, etc., need to be selected and determined based on the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, so they will not be described in detail here.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A shoe upper durability testing device, comprising a base (1), a shoe body (8), and a controller (10) mounted on the side wall of the base (1), wherein the controller (10) integrates a display screen and an alarm, the shoe body (8) is composed of a sole (81) and an upper (82), a support frame (2) is fixedly mounted on the top of the base (1), a transmission box (3) is mounted on the top of the support frame (2), and two guide rods (5) are symmetrically mounted between the base (1) and the transmission box (3), wherein a lifting device is slidably sleeved on the guide rods (5). The lifting seat (6) and the connecting seat (63) are connected by a connecting device. The transmission box (3) is equipped with a winding device. A pull rope (61) is connected to the output shaft of the winding device. An installation sleeve (60) is installed in the middle of the lifting seat (6). A sealing plate (601) is fixedly installed at the bottom of the installation sleeve (60). The lower end of the pull rope (61) is connected to the top of the sealing plate (601). An impact block (64) is installed at the bottom of the connecting seat (63). The characteristic of this structure is that... Also includes: Adjustment and positioning component: The adjustment and positioning component is disposed on the base (1); Buffer detection component: The buffer detection component is located inside the pull rope (61) and the adjustment positioning component.

2. The shoe upper durability testing device according to claim 1, characterized in that, The adjustment and positioning assembly includes a positioning seat (7) on the base (1), a slide groove (11) on the top of the base (1), and a foot mold (83) placed inside the shoe body (8). A slider (70) is fixedly connected to the bottom of the positioning seat (7). The slider (70) is slidably connected to the slide groove (11). A screw (701) is rotatably engaged in the slide groove (11). The screw (701) is threadedly connected to the slider (70). A positioning block (72) for limiting the position of the shoe body (8) is installed on the top of the positioning seat (7). A magnetic area (833) is provided at the bottom of the foot mold (83). An electromagnet (73) is installed on the top of the positioning seat (7) corresponding to the magnetic area (833).

3. The shoe upper durability testing device according to claim 2, characterized in that, The electromagnet (73) is electrically connected to the controller (10). When the electromagnet (73) is energized, its magnetism is opposite to that of the opposite side of the magnetic field (833). The bottom wall of the positioning seat (7) abuts against the top of the base (1). The impact block (64) and the slide groove (11) are on the same plane.

4. The shoe upper durability testing device according to claim 1, characterized in that, The top of the base (1) is fitted with a mounting shell (4) that covers the top of the base (1). A door (41) is hinged to one side of the mounting shell (4). Two buffers (71) are symmetrically installed on the base (1) at the bottom of the corresponding connecting seat (63). A shock absorber head (711) is installed at the output end of the buffer (71).

5. The shoe upper durability testing device according to claim 1, characterized in that, The connecting device includes a connector (62) rotatably connected to the front side of the lifting seat (6) and a positioning post (631) fixedly connected to the front side of the connecting seat (63). When the bottom of the mounting sleeve (60) abuts against the top of the connecting seat (63), the connector (62) can engage with the positioning post (631), thereby realizing the connection between the lifting seat (6) and the connecting seat (63).

6. The shoe upper durability testing device according to claim 1, characterized in that, A mounting plate (51) is also fixedly installed on the top of the base (1). The mounting plate (51) is located on the rear side of the connecting seat (63) and there is a gap between the mounting plate (51) and the connecting seat (63). A signal transmitter (632) is installed on the rear side of the connecting seat (63) corresponding to the mounting plate (51). A receiver (511) is installed on the side wall of the mounting plate (51) facing the signal transmitter (632). The signal transmitter (632), receiver (511), winding device and controller (10) are electrically connected.

7. The shoe upper durability testing device according to claim 1, characterized in that, The buffer detection assembly includes a positioning cavity (831) set inside the foot mold (83) and a receiving cavity (9) opened inside the impact block (64). The positioning cavity (831) is located at the top of the foot mold (83). A sensor (832) is installed at the bottom of the positioning cavity (831). An electromagnet (91) is installed at the top of the receiving cavity (9). A wire (911) is connected above the electromagnet (91). The end of the wire (911) is electrically connected to the controller (10). A spring (92) is fixedly connected to the bottom of the electromagnet (91). A piston magnet (93) is fixedly connected to the lower end of the spring (92). A rod (94) is fixedly connected to the lower end of the piston magnet (93). The lower end of the rod (94) penetrates the receiving cavity (9) and the bottom wall of the impact block (64) and extends to the outside of the impact block (64).

8. The shoe upper durability testing device according to claim 7, characterized in that, The bottom of the piston magnet (93), the rod (94), and the inner cavity of the receiving cavity (9) form an oil storage cavity (90), which is filled with hydraulic oil. A fluid guiding channel (941) is provided inside the rod (94), and a trigger cavity (95) is provided at the lower end of the fluid guiding channel (941). Several fluid guiding ports (942) are provided in a ring on the rod (94) near the piston magnet (93). The fluid guiding ports (942) and the fluid guiding channel (941) are connected. The trigger cavity (95) is connected to the trigger cavity (95). Two limiting magnetic plates (951) are symmetrically installed inside the trigger cavity (95). A channel (952) is opened in the middle of the limiting magnetic plate (951). A movable block (96) is slidably engaged between the end of the trigger cavity (95) and the corresponding limiting magnetic plate (951). A connecting magnetic plate (961) is provided at one end of the movable block (96) facing the limiting magnetic plate (951). A force sensor (97) is installed on the top of the movable block (96).

9. The shoe upper durability testing device according to claim 7, characterized in that, The positioning cavity (831) has a convex cross-section. The upper port of the positioning cavity (831) penetrates the top of the foot mold (83). The piston magnet (93) is slidably sealed to the receiving cavity (9). When the electromagnet (91) is energized, the magnetism of the opposite surfaces of the electromagnet (91) and the piston magnet (93) is the same.

10. The shoe upper durability testing device according to claim 8, characterized in that, The two movable blocks (96) are symmetrically distributed around the central axis of the rod (94). The magnetic fields between the opposite surfaces of the connecting magnetic plate (961) and the adjacent limiting magnetic plate (951) are opposite. In the initial state, the end of the movable block (96) is located inside the outer ring of the rod (94). The force sensor (97) is flush with the top of the movable block (96). The top of the force sensor (97) is provided with an arc-shaped sensing area. When the side wall of the connecting magnetic plate (961) abuts against the end of the trigger cavity (95), the distance between the outer end of the movable block (96) and the central axis of the liquid guiding channel (941) is greater than the inner diameter of the upper port of the positioning cavity (831).

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