Sock elastic performance automatic test system

Abstract

The utility model relates to a sock elasticity performance automatic test system, which comprises an upper computer, a communication unit, a control unit, a driving unit, an elasticity performance test unit, a detection unit and a power supply unit, and is characterized in that the upper computer is connected with a touch screen, the communication unit realizes data interaction between the upper computer and the control unit, the control unit is connected with the driving unit, and the detection unit is connected with the power supply unit. The driving unit is connected with the elastic performance testing unit, the elastic performance testing unit comprises a motor and a pressure sensor, different elastic deformation is generated through the action of the motor on socks, the moving position of the motor is detected by the detection unit, and the pressure sensor detects the elastic force of the socks during elastic deformation; and the detection unit and the elastic performance test unit are respectively connected with the control unit. According to the system, the elasticity performance testing unit is automatically controlled through the control unit, so that more accurate elasticity testing is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of elasticity performance test, especially a sock elasticity performance automatic test system. BACKGROUND

[0002] Sock elasticity test is an important link to evaluate sock quality and durability. It can be usually checked visually to observe the appearance of silk socks. If the silk socks look tight and have no obvious slackness or wrinkles, they are likely to have good elasticity. Secondly, it can also be touched by hand feeling. A small part of silk socks is gently stretched by hand to feel their rebound force and elasticity. High-quality silk socks can stretch to a certain extent and quickly recover to the original state after being released.

[0003] In order to quantify the elasticity of socks, a professional elasticity tester can be used to measure the stretching length and rebound force of socks by setting specific stretching conditions (such as stretching speed, stretching force, etc.), so as to evaluate the elasticity performance. This method is usually used for more accurate and objective testing. The tester manually stretches the socks to reach the set conditions. Since different testers have different experiences, the variability of stretching operation is large, so it is difficult to improve the accuracy of testing.

[0004] Especially for medical elastic socks, gradient pressure test is needed, that is, to measure the compression pressure of socks at different parts to ensure that they meet medical standards (such as 20-30mmHg, 30-40mmHg, etc.). At this time, the accurate distribution of gradient pressure is crucial for effective treatment. This part is obviously difficult for operators to control accurately.

[0005] The utility model discloses a medical sock elasticity testing device, including: base, the inside of base is provided with drive cavity, the number of drive cavity is four, and four drive cavity evenly distributes in the four of base, be provided with drive mechanism in the inside of drive cavity, be provided with drive seat on drive mechanism and move, the top of drive seat passes through the base and is provided with the profiling sleeve, the middle part of base is rotatably arranged with guide rod, the bottom of guide rod passes through the base and is fixedly sleeved with fixed ring, the fixed ring is fixedly installed with pressure sensor, the top of pressure sensor is overlapped with sliding pressure ring, the surface of guide rod is provided with sliding slot, the inner wall of sliding slot is slidably provided with force measuring mechanism.In using elasticity testing device, first according to the condition of patient, the profiling sleeve 4 of fitting the patient leg shape is sleeved on the top of drive seat 2, then through drive mechanism 3 control drive seat 2's position, make the size between four profiling sleeves 4 can simulate the thickness of patient leg, again, medical sock is sleeved on profiling sleeve 4, push the bottom of force measuring mechanism 6, make force measuring mechanism 6 can protrude in medical sock, then the elasticity condition of each place in medical sock is fed back using sliding pressure ring 9 and pressure sensor 8, it can be seen that, need multiple steps manual operation in testing, and the variability space of operation is big, is not favorable to improve the accuracy of measurement. Utility model content

[0006] In view of the above problems, the utility model provides a kind of automatic test system of sock elasticity, sends instruction to control unit by touch screen, controls drive unit, elasticity performance test unit and detection unit cooperate, realizes the automatic test of sock elasticity, and test result is accurate.

[0007] To solve this technical problem, the utility model takes the following scheme:

[0008] An automatic test system of sock elasticity performance, including host computer, communication unit, control unit, drive unit, elasticity performance test unit, detection unit and power unit, wherein, the host computer is connected with touch screen, the communication unit realizes the data interaction between the host computer and the control unit, the control unit is connected with the drive unit, the drive unit is connected with the elasticity performance test unit, the elasticity performance test unit includes motor and pressure sensor, different elastic deformation is generated by the motor acting on sock, the moving position of the motor is detected by the detection unit, the pressure sensor detects the elasticity when sock elastic deformation, the detection unit and the elasticity performance test unit are connected with the control unit respectively, and the power unit is used to power the system.

[0009] Further, the power supply comprises a switching power supply which converts 220V AC into 24V DC and 5V DC, wherein the 24V DC output is connected to the driving unit and the touch screen, and the 5V DC output is connected to the control unit.

[0010] Further, the interface of the communication unit is an RS232 interface.

[0011] Further, the processor of the control unit is an STM32F103VBT microprocessor.

[0012] Further, the chip of the driving unit is a THB7128 driving chip.

[0013] Further, the motor is a 42-step motor or a 57-step motor.

[0014] Further, the detection unit comprises an EE-SX672 photoelectric sensor.

[0015] Further, the elastic performance testing unit comprises an elastic sock testing instrument, the elastic sock testing instrument comprises upper and lower bearing seats arranged in parallel, a support rod is fixedly connected between the upper and lower bearing seats, a lead screw is movably connected to the upper and lower bearing seats, an upper lead screw nut is arranged at the end of the lead screw close to the upper bearing seat, the upper lead screw nut is fixedly connected to a plurality of upper hinges, a lower lead screw nut is arranged at the end of the lead screw close to the lower bearing seat, the lower lead screw nut is fixedly connected to a plurality of lower hinges, and the screw threads of the upper and lower lead screw nuts are opposite in direction.

[0016] A plurality of pressure sensors are arranged in the circumferential direction of the lead screw, the pressure sensing side of the pressure sensor is fixedly connected to a support plate, and the other side of the pressure sensor opposite to the support plate is fixedly connected to a first hinge and a second hinge respectively, wherein the first hinge is connected to the upper hinge through an upper support rod, and the second hinge is connected to the lower hinge through a lower support rod.

[0017] The free end of the lead screw penetrating through the lower bearing seat is connected to a motor through a shaft coupling, the lower bearing seat is fixedly connected to a connecting seat, the lead screw is driven to rotate by the motor, so that the upper and lower lead screw nuts move towards each other or move away from each other, and the support plate group forms a sock supporting sleeve which is opened or tightened to change the stress state of the tested sock.

[0018] By adopting the foregoing technical scheme, compared with the prior art, the elastic performance testing unit generates different elastic deformations of the sock by the motor, and the pressure sensor detects the elastic force of the elastic deformation of the sock, so that compared with manual control, gradient control with better precision can be realized.

[0019] Further, the system preferably comprises a 42-step motor or a 57-step motor, the stepping angle is small, and the precision requirement of the elasticity test can be well met. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure schematic diagram of a sock elasticity performance automatic test system provided by the embodiment 1 of the utility model;

[0021] Figure 2 is a structure schematic diagram of a elasticity sock tester provided by the embodiment 2 of the utility model. DETAILED DESCRIPTION

[0022] The technical solutions of the utility model will be described clearly and completely in combination with the drawings and specific embodiments, but the person skilled in the art will understand that the following described embodiments are part of the embodiments of the utility model, instead of all the embodiments, and are only used for illustrating the utility model, and should not be regarded as limiting the scope of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model. The specific conditions not noted in the embodiments are carried out according to the conventional conditions or the conditions suggested by the manufacturer. The reagents or instruments not noted by the manufacturer are all conventional products that can be obtained by market purchase.

[0023] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the device or element indicated or implied to have a particular orientation, to be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected, can be mechanically connected, or can be electrically connected, can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Embodiment 1:

[0026] Reference Figure 1The application discloses an automatic testing system for sock elasticity performance, which comprises an upper computer 100, a communication unit 20, a control unit 30, a driving unit 40, an elasticity performance testing unit 50, a detection unit 60 and a power supply unit 70, wherein the upper computer 100 is connected with a touch screen 80, the communication unit 20 realizes data interaction between the upper computer 100 and the control unit 30, the control unit 30 is connected with the driving unit 40, the driving unit 40 is connected with the elasticity performance testing unit 50, the elasticity performance testing unit 50 comprises a motor 16 and a pressure sensor 13, different elastic deformations are generated by the motor 16 acting on socks, the moving position of the motor 16 is detected by the detection unit 60, the pressure sensor 13 detects the elasticity when the socks are elastically deformed, the detection unit 60 and the elasticity performance testing unit 50 are connected with the control unit 30 respectively, and the power supply unit 70 is used for power supply of the system.

[0027] Specifically, the power supply unit 70 adopts AC 220V / 50Hz mains, and then converts the mains into DC 24V and DC 5V through a switching power supply. The DC 24V is mainly used for power supply of a driving system, a relay and the touch screen and the like, and the load power is about 250W. The DC 5V is mainly used for power supply of a control system part, including a control board, a sensor and the like, and the load power is about 10W. Therefore, the total power of the power supply is about 260W.

[0028] The communication interface between the touch screen 80 and the control unit 30 is an RS232 interface, a communication protocol is a Modbus protocol, and there is data interaction processing. The touch screen 80 is mainly used for man-machine interaction, reads out data to be displayed from a main control board, displays the data on an operation interface, and transmits data to be controlled on the operation interface to the control unit 30, so that the control unit 30 performs corresponding control.

[0029] The main control unit of the control unit 30 receives the interaction command of the touch screen 80, then sends a control signal to the driving unit 40, the driving unit 40 drives the motor 16 to start running, the moving position of the motor 16 is detected by the detection unit 60, the detection unit 60 transmits the position information of the motor 16 to the control unit 30, and the control unit 30 judges and decides the running position of the motor 16.

[0030] The control unit 30 adopts a microprocessor STM32F103VBT as a core, which is SRAM with a size of 20KB, Flash with a size of 64KB and a running clock of 72MHz, and is integrated with a driving interface of the motor 16, an input interface of the pressure sensor 13 and a relay driving interface, and a high-speed and convenient interrupt control interface, so that the control unit 30 can well meet the functions of signal transmission, data processing and data communication and the like involved in development.

[0031] The driving unit 40 is designed by THB7128 driving chip, which not only has the motor speed regulation function of current subdivision, but also can reduce power consumption according to the power position selection of different motor power. After a long time of testing and using, the performance is stable and reliable, which can meet the design requirements.

[0032] Considering the cost and the weight of the mechanism, the motor 16 is selected as a stepping motor, which has two types of 42 stepping motors and 57 stepping motors. The embodiment adopts a 57 stepping motor with a minimum stepping angle of 0.0140625°, which can well meet the accuracy requirements.

[0033] The detection unit 60 adopts EE-SX672 chip with 1Khz response speed, that is, it can respond within 1ms, and the power supply voltage range is very wide, from 5V to 24V, which can well meet the design requirements.

[0034] Embodiment 2:

[0035] Reference Figure 2 The embodiment describes the specific structure of the elastic performance test unit based on the embodiment 1, including the upper bearing seat 1 and the lower bearing seat 3 arranged relatively in parallel, the support rod 2 fixedly connected between the upper bearing seat 1 and the lower bearing seat 3, and the screw rod 7 movably connected with the upper bearing seat 1 and the lower bearing seat 3. In order to improve the stability of the device, the two support rods 2 arranged relatively are connected between the upper bearing seat 1 and the lower bearing seat 3.

[0036] The lower bearing seat 3 is fixedly connected with the connecting seat 4 below the lower bearing seat 3, the connecting seat 4 is a hollow cone, and the cone cavity is provided with a motor connecting seat 6 for fixing the motor 16. The motor connecting seat 6 is provided with a shaft coupling 5 at the top, one end of the shaft coupling 5 is connected with the output shaft of the motor 16, and the other end is connected with the screw rod 7.

[0037] The end of the screw rod 7 close to the upper bearing seat 1 is provided with an upper screw rod nut 8, the upper screw rod nut 8 is fixedly connected with a plurality of upper hinges 9, the end of the screw rod 7 close to the lower bearing seat 3 is provided with a lower screw rod nut 15, the lower screw rod nut 15 is fixedly connected with a plurality of lower hinges 10, and the screw thread directions of the upper screw rod nut 8 and the lower screw rod nut 15 are opposite. The free end of the screw rod 7 penetrating through the lower bearing seat 3 is connected with the shaft coupling 5.

[0038] Six cylindrical pressure sensors 13 are symmetrically arranged along the circumference of the screw rod 7, and the pressure sensing side of each pressure sensor 13 is fixedly connected with a rectangular support plate 14, the center axis of the support plate 14 and the pressure sensor 13 coincide, so that the pressure sensor 13 can accurately adopt the pressure value on the support plate 14.

[0039] The other side of the pressure sensor 13 opposite to the support plate 14 is fixedly connected with the first hinge 11 and the second hinge 17 respectively, wherein the first hinge 11 is connected with the upper hinge 9 through an upper support rod 18, and the second hinge 17 is connected with the lower hinge 10 through a lower support rod 19, so as to realize the opening and tightening of the support plate 14.

[0040] The connecting base 4 below the lower bearing seat 3 is provided with a motor 16, the motor 16 drives the screw rod 7 to rotate, so as to drive the upper screw rod nut 8 and the lower screw rod nut 15 to move oppositely or reversely, and the support plate 14 is opened or tightened to change the stress state of the tested socks.

[0041] It should be noted that the elastic performance testing unit is not limited to the above structure, as long as the elastic performance testing unit comprises a motor and a pressure sensor, the motor is used to generate different elastic deformations on the socks, the pressure sensor is used to detect the elastic force of the elastic deformation of the socks, and the moving position of the motor can be detected by the detection unit, and then the data is transmitted to the control unit to control the movement of the motor.

[0042] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as the limitation of the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments without departing from the principles and purposes of the utility model in the range of the utility model.

Claims

1. An automatic system for testing the elastic properties of hosiery, characterized in that it comprises: The system comprises a host computer, a communication unit, a control unit, a driving unit, an elastic performance testing unit, a detection unit and a power supply unit, wherein the host computer is connected with a touch screen, the communication unit realizes data interaction between the host computer and the control unit, the control unit is connected with the driving unit, the driving unit is connected with the elastic performance testing unit, the elastic performance testing unit comprises a motor and a pressure sensor, the motor is used to generate different elastic deformation of the socks, the moving position of the motor is detected by the detection unit, the pressure sensor is used to detect the elastic force of the socks during elastic deformation, the detection unit and the elastic performance testing unit are connected with the control unit respectively, and the power supply unit is used to supply power to the system.

2. The automatic hosiery stretch performance testing system according to claim 1, wherein: The power supply comprises a switching power supply which converts 220V AC into 24V DC and 5V DC, wherein the 24V DC output end is connected with the driving unit and the touch screen, and the 5V DC output end is connected with the control unit.

3. The automatic hosiery stretch performance testing system of claim 1, wherein: The interface of the communication unit is an RS232 interface.

4. The automatic hosiery stretch property testing system according to claim 3, wherein: The processor of the control unit is an STM32F103VBT microprocessor.

5. The automatic hosiery stretch property testing system according to claim 1, wherein: The chip of the driving unit is a THB7128 driving chip.

6. The automatic hosiery elasticity performance testing system according to claim 5, characterized in that: The motor is a 42-step motor or a 57-step motor.

7. The automatic hosiery stretch property testing system according to claim 1, wherein: The detection unit comprises an EE-SX672 photoelectric sensor.

8. The system of any one of claims 1-7, wherein: The elastic performance testing unit comprises an elastic sock tester, the elastic sock tester comprises upper and lower bearing seats arranged in parallel, a support rod is fixedly connected between the upper and lower bearing seats, a lead screw is movably connected with the upper and lower bearing seats, an upper lead screw nut is arranged at the end of the lead screw close to the upper bearing seat, the upper lead screw nut is fixedly connected with a plurality of upper hinges, a lower lead screw nut is arranged at the end of the lead screw close to the lower bearing seat, the lower lead screw nut is fixedly connected with a plurality of lower hinges, and the screw threads of the upper and lower lead screw nuts are opposite in direction. A plurality of pressure sensors are arranged in the circumferential direction of the lead screw, the pressure sensing side of the pressure sensor is fixedly connected with a support plate, the other side of the pressure sensor opposite to the support plate is fixedly connected with a first hinge and a second hinge respectively, the first hinge is connected with the upper hinge through an upper support rod, and the second hinge is connected with the lower hinge through a lower support rod. The free end of the lead screw penetrating through the lower bearing seat is connected with the motor through a coupling, the lower bearing seat is fixedly connected with a connecting seat, the lead screw is driven to rotate by the motor, so that the upper and lower lead screw nuts move towards each other or move away from each other, and the support plate forms a sock supporting sleeve which is opened or tightened to change the stress state of the tested socks.

Images