A glove abrasion resistance testing apparatus

Abstract

The utility model relates to glove detection technical field especially relates to a kind of glove wear resistance detection equipment.The equipment includes grinding device, image acquisition device, sample fixture and transfer device, wherein:grinding device includes the friction surface of having and the abrasive disc driving source that drives abrasive disc rotation or reciprocating translation;Image acquisition device is used to obtain the image of object located in its shooting range;Sample fixture is set to the power output end of transfer device and is used to fix the sample to be tested;Transfer device is configured to be able to drive sample fixture moves between the friction surface of abrasive disc and the shooting range of image acquisition device.The equipment has the following advantages: the image of sample is photographed using image acquisition device and the wear condition of sample is automatically identified according to the image, realizes the automation test of glove grinding;While abrasive disc moves, transfer device can also drive sample fixture to move, so that the relative moving friction speed of abrasive disc and sample is faster, and grinding efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of glove testing technology, and in particular to a glove abrasion resistance testing device. Background Technology

[0002] Work gloves are commonly used protective equipment in daily production and life. After the gloves are manufactured, they need to undergo a series of quality and performance tests, one of which is abrasion resistance. Currently, the abrasion resistance of gloves is tested by using a glove grinding machine to grind the finger area of ​​the glove. After grinding for a period of time, the wear of the glove is observed manually, and the abrasion resistance of the hand mold is judged based on the wear. Current glove grinding machines require manual observation of the glove's wear, and the grinding efficiency and automation level are generally low. Utility Model Content

[0003] The purpose of this invention is to provide a glove abrasion resistance testing device to solve the technical problems of low grinding efficiency and low automation in existing glove abrasion resistance testing equipment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A glove abrasion resistance testing device includes a grinding device, an image acquisition device, a sample clamp, and a transfer device, wherein: The grinding device includes a grinding disc with a friction surface and a grinding disc drive source that drives the grinding disc to rotate or reciprocate. The image acquisition device is used to acquire images of objects located within its shooting range; The sample clamp is located at the power output end of the transfer device and is used to fix the sample to be tested; The transfer device is configured to drive the sample holder between the friction surface of the grinding disc and the imaging range of the image acquisition device.

[0005] In some embodiments, the friction surface of the grinding disc is perpendicular to the horizontal plane, and a waste bin is provided below the friction surface; And / or, the grinding disc drive source is configured to drive the grinding disc to rotate about a horizontal line.

[0006] In some embodiments, the grinding disc and the image acquisition device are arranged sequentially along a first direction, and the transfer device includes a first linear motion module, which is configured to drive the sample holder to reciprocate along the first direction. And / or, the transfer device includes a second linear motion module configured to drive the sample holder to reciprocate along a second direction, the second direction being the direction in which the sample holder approaches or moves away from the friction surface of the grinding disc.

[0007] In some embodiments, the transfer device is a ball screw type electric cross slide, wherein the first direction and the second direction are orthogonal and both are parallel to the horizontal plane.

[0008] In some embodiments, the glove abrasion resistance testing equipment further includes a pressure regulating device connected between the sample clamp and the power output of the transfer device, configured to provide pressure to press the sample clamp against the friction surface of the grinding disc.

[0009] In some embodiments, the pressure regulating device includes a base, a counterweight placement component, and a counterweight, wherein: The base is disposed at the power output end of the transfer device, and the sample clamp is slidably disposed on the base along the second direction, which is the direction in which the sample clamp approaches or moves away from the friction surface of the grinding disc; The counterweight placement component is rotatably mounted on the base. The counterweight placement component has a force-applying part and a counterweight part located on both sides of its rotation center line. The force-applying part of the counterweight placement component abuts against the sample clamp. One or more counterweights can be placed on the counterweight part of the counterweight placement component. And / or, the counterweight placement component includes a rotating block and a screw, wherein: the rotating block includes a first bent section and a second bent section connected in an L-shape, and the corner position of the rotating block is rotatably mounted on the base via a rotating shaft; one end of the screw is fixed to the second bent section, and the counterweight is screwed to the screw.

[0010] In some embodiments, the pressure regulating device further includes a linear bearing, which is embedded in the base and fitted onto the sample clamp; And / or, the pressure regulating device further includes a limiting plate, which is fixed on the base and located on the rotational trajectory of the counterweight placement member relative to the base.

[0011] In some embodiments, the pressure regulating device includes a cylinder, the cylinder body of which is disposed at the power output end of the transfer device, and the piston rod end of the cylinder is connected to the sample clamp; Alternatively, the pressure regulating device includes a base and a spring, the base being disposed at the power output end of the transfer device, the sample clamp being slidably disposed on the base along a second direction, and the spring being connected between the sample clamp and the base and providing elastic force to drive the sample clamp toward the grinding disc along the second direction.

[0012] In some embodiments, the glove abrasion resistance testing device further includes a force measuring device, the detection surface of which is coplanar with the friction surface of the grinding disc, and the transfer device is further configured to drive the sample holder to move between the friction surface of the grinding disc and the detection surface of the force measuring device.

[0013] In some embodiments, the glove abrasion resistance testing equipment further includes a body, on which the grinding device, image acquisition device, sample fixture, and transfer device are all mounted.

[0014] In some embodiments, the glove abrasion resistance testing equipment further includes a control system, which includes an image recognition module and a logic controller. The control system is configured to control the image recognition module to recognize the image acquired by the image acquisition device, and to control the logic controller to determine the degree of abrasion of the sample based on the signal from the image recognition module in order to execute the corresponding control logic.

[0015] In some embodiments, the control system is further configured to: control the transfer device to move the sample holder between the grinding device and the image acquisition device according to the signal from the image recognition module, until the grinding degree of the sample reaches a preset grinding degree and then stops operating.

[0016] The beneficial effects of this utility model are: The glove abrasion resistance testing equipment provided by this utility model includes a grinding device, an image acquisition device, a sample holder, and a transfer device, wherein: the grinding device includes a grinding disc with a friction surface and a grinding disc drive source that drives the grinding disc to rotate or reciprocate; the image acquisition device is used to acquire images of objects located within its imaging range; the sample holder is set at the power output end of the transfer device and is used to fix the sample to be tested; the transfer device is configured to drive the sample holder to move between the friction surface of the grinding disc and the imaging range of the image acquisition device.

[0017] The glove abrasion resistance testing equipment provided in this application has the following advantages: (1) It uses an image acquisition device to capture images of the sample and automatically identifies the wear condition of the sample based on the images, eliminating the need for manual observation of the wear condition of the gloves, reducing the amount of manual work involved, and realizing automated testing of glove grinding; (2) During the grinding process, the grinding disc is driven by the grinding disc drive source to rotate in a circular motion or make reciprocating linear motion. At the same time, the transfer device can also drive the sample clamp to make reciprocating linear motion, which can improve the grinding efficiency and make the relative movement friction speed between the grinding disc and the sample faster and the grinding efficiency higher; (3) The equipment has automatic timing and / or counting functions, which facilitates data statistical analysis. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of the glove abrasion resistance testing device provided in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the back of the glove abrasion resistance testing device provided in Embodiment 1 of this utility model; Figure 3 A three-dimensional schematic diagram of the pressure regulating device provided in Embodiment 1 of this utility model; Figure 4 This is a cross-sectional view of the pressure regulating device provided in Embodiment 1 of this utility model; Figure 5 A cross-sectional view of the sample clamp provided in Embodiment 1 of this utility model; Figure 6 This is a cross-sectional view of the pressure regulating device provided in Embodiment 2 of this utility model; Figure 7 This is a top view of the grinding device, image acquisition device, and force measuring device provided in Embodiment 4 of this utility model.

[0020] icon: 1-The body; 2-Grinding device; 21-Grinding disc; 22-Grinding disc drive source; 23-Hollow rotary platform; 24-Motor mounting base; 3-Image acquisition device; 31-Camera; 32-Connecting plate; 4-Sample clamp; 41-Sample fixing head; 42-Sliding shaft; 43-Core block; 44-Pressure plate; 5-Transfer device; 51-First linear motion module; 52-Second linear motion module; 6-Waste bin; 7-Pressure regulating device; 71-Base; 711-Base; 712-Rotating bracket; 72-Counterweight placement piece; 721-Rotating block; 722-Screw; 73-Counterweight; 74-Linear bearing; 75-Limiting plate; 76-Rotating shaft; 77-Spring; 78-Adjusting screw; 8-Force measuring instrument; 91-Servo motor driver; 92-Logic controller. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] It should be noted that in the description of this utility model, the terms "connection" and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or a connection through an intermediate medium; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Example 1 To address the technical problem of low grinding efficiency and automation levels in current glove grinding equipment due to the need for manual observation of glove wear, this invention provides a glove abrasion resistance testing device, referring to... Figure 1 The device includes a grinding device 2, an image acquisition device 3, a sample holder 4, and a transfer device 5. The grinding device 2 includes a grinding disc 21 with a friction surface and a grinding disc drive source 22 that drives the grinding disc 21 to rotate or reciprocate. The image acquisition device 3 is used to acquire images of objects within its imaging range. The sample holder 4 is disposed at the power output end of the transfer device 5 and is used to fix the sample to be tested. The transfer device 5 is configured to drive the sample holder 4 to move between the friction surface of the grinding disc 21 and the imaging range of the image acquisition device 3.

[0025] Furthermore, the control system of the glove abrasion resistance testing equipment includes an image recognition module and a logic controller 92 (e.g., a PLC programmable logic controller). The control system is configured to control the image recognition module to recognize the image acquired by the image acquisition device 3, and to control the logic controller 92 to determine the degree of abrasion of the sample based on the signal from the image recognition module in order to execute the corresponding control logic. In some embodiments, the control system is also configured to: control the transfer device 5 to drive the sample holder 4 to move between the grinding device 2 and the image acquisition device 3 according to the signal from the image recognition module, until the degree of abrasion of the sample reaches a preset degree of abrasion and then stop operation.

[0026] Based on the core structure of the aforementioned equipment and the control logic of its control system, the working process of the equipment is as follows: First, the sample to be tested (the sample can be a complete glove or a finger of the glove) is fixed on the sample holder 4; then, the control system controls the transfer device 5 to move the sample holder 4 to the friction surface of the grinding disc 21, at which point a specific position of the glove on the sample holder 4 comes into contact with the friction surface of the grinding disc 21; subsequently, the control system controls the grinding disc drive source 22 to drive the grinding disc 21 to perform circular motion or frequent reciprocating translation, during which the grinding disc 21 grinds the specific position of the glove on the sample holder 4; after the grinding disc 21 has moved for a period of time (or the grinding disc 21 has rotated a certain number of times), the control system controls the transfer device 5 to move the sample holder 4 to the imaging range of the image acquisition device 3. The control system then controls the image acquisition device 3 to acquire an image of the glove on the sample holder 4 and uploads the image to the image recognition module of the control system. The image recognition module identifies the degree of wear on the glove based on the image and sends a signal to the logic controller 92 of the control system after recognition. The logic controller 92 selects different control logic based on the different signals sent by the image recognition module. If the signal sent by the image recognition module is "OK", it means that grinding needs to continue. At this time, the control system controls the transfer device 5 to move the sample holder 4 back to the friction surface against the grinding disc 21, and then controls the grinding disc 21 to move to continue grinding the glove. If the signal is "NG", it means that the glove has been worn to the required level, and the logic controller 92 will trigger an alarm such as a buzzer and indicator light to notify the operator that the current sample test is complete. Through the above process, the time taken for the sample to wear to a set level at a certain grinding frequency can be measured, thereby measuring the wear resistance of the sample.

[0027] The glove abrasion resistance testing equipment provided in this application has the following advantages: (1) The equipment stops grinding after a certain period of time or a certain number of grinding cycles. Then, the transfer device 5 moves the sample clamp 4 to the shooting range of the image acquisition device 3. The image acquisition device 3 takes an image of the sample and automatically identifies the wear condition of the sample based on the image. The equipment does not require manual observation of the wear condition of the gloves during operation, reducing the amount of manual work and realizing automated testing of glove grinding; (2) During the grinding process, the grinding disc drive source 22 drives the grinding disc 21 to rotate in a circle or to make reciprocating linear motion. At the same time, the transfer device 5 can also drive the sample clamp 4 to make reciprocating linear motion, which can improve the grinding efficiency and make the relative movement friction speed between the grinding disc 21 and the sample faster and the grinding efficiency higher; (3) The equipment has automatic timing (grinding time) and / or counting (number of rotations or reciprocating translations of the grinding disc 21 during the grinding process) functions, which facilitates data statistical analysis.

[0028] Continue to refer to Figure 1 The glove abrasion resistance testing equipment also includes a main body 1, with a grinding device 2, an image acquisition device 3, a sample clamp 4, and a transfer device 5 all mounted on the main body 1. The main body 1 can be a platform type, frame type, or box type, and its function is to integrate all components into one unit. In this embodiment, the main body 1 is specifically a box type structure, with the grinding device 2, image acquisition device 3, sample clamp 4, and transfer device 5 all installed inside the main body 1; this is to facilitate viewing the internal structure of the main body 1. Figure 1 The wall panels and surrounding frame of the main body 1 were removed, leaving only the bottom platform of the main body 1.

[0029] Reference Figure 2 In this embodiment, the grinding wheel drive source 22 is specifically a motor. A servo motor driver 91 for controlling the motor's start and stop is also installed on the machine body 1. The number of servo motor drivers 91 is adaptively adjusted according to the number of motors included in the device. Furthermore, a logic controller 92 is also installed on the machine body 1. The logic controller 92 controls the action sequence and process parameters of each component (each motor, image acquisition device 3, alarm, etc.) according to a pre-set program. These features result in a higher degree of integration and greater ease of use for the device.

[0030] Continue to refer to Figure 1In this embodiment, the friction surface of the grinding disc 21 is perpendicular to the horizontal plane, and a waste bin 6 is provided below the friction surface. This embodiment uses vertical grinding to grind the sample, which has the following advantages: First, vertical grinding is more conducive to the movement of the sample holder 4, making it easier for the image acquisition device 3 to acquire images of the sample; second, it is conducive to the removal of slag and chips, as the worn debris naturally falls into the waste bin 6 below the friction surface due to gravity, thereby reducing the workload of manual cleaning of debris; third, compared with the implementation where the friction surface of the grinding disc 21 is parallel to the horizontal plane and located above the sample holder 4 during grinding, this embodiment not only allows the worn debris to fall due to gravity, but also avoids the accumulation of fallen debris on the sample holder 4, which would affect the identification results of the sample wear condition.

[0031] In this embodiment, the grinding disc drive source 22 is configured to drive the grinding disc 21 to rotate around a horizontal line. Specifically, the grinding device 2 also includes a hollow rotating platform 23 and a motor mounting base 24. The motor mounting base 24 is fixedly mounted on the body 1, and the hollow rotating platform 23 is rotatably mounted on the motor mounting base 24, with the rotation axis of the hollow rotating platform 23 parallel to the horizontal plane. The grinding disc drive source 22 is specifically a motor, with its body fixedly mounted on the motor mounting base 24 and its output shaft connected to one end of the hollow rotating platform 23. The grinding disc 21 is fixedly mounted on the end of the hollow rotating platform 23 away from the grinding disc drive source 22. During the startup process of the grinding disc drive source 22, the grinding disc drive source 22 drives the grinding disc 21 to rotate through the hollow rotating platform 23, causing the grinding disc 21 to grind the glove sample.

[0032] In some other embodiments, the grinding disc drive source 22 can also be configured to drive the grinding disc 21 to reciprocate. Exemplarily, the grinding disc drive source 22 is a piston cylinder, specifically one of a pneumatic cylinder, hydraulic cylinder, or electric cylinder. The cylinder body of the grinding disc drive source 22 is fixedly mounted on the machine body 1. The piston rod end of the grinding disc drive source 22 is connected to the grinding disc 21. During extension and retraction, the piston rod of the grinding disc drive source 22 can drive the grinding disc 21 to reciprocate, thereby grinding the sample. Of course, the grinding disc drive source 22 can also be a motor. The output shaft of the grinding disc drive source 22 is connected to the grinding disc 21 through a transmission structure such as a gear rack, pinion, or ball screw, thus also achieving the effect of driving the grinding disc 21 to reciprocate.

[0033] In one alternative embodiment, the grinding disc 21 includes a sandpaper retaining disc and sandpaper fixed on the sandpaper retaining disc, with the rough surface of the sandpaper forming the friction surface of the grinding disc 21. Compared to a one-piece structure, the grinding disc 21 in this embodiment consists of a sandpaper retaining disc and sandpaper, allowing the sandpaper to be replaced after the friction surface of the grinding disc 21 has become severely worn.

[0034] In one optional embodiment, the grinding disc 21 and the image acquisition device 3 are arranged sequentially along a first direction. The transfer device 5 includes a first linear motion module 51, which is configured to drive the sample holder 4 to reciprocate along the first direction, thereby moving the sample holder 4 between the friction surface of the grinding disc 21 and the imaging range of the image acquisition device 3. Further, the first linear motion module 51 includes a first linear drive source, which can be a motor or a piston cylinder. When the first linear drive source is a motor, it is connected to the sample holder 4 through a transmission structure such as a gear rack, a ball screw, etc. When the first linear drive source is a piston cylinder, the piston rod of the first linear drive source extends and retracts along the first direction and is connected to the sample holder 4.

[0035] In one optional embodiment, the transfer device 5 includes a second linear motion module 52 configured to drive the sample holder 4 to reciprocate along a second direction, which is the direction in which the sample holder 4 approaches or moves away from the friction surface of the grinding disc 21 (the second direction is perpendicular to the friction surface of the grinding disc 21). When grinding of the sample is required, the second linear motion module 52 drives the sample holder 4 to approach and abut against the friction surface of the grinding disc 21. When moving the sample holder 4 is required, the second linear motion module 52 drives the sample holder 4 away from the friction surface of the grinding disc 21, causing the glove on the sample holder 4 to leave the friction surface of the grinding disc 21. Then, the first linear motion module 51 drives the sample holder 4 to translate, so as not to obstruct the sample holder 4 during movement. Furthermore, the second linear motion module 52 includes a second linear drive source, which can be a motor or a piston cylinder; when the second linear drive source is a motor, the second linear drive source is connected to the sample clamp 4 through a transmission structure such as a gear rack, a ball screw, etc.; when the second linear drive source is a piston cylinder, the piston rod of the second linear drive source extends and retracts in the second direction and is connected to the sample clamp 4.

[0036] In this embodiment, the transfer device 5 is a ball screw type electric cross slide, with the first direction and the second direction orthogonal and both parallel to the horizontal plane. Specifically, both the first linear drive source and the second linear drive source are motors. The first linear movement module 51 also includes a first mounting base and a first ball screw structure disposed on the first mounting base. The second linear movement module 52 also includes a second mounting base and a second ball screw structure disposed on the second mounting base. The first mounting base is fixedly mounted on the machine body 1, the main body of the first linear drive source is mounted on the first mounting base, and the output shaft of the first linear drive source is connected to the screw in the first ball screw structure. The second mounting base is fixedly connected to the nut in the first ball screw structure, the main body of the second linear drive source is mounted on the second mounting base, the output shaft of the second linear drive source is connected to the screw in the second ball screw structure, and the nut in the second ball screw structure is connected to the sample clamp 4. The screws in the first ball screw structure and the screws in the second ball screw structure are arranged in a cross pattern.

[0037] Furthermore, the image acquisition device 3 includes a camera 31. For example... Figure 1 As shown, in this embodiment, the camera 31 is mounted on one side of the motor mounting bracket 24 via a connecting plate 32. To make the images captured by the camera 31 clearer, a light source for illumination can also be provided around the camera 31.

[0038] Continue to refer to Figure 1 The glove abrasion resistance testing equipment also includes a pressure regulating device 7, which is connected between the sample clamp 4 and the power output end of the transfer device 5. The pressure regulating device 7 is configured to provide pressure that presses the sample clamp 4 against the friction surface of the grinding disc 21. During the grinding process, the pressure regulating device 7 ensures that a specific pressure is maintained between the sample clamp 4 and the grinding disc 21 throughout the grinding process.

[0039] Reference Figure 3 and Figure 4 In this embodiment, the pressure regulating device 7 includes a base 71, a counterweight placement component 72, and counterweights 73. The base 71 is located at the power output end of the transfer device 5 (specifically, it is fixed to the nut in the second ball screw structure). The sample clamp 4 is slidably mounted on the base 71 along the second direction. The counterweight placement component 72 is rotatably mounted on the base 71. The counterweight placement component 72 has a force-applying part and a counterweight part located on both sides of its rotation center line. The force-applying part of the counterweight placement component 72 abuts against the sample clamp 4, and a plurality of counterweights 73 are placed on the counterweight part of the counterweight placement component 72. In the above structure, the weight, number, and position of the counterweights 73 on the counterweight placement component 72 can be adjusted according to different grinding requirements to adjust the pressure applied to the sample clamp 4 by the pressure regulating device 7 to a suitable value.

[0040] In one optional embodiment, the base 71 includes a base 711 and a rotating bracket 712. The base 711 includes a horizontal plate and a vertical plate connected in an L-shape. The horizontal plate of the base 711 is fixedly connected to the power output end of the transfer device 5 by fasteners such as bolts. The sample clamp 4 is slidably disposed on the vertical plate of the base 71 along a second direction. The rotating bracket 712 is fixed to the horizontal plate of the base 71 by fasteners such as bolts. The counterweight placement component 72 is rotatably mounted on the rotating bracket 712 via a rotating shaft 76. In other embodiments, the base 711 and the rotating bracket 712 may also be connected by welding or integral machining.

[0041] In one alternative implementation, the counterweight 73 is a weight, which allows the operator to intuitively understand the weight of the counterweight 73, making the operation more convenient.

[0042] In one optional embodiment, the counterweight placement component 72 includes a rotating block 721 and a screw 722. The rotating block 721 includes a first bent section and a second bent section connected in an L-shape. The corner of the rotating block 721 is rotatably mounted on the base 71 via a rotating shaft 76. One end of the screw 722 is fixed to the second bent section by screwing, welding, or other means, and the counterweight 73 is screwed to the screw 722. The first bent section constitutes the force-applying part of the counterweight placement component 72, and the second bent section and the screw 722 together constitute the counterweight part of the counterweight placement component 72. Because the counterweight placement component 72 adopts the above structure, it can not only serve as a carrier for the counterweight 73, but also allow adjustment of the position of the counterweight 73 on the screw 722 by rotating it, thereby flexibly controlling the pressure applied to the sample clamp 4 by the pressure regulating device 7.

[0043] In an alternative embodiment, the pressure regulating device 7 further includes a linear bearing 74, which is mounted on the base 71 and fitted onto the sample holder 4. The linear bearing 74 allows the sample holder 4 to slide smoothly along the second direction on the base 71.

[0044] In one optional embodiment, the pressure regulating device 7 further includes a limiting plate 75, which is fixed to the base 71 and located on the rotation trajectory of the counterweight placement member 72 relative to the base 71. When the counterweight placement member 72 rotates to abut against the limiting plate 75, the limiting plate 75 prevents the counterweight placement member 72 from moving further, thereby controlling the rotation amplitude of the counterweight placement member 72 and preventing the sample clamp 4 from detaching from the linear bearing 74 due to excessive rotation angle. Furthermore, to further prevent the sample clamp 4 from detaching from the linear bearing 74, a nut, cotter pin, or shaft stop can be installed at the end of the sample clamp 4 near the counterweight placement member 72 to prevent detachment.

[0045] In one alternative implementation, refer to Figure 5 The sample fixture 4 includes a sample fixing head 41, a sliding shaft 42, a core block 43, and a pressure plate 44. The sample fixing head 41 is fixed to one end of the sliding shaft 42, and the other end of the sliding shaft 42 passes through the linear bearing 74 and abuts against the force-applying part of the counterweight placement component 72. The pressure plate 44 has a ring-shaped structure and is fitted onto the core block 43 and detachably fixed to the sample fixing head 41. The pressure plate 44 can be fixed to the sample fixing head 41 with bolts, or the sample fixing head 41 and the pressure plate 44 can be provided with matching internal and external threads to achieve a screw connection between the two. The process of fixing the glove using the sample clamp 4 is as follows: First, remove the core block 43 and the pressure plate 44 from the sample fixing head 41; then, wrap the glove around the core block 43; next, put the pressure plate 44 on the core block 43 wrapped with the glove and fix the pressure plate 44 on the sample fixing head 41. At this time, the pressure plate 44 presses the periphery of the core block 43 tightly onto the sample fixing head 41, thereby fixing the glove on the sample clamp 4.

[0046] In summary, the testing process of the glove abrasion resistance testing equipment provided in this embodiment is as follows: Step 1: Move the sample clamp 4 away from the grinding disc 21 using the second linear motion module 52, and then move the sample clamp 4 to one side of the grinding disc 21 using the first linear motion module 51. Step 2: Fix the sample to be tested onto the sample fixture 4; Step 3: Select a counterweight 73 of appropriate weight and screw it onto the screw 722 of the counterweight placement component 72. Tighten the counterweight 73 to the appropriate position on the screw 722. The counterweight placement component 72 rotates around the rotating shaft 76 under the action of gravity. The force-applying part of the counterweight placement component 72 abuts against the tail end of the sample clamp 4 and pushes the sample clamp 4 forward. At this time, a force gauge can be manually placed at the front end of the sample clamp 4, so that the detection surface of the force gauge is parallel to the friction surface of the grinding disc 21 and the distance between them is equal to the driving stroke of the second linear motion module 52. By checking the value on the force gauge, adjust the pushing force of the counterweight placement component 72 on the sample clamp 4 to an appropriate value. After adjustment, remove the force gauge. Step 4: The sample clamp 4 is moved to the friction surface facing the grinding disc 21 by the first linear motion module 51, and then the sample clamp 4 is moved to the friction surface of the grinding disc 21 by the second linear motion module 52. At this time, a specific position of the glove on the sample clamp 4 is in contact with the friction surface of the grinding disc 21. Step 5: The control system controls the grinding disc drive source 22 to drive the grinding disc 21 to make a circular motion. During the motion, the grinding disc 21 grinds a specific position of the glove on the sample holder 4. Note that when measuring pressure and grinding work is in progress, the rotating block 721 and the limiting plate 75 should not contact each other. It is advisable to keep a distance of about 2mm between them. Step Six: After the grinding disc 21 moves for a period of time (or the grinding disc 21 rotates a certain number of times), the first and second linear motion modules work together to move the sample fixture 4 into the shooting range of the image acquisition device 3. Then, the control system controls the image acquisition device 3 to acquire an image of the glove on the sample fixture 4 and uploads the image to the image recognition module of the control system. The image recognition module identifies the damaged area of ​​the glove based on the color and texture differences of different areas in the image and calculates the area of ​​the damaged area, thereby identifying the degree of wear of the glove. After the identification is completed, a signal is sent to the logic controller 92. The logic controller 92 selects different control logic according to different signals sent by the image recognition module. If the signal sent by the image recognition module is "OK", then return to step four; if the signal is "NG", the control system controls the alarm to work, prompting the operator that the current sample testing work has been completed.

[0047] Example 2 The only difference between this embodiment and Embodiment 1 is that the structure of the pressure regulating device 7 is different.

[0048] Reference Figure 6 In this embodiment, the pressure regulating device 7 includes a base 71 and a spring 77. The base 71 is disposed at the power output end of the transfer device 5. The sample clamp 4 is slidably disposed on the base 71 along the second direction. The spring 77 is connected between the sample clamp 4 and the base 71 and provides elastic force to drive the sample clamp 4 to approach the grinding disc 21 along the second direction. During the grinding process, the spring 77 maintains a specific pressure between the sample clamp 4 and the grinding disc 21 for grinding. This embodiment does not include a counterweight placement component 72, a counterweight 73, a limiting plate 75, or a rotating shaft 76.

[0049] Furthermore, combined Figure 5 and Figure 6 The pressure regulating device 7 also includes an adjusting screw 78 screwed onto the base 71. The threaded end of the adjusting screw 78 protrudes from the base 71 and faces the end of the sliding shaft 42 away from the sample fixing head 41. The spring 77 is specifically a compression spring, which is connected between the sliding shaft 42 and the adjusting screw 78. In the above structure, by adjusting the length of the threaded end of the adjusting screw 78 protruding from the base 71, the compression of the spring 77 can be adjusted, thereby adjusting the thrust applied by the spring 77 to the sample clamp 4.

[0050] Example 3 The only difference between this embodiment and embodiments one and two is that the structure of the pressure regulating device 7 is different.

[0051] In this embodiment, the pressure regulating device 7 includes a cylinder, the cylinder body of which is located at the power output end of the transfer device 5, and the piston rod end of the cylinder is connected to the sample clamp 4. During the grinding process, the cylinder maintains a specific pressure between the sample clamp 4 and the grinding disc 21 for grinding. This embodiment does not include a counterweight placement component 72, a counterweight 73, a limiting plate 75, or a rotating shaft 76.

[0052] Example 4 This embodiment is an extension based on any one of the embodiments one to three.

[0053] Reference Figure 7 In this embodiment, the glove abrasion resistance testing device further includes a force gauge 8, the detection surface of which is coplanar with the friction surface of the grinding disc 21. The transfer device 5 is also configured to drive the sample holder 4 to move between the friction surface of the grinding disc 21 and the detection surface of the force gauge 8. Specifically, the force gauge 8 and the image acquisition device 3 are respectively disposed on opposite sides of the grinding disc 21 along the first direction. Due to the adoption of the above technical solution, the first and second linear motion modules can cooperate to drive the sample holder 4 to move between the friction surface of the grinding disc 21 and the detection surface of the force gauge 8, and can also drive the sample holder 4 to move between the friction surface of the grinding disc 21 and the imaging range of the image acquisition device 3, thus realizing automatic pressure adjustment and testing processes. The remaining structure of this embodiment is the same as that of the above embodiment, and will not be repeated here.

[0054] The detection process in this embodiment differs from that in Embodiment 1 only in steps one and three; the remaining steps are the same. Step one in this embodiment is as follows: the sample clamp 4 is moved away from the grinding disc 21 via the second linear motion module 52, and then the sample clamp 4 is moved to the detection surface facing the force measuring device 8 via the first linear motion module 51, followed by step two. Step three in this embodiment is as follows: the sample clamp 4 with the glove fixed to it is moved to the detection surface of the force measuring device 8 via the second linear motion module 52, then a counterweight 73 of appropriate weight is screwed onto the screw 722. After the detection value of the force measuring device 8 reaches the set value, the sample clamp 4 is moved away from the detection surface of the force measuring device 8 via the second linear motion module 52, followed by step four.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A glove abrasion resistance testing device, characterized in that, It includes a grinding device (2), an image acquisition device (3), a sample holder (4), and a transfer device (5), wherein: The grinding device (2) includes a grinding disc (21) with a friction surface and a grinding disc drive source (22) that drives the grinding disc (21) to rotate or reciprocate. The image acquisition device (3) is used to acquire images of objects located within its shooting range; The sample clamp (4) is located at the power output end of the transfer device (5) and is used to fix the sample to be tested; The transfer device (5) is configured to drive the sample holder (4) to move between the friction surface of the grinding disc (21) and the imaging range of the image acquisition device (3).

2. The glove abrasion resistance testing equipment according to claim 1, characterized in that, The friction surface of the grinding disc (21) is perpendicular to the horizontal plane, and a waste bin (6) is provided below the friction surface. And / or, the grinding disc drive source (22) is configured to drive the grinding disc (21) to rotate about a horizontal line.

3. The glove abrasion resistance testing equipment according to claim 1, characterized in that, The grinding disc (21) and the image acquisition device (3) are arranged in sequence along the first direction. The transfer device (5) includes a first linear motion module (51), which is configured to drive the sample clamp (4) to reciprocate along the first direction. And / or, the transfer device (5) includes a second linear motion module (52) configured to drive the sample holder (4) to reciprocate along a second direction, the second direction being the direction in which the sample holder (4) approaches or moves away from the friction surface of the grinding disc (21).

4. The glove abrasion resistance testing equipment according to claim 3, characterized in that, The transfer device (5) is a ball screw type electric cross slide, and the first direction and the second direction are orthogonal and parallel to the horizontal plane.

5. The glove abrasion resistance testing equipment according to claim 1, characterized in that, It also includes a pressure regulating device (7) connected between the sample clamp (4) and the power output of the transfer device (5), which is configured to provide pressure to press the sample clamp (4) against the friction surface of the grinding disc (21).

6. The glove abrasion resistance testing equipment according to claim 5, characterized in that, The pressure regulating device (7) includes a base (71), a counterweight placement component (72), and a counterweight (73), wherein: The base (71) is disposed at the power output end of the transfer device (5), and the sample clamp (4) is slidably disposed on the base (71) along the second direction, which is the direction in which the sample clamp (4) approaches or moves away from the friction surface of the grinding disc (21). The counterweight placement component (72) is rotatably mounted on the base (71). The counterweight placement component (72) has a force-applying part and a counterweight part located on both sides of its rotation center line. The force-applying part of the counterweight placement component (72) abuts against the sample clamp (4). One or more counterweights (73) can be placed on the counterweight part of the counterweight placement component (72).

7. The glove abrasion resistance testing equipment according to claim 6, characterized in that, The pressure regulating device (7) also includes a linear bearing (74), which is embedded in the base (71) and mounted on the sample clamp (4); And / or, the pressure regulating device (7) further includes a limiting plate (75), the limiting plate (75) being fixed on the base (71), and the limiting plate (75) being located on the rotational trajectory of the counterweight placement member (72) relative to the base (71); And / or, the counterweight placement component (72) includes a rotating block (721) and a screw (722), wherein: the rotating block (721) includes a first bent section and a second bent section connected in an L-shape, and the corner position of the rotating block (721) is rotatably mounted on the base (71) via a rotating shaft (76); one end of the screw (722) is fixed on the second bent section, and the counterweight (73) is screwed to the screw (722).

8. The glove abrasion resistance testing equipment according to claim 5, characterized in that, The pressure regulating device (7) includes a cylinder, the cylinder body of which is located at the power output end of the transfer device (5), and the piston rod end of the cylinder is connected to the sample clamp (4). Alternatively, the pressure regulating device (7) includes a base (71) and a spring (77), the base (71) being disposed at the power output end of the transfer device (5), the sample clamp (4) being slidably disposed on the base (71) along the second direction, and the spring (77) being connected between the sample clamp (4) and the base (71) and providing elastic force to drive the sample clamp (4) to approach the grinding disc (21) along the second direction.

9. The glove abrasion resistance testing equipment according to claim 1, characterized in that, It also includes a force measuring device (8), the detection surface of which is coplanar with the friction surface of the grinding disc (21), and the transfer device (5) is further configured to drive the sample holder (4) to move between the friction surface of the grinding disc (21) and the detection surface of the force measuring device (8).

10. The glove abrasion resistance testing equipment according to claim 1, characterized in that, It also includes a body (1), on which the grinding device (2), image acquisition device (3), sample clamp (4) and transfer device (5) are all mounted.

11. The glove abrasion resistance testing equipment according to claim 1, characterized in that, It also includes a control system, which includes an image recognition module and a logic controller (92). The control system is configured to control the image recognition module to recognize the image acquired by the image acquisition device (3) and to control the logic controller (92) to determine the degree of grinding of the sample based on the signal from the image recognition module in order to execute the corresponding control logic.

12. The glove abrasion resistance testing equipment according to claim 11, characterized in that, The control system is also configured to: control the transfer device (5) to drive the sample clamp (4) to move between the grinding device (2) and the image acquisition device (3) according to the signal of the image recognition module, until the grinding degree of the sample reaches the preset grinding degree and then stop operating.

Images