Self-checking device for rapidly detecting size of wire rod

Abstract

The utility model relates to a wire rod detection device, in particular to a self-detection device for rapidly detecting the size of a wire rod. The device comprises a maximum value alarm, a size limit plate assembly and a loop plate. The size limit plate assembly comprises a maximum limit plate; the loop plate comprises a second plate body of which the middle part is provided with a second through hole, and a soft conductive probe; the maximum limit plate comprises a third plate body; a third through hole is formed in the middle of the third plate body, a second conductive strip is arranged on the wall surface of the third through hole to form a conductive hole, and the inner diameter of the conductive hole is equal to the maximum size limit value; the two electrodes of the external power supply are electrically connected with the second conductive strip and the soft conductive probe respectively, and the maximum value alarm is connected into the second conductive loop. The device is simple in structure, good in stability, cheap and easily available in parts, convenient to operate, capable of accurately and efficiently detecting and feeding back the size of the wire rod, capable of monitoring the size of the wire rod in real time, capable of giving an alarm in real time when the size of the wire rod is abnormal, capable of effectively improving the detection efficiency and capable of improving the product quality.

Description

Technical Field

[0001] This application relates to wire inspection devices, and more particularly to a self-inspection device for rapidly detecting wire dimensions. Background Technology

[0002] Wire refers to metal wire (such as tungsten wire and steel wire) that has undergone processes such as pressure processing, drawing, and annealing, and is ultimately delivered in coils. It can be used as raw material for products such as curtain wire and saw wire. During wire production, different requirements are generally applied depending on the intended use, including the physical dimensions of the wire, such as diameter.

[0003] There are currently methods on the market that involve manual inspection, such as sampling products and manually measuring the dimensions of wires at multiple points using calipers. However, manual measurement is prone to errors, and the sampling inspection range is too small, resulting in insufficient inspection accuracy and precision. In addition, it consumes a lot of manpower, is inefficient, and has poor timeliness in responding to production anomalies.

[0004] To avoid the aforementioned problems, automated equipment for wire dimension inspection has been proposed in the market. However, current production methods for controlling wire dimensions generally rely on photosensitive systems within machines for identification, which suffer from poor accuracy and inherent errors. Due to this inaccuracy, additional batch sampling inspections are required during production. The inspection results are significantly affected by equipment stability and operator skill, making it difficult to accurately identify whether abnormal product parameters meet standards. Furthermore, existing inspection machines, constructed from photosensitive systems and other components, are complex, difficult to maintain, and have expensive components.

[0005] For example, Chinese invention patent CN114166127B discloses a rib dimension measuring instrument designed using optical photosensitive principles, which can measure wire dimensions. However, such equipment is complex, difficult to maintain, and can easily affect equipment stability; moreover, its components are relatively expensive.

[0006] Therefore, how to develop a self-inspection device that can quickly detect, has a simple and stable structure, uses inexpensive and readily available components, is easy to operate, and improves detection accuracy and efficiency, and can monitor the dimensions of wires in real time, is a problem that those skilled in the art are committed to solving. Utility Model Content

[0007] To address the shortcomings of the prior art mentioned in the background section, this application provides a self-testing device for rapidly detecting wire dimensions, the technical solution of which is as follows:

[0008] The self-testing device for rapid detection of wire size provided in this application includes a maximum value alarm, a size limit plate assembly and a circuit plate arranged in sequence; the size limit plate assembly includes a maximum value plate; the circuit plate includes a second plate body with a second through hole in the middle and a soft conductive probe extending into the second through hole; the maximum value plate includes a third plate body; the third plate body has a third through hole in the middle for the wire to pass through, and a second conductive strip is provided on the wall of the third through hole to form a conductive hole, the inner diameter of the conductive hole being equal to the maximum size limit of the wire; the two poles of an external power supply are electrically connected to the second conductive strip and the soft conductive probe respectively; when the wire size reaches the maximum size limit, the wire contacts the second conductive strip to form an electrical connection, so that the second conductive strip, the wire, and the soft conductive probe are electrically connected to form a second conductive circuit; wherein, the maximum value alarm is connected to the second conductive circuit.

[0009] In one embodiment, a minimum value alarm is also included; the size limit plate assembly further includes a minimum value plate; the minimum value plate includes a fourth plate body; a fourth through hole is formed in the middle of the fourth plate body, and a plurality of flexible conductive elements are arranged around the fourth through hole; the first end of the flexible conductive element is connected to the wall of the fourth through hole, and its tail end points to the axis of the fourth through hole, so that when a wire with a size equal to the minimum size limit passes through the fourth through hole, the tail end of the flexible conductive element just contacts the wire; wherein, the two poles of the external power supply are electrically connected to the flexible conductive element and the flexible conductive probe respectively, and when the wire size is greater than or equal to the minimum size limit of the wire, the wire contacts the flexible conductive element to form an electrical connection, so that the flexible conductive element, the wire, and the flexible conductive probe are electrically connected to form a third conductive circuit; wherein, the minimum value alarm is connected to the third conductive circuit.

[0010] In one embodiment, the second through hole, the third through hole, and the fourth through hole are all circular holes, and the second through hole, the third through hole, and the fourth through hole are coaxial.

[0011] In one embodiment, a plurality of second conductive strips are arranged in a ring around the inner side of the third through hole; each of the second conductive strips is electrically connected to one of the stages of the external power supply to form a second conductive circuit, wherein the maximum value alarm is electrically connected to each of the second conductive circuits.

[0012] In one embodiment, the second conductive strip is embedded in the inner wall of the third through hole.

[0013] In one embodiment, each of the soft conductive elements is electrically connected to one of the stages of the external power supply to form a third conductive circuit, wherein each of the third conductive circuits is electrically connected to the minimum value alarm.

[0014] In one embodiment, a plurality of flexible conductive elements are arranged around the inner ring of the fourth through hole. The first ends of the plurality of flexible conductive elements are connected to the wall surface of the fourth through hole, and their tail ends extend radially along the fourth through hole and point towards the axis of the fourth through hole, so that the tail ends of the plurality of flexible conductive elements form a circle.

[0015] In one embodiment, a plurality of the soft conductive elements are arranged at equal angles in a ring within the fourth through hole.

[0016] In one embodiment, the circuit board further includes a second elastic connection structure; the second plate has an adjustable semi-hollow groove above the second through hole; the soft conductive probe is connected to the adjustable semi-hollow groove through the second elastic connection structure.

[0017] In one embodiment, the inner side of the adjustable semi-hollow groove is provided with a plurality of parallel second slots; wherein, the second elastic connection structure includes a second card plate and a second elastic member adapted to the second slot; the second card plate is snapped into one of the second slots; the first end of the second elastic member is connected to the second card plate, and its tail end is fixedly connected to the top end of the soft conductive probe, the tail end of the soft conductive probe extending into the second through hole.

[0018] In one embodiment, the second plate, the third plate, and the fourth plate are made of an electrically insulating material.

[0019] Based on the above, compared with the prior art, this application has the following beneficial effects:

[0020] The self-testing device for rapid wire size detection provided in this application has a simple structure, good stability, inexpensive and readily available components, and is easy to operate. It can accurately and efficiently detect and provide feedback on wire size, realize real-time monitoring of wire size, and provide real-time alarms for abnormal wire size, which can effectively improve detection efficiency and product quality.

[0021] Other features and beneficial effects of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other beneficial effects of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Unless otherwise specified, the positional relationships in the drawings described below are based on the direction in which the components are drawn in the figures.

[0023] Figure 1 Schematic diagram of the overall structure of the device provided in an embodiment of this utility model Figure 1 ;

[0024] Figure 2 Schematic diagram of the overall structure of the device provided in an embodiment of this utility model Figure 2 ;

[0025] Figure 3 An exploded view of a device provided in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the outer casing of the device provided in one embodiment of the present invention;

[0027] Figure 5 A partial enlarged view of the fixing groove of the outer shell of the device provided in an embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the first ring plate of the device provided in an embodiment of the present invention;

[0029] Figure 7 for Figure 6 A magnified view of a portion of the image;

[0030] Figure 8 A schematic diagram of the maximum limit plate of the device provided in an embodiment of this utility model;

[0031] Figure 9 This is a schematic diagram of the minimum limit plate of the device provided in an embodiment of the present invention;

[0032] Figure 10 A schematic diagram of the circuit board of the device provided in an embodiment of this utility model;

[0033] Figure 11 for Figure 10 A magnified view of a portion of the image;

[0034] Figure 12 This is a schematic diagram of the structure of the second ring plate of the device provided in an embodiment of the present invention;

[0035] Figure 13 for Figure 12 A magnified view of a portion of the image;

[0036] Figure 14 This is a schematic diagram illustrating the normal operation of the device during testing, according to an embodiment of the present invention.

[0037] Figure 15 A schematic diagram of the conductive circuit during normal testing of the device provided in an embodiment of this utility model;

[0038] Figure 16 This is a schematic diagram illustrating the working state of the device provided in an embodiment of the present invention when detecting excessive curvature. Figure 1 ;

[0039] Figure 17 This is a schematic diagram illustrating the working state of the device provided in an embodiment of the present invention when detecting excessive curvature. Figure 2 ;

[0040] Figure 18 for Figure 17 A magnified view of a portion of the image;

[0041] Figure 19 A schematic diagram of the conductive circuit for detecting excessive bending degree in an embodiment of this utility model;

[0042] Figure 20 This is a schematic diagram illustrating the working condition of the device when detecting an excessively large size, according to an embodiment of the present invention.

[0043] Figure 21 A schematic diagram of the conductive circuit for detecting an excessively large size using a device provided in an embodiment of this utility model;

[0044] Figure 22 This is a schematic diagram illustrating the working condition of the device in one embodiment of the present invention when detecting an excessively small size.

[0045] Figure 23 This is a schematic diagram of the conductive circuit for detecting an undersized device according to an embodiment of the present invention.

[0046] Figure label:

[0047] 200. Wire; 1. Housing; 2. First ring plate; 3. Maximum limit plate; 4. Minimum limit plate; 5. Circuit plate; 6. Second ring plate; 7. Bending alarm window; 8. Maximum value alarm; 9. Minimum value alarm; 10. Hollow hole; 11. Fixing groove; 12. Positioning ring; 13. Fixing plug; 14. First plate; 15. Positioning semi-hollow groove; 16. First slot; 17. First locking plate; 18. First elastic element; 19. First conductive strip; 20. First conductive sheet; 32. Bending alarm; 21. Third plate; 22. Second conductive strip; 23. Fourth plate; 24. Soft conductive element; 25. Second plate; 26. Adjustable semi-hollow groove; 27. Soft conductive probe; 28. Second locking plate; 29. ​​Second slot; 30. Second elastic element. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The technical features designed in the different implementations of this application described below can be combined with each other as long as they do not conflict with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0049] In the description of this application, it should be noted that all terms used in this application (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains, and should not be construed as limiting the scope of this application; it should be further understood that the terms used in this application should be understood to have the same meaning as those in the context of this specification and in the relevant field, and should not be interpreted in an idealized or overly formal sense, except as expressly defined in this application.

[0050] This application provides, as follows: Figure 1-23 The self-testing device for rapid testing of wire 200 shown in the embodiment:

[0051] The self-inspection device for rapid testing of wire 200 has self-inspection functions for curvature and dimensions. It is a type of wire dimension and curvature detection device, mainly used for quality control in the production process of wire 200 (such as tungsten materials). Specifically, it includes a curvature self-inspection module and a dimension self-inspection module.

[0052] 1. Bending self-check function module

[0053] The bending self-test module includes a bending alarm 32, a first ring plate 2, and a loop plate 5 located on one side of the first ring plate 2.

[0054] The first ring plate 2 includes a first plate body 14, a conductive positioning ring 12, and a first elastic connection structure. The first plate body 14 has a first through hole in its center for a wire 200 to pass through, and a first conductive strip 19 is provided on the wall of the first through hole. A first conductive sheet 20 is arranged around the outer periphery of the positioning ring 12. The circuit plate 5 includes a second plate body 25 with a second through hole in its center and a soft conductive probe 27 extending into the second through hole.

[0055] The positioning ring 12 is located within the first through hole, and is fixedly connected to the first plate 14 via a plurality of first elastic connection structures arranged around its outer periphery. In its natural state without external force, the positioning ring 12 is coaxial with the first and second through holes and separate from the first conductive strip 19. When the positioning ring 12 is subjected to the external force of the bending wire 200, its axis can shift, allowing the first conductive sheet 20 to contact the first conductive strip 19 and form an electrical connection; the first conductive strip 19 and the soft conductive probe 27 are respectively electrically connected to the two poles of an external power supply. The bending alarm 32 is connected to a first conductive circuit formed by the electrical connection of the first conductive strip 19, the first conductive sheet 20, the wire 200, and the soft conductive probe 27.

[0056] Optionally, the first through hole and the second through hole are circular holes; the positioning ring 12 is a circular ring.

[0057] Specifically, the bending detection process is as follows:

[0058] like Figure 2 As shown, when the positioning ring 12 is not subjected to external force in its natural state, the positioning ring 12 is coaxial with the first through hole and the second through hole, that is, the positioning ring 12 is located in the middle position of the first through hole. At this time, the first conductive strip 19 and the first conductive sheet 20 are separated, and the first conductive circuit is broken.

[0059] like Figure 14-15 As shown, during use, when the straightness of the wire 200 is normal, the wire 200 continuously passes through the positioning ring 12. When the straight wire 200 passes through, its axis is coaxial with the first through hole and the second through hole. The positioning ring 12 does not shift and remains in the middle position. At this time, the first conductive strip 19 and the first conductive sheet 20 are separated, and the first conductive circuit is broken.

[0060] like Figure 16-19As shown, when the bending degree of a certain segment of wire 200 is greater than or equal to a certain limit, when that segment of wire 200 passes through the positioning ring 12, the wire 200 causes the axis of the positioning ring 12 to shift. At this time, the first elastic connection structure in the offset direction is compressed, and the first elastic connection structure on the opposite side of the offset direction is stretched, so that the first conductive piece 20 at the offset position contacts the first conductive strip 19 to form an electrical connection. Furthermore, since the area where the wire 200 passes through the second through hole contacts the soft conductive probe 27, the positive terminal of the external power supply, the first conductive strip 19, the first conductive piece 20, the positioning ring 12, the wire 200, the soft conductive probe 27, and the negative terminal of the external power supply are electrically connected to form a first conductive circuit. This triggers the circuit of the bending alarm 32 connected to the first conductive circuit to conduct, and the bending alarm 32 issues an alarm. Through the above process, real-time alarm for abnormal bending degree is achieved.

[0061] Optionally, the positioning ring 12 is made of an elastically deformable and conductive material. In its natural state without external force expansion, the positioning ring 12 is coaxial with the first through hole and the second through hole. When its axial position remains unchanged and it is expanded outward by external force to contact the first conductive strip 19, its inner diameter is greater than the maximum size limit of the wire 200.

[0062] The positioning ring 12 is designed to be elastically deformable, meaning it can elastically expand, and its dimensions can change. This allows it to adapt to the compression of the wire 200, whose dimensions fluctuate within a specified range, ensuring that the wire 200 can pass smoothly within the ring. Furthermore, as... Figure 20 As shown, when the wire 200 with the maximum size limit passes through the positioning ring 12, the first conductive sheet 20 will still not contact the first conductive strip 19 after the positioning ring 12 expands. This avoids the false triggering of the bending abnormality alarm due to the excessive size, and also facilitates cooperation with the subsequent size self-test module.

[0063] Optionally, the first plate 14 has a plurality of positioning semi-hollow grooves 15 arranged around the outer periphery of the first through hole. The opening of the positioning semi-hollow groove 15 extends through the first through hole, and the inner side of the positioning semi-hollow groove 15 is provided with a plurality of parallel first slots 16; the first elastic connection structure is located within the positioning semi-hollow groove 15. The first elastic connection structure includes a first locking plate 17 adapted to the first slot 16 and a first elastic element 18; the first locking plate 17 is engaged with one of the first slots 16. The first end of the first elastic element 18 is connected to the first locking plate 17, and its tail end passes through the slot and is fixedly connected to the positioning ring 12, so that the positioning ring 12 is fixedly connected to the first plate 14 through the first elastic connection structure. Optionally, the positioning ring 12 and the first elastic structure are detachably connected.

[0064] Adopting the design described above, such as Figure 16As shown, when the bending degree of a certain section of the wire 200 is greater than or equal to a certain limit, the wire 200 causes the positioning ring 12 to shift to one end, the first elastic element 18 is compressed or stretched, and the first conductive sheet 20 in the shifting direction contacts the first conductive strip 19. Through the cooperation of the first slot 16 and the first locking plate 17, the position of the first locking plate 17 can be adjusted, thereby adjusting the position of the first elastic element 18 in various directions. This allows for fine-tuning of the orientation of the positioning ring 12. Furthermore, when it is necessary to replace the positioning ring 12 with a new one of a different size, the elasticity of the first elastic element 18 and the position of the positioning ring 12 can also be adjusted by adjusting the position of the first locking plate 17. The detachable locking design also facilitates the replacement of the first elastic element 18. With the above design, the device is highly adaptable and easier to use.

[0065] Optionally, a plurality of first conductive sheets 20 are arranged around the outer periphery of the positioning ring 12, and the tail end of the first elastic member 18 is connected to the first conductive sheets 20; the bending alarm 32 is disposed on the first clamping plate 17 and electrically connected to the first conductive sheets 20, so that the bending alarm 32 is connected to the first conductive circuit. With the above design, the overall connection structure is simpler and the device is more compact.

[0066] Optionally, each of the first conductive sheets 20 is provided with a bending alarm 32.

[0067] By designing the first conductive plates 20 to be evenly distributed in a ring, monitoring can be performed on all directions of the wire 200. In practical use, each bending alarm 32 is individually electrically connected to the first conductive plate 20. If the first conductive plate 20 at this location contacts the first conductive strip 19, a first conductive loop is formed, and the bending alarm 32 corresponding to this loop will respond. This allows N first conductive plates 20 to form an independent alarm response as long as they contact each other, thereby monitoring all directions of the wire 200 and identifying which direction the wire is bent.

[0068] The positioning ring 12 is divided into a conductive area and an insulating area. The position corresponding to each first conductive piece 20 is a conductive area, and adjacent conductive areas are separated by an insulating area.

[0069] To achieve optimized design for multi-directional monitoring, the positioning ring 12 is not entirely conductive, but divided into regions (conductive and insulating regions). The positioning ring 12 is conductive at the position corresponding to each conductive piece, allowing the first conductive piece 20 in contact with the first conductive strip 19 to form a path with its corresponding conductive region on the positioning ring 12. This conductive region then forms a path with the wire 200. Insulating regions are designed between adjacent conductive regions on the positioning ring 12, ensuring that adjacent conductive regions are non-conductive and preventing current from the first conductive piece 20 in contact with the first conductive strip 19 from being conducted to the entire positioning ring 12, thus ensuring that the bending alarms 32 in all directions respond.

[0070] Optionally, a plurality of first conductive sheets 20 are arranged at equal angles around the outer periphery of the positioning ring 12, and the positioning semi-hollow groove 15 and the first elastic connection structure are arranged at equal angles around the outer periphery of the first through hole.

[0071] With the above design, the alignment and adjustment of the positioning ring 12 axis is more convenient, and the bending degree detection of the wire 200 at all positions of the same cross section is more evenly distributed.

[0072] Optionally, the circuit board 5 further includes a second elastic connection structure; the second plate 25 has an adjustable semi-open groove 26 above the second through hole; the soft conductive probe 27 is connected to the adjustable semi-open groove 26 through the second elastic connection structure. Further optionally, the inner side of the adjustable semi-open groove 26 is provided with a plurality of parallel-arranged second slots 29; wherein, the second elastic connection structure includes a second locking plate 28 and a second elastic element 30 adapted to the second slot 29; the second locking plate 28 is snapped into one of the second slots 29; the first end of the second elastic element 30 is connected to the second locking plate 28, and its tail end is fixedly connected to the top end of the soft conductive probe 27, the tail end of the soft conductive probe 27 extending into the second through hole.

[0073] The second flexible connection structure is designed as described above, allowing the orientation of the soft conductive probe 27 to be adjusted adaptively, improving the flexibility of the device and making it easier to use.

[0074] Optionally, the bending alarm 32 can be an alarm light. Using an alarm light provides a more direct and intuitive warning.

[0075] Optionally, the first plate 14 and the second plate 25 are made of electrically insulating material.

[0076] The first plate 14 and the second plate 25 are made of electrically insulating material to improve the safety performance of the equipment.

[0077] Optionally, the first elastic element 18 and the second elastic element 30 are springs.

[0078] Optionally, the first conductive sheet 20 is a metal block patch. It should be noted that, based on the above design concept, other conductive materials can also be used, including but not limited to the embodiments described.

[0079] 2. Dimension self-checking function module

[0080] To avoid the problems of poor accuracy and high manpower consumption in manual dimensional inspection, existing solutions on the market have proposed using automated equipment for wire 200mm dimension inspection. However, current production control of wire 200mm dimension generally relies on the photosensitive system in the machine for dimension identification, which has poor detection accuracy and contains certain errors. Due to the poor accuracy, additional batch sampling inspection is required during production for further product testing. The inspection results are greatly affected by equipment stability and operator skill, making it difficult to accurately identify whether abnormal product parameters meet standards. In addition, existing inspection machines made of photosensitive systems and other components are complex, difficult to maintain, and have expensive components. Therefore, this application also involves a dimension self-inspection function module.

[0081] Self-check for maximum size limits:

[0082] The size self-checking function module includes a maximum value alarm 8 and a size limit plate assembly, wherein the size limit plate assembly includes a maximum limit plate 3. The maximum limit plate 3, the loop plate 5, and the maximum value alarm 8 work together to achieve size maximum value detection and monitoring.

[0083] The maximum limit plate 3 includes a third plate body 21. A third through hole is formed in the center of the third plate body 21 for the wire 200 to pass through. A second conductive strip 22 is provided on the wall of the third through hole to form a conductive hole. The inner diameter of the conductive hole is equal to the maximum size limit of the wire 200. The two poles of an external power supply are electrically connected to the second conductive strip 22 and the soft conductive probe 27, respectively. When the size of the wire 200 reaches the maximum size limit, the wire 200 contacts the second conductive strip 22 to form an electrical connection, thereby electrically connecting the second conductive strip 22, the wire 200, and the soft conductive probe 27 to form a second conductive circuit. The maximum value alarm 8 is connected to the second conductive circuit. Optionally, both the second through hole and the third through hole are circular holes and are coaxial.

[0084] Specifically, the size of the annulus (i.e., conductive hole) formed by the second conductive strip 22 and the third through hole limits the maximum allowable size of the wire 200. Wires exceeding this maximum limit cannot pass through the device. Under normal conditions, the device's detection and operation process is as follows:

[0085] like Figure 14-15As shown, when in use, with the wire 200 in normal size, the wire 200 continuously passes through the third through hole. The wire 200 is in normal size. At this time, the size of the wire 200 is smaller than the conductive hole and does not contact the second conductive strip 22. The conductive circuit is broken and the maximum value alarm 8 does not respond.

[0086] like Figure 20-21 As shown, when the wire 200 reaches its maximum size limit, the outer wall of the wire 200 comes into contact with the second conductive strip 22. Furthermore, because the wire 200 passes through the area of ​​the second through-hole and contacts the soft conductive probe 27, the positive terminal of the external power supply, the second conductive strip 22, the wire 200, the soft conductive probe 27, and the negative terminal of the external power supply are electrically connected to form a second conductive circuit. This triggers the circuit of the maximum value alarm 8 connected to the second conductive circuit to conduct, and the maximum value alarm 8 issues an alarm. Through the above process, real-time alarms are achieved for abnormalities where the size reaches the maximum limit.

[0087] Optionally, a plurality of second conductive strips 22 are arranged in the inner ring of the third through hole; each of the second conductive strips 22 is electrically connected to one of the stages of the external power supply to form a second conductive circuit, wherein the maximum value alarm 8 is electrically connected to each of the second conductive circuits.

[0088] By uniformly distributing the second conductive strips 22 in a ring, monitoring can be performed on all directions of the wire 200. In practical use, each second conductive strip 22 is independently connected to the positive terminal of an external power supply to form an independent conductive circuit. That is, each second conductive strip 22 constructs a second conductive circuit consisting of the second conductive strip 22, the wire 200, the soft conductive probe 27, and the negative terminal of the external power supply. N second conductive strips 22 construct N second conductive circuits, and each second conductive circuit is connected to a maximum value alarm 8, thereby enabling individual monitoring of each direction of the wire 200. If the size of the wire 200 in a certain direction reaches the maximum limit, the maximum value alarm 8 for that direction will respond and issue an alarm. If the size of the wire 200 is normal and does not exceed the limits in any direction, all maximum value alarms 8 will not respond during equipment operation.

[0089] Optionally, the second conductive strip 22 is embedded in the inner wall of the third through hole.

[0090] Optionally, the maximum value alarm 8 is an alarm light. Using an alarm light provides a more intuitive warning.

[0091] Optionally, the external dimensions of the third plate 21 are slightly smaller than those of the first plate 17.

[0092] Minimum size limit self-check:

[0093] The system includes a minimum value alarm 9; the size limit plate assembly also includes a minimum value plate 4. The minimum value plate 4, the loop plate 5, and the minimum value alarm 9 work together to achieve size minimum value detection and monitoring.

[0094] The minimum limit plate 4 includes a fourth plate body 23. A fourth through hole is formed in the center of the fourth plate body 23, and a plurality of flexible conductive elements 24 are arranged around the fourth through hole. The first end of each flexible conductive element 24 is connected to the wall of the fourth through hole, and its tail end points towards the axis of the fourth through hole, so that when a wire 200 with a size equal to the minimum size limit passes through the fourth through hole, the tail end of the flexible conductive element 24 just contacts the wire 200.

[0095] The two poles of the external power supply are electrically connected to the flexible conductive element 24 and the flexible conductive probe 27, respectively. When the size of the wire 200 is greater than or equal to the minimum size limit of the wire 200, the wire 200 contacts the flexible conductive element 24 to form an electrical connection, thereby forming a third conductive circuit with the flexible conductive element 24, the wire 200, and the flexible conductive probe 27. The minimum value alarm 9 is connected to the third conductive circuit. Optionally, the second through hole, the third through hole, and the fourth through hole are all circular holes, and are coaxial.

[0096] Specifically, such as Figure 14-15 As shown, during use, when the wire 200 is of normal size, the wire 200 continuously passes through the fourth through hole. When the size of the wire 200 is greater than or equal to the minimum limit, the wire 200 contacts the flexible conductive element 24 to form an electrical connection (when the size of the wire 200 is equal to the minimum size limit, the tail end of the flexible conductive element 24 just contacts the wire 200). Since the area where the wire 200 passes through the second through hole contacts the flexible conductive probe 27, the positive terminal of the external power supply, the flexible conductive element 24, the wire 200, the flexible conductive probe 27, and the negative terminal of the external power supply are electrically connected to form a third conductive circuit. This triggers the circuit of the minimum value alarm 9 connected to the third conductive circuit to conduct, and the minimum value alarm 9 indicates that there is no abnormality.

[0097] like Figure 22-23 As shown, when the size of wire 200 is smaller than the minimum size limit, the outer wall of wire 200 does not contact the soft conductive part 24, the third conductive circuit is broken, the minimum value alarm 9 is deactivated, and the minimum value alarm 9 does not respond, thus alerting the operator. Through the above process, real-time alarm for abnormalities where the size is below the minimum limit is achieved.

[0098] Optionally, each of the soft conductive elements 24 is electrically connected to one of the external power sources to form a third conductive circuit, wherein each of the third conductive circuits is electrically connected to the minimum value alarm 9.

[0099] By designing a uniform ring distribution of flexible conductive elements 24, monitoring can be performed on all directions of the wire 200. In practical use, each flexible conductive element 24 can be independently connected to the positive terminal of an external power supply to form an independent conductive circuit. That is, each flexible conductive element 24 constructs a conductive circuit consisting of the flexible conductive element 24, the wire 200, the flexible conductive probe 27, and the negative terminal of the external power supply. N flexible conductive elements 24 construct N third conductive circuits, and each third conductive circuit is connected to a minimum value alarm 9, thereby enabling individual monitoring of all directions of the wire 200.

[0100] If the dimension of wire 200 in a certain direction is less than the minimum limit, the minimum alarm 9 for that direction will not respond, and an alarm will be issued. If the dimension of wire 200 is normal in all directions, all minimum alarms 9 will respond during equipment operation.

[0101] Optionally, a plurality of flexible conductive elements 24 are arranged circumferentially within the fourth through hole. The first ends of the flexible conductive elements 24 are connected to the wall surface of the fourth through hole, and their tail ends extend radially along the fourth through hole and point towards the axis of the fourth through hole, so that the tail ends of the plurality of flexible conductive elements 24 form a circle. With this design, the inner diameter of the circle formed by the tail ends of the flexible conductive elements 24 is exactly equal to the minimum size limit.

[0102] Optionally, a plurality of the soft conductive elements 24 are arranged in a ring at equal angles inside the fourth through hole.

[0103] Optionally, the second plate 25, the third plate 21, and the fourth plate 23 are made of electrically insulating material.

[0104] Optionally, the maximum value alarm 8 is an alarm light. Using an alarm light provides a more intuitive warning.

[0105] Optionally, the flexible conductive element 24 is a conductive carbon brush; it should be noted that, based on the above design concept, other flexible conductive materials can also be used, including but not limited to the embodiments described above.

[0106] 3. Other auxiliary modules:

[0107] Stable module design:

[0108] Optionally, the system includes two ring plate components, specifically a second ring plate component 6. The first ring plate component 2 and the second ring plate component 6 are located on the front and rear sides of the circuit plate component 5, respectively. The first conductive strip 19 of the first ring plate component 2 is electrically connected to the external power supply, and the bending alarm 32 is connected to the first conductive circuit of the first ring plate component 2. The second ring plate component 6 is not electrically connected to the external power supply and does not have a corresponding bending alarm 32. The size limit plate assembly is arranged between the first ring plate component 2 and the circuit plate component 5.

[0109] The second ring plate 6 is structurally similar to the first ring plate 2, except that the first locking plate 17 in the positioning semi-empty groove 15 of the first ring plate 2 is equipped with a bending alarm 32, and the first conductive strip 19 is electrically connected to the external power supply. The second ring plate 6 does not form a conductive loop with an external circuit. At the same time, its first locking plate 17 is an insulated first locking plate 17, which is used to stabilize the wire 200 as it passes through the device continuously, preventing it from tilting downwards.

[0110] In this embodiment, the size limit plate assembly is arranged between the first ring plate 2 and the loop plate 5. The second ring plate 6 is located behind the loop plate 5. The first ring plate 2, the maximum limit plate 3, and the minimum limit plate 4 are connected to the external power supply in parallel. When the wire 200 is installed, each of them forms a complete loop under certain conditions. The order of the maximum limit plate 3 and the minimum limit plate 4 can be adjusted adaptively without excessive restrictions.

[0111] Shell 1 Design:

[0112] Optionally, it also includes a housing 1. The housing 1 has a hollow hole 10 in the middle for the wire 200 to pass through, and the inner diameter of the hollow hole 10 is larger than the maximum size limit.

[0113] In the housing 1, the hollow hole 10 is the maximum rated size hole of the equipment, which limits the maximum wire size 200 that the equipment can measure.

[0114] In this embodiment, the major components are sequentially assembled inside the outer casing 1 to form a complete unit. The entire device is driven by an external power source. The circuit board 5 is connected to the negative terminal of the power source, while the first ring-type board 2, the maximum limit board 3, and the minimum limit board 4 are connected in parallel to the positive terminal of the external power source. Its overall structure is simple and compact, easy to install, and the components are easy to replace and combine, resulting in high flexibility and adaptability in use.

[0115] Optionally, the bending alarm 32, the maximum value alarm 8, and the minimum value alarm 9 are alarm lights; the housing 1 is provided with a bending alarm window 7 and a lighting area for installing the maximum value alarm 8 and the minimum value alarm 9; wherein the position of the bending alarm window 7 corresponds to that of the bending alarm 32.

[0116] The design incorporates a curved alarm window 7 and a lighting area for easy and intuitive observation of the monitoring situation.

[0117] Optionally, the housing of the outer casing 1 is made of an electrically insulating material.

[0118] Optionally, the inner side of the outer casing 1 is provided with a fixing groove 11. The outer side of the ring plate is provided with a fixing block 13 that matches the fixing groove 11. Optionally, the fixing groove 11 is trapezoidal.

[0119] like Figure 3 and 5 As shown in Figure 6, the fixing groove 11 is located at both ends of the inner side of the housing and is trapezoidal. The fixing block 13 corresponds to the fixing groove 11 and can hold the ring plate in place to prevent movement, thus better stabilizing the internal structure of the device and preventing shaking. During the operation of the first ring plate 2, since the first plate 14 is not conductive, the entire plate is in an open circuit state.

[0120] Optionally, the bending alarm window 7 is equipped with a glass plate. The glass plate protects the internal structure from contamination, and allows observation of whether the bending degree of the wire 200° meets the requirements.

[0121] Based on the above overview of the workflow of each module, the working response phenomena and effects of the self-testing device for the rapid detection wire 200 are as follows:

[0122] Main effect 1:

[0123] Passing 200 mm of wire that meets the required dimensions and bending degree through the device completes the inspection of the device's operation. The device's operation status is as follows: Figure 14-15 As shown. During normal operation of the equipment, wire 200 acts as a conductor, connecting with each channel and circuit board 5 at the minimum limit board 4 and the external power supply to form a circuit, causing all the minimum value alarms 9 at the outer casing 1 to light up and all other alarm lights to turn off.

[0124] Main effect 2:

[0125] A wire 200, which is slightly undersized but has acceptable bending degree, is passed through this device to complete the inspection of the device's operation. The device's operation status is as follows: Figure 22-23 As shown. During normal operation of the equipment, wire 200, acting as a conductor, is not connected to any of the components and cannot form a circuit. At this time, all indicator lights on the device are off.

[0126] Main effect 3:

[0127] A wire 200, which is slightly oversized but has acceptable bending, is passed through the device to complete the inspection of the device's operation. The device's operation status is as follows: Figure 20-21 As shown. During normal operation of the equipment, wire 200 acts as a conductor and connects to each channel at the minimum limit plate 4, each channel at the maximum limit plate 3, each channel at the circuit plate 5, and the external power supply to form a circuit, so that the maximum value alarm 8 and the minimum value alarm 9 at the outer casing 1 are all lit up, and all other alarm lights are extinguished.

[0128] Main effect 4:

[0129] Passing a properly sized, upward-bent wire 200 through the device completes the inspection of the device's operation. The device's operation status is as follows: Figure 16-19 As shown. During normal operation of the equipment, the wire 200 acts as a conductor and connects to each channel at the minimum limit plate 4, the channel at the upper end of the first ring plate 2, each channel at the circuit plate 5, and the external power supply to form a circuit, so that all the minimum alarms 9 at the outer casing 1 light up, and the bending alarm 32 at the upper end of the ring plate lights up.

[0130] In summary, this device utilizes the conductivity of wire 200 to establish a circuit between wire 200 and the equipment via an external power supply, thereby completing the detection of dimensions and curvature. The main technical indicators met by the embodiments of this application regarding the equipment's testing requirements are shown in Table 1.

[0131] Table 1. Response status of equipment technical specifications in this application.

[0132]

[0133] It should be noted that:

[0134] In this embodiment, each plate is made of insulating material PP, which is lightweight and inexpensive, thus improving the ease of use of the device. Other materials can also be used based on the above design concept, including but not limited to the embodiments described above.

[0135] In this embodiment, eight first conductive strips 19 are arranged at equal angles, thus corresponding to eight bending alarms 32, eight first elastic connection structures, and eight bending alarm windows 7, forming eight first conductive paths. Similarly, eight second conductive strips 22 are arranged at equal angles, thus corresponding to eight maximum value alarms 8 and eight lighting areas, forming eight second conductive paths. Eight flexible conductive parts 24 are arranged at equal angles, thus corresponding to eight minimum value alarms 9 and eight lighting areas, forming eight third conductive paths. Based on the above design concept, the number of the above components can be adaptively adjusted according to requirements, including but not limited to the embodiment scheme.

[0136] Furthermore, for the combination of various panels, panels with the required functions can be selected according to needs. For example, if only bending degree needs to be measured, a combination of a ring panel and a loop panel 5 can be used, including but not limited to the solution in this embodiment where all modules are combined into one unit. The overall operation is highly flexible.

[0137] In addition, the monitoring effect of the self-testing device for rapid wire testing provided in the embodiment was experimentally verified:

[0138] Example 1:

[0139] To study the device's effectiveness in detecting the size of tungsten materials, tungsten materials with a diameter of 20cm and a length of 5m were selected. The tungsten material's size index was ±1cm and its bending index was <1cm (5m). Tests were conducted on qualified tungsten materials. The important parameters of some parts in the device are shown in Table 2.

[0140] Table 2. Key parameters of some parts in the device

[0141]

[0142] During the operation of the device, only the minimum alarm on the outer casing lit up, and the equipment test results showed no abnormalities compared with the actual situation.

[0143] Example 2:

[0144] To study the device's effectiveness in detecting the size of tungsten materials, a tungsten material with a diameter of 26 cm and a length of 8 m was selected. The tungsten material's size index was ±1 cm and its bending index was <1 cm (8 m). Tests were conducted on qualified tungsten materials. The important parameters of some parts in the device are shown in Table 3.

[0145] Table 3. Key parameters of some parts in the device

[0146]

[0147] During the operation of the device, only the minimum alarm on the outer casing lit up, and the equipment test results showed no abnormalities compared with the actual situation.

[0148] Example 3:

[0149] To study the device's effectiveness in detecting the size of tungsten materials, tungsten materials with a diameter of 26 cm and a length of 8 m were selected. The tungsten material size index was ±1 cm and the curvature index was <1 cm (8 m). Tests were conducted on tungsten materials with a diameter of 26 cm and a curvature of 1.5 cm in the first half of the area and a diameter of 27.5 cm and a curvature of 0.3 cm in the second half of the area. The important parameters of some parts of the device are shown in Table 4.

[0150] Table 4. Key parameters of some parts in the device

[0151]

[0152] During the operation of the device, the minimum alarm on the outer casing is lit in the first half of the detection area. When the abnormal position is reached, the bending alarm on the first card plate at the upper left end is lit. In the second half of the detection area, the minimum alarm on the outer casing is lit in the first half of the detection area. When the abnormal position is reached, the maximum alarm is lit in the second half of the detection area. The detection results of the equipment are not abnormal compared with the actual situation.

[0153] Comparison of the device in this application with other existing devices:

[0154] Comparative Example 1:

[0155] Patent 1 (CN113218292B) discloses a capacitive sensor for size detection. The size detection device includes a battery, a trackpad assembly, and a sensing strip. The battery is located inside a computer casing, the trackpad assembly is located in an opening defined in the keyboard surface, and the sensing strip connects a connector to the trackpad assembly. Size is measured by measuring changes in capacitance. This capacitive sensor can be positioned to detect changes in the size of an object.

[0156] Compared to the prior art patent 1, the solution of this application can limit the minimum and maximum limits required for the mass production of tungsten materials, promptly issue alarms for problematic products during the production process, improve the accuracy of product measurement, and provide a new method for quality control in large-scale industrial production. Furthermore, the device of this application can also perform real-time detection of bending.

[0157] Comparative Example 2:

[0158] Patent 2 (CN111025881B) discloses a size inspection machine, the solution of which is: the device includes a base, a moving mechanism, a detection mechanism, and a fixing mechanism. This patent places the fixing mechanism on the moving mechanism, and the fixing mechanism is movably connected to the moving mechanism, which can improve the working efficiency of the device. Due to the cooperation between the gripper and the limiting shaft in the fixing mechanism of this patent, it can be adapted to fix different types of watch cases.

[0159] Compared with the comparative patent 2, the embodiment of this application can detect not only the size but also the curvature. The entire device structure is composed of multiple components that can be replaced as needed, making it more operable and more accurate in measurement.

[0160] Comparative Example 3:

[0161] Patent 3 (CN114166127B) discloses a rebar size measuring instrument. The device includes a lens barrel, a main lens barrel, an optical lens group fixedly installed in the main lens barrel with a fixed focal length, a drive assembly connected between the main lens barrel and the fixed lens barrel for reciprocating movement of the main lens barrel relative to the fixed lens barrel along the optical axis, and an image sensor fixedly installed behind the optical lens group in the main lens barrel. This patent maintains a constant system magnification by moving the entire main lens barrel and improves measurement accuracy through a telecentric optical path, achieving real-time measurement.

[0162] Compared with Patent 3, the present application's embodiment can detect curvature in addition to size detection. The entire device structure is composed of multiple components that can be replaced as needed, making it more operable. Moreover, the components are cheaper and more readily available. Patent 3 has more optical components, higher complexity, and is more expensive.

[0163] In summary, the self-testing device for rapid wire testing provided in this application has the following advantages and effects:

[0164] 1. The device provided in this application includes two modules: dimension detection and curvature detection. These two modules can be controlled independently and synchronously, achieving real-time detection of abnormal products. Furthermore, different functional panel combinations can be selected according to requirements.

[0165] 2. The size detection in the device provided in this application embodiment consists of two modules: a smaller module controls the minimum value, and a larger module controls the maximum value. Through real-time monitoring, if any abnormality occurs (size too large or too small), an alarm can be triggered to immediately stop the production line equipment.

[0166] 3. The bending detection in the device provided in this application embodiment is composed of a first elastic connection structure (comprising a first elastic element and a first retaining plate), which improves the stability of the device and ensures that the device can still recover its state after multiple uses. Furthermore, the cooperation between the first retaining plate and the first retaining groove facilitates the adjustment and replacement of the elastic element and the positioning ring.

[0167] 4. The device provided in this application embodiment has a simple structure and can achieve the detection of different sizes by replacing some parts (replacing different plates or conductive parts within the plates, such as soft conductive parts). The device has a small driving current and a small size. Except for the conductive parts, the construction material is PP material, which has good insulation effect, light weight, and is easy to carry and use.

[0168] In summary, the embodiments of this application constrain the wire dimensions by using outer frames of different shapes, constrain the curvature by using a movable frame fixing structure, and indicate product abnormality when multiple alarm lights illuminate simultaneously, thereby providing timely feedback on abnormal product conditions and improving the quality of finished products.

[0169] This application optimizes the device by simplifying its structure to improve detection efficiency and enhance feedback. This results in a self-testing device for rapid wire inspection that is simple, stable, uses readily available and inexpensive components, is easy to operate, and can accurately and efficiently detect and provide feedback on wire dimensions and curvature. It enables real-time monitoring of wire dimensions and curvature, and provides real-time alarms for any abnormalities, effectively improving detection efficiency and product quality.

[0170] It should be noted that:

[0171] This application verifies that the embodiments can be applied to tungsten material testing. However, based on the above design concept, it is clear that it can be widely applied to the testing of conductive filamentous, wire-like, and strip-like products, including but not limited to tungsten wires. The novel rapid self-testing device for wires provided in this application, with its constructed structure and feedback method, can lay the foundation for real-time monitoring of the size and curvature of conductive materials during mass production. In addition, it can also provide a theoretical basis for the testing methods of such testing devices.

[0172] Furthermore, those skilled in the art should understand that although many problems exist in the prior art, each embodiment or technical solution of this application can be improved in only one or a few aspects, without necessarily solving all the technical problems listed in the prior art or background art simultaneously. Those skilled in the art should understand that anything not mentioned in a claim should not be considered a limitation of that claim.

[0173] Although this document frequently uses terms such as positioning ring, fixing block, first plate, positioning semi-empty groove, first slot, first card plate, first elastic element, first conductive strip, and first conductive sheet, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this application; interpreting them as any additional limitation would contradict the spirit of this application. The terms "first," "second," etc. (if present) in the description, claims, and accompanying drawings of the embodiments of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0174] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features; and these 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 application.

Claims

1. A self-inspection device for rapidly detecting wire dimensions, characterized in that: It includes a maximum value alarm (8), a size limit plate assembly and a loop plate (5) arranged in sequence; the size limit plate assembly includes a maximum value plate (3). The circuit board (5) includes a second plate (25) with a second through hole in the middle and a soft conductive probe (27) extending into the second through hole; the maximum limit board (3) includes a third plate (21); the third plate (21) has a third through hole in the middle for the wire (200) to pass through, and a second conductive strip (22) is provided on the wall of the third through hole to form a conductive hole, the inner diameter of the conductive hole being equal to the maximum size limit of the wire (200); The two poles of the external power supply are electrically connected to the second conductive strip (22) and the soft conductive probe (27) respectively. When the size of the wire (200) reaches the maximum size limit, the wire (200) contacts the second conductive strip (22) to form an electrical connection, so that the second conductive strip (22), the wire (200), and the soft conductive probe (27) are electrically connected to form a second conductive circuit. The maximum value alarm (8) is connected to the second conductive circuit.

2. The self-inspection device for rapid detection of wire dimensions according to claim 1, characterized in that: It also includes a minimum value alarm (9); the size limit plate assembly also includes a minimum limit plate (4). The minimum limit plate (4) includes a fourth plate body (23); a fourth through hole is provided in the middle of the fourth plate body (23), and a number of soft conductive elements (24) are arranged in a ring around the fourth through hole; the first end of the soft conductive element (24) is connected to the wall of the fourth through hole, and its tail end points to the axis of the fourth through hole, so that when a wire (200) with a size equal to the minimum size limit passes through the fourth through hole, the tail end of the soft conductive element (24) just contacts the wire (200); The two poles of the external power supply are electrically connected to the flexible conductive element (24) and the flexible conductive probe (27), respectively. When the size of the wire (200) is greater than or equal to the minimum size limit of the wire (200), the wire (200) contacts the flexible conductive element (24) to form an electrical connection, so that the flexible conductive element (24), the wire (200), and the flexible conductive probe (27) are electrically connected to form a third conductive circuit. The minimum value alarm (9) is connected to the third conductive circuit.

3. The self-inspection device for rapid detection of wire dimensions according to claim 2, characterized in that: The second through hole, the third through hole, and the fourth through hole are all circular holes, and the second through hole, the third through hole, and the fourth through hole are coaxial.

4. The self-inspection device for rapid detection of wire dimensions according to claim 1, characterized in that: The second conductive strip (22) is embedded in the inner wall of the third through hole; And / or, the third through hole is provided with a plurality of second conductive strips (22); each of the second conductive strips (22) is electrically connected to one of the external power sources to form a second conductive circuit, wherein the maximum value alarm (8) is electrically connected to each of the second conductive circuits.

5. The self-inspection device for rapid detection of wire dimensions according to claim 3, characterized in that: Each of the soft conductive elements (24) is electrically connected to one of the external power sources to form a third conductive circuit, wherein each of the third conductive circuits is electrically connected to the minimum value alarm (9).

6. The self-inspection device for rapid detection of wire dimensions according to claim 3, characterized in that: The first ends of several of the soft conductive elements (24) are connected to the wall of the fourth through hole, and their tail ends extend radially along the fourth through hole and point to the axis of the fourth through hole, so that the tail ends of several of the soft conductive elements (24) form a circle.

7. The self-inspection device for rapid detection of wire dimensions according to claim 2, characterized in that: The fourth through hole is provided with a plurality of soft conductive elements (24) arranged at equal angles.

8. The self-inspection device for rapid detection of wire dimensions according to claim 1, characterized in that: The circuit board (5) also includes a second elastic connection structure; The second plate (25) has an adjustable semi-hollow groove (26) above the second through hole; the soft conductive probe (27) is connected to the adjustable semi-hollow groove (26) through the second elastic connection structure.

9. The self-inspection device for rapid detection of wire dimensions according to claim 8, characterized in that: The inner side of the adjustable semi-hollow groove (26) is provided with several parallel second slots (29); The second elastic connection structure includes a second card plate (28) adapted to the second card slot (29) and a second elastic element (30). The second card plate (28) is snapped into one of the second card slots (29); the first end of the second elastic member (30) is connected to the second card plate (28), and its tail end is fixedly connected to the top end of the soft conductive probe (27), the tail end of the soft conductive probe (27) extends into the second through hole.

10. The self-inspection device for rapid detection of wire dimensions according to claim 2, characterized in that: The second plate (25), the third plate (21), and the fourth plate (23) are made of electrically insulating material.

Images