Self-checking device for rapidly detecting wire rod

Abstract

The invention relates to a wire rod detection device, in particular to a self-detection device for rapidly detecting a wire rod. The device comprises a shell, a bending alarm, a belt ring plate and a loop plate, the belt ring plate comprises a first plate body, a conductive positioning ring and a first elastic connecting structure; a first through hole is formed in the middle of the first plate body; a first conductive strip is arranged on the wall surface of the first through hole; first conducting strips are annularly distributed on the periphery of the positioning ring; 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 extending into the second through hole; the positioning ring is arranged in the first through hole through a first elastic connecting structure, the first conductive strip and the soft conductive probe are electrically connected with the two electrodes of an external power source respectively, and the bending alarm is connected into the conductive loop. The device is simple in structure, good in stability, cheap and easily available in parts, convenient to operate and capable of accurately and efficiently detecting and feeding back the bending degree and the size of the wire rod, real-time monitoring of the bending degree and the size of the wire rod is achieved, and the detection efficiency and quality can be effectively improved.

Description

Technical Field

[0001] The present application relates to a wire detection device, and particularly to a self-checking device for quickly detecting wires. Background Art

[0002] Wires refer to metal wires (such as tungsten wires, steel wires, etc.) obtained through processes such as pressure processing, drawing, annealing, etc., and finally wound into coils for delivery. They can be used as raw materials for products such as cord wires and saw wires. When producing wires, different requirements are generally imposed according to their intended uses, such as the physical dimensions of the wires: physical dimensions such as the diameter size and straightness (bending degree) of the wires.

[0003] Currently, there is a method of detecting by manual operation on the market. For example, when detecting the bending degree, it is detected by the naked eye of the detector or sampled and detected manually with a caliper. When the bending degree is small, the above detection method is usually not accurate enough, resulting in errors in the detection results, consuming a large amount of manpower, having low efficiency, and poor timeliness in feedback on production abnormalities.

[0004] In order to avoid the above problems, a solution for detecting the bending degree of wires using automated equipment (such as a laser sleeve device) has also been proposed on the market. However, currently in production, for the control of the bending degree of wires, many use the photosensitive system in the machine for identification, and its detection accuracy is not good, with certain errors. Due to the poor accuracy, it is necessary to further detect the products in the form of batch sampling during production. The detection results are greatly affected by the equipment stability and personnel operation, making it still difficult to accurately identify whether the abnormal product parameters meet the standards. In addition, the existing detection machines prepared from components such as the photosensitive system have high equipment complexity and are not easy to repair, and the component prices are relatively expensive.

[0005] Therefore, how to develop a self-checking device that can quickly detect, has a simple structure, good stability, inexpensive and easily available components, strong operability, and improved detection accuracy and efficiency, and can perform real-time detection and monitoring of the bending degree of wires is exactly the problem that those skilled in the art are committed to solving. Summary of the Invention

[0006] To solve the deficiencies of the prior art mentioned in the above background art, the present application provides a self-checking device for quickly detecting wires, and its technical solution is as follows: The self-checking device for quickly detecting wire provided by the present application includes a housing, a bending alarm, a ringed plate member, and a circuit board member located on one side of the ringed plate member; the ringed plate member includes a first plate body, a conductive positioning ring, and a first elastic connection structure; a first through hole for the wire to pass through is formed in the middle of the first plate body, and a first conductive strip is provided on the wall surface of the first through hole; a first conductive sheet is circumferentially distributed on the outer periphery of the positioning ring; the circuit board member includes a second plate body with a second through hole formed in the middle, and a soft conductive probe extending into the second through hole; wherein, the positioning ring is located in the first through hole, and the positioning ring is fixedly connected to the first plate body through a plurality of the first elastic connection structures circumferentially distributed on its outer periphery; when the positioning ring is in a natural state without external force, the positioning ring is separated from the first conductive strip; when the positioning ring is under the external force of the bent wire, its axis can be offset so that the first conductive sheet contacts the first conductive strip to form an electrical connection; the first conductive strip and the soft conductive probe are respectively electrically connected to two poles of an external power supply; the bending alarm is connected to a first conductive loop formed by electrically connecting the first conductive strip, the first conductive sheet, the wire, and the soft conductive probe.

[0007] In an embodiment, the first through hole and the second through hole are circular holes; the positioning ring is a circular ring; the positioning ring (12) is coaxial with the first through hole and the second through hole.

[0008] In an embodiment, the positioning ring is made of an elastically deformable and conductive material. In its natural state without external force expansion, the positioning ring is coaxial with the first through hole and the second through hole, and when its axis position remains unchanged and it is expanded outward by external force to contact the first conductive strip, its inner diameter is greater than the maximum size limit of the wire.

[0009] In an embodiment, a plurality of positioning semi-empty grooves are circumferentially distributed on the first plate body outside the first through hole; the notch of the positioning semi-empty groove extends through to the first through hole, and a plurality of first clamping grooves arranged in parallel are provided on the inner side surface of the positioning semi-empty groove; the first elastic connection structure is located in the positioning semi-empty groove; wherein, the first elastic connection structure includes a first clamping plate adapted to the first clamping groove and a first elastic member; the first clamping plate is clamped and connected to one of the first clamping grooves; the head end of the first elastic member is connected to the first clamping plate, and its tail end passes through the notch and is fixedly connected to the positioning ring, so that the positioning ring is fixedly connected to the first plate body through the first elastic connection structure.

[0010] In an embodiment, the circuit board member further includes a second elastic connection structure; an adjustable semi-empty groove is formed above the second through hole on the second plate body; the soft conductive probe is connected to the adjustable semi-empty groove through the second elastic connection structure.

[0011] In one embodiment, it further includes a maximum value alarm and a size limit plate assembly; the size limit plate assembly includes a maximum limit plate member; the circuit board member includes a second plate body with a second through hole formed in the middle and a soft conductive probe extending into the second through hole; the maximum limit plate member includes a third plate body; a third through hole for the wire to pass through is formed in the middle of the third plate body, and a second conductive strip is provided 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 of the wire; the two poles of an external power supply are respectively electrically connected to the second conductive strip and the soft conductive probe. When the size of the wire 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 loop; wherein, the maximum value alarm is connected to the second conductive loop.

[0012] In one embodiment, it further includes a minimum value alarm; the size limit plate assembly further includes a minimum limit plate member; the minimum limit plate member includes a fourth plate body; a fourth through hole is formed in the middle of the fourth plate body, and a plurality of soft conductive members are circumferentially arranged inside the fourth through hole; the head ends of the soft conductive members are connected to the wall surface of the fourth through hole, and their tail ends point 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 ends of the soft conductive members just contact the wire; wherein, the two poles of an external power supply are respectively electrically connected to the soft conductive members and the soft conductive probe. When the size of the wire is greater than or equal to the minimum size limit of the wire, the wire contacts the soft conductive members to form an electrical connection, so that the soft conductive members, the wire, and the soft conductive probe are electrically connected to form a third conductive loop; wherein, the minimum value alarm is connected to the third conductive loop.

[0013] 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.

[0014] In one embodiment, it includes two of the ring plate members; wherein, the first ring plate member and the second ring plate member are respectively located on the front and back sides of the circuit board member; the first conductive strip of the first ring plate member is electrically connected to the external power supply, and the bending alarm is connected to the first conductive loop of the first ring plate member; the second ring plate member is not electrically connected to the external power supply and no corresponding bending alarm is provided; wherein, the size limit plate assembly is arranged between the first ring plate member and the circuit board member.

[0015] In one embodiment, it further includes a housing; a hollow hole for the wire to pass through is provided in the middle of the housing of the housing, and the inner diameter of the hollow hole is greater than the maximum size limit; the bending alarm, the maximum value alarm, and the minimum value alarm are alarm lights; a bending alarm window and a lamp installation area for installing the maximum value alarm and the minimum value alarm are provided on the housing of the housing; wherein, the position of the bending alarm window corresponds to that of the bending alarm.

[0016] In one embodiment, the housing of the housing, the first plate body, the second plate body, the third plate body, and the fourth plate body are made of electrically insulating materials.

[0017] Based on the above, compared with the prior art, the present application has the following beneficial effects: The self-checking device for quickly detecting wires has a simple structure, good stability, cheap and easily available components, and convenient operation. It can accurately and efficiently detect and feedback the bending degree of the wire, realize real-time monitoring of the bending degree of the wire, and give an alarm in real time when the bending degree of the wire is abnormal, which can effectively improve the detection efficiency and product quality.

[0018] Other features and beneficial effects of the present application will be described in the subsequent description, and some of them will become obvious from the description or be understood by implementing the present application. The objectives and other beneficial effects of the present application can be achieved and obtained through the structures specifically pointed out in the description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings; in the following description of the positional relationship of the drawings, unless otherwise specified, the directions shown in the drawings of the components are used as the reference.

[0020] Figure 1 Schematic diagram of the overall structure of the device provided in an embodiment of the present invention Figure 1 ; Figure 2 Schematic diagram of the overall structure of the device provided in an embodiment of the present invention Figure 2 ; Figure 3 Exploded view of the device provided in an embodiment of the present invention; Figure 4 Schematic diagram of the structure of the housing of the device provided in an embodiment of the present invention; Figure 5Partial enlarged view of the fixing groove of the housing of the device provided by an embodiment of the present invention; Figure 6 Schematic structural diagram of the first belt loop plate of the device provided by an embodiment of the present invention; Figure 7 For Figure 6 Partial enlarged view; Figure 8 Schematic structural diagram of the maximum limit plate of the device provided by an embodiment of the present invention; Figure 9 Schematic structural diagram of the minimum limit plate of the device provided by an embodiment of the present invention; Figure 10 Schematic structural diagram of the circuit board of the device provided by an embodiment of the present invention; Figure 11 For Figure 10 Partial enlarged view; Figure 12 Schematic structural diagram of the second belt loop plate of the device provided by an embodiment of the present invention; Figure 13 For Figure 12 Partial enlarged view; Figure 14 Schematic diagram of the working condition of the device provided by an embodiment of the present invention during normal detection; Figure 15 Schematic diagram of the conductive circuit of the device provided by an embodiment of the present invention during normal detection; Figure 16 Schematic diagram of the working condition of the device provided by an embodiment of the present invention when the detected bending degree exceeds the standard Figure 1 ; Figure 17 Schematic diagram of the working condition of the device provided by an embodiment of the present invention when the detected bending degree exceeds the standard Figure 2 ; Figure 18 For Figure 17 Partial enlarged view; Figure 19 Schematic diagram of the conductive circuit of the device provided by an embodiment of the present invention when the detected bending degree exceeds the standard; Figure 20 Schematic diagram of the working condition of the device provided by an embodiment of the present invention when the detected size is too large; Figure 21 Schematic diagram of the conductive circuit of the device provided by an embodiment of the present invention when the detected size is too large; Figure 22 Schematic diagram of the working condition of the device provided by an embodiment of the present invention when the detected size is too small; Figure 23 Schematic diagram of the conductive circuit of the device provided by an embodiment of the present invention when the detected size is too small.

[0021] Reference numerals: 200, wire; 1, housing; 2, first ringed plate member; 3, maximum limit plate member; 4, minimum limit plate member; 5, circuit board member; 6, second ringed plate member; 7, bending alarm window; 8, maximum value alarm; 9, minimum value alarm; 10, hollow hole; 11, fixing groove; 12, positioning ring; 13, fixing insert block; 14, first plate body; 15, positioning semi-empty groove; 16, first card slot; 17, first card plate; 18, first elastic member; 19, first conductive bar; 20, first conductive sheet; 32, bending alarm; 21, third plate body; 22, second conductive bar; 23, fourth plate body; 24, soft conductive member; 25, second plate body; 26, adjustable semi-empty groove; 27, soft conductive probe; 28, second card plate; 29, second card slot; 30, second elastic member. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application; the technical features designed in different implementation manners of the present application described below can be combined with each other as long as they do not conflict with each other; based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] In the description of the present application, it should be noted that all terms used in the present application (including technical terms and scientific terms) have the same meanings as those commonly understood by those of ordinary skill in the art to which the present application belongs, and should not be construed as limiting the present application; it should be further understood that the terms used in the present application should be understood as having meanings consistent with their meanings in the context of this specification and the relevant art, and should not be understood in an idealized or overly formal sense, unless otherwise clearly defined in the present application.

[0024] The present application provides a self-checking device for quickly detecting the wire 200 as Figures 1 - 23 shown in the embodiment: The self-checking device for quickly detecting the wire 200 has a bending degree self-checking function and a size self-checking function, and belongs to a wire size and bending degree detecting device, which is mainly applied to the quality control in the production process of the wire 200 (such as tungsten wire, etc.). Specifically, it includes a bending degree self-checking function module, a size self-checking function module, etc.: 1. Bending degree self-checking function module The camber self-checking module includes a bending alarm 32, a first strip-shaped plate member 2, and a circuit board member 5 located on one side of the first strip-shaped plate member 2.

[0025] Among them, the first strip-shaped plate member 2 includes a first plate body 14, a conductive positioning ring 12, and a first elastic connection structure. A first through hole for a wire 200 to pass through is formed in the middle of the first plate body 14, and a first conductive strip 19 is provided on the wall surface of the first through hole. A first conductive sheet 20 is circumferentially distributed on the outer periphery of the positioning ring 12. The circuit board member 5 includes a second plate body 25 with a second through hole formed in the middle, and a soft conductive probe 27 extending into the second through hole.

[0026] The positioning ring 12 is located in the first through hole, and the positioning ring 12 is fixedly connected to the first plate body 14 through a plurality of the first elastic connection structures circumferentially distributed on its outer periphery. When the positioning ring 12 is in a natural state without external force, the positioning ring 12 is coaxial with the first through hole and the second through hole, and is separated from the first conductive strip 19. When the positioning ring 12 is under the external force of the bent wire 200, its axis can be offset so that the first conductive sheet 20 contacts the first conductive strip 19 to form an electrical connection; the first conductive strip 19 and the soft conductive probe 27 are respectively electrically connected to two poles of an external power supply. The bending alarm 32 is connected to a first conductive loop formed by electrically connecting the first conductive strip 19, the first conductive sheet 20, the wire 200, and the soft conductive probe 27.

[0027] Optionally, the first through hole and the second through hole are circular holes; the positioning ring 12 is a circular ring.

[0028] Specifically, the process of camber detection operation is as follows: As Figure 2 shown, when the positioning ring 12 is in a natural state without external force, 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 loop is disconnected.

[0029] As Figures 14 - 15 shown, when in 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, and 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 loop is disconnected.

[0030] As Figures 16 - 19As shown, when the bending degree of a certain section of the wire 200 is greater than or equal to a certain limit value, when this section of the wire 200 passes through the positioning ring 12, the axis of the positioning ring 12 is offset by the wire 200. At this time, the first elastic connection structure in the offset direction is compressed, and the first elastic connection structure on the side opposite to the offset direction is stretched, so that the first conductive sheet 20 at the offset position contacts the first conductive bar 19 to form an electrical connection. And because the area where the wire 200 passes through the second through hole contacts the soft conductive probe 27, at this time, the positive electrode of the external power supply, the first conductive bar 19, the first conductive sheet 20, the positioning ring 12, the wire 200, the soft conductive probe 27, and the negative electrode of the external power supply are electrically connected to form a first conductive loop; the bending alarm 32 circuit connected to the first conductive loop is triggered to conduct, and the bending alarm 32 gives an alarm. Through the above process, real-time warning of abnormal bending degree is realized.

[0031] 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, and when its axial position remains unchanged and it is expanded outward by an external force to contact the first conductive bar 19, its inner diameter is greater than the maximum size limit of the wire 200.

[0032] The positioning ring 12 is designed to be elastically deformable, that is, it can be elastically expanded, and the size of the positioning ring 12 can be changed, so as to adapt to the extrusion of the wire 200 with a size fluctuating and increasing within a specified range, and ensure that the wire 200 can pass smoothly through the ring. And as Figure 20 shown, when the wire 200 with the maximum size limit passes through the positioning ring 12, after the positioning ring 12 expands, the first conductive sheet 20 still does not contact the first conductive bar 19, avoiding false triggering of the bending degree abnormal alarm due to the situation of too large size, and also facilitating cooperation with the subsequent size self-checking module.

[0033] Optionally, a number of positioning semi-empty grooves 15 are distributed around the outer circumference of the first through hole on the first plate body 14. The notch of the positioning semi-empty groove 15 extends through to the first through hole, and a number of first clamping grooves 16 arranged in parallel are provided on the inner side surface of the positioning semi-empty groove 15; the first elastic connection structure is located in the positioning semi-empty groove 15. Among them, the first elastic connection structure includes a first clamping plate 17 adapted to the first clamping groove 16 and a first elastic member 18; the first clamping plate 17 is clamped and connected with one of the first clamping grooves 16. The head end of the first elastic member 18 is connected to the first clamping plate 17, and its tail end passes through the notch and is fixedly connected to the positioning ring 12, so that the positioning ring 12 is fixedly connected to the first plate body 14 through the first elastic connection structure. Optionally, the positioning ring 12 is detachably connected to the first elastic structure.

[0034] Adopting the above design, 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 value, the wire 200 drives the positioning ring 12 to shift towards one end, the first elastic member 18 is compressed or stretched, and the first conductive sheet 20 in the shifting direction contacts the first conductive bar 19. Through the cooperation of the first card slot 16 and the first clamping plate 17, the position of the first clamping plate 17 can be adjusted, so that the positions of the first elastic members 18 in all directions can be adjusted, thus the orientation of the positioning ring 12 can be finely adjusted. And when it is necessary to replace the positioning ring 12 with a new one of different sizes, the elasticity of the first elastic member 18 and the position of the positioning ring 12 can also be adjusted by adjusting the position of the first clamping plate 17, and the clamping and detachable design is also convenient for the replacement of the first elastic member 18. With the above design, the device has strong applicability and is more convenient to use and operate.

[0035] Optionally, a plurality of first conductive sheets 20 are annularly distributed on the outer periphery of the positioning ring 12, and the tail end of the first elastic member 18 is connected to the first conductive sheet 20; the bending alarm 32 is arranged on the first clamping plate 17 and is electrically connected to the first conductive sheet 20, so that the bending alarm 32 is connected to the first conductive circuit. With the above design, the overall connection structure is more concise and the device is more compact.

[0036] Optionally, a bending alarm 32 is correspondingly arranged for each first conductive sheet 20.

[0037] By designing the first conductive sheets 20 to be evenly annularly distributed, the wire 200 can be monitored in all directions. During specific use, each bending alarm 32 is separately electrically connected to the first conductive sheet 20. If the first conductive sheet 20 in this direction contacts the first conductive bar 19, a first conductive circuit is formed, and the corresponding bending alarm 32 of this circuit will respond. As long as the N first conductive sheets 20 contact the first conductive sheet 20, an independent alarm response can be constructed, so as to monitor all directions of the wire 200 and know which direction is bent.

[0038] Among them, the positioning ring 12 is divided into a conductive area and an insulating area. The position corresponding to each first conductive sheet 20 is the conductive area, and the adjacent conductive areas are separated by the insulating area.

[0039] When implementing the optimized design for multi-directional monitoring, the positioning ring 12 is not entirely conductive. Instead, it is divided into regions (conductive regions and insulating regions). The positioning ring 12 is conductive at the positions corresponding to each conductive sheet, so that a conduction path can be formed between the first conductive sheet 20 in contact with the first conductive bar 19 and the conductive region on the corresponding positioning ring 12, and this conductive region forms a conduction path with the wire 200. On the positioning ring 12, insulating regions are designed between two adjacent conductive regions to make the adjacent conductive regions non-conductive and insulated, preventing the current of the first conductive sheet 20 in contact with the first conductive bar 19 from conducting to the entire positioning ring 12 and causing the bending alarms 32 in all directions to respond.

[0040] Optionally, a plurality of first conductive sheets 20 are evenly distributed around the outer periphery of the positioning ring 12 at equal angles, and the positioning semi-empty groove 15 and the first elastic connection structure are evenly distributed around the outer periphery of the first through hole at equal angles.

[0041] With the above design, it is more convenient to align and adjust the axis of the positioning ring 12, and the bending degree detection of all directions in the same cross-section of the wire 200 is more evenly distributed.

[0042] Optionally, the circuit board member 5 further includes a second elastic connection structure; an adjustable semi-empty groove 26 is provided above the second through hole on the second plate body 25; the soft conductive probe 27 is connected to the adjustable semi-empty groove 26 through the second elastic connection structure. Further optionally, a plurality of second card slots 29 arranged in parallel are provided on the inner side surface of the adjustable semi-empty groove 26; wherein, the second elastic connection structure includes a second card plate 28 adapted to the second card slot 29 and a second elastic member 30; the second card plate 28 is snap-fitted and connected to one of the second card slots 29; the head 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, and the tail end of the soft conductive probe 27 extends into the second through hole.

[0043] With the above-designed second elastic connection structure, the orientation of the soft conductive probe 27 can be adjusted adaptively, improving the flexibility of the device and facilitating use.

[0044] Optionally, the bending alarm 32 is an alarm lamp. Using an alarm lamp makes the warning more intuitive.

[0045] Optionally, the first plate body 14 and the second plate body 25 are made of electrically insulating materials.

[0046] The first plate body 14 and the second plate body 25 are made of electrically insulating materials, improving the safety performance of the device.

[0047] Optionally, the first elastic member 18 and the second elastic member 30 are springs.

[0048] Optionally, the first conductive sheet 20 is a metal block patch. It should be noted that according to the above design concept, other conductive materials can also be used, including but not limited to the embodiments.

[0049] 2. Dimension self-checking function module To avoid problems such as poor accuracy in manual dimension detection and waste of manpower, there are also solutions on the market that use automated equipment to detect the dimensions of the wire 200. However, currently in production, for the control of the dimensions of the wire 200, the photosensitive system in the machine is generally used to identify the dimensions, and its detection accuracy is not good, with a certain error. Due to the poor accuracy, it is necessary to additionally use the form of batch sampling inspection to further detect the products in production. The detection results are greatly affected by the equipment stability and personnel operation, making it still difficult to accurately identify whether the abnormal product parameters meet the standards. In addition, the existing detection machines prepared from components such as the photosensitive system have high equipment complexity and are not easy to repair, and the component prices are relatively expensive. Therefore, the embodiment of the present application also relates to a dimension self-checking function module.

[0050] Self-checking of the maximum dimension limit: The dimension self-checking function module includes a maximum value alarm 8 and a dimension limit plate assembly. The dimension limit plate assembly includes a maximum limit plate member 3. The maximum dimension detection and monitoring are realized by the cooperation of the maximum limit plate member 3, the circuit board member 5, and the maximum value alarm 8: Among them, the maximum limit plate member 3 includes a third plate body 21. A third through hole for the wire 200 to pass through is formed in the middle of the third plate body 21, and a second conductive strip 22 is provided on the wall surface of the third through hole to form a conductive hole. The inner diameter of the conductive hole is equal to the maximum dimension limit of the wire 200; the two poles of an external power supply are respectively electrically connected to the second conductive strip 22 and the soft conductive probe 27. When the dimension of the wire 200 reaches the maximum dimension 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 loop. Among them, the maximum value alarm 8 is connected to the second conductive loop. Optionally, both the second through hole and the third through hole are circular holes, and the second through hole and the third through hole are coaxial.

[0051] Specifically, the size of the second conductive strip 22 and the circle projected by the third through hole (i.e., the conductive hole) limit the maximum size allowed for the wire 200. The wire that exceeds the maximum limit cannot pass through the device. Among them, the normal state of the device detection operation process is: Such as Figures 14 - 15As shown, when in use, with the wire 200 in a normal size state, the wire 200 continuously passes through the third through-hole. The wire 200 is of 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, and the conductive loop is disconnected. The maximum value alarm 8 does not respond.

[0052] As Figures 20 - 21 shown, when the size of the wire 200 reaches the maximum size limit value, the outer wall of the wire 200 just contacts the second conductive strip 22, and since the area where the wire 200 passes through the second through-hole contacts the soft conductive probe 27, at this time, the positive pole of the external power supply, the second conductive strip 22, the wire 200, the soft conductive probe 27, and the negative pole of the external power supply are electrically connected to form a second conductive loop; triggering the maximum value alarm 8 connected to the second conductive loop, the circuit is turned on, and the maximum value alarm 8 gives an alarm. Through the above process, real-time warning of the abnormal size reaching the maximum limit value is realized.

[0053] Optionally, a plurality of the second conductive strips 22 are annularly arranged inside the third through-hole; each of the second conductive strips 22 is electrically connected to one level of the external power supply to form a second conductive loop, wherein a maximum value alarm 8 is electrically connected to each second conductive loop.

[0054] By arranging the second conductive strips 22 in a uniform annular distribution, all directions of the wire 200 can be monitored. Specifically, when in use, each second conductive strip 22 is independently connected to the positive pole of the external power supply to form an independent conductive loop, that is, each second conductive strip 22 constructs a second conductive loop of the second conductive strip 22, the wire 200, the soft conductive probe 27, and the negative pole of the external power supply. N second conductive strips 22 construct N second conductive loops, and each second conductive loop is correspondingly connected to a maximum value alarm 8, so as to separately monitor all directions of the wire 200. If the size of the wire 200 in a certain direction reaches the maximum limit value, the maximum value alarm 8 corresponding to that direction will respond and give an alarm at this time. If the size of the wire 200 is normal and there is no overlimit in all directions, during the operation of the device, all maximum value alarms 8 will not respond.

[0055] Optionally, the second conductive strip 22 is embedded in the inner wall of the third through-hole.

[0056] Optionally, the maximum value alarm 8 is an alarm lamp. Using an alarm lamp makes the warning more intuitive.

[0057] Optionally, the external size of the third plate body 21 is slightly smaller than that of the first clamping plate 17.

[0058] Self-check of the minimum size limit: It includes a minimum value alarm 9; the size limit plate assembly further includes a minimum limit plate member 4. The size minimum value detection and monitoring are realized through the cooperation of the minimum limit plate member 4, the circuit board member 5, and the minimum value alarm 9: The minimum limit plate member 4 includes a fourth plate body 23. A fourth through hole is formed in the middle of the fourth plate body 23, and a plurality of soft conductive members 24 are distributed around the inner ring of the fourth through hole. The head end of the soft conductive member 24 is connected to the wall surface of the fourth through hole, and its tail end points to the axis of the fourth through hole, so that when the wire 200 with a size equal to the minimum size limit passes through the fourth through hole, the tail end of the soft conductive member 24 just contacts the wire 200.

[0059] Among them, the two poles of the external power supply are respectively electrically connected to the soft conductive member 24 and the soft conductive probe 27. 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 soft conductive member 24 to form an electrical connection, so that the soft conductive member 24, the wire 200, and the soft conductive probe 27 are electrically connected to form a third conductive circuit; among them, 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 the second through hole, the third through hole, and the fourth through hole are coaxial.

[0060] Specifically, as Figures 14 - 15 shown, during use, when the size of the wire 200 is normal, 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, at this time, the wire 200 contacts the soft conductive member 24 to form an electrical connection (when the wire 200 with a size equal to the minimum size limit, the tail end of the soft conductive member 24 just contacts the wire 200), and since the area where the wire 200 passes through the second through hole contacts the soft conductive probe 27, at this time, the positive pole of the external power supply, the soft conductive member 24, the wire 200, the soft conductive probe 27, and the negative pole of the external power supply are electrically connected to form a third conductive circuit; the minimum value alarm 9 connected to the third conductive circuit is triggered to conduct the circuit, and the minimum value alarm 9 correspondingly indicates no abnormality.

[0061] As Figures 22 - 23 shown, when the size of the wire 200 is less than the minimum size limit, the outer wall of the wire 200 does not contact the soft conductive member 24, the third conductive circuit is disconnected, the minimum value alarm 9 is disconnected, and the minimum value alarm 9 does not respond to warn the operator. Through the above process, real-time warning of abnormalities with a size lower than the minimum limit is realized.

[0062] Optionally, each soft conductive member 24 is respectively electrically connected to one level of the external power supply to form one of the third conductive circuits, and among them, the minimum value alarm 9 is electrically connected to each of the third conductive circuits.

[0063] By designing the uniform annular distribution of the soft conductive members 24, monitoring can be carried out in all directions of the wire 200. During specific use, each soft conductive member 24 can be independently connected to the positive pole of an external power supply to form an independent conductive loop, that is, each soft conductive member 24 constructs a conductive loop including the soft conductive member 24, the wire 200, the soft conductive probe 27, and the negative pole of the external power supply. N soft conductive members 24 construct N third conductive loops, and each third conductive loop is correspondingly connected to a minimum value alarm 9, so as to separately monitor all directions of the wire 200.

[0064] If the size of a certain direction of the wire 200 is less than the minimum limit value, the minimum value alarm 9 corresponding to this direction will not respond, and an alarm will be issued at this time. If the size of the wire 200 is normal in all directions, all the minimum value alarms 9 will respond during the operation of the device.

[0065] Optionally, a plurality of the soft conductive members 24 are annularly distributed inside the fourth through hole. The leading ends of the plurality of soft conductive members 24 are connected to the wall surface of the fourth through hole, and their trailing ends extend along the radial direction of the fourth through hole and point to the axis of the fourth through hole, so that the trailing ends of the plurality of soft conductive members 24 enclose a circle. With such a design, the inner diameter of the circle enclosed by the trailing ends of the soft conductive members 24 is exactly equal to the minimum limit value of the size.

[0066] Optionally, a plurality of the soft conductive members 24 are equally angularly annularly distributed inside the fourth through hole.

[0067] Optionally, the second plate body 25, the third plate body 21, and the fourth plate body 23 are made of electrically insulating materials.

[0068] Optionally, the maximum value alarm 8 is an alarm lamp. Using an alarm lamp makes the warning more intuitive.

[0069] Optionally, the soft conductive member 24 is a conductive carbon brush; it should be noted that according to the above design concept, other soft conductive materials can also be used, including but not limited to the embodiment solutions.

[0070] 3. Other auxiliary modules: Stable module design: Optionally, it includes two of the ring plate members, that is, it also includes a second ring plate member 6. Among them, the first ring plate member 2 and the second ring plate member 6 are respectively located on the front and back sides of the circuit board member 5. The first conductive strip 19 of the first ring plate member 2 is electrically connected to the external power supply, and the bending alarm 32 is connected into the first conductive loop of the first ring plate member 2. The second ring plate member 6 is not electrically connected to the external power supply, and no corresponding bending alarm 32 is provided. Among them, the size limit plate assembly is arranged between the first ring plate member 2 and the circuit board member 5.

[0071] The second ringed plate member 6 is basically similar in structure to the first ringed plate member 2, with the differences being that: on the first clamping plate 17 within the positioning semi-empty groove 15 in the first ringed plate member 2, there is a bending alarm 32, and the first conductive strip 19 is electrically connected to the external power supply. The second ringed plate member 6 does not externally connect a circuit to form a conductive loop. At the same time, its first clamping plate 17 is an insulating first clamping plate 17, and its function is to stably keep the wire 200 passing through the device without tilting downward.

[0072] In this embodiment, the size limit plate assembly is arranged between the first ringed plate member 2 and the circuit board member 5. The second ringed plate member 6 is respectively located at the rear side of the circuit board member 5. The first ringed plate member 2, the maximum limit plate member 3, and the minimum limit plate member 4 are connected to the external power supply in parallel. When the wire 200 is built in, in specific cases, each forms a complete loop. Among them, the front and rear order of the maximum limit plate member 3 and the minimum limit plate member 4 can be adaptively adjusted without excessive restrictions.

[0073] Housing 1 design: Optionally, it further includes a housing 1. A hollow hole 10 for the wire 200 to pass through is opened in the middle of the housing of the housing 1, and the inner diameter of the hollow hole 10 is greater than the maximum size limit.

[0074] In the housing 1, the hollow hole 10 is the rated maximum size hole of the device, which limits the maximum size of the wire 200 that the device can measure.

[0075] In the overall device of this embodiment, the major plate members enter the interior of the housing 1 in a nested form in sequence to form a whole. The entire device is driven by an external power supply. The circuit board member 5 is connected to the negative pole of the power supply, and the first ringed plate member 2, the maximum limit plate member 3, and the minimum limit plate member 4 are connected to the positive pole of the external power supply in parallel. Its overall structure is simple and compact, facilitating installation. Each plate member is also easy to replace and combine, and the device has high flexibility and strong adaptability in use.

[0076] Optionally, the bending alarm 32, the maximum value alarm 8, and the minimum value alarm 9 are alarm lights; on the housing of the housing 1, there is a bending alarm viewing window 7 and a lamp installation area for installing the maximum value alarm 8 and the minimum value alarm 9; among them, the position of the bending alarm viewing window 7 corresponds to that of the bending alarm 32.

[0077] Designing the bending alarm viewing window 7 and the lamp installation area facilitates intuitive observation of the monitoring situation.

[0078] Optionally, the housing of the housing 1 is made of an electrically insulating material.

[0079] Optionally, a fixing groove 11 is provided on the inner side of the housing 1 of the outer shell. A fixing insert block 13 that matches the fixing groove 11 is provided on the outer side of the belt-loop plate member. Optionally, the fixing groove 11 is trapezoidal.

[0080] As Figure 3 and 5 shown in -6; the fixing grooves 11 are located at the left and right ends of the inner side of the housing and are trapezoidal. The fixing insert blocks 13 correspond to the fixing grooves 11 and can hold the belt-loop plate member in place without movement, better stabilizing the internal structure of the device and preventing shaking. During the operation of the first belt-loop plate member 2, since the first plate body 14 is not conductive, the entire plate is in an open circuit state.

[0081] Optionally, a glass sheet is provided on the bending alarm window 7. The glass sheet can protect the internal structure from contamination, and through the glass sheet, it is possible to observe whether the bending degree of the wire 200 meets the requirements.

[0082] Based on the above overview of the working processes of each module, the working response phenomena and response effects of the self-checking device for quickly detecting the wire 200 are as follows: Main effect 1: Pass the wire 200 with qualified dimensions and bending degree through this device to complete the inspection of the device's operation. The operation of the device is as Figures 14 - 15 shown. During normal operation of the device, the wire 200 serves as a conductor and is connected to each channel at the minimum limit plate member 4, the circuit board member 5, and the external power supply to form a circuit, causing all the minimum value alarms 9 on the housing 1 to light up and all the other alarm lights to go out.

[0083] Main effect 2: Pass the wire 200 with undersized dimensions and qualified bending degree through this device to complete the inspection of the device's operation. The operation of the device is as Figures 22 - 23 shown. During normal operation of the device, the wire 200 serves as a conductor and is not connected to any components, so no circuit can be formed. At this time, all the indicator lights of this device go out.

[0084] Main effect 3: Pass the wire 200 with oversized dimensions and qualified bending degree through this device to complete the inspection of the device's operation. The operation of the device is as Figures 20 - 21 shown. During normal operation of the device, the wire 200 serves as a conductor and is connected to each channel at the minimum limit plate member 4, each channel at the maximum limit plate member 3, each channel at the circuit board member 5, and the external power supply to form a circuit, causing both the maximum value alarm 8 and the minimum value alarm 9 on the housing 1 to light up and all the other alarm lights to go out.

[0085] Main effect 4: Pass the wire 200 with normal size and bent upward through this device to complete the inspection of the device's operation. The operation of the device is as shown in Figures 16 - 19 shown. During the normal operation of the device, the wire 200 is connected to each channel at the minimum limit plate 4, the channel at the upper end of the first loop plate 2, each channel at the loop plate 5 and the external power supply as a conductor to build a loop, so that all the minimum value alarms 9 at the housing 1 light up, and the bending alarm 32 at the upper end of the loop plate lights up.

[0086] Summary: The implementation method of this device is to utilize the conductive characteristic of the wire 200 to build a loop between the wire 200 and the device through the external power supply to complete the detection of the size and bending degree. For the requirements of the device under the detection conditions, the main technical indicators satisfied by the solution of this application embodiment are shown in Table 1.

[0087] Table 1 Response of the device technical indicators of the solution of this application

[0088] It should be noted that: In this embodiment, each plate body adopts the insulating material PP, which is light in weight and low in price, and is beneficial to improving the use convenience of the device. According to the above design concept, other materials can also be used, including but not limited to the solution of the embodiment.

[0089] In this embodiment, 8 first conductive strips 19 are arranged at equal angles, so 8 bending alarms 32, 8 first elastic connection structures and 8 bending alarm windows 7 are correspondingly designed to form 8 first conductive paths. Similarly, 8 second conductive strips 22 are arranged at equal angles, so 8 maximum value alarms 8 and 8 lamp distribution areas are correspondingly designed to form 8 second conductive paths. 8 soft conductive parts 24 are arranged at equal angles, so 8 minimum value alarms 9 and 8 lamp distribution areas are correspondingly designed to form 8 third conductive paths. According to the above design concept, the quantity of the above components can be adaptively adjusted according to requirements, including but not limited to the solution of the embodiment.

[0090] In addition, for the combination of each plate part, the plate parts with required functions can be selected according to requirements. For example, if only the bending degree is to be measured, the loop plate and the loop plate 5 can be combined, including but not limited to the solution where all the modules in this embodiment are combined into one. The overall operation flexibility is strong.

[0091] In addition, conduct experimental verification on the monitoring effect of the self-checking device for quickly detecting wires provided in the embodiment: Embodiment 1: To study the detection effect of the device on the size of tungsten materials, tungsten materials with a diameter of 20 cm and a length of 5 m were selected. The size index of the tungsten materials was ±1 cm, and the straightness index was <1 cm (5 m). Qualified tungsten materials were tested, and the important parameters of some parts in the device are shown in Table 2.

[0092] Table 2 Important parameters of some parts in the device

[0093] During the operation of the device, only the minimum value alarms at the outer shell all lit up. Compared with the actual situation, the detection result of the device was normal.

[0094] Example Two: To study the detection effect of the device on the size of tungsten materials, tungsten materials with a diameter of 26 cm and a length of 8 m were selected. The size index of the tungsten materials was ±1 cm, and the straightness index was <1 cm (8 m). Qualified tungsten materials were tested, and the important parameters of some parts in the device are shown in Table 3.

[0095] Table 3 Important parameters of some parts in the device

[0096] During the operation of the device, only the minimum value alarms at the outer shell all lit up. Compared with the actual situation, the detection result of the device was normal.

[0097] Example Three: To study the detection effect of the device on the size of tungsten materials, tungsten materials with a diameter of 26 cm and a length of 8 m were selected. The size index of the tungsten materials was ±1 cm, and the straightness index was <1 cm (8 m). Tungsten materials with a diameter of 26 cm and a straightness of 1.5 cm in the first half region and a diameter of 27.5 cm and a straightness of 0.3 cm in the second half region were tested. The important parameters of some parts in the device are shown in Table 4.

[0098] Table 4 Important parameters of some parts in the device

[0099] During the operation of the device, during the detection of the first half region, all the minimum value alarms at the outer shell lit up. When the abnormal position was reached, the straightness alarm on the first clamping plate at the upper left end lit up; during the detection of the second half region, all the minimum value alarms at the outer shell lit up. When the abnormal position was reached, all the maximum value alarms lit up. Compared with the actual situation, the detection result of the device was normal.

[0100] Comparison of the device of this application with other existing devices: Comparative Example One: Patent 1 (CN113218292B) discloses a capacitive sensor for dimension detection, and its solution is as follows: The dimension detection device includes a battery, a trackpad assembly, and a sensing strip. The battery is located inside the computer case, the trackpad assembly is located in an opening defined in the keyboard surface, and the sensing strip is used to connect the connector to the trackpad assembly. By measuring the change in capacitance, the dimension can be measured. The capacitive sensor involved in this solution can be positioned to detect the dimensional change of an object.

[0101] Compared with Comparative Patent 1, the solution of the embodiment of the present application can limit the minimum and maximum limits required for batch production of tungsten material dimensions, give an alarm in time for defective products that appear during the production process, improve the accuracy of product measurement, and provide a new method for quality control in industrial mass production. In addition, the device of the solution of the present application can also perform real-time detection of the degree of curvature.

[0102] Comparative Example 2: Patent 2 (CN111025881B) discloses a dimension detection machine, and its solution is as follows: The device includes a base, a moving mechanism, a detection mechanism, and a fixing mechanism. This patent sets 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 clamping jaws and the limit shaft in the fixing mechanism of this patent, it can adapt to different types of watch cases for fixing.

[0103] Compared with Comparative Patent 2, the solution of the embodiment of the present application can, in addition to performing dimension detection, also perform curvature detection, and the entire device structure is composed of multiple components, which can be replaced according to requirements, with stronger operability and higher measurement accuracy.

[0104] Comparative Example 3: Patent 3 (CN114166127B) discloses a steel bar dimension detector, and its solution is as follows: The device includes a lens barrel, a main lens barrel, an optical lens group with a fixed focal length fixedly installed in the main lens barrel, a driving assembly connected between the main lens barrel and the fixed lens barrel for driving the main lens barrel to reciprocate 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 adopts the method of moving the overall main lens barrel to keep the system magnification unchanged, and improves the measurement accuracy by using the object-side telecentric optical path to achieve real-time measurement.

[0105] Compared with Comparative Patent 3, the solution of the embodiment of the present application can, in addition to performing dimension detection, also perform curvature detection, the entire device structure is composed of multiple components, which can be replaced according to requirements, with stronger operability, and the components are cheaper and easier to obtain. The overall optical components of Comparative Patent 3 are numerous, with high complexity and relatively high cost.

[0106] In summary, the self-inspection device for quickly detecting wire rods provided by the embodiment of the present application has the following advantages and effects: 1. The device provided by the embodiment of the present application includes two modules: size detection and curvature detection. The two modules can be independently controlled respectively, enabling synchronous detection to achieve the effect of real-time detection of abnormal products. Moreover, different functional board components can be assembled and combined according to requirements.

[0107] 2. The size detection in the device provided by the embodiment of the present application consists of two size modules. The small-size module controls the minimum value, and the large-size module controls the maximum value. Through real-time monitoring, if an abnormal situation (the size is too large or too small) occurs, the production line equipment can be warned to stop urgently; 3. The curvature detection in the device provided by the embodiment of the present application is composed of a first elastic connection structure (composed of a first elastic member and a first clamping plate), which improves the stability of the device and at the same time ensures that the device can still recover its state after being used multiple times. And through the cooperation of the first clamping plate and the first clamping groove, it is also convenient for the adjustment and replacement of the elastic member and the positioning ring.

[0108] 4. The device provided by the embodiment of the present application has a simple structure. By replacing some parts (replacing different board components or conductive parts inside the board, such as soft conductive parts, etc.), it can achieve the detection of different sizes. The driving current of the device is small, the volume is small, and the construction material uses PP material except for the conductive part, with good insulation effect, light weight, and is convenient for carrying and use.

[0109] In summary, the solution of the embodiment of the present application restricts the wire size through outer frames of different shapes, and uses a movable frame fixing structure to restrict the curvature. When the multi-channel warning lights light up simultaneously, it indicates that the product is abnormal, and timely feedback is made on the abnormal product situation, so as to achieve the effect of improving the finished product quality.

[0110] The solution of the present application optimizes the device by simplifying the device structure to improve the detection efficiency and enhance the feedback effect, so that the self-checking device for quickly detecting wire has the advantages of simple structure, good stability, cheap and easily available components, convenient operation, and can accurately and efficiently detect and feedback the size and curvature information of the wire, realizing real-time monitoring of the size and curvature of the wire, and giving real-time alarms for abnormal size and curvature of the wire, which can effectively improve the detection efficiency and product quality.

[0111] It should be noted that: The embodiment of the present application verifies that it can be applied to tungsten material detection. However, according to the above design concept, it can be widely applicable to the detection of conductive filamentous, linear, and strip products, including but not limited to tungsten wires. The novel self-checking device for quickly detecting wire provided by the solution of the present application can lay a foundation for real-time monitoring of the size and curvature of conductive materials during the mass production process, and can also provide a theoretical basis for the detection methods of such detection devices.

[0112] In addition, those skilled in the art should understand that although there are many problems in the prior art, each embodiment or technical solution of the present application can be improved in only one or several aspects, and it is not necessary to solve all the technical problems listed in the prior art or the background art at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be used as a limitation to that claim.

[0113] Although terms such as positioning ring, fixed insertion block, first plate body, positioning semi-empty groove, first card slot, first card board, first elastic member, first conductive strip, first conductive sheet, etc. are used more frequently in this article, the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present application; interpreting them as any additional limitation is contrary to the spirit of the present application; the terms "first", "second", etc. (if any) in the specification, claims and the above-mentioned drawings of the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0114] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A self-checking device for quickly detecting wire rods, characterized in that: It includes a housing (1), a bending alarm (32), a ringed plate member, and a circuit board member (5) located on one side of the ringed plate member; The ringed plate member includes a first plate body (14), a conductive positioning ring (12), and a first elastic connection structure; a first through hole for a wire (200) to pass through is formed in the middle of the first plate body (14), and a first conductive strip (19) is provided on the wall surface of the first through hole; a first conductive sheet (20) is circumferentially arranged on the outer periphery of the positioning ring (12); The circuit board member (5) includes a second plate body (25) with a second through hole formed in the middle, and a soft conductive probe (27) extending into the second through hole; Wherein, the positioning ring (12) is located in the first through hole, and the positioning ring (12) is fixedly connected to the first plate body (14) through a plurality of the first elastic connection structures circumferentially arranged on its outer periphery; when the positioning ring (12) is in a natural state without external force, the positioning ring (12) is separated from the first conductive strip (19); when the positioning ring (12) is under the external force of a bent wire, its axis can be offset so that the first conductive sheet (20) contacts the first conductive strip (19) to form an electrical connection; The first conductive strip (19) and the soft conductive probe (27) are respectively electrically connected to two poles of an external power supply; the bending alarm (32) is connected to a first conductive loop formed by electrically connecting the first conductive strip (19), the first conductive sheet (20), the wire (200), and the soft conductive probe (27).

2. The self-checking device for quickly detecting wire rods according to claim 1, wherein: The first through hole and the second through hole are circular holes; The positioning ring (12) is a circular ring; The positioning ring (12) is coaxial with the first through hole and the second through hole.

3. The self-checking device for quickly detecting wire rods according to claim 2, wherein: 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, and when its axis 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 dimension limit of the wire (200).

4. The self-checking device for quickly detecting wire rods according to claim 1, wherein: A plurality of positioning semi-empty grooves (15) are circumferentially arranged on the first plate body (14) outside the first through hole; the notch of the positioning semi-empty groove (15) extends through to the first through hole, and a plurality of first clamping grooves (16) arranged in parallel are provided on the inner side surface of the positioning semi-empty groove (15); the first elastic connection structure is located in the positioning semi-empty groove (15); wherein, the first elastic connection structure includes a first clamping plate (17) adapted to the first clamping groove (16) and a first elastic member (18); the first clamping plate (17) is clamped and connected to one of the first clamping grooves (16); the head end of the first elastic member (18) is connected to the first clamping plate (17), and its tail end passes through the notch and is fixedly connected to the positioning ring (12), so that the positioning ring (12) is fixedly connected to the first plate body (14) through the first elastic connection structure; And / or, the circuit board member (5) further includes a second elastic connection structure; an adjustable semi-empty groove (26) is formed above the second through hole on the second plate body (25); the soft conductive probe (27) is connected to the adjustable semi-empty groove (26) through the second elastic connection structure.

5. The self-checking device for quickly detecting wire rods according to claim 1, characterized in that: It further includes a maximum value alarm (8) and a size limit plate assembly; the size limit plate assembly includes a maximum limit plate member (3); The circuit board member (5) includes a second plate body (25) with a second through hole formed in the middle and a soft conductive probe (27) extending into the second through hole; the maximum limit plate member (3) includes a third plate body (21); a third through hole for the wire (200) to pass through is formed in the middle of the third plate body (21), and a second conductive strip (22) is provided 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 of the wire (200); Two poles of an external power supply are respectively electrically connected to the second conductive strip (22) and the soft conductive probe (27). 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 loop; Wherein, the maximum value alarm (8) is connected into the second conductive loop.

6. The self-checking device for quickly detecting wire rods according to claim 5, wherein: It further includes a minimum value alarm (9); the size limit plate assembly further includes a minimum limit plate member (4); The minimum limit plate member (4) includes a fourth plate body (23); a fourth through hole is formed in the middle of the fourth plate body (23), and a plurality of soft conductive members (24) are distributed around the inner ring of the fourth through hole; the head ends of the soft conductive members (24) are connected to the wall surface of the fourth through hole, and their tail ends point to the axis of the fourth through hole, so that when the wire (200) with a size equal to the minimum size limit passes through the fourth through hole, the tail ends of the soft conductive members (24) just contact the wire (200); Wherein, two poles of an external power supply are respectively electrically connected to the soft conductive member (24) and the soft conductive probe (27). 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 soft conductive member (24) to form an electrical connection, so that the soft conductive member (24), the wire (200), and the soft conductive probe (27) are electrically connected to form a third conductive loop; Wherein, the minimum value alarm (9) is connected into the third conductive loop.

7. The self-checking device for quickly detecting wire rods according to claim 6, wherein: 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.

8. The self-checking device for quickly detecting wire rods according to claim 5, characterized in that: It includes two of the ringed plate members; wherein, the first ringed plate member (2) and the second ringed plate member (6) are respectively located on the front and back sides of the circuit board member (5); The first conductive strip (19) of the first band plate member (2) is electrically connected to the external power supply, and the bending alarm (32) is connected to the first conductive loop of the first band plate member (2); the second band plate member (6) is not electrically connected to the external power supply and no corresponding bending alarm (32) is provided; Wherein, the dimension limit plate assembly is arranged between the first band plate member (2) and the loop plate member (5).

9. The self-checking device for quickly detecting wire according to claim 6, wherein: It further includes a housing (1); A hollow hole (10) for the wire (200) to pass through is formed in the middle of the housing of the housing (1), and the inner diameter of the hollow hole is larger than the maximum dimension limit; The bending alarm (32), the maximum value alarm (8), and the minimum value alarm (9) are alarm lights; a bending alarm window (7) and a lamp installation area for installing the maximum value alarm (8) and the minimum value alarm (9) are provided on the housing of the housing (1); wherein, the position of the bending alarm window (7) corresponds to that of the bending alarm (32).

10. The self-checking device for quickly detecting wire according to claim 9, characterized in that: The housing (1) of the housing, the first plate body (14), the second plate body (25), the third plate body (21), and the fourth plate body (23) are made of electrically insulating materials.

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