Steel wire breakage detection device, system and method in steel cord electroplating process

Abstract

The invention provides a steel wire breakage detection device and system in a steel cord electroplating process, the detection device comprises a pinch roller mechanism, a pinch roller mechanism, a fixing rod, a photoelectric sensing assembly and an alarm assembly, the steel wire breakage in the electroplating process is detected and alarmed in a real-time detection mode, an operator is reminded to carry out intervention treatment in time, and the production efficiency is improved. And emergency shutdown, production halt and damage caused by the serious situation of multi-strand wire breakage caused by single-strand wire breakage are avoided. Meanwhile, a plurality of detection devices can be arranged side by side and mounted on the same fixing rod, and the plurality of steel wire breakage detection devices respectively and independently correspond to the steel wire at each wire position to perform wire breakage detection on the penetrated steel wire. And for the found wire breaking condition, the broken steel wire is drawn out rapidly, the stability of a subsequent electroplated coating is improved, the wire twisting phenomenon in production is prevented, the production safety is improved, meanwhile, emergency shutdown and production halt caused by wire breaking and twisting are reduced, waste wires are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel cord production, and in particular to a wire breakage alarm in an electroplating process, and specifically to a wire breakage detection device, system and wire breakage detection method in a steel cord electroplating process. Background Art

[0002] The steel cord production system involves multiple processes such as pretreatment (removal of oxide layer and impurities), dry drawing, electroplating, wet drawing, phosphating, stranding, stress relief, and pre-deformation. The dry drawing process uses high-quality high-carbon steel as the raw material, processes it into a wire rod of a certain diameter, and then gradually draws the wire rod to the required steel wire specifications through multiple precision drawing processes, namely cold drawing technology. The steel wires of different diameters drawn by the dry drawing process are smooth wires. After the process links of heat treatment-pickling-alkaline copper plating-acid zinc plating-heating tempering-induction thermal diffusion in the electroplating process, the steel wire with troostite as the matrix and uniform and dense brass plating is obtained. Then the brass-plated steel wire is treated in a phosphoric acid solution to remove the trace zinc oxide layer and form a phosphating film with a microporous structure. In the subsequent wet drawing process, the single wire is twisted into steel cords of various structures through a twisting process. Multiple sets of twisting devices are used to make the steel wire undergo a certain plastic deformation to eliminate the residual torsion and residual stress generated during elastic deformation. Finally, the strands are pre-deformed to form certain corrugations, and the breaking elongation of the finished cord is changed by adjusting the deformation amount to obtain the finished cord.

[0003] In the entire production process, the stability of the product quality in the electroplating process will have a direct impact on the drawing and twisting of the wet drawing and stranding processes. The stability of copper and zinc plating in the electroplating process is particularly important. In the current typical design of a production line, at least 40 lines are running at the same time, and the interval between each steel wire is about 2cm. Therefore, when the electroplated steel wire has a loose solder joint and causes wire breakage, if it is not discovered in time, the broken steel wire will contact the adjacent steel wire in the copper plating tank. Since the electroplating process is an electrification process, the contact of the steel wire will cause current fluctuations, resulting in unstable coating of the adjacent steel wire, affecting product quality, causing the rope to cause the steel wire to twist, causing other steel wires to break. If the broken steel wire cannot be pulled out in time, it will cause large-scale twisting of the steel wire in the entire tank in severe cases. The process site is unsafe and the entire cord production process needs to be stopped and stopped. Summary of the invention

[0004] In view of the defects and shortcomings of the prior art, the first aspect of the purpose of the present invention is to provide a device for detecting broken steel wires in the electroplating process of steel cord, which adopts real-time detection to realize the detection and alarm of broken steel wires in the electroplating process of steel cord production, and can remind the operator to intervene in time when broken wires occur, so as to avoid the serious situation that a single broken wire causes multiple broken wires, resulting in emergency shutdown and damage.

[0005] The first aspect of the purpose of the present invention is to provide a device for detecting broken wires in the steel cord electroplating process, which can issue an early warning signal based on the real-time detection results of the photoelectric sensor component, prompting the operator to intervene in time to avoid the serious situation of single-strand broken wires and multiple-strand broken wires caused by a single-strand broken wire, resulting in emergency shutdown and damage.

[0006] The second aspect of the purpose of the present invention also provides a wire breakage detection system in the steel cord electroplating process, wherein a plurality of wire breakage detection devices are arranged side by side and installed on the same fixed rod, and the plurality of wire breakage detection devices independently correspond to the steel wires at each line position, and perform wire breakage detection on the passing steel wires.

[0007] According to a third aspect of the present invention, a method for detecting broken steel wires in a steel cord electroplating process is provided to achieve real-time detection of broken steel wires in the electroplating process during a continuous production process of the cord.

[0008] As an embodiment, a device for detecting broken steel wires in a steel cord electroplating process according to the first aspect of the present invention comprises:

[0009] The pressing wheel mechanism is configured to cooperate with the steel wire passing through the bottom thereof and maintain an upward movement tendency due to the pre-tightening force provided by the steel wire during the movement of the steel wire;

[0010] A sensing main body rod, wherein a first end of the sensing main body rod is arranged to be fixedly connected to the pressing wheel mechanism, and a sensing portion is formed on an opposite second end thereof;

[0011] A fixed rod, the central axis of which is parallel to the rotation axis of the pressing wheel mechanism, and the sensing portion of the sensing main rod is rotatably mounted on the fixed rod, with the central axis of the fixed rod as the rotation axis;

[0012] A photoelectric sensor assembly, the photoelectric sensor assembly having at least one transmitting part and at least one receiving part; relative to the position and angle direction of the fixing rod, the installation position of the at least one transmitting part is fixed and faces the sensing part, and the at least one receiving part is arranged on the surface of the sensing part and faces the at least one transmitting part; and

[0013] An alarm component, electrically connected to the photoelectric sensor component;

[0014] Among them, the at least one transmitting part is configured to emit a light signal toward the surface of the sensing part, and the at least one receiving part is configured to receive the light signal and output an electrical signal to the alarm component, and the alarm component performs a broken wire alarm according to the electrical signal output by the at least one receiving part.

[0015] As an optional implementation, the pressing wheel mechanism includes a pressing wheel seat, a first bearing, a first pressing wheel and a pressing wheel cover; the steel wire moves from the bottom of the first pressing wheel;

[0016] The first side surface of the first pressure wheel is mounted on the pressure wheel seat through a first bearing, the pressure wheel cover is mounted on the second side surface of the first pressure wheel, and a first bolt passes through the pressure wheel cover and the first pressure wheel and is screwed into the side of the pressure wheel seat to limit the lateral displacement of the first pressure wheel and can only rotate freely in the circumferential direction relative to the pressure wheel seat.

[0017] As an optional embodiment, the pressure wheel seat includes an L-shaped sheet body, the first sheet of which is provided with a cylindrical fixing portion with a perforation extending upward from the surface thereof, and is used to be fastened and fixed with the first end of the sensing body rod by a second bolt;

[0018] The second sheet is perpendicular to the first sheet and is provided with a bearing fixing portion with an axial hole extending upward from its surface. The first bearing is sleeved on the bearing fixing portion, and the first bolt passes through the pressure wheel cover and the first pressure wheel and is screwed into the axial hole.

[0019] As an optional embodiment, the sensing part includes a cylindrical rotating main body and an arc-shaped sensing sheet connected to the rotating main body;

[0020] The rotating main body is sleeved on the sensing main rod and arranged along the central axis;

[0021] The receiving part is arranged on the outer surface of the induction sheet facing the transmitting part, and the inner surface of the induction sheet is connected with the rotating main body to form a whole.

[0022] As an optional implementation, the rotating main body is mounted on the sensing main rod via a second bearing.

[0023] As an optional implementation, the sensing part is provided with a receiving part, which is provided in conjunction with a transmitting part and is electrically connected to the alarm component;

[0024] The alarm component sends out an alarm signal according to the above-mentioned receiving part failing to receive the optical signal.

[0025] As an optional embodiment, when the pressure wheel mechanism is adjusted in position due to the preload force of the steel wire passing through its bottom, the induction plate rotates synchronously to cause the receiving part arranged on its surface to deflect by an angle in the clockwise or counterclockwise direction, and the transmitting part is arranged to be synchronously adjusted according to the deflected direction and angle to maintain the alignment of the transmitting part and the receiving part.

[0026] As an optional implementation, the sensing part is provided with a plurality of receiving parts, which are matched with at least one transmitting part; the plurality of receiving parts are electrically connected to the alarm component respectively;

[0027] The alarm component sends out an alarm signal according to the light signals received by multiple receiving parts in multiple consecutive transmission cycles.

[0028] As an optional embodiment, the plurality of receiving portions are configured to be evenly arranged at the same interval along the circumferential direction of the arc outer surface of the sensing portion.

[0029] As an optional implementation, the at least one emitting portion is a monochromatic laser emitter, which is used to emit a laser beam toward the arc outer surface of the sensing portion;

[0030] The at least one receiving unit adopts a photoelectric sensor to convert the received optical signal into an electrical signal for output.

[0031] As an embodiment, a wire breakage detection system in a steel cord electroplating process according to the second aspect of the present invention comprises a plurality of wire breakage detection devices in a steel cord electroplating process as described above, wherein the plurality of wire breakage detection devices independently correspond to a steel wire at a line position, and perform wire breakage detection on the steel wire passing through;

[0032] The sensing part of the sensing main rod of each wire breakage detection device is installed on the same fixed rod;

[0033] The plurality of broken wire detection devices are electrically connected to an industrial computer, which serves as a host computer and is used to control the operation of the plurality of broken wire detection devices, for example, initialization, parameter setting, and working mode setting of each broken wire detection device.

[0034] As an embodiment, a method for detecting broken steel wires in a steel cord electroplating process according to the third aspect of the present invention comprises:

[0035] The wire breakage detection devices in the electroplating process of multiple steel cords are arranged before the acid-base electroplating process in the electroplating process, after the heat treatment process link and before the pickling process link, and one wire breakage detection device is corresponding to one line position, and the multiple wire breakage detection devices are placed in parallel, and the corresponding sensing parts of the multiple wire breakage detection devices are respectively installed on the same fixed rod;

[0036] Initialize each wire breakage detection device through the host computer, and configure parameter settings and working mode settings;

[0037] When the steel wire is continuously pulled by the wire take-up machine from the heat treatment furnace through the pressure wheel mechanism of the steel wire breakage detection device, the steel wire breakage detection device corresponding to each wire position performs real-time wire breakage detection and alarm on the steel wire passing below it, wherein:

[0038] For the wire breakage detection device at any line position, in response to the receiving part provided by the sensing part not receiving the light signal, the alarm component sends out a first alarm signal; or,

[0039] For the wire breakage detection device at any line position, in response to N receiving parts receiving light signals in multiple consecutive emission cycles, the alarm component sends out a second alarm signal, where N is less than or equal to the total number of receiving parts arranged on the surface of the sensing part.

[0040] According to the above-mentioned embodiment of the present invention, since the electroplating process is a continuous production process, including process links such as heat treatment-pickling-alkaline copper plating-acid galvanizing-heating and tempering-induction heat diffusion, even if the steel wire breaks, the operation of the wire take-up machine will keep the steel wire being pulled toward the pickling tank, copper plating tank, and galvanizing tank to enter the next process. Therefore, the steel wire breakage detection device and the detection system in the steel cord electroplating process of the embodiment of the present invention are arranged before the acid-alkaline electroplating process, especially after the heat treatment process link and before the pickling process link. One line position corresponds to one steel wire breakage detection device. In actual use, multiple steel wire breakage detection devices can be placed on a mounting bracket and strung together through the same fixing rod.

[0041] During normal operation, the steel wire is located under the pressure roller mechanism (such as a U-shaped pressure roller or a V-shaped pressure roller). The sensing part is within the sensing range. When it receives and outputs a light signal, it indicates that the production process is operating normally and no alarm is issued. However, when the steel wire breaks in the furnace, the steel wire under the pressure roller mechanism runs empty. The entire pressure roller mechanism is pressed down, causing the sensing main rod to rotate clockwise with the sensing part. The sensing part is out of the sensing range and cannot receive the light signal output. The alarm component immediately sends an alarm signal to remind the operator to deal with the broken wire in time. In actual use, since there is a certain distance from the alarm position to the copper plating tank of the next process, the operator has a certain amount of time to meet the needs of arriving and dealing with the broken wire in time.

[0042] Compared with the prior art, the device and system for detecting broken steel wires in the steel cord electroplating process proposed by the present invention have the following significant beneficial effects:

[0043] The present invention realizes the detection and alarm of wire breakage in the electroplating process of steel cord production by adopting a real-time detection method, and can remind the operator to intervene in time when wire breakage occurs, so as to avoid the serious situation that a single wire breakage causes multiple wire breakages, resulting in emergency shutdown and production damage. The operator can find the wire breakage in time, quickly react and extract the broken wire, improve the stability of the subsequent electroplating coating, prevent the occurrence of wire twisting in production, improve production safety, and at the same time, reduce the emergency shutdown caused by wire breakage and wire twisting, reduce waste wire, and improve production efficiency.

[0044] It should be understood that all combinations of the aforementioned concepts and the additional concepts described in more detail below can be considered as part of the inventive subject matter of the present disclosure as long as such concepts are not mutually inconsistent. In addition, all combinations of the claimed subject matter are considered as part of the inventive subject matter of the present disclosure.

[0045] The foregoing and other aspects, embodiments and features of the present invention can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and / or beneficial effects of the exemplary embodiments, will be apparent from the following description or learned from the practice of the specific embodiments according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings are not intended to be drawn to scale. In the accompanying drawings, each identical or nearly identical component shown in each figure may be represented by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings.

[0047] Figure 1 It is a structural schematic diagram of a steel wire breakage detection device in a steel cord electroplating process according to a first embodiment of the present invention.

[0048] Figure 2 It is a schematic diagram of the exploded structure of a steel wire breakage detection device in a steel cord electroplating process according to a first embodiment of the present invention.

[0049] Figure 3 It is a schematic diagram of the detection principle of a broken steel wire detection device in a steel cord electroplating process according to a first embodiment of the present invention.

[0050] Figure 4 It is a schematic diagram of the detection process of the broken steel wire detection device in the steel cord electroplating process according to the first embodiment of the present invention.

[0051] Figure 5 1 is a schematic structural diagram of a device for detecting broken steel wires in a steel cord electroplating process according to a second embodiment of the present invention.

[0052] Figure 6 It is a schematic diagram of the detection principle of a broken steel wire detection device in a steel cord electroplating process according to a second embodiment of the present invention.

[0053] Figure 7 Schematic diagram of a steel wire breakage detection system in a steel cord electroplating process according to an embodiment of the present invention. DETAILED DESCRIPTION

[0054] In order to better understand the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

[0055] Various aspects of the present invention are described in this disclosure with reference to the accompanying drawings, in which many illustrative embodiments are shown. The embodiments of the present disclosure are not necessarily intended to include all aspects of the present invention. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed by the present invention are not limited to any implementation. In addition, some aspects disclosed by the present invention can be used alone or in any appropriate combination with other aspects disclosed by the present invention.

[0056] {Example 1}

[0057] Combination Figure 1-3 As shown, the broken wire detection device in the steel cord electroplating process according to the first embodiment of the present invention includes a pressure wheel mechanism 100, a sensing main rod 200, a fixing rod 300, a photoelectric sensor component 400, an alarm component 500 and a power supply component 600 for providing working voltage to the above-mentioned photoelectric sensor component 400 and the alarm component 500.

[0058] The power supply assembly 600 uses a DC power supply circuit to provide the operating voltage required by each component.

[0059] Combination Figure 1 , 2 As shown, the pressure wheel mechanism 100 is configured to cooperate with the steel wire passing through the bottom thereof, and is maintained with an upward movement tendency by the pre-tightening force provided by the steel wire during the movement of the steel wire.

[0060] The sensing main rod 200 is made of a heat-resistant and corrosion-resistant material, such as stainless steel, PA, PPS, etc. The present invention takes high-temperature PA as an example. Its first end is configured to be fixedly connected to the pressure wheel mechanism 100, and its opposite second end is formed with a sensing part 210.

[0061] like Figure 1 , 2 As shown, the central axis of the fixed rod 300 is parallel to the rotation axis of the pressure roller mechanism 100, and the sensing part 210 of the sensing main rod 200 is rotatably mounted on the fixed rod 300, and the central axis of the fixed rod 300 is used as the rotation axis. The fixed rod 300 is also made of heat-resistant and corrosion-resistant materials, such as stainless steel, PA, PPS, etc. The present invention is described by taking a stainless steel fixed rod as an example. The fixed rod 300, as the rotation axis of the broken wire monitoring device, can be installed on a fixed bracket to keep its position fixed.

[0062] The photoelectric sensor assembly 400 has at least one transmitting portion 410 and at least one receiving portion 420. In this example, relative to the position and angle of the fixing rod 300, the installation position of the at least one transmitting portion 410 is fixed and faces the sensing portion 210, and the at least one receiving portion 420 is disposed on the surface of the sensing portion 210 and faces the at least one transmitting portion 410.

[0063] The alarm component 500 is connected to the photoelectric sensor component 400 and is used to send out an alarm signal.

[0064] In this embodiment, the transmitting unit 410 may be a monochromatic laser transmitter, which is used to emit a laser beam toward the arc outer surface of the sensing unit 210. The receiving unit 420 may be a photoelectric sensor, such as a photoelectric sensor based on the external photoelectric effect, a photoelectric sensor based on the photoconductive effect (such as a photoresistor, etc.), or a photoelectric sensor based on the barrier effect (such as a photodiode, etc.), which is used to convert the received optical signal into an electrical signal output. In this embodiment, a photodiode is used as an example for description.

[0065] Combined with Figure 1 , 2 As shown in Figures 3 and 4, during operation, the photoelectric sensor component 400 can be configured with parameters through the host computer, including parameter settings and working mode settings. In this embodiment, the transmitting unit 410 is configured to transmit a light signal, and the receiving unit 420 is configured to receive the light signal and output an electrical signal to the alarm component 500. The alarm component 500 performs a broken wire alarm according to the electrical signal output by the receiving unit 420.

[0066] Combined with Figure 1 , 2 In the example shown, the pressure wheel mechanism 100 includes a pressure wheel seat 101 , a first bearing 102 , a first pressure wheel 203 , and a pressure wheel cover 204 ; the steel wire moves from the bottom of the first pressure wheel 203 .

[0067] The first side surface of the first pressure wheel 203 is installed on the pressure wheel seat 101 through the first bearing 102, and the pressure wheel cover 204 is installed on the second side surface of the first pressure wheel 203. The first bolt passes through the pressure wheel cover 204 and the first pressure wheel 203 and is screwed into the side of the pressure wheel seat 101 to limit the lateral displacement of the first pressure wheel 203, and can only rotate freely in the circumferential direction relative to the pressure wheel seat 101.

[0068] Combined with Figure 1 , 2 In the example shown, the pressure wheel seat 101 includes an L-shaped sheet body, and its first sheet portion 101A is provided with a perforated cylindrical fixing portion 101A-1 extending upward from its surface for fastening and fixing with the first end of the sensing body rod 200 by a second bolt.

[0069] The second piece 101B is perpendicular to the first piece 101A and is provided with a bearing fixing portion 101B-1 with an axial hole extending upward from its surface. The first bearing 102 is sleeved on the bearing fixing portion 101B-1, and the first bolt passes through the pressure wheel cover 204 and the first pressure wheel 203 and is screwed into the axial hole.

[0070] In this example, the pressure wheel seat 101 is preferably made of stainless steel, which has strong mechanical properties and strength.

[0071] As an optional example, the first pressing wheel 203 is a V-shaped pressing wheel, or a U-shaped pressing wheel, allowing the steel wire to pass through its bottom.

[0072] As an alternative example, combining Figure 2 As shown, the sensing portion 210 includes a cylindrical rotating main body portion 211 and an arc-shaped sensing sheet 212 connected to the rotating main body portion 211 .

[0073] The rotating body part 211 is sleeved on the sensing body rod 200 , and the two are arranged with a common central axis.

[0074] The receiving portion 420 is disposed on the outer surface of the sensing sheet 212 facing the transmitting portion 410 , and the inner surface of the sensing sheet 212 is connected to the rotating main body 211 to form a whole.

[0075] Combination Figure 2 , 3 As shown in FIG. 4 , as an optional example, only one receiving unit 420 is provided on the sensing unit 210 , which is provided in conjunction with one transmitting unit 410 and is electrically connected to the alarm component 500 .

[0076] The alarm component 500 sends out a first alarm signal according to the receiving unit 420 not receiving the optical signal.

[0077] like Figure 1 , 3 As shown in FIG. 4, in normal operation, the steel wire is located under the first pressing wheel 203 (such as a U-shaped pressing wheel or a V-shaped pressing wheel) of the pressing wheel mechanism and passes through. The sensing part is within the sensing range. When the receiving part 420 on the sensing sheet receives the light signal and outputs it, it indicates that the production process is running normally and no alarm is required.

[0078] When the steel wire breaks in the furnace of the previous process of heat treatment, the steel wire under the first pressing wheel 203 of the pressing wheel mechanism will run empty, and the entire pressing wheel mechanism will send a downward pressing movement, causing the sensing main rod 200 to rotate clockwise around the fixed rod 300 with the sensing part 210. At this time, the sensing part 210 is out of the sensing range, and the receiving part 420 cannot receive the optical signal output, then the alarm component 500 immediately sends an alarm signal to remind the operator to deal with the broken wire in time.

[0079] During actual use, in the process of generating a cord of a specific design, the sensing main rod 200 is debugged in advance and supported to a certain angle according to the speed of pulling the steel wire through and the preload force on the first pressure wheel. The angle of the transmitting part 410 is adjusted accordingly to align it with the transmitting part 410 on the surface of the sensing part 210 on the sensing main rod 200, so as to achieve accurate transmission and reception and prevent false alarms.

[0080] When adjusting the production line or changing the cord product model, it is necessary to adjust the running speed of the wire take-up machine so that the pulling speed of the steel wire changes. When the pressure wheel mechanism 100 is adjusted in position due to the different pre-tightening forces of the steel wire passing through its bottom, the induction plate 212 rotates synchronously, causing the receiving part 420 arranged on its surface to deflect in the clockwise or counterclockwise direction by an angle α. The transmitting part 410 is arranged to be synchronously adjusted according to the deflected direction and the angle α to keep the transmitting part 410 aligned with the receiving part 420.

[0081] It should be understood that in the embodiment of the present invention, although the figure shows that each steel cord electroplating process steel wire broken wire detection device is independently powered by the power supply assembly 600. In other embodiments, an AC power distribution cabinet, a rectifier circuit (such as a bridge rectifier, etc.) and a switching power supply module can be used to provide a working voltage supply to multiple steel wire broken wire detection devices as a whole.

[0082] The independent power supply design or the overall power supply design of the power supply assembly 600 can be implemented based on existing commercial power supply circuits and modules.

[0083] In an embodiment of the present invention, the alarm component 500 and the power component 600 not shown in the drawings can be fixed to the back of the sensor sheet 212 in a close-fitting manner and connected by cables. The transmitter 410 can be fixed to a separate fixing bracket. The receiver 420 is mounted on the surface of the sensor sheet in a patch-type manner, and can be fixed by glue dripping, and is connected to the printed circuit board of the alarm component 500 from the bottom by spot welding.

[0084] In an embodiment of the present invention, the alarm circuit 500 can adopt a buzzer alarm circuit based on microcontroller control, or a buzzer alarm circuit based on op amp comparator circuit control, and can be implemented by existing design or commercial alarm circuit. For example, in the design of the buzzer alarm circuit based on op amp comparator circuit control, a comparator IC (such as LM393, LM311), a voltage amplifier, a reference voltage source, and a buzzer are usually designed. In the positive input (+) and negative input (-) of the comparator IC, the output of the photoelectric sensor is connected to the negative input of the comparator after passing through the voltage amplifier, and the buzzer selects an active buzzer and is connected to the output and power supply of the comparator. The reference voltage source is usually composed of a voltage divider resistor network, which is used to provide a stable reference voltage connected to the positive input of the comparator. By adjusting the ratio of the two resistors of the voltage divider resistor network (one of which is an adjustable resistor), different reference voltage values ​​can be set. When the photoelectric sensor detects the output of the light signal, its output voltage is amplified and input to the comparator. If the voltage is higher than the reference voltage, the comparator outputs a high level, and the high level signal can directly drive the active buzzer to sound. When the photoelectric sensor does not detect the target, the output voltage is lower than the reference voltage, the comparator outputs a low level, and the buzzer does not sound.

[0085] In another embodiment, a buzzer alarm circuit based on single-chip microcomputer control can also be used, with the analog voltage signal output by the receiving part (such as a photoelectric sensor) as input, and the output end of the receiving part 420 is connected to the analog signal input pin of the single-chip microcomputer (such as a mature 51 series single-chip microcomputer, using a low-cost 8051MCUSOP28SOC Saiyuan SC92F7423X28U microcontroller single-chip microcomputer), and the single-chip microcomputer determines the state of the photoelectric sensor by reading the voltage value of the pin. When the signal detected by the photoelectric sensor and the output exceeds the set threshold (a threshold is pre-set by the program, and the threshold is determined during debugging), the digital output pin of the single-chip microcomputer outputs a high level, and the high-level signal turns on the NPN transistor through the base resistor. When the transistor is turned on, the current flows through the buzzer after passing through the current limiting resistor, causing the buzzer to sound an alarm. On the contrary, when the photoelectric sensor does not detect a signal, the digital output pin of the single-chip microcomputer outputs a low level, the transistor is cut off, and the buzzer will not sound an alarm.

[0086] It should be understood that the description of the above alarm circuit is intended to illustrate an example of how to issue an alarm based on the sensing output of a photoelectric sensor. Under the guidance of the present invention, those skilled in the art may also use other alarm circuits to implement the alarm.

[0087] In the example of the present invention, the alarm circuit can be designed to emit a buzzer alarm to warn of broken wires, prompting the operator to go to the alarm line position to find the broken wires and quickly extract the broken wires for processing.

[0088] {Example 2}

[0089] Combination Figure 5 , 6 As shown, in the design of the steel wire breakage detection device in the steel cord electroplating process according to the second embodiment of the present invention, on the basis of the aforementioned first embodiment, a plurality of receiving parts 420 are provided on the sensing part 210, and are provided in conjunction with at least one transmitting part 410. In this embodiment, a design of a transmitting part 410 is taken as an example for exemplary description, and the plurality of receiving parts 420 are electrically connected to the alarm component 500 respectively.

[0090] exist Figure 5 , 6 In the example shown, 10 receiving parts 420 (such as photoelectric sensors) arranged along the arc outer surface of the sensing part 210 are used as an example for explanation, and the multiple receiving parts 420 are evenly arranged at the same interval in the circumferential direction of the outer surface of the arc-shaped sensing sheet 212 of the sensing part 210. Preferably, the interval distance is small enough to improve the detection accuracy. In this embodiment, the interval distance is 0.1 to 0.5 mm.

[0091] The alarm component 500 issues a second alarm signal according to the light signals received by the multiple receiving units 420 in a plurality of consecutive transmission cycles.

[0092] That is, if multiple receiving parts 420 on the outer surface of the sensor plate 212 all receive and output light signals within M consecutive emission cycles (M is 3 to 10), it means that at M consecutive moments, the speed and / or tension of the steel wire passing through changes, causing the first pressure wheel 103 to be displaced due to the change in the preload force of the steel wire passing through its bottom, causing the sensing main body rod 200 and its sensing plate 212 to rotate synchronously, so that the multiple receiving parts 420 arranged on the surface of the sensing plate 212 rotate in a clockwise or counterclockwise direction, thereby causing N consecutive (N is less than or equal to the total number of receiving parts 420) of the multiple receiving parts 420 to receive signals, thereby sending an alarm signal through the alarm component 500.

[0093] In this embodiment, the second alarm signal emitted by the alarm component 500 can be distinguished from the first alarm signal in a manner such as the second alarm signal using a different type of alarm tone, an alarm tone with a different rhythm / frequency, etc.

[0094] {Example 3}

[0095] Combined with Figure 7 The example shown shows the structure of a wire breakage detection system in a steel cord electroplating process using multiple wire breakage detection devices, each of which independently corresponds to a wire at a line position. Each wire breakage detection device is used to detect wire breakage on a wire passing through its bottom.

[0096] The sensing portion 210 of the sensing main rod 200 of each wire breakage detection device is mounted on the same fixing rod 300 .

[0097] Combined with Figure 7 As shown, multiple broken wire detection devices are electrically connected to an industrial computer 1000. The industrial computer 1000 serves as a host computer and can be implemented using an ARM-based industrial computer system. It is configured with input and output devices and display devices and is connected to the broken wire detection device via a 232 or 485 bus to perform operations such as initialization, parameter setting, parameter adjustment, and working mode setting on the detection device, and to control the operation of multiple broken wire detection devices.

[0098] It should be understood that in the broken wire detection system of this embodiment, power is supplied to each independent broken wire detection device through a unified power supply system to achieve unified management and control.

[0099] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A device for detecting broken steel wires in a steel cord electroplating process, characterized in that: include: The pressure wheel mechanism (100) is configured to cooperate with a steel wire passing through the bottom thereof and maintain an upward movement tendency due to the pre-tightening force provided by the steel wire during the movement of the steel wire; A sensing main body rod (200), wherein a first end of the sensing main body rod (200) is arranged to be fixedly connected to the pressing wheel mechanism (100), and a sensing portion (210) is formed at an opposite second end thereof; A fixed rod (300), the central axis of the fixed rod (300) is parallel to the rotation axis of the pressing wheel mechanism (100), and the sensing portion (210) of the sensing main rod (200) is rotatably mounted on the fixed rod (300), with the central axis of the fixed rod (300) as the rotation axis; A photoelectric sensor assembly (400), the photoelectric sensor assembly (400) comprising at least one transmitting portion (410) and at least one receiving portion (420); relative to the position and angle direction of the fixing rod (300), the installation position of the at least one transmitting portion (410) is fixed and faces the sensing portion (210), and the at least one receiving portion (420) is arranged on the surface of the sensing portion (210) and faces the at least one transmitting portion (410); as well as An alarm component (500) is electrically connected to the photoelectric sensor component (400); The at least one transmitting part (410) is configured to transmit a light signal toward the surface of the sensing part (210), and the at least one receiving part (420) is configured to receive the light signal and output an electrical signal to the alarm component (500). The alarm component (500) performs a wire break alarm according to the electrical signal output by the at least one receiving part (420).

2. The device for detecting broken steel wires in a steel cord electroplating process according to claim 1, characterized in that: The pressing wheel mechanism (100) comprises a pressing wheel seat (101), a first bearing (102), a first pressing wheel (203) and a pressing wheel cover (204); the steel wire moves from the bottom of the first pressing wheel (203); The first side surface of the first pressure wheel (203) is mounted on the pressure wheel seat (101) via the first bearing (102), the pressure wheel cover (204) is mounted on the second side surface of the first pressure wheel (203), and the first bolt passes through the pressure wheel cover (204) and the first pressure wheel (203) and is screwed into the side of the pressure wheel seat (101) to limit the lateral displacement of the first pressure wheel (203), and the first pressure wheel (203) can only rotate freely in the circumferential direction relative to the pressure wheel seat (101).

3. The device for detecting broken steel wires in a steel cord electroplating process according to claim 2, characterized in that: The pressure wheel seat (101) comprises an L-shaped sheet-shaped main body, wherein the first sheet portion (101A) is provided with a cylindrical fixing portion (101A-1) with a perforation extending upward from the surface thereof, and is used for being fastened and fixed to the first end of the sensing main body rod (200) by a second bolt; The second sheet (101B) is perpendicular to the first sheet (101A) and is provided with a bearing fixing portion (101B-1) with an axial hole extending upward from its surface. The first bearing (102) is sleeved on the bearing fixing portion (101B-1), and the first bolt passes through the pressure wheel cover (204) and the first pressure wheel (203) and is screwed into the axial hole.

4. The device for detecting broken steel wires in a steel cord electroplating process according to claim 3, characterized in that: The sensing part (210) comprises a cylindrical rotating main body (211) and an arc-shaped sensing sheet (212) connected to the rotating main body (211); The rotating main body (211) is sleeved on the sensing main body rod (200) and arranged with a common central axis; The receiving portion (420) is arranged on the outer surface of the sensing sheet (212) facing the transmitting portion (410), and the inner surface of the sensing sheet (212) is connected to the rotating main body (211) to form a whole.

5. The device for detecting broken steel wires in a steel cord electroplating process according to any one of claims 1 to 4, characterized in that: The sensing part (210) is provided with a receiving part (420), which is matched with a transmitting part (410) and is electrically connected to the alarm component (500); The alarm component (500) issues a first alarm signal in response to the receiving unit (420) not receiving the optical signal.

6. The device for detecting broken steel wires in a steel cord electroplating process according to claim 5, characterized in that: When the pressure wheel mechanism (100) is adjusted in position due to the pre-tightening force of the steel wire passing through its bottom, the induction sheet (212) rotates synchronously, causing the receiving portion (420) arranged on its surface to deflect in a clockwise or counterclockwise direction by an angle, and the transmitting portion (410) is arranged to be adjusted synchronously according to the deflected direction and angle to maintain the alignment of the transmitting portion (410) and the receiving portion (420).

7. The device for detecting broken steel wires in a steel cord electroplating process according to any one of claims 1 to 4, characterized in that: The sensing part (210) is provided with a plurality of receiving parts (420), which are matched with at least one transmitting part (410); the plurality of receiving parts (420) are electrically connected to the alarm component (500) respectively; The alarm component (500) sends out a second alarm signal based on N receiving parts (420) receiving light signals in a plurality of consecutive emission cycles, where N is less than or equal to the total number of receiving parts (420) arranged on the surface of the sensing part (210).

8. The device for detecting broken steel wires in a steel cord electroplating process according to claim 7, characterized in that: The plurality of receiving portions (420) are arranged to be evenly spaced at the same interval along the circumferential direction of the arc outer surface of the sensing portion (210).

9. The device for detecting broken steel wires in a steel cord electroplating process according to claim 1, characterized in that: The at least one emitting portion (410) is a monochromatic laser emitter, and is used to emit a laser beam toward the arc outer surface of the sensing portion (210); The at least one receiving unit (420) adopts a photoelectric sensor, which is used to convert the received optical signal into an electrical signal for output.

10. A wire breakage detection system in a steel cord electroplating process, characterized in that: The invention comprises a plurality of broken wire detection devices in a steel cord electroplating process as claimed in any one of claims 1 to 9, wherein the plurality of broken wire detection devices independently correspond to a steel wire at a line position, and perform broken wire detection on the passing steel wire; The sensing part (210) of the sensing main rod (200) of each wire breakage detection device is mounted on the same fixing rod (300); The plurality of broken wire detection devices are electrically connected to an industrial computer (1000), and the industrial computer (1000) serves as a host computer and is used to control the operation of the plurality of broken wire detection devices.

11. A method for detecting broken steel wires in a steel cord electroplating process, characterized in that: include: A plurality of broken wire detection devices in the steel cord electroplating process as claimed in any one of claims 1 to 9 are arranged before the acid-base electroplating process in the electroplating process, after the heat treatment process link and before the pickling process link, and one wire position corresponds to one broken wire detection device, and the plurality of broken wire detection devices are placed in parallel, and the corresponding sensing parts of the plurality of broken wire detection devices are respectively installed on the same fixed rod; Initialize each wire breakage detection device through the host computer, and configure parameter settings and working mode settings; When the steel wire is continuously pulled by the wire take-up machine from the heat treatment furnace through the pressure wheel mechanism of the steel wire breakage detection device, the steel wire breakage detection device corresponding to each wire position performs real-time wire breakage detection and alarm on the steel wire passing below it, wherein: For the wire breakage detection device at any line position, in response to the receiving part provided by the sensing part not receiving the light signal, the alarm component sends out a first alarm signal; or, For the wire breakage detection device at any line position, in response to N receiving parts receiving light signals in multiple consecutive emission cycles, the alarm component sends out a second alarm signal, where N is less than or equal to the total number of receiving parts arranged on the surface of the sensing part.

Images