Cable colored tape pay-off breakage alarm system and cable colored tape pay-off breakage alarm method

Abstract

The invention provides a cable ribbon pay-off breakage alarm system and method.The system comprises a metal induction disc coaxially fixed to a ribbon disc and an induction switch, the metal induction disc is provided with a plurality of induction protruding columns evenly distributed on the circumference, and the induction switch is electrically connected to a pulse detection module; the pulse detection module is electrically connected to the main control module, the main control module is electrically connected with a sound-light alarm module, and when the sensing convex column penetrates through the sensing switch, the pulse detection module receives a primary pulse signal and sends the pulse signal to the main control module; the master control module controls the sound-light alarm module to carry out sound-light alarm according to the size relation between the number of times of pulse signals obtained in unit time and a pulse number threshold. According to the invention, the phenomenon of colored tape breakage is directly converted into a switching value, the judgment of colored tape breakage can be accurately made by utilizing the physical characteristic, and when the colored tape is broken, sound-light alarm is driven to quickly and effectively remind workers.

Description

Technical Field

[0001] The invention relates to the technical field of electric wires and cables, in particular to a cable ribbon pay-off and ribbon break alarm system and method. Background Art

[0002] Wires and cables are an important and indispensable role in the power industry. Wherever there is electricity, there must be wires and cables. When cable manufacturers produce a variety of wires and cables, in order to facilitate on-site installation of wires and cables and maintenance in the event of a later failure, the wire cores need to be color-separated during cable production. Currently, the commonly used color separation methods include masterbatch color separation, ribbon color separation, digital color separation, laser printing color separation and other methods. Defects and shortcomings of the existing technology: Ribbon color separation is the most widely used color separation method in cable production due to its simple processing technology and convenient operation. During the production process, due to factors such as the fast cable production speed, narrow ribbon, and low tensile strength, the ribbon is prone to break after being stressed, and workers cannot find it in time, resulting in the phenomenon of no ribbon on some wire cores, affecting later construction and operation and maintenance. Therefore, it is urgently necessary to design an online ribbon break alarm device to reduce the problem of not being able to find the ribbon break in time. Summary of the invention

[0003] The present invention solves the problem that workers cannot find out the broken ribbon in time during the cable production process, and proposes a cable ribbon pay-off broken ribbon alarm system and method, which directly converts the phenomenon of ribbon broken ribbon into a switch quantity, and uses this physical property to accurately judge the broken ribbon. When the ribbon is broken, an audible and visual alarm is driven to quickly and effectively remind the workers.

[0004] In order to achieve the above objectives, the following technical solutions are proposed: A cable ribbon pay-off and broken ribbon alarm system comprises a metal induction disk and an induction switch fixed coaxially with the ribbon disk, the metal induction disk is provided with a plurality of induction bosses evenly distributed circumferentially, the induction switch is electrically connected to a pulse detection module, the pulse detection module is electrically connected to a main control module, the main control module is electrically connected to an audible and visual alarm module, when the induction boss passes through the induction switch, the pulse detection module receives a pulse signal and sends a pulse signal to the main control module, the main control module controls the audible and visual alarm module to sound and light alarm according to the relationship between the number of pulse signals obtained per unit time and a pulse number threshold.

[0005] The alarm principle of the present invention is as follows: after the ribbon breaks, the ribbon reel will stop rotating due to the lack of cable traction. The ribbon reel is relatively light and has a small inertia, and there is a certain damping between the rotating shaft and the ribbon reel, so it will generally stop rotating about one to one and a half seconds after the ribbon breaks. The metal induction disk and the ribbon reel are coaxially fixed to ensure that the induction disk is synchronized with the ribbon reel. The induction switch is used to sense the rotation of the metal induction disk, thereby obtaining the rotation of the ribbon reel. The number of pulses obtained by the induction switch reflects the rotation of the metal induction disk. This physical characteristic can accurately determine whether the ribbon is broken. When the ribbon is broken, an audible and visual alarm is driven to quickly and effectively remind the workers.

[0006] Preferably, the ribbon disk is provided with a plurality of threaded holes, the metal sensor disk is provided with a plurality of countersunk bolt holes at positions corresponding to the threaded holes, and bolts are connected between the countersunk bolt holes and the threaded holes.

[0007] Preferably, a delay module is electrically connected between the pulse detection module and the main control module, and the delay module delays the acquisition of pulse data of the pulse detection module. The main control module is electrically connected to a start signal receiving module, and the start signal receiving module acquires the start signal of the cable traction machine.

[0008] At the initial stage of production line startup, the speed of the traction cable is relatively slow, and the number of pulses per unit time of the detection device cannot meet the set requirements. Therefore, the present invention adopts a time relay delay module output to prevent false alarms.

[0009] Preferably, the delay time of the module delay is greater than or equal to the time from when the metal sensor disk starts to rotate to when its acceleration is less than a set value.

[0010] Preferably, the induction switch is an electromagnetic induction switch, and when the induction boss passes through the electromagnetic induction switch, the maximum distance between the induction boss and the sensing end of the electromagnetic induction switch is within the sensing distance of the electromagnetic induction switch.

[0011] Preferably, the sensing protrusions are provided with 12-24, and the pulse number threshold is adjusted according to the number of sensing protrusions. The present invention makes a metal sensing disk with multi-point sensing characteristics synchronized with the ribbon disk, and then installs a matching sensing switch, so that a pulse signal mapping the rotation state of the ribbon disk is sampled, and the signal is processed by a pulse detection electronic module, and the module outputs a switch quantity driving the sound and light alarm within a certain range of the ribbon disk rotation or static state to realize the broken belt alarm function. If the metal sensing disk has 12-16 sensing points, that is, the number of sensing protrusions is 12-16, the specific parameters are measured and calculated, and it is determined that the detection cycle is 1 second to 1.5 seconds, and the number of pulses is 2. If the metal sensing disk has 16-24 sensing points, that is, the number of sensing protrusions is 16-24, the specific parameters are measured and calculated, then the detection cycle can be adjusted to 0.5-1 second, or the number of pulses is adjusted to 3, so that the entire device responds quickly and accurately.

[0012] A cable ribbon pay-off break alarm method, using the above-mentioned cable ribbon pay-off break alarm system, comprises the following steps: S1, determine whether the start signal receiving module receives the start signal of the cable traction machine. If so, the main control module performs delay judgment on the pulse data according to the delay time of the delay module. If not, return to S1; S2, judging whether the number of pulse signals obtained in a unit time is less than the pulse number threshold, if so, it is considered that the ribbon is broken, and the main control module controls the sound and light alarm module to sound and light alarm, if not, proceed to S3; S3, determine whether the start signal of the cable traction machine is disconnected, if so, reset the delay time and return to S1, if not, return to S2.

[0013] Preferably, the delay time setting process is as follows: Sa, after the start signal receiving module receives the start signal of the cable traction machine, the main control module obtains the pulse data of the pulse detection module in real time, obtains the average rotation speed of the metal induction disk according to the time interval of the pulse data, and obtains the acceleration of the metal induction disk through the average rotation speed of the metal induction disk; The size of the metal sensing disk is known, and the distance between the two sensing bosses is assumed to be known. The time interval for obtaining the pulse data represents the movement time from one sensing boss to another. The average rotation speed is calculated by the distance and movement time of the two sensing bosses, and the acceleration can be calculated from the average rotation speeds of two adjacent times.

[0014] Sb, determine whether the acceleration of the metal induction disk is less than the set value. If so, record the total time from receiving the start signal of the cable traction machine to the moment when the acceleration of the metal induction disk is less than the set value, and use the total time as the delay time. If not, proceed to Sc; The present invention uses the value of acceleration for judgment because as the ribbon on the ribbon reel decreases, the weight of the ribbon reel decreases, and the rotation speed changes. Judging by the average speed may lead to false alarms, while acceleration is the changing value of speed. Judging by the threshold of the changing value can reduce the false alarm rate.

[0015] Sc, the acceleration of the metal sensor disk is continuously judged until the duration exceeds the threshold value, and the ribbon is considered to be broken, and the main control module controls the sound and light alarm module to sound and light alarm.

[0016] The beneficial effects of the present invention are as follows: the metal sensing disk and the color ribbon disk are coaxially fixed to ensure synchronization of the sensing disk and the color ribbon disk; the sensing switch is used to sense the rotation of the metal sensing disk, thereby obtaining the rotation of the color ribbon disk; the number of pulses obtained by the sensing switch reflects the rotation of the metal sensing disk; this physical characteristic can be used to accurately determine whether the color ribbon is broken; when the color ribbon is broken, an audible and visual alarm is driven to quickly and effectively remind the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a system configuration diagram of the present invention.

[0018] Figure 2 It is a circuit topology diagram of the present invention.

[0019] Figure 3 It is a flow chart of the method of the present invention.

[0020] Among them: 1. ribbon disk; 2. metal induction disk; 3. induction switch; 4. induction boss; 5. countersunk bolt hole; 6. threaded hole; 7. bolt. DETAILED DESCRIPTION

[0021] Embodiment 1: This embodiment provides a cable ribbon pay-off and break alarm system, referring to Figure 1 , including a metal sensing disk 2 and a sensing switch 3 coaxially fixed with a ribbon disk 1, a plurality of sensing convex pillars 4 evenly distributed around the circumference are provided on the metal sensing disk 2, the sensing switch 3 is electrically connected to a pulse detection module, the pulse detection module is electrically connected to a main control module, the main control module is electrically connected to an audible and visual alarm module, when the sensing convex pillar 4 passes through the sensing switch 3, the pulse detection module receives a pulse signal and sends a pulse signal to the main control module, the main control module controls the audible and visual alarm module to sound and light alarm according to the relationship between the number of pulse signals obtained per unit time and the pulse number threshold.

[0022] The alarm principle of the present invention is as follows: after the ribbon breaks, the ribbon reel will stop rotating due to the lack of cable traction. The ribbon reel is relatively light and has a small inertia, and there is a certain damping between the rotating shaft and the ribbon reel, so it will generally stop rotating about one to one and a half seconds after the ribbon breaks. The metal induction disk 2 and the ribbon reel 1 are coaxially fixed to ensure that the induction disk is synchronized with the ribbon reel. The induction switch 3 is used to sense the rotation of the metal induction disk 2, thereby obtaining the rotation of the ribbon reel 1. The number of pulses obtained by the induction switch 3 reflects the rotation of the metal induction disk 2. This physical characteristic can accurately determine whether the ribbon is broken. When the ribbon is broken, an audible and visual alarm is driven to quickly and effectively remind the workers.

[0023] A delay module is electrically connected between the pulse detection module and the main control module, and the delay module delays to obtain the pulse data of the pulse detection module. The main control module is electrically connected to a start signal receiving module, and the start signal receiving module obtains the start signal of the cable traction machine.

[0024] At the initial stage of production line startup, the speed of the traction cable is relatively slow, and the number of pulses per unit time of the detection device cannot meet the set requirements. Therefore, the present invention adopts a time relay delay module output to prevent false alarms.

[0025] The delay time of the module delay is greater than or equal to the time from when the metal induction disk 2 starts to rotate to when its acceleration is less than the set value.

[0026] The induction switch 3 is an electromagnetic induction switch. When the induction protrusion 4 passes through the electromagnetic induction switch, the maximum distance between the induction protrusion 4 and the sensing end of the electromagnetic induction switch is within the sensing distance of the electromagnetic induction switch. Since the ribbon is relatively thin and soft, it is not easy to sample mechanically and it is difficult to achieve stable and accurate requirements. Therefore, electromagnetic induction sampling is adopted and the induction signal is processed by an electronic module.

[0027] The number of the sensing protrusions 4 is 12-24, and the pulse number threshold is adjusted according to the number of the sensing protrusions 4.

[0028] The present invention makes a metal induction disk with multi-point induction characteristics that is synchronized with the ribbon disk, and then installs a matching induction switch, so that a pulse signal that maps the rotation state of the ribbon disk is sampled, and the signal is processed by a pulse detection electronic module. The module outputs a switch quantity that drives an audible and visual alarm within a certain range of the ribbon disk rotation or static state, thereby realizing a broken ribbon alarm function. If the metal induction disk has 12-16 induction points, that is, the number of induction convex columns 4 is 12-16, the specific parameters are measured and calculated, and it is determined that the detection cycle is 1 second to 1.5 seconds, and the number of pulses is 2. If the metal induction disk has 16-24 induction points, that is, the number of induction convex columns 4 is 16-24, the specific parameters are measured and calculated, and the detection cycle can be adjusted to 0.5-1 second, or the number of pulses can be adjusted to 3, so that the entire device responds quickly and accurately.

[0029] In addition, the circuit design of this paper refers to Figure 2 , the whole circuit is powered by 24 volts, with low energy consumption and safety regulations. The present invention sets up two-way ribbon reels and corresponding induction circuits to facilitate operators to replace ribbons. The present invention installs a device operation indication, and the device start signal is taken from the switch output of the main traction start. At the initial stage of the production line startup of the present invention, the speed of the traction cable is relatively slow, and the number of pulses per unit time of the detection device does not meet the set requirements, so the time relay delay module output is used to prevent false alarms. Finally, the output logic of the pulse detection module of the present invention is inverted.

[0030] Installation and verification of the present invention: Installation points First, set the disk and the outer shaft to have enough friction to ensure that the induction disk is synchronized with the color setting disk. Secondly, the spacing between the induction points on the induction disk and the induction switch is uniform. Thirdly, observe the speed and acceleration when the production line starts, and adjust the delay time of the circuit accordingly. Fourthly, measure the stop time of the color ribbon disk when it is full and when it is close to empty, and adjust the detection cycle of the setting circuit accordingly.

[0031] Cost and energy consumption of the present invention: The cost of all electrical and electronic hardware of the present device is about 170 yuan, and the processing difficulty of the mechanical part is not high. The energy consumption in normal operation is between 15-30W, 15W in detection, and 30W in alarm, which meets the requirements of low-carbon manufacturing.

[0032] A cable ribbon pay-off broken ribbon alarm method, reference Figure 3 , using the above-mentioned cable ribbon pay-off and break alarm system, comprising the following steps: S1, determine whether the start signal receiving module receives the start signal of the cable traction machine. If so, the main control module performs delay judgment on the pulse data according to the delay time of the delay module. If not, return to S1; S2, judging whether the number of pulse signals obtained in a unit time is less than the pulse number threshold, if so, it is considered that the ribbon is broken, and the main control module controls the sound and light alarm module to sound and light alarm, if not, proceed to S3; S3, determine whether the start signal of the cable traction machine is disconnected, if so, reset the delay time and return to S1, if not, return to S2.

[0033] The delay time setting process is as follows: Sa, after the start signal receiving module receives the start signal of the cable traction machine, the main control module obtains the pulse data of the pulse detection module in real time, obtains the average rotation speed of the metal induction disk 2 according to the time interval of the pulse data, and obtains the acceleration of the metal induction disk 2 through the average rotation speed of the metal induction disk 2; The size of the metal sensing disk 2 is known, and it is assumed that the distance between the two sensing bosses 4 is known. The time interval for obtaining the pulse data represents the movement time from one sensing boss 4 to another sensing boss 4. The average rotational speed is calculated by the distance and movement time between the two sensing bosses 4, and the acceleration can be calculated from the average rotational speeds of two adjacent times.

[0034] Sb, determine whether the acceleration of the metal induction disk 2 is less than the set value. If so, record the total time from receiving the start signal of the cable traction machine to the moment when the acceleration of the metal induction disk 2 is less than the set value, and use the total time as the delay time. If not, proceed to Sc; The reason why the present invention uses the numerical value of acceleration for judgment is that as the ribbon on the ribbon reel 1 decreases, the weight of the ribbon reel 1 decreases, and the rotation speed will change. Judging by the average speed will lead to false alarms, while acceleration is the changing value of speed. Judging by the threshold of the changing value can reduce the false alarm rate.

[0035] Sc, the acceleration of the metal induction disk 2 is continuously judged until the duration exceeds a threshold value, and it is considered that the ribbon is broken, and the main control module controls the sound and light alarm module to sound and light alarm.

[0036] The beneficial effects of the present invention are as follows: the metal sensing disk 2 and the color ribbon disk 1 are coaxially fixed to ensure synchronization between the sensing disk and the color ribbon disk; the sensing switch 3 is used to sense the rotation of the metal sensing disk 2, thereby obtaining the rotation of the color ribbon disk 1; the number of pulses obtained by the sensing switch 3 reflects the rotation of the metal sensing disk 2; this physical property can be used to accurately determine whether the color ribbon is broken; when the color ribbon is broken, an audible and visual alarm is driven to quickly and effectively remind the workers.

[0037] Embodiment 2: Based on the embodiment 1, the present embodiment improves the installation method of the metal induction plate 2, and proposes a cable ribbon pay-off and break alarm system. Figure 1 , including a metal sensing disk 2 and a sensing switch 3 coaxially fixed with a ribbon disk 1, a plurality of sensing convex pillars 4 evenly distributed around the circumference are provided on the metal sensing disk 2, the sensing switch 3 is electrically connected to a pulse detection module, the pulse detection module is electrically connected to a main control module, the main control module is electrically connected to an audible and visual alarm module, when the sensing convex pillar 4 passes through the sensing switch 3, the pulse detection module receives a pulse signal and sends a pulse signal to the main control module, the main control module controls the audible and visual alarm module to sound and light alarm according to the relationship between the number of pulse signals obtained per unit time and the pulse number threshold.

[0038] The alarm principle of the present invention is as follows: after the ribbon breaks, the ribbon reel will stop rotating due to the lack of cable traction. The ribbon reel is relatively light and has a small inertia, and there is a certain damping between the rotating shaft and the ribbon reel, so it will generally stop rotating about one to one and a half seconds after the ribbon breaks. The metal induction disk 2 and the ribbon reel 1 are coaxially fixed to ensure that the induction disk is synchronized with the ribbon reel. The induction switch 3 is used to sense the rotation of the metal induction disk 2, thereby obtaining the rotation of the ribbon reel 1. The number of pulses obtained by the induction switch 3 reflects the rotation of the metal induction disk 2. This physical characteristic can accurately determine whether the ribbon is broken. When the ribbon is broken, an audible and visual alarm is driven to quickly and effectively remind the workers.

[0039] The ribbon disk 1 is provided with a plurality of threaded holes 6 , and the metal sensor disk 2 is provided with a plurality of countersunk bolt holes 5 at positions corresponding to the threaded holes 6 , and bolts 7 are connected between the countersunk bolt holes 5 and the threaded holes 6 .

[0040] A delay module is electrically connected between the pulse detection module and the main control module, and the delay module delays to obtain the pulse data of the pulse detection module. The main control module is electrically connected to a start signal receiving module, and the start signal receiving module obtains the start signal of the cable traction machine.

[0041] At the initial stage of production line startup, the speed of the traction cable is relatively slow, and the number of pulses per unit time of the detection device cannot meet the set requirements. Therefore, the present invention adopts a time relay delay module output to prevent false alarms.

[0042] The delay time of the module delay is greater than or equal to the time from when the metal induction disk 2 starts to rotate to when its acceleration is less than the set value.

[0043] The induction switch 3 is an electromagnetic induction switch. When the induction protrusion 4 passes through the electromagnetic induction switch, the maximum distance between the induction protrusion 4 and the sensing end of the electromagnetic induction switch is within the sensing distance of the electromagnetic induction switch. Since the ribbon is relatively thin and soft, it is not easy to sample mechanically and it is difficult to achieve stable and accurate requirements. Therefore, electromagnetic induction sampling is adopted and the induction signal is processed by an electronic module.

[0044] The number of the sensing protrusions 4 is 12-24, and the pulse number threshold is adjusted according to the number of the sensing protrusions 4.

[0045] The present invention makes a metal induction disk with multi-point induction characteristics that is synchronized with the ribbon disk, and then installs a matching induction switch, so that a pulse signal that maps the rotation state of the ribbon disk is sampled, and the signal is processed by a pulse detection electronic module. The module outputs a switch quantity that drives an audible and visual alarm within a certain range of the ribbon disk rotation or static state, thereby realizing a broken ribbon alarm function. If the metal induction disk has 12-16 induction points, that is, the number of induction convex columns 4 is 12-16, the specific parameters are measured and calculated, and it is determined that the detection cycle is 1 second to 1.5 seconds, and the number of pulses is 2. If the metal induction disk has 16-24 induction points, that is, the number of induction convex columns 4 is 16-24, the specific parameters are measured and calculated, and the detection cycle can be adjusted to 0.5-1 second, or the number of pulses can be adjusted to 3, so that the entire device responds quickly and accurately.

[0046] In addition, the circuit design of this paper refers to Figure 2 , the whole circuit is powered by 24 volts, with low energy consumption and safety regulations. The present invention sets up two-way ribbon reels and corresponding induction circuits to facilitate operators to replace ribbons. The present invention installs a device operation indication, and the device start signal is taken from the switch output of the main traction start. At the initial stage of the production line startup of the present invention, the speed of the traction cable is relatively slow, and the number of pulses per unit time of the detection device does not meet the set requirements, so the time relay delay module output is used to prevent false alarms. Finally, the output logic of the pulse detection module of the present invention is inverted.

[0047] Installation and verification of the present invention: Installation points First, set the disk and the outer shaft to have enough friction to ensure that the induction disk is synchronized with the color setting disk. Secondly, the spacing between the induction points on the induction disk and the induction switch is uniform. Thirdly, observe the speed and acceleration when the production line starts, and adjust the delay time of the circuit accordingly. Fourthly, measure the stop time of the color ribbon disk when it is full and when it is close to empty, and adjust the detection cycle of the setting circuit accordingly.

[0048] Cost and energy consumption of the present invention: The cost of all electrical and electronic hardware of the present device is about 170 yuan, and the processing difficulty of the mechanical part is not high. The energy consumption in normal operation is between 15-30W, 15W in detection, and 30W in alarm, which meets the requirements of low-carbon manufacturing.

[0049] A cable ribbon pay-off broken ribbon alarm method, reference Figure 3 , using the above-mentioned cable ribbon pay-off and break alarm system, comprising the following steps: S1, determine whether the start signal receiving module receives the start signal of the cable traction machine. If so, the main control module performs delay judgment on the pulse data according to the delay time of the delay module. If not, return to S1; S2, judging whether the number of pulse signals obtained in a unit time is less than the pulse number threshold, if so, it is considered that the ribbon is broken, and the main control module controls the sound and light alarm module to sound and light alarm, if not, proceed to S3; S3, determine whether the start signal of the cable traction machine is disconnected, if so, reset the delay time and return to S1, if not, return to S2.

[0050] The delay time setting process is as follows: Sa, after the start signal receiving module receives the start signal of the cable traction machine, the main control module obtains the pulse data of the pulse detection module in real time, obtains the average rotation speed of the metal induction disk 2 according to the time interval of the pulse data, and obtains the acceleration of the metal induction disk 2 through the average rotation speed of the metal induction disk 2; The size of the metal sensing disk 2 is known, and it is assumed that the distance between the two sensing bosses 4 is known. The time interval for obtaining the pulse data represents the movement time from one sensing boss 4 to another sensing boss 4. The average rotational speed is calculated by the distance and movement time between the two sensing bosses 4, and the acceleration can be calculated from the average rotational speeds of two adjacent times.

[0051] Sb, determine whether the acceleration of the metal induction disk 2 is less than the set value. If so, record the total time from receiving the start signal of the cable traction machine to the moment when the acceleration of the metal induction disk 2 is less than the set value, and use the total time as the delay time. If not, proceed to Sc; The reason why the present invention uses the numerical value of acceleration for judgment is that as the ribbon on the ribbon reel 1 decreases, the weight of the ribbon reel 1 decreases, and the rotation speed will change. Judging by the average speed will lead to false alarms, while acceleration is the changing value of speed. Judging by the threshold of the changing value can reduce the false alarm rate.

[0052] Sc, the acceleration of the metal induction disk 2 is continuously judged until the duration exceeds a threshold value, and it is considered that the ribbon is broken, and the main control module controls the sound and light alarm module to sound and light alarm.

[0053] The beneficial effects of the present invention are as follows: the metal sensing disk 2 and the color ribbon disk 1 are coaxially fixed to ensure synchronization between the sensing disk and the color ribbon disk; the sensing switch 3 is used to sense the rotation of the metal sensing disk 2, thereby obtaining the rotation of the color ribbon disk 1; the number of pulses obtained by the sensing switch 3 reflects the rotation of the metal sensing disk 2; this physical property can be used to accurately determine whether the color ribbon is broken; when the color ribbon is broken, an audible and visual alarm is driven to quickly and effectively remind the workers.

Claims

1. A cable ribbon pay-off and break alarm system, characterized in that: The invention comprises a metal induction disc (2) and an induction switch (3) which are coaxially fixed with a ribbon disc (1); the metal induction disc (2) is provided with a plurality of induction convex pillars (4) which are evenly distributed on the circumference; the induction switch (3) is electrically connected to a pulse detection module; the pulse detection module is electrically connected to a main control module; the main control module is electrically connected to an audible and visual alarm module; when the induction convex pillar (4) passes through the induction switch (3), the pulse detection module receives a pulse signal and sends a pulse signal to the main control module; the main control module controls the audible and visual alarm module to generate an audible and visual alarm according to the relationship between the number of pulse signals obtained within a unit time and a pulse number threshold.

2. A cable ribbon pay-off and break alarm system according to claim 1, characterized in that: The ribbon disk (1) is provided with a plurality of threaded holes (6), the metal sensor disk (2) is provided with a plurality of countersunk bolt holes (5) at positions corresponding to the threaded holes (6), and bolts (7) are connected between the countersunk bolt holes (5) and the threaded holes (6).

3. A cable ribbon pay-off and break alarm system according to claim 1, characterized in that: A delay module is electrically connected between the pulse detection module and the main control module, and the delay module delays to obtain the pulse data of the pulse detection module. The main control module is electrically connected to a start signal receiving module, and the start signal receiving module obtains the start signal of the cable traction machine.

4. A cable ribbon pay-off and break alarm system according to claim 3, characterized in that: The delay time of the module delay is greater than or equal to the time length from when the metal induction disc (2) starts to rotate to when its acceleration is less than a set value.

5. A cable ribbon pay-off break alarm system according to any one of claims 1 to 4, characterized in that: The induction switch (3) is an electromagnetic induction switch, and when the induction convex column (4) passes through the electromagnetic induction switch, the maximum distance between the induction convex column (4) and the sensing end of the electromagnetic induction switch is within the sensing distance of the electromagnetic induction switch.

6. A cable ribbon pay-off and break alarm system according to any one of claims 1 to 4, characterized in that: The number of the sensing convex pillars (4) is 12-24, and the pulse number threshold is adjusted according to the number of the sensing convex pillars (4).

7. A cable ribbon pay-off break alarm method, using the cable ribbon pay-off break alarm system as claimed in claim 3, characterized in that: The following steps are involved: S1, determine whether the start signal receiving module receives the start signal of the cable traction machine. If so, the main control module performs delay judgment on the pulse data according to the delay time of the delay module. If not, return to S1; S2, judging whether the number of pulse signals obtained in a unit time is less than the pulse number threshold, if so, it is considered that the ribbon is broken, and the main control module controls the sound and light alarm module to sound and light alarm, if not, proceed to S3; S3, determine whether the start signal of the cable traction machine is disconnected, if so, reset the delay time and return to S1, if not, return to S2.

8. A cable ribbon pay-off and break alarm method according to claim 7, characterized in that: The setting process of the delay time is as follows: Sa, after the start signal receiving module receives the start signal of the cable traction machine, the main control module obtains the pulse data of the pulse detection module in real time, obtains the average rotation speed of the metal induction disk (2) according to the time interval of the pulse data, and obtains the acceleration of the metal induction disk (2) through the average rotation speed of the metal induction disk (2); Sb, judging whether the acceleration of the metal induction disk (2) is less than the set value, if so, recording the total time from receiving the start signal of the cable traction machine to the moment when the acceleration of the metal induction disk (2) is less than the set value, and taking the total time as the delay time, if not, proceeding to Sc; Sc, the acceleration of the metal sensing disk (2) is continuously judged until the duration exceeds a threshold value, and it is considered that the ribbon is broken, and the main control module controls the sound and light alarm module to sound and light alarm.

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