Method and device for acquiring rotating speed of spindle of silk winder

Abstract

The invention discloses a method and device for acquiring the rotating speed of a spindle of a silk winder, and the method comprises the steps: measuring a reference waveform of a detection signal in a period based on a standard rotating speed according to the distribution positions of a plurality of inductors on a tachometer disc; one period is the time when the tachometer disc rotates by one circle; the detection signal is a feedback signal, detected by the inductor, of an inductor carried on the tachometer disc synchronously rotating along with the spindle; a plurality of inductors are arranged on the side, opposite to the inductor, of the tachometer disc, the inductors are annularly and regularly distributed on the same side of the tachometer disc, and when the inductors rotate and pass through the inductor, the inductor detects that the inductors generate the feedback signals; acquiring the detection signal, calculating the real-time period of the detection signal according to the reference waveform, and calculating the rotating speed of the spindle according to the real-time period; the real-time period is the time when the test disc rotates by one circle.

Description

Technical Field

[0001] The present application relates to the technical field of silk winding machines, and in particular to a method and device for obtaining the spindle rotation speed of a silk winding machine. Background Art

[0002] According to the transmission mode of spindles, the silk winding machine can be divided into tangential belt type and single spindle single control type. The tangential belt type means that the machine uses a motor to drag the tangential belt, and the tangential belt drives multiple spindles. Generally, if a silk winding machine has 96 spindles, there are only one or two tangential belts to drag. In the single spindle single control type, each spindle is driven by an independent motor, and the spindle shaft is dragged by the motor shaft, and the spindle speed is synchronized with the motor speed. The advantage of tangential belt transmission is low cost, and the disadvantage is that multiple spindles are dragged by a tangential belt, the speed is greatly affected by mechanical transmission, the tightness of the tangential belt is difficult to adjust, and the friction between different spindles and the tangential belt is often inconsistent, resulting in inconsistent actual spindle speeds.

[0003] The tangential belt winder calculates the theoretical spindle speed by adding the motor speed of the driving wheel of the tangential belt to the mechanical transmission ratio of the driving wheel and the spindle. As a result, there is a deviation between the actual spindle speed and the theoretical speed of the tangential belt winder, and it is actually impossible to obtain an accurate and consistent spindle speed. The winder uses the spindle speed to calculate the yarn feeding speed of each spindle of the winder or the current diameter of the yarn tube, which will result in deviations, making the final shape of the yarn tube not meet expectations.

[0004] Therefore, it is very necessary to accurately obtain the spindle speed of the winding machine. Summary of the invention

[0005] In order to solve the above problems, the embodiments of the present application provide a method and device for obtaining the spindle rotation speed of a silk winding machine, which can accurately obtain the spindle rotation speed.

[0006] In a first aspect, an embodiment of the present application provides a method for obtaining a spindle speed of a silk winding machine, the method comprising: According to the distribution positions of the plurality of inductors on the speed measuring disc, a reference waveform of the detection signal within one cycle is determined based on the standard rotation speed; the one cycle is the time for the speed measuring disc to rotate one circle; The detection signal is a feedback signal of the sensor detecting the induction body carried on the speed measuring disc rotating synchronously with the spindle; a plurality of induction bodies are arranged on the side of the speed measuring disc opposite to the sensor, and the plurality of induction bodies are regularly distributed in a ring shape on the same side of the speed measuring disc, and when the induction body rotates and passes through the sensor, the sensor detects that the induction body generates the feedback signal; The detection signal is acquired, a real-time period of the detection signal is calculated according to the reference waveform, and the rotation speed of the spindle is calculated according to the real-time period; the real-time period is the time for the test disc to rotate one circle.

[0007] Preferably, the induction body comprises a first body and a second body, and a plurality of the first bodies and a plurality of the second bodies are distributed in a ring shape on the speed measuring disc; The detection signal includes a first characteristic signal and a second characteristic signal, wherein the first characteristic signal is a feedback signal when the sensor detects the first object, and the second characteristic signal is a feedback signal when the sensor detects the second object; The first characteristic signal and the second characteristic signal have at least one different parameter at the same rotation speed, and the different parameter includes a high-level voltage and a high-level duration.

[0008] Preferably, the induction body includes a first body, and a plurality of the first bodies are distributed at different densities on the speed measuring disk; The detection signal includes a first characteristic signal, which is a feedback signal when the sensor detects a first object.

[0009] Preferably, determining the reference waveform of the detection signal within a complete cycle based on the standard rotation speed specifically includes: The speed measuring disk is driven to rotate at a constant speed at the standard speed, and feedback signals of each of the inductors are obtained in sequence; Outputting a waveform diagram of the detection signal with a timestamp, a high-level voltage, and a high-level duration of each feedback signal, wherein the waveform diagram includes a feedback signal of each sensor; A continuous waveform of one cycle is extracted from the waveform diagram and output as the reference waveform; the reference waveform includes the feedback signal of each inductor on the speed measuring disk, and the feedback signal of each inductor appears only once.

[0010] Preferably, calculating the real-time period of the detection signal according to the reference waveform specifically includes: Acquire the detection signal, and output it as a first waveform of the detection signal; Amplifying or reducing the first waveform to obtain a second waveform matching the reference waveform; Obtaining the magnification or reduction multiple of the second waveform; The real-time period of the detection signal is calculated according to the deformation multiple and the period of the reference waveform.

[0011] Preferably, the first waveform is amplified or reduced to obtain a second waveform matching the reference waveform, specifically including: Using the feedback signal of the sensor as a characteristic signal; Extracting a characteristic signal in the first waveform, and enlarging or reducing it to be the same as a characteristic signal in the reference waveform, and calculating the deformation multiple of the enlargement or reduction; Amplifying or reducing the first waveform by the deformation multiple to obtain a second waveform; Determining whether the second waveform matches the reference waveform: If they match, the deformation multiple is output; If not, extracting the next characteristic signal in the first waveform and amplifying or reducing it to be the same as a characteristic signal in the reference waveform until the second waveform matches the reference waveform; The next characteristic signal is different from the previous characteristic signal.

[0012] Preferably, calculating the real-time period of the detection signal according to the reference waveform specifically includes: Acquire the detection signal, and output it as a first waveform of the detection signal; The first waveform within a period of time is intercepted and output as a second waveform; the speed measuring disk rotates multiple times within the interception time of the second waveform; Detecting a minimum continuous repetitive waveform in the first waveform, and outputting it as a calculation period of the detection signal; Extracting the continuous waveform within the calculation period to output a third waveform, obtaining the reference period of the reference waveform, and calculating the proportionality coefficient between the reference period and the calculation period; A fourth waveform is obtained by enlarging or reducing the third waveform based on the proportional coefficient, and determining whether the fourth waveform matches the reference waveform: If they match, the calculation cycle is output as a real-time cycle; If not, re-detecting the minimum continuous repetitive waveform in the first waveform until the fourth waveform matches the reference waveform.

[0013] In a second aspect, an embodiment of the present application provides a device for obtaining a spindle speed of a silk winding machine, the device comprising: Waveform measurement module: According to the distribution positions of multiple sensors on the speed measuring disc, the reference waveform of the detection signal within one cycle is measured based on the standard speed; one cycle is the time it takes for the speed measuring disc to rotate one circle; The detection signal is a feedback signal of the sensor detecting the inductor carried on the speed measuring disc that rotates synchronously with the spindle; a plurality of inductors are arranged on the side of the test disc opposite to the sensor, and the plurality of inductors are regularly distributed in a ring shape on the same side of the speed measuring disc. When the inductor rotates and passes through the sensor, the sensor detects that the inductor generates a feedback signal; Speed ​​calculation module: obtains the detection signal of the sensor, calculates the real-time period of the detection signal according to the reference waveform, and calculates the speed of the spindle according to the real-time period; the real-time period is the time it takes for the test disk to rotate one circle.

[0014] In a third aspect, an embodiment of the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the method provided in the first aspect or any possible implementation of the first aspect are implemented.

[0015] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method provided in the first aspect or any possible implementation manner of the first aspect.

[0016] The beneficial effects of the present invention are: The present invention relates to a method and device for obtaining the spindle rotation speed of a silk winding machine. The spindle rotation speed is measured based on a detection signal between a speed measuring disk that rotates synchronously with the spindle and a sensor, and relatively independent rotation speed calculation is performed for each spindle to accurately obtain the rotation speed of each spindle on the silk winding machine.

[0017] The speed measuring disc is composed of the basic structure of the spindle and the sensing body, which does not affect the original structure of the spindle. It only needs to install the sensing body and configure the sensor on the lower end disc or the upper end disc of the spindle to achieve accurate speed measurement of the spindle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic flow chart of a method for obtaining the spindle speed of a silk winding machine provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a device for obtaining the spindle speed of a silk winding machine provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application; Figure 4 It is the overall schematic diagram of the silk winding machine; Figure 5 A partial structural diagram of a speed measuring device for a silk winding machine; Figure 6 is a schematic diagram of a spindle testing device; Figure 7 This is the structural diagram of the speed measuring disc; Figure 8 for Figure 7 The schematic diagram of the detection signal waveform corresponding to the speed measuring disc shown; Fig. 9 This is a schematic diagram of the detection signal waveform corresponding to another speed measuring disc.

[0020] In the figure: 1, speed measuring disc; 2, sensor; 3, bracket; 4, spindle; 5, dragon belt; 6, base plate; 7, control box; 11, first body; 12, second body; 41, pulley. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0022] In the following introduction, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments of the present application, and different embodiments can be replaced or combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments recorded. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, although the embodiment may not be clearly recorded in the following text.

[0023] The following description provides examples and does not limit the scope, applicability or examples set forth in the claims. Changes may be made to the functions and arrangements of the elements described without departing from the scope of the present application. Various processes or components may be appropriately omitted, substituted or added to each example. For example, the described method may be performed in an order different from the order described, and various steps may be added, omitted or combined. In addition, features described in some examples may be combined in other examples.

[0024] See also Figure 1 , Figure 1 1 is a flow chart of a method for obtaining the spindle speed of a silk winding machine provided in an embodiment of the present application. In the embodiment of the present application, the method includes: S101 , according to the distribution positions of a plurality of sensors on the speed measuring disk, a reference waveform of a detection signal within one cycle is measured based on a standard speed.

[0025] The execution subject of the present application may be a control box of the silk winding machine, which cooperates with the detection signal of the sensor to accurately obtain the rotation speed of each spindle on the silk winding machine.

[0026] In the present application, one cycle is the time for the speed measuring disc to rotate one circle. The detection signal is the feedback signal of the sensor detecting the induction body carried on the speed measuring disc rotating synchronously with the spindle; a plurality of induction bodies are arranged on the side of the speed measuring disc opposite to the sensor, and the plurality of induction bodies are regularly distributed in a ring shape on the same side of the speed measuring disc. When the induction body rotates and passes through the sensor, the sensor detects that the induction body generates a feedback signal.

[0027] In the embodiment of the present application, the speed measuring disc may be the lower end disc of the spindle, the sensor is placed below the speed measuring disc, and the sensor may be mounted on the lower side ring surface of the speed measuring disc.

[0028] During the rotation of the spindle, when each induction body passes through the sensor, the sensor will generate a feedback signal. This feedback signal can be a high-level signal, and the duration is related to the rotation speed of the spindle and the size of the induction body.

[0029] Since the size of the inductor is constant, when the rotation speed changes, the high level duration of the feedback signal changes. A standard rotation speed can be set to measure the basic parameters of the feedback signal of the inductor at this rotation speed. The basic parameters include at least the high level voltage and the high level duration.

[0030] In the embodiment of the present application, step S101 specifically includes: The speed measuring disk is driven to rotate at a constant speed at the standard speed, and feedback signals of each of the inductors are obtained in sequence; Outputting a waveform diagram of the detection signal with a timestamp, a high-level voltage, and a high-level duration of each feedback signal, wherein the waveform diagram includes a feedback signal of each sensor; A continuous waveform of one cycle is extracted from the waveform diagram and output as the reference waveform; the reference waveform includes the feedback signal of each inductor on the speed measuring disk, and the feedback signal of each inductor appears only once.

[0031] In the present application, the rotation of the speed measuring disk makes the detection signal periodic. When the distribution of the sensing bodies is uniform, the periodicity is weak; when the distribution of the sensing bodies is uneven, the periodicity is more obvious; further, when there are multiple different individuals in the sensing bodies, the feedback signal exhibits different characteristics, and the periodicity of the detection signal is more obvious.

[0032] When the rotation speed is stable, the intervals between the feedback signals in the reference waveform correspond to the actual spacing. In this application, one rotation of the tachometer disk is regarded as a cycle. When calculating the rotation speed of the tachometer disk by detecting the signal, the calculation can also be performed in units of cycle to calculate the rotation speed of the tachometer disk within each cycle.

[0033] On this basis, the present application proposes a reference waveform as a standard, calculates the real-time period of the detection signal through the reference waveform, and then obtains the real-time rotation speed of the spindle.

[0034] In the present application, the sensing body may include a first body and a second body, and a plurality of first bodies and a plurality of second bodies are distributed in a ring shape on the speed measuring disk; correspondingly, the detection signal includes a first characteristic signal and a second characteristic signal, the first characteristic signal is a feedback signal when the sensor detects the first body, and the second characteristic signal is a feedback signal when the sensor detects the second body; wherein, the first characteristic signal and the second characteristic signal have at least one different parameter at the same speed, and the different parameters include a high level voltage and a high level duration.

[0035] At this time, the two feedback signals can appear alternately in the detection signal, and the periodicity of the detection signal can be clearly reflected. At the same time, the distribution law of the two sensing individuals can be adjusted to make the periodicity obvious.

[0036] As another feasible embodiment, the sensing body may include only the first body. In this case, the distribution density of the multiple first bodies on the speed measuring disk is different, which can ensure the obvious periodicity of the detection signal; the detection signal includes the first characteristic signal, which is the feedback signal when the sensor detects the first body. S102, acquiring a detection signal, calculating a real-time period of the detection signal according to a reference waveform, and calculating a rotation speed of the spindle according to the real-time period.

[0037] In an embodiment of the present application, the detection signal may have obvious periodicity, so as to facilitate comparison with a reference waveform, and then calculate the real-time period of the detection signal, and calculate the real-time rotation speed of the spindle through the real-time period; wherein the real-time period is the time for the speed measuring disk to rotate one circle.

[0038] In one possible implementation, obtaining the real-time period in step S102 specifically includes: Acquire the detection signal, and output it as a first waveform of the detection signal; Amplifying or reducing the first waveform to obtain a second waveform matching the reference waveform; Obtaining the magnification or reduction multiple of the second waveform; The real-time period of the detection signal is calculated according to the deformation multiple and the period of the reference waveform.

[0039] When the spindle speed is different from the standard speed, there is also a difference between the first waveform and the reference waveform. You only need to scale the first waveform to get the same waveform condition as the reference waveform. At this time, the periodic data of the first waveform can be obtained according to the scaling multiple, and the period of the first waveform can be taken as the real-time period.

[0040] In the present application, the reference waveform has the same characteristic signal as the first waveform, and scaling the first waveform to match the reference waveform can be performed based on the characteristic signal in the detection signal.

[0041] Exemplarily, the first waveform is enlarged or reduced to obtain a second waveform matching the reference waveform, specifically including: Using the feedback signal of the sensor as a characteristic signal; Extracting a characteristic signal in the first waveform, and enlarging or reducing it to be the same as a characteristic signal in the reference waveform, and calculating the deformation multiple of the enlargement or reduction; Amplifying or reducing the first waveform by the deformation multiple to obtain a second waveform; Determining whether the second waveform matches the reference waveform: If they match, the deformation multiple is output; If not, extracting the next characteristic signal in the first waveform and amplifying or reducing it to be the same as a characteristic signal in the reference waveform until the second waveform matches the reference waveform; It should be clear that when there is a mismatch, the next characteristic signal is different from the previous characteristic signal, while a characteristic signal selected in the reference waveform remains unchanged, so that the characteristic signal selected in the first waveform can match the characteristic signal selected in the reference waveform when selected multiple times.

[0042] In the present application, when the detection signal includes multiple characteristic signals, the initially selected characteristic signal may not match the characteristic signal selected in the reference waveform. It is only necessary to repeat the verification of another characteristic signal in the first waveform in advance, and the matching can be completed by repeated verification multiple times.

[0043] In this way, the periodicity of the detection signal may not be obvious, that is, the detection signal includes only one characteristic signal. Correspondingly, the speed measuring disk only carries the first body, and the waveform matching can be completed with only one verification.

[0044] In the embodiments of the present application, when the detection signal has obvious periodicity, its period can be directly determined based on the waveform to directly obtain the period of the detection signal, but this requires longer waveform data of the detection signal and also has the risk of misjudgment, which requires verification.

[0045] As another feasible embodiment, obtaining the real-time period in step S102 specifically includes: Acquire the detection signal, and output it as a first waveform of the detection signal; The first waveform within a period of time is intercepted and output as a second waveform; the speed measuring disk rotates multiple times within the interception time of the second waveform; Detecting a minimum continuous repetitive waveform in the first waveform, and outputting it as a calculation period of the detection signal; Extracting the continuous waveform within the calculation period to output a third waveform, obtaining the reference period of the reference waveform, and calculating the proportionality coefficient between the reference period and the calculation period; A fourth waveform is obtained by enlarging or reducing the third waveform based on the proportional coefficient, and determining whether the fourth waveform matches the reference waveform: If they match, the calculation cycle is output as a real-time cycle; If not, re-detecting the minimum continuous repetitive waveform in the first waveform until the fourth waveform matches the reference waveform.

[0046] In the embodiment of the present application, in order to detect the minimum continuous repetitive waveform in the first waveform, the waveform diagram of the first waveform needs to have obvious periodicity; if the sensing body only has the first body and the first body is evenly distributed, the minimum continuous waveform is always a single feedback signal and cannot correspond to a reference waveform of one period; but if the distribution density of the first body is different, such as Fig. 9 As shown in (c), the first body distribution density on the speed measuring disk is different, which can make the feedback signal have obvious periodicity, such as Fig. 9 As shown in (d), Figure (d) is a detection signal waveform diagram of one cycle.

[0047] Also, see Figure 7 , Figure 8 , Figure 7 The first body and the second body are relatively evenly distributed alternately on the speed measuring disk. Figure (a) is the expanded schematic diagram, and Figure (b) is the corresponding detection signal waveform (one cycle). It can be seen that there is a difference between the minimum continuous repetitive waveform and the actual cycle.

[0048] Based on this, when directly detecting the period of the first wave line, the number of feedback signals in the minimum continuous waveform can also be limited so that the selection range of the minimum continuous waveform is a complete period.

[0049] The speed measuring disc / spindle, sensor and control box can be regarded as a speed measuring device, such as Figure 4-Figure 7 As shown in , the speed measuring device can be implemented as follows: The speed measuring device includes a spindle 4, a sensor 2 and a control box 7. The lower end disk of the spindle 4 is a speed measuring disk 1. The speed measuring disk 1 is provided with a sensor that enables the sensor 2 to generate a feedback signal. A plurality of sensors are regularly or irregularly distributed on one side of the speed measuring disk 1. The detection end of the sensor 2 is close to and facing the side of the speed measuring disk 1 on which the sensor is mounted. The sensor 2 is electrically connected to the control box 7, and the control box 7 is used to calculate the rotation speed of the spindle 4 according to the occurrence period of the feedback signal.

[0050] The lower end disk of the spindle 4 is defined as the speed measuring disk 1. If conditions permit, the upper end disk of the spindle 4 can also be the speed measuring disk 1. In this case, a sensing body can be set on the upper side of the speed measuring disk 1, and the sensor 2 is suspended upside down above the speed measuring disk 1 with the detection end facing downward.

[0051] The sensor 2 can be an optical or magnetic sensor, etc., and can be configured with a corresponding induction body. The induction body can prompt the corresponding sensor to generate a signal. The size and physical properties of the induction body can be adjusted to produce different feedback signals from the sensor 2.

[0052] As an embodiment, the two types of sensors carried by the test disc 1 may include the test disc 1 itself, and only one sensor that can make the sensor 2 generate a positive signal (an effective and detectable feedback signal) may be set on the speed measuring disc 1, that is, the first body 11; the speed measuring disc 1 itself is used as another sensor. Preferably, in order not to change the existing product of the speed measuring disc 1, the speed measuring disc 1 itself may not make the sensor 2 generate a positive signal (that is, not respond or not generate a signal, or filter it out through technical means). As the speed measuring disc 1 rotates, only the feedback signal generated by the first body 11 passing through the sensor 2 each time it rotates is detected, so as to characterize the rotation speed of the spindle 4, and the rotation speed of the spindle can be calculated based on the period (or other parameters) of the detected feedback signal.

[0053] Exemplarily, the first body 11 and the speed measuring disc 1 are two sensing bodies that enable the sensor 2 to generate different feedback signals, and a plurality of first bodies 11 are evenly or unevenly distributed on the lower side of the speed measuring disc 1 in an annular shape.

[0054] Specifically, the first body 11 causes the sensor 2 to generate a first feedback signal, and the lower side of the speed measuring disc 1 causes the sensor 2 to generate a second feedback signal or not generate a feedback signal, and the second feedback signal is different from the first feedback signal. A coating may be provided on the lower side of the speed measuring disc 1 to achieve the purpose of generating a second feedback signal or not generating a feedback signal.

[0055] Taking the example that the speed measuring disc 1 does not generate a feedback signal to the sensor 2, the sensor 2 only generates a feedback signal to the rotation of the first body 11. The period length of the feedback signal can directly reflect the rotation speed of the spindle 4, but it cannot control the final speed, stagnation position, etc. of the spindle 4 well.

[0056] Therefore, the feedback signal can be distinguished from the head to the tail based on the distribution density of the first body 11 in the annular interval, so as to monitor the rotation direction, stagnation position, etc. of the spindle 4. For example, the distribution density is larger at one point in the annular distribution, and smaller at another point, so that the rotation direction, stagnation position, etc. of the spindle can be characterized on the feedback signal.

[0057] As another embodiment, two inductors capable of causing the sensor 2 to generate a positive signal may be mounted on the speed measuring disc 1, and the two inductors do not include the test disc 1 itself. The two inductors are arranged in a regular or irregular alternating distribution, so that the detection signal of the sensor 2 has a phase difference within a cycle, thereby identifying the rotation of the spindle 4, which is beneficial to measuring the rotation direction, rotation end speed, stagnation position, etc. of the spindle 4.

[0058] As a preferred embodiment, two sensing bodies that enable the sensor 2 to generate a positive signal, namely, a first body 11 and a second body 12, can be arranged on the speed measuring disk 1; as the speed measuring disk 1 rotates, the sensor 2 can detect the feedback signal generated by each rotation (passage) of the first body 11 and the second body 12, and the two different feedback signals appear periodically, and the rotation speed of the spindle can be calculated based on this periodic phenomenon.

[0059] Exemplarily, the first body 11 and the second body 12 are two types of induction bodies that enable the sensor 2 to generate different feedback signals, and a plurality of first bodies 11 and second bodies 12 are alternately distributed on the lower side of the speed measuring disc 1 .

[0060] On the basis of setting up two inductors (excluding the test disk 1 itself): As a feasible embodiment, the plurality of first bodies 11 are evenly distributed in a ring shape on the lower side of the speed measuring disc 1, the plurality of second bodies 12 are evenly distributed only between a group of two adjacent first bodies 11, and the plurality of first bodies 11 and second bodies 12 are in a ring shape.

[0061] Exemplarily, two second bodies 12 are arranged between two adjacent first bodies 11 in this group, and the corresponding feedback signal here can be used as a starting point. When determining the number of rotations of the spindle 4, the non-integer number of revolutions of the spindle 4 can be calculated based on this. At the same time, the tail speed, stagnation posture, etc. of the spindle 4 can also be judged.

[0062] As another feasible embodiment, a plurality of first bodies 11 and second bodies 12 are evenly distributed in a ring shape on the lower side of the speed measuring disc 1 , and the first bodies 11 and the second bodies 12 are alternately distributed.

[0063] The number of each alternation can be inconsistent, so that the wave pattern of the detection signal in one cycle has a clear starting point and an end point. For example, one second body 12 is alternately arranged between two first bodies 11 of the first group, and two second bodies 12 are alternately arranged between two first bodies 11 of the second group.

[0064] Of course, the number of alternations each time may also be uniform, for example, only one second body 12 is provided between two first bodies 11 , and only one first body 11 is provided between two second bodies 12 .

[0065] At the same time, the number of the second bodies 12 between two adjacent first bodies 11 is the same as or different from the number of the first bodies 11 between two adjacent second bodies 12, that is, between two first bodies 11, the number of the second bodies 12 is two, and the number of the first body 11 between two second bodies 12 can be one, such as Figure 7 shown.

[0066] When the sensor 2 is an optical sensor, the first body 11 and the second body 12 can both be reflectors, and the reflectivities can be different, so that the optical sensor can provide a discernible difference in the feedback signals of the two. When the sensor 2 is a magnetic sensor, the first body 11 and the second body 12 can both be magnets, and the magnetic forces can be different, so that the magnetic sensor can provide a discernible difference in the feedback signals of the two.

[0067] For example, taking an optical sensor as an example, to make the sensor 2 generate different feedback signals, the reflective surfaces of the first body 11 and the second body 12 can be adjusted to different sizes to make the reflected light different, thereby causing the feedback signal of the sensor 2 to change; of course, the reflectivity can also be adjusted.

[0068] The winding machine is equipped with a plurality of spindles 4, which are rotatably mounted on a base plate 6 of the winding machine, and a sensor 2 is provided corresponding to each spindle 4. The plurality of sensors 2 can be electrically connected to the control box 7 independently, so that the control box 7 can obtain the rotation speed of each spindle 4.

[0069] A pulley 41 is coaxially arranged below the spindle 4, and a tangential belt 5 is arranged inside the multiple spindles 4, and the tangential belt 5 synchronously drives the pulleys 41 of the multiple spindles 4. The sensor 2 can be located outside the tangential belt 5, above the substrate 6, and on the side of the pulley 41. It can be suspended and installed through the bracket 3.

[0070] Exemplarily, the bottom of the bracket 3 is fixedly connected to the substrate 6, and an assembly hole is opened on the upper part of the bracket 3, and the sensor 2 is fixedly connected to the bracket 3 through the assembly hole; the upper part of the bracket 3 is suspended directly below the speed measuring disk 1, and the assembly hole is directly below the rotation range of the sensor on the speed measuring disk 1, so that the sensor is within the detection range of the sensor 2.

[0071] It is understandable that the detection end of the sensor 2 can be arranged close to the induction body carried by the speed measuring disc 1, so as to obtain accurate detection data.

[0072] The following will be combined with the attached Figure 2 , the spindle speed acquisition device of the silk winding machine provided in the embodiment of the present application is introduced in detail. It should be noted that the attached Figure 2 The spindle speed acquisition device of the silk winding machine shown is used to implement the present application Figure 1 For the convenience of explanation, only the part related to the embodiment of the present application is shown. For the specific technical details not disclosed, please refer to the present application. Figure 1 The embodiment shown.

[0073] See also Figure 2 , Figure 2 Schematic diagram of the structure of a device for obtaining the spindle speed of a silk winding machine provided in an embodiment of the present application. Figure 2 As shown, the device comprises: Waveform determination module 201: according to the distribution positions of multiple inductors on the speed measuring disk, based on the standard speed measurement, the reference waveform of the detection signal within one cycle; one cycle is the time for the speed measuring disk to rotate one circle; The detection signal is a feedback signal of the sensor detecting the inductor carried on the speed measuring disc that rotates synchronously with the spindle; a plurality of inductors are arranged on the side of the test disc opposite to the sensor, and the plurality of inductors are regularly distributed in a ring shape on the same side of the speed measuring disc. When the inductor rotates and passes through the sensor, the sensor detects that the inductor generates a feedback signal; The rotation speed calculation module 202 obtains the detection signal of the sensor, calculates the real-time period of the detection signal according to the reference waveform, and calculates the rotation speed of the spindle according to the real-time period; the real-time period is the time for the test disc to rotate one circle.

[0074] Those skilled in the art can clearly understand that the technical solutions of the embodiments of the present application can be implemented with the help of software and / or hardware. The "unit" and "module" in this specification refer to software and / or hardware that can independently complete or cooperate with other components to complete specific functions, where the hardware can be, for example, a field programmable gate array (FPGA), an integrated circuit (IC), etc.

[0075] Each processing unit and / or module of the embodiments of the present application may be realized by an analog circuit that implements the functions described in the embodiments of the present application, or may be realized by software that executes the functions described in the embodiments of the present application.

[0076] See also Figure 3 , which shows a schematic diagram of the structure of an electronic device involved in an embodiment of the present application, the electronic device can be used to implement Figure 1 The method in the embodiment shown. Figure 3 As shown, the electronic device 300 may include: at least one central processor 301 , at least one network interface 304 , a user interface 303 , a memory 305 , and at least one communication bus 302 .

[0077] The communication bus 302 is used to realize the connection and communication between these components.

[0078] The user interface 303 may include a display screen (Display) and a camera (Camera). Optionally, the user interface 303 may also include a standard wired interface and a wireless interface.

[0079] The network interface 304 may optionally include a standard wired interface or a wireless interface (such as a WI-FI interface).

[0080] Among them, the central processing unit 301 may include one or more processing cores. The central processing unit 301 uses various interfaces and lines to connect various parts of the entire electronic device 300, and executes various functions and processes data of the terminal 300 by running or executing instructions, programs, code sets or instruction sets stored in the memory 305, and calling data stored in the memory 305. Optionally, the central processing unit 301 can be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programmable Logic Array, PLA). The central processing unit 301 can integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU) and a modem. Among them, the CPU mainly processes the operating system, user interface and application programs; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the central processing unit 301, and it can be implemented separately through a chip.

[0081] Among them, the memory 305 may include a random access memory (Random Access Memory, RAM) and may also include a read-only memory (Read-Only Memory). Optionally, the memory 305 includes a non-transitory computer-readable storage medium. The memory 305 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 305 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 305 may optionally be at least one storage device located away from the aforementioned central processor 301. As Figure 3 As shown, the memory 305 as a computer storage medium may include an operating system, a network communication module, a user interface module, and program instructions.

[0082] exist Figure 3 In the electronic device 300 shown, the user interface 303 is mainly used to provide an input interface for the user and obtain the data input by the user; and the central processor 301 can be used to call the winding machine spindle speed acquisition application stored in the memory 305, and specifically perform the following operations: According to the distribution positions of the multiple inductors on the speed measuring disc, the reference waveform of the detection signal within one cycle is determined based on the standard speed; one cycle is the time it takes for the speed measuring disc to rotate one circle; The detection signal is a feedback signal of the sensor detecting the induction body carried on the speed measuring disc that rotates synchronously with the spindle; a plurality of induction bodies are arranged on the side of the speed measuring disc opposite to the sensor, and the plurality of induction bodies are regularly distributed in a ring shape on the same side of the speed measuring disc. When the induction body rotates and passes through the sensor, the sensor detects that the induction body generates a feedback signal; The detection signal is obtained, the real-time period of the detection signal is calculated according to the reference waveform, and the rotation speed of the spindle is calculated according to the real-time period; the real-time period is the time for the test disc to rotate one circle.

[0083] The present application also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of the above method are implemented. The computer-readable storage medium may include, but is not limited to, any type of disk, including a floppy disk, an optical disk, a DVD, a CD-ROM, a micro drive, and a magneto-optical disk, a ROM, a RAM, an EPROM, an EEPROM, a DRAM, a VRAM, a flash memory device, a magnetic card or an optical card, a nanosystem (including a molecular memory IC), or any type of medium or device suitable for storing instructions and / or data.

[0084] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0085] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0086] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0087] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0088] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0089] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a memory, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, disk or optical disk and other media that can store program codes.

[0090] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by entering a program to instruct related hardware, and the program may be stored in a computer-readable memory, which may include a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0091] The above is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the specification and practicing the disclosure here, those skilled in the art will easily think of the implementation scheme of the present disclosure. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure. The description and examples are regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A method for obtaining the spindle speed of a silk winding machine, characterized in that: The method comprises: According to the distribution positions of the plurality of inductors on the speed measuring disc, a reference waveform of the detection signal within one cycle is determined based on the standard rotation speed; the one cycle is the time for the speed measuring disc to rotate one circle; The detection signal is a feedback signal of the sensor detecting the induction body carried on the speed measuring disc rotating synchronously with the spindle; a plurality of induction bodies are arranged on the side of the speed measuring disc opposite to the sensor, and the plurality of induction bodies are regularly distributed in a ring shape on the same side of the speed measuring disc, and when the induction body rotates and passes through the sensor, the sensor detects that the induction body generates the feedback signal; The detection signal is acquired, a real-time period of the detection signal is calculated according to the reference waveform, and the rotation speed of the spindle is calculated according to the real-time period; the real-time period is the time for the test disc to rotate one circle.

2. The method according to claim 1, characterized in that The induction body includes a first body and a second body, and a plurality of the first bodies and a plurality of the second bodies are distributed in a ring shape on the speed measuring disk; The detection signal includes a first characteristic signal and a second characteristic signal, wherein the first characteristic signal is a feedback signal when the sensor detects the first object, and the second characteristic signal is a feedback signal when the sensor detects the second object; The first characteristic signal and the second characteristic signal have at least one different parameter at the same rotation speed, and the different parameter includes a high-level voltage and a high-level duration.

3. The method according to claim 1, characterized in that The induction body includes a first body, and a plurality of the first bodies are distributed on the speed measuring disk at different densities; The detection signal includes a first characteristic signal, which is a feedback signal when the sensor detects a first object.

4. The method according to claim 1, characterized in that: Determining the reference waveform of the detection signal within a complete cycle based on the standard rotation speed specifically includes: The speed measuring disk is driven to rotate at a constant speed at the standard speed, and feedback signals of each of the inductors are obtained in sequence; Outputting a waveform diagram of the detection signal with a timestamp, a high-level voltage, and a high-level duration of each feedback signal, wherein the waveform diagram includes a feedback signal of each sensor; A continuous waveform of one cycle is extracted from the waveform diagram and output as the reference waveform; the reference waveform includes the feedback signal of each inductor on the speed measuring disk, and the feedback signal of each inductor appears only once.

5. The method according to claim 1, characterized in that Calculating the real-time period of the detection signal according to the reference waveform specifically includes: Acquire the detection signal, and output it as a first waveform of the detection signal; Amplifying or reducing the first waveform to obtain a second waveform matching the reference waveform; Obtaining the magnification or reduction multiple of the second waveform; The real-time period of the detection signal is calculated according to the deformation multiple and the period of the reference waveform.

6. The method according to claim 5, characterized in that Amplifying or reducing the first waveform to obtain a second waveform matching the reference waveform specifically includes: Using the feedback signal of the sensor as a characteristic signal; Extracting a characteristic signal in the first waveform, and enlarging or reducing it to be the same as a characteristic signal in the reference waveform, and calculating the deformation multiple of the enlargement or reduction; Amplifying or reducing the first waveform by the deformation multiple to obtain a second waveform; Determining whether the second waveform matches the reference waveform: If they match, the deformation multiple is output; If not, extracting the next characteristic signal in the first waveform and amplifying or reducing it to be the same as a characteristic signal in the reference waveform until the second waveform matches the reference waveform; The next characteristic signal is different from the previous characteristic signal.

7. The method according to claim 1, characterized in that Calculating the real-time period of the detection signal according to the reference waveform specifically includes: Acquire the detection signal, and output it as a first waveform of the detection signal; The first waveform within a period of time is intercepted and output as a second waveform; the speed measuring disk rotates multiple times within the interception time of the second waveform; Detecting a minimum continuous repetitive waveform in the first waveform, and outputting it as a calculation period of the detection signal; Extracting the continuous waveform within the calculation period to output a third waveform, obtaining the reference period of the reference waveform, and calculating the proportionality coefficient between the reference period and the calculation period; A fourth waveform is obtained by enlarging or reducing the third waveform based on the proportional coefficient, and determining whether the fourth waveform matches the reference waveform: If they match, the calculation cycle is output as a real-time cycle; If not, re-detecting the minimum continuous repetitive waveform in the first waveform until the fourth waveform matches the reference waveform.

8. A device for obtaining the spindle speed of a silk winding machine, characterized in that: include: Waveform measurement module: according to the distribution positions of multiple sensors on the speed measuring disk, the reference waveform of the detection signal within one cycle is measured based on the standard speed; One cycle is the time it takes for the tachometer disk to make one rotation; The detection signal is a feedback signal of the sensor detecting the inductor carried on the speed measuring disc that rotates synchronously with the spindle; a plurality of inductors are arranged on the side of the test disc opposite to the sensor, and the plurality of inductors are regularly distributed in a ring shape on the same side of the speed measuring disc. When the inductor rotates and passes through the sensor, the sensor detects that the inductor generates a feedback signal; Speed ​​calculation module: obtains the detection signal of the sensor, calculates the real-time period of the detection signal according to the reference waveform, and calculates the speed of the spindle according to the real-time period; the real-time period is the time it takes for the test disk to rotate one circle.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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