An intelligent wire drawing machine and its control system

Abstract

The present invention relates to the field of wire drawing machine control, and particularly to an intelligent wire drawing machine and its control system. The control system includes: a data acquisition unit for acquiring requirement analysis data; a data analysis unit for determining the working mode of the intelligent wire drawing machine according to the diameter of the target wire; a first control and adjustment unit for determining a pre-adjusted winding and unwinding speed difference according to the average sectional diameter of the target wire section and determining the adjustment methods of the winding roller and the unwinding roller according to the pre-adjusted winding and unwinding speed difference; a second control and adjustment unit for determining whether to adjust the temperature of the wire drawing die according to the area reduction rate of the wire drawing die and determining the temperature adjustment amount of the wire drawing die, and when the area reduction rates of all wire drawing dies are within a preset threshold range, determining whether to adjust the wire drawing speed according to the vibration frequency of the wire drawing guide pulley. The present invention adjusts the wire drawing machine accordingly according to the actual wire drawing preparation effect of the wire, improving the control efficiency of the wire drawing machine.

Description

Technical Field

[0001] The present invention relates to the field of wire drawing machine control, and particularly to an intelligent wire drawing machine and its control system. Background Art

[0002] An intelligent wire drawing machine is an automated control device used for stretching and elongating various types of wire materials, capable of achieving efficient, precise, and reliable wire drawing operations, and is widely used in industries such as wire and cable, optical fiber communication, and electronic device manufacturing. However, during the use of an intelligent wire drawing machine, due to inaccurate tension control, the diameter distribution of the wire material is uneven, making it difficult for the quality of the wire material to meet the preparation requirements. Therefore, how to accurately control the tension of the intelligent wire drawing machine to improve the quality of wire material preparation is an urgent problem to be solved at present.

[0003] Chinese Patent Publication No. CN108927414A discloses a wire drawing machine, including a wire winding blank, a direct drawing die, a direct drawing lathe body, and a drawing carriage. The wire winding blank is connected to the direct drawing die, and the direct drawing die is provided with a direct drawing lathe body on the other side relative to the wire winding blank. The direct drawing lathe body is connected to the drawing carriage, and a cutting device is provided at one end of the direct drawing lathe body. The above technical solution uses a direct drawing machine to draw the wire material to the required length for tension straightening. However, the above wire drawing machine has the following problems: it cannot adjust the drawing machine accordingly according to the actual drawing preparation effect of the wire material, resulting in poor preparation efficiency of the drawing machine. Summary of the Invention

[0004] For this reason, the present invention provides an intelligent wire drawing machine and its control system to solve the problem that in the prior art, the wire drawing machine cannot effectively adjust the working parameters of the wire drawing machine according to the actual drawing preparation effect of the wire material, resulting in the quality and preparation efficiency of the wire material prepared by the wire drawing machine being difficult to meet the user's requirements.

[0005] To achieve the above object, the present invention provides an intelligent wire drawing machine, including:

[0006] A housing;

[0007] A winding and unwinding roller group, which includes a pay-off roller and a take-up roller arranged inside the housing. The pay-off roller and the take-up roller have the same horizontal height. The pay-off roller is arranged at the wire inlet end of the intelligent wire drawing machine for winding and supporting the target wire material, and the take-up roller is arranged at the wire outlet end of the intelligent wire drawing machine for winding and recycling the target wire material after wire drawing;

[0008] A driving roller group, which includes several wire guiding wheels for supporting and transmitting the target wire material;

[0009] A die group, which includes several wire drawing dies. The distance between adjacent wire drawing dies is the same. The wire drawing die is used to change the cross-sectional area of the target wire material passing through the pressure gap;

[0010] A motor, which is connected to the unwinding roller and the winding roller, is used to convert electrical energy into the kinetic energy of the unwinding roller and the winding roller.

[0011] Further, the single wire drawing die includes a die body, which is a cylindrical structure, and a hollow area is penetrated along the central axis of the cylinder. The hollow area includes a frustum-shaped inlet area, a cylindrical pressure gap, and a frustum-shaped outlet area. The slant height of the outlet area is smaller than the slant height of the inlet area.

[0012] Wherein, the target wire enters from the inlet area of the die body and leaves the die body from the outlet area after passing through the pressure gap; when the target wire passes through the wire drawing die, the central axis of the target wire coincides with the central axis of the cylinder.

[0013] The present invention also provides a control system applied to the intelligent wire drawing machine, including:

[0014] A data acquisition unit, which is connected to the intelligent wire drawing machine and is used to acquire requirement analysis data;

[0015] A data analysis unit, which is connected to the data acquisition unit and is used to determine the working mode of the intelligent wire drawing machine according to the diameter of the target wire. The working mode of the intelligent wire drawing machine includes adjusting the roller speed of the intelligent wire drawing machine and adjusting the temperature and / or wire drawing speed of the wire drawing die of the intelligent wire drawing machine;

[0016] A first control and adjustment unit, which is respectively connected to the intelligent wire drawing machine and the data analysis unit, and is used to determine the pre-adjusted unwinding and winding speed difference according to the average value of the paragraph diameter of the target wire and determine the adjustment methods of the winding roller and the unwinding roller according to the pre-adjusted unwinding and winding speed difference;

[0017] A second control and adjustment unit, which is respectively connected to the intelligent wire drawing machine and the data analysis unit, and is used to determine whether to adjust the temperature of the wire drawing die according to the area reduction rate of the wire drawing die and determine the temperature adjustment amount of the wire drawing die. When the area reduction rates of all wire drawing dies are within the preset threshold range, it is determined whether to adjust the wire drawing speed according to the vibration frequency of the wire drawing guide wheel.

[0018] Further, the data analysis unit periodically detects the diameter stability reference quantity of the target wire and determines the working mode of the intelligent wire drawing machine according to the diameter stability reference quantity of the target wire;

[0019] If the diameter stability reference quantity of the target wire is in the state of the first preset diameter stability reference quantity, the data analysis unit determines to adjust the roller speed of the intelligent wire drawing machine;

[0020] If the diameter stability reference quantity of the target wire is in the state of the second preset diameter stability reference quantity, the data analysis unit determines to adjust the temperature of the wire drawing die and / or the wire drawing speed of the intelligent wire drawing machine;

[0021] If the diameter stability reference quantity of the target wire is in the state of the third preset diameter stability reference quantity, the data analysis unit determines that the intelligent wire drawing machine is in a normal working state and no adjustment is required.

[0022] Further, the first control and adjustment unit calculates the average paragraph diameter of the target wire under the first control and adjustment condition, and determines the pre-adjusted winding and unwinding speed difference according to the average paragraph diameter;

[0023] If the average paragraph diameter is greater than the preset preparation diameter, the average paragraph diameter and the pre-adjusted winding and unwinding speed difference are negatively correlated;

[0024] If the average paragraph diameter is less than the preset preparation diameter, the average paragraph diameter and the pre-adjusted winding and unwinding speed difference are positively correlated;

[0025] Wherein, the first control and adjustment condition is that the diameter stability reference quantity of the target wire is in the state of the first preset diameter stability reference quantity.

[0026] Further, the first control and adjustment unit determines the adjustment methods of the winding roller and the unwinding roller according to the pre-adjusted winding and unwinding speed difference under the second control and adjustment condition;

[0027] If the pre-adjusted winding and unwinding speed difference is less than the preset allowable pre-adjusted winding and unwinding speed difference, the first control and adjustment unit determines to adjust the speed of the winding roller;

[0028] If the pre-adjusted winding and unwinding speed difference is greater than or equal to the preset allowable pre-adjusted winding and unwinding speed difference, the first control and adjustment unit determines the speed adjustment amounts of the winding roller and the unwinding roller according to the winding amounts of the unwinding roller and the winding roller;

[0029] Wherein, the second control and adjustment condition is that the determination of the pre-adjusted winding and unwinding speed difference is completed.

[0030] Further, the first control and adjustment unit determines the speed adjustment amounts of the winding roller and the unwinding roller according to the winding amounts of the unwinding roller and the winding roller under the third control and adjustment condition;

[0031] If the winding amount of the unwinding roller is greater than or equal to the preset winding amount, the first control and adjustment unit determines to adjust the speed of the winding roller. When the adjustment of the winding roller is completed, the speed difference between the unwinding roller and the winding roller is the pre-adjusted winding and unwinding speed difference;

[0032] If the winding amount of the unwinding roller is less than the preset winding amount, the first control and adjustment unit determines the speed adjustment amount of the unwinding roller and the speed adjustment amount of the winding roller according to the difference between the winding amount of the unwinding roller and the preset winding amount. The speed adjustment amount of the unwinding roller is positively correlated with the difference in winding amount. When the adjustment of the winding roller is completed, the speed difference between the unwinding roller and the winding roller is the pre-adjusted unwinding and winding speed difference;

[0033] Among them, the difference in winding amount is the value obtained by subtracting the winding amount of the unwinding roller from the preset winding amount; the third control and adjustment condition is that the pre-adjusted unwinding and winding speed difference is greater than or equal to the preset allowable pre-adjusted unwinding and winding speed difference.

[0034] Further, the second control and adjustment unit sequentially detects the area reduction rate Gi of a single wire drawing die under the fourth control and adjustment condition;

[0035] If the area reduction rate of a single wire drawing die is greater than the preset area reduction rate, the second control and adjustment unit determines to reduce the temperature of the wire drawing die. The temperature reduction amount of the wire drawing die is positively correlated with the area reduction rate of the wire drawing die;

[0036] If the area reduction rate of a single wire drawing die is less than the preset area reduction rate, the second control and adjustment unit determines to increase the temperature of the wire drawing die. The temperature increase amount of the wire drawing die is negatively correlated with the area reduction rate of the wire drawing die;

[0037] Among them, the fourth control and adjustment condition is that the diameter stability reference amount of the target wire is in the second preset diameter stability reference amount state.

[0038] Further, the second control and adjustment unit detects the vibration frequency of the wire drawing guide wheel under the fifth control and adjustment condition;

[0039] If the vibration frequency of the wire drawing guide wheel is greater than the preset vibration frequency, the second control and adjustment unit determines to reduce the wire drawing speed according to the vibration frequency of the wire drawing guide wheel;

[0040] The reduction amount of the wire drawing speed is positively correlated with the vibration frequency of the wire drawing guide wheel;

[0041] Among them, the fifth control and adjustment condition is that the area reduction rate of each wire drawing die is equal to the preset area reduction rate.

[0042] Further, if the vibration frequency of the wire drawing guide wheel is less than or equal to the preset vibration frequency, the second control and adjustment unit determines that the intelligent wire drawing machine stops running and sends the determination information to the user to remind for manual fault detection.

[0043] Compared with the prior art, the beneficial effects of the present invention are as follows. The data analysis unit determines the working mode of the intelligent wire drawing machine according to the diameter of the target wire. The working mode of the intelligent wire drawing machine includes adjusting the roller speed of the intelligent wire drawing machine and adjusting the temperature of the wire drawing die and / or the wire drawing speed of the intelligent wire drawing machine. The stable reference quantity of the diameter of the target wire reflects whether the quality of the prepared wire meets the user's requirements, and a more effective working mode is selected. When adjusting the roller speed of the intelligent wire drawing machine, the first control and adjustment unit determines the pre-adjusted winding and unwinding speed difference according to the average paragraph diameter, determines the adjustment methods of the winding roller and the unwinding roller according to the pre-adjusted winding and unwinding speed difference, and determines the speed adjustment quantity of the winding roller and the unwinding roller according to the winding amounts of the unwinding roller and the winding roller, avoiding the problem that when only adjusting the winding roller or the unwinding roller, the inertia of the roller being adjusted is too large due to its excessive winding amount, resulting in a slow response speed. Further improving the adjustment efficiency of the wire drawing machine of the present invention, the second control and adjustment unit sequentially detects the area reduction rate of a single wire drawing die and determines whether to adjust the temperature of the wire drawing die under the fourth control and adjustment condition, making the temperature adjustment of the wire drawing machine more targeted compared with the prior art. The present invention performs corresponding control and adjustment on the wire drawing machine according to the actual wire preparation situation, improves the adjustment efficiency of the present invention, and further improves the quality of the prepared wire.

[0044] Further, in the present invention, the data analysis unit periodically detects the stable reference quantity of the diameter of the target wire, determines the working mode of the intelligent wire drawing machine. The stable reference quantity of the diameter of the target wire reflects whether the diameter of the prepared wire meets the user's requirements. The working mode of the intelligent wire drawing machine is determined according to the stable reference quantity of the diameter, making the selection of the working mode of the intelligent wire drawing machine more in line with the actual working situation and improving the working efficiency of the present invention.

[0045] Further, in the present invention, the first control and adjustment unit determines the pre-adjusted winding and unwinding speed difference according to the average paragraph diameter under the first control and adjustment condition, and determines the pre-adjusted winding and unwinding speed difference according to the actual preparation effect, making the value determination of the pre-adjusted winding and unwinding speed difference more accurate, and further improving the adjustment efficiency of the wire drawing machine.

[0046] Further, in the present invention, the first control and adjustment unit determines the adjustment methods of the winding roller and the unwinding roller according to the pre-adjusted winding and unwinding speed difference, and determines the speed adjustment quantity of the winding roller and the unwinding roller according to the winding amounts of the unwinding roller and the winding roller when the pre-adjusted winding and unwinding speed difference is greater than or equal to the preset allowable pre-adjusted winding and unwinding speed difference. Compared with the prior art solution of only adjusting the winding roller, the present invention uses the pre-adjusted winding and unwinding speed difference and the winding amounts of the unwinding roller and the winding roller as the judgment criteria, overcoming the problem that when the winding amount of the winding roller is too large, only adjusting the winding roller results in a slow adjustment response speed of the winding roller, and further improving the adjustment efficiency of the wire drawing machine of the present invention.

[0047] Further, in the present invention, the second control and adjustment unit adjusts the temperature of the wire drawing die according to the area reduction rate of the wire drawing die under the fourth control and adjustment condition, and adjusts the area reduction rate of the target wire by adjusting the die temperature, so that the actual area reduction rate more meets the user requirements.

[0048] Further, in the present invention, the second control and adjustment unit adjusts the wire drawing speed according to the vibration frequency of the wire drawing guide wheel under the fifth control and adjustment condition, avoiding the instability of the wire drawing process caused by too high vibration frequency, and improving the quality of the prepared wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 is a schematic structural diagram of the intelligent wire drawing machine according to an embodiment of the present invention;

[0050] Figure 2 is a side schematic view of the intelligent wire drawing machine according to an embodiment of the present invention;

[0051] Figure 3 is a schematic structural diagram of the wire drawing die according to an embodiment of the present invention;

[0052] Figure 4 is a unit connection diagram of the control system applied to the intelligent wire drawing machine according to an embodiment of the present invention;

[0053] In the figure: 1, housing; 2, unwinding roller; 3, winding roller; 4, wire drawing die; 5, target wire; 6, wire drawing guide wheel; 7, fixator; 8, dust cover; 9, closed position; 10, inlet area; 11, heating component; 12, outlet area; 13, slant height of the inlet area; 14, slant height of the outlet area. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0054] In order to make the objectives and advantages of the present invention clearer, the present invention will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0055] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0056] It should be noted that in the description of the present invention, the terms indicating the direction or positional relationship such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the direction or positional relationship shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0057] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Please refer to Figures 1 to 3 As shown in the figure, the present invention provides an intelligent wire drawing machine, including:

[0059] A housing 1, on which a dust cover 8 is provided. The dust cover 8 is made of a transparent material, so that users can observe the operating state of the equipment inside the housing 1 when the dust cover 8 is in the closed state. When the wire drawing machine is working, the dust cover 8 is in the closed position 9;

[0060] A winding and unwinding roller group, which includes an unwinding roller 2 and a winding roller 3 arranged inside the housing 1. The horizontal heights of the unwinding roller 2 and the winding roller 3 are the same. The unwinding roller 2 is arranged at the wire inlet end of the intelligent wire drawing machine to wind and support the target wire 5, and the winding roller 3 is arranged at the wire outlet end of the intelligent wire drawing machine to wind and recycle the target wire 5 after the wire drawing is completed;

[0061] The unwinding roller 2 and the winding roller 3 are respectively connected to the bottom of the housing 1 through fixators 7;

[0062] A transmission roller group, which includes a plurality of wire guiding wheels 6 to support and transmit the target wire 5;

[0063] A die group, which includes a plurality of wire drawing dies 4. The distances between adjacent wire drawing dies 4 are the same. The wire drawing die 4 is used to change the cross-sectional area of the target wire 5 passing through the pressure gap;

[0064] A motor, which is connected to the unwinding roller 2 and the winding roller to convert electrical energy into the kinetic energy of the unwinding roller 2 and the winding roller.

[0065] Specifically, the single wire drawing die 4 includes a die body. The die body is a cylindrical structure, and a hollow area is penetrated along the central axis of the cylinder. The hollow area includes a frustum-shaped inlet area 10, a cylindrical pressure gap, and a frustum-shaped outlet area 12. The pressure gap is arranged between the inlet area 10 and the outlet area 12, and the slant height 14 of the outlet area 12 is less than the slant height 13 of the inlet area 10;

[0066] Among them, the target wire 5 enters from the inlet area 10 of the die body and leaves the die body from the outlet area 12 after passing through the pressure gap;

[0067] A heating component 11 is also arranged inside the die body, and it is externally connected with a controller for heating the wire drawing die 4.

[0068] Please refer to Figure 4 shown in the figure, which is a unit connection diagram of the control system of the intelligent wire drawing machine to which the embodiment of the present invention is applied. The present invention also provides a control system applied to the intelligent wire drawing machine, including:

[0069] A data acquisition unit, which is connected to the intelligent wire drawing machine for acquiring requirement analysis data;

[0070] A data analysis unit, which is connected to the data acquisition unit for determining the working mode of the intelligent wire drawing machine according to the diameter of the target wire. The working mode of the intelligent wire drawing machine includes adjusting the roller speed of the intelligent wire drawing machine and adjusting the temperature and / or wire drawing speed of the wire drawing die of the intelligent wire drawing machine;

[0071] A first control and adjustment unit, which is respectively connected to the intelligent wire drawing machine and the data analysis unit for determining a pre-adjusted winding and unwinding speed difference according to the average value of the sectional diameters of the target wire and determining the adjustment methods of the winding roller and the unwinding roller according to the pre-adjusted winding and unwinding speed difference;

[0072] A second control and adjustment unit, which is respectively connected to the intelligent wire drawing machine and the data analysis unit for determining whether to adjust the temperature of the wire drawing die according to the area reduction rate of the wire drawing die and determining the temperature adjustment amount of the wire drawing die, and when the area reduction rates of each wire drawing die are all within a preset threshold range, determining whether to adjust the wire drawing speed according to the vibration frequency of the wire drawing guide pulley;

[0073] Among them, the requirement analysis data includes the diameter of the target wire, the speed of the winding roller, the speed of the unwinding roller, the temperature of the wire drawing die, the vibration frequency of the wire drawing guide pulley, the winding amount of the winding roller, and the winding amount of the unwinding roller.

[0074] The diameter of the target wire can be detected by a laser measuring device. The speeds of the winding roller and the unwinding roller are both rotational speeds, with the unit of revolutions per minute (r / min). A grating vibration sensor is arranged inside the wire drawing guide pulley for detecting the vibration frequency of the wire drawing guide pulley. Length counters are respectively arranged corresponding to the winding roller and the unwinding roller for respectively detecting the winding lengths of the winding roller and the unwinding roller, and recording the winding length of the winding roller as the winding amount of the winding roller and the winding length of the unwinding roller as the winding amount of the unwinding roller.

[0075] Specifically, the data analysis unit periodically detects the diameter stable reference amount of the target wire and determines the working mode of the intelligent wire drawing machine according to the diameter stable reference amount of the target wire;

[0076] If the diameter stability reference quantity of the target wire rod is in the first preset diameter stability reference quantity state, the data analysis unit determines to adjust the roller speed of the intelligent wire drawing machine;

[0077] If the diameter stability reference quantity of the target wire rod is in the second preset diameter stability reference quantity state, the data analysis unit determines to adjust the temperature of the wire drawing die and / or the wire drawing speed of the intelligent wire drawing machine;

[0078] If the diameter stability reference quantity of the target wire rod is in the third preset diameter stability reference quantity state, the data analysis unit determines that the intelligent wire drawing machine is in a normal working state and no adjustment is required;

[0079] Among them, the data analysis unit is provided with a monitoring period. The diameter stability reference quantity includes the number of over-standard diameters detected by the data acquisition unit in a single monitoring period and the values of each over-standard diameter. The number of times of detecting over-standard diameters is recorded as the number of over-standard diameters. The first preset diameter stability reference quantity state is that the number of over-standard diameters of the target wire rod is greater than the preset number of over-standard diameters and each over-standard diameter is greater than or less than the preset preparation diameter. The second preset diameter stability reference quantity state is that the number of over-standard diameters of the target wire rod is less than or equal to the preset number of over-standard diameters and there is an over-standard diameter within the preset damage range. The third preset diameter stability reference quantity state is that the number of over-standard diameters of the target wire rod is less than the preset number of over-standard diameters and the over-standard diameters are all within the allowable damage range.

[0080] The data acquisition unit detects the formed diameter of the target wire rod N times in a single monitoring period, and records the formed diameter that is greater than or less than the preset preparation diameter and within the allowable damage range as the over-standard diameter. The value of the preset number of over-standard diameters can be determined by the user according to the actual working scenario. The larger the preset number of over-standard diameters, the lower the diameter accuracy of the target wire rod. The smaller the preset number of over-standard diameters, the higher the diameter accuracy of the target wire rod. A value of the preset number of over-standard diameters is provided. The preset number of over-standard diameters is N / 2. The preset preparation diameter is the diameter of the wire rod required by the user, that is, the diameter of the wire rod that the intelligent wire drawing machine needs to prepare. The value of the allowable damage range is obtained by the user extracting the historical preparation records of preparing wire rods with the same preset preparation diameter in the historical preparation records. The wire rods that meet the user's requirements in the historical preparation records are recorded as allowable wire rods. The maximum diameter in the allowable wire rods is recorded as the allowable maximum value of the allowable damage range, and the minimum diameter in the allowable wire rods is recorded as the allowable minimum value of the allowable damage range. The values within the allowable damage range are all greater than or equal to the allowable minimum value and less than or equal to the allowable maximum value. The values within the preset damage range are not within the allowable damage range.

[0081] Specifically, the first control and adjustment unit calculates the average paragraph diameter of the target wire rod under the first control and adjustment condition, and determines the pre-adjusted winding and unwinding speed difference according to the average paragraph diameter;

[0082] The average value of the paragraph diameter is positively correlated with the pre-adjusted winding and unwinding speed difference;

[0083] Wherein, the first control adjustment condition is that the diameter stability reference amount of the target wire is in the state of the first preset diameter stability reference amount, the average value of the paragraph diameter is the average value of the over-standard diameters, and the pre-adjusted winding and unwinding speed difference is the absolute value of the speed difference between the winding roller and the unwinding roller when the adjustment of the winding roller and the unwinding roller is completed.

[0084] Specifically, the first control adjustment unit determines the adjustment methods of the winding roller and the unwinding roller according to the pre-adjusted winding and unwinding speed difference under the second control adjustment condition;

[0085] If the pre-adjusted winding and unwinding speed difference is less than the preset allowable pre-adjusted winding and unwinding speed difference, the first control adjustment unit determines to adjust the speed of the winding roller. Among them, the adjustment direction is that if the over-standard diameters are all greater than the preset preparation diameter, the speed of the winding roller is increased, and if the over-standard diameters are all less than the preset preparation diameter, the speed of the winding roller is decreased;

[0086] If the pre-adjusted winding and unwinding speed difference is greater than or equal to the preset allowable pre-adjusted winding and unwinding speed difference, the first control adjustment unit determines the speed adjustment amounts of the winding roller and the unwinding roller according to the winding amounts of the unwinding roller and the winding roller;

[0087] Wherein, the second control adjustment condition is that the determination of the pre-adjusted winding and unwinding speed difference is completed.

[0088] The first control adjustment unit is provided with a preset adjustment difference. The difference between the pre-adjusted winding and unwinding speed difference V and the absolute value V0 of the speed difference between the winding roller and the unwinding roller before adjustment is denoted as △V, △V = ∣V - V0∣. If △V is less than the preset adjustment difference, it is denoted that the pre-adjusted winding and unwinding speed difference is less than the preset allowable pre-adjusted winding and unwinding speed difference. If △V is greater than or equal to the preset adjustment difference, it is denoted that the pre-adjusted winding and unwinding speed difference is greater than or equal to the preset allowable pre-adjusted winding and unwinding speed difference. The value of the preset adjustment difference is obtained by the user through a control variable experiment. When only the speed of the winding roller is adjusted and △V takes different values, the corresponding response speed of the winding roller is detected. The response speed that meets the user's requirements is extracted, and the △V corresponding to the maximum response speed is denoted as the preset adjustment difference.

[0089] Specifically, the first control adjustment unit determines the speed adjustment amounts of the winding roller and the unwinding roller according to the winding amounts of the unwinding roller and the winding roller under the third control adjustment condition;

[0090] If the winding amount of the unwinding roller is greater than or equal to the preset winding amount, the first control and adjustment unit determines to adjust the speed of the winding roller. When the adjustment of the winding roller is completed, the speed difference between the unwinding roller and the winding roller is the pre-adjusted unwinding and winding speed difference. Among them, the adjustment direction is that if the over-standard diameters are all greater than the preset preparation diameter, the speed of the winding roller is increased; if the over-standard diameters are all less than the preset preparation diameter, the speed of the winding roller is decreased.

[0091] If the winding amount of the unwinding roller is less than the preset winding amount, the first control and adjustment unit determines the speed adjustment amount of the unwinding roller and the speed adjustment amount of the winding roller according to the winding amount difference between the unwinding roller winding amount and the preset winding amount. The speed adjustment amount of the unwinding roller is positively correlated with the winding amount difference. When the adjustment of the winding roller is completed, the speed difference between the unwinding roller and the winding roller is the pre-adjusted unwinding and winding speed difference. Among them, the adjustment direction is that if the over-standard diameters are all greater than the preset preparation diameter, the speed of the winding roller is increased and the speed of the unwinding roller is decreased; if the over-standard diameters are all less than the preset preparation diameter, the speed of the winding roller is decreased and the speed of the unwinding roller is increased.

[0092] Among them, the winding amount difference is the value obtained by subtracting the winding amount of the unwinding roller from the preset winding amount; the third control and adjustment condition is that the pre-adjusted unwinding and winding speed difference is greater than or equal to the preset allowable pre-adjusted unwinding and winding speed difference. The preset winding amount is 50% of the initial length of the target wire, and the initial length of the target wire is the length of the target wire before stretching.

[0093] Specifically, the second control and adjustment unit sequentially detects the area reduction rate Gi of a single wire drawing die under the fourth control and adjustment condition.

[0094] If the area reduction rate of a single wire drawing die is greater than the preset area reduction rate, the second control and adjustment unit determines to reduce the temperature of the wire drawing die. The temperature reduction amount of the wire drawing die is positively correlated with the area reduction rate of the wire drawing die.

[0095] If the area reduction rate of a single wire drawing die is less than the preset area reduction rate, the second control and adjustment unit determines to increase the temperature of the wire drawing die. The temperature increase amount of the wire drawing die is negatively correlated with the area reduction rate of the wire drawing die.

[0096] Among them, the fourth control and adjustment condition is that the diameter stability reference amount of the target wire is in the second preset diameter stability reference amount state.

[0097] The calculation formula for the area reduction rate Gi of a single wire drawing die is:

[0098] Gi = πri1² - πri2²

[0099] Wherein, ri1 is the radius of the target wire on one side of the inlet area of the i-th wire drawing die, ri2 is the radius of the target wire on one side of the outlet area of the i-th wire drawing die, and the preset area reduction rate is denoted as G0. G0 = πri1² - πri0², where ri0 is the radius of the cross-section perpendicular to the axis of the pressure gap of the i-th wire drawing die.

[0100] Specifically, the second control and adjustment unit detects the vibration frequency of the wire drawing guide pulley under the fifth control and adjustment condition.

[0101] If the vibration frequency of the wire drawing guide pulley is greater than the preset vibration frequency, the second control and adjustment unit determines to reduce and adjust the wire drawing speed according to the vibration frequency of the wire drawing guide pulley.

[0102] The reduction amount of the wire drawing speed is positively correlated with the vibration frequency of the wire drawing guide pulley.

[0103] Wherein, the fifth control and adjustment condition is that the area reduction rate of each wire drawing die is equal to the preset area reduction rate.

[0104] For the value of the preset vibration frequency, the user statistically analyzes the vibration frequency of the wire drawing guide pulley in the historical preparation records, extracts the vibration frequency of the wire drawing guide pulley corresponding to the target wire prepared to meet the user's requirements and calculates the average value, and records this average value as the preset vibration frequency.

[0105] Specifically, if the vibration frequency of the wire drawing guide pulley is less than or equal to the preset vibration frequency, the second control and adjustment unit determines that the intelligent wire drawing machine stops running and sends the determination information to the user to remind for manual fault detection.

[0106] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0107] The above are only the preferred embodiments of the present invention and are not used to limit the present invention; for those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A control system for an intelligent wire drawing machine, characterized in that: include: A data acquisition unit, which is connected to the intelligent wire drawing machine to acquire demand analysis data; A data analysis unit connected to the data acquisition unit, for determining a working mode of the intelligent wire drawing machine according to the diameter of the target wire, wherein the working mode of the intelligent wire drawing machine includes adjusting the roller speed of the intelligent wire drawing machine and adjusting the wire drawing die temperature and / or wire drawing speed of the intelligent wire drawing machine; A first control and adjustment unit, which is connected to the intelligent wire drawing machine and the data analysis unit respectively, and is used to determine the pre-adjusted winding and unwinding speed difference according to the average value of the segment diameter of the target wire and determine the adjustment mode of the winding roller and the unwinding roller according to the pre-adjusted winding and unwinding speed difference; The second control and adjustment unit is respectively connected to the intelligent wire drawing machine and the data analysis unit, and is used to determine whether to adjust the temperature of the wire drawing mold and the temperature adjustment amount of the wire drawing mold according to the surface reduction rate of the wire drawing mold. When the surface reduction rate of each wire drawing mold is within a preset threshold range, it is determined whether to adjust the wire drawing speed according to the vibration frequency of the wire drawing guide wheel.

2. The control system of the intelligent wire drawing machine according to claim 1 is characterized in that: The data analysis unit periodically detects the stable reference value of the diameter of the target wire and determines the working mode of the intelligent wire drawing machine according to the stable reference value of the diameter of the target wire; If the diameter stability reference value of the target wire is in a first preset diameter stability reference value state, the data analysis unit determines to adjust the roller speed of the intelligent wire drawing machine; If the diameter stability reference value of the target wire is in the second preset diameter stability reference value state, the data analysis unit determines to adjust the wire drawing die temperature and / or wire drawing speed of the intelligent wire drawing machine; If the diameter stability reference value of the target wire is in the third preset diameter stability reference value state, the data analysis unit determines that the intelligent wire drawing machine is in a normal working state and does not need to be adjusted.

3. The control system of the intelligent wire drawing machine according to claim 2 is characterized in that: The first control and adjustment unit calculates the average segment diameter of the target wire under the first control and adjustment condition, and determines the pre-adjusted retracting and releasing speed difference according to the average segment diameter; The average segment diameter is positively correlated with the pre-adjusted retraction and extension speed difference; Wherein, the first control adjustment condition is that the diameter stability reference value of the target wire is in a first preset diameter stability reference value state.

4. The control system of the intelligent wire drawing machine according to claim 3 is characterized in that: The first control and adjustment unit determines the adjustment mode of the winding roller and the unwinding roller according to the pre-adjusted winding and unwinding speed difference under the second control and adjustment condition; If the pre-adjusted retracting and unretracting speed difference is less than the preset allowable pre-adjusted retracting and unretracting speed difference, the first control and adjustment unit determines to adjust the speed of the reeling roller; If the pre-adjusted retracting and unwinding speed difference is greater than or equal to the preset allowable pre-adjusted retracting and unwinding speed difference, the first control and adjustment unit determines the speed adjustment amount of the rewinding roller and the unwinding roller according to the winding amount of the unwinding roller and the rewinding roller; Wherein, the second control adjustment condition is that the pre-adjustment of the retracting and extending speed difference is completed.

5. The control system of the intelligent wire drawing machine according to claim 4 is characterized in that: The first control and adjustment unit determines the speed adjustment amount of the winding roller and the unwinding roller according to the winding amount of the unwinding roller and the winding roller under the third control and adjustment condition; If the winding amount of the unwinding roller is greater than or equal to the preset winding amount, the first control and adjustment unit determines to adjust the speed of the winding roller. When the winding roller adjustment is completed, the speed difference between the unwinding roller and the winding roller is the preset unwinding speed difference. If the winding amount of the unwinding roller is less than the preset winding amount, the first control and adjustment unit determines the speed adjustment amount of the unwinding roller and the speed adjustment amount of the winding roller according to the winding amount difference between the unwinding roller and the preset winding amount, and the speed adjustment amount of the unwinding roller and the winding amount difference are positively correlated. When the winding roller adjustment is completed, the speed difference between the unwinding roller and the winding roller is the preset unwinding speed difference; Among them, the winding amount difference is the value obtained by subtracting the winding amount of the unwinding roller from the preset winding amount; and the third control adjustment condition is that the pre-adjusted retracting and releasing speed difference is greater than or equal to the preset allowable pre-adjusted retracting and releasing speed difference.

6. The control system of the intelligent wire drawing machine according to claim 5, characterized in that: The second control and adjustment unit sequentially detects the surface reduction rate of a single wire drawing die under the fourth control and adjustment condition; If the area reduction rate of a single wire drawing die is greater than the preset area reduction rate, the second control and adjustment unit determines to reduce the temperature of the wire drawing die, and the temperature reduction amount of the wire drawing die is positively correlated with the area reduction rate of the wire drawing die; If the surface reduction rate of a single wire drawing die is less than the preset surface reduction rate, the second control and adjustment unit determines to increase the temperature of the wire drawing die, and the temperature increase of the wire drawing die is negatively correlated with the surface reduction rate of the wire drawing die; The fourth control adjustment condition is that the diameter stability reference value of the target wire is in a second preset diameter stability reference value state.

7. The control system of the intelligent wire drawing machine according to claim 6, characterized in that: The second control and adjustment unit detects the vibration frequency of the wire guide wheel under the fifth control and adjustment condition; If the vibration frequency of the wire drawing guide wheel is greater than the preset vibration frequency, the second control and adjustment unit determines to reduce the wire drawing speed according to the vibration frequency of the wire drawing guide wheel; The reduction amount of the wire drawing speed is positively correlated with the vibration frequency of the wire drawing guide wheel; Among them, the fifth control adjustment condition is that the surface reduction rate of each wire drawing die is equal to the preset surface reduction rate.

8. The control system of the intelligent wire drawing machine according to claim 7, characterized in that: If the vibration frequency of the wire drawing guide wheel is less than or equal to the preset vibration frequency, the second control and adjustment unit determines that the intelligent wire drawing machine stops running and sends the determination information to the user to remind the user to perform manual fault detection.

9. An intelligent wire drawing machine using the control system described in any one of claims 1 to 8, characterized in that: include: case; A reeling roller group, comprising an unwinding roller and a reeling roller arranged inside the housing, the unwinding roller and the reeling roller having the same horizontal height, the unwinding roller being arranged at the wire inlet end of the intelligent wire drawing machine to wind and support the target wire, and the reeling roller being arranged at the wire outlet end of the intelligent wire drawing machine to wind and recycle the target wire after the wire drawing is completed; A transmission roller group, which includes a plurality of wire drawing guide wheels, is used to support and convey the target wire; A die set, comprising a plurality of wire drawing dies, wherein the distance between adjacent wire drawing dies is the same, and the wire drawing dies are used to change the cross-sectional area of ​​the target wire material passing through the pressure gap; The motor is connected to the unwinding roller and the winding roller and is used for converting the electrical energy into the kinetic energy of the unwinding roller and the winding roller.

10. The intelligent wire drawing machine according to claim 9, characterized in that: A single wire drawing die comprises a die body, which is a cylindrical structure, and a hollow area is opened along the central axis of the cylinder, the hollow area comprises a truncated cone-shaped inlet area, a cylindrical pressure gap and a truncated cone-shaped outlet area, and the slant height of the outlet area is smaller than the slant height of the inlet area; The target wire rod enters from the inlet area of ​​the die body and leaves the die body from the outlet area after passing through the pressure gap; when the target wire rod passes through the wire drawing die, the central axis of the target wire rod coincides with the central axis of the cylinder.

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