Intelligent wire drawer and control system thereof

Abstract

The invention relates to the field of wire drawer control, in particular to an intelligent wire drawer and a control system thereof, and the control system comprises a data acquisition unit which is used for acquiring demand analysis data; the data analysis unit is used for determining the working mode of the intelligent wire drawer according to the diameter of the target wire; the first control adjusting unit is used for determining a preset winding and unwinding speed difference according to the average value of the paragraph diameters of the target wire rod and determining the adjusting mode of the winding roller and the unwinding roller according to the preset winding and unwinding speed difference; the second control adjusting unit is used for determining whether the temperature of the wire drawing die is adjusted or not and determining the temperature adjusting amount of the wire drawing die according to the area reduction rate of the wire drawing die, and determining whether the wire drawing speed is adjusted or not according to the vibration frequency of the wire drawing guide wheel when the area reduction rate of each wire drawing die is within the preset threshold value range; the wire drawing machine is correspondingly adjusted according to the actual wire drawing preparation effect, and the control efficiency of the wire drawing machine is improved.

Description

Technical Field

[0001] The invention relates to the field of wire drawing machine control, and in particular to an intelligent wire drawing machine and a control system thereof. Background Art

[0002] The intelligent wire drawing machine is an automated control device used to stretch and extend various types of wires. It can achieve efficient, accurate and reliable wire drawing operations and is widely used in industries such as wire and cable, optical fiber communications, and electronic equipment manufacturing. However, during the use of the intelligent wire drawing machine, the inaccurate tension control causes uneven distribution of wire diameters, making it difficult for the wire quality to meet the preparation requirements. Therefore, how to accurately control the tension of the intelligent wire drawing machine to improve the quality of wire preparation is an urgent problem to be solved.

[0003] Chinese patent publication number CN108927414A discloses a wire stretching machine, including a winding blank, a straight-drawing lathe die, a straight-drawing lathe bed and a stretching trolley, the winding blank is connected to the straight-drawing lathe die, the straight-drawing lathe die is provided with a straight-drawing lathe bed on the other side of the winding blank, the straight-drawing lathe bed is connected to the stretching trolley, and a cutting device is provided at one end of the straight-drawing lathe bed. The above technical solution uses a straight-drawing machine to pull the wire to the desired length for tension straightening, but the above wire stretching machine has the following problems: the stretching machine cannot be adjusted accordingly according to the actual stretching preparation effect of the wire, resulting in poor preparation efficiency of the stretching machine. Summary of the invention

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

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

[0006] Further, the single wire drawing die includes a die body, which is a cylindrical structure, and a hollow area is opened along the central axis of the cylinder, the hollow area includes 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.

[0007] The present invention also provides a control system applied to the intelligent wire drawing machine, comprising: A data acquisition unit, connected to the intelligent wire drawing machine, for acquiring demand analysis data; A data analysis unit, which is connected to the intelligent wire drawing machine and the data acquisition unit, respectively, and is used to determine the working mode of the intelligent wire drawing machine according to the diameter of the target wire, and 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 respectively connected to the intelligent wire drawing machine, the data analysis unit and the data acquisition unit, 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, the data analysis unit and the data acquisition 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, and when the surface reduction rate of each wire drawing mold is within a preset threshold range, determine whether to adjust the wire drawing speed according to the vibration frequency of the wire drawing guide wheel.

[0008] Further, 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.

[0009] Furthermore, 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; If the average segment diameter is greater than the preset preparation diameter, the average segment diameter is negatively correlated with the preset retracting and releasing speed difference; If the average segment diameter is smaller than the preset preparation diameter, the average segment diameter is positively correlated with the preset retracting and releasing 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.

[0010] Further, 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 determined to be completed.

[0011] Further, 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 is positively correlated with the winding amount difference. When the winding roller is adjusted, 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.

[0012] Further, the second control and adjustment unit sequentially detects the surface reduction rate Gi 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.

[0013] Further, 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.

[0014] Furthermore, 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.

[0015] Compared with the prior art, the beneficial effect of the present invention lies in that the data analysis unit determines the working mode of the intelligent wire drawing machine according to the diameter of the target wire, and 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. The stable reference amount of the diameter of the target wire reflects whether the quality of the prepared wire meets the user's needs, 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 value of the segment diameter, determines the adjustment method of the winding roller and the unwinding roller according to the pre-adjusted winding and unwinding speed difference, and adjusts the winding roller and the unwinding roller according to the unwinding roller. The winding amount of the roller and the winding roller determines the speed adjustment amount of the winding roller and the unwinding roller, avoiding the problem of slow response speed due to excessive inertia of the adjusted roller caused by excessive winding amount when only the winding roller or the unwinding roller is adjusted, further improving the adjustment efficiency of the wire drawing machine of the present invention. The second control and adjustment unit detects the reduction rate of a single wire drawing die in turn under the fourth control and adjustment conditions and determines whether to adjust the temperature of the wire drawing die, so that the temperature adjustment of the wire drawing machine is 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, thereby improving the adjustment efficiency of the present invention and thereby improving the quality of the prepared wire.

[0016] Furthermore, the data analysis unit in the present invention periodically detects the stable reference value of the diameter of the target wire to determine the working mode of the intelligent wire drawing machine. The stable reference value of the diameter of the target wire reflects whether the diameter of the prepared wire meets the needs of the user. The working mode of the intelligent wire drawing machine is determined according to the stable reference value of the diameter, so that the selection of the working mode of the intelligent wire drawing machine is more in line with the actual working conditions, thereby improving the working efficiency of the present invention.

[0017] Furthermore, the first control and adjustment unit in the present invention determines the pre-adjusted retraction and release speed difference according to the average value of the segment diameter under the first control and adjustment condition, and determines the pre-adjusted retraction and release speed difference according to the actual preparation effect, so that the value of the pre-adjusted retraction and release speed difference is determined more accurately, thereby improving the adjustment efficiency of the wire drawing machine.

[0018] Furthermore, the first control and adjustment unit in the present invention determines the adjustment method of the winding roller and the unwinding roller according to the pre-adjusted winding and unwinding speed difference, and 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 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 amount of the unwinding roller and the winding roller as judgment criteria, thereby overcoming the problem of slow adjustment response speed of the winding roller caused by only adjusting the winding roller when the winding amount of the winding roller is too large, thereby improving the adjustment efficiency of the wire drawing machine of the present invention.

[0019] Furthermore, the second control and adjustment unit in the present invention adjusts the temperature of the wire drawing die according to the surface reduction rate of the wire drawing die under the fourth control and adjustment conditions, and adjusts the surface reduction rate of the target wire by adjusting the die temperature, so that the actual surface reduction rate is more in line with user needs.

[0020] Furthermore, 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, so as to avoid instability in the wire drawing process caused by excessive vibration frequency, thereby improving the quality of the prepared wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an intelligent wire drawing machine according to an embodiment of the present invention; Figure 2 It is a side schematic diagram of an intelligent wire drawing machine according to an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a wire drawing die according to an embodiment of the present invention; Figure 4 A unit connection diagram of a control system applied to the intelligent wire drawing machine according to an embodiment of the present invention; In the figure: 1, shell; 2, unwinding roller; 3, winding roller; 4, wire drawing die; 5, target wire; 6, wire drawing guide wheel; 7, holder; 8, dust cover; 9, closed position; 10, inlet area; 11, heating component; 12, outlet area; 13, inclined height of inlet area; 14, inclined height of outlet area. DETAILED DESCRIPTION

[0022] In order to make the objects and advantages of the present invention more clearly understood, the present invention is 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.

[0023] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0024] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the 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. Therefore, it cannot be understood as a limitation on the present invention.

[0025] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of 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.

[0026] See also Figures 1 to 3 As shown, the present invention provides an intelligent wire drawing machine, comprising: The housing 1 is provided with a dust cover 8, which is made of a transparent material so that the user can observe the operating status of the equipment inside the housing 1 when the dust cover 8 is closed. When the wire drawing machine is working, the dust cover 8 is located in the closed position 9; A reeling roller group, comprising an unwinding roller 2 and a reeling roller 3 arranged inside the housing 1, the unwinding roller 2 and the reeling roller 3 have the same horizontal height, the unwinding roller 2 is arranged at the wire inlet end of the intelligent wire drawing machine, and is used to wind and support the target wire 5, and the reeling roller 3 is arranged at the wire outlet end of the intelligent wire drawing machine, and is used to wind and recycle the target wire 5 after the wire drawing is completed; The unwinding roller 2 and the winding roller 3 are connected to the bottom of the housing 1 through a fixing device 7 respectively; A transmission roller group, which includes a plurality of wire drawing guide wheels 6, for supporting and conveying the target wire 5; A die set, comprising a plurality of wire drawing dies 4, wherein the distance between adjacent wire drawing dies 4 is the same, and the wire drawing dies 4 are used to change the cross-sectional area of ​​the target wire 5 passing through the pressure gap; The motor is connected to the unwinding roller 2 and the winding roller, and is used for converting electrical energy into kinetic energy of the unwinding roller 2 and the winding roller.

[0027] Specifically, the single wire drawing die 4 includes a die body, which is a cylindrical structure, and a hollow area is opened along the central axis of the cylinder, and the hollow area includes a truncated cone-shaped inlet area 10, a cylindrical pressure gap and a truncated cone-shaped outlet area 12, and the pressure gap is arranged between the inlet area 10 and the outlet area 12, and the inclined height 14 of the outlet area 12 is less than the inclined height 13 of the inlet area 10; The target wire 5 enters the die body from an inlet area 10 and leaves the die body from an outlet area 12 after passing through the pressure gap; A heating component 11 is also provided in the mold body, and is externally connected to a controller for heating the wire drawing mold 4 .

[0028] See also Figure 4As shown, it is a unit connection diagram of a control system applied to the intelligent wire drawing machine according to an embodiment of the present invention. The present invention also provides a control system applied to the intelligent wire drawing machine, including: A data acquisition unit, which is connected to the intelligent wire drawing machine and is used to acquire demand analysis data; A data analysis unit, which is connected to the intelligent wire drawing machine and the data acquisition unit, respectively, and is used to determine the working mode of the intelligent wire drawing machine according to the diameter of the target wire, and 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 respectively connected to the intelligent wire drawing machine, the data analysis unit and the data acquisition unit, 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; a second control and adjustment unit, which is respectively connected to the intelligent wire drawing machine, the data analysis unit and the data acquisition unit, and is used to determine whether to adjust the temperature of the wire drawing die and the temperature adjustment amount of the wire drawing die according to the surface reduction rate of the wire drawing die, and when the surface reduction rate of each wire drawing die is within a preset threshold range, determine whether to adjust the wire drawing speed according to the vibration frequency of the wire drawing guide wheel; Among them, the demand 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 wheel, the winding amount of the winding roller and the winding amount of the unwinding roller.

[0029] 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, and the unit is revolutions / min. A grating vibration sensor is arranged in the wire pulling guide wheel to detect the vibration frequency of the wire pulling guide wheel, and the winding roller and the unwinding roller are respectively provided with length counters to respectively detect the winding lengths of the winding roller and the unwinding roller and record the winding length of the winding roller as the winding amount of the winding roller, and record the winding length of the unwinding roller as the winding amount of the unwinding roller.

[0030] Specifically, the data analysis unit periodically detects a stable reference value of the diameter of the target wire and determines a 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; Among them, the data analysis unit is provided with a monitoring cycle, and the diameter stability reference quantity includes the number of exceeded diameters detected by the data acquisition unit in a single monitoring cycle and the numerical value of each exceeded diameter, and the number of times the exceeded diameter is detected is recorded as the number of exceeded diameters; the first preset diameter stability reference quantity state is that the number of exceeded diameters of the target wire is greater than the preset number of exceeded diameters and each exceeded diameter is greater than or less than the preset preparation diameter; the second preset diameter stability reference quantity state is that the number of exceeded diameters of the target wire is less than or equal to the preset number of exceeded diameters and there is an exceeded diameter within a preset damage range; the third preset diameter stability reference quantity state is that the number of exceeded diameters of the target wire is less than the preset number of exceeded diameters and the exceeded diameters are all within an allowable damage range.

[0031] The data acquisition unit detects the forming diameter of the target wire N times within a single monitoring cycle, and records the formed diameter that is greater than or less than the preset preparation diameter and is within the allowable damage range as an over-standard diameter. The value of the preset over-standard diameter number can be determined by the user according to the actual working scenario. The larger the preset over-standard diameter number is, the lower the diameter accuracy of the target wire is, and the smaller the preset over-standard diameter number is, the higher the diameter accuracy of the target wire is. A value of the preset over-standard diameter number is provided, and the preset over-standard diameter number is N / 2. The preset preparation diameter is the wire diameter required by the user, that is, the wire diameter required to be prepared by the intelligent wire drawing machine. The user extracts the historical preparation records of the wires with the same preset preparation diameter from the historical preparation records, and records the wires that meet the user's requirements in the historical preparation records as the allowed wires. The maximum diameter of the allowed wires is recorded as the maximum allowable value of the allowable damage range, and the minimum diameter of the allowed wires is recorded as the minimum allowable value of the allowable damage range. The values ​​within the allowable damage range are all greater than or equal to the minimum allowable value and less than or equal to the maximum allowable value, and the values ​​within the preset damage range are not within the allowable damage range.

[0032] Specifically, 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 value of the segment diameter is positively correlated with the pre-adjusted retraction and extension speed difference; Among them, the first control adjustment condition is that the diameter stability reference value of the target wire is in the first preset diameter stability reference value state, the segment diameter average value is the average value of the exceeded diameter, 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.

[0033] Specifically, 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-adjusting retracting and unretracting speed difference, the first control and adjustment unit determines to adjust the speed of the winding roller, wherein the adjustment direction is: if the exceeding diameters are all greater than the preset preparation diameter, the speed of the winding roller is increased, and if the exceeding diameters are all less than the preset preparation diameter, the speed of the winding roller is decreased; 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 determined to be completed.

[0034] The first control and adjustment unit is provided with a preset adjustment difference, and the difference between the preset retracting and unwinding speed difference V and the absolute value V0 of the speed difference between the reeling roller and the unwinding roller before adjustment is recorded as △V, △V=|V-V0|, if △V is less than the preset adjustment difference, it is recorded as the preset retracting and unwinding speed difference is less than the preset allowable pre-adjusted retracting and unwinding speed difference, if △V is greater than or equal to the preset adjustment difference, it is recorded as the pre-adjusted retracting and unwinding speed difference is greater than or equal to the preset allowable pre-adjusted retracting and unwinding speed difference, and the value of the preset adjustment difference is determined by the user through a control variable experiment to detect the response speed of the retracting roller when only the speed of the retracting roller is adjusted and the △V value is different, and the response speed that meets the user's needs is extracted, and the △V corresponding to the maximum response speed is recorded as the preset adjustment difference.

[0035] Specifically, 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. The adjustment direction is: if the exceeding diameters are greater than the preset preparation diameter, the winding roller speed is increased; if the exceeding diameters are less than the preset preparation diameter, the winding roller speed is decreased. 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, the speed adjustment amount of the unwinding roller and the winding amount difference are positively correlated, and when the winding roller adjustment is completed, the speed difference between the unwinding roller and the winding roller is the preset unwinding speed difference, wherein the adjustment direction is, if the exceeding diameters are all greater than the preset preparation diameter, then the winding roller speed is increased and the unwinding roller speed is decreased, and if the exceeding diameters are all less than the preset preparation diameter, then the winding roller speed is decreased and the unwinding roller speed is increased; 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 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, 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.

[0036] Specifically, the second control and adjustment unit sequentially detects the surface reduction rate Gi 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.

[0037] The calculation formula for the reduction rate Gi of a single wire drawing die is: Gi=πri1²-πri2², Among them, ri1 is the radius of the target wire on the side of the inlet area of ​​the i-th wire drawing die, ri2 is the radius of the target wire on the side of the outlet area of ​​the i-th wire drawing die, the preset reduction rate is recorded as G0, G0 = πri1² - πri0², ri0 is the radius of the section of the pressure gap of the i-th wire drawing die perpendicular to the axis.

[0038] Specifically, 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.

[0039] The value of the preset vibration frequency is obtained by the user collecting statistics on the vibration frequencies of the wire drawing guide wheels in the historical preparation records, extracting the vibration frequencies of the wire drawing guide wheels corresponding to the prepared target wire material that meets the user's needs and calculating the average value, which is recorded as the preset vibration frequency.

[0040] Specifically, 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.

[0041] So far, the technical solutions of the present invention have 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.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in 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, which is connected to the intelligent wire drawing machine and the data acquisition unit, respectively, and is used to determine the working mode of the intelligent wire drawing machine according to the diameter of the target wire, and 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 respectively connected to the intelligent wire drawing machine, the data analysis unit and the data acquisition unit, 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, the data analysis unit and the data acquisition 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, and when the surface reduction rate of each wire drawing mold is within a preset threshold range, determine 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 value of the 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 determined to be 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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