An autolevelling drawing frame, control method and related equipment

Abstract

An embodiment of the present application discloses an autolevelling drawframe, a control method and related equipment. The autolevelling drawframe includes: a first roller assembly for controlling the discharging speed of a target material; a main motor connected to the first roller assembly through a first transmission assembly for providing power to the first roller assembly; a second roller assembly for adjusting the discharging thickness of the target material; and a levelling power assembly connected to the second roller assembly through a second transmission assembly for providing power to the second roller assembly.

Description

Technical Field

[0001] This specification relates to the technical field of textile machinery. More specifically, the present application relates to an autolevelling draw frame, a control method, and related equipment. Background Art

[0002] Textile machinery draw frames can be mainly divided into autolevelling draw frames and non-autolevelling draw frames in terms of function. Autolevelling draw frames can well improve the unevenness rate of sliver, and at the same time, the various parameters of the sliver are also significantly improved. Therefore, more and more users choose autolevelling draw frames.

[0003] At present, the drive forms of autolevelling draw frames are mainly divided into two types. One is that the main motor drives the differential box, and the required rotational speed is output by synthesizing the input speed of the levelling servo motor on the differential box and the input speed of the main motor; the other is without a differential box and without speed synthesis, and the required rotational speed is directly output by using a servo motor. The first is the traditional method with high reliability, and the levelling servo motor is only responsible for the operation of the levelling system; in the second scheme, the servo motor not only needs to be responsible for the levelling work but also needs to perform electronic drafting work following the main motor. The advantage is that electronic drafting is convenient for users to adjust the process, and the disadvantage is that the servo motor needs to perform both electronic drafting work and autolevelling work, and more precise control is required in terms of software and hardware. Summary of the Invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further described in detail in the Detailed Description section. The Summary of the Invention section of the present application does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0005] In order to provide a more intelligent, higher-precision and lower-cost autolevelling draw frame, in a first aspect, the present application proposes an autolevelling draw frame, including:

[0006] A first roller assembly for controlling the discharging speed of the target material;

[0007] A main motor connected to the first roller assembly through a first transmission assembly for providing power to the first roller assembly;

[0008] A second roller assembly for adjusting the discharging thickness of the target material;

[0009] A levelling power assembly connected to the second roller assembly through a second transmission assembly for providing power to the second roller assembly.

[0010] Optionally, the levelling power assembly includes an electronic drafting servo motor, a levelling servo motor, and a differential box assembly;

[0011] The above-mentioned electronic drafting servo motor and the above-mentioned evenness servo motor are respectively connected to the first input shaft and the second input shaft of the above-mentioned differential box assembly through transmission mechanisms, and the output shaft of the above-mentioned differential box assembly is connected to the input end of the above-mentioned first transmission assembly.

[0012] Optionally, the above-mentioned autolevelling drawing frame further includes a thickness detection module, the above-mentioned thickness detection module is used to detect the real-time feeding thickness of the target material, the above-mentioned real-time feeding thickness is used to generate a thickness adjustment instruction with the target discharging thickness, and the above-mentioned thickness adjustment instruction is used to adjust the rotation speed of the above-mentioned evenness servo motor so that the real-time discharging thickness approaches the above-mentioned target discharging thickness.

[0013] Optionally, the above-mentioned main motor is an adjustable-speed mechanical motor.

[0014] In a second aspect, the present application also proposes a control method for an autolevelling drawing frame, including:

[0015] Determine the target discharging speed and the target discharging thickness according to the material type of the above-mentioned target material;

[0016] Control the first rotation speed of the above-mentioned main motor according to the above-mentioned target discharging speed;

[0017] Control the second rotation speed of the above-mentioned evenness power assembly according to the above-mentioned target discharging thickness.

[0018] Optionally, the above-mentioned evenness power assembly includes an electronic drafting servo motor, an evenness servo motor and a differential box assembly, and the above-mentioned electronic drafting servo motor and the above-mentioned evenness servo motor synthesize the input rotation speed of the above-mentioned second roller assembly through the above-mentioned differential box to control the discharging thickness of the target material;

[0019] The above-mentioned controlling the second rotation speed of the above-mentioned evenness power assembly according to the above-mentioned target discharging thickness includes:

[0020] Determine the basic rotation speed of the above-mentioned electronic drafting servo motor, the target adjustment rotation speed of the above-mentioned evenness servo motor and the target differential ratio of the above-mentioned differential box assembly according to the above-mentioned target discharging thickness and the evenness calibration data;

[0021] Control the above-mentioned second rotation speed according to the above-mentioned basic rotation speed, the above-mentioned target adjustment rotation speed and the above-mentioned target differential ratio.

[0022] Optionally, the above-mentioned autolevelling drawing frame further includes a thickness detection module;

[0023] The above-mentioned method further includes:

[0024] Obtain the real-time feeding thickness of the above-mentioned target material through the above-mentioned thickness detection module;

[0025] Generate a thickness adjustment instruction according to the above-mentioned real-time feeding thickness and the target discharging thickness;

[0026] Control the current adjustment speed of the above leveling servo motor according to the above thickness adjustment instruction so that the real-time discharge thickness approaches the above target discharge thickness.

[0027] In a third aspect, the present application also proposes a control device for a self-leveling drawing frame, which is used for the self-leveling drawing frame in the first aspect, and includes:

[0028] A determination unit, configured to determine a target discharge speed and a target discharge thickness according to the material type of the above target material;

[0029] A first control unit, configured to control the first rotation speed of the above main motor according to the above target discharge speed;

[0030] A second control unit, configured to control the second rotation speed of the above leveling power assembly according to the above target discharge thickness.

[0031] In a fourth aspect, the present application also proposes an electronic device, including: a memory, a processor, and a computer program stored in the above memory and executable on the above processor. When the above processor executes the computer program stored in the memory, it implements the steps of the control method according to any one of the second aspects above.

[0032] In a fifth aspect, the present application also proposes a computer-readable storage medium, on which a computer program is stored. When the above computer program is executed by a processor, it implements the control method according to any one of the second aspects above.

[0033] In summary, the self-leveling drawing frame proposed in the embodiments of the present application includes: a first roller assembly, configured to control the discharge speed of the target material; a main motor, connected to the first roller assembly through a first transmission assembly, configured to provide power for the first roller assembly; a second roller assembly, configured to adjust the discharge thickness of the target material; a leveling power assembly, connected to the second roller assembly through a second transmission assembly, configured to provide power for the second roller assembly. In the self-leveling drawing frame proposed in the embodiments of the present application, by separating the power sources of the first roller assembly mainly controlling the discharge speed and the second roller assembly controlling the discharge thickness, that is, providing power for the first roller assembly through the main motor and providing power for the second roller assembly through the leveling power assembly. During continuous operation, there is no need to control the rotation speed of the main motor, and only the rotation speed of the leveling power assembly needs to be adjusted according to the thickness of the raw material fed into the drawing frame, so as to achieve self-leveling, thereby making the control of the self-leveling drawing frame more convenient, the production accuracy higher, and the machine cost lower.

[0034] The autolevelling drawing frame proposed in the embodiments of the present application. Other advantages, objectives and features of the present application will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present application. Brief Description of the Drawings

[0035] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of this specification. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0036] Figure 1 It is a schematic diagram of the principle of an autolevelling drawing frame provided by an embodiment of the present application;

[0037] Figure 2 It is a schematic diagram of the flow of a control method provided by an embodiment of the present application;

[0038] Figure 3 It is a schematic diagram of the electrical control principle of an autolevelling drawing frame provided by an embodiment of the present application;

[0039] Figure 4 It is a schematic diagram of the structure of a control device for an autolevelling drawing frame provided by an embodiment of the present application;

[0040] Figure 5 It is a schematic diagram of the structure of a remote communication electronic device provided by an embodiment of the present application;

[0041] Figure 1 The corresponding relationship between the names and reference numerals of the various components in is:

[0042] 100 - autolevelling drawing frame; 101 - first roller assembly; 102 - main motor; 103 - first transmission assembly; 104 - second roller assembly; 105 - levelling power assembly; 1051 - electronic drafting servo motor; 1052 - levelling servo motor; 1053 - differential box assembly; 106 - second transmission assembly. Detailed Embodiments

[0043] In the description and claims of this application and the above-mentioned drawings, terms such as "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices. Hereinafter, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments.

[0044] This application proposes an autolevelling drawframe 100. Please refer to Figure 1 , which is a schematic diagram of the principle of an autolevelling drawframe provided by an embodiment of this application. Specifically, it may include:

[0045] A first roller assembly 101 for controlling the discharging speed of the target material;

[0046] A main motor 102 is connected to the above-mentioned first roller assembly 101 through a first transmission assembly 103 and is used to provide power for the above-mentioned first roller assembly 101;

[0047] A second roller assembly 104 for adjusting the discharging thickness of the target material;

[0048] A levelling power assembly 105 is connected to the above-mentioned second roller assembly 104 through a second transmission assembly 106 and is used to provide power for the above-mentioned second roller assembly 104.

[0049] Exemplarily, autolevelling is to adjust the instantaneous draft multiple of the variable draft zone according to the changes in the thickness and weight of the fiber bundle (target material) to change the evenness of the fiber bundle. Currently, the drive forms of autolevelling drawframes are mainly divided into two types. One is that the main motor drives the differential gearbox, and the required rotational speed is synthesized by the input speed of the levelling servo motor on the differential gearbox and the input speed of the main motor; the other is without a differential gearbox and without speed synthesis, and the required rotational speed is directly output by the servo motor. However, the above methods cannot overcome the disadvantages that precise control is required both in software and hardware.

[0050] The autolevelling drawframe provided by the embodiment of the present application includes two power systems, namely a main motor 102 and a levelling power assembly 105. The main motor 102 is connected to a first roller assembly 101 through a first transmission assembly 103 to provide power for the first roller assembly 101. The levelling power assembly 105 is connected to a second roller assembly 104 through a second transmission assembly 106 to provide power for the second roller assembly 104. The instantaneous draft multiple during the processing is controlled by the speed difference between the first roller assembly 101 and the second roller assembly 104, so that the target material can be as close as possible to the target discharge thickness after processing, realizing automatic adjustment.

[0051] It should be noted that the first roller assembly 101 is composed of an upper roller and a lower roller, and the second roller assembly 104 is composed of a plurality of roller pairs with the same number of upper rollers and lower rollers. During the working process, through the connection of the second transmission assembly 106, the linear speed of the roller pair closer to the first roller assembly 101 is greater. When processing the same batch of target materials, after the basic draft multiple is determined and the rotational speed of the main motor 102 is selected and determined, it will no longer change. The rotational speed of the levelling power assembly 105 is adjusted by real-time monitoring of the actual thickness fed into the drawframe to achieve the purpose of autolevelling.

[0052] In summary, for the autolevelling drawframe proposed in the embodiment of the present application, the power sources of the first roller assembly 101 that mainly controls the discharge speed and the second roller assembly 104 that controls the discharge thickness are separated. That is, the main motor 102 provides power for the first roller assembly 101, and the levelling power assembly 105 provides power for the second roller assembly 104. During the continuous working process, it is not necessary to control the rotational speed of the main motor 102. Only the rotational speed of the levelling power assembly 105 needs to be adjusted according to the thickness of the raw materials fed into the drawframe, thereby realizing autolevelling, making the control of the autolevelling drawframe more convenient, the production accuracy higher, and the machine cost lower.

[0053] In some examples, the above-mentioned levelling power assembly 105 includes an electronic drafting servo motor 1051, a levelling servo motor 1052, and a differential box assembly 1053;

[0054] The above-mentioned electronic drafting servo motor 1051 and the above-mentioned levelling servo motor 1052 are respectively connected to the first input shaft and the second input shaft of the above-mentioned differential box assembly 1053 through transmission mechanisms, and the output shaft of the above-mentioned differential box assembly 1053 is connected to the input end of the above-mentioned first transmission assembly 103.

[0055] Exemplarily, the electronic drafting servo motor 1051 drives the differential box assembly 1053. The differential box assembly 1053 synthesizes the speeds input by the evenness servo motor 1052 and the electronic drafting servo motor 1051 to output the required rotational speed. The electronic drafting servo motor 1051 is only responsible for electronic drafting, and the evenness servo motor 1052 is only responsible for the self-leveling work. This not only retains the electronic drafting, facilitating the user to adjust the process, but also avoids the manufacturing and control difficulties of the dual work of the servo motor. At the same time, compared with the existing mechanical drafting, the electronic drafting has higher accuracy in adjusting the drafting multiple.

[0056] In summary, the self-leveling drawframe provided by the embodiment of the present application realizes precise electronic drafting through the combination of the electronic drafting servo motor 1051, the evenness servo motor 1052, and the differential box assembly 1053. The sub-drafting servo motor is only responsible for electronic drafting, and the evenness servo motor 1052 is only responsible for the self-leveling work, which facilitates the user to adjust the process and avoids the manufacturing and control difficulties of the dual work of the servo motor.

[0057] In some examples, the above self-leveling drawframe further includes a thickness detection module. The thickness detection module is used to detect the real-time feeding thickness of the target material. The real-time feeding thickness is used to generate a thickness adjustment instruction with the target discharging thickness. The thickness adjustment instruction is used to adjust the rotational speed of the evenness servo motor 1052 so that the real-time discharging thickness approaches the target discharging thickness.

[0058] Exemplarily, before the target material enters the second roller assembly 104 for drafting, the thickness detection module measures the real-time feeding thickness of the target material. A thickness adjustment instruction is generated based on the real-time feeding thickness and the target discharging thickness. The rotational speed of the evenness servo motor 1052 is adjusted according to the thickness adjustment instruction to change the combined speed between the evenness servo motor 1052 and the electronic drafting motor, thereby adjusting the thickness of the product processed by the drawframe. It can be understood that when the displacement sensor detects that the thickness of the fed target material becomes thinner, the rotational speed of the evenness servo motor 1052 needs to be increased, so that the combined speed output by the differential box assembly 1053 for the two motors becomes faster; when the displacement sensor detects that the thickness of the fed target material becomes thicker, the rotational speed of the evenness servo motor 1052 needs to be decreased so that the combined speed output by the differential box assembly 1053 for the two motors becomes slower. It should be noted that the thickness detection device can measure the thickness by mechanical, pneumatic, optoelectronic and other methods.

[0059] In some examples, the above main motor 102 is an adjustable-speed mechanical motor.

[0060] Exemplarily, the main motor 102 is set as an adjustable-speed mechanical motor. Since during the continuous operation of the drawing frame, there is no need to adjust the speed of the main motor 102 in real time, and the speed of the main motor 102 only needs to be adjusted when there is a broken strip or the target material to be fed is changed. Moreover, the mechanical motor has the advantages of high stability, simple control, and low cost.

[0061] Please refer to Figure 2 , this application also proposes a control method for a self-leveling drawing frame, including:

[0062] S210. Determine the target discharge speed and target discharge thickness according to the material type of the above-mentioned target material;

[0063] Exemplarily, the material type of the target material can be cotton, chemical fiber, etc. Each type of target material needs to be leveled and calibrated before leveling to determine the most suitable target discharge speed and target discharge thickness corresponding to different target materials. After the leveling calibration, in actual production, the target discharge speed and target discharge thickness corresponding to the target material can be queried according to the leveling calibration data.

[0064] S220. Control the first speed of the above-mentioned main motor according to the above-mentioned target discharge speed;

[0065] Exemplarily, during the leveling calibration, the magnitude of the first speed of the main motor is also determined when the target discharge speed is to be achieved.

[0066] S230. Control the second speed of the above-mentioned leveling power assembly according to the above-mentioned target discharge thickness.

[0067] Exemplarily, the speed of the leveling power assembly directly affects the discharge thickness. Control the second speed of the leveling power assembly according to the target discharge thickness so that the discharge thickness is close to the target discharge thickness, thereby ensuring the consistency of the discharge and achieving the leveling effect.

[0068] In summary, the leveling control method for the drawing frame proposed in the embodiments of this application determines the target discharge speed and target discharge thickness corresponding to different types of target materials through the historical data of leveling calibration, and controls the speeds of the main motor and the leveling power assembly respectively according to the target discharge speed and target discharge thickness, thereby realizing the processing of raw materials and ensuring the consistency of the processed products.

[0069] In some examples, the above-mentioned leveling power assembly includes an electronic drafting servo motor, a leveling servo motor, and a differential box assembly. The above-mentioned electronic drafting servo motor and the above-mentioned leveling servo motor synthesize the input speed of the second roller assembly through the above-mentioned differential box to control the discharge thickness of the target material;

[0070] Controlling the second rotational speed of the above-mentioned evenness power assembly according to the above-mentioned target discharge thickness includes:

[0071] Determining the base rotational speed of the above-mentioned electronic drafting servo motor, the target adjustment rotational speed of the above-mentioned evenness servo motor, and the target differential ratio of the above-mentioned differential gearbox assembly according to the above-mentioned target discharge thickness and evenness calibration data;

[0072] Controlling the above-mentioned second rotational speed according to the above-mentioned base rotational speed, the above-mentioned target adjustment rotational speed, and the above-mentioned target differential ratio.

[0073] Exemplarily, appropriate base rotational speed, target adjustment rotational speed, and target differential ratio are selected according to the target discharge thickness and evenness calibration data, so as to ensure that the synthesized second rotational speed can meet the requirements of the target material and the target discharge thickness, achieving the effect of evenness drawing.

[0074] In some examples, the above-mentioned autolevelling drawing frame further includes a thickness detection module;

[0075] The above-mentioned method further includes:

[0076] Obtaining the real-time incoming thickness of the above-mentioned target material through the above-mentioned thickness detection module;

[0077] Generating a thickness adjustment instruction according to the above-mentioned real-time incoming thickness and the target discharge thickness;

[0078] Controlling the current adjustment rotational speed of the above-mentioned evenness servo motor according to the above-mentioned thickness adjustment instruction so that the real-time discharge thickness approaches the above-mentioned target discharge thickness.

[0079] Exemplarily, the real-time incoming thickness of the target material is obtained through the thickness detection module, the thickness deviation is calculated according to the real-time incoming thickness and the target discharge thickness, and a thickness adjustment instruction is generated, ensuring that the electronic drafting servo motor still rotates at the base rotational speed while changing the current adjustment rotational speed of the evenness servo motor, so that the synthesized speed changes, and the real-time discharge thickness approaches the target discharge thickness, that is, ensuring that the discharge thickness is as consistent as possible.

[0080] In summary, the autolevelling drawing frame control method proposed in the embodiments of the present application changes the current adjustment rotational speed of the evenness servo motor by monitoring the thickness change of the fed target material, and keeps the rotational speed of the electronic drafting servo motor unchanged, thereby changing the synthesized rotational speed and adjusting the thickness of the product.

[0081] In some examples, such as Figure 3The figure shows a schematic diagram of the electrical control principle of the autolevelling drawframe applied to this application. The PLC serves as the main controller to control most of the actions of the autolevelling drawframe. The PLC controls the frequency converter and the servo driver through the output points and the RS485 communication port to drive the main motor and the levelling power component respectively, and then controls the main drive mechanism of the drawframe. Through the program calculation of the PLC, the servo driver is controlled to drive the levelling power component to follow the main motor in real time, and then the draft ratio required by the drafting component is obtained. The levelling controller is responsible for calculating the relevant data of the autolevelling control and sending instructions to the levelling servo system to achieve the autolevelling action. The levelling servo system is the mechanism that executes the levelling action. The levelling servo motor and the electronic drafting servo motor are connected through a differential gearbox structure. The differential gearbox structure outputs the combined speed of the two motors to provide power for the second roller assembly.

[0082] The PLC controls the contactor through the output point, and then controls the fan and the bobbin changing mechanism to achieve the purpose of controlling the cotton sucking box and the bobbin changing execution. The PLC controls the contactor through the output point, and then controls the cleaning mechanism to achieve the purpose of controlling the cleaning execution of the drawframe. The PLC receives the input signals of the start, jog, and stop buttons through the input points to achieve the purpose of controlling the start, jog, and stop of the drawframe. The PLC receives the input signals of the speed sensor through the input points to achieve the purpose of calculating and counting the vehicle speed and output of the drawframe.

[0083] The PLC receives the input signals of the proximity switch through the input points to achieve the purpose of automatically alarming and stopping when the drawframe has a fault. The PLC controls the alarm indicator light through the output point to warn the user of the drawframe of the current fault status of the drawframe. The PLC is communicatively connected to the touch screen through the RS232 communication port for real-time data exchange.

[0084] Please refer to Figure 4 , an embodiment of the autolevelling drawframe control device in the embodiment of this application may include:

[0085] A determination unit 41, configured to determine a target discharge speed and a target discharge thickness according to the material type of the above-mentioned target material;

[0086] A first control unit 42, configured to control a first rotation speed of the above-mentioned main motor according to the above-mentioned target discharge speed;

[0087] A second control unit 43, configured to control a second rotation speed of the above-mentioned levelling power component according to the above-mentioned target discharge thickness.

[0088] As Figure 5As shown in the figure, an embodiment of the present application further provides an electronic device 500, including a memory 510, a processor 520, and a computer program 511 stored on the memory 510 and executable on the processor. When the processor 520 executes the computer program 511, the steps of any of the above-mentioned remote communication methods are implemented.

[0089] Since the electronic device introduced in this embodiment is the device adopted in an automatic evenness drawing frame control device in an embodiment of the present application, based on the method introduced in the embodiment of the present application, those skilled in the art can understand the specific implementation manners and various variations of the electronic device in this embodiment. Therefore, the specific implementation of how this electronic device implements the method in the embodiment of the present application will not be described in detail here. As long as the device adopted by those skilled in the art to implement the method in the embodiment of the present application belongs to the scope protected by the present application.

[0090] In the specific implementation process, when the computer program 511 is executed by the processor, it can implement Figure 2 any implementation manner in the corresponding embodiment.

[0091] It should be noted that in the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0092] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0093] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and the combination of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded computers, or other programmable data processing devices to generate a machine, so that the instructions executed by the processors of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0094] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction device that implements the functions specified in one or more of the processes Figure 1 one or more processes and / or blocks Figure 1 specified in one or more of the blocks.

[0095] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operational steps are performed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more of the processes Figure 1 one or more processes and / or blocks Figure 1 specified in one or more of the blocks.

[0096] The embodiments of the present application also provide a computer program product, which includes computer software instructions. When the computer software instructions run on a processing device, the processing device is caused to execute the processes of the control method in the corresponding Figure 5 embodiment.

[0097] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are wholly or partially generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from a website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)), etc.

[0098] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0099] In several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units is only a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections between each other can be through some interfaces, and the indirect couplings or communication connections of devices or units can be in electrical, mechanical, or other forms.

[0100] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or they can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0101] In addition, each functional unit in various embodiments of the present application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0102] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in various embodiments of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs that can store program codes.

[0103] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of various embodiments of the present application.

Claims

1. A self-leveling drawing frame, characterized in that, it includes: A first roller assembly for controlling the discharging speed of the target material; A main motor connected to the first roller assembly through a first transmission assembly for providing power to the first roller assembly. When processing the same batch of target materials, after the basic draft ratio is determined and the rotational speed of the main motor is selected, it will no longer change; A second roller assembly for adjusting the discharging thickness of the target material; A leveling power assembly connected to the second roller assembly through a second transmission assembly for providing power to the second roller assembly; The leveling power assembly includes an electronic draft servo motor, a leveling servo motor and a differential box assembly; The electronic draft servo motor and the leveling servo motor are respectively connected to the first input shaft and the second input shaft of the differential box assembly through a transmission mechanism. The output shaft of the differential box assembly is connected to the input end of the first transmission assembly. The electronic draft servo motor drives the differential box assembly, and the required rotational speed is synthesized and output through the differential box assembly by the speeds input by the leveling servo motor and the electronic draft servo motor. The electronic draft servo motor is only responsible for electronic drafting, and the leveling servo motor is only responsible for self-leveling work.

2. The self-leveling drawing frame according to claim 1, characterized in that, it further includes: A thickness detection module for detecting the real-time feeding thickness of the target material. The real-time feeding thickness is used to generate a thickness adjustment instruction with the target discharging thickness, and the thickness adjustment instruction is used to adjust the rotational speed of the leveling servo motor so that the real-time discharging thickness approaches the target discharging thickness.

3. The self-leveling drawing frame according to claim 1, characterized in that, The main motor is an adjustable-speed mechanical motor.

4. A control method for a self-leveling drawing frame, used for the self-leveling drawing frame according to any one of claims 1-3, characterized in that, it includes: Determining the target discharging speed and the target discharging thickness according to the material type of the target material; Controlling the first rotational speed of the main motor according to the target discharging speed; Controlling the second rotational speed of the leveling power assembly according to the target discharging thickness.

5. The method according to claim 4, characterized in that, The leveling power assembly includes an electronic draft servo motor, a leveling servo motor and a differential box assembly. The electronic draft servo motor and the leveling servo motor synthesize the input rotational speed of the second roller assembly through the differential box to control the discharging thickness of the target material; The controlling the second rotational speed of the leveling power assembly according to the target discharging thickness includes: Determining the basic rotational speed of the electronic draft servo motor, the target adjustment rotational speed of the leveling servo motor and the target differential ratio of the differential box assembly according to the target discharging thickness and the leveling calibration data; Controlling the second rotational speed according to the basic rotational speed, the target adjustment rotational speed and the target differential ratio.

6. The method according to claim 5, characterized in that, The self-leveling drawing frame further includes a thickness detection module; The method further includes: Obtaining the real-time feeding thickness of the target material through the thickness detection module; Generate a thickness adjustment instruction according to the real-time feeding thickness and the target discharging thickness; Control the current adjustment speed of the evenness servo motor according to the thickness adjustment instruction so that the real-time discharging thickness approaches the target discharging thickness.

7. A control device for an automatic evenness drawing frame, which is used for the automatic evenness drawing frame according to any one of claims 1-3, comprising: a determination unit, configured to determine a target discharging speed and a target discharging thickness according to the material type of the target material; a first control unit, configured to control a first speed of the main motor according to the target discharging speed; a second control unit, configured to control a second speed of the evenness power assembly according to the target discharging thickness.

8. An electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor is configured to implement the steps of the control method according to any one of claims 4-6 when executing the computer program stored in the memory.

9. A computer-readable storage medium, on which a computer program is stored, characterized in that: the steps of the control method according to any one of claims 4-6 are implemented when the computer program is executed by a processor.

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