Method and device for adjusting position of knife rest in slitting device, medium and product

Abstract

The invention relates to a tool rest position adjusting method and device in a slitting device, a medium and a product. The method comprises the steps that under the condition that the feedback torque fluctuation quantity of a current feedback torque set is larger than a first torque threshold value when the slitting device splits materials, the adjusting priority sequence of tool rests in the slitting device in multiple directions is determined according to the current feedback torque set and a preset initial feedback torque set; wherein the initial feedback torque set is a feedback torque set with the feedback torque fluctuation quantity smaller than or equal to a second torque threshold value when the slitting device splits materials, and the first torque threshold value is larger than or equal to the second torque threshold value; and the positions of the tool rests are adjusted according to the adjusting priority sequence of the tool rests in the multiple directions. By means of the method, the rationality of position adjustment of the tool rest in the slitting device can be improved, and then the slitting quality of the slitting device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy, in particular to a knife holder position adjustment method and device in a slitting device, a medium and a product. BACKGROUND

[0002] In the technical field of new energy, batteries play a crucial role as the core carrier of energy storage and conversion. In the production process of batteries, electrode sheets are needed, and the production process of electrode sheets in batteries includes the step of slitting large electrode sheets. Therefore, material slitting is a crucial processing procedure, and a slitting device is a core equipment for realizing this procedure. Taking large electrode sheets as an example, the slitting quality of the slitting device when slitting large electrode sheets is crucial to the quality of electrode sheets in batteries.

[0003] In related technologies, the position of the knife holder in the slitting device is a key indicator that affects the slitting quality of materials such as large electrode sheets. Therefore, adjusting the position of the knife holder in the slitting device is very important. However, operators often adjust the position of the knife holder in the slitting device based on past adjustment experience.

[0004] However, in related technologies, the scheme of adjusting the position of the knife holder in the slitting device based on experience often does not know when to adjust the position of the knife holder, resulting in insufficient rationality of the position of the knife holder, which in turn causes problems such as burrs and uneven edges when slitting materials such as large electrode sheets, seriously affecting the slitting quality. In addition, there are problems such as slow knife holder adjustment efficiency and high requirement for manual skill level in related technologies. SUMMARY

[0005] Therefore, the present application provides a knife holder position adjustment method and device in a slitting device, a medium and a product, which can improve the rationality of the adjustment of the position of the knife holder in the slitting device, and in turn improve the slitting quality of the slitting device.

[0006] In a first aspect, the present application provides a knife holder position adjustment method in a slitting device, the method comprising: in a case where a feedback torque fluctuation amount of a current feedback torque set of the slitting device when slitting a material is greater than a first torque threshold, determining an adjustment priority order of the knife holder in the slitting device in multiple directions according to the current feedback torque set and a preset initial feedback torque set; wherein the initial feedback torque set is a feedback torque set of the slitting device when slitting a material, and the feedback torque fluctuation amount is less than or equal to a second torque threshold, and the first torque threshold is greater than or equal to the second torque threshold; and adjusting the position of the knife holder according to the adjustment priority order of the knife holder in the multiple directions.

[0007] In the technical scheme provided by the embodiment, when the feedback torque fluctuation of the current feedback torque set of the slitting device in the process of slitting the material is greater than the first torque threshold, it is indicated that the deviation of the knife holder in the slitting device will cause low slitting quality of the slitting device in the process of slitting the material, so that the position of the knife holder in the slitting device is adjusted again, which reduces the phenomenon of adjusting the knife holder when the knife holder does not deviate in the slitting device, improves the rationality of the adjustment of the position of the knife holder in the slitting device, and further improves the slitting quality of the slitting device. Moreover, the position of the knife holder is adjusted according to the priority order of adjustment of the knife holder in multiple directions, so that the position of the knife holder in the slitting device is adjusted preferentially from the direction that most affects the feedback torque fluctuation, thereby greatly reducing the feedback torque fluctuation of the current feedback torque set of the slitting device in the process of slitting the material through a small number of times of adjustment of the position of the knife holder, which is conducive to quickly reaching the required torque threshold of the feedback torque fluctuation of the slitting device in the process of slitting the material, improves the adjustment efficiency of the position of the knife holder, and the controller controls the adjustment of the position of the knife holder in the embodiment, without the need for an operator to finely adjust the position of the knife holder in the slitting device, thereby reducing the dependence on the operator with high skill level, and further improving the adjustment efficiency of the position of the knife holder.

[0008] In some embodiments, the priority order of adjustment of the knife holder in multiple directions is determined according to the current feedback torque set and the preset initial feedback torque set, including: determining a knife holder position adjustment amount according to the current feedback torque set and the preset initial feedback torque set; and determining the priority order of adjustment of the knife holder in multiple directions according to the knife holder position adjustment amount.

[0009] In the technical scheme provided by the embodiment, the knife holder position adjustment amount is determined according to the current feedback torque set and the preset initial feedback torque set, so that the knife holder position adjustment amount can accurately match the real-time change of the load in the process of slitting, thereby improving the accuracy of the determined knife holder position adjustment amount; and the priority order of adjustment of the knife holder in multiple directions is determined according to the knife holder position adjustment amount, so that the adjustment direction that is most critical to compensating for the current knife holder attitude deviation can be automatically and accurately identified, the blindness in determining the priority order of adjustment is avoided, and the reliability of the determined priority order of adjustment is improved.

[0010] In some embodiments, the knife holder position adjustment amount is determined according to the current feedback torque set and the preset initial feedback torque set, including: determining a current feedback torque difference degree according to the current feedback torque set and the preset initial feedback torque set; obtaining a target mapping relationship between a knife holder position deviation and the feedback torque difference degree; and determining the knife holder position adjustment amount according to the current feedback torque difference degree and the target mapping relationship.

[0011] In the technical scheme provided by the embodiment of the application, the difference degree between the current feedback torque set and the preset initial torque set is calculated first, then the target mapping relationship that accurately describes the quantitative relationship between the position offset of the tool rest and the difference degree of the feedback torque is called, and finally the tool rest position adjustment amount is determined, so that the target mapping relationship is used to realize accurate conversion from torque to position. Since the target mapping relationship is a fixed mapping relationship, it has strong anti-interference and repeated consistency, thereby improving the accuracy of the determined tool rest position adjustment amount.

[0012] In some embodiments, the target mapping relationship between the tool rest position offset and the feedback torque difference degree is obtained, including: determining a test feedback torque set of the tool rest when cutting the material under different position offset combinations according to a preset movement step of the tool rest; the position offset combination is the offset of the tool rest in multiple directions relative to the initial position, and the initial position is the position of the cutting device under the initial feedback torque set; and determining the target mapping relationship according to each position offset combination and each corresponding test feedback torque set.

[0013] In the technical scheme provided by the embodiment of the application, the offset combination of different positions in multiple directions is obtained according to the preset movement step, the test feedback torque set when actually cutting the material under each position offset combination is determined, and the target mapping relationship is determined accordingly, so that the determination of the target mapping relationship is derived from the actual measurement of the actual cutting condition, and different position offset combinations cover the expected variation range and direction. The target mapping relationship is not obtained by inference or estimation, but is determined based on dense and reliable measured data points, thereby improving the accuracy of the determined target mapping relationship.

[0014] In some embodiments, the test feedback torque set of the tool rest when cutting the material under different position offset combinations is determined according to a preset movement step of the tool rest, including: in each direction, a specified feedback torque set of the cutting device when cutting the material is obtained under the condition that the tool rest is moved by the preset movement step each time; in the case that the feedback torque fluctuation amount of the specified feedback torque set is greater than a third torque threshold, the offset range of the tool rest in each direction is determined according to the number of movements of the tool rest in each direction; the third torque threshold is greater than or equal to the first torque threshold; and the test feedback torque set of the tool rest when cutting the material under different position offset combinations is determined according to the offset range of the tool rest in each direction.

[0015] The technical scheme provided in the embodiments of the present application can determine the feedback torque fluctuation of the feedback torque set when the slitting device is slitting the material after the tool rest is moved by a preset moving step each time, and compare the feedback torque fluctuation with a third torque threshold value, so that the effective offset range of the tool rest in each direction can be determined objectively, and the condition of acquiring the test feedback torque set in the invalid offset range is avoided, and the effectiveness and efficiency of the test feedback torque set of the tool rest when slitting the material in different position offset combinations are improved.

[0016] In some embodiments, the test feedback torque set of the tool rest when slitting the material in different position offset combinations is determined according to the offset range of the tool rest in each direction, including: determining the position offset combination according to the offset range of the tool rest in each direction; and determining the specified feedback torque set of the tool rest when slitting the material in each position offset combination as each test feedback torque set.

[0017] In the technical scheme provided in the embodiments of the present application, the position offset combination is determined according to the offset range of the tool rest in each direction, so that the different offset combinations of the tool rest can be determined objectively, and the feedback torque set in the different offset combination is determined, and the feedback torque set in other offset combinations is no longer determined, and the effectiveness and efficiency of the test feedback torque set are improved.

[0018] In some embodiments, the target mapping relationship is determined according to the position offset combination and the corresponding test feedback torque set, including: determining the test feedback torque difference degree according to the initial feedback torque set and the test feedback torque set; determining the change rate of the test feedback torque difference degree in each direction according to the position offset combination and the corresponding test feedback torque difference degree; and determining the target mapping relationship according to the test feedback torque difference degree and the change rate of the test feedback torque difference degree in each direction.

[0019] In the technical scheme provided in the embodiments of the present application, the target mapping relationship is determined not only according to the test feedback torque difference degree, but also according to the change gradient of the test feedback torque difference degree in each direction, the test feedback torque difference degree reflects the corresponding relationship between the feedback torque difference degree and the position offset combination, and the change gradient of the test feedback torque difference degree in each direction can quantify the sensitivity and change trend of the feedback torque difference degree to the position offset, so that the target mapping relationship constructed has stronger nonlinear fitting capability and spatial prediction accuracy, and the effectiveness of the determined target mapping relationship is improved.

[0020] In some embodiments, the adjusting the position of the tool holder according to the priority order of the tool holder in the plurality of directions comprises: adjusting the position of the tool holder according to the adjustment amount of the tool holder position and the priority order of the tool holder in the plurality of directions.

[0021] In the technical scheme provided by the embodiments of the present application, the action of adjusting the position of the tool holder is not performed independently or in disorder in each direction, but is strictly performed according to the priority order of the tool holder in the plurality of directions, so that the tool holder is preferentially driven to move the corresponding adjustment amount in the direction that contributes most to the feedback torque difference, which is not only beneficial to reducing the number of adjustments of the tool holder position, but also reduces the mechanical wear and improves the effectiveness of adjusting the tool holder position.

[0022] In some embodiments, the adjusting the position of the tool holder according to the adjustment amount of the tool holder position and the priority order of the tool holder in the plurality of directions comprises: in a case where the adjusting the position of the tool holder according to the adjustment amount of the tool holder position is completed, obtaining a set of target feedback torques of the slitting device when slitting the material; in a case where a feedback torque fluctuation amount of the set of target feedback torques is less than or equal to a fourth torque threshold, determining that the adjusting the position of the tool holder is completed; the fourth torque threshold is less than the first torque threshold and greater than or equal to the second torque threshold; in a case where the feedback torque fluctuation amount of the set of target feedback torques is greater than the fourth torque threshold, continuing to adjust the position of the tool holder according to the priority order of the tool holder in the plurality of directions and a preset movement step length of the tool holder.

[0023] In the technical scheme provided by the embodiments of the present application, it is considered that as the use time of the slitting device increases, the position of the blade on the tool shaft may change, the blade may be worn, and the position of the tool holder may also change when the feedback torque fluctuation amount of the slitting device is less than or equal to the second torque threshold. Instead of outputting an instruction information to replace the blade in the slitting device, the position of the tool holder is continued to be adjusted according to the priority order of the tool holder in the plurality of directions and the preset movement step length of the tool holder in a case where the feedback torque fluctuation amount of the set of target feedback torques is greater than the fourth torque threshold, thereby reducing the replacement frequency of the blade in the slitting device and reducing the consumption amount of the blade in the slitting device.

[0024] In some embodiments, the continuing to adjust the position of the tool holder according to the priority order of the tool holder in the plurality of directions and the preset movement step length of the tool holder comprises: in a case where the adjusting the position of the tool holder according to the preset movement step length is completed each time, obtaining a set of set feedback torques of the slitting device when slitting the material according to the priority order; in a case where a feedback torque fluctuation amount of the set of set feedback torques is less than or equal to a fourth torque threshold, determining that the adjusting the position of the tool holder is completed.

[0025] The technical scheme provided in the embodiments of the present application adjusts the position of the tool holder step by step by adjusting the priority order and the preset moving step length, evaluates the set feedback torque set after completing the adjustment of one step length each time, so that the number of adjustments of the position of the tool holder can be reduced as much as possible, and the number and time of adjustment actions are reduced, and the efficiency of the adjustment of the position of the tool holder is improved.

[0026] In some embodiments, the method further includes: in a case where the feedback torque fluctuation of the set feedback torque set is greater than the fourth torque threshold, outputting indication information for replacing the blade in the slitting device.

[0027] In the technical scheme provided in the embodiments of the present application, when the fluctuation of the set feedback torque set is still continuously higher than the strict fourth torque threshold after fine adjustment according to the priority order and the preset moving step length, it is indicated that the slitting load cannot be restored to be stable even by optimizing the position of the tool holder, that is, the blade itself has been worn to a state where the performance deterioration cannot be compensated by position compensation, and therefore the indication information for replacing the blade is automatically output, which is beneficial to timely replacing the blade in the slitting device, reduces the condition of slitting quality decline caused by excessive wear of the blade, and improves the slitting quality of the slitting device.

[0028] In a second aspect, the present application provides a tool holder position adjustment device in a slitting device, which includes: a determination module configured to determine an adjustment priority order of a tool holder in a plurality of directions in the slitting device according to a current feedback torque set and a preset initial feedback torque set in a case where the feedback torque fluctuation of the current feedback torque set is greater than a first torque threshold when the slitting device is slitting materials, wherein the initial feedback torque set is a feedback torque set in which the feedback torque fluctuation of the slitting device is less than or equal to a second torque threshold when the slitting device is slitting materials, and the first torque threshold is greater than or equal to the second torque threshold; and an adjustment module configured to adjust the position of the tool holder according to the adjustment priority order of the tool holder in the plurality of directions.

[0029] In a third aspect, the present application provides a slitting device, which includes a controller, a main body, a tool holder and a tool shaft, the tool holder and the tool shaft are both connected to the main body; the controller is connected to the tool holder; the tool holder is provided with a first blade, the tool shaft is provided with a second blade, and the first blade and the second blade cooperate with each other to slit materials; and the controller is configured to implement the steps of the method of any one of the first aspect when executing a computer program.

[0030] In a fourth aspect, the present application provides a computer readable storage medium, which stores a computer program, and the computer program is configured to implement the steps of the method of any one of the first aspect when executed by a processor.

[0031] In a fifth aspect, the present application provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of the method of any one of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed to be used in the description of the embodiments of the present application or the related art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0033] Figure 1 A flowchart of the method for adjusting the position of the knife holder in the slitting device provided by some embodiments is shown in the figure.

[0034] Figure 2 A flowchart of the method for determining the adjustment amount of the position of the knife holder according to the current feedback torque set and the preset initial feedback torque set provided by some embodiments is shown in the figure.

[0035] Figure 3 A flowchart of the method for adjusting the position of the knife holder according to the adjustment amount of the position of the knife holder and the adjustment priority order of the knife holder in multiple directions provided by some embodiments is shown in the figure.

[0036] Figure 4 A structural diagram of the knife holder position adjustment device in the slitting device provided by some embodiments is shown in the figure.

[0037] Figure 5 A structural diagram of the slitting device provided by some embodiments is shown in the figure.

[0038] Figure 6 A structural diagram of the computer device provided by some embodiments is shown in the figure. DETAILED DESCRIPTION

[0039] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0041] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, the meaning of "multiple groups" is two or more, and "each" represents each of multiple, unless otherwise explicitly and specifically limited.

[0042] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0043] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0044] Unless otherwise specified, the order of execution of the steps in the embodiments of the present application is not limited. It should be noted that any step in the embodiments of the present application can be independently executed, that is, when any step in the above embodiments is executed, it can not depend on the execution of other steps.

[0045] The position of the knife holder in the slitting device can be offset due to various reasons. For example, during the use of the slitting device, the position of the knife holder in the slitting device is offset due to factors such as wear or looseness of transmission components, deformation of parts, load impact, etc. For example, in the scenario of replacing the knife on the knife holder, the position of the knife holder after replacing the knife will also be offset relative to the position of the knife holder before replacing the knife. However, if the position of the knife holder in the slitting device is greatly offset, it will cause problems such as burrs, uneven edges, etc. when the slitting device is used to slit materials such as large pieces of pole pieces, which seriously affects the slitting quality.

[0046] In some embodiments, the position offset of the knife holder refers to the position offset of the knife holder relative to the position of the blade on the knife seat, the blade on the knife shaft, or the blade on another knife holder used in cooperation with the knife holder. In other embodiments, the position offset of the knife holder refers to the position offset of the knife holder relative to the initial position of the knife holder, wherein the initial position of the knife holder can also be considered as the position of the knife holder when it is not in use.

[0047] However, the scheme of adjusting the position of the knife holder in the slitting device according to experience in the related art often does not know when to adjust the position of the knife holder, resulting in insufficient rationality of the position of the knife holder, and further causing problems such as burrs and uneven edges when slitting materials such as large pieces of polar pieces, which seriously affects the slitting quality. In addition, the related art also has the problems of slow knife holder adjustment efficiency and high requirement for the skill level of the operator.

[0048] To alleviate the above problems, it is found through research that if the feedback torque fluctuation of the current feedback torque set of the slitting device when slitting materials is large, it indicates that the deviation of the knife holder in the slitting device will cause low slitting quality when the slitting device is slitting materials, so that the position of the knife holder in the slitting device is adjusted again, reducing the phenomenon of adjusting the knife holder when the knife holder in the slitting device does not deviate, which can improve the rationality of the adjustment of the position of the knife holder in the slitting device, and further improve the slitting quality of the slitting device. In addition, according to the adjustment priority order of the knife holder in multiple directions, the position of the knife holder is adjusted, so that the position of the knife holder in the slitting device can be adjusted from the direction that affects the feedback torque fluctuation the most, thereby greatly reducing the feedback torque fluctuation of the current feedback torque set of the slitting device when slitting materials through fewer times of adjustment of the position of the knife holder, which is beneficial to the feedback torque fluctuation of the slitting device when slitting materials quickly reaching the required torque threshold, improving the adjustment efficiency of the position of the knife holder, and the controller in the embodiments of the present application controls the adjustment of the position of the knife holder, without the need for the operator to finely adjust the position of the knife holder in the slitting device, thereby reducing the dependence on the operator with high skill level, and further improving the adjustment efficiency of the position of the knife holder.

[0049] Based on the above considerations, the application provides a method for adjusting the position of a knife holder in a slitting device. When the feedback torque fluctuation of a current feedback torque set of the slitting device during slitting is greater than a first torque threshold, the adjustment priority order of the knife holder in multiple directions is determined according to the current feedback torque set and a preset initial feedback torque set. The initial feedback torque set is a feedback torque set in which the feedback torque fluctuation of the slitting device during slitting is less than or equal to a second torque threshold, and the first torque threshold is greater than or equal to the second torque threshold. The position of the knife holder is adjusted according to the adjustment priority order of the knife holder in multiple directions. In this way, when the feedback torque fluctuation of the current feedback torque set of the slitting device during slitting is greater than the first torque threshold, it indicates that the deviation of the knife holder in the slitting device will cause low slitting quality during slitting. Therefore, the position of the knife holder in the slitting device is adjusted, which reduces the phenomenon of adjusting the knife holder when the knife holder does not deviate, improves the rationality of adjusting the position of the knife holder in the slitting device, and thus improves the slitting quality of the slitting device. Moreover, the position of the knife holder is adjusted according to the adjustment priority order of the knife holder in multiple directions, so that the position of the knife holder in the slitting device is adjusted from the direction that affects the feedback torque fluctuation the most. Therefore, by adjusting the position of the knife holder a few times, the feedback torque fluctuation of the current feedback torque set of the slitting device during slitting is greatly reduced, which helps the feedback torque fluctuation of the slitting device during slitting to quickly reach the required torque threshold, improves the adjustment efficiency of the position of the knife holder, and the controller controls the adjustment of the position of the knife holder in the application embodiment, without the need for an operator to finely adjust the position of the knife holder in the slitting device, thereby reducing the dependence on operators with high skill levels and further improving the adjustment efficiency of the position of the knife holder.

[0050] The following describes some implementations of the slitting device:

[0051] In some embodiments, the slitting device can include a main body, a knife shaft connected to the main body, and a knife holder connected to the main body. The first blade is provided on the knife shaft, and the second blade is provided on the knife holder. The first blade and the second blade rotate in opposite directions at the same speed to slit the material when the material arrives.

[0052] In other embodiments, the slitting device can include a main body, two knife holders (first knife holder and second knife holder) connected to the main body, a first blade provided on the first knife holder, and a second blade provided on the second knife holder. The first blade and the second blade rotate in opposite directions at the same speed to slit the material when the material arrives.

[0053] Among them, the tool holder in the embodiments of the present application can be any tool holder listed in the above embodiments.

[0054] The material in the embodiments of the present application can be any material that needs to be slitting. Exemplarily, the material can include large sheet polar pieces. Among them, the large sheet polar piece refers to the mother sheet or large roll material after coating and rolling (compaction) are completed in the battery polar piece manufacturing process, but has not yet been cut into a single battery required size. Exemplarily, the material can include packaging film material, paper material, metal material, textile material or composite material, etc.

[0055] Unless otherwise specified, the method in any embodiment of the present application can be applied to a computer device, can be applicable to a controller, and the controller can be applied to a computer device or a slitting device. Exemplarily, the computer device can be connected to the slitting device, and the controller in the computer device can at least control the tool holder in the slitting device. Exemplarily, the computer device can include any one or a combination of at least two of the following: a programmable logic controller (PLC) device, a control device, an upper computer, a central control device, a device in a slitting work station in a production scene, a server, a mobile phone, a tablet computer, a computer with transceiver function, a palm computer, a desktop computer, a personal digital assistant, a portable media player, a smart speaker, a navigation device, a smart watch, smart glasses, a smart necklace and other wearable devices, a pedometer, a digital TV, a virtual reality (VR) device, an augmented reality (AR) device, a device in industrial control, etc.

[0056] Figure 1 The flowchart of the tool holder position adjustment method provided for some embodiments of the slitting device is shown in FIG. 1, and the method includes the following steps: Figure 1

[0057] S101, in the case that the feedback torque fluctuation of the current feedback torque set of the slitting device when slitting the material is greater than the first torque threshold, the adjustment priority order of the tool holder in the slitting device in multiple directions is determined according to the current feedback torque set and the preset initial feedback torque set; wherein the initial feedback torque set is a feedback torque set of the slitting device when slitting the material, the feedback torque fluctuation of which is less than or equal to the second torque threshold, and the first torque threshold is greater than or equal to the second torque threshold.

[0058] ​In some embodiments, before S101, the method can further include the following steps: obtaining a current feedback torque set of the slitting device when slitting the material, and obtaining an initial feedback torque set of the slitting device when slitting the material; determining a feedback torque fluctuation of the current feedback torque set, and determining a feedback torque fluctuation of the initial feedback torque set.

[0059] The feedback torque is the actual generated / withstood torque value collected and returned by a torque detection element (such as a torque sensor, a servo motor encoder, etc.). For example, the torque detection element can be arranged on a motor shaft for driving the rotation of a blade in a knife holder, or the torque detection element can be arranged on a knife shaft connected with the blade in the knife holder.

[0060] The feedback torque set in the embodiments of the present application can include the feedback torque set collected under the condition that the same slitting speed is adopted for the same property of the material. The feedback torque set can be a set of feedback torques at each time point within a preset time length. The property of the material can include at least one of the following: material, thickness, hardness, etc. For example, in the embodiments of the present application, the method can be used for adjusting the position of the knife holder under the condition that each property of the material is slitted by the slitting device and each slitting speed is used.

[0061] The feedback torque fluctuation of the feedback torque set in the embodiments of the present application can include the difference between the maximum feedback torque and the minimum feedback torque in the feedback torque set.

[0062] The current feedback torque set can be acquired after the initial feedback torque set. The following describes the acquisition scenario of the initial feedback torque set in the embodiments of the present application: in the case that the slitting device is installed, the knife holder can be moved according to experience to adjust the position of the knife holder until it is detected that the feedback torque fluctuation of the feedback torque set is less than or equal to the second torque threshold, and the detected feedback torque set is determined as the initial feedback torque set. In some embodiments, in the case that the initial feedback torque set is determined, the current position of the knife holder can be determined as the initial position of the knife holder, and in the case that the knife holder is in the initial position, the position of the knife holder is reasonable and the slitting quality of the slitting device when slitting the material is qualified. Subsequently, the current feedback torque set is continuously detected during the slitting of the material by the slitting device. During the use of the slitting device, the position of the knife holder in the slitting device is offset due to factors such as wear or looseness of the transmission components, deformation of parts, load impact, etc. In such a precision instrument as the slitting device, the amount of offset of the position of the knife holder is small and is not easy to detect, and the offset of the position of the knife holder will cause problems such as burrs, uneven edges, etc. when the slitting device is slitting materials such as large pieces of pole pieces, i.e. the slitting quality of the slitting device when slitting the material is unqualified, and the unqualified slitting of the material can be reflected from the fact that the feedback torque fluctuation of the current feedback torque set is greater than the first torque threshold.

[0063] In some embodiments, the torque threshold (for example, any one of the first to fourth torque thresholds herein) can be a fixed threshold. In other embodiments, the torque threshold can be flexibly determined according to at least one of the quality requirements required for slitting the material, the properties of the material being slitted, etc.

[0064] The plurality of directions can include at least two of the following: lateral direction, longitudinal direction, vertical direction (or referred to as X-axis direction, Y-axis direction, Z-axis direction). For example, the plurality of directions in the embodiments of the present application can include lateral direction, longitudinal direction and vertical direction. By controlling the lateral movement of the knife holder, the gap between the blades can be changed. By controlling the longitudinal movement of the knife holder, the alignment between the blades can be controlled, and by controlling the vertical movement of the knife holder, the overlap amount (i.e. the amount of overlapping blades) between the blades can be changed.

[0065] In some embodiments, determining the adjustment priority order of the knife holder in the slitting device in multiple directions according to the current feedback torque set and the preset initial feedback torque set can include: obtaining a first acquisition time of the current feedback torque set and a second acquisition time of the initial feedback torque set, and determining the adjustment priority order of the knife holder in multiple directions according to a time difference between the first acquisition time and the second acquisition time. Illustratively, a corresponding relationship between the time length and the adjustment priority order can be obtained, and the adjustment priority order of the knife holder in multiple directions can be determined according to the corresponding relationship and the time difference.

[0066] S102, adjusting the position of the knife holder according to the adjustment priority order of the knife holder in multiple directions.

[0067] In some embodiments, S102 can include: obtaining a preset movement step length of the knife holder; and adjusting the position of the knife holder according to the preset movement step length and the adjustment priority order of the knife holder in multiple directions.

[0068] Illustratively, according to the adjustment priority order of the knife holder in multiple directions, one direction that has not been adjusted and has the highest priority (hereinafter referred to as the target direction) can be obtained, the target direction includes a positive direction and a negative direction, a preset movement step length in the positive direction of the target direction can be controlled, and it can be detected whether the feedback torque fluctuation of the feedback torque set after the movement of the knife holder (i.e., the feedback torque set of the slitting device when cutting the material after the movement of the knife holder) is reduced. The following will be described in two aspects of reduction and increase respectively:

[0069] In the case of reduction, it indicates that the movement direction is accurate; it is determined whether the feedback torque fluctuation of the feedback torque set after the movement of the knife holder satisfies less than or equal to a fourth torque threshold, and in the case of satisfaction, it indicates that the position of the knife holder is reasonable and meets the slitting quality requirement, and then it is determined that the adjustment of the position of the knife holder is completed; if not, continue to move the preset movement step length in the positive direction of the target direction until the feedback torque fluctuation of the feedback torque set after the movement of the knife holder satisfies less than or equal to the fourth torque threshold, and then it is determined that the adjustment of the position of the knife holder is completed, or until the feedback torque fluctuation of the feedback torque set after the movement of the knife holder starts to increase again, and then the preset movement step length in the reverse direction of the target direction is controlled, and the process of obtaining the one direction that has not been adjusted and has the highest priority according to the adjustment priority order of the knife holder in multiple directions is returned to be executed until the adjustment of the last direction is completed.

[0070] In the case of rising, indicating that the moving direction is inaccurate, then moving a preset moving step in the reverse direction of the target direction, returning to the original position which is not moved in the target direction, then moving a preset moving step in the reverse direction of the target direction, so that the tool holder moves in the reverse direction based on the original position, detecting whether the feedback torque fluctuation amount of the feedback torque set after the tool holder moves is reduced; in the case of still rising, indicating that there is no need to move in the target direction, then controlling to move a preset moving step in the positive direction of the target direction, returning to execute the step of obtaining one direction which is not adjusted and has the highest priority according to the adjustment priority order of the tool holder in multiple directions; in the case of falling, indicating that the moving direction is accurate; determining whether the feedback torque fluctuation amount of the feedback torque set after the tool holder moves meets the condition of being less than or equal to the fourth torque threshold, in the case of meeting, indicating that the tool holder position is reasonable, meeting the slitting quality requirement, then determining that the tool holder position adjustment is completed; if not meeting, continuing to move a preset moving step in the reverse direction of the target direction, until the feedback torque fluctuation amount of the feedback torque set after the tool holder moves meets the condition of being less than or equal to the fourth torque threshold, determining that the tool holder position adjustment is completed, or until the feedback torque fluctuation amount of the feedback torque set after the tool holder moves starts to rise again, controlling to move a preset moving step in the positive direction of the target direction, returning to execute the step of obtaining one direction which is not adjusted and has the highest priority according to the adjustment priority order of the tool holder in multiple directions, until the adjustment of the last direction is completed.

[0071] Exemplarily, in the case of completing the adjustment of the last direction, if the feedback torque fluctuation amount of the feedback torque set after the tool holder moves meets the condition of being less than or equal to the fourth torque threshold, it is determined that the tool holder position adjustment is completed; if the feedback torque fluctuation amount of the feedback torque set after the tool holder moves still does not meet the condition of being less than or equal to the fourth torque threshold, it is determined that the tool holder position is not the factor causing the low slitting quality of the slitting device, and the indication information of replacing the blade in the slitting device can be output.

[0072] In the technical scheme provided by the embodiments of the present application, when the feedback torque fluctuation of the current feedback torque set of the slitting device in the process of slitting the material is greater than the first torque threshold, it indicates that the deviation of the knife holder in the slitting device will cause low slitting quality of the slitting device in the process of slitting the material, so that the position of the knife holder in the slitting device is adjusted again, which reduces the phenomenon of adjusting the knife holder when the knife holder does not deviate in the slitting device, improves the rationality of the position adjustment of the knife holder in the slitting device, and further improves the slitting quality of the slitting device. Moreover, the position of the knife holder is adjusted according to the priority order of the adjustment of the knife holder in multiple directions, so that the position of the knife holder in the slitting device is adjusted from the direction that most affects the feedback torque fluctuation, thereby greatly reducing the feedback torque fluctuation of the current feedback torque set of the slitting device in the process of slitting the material through a small number of position adjustments of the knife holder, which is conducive to the feedback torque fluctuation of the slitting device in the process of slitting the material quickly reaching the required torque threshold, improving the adjustment efficiency of the position of the knife holder, and the controller in the embodiments of the present application controls the position adjustment of the knife holder, without the need for an operator to finely adjust the position of the knife holder in the slitting device, thereby reducing the dependence on operators with high skill levels, and further improving the adjustment efficiency of the position of the knife holder.

[0073] In some embodiments, the priority order of the adjustment of the knife holder in multiple directions is determined according to the current feedback torque set and the preset initial feedback torque set, including: determining a knife holder position adjustment amount according to the current feedback torque set and the preset initial feedback torque set; and determining the priority order of the adjustment of the knife holder in multiple directions according to the knife holder position adjustment amount.

[0074] Exemplarily, the knife holder position adjustment amount can include an adjustment amount in each of the multiple directions. For example, the knife holder position adjustment amount can be (x, y, z), x, y, and z are all real numbers, (x, y, z) respectively represents the distance of movement in the horizontal direction, the vertical direction, and the vertical direction, and a positive value represents movement in the positive direction, and a negative value represents movement in the opposite direction.

[0075] In some embodiments, the knife holder position adjustment amount is determined according to the current feedback torque set and the preset initial feedback torque set, which can include: determining a current feedback torque similarity according to the current feedback torque set and the preset initial feedback torque set; obtaining a specified mapping relationship between the position deviation and the feedback torque similarity; and determining the knife holder position adjustment amount in the slitting device according to the current feedback torque similarity and the specified mapping relationship. Exemplarily, the current feedback torque similarity can be the similarity between the current feedback torque set and the preset initial feedback torque set.

[0076] In some embodiments, determining the knife holder position adjustment amount according to the current feedback torque set and the preset initial feedback torque set can include: obtaining eigenvalues of the current feedback torque set and eigenvalues of the initial feedback torque set, and obtaining a set mapping relationship between the position offset and the eigenvalue difference; and determining the knife holder position adjustment amount in the slitting device according to the set mapping relationship and the difference between the eigenvalues of the current feedback torque set and the eigenvalues of the initial feedback torque set. Exemplarily, the eigenvalues can include any one of the following: mean value, maximum value, median, variance, and standard deviation.

[0077] In some embodiments, determining the adjustment priority order of the knife holder in multiple directions according to the knife holder position adjustment amount can include: determining the adjustment priority order of the knife holder in multiple directions according to the order of the absolute values of the adjustment amounts in multiple directions (one adjustment amount in each direction) in the knife holder position adjustment amount. For example, the order of the multiple directions corresponding to the order of the multiple adjustment amounts from large to small is determined as the adjustment priority order of the knife holder in multiple directions from high to low. For example, the knife holder position adjustment amount is (0.9 mm, 0.1 mm, -0.5 mm), and the adjustment priority order of the knife holder in multiple directions from high to low is transverse, vertical, and longitudinal.

[0078] In the technical scheme provided by the embodiments of the present application, the knife holder position adjustment amount is determined according to the current feedback torque set and the preset initial feedback torque set, so that the knife holder position adjustment amount can accurately match the real-time changes of the load during slitting, and the accuracy of the determined knife holder position adjustment amount is improved; and the adjustment priority order of the knife holder in multiple directions is determined according to the knife holder position adjustment amount, so that the adjustment direction that is most critical to compensate for the current knife holder attitude deviation can be automatically and accurately identified, the blindness in determining the adjustment priority order is avoided, and the reliability of the determined adjustment priority order is improved.

[0079] Figure 2 A flowchart of a method for determining a knife holder position adjustment amount according to a current feedback torque set and a preset initial feedback torque set is provided for some embodiments, and the method includes the following steps:

[0080] S201, determining a current feedback torque difference degree according to a current feedback torque set and a preset initial feedback torque set.

[0081] Exemplarily, the feedback torque difference degree can include a feedback torque spatial distance or a feedback torque divergence. For example, the spatial distance can include any one of the following: Euclidean distance, Chebyshev distance, and cosine distance.

[0082] For example, the current feedback torque difference degree includes a current feedback torque Euclidean distance. The current feedback torque Euclidean distance can be a Euclidean distance between the current feedback torque set and the preset initial feedback torque set.

[0083] S202, obtain a target mapping relationship between the knife holder position offset and the feedback torque difference degree.

[0084] For example, the target mapping relationship can be preset or obtained according to the test of the slitting device.

[0085] In some embodiments, the knife holder position offset can include a plurality of offsets, the feedback torque difference degree can include a plurality of difference degrees, and the plurality of offsets and the plurality of difference degrees one-to-one correspond. The plurality of difference degrees corresponding to the plurality of offsets is determined as the target mapping relationship.

[0086] In another embodiment, the target mapping relationship can be a function between the knife holder position offset and the feedback torque difference degree.

[0087] S203, determine the knife holder position adjustment amount according to the current feedback torque difference degree and the target mapping relationship.

[0088] In some embodiments, in the case where the plurality of offsets and the plurality of difference degrees corresponding thereto are determined as the target mapping relationship, one of the plurality of difference degrees corresponding to the current feedback torque difference degree is determined as the target difference degree, and the offset corresponding to the target difference degree is determined as the knife holder position adjustment amount.

[0089] In another embodiment, in the case where the target mapping relationship can be a function between the knife holder position offset and the feedback torque difference degree, the current feedback torque difference degree is substituted into the target mapping relationship to obtain the knife holder position adjustment amount.

[0090] In the technical scheme provided by the embodiments of the present application, the difference degree between the current feedback torque set and the preset initial torque set is calculated first, and then the target mapping relationship which accurately describes the quantitative relationship between the knife holder position offset and the feedback torque difference degree is called to finally determine the knife holder position adjustment amount. Thus, the target mapping relationship is used to realize accurate conversion from torque to position. Since the target mapping relationship is a fixed mapping relationship, it has strong anti-interference and repeatability, thereby improving the accuracy of the determined knife holder position adjustment amount.

[0091] The following describes some embodiments of obtaining the target mapping relationship between the knife holder position offset and the feedback torque difference degree:

[0092] In some embodiments, obtaining the target mapping relationship between the tool holder position offset and the feedback torque difference degree comprises: determining a set of test feedback torques of the tool holder when cutting the material at different position offset combinations according to a preset moving step of the tool holder, wherein the position offset combination is an offset of the tool holder relative to an initial position in multiple directions, and the initial position is a position of the cutting device under the initial feedback torque set; and determining the target mapping relationship according to each position offset combination and the corresponding test feedback torque set.

[0093] In the embodiments of the present application, a plurality of position offset combinations can be included. For example, the plurality of position offset combinations can be determined by determining the maximum offset of the positive direction and the reverse direction of each direction in the plurality of directions, and determining the plurality of position offset combinations according to the tool holder position offset and the maximum offset of the positive direction and the reverse direction of each direction in the plurality of directions. For example, the tool holder position offset is 0.1, the maximum offset of the reverse direction and the positive direction of the horizontal direction is 0.1 mm and 0.1 mm respectively, the maximum offset of the reverse direction and the positive direction of the vertical direction is 0.1 mm and 0.2 mm respectively, and the maximum offset of the reverse direction and the positive direction of the vertical direction is 0.1 mm and 0.1 mm respectively. The plurality of position offset combinations includes all or part of the following: (-0.1, -0.1, -0.1), (-0.1, -0.1, 0), (-0.1, -0.1, 0.1), (-0.1, 0, -0.1), (-0.1, 0, 0), (-0.1, 0, 0.1), (-0.1, 0.1, -0.1), (-0.1, 0.1, 0), (-0.1, 0.1, 0.1), (-0.1, 0.2, -0.1), (-0.1, 0.2, 0), (-0.1, 0.2, 0.1), (0, -0.1, -0.1), (0, -0.1, 0), (0, -0.1, 0.1), (0, 0, -0.1), (0, 0, 0.1), (0, 0.1, -0.1), (0, 0.1, 0), (0, 0.1, 0.1), (0, 0.2, -0.1), (0, 0.2, 0), (0, 0.2, 0.1), (0.1, -0.1, -0.1), (0.1, -0.1, 0), (0.1, -0.1, 0.1), (0.1, 0, -0.1), (0.1, 0, 0), (0.1, 0, 0.1), (0.1, 0.1, -0.1), (0.1, 0.1, 0), (0.1, 0.1, 0.1), (0.1, 0.2, -0.1), (0.1, 0.2, 0), (0.1, 0.2, 0.1). For example, the initial position can include (0, 0, 0).

[0094] In some embodiments, the target mapping relationship can be determined according to the position offset combinations and the mapping relationship between the respective test feedback torque sets corresponding to the respective position offset combinations.

[0095] In the technical scheme provided by the embodiments of the present application, the offset combinations of different positions in multiple directions are obtained according to the preset moving step, the test feedback torque set in the actual slitting of the material under each position offset combination is determined, and the target mapping relationship is determined accordingly. Thus, the target mapping relationship is determined based on the actual measurement of the slitting condition, and the different position offset combinations cover the expected variation range and direction. The target mapping relationship is not obtained by inference or estimation, but is determined based on dense and reliable measured data points, thereby improving the accuracy of the determined target mapping relationship.

[0096] In some embodiments, the test feedback torque set of the slitting device in the slitting of the material under the different position offset combinations of the knife holder can be determined according to the preset moving step of the knife holder, including: in each direction, the specified feedback torque set of the slitting device in the slitting of the material is obtained under the condition that the knife holder is moved by the preset moving step each time; in the case where the feedback torque fluctuation of the specified feedback torque set is greater than a third torque threshold, the offset range of the knife holder in each direction is determined according to the number of movements of the knife holder in each direction; the third torque threshold is greater than or equal to the first torque threshold; and the test feedback torque set of the slitting device in the slitting of the material under the different position offset combinations of the knife holder is determined according to the offset range of the knife holder in each direction.

[0097] In some embodiments, the movement in each direction can include movement in the forward direction of each direction and movement in the reverse direction of each direction. Correspondingly, the offset range of the knife holder in each direction is determined according to the number of movements of the knife holder in the forward direction of each direction and the number of movements of the knife holder in the reverse direction of each direction.

[0098] Exemplarily, taking the initial position of the knife holder as a reference, the specified feedback torque set of the slitting device in the slitting of the material is obtained under the condition that the knife holder is moved by the preset moving step each time in the forward direction of each direction; in the case where the feedback torque fluctuation of the specified feedback torque set is greater than a third torque threshold, the maximum offset in the forward direction of each direction of the knife holder is determined according to the number of movements of the knife holder in the forward direction of each direction; then taking the initial position of the knife holder as a reference, the specified feedback torque set of the slitting device in the slitting of the material is obtained under the condition that the knife holder is moved by the preset moving step each time in the reverse direction of each direction; in the case where the feedback torque fluctuation of the specified feedback torque set is greater than a third torque threshold, the maximum offset in the reverse direction of each direction of the knife holder is determined according to the number of movements of the knife holder in the reverse direction of each direction. The range between the maximum offset in the reverse direction of each direction and the maximum offset in the forward direction of each direction is determined as the offset range of the knife holder in each direction.

[0099] In some embodiments, the offset range of the tool holder in each direction can be determined according to the number of movements of the tool holder in the forward direction of each direction and the number of movements of the tool holder in the reverse direction of each direction, and according to the preset movement step. In some other embodiments, the range of the number of movements of the tool holder in the reverse direction of each direction to the number of movements of the tool holder in the forward direction of each direction can be determined as the offset range of the tool holder in each direction.

[0100] In some embodiments, a plurality of different position offset combinations can be determined according to the preset movement step and the offset range of the tool holder in each direction.

[0101] In the technical scheme provided by the embodiments of the present application, after the tool holder moves by the preset movement step each time, the feedback torque fluctuation of the feedback torque set when the slitting device slits the material is determined, and compared with a higher third torque threshold, so that the effective offset range of the tool holder in each direction can be objectively determined, and the condition of performing acquisition of the test feedback torque set in the invalid offset range is avoided, and the effectiveness and efficiency of the determination of the test feedback torque set when the tool holder respectively slits the material under different position offset combinations are improved.

[0102] In some embodiments, the test feedback torque set when the tool holder respectively slits the material under different position offset combinations can be determined according to the offset range of the tool holder in each direction, including: determining each position offset combination according to the offset range of the tool holder in each direction; and determining the specified feedback torque set when the tool holder respectively slits the material under each position offset combination as each test feedback torque set.

[0103] In the technical scheme provided by the embodiments of the present application, each position offset combination is determined according to the offset range of the tool holder in each direction, so that a plurality of different offset combinations of the tool holder can be objectively determined, and the feedback torque set under the different offset combinations is determined, and the feedback torque set under other offset combinations is no longer determined, and the effectiveness and efficiency of the determination of each test feedback torque set are improved.

[0104] The following describes some embodiments of determining the target mapping relationship according to each position offset combination and the corresponding test feedback torque set: determining the test feedback torque difference degree according to the initial feedback torque set and each test feedback torque set; determining the change rate of the test feedback torque difference degree in each direction according to each position offset combination and the corresponding test feedback torque difference degree; and determining the target mapping relationship according to the test feedback torque difference degree and the change rate of the test feedback torque difference degree in each direction.

[0105] Exemplarily, each test feedback torque difference degree can be a difference degree between the initial feedback torque set and each test feedback torque set.

[0106] For any offset combination (x1, y1, z1), the test feedback torque difference degree corresponding to (x1, y1, z1) is A1, the test feedback torque difference degree corresponding to (x1+1, y1, z1) is A2, and the change rate of A1 in the lateral direction is A2-A1; the test feedback torque difference degree corresponding to (x1, y1+1, z1) is A3, and the change rate of A1 in the longitudinal direction is A3-A1; the test feedback torque difference degree corresponding to (x1, y1, z1+1) is A4, and the change rate of A1 in the vertical direction is A4-A1.

[0107] In some embodiments, each test feedback torque difference degree and the change rate of each test feedback torque difference degree in each direction are determined as the target mapping relationship.

[0108] In the technical scheme provided by the embodiments of the present application, the target mapping relationship is determined not only according to each test feedback torque difference degree, but also according to the change gradient of each test feedback torque difference degree in each direction. Each test feedback torque difference degree reflects the corresponding relationship between the feedback torque difference degree and the position offset combination, and the change gradient of each test feedback torque difference degree in each direction can quantify the sensitivity and change trend of the feedback torque difference degree to the position offset, so that the target mapping relationship constructed has stronger nonlinear fitting capability and spatial prediction accuracy, and the effectiveness of the determined target mapping relationship is improved.

[0109] The following describes an embodiment of adjusting the tool holder position according to the adjustment priority order of the tool holder in multiple directions:

[0110] In some embodiments, adjusting the tool holder position according to the adjustment priority order of the tool holder in multiple directions includes: adjusting the tool holder position according to the tool holder position adjustment amount and the adjustment priority order of the tool holder in multiple directions.

[0111] Exemplarily, the unadjusted direction with the highest priority (hereinafter referred to as the target direction) can be obtained according to the adjustment priority order of the tool holder in multiple directions; the adjustment amount in the target direction is determined from the tool holder position adjustment amount, and the tool holder position is adjusted according to the adjustment amount in the target direction; it is detected whether the feedback torque fluctuation amount of the feedback torque set after the tool holder moves satisfies less than or equal to the fourth torque threshold, and in the case of satisfaction, it is determined that the tool holder position adjustment is completed, and in the case of non-satisfaction, it is returned to execute the obtaining of the unadjusted direction with the highest priority according to the adjustment priority order of the tool holder in multiple directions until the adjustment of the last direction is completed.

[0112] Exemplarily, in the case that the last direction adjustment is completed, if the feedback torque fluctuation of the feedback torque set after the tool holder is moved meets the condition of being less than or equal to the fourth torque threshold, it is determined that the tool holder position adjustment is completed.

[0113] Exemplarily, in the case that the last direction adjustment is completed, if the feedback torque fluctuation of the feedback torque set after the tool holder is moved still does not meet the condition of being less than or equal to the fourth torque threshold, the position of the tool holder can be fine-adjusted.

[0114] Exemplarily, in the case that the last direction adjustment is completed, if the feedback torque fluctuation of the feedback torque set after the tool holder is moved still does not meet the condition of being less than or equal to the fourth torque threshold, the indication information of replacing the blade in the slitting device can be output.

[0115] In the technical scheme provided by the embodiments of the present application, the action of adjusting the position of the tool holder is not independently or disorderly performed in each direction, but is strictly performed according to the adjustment priority order of the tool holder in multiple directions, so that the tool holder is driven to move a corresponding adjustment amount in the direction that contributes most to the feedback torque difference, which not only helps to reduce the number of adjustments of the tool holder position, but also reduces the mechanical wear and improves the effectiveness of adjusting the tool holder position.

[0116] Figure 3 For some embodiments, a flowchart of a method for adjusting the position of a tool holder according to a tool holder position adjustment amount and an adjustment priority order of the tool holder in multiple directions is shown in Figure 3 The method comprises the following steps:

[0117] S301, in the case that the tool holder position is adjusted by using the tool holder position adjustment amount, obtaining a target feedback torque set of a slitting device when the slitting device is slitting a material.

[0118] Exemplarily, the tool holder position can be adjusted according to the adjustment priority order of the tool holder in multiple directions and the tool holder position adjustment amount. Exemplarily, the tool holder position can be adjusted according to any direction adjustment order.

[0119] For example, the tool holder position adjustment amount is (0.1 mm, -0.3 mm, 0.2 mm), the tool holder is moved 0.1 mm in the positive direction of the horizontal direction, 0.3 mm in the reverse direction of the longitudinal direction, and 0.2 mm in the positive direction of the vertical direction, that is, the tool holder position is adjusted by using the tool holder position adjustment amount.

[0120] S302, in the case that the feedback torque fluctuation of the target feedback torque set is less than or equal to the fourth torque threshold, it is determined that the tool holder position adjustment is completed; the fourth torque threshold is less than the first torque threshold and greater than or equal to the second torque threshold.

[0121] Exemplarily, in a case that the feedback torque fluctuation amount of the target feedback torque set is less than or equal to the fourth torque threshold, it indicates that the position of the tool holder is reasonable and meets the slitting quality requirement, and then it is determined that the tool holder position adjustment is completed.

[0122] S303, in a case that the feedback torque fluctuation amount of the target feedback torque set is greater than the fourth torque threshold, the tool holder position is continuously adjusted according to the adjustment priority order of the tool holder in multiple directions and the preset moving step length of the tool holder.

[0123] In the technical scheme provided by the embodiments of the present application, it is considered that as the use time of the slitting device increases, the position of the blade on the tool shaft may change, the blade may also be worn, and when the feedback torque fluctuation amount of the slitting device is less than or equal to the second torque threshold, the position of the tool holder will also change. Instead of outputting the indication information of replacing the blade in the slitting device, the tool holder position is continuously adjusted according to the adjustment priority order of the tool holder in multiple directions and the preset moving step length of the tool holder in a case that the feedback torque fluctuation amount of the target feedback torque set is greater than the fourth torque threshold. Therefore, the replacement frequency of the blade in the slitting device is reduced, and the consumption of the blade in the slitting device is reduced.

[0124] In some embodiments, continuously adjusting the tool holder position according to the adjustment priority order of the tool holder in multiple directions and the preset moving step length of the tool holder includes: in a case that the tool holder position is adjusted by the preset moving step length each time, acquiring a set feedback torque set of the slitting device when slitting the material according to the adjustment priority order; and determining that the tool holder position adjustment is completed in a case that the feedback torque fluctuation amount of the set feedback torque set is less than or equal to the fourth torque threshold.

[0125] Exemplarily, the implementation manner of continuously adjusting the tool holder position according to the adjustment priority order of the tool holder in multiple directions and the preset moving step length of the tool holder can refer to the description of the implementation manner of adjusting the tool holder position according to the preset moving step length and the adjustment priority order of the tool holder in multiple directions in the above embodiments, which will not be described here.

[0126] In the technical scheme provided by the embodiments of the present application, the tool holder is gradually displaced according to the adjustment priority order and the preset moving step length, and after completing the adjustment of one step each time, the acquired set feedback torque set is evaluated. Therefore, the adjustment times of the tool holder position can be reduced as much as possible, and the adjustment action times and time are reduced, and the efficiency of the tool holder position adjustment is improved.

[0127] In some embodiments, the method further includes: in a case that the feedback torque fluctuation amount of the set feedback torque set is greater than the fourth torque threshold, outputting the indication information of replacing the blade in the slitting device.

[0128] In the technical solution provided in this application embodiment, when the fluctuation of the set feedback torque set obtained after fine adjustment according to the priority order and preset movement step size is still higher than the strict fourth torque threshold, it indicates that even by optimizing the blade holder position, the slitting load cannot be restored to stability. That is, the blade itself has been worn to the point that its performance degradation cannot be compensated by position compensation. Therefore, by automatically outputting the instruction information for replacing the blade, it is beneficial to replace the blade in the slitting device in a timely manner, reduce the situation of slitting quality decline caused by excessive blade wear, and improve the slitting quality of the slitting device.

[0129] Based on the same inventive concept, this application also provides a slitting device for adjusting the position of the slitting device to implement the aforementioned method for adjusting the position of the slitting device. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more embodiments of the slitting device for adjusting the position of the slitting device provided below can be found in the limitations of the slitting device for adjusting the position of the slitting device described above, and will not be repeated here.

[0130] In one exemplary embodiment, Figure 4 This is a schematic diagram of the structure of the blade holder position adjustment device in some embodiments of the slitting apparatus, such as... Figure 4 As shown, the blade holder position adjustment device 400 in the slitting device includes:

[0131] The determining module 401 is used to determine the adjustment priority order of the blade holder in multiple directions in the slitting device according to the current feedback torque set and the preset initial feedback torque set when the feedback torque fluctuation of the current feedback torque set of the slitting device when slitting materials is greater than the first torque threshold; wherein, the initial feedback torque set is the feedback torque set in which the feedback torque fluctuation of the slitting device when slitting materials is less than or equal to the second torque threshold, and the first torque threshold is greater than or equal to the second torque threshold;

[0132] The adjustment module 402 is used to adjust the position of the tool holder according to the adjustment priority order of the tool holder in multiple directions.

[0133] In some embodiments, the determining module 401 includes an adjustment amount determining unit and a sequence determining unit; the adjustment amount determining unit is used to determine the tool holder position adjustment amount based on the current feedback torque set and the preset initial feedback torque set; the sequence determining unit is used to determine the adjustment priority order of the tool holder in multiple directions based on the tool holder position adjustment amount.

[0134] In some embodiments, the adjustment amount determination unit is further configured to determine a current feedback torque difference degree according to the current feedback torque set and the preset initial feedback torque set; obtain a target mapping relationship between the tool holder position offset amount and the feedback torque difference degree; and determine the tool holder position adjustment amount according to the current feedback torque difference degree and the target mapping relationship.

[0135] In some embodiments, the adjustment amount determination unit is further configured to determine a test feedback torque set of the slitting device when the tool holder is used to slit the material under each position offset combination according to a preset movement step length of the tool holder; each position offset combination is an offset of the tool holder in each direction relative to an initial position of the slitting device under the initial feedback torque set; and determine the target mapping relationship according to each position offset combination and a corresponding test feedback torque set.

[0136] In some embodiments, the adjustment amount determination unit is further configured to obtain a specified feedback torque set of the slitting device when the tool holder is used to slit the material under the condition that the tool holder is moved by the preset movement step length in each direction each time; determine a range of the offset of the tool holder in each direction according to a number of times of movement of the tool holder in each direction under the condition that a feedback torque fluctuation of the specified feedback torque set is greater than a third torque threshold; the third torque threshold is greater than or equal to the first torque threshold; and determine the test feedback torque set of the slitting device when the tool holder is used to slit the material under each position offset combination according to the range of the offset of the tool holder in each direction.

[0137] In some embodiments, the adjustment amount determination unit is further configured to determine each position offset combination according to the range of the offset of the tool holder in each direction; and determine the test feedback torque set of the slitting device when the tool holder is used to slit the material under each position offset combination as each test feedback torque set according to the specified feedback torque set of the slitting device when the tool holder is used to slit the material under each position offset combination.

[0138] In some embodiments, the adjustment amount determination unit is further configured to determine a test feedback torque difference degree according to the initial feedback torque set and each test feedback torque set; determine a change rate of each test feedback torque difference degree in each direction according to each position offset combination and a corresponding test feedback torque difference degree; and determine the target mapping relationship according to each test feedback torque difference degree and the change rate of each test feedback torque difference degree in each direction.

[0139] In some embodiments, the adjustment module 402 is further configured to adjust the position of the tool holder according to the tool holder position adjustment amount and an adjustment priority order of the tool holder in the plurality of directions.

[0140] In some embodiments, the adjustment module 402 includes a torque set determination unit and an adjustment unit; the torque set determination unit is used to obtain a target feedback torque set of the slitting device when slitting materials, after the tool holder position adjustment is completed using the tool holder position adjustment amount; the adjustment unit is used to determine that the tool holder position adjustment is completed when the feedback torque fluctuation of the target feedback torque set is less than or equal to a fourth torque threshold; the fourth torque threshold is less than a first torque threshold and greater than or equal to a second torque threshold; when the feedback torque fluctuation of the target feedback torque set is greater than the fourth torque threshold, the tool holder position is further adjusted according to the adjustment priority order of the tool holder in multiple directions and the preset movement step size of the tool holder.

[0141] In some embodiments, the adjustment unit is further configured to, according to the adjustment priority order, obtain the set of set feedback torques of the slitting device when slitting materials, after each adjustment of the tool holder position using a preset movement step size is completed; and determine that the adjustment of the tool holder position is completed when the feedback torque fluctuation of the set of set feedback torques is less than or equal to a fourth torque threshold.

[0142] In some embodiments, the adjustment unit is further configured to output instruction information for replacing the blades in the slitting device when the feedback torque fluctuation of the set feedback torque set is greater than the fourth torque threshold.

[0143] The description of the blade holder position adjustment device embodiment in the above slitting device is similar to the description of the method embodiment described above, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

[0144] The various modules in the blade holder position adjustment device of the above-mentioned slitting apparatus can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0145] Figure 5 Schematic diagrams of the slitting apparatus provided in some embodiments, such as Figure 5 As shown, the slitting device 50 includes a controller 51, a main body 52, a blade holder 53, and a blade shaft 54. Both the blade holder 53 and the blade shaft 54 ​​are connected to the main body 52, and the controller 51 is connected to the blade holder 53. A first blade is mounted on the blade holder 53. Figure 5 (Not shown in the image) A second blade is provided on the cutter shaft 54 ​​( Figure 5 (not shown in the diagram), the first blade and the second blade cooperate to cut the material; the controller 51 is used to execute the steps of the method in any of the above embodiments when executing a computer program.

[0146] In some embodiments, the slitting device 50 can further comprise a driving motor, in Figure 5 The driving motor comprises a motor 551 for controlling the lateral movement and a motor 552 for controlling the vertical movement, in other embodiments, the driving motor comprises the motor 551 for controlling the lateral movement, the motor 552 for controlling the vertical movement and a motor for controlling the longitudinal movement, the controller 51 connects the knife holder 53 through the movement driving motor, the controller 51 is used to control the movement of the knife holder 53 by controlling the operation of the movement driving motor.

[0147] In some embodiments, the slitting device 50 can further comprise a first rotary motor (not shown in Figure 5 ) and a second rotary motor (not shown in Figure 5 ), the controller 51 connects the first knife through the first rotary motor, the controller 51 connects the second knife through the second rotary motor, the controller 51 is used to drive the first knife to rotate by driving the rotation of the first rotary motor, the controller 51 is used to drive the second knife to rotate by driving the rotation of the second rotary motor.

[0148] In an exemplary embodiment, Figure 6 A structural schematic diagram of a computer device provided for some embodiments includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. Among them, the processor, the memory and the input / output interface are connected through a system bus, the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capability. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals in wired or wireless mode, and wireless mode can be realized through wireless fidelity (Wireless Fidelity, WIFI), mobile cellular network, near field communication (Near Field Communication, NFC) or other technologies. The computer program is executed by the processor to realize a knife holder position adjustment method in a slitting device. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer overlaid on the display screen, or a key, trackball or touchpad arranged on the shell of the computer device, or an external keyboard, touchpad or mouse, etc.

[0149] Those skilled in the art can understand that Figure 6 The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. The specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0150] For example, the computer device includes a memory and a processor. The memory stores a computer program. The processor implements the steps of the method of any of the above embodiments when executing the computer program.

[0151] In one embodiment, a computer readable storage medium is provided. A computer program is executed by a processor to implement the steps of the method provided by any of the above embodiments. For example, the computer program is executed by the processor to implement: in a case where a feedback torque fluctuation amount of a current feedback torque set of the slitting device when the slitting device is slitting the material is greater than a first torque threshold, determining an adjustment priority order of the knife holder in multiple directions in the slitting device according to the current feedback torque set and a preset initial feedback torque set; wherein the initial feedback torque set is a feedback torque set in which a feedback torque fluctuation amount of the slitting device when the slitting device is slitting the material is less than or equal to a second torque threshold, and the first torque threshold is greater than or equal to the second torque threshold; and adjusting the position of the knife holder according to the adjustment priority order of the knife holder in multiple directions.

[0152] In one embodiment, a computer program product is provided. The computer program product includes a computer program. The computer program is executed by a processor to implement the steps of the method provided by any of the above embodiments. For example, the computer program is executed by the processor to implement: in a case where a feedback torque fluctuation amount of a current feedback torque set of the slitting device when the slitting device is slitting the material is greater than a first torque threshold, determining an adjustment priority order of the knife holder in multiple directions in the slitting device according to the current feedback torque set and a preset initial feedback torque set; wherein the initial feedback torque set is a feedback torque set in which a feedback torque fluctuation amount of the slitting device when the slitting device is slitting the material is less than or equal to a second torque threshold, and the first torque threshold is greater than or equal to the second torque threshold; and adjusting the position of the knife holder according to the adjustment priority order of the knife holder in multiple directions.

[0153] Those of ordinary skill in the art can understand that all or part of the processes in the above embodiments can be completed by a computer program instructing related hardware. The computer program can be stored in any non-volatile computer readable storage medium. When the computer program is executed, it can include the processes of the above embodiments.

[0154] The processor, each functional module or each functional unit in any of the embodiments of the present application can include an integration of any one or more of the following: a general purpose processor, an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a neural-network processing units (NPU), a controller, a microcontroller, a microprocessor, a programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, a data processing logic device based on quantum computing, an Artificial Intelligence (AI) processor, and the like. The general purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0155] The memory or computer readable storage medium in any of the embodiments of the present application can include at least one of a non-volatile memory and a volatile memory. The non-volatile memory includes integration of any one or more of the following: Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Ferromagnetic Random Access Memory (FRAM), Flash Memory, magnetic random access memory, optical disk, Compact Disc Read-Only Memory (CD-ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, volatile memory, and the like. The volatile memory includes integration of any one or more of the following: Random Access Memory (RAM) or external cache memory, and the like. As an illustration and not as a limitation, the RAM can be in a variety of forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), and the like.

[0156] The acquisition, transmission, storage, use, processing and the like of data in the technical solutions of the present application comply with relevant provisions of national laws and regulations. It should be noted that in the embodiments of the present application, some industry existing solutions of software, components, models and the like may be mentioned, which should be considered as exemplary, and the purpose is only to illustrate the feasibility of the implementation of the technical solutions of the present application, but it does not mean that the applicant has or will necessarily use the solution. In order to make the description simple, all possible combinations of each technical feature in the above embodiments are not described, however, as long as the combination of these technical features does not exist, it should be considered as the scope of the present application.

[0157] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A method of adjusting the position of a knife holder in a slitting device, characterized in that The method comprises: In a case where a feedback torque fluctuation amount of a current feedback torque set of the slitting device when slitting a material is greater than a first torque threshold, determining an adjustment priority order of a knife holder in the slitting device in multiple directions according to the current feedback torque set and a preset initial feedback torque set; wherein the initial feedback torque set is a feedback torque set in which a feedback torque fluctuation amount of the slitting device when slitting a material is less than or equal to a second torque threshold, and the first torque threshold is greater than or equal to the second torque threshold; Adjusting the knife holder position according to the adjustment priority order of the knife holder in the multiple directions.

2. The method of claim 1, wherein, The method comprises: Determining a knife holder position adjustment amount according to the current feedback torque set and the preset initial feedback torque set; Determining the adjustment priority order of the knife holder in the multiple directions according to the knife holder position adjustment amount.

3. The method of claim 2, wherein, The method comprises: Determining a knife holder position adjustment amount according to the current feedback torque set and the preset initial feedback torque set; Determining a current feedback torque difference degree according to the current feedback torque set and the preset initial feedback torque set; Obtaining a target mapping relationship between a knife holder position offset amount and a feedback torque difference degree; 4. The method of claim 3, wherein, Determining the knife holder position adjustment amount according to the current feedback torque difference degree and the target mapping relationship. The method comprises: Determining a test feedback torque set of the knife holder when slitting a material under different position offset amount combinations according to a preset movement step length of the knife holder; the position offset amount combinations are offsets of the knife holder in multiple directions relative to an initial position, and the initial position is a position of the slitting device under the initial feedback torque set; 5. The method of claim 4, wherein, Determining the target mapping relationship according to each position offset amount combination and a corresponding test feedback torque set. The method comprises: In a case where a specified feedback torque set of the slitting device when slitting a material is greater than a third torque threshold, determining an offset range of the knife holder in each of the directions according to a movement frequency of the knife holder in each of the directions; the third torque threshold is greater than or equal to the first torque threshold; Determining a test feedback torque set of the knife holder when slitting a material under different position offset amount combinations according to the offset range of the knife holder in each of the directions.

6. The method of claim 5, wherein, The method comprises: Determining each position offset amount combination according to the offset range of the knife holder in each of the directions; The specified feedback torque set of the knife holder when slitting the material under each position offset combination is determined as a test feedback torque set.

7. The method of claim 4, wherein, The target mapping relationship is determined according to each position offset combination and the corresponding test feedback torque set. The test feedback torque difference degree is determined according to the initial feedback torque set and the test feedback torque set. The change rate of the test feedback torque difference degree in each direction is determined according to each position offset combination and the corresponding test feedback torque difference degree. The target mapping relationship is determined according to the test feedback torque difference degree and the change rate of the test feedback torque difference degree in each direction.

8. The method according to any one of claims 2 to 7, characterized in that, The knife holder position is adjusted according to the adjustment priority order of the knife holder in multiple directions. The knife holder position is adjusted according to the knife holder position adjustment amount and the adjustment priority order of the knife holder in multiple directions.

9. The method of claim 8, wherein, The knife holder position is adjusted according to the knife holder position adjustment amount and the adjustment priority order of the knife holder in multiple directions. The target feedback torque set of the slitting device when slitting the material is obtained after the knife holder position is adjusted by the knife holder position adjustment amount. The knife holder position adjustment is determined to be completed when the feedback torque fluctuation of the target feedback torque set is less than or equal to a fourth torque threshold value, the fourth torque threshold value being less than the first torque threshold value and greater than or equal to the second torque threshold value. The knife holder position is continuously adjusted according to the adjustment priority order of the knife holder in multiple directions and a preset movement step size of the knife holder when the feedback torque fluctuation of the target feedback torque set is greater than the fourth torque threshold value.

10. The method of claim 9, wherein, The knife holder position is continuously adjusted according to the adjustment priority order of the knife holder in multiple directions and a preset movement step size of the knife holder. A set feedback torque set of the slitting device when slitting the material is obtained after the knife holder position is adjusted by the preset movement step size each time according to the adjustment priority order. The knife holder position adjustment is determined to be completed when the feedback torque fluctuation of the set feedback torque set is less than or equal to the fourth torque threshold value.

11. The method of claim 10, wherein, The method further includes: When the feedback torque fluctuation of the set feedback torque set is greater than the fourth torque threshold value, the indication information of replacing the blade in the slitting device is output.

12. A device for adjusting the position of a knife holder in a slitting device, characterized in that The device includes: The determination module is configured to determine the adjustment priority order of the knife holder in multiple directions according to the current feedback torque set and a preset initial feedback torque set when the feedback torque fluctuation of the current feedback torque set of the slitting device when slitting the material is greater than a first torque threshold value, the initial feedback torque set being a feedback torque set of the slitting device when slitting the material, the feedback torque fluctuation being less than or equal to a second torque threshold value, and the first torque threshold value being greater than or equal to the second torque threshold value. An adjusting module is configured to adjust the position of the tool holder according to a priority order of adjustment of the tool holder in multiple directions.

13. A slitting device, characterized in that The slitting device comprises a controller, a main body, a tool holder and a tool shaft, the tool holder and the tool shaft are connected to the main body; the controller is connected to the tool holder; The tool holder is provided with a first blade, and the tool shaft is provided with a second blade, the first blade and the second blade cooperate to slit the material; The controller is used to implement the steps of the method of any one of claims 1-11 when executing the computer program.

14. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1-11.

15. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1-11.

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