Method and device for adjusting position of cutter holder in slitting device, medium and product

Abstract

The application relates to a method, device, medium and product for adjusting the position of a cutter holder in a slitting device. The method comprises: in the case that the fluctuation of the feedback torque of a current feedback torque set of the slitting device when the slitting device is slitting a material is greater than a first torque threshold, determining the adjustment priority order of the cutter 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 the fluctuation of the feedback torque 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 cutter holder according to the adjustment priority order of the cutter holder in the multiple directions. The method can improve the rationality of the adjustment of the position of the cutter holder in the slitting device, and further improve the slitting quality of the slitting device.

Description

Technical Field

[0001] This application relates to the field of new energy technology, and in particular to a method, device, medium, and product for adjusting the position of the blade holder in a slitting device. Background Technology

[0002] In the field of new energy technology, batteries, as the core carrier of energy storage and conversion, occupy a crucial position. The production process of batteries requires electrode sheets, and the production process of electrode sheets includes the step of slitting large electrode sheets. Therefore, material slitting is a critical processing step, and the slitting device is the core equipment for realizing this process. Taking large electrode sheets as an example, the slitting quality of the large electrode sheets is crucial to the quality of the electrode sheets in the battery.

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

[0004] However, in related technologies, the scheme of adjusting the position of the blade holder in the slitting device based on experience often does not know when to adjust the position of the blade holder, resulting in insufficient rationality of the blade holder position. This leads to problems such as burrs and uneven edges when slitting materials such as large sheets of electrode material, which seriously affects the slitting quality. In addition, related technologies also have the problems of slow blade holder adjustment efficiency and high requirements for manual skill level. Summary of the Invention

[0005] Based on this, this application provides a method, device, medium, and product for adjusting the position of the blade holder in a slitting device, which can improve the rationality of the blade holder position adjustment in the slitting device, thereby improving the slitting quality of the slitting device.

[0006] In a first aspect, this application provides a method for adjusting the position of a blade holder in a slitting device. The method includes: when the feedback torque fluctuation of the current feedback torque set of the slitting device during material slitting is greater than a first torque threshold, determining the adjustment priority order of the blade holder in the slitting device in multiple directions based on the current feedback torque set and a preset initial feedback torque set; wherein, the initial feedback torque set is a set of feedback torques in which the feedback torque fluctuation of the slitting device during material 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; and adjusting the position of the blade holder according to the adjustment priority order of the blade holder in multiple directions.

[0007] In the technical solution provided in this application embodiment, when the feedback torque fluctuation of the current feedback torque set of the slitting device during material slitting is greater than the first torque threshold, it indicates that the offset of the blade holder in the slitting device will lead to low slitting quality when the slitting device slits the material. Therefore, the position of the blade holder in the slitting device is adjusted, reducing the phenomenon of adjusting the blade holder when there is no offset. This improves the rationality of the blade holder position adjustment in the slitting device, thereby improving the slitting quality of the slitting device. Furthermore, the blade holder position is adjusted according to the adjustment priority order of the blade holder in multiple directions, thereby prioritizing the adjustment of the blade holder in multiple directions. The direction that has the greatest impact on the feedback torque fluctuation is used to adjust the position of the blade holder in the slitting device. This significantly reduces the feedback torque fluctuation of the current feedback torque set when the slitting device is cutting materials by adjusting the blade holder position fewer times. This helps the feedback torque fluctuation of the slitting device to quickly reach the required torque threshold when cutting materials, improving the efficiency of blade holder position adjustment. In this embodiment, the controller controls the adjustment of the blade holder position, eliminating the need for operators to make fine adjustments to the blade holder position in the slitting device. This reduces reliance on highly skilled operators and further improves the efficiency of blade holder position adjustment.

[0008] In some embodiments, determining the adjustment priority order of the tool holder in multiple directions in the slitting device based on the current feedback torque set and a preset initial feedback torque set includes: determining the tool holder position adjustment amount based on the current feedback torque set and the preset initial feedback torque set; and determining the adjustment priority order of the tool holder in multiple directions based on the tool holder position adjustment amount.

[0009] In the technical solution provided in this application embodiment, the tool holder position adjustment amount is determined based on the current feedback torque set and the preset initial feedback torque set. This allows the tool holder position adjustment amount to accurately match the real-time changes in load during slitting, improving the accuracy of the determined tool holder position adjustment amount. Furthermore, based on the tool holder position adjustment amount, the adjustment priority order of the tool holder in multiple directions is determined. This enables the automatic and accurate identification of the adjustment direction most critical for compensating the current tool holder attitude deviation, avoiding the blindness in determining the adjustment priority order and improving the reliability of the determined adjustment priority order.

[0010] In some embodiments, determining the tool holder position adjustment amount based on the current feedback torque set and a preset initial feedback torque set includes: determining the degree of difference in the current feedback torque based on the current feedback torque set and the preset initial feedback torque set; obtaining a target mapping relationship between the tool holder position offset and the degree of difference in feedback torque; and determining the tool holder position adjustment amount based on the degree of difference in current feedback torque and the target mapping relationship.

[0011] In the technical solution provided in this application embodiment, the difference between the current feedback torque set and the preset initial torque set is first calculated, and then a pre-established target mapping relationship that accurately describes the quantitative relationship between the tool holder position offset and the difference between the feedback torque is called. Finally, the tool holder position adjustment amount is determined, thereby realizing the accurate conversion from torque to position by using the target mapping relationship. Since the target mapping relationship is a fixed mapping relationship, it has strong anti-disturbance and repeatability consistency, thereby improving the accuracy of the determined tool holder position adjustment amount.

[0012] In some embodiments, obtaining the target mapping relationship between the tool holder position offset and the degree of difference in feedback torque includes: determining the test feedback torque set when the tool holder cuts materials under different combinations of position offsets according to the preset movement step of the tool holder; the position offset combination is the offset of the tool holder relative to the initial position in multiple directions, 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 combination of position offsets and the corresponding test feedback torque set.

[0013] In the technical solution provided in this application embodiment, by obtaining the offset combination of different positions traversing multiple directions according to the preset movement step size, the test feedback torque set when actually cutting materials under each position offset combination is determined, and the target mapping relationship is determined accordingly. Thus, the determination of the target mapping relationship comes from the actual measurement of the real cutting working condition, and the different position offset combinations cover the expected range and direction of change. The target mapping relationship is not obtained by inference or estimation, but is determined based on dense and reliable measured data points, which improves the accuracy of the determined target mapping relationship.

[0014] In some embodiments, determining the set of test feedback torques for cutting materials under different combinations of offsets of the cutter holder according to a preset moving step length of the cutter holder includes: obtaining a specified set of feedback torques for the cutting device when cutting materials, each time the cutter holder is moved by a preset moving step length in each direction; if the feedback torque fluctuation of the specified set of feedback torques is greater than a third torque threshold, determining the offset range of the cutter holder in each direction based on the number of times the cutter holder moves in each direction; the third torque threshold is greater than or equal to a first torque threshold; and determining the set of test feedback torques for cutting materials under different combinations of offsets of the cutter holder according to the offset range of the cutter holder in each direction.

[0015] In the technical solution provided in this application embodiment, after the cutter holder moves by a preset moving step each time, the feedback torque fluctuation of the feedback torque set when the cutting device cuts the material is determined and compared with a higher third torque threshold. This allows for the objective determination of the effective offset range of the cutter holder in each direction, avoiding the situation of obtaining the test feedback torque set within an invalid offset range. This improves the effectiveness and efficiency of the determined test feedback torque set when the cutter holder cuts the material under different offset combinations.

[0016] In some embodiments, determining the set of test feedback torques for cutting materials under different combinations of offsets of the tool holder in each direction, based on the offset range of the tool holder in each direction, includes: determining each combination of offsets of each position based on the offset range of the tool holder in each direction; and determining the specified set of feedback torques for cutting materials under each combination of offsets of the tool holder as each set of test feedback torques.

[0017] In the technical solution provided by the embodiments of this application, the offset combination of each position is determined according to the offset range of the tool holder in each direction, so that multiple different offset combinations of the tool holder can be objectively determined, and the set of feedback torque under the different offset combinations can be determined, instead of determining the set of feedback torque under other offset combinations, thereby improving the effectiveness and efficiency of the determined set of test feedback torque.

[0018] In some embodiments, determining the target mapping relationship based on the combination of position offsets and the corresponding sets of test feedback torques includes: determining the degree of difference of each test feedback torque based on the initial set of feedback torques and the sets of test feedback torques; determining the rate of change of the degree of difference of each test feedback torque in each direction based on the combination of position offsets and the corresponding sets of test feedback torques; and determining the target mapping relationship based on the degree of difference of each test feedback torque and the rate of change of the degree of difference of each test feedback torque in each direction.

[0019] In the technical solution provided in this application embodiment, the target mapping relationship is determined not only based on the degree of difference of each test feedback torque, but also based on the gradient of the change of each test feedback torque degree along each direction. The degree of difference of each test feedback torque reflects the correspondence between the degree of difference of feedback torque and the combination of position offset, while the gradient of the change of each test feedback torque degree along each direction can quantify the sensitivity and trend of the degree of difference of feedback torque to position offset. This makes the constructed target mapping relationship have stronger nonlinear fitting ability and spatial prediction accuracy, and improves the effectiveness of the determined target mapping relationship.

[0020] 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.

[0021] In the technical solution provided in this application embodiment, the action of adjusting the position of the tool holder is not performed independently or randomly in each direction, but strictly follows the priority order of the tool holder adjustment in multiple directions. This allows the tool holder to be driven to move the corresponding adjustment amount in the direction that contributes the most to the difference in feedback torque. This not only helps to reduce the number of times the tool holder position is adjusted, but also reduces mechanical wear and improves the effectiveness of adjusting the tool holder position.

[0022] In some embodiments, 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 includes: when the tool holder position adjustment is completed using the tool holder position adjustment amount, obtaining a target feedback torque set of the slitting device when slitting materials; when the feedback torque fluctuation of the target feedback torque set is less than or equal to a fourth torque threshold, determining that the tool holder position adjustment is completed; 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, continuing to adjust the tool holder position according to the adjustment priority order of the tool holder in multiple directions and a preset movement step size of the tool holder.

[0023] In the technical solution provided in this application embodiment, considering that as the usage time of the slitting device increases, the position of the blade on the cutter shaft may change, and the blade may also wear, causing the position of the cutter holder to change when the feedback torque fluctuation of the slitting device is less than or equal to the second torque threshold, the position of the cutter holder is adjusted according to the adjustment priority order of the cutter holder in multiple directions and the preset movement step size of the cutter holder when the feedback torque fluctuation of the target feedback torque set is greater than the fourth torque threshold, instead of outputting the instruction information to replace the blade in the slitting device, thereby reducing the replacement frequency of the blade in the slitting device and reducing the consumption of the blade in the slitting device.

[0024] In some embodiments, 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, including: according to the adjustment priority order, after each adjustment of the tool holder position using the preset movement step size is completed, obtaining the set of set feedback torques of the slitting device when slitting materials; and determining that the tool holder position adjustment is completed when the feedback torque fluctuation of the set of set feedback torques is less than or equal to a fourth torque threshold.

[0025] In the technical solution provided in this application embodiment, the tool holder is gradually moved by adjusting the priority order and the preset movement step size. After each step adjustment is completed, the obtained set of set feedback torque is evaluated, thereby minimizing the number of times the tool holder position is adjusted, thereby reducing the number of adjustment actions and time, and improving the efficiency of tool holder position adjustment.

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

[0027] 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.

[0028] Secondly, this application provides a tool holder position adjustment device in a slitting apparatus. The device includes: a determining module, configured to determine the adjustment priority order of the tool holder in multiple directions based on 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 apparatus during material slitting is greater than a first torque threshold; wherein the initial feedback torque set is a set of feedback torques where the feedback torque fluctuation of the slitting apparatus during material 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; and an adjusting module, configured to adjust the tool holder position according to the adjustment priority order of the tool holder in multiple directions.

[0029] Thirdly, this application provides a slitting apparatus, which includes a controller, a main body, a blade holder, and a blade shaft, both of which are connected to the main body; the controller is connected to the blade holder; a first blade is provided on the blade holder, and a second blade is provided on the blade shaft, the first blade and the second blade cooperating with each other to slitting materials; the controller is used to execute a computer program to implement the steps of the method in any of the first aspects.

[0030] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method of any one of the first aspects.

[0031] Fifthly, this application provides a computer program product, including a computer program, wherein when the computer program is executed by a processor, it implements the steps of the method of any one of the first aspects. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A flowchart illustrating the method for adjusting the blade holder position in a slitting apparatus provided in some embodiments;

[0034] Figure 2 A flowchart illustrating a method for determining the tool holder position adjustment amount based on a current set of feedback torques and a preset set of initial feedback torques, provided in some embodiments;

[0035] Figure 3 A flowchart illustrating a method for adjusting the position of a tool holder based on the adjustment amount and the priority order of the tool holder in multiple directions, provided for some embodiments;

[0036] Figure 4 A schematic diagram of the blade holder position adjustment device in some embodiments of the slitting apparatus provided;

[0037] Figure 5 Schematic diagrams of the slitting apparatus provided in some embodiments;

[0038] Figure 6 A schematic diagram of the structure of a computer device provided for some embodiments. Detailed Implementation

[0039] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this 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 this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0041] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, "multiple groups" means two or more, and "each" means each of the multiple, unless otherwise explicitly defined.

[0042] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be 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 in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0044] Unless otherwise specified, the order of execution steps in the embodiments of this application is not limited. It should also be noted that any step in the embodiments of this application can be executed independently, that is, the execution of any step in the above embodiments can be performed without depending on the execution of other steps.

[0045] The position of the blade holder in a slitting device can shift due to various reasons. For example, during the use of the slitting device, factors such as wear or loosening of transmission components, deformation of parts, and load impact can cause the position of the blade holder to shift. For instance, in scenarios where blades are replaced, the position of the blade holder after replacement will also shift relative to its previous position. However, if the positional shift of the blade holder in the slitting device is significant, it can cause problems such as burrs and uneven edges when slitting materials such as large electrode sheets, severely affecting the slitting quality.

[0046] In some embodiments, the position offset of the tool holder refers to a shift in the position of the tool holder relative to the position of the blade on the tool holder, the blade on the tool shaft, or the blade on another tool holder that works with the tool holder. In other embodiments, the position offset of the tool holder refers to a shift in the position of the tool holder relative to its initial position, which can also be considered as the position of the tool holder when it is not in use.

[0047] However, the solutions in related technologies that adjust the position of the blade holder in the slitting device based on experience often do not know when to adjust the position of the blade holder, resulting in insufficient rationality of the blade holder position. This leads to problems such as burrs and uneven edges when slitting materials such as large sheets of electrode material, which seriously affects the slitting quality. In addition, related technologies also have the problems of slow blade holder adjustment efficiency and high requirements for manual skill level.

[0048] To alleviate the aforementioned problems, research revealed that a large fluctuation in the feedback torque set of the current feedback torque set during material cutting indicates a misalignment of the blade holder within the slitting device, leading to low cutting quality. Therefore, adjusting the blade holder position reduces the need for adjustments when no misalignment has occurred, improving the rationality of blade holder position adjustments and ultimately enhancing the cutting quality. Furthermore, adjusting the blade holder position based on its adjustment priority in multiple directions prioritizes adjustments that affect the feedback torque. The direction of the largest torque fluctuation is used to adjust the position of the blade holder in the slitting device. This significantly reduces the feedback torque fluctuation of the current feedback torque set when slitting materials by reducing the number of blade holder position adjustments. This helps the slitting device quickly reach the required torque threshold when slitting materials, improving the efficiency of blade holder position adjustment. In this embodiment, the controller controls the adjustment of the blade holder position, eliminating the need for operators to make fine adjustments to the blade holder position in the slitting device. This reduces reliance on highly skilled operators and further improves the efficiency of blade holder position adjustment.

[0049] Based on the above considerations, this application provides a method for adjusting the position of the blade holder in a slitting device. When the feedback torque fluctuation of the current feedback torque set during material slitting is greater than a first torque threshold, the adjustment priority order of the blade holder in the slitting device 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 the set of feedback torques where the feedback torque fluctuation during material 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 blade holder position is adjusted according to the adjustment priority order in multiple directions. By employing the above method, when the fluctuation of the feedback torque in the current feedback torque set during material cutting by the slitting device exceeds the first torque threshold, it indicates that the offset of the blade holder in the slitting device leads to low cutting quality. Therefore, the position of the blade holder in the slitting device is adjusted, reducing the phenomenon of adjusting the blade holder when there is no offset. This improves the rationality of blade holder position adjustment and thus enhances the cutting quality. Furthermore, by adjusting the blade holder position according to the adjustment priority order in multiple directions, the system can prioritize adjustments based on the feedback torque. The direction of the largest torque fluctuation is used to adjust the position of the blade holder in the slitting device. This significantly reduces the feedback torque fluctuation of the current feedback torque set when slitting materials by reducing the number of blade holder position adjustments. This helps the slitting device quickly reach the required torque threshold when slitting materials, improving the efficiency of blade holder position adjustment. In this embodiment, the controller controls the adjustment of the blade holder position, eliminating the need for operators to make fine adjustments to the blade holder position in the slitting device. This reduces reliance on highly skilled operators and further improves the efficiency of blade holder position adjustment.

[0050] The following explains some implementation methods of the slitting device:

[0051] In some embodiments, the slitting device may include a main body and a cutter shaft and a cutter holder connected to the main body. The cutter shaft has a first blade, and the cutter holder has a second blade. The first and second blades rotate in opposite directions at the same speed, so that when material arrives, the material is slid by the cooperation of the first and second blades. Exemplarily, the cutter shaft may be a lower cutter shaft, and the cutter holder may be an upper cutter holder. As another example, the cutter shaft may be an upper cutter shaft, and the cutter holder may be a lower cutter holder.

[0052] In other embodiments, the slitting device may include a main body and two blade holders (a first blade holder and a second blade holder) connected to the main body. The first blade holder is provided with a first blade, and the second blade holder is provided with a second blade. The first blade and the second blade rotate in opposite directions at the same speed so that when the material arrives, the material is slit by the cooperation of the first blade and the second blade.

[0053] In this embodiment, the tool holder can be any of the tool holders listed in the above embodiments.

[0054] The materials used in this application embodiment can be any materials that need to be cut. For example, the materials may include large electrode sheets. Large electrode sheets refer to master sheets or large rolls of material that have been coated and rolled (compacted) during the battery electrode manufacturing process, but have not yet been cut into the size required for a single battery. As another example, the materials may include packaging film materials, paper materials, metal materials, textile materials, or composite materials, etc.

[0055] Unless otherwise specified, the methods in any embodiment of this application can be applied to a computer device or 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 blade 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, a host computer, a central control device, equipment in a slitting station in a production setting, a server, a mobile phone, a tablet computer, a computer with transceiver capabilities, a handheld computer, a desktop computer, a personal digital assistant, a portable media player, a smart speaker, a navigation device, a smartwatch, smart glasses, a smart necklace and other wearable devices, a pedometer, a digital TV, a virtual reality (VR) device, an augmented reality (AR) device, equipment in industrial control, etc.

[0056] Figure 1 This is a flowchart illustrating the method for adjusting the blade holder position in a slitting apparatus provided in some embodiments, such as... Figure 1 As shown, the method includes the following steps:

[0057] S101. 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, the adjustment priority order of the blade 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 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.

[0058] In some embodiments, before S101, the following steps may be included: obtaining the current feedback torque set of the slitting device when slitting materials, and obtaining the initial feedback torque set of the slitting device when slitting materials; determining the feedback torque fluctuation of the current feedback torque set, and determining the feedback torque fluctuation of the initial feedback torque set.

[0059] Feedback torque is the actual torque value generated / borne, collected and transmitted back by a torque detection element (such as a torque sensor, servo motor encoder, etc.). For example, the torque detection element can be set on the motor shaft used to drive the rotation of the blade in the tool holder, or the torque detection element can be set on the tool shaft connected to the blade in the tool holder.

[0060] The feedback torque set in this application embodiment may include: a set of feedback torques collected when the same slitting speed is used for materials with the same properties. The feedback torque set may be a set of feedback torques at various time points within a preset time period. The properties of the material may include at least one of the following: material, thickness, hardness, etc. Exemplarily, in this application embodiment, the method in this application embodiment can be used to adjust the blade holder position when the slitting device slits materials with each property and uses each slitting speed.

[0061] In the embodiments of this application, the feedback torque fluctuation of the feedback torque set may 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 obtained after the initial feedback torque set. The following describes the scenario for obtaining the initial feedback torque set in this embodiment: After the slitting device is installed, the tool holder can be moved empirically to adjust its position until the feedback torque fluctuation of the detected feedback torque set is less than or equal to a second torque threshold. This detected feedback torque set is then determined as the initial feedback torque set. In some embodiments, upon determining the initial feedback torque set, the current position of the tool holder can be determined as its initial position. With the tool holder in its initial position, since the feedback torque fluctuation of the initial feedback torque set is less than or equal to the second torque threshold, the tool holder's position is reasonable, and the slitting quality of the material being cut by the slitting device is acceptable. Subsequently, during the slitting process of the material by the slitting device, the current feedback torque set will be continuously detected. During the use of the slitting device, factors such as wear or loosening of transmission components, deformation of parts, and load impact can cause the position of the blade holder in the slitting device to shift. In such a precision instrument as the slitting device, the shift in the position of the blade holder is very small and not easy to detect. However, the shift in the position of the blade holder can cause problems such as burrs and uneven edges when the slitting device cuts materials such as large sheets of electrodes. In other words, the slitting quality of the material is unqualified. The unqualified material slitting can be reflected by the fact that the fluctuation of the feedback torque in the current feedback torque set is greater than the first torque threshold.

[0063] In some embodiments, the torque threshold (e.g., any one of the first to fourth torque thresholds herein) may be a fixed threshold. In other embodiments, the torque threshold may be flexibly determined based on at least one of the following: the required quality requirements of the material to be slit, the properties of the material to be slit, etc.

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

[0065] In some embodiments, determining the adjustment priority order of the cutter head in multiple directions based on the current feedback torque set and a preset initial feedback torque set may include: acquiring 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 cutter head in multiple directions based on the time difference between the first acquisition time and the second acquisition time. For example, a correspondence between duration and adjustment priority order may be acquired, and the adjustment priority order of the cutter head in multiple directions may be determined based on the correspondence and the time difference.

[0066] S102. Adjust the position of the tool holder according to the priority order of adjustment in multiple directions.

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

[0068] For example, based on the adjustment priority order of the cutter holder in multiple directions, the direction that is not adjusted and has the highest priority (hereinafter referred to as the target direction) can be obtained. The target direction includes two directions: positive and negative. A preset movement step can be controlled to move in the positive direction of the target direction. It is detected whether the feedback torque fluctuation of the feedback torque set after the cutter holder moves (i.e., the feedback torque set of the slitting device when cutting materials after the cutter holder moves) decreases. The following will explain the decrease or increase from the two aspects:

[0069] If the movement direction is accurate, it indicates that the feedback torque fluctuation of the feedback torque set after the tool holder moves is less than or equal to the fourth torque threshold. If it is, it indicates that the tool holder position is reasonable and meets the slitting quality requirements, and the tool holder position adjustment is completed. If it is not, continue to move the tool holder in the positive direction of the target direction by a preset movement step until the feedback torque fluctuation of the feedback torque set after the tool holder moves is less than or equal to the fourth torque threshold, and the tool holder position adjustment is completed. Alternatively, until the feedback torque fluctuation of the feedback torque set after the tool holder moves starts to increase again, control the tool holder to move the tool holder in the opposite direction of the target direction by a preset movement step, and return to the execution. Based on the adjustment priority order of the tool holder in multiple directions, obtain the direction that has not been adjusted and has the highest priority, until the last direction is adjusted.

[0070] If the position increases, it indicates the movement direction is inaccurate. In this case, the tool holder is moved a preset step in the opposite direction to the target direction, returning to its original position where it did not move in the target direction. Then, it is moved another preset step in the opposite direction to the target direction, causing the tool holder to move in the opposite direction from its original position. The system checks whether the feedback torque fluctuation of the feedback torque set after the tool holder movement has decreased. If the position remains increased, it indicates no movement is needed in the target direction. In this case, the tool holder is moved a preset step in the forward direction of the target direction, and the process returns to the previous step. Based on the adjustment priority order of the tool holder in multiple directions, the direction with the highest priority and no adjustment is selected. If the position decreases, it indicates the movement direction is accurate. The system then determines the feedback torque set after the tool holder movement. If the feedback torque fluctuation of the combined set is less than or equal to the fourth torque threshold, it indicates that the tool holder position is reasonable and meets the slitting quality requirements, and the tool holder position adjustment is determined to be complete. If it is not satisfied, continue to move the tool holder in the opposite direction of the target direction by a preset moving step until the feedback torque fluctuation of the feedback torque set after the tool holder movement is less than or equal to the fourth torque threshold, and the tool holder position adjustment is determined to be complete. Alternatively, if the feedback torque fluctuation of the feedback torque set after the tool holder movement starts to increase again, control the tool holder to move the tool holder in the positive direction of the target direction by a preset moving step, and return to the execution. Based on the adjustment priority order of the tool holder in multiple directions, obtain the direction that has not been adjusted and has the highest priority, until the last direction is adjusted.

[0071] For example, if the feedback torque fluctuation of the feedback torque set after the tool holder moves is less than or equal to the fourth torque threshold after the last directional adjustment is completed, it is determined that the tool holder position adjustment is completed; if the feedback torque fluctuation of the feedback torque set after the tool holder moves still does not meet the requirement of being less than or equal to the fourth torque threshold, it is determined that the tool holder position is not a factor causing the low slitting quality of the slitting device, and an instruction to replace the blade in the slitting device can be output.

[0072] In the technical solution provided in this application embodiment, when the feedback torque fluctuation of the current feedback torque set of the slitting device during material slitting is greater than the first torque threshold, it indicates that the offset of the blade holder in the slitting device will lead to low slitting quality when the slitting device slits the material. Therefore, the position of the blade holder in the slitting device is adjusted, reducing the phenomenon of adjusting the blade holder when there is no offset. This improves the rationality of the blade holder position adjustment in the slitting device, thereby improving the slitting quality of the slitting device. Furthermore, the blade holder position is adjusted according to the adjustment priority order of the blade holder in multiple directions, thereby prioritizing the adjustment of the blade holder in multiple directions. The direction that has the greatest impact on the feedback torque fluctuation is used to adjust the position of the blade holder in the slitting device. This significantly reduces the feedback torque fluctuation of the current feedback torque set when the slitting device is cutting materials by adjusting the blade holder position fewer times. This helps the feedback torque fluctuation of the slitting device to quickly reach the required torque threshold when cutting materials, improving the efficiency of blade holder position adjustment. In this embodiment, the controller controls the adjustment of the blade holder position, eliminating the need for operators to make fine adjustments to the blade holder position in the slitting device. This reduces reliance on highly skilled operators and further improves the efficiency of blade holder position adjustment.

[0073] In some embodiments, determining the adjustment priority order of the tool holder in multiple directions in the slitting device based on the current feedback torque set and a preset initial feedback torque set includes: determining the tool holder position adjustment amount based on the current feedback torque set and the preset initial feedback torque set; and determining the adjustment priority order of the tool holder in multiple directions based on the tool holder position adjustment amount.

[0074] For example, the tool holder position adjustment amount can include the adjustment amount in each of multiple directions. For instance, the tool holder position adjustment amount can be (x, y, z), where x, y, and z are all real numbers, and (x, y, z) represent the distances moved laterally, longitudinally, and vertically, respectively. Positive values ​​represent movement in the positive direction, and negative values ​​represent movement in the opposite direction.

[0075] In some implementations, determining the tool holder position adjustment amount based on the current feedback torque set and a preset initial feedback torque set may include: determining the similarity of the current feedback torque based on the current feedback torque set and the preset initial feedback torque set; obtaining a specified mapping relationship between the position offset and the feedback torque similarity; and determining the tool holder position adjustment amount in the slitting device based on the current feedback torque similarity and the specified mapping relationship. For example, the current feedback torque similarity may be the similarity between the current feedback torque set and the preset initial feedback torque set.

[0076] In other embodiments, determining the tool holder position adjustment amount based on the current feedback torque set and a preset initial feedback torque set may include: obtaining the feature values ​​of the current feedback torque set and the feature values ​​of the initial feedback torque set; obtaining a set mapping relationship between the position offset and the feature difference; and determining the tool holder position adjustment amount in the slitting device based on the set mapping relationship and the difference between the feature values ​​of the current feedback torque set and the feature values ​​of the initial feedback torque set. For example, the feature values ​​may include any one of the following: mean, maximum value, median, variance, and standard deviation.

[0077] In some embodiments, determining the adjustment priority order of the tool holder in multiple directions based on the tool holder position adjustment amount may include: determining the adjustment priority order of the tool holder in multiple directions based on the ranking of the absolute values ​​of the adjustment amounts in multiple directions (one adjustment amount in each direction). For example, the ranking of the multiple adjustment amounts from largest to smallest corresponding to the ranking of the multiple directions can be determined as the high-to-low adjustment priority order of the tool holder in multiple directions. For example, if the tool holder position adjustment amount is (0.9 mm, 0.1 mm, -0.5 mm), then the high-to-low adjustment priority order of the tool holder in multiple directions is horizontal, vertical, and longitudinal.

[0078] In the technical solution provided in this application embodiment, the tool holder position adjustment amount is determined based on the current feedback torque set and the preset initial feedback torque set. This allows the tool holder position adjustment amount to accurately match the real-time changes in load during slitting, improving the accuracy of the determined tool holder position adjustment amount. Furthermore, based on the tool holder position adjustment amount, the adjustment priority order of the tool holder in multiple directions is determined. This enables the automatic and accurate identification of the adjustment direction most critical for compensating the current tool holder attitude deviation, avoiding the blindness in determining the adjustment priority order and improving the reliability of the determined adjustment priority order.

[0079] Figure 2 A flowchart illustrating a method for determining a tool holder position adjustment amount based on a current set of feedback torques and a preset set of initial feedback torques, provided in some embodiments, is shown below. The method includes the following steps:

[0080] S201. Determine the degree of difference in the current feedback torque based on the current feedback torque set and the preset initial feedback torque set.

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

[0082] For example, taking the current feedback torque difference degree, including the current feedback torque Euclidean distance, as an example, the current feedback torque Euclidean distance can be the Euclidean distance between the current feedback torque set and the preset initial feedback torque set.

[0083] S202. Obtain the target mapping relationship between the tool holder position offset and the degree of difference in feedback torque.

[0084] For example, the target mapping relationship can be pre-set or obtained based on testing of the slitting device.

[0085] In some embodiments, the tool holder position offset may include multiple offsets, the feedback torque difference degree may include multiple difference degrees, the multiple offsets correspond one-to-one with the multiple difference degrees, and the multiple offsets and their one-to-one correspondence with the multiple difference degrees are determined as the target mapping relationship.

[0086] In other embodiments, the target mapping relationship can be a function of the tool holder position offset and the degree of difference in feedback torque.

[0087] S203. Determine the tool holder position adjustment amount based on the current feedback torque difference and target mapping relationship.

[0088] In some embodiments, when multiple offsets are determined as a target mapping relationship with their corresponding multiple degree of difference, the degree of difference with the current feedback torque is determined as the target degree of difference among the multiple degree of difference; the offset corresponding to the target degree of difference is determined as the tool holder position adjustment amount.

[0089] In other embodiments, where the target mapping relationship can be a function of the tool holder position offset and the degree of feedback torque difference, the current degree of feedback torque difference is substituted into the target mapping relationship to obtain the tool holder position adjustment amount.

[0090] In the technical solution provided in this application embodiment, the difference between the current feedback torque set and the preset initial torque set is first calculated, and then a pre-established target mapping relationship that accurately describes the quantitative relationship between the tool holder position offset and the difference between the feedback torque is called. Finally, the tool holder position adjustment amount is determined, thereby realizing the accurate conversion from torque to position by using the target mapping relationship. Since the target mapping relationship is a fixed mapping relationship, it has strong anti-disturbance and repeatability consistency, thereby improving the accuracy of the determined tool holder position adjustment amount.

[0091] The following are some examples illustrating the target mapping relationship between obtaining the tool holder position offset and the degree of difference in feedback torque:

[0092] In some embodiments, obtaining the target mapping relationship between the tool holder position offset and the degree of difference in feedback torque includes: determining the test feedback torque set when the tool holder cuts materials under different combinations of position offsets according to the preset movement step of the tool holder; the position offset combination is the offset of the tool holder relative to the initial position in multiple directions, 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 combination of position offsets and the corresponding test feedback torque set.

[0093] This application embodiment may include multiple position offset combinations. For example, determining multiple position offset combinations can be achieved by: determining the maximum offset in the positive and negative directions of each of the multiple directions; and determining the multiple position offset combinations based on the tool holder position offset and the maximum offset in the positive and negative directions of each of the multiple directions. For example, if the tool holder position offset is 0.1, the maximum offsets in the reverse and forward directions in the lateral direction are 0.1 mm and 0.1 mm respectively, the maximum offsets in the reverse and forward directions in the longitudinal direction are 0.1 mm and 0.2 mm respectively, and the maximum offsets in the reverse and forward directions in the vertical direction are 0.1 mm and 0.1 mm respectively, then the combination of multiple position offsets 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, -0.1), (-0.1, 0, 0), (-0.1, 0, 0), (-0.1, 0, 0.1), (-0.1, 0.1, 0), (-0.1, 0.1, 0.1), (-0.1, 0.2, -0.1), (-0.1, 0.2, 0 ...1, 0), (-0.1, 0.2, 0), (-0.1, 0.1, .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 may include (0, 0, 0).

[0094] In some embodiments, the mapping relationship between the combination of position offsets and the corresponding sets of test feedback torques can be determined as the target mapping relationship.

[0095] In the technical solution provided in this application embodiment, by obtaining the offset combination of different positions traversing multiple directions according to the preset movement step size, the test feedback torque set when actually cutting materials under each position offset combination is determined, and the target mapping relationship is determined accordingly. Thus, the determination of the target mapping relationship comes from the actual measurement of the real cutting working condition, and the different position offset combinations cover the expected range and direction of change. The target mapping relationship is not obtained by inference or estimation, but is determined based on dense and reliable measured data points, which improves the accuracy of the determined target mapping relationship.

[0096] In some embodiments, determining the set of test feedback torques for cutting materials under different combinations of offsets of the cutter holder according to a preset moving step length of the cutter holder includes: obtaining a specified set of feedback torques for the cutting device when cutting materials, each time the cutter holder is moved by a preset moving step length in each direction; if the feedback torque fluctuation of the specified set of feedback torques is greater than a third torque threshold, determining the offset range of the cutter holder in each direction based on the number of times the cutter holder moves in each direction; the third torque threshold is greater than or equal to a first torque threshold; and determining the set of test feedback torques for cutting materials under different combinations of offsets of the cutter holder according to the offset range of the cutter holder in each direction.

[0097] In some implementations, movement in each direction may include movement in the forward direction and movement in the reverse direction. Correspondingly, the offset range of the tool holder in each direction is determined based on the number of times the tool holder moves in the forward direction and the number of times it moves in the reverse direction.

[0098] For example, using the initial position of the cutter holder as a reference, in each positive direction, the cutter holder is moved by a preset movement step, and a specified set of feedback torques is obtained when the slitting device is cutting materials. If the feedback torque fluctuation of the specified set of feedback torques is greater than a third torque threshold, the maximum offset of the cutter holder in each positive direction is determined based on the number of times the cutter holder moves in each positive direction. Then, using the initial position of the cutter holder as a reference, in each negative direction, the cutter holder is moved by a preset movement step, and a specified set of feedback torques is obtained when the slitting device is cutting materials. If the feedback torque fluctuation of the specified set of feedback torques is greater than a third torque threshold, the maximum offset of the cutter holder in each negative direction is determined based on the number of times the cutter holder moves in each negative direction. The range between the maximum offset in each negative direction and the maximum offset in each positive direction is determined as the offset range of the cutter holder in each direction.

[0099] In some embodiments, the offset range of the tool holder in each direction can be determined based on the number of movements of the tool holder in the forward direction and the number of movements in the reverse direction, as well as based on a preset movement step size. In other embodiments, the offset range of the tool holder in each direction can be determined as the range of movements between the number of movements in the reverse direction and the number of movements in the forward direction.

[0100] In some embodiments, different combinations of multiple position offsets can be determined based on a preset movement step size and the offset range of the tool holder in each direction.

[0101] In the technical solution provided in this application embodiment, after the cutter holder moves by a preset moving step each time, the feedback torque fluctuation of the feedback torque set when the cutting device cuts the material is determined and compared with a higher third torque threshold. This allows for the objective determination of the effective offset range of the cutter holder in each direction, avoiding the situation of obtaining the test feedback torque set within an invalid offset range. This improves the effectiveness and efficiency of the determined test feedback torque set when the cutter holder cuts the material under different offset combinations.

[0102] In some embodiments, determining the set of test feedback torques for cutting materials under different combinations of offsets of the tool holder in each direction, based on the offset range of the tool holder in each direction, includes: determining each combination of offsets of each position based on the offset range of the tool holder in each direction; and determining the specified set of feedback torques for cutting materials under each combination of offsets of the tool holder as each set of test feedback torques.

[0103] In the technical solution provided by the embodiments of this application, the offset combination of each position is determined according to the offset range of the tool holder in each direction, so that multiple different offset combinations of the tool holder can be objectively determined, and the set of feedback torque under the different offset combinations can be determined, instead of determining the set of feedback torque under other offset combinations, thereby improving the effectiveness and efficiency of the determined set of test feedback torque.

[0104] The following describes some implementation methods for determining the target mapping relationship based on the combination of position offsets and the corresponding sets of test feedback torques: The degree of difference between each test feedback torque is determined based on the initial set of feedback torques and the sets of test feedback torques; the rate of change of the degree of difference of each test feedback torque in each direction is determined based on the combination of position offsets and the corresponding sets of test feedback torques; the target mapping relationship is determined based on the degree of difference of each test feedback torque and the rate of change of the degree of difference of each test feedback torque in each direction.

[0105] For example, the degree of difference between the test feedback torques can be the degree of difference between the initial set of feedback torques and the sets of test feedback torques.

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

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

[0108] In the technical solution provided in this application embodiment, the target mapping relationship is determined not only based on the degree of difference of each test feedback torque, but also based on the gradient of the change of each test feedback torque degree along each direction. The degree of difference of each test feedback torque reflects the correspondence between the degree of difference of feedback torque and the combination of position offset, while the gradient of the change of each test feedback torque degree along each direction can quantify the sensitivity and trend of the degree of difference of feedback torque to position offset. This makes the constructed target mapping relationship have stronger nonlinear fitting ability and spatial prediction accuracy, and improves the effectiveness of the determined target mapping relationship.

[0109] The following describes an implementation method for adjusting the tool holder position based on the priority order of adjustment 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] For example, based on the adjustment priority order of the tool holder in multiple directions, the direction with the highest priority that has not been adjusted (hereinafter referred to as the target direction) can be obtained; the adjustment amount in the target direction can be determined from the tool holder position adjustment amount, and the tool holder position can be adjusted according to the adjustment amount in the target direction; it can be detected whether the feedback torque fluctuation amount of the feedback torque set after the tool holder is moved meets the requirement of being less than or equal to the fourth torque threshold. If it meets the requirement, it can be determined that the tool holder position adjustment is completed. If it does not meet the requirement, the process can be returned to obtain the direction with the highest priority that has not been adjusted according to the adjustment priority order of the tool holder in multiple directions, until the last direction is adjusted.

[0112] For example, if the feedback torque fluctuation of the feedback torque set after the tool holder has moved is less than or equal to the fourth torque threshold after the last directional adjustment is completed, the tool holder position adjustment is determined to be complete.

[0113] For example, if the feedback torque fluctuation of the feedback torque set after the tool holder has moved still does not meet the requirement of being less than or equal to the fourth torque threshold after the last directional adjustment is completed, the position of the tool holder can be finely adjusted.

[0114] For example, if the feedback torque fluctuation of the feedback torque set after the last directional adjustment is completed still does not meet the requirement of being less than or equal to the fourth torque threshold, then an instruction to replace the blade in the slitting device can be output.

[0115] In the technical solution provided in this application embodiment, the action of adjusting the position of the tool holder is not performed independently or randomly in each direction, but strictly follows the priority order of the tool holder adjustment in multiple directions. This allows the tool holder to be driven to move the corresponding adjustment amount in the direction that contributes the most to the difference in feedback torque. This not only helps to reduce the number of times the tool holder position is adjusted, but also reduces mechanical wear and improves the effectiveness of adjusting the tool holder position.

[0116] Figure 3 The flowchart illustrates a method for adjusting the tool holder position based on the tool holder position adjustment amount and the adjustment priority order of the tool holder in multiple directions, as provided in some embodiments. Figure 3 As shown, the method includes the following steps:

[0117] S301. After the tool holder position is adjusted by the tool holder position adjustment amount, obtain the target feedback torque set of the slitting device when slitting materials.

[0118] For example, the tool holder position can be adjusted according to the priority order of adjustment in multiple directions and the amount of adjustment. Alternatively, the tool holder position can be adjusted according to any directional adjustment sequence.

[0119] For example, if 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 lateral positive direction, 0.3 mm in the longitudinal negative direction, and 0.2 mm in the vertical positive direction. This means that the tool holder position is adjusted using the tool holder position adjustment amount.

[0120] S302. If the feedback torque fluctuation of the target feedback torque set is less than or equal to the fourth torque threshold, determine that the tool holder position adjustment is complete; the fourth torque threshold is less than the first torque threshold and greater than or equal to the second torque threshold.

[0121] For example, if the feedback torque fluctuation of the target feedback torque set is less than or equal to the fourth torque threshold, it indicates that the tool holder position is reasonable and meets the slitting quality requirements, and the tool holder position adjustment is determined to be complete.

[0122] S303. When the feedback torque fluctuation of the target feedback torque set is greater than the fourth torque threshold, the tool holder position is adjusted again according to the adjustment priority order of the tool holder in multiple directions and the preset movement step size of the tool holder.

[0123] In the technical solution provided in this application embodiment, considering that as the usage time of the slitting device increases, the position of the blade on the cutter shaft may change, and the blade may also wear, causing the position of the cutter holder to change when the feedback torque fluctuation of the slitting device is less than or equal to the second torque threshold, the position of the cutter holder is adjusted according to the adjustment priority order of the cutter holder in multiple directions and the preset movement step size of the cutter holder when the feedback torque fluctuation of the target feedback torque set is greater than the fourth torque threshold, instead of outputting the instruction information to replace the blade in the slitting device, thereby reducing the replacement frequency of the blade in the slitting device and reducing the consumption of the blade in the slitting device.

[0124] In some embodiments, 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, including: according to the adjustment priority order, after each adjustment of the tool holder position using the preset movement step size is completed, obtaining the set of set feedback torques of the slitting device when slitting materials; and determining that the tool holder position adjustment is completed when the feedback torque fluctuation of the set of set feedback torques is less than or equal to a fourth torque threshold.

[0125] For example, the implementation method of continuing to adjust the position of the tool holder according to the adjustment priority order of the tool holder in multiple directions and the preset movement step size of the tool holder can refer to the description of the implementation method of adjusting the position of the tool holder according to the preset movement step size and the adjustment priority order of the tool holder in multiple directions in the above embodiment, and will not be repeated here.

[0126] In the technical solution provided in this application embodiment, the tool holder is gradually moved by adjusting the priority order and the preset movement step size. After each step adjustment is completed, the obtained set of set feedback torque is evaluated, thereby minimizing the number of times the tool holder position is adjusted, thereby reducing the number of adjustment actions and time, and improving the efficiency of tool holder position adjustment.

[0127] In some embodiments, the method further includes: when the feedback torque fluctuation of the set feedback torque set is greater than a fourth torque threshold, outputting indication information for 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 the degree of difference of the current feedback torque based on the current feedback torque set and the preset initial feedback torque set; obtain the target mapping relationship between the tool holder position offset and the degree of difference of feedback torque; and determine the tool holder position adjustment amount based on the current degree of difference of feedback torque and the target mapping relationship.

[0135] In some embodiments, the adjustment amount determination unit is further configured to determine the test feedback torque set when the cutter holder cuts materials under different combinations of position offsets, based on the preset movement step length of the cutter holder; the position offset combination is the offset of the cutter holder relative to the initial position in multiple directions, and the initial position is the position of the cutting device under the initial feedback torque set; and determine the target mapping relationship based on each combination of position offsets and the corresponding test feedback torque set.

[0136] In some embodiments, the adjustment amount determination unit is further configured to: acquire a specified set of feedback torques when the slitting device is cutting materials, each time the tool holder is moved by a preset movement step in each direction; if the feedback torque fluctuation of the specified set of feedback torques is greater than a third torque threshold, determine the offset range of the tool holder in each direction based on the number of times the tool holder moves in each direction; the third torque threshold is greater than or equal to a first torque threshold; and determine the set of test feedback torques when the tool holder is cutting materials under different combinations of offsets in each position, based on the offset range of the tool holder in each direction.

[0137] In some embodiments, the adjustment amount determination unit is further configured to determine the combination of offset amounts at each position based on the offset range of the tool holder in each direction; and to determine the set of specified feedback torques when the tool holder cuts materials under each set of offset amounts at each position as each set of test feedback torques.

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

[0139] In some embodiments, the adjustment module 402 is further configured to adjust the tool holder position according to the tool holder position adjustment amount and the adjustment priority order of the tool holder in multiple 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 may further include a drive motor, in Figure 5 The diagram shows a drive motor including a motor 551 for controlling lateral movement and a motor 552 for controlling vertical movement. In other embodiments, the drive motor includes a motor 551 for controlling lateral movement, a motor 552 for controlling vertical movement, and a motor for controlling longitudinal movement. The controller 51 is connected to the tool holder 53 via the motion drive motor, and the controller 51 is used to control the movement of the tool holder 53 by controlling the operation of the motion drive motor.

[0147] In some embodiments, the slitting device 50 may further include a first rotary motor ( Figure 5 (not shown in the image) and second rotary motor ( Figure 5 (Not shown in the image) Controller 51 is connected to the first blade via a first rotary motor and to the second blade via a second rotary motor. Controller 51 is used to drive the first blade to rotate by driving the rotation of the first rotary motor and to drive the second blade to rotate by driving the rotation of the second rotary motor.

[0148] In one exemplary embodiment, Figure 6 This is a schematic diagram of the structure of a computer device provided in some embodiments. The computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor of the computer device provides computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The input / output interface of the computer device is used for exchanging information between the processor and external devices. The communication interface of the computer device is used for wired or wireless communication with external terminals. Wireless communication can be implemented through Wireless Fidelity (WIFI), mobile cellular networks, Near Field Communication (NFC), or other technologies. When the computer program is executed by the processor, it implements a method for adjusting the position of the cutting tool holder in a slitting device. The display unit of the computer device is used to form a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0149] Those skilled in the art will understand that Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0150] For example, a computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps of the method of any of the above embodiments.

[0151] In one embodiment, a computer-readable storage medium is provided, wherein a computer program, when executed by a processor, implements the steps of the method provided in any of the above embodiments. For example, when the computer program is executed by the processor, it implements: when the feedback torque fluctuation of the current feedback torque set of the slitting device during material slitting is greater than a first torque threshold, determining the adjustment priority order of the blade holder in the slitting device in multiple directions based on the current feedback torque set and a preset initial feedback torque set; wherein the initial feedback torque set is a set of feedback torques in which the feedback torque fluctuation of the slitting device during material 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; and adjusting the position of the blade holder according to the adjustment priority order of the blade holder in multiple directions.

[0152] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of the method provided in any of the above embodiments. For example, when the computer program is executed by the processor, it implements the following: when the feedback torque fluctuation of the current feedback torque set of the slitting device during material slitting is greater than a first torque threshold, determining the adjustment priority order of the blade holder in the slitting device in multiple directions based on the current feedback torque set and a preset initial feedback torque set; wherein, the initial feedback torque set is a set of feedback torques in which the feedback torque fluctuation of the slitting device during material 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; and adjusting the position of the blade holder according to the adjustment priority order of the blade holder in multiple directions.

[0153] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented 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 embodiments of the methods described above.

[0154] The processor, functional modules, or functional units in any embodiment of this application may include an integration of 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), an embedded neural network processing unit (NPU), a controller, a microcontroller, a microprocessor, a programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, a quantum computing-based data processing logic unit, an artificial intelligence (AI) processor, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0155] The memory or computer-readable storage medium in any embodiment of this application may include at least one of non-volatile memory and volatile memory. 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 Surface Memory, Optical Disc, Compact Disc Read-Only Memory (CD-ROM), Magnetic Tape, Floppy Disk, Flash Memory, Optical Memory, High-Density Embedded Non-Volatile Memory, Resistive Random Access Memory (ReRAM), Magnetoresistive Random Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), and Phase Change Memory. Memory (PCM), graphene memory, volatile memory, etc. Volatile memory includes the integration of any one or more of the following: Random Access Memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), etc.

[0156] The acquisition, transmission, storage, use, and processing of data in this application comply with relevant national laws and regulations. It should be noted that existing industry solutions such as software, components, and models may be mentioned in the embodiments of this application. These should be considered exemplary, intended only to illustrate the feasibility of implementing the technical solution of this application, and do not imply that the applicant has already used or necessarily used such a solution. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this application.

[0157] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for adjusting the position of the blade holder in a slitting device, characterized in that, The method includes: If the fluctuation of the feedback torque in the current feedback torque set of the slitting device when slitting materials is greater than the first torque threshold, the adjustment amount of the blade holder position in the slitting device is determined according to the current feedback torque set and the preset initial feedback torque set. Based on the adjustment amount of the tool holder position, the adjustment priority order of the tool holder in multiple directions is determined; wherein, the initial feedback torque set is the set of feedback torques 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; If the tool holder position adjustment is completed using the tool holder position adjustment amount, and the feedback torque fluctuation of the target feedback torque set when the cutting device is cutting the material is less than or equal to the fourth torque threshold, then the tool holder position adjustment is determined to be complete. If the feedback torque fluctuation of the target feedback torque set is greater than the fourth torque threshold, then the tool holder position is adjusted further according to the adjustment priority order of the tool holder in multiple directions and the preset movement step size of the tool holder. The fourth torque threshold is less than the first torque threshold and greater than or equal to the second torque threshold.

2. The method according to claim 1, characterized in that, The feedback torque fluctuation of the feedback torque set includes the difference between the maximum and minimum feedback torque in the feedback torque set.

3. The method according to claim 1, characterized in that, The step of determining the tool holder position adjustment amount in the slitting device based on the current feedback torque set and the preset initial feedback torque set includes: The degree of difference in current feedback torque is determined based on the current feedback torque set and the preset initial feedback torque set; Obtain the target mapping relationship between the tool holder position offset and the degree of difference in feedback torque; The tool holder position adjustment amount is determined based on the current feedback torque difference and the target mapping relationship.

4. The method according to claim 3, characterized in that, The target mapping relationship between the tool holder position offset and the degree of difference in feedback torque includes: Based on the preset moving step length of the blade holder, the test feedback torque set is determined when the blade holder cuts materials under different combinations of position offsets; the position offset combination is the offset of the blade holder relative to the initial position in multiple directions, and the initial position is the position of the cutting device under the initial feedback torque set; The target mapping relationship is determined based on the combination of offsets at each position and the corresponding sets of test feedback torques.

5. The method according to claim 4, characterized in that, The step of determining the set of test feedback torques for cutting materials under different combinations of offset positions of the cutter holder, based on the preset movement step size of the cutter holder, includes: In each of the aforementioned directions, each time the blade holder is moved by the preset moving step length, a set of specified feedback torques of the slitting device when slitting materials is obtained. If the feedback torque fluctuation of the specified feedback torque set is greater than the third torque threshold, the offset range of the tool holder in each of the directions is determined based on the number of times the tool holder moves in each of the directions; the third torque threshold is greater than or equal to the first torque threshold. Based on the offset range of the tool holder in each of the aforementioned directions, determine the set of test feedback torques when the tool holder cuts materials under different combinations of offset positions.

6. The method according to claim 5, characterized in that, The step of determining the set of test feedback torques for cutting materials under different combinations of offsets of the cutter holder in each of the aforementioned directions, based on the offset range of the cutter holder in each of the aforementioned directions, includes: The combination of offsets at each position is determined based on the offset range of the tool holder in each of the directions; The set of specified feedback torques when the cutter head cuts materials under each combination of offsets at the specified positions is determined as each set of test feedback torques.

7. The method according to claim 4, characterized in that, The step of determining the target mapping relationship based on the combination of offsets at each position and the corresponding sets of test feedback torques includes: The degree of difference between the test feedback torques is determined based on the initial feedback torque set and the test feedback torque sets. Based on the combination of offsets at each position and the corresponding degree of difference in the test feedback torque, the rate of change of the degree of difference in the test feedback torque in each direction is determined; The target mapping relationship is determined based on the degree of difference in the test feedback torque and the rate of change of the degree of difference in the test feedback torque in each of the said directions.

8. The method according to any one of claims 1-7, characterized in that, The current feedback torque set is obtained after the initial feedback torque set.

9. The method according to any one of claims 1-7, characterized in that, The step of continuing to adjust the position of the tool holder according to the adjustment priority order of the tool holder in multiple directions and the preset movement step size of the tool holder includes: According to the adjustment priority order, the target direction that is not adjusted and has the highest priority is obtained, and the blade holder is controlled to move in the target direction according to the preset movement step. When the position of the blade holder is adjusted in the target direction each time using the preset movement step, the set of set feedback torque of the cutting device when cutting materials is obtained. If the feedback torque fluctuation of the set feedback torque set is less than or equal to the fourth torque threshold, the tool holder position adjustment is determined to be complete.

10. The method according to claim 9, characterized in that, The method further includes: In each target direction that is not of the lowest priority, if the feedback torque fluctuation of the lowest set of set feedback torques obtained is greater than the fourth torque threshold, the step of obtaining the unadjusted and highest priority target direction is returned to be executed.

11. The method according to claim 9, characterized in that, The method further includes: In the lowest priority target direction, if the feedback torque fluctuation of the lowest set of set feedback torques is greater than the fourth torque threshold, an instruction to replace the blade in the slitting device is output.

12. A blade holder position adjustment device in a slitting apparatus, characterized in that, The device includes: The determining module is configured to, when the feedback torque fluctuation of the current feedback torque set of the slitting device during material slitting is greater than a first torque threshold, determine the tool holder position adjustment amount of the tool holder in the slitting device based on the current feedback torque set and a preset initial feedback torque set; and determine the adjustment priority order of the tool holder in multiple directions based on the tool holder position adjustment amount; wherein, the initial feedback torque set is the set of feedback torques in which the feedback torque fluctuation of the slitting device during material 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 adjustment module is configured to, after the tool holder position adjustment using the tool holder position adjustment amount is completed, determine that the tool holder position adjustment is complete if the feedback torque fluctuation of the target feedback torque set when the slitting device is slitting the material is less than or equal to a fourth torque threshold; and if the feedback torque fluctuation of the target feedback torque set is greater than the fourth torque threshold, continue to adjust the tool holder position according to the adjustment priority order of the tool holder in multiple directions and the preset movement step size of the tool holder; wherein the fourth torque threshold is less than the first torque threshold and greater than or equal to the second torque threshold.

13. A slitting device, characterized in that, The slitting device includes a controller, a main body, a blade holder, and a blade shaft, wherein the blade holder and the blade shaft are both connected to the main body; the controller is connected to the blade holder. The blade holder is provided with a first blade, and the blade shaft is provided with a second blade. The first blade and the second blade cooperate with each other to cut materials. The controller is used to implement the steps of the method according to any one of claims 1 to 11 when executing a computer program.

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

15. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 11.

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