Method and system for adjusting height of coating scraper of coating device and medium

Abstract

The invention discloses a method and a system for adjusting the height of a coating scraper of a coating device and a medium, the method for adjusting the height of the coating scraper comprises the following steps: compensating the initial height values of the two ends of a sliding table assembly relative to a coating roller, and adjusting the heights of the two ends of the sliding table assembly according to the compensated height values; the technical problem that one end is adjusted excessively or the other end is adjusted insufficiently is solved, the height of the sliding table assembly can be adjusted while leveling is conducted, and compared with the mode that a height adjusting device is additionally arranged to adjust the height of the sliding table assembly, the device used in the coating scraper height adjusting method is simpler in structure and higher in adjusting efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of food and medicine packaging machinery and equipment, and in particular to a coating scraper height adjustment method, system and medium for a coating device. Background Art

[0002] Coating machine is a kind of equipment used for coating process production of substrates such as film and paper. The thickness of the finished coating film is very important for efficacy, cost and economic benefits. The thickness of dry film is between 40-500μm, and the error is required to be ±3μm. The control accuracy of the corresponding wet film thickness is 3μm, and the positioning accuracy is extremely high. In the past, AC / DC servo motors were used as actuators for scraper height positioning, which had problems such as low positioning accuracy, power-off position loss, and high cost.

[0003] The Chinese patent document with publication number CN221335053U discloses a coating head leveling device for leveling the coating head with the coating machine and the sample. The coating machine includes a coating head leveling device and a coating platform, the coating platform is located at the bottom of the coating machine and is used to place the material to be coated. The coating head leveling device includes a frame, a fixing part, a coating head, a sensor assembly and an adjustment assembly. The fixing frame includes a connecting plate and a fixing plate connected to each other, the connecting plate can rotate relative to the fixing plate along a preset axis, the fixing plate is connected to the frame and the fixing plate can move relative to the frame along a first direction, the coating head is connected to the connecting plate, so that the fixing plate can drive the coating head to move relative to the frame along the first direction, the sensor assembly includes two displacement sensors, the two displacement sensors are arranged at two ends of the connecting plate at intervals along the second direction, the two displacement sensors are respectively used to detect the distance between the two ends of the connecting plate and the preset position along the second direction, and the first direction and the second direction are at an angle. The adjustment assembly is connected to the frame and is used to adjust the connection plate to rotate along the preset axis.

[0004] In the above technical solution, the coating head is adjusted manually by the adjusting component of the leveling device, and the adjustment accuracy is easily affected by human interference, making it difficult to achieve synchronous and automatic overall height adjustment of both ends of the scraper at the micron level. Summary of the invention

[0005] In order to solve the problems existing in the prior art during use, the present invention provides a method for adjusting the height of a coating scraper of a coating device which has a simpler structure and a higher adjustment efficiency.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A method for adjusting the height of a coating blade of a coating device comprises the following steps:

[0008] S1. Get the initial height value x at both ends of the slide assembly A 、xB ;

[0009] S2, according to the target height value x and the initial height value x A 、x B Determine the initial motion stroke values ​​a and b of the drive components at both ends of the slide assembly;

[0010] S3, according to the initial height value x A 、x B Determine the stroke compensation values ​​a1 and b1 of the drive components at both ends of the slide assembly;

[0011] S4, respectively compensating the stroke compensation values ​​a1 and b1 to the corresponding initial motion stroke values ​​a and b to obtain the final motion stroke values ​​A and B of the drive components at both ends of the slide assembly;

[0012] S5. Turn on and off the drive assembly according to the final motion stroke values ​​A and B to adjust the height of the two ends of the slide assembly.

[0013] As a further improvement of the above technical solution:

[0014] In some embodiments of the present invention, in step S2, the target height value x is respectively compared with the initial height value x A 、x B Subtract them to obtain the initial motion stroke values ​​a and b at both ends of the slide assembly.

[0015] In some embodiments of the present invention, in step S3, the stroke compensation values ​​a1 and b1 are determined as follows: A 、x B Size, when x A 、x B When x is equal, the stroke compensation values ​​a1 and b1 are determined according to formula (I). A >x B When x A <x B When , the stroke compensation values ​​a1 and b1 are determined according to formulas (Ⅳ) and (Ⅴ);

[0016] a1=b1=0 (Ⅰ)

[0017] a1=-α×(x A -x B ) (Ⅱ)

[0018] b1=β×(x A -x B ) (Ⅲ)

[0019] a1=-β×(x B -x A ) (Ⅳ)

[0020] b1=α×(x B -x A ) (V)

[0021] α and β are the pulse compensation coefficients of the drive components at both ends of the slide assembly.

[0022] In some embodiments of the present invention, 0.1≤α≤0.3 and 0.1≤β≤0.3 are satisfied.

[0023] In some embodiments of the present invention, in step S4, compensating the stroke compensation values ​​a1 and b1 to the corresponding initial motion stroke values ​​a and b respectively means adding the stroke compensation values ​​a1 and b1 to the corresponding initial motion stroke values ​​a and b respectively.

[0024] In some embodiments of the present invention, in step S6, the final motion stroke values ​​A and B are converted into motor pulse instructions of a fixed period, the driving component is a stepping motor, and the driving component is turned on and off according to the motor pulse instructions.

[0025] In some embodiments of the present invention, the following steps are also included before step S1:

[0026] A1. Obtain the thickness values ​​at both ends of the coating film;

[0027] A2. Determine whether the thickness values ​​at both ends of the coating film are equal. If yes, execute step A3; otherwise, execute step S1.

[0028] A3. Determine whether the thickness values ​​at both ends of the coating film are equal to the theoretical thickness values. If yes, continue coating; otherwise, execute step S1.

[0029] As a general inventive concept, the present invention also provides a coating blade height adjustment control system for a coating device, comprising a microprocessor and a memory connected to each other, wherein the microprocessor is programmed or configured to execute the coating blade height adjustment method for the coating device described above.

[0030] As a general inventive concept, the present invention also provides a computer-readable storage medium, in which a computer program or instruction is stored, and the computer program or instruction is programmed or configured to execute the aforementioned coating blade height adjustment method of the coating device through a processor.

[0031] As a general inventive concept, the present invention also provides a computer program product, including a computer program or instructions, which are programmed or configured to execute the above-mentioned coating blade height adjustment method of the coating device through a processor.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] A method for adjusting the height of a coating scraper of a coating device of the present invention compensates for the initial height values ​​at both ends of a slide assembly and adjusts the heights of both ends of the slide assembly according to the compensated height values, thereby solving the technical problem of over-adjustment at one end or under-adjustment at the other end. The height of the slide assembly can also be adjusted while leveling. Compared with separately setting a height adjustment device to adjust the height of the slide assembly, the device structure used in the method for adjusting the height of the coating scraper of the present invention is simpler and has a higher adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The present invention is a process flow chart of a coating blade height adjustment method for a coating device.

[0035] Figure 2 It is a schematic structural diagram of the coating device of the present invention.

[0036] Figure 3 It is a front view of the coating device of the present invention (some parts are removed).

[0037] Figure 4 It is a side view of the coating device of the present invention (with some parts removed).

[0038] Figure 5 It is a configuration diagram of the system of the present invention.

[0039] Legend: 1. Frame; 2. Slide assembly; 3. Drive assembly; 31. First drive member; 32. Second drive member; 4. Displacement sensor assembly; 41. First displacement sensor; 42. Second displacement sensor; 5. Scraper assembly; 6. Coating roller drive member; 7. Pressure roller drive member; 8. Coating roller. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] like Figure 1 As shown, a method for adjusting the height of a coating blade of a coating device of this embodiment includes the following steps:

[0045] S1. Get the initial height value x at both ends of the slide assembly 2 A 、x B ;

[0046] S2, according to the target height value x and the initial height value x A 、x B Determine the initial motion stroke values ​​a and b of the drive components 3 at both ends of the slide assembly 2;

[0047] S3, according to the initial height value x A 、x B Determine the stroke compensation values ​​a1 and b1 of the drive components 3 at both ends of the slide assembly 2;

[0048] S4, respectively compensating the stroke compensation values ​​a1 and b1 to the corresponding initial motion stroke values ​​a and b, to obtain the final motion stroke values ​​A and B of the drive components 3 at both ends of the slide assembly 2;

[0049] S5. Turn on and off the driving assembly 3 according to the final motion stroke values ​​A and B to adjust the heights of the two ends of the slide assembly 2.

[0050] The coating scraper height adjustment method of the coating device of the present invention compensates the two ends of the slide assembly 2 for the initial height values ​​of the positioning assembly used to determine the scraper height, and adjusts the heights of the two ends of the slide assembly 2 according to the compensated height values, thereby solving the technical problem of over-adjustment at one end or under-adjustment at the other end. The height of the slide assembly 2 can also be adjusted while leveling. Compared with setting up a height adjustment device to adjust the height of the slide assembly 2, the device structure used in the coating scraper height adjustment method of the present invention is simpler and has a higher adjustment efficiency.

[0051] like Figures 2 to 4 As shown, the coating device of the present invention includes a frame 1, a slide assembly 2, a drive assembly 3, a displacement sensor assembly 4, a scraper assembly 5, a coating roller 8 and a controller. The slide assembly 2 and the coating roller 8 are installed on the frame 1. The drive assembly 3 is used to drive the two ends of the slide assembly 2 to move up and down relative to the positioning assembly. The scraper assembly 5 is connected to the slide assembly 2 and is arranged close to one side of the coating roller 8. The scraper assembly 5 is used to scrape the coating film on the coating roller 8 to control the thickness of the coating film. The scraper assembly 5 is lifted and lowered together with the slide assembly 2. The displacement sensor assembly 4 is used to detect the height values ​​of the two ends of the slide assembly 2 relative to the positioning assembly. The controller is connected to the drive assembly 3 and the displacement sensor assembly 4 wirelessly or wired.

[0052] In this embodiment, the coating film is a drug film. The thickness of the dry drug film is between 40-500μm, and the error is required to be ±3μm. The control accuracy of the corresponding wet drug film thickness is 3μm. The positioning accuracy is extremely high, and it is very easy to over-adjust and under-adjust. In the coating device of the present invention, the height value change of the two ends of the slide assembly 2 relative to the positioning assembly corresponds to the height value change of the scraper assembly 5 relative to the coating roller 8. The height of the two ends of the slide assembly 2 to the positioning assembly is adjusted by the drive assembly 3, that is, the height value of the two ends of the scraper assembly 5 to the coating roller 8 is adjusted. The displacement sensor assembly 4 is used as the height position feedback of the scraper assembly 5 to control the action of the drive assembly 3, and the slide assembly 2 is moved and positioned to the specified position. The scraper assembly 5 can be fine-tuned by a single action on one side, and the position of the scraper assembly 5 can be controlled with high precision. The accuracy can be controlled within 3μm, so that the thickness accuracy of the coating film meets the production needs.

[0053] In this embodiment, a coating head is provided on the scraper assembly 5, and a drug film raw material is provided in the coating head. The drug film raw material flows out from the opening below the coating head and falls on the release film on the coating roller 8. When the release film transports the drug film, it passes under the scraper assembly 5 and is scraped by the scraper assembly 5.

[0054] The driving assembly 3 includes a first driving member 31 and a second driving member 32 which are arranged at two ends of the slide assembly 2. The first driving member 31 is used to adjust the height of one end of the slide assembly 2 relative to the positioning assembly, and the second driving member 32 is used to adjust the height of the other end of the slide assembly 2 relative to the positioning assembly. In this embodiment, the driving assembly 3 is a stepping motor.

[0055] The displacement sensor assembly 4 includes a first displacement sensor 41 and a second displacement sensor 42 which are relatively arranged at the two ends of the slide assembly 2. The first displacement sensor 41 is used to detect and obtain the height of one end of the slide assembly 2 relative to the positioning assembly, and the second displacement sensor 42 is used to detect and obtain the height of the other end of the slide assembly 2 relative to the positioning assembly. In the present invention, the displacement sensor assembly 4 detects the height of the two ends of the slide assembly 2 relative to the positioning assembly. Compared with the technical solution of detecting the height of the drive assembly 3 relative to the positioning assembly, the present invention eliminates the influence of the movement of the drive assembly 3 on the position during position processing, and the position detection is more accurate.

[0056] The applicant discovered that since the two adjustment components drive the two ends of the slide assembly respectively, when one end of the coating head is leveled at the micron level through the adjustment device, the other end rises or falls. The prior art adjustment of the scraper is prone to over-adjustment or under-adjustment due to the impact of the adjustment at one end on the other end, and the adjustment of the slide assembly is usually two separate actions of overall height adjustment and leveling. The entire adjustment process has a long adjustment cycle and low adjustment efficiency, which affects production. In addition, when dual-motor drive is adopted, the slight difference in the movement of the two drive motors further aggravates the above problems. The present invention solves the above problems well and can achieve scraper leveling while performing overall height adjustment.

[0057] In step S2, the target height value x is compared with the initial height value x A 、x B Subtracting them, the initial motion stroke values ​​a and b at both ends of the slide assembly 2 are obtained. In this embodiment, the target height value x is a preset theoretical height value of the slide assembly 2 relative to the positioning assembly.

[0058] In step S3, the stroke compensation values ​​a1 and b1 are determined as follows: A 、x B Size, when x A 、x B When x is equal, the stroke compensation values ​​a1 and b1 are determined according to formula (I). A >x B When x A <x B When , the stroke compensation values ​​a1 and b1 are determined according to formulas (Ⅳ) and (Ⅴ);

[0059] a1=b1=0 (Ⅰ)

[0060] a1=-α×(x A -x B ) (Ⅱ)

[0061] b1=β×(x A -x B ) (Ⅲ)

[0062] a1=-β×(x B -x A ) (Ⅳ)

[0063] b1=α×(x B -x A ) (V)

[0064] In the above formula, α and β are pulse compensation coefficients of the drive assembly 3 at both ends of the slide assembly 2, and are values ​​greater than 0.

[0065] From the above formula, we can know that: when the initial height value x A 、x B When x is equal, there is no need to perform stroke compensation values ​​a1 and b1; A 、x B When they are not equal, the stroke compensation values ​​a1 and b1 are positive or negative. A 、x B The larger stroke compensation value is used for negative compensation, and the initial height value x A 、x B The smaller stroke compensation value is used for positive compensation.

[0066] like Figure 5 As shown, the controller is connected to the first displacement sensor 41 and the second displacement sensor 42 respectively through the communication module, and the controller is connected to the first driving member 31 and the second driving member 32 respectively through the pulse module.

[0067] In this embodiment, the stroke compensation values ​​a1 and b1 are determined by the controller.

[0068] In the present invention, 0.1≤α≤0.3 and 0.1≤β≤0.3 are satisfied. The values ​​of α and β are empirical values, which are related to the length of the scraper assembly 5 and the properties of the coating glue. Generally speaking, the longer the scraper assembly 5 is, the larger α and β are.

[0069] In step S4, compensating the stroke compensation values ​​a1 and b1 to the corresponding initial motion stroke values ​​a and b respectively means adding the stroke compensation values ​​a1 and b1 to the corresponding initial motion stroke values ​​a and b respectively. In the present invention, the stroke compensation values ​​a1 and b1 are compensated to the corresponding initial motion stroke values ​​a and b respectively by the controller.

[0070] In step S6, the final motion stroke values ​​A and B are converted into motor pulse instructions of a fixed period, and the drive component 3 is turned on and off according to the motor pulse instructions. In the present invention, the positioning signal of the final motion stroke values ​​A and B is converted into a pulse signal by a controller, and the stroke position of the drive component 3 is accurately controlled by the pulse signal.

[0071] The following steps are also included before step S1: A1, obtaining the thickness values ​​at both ends of the coating film; A2, judging whether the thickness values ​​at both ends of the coating film are equal, if yes, executing step A3, otherwise executing step S1; A3, judging whether the thickness values ​​at both ends of the coating film are equal to the theoretical thickness values, if yes, continuing coating, otherwise executing step S1. In the present invention, before adjusting the height of the coating scraper each time, first judge whether the thickness values ​​at both ends of the coating film are equal, if not, height adjustment is required, if the thickness values ​​at both ends are equal, then judge whether the thickness values ​​at both ends are the theoretical thickness values, if not, height adjustment is required.

[0072] In the present invention, the thickness values ​​at both ends of the coating film are determined by the initial height values ​​x of the two ends of the slide assembly 2 relative to the positioning assembly. A 、x B If the thickness values ​​at both ends of the coating film are not equal, it means that the scraper assembly 5 is tilted. At this time, the initial height value x A 、x B If they are not equal, the scraper assembly 5 (slide assembly 2) needs to be leveled, that is, the initial height value x is adjusted. A 、x B , so that the slide assembly 2 is parallel to the coating roller 8. If the thickness of the coating film is less than the theoretical thickness, the target height value x is greater than the initial height value x. A 、x B , the scraper assembly 5 needs to be raised as a whole, and the distance between the scraper assembly 5 and the coating roller 8 needs to be increased. If the coating film thickness value is greater than the theoretical thickness value, the target height value x is less than the initial height value x A 、x B , the scraper assembly 5 needs to be lowered as a whole, the distance between the scraper assembly 5 and the coating roller 8 needs to be reduced, and the height adjustment is also required. Only when the coating film thickness value is equal to the theoretical thickness value, it means that the coating is normal, and no further adjustment is required. The present invention can achieve leveling on the one hand, and the overall height on the other hand, with higher adjustment efficiency and more compact structure.

[0073] In this embodiment, the coating device of the present invention also includes a thickness detection component (not shown in the figure) for detecting the thickness values ​​at both ends of the coating film. The thickness detection component is connected to the controller by wire or wirelessly. The thickness detection component sends the detected thickness value to the controller, and the controller performs subsequent judgment and data processing steps.

[0074] In this embodiment, the coating device also includes a coating roller driving component 6 and a pressure roller driving component 7. The coating roller driving component 6 is installed on the frame 1 to drive the coating roller 8 to rotate, and the pressure roller driving component 7 is installed on the frame 1 to drive the pressure roller (not shown in the figure). The pressure roller and the coating roller 8 are arranged in parallel for conveying the release film. This is the prior art and will not be repeated here.

[0075] The present invention also provides a coating blade height adjustment control system for a coating device, comprising a microprocessor and a memory connected to each other, wherein the microprocessor is programmed or configured to execute the coating blade height adjustment method for the coating device.

[0076] The present invention also provides a computer-readable storage medium, in which a computer program or instruction is stored. The computer program or instruction is programmed or configured to execute the coating blade height adjustment method of the coating device through a processor.

[0077] The present invention also provides a computer program product, including a computer program or an instruction, wherein the computer program or the instruction is programmed or configured to execute the above-mentioned coating blade height adjustment method of the coating device through a processor.

[0078] It should be understood by those skilled in the art that the embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The present invention is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, may be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the functions in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer-readable memory produce a product including an instruction device, which implements the functions specified in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide for implementing the process in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0079] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as above in the preferred embodiment, it is not used to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention, still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A method for adjusting the height of a coating blade of a coating device, characterized in that: The following steps are involved: S1. Get the initial height x of both ends of the slide assembly (2) A 、x B ; S2, according to the target height value x and the initial height value x A 、x B Determine the initial motion stroke values ​​a and b of the drive components (3) at both ends of the slide component (2); S3, according to the initial height value x A 、x B Determining the stroke compensation values ​​a1 and b1 of the drive components (3) at both ends of the slide component (2); S4, respectively compensating the stroke compensation values ​​a1 and b1 to the corresponding initial motion stroke values ​​a and b, to obtain the final motion stroke values ​​A and B of the drive components (3) at both ends of the slide assembly (2); S5. Turning on and off the driving assembly (3) according to the final motion stroke values ​​A and B to adjust the heights of the two ends of the slide assembly (2).

2. The method for adjusting the height of a coating blade of a coating device according to claim 1, characterized in that: In step S2, the target height value x is compared with the initial height value x A 、x B Subtracting each other, the initial motion stroke values ​​a and b at the two ends of the slide assembly (2) are obtained.

3. The method for adjusting the height of a coating blade of a coating device according to claim 1, characterized in that: In step S3, the stroke compensation values ​​a1 and b1 are determined as follows: A 、x B Size, when x A 、x B When x is equal, the stroke compensation values ​​a1 and b1 are determined according to formula (I). A >x B When x A <x B When , the stroke compensation values ​​a1 and b1 are determined according to formulas (Ⅳ) and (Ⅴ); a1=b1=0 (Ⅰ) a1=-α×(x A -x B ) (Ⅱ) b1=β×(x A -x B ) (Ⅲ) a1=-β×(x B -x A ) (Ⅳ) b1=α×(x B -x A ) (Ⅴ) α and β are respectively the pulse compensation coefficients of the driving components (3) at both ends of the slide assembly (2).

4. The method for adjusting the height of a coating blade of a coating device according to claim 3, characterized in that: Satisfies 0.1≤α≤0.3, 0.1≤β≤0.

3.

5. The method for adjusting the height of a coating blade of a coating device according to claim 2, characterized in that: In step S4 , compensating the stroke compensation values ​​a1 and b1 to the corresponding initial motion stroke values ​​a and b respectively means adding the stroke compensation values ​​a1 and b1 to the corresponding initial motion stroke values ​​a and b respectively.

6. The method for adjusting the height of a coating blade of a coating device according to claim 1, characterized in that: In step S6, the final motion stroke values ​​A and B are converted into motor pulse instructions of a fixed period. The drive component (3) is a stepper motor, and the drive component (3) is turned on and off according to the motor pulse instructions.

7. The method for adjusting the height of a coating blade of a coating device according to claim 1, characterized in that: Before step S1, the following steps are also included: A1. Obtain the thickness values ​​at both ends of the coating film; A2, determine whether the thickness values ​​at both ends of the coating film are equal, if yes, execute step A3, otherwise execute step S1; A3. Determine whether the thickness values ​​at both ends of the coating film are equal to the theoretical thickness values. If yes, continue coating; otherwise, execute step S1.

8. A coating blade height adjustment control system for a coating device, comprising a microprocessor and a memory connected to each other, characterized in that: The microprocessor is programmed or configured to execute the method for adjusting the height of the coating blade of the coating device according to any one of claims 2 to 6.

9. A computer-readable storage medium having a computer program or instruction stored therein, characterized in that: The computer program or instruction is programmed or configured to execute the method for adjusting the height of the coating blade of the coating device according to any one of claims 2 to 6 through a processor.

10. A computer program product comprising a computer program or instructions, characterized in that The computer program or instruction is programmed or configured to execute the method for adjusting the height of the coating blade of the coating device according to any one of claims 2 to 6 through a processor.

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