Adjusting system and adjusting method for coating lip

Abstract

The invention provides an adjusting system and an adjusting method for a coating lip. The adjusting system comprises a coating die head, a data acquisition module and an adjusting module, the data acquisition module is connected with the adjusting module through a line; the data acquisition module is used for measuring the coating thickness of the base material and calculating the target deformation quantity of the coating die head according to the coating thickness; in the process that the adjusting module adjusts the coating die head, the data acquisition module is used for detecting the actual deformation quantity of the coating die head in real time; and determining the adjustment of the coating lip according to the difference value between the target deformation quantity and the actual deformation quantity. The actual deformation quantity of each part of the coating lip is obtained in real time, and the obtained actual deformation quantity is compared with the target deformation quantity, so that whether the coating lip is adjusted in place or not can be quickly determined, and the situation that the size of the lip of the coating die head can be adjusted after the coating lip is coated on a base material is not needed; the waste of the base material and the coating can be avoided, and the working efficiency of coating is improved.

Description

Technical Field

[0001] The present application relates to the technical field of coating machines, and in particular to an adjustment system and an adjustment method for a coating lip. Background Art

[0002] In the production process of lithium-ion batteries, the prepared paste-like viscous slurry needs to be evenly, continuously or intermittently coated on the battery substrate through a coating machine. As a precise wet coating technology, slot extrusion coating works in the following way: the slurry is squeezed out along the slit of the coating die under a certain pressure and flow rate and transferred to the substrate. Generally, the coating die consists of an upper die, a lower die and a gasket sandwiched therein. The slurry is extruded from the coating slit and coated on the substrate. During the coating process, due to factors such as the slurry temperature or viscosity, the thickness of the coating is uneven, and the coating thickness needs to be adjusted.

[0003] Currently, the coating thickness adjustment component generally has a groove on each of the upper and lower die heads. The groove divides the lower die head into a base and a deformation part. Several mounting holes are opened in the width direction of the upper and lower die heads. Then, an adjustment component is set at the mounting holes. The thickness of the substrate coating is detected by the detection module, and the opening of the coating lip is adjusted by the control module. However, during the use of the coating die head, the adjustment component may cause errors in its adjustment due to various uncertain factors, causing the lip to open and close improperly. The detection module needs to measure multiple times, and the control module needs to control the adjustment component multiple times to adjust it in order to achieve the ideal lip opening and closing. Each time the coating die head is adjusted, new data can only be obtained after the coating is applied and the coating runs to the thickness gauge. The feedback time is too long, resulting in waste of substrate and coating during the adjustment process. Summary of the Invention

[0004] In order to solve the above problems, the purpose of the embodiments of the present application is to provide an adjustment system for the coating lip.

[0005] In a first aspect, an embodiment of the present application provides a coating lip adjustment system, comprising: a coating die head, a data acquisition module, and an adjustment module;

[0006] The data acquisition module is connected to the adjustment module via a line;

[0007] A data acquisition module is used to measure the coating thickness of the substrate and calculate the target deformation of the coating die according to the coating thickness;

[0008] During the process of the adjustment module adjusting the coating die head, the data acquisition module is used to detect the actual deformation of the coating die head in real time;

[0009] The adjustment of the coating lip is determined based on the difference between the target deformation amount and the actual deformation amount.

[0010] In a second aspect, an embodiment of the present application provides a method for adjusting a coating lip, which is applied to the adjustment system of the first aspect, comprising:

[0011] The coating thickness of the substrate is measured by the data acquisition module, and the target deformation of the coating die is calculated based on the coating thickness;

[0012] During the process of the adjustment module adjusting the coating die head, the actual deformation amount of the coating die head is detected in real time by the data acquisition module;

[0013] The adjustment of the coating lip is determined based on the difference between the target deformation amount and the actual deformation amount.

[0014] The solution provided in the first aspect of the embodiment of the present application provides a coating lip adjustment system, which measures the coating thickness of the substrate through a data acquisition module and calculates the target deformation of the coating die head based on the coating thickness; during the process of the adjustment module adjusting the coating die head, the actual deformation of the coating die head is detected in real time; and the adjustment of the coating lip is determined based on the difference between the target deformation and the actual deformation. Compared with the method in the related art that requires the coating die head to coat the substrate each time and the coating formed on the substrate to run to the thickness gauge before the coating thickness formed on the substrate is obtained and the coating lip size of the coating die head is adjusted according to the obtained coating thickness, the actual deformation of each part of the coating lip can be obtained in real time. By comparing the obtained actual deformation with the target deformation, it can be quickly determined whether the coating lip is adjusted in place. There is no need to wait until the coating lip is coated on the substrate before adjusting the coating die head lip size, which can avoid waste of substrate and coating and improve coating work efficiency.

[0015] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A flowchart of a coating lip adjustment system provided in an embodiment of the present application is shown;

[0018] Figure 2 A cross-sectional view of a coating lip provided in an embodiment of the present application is shown;

[0019] Figure 3 Shown Figure 2 A partial enlarged schematic diagram of point A in the middle;

[0020] Figure 4 A schematic structural diagram of a coating lip provided in an embodiment of the present application is shown.

[0021] Icons: 1. Upper die head; 11. First groove; 12. First mounting hole; 13. First card slot; 14. Fixed slot; 15. First mounting part; 16. First force-bearing part; 2. Lower die head; 21. Second groove; 22. Second mounting hole; 23. Second card slot; 24. Second mounting part; 25. Second force-bearing part; 3. Adjustment assembly; 31. Micro linear servo cylinder; 32. Adjustment rod; 321. Limiting part; 101. Thickness gauge; 201. Strain gauge; 300. Control module; 400. Adjustment module. DETAILED DESCRIPTION

[0022] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0024] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0025] Example 1

[0026] See also Figure 1A working flow chart of a coating lip adjustment system shown; Figure 2 A cross-sectional view of a coating lip is shown; Figure 3 shown Figure 2 A partial enlarged schematic diagram of point A in the middle; Figure 4 A schematic structural diagram of a coating lip is shown.

[0027] This embodiment provides a coating lip adjustment system, including: a coating die head, a data acquisition module, and an adjustment module 400;

[0028] The data acquisition module is connected to the adjustment module 400 via a line;

[0029] A data acquisition module is used to measure the coating thickness of the substrate and calculate the target deformation of the coating die according to the coating thickness;

[0030] During the process of the adjustment module 400 adjusting the coating die head, the data acquisition module is used to detect the actual deformation amount of the coating die head in real time;

[0031] The adjustment of the coating lip is determined based on the difference between the target deformation amount and the actual deformation amount.

[0032] In one embodiment, the line connection refers to an electrical connection.

[0033] The adjustment module 400 is used to adjust the opening and closing degree of the lip of the coating die head.

[0034] The target deformation refers to the difference between the ideal lip opening and closing degree and the lip opening and closing degree actually adjusted by the adjustment module 400 according to the instruction when adjusting the lip opening and closing degree.

[0035] Due to wear of the coating die that affects the coating thickness or other uncertain factors, errors may occur during the adjustment process of the adjustment module 400. Therefore, the actual lip opening and closing degree that the adjustment module 400 can achieve in one adjustment process generally does not reach the ideal lip opening and closing degree, and the adjustment module 400 needs to perform repeated adjustments.

[0036] The actual deformation refers to the deformation of the lip detected in real time during the adjustment process of the adjustment module 400.

[0037] Optionally, a data acquisition module, configured to determine adjustment of the coating lip according to a difference between the target deformation amount and the actual deformation amount, comprises:

[0038] When the difference between the target deformation variable and the actual deformation variable is not less than a preset value, the data acquisition module issues a notice that maintenance is required;

[0039] When the difference between the target shape variable and the actual shape variable is less than a preset value, the data acquisition module continues to execute the step of detecting the actual shape variable of the coating die head in real time until the actual shape variable is equal to the target shape variable.

[0040] Specifically, the preset value can be set in advance in the data acquisition module according to actual needs.

[0041] The notification of maintenance requirement may be an alarm issued by the system, notifying maintenance personnel to inspect the adjustment module 400 and determine whether the adjustment module 400 is damaged.

[0042] By setting preset values, it is possible to promptly detect whether the coating die head has any faults. The alarm issued by the system facilitates maintenance by maintenance personnel and also increases the service life of the equipment.

[0043] When the difference between the target deformation variable and the actual deformation variable is less than the preset value, continue to adjust the parts of the coating lip that need to be adjusted until the target deformation variable required by each part is equal to the actual deformation variable of each part.

[0044] Optionally, the data acquisition module includes: a thickness gauge 101 and a control module 300;

[0045] The thickness gauge 101 is disposed above the substrate;

[0046] Thickness gauge 101, used to measure the coating thickness of the substrate;

[0047] The control module 300 is used to calculate the target deformation amount of the coating die according to the coating thickness.

[0048] Specifically, after the substrate passes through the lip of the coating die, the surface will be coated with slurry, and the thickness gauge 101 can measure the thickness of the slurry on the surface of the substrate.

[0049] The coating thickness of the substrate includes the coating thickness in the width direction of the substrate.

[0050] After comparing and analyzing the coating thickness and obtaining the target deformation amount required for each part of the die lip, the control module 300 can control the adjustment module 400 to adjust the part of the coating lip that needs to be adjusted.

[0051] When using the adjustment system provided herein, thickness gauge 101 regularly measures the coating thickness on the substrate and uploads the relevant coating thickness data to control module 300, which compares and analyzes the uploaded data. If the analysis results indicate that the coating thickness on the substrate does not meet the requirements, control module 300 calculates the target deformation required for each part of the coating lip and controls adjustment module 400 to adjust the coating lip.

[0052] Specifically, the control module 300 is used to calculate the target deformation amount of the coating die head according to the coating thickness, including:

[0053] Compare the coating thickness with the target thickness to obtain a comparison result;

[0054] When the comparison result indicates that the coating thickness is less than the target thickness, the difference between the coating thickness and the target thickness is obtained;

[0055] According to the difference between the obtained coating thickness and the target thickness, the deformation variable corresponding to the difference is queried in the correspondence between the preset coating thickness difference and the deformation variable of the coating die head, and the deformation variable is used as the target deformation variable of the coating die head.

[0056] Specifically, the target thickness refers to the thickness of the coating when the coating lip is at an ideal lip opening and closing degree.

[0057] The corresponding relationship between the preset coating thickness difference and the deformation amount of the coating die head can be obtained based on the experience data of technicians.

[0058] Optionally, the adjustment module 400 includes: a first adjustment unit and a second adjustment unit;

[0059] The first adjustment unit is provided in the upper die head 1 of the coating die head; the upper die head 1 includes a first mounting hole 12, which is provided at a position of the upper die head 1 close to the upper coating lip; the first adjustment unit includes a first adjustment rod 32, which is located in the first mounting hole 12;

[0060] The actual deformation amount includes: a first actual deformation amount and a second actual deformation amount;

[0061] During operation of the first adjustment unit, the first adjustment rod 32 reciprocates along the first mounting hole 12 to generate a push-pull force, and the upper die head 1 is deformed by the push-pull force. In this case, the data acquisition module is used to detect the actual deformation of the coating die head in real time, including:

[0062] Real-time detection of first deformation information of the upper die head 1;

[0063] Performing calculation and analysis on the first deformation information to obtain a first actual deformation amount;

[0064] The second adjustment unit is provided in the lower die head 2 of the coating die head; the lower die head 2 includes a second mounting hole 22, which is provided at a position of the lower die head 2 close to the lower coating lip; the second adjustment unit includes a second adjustment rod 32, which is located in the second mounting hole 22;

[0065] During the operation of the second adjustment unit, the second adjustment rod 32 reciprocates along the second mounting hole 22 to generate a push-pull force, causing the lower die head 2 to deform under the action of the push-pull force. In this case, the data acquisition module is used to detect the actual deformation of the coating die head in real time, and further includes:

[0066] Real-time detection of the second deformation information of the lower die head 2;

[0067] The second deformation information is calculated and analyzed to obtain a second actual deformation amount.

[0068] Specifically, the structures of the first regulating unit and the second regulating unit are similar. For the convenience of description, when introducing the structures of the first regulating unit and the second regulating unit, the first regulating unit or the second regulating unit is referred to as the regulating unit for short.

[0069] The adjustment unit includes a micro linear servo cylinder 31 and an adjustment rod 32. One end of the adjustment rod 32 is threadedly connected to the output end of the micro linear servo cylinder 31. The other end of the adjustment rod 32 is provided with a limiting portion 321. The adjustment rod 32 and the limiting portion 321 form a "T" shape.

[0070] One end of the adjusting rod 32 is integrally formed with the output end of the micro linear servo cylinder 31 , and the other end of the adjusting rod 32 can be connected to the limiting portion 321 in an integral manner or in a detachable manner.

[0071] After the micro linear servo cylinder 31 of the first adjustment unit is turned on, the first adjustment rod 32 can be controlled to reciprocate along the first mounting hole 12, so that under the action of the limiting part 321 of the first adjustment unit, the upper die head 1 is deformed to adjust the height of the upper coating lip.

[0072] Similarly, after the micro linear servo cylinder 31 of the second adjustment unit is turned on, the second adjustment rod 32 can be controlled to reciprocate along the second mounting hole 22, so that under the action of the limiting part 321 of the second adjustment unit, the lower die head 2 is deformed to adjust the height of the lower coating lip.

[0073] In the upper die head 1 , a plurality of first mounting holes 12 may be arranged at intervals, and each first mounting hole 12 matches a first adjustment unit.

[0074] Likewise, a plurality of second mounting holes 22 may be arranged at intervals in the lower die head 2 , and each second mounting hole 22 matches a second adjustment unit.

[0075] The first deformation information may be an electrical signal that can reflect the degree of deformation of the upper die head 1 , and the first actual deformation amount refers to the deformation of the upper lip detected in real time.

[0076] The second deformation information may be an electrical signal that can reflect the degree of deformation of the lower die head 2 , and the second actual deformation amount refers to the deformation of the lower lip detected in real time.

[0077] Optionally, the upper die head 1 further includes: a fixing groove 14 and a first clamping groove 13;

[0078] The fixing groove 14 and the first clamping groove 13 are both located in the upper die head 1;

[0079] The fixing groove 14 is provided on the side of the upper die head 1 away from the coating slit; the first clamping groove 13 is provided at a position of the upper die head 1 close to the coating lip;

[0080] One end of the first mounting hole 12 is connected to the fixing groove 14, and the other end is connected to the first clamping groove 13;

[0081] The first adjusting rod 32 is inserted into the fixing groove 14 and passes through the first mounting hole 12 into the first clamping groove 13; the first adjusting rod 32 reciprocates in the fixing groove 14 and the first mounting hole 12 to generate a push-pull force, and the upper die head 1 is deformed under the action of the push-pull force;

[0082] The lower die head 2 further includes: a second slot 23;

[0083] The second card slot 23 is located in the lower die head 2; the second card slot 23 is provided at a position of the lower die head 2 close to the coating lip;

[0084] One end of the second mounting hole 22 is connected to the second slot 23, and the other end extends to the outside;

[0085] The second adjusting rod 32 passes through the second mounting hole 22 and enters the second clamping slot 23 ; the second adjusting rod 32 reciprocates in the fixing slot 14 and the second mounting hole 22 to generate a push-pull force, and the lower die head 2 is deformed by the push-pull force.

[0086] Specifically, the fixing groove 14 is used to install the micro linear servo cylinder 31 of the first adjustment unit. The end of the first adjustment rod 32 connected to the first limiting portion 321 passes through the first mounting hole 12 and extends into the first card slot 13. The first limiting portion 321 matches the first card slot 13.

[0087] Optionally, the data acquisition module further includes a first strain gauge 201 and a second strain gauge 201;

[0088] The first deformation information includes a first strain signal; the second deformation information includes a second strain signal;

[0089] The upper die head 1 further includes: a first groove 11; the first groove 11 is opened on one side of the upper die head 1 close to the coating lip; in the upper die head 1, the first strain gauge 201 is installed at the bottom of the first groove 11;

[0090] The lower die head 2 further includes: a second groove 21; the second groove 21 is opened on one side of the lower die head 2 close to the coating lip; in the lower die head 2, a second strain gauge 201 is installed at the bottom of the second groove 21;

[0091] The data acquisition module is used to detect the first deformation information of the upper die head 1 in real time, calculate and analyze the first deformation information, and obtain the first actual deformation variable, including:

[0092] Using the control module 300 to collect a first strain signal from the first strain gauge 201;

[0093] Obtaining an initial resistance value of the first strain gauge 201 and a first resistance change value corresponding to the first strain signal;

[0094] The strain of the first strain gauge 201 is calculated using the following formula:

[0095] ε1=K·ΔR1 / R1;

[0096] Wherein, ε1 represents the strain of the first strain gauge 201; K represents the constant of the strain gauge 201; ΔR1 represents the first resistance change value corresponding to the first strain signal; R1 represents the initial resistance value of the first strain gauge 201;

[0097] From the correspondence between the preset strain and the deformation amount of the coating die head, the deformation amount corresponding to the strain of the first strain gauge 201 is found as the first actual deformation amount.

[0098] The first resistance change value corresponding to the first strain signal is obtained by the data acquisition module from a pre-stored correspondence between strain signals and resistance change values ​​according to the first strain signal.

[0099] The data acquisition module is also used to detect the second deformation information of the upper die head 1 in real time, calculate and analyze the second deformation information, and obtain the second actual deformation variable, including:

[0100] Using the control module 300 to collect the second strain signal of the second strain gauge 201;

[0101] Obtaining an initial resistance value of the second strain gauge 201 and a second resistance change value corresponding to the second strain signal;

[0102] The strain of the second strain gauge 201 is calculated using the following formula:

[0103] ε2=K·ΔR2 / R2;

[0104] Wherein, ε2 represents the strain of the second strain gauge 201; ΔR2 represents the second resistance change value corresponding to the second strain signal; R2 represents the initial resistance value of the second strain gauge 201;

[0105] From the correspondence between the preset strain and the deformation amount of the coating die head, the deformation amount corresponding to the strain of the second strain gauge 201 is found as the second actual deformation amount.

[0106] The second resistance change value corresponding to the second strain signal is obtained by the data acquisition module from a pre-stored correspondence between strain signals and resistance change values ​​according to the second strain signal.

[0107] Optionally, the upper die head 1 further includes: a first mounting portion 15 and a first force-bearing portion 16;

[0108] The first groove 11 is formed on the first mounting portion 15 near the coating lip;

[0109] The first groove 11 is perpendicular to the first mounting hole 12 and communicates with the first mounting hole 12; the first mounting hole 12 is located in the first mounting portion 15;

[0110] Under the division of the first groove 11, the first mounting portion 15 forms a first force-bearing portion 16 near the coating lip;

[0111] The first card slot 13 is located in the first force-bearing portion 16;

[0112] The first adjusting rod 32 passes through the first groove 11 and is inserted into the first clamping slot 13;

[0113] The first adjusting rod 32 reciprocates in the fixing slot 14, the first mounting hole 12 and the first groove 11, and applies the push and pull force generated by the reciprocating motion to the first groove 11;

[0114] The lower die head 2 further includes: a second mounting portion 24 and a second force-bearing portion 25;

[0115] The second groove 21 is formed on the second mounting portion 24 near the coating lip;

[0116] The second groove 21 is perpendicular to the second mounting hole 22 and communicates with the second mounting hole 22 ; the second mounting hole 22 is located in the second mounting portion 24 ;

[0117] Under the division of the second groove 21, the second mounting portion 24 forms a second force-bearing portion 25 near the coating lip;

[0118] The second slot 23 is located in the second force-bearing portion 25;

[0119] The second adjusting rod 32 passes through the second groove 21 and is inserted into the second clamping slot 23;

[0120] The second adjusting rod 32 reciprocates in the second mounting hole 22 and the second groove 21 , and applies the push and pull force generated by the reciprocating motion to the second groove 21 .

[0121] Specifically, if Figure 4 As shown, the number of the strain gauges 201 is the same as the number of the adjustment units, and the positions of the strain gauges 201 correspond to the positions of the adjustment units.

[0122] The first clamping slot 13 is located on a side of the first groove 11 close to the coating lip, and the second clamping slot 23 is located on a side of the second groove 21 away from the micro linear servo cylinder 31 of the second adjustment unit.

[0123] The first strain signal refers to the electrical signal output by the first strain gauge 201 , and the second strain signal refers to the electrical signal output by the second strain gauge 201 .

[0124] The activation of the micro linear servo cylinder 31 of the first adjustment unit controls the reciprocating motion of the first adjustment rod 32 along the first mounting hole 12. Under the action of the first limiter 321, the first force-bearing portion 16 deforms, causing the bottom of the first groove 11 to deform as well. Consequently, the first strain gauge 201 strains accordingly, causing the electrical signal output by the first strain gauge 201 to change. The control module 300 can then collect the electrical signal output by the first strain gauge 201. Based on the first strain signal, the control module 300 calculates the first actual deformation of each part of the coating lip.

[0125] The activation of the micro linear servo cylinder 31 of the second adjustment unit controls the reciprocating motion of the second adjustment rod 32 along the second mounting hole 22. Under the action of the second limiter 321, the second force-bearing portion 25 deforms, causing the bottom of the second groove 21 to deform as well. Consequently, the second strain gauge 201 strains accordingly, causing the electrical signal output by the second strain gauge 201 to change. The control module 300 can then collect the electrical signal output by the second strain gauge 201. Based on the second strain signal, the control module 300 calculates the second actual deformation of each part of the coating lower lip.

[0126] When adjusting the coating lip, the bottoms of the first and second grooves 11, 21 bend the most. Therefore, the first strain gauge 201 is positioned at the bottom of the first groove 11, and the second strain gauge 201 is positioned at the bottom of the second groove 21. This design makes the stress changes in the first and second strain gauges 201 more obvious, and the changes in the first and second strain signals more accurate.

[0127] The corresponding relationship between the preset strain and the deformation amount of the coating die head can be obtained based on the experience data of technicians.

[0128] After the coating lip is adjusted, the slurry can be coated on the substrate using the adjusted coating lip to form a coating on the substrate.

[0129] In summary, the embodiment of the present application provides a coating lip adjustment system, which measures the coating thickness of the substrate through a data acquisition module and calculates the target deformation of the coating die head based on the coating thickness; in the process of the adjustment module 400 adjusting the coating die head, the actual deformation of the coating die head is detected in real time; the adjustment of the coating lip is determined based on the difference between the target deformation and the actual deformation; compared with the related art, in which the coating die head needs to coat the substrate each time and the coating formed on the substrate needs to run to the thickness gauge 101 before the coating thickness formed on the substrate is obtained and the lip size of the coating die head can be adjusted based on the obtained coating thickness, the actual deformation of each part of the coating lip can be obtained in real time. By comparing the obtained actual deformation with the target deformation, it can be quickly determined whether the coating lip is adjusted in place. There is no need to wait until the coating lip is coated on the substrate before adjusting the lip size of the coating die head, which can avoid waste of substrate and coating and improve coating work efficiency.

[0130] Example 2

[0131] A coating lip adjustment system provided by Example 1 of the present invention is described in detail above. A coating lip adjustment method provided by Example 2 of the present invention is described in detail below.

[0132] See also Figure 1 A flow chart of a coating lip adjustment method provided by an embodiment of the present invention is shown.

[0133] The method provided in this embodiment is applicable to the adjustment system mentioned in the first embodiment above, including:

[0134] Step 100: Measure the coating thickness of the substrate through a data acquisition module, and calculate the target deformation of the coating die according to the coating thickness.

[0135] Step 102: During the process of the adjustment module adjusting the coating die head, the actual deformation amount of the coating die head is detected in real time by the data acquisition module.

[0136] Step 104: Determine the adjustment of the coating lip according to the difference between the target deformation amount and the actual deformation amount.

[0137] Optionally, the step 100 of calculating the target deformation amount of the coating die according to the coating thickness includes steps A1 to A3:

[0138] Step A1: Compare the coating thickness with the target thickness to obtain a comparison result;

[0139] Step A2: When the comparison result indicates that the coating thickness is less than the target thickness, obtaining a difference between the coating thickness and the target thickness;

[0140] Step A3: according to the difference between the obtained coating thickness and the target thickness, the deformation variable corresponding to the difference is searched in the preset correspondence relationship between the coating thickness difference and the deformation variable of the coating die head as the target deformation variable of the coating die head.

[0141] Optionally, the above step 104 includes steps B1 and B2:

[0142] Step B1: When the difference between the target deformation variable and the actual deformation variable is not less than a preset value, a maintenance notice is issued through the data acquisition module;

[0143] Step B2: When the difference between the target shape variable and the actual shape variable is less than a preset value, the data acquisition module continues to perform the step of real-time detection of the actual shape variable of the coating die head until the actual shape variable is equal to the target shape variable.

[0144] Optionally, the real-time detection of the first deformation information of the upper die head mentioned in the first embodiment, and the calculation and analysis of the first deformation information to obtain the first actual deformation amount include steps C1 to C2:

[0145] Step C1: using the control module to collect a first strain signal of the first strain gauge;

[0146] Step C2: obtaining an initial resistance value of the first strain gauge and a first resistance change value corresponding to the first strain signal;

[0147] The strain of the first strain gauge is calculated by the following formula:

[0148] ε1=K·ΔR1 / R1;

[0149] Wherein, ε1 represents the strain of the first strain gauge; K represents the strain gauge constant; ΔR1 represents the first resistance change value corresponding to the first strain signal; R1 represents the initial resistance value of the first strain gauge;

[0150] Step C3: from the correspondence between the preset strain and the deformation of the coating die head, querying the deformation corresponding to the strain of the first strain gauge as the first actual deformation;

[0151] Optionally, the real-time detection of the second deformation information of the upper die head mentioned in the first embodiment, and the calculation and analysis of the second deformation information to obtain the second actual deformation amount include steps D1 to D3:

[0152] Step D1: using the control module to collect a second strain signal from the second strain gauge;

[0153] Step D2: obtaining an initial resistance value of the second strain gauge and a second resistance change value corresponding to the second strain signal;

[0154] The strain of the second strain gauge is calculated by the following formula:

[0155] ε2=K·ΔR2 / R2;

[0156] Wherein, ε2 represents the strain of the second strain gauge; ΔR2 represents the second resistance change value corresponding to the second strain signal; R2 represents the initial resistance value of the second strain gauge;

[0157] Step D3: From the correspondence between the preset strain and the deformation of the coating die head, the deformation corresponding to the strain of the second strain gauge is searched and obtained as the second actual deformation.

[0158] In summary, the embodiment of the present application provides a method for adjusting the coating lip, which measures the coating thickness of the substrate through a data acquisition module, and calculates the target deformation of the coating die head based on the coating thickness; in the process of the adjustment module adjusting the coating die head, the actual deformation of the coating die head is detected in real time; the adjustment of the coating lip is determined based on the difference between the target deformation and the actual deformation; compared with the related art, in which the coating die head is required to coat the substrate each time, and the coating formed on the substrate is required to run to the thickness gauge before the coating thickness formed on the substrate is obtained and the lip size of the coating die head can be adjusted according to the obtained coating thickness, the actual deformation of each part of the coating lip can be obtained in real time, and the obtained actual deformation can be compared with the target deformation to quickly determine whether the coating lip is adjusted in place. There is no need to wait until the coating lip is coated on the substrate before adjusting the lip size of the coating die head, which can avoid waste of substrate and coating and improve coating work efficiency.

[0159] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A coating lip adjustment system, characterized in that: include: Coating die, data acquisition module and adjustment module; The data acquisition module is connected to the adjustment module via a line; The data acquisition module is used to measure the coating thickness of the substrate and calculate the target deformation amount of the coating die according to the coating thickness; During the process of the adjustment module adjusting the coating die head, the data acquisition module is used to detect the actual deformation amount of the coating die head in real time; An adjustment to the coating lip is determined based on a difference between the target deformation amount and the actual deformation amount.

2. The coating lip adjustment system according to claim 1, characterized in that: The data acquisition module is used to determine the adjustment of the coating lip according to the difference between the target deformation amount and the actual deformation amount, including: When the difference between the target deformation amount and the actual deformation amount is not less than a preset value, the data acquisition module issues a notice requiring maintenance; When the difference between the target shape variable and the actual shape variable is less than a preset value, the data acquisition module continues to perform the step of detecting the actual shape variable of the coating die head in real time until the actual shape variable is equal to the target shape variable.

3. The coating lip adjustment system according to claim 1, characterized in that: The data acquisition module includes: a thickness gauge and a control module; The thickness gauge is arranged above the substrate; The thickness gauge is used to measure the coating thickness of the substrate; The control module is used to calculate the target deformation amount of the coating die head according to the coating thickness.

4. The coating lip adjustment system according to claim 3, characterized in that: The adjustment module includes: a first adjustment unit and a second adjustment unit; The actual deformation amount includes: a first actual deformation amount and a second actual deformation amount; The first adjustment unit is provided in the upper die head of the coating die head; the upper die head includes a first mounting hole, which is provided at a position of the upper die head close to the upper coating lip; the first adjustment unit includes a first adjustment rod, which is located in the first mounting hole; During operation of the first adjustment unit, the first adjustment rod reciprocates along the first mounting hole to generate a push-pull force, and the upper die head is deformed by the push-pull force. In this case, the data acquisition module is used to detect the actual deformation of the coating die head in real time, including: detecting first deformation information of the upper die head in real time; performing calculation and analysis on the first deformation information to obtain a first actual deformation amount; The second adjustment unit is provided in the lower die head of the coating die head; the lower die head includes a second mounting hole, and the second mounting hole is provided at a position of the lower die head close to the lower coating lip; the second adjustment unit includes a second adjustment rod, and the second adjustment rod is located in the second mounting hole; During operation of the second adjustment unit, the second adjustment rod reciprocates along the second mounting hole to generate a push-pull force, causing the lower die head to deform under the action of the push-pull force. In this case, the data acquisition module is used to detect the actual deformation of the coating die head in real time, and further includes: detecting the second deformation information of the lower die head in real time; The second deformation information is calculated and analyzed to obtain a second actual deformation amount.

5. The coating lip adjustment system according to claim 4, characterized in that: The upper die head further includes: a fixing slot and a first clamping slot; The fixing groove and the first clamping groove are both located in the upper die head; The fixing groove is opened on the side of the upper die head away from the coating slit; the first clamping groove is set at the position of the upper die head close to the coating lip; One end of the first mounting hole is connected to the fixing slot, and the other end is connected to the first clamping slot; The first adjusting rod is inserted into the fixing groove and passes through the first mounting hole into the first clamping slot; the first adjusting rod reciprocates in the fixing groove and the first mounting hole to generate a push-pull force, and the upper die head is deformed after being subjected to the push-pull force; The lower die head further includes: a second slot; The second card slot is located in the lower die head; the second card slot is arranged at a position of the lower die head close to the coating lip; One end of the second mounting hole is connected to the second slot, and the other end extends to the outside; The second adjusting rod passes through the second mounting hole and enters the second clamping slot; the second adjusting rod reciprocates in the fixing slot and the second mounting hole to generate a push-pull force, and the lower die head is deformed after being subjected to the push-pull force.

6. The coating lip adjustment system according to claim 4, characterized in that: The data acquisition module further includes a first strain gauge and a second strain gauge; The first deformation information includes a first strain signal; the second deformation information includes a second strain signal; The upper die head further includes: a first groove; the first groove is opened on a side of the upper die head close to the coating lip; in the upper die head, the first strain gauge is installed at the bottom of the first groove; The lower die head further includes: a second groove; the second groove is opened on a side of the lower die head close to the coating lip; in the lower die head, the second strain gauge is installed at the bottom of the second groove.

7. The coating lip adjustment system according to claim 6, characterized in that: The upper die head further comprises: a first mounting portion and a first force-bearing portion; The first groove is formed on the first mounting portion near the coating lip; The first groove is perpendicular to the first mounting hole and communicates with the first mounting hole; the first mounting hole is located in the first mounting portion; Under the division of the first groove, the position of the first mounting portion close to the coating lip forms the first force-bearing portion; The first card slot is located in the first force-bearing portion; The first adjusting rod passes through the first groove and is inserted into the first clamping slot; The first adjusting rod reciprocates in the fixing slot, the first mounting hole, and the first groove channel, and applies the push and pull force generated by the reciprocating motion to the first groove; The lower die head further includes: a second mounting portion and a second force-bearing portion; The second groove is formed on the second mounting portion near the coating lip; The second groove is perpendicular to the second mounting hole and communicates with the second mounting hole; the second mounting hole is located in the second mounting portion; Under the division of the second groove, the second mounting portion near the coating lip forms the second force-bearing portion; The second clamping slot is located in the second force-bearing portion; The second adjusting rod passes through the second groove and is inserted into the second clamping slot; The second adjusting rod performs reciprocating motion in the second mounting hole and the second groove channel, and applies the push and pull force generated in the reciprocating motion to the second groove.

8. A coating lip adjustment method, said method being used to implement the function of the data acquisition module in the adjustment system according to any one of claims 1 to 7, characterized in that: The method comprises: Measuring the coating thickness of the substrate by a data acquisition module, and calculating the target deformation amount of the coating die head according to the coating thickness; During the process of the adjustment module adjusting the coating die head, the actual deformation amount of the coating die head is detected in real time by the data acquisition module; An adjustment to the coating lip is determined based on a difference between the target deformation amount and the actual deformation amount.

9. The adjustment method according to claim 8, characterized in that: The step of determining the adjustment of the coating lip according to the difference between the target deformation amount and the actual deformation amount comprises: When the difference between the target deformation amount and the actual deformation amount is not less than a preset value, a notice requiring maintenance is issued through a data acquisition module; When the difference between the target shape variable and the actual shape variable is less than a preset value, the step of detecting the actual shape variable of the coating die head in real time is continued through the data acquisition module until the actual shape variable is equal to the target shape variable.

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