Method, system and device for automatically regulating and controlling water flow rate of wet film pressing and storage medium

Abstract

The invention discloses an automatic regulation and control method, system and device for wet film pressing water flow and a storage medium. The method comprises the steps that water flow control curves corresponding to various flexible plate samples are fitted in advance; respectively acquiring product material number information of each flexible plate sample, and respectively determining water flow corresponding to each flexible plate sample according to the product material number information of each flexible plate sample and the water flow control curve; according to the material number information and the water flow of all the products, constructing a water flow query table; and obtaining target product material number information of the target flexible plate product, querying the target water flow from the water flow query table according to the target product material number information, and performing wet film pressing on the target flexible plate product according to the target water flow. The water flow can be automatically regulated and controlled according to different flexible board products, it is ensured that the flexible board products reach the needed water film thickness, excessive etching of the flexible board products is avoided, and the quality of the flexible board products can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of flexible printed circuit board manufacturing, and particularly to a method, system, device and storage medium for automatically regulating the water flow rate in wet film laminating. Background Art

[0002] A flexible printed circuit board, also known as a flexible printed circuit or FPC (Flexible Printed Circuit), is an electronic component with high flexibility and bendability, and is widely used in various electronic devices such as smartphones, tablets, wearable devices, and medical devices.

[0003] With the integration and upgrade of the functions of electronic products, in order to meet the space limitations, the circuits on flexible printed circuit boards are becoming thinner and denser, which poses a huge challenge to the circuit pattern transfer technology (i.e., the process flow including film laminating → exposure → etching). Among them, film laminating is the first step in the circuit pattern transfer process, and good filling and bonding of the dry film to the substrate are important bases and guarantees for successfully manufacturing the circuit.

[0004] In the film laminating process, the important production parameters affecting the film laminating quality mainly include the hot roller temperature, water flow rate, and dry film pressing speed. The hot roller temperature determines the fluidity of the dry film and affects the bonding force between the dry film and the product substrate. It usually depends on the composition and characteristics of the dry film. That is to say, even for different products, as long as the same type of dry film is used, its hot roller temperature is generally fixed. The film laminating speed depends on the characteristics of the dry film and the substrate. At a specific speed, the dry film should be evenly distributed on the surface of the product substrate and form a good bonding force with it.

[0005] In contrast, the setting of the film laminating water flow rate is more important and complex. When laminating the film, a specific water layer thickness (depending on the type of dry film) needs to be ensured to ensure the wettability and filling performance of the dry film. When the water film is too thick, the wettability of the dry film is too strong, the bonding force with the product is poor, it is easy to cause excessive etching of the circuit, and the required standing time is relatively long, affecting production efficiency; when the water film is too thin, the wettability and filling property of the dry film are poor, it is easy to generate film laminating bubbles and cause excessive etching of the circuit.

[0006] However, in the actual production process, the water film thickness is affected not only by the film laminating speed but also by the water flow rate. Even for different flexible board products of the same substrate with the same film laminating speed, due to the differences in the surface roughness, copper plating area, and number of through and blind holes on their surfaces, the water flow rate required to form a water film with a fixed thickness is also different. Currently, most film laminating machine manufacturers only equip flow meters to control the water flow rate within a certain specific range, but ignore the monitoring of the water film thickness at this specific water flow rate, and also ignore the special requirements of different flexible board products for the water flow rate.

[0007] Therefore, there is an urgent need for a technology that can automatically adjust the lamination water flow rate according to the characteristics of the flexible plate product. Summary of the invention

[0008] In view of this, the present invention provides a method, system, device and storage medium for automatically controlling the water flow rate of wet lamination, so as to solve the problem that the existing lamination technology does not automatically control the water flow rate for different flexible plate products, ensure that the flexible plate product reaches the required water film thickness, and avoid excessive etching of the flexible plate product.

[0009] The present invention provides a method for automatically controlling the water flow rate of wet film pressing, the method comprising:

[0010] Pre-fitting water flow control curves corresponding to a plurality of flexible plate samples; wherein the water flow control curve corresponding to each of the flexible plate samples is specifically a relationship curve between the water film thickness and the water flow corresponding to each of the flexible plate samples;

[0011] Obtaining the product material number information of each flexible plate sample respectively, and determining the water flow rate corresponding to each flexible plate sample according to the product material number information of each flexible plate sample and the water flow rate control curve; and constructing a water flow rate query table according to the product material number information and the water flow rate of all the flexible plate samples;

[0012] The target product material number information of the target flexible plate product is obtained, and according to the target product material number information, the target water flow corresponding to the target flexible plate product is queried from the water flow query table, and the target flexible plate product is wet-laminated according to the target water flow.

[0013] Optionally, the pre-fitting of water flow control curves corresponding to a plurality of flexible plate samples includes:

[0014] Pre-acquire a plurality of water flow control parameters corresponding to each of the flexible plate samples;

[0015] Select any one of the flexible plate samples, and perform film pressing on the selected flexible plate sample according to each corresponding water flow control parameter, and measure multiple water film thicknesses of the selected flexible plate sample under each water flow control parameter according to a preset water film measurement time;

[0016] For the selected flexible plate sample, all water film thicknesses under any of the water flow control parameters are selected to determine whether all water film thicknesses of the selected flexible plate sample under the selected water flow control parameters are valid; if so, the average water film thickness of the selected flexible plate sample under the selected water flow control parameters is calculated; otherwise, all water film thicknesses of the selected flexible plate sample under the selected water flow control parameters are eliminated;

[0017] In the same way, respectively determine whether all the water film thicknesses of the selected flexible board samples under each of the water flow control parameters are valid;

[0018] Perform curve fitting based on the average water film thickness of the selected flexible board samples in all valid cases and the corresponding water flow control parameters to obtain the water flow control curve corresponding to the selected flexible board samples;

[0019] In the same way, respectively fit to obtain the water flow control curve corresponding to each of the flexible board samples.

[0020] Optionally, each of the water flow control parameters includes the corresponding water flow rate, water flow rate holding duration, and number of water film measurements;

[0021] Among them, the water flow rate is determined by the corresponding preset water flow rate control range and preset water flow rate control step; the water flow rate holding duration is determined by the corresponding number of water film measurements and the preset water film measurement time.

[0022] Optionally, the determination of whether all the water film thicknesses of the selected flexible board samples under the selected water flow control parameters are valid includes:

[0023] Based on all the water film thicknesses of the selected flexible board samples under the selected water flow rate, calculate the uniformity index of the selected flexible board samples under the selected water flow rate;

[0024] Judge whether the uniformity index of the selected flexible board samples under the selected water flow rate meets the uniformity criterion. If so, determine that all the water film thicknesses of the selected flexible board samples under the selected water flow control parameters are valid; otherwise, determine that all the water film thicknesses of the selected flexible board samples under the selected water flow control parameters are invalid.

[0025] Optionally, the calculation of the uniformity index of the selected flexible board samples under the selected water flow rate based on all the water film thicknesses of the selected flexible board samples under the selected water flow rate includes:

[0026] Calculate the average water film thickness corresponding to all the water film thicknesses of the selected flexible board samples under the selected water flow rate;

[0027] Based on the average water film thickness, the maximum water film thickness, and the minimum water film thickness among all the water film thicknesses of the selected flexible board samples under the selected water flow rate, calculate the corresponding uniformity index;

[0028] The specific formula for calculating the uniformity index is:

[0029]

[0030] Wherein, U is the uniformity index of the selected flexible board sample under the selected water flow rate, d max and d min are respectively the maximum water film thickness and the minimum water film thickness among all the water film thicknesses of the selected flexible board sample under the selected water flow rate, and d ave is the average water film thickness corresponding to all the water film thicknesses of the selected flexible board sample under the selected water flow rate.

[0031] Optionally, the uniformity criterion is specifically: U≥a, where a is the preset uniformity threshold.

[0032] Optionally, the curve fitting is performed according to the average water film thickness of the selected flexible board sample in all valid cases and the corresponding water flow control parameters to obtain the water flow control curve corresponding to the selected flexible board sample, including:

[0033] Taking the average water film thickness as the output variable and the water flow rate as the input variable, and performing curve fitting according to the average water film thickness of the selected flexible board sample in all valid cases and the corresponding water flow rate to obtain the water flow control curve corresponding to the selected flexible board sample.

[0034] Optionally, the number of the average water film thicknesses of each flexible board sample in all valid cases and the number of the corresponding water flow rates are both greater than or equal to 3.

[0035] Optionally, determining the water flow rate corresponding to each flexible board sample according to the product part number information of each flexible board sample and the water flow control curve includes:

[0036] Determining the corresponding dry film type of each flexible board sample according to the product part number information of each flexible board sample;

[0037] Determining the corresponding water film thickness of each flexible board sample according to the dry film type of each flexible board sample;

[0038] Substituting the water film thickness corresponding to each flexible board sample into the corresponding water flow controller curve respectively to obtain the water flow rate corresponding to each flexible board sample.

[0039] In addition, the present invention also provides a wet laminating water flow rate automatic regulation system, which is applied to the foregoing wet laminating water flow rate automatic regulation method, and the system includes:

[0040] A curve fitting module for pre-fitting water flow control curves corresponding to multiple flexible plate samples; wherein, the water flow control curve corresponding to each flexible plate sample is specifically a relationship curve between the water film thickness and the water flow corresponding to each flexible plate sample;

[0041] A lookup table establishment module for respectively obtaining the product part number information of each flexible plate sample, determining the water flow corresponding to each flexible plate sample according to the product part number information and the water flow control curve of each flexible plate sample; and constructing a water flow lookup table according to the product part number information and the water flow of all flexible plate samples;

[0042] A water flow query module for obtaining the target product part number information of the target flexible plate product, and querying the target water flow corresponding to the target flexible plate product from the water flow lookup table according to the target product part number information;

[0043] A regulating film pressing module for performing wet film pressing on the target flexible plate product according to the target water flow.

[0044] In addition, the present invention also provides a wet film pressing water flow automatic regulation device, including a processor, a memory, and a computer program stored in the memory and operable on the processor, and the method steps in the foregoing wet film pressing water flow automatic regulation method are implemented when the computer program runs.

[0045] In addition, the present invention also provides a computer storage medium, the computer storage medium includes: at least one instruction, and the method steps in the foregoing wet film pressing water flow automatic regulation method are implemented when the instruction is executed.

[0046] Advantages of the present invention: The pre-fitted water flow control curves corresponding to various flexible plate samples represent the relationship curves between the water film thickness and the water flow for each type of flexible plate sample; through these water flow control curves, it is convenient to subsequently determine the water flow to be controlled for different flexible plate samples based on the corresponding water flow control curve after determining the water film thickness corresponding to the flexible plate sample; since the water film thickness of different flexible plate samples is closely related to the corresponding product part number information, on the one hand, it is convenient to subsequently determine the water film thickness of different flexible plate samples according to the product part number information, and then determine the corresponding water flow, and on the other hand, it is convenient to subsequently correspond the determined water flow with the product part number information of the flexible plate sample one by one, thus facilitating the construction of a water flow query table; through the constructed water flow query table, in different actual application scenarios, the target water flow corresponding to the actual flexible plate product (i.e., the target flexible plate product) can be directly queried according to the target product part number information, and wet lamination is performed based on the queried target water flow, realizing the automatic regulation of the water flow of different products in the wet lamination process;

[0047] The automatic water flow regulation method, system, device and storage medium for wet lamination of the present invention can automatically regulate the water flow for different flexible plate products, ensure that the flexible plate products reach the required water film thickness, avoid over-etching of the flexible plate products, and effectively improve the quality of the flexible plate products. Brief Description of the Drawings

[0048] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings. The drawings are schematic and should not be construed as any limitation to the present invention. In the drawings:

[0049] Figure 1 The flowchart of an automatic water flow regulation method for wet lamination in Embodiment 1 of the present invention is shown;

[0050] Figure 2 The schematic diagram of a water flow control curve in Embodiment 1 of the present invention is shown;

[0051] Figure 3 The complete flowchart of the automatic water flow regulation method for wet lamination in Embodiment 1 of the present invention is shown;

[0052] Figure 4 The structural diagram of an automatic water flow regulation system for wet lamination in Embodiment 2 of the present invention is shown. Detailed Description of the Invention

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0054] Embodiment 1

[0055] This embodiment provides a method for automatically regulating the water flow rate in wet laminating, as Figure 1 shown. The method includes:

[0056] S1: Pre-fit water flow control curves corresponding to multiple flexible board samples; where each water flow control curve corresponding to each flexible board sample is specifically a relationship curve between the water film thickness and the water flow rate corresponding to each flexible board sample;

[0057] S2: Respectively obtain the product part number information of each flexible board sample, and respectively determine the water flow rate corresponding to each flexible board sample according to the product part number information of each flexible board sample and the water flow control curve; and construct a water flow rate query table according to the product part number information and the water flow rate of all the flexible board samples;

[0058] S3: Obtain the target product part number information of the target flexible board product, query the target water flow rate corresponding to the target flexible board product from the water flow rate query table according to the target product part number information, and perform wet laminating on the target flexible board product according to the target water flow rate.

[0059] In this embodiment, the pre-fitted water flow control curves corresponding to the various flexible plate samples represent the relationship curve between the water film thickness and the water flow corresponding to each type of flexible plate sample; through these water flow control curves, it is convenient to determine the water flow that needs to be controlled for different flexible plate samples based on the corresponding water flow control curves after the water film thickness corresponding to the flexible plate sample is determined; since the water film thickness of different flexible plate samples is closely related to the corresponding product material number information, by respectively obtaining the product material number information of each flexible plate sample, on the one hand, it is convenient to determine the water film thickness of different flexible plate samples according to the product material number information, and then to determine the corresponding water flow; on the other hand, it is convenient to correspond the determined water flow to the product material number information of the flexible plate sample one by one, and then to construct a water flow query table; through the constructed water flow query table, in different actual application scenarios, the corresponding target water flow can be directly queried according to the target product material number information corresponding to the actual flexible plate product (i.e., the target flexible plate product), and wet lamination is performed based on the queried target water flow, thereby realizing automatic regulation of the water flow of different products in the wet lamination process.

[0060] The automatic control method of wet lamination water flow in this embodiment can automatically control the water flow for different flexible plate products, ensure that the flexible plate products reach the required water film thickness, avoid excessive etching of the flexible plate products, and effectively improve the quality of the flexible plate products.

[0061] Each step of the method for automatically controlling the water flow rate of wet film pressing in this embodiment is described in detail below.

[0062] Preferably, S1 includes:

[0063] S11: pre-acquire a plurality of water flow control parameters corresponding to each of the flexible plate samples;

[0064] Select any one of the flexible plate samples, and perform film pressing on the selected flexible plate sample according to each corresponding water flow control parameter, and measure multiple water film thicknesses of the selected flexible plate sample under each water flow control parameter according to a preset water film measurement time;

[0065] S12: for the selected flexible plate sample, select all water film thicknesses under any of the water flow control parameters, and determine whether all water film thicknesses of the selected flexible plate sample under the selected water flow control parameters are valid; if so, calculate the average water film thickness of the selected flexible plate sample under the selected water flow control parameters; otherwise, remove all water film thicknesses of the selected flexible plate sample under the selected water flow control parameters;

[0066] S13: In the same way, respectively determine whether all the water film thicknesses of the selected flexible board samples under each of the water flow control parameters are valid;

[0067] S14: According to the average water film thickness of the selected flexible board samples in all valid cases and the corresponding water flow control parameters, perform curve fitting to obtain the water flow control curve corresponding to the selected flexible board samples;

[0068] S15: In the same way, respectively fit to obtain the water flow control curve corresponding to each type of flexible board sample.

[0069] The water flow control parameters corresponding to different types of flexible board samples are all different, and the corresponding valid water film thicknesses are also different. By pre-acquiring multiple water flow control parameters corresponding to each type of flexible board sample, it is convenient to find the valid water film thickness corresponding to each type of flexible board sample subsequently, and then it is convenient to fit the relationship curve between the accurate water film thickness and the water flow of each type of flexible board sample, that is, the water flow control curve; after determining multiple water flow control parameters for each type of flexible board sample, for each type of flexible board sample, perform film pressing respectively according to each corresponding water flow control parameter. During this process, measure the water film thickness at each water flow control parameter at regular intervals according to the preset water film measurement time. Since it is measured at regular intervals, multiple water film thicknesses at each water flow control parameter can be obtained; then by judging the effectiveness of all the water film thicknesses at each water flow control parameter, the valid water film thickness and the corresponding water flow control parameters for subsequent water flow control curve fitting can be accurately found; since the water flow control parameters include parameters related to the water flow, based on the valid water film thickness and the corresponding water flow control parameters, the water flow control curves of different types of flexible board samples can be fitted, and then the laws among the product type, the water film thickness and the water flow can be summarized, which is convenient for automatically regulating the water flow according to the specific flexible board product type in actual production subsequently.

[0070] In S11, each of the water flow control parameters includes the corresponding water flow, the water flow holding duration, and the number of water film measurements;

[0071] Among them, the water flow is determined by the corresponding preset water flow control range and the preset water flow control step; the water flow holding duration is determined by the corresponding number of water film measurements and the preset water film measurement time.

[0072] The preset water flow control range refers to the range of water flow adopted for each flexible plate sample during the entire film pressing process, which can be set according to the actual sample type, such as [10 ml / min, 60 ml / min]; the preset water flow control step is the water flow change (increase or decrease) for each flexible plate sample each time, which can also be set according to the actual product type, for example, set to increase by 10 ml / min each time. The water flow in each water flow control parameter is determined by the preset water flow control range and the preset water flow control step of the corresponding flexible plate sample. For example, when the preset water flow control range is [10 ml / min, 60 ml / min] and the preset water flow control step is to increase by 10 ml / min each time, the water flow in each water flow control parameter of this type of flexible plate product is specifically 10 ml / min, 20 ml / min, 30 ml / min, 40 ml / min, 50 ml / min, and 60 ml / min respectively, which is equivalent to a total of 6 water flow control parameters.

[0073] The number of water film measurements refers to the number of times the water film thickness needs to be measured under the control of the water flow in each water flow control parameter, which can be set according to the actual sample type, for example, 6 times, that is, at each water flow of 10 ml / min, 20 ml / min, 30 ml / min, 40 ml / min, 50 ml / min, and 60 ml / min, the water film thickness is measured 6 times; the preset water film measurement time is the time for regularly measuring the water film thickness, that is, the time interval between every two measurements of the water film thickness, which can also be set according to the actual sample type, for example, 20 s, that is, for the 6 measurements of the water film thickness at any water flow (such as 10 ml / min), it is measured every 20 s. The duration of maintaining the water flow in each water flow control parameter refers to the duration that needs to be maintained under the control of each water flow, which is determined by the corresponding number of water film measurements and the preset water film measurement time. For example, when the number of water film measurements is set to 6 times and the preset water film measurement time is set to 20 s, then under the control of each water flow, it needs to be maintained for 6×20 s = 120 s.

[0074] Through the above water flow control parameters, it is convenient to measure the water film thickness under different water flow controls, and then find out the effective water film thickness data and water flow data from them, which is convenient for the accurate fitting of the subsequent water flow control curve.

[0075] Specifically, each water flow control parameter also includes a set film pressing speed.

[0076] Among them, the set film pressing speed under each water flow control parameter is the same. With the same set film pressing speed, it can effectively avoid the influence of the film pressing speed on wet film pressing, and then facilitate accurately finding the law between the water flow and the water film thickness subsequently.

[0077] In S13, it is determined whether all the water film thicknesses of the selected flexible board sample under the selected water flow control parameter are valid, including:

[0078] S131: Calculate the uniformity index of the selected flexible board sample under the selected water flow according to all the water film thicknesses of the selected flexible board sample under the selected water flow;

[0079] S132: Determine whether the uniformity index of the selected flexible board sample under the selected water flow meets the uniformity criterion. If so, it is determined that all the water film thicknesses of the selected flexible board sample under the selected water flow control parameter are valid; otherwise, it is determined that all the water film thicknesses of the selected flexible board sample under the selected water flow control parameter are invalid.

[0080] Since when the water flow is too large or too small, the water film (i.e., uneven water film) accumulated on the surface of the flexible board sample causes the measured water film thickness to not conform to the actual situation. Therefore, in this embodiment, by calculating the uniformity index of the flexible board sample under the selected water flow and using this uniformity index to realize the effectiveness judgment of the corresponding water film thickness, the uniform water film on the surface of the flexible board sample can be screened out. Only when the surface of the flexible board sample has a uniform water film, the measured water film thickness is valid. By using this method, the effective water flow and water film thickness of each flexible board product are screened out, effectively ensuring the accuracy and reliability of subsequent curve fitting.

[0081] Specifically, the above S131 includes:

[0082] S1311: Calculate the average water film thickness corresponding to all the water film thicknesses of the selected flexible board sample under the selected water flow;

[0083] S1312: Calculate the corresponding uniformity index according to the average water film thickness, the maximum water film thickness and the minimum water film thickness among all the water film thicknesses of the selected flexible board sample under the selected water flow;

[0084] The specific formula for calculating the uniformity index is:

[0085]

[0086] where U is the uniformity index of the selected flexible board sample under the selected water flow, d max and d min are respectively the maximum water film thickness and the minimum water film thickness among all the water film thicknesses of the selected flexible board sample under the selected water flow, and d ave is the average water film thickness corresponding to all the water film thicknesses of the selected flexible board sample under the selected water flow.

[0087] In the process of calculating the uniformity index of the flexible board product under the water flow rate, calculating the uniformity index based on the average water film thickness, the maximum water film thickness, and the minimum water film thickness of all water film thicknesses can take more into account the deviations or inconsistencies in the actual process. The obtained uniformity index is more in line with the actual situation of the flexible board, with higher accuracy and reliability.

[0088] In an alternative embodiment, for a certain flexible board sample under the control of a water flow rate of 10 ml / min, the water flow rate control duration is 120 s. The water film thickness is measured every 20 s within these 120 s, and 6 water film thicknesses can be obtained, which are respectively denoted as d 1 , d 2 , d 3 …d 6 . Then, under this water flow rate of 10 ml / min, the calculation formula for the average water film thickness d ave is: d ave = (d 1 + d 2 + d 3 + d 4 + d 5 + d 6 ) / 6; Substitute the calculated d ave into the calculation formula of the uniformity index , and the corresponding uniformity index U can be obtained.

[0089] The calculation process of the uniformity index in other cases is the same by analogy and will not be listed here.

[0090] Specifically, in the above S132, the uniformity criterion is specifically: U ≥ a, where a is the preset uniformity threshold.

[0091] When calculating the uniformity index of each flexible board sample under each water flow rate according to the method described in S131, substitute the uniformity index under each water flow rate into the uniformity criterion respectively. If the uniformity index ≥ a, it means that the uniformity index under this water flow rate meets the uniformity criterion, and the corresponding water flow rate and all corresponding water film thicknesses are valid and are retained for subsequent curve fitting; if the uniformity index < a, it means that the uniformity index under this water flow rate does not meet the uniformity criterion, and the corresponding water flow rate and all corresponding water film thicknesses are invalid and are excluded.

[0092] The above preset uniformity threshold can be preset and adjusted according to the actual situation. The preset uniformity threshold for each flexible board sample can adopt the same value, for example, taking 80%; the preset uniformity thresholds for different flexible board samples can be the same or different.

[0093] In S14, the validity judgment of all water film thicknesses under each water flow rate control parameter is implemented according to step S13.

[0094] S15 includes:

[0095] Taking the average water film thickness as the output variable and the water flow rate as the input variable, curve fitting is performed based on the average water film thickness and the corresponding water flow rate of the selected flexible plate sample under all valid conditions to obtain the water flow rate control curve corresponding to the selected flexible plate sample.

[0096] For each type of flexible plate product, the average water film thickness is determined as the actual water film thickness and used as the output variable during curve fitting, and the water flow rate is used as the input variable. Substitute the average water film thickness and water flow rate under all valid conditions into the above method for curve fitting, and the law between the water flow rate and the water film thickness can be found to obtain an accurate water flow rate control curve; Curve fitting by the above method has a simple principle, is easy to operate, conforms to the actual situation of the flexible plate sample, and has a high accuracy rate.

[0097] Among them, the curve fitting method adopted can be a linear fitting method or a logarithmic function fitting method.

[0098] In an alternative embodiment, the expression of the water flow rate control curve corresponding to the flexible plate sample is specifically: d = kQ + b ; where Q represents the water flow rate, d represents the water film thickness, and both k and b represent constant coefficients. That is, the law between the water flow rate and the water film thickness of this type of flexible plate sample conforms to a linear relationship. In one specific embodiment, the fitted water flow rate control curve is as Figure 2 shown, Figure 2 The horizontal axis of represents the water flow rate, the vertical axis represents the water film thickness, and the constant coefficients k and b are 1.531 and 4.167 respectively, and the expression is d = 1.531Q + 4.167. The water flow rate control curves fitted for different types of flexible plate samples may be different.

[0099] During the above fitting process, the number of the average water film thickness and the corresponding number of the water flow rate of each flexible plate sample under all valid conditions are both greater than or equal to 3.

[0100] Through the above number of valid average water film thicknesses greater than or equal to 3 and the corresponding number of water flow rates, the accuracy of the fitted water flow rate control curve can be effectively ensured.

[0101] Further, when the average water film thickness and the corresponding water flow rate of each flexible board sample in all valid cases are found through the foregoing steps, the valid water flow rate can be further finely divided to obtain a more refined water flow rate, and based on this refined water flow rate, multiple water film thicknesses are measured again. The combination of the average value of these water film thicknesses and the refined water flow rate is also used as the data basis for subsequent curve fitting, which can further ensure the accuracy of the fitted water flow control curve.

[0102] For example, when the valid water flow rates include 20 ml / min and 30 ml / min, the interval [20 ml / min, 30 ml / min] can be further finely divided. For example, starting from 20 ml / min and increasing by 1 ml / min every 1 ml / min until 30 ml / min, 10 refined water flow rates can be obtained. Similarly, at each refined water flow rate, keep it for 120 s and measure the water film thickness every 20 s. Then, 6 water film thicknesses can be obtained at each refined water flow rate. Calculate the average water film thickness and the uniformity index at each refined water flow rate in the same way. When the uniformity index ≥ a, it is regarded as valid, and the valid average water film thickness and the refined water flow rate are also used for curve fitting; when the uniformity index < a, it is regarded as invalid and excluded.

[0103] In this embodiment S2, the product part number information of each of the flexible board samples is obtained respectively. It can be obtained by scanning the QR code on the sample with an Auto scan device (such as a QR code scanner) on the flexible board production line. The product part number information is a set of codes or data used to uniquely identify and trace materials, which usually includes product identification, production information, material attributes, customer or order information, and other special information. The product identification may include the model, specification, or serial number of the product, etc., which is used to uniquely identify the FPC finished product; the production information includes the production date, production batch, etc., which helps to trace the production process and quality control of the product; the material attributes may include basic information such as the material type, size, weight of the product, etc.; the customer or order information includes the customer name, order number, etc., which is convenient to associate the product with the customer or order to ensure that the product is produced and delivered according to the customer's requirements; other special information is set according to customer requirements or company regulations, such as safety certification marks, environmental protection marks, etc.

[0104] In this embodiment S2, according to the product part number information and the water flow control curve of each of the flexible board samples, the water flow rate corresponding to each of the flexible board samples is determined respectively, including:

[0105] S21: According to the product part number information of each of the flexible board samples, determine the corresponding dry film type of each of the flexible board samples respectively;

[0106] S22: Determine the water film thickness corresponding to each flexible board sample according to the dry film type of each flexible board sample.

[0107] S23: Substitute the water film thickness corresponding to each flexible board sample into the corresponding water flow controller curve to obtain the water flow corresponding to each flexible board sample.

[0108] After fitting the water flow control curve of the flexible board sample, through the product part number information obtained by scanning the flexible board sample, the water flow control curve can be associated with the product part number information; at the same time, the product part number information obtained by scanning also includes the dry film type, and the dry film type can determine the required water film thickness. Substituting the water film thickness into the corresponding water flow control curve can obtain the required water flow, and the product part number information is also associated with the water flow. Through the corresponding relationship among the product part number information, water flow, and water film thickness, it is convenient to construct a water flow query table subsequently, and then in actual production, directly query the water flow query table through the product part number information of the specific flexible board product to quickly obtain the water flow and realize the automatic regulation of the water flow.

[0109] In the present embodiment S2, the water flow query table is specifically a relationship table storing the one-to-one correspondence between the water flow and the product part number information. After constructing this water flow query table, upload this query table to the server for storage.

[0110] In the present embodiment S3, obtain the target product part number information of the target flexible board product, which is also obtained by scanning the two-dimensional code on the target flexible board sample through an Auto scan device (such as a two-dimensional code scanner). When obtaining the target product part number information of the target flexible board product, query the water flow query table according to the target product part number information to obtain the corresponding target water flow, and use it in the actual wet laminating process, which can ensure that the flexible board product reaches the required water film thickness, avoid over-etching of the flexible board product, and effectively improve the quality of the flexible board product.

[0111] The complete process of the automatic regulation method for the water flow in the wet laminating of this embodiment is as Figure 3 shown.

[0112] Embodiment 2

[0113] A system for automatically regulating the water flow in wet laminating is applied to the method for automatically regulating the water flow in wet laminating in Embodiment 1, as Figure 4 shown, and includes:

[0114] A curve fitting module, configured to pre-fit the water flow control curves corresponding to multiple flexible board samples in advance; wherein, the water flow control curve corresponding to each flexible board sample is specifically a relationship curve between the water film thickness and the water flow corresponding to each flexible board sample.

[0115] A query table building module, configured to respectively obtain the product part number information of each of the flexible board samples, and determine the water flow rate corresponding to each of the flexible board samples according to the product part number information of each of the flexible board samples and the water flow control curve; and construct a water flow query table according to the product part number information and the water flow rate of all the flexible board samples.

[0116] A water flow query module, configured to obtain the target product part number information of a target flexible board product, and query the target water flow rate corresponding to the target flexible board product from the water flow query table according to the target product part number information.

[0117] A regulating and laminating module, configured to perform wet laminating on the target flexible board product according to the target water flow rate.

[0118] In the embodiment, the water flow control curves corresponding to a plurality of flexible board samples pre-fitted by a curve fitting module represent the relationship curves between the corresponding water film thickness and the water flow rate of each type of flexible board sample; through these water flow control curves, it is convenient to subsequently determine the water flow rates to be controlled corresponding to different flexible board samples based on the corresponding water flow control curves after determining the water film thickness corresponding to the flexible board samples; since the water film thickness of different flexible board samples is closely related to the corresponding product part number information, the query table building module respectively obtains the product part number information of each flexible board sample. On the one hand, it is convenient to subsequently determine the water film thickness of different flexible board samples according to the product part number information, and further convenient to determine the corresponding water flow rate. On the other hand, it is convenient to subsequently correspond the determined water flow rate with the product part number information of the flexible board sample one by one, and further convenient to construct a water flow query table; through the constructed water flow query table, in different actual application scenarios, the target water flow rate can be directly queried by the water flow query module according to the target product part number information of the actual flexible board product (i.e., the target flexible board product), and finally, the wet laminating is performed by the regulating and laminating module based on the queried target water flow rate, realizing the automatic regulation of the water flow rate of different products in the wet laminating process.

[0119] The automatic water flow regulation system for wet laminating in this embodiment can automatically regulate the water flow rate for different flexible board products, ensure that the flexible board products reach the required water film thickness, avoid over-etching of the flexible board products, and can effectively improve the quality of the flexible board products.

[0120] The functions of the modules in the automatic water flow regulation system for wet laminating in this embodiment are the same as the method steps of the automatic water flow regulation method for wet laminating described in Embodiment 1. Therefore, for the details not described in this embodiment, please refer to Embodiment 1 and Figure 1 and Figure 3 the specific descriptions, which will not be elaborated here.

[0121] Embodiment III

[0122] A wet pressing film water flow automatic control device includes a processor, a memory, and a computer program stored in the memory and operable on the processor. When the computer program runs, it implements the method steps in the wet pressing film water flow automatic control method of Embodiment I.

[0123] Through the computer program stored on the memory and running on the processor, it can automatically control the water flow for different flexible board products, ensure that the flexible board products reach the required water film thickness, avoid over-etching of the flexible board products, and effectively improve the quality of the flexible board products.

[0124] The so-called processor may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor, or the processor may also be any conventional processor, etc. The processor is the control center of the computer device, and uses various interfaces and lines to connect all parts of the entire computer device.

[0125] The memory can be used to store computer programs and / or models. The processor realizes various functions of the computer device by running or executing the computer programs and / or models stored in the memory, and by calling the data stored in the memory. The memory mainly includes a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, video data, etc.). In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a SmartMedia Card (SMC), a Secure Digital (SD) card, a Flash Card, at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0126] It should be understood that each process and / or block in the flowchart and / or block diagram can be implemented by a computer program, as well as the combination of processes and / or blocks in the flowchart and / or block diagram. These computer programs can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in one process Figure 1 one process or multiple processes and / or blocks Figure 1 or means for implementing the functions specified in one block or multiple blocks.

[0127] These computer programs can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including instruction means, and the instruction means implement the functions specified in one process Figure 1 one process or multiple processes and / or blocks Figure 1 or means for implementing the functions specified in one block or multiple blocks.

[0128] These computer programs 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 generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one process Figure 1 one process or multiple processes and / or blocks Figure 1 or means for implementing the functions specified in one block or multiple blocks.

[0129] This embodiment also provides a computer storage medium, which includes: at least one instruction that, when executed, implements the method steps in the automatic regulation method of wet laminating water flow in Embodiment 1.

[0130] By executing a computer storage medium containing at least one instruction, the automatic regulation of water flow can be performed for different flexible board products, ensuring that the flexible board products reach the required water film thickness, avoiding over-etching of the flexible board products, and effectively improving the quality of the flexible board products.

[0131] Similarly, for the details not described in this embodiment, please refer to the specific descriptions in Embodiment 1, Embodiment 2 and Figures 1 to 4 which will not be elaborated here.

[0132] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A method for automatically controlling the water flow rate of wet film pressing, characterized in that: The method comprises: Pre-fitting water flow control curves corresponding to a plurality of flexible plate samples; wherein the water flow control curve corresponding to each of the flexible plate samples is specifically a relationship curve between the water film thickness and the water flow corresponding to each of the flexible plate samples; Obtaining the product material number information of each flexible plate sample respectively, and determining the water flow rate corresponding to each flexible plate sample according to the product material number information of each flexible plate sample and the water flow rate control curve; and constructing a water flow rate query table according to the product material number information and the water flow rate of all the flexible plate samples; The target product material number information of the target flexible plate product is obtained, and according to the target product material number information, the target water flow corresponding to the target flexible plate product is queried from the water flow query table, and the target flexible plate product is wet-laminated according to the target water flow.

2. The method according to claim 1, characterized in that The pre-fitting of water flow control curves corresponding to a variety of flexible plate samples includes: Pre-acquire a plurality of water flow control parameters corresponding to each of the flexible plate samples; Select any one of the flexible plate samples, and perform film pressing on the selected flexible plate sample according to each corresponding water flow control parameter, and measure multiple water film thicknesses of the selected flexible plate sample under each water flow control parameter according to a preset water film measurement time; For the selected flexible plate sample, all water film thicknesses under any of the water flow control parameters are selected to determine whether all water film thicknesses of the selected flexible plate sample under the selected water flow control parameters are valid; if so, the average water film thickness of the selected flexible plate sample under the selected water flow control parameters is calculated; otherwise, all water film thicknesses of the selected flexible plate sample under the selected water flow control parameters are eliminated; According to the same method, it is respectively determined whether all water film thicknesses of the selected flexible plate sample under each water flow control parameter are effective; Performing curve fitting according to the average water film thickness of the selected flexible plate sample in all valid situations and the corresponding water flow control parameters to obtain the water flow control curve corresponding to the selected flexible plate sample; According to the same method, the water flow control curve corresponding to each flexible plate sample is fitted and obtained respectively.

3. The method according to claim 2, characterized in that Each of the water flow control parameters includes the corresponding water flow, water flow holding time and water film measurement times; Among them, the water flow rate is determined by the corresponding preset water flow rate control range and the preset water flow rate control step; the water flow rate holding time is determined by the corresponding number of water film measurements and the preset water film measurement time.

4. The method according to claim 3, characterized in that The determining whether all water film thicknesses of the selected flexible plate sample under the selected water flow control parameters are effective includes: Calculating a uniformity index of the selected flexible plate sample at the selected water flow rate according to all water film thicknesses of the selected flexible plate sample at the selected water flow rate; Determine whether the uniformity index of the selected flexible plate sample under the selected water flow rate meets the uniformity criterion. If so, determine that all water film thicknesses of the selected flexible plate sample under the selected water flow rate control parameters are valid; otherwise, determine that all water film thicknesses of the selected flexible plate sample under the selected water flow rate control parameters are invalid.

5. The method according to claim 4, characterized in that The calculating, based on all water film thicknesses of the selected flexible plate sample at the selected water flow rate, a uniformity index of the selected flexible plate sample at the selected water flow rate comprises: Calculating the average water film thickness corresponding to all water film thicknesses of the selected flexible plate sample at the selected water flow rate; Calculate the corresponding uniformity index according to the average water film thickness and the maximum water film thickness and the minimum water film thickness of all water film thicknesses of the selected flexible plate sample under the selected water flow rate; The specific formula for calculating the uniformity index is: Wherein, U is the uniformity index of the selected flexible plate sample under the selected water flow rate, d max and d min are the maximum water film thickness and the minimum water film thickness of all water film thicknesses of the selected flexible plate sample under the selected water flow rate, d ave It is the average water film thickness corresponding to all water film thicknesses of the selected flexible plate sample under the selected water flow rate.

6. The method according to claim 5, characterized in that The uniformity criterion is specifically: U≥a, where a is a preset uniformity threshold.

7. The method according to claim 3, characterized in that The step of performing curve fitting according to the average water film thickness of the selected flexible plate sample in all valid situations and the corresponding water flow control parameter to obtain the water flow control curve corresponding to the selected flexible plate sample includes: The average water film thickness is used as the output variable, and the water flow rate is used as the input variable. Curve fitting is performed based on the average water film thickness of the selected flexible plate sample in all valid cases and the corresponding water flow rate to obtain the water flow control curve corresponding to the selected flexible plate sample.

8. The method according to claim 7, characterized in that The number of the average water film thickness and the corresponding number of the water flow rates of each flexible plate sample in all valid cases are greater than or equal to 3.

9. The method according to any one of claims 1 to 8, characterized in that: Determining the water flow corresponding to each flexible plate sample according to the product material number information of each flexible plate sample and the water flow control curve includes: According to the product material number information of each flexible plate sample, respectively determine the dry film type corresponding to each flexible plate sample; According to the dry film type of each flexible plate sample, respectively determine the water film thickness corresponding to each flexible plate sample; The water film thickness corresponding to each of the flexible plate samples is substituted into the corresponding water flow controller curve to obtain the water flow corresponding to each of the flexible plate samples.

10. A wet film pressing water flow automatic control system, characterized in that: Applied to the method for automatically controlling the water flow rate of wet film pressing as claimed in any one of claims 1 to 9, the system comprises: A curve fitting module is used to pre-fit water flow control curves corresponding to a plurality of flexible plate samples; wherein the water flow control curve corresponding to each of the flexible plate samples is specifically a relationship curve between the water film thickness and the water flow corresponding to each of the flexible plate samples; A query table establishment module is used to obtain the product material number information of each flexible plate sample respectively, and determine the water flow corresponding to each flexible plate sample according to the product material number information of each flexible plate sample and the water flow control curve; and construct a water flow query table according to the product material number information and the water flow of all the flexible plate samples; A water flow query module is used to obtain target product material number information of a target flexible plate product, and query the target water flow corresponding to the target flexible plate product from the water flow query table according to the target product material number information; The film pressing module is regulated and controlled, and is used for wet-pressing the target flexible plate product according to the target water flow rate.

11. A wet film pressing water flow automatic control device, characterized in that: It comprises a processor, a memory and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed, the method steps in the method for automatic control of wet film pressing water flow rate as described in any one of claims 1 to 9 are implemented.

12. A computer storage medium, characterized in that: The computer storage medium comprises: at least one instruction, which, when executed, implements the method steps in the method for automatic control of wet film pressing water flow as claimed in any one of claims 1 to 9.

Images