Release film replacement method, apparatus, and media applied to additive manufacturing equipment

Abstract

The application provides a release film replacement method applied to an additive manufacturing device, a computer device and a computer readable storage medium, and relates to the technical field of additive manufacturing. The method comprises the following steps: obtaining a preset operation performed in an additive manufacturing process, and obtaining release film life data consumed by the preset operation; determining current release film life data according to the release film remaining life data and the release film life data consumed by the preset operation; in the case that the current release film life data meets preset conditions, updating the release film remaining life data by using the current release film life data; and in the case that the current release film life data does not meet the preset conditions, triggering a replacement instruction for indicating replacement of the release film. The embodiment of the application can realize estimation of current life data of the release film, and avoid the risk of 3D model printing failure due to exhaustion of the release film life during printing.

Description

Technical Field

[0001] This application relates to the field of additive manufacturing technology, and in particular to a method for replacing release film in additive manufacturing equipment, a computer device, and a computer-readable storage medium. Background Technology

[0002] In recent years, additive manufacturing equipment has been developing at an astonishing pace. It uses a digital model file as a basis, employing special waxes, powdered metals, or plastics as adhesives to create three-dimensional objects by printing layers of these adhesives. Photopolymerization is a relatively mature additive manufacturing technology. Photopolymerization systems use photosensitive resin as a raw material, and under a fixed temperature and humidity environment, the resin is molded using low-power ultraviolet light, enabling the rapid generation of high-precision, complex models.

[0003] In the process of photopolymer printing, release film materials are used to separate the photosensitive resin during the curing process from the cured resin. Release film is a type of fluoropolymer material, and its properties such as light transmittance, temperature resistance, abrasion resistance, and non-stick properties make it an indispensable auxiliary material in additive manufacturing. However, users often cannot predict when to replace the release film when using a photopolymer printer. If the release film reaches the end of its lifespan and is not replaced in time, there is a risk of model printing failure during the printing process. Summary of the Invention

[0004] In view of the above problems, this application is made to provide a release film replacement method, computer equipment, and computer-readable storage medium applied to additive manufacturing equipment that overcomes or at least partially solves the above problems, thereby addressing the technical problem of difficulty in predicting the timing of release film replacement. The technical solution is as follows:

[0005] In a first aspect, a method for replacing release film in additive manufacturing equipment is provided, the method comprising:

[0006] Acquire preset operations performed during the additive manufacturing process, and acquire release film lifetime data consumed by the preset operations;

[0007] The current release film lifespan is determined based on the remaining lifespan data of the release film and the lifespan data of the release film consumed by the preset operation.

[0008] If the current release film lifespan data meets the preset conditions, the remaining release film lifespan data is updated using the current release film lifespan data;

[0009] If the current release film life data does not meet the preset conditions, a replacement command is triggered to indicate the replacement of the release film.

[0010] In one possible implementation, the preset operation includes a slice layer curing and printing operation; acquiring the release film lifetime data consumed by the preset operation includes:

[0011] Based on the printing parameters corresponding to the curing and printing operation of the slice layer, and the preset printing parameters, the release film consumption coefficient is determined. The printing parameters include the exposure area of ​​the slice layer, the exposure time, the exposure power, and / or the slice image similarity. The slice image similarity is the similarity between the slice image corresponding to the curing and printing operation of the slice layer and the slice image corresponding to the curing and printing operation of the previous slice layer.

[0012] Based on the release film consumption coefficient and the release film life consumption value, the release film life consumption data of the preset operation is determined, and the release film life consumption value corresponds to the preset printing parameters.

[0013] In one possible implementation, the printing parameters include the exposure area of ​​the slice layer, the exposure time, the exposure power, and the slice image similarity; the release film consumption coefficient includes a first release film consumption coefficient, a second release film consumption coefficient, a third release film consumption coefficient, and a fourth release film consumption coefficient; the release film consumption coefficient is determined based on the printing parameters corresponding to the slice layer curing printing operation and preset printing parameters, including:

[0014] The first release film consumption coefficient is determined based on the slice layer exposure area corresponding to the slice layer curing and printing operation and the preset slice layer exposure area.

[0015] The consumption coefficient of the second release film is determined based on the exposure time corresponding to the curing and printing operation of the sliced ​​layer and the preset exposure time.

[0016] The consumption coefficient of the third release film is determined based on the exposure power corresponding to the curing and printing operation of the slice layer and the preset exposure power.

[0017] When the similarity of the sliced ​​images is greater than or equal to a preset similarity, the first value is determined as the fourth release film consumption coefficient; when the similarity of the sliced ​​images is less than the preset similarity, the second value is determined as the fourth release film consumption coefficient.

[0018] In one possible implementation, before determining the current release film lifetime data based on the remaining release film lifetime data and the release film lifetime data consumed by the preset operation, the method further includes:

[0019] Obtain the evaluation model slice file, and perform layer-by-layer curing and printing according to the evaluation model slice file in an additive manufacturing equipment with an unused release film installed, until the release film of the additive manufacturing equipment is damaged;

[0020] The total number of times the slice layer curing and printing operation was performed based on the evaluation model slice file before the release film of the additive manufacturing equipment was damaged was counted.

[0021] The total number of executions is used as the initial data for the remaining lifetime of the release film.

[0022] In one possible implementation, the evaluation model slice file includes a model slice file whose average slice layer exposure area is greater than a first preset threshold, average exposure time is greater than a second preset threshold, average exposure power is greater than a third preset threshold, and / or average slice image similarity is greater than a fourth preset threshold.

[0023] Alternatively, the evaluation slice model may include a model slice file with an average slice layer exposure area of ​​a preset slice layer exposure area, an average exposure time of a preset exposure time, an average exposure power of a preset exposure power, and / or an average slice image similarity of a preset similarity.

[0024] In one possible implementation, after determining the current release film lifetime data based on the remaining release film lifetime data and the release film lifetime data consumed by the preset operation, the method further includes:

[0025] Obtain the printable portion of the model file to be printed, and determine the preset operations and corresponding number of operations required to complete printing the model file based on the printable portion;

[0026] Determine the number of release film lifetime cycles required based on the preset operations to be performed and the corresponding number of executions.

[0027] When the current release film life data is greater than or equal to the number of release film life cycles required, it is determined that the current release film life data meets the preset condition;

[0028] When the current release film lifespan data is less than the number of release film lifespans required, it is determined that the current release film lifespan data does not meet the preset conditions.

[0029] In one possible implementation, the preset operation includes a slice layer curing and printing operation; the required number of release film lifetimes is determined based on the preset operation to be performed and the corresponding number of executions, including:

[0030] Based on the printing parameters corresponding to the required slice layer curing and printing operation, and the preset printing parameters, the release film consumption coefficient is determined. The printing parameters include the slice layer exposure area, exposure time, exposure power, and / or slice image similarity. The slice image similarity is the similarity between the slice image corresponding to the slice layer curing and printing operation and the slice image corresponding to the previous slice layer curing and printing operation.

[0031] Based on the release film consumption coefficient and the release film lifetime consumption value, determine the number of release film lifetimes required.

[0032] In one possible implementation, after triggering a replacement command to indicate the replacement of the release film, the method further includes:

[0033] In response to the replacement command, a reminder is displayed on the interactive display screen of the additive manufacturing equipment to prompt the user to replace the release film;

[0034] In response to the replacement command, an alarm signal is issued through the additive manufacturing equipment to remind the user to replace the release film;

[0035] In response to the replacement instruction, suspend the additive manufacturing process; and / or

[0036] In response to the replacement instruction, data is sent to the mobile terminal via the additive manufacturing equipment to display a reminder on the mobile terminal to prompt the user to replace the release film;

[0037] The acquisition of preset operations performed during the additive manufacturing process, and the acquisition of release film lifetime data consumed by the preset operations, includes:

[0038] In response to preset instructions, the system acquires preset operations performed during the additive manufacturing process and acquires release film lifetime data consumed by the preset operations. The preset instructions include instructions to print the first layer, pause printing, cancel printing, complete printing, alarm triggered by sudden power loss, power-on, restart, and / or release film remaining lifetime acquisition instructions.

[0039] Secondly, a release film replacement device for additive manufacturing equipment is provided, the device comprising:

[0040] The acquisition unit is used to acquire preset operations performed during the additive manufacturing process and to acquire release film lifetime data consumed by the preset operations.

[0041] The first determining unit is used to determine the current release film lifetime data based on the remaining lifetime data of the release film and the lifetime data of the release film consumed by the preset operation.

[0042] The generation unit is used to update the remaining life data of the release film using the current release film life data when the current release film life data meets the preset conditions.

[0043] The replacement unit is used to trigger a replacement command to indicate the replacement of the release film when the current release film life data does not meet the preset conditions.

[0044] In one possible implementation, the preset operation includes a slice layer curing and printing operation; the acquisition unit is specifically used to determine a release film consumption coefficient based on the printing parameters corresponding to the slice layer curing and printing operation and preset printing parameters, wherein the printing parameters include the slice layer exposure area, exposure time, exposure power, and / or slice image similarity, and the slice image similarity is the similarity between the slice image corresponding to the slice layer curing and printing operation and the slice image corresponding to the previous slice layer curing and printing operation; and to determine the release film lifetime data consumed by the preset operation based on the release film consumption coefficient and the release film lifetime consumption value, wherein the release film lifetime consumption value corresponds to the preset printing parameters.

[0045] In one possible implementation, the printing parameters include the exposure area of ​​the slice layer, the exposure time, the exposure power, and the slice image similarity; the release film consumption coefficient includes a first release film consumption coefficient, a second release film consumption coefficient, a third release film consumption coefficient, and a fourth release film consumption coefficient; the acquisition unit is further configured to determine the first release film consumption coefficient based on the exposure area of ​​the slice layer corresponding to the slice layer curing printing operation and a preset slice layer exposure area; determine the second release film consumption coefficient based on the exposure time corresponding to the slice layer curing printing operation and a preset exposure time; determine the third release film consumption coefficient based on the exposure power corresponding to the slice layer curing printing operation and a preset exposure power; when the slice image similarity is greater than or equal to a preset similarity, a first value is determined as the fourth release film consumption coefficient; when the slice image similarity is less than a preset similarity, a second value is determined as the fourth release film consumption coefficient.

[0046] In one possible implementation, the acquisition unit is further configured to, before determining the current release film life data based on the remaining release film life data and the release film life data consumed by the preset operation, acquire an evaluation model slice file, perform layer-by-layer curing printing on an additive manufacturing equipment with an unused release film installed based on the evaluation model slice file, until the release film of the additive manufacturing equipment is damaged; count the total number of times the slice layer curing printing operation based on the evaluation model slice file is executed before the release film of the additive manufacturing equipment is damaged; and use the total number of executions as the initial remaining release film life data.

[0047] In one possible implementation, the evaluation model slice file includes a model slice file whose average slice layer exposure area is greater than a first preset threshold, average exposure time is greater than a second preset threshold, average exposure power is greater than a third preset threshold, and / or average slice image similarity is greater than a fourth preset threshold.

[0048] Alternatively, the evaluation slice model may include a model slice file with an average slice layer exposure area of ​​a preset slice layer exposure area, an average exposure time of a preset exposure time, an average exposure power of a preset exposure power, and / or an average slice image similarity of a preset similarity.

[0049] In one possible implementation, the device further includes:

[0050] The second determining unit is used to determine the current release film life data based on the remaining release film life data and the release film life data consumed by the preset operation, then obtain the part of the model file to be printed, and determine the preset operation to be performed and the corresponding number of times to be performed to complete the printing of the model file based on the part to be printed.

[0051] The third determining unit is used to determine the number of release film lifetimes required based on the preset operation to be performed and the corresponding number of times it is performed.

[0052] The determination unit is used to determine that the current release film life data meets the preset conditions when the current release film life data is greater than or equal to the number of release film lifes required.

[0053] The determination unit is further configured to determine that the current release film life data does not meet the preset conditions when the current release film life data is less than the number of release film life cycles required.

[0054] In one possible implementation, the preset operation includes a slice layer curing and printing operation; the third determining unit is specifically used to determine a release film consumption coefficient based on the printing parameters corresponding to the required slice layer curing and printing operation and preset printing parameters, wherein the printing parameters include the slice layer exposure area, exposure time, exposure power, and / or slice image similarity; the slice image similarity is the similarity between the slice image corresponding to the slice layer curing and printing operation and the slice image corresponding to the previous slice layer curing and printing operation; and to determine the number of release film lifetimes to be consumed based on the release film consumption coefficient and the release film lifetime consumption value.

[0055] In one possible implementation, the device further includes:

[0056] The display unit is configured to, in response to a replacement instruction indicating the replacement of the release film, display a reminder on the interactive display screen of the additive manufacturing equipment to prompt the user to replace the release film after the replacement instruction is triggered.

[0057] The prompting unit is used to respond to the replacement command by issuing an alarm signal through the additive manufacturing equipment to prompt the user to replace the release film;

[0058] Stop unit, used to suspend the additive manufacturing process in response to the replacement command; and / or

[0059] In response to the replacement instruction, data is sent to the mobile terminal via the additive manufacturing equipment to display a reminder on the mobile terminal to prompt the user to replace the release film;

[0060] The acquisition unit is further configured to respond to preset instructions, acquire preset operations performed during additive manufacturing, and acquire release film lifetime data consumed by the preset operations. The preset instructions include instructions to print the first layer, pause printing, cancel printing, complete printing, alarm triggered by sudden power loss, power-on, restart, and / or release film remaining lifetime acquisition instructions.

[0061] Thirdly, a computer device is provided, the computer device including a memory and a processor, the memory storing a computer program, characterized in that, when the processor executes the computer program, it executes the release film replacement method for additive manufacturing equipment as described in any of the above embodiments.

[0062] Fourthly, a computer-readable storage medium is provided, wherein a computer program is stored therein, wherein the computer program is configured to execute, at runtime, the release film replacement method for additive manufacturing equipment as described in any of the above embodiments.

[0063] By employing the above technical solution, the release film replacement method, device, and readable storage medium provided in this application for additive manufacturing equipment acquire preset operations performed during the additive manufacturing process and acquire release film lifetime data consumed by the preset operations. Based on the remaining release film lifetime data and the release film lifetime data consumed by the preset operations, the current release film lifetime data is determined. If the current release film lifetime data meets preset conditions, the remaining release film lifetime data is updated using the current release film lifetime data. If the current release film lifetime data does not meet preset conditions, a replacement command for indicating release film replacement is triggered. Therefore, during the additive manufacturing process, the current lifespan of the release film can be accurately estimated using the release film lifetime data consumed by preset operations and the remaining release film lifetime data. This allows for prompting the replacement of the release film via a replacement command before the remaining lifespan is exhausted, thus helping to avoid the risk of 3D model printing failure due to release film lifetime exhaustion during additive manufacturing. Attached Figure Description

[0064] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below.

[0065] Figure 1 A schematic flowchart of a release film replacement method for additive manufacturing equipment according to an embodiment of this application is shown.

[0066] Figure 2 A flowchart illustrating a release film replacement process for an additive manufacturing equipment according to an embodiment of this application is shown.

[0067] Figure 3 A schematic diagram of the modular structure of a computer device according to an embodiment of this application is shown. Detailed Implementation

[0068] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0069] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the term "comprising" and its variations should be interpreted as open-ended terms meaning "including but not limited to."

[0070] On the one hand, embodiments of this application provide a release film replacement method for additive manufacturing equipment, which can solve the technical problem of difficulty in predicting the timing of release film replacement. This allows users to be prompted to replace the release film before its lifespan is exhausted during 3D printing, thus avoiding the risk of 3D model printing failure. For example... Figure 1 As shown, the method may include the following steps S101, S102, S103a and S103b.

[0071] S101. Obtain the preset operation performed during the additive manufacturing process, and obtain the release film lifetime data consumed by the preset operation.

[0072] The preset operations may include operations such as slicing layer curing and printing, or other operations that may damage the release film. For example, the preset operations may also include detecting that the release film has been pressed; for instance, pressing on the release film significantly reduces its lifespan, resulting in a higher waste of release film lifespan data. As another example, the preset operations may include a self-check operation; during machine self-checks, exposure also causes some exposure aging to the release film, thus also reducing its lifespan.

[0073] The slice layer curing operation is an operation that exposes and cures slice layers of a model. For example, it can be used to expose, cure, and release the first printed layer of a model, or to expose, cure, and release the middle layers of a model.

[0074] Specifically, in the process of obtaining the release film lifetime data consumed by the preset operation, considering that there are many factors affecting the release film lifetime data consumed in the additive manufacturing process, we can determine the different factors that may consume the release film lifetime data of the preset operation and the consumption coefficients corresponding to the different factors, calculate the release film lifetime data consumed by the different factors in 3D printing, and summarize the release film lifetime data consumed by the different factors in 3D printing to obtain the release film lifetime data consumed by the preset operation.

[0075] In some embodiments, acquiring preset operations performed during the additive manufacturing process and acquiring release film lifetime data consumed by the preset operations may include: in response to a preset instruction, acquiring preset operations performed during the additive manufacturing process and acquiring release film lifetime data consumed by the preset operations. The preset instruction may include one or more of the following: a first-layer printing instruction, a pause printing instruction, a cancel printing instruction, a printing completion instruction, an alarm instruction triggered by a sudden power loss, a power-on instruction, a restart instruction, and a release film remaining lifetime acquisition instruction. Specifically, the first-layer printing instruction is used to instruct the exposure, curing, and release of the first printed layer of the model; the pause printing instruction is used to instruct the suspension of the additive manufacturing process; the cancel printing instruction is used to instruct the cancellation of the current model printing; the printing completion instruction is triggered upon detecting the completion of the current model printing; the alarm instruction triggered by a sudden power loss is an alarm instruction triggered by a sudden power loss of the equipment or a component; the power-on instruction is an instruction triggered by powering on the equipment or a component; the restart instruction is an instruction used to instruct the equipment to restart; and the release film remaining lifetime acquisition instruction is an instruction used to acquire release film remaining lifetime data.

[0076] S102. Determine the current release film life data based on the remaining life data of the release film and the life data of the release film consumed by the preset operation.

[0077] Specifically, the machine reads the remaining lifespan data of the release film once when it is powered on, or it can retrieve the remaining lifespan data of the release film before determining the current lifespan data of the release film. The remaining lifespan data of the release film can be readable data stored in the memory, while the current lifespan data of the release film is the currently estimated remaining lifespan data of the release film.

[0078] In this way, by acquiring the preset operations performed during the additive manufacturing process and the release film life data consumed by the preset operations, and then determining the current release film life data based on the remaining release film life data and the release film life data consumed by the preset operations, it is possible to accurately predict the current release film life data after the preset operations have been performed.

[0079] In some embodiments, in response to the execution of a preset operation, the preset operation performed during the additive manufacturing process can be acquired, along with the release film lifetime data consumed by the preset operation. Then, based on the remaining release film lifetime data and the release film lifetime data consumed by the preset operation, the current release film lifetime data can be determined. In some embodiments, in response to a preset instruction, the preset operations performed during the additive manufacturing process from the last estimated current release film lifetime data to the present can be acquired, along with the release film lifetime data consumed by the preset operations. For example, the preset operation could be a single slice layer curing and printing operation, multiple slice layer curing and printing operations, or other operations that might damage the release film. Specifically, a single slice layer curing and printing operation could be a single-layer slice layer curing and printing operation.

[0080] In some embodiments, step S102, which determines the current release film lifetime data based on the remaining lifetime data of the release film and the lifetime data of the release film consumed by the preset operation, may include:

[0081] The current release film lifespan is determined based on the remaining lifespan data of the release film, the number of times the preset operation is executed, and the release film lifespan data consumed by the preset operation.

[0082] It is understandable that each preset operation performed during additive manufacturing consumes some release film lifetime data. Therefore, by determining the current release film lifetime data based on the remaining release film lifetime data, the number of times the preset operation is performed, and the release film lifetime data consumed by the preset operation, the current release film lifetime data after a certain number of preset operations can be reasonably and accurately determined.

[0083] It should be noted that during the first print run of the additive manufacturing equipment immediately after replacing the release film, the release film has not yet suffered any wear. At this time, the remaining lifespan of the release film can be the preset release film lifespan threshold. This release film lifespan threshold characterizes the lifespan of the release film under conditions of no wear. Alternatively, this release film lifespan threshold can be set by the factory system default or by the user.

[0084] To facilitate the reading of the remaining lifespan data of the release film, the release film lifespan threshold can be stored in a readable storage device when initially setting the release film lifespan threshold. When the remaining lifespan data of the release film needs to be obtained later, it can be read from the readable storage device.

[0085] S103a. If the current release film life data meets the preset conditions, update the remaining life data of the release film using the current release film life data.

[0086] S103b: If the current release film life data does not meet the preset conditions, a replacement command for indicating the replacement of the release film is triggered.

[0087] Specifically, updating the remaining release film lifespan data using the current release film lifespan data can be achieved by directly using the current release film lifespan data value as the remaining release film lifespan data value. Alternatively, the current release film lifespan data value can be processed and then used as the remaining release film lifespan data value. For example, the data processing could be data accuracy verification; that is, if the current release film lifespan data value deviates from the normal range by more than a preset deviation threshold, the current release film lifespan data is re-determined through step S102. Another example is data computation processing.

[0088] The preset condition can be whether the current release film lifetime data is sufficient to support the preset operations required to complete the printing of the model to be printed, or whether the current release film lifetime data is lower than a set minimum lifetime threshold. Specifically, the release film lifetime data can be determined by the slice layer information of the slice file of the model to be printed. For example, if the unprinted layers of the model to be printed are 5, and the current release film lifetime data indicates the lifetime data sufficient to print 6 printing layers of the model, then the current model lifetime data is sufficient to support the preset operations required to complete the printing of the model. In some embodiments, the determination of whether the preset condition is met can be made using the following steps S104, S105, S106a, and S106b.

[0089] Understandably, if the current release film lifespan data meets the preset conditions, it means the release film is still sufficient to support the preset operations required to complete the printing of the model to be printed. In this case, the current release film lifespan data can be used to update the remaining release film lifespan data, and subsequently, the remaining release film lifespan data can be used to calculate the current release film lifespan data after the printing operation. However, if the current release film lifespan data does not meet the preset conditions, it means the release film is no longer sufficient to support the preset operations required to complete the printing of the model to be printed. In this case, a replacement command can be triggered to prompt the user to replace the release film in time to avoid the risk of model printing failure. At the same time, the current release film lifespan data will also be used to update the remaining release film lifespan data.

[0090] In some implementations, the replacement instruction can specifically be used to stop printing on the machine and display a pop-up prompt, or it can be used to send a message prompt to the mobile terminal via a cloud server, or it can be used to automatically replace the release film.

[0091] The release film replacement method for additive manufacturing equipment provided in this application obtains preset operations performed during the additive manufacturing process and the release film lifespan data consumed by these preset operations. Based on the remaining release film lifespan data and the release film lifespan data consumed by the preset operations, the current release film lifespan data is determined. If the current release film lifespan data meets preset conditions, the remaining release film lifespan data is updated using the current release film lifespan data. If the current release film lifespan data does not meet the preset conditions, a replacement command is triggered to indicate the replacement of the release film. Therefore, during the additive manufacturing process, the current lifespan data of the release film can be accurately estimated using the release film lifespan data consumed by preset operations and the remaining release film lifespan data. This allows for prompting the replacement of the release film before its remaining lifespan is exhausted, thus helping to avoid the risk of 3D model printing failure due to the exhaustion of the release film lifespan during additive manufacturing.

[0092] In some implementations, if the current release film lifespan data does not meet the preset conditions, the current release film lifespan data will be used to update the remaining release film lifespan data. The replacement instruction may include the updated remaining release film lifespan data, so that when a replacement instruction is used as a reminder, the latest remaining release film lifespan data can be displayed intuitively on the interactive screen.

[0093] As one implementation method in this embodiment, the preset operation includes the slice layer curing and printing operation; specifically, in the process of obtaining the release film lifetime data consumed by the preset operation, the following steps S101-1 and S101-2 may be included.

[0094] S101-1. Determine the release film consumption coefficient based on the printing parameters corresponding to the curing and printing operation of the sliced ​​layer and the preset printing parameters.

[0095] The printing parameters include the slice layer exposure area, exposure time, exposure power, and / or slice image similarity. Slice image similarity is the similarity between the slice image corresponding to the slice layer curing printing operation and the slice image corresponding to the previous slice layer curing printing operation. The slice layer exposure area is the area of ​​the exposed and cured region of the slice image corresponding to the slice layer curing printing operation. A larger exposed and cured region indicates more severe exposure aging damage to the release film. Exposure time reflects the exposure duration required to cure each slice image; a longer exposure time leads to more severe damage to the release film. Exposure power reflects the energy intensity during exposure; higher energy leads to more severe damage to the release film. Slice image similarity characterizes the similarity between two adjacent slice images printed consecutively. Higher similarity indicates a higher degree of continuous exposure of the same area of ​​the release film, resulting in more severe damage to the release film. Thus, by determining the release film consumption coefficient based on the printing parameters corresponding to the slice layer curing printing operation and the preset printing parameters, the degree of damage to the release film can be reasonably and accurately characterized through the release film consumption coefficient. It can be understood that the damage to the release film, as mentioned above, is relatively small for each exposure curing, but after multiple accumulations, it will cause significant damage to the release film. Specifically, the preset printing parameters can be default printing parameters, including default slice layer exposure area, default exposure time, default exposure power, and / or default slice image similarity. Specific preset printing parameters can be obtained from the slice curing printing operation file. In some embodiments, the preset printing parameters can also be user-defined settings or empirical values ​​selected for testing.

[0096] In this embodiment, the release film consumption coefficient includes a first release film consumption coefficient, a second release film consumption coefficient, a third release film consumption coefficient, and a fourth release film consumption coefficient. Specifically, in the process of determining the release film consumption coefficient based on the printing parameters corresponding to the slice layer curing and printing operation and the preset printing parameters, the first release film consumption coefficient can be determined based on the slice layer exposure area corresponding to the slice layer curing and printing operation and the preset slice layer exposure area; the second release film consumption coefficient can be determined based on the exposure time corresponding to the slice layer curing and printing operation and the preset exposure time; and the third release film consumption coefficient can be determined based on the exposure power corresponding to the slice layer curing and printing operation and the preset exposure power. When the slice image similarity is greater than or equal to the preset similarity, the first value is determined as the fourth release film consumption coefficient; when the slice image similarity is less than the preset similarity, the second value is determined as the fourth release film consumption coefficient.

[0097] In some embodiments, the printing parameters may also include one or more influencing factors such as slice layer thickness, resin material to be printed, release film material, and printer model. Specifically, determining the release film consumption coefficient based on the printing parameters corresponding to the slice layer curing printing operation and preset printing parameters may further include one or more of the following steps: determining the fifth release film consumption coefficient based on the slice layer thickness corresponding to the slice layer curing printing operation and preset slice layer thickness; determining the sixth release film consumption coefficient based on the parameters of the resin material to be printed corresponding to the slice layer curing printing operation and preset resin material parameters; determining the seventh release film consumption coefficient based on the parameters of the release film material corresponding to the slice layer curing printing operation and preset release film material parameters; and determining the eighth release film consumption coefficient based on the parameters of the printer model corresponding to the slice layer curing printing operation and preset printer model parameters. Similarly, the printing parameters may also include other printing-related parameters that can affect the release film lifespan, thus facilitating accurate and reasonable estimation of the release film lifespan.

[0098] S101-2. Determine the release film lifespan data consumed by the preset operation based on the release film consumption coefficient and the release film lifespan consumption value.

[0099] The release film life consumption value can be a preset value, such as 1, 1.1, 1.2, 1.5, 2, etc.

[0100] Alternatively, the release film lifespan consumption value corresponds to the preset printing parameters. That is, the release film lifespan consumption value can be a value corresponding to the preset printing parameters. Specifically, the ratio of the preset printing parameters to the default printing parameters can be obtained first, and the release film lifespan consumption value can be determined based on the ratio. The release film lifespan consumption value is positively correlated with the ratio. For example, when the preset printing parameters are 1 times the default printing parameters, the release film lifespan consumption value is 1; when the preset printing parameters are 0.5 times the default printing parameters, the release film lifespan consumption value is 0.5; when the preset printing parameters are 2 times the default printing parameters, the release film lifespan consumption value is 2. Here, the default printing parameters are the printing parameters set by default at the factory. For example, the printing parameters include the slice layer exposure area, exposure time, and exposure power. If the preset slice layer exposure area is 1 times the default slice layer exposure area, the preset exposure time is 2 times the default exposure time, and the preset exposure power is 3 times the default exposure power, then the release film lifespan consumption value is 1*2*3 = 6.

[0101] For example, printing parameters may include one or more of the following: slice layer exposure area, exposure time, exposure power, and slice image similarity. In a specific embodiment, a preset operation may include a single slice layer curing printing operation, or a single preset operation may include multiple slice layer curing printing operations. For example, when a preset operation includes a single slice layer curing printing operation, the printing parameters include the slice layer exposure area, exposure time, exposure power, and slice image similarity of that single slice layer curing printing operation; when a preset operation includes multiple slice layer curing printing operations, the printing parameters include the average slice layer exposure area, average exposure time, average exposure power, and average slice image similarity of those multiple slice layer curing printing operations.

[0102] In a specific embodiment, for example, if a preset operation is a single-layer slice curing and printing operation, the release film lifetime data consumed in this preset operation can be determined using the following formula:

[0103] M = [X1 / X2] * [P1 / P2] * N * Z * A

[0104] Where A represents the release film lifetime consumption value, which can be 1, 1.1, 1.2, 1.5, 2, 3, 5, 10, etc., or A can be the number of slice layer curing and printing operations included in a preset operation. M represents the release film lifetime consumption data of this preset operation. X1 represents the exposure time of the slice layer curing and printing operations included in this preset operation, and X2 represents the preset exposure time set by the device or defined by the user. P1 represents the exposure power of the slice layer curing and printing operations included in this preset operation, and P2 represents the preset exposure power set by the device or defined by the user. N is a piecewise function; when S1 is less than or equal to S2, N is 1; when S1 is greater than S2, N is S1 / S2. Where S1 represents the slice layer exposure area of ​​the slice layer curing and printing operations included in this preset operation, and S2 represents the slice layer exposure area of ​​the slice layer curing and printing operations included in this preset operation. Z is a piecewise function. When B is greater than or equal to a preset similarity, Z is 2; when B is less than the preset similarity, Z is 1. Here, B is the similarity between the slice image corresponding to the slice layer curing and printing operation included in the preset operation and the slice image corresponding to the slice layer curing and printing operation preceding that slice layer. Specifically, the preset similarity can be set to 95%, 98%, 98.5%, 99%, 99.5%, 100%, etc., or any value between 95% and 100%.

[0105] In some implementations, the release film lifetime data consumed in this preset operation can also be determined using the following formula: M = A. Where A is the release film lifetime consumption value, which can be 1, 1.1, 1.2, 1.5, 2, 3, 5, 10, etc., or A can be the number of slice layer curing and printing operations included in one preset operation. Compared to the method in this embodiment that simply determines the consumed release film lifetime data based on the number of slice layer curing and printing layers, step S101-2 above can determine the release film lifetime data consumed in the preset operation based on the release film consumption coefficient and the release film lifetime consumption value. This makes the determination of the release film lifetime data consumed in the preset operation more reasonable and accurate, thereby achieving an accurate prediction of the current lifetime data of the release film, and thus an accurate prediction of the timing of release film replacement.

[0106] In some implementations, before determining the current release film lifespan based on the remaining release film lifespan data and the release film lifespan data consumed by preset operations, an evaluation model slice file can be obtained. Based on the evaluation model slice file, layer-by-layer curing and printing are performed in an additive manufacturing apparatus equipped with an unused release film until the release film of the additive manufacturing apparatus is damaged. The total number of times the slice layer curing and printing operations based on the evaluation model slice file are executed before the release film of the additive manufacturing apparatus is damaged is counted, and this total number of executions is used as the initial remaining release film lifespan data. Here, the unused release film is equivalent to a newly replaced, unprinted release film. Specifically, when the evaluation model slice file is printed once, the printing of the evaluation model slice file can be repeated until the release film of the additive manufacturing apparatus is damaged.

[0107] For example, the evaluation model slice file includes a model slice file where the average slice layer exposure area is greater than a first preset threshold, the average exposure time is greater than a second preset threshold, the average exposure power is greater than a third preset threshold, and / or the average slice image similarity is greater than a fourth preset threshold; or the evaluation slice model includes a model slice file where the average slice layer exposure area is a preset slice layer exposure area, the average exposure time is a preset exposure time, the average exposure power is a preset exposure power, and / or the average slice image similarity is a preset similarity. Specifically, the average slice layer exposure area is within a fluctuation range that includes the preset slice layer exposure area, which is also within the scope of this embodiment; the average exposure time is within a fluctuation range that includes the preset exposure time, which is also within the scope of this embodiment; the average exposure power is within a fluctuation range that includes the preset exposure power, which is also within the scope of this embodiment; and the average slice image similarity is within a fluctuation range that includes the preset slice image similarity, which is also within the scope of this embodiment. Here, model slice files with an average slice image similarity greater than the fourth preset threshold can be model slice files with a cylindrical shape, such as cubes, triangular prisms, cylinders, etc., or models whose majority of volume is cylindrical.

[0108] Understandably, to facilitate the calculation of the current release film life data, the default value can be used as the initial release film remaining life data. This default value can be the value initially set by the device or a value customized by the user.

[0109] In order to prompt the replacement of the release film before the release film life data is exhausted, the process of determining whether the current model life data is sufficient to support the preset operation required to complete the printing of the model to be printed may include the following steps S104, S105, S106a and S106b after determining the current release film life data based on the remaining release film life data and the release film life data consumed by the preset operation.

[0110] S104. Obtain the printable portion of the model file to be printed, and determine the preset operations and corresponding execution counts required to complete printing the model file based on the printable portion.

[0111] The "to be printed" portion refers to the remaining unprinted parts of the model to be printed, or the portion specified by the user. It should be noted that the "to be printed" portion can include multi-layer slice data. This allows the system to determine the preset operations to be performed and the corresponding number of executions based on the "to be printed" portion of the model file.

[0112] S105. Determine the number of release film lifetimes required based on the preset operations to be performed and the corresponding number of executions.

[0113] Because the model information corresponding to different slice files in the model file to be printed is different, each time a preset operation is performed on the part to be printed, different release film lifetimes will be lost. Specifically, the preset operation can be a slice layer curing operation. The model shape and pattern information of each slice file in the part to be printed can be extracted. Based on the printing parameters of each slice data, the release film lifetimes consumed by the preset operation are estimated. The release film lifetimes consumed by each slice file in the part to be printed are summed according to the corresponding execution number to obtain the required release film lifetimes.

[0114] Specifically, the release film consumption factor can be determined based on the printing parameters corresponding to the required slice layer curing and printing operation, as well as preset printing parameters. These printing parameters include the slice layer exposure area, exposure time, exposure power, and / or slice image similarity. The slice image similarity is the similarity between the slice image corresponding to the slice layer curing and printing operation and the slice image corresponding to the previous slice layer curing and printing operation. For example, the number of release film lifetimes required can be determined based on the release film consumption factor and the release film lifetime consumption value.

[0115] Thus, the number of release film lifetimes required can be determined based on the preset operations and corresponding execution counts required to complete the printing of the model file to be printed. For example, when printing a model to be printed needs to begin, or during the printing process of a certain model to be printed, the number of release film lifetimes required can be determined through steps S104 and S105, and then steps S106a and S106b can be used to determine whether the current release film lifetime data meets the preset conditions.

[0116] S106a. When the current release film life data is greater than or equal to the number of release film life cycles required, it is determined that the current release film life data meets the preset conditions.

[0117] S106b. When the current release film life data is less than the number of release film life cycles required, it is determined that the current release film life data does not meet the preset conditions.

[0118] In practical applications, to enable more flexible issuance of release film replacement commands, after triggering the replacement command indicating the replacement of the release film, one or more of the following actions can be performed in response to the replacement command:

[0119] The first method involves displaying a reminder on the interactive display screen of the additive manufacturing equipment to prompt the user to replace the release film. This allows for timely reminders to the user via screen prompts.

[0120] The second method involves using additive manufacturing equipment to send an alarm signal to remind the user to replace the release film. Specifically, the alarm signal includes, but is not limited to, audible and visual warnings and voice prompts. This allows for timely reminders to the user to replace the release film.

[0121] The third method: Pause the additive manufacturing process. This allows the additive manufacturing process to be paused when the current release film lifespan is less than the required number of release film lifespans. This enables the user to replace the release film in the cartridge in a timely manner, avoiding problems such as resin leakage and model printing failure caused by release film breakage during continued printing.

[0122] The fourth method involves sending data to a mobile terminal via additive manufacturing equipment to display a reminder on the mobile terminal prompting the user to replace the release film. The methods for sending data to the mobile terminal can include, but are not limited to, Bluetooth, Wi-Fi, and cloud server connections. This allows for timely reminders to the user to replace the release film on the mobile terminal, providing better timeliness.

[0123] On the other hand, based on the same inventive concept, embodiments of this application also provide a release film replacement device for additive manufacturing equipment, such as... Figure 2 As shown, the device includes: an acquisition unit 21, a first determination unit 22, a generation unit 23, and a replacement unit 24.

[0124] Acquisition unit 221 is used to acquire preset operations performed during the additive manufacturing process and acquire release film lifetime data consumed by the preset operations.

[0125] The first determining unit 22 is used to determine the current release film lifetime data based on the remaining lifetime data of the release film and the lifetime data of the release film consumed by the preset operation.

[0126] The generation unit 23 is used to update the remaining life data of the release film using the current release film life data when the current release film life data meets the preset conditions.

[0127] Replacement unit 24 is used to trigger a replacement command to indicate the replacement of the release film when the current release film life data does not meet the preset conditions.

[0128] In a specific application scenario, the preset operation includes a slice layer curing and printing operation; the acquisition unit 21 is specifically used to determine the release film consumption coefficient based on the printing parameters corresponding to the slice layer curing and printing operation and preset printing parameters. The printing parameters include the slice layer exposure area, exposure time, exposure power, and / or slice image similarity. The slice image similarity is the similarity between the slice image corresponding to the slice layer curing and printing operation and the slice image corresponding to the previous slice layer curing and printing operation. Based on the release film consumption coefficient and the release film lifetime consumption value, the release film lifetime consumption data consumed by the preset operation is determined. The release film lifetime consumption value corresponds to the preset printing parameters.

[0129] In specific application scenarios, the printing parameters include the exposure area of ​​the slice layer, the exposure time, the exposure power, and the slice image similarity; the release film consumption coefficient includes a first release film consumption coefficient, a second release film consumption coefficient, a third release film consumption coefficient, and a fourth release film consumption coefficient; the acquisition unit 21 is further configured to determine the first release film consumption coefficient based on the exposure area of ​​the slice layer corresponding to the slice layer curing printing operation and a preset slice layer exposure area; determine the second release film consumption coefficient based on the exposure time corresponding to the slice layer curing printing operation and a preset exposure time; determine the third release film consumption coefficient based on the exposure power corresponding to the slice layer curing printing operation and a preset exposure power; when the slice image similarity is greater than or equal to a preset similarity, the first value is determined as the fourth release film consumption coefficient; when the slice image similarity is less than a preset similarity, the second value is determined as the fourth release film consumption coefficient.

[0130] In a specific application scenario, the acquisition unit 21 is further configured to acquire an evaluation model slice file before determining the current release film life data based on the remaining release film life data and the release film life data consumed by the preset operation; perform layer-by-layer curing and printing on an additive manufacturing equipment with an unused release film installed according to the evaluation model slice file until the release film of the additive manufacturing equipment is damaged; count the total number of times the slice layer curing and printing operation based on the evaluation model slice file is performed before the release film of the additive manufacturing equipment is damaged; and use the total number of executions as the initial remaining release film life data.

[0131] In specific application scenarios, the evaluation model slice file includes model slice files with an average slice layer exposure area greater than a first preset threshold, an average exposure time greater than a second preset threshold, an average exposure power greater than a third preset threshold, and / or an average slice image similarity greater than a fourth preset threshold.

[0132] Alternatively, the evaluation slice model may include a model slice file with an average slice layer exposure area of ​​a preset slice layer exposure area, an average exposure time of a preset exposure time, an average exposure power of a preset exposure power, and / or an average slice image similarity of a preset similarity.

[0133] In specific application scenarios, the device further includes:

[0134] The second determining unit is used to determine the current release film life data based on the remaining release film life data and the release film life data consumed by the preset operation, then obtain the part of the model file to be printed, and determine the preset operation to be performed and the corresponding number of times to be performed to complete the printing of the model file based on the part to be printed.

[0135] The third determining unit is used to determine the number of release film lifetimes required based on the preset operation to be performed and the corresponding number of times it is performed.

[0136] The determination unit is used to determine that the current release film life data meets the preset conditions when the current release film life data is greater than or equal to the number of release film lifes required.

[0137] The determination unit is further configured to determine that the current release film life data does not meet the preset conditions when the current release film life data is less than the number of release film life cycles required.

[0138] In specific application scenarios, the preset operation includes a slice layer curing and printing operation; the third determining unit is specifically used to determine the release film consumption coefficient based on the printing parameters corresponding to the required slice layer curing and printing operation and the preset printing parameters. The printing parameters include the slice layer exposure area, exposure time, exposure power, and / or slice image similarity; the slice image similarity is the similarity between the slice image corresponding to the slice layer curing and printing operation and the slice image corresponding to the previous slice layer curing and printing operation; and to determine the number of release film lifetimes to be consumed based on the release film consumption coefficient and the release film lifetime consumption value.

[0139] In specific application scenarios, the device further includes:

[0140] The display unit is configured to, in response to a replacement instruction indicating the replacement of the release film, display a reminder on the interactive display screen of the additive manufacturing equipment to prompt the user to replace the release film after the replacement instruction is triggered.

[0141] The prompting unit is used to respond to the replacement command by issuing an alarm signal through the additive manufacturing equipment to prompt the user to replace the release film;

[0142] Stop unit, used to suspend the additive manufacturing process in response to the replacement command; and / or

[0143] In response to the replacement instruction, data is sent to the mobile terminal via the additive manufacturing equipment to display a reminder on the mobile terminal to prompt the user to replace the release film;

[0144] The acquisition unit is further configured to respond to preset instructions, acquire preset operations performed during additive manufacturing, and acquire release film lifetime data consumed by the preset operations. The preset instructions include instructions to print the first layer, pause printing, cancel printing, complete printing, alarm triggered by sudden power loss, power-on, restart, and / or release film remaining lifetime acquisition instructions.

[0145] Based on the same inventive concept, embodiments of this application also provide a computer-readable storage medium storing a computer program, wherein the computer program is configured to execute, at runtime, the release film replacement method for additive manufacturing equipment of any of the above embodiments.

[0146] Furthermore, embodiments of this application also provide a computer device, see [link to relevant documentation]. Figure 3 The diagram illustrates a modular structure of a computer device 30 provided in an embodiment of this application. It may include a memory 31 and a processor 32. The memory 31 stores a computer program, and the processor 32 executes the computer program to perform the release film replacement method for additive manufacturing equipment as described in any of the above embodiments.

[0147] In another aspect, embodiments of this application also provide a computer-readable storage medium storing a computer program, wherein the computer program is configured to execute, at runtime, the release film replacement method for additive manufacturing equipment as described in any of the above embodiments.

[0148] For descriptions of relevant parts of the computer equipment and computer-readable storage medium provided in this application, please refer to the detailed description of the corresponding part of the release film replacement method for additive manufacturing equipment provided in the embodiments of this application, which will not be repeated here.

[0149] Those skilled in the art will clearly understand that the specific working process of the systems, devices, and modules described above can be referred to the corresponding process in the foregoing method embodiments. For the sake of brevity, it will not be repeated here.

[0150] Those skilled in the art will understand that the technical solution of this application, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several program instructions to cause an electronic device (e.g., a personal computer, server, or network device) to execute all or part of the steps of the methods described in the embodiments of this application when running the program instructions. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, portable hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0151] Alternatively, all or part of the steps of the foregoing method embodiments can be implemented by hardware (such as electronic devices like personal computers, servers, or network devices) associated with program instructions. The program instructions can be stored in a computer-readable storage medium. When the program instructions are executed by the processor of the electronic device, the electronic device executes all or part of the steps of the methods described in the embodiments of this application.

[0152] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that within the spirit and principles of this application, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the corresponding technical solutions to leave the protection scope of this application.

Claims

1. A method for replacing release film in additive manufacturing equipment, characterized in that, The method includes: Acquire preset operations performed during the additive manufacturing process, and acquire release film lifetime data consumed by the preset operations; The current release film lifespan is determined based on the remaining lifespan data of the release film and the lifespan data of the release film consumed by the preset operation. If the current release film lifespan data meets the preset conditions, the remaining release film lifespan data is updated using the current release film lifespan data; If the current release film life data does not meet the preset conditions, a replacement command is triggered to indicate the replacement of the release film.

2. The method for replacing the release film according to claim 1, characterized in that, The preset operation includes the slice layer curing and printing operation; Obtaining the release film lifetime data consumed by the preset operation includes: Based on the printing parameters corresponding to the curing and printing operation of the slice layer, and the preset printing parameters, the release film consumption coefficient is determined. The printing parameters include the exposure area of ​​the slice layer, the exposure time, the exposure power, and / or the slice image similarity. The slice image similarity is the similarity between the slice image corresponding to the curing and printing operation of the slice layer and the slice image corresponding to the curing and printing operation of the previous slice layer. Based on the release film consumption coefficient and the release film life consumption value, the release film life consumption data of the preset operation is determined, and the release film life consumption value corresponds to the preset printing parameters.

3. The method for replacing the release film according to claim 2, characterized in that, The printing parameters include the exposure area of ​​the slice layer, the exposure time, the exposure power, and the slice image similarity; the release film consumption coefficient includes a first release film consumption coefficient, a second release film consumption coefficient, a third release film consumption coefficient, and a fourth release film consumption coefficient; Based on the printing parameters corresponding to the curing and printing operation of the sliced ​​layer, and the preset printing parameters, the release film consumption coefficient is determined, including: The first release film consumption coefficient is determined based on the slice layer exposure area corresponding to the slice layer curing and printing operation and the preset slice layer exposure area. The consumption coefficient of the second release film is determined based on the exposure time corresponding to the curing and printing operation of the sliced ​​layer and the preset exposure time. The consumption coefficient of the third release film is determined based on the exposure power corresponding to the curing and printing operation of the slice layer and the preset exposure power. When the similarity of the sliced ​​images is greater than or equal to a preset similarity, the first value is determined as the fourth release film consumption coefficient; when the similarity of the sliced ​​images is less than the preset similarity, the second value is determined as the fourth release film consumption coefficient.

4. The method for replacing the release film according to claim 3, characterized in that, Before determining the current release film lifetime data based on the remaining release film lifetime data and the release film lifetime data consumed by the preset operation, the method further includes: Obtain the evaluation model slice file, and perform layer-by-layer curing and printing according to the evaluation model slice file in an additive manufacturing equipment with an unused release film installed, until the release film of the additive manufacturing equipment is damaged; The total number of times the slice layer curing and printing operation was performed based on the evaluation model slice file before the release film of the additive manufacturing equipment was damaged was counted. The total number of executions is used as the initial data for the remaining lifetime of the release film.

5. The release film replacement method according to claim 4, characterized in that, The evaluation model slice file includes model slice files whose average slice layer exposure area is greater than a first preset threshold, average exposure time is greater than a second preset threshold, average exposure power is greater than a third preset threshold, and / or average slice image similarity is greater than a fourth preset threshold. Alternatively, the evaluation model slice file may include a model slice file with an average slice layer exposure area of ​​a preset slice layer exposure area, an average exposure time of a preset exposure time, an average exposure power of a preset exposure power, and / or an average slice image similarity of a preset similarity.

6. The method for replacing the release film according to claim 1, characterized in that, After determining the current release film lifetime data based on the remaining release film lifetime data and the release film lifetime data consumed by the preset operation, the method further includes: Obtain the printable portion of the model file to be printed, and determine the preset operations and corresponding number of operations required to complete printing the model file based on the printable portion; Determine the number of release film lifetime cycles required based on the preset operations to be performed and the corresponding number of executions. When the current release film life data is greater than or equal to the number of release film life cycles required, it is determined that the current release film life data meets the preset condition; When the current release film lifespan data is less than the number of release film lifespans required, it is determined that the current release film lifespan data does not meet the preset conditions.

7. The release film replacement method according to claim 6, characterized in that, The preset operation includes the slice layer curing and printing operation; Based on the preset operations to be performed and the corresponding number of executions, determine the number of release film lifetimes required, including: Based on the printing parameters corresponding to the required slice layer curing and printing operation, and the preset printing parameters, the release film consumption coefficient is determined. The printing parameters include the slice layer exposure area, exposure time, exposure power, and / or slice image similarity. The slice image similarity is the similarity between the slice image corresponding to the slice layer curing and printing operation and the slice image corresponding to the previous slice layer curing and printing operation. Based on the release film consumption coefficient and the release film lifetime consumption value, determine the number of release film lifetimes required.

8. The release film replacement method according to claim 1, characterized in that, After triggering a replacement command to indicate the replacement of the release film, the method further includes: In response to the replacement command, a reminder is displayed on the interactive display screen of the additive manufacturing equipment to prompt the user to replace the release film; In response to the replacement command, an alarm signal is issued through the additive manufacturing equipment to remind the user to replace the release film; In response to the replacement instruction, suspend the additive manufacturing process; and / or In response to the replacement instruction, data is sent to the mobile terminal via the additive manufacturing equipment to display a reminder on the mobile terminal to prompt the user to replace the release film; The acquisition of preset operations performed during the additive manufacturing process, and the acquisition of release film lifetime data consumed by the preset operations, includes: In response to preset instructions, the system acquires preset operations performed during the additive manufacturing process and acquires release film lifetime data consumed by the preset operations. The preset instructions include instructions to print the first layer, pause printing, cancel printing, complete printing, alarm triggered by sudden power loss, power-on, restart, and / or release film remaining lifetime acquisition instructions.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it performs the release film replacement method for additive manufacturing equipment as described in any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, wherein the computer program is configured to execute, at runtime, the release film replacement method for additive manufacturing equipment as described in any one of claims 1 to 8.

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