Cutting method and device for protective film

Abstract

The invention discloses a cutting method and device for a protective film. The method comprises the steps that current environment data, target film parameters corresponding to a target protective film and a target film cutting path are obtained; judging whether the target film hardness is out of a target preset film hardness threshold range or not; if yes, the hardness of the target protective film is processed, and the hardness of the target protective film is adjusted to be within the target preset film hardness threshold value range; judging whether a target film curved surface appears on an area, corresponding to the target film cutting path, of the target protective film or not; if yes, whether the target curvature is larger than or equal to a target preset curvature threshold value or not is judged; if yes, the target curvature of the target film curved surface is processed, and the target curvature of the target film curved surface is adjusted to be smaller than a target preset curvature threshold value; and cutting the target protective film according to the target film cutting path. The cutting device does not need to be completed manually, the cutting precision is high, and the problems of cutting distortion and the like caused by the hardness and deformation of the protective film are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of protective films, and in particular to a method and device for cutting protective films. Background Art

[0002] Protective films can be categorized by their intended use, including digital product films, automotive films, household films, and food preservation films. Materials have evolved over the years, from the earliest PP materials to the now-popular AR materials. Functionally, protective films are applied to the physical object to protect. Currently, the cutting of protective films is typically done manually. However, manual cutting is inefficient and costly, prone to errors, and results in low precision. Furthermore, existing machine cutting methods often cause distortion and other issues due to various deformations of the protective film and the cutting method. In practice, factors such as the force of the cutting blade, cutting speed, the elasticity of the protective film itself, and the complexity of the cutting path can cause wrinkles or deformation in the protective film, resulting in low precision and even unusable film. Summary of the Invention

[0003] Therefore, it is necessary to address the aforementioned issues and propose a method and device for cutting protective films to address the following issues in the prior art: Cutting protective films is typically done manually. However, manual cutting is inefficient and costly, prone to errors, and results in low precision. Furthermore, existing machine cutting methods often result in distortion and other issues in the cut protective film due to various deformations of the protective film and the cutting method.

[0004] The first technical solution of the embodiment of the present invention is: A method for cutting a protective film, comprising: after a target protective film to be cut is laid flat on a target cutting table, obtaining current environmental data, target film parameters corresponding to the target protective film, and a target film cutting path, wherein the environmental data comprises a target environmental temperature and a target environmental humidity, and the target film parameters comprise a target film material, a target film thickness, a target film hardness, and a target film elasticity; judging whether the target film hardness is outside a target preset film hardness threshold range, wherein when the target film hardness is outside the target preset film hardness threshold range, cutting will result in an uneven edge of the target protective film; if so, processing the hardness of the target protective film to obtain the target film; The hardness of the target protective film is adjusted to be within the target preset film hardness threshold range; determine whether a target film surface appears on the target protective film and the area corresponding to the target film cutting path; if so, determine whether the target curvature corresponding to the target film surface is greater than or equal to the target preset curvature threshold, wherein when the target curvature is greater than or equal to the target preset curvature threshold, the edge of the target protective film will be distorted after cutting; if so, process the target curvature of the target film surface and adjust the target curvature of the target film surface to be less than the target preset curvature threshold; cut the target protective film according to the target film cutting path.

[0005] The second technical solution of the embodiment of the present invention is: A protective film cutting device, comprising: a data acquisition module, for acquiring current environmental data, target film parameters corresponding to the target protective film, and a target film cutting path after the target protective film to be cut is laid flat on a target cutting table, wherein the environmental data includes a target environmental temperature and a target environmental humidity, and the target film parameters include a target film material, a target film thickness, a target film hardness, and a target film elasticity; a first judgment module, for judging whether the target film hardness is outside a target preset film hardness threshold range, wherein when the target film hardness is outside the target preset film hardness threshold range, the edge of the target protective film will be uneven after cutting; a hardness processing module, for processing the hardness of the target protective film when the target film hardness is outside the target preset film hardness threshold range, and adjusting the hardness of the target protective film to within the target preset film hardness threshold range. within the range; a second judgment module, used to judge whether a target film surface appears in the area corresponding to the target protective film and the target film cutting path; a third judgment module, used to judge whether the target curvature corresponding to the target film surface is greater than or equal to the target preset curvature threshold when the target film surface appears in the area corresponding to the target protective film and the target film cutting path, wherein when the target curvature is greater than or equal to the target preset curvature threshold, the edge of the target protective film will be distorted after cutting; a curvature processing module, used to process the target curvature of the target film surface when the target curvature corresponding to the target film surface is greater than or equal to the target preset curvature threshold, and adjust the target curvature of the target film surface to be less than the target preset curvature threshold; a film material cutting module, used to cut the target protective film according to the target film cutting path.

[0006] The third technical solution of the embodiment of the present invention is: A computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the following steps: After the target protective film to be cut is laid flat on the target cutting table, current environmental data, target film parameters corresponding to the target protective film and target film cutting path are obtained, wherein the environmental data include target environmental temperature and target environmental humidity, and the target film parameters include target film material, target film thickness, target film hardness and target film elasticity; it is judged whether the target film hardness is outside the target preset film hardness threshold range, wherein when the target film hardness is outside the target preset film hardness threshold range, the edge of the target protective film will be uneven after cutting; if so, the hardness of the target protective film is processed to adjust the hardness of the target protective film to the target value. The degree of hardness is adjusted to be within the target preset film hardness threshold range; whether a target film surface appears on the target protective film and the area corresponding to the target film cutting path; if so, whether the target curvature corresponding to the target film surface is greater than or equal to the target preset curvature threshold, wherein when the target curvature is greater than or equal to the target preset curvature threshold, the edge of the target protective film will be distorted after cutting; if so, the target curvature of the target film surface is processed, and the target curvature of the target film surface is adjusted to be less than the target preset curvature threshold; the target protective film is cut according to the target film cutting path.

[0007] The fourth technical solution of the embodiment of the present invention is: A computer-readable storage medium stores a computer program, which, when executed by a processor, causes the processor to perform the following steps: After the target protective film to be cut is laid flat on the target cutting table, current environmental data, target film parameters corresponding to the target protective film and target film cutting path are obtained, wherein the environmental data include target environmental temperature and target environmental humidity, and the target film parameters include target film material, target film thickness, target film hardness and target film elasticity; it is judged whether the target film hardness is outside the target preset film hardness threshold range, wherein when the target film hardness is outside the target preset film hardness threshold range, the edge of the target protective film will be uneven after cutting; if so, the hardness of the target protective film is processed to adjust the hardness of the target protective film to the target value. The degree of hardness is adjusted to be within the target preset film hardness threshold range; whether a target film surface appears on the target protective film and the area corresponding to the target film cutting path; if so, whether the target curvature corresponding to the target film surface is greater than or equal to the target preset curvature threshold, wherein when the target curvature is greater than or equal to the target preset curvature threshold, the edge of the target protective film will be distorted after cutting; if so, the target curvature of the target film surface is processed, and the target curvature of the target film surface is adjusted to be less than the target preset curvature threshold; the target protective film is cut according to the target film cutting path.

[0008] Compared with the prior art, the present invention has the following beneficial effects: The present invention first obtains the current environmental data, the target film parameters corresponding to the target protective film and the target film cutting path, and then determines whether the hardness of the target film is outside the target preset film hardness threshold range. If so, the hardness of the target protective film is processed and the hardness of the target protective film is adjusted to be within the target preset film hardness threshold range. Secondly, it is determined whether a target film surface appears in the area corresponding to the target protective film and the target film cutting path. If so, it is determined whether the target curvature corresponding to the target film surface is greater than or equal to the target preset curvature threshold. If so, the target curvature of the target film surface is processed and the target curvature of the target film surface is adjusted to be less than the target preset curvature threshold. Finally, the target protective film is cut according to the target film cutting path, without the need for manual cutting, and the cutting accuracy is high, and there will be no distortion or other problems in the cutting due to the hardness and deformation of the protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] in: Figure 1 This is a flow chart of an implementation method of a protective film cutting method according to an embodiment; Figure 2 Another implementation flow chart of an embodiment of a method for cutting a protective film in one embodiment; Figure 3 This is a frame structure diagram of an embodiment of a cutting device for a protective film; Figure 4 It is a structural block diagram of an implementation scheme of a computer device in one embodiment. DETAILED DESCRIPTION

[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0012] See also Figure 1 , combined withFigure 1 It can be seen that a method for cutting a protective film according to an embodiment of the present invention includes the following steps: Step S101: After the target protective film to be cut is laid flat on the target cutting table, the current environmental data, the target film parameters corresponding to the target protective film, and the target film cutting path are obtained, wherein the environmental data includes the target environmental temperature and the target environmental humidity, and the target film parameters include the target film material, target film thickness, target film hardness, and target film elasticity.

[0013] In this step, the material and thickness of the protective film are related to its hardness and elasticity, and the temperature and humidity in the environmental factors are also related to the hardness and elasticity of the protective film.

[0014] Among them, after the protective film is cut, the edges of the protective film must be free of fuzz and distortion to be qualified, otherwise there will be deviations.

[0015] Step S102: Determine whether the target film hardness is outside the target preset film hardness threshold range, wherein the target preset film hardness threshold range is associated with the target film parameters, the target ambient temperature, and the target ambient humidity. When the target film hardness is outside the target preset film hardness threshold range, cutting will cause the edge of the target protective film to be uneven.

[0016] The target preset film hardness threshold range is an empirical threshold and is not limited here. When the hardness of the protective film is within the target preset film hardness threshold range, the edges of the protective film will not be fuzzy or distorted when it is cut, which can be verified by historical data. The hardness of the protective film is related to the ambient temperature and humidity, and more importantly, to its own material and thickness. The hardness of the protective film is relatively normal at room temperature in the summer, but the hardness of the protective film will increase in the cold winter. When cutting, the hardness of the protective film needs to be adjusted to ensure that there is no deviation in cutting.

[0017] Step S103: If the target film hardness is outside the target preset film hardness threshold range, the hardness of the target protective film is processed to adjust the hardness of the target protective film to be within the target preset film hardness threshold range.

[0018] Among them, the hardness of the protective film is related to its own material and thickness. These factors cannot be changed. Only environmental factors can be changed, that is, the temperature and humidity of the environment can be changed. However, the humidity is not easy to change. This embodiment uses the method of changing the ambient temperature to process the hardness of the target protective film, and adjusts the hardness of the target protective film to within the target preset film hardness threshold range.

[0019] Step S104: determining whether a target film curved surface appears on the target protective film and in the area corresponding to the target film cutting path.

[0020] Among them, in this step, the target film curved surface in this embodiment refers to the target protective film being arched or having a wrinkled shape. In essence, the target protective film and the target cutting table are not completely fitted together, resulting in a curved surface (i.e., the target film curved surface) on the target protective film.

[0021] Step S105: If a target film surface appears on the target protective film and the area corresponding to the target film cutting path, determine whether the target curvature corresponding to the target film surface is greater than or equal to a target preset curvature threshold, wherein the target preset curvature threshold is associated with the target film parameters, the target ambient temperature and the target ambient humidity. When the target curvature is greater than or equal to the target preset curvature threshold, the edge of the target protective film will be distorted after cutting.

[0022] In this step, the target preset curvature threshold is an empirical threshold and is not limited here. The larger the target curvature corresponding to the target film surface, the greater the deformation of the protective film, and the more likely it is to deviate during cutting, resulting in uneven cut edges, rough corners, and edge distortion.

[0023] When the target curvature is smaller than the target preset curvature threshold, the edge of the target protective film will not be distorted after cutting, and deviation and uneven edges will not occur.

[0024] Step S106: If the target curvature corresponding to the target film curved surface is greater than or equal to the target preset curvature threshold, the target curvature corresponding to the target film curved surface is processed to adjust the target curvature of the target film curved surface to be less than the target preset curvature threshold.

[0025] In this step, a method of flattening the target film surface may be optionally used to adjust the target curvature of the target film surface to be smaller than the target preset curvature threshold.

[0026] Step S107: cutting the target protective film according to the target film cutting path.

[0027] See also Figure 2 , combined with Figure 2 It can be seen that a method for cutting a protective film according to an embodiment of the present invention includes the following steps: Step S201: after the target protective film to be cut is laid flat on the target cutting table, it is determined whether the target protective film is a target normal protective film, wherein the target normal protective film is a protective film without damage and dust.

[0028] Among them, when the target protective film is not the target normal protective film, it has no use value regardless of whether the cutting is qualified or not. Therefore, it is necessary to first ensure that the target protective film is the target normal protective film.

[0029] Step S202: If the target protective film is a target normal protective film, obtain current environmental data, target film parameters corresponding to the target protective film, and target film cutting path, wherein the environmental data includes target environmental temperature and target environmental humidity, and the target film parameters include target film material, target film thickness, target film hardness, and target film elasticity.

[0030] In this step, the material and thickness of the protective film are related to its hardness and elasticity, and the temperature and humidity in the environmental factors are also related to the hardness and elasticity of the protective film.

[0031] Among them, after the protective film is cut, the edges of the protective film must be free of fuzz and distortion to be qualified, otherwise there will be deviations.

[0032] Wherein, in this step, if the target protective film is not the target normal protective film, the cutting operation on the target protective film is stopped and an alarm is issued.

[0033] Step S203: Determine whether the target film hardness is outside the target preset film hardness threshold range, wherein the target preset film hardness threshold range is associated with the target film parameters, the target ambient temperature and the target ambient humidity. When the target film hardness is outside the target preset film hardness threshold range, cutting will cause the edge of the target protective film to be uneven.

[0034] The target preset film hardness threshold range is an empirical threshold and is not limited here. When the hardness of the protective film is within the target preset film hardness threshold range, the edges of the protective film will not be fuzzy or distorted when it is cut, which can be verified by historical data. The hardness of the protective film is related to the ambient temperature and humidity, and more importantly, to its own material and thickness. The hardness of the protective film is relatively normal at room temperature in the summer, but the hardness of the protective film will increase in the cold winter. When cutting, the hardness of the protective film needs to be adjusted to ensure that there is no deviation in cutting.

[0035] Step S204: If the target film hardness is outside the target preset film hardness threshold range, the hardness of the target protective film is processed to adjust the hardness of the target protective film to be within the target preset film hardness threshold range.

[0036] Among them, the hardness of the protective film is related to its own material and thickness. These factors cannot be changed. Only environmental factors can be changed, that is, the temperature and humidity of the environment can be changed. However, the humidity is not easy to change. This embodiment uses the method of changing the ambient temperature to process the hardness of the target protective film, and adjusts the hardness of the target protective film to within the target preset film hardness threshold range.

[0037] In this embodiment, optionally, processing the hardness of the target protective film to adjust the hardness of the target protective film to be within the target preset film hardness threshold range includes: First, a target film hardness and temperature correspondence table of the target protective film pre-stored in a target database is obtained.

[0038] In the target film hardness and temperature correspondence table, the hardness of the protective film and the temperature correspond one to one. In addition, different film materials have different hardnesses at the same temperature.

[0039] Second, according to the target film hardness and temperature correspondence table, a target adjustment temperature range corresponding to the target preset film hardness threshold range is found.

[0040] Third, the temperature of the target protective film is adjusted within the adjustment temperature range, thereby adjusting the hardness of the target protective film within the target preset film hardness threshold range.

[0041] In this embodiment, optionally, adjusting the temperature of the target protective film within the adjustment temperature range, and further adjusting the hardness of the target protective film within the target preset film hardness threshold range, includes: First, controlling the target heating device to heat the target cutting table and monitoring the temperature of the target protective film in real time.

[0042] The protective film is spread on the target cutting table. As long as the target cutting table is heated, the target protective film will naturally be heated indirectly. The heating temperature and duration need to be controlled so as not to melt the target protective film.

[0043] Second, by controlling the heating time and temperature of the target cutting table by the target heating device, the temperature of the target protective film is adjusted within the adjustment temperature range, and then the hardness of the target protective film is adjusted within the target preset film hardness threshold range.

[0044] Step S205: determining whether a target film curved surface appears on the target protective film and in the area corresponding to the target film cutting path.

[0045] Among them, in this step, the target film curved surface in this embodiment refers to the target protective film being arched or having a wrinkled shape. In essence, the target protective film and the target cutting table are not completely fitted together, resulting in a curved surface (i.e., the target film curved surface) on the target protective film.

[0046] Step S206: If a target film surface appears on the target protective film and the area corresponding to the target film cutting path, determine whether the target curvature corresponding to the target film surface is greater than or equal to a target preset curvature threshold, wherein the target preset curvature threshold is associated with the target film parameters, the target ambient temperature and the target ambient humidity. When the target curvature is greater than or equal to the target preset curvature threshold, the edge of the target protective film will be distorted after cutting.

[0047] In this step, the target preset curvature threshold is an empirical threshold and is not limited here. The larger the target curvature corresponding to the target film surface, the greater the deformation of the protective film, and the more likely it is to deviate during cutting, resulting in uneven cut edges, rough corners, and edge distortion.

[0048] When the target curvature is smaller than the target preset curvature threshold, the edge of the target protective film will not be distorted after cutting, and deviation and uneven edges will not occur.

[0049] Step S207: If the target curvature corresponding to the target film curved surface is greater than or equal to the target preset curvature threshold, the target curvature corresponding to the target film curved surface is processed to adjust the target curvature of the target film curved surface to be less than the target preset curvature threshold.

[0050] In this step, a method of flattening the target film surface may be optionally used to adjust the target curvature of the target film surface to be smaller than the target preset curvature threshold.

[0051] In this embodiment, optionally, processing the target curvature of the target film curved surface to adjust the target curvature of the target film curved surface to be smaller than the target preset curvature threshold includes: First, a target film tensile force and elasticity correspondence table of the target protective film pre-stored in a target database is obtained.

[0052] Among them, in the target membrane tensile force and elasticity correspondence table, the membrane tensile force and the membrane elastic force correspond one to one. When the membrane tensile force is too large, the elastic function of the membrane will be destroyed. Therefore, the size of the membrane tensile force needs to be controlled.

[0053] Second, according to the target film tensile force and elasticity correspondence table, a target film tensile force range that does not destroy the elastic function of the target protective film is found.

[0054] Third, according to the target film stretching force range, the target film curved surface is stretched, and the target curvature corresponding to the target film curved surface is adjusted to be smaller than the target preset curvature threshold.

[0055] In this embodiment, optionally, the stretching of the target film curved surface according to the target film tensile force range, and adjusting the target curvature corresponding to the target film curved surface to be smaller than the target preset curvature threshold, includes: First, according to the target film stretching force range, the target stretching device is controlled to stretch the target film curved surface corresponding to the target protective film.

[0056] Among them, this step is to flatten the target film curved surface so that part of the target film curved surface fits on the target cutting table, which will ensure that the quality of film cutting is greatly improved.

[0057] Second, the target curvature corresponding to the target film curved surface is detected in real time, and the target curvature corresponding to the target film curved surface is adjusted to be smaller than the target preset curvature threshold.

[0058] In this embodiment, optionally, the real-time detection of the target curvature corresponding to the target film curved surface and the adjustment of the target curvature corresponding to the target film curved surface to be smaller than the target preset curvature threshold include: First, the highest point corresponding to the target film curved surface and the height of the target curved surface of the target cutting table are detected in real time.

[0059] The highest point corresponding to the target film curved surface and the height of the target curved surface of the target cutting table can reflect the curvature of the target film curved surface, and the two are in direct proportion.

[0060] Second, according to the target curved surface height, the target curvature corresponding to the target film curved surface is detected in real time, and the target curvature corresponding to the target film curved surface is adjusted to be smaller than the target preset curvature threshold.

[0061] Step S208: cutting the target protective film according to the target film cutting path.

[0062] See also Figure 3 , combined with Figure 3 It can be seen that a protective film cutting system 100 according to an embodiment of the present invention includes: a data acquisition module 10 for acquiring current environmental data, target film parameters corresponding to the target protective film, and a target film cutting path after the target protective film to be cut is laid flat on the target cutting table, wherein the environmental data includes a target environmental temperature and a target environmental humidity, and the target film parameters include a target film material, a target film thickness, a target film hardness, and a target film elasticity; A first judgment module 20 is configured to judge whether the target film hardness is outside a target preset film hardness threshold range, wherein when the target film hardness is outside the target preset film hardness threshold range, the edge of the target protective film may be uneven after cutting; a hardness processing module 30 for processing the hardness of the target protective film to adjust the hardness of the target protective film to be within the target preset film hardness threshold range when the target film hardness is outside the target preset film hardness threshold range; The second judging module 40 is used to judge whether a target film curved surface appears on the target protective film and the area corresponding to the target film cutting path; a third judgment module 50, configured to, when the target film curved surface appears in the area corresponding to the target protective film and the target film cutting path, determine whether a target curvature corresponding to the target film curved surface is greater than or equal to a target preset curvature threshold, wherein when the target curvature is greater than or equal to the target preset curvature threshold, the edge of the target protective film will be distorted after cutting; a curvature processing module 60 for processing the target curvature of the target film curved surface to adjust the target curvature of the target film curved surface to be less than the target preset curvature threshold when the target curvature corresponding to the target film curved surface is greater than or equal to the target preset curvature threshold; The film material cutting module 70 is used to cut the target protective film according to the target film cutting path.

[0063] Figure 4 FIG1 shows an internal structure diagram of a computer device in an embodiment. The computer device can be a terminal or a server. Figure 4 As shown, the computer device includes a processor, a memory and a network interface connected via a system bus. The memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and may also store a computer program. When the computer program is executed by the processor, the processor can implement the above-mentioned method for cutting the protective film. The internal memory may also store a computer program. When the computer program is executed by the processor, the processor can implement the above-mentioned method for cutting the protective film. It will be understood by those skilled in the art that Figure 4The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0064] In another embodiment, a computer device is provided, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the following steps: After the target protective film to be cut is laid flat on the target cutting table, current environmental data, target film parameters corresponding to the target protective film and target film cutting path are obtained, wherein the environmental data include target environmental temperature and target environmental humidity, and the target film parameters include target film material, target film thickness, target film hardness and target film elasticity; it is judged whether the target film hardness is outside the target preset film hardness threshold range, wherein when the target film hardness is outside the target preset film hardness threshold range, the edge of the target protective film will be uneven after cutting; if so, the hardness of the target protective film is processed to adjust the hardness of the target protective film to the target value. The degree of hardness is adjusted to be within the target preset film hardness threshold range; whether a target film surface appears on the target protective film and the area corresponding to the target film cutting path; if so, whether the target curvature corresponding to the target film surface is greater than or equal to the target preset curvature threshold, wherein when the target curvature is greater than or equal to the target preset curvature threshold, the edge of the target protective film will be distorted after cutting; if so, the target curvature of the target film surface is processed, and the target curvature of the target film surface is adjusted to be less than the target preset curvature threshold; the target protective film is cut according to the target film cutting path.

[0065] In another embodiment, a computer-readable storage medium is provided, storing a computer program. When the computer program is executed by a processor, the processor is caused to perform the following steps: After the target protective film to be cut is laid flat on the target cutting table, current environmental data, target film parameters corresponding to the target protective film and target film cutting path are obtained, wherein the environmental data include target environmental temperature and target environmental humidity, and the target film parameters include target film material, target film thickness, target film hardness and target film elasticity; it is judged whether the target film hardness is outside the target preset film hardness threshold range, wherein when the target film hardness is outside the target preset film hardness threshold range, the edge of the target protective film will be uneven after cutting; if so, the hardness of the target protective film is processed to adjust the hardness of the target protective film to the target value. The degree of hardness is adjusted to be within the target preset film hardness threshold range; whether a target film surface appears on the target protective film and the area corresponding to the target film cutting path; if so, whether the target curvature corresponding to the target film surface is greater than or equal to the target preset curvature threshold, wherein when the target curvature is greater than or equal to the target preset curvature threshold, the edge of the target protective film will be distorted after cutting; if so, the target curvature of the target film surface is processed, and the target curvature of the target film surface is adjusted to be less than the target preset curvature threshold; the target protective film is cut according to the target film cutting path.

[0066] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0067] The embodiment of the present application firstly acquires current environment data, target film parameters corresponding to the target protective film and a target film cutting path, secondly judges whether the hardness of the target film is outside the target preset film hardness threshold range, if yes, processes the hardness of the target protective film, adjusts the hardness of the target protective film within the target preset film hardness threshold range, secondly judges whether a target film curved surface appears on the region corresponding to the target film cutting path, if yes, judges whether the target curvature corresponding to the target film curved surface is greater than or equal to a target preset curvature threshold, if yes, processes the target curvature of the target film curved surface, adjusts the target curvature of the target film curved surface to be less than the target preset curvature threshold, and finally cuts the target protective film according to the target film cutting path, without manual cutting, with high cutting accuracy, and without distortion of the target protective film due to hardness and deformation of the target protective film.

[0068] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present application.

[0069] The above embodiments only express several implementation manners of the present application, and the description is specific and detailed, but it should not be considered as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A method for cutting a protective film, characterized in that: include: After the target protective film to be cut is laid flat on the target cutting table, current environmental data, target film parameters corresponding to the target protective film, and a target film cutting path are obtained, wherein the environmental data includes a target environmental temperature and a target environmental humidity, and the target film parameters include a target film material, a target film thickness, a target film hardness, and a target film elasticity; determining whether the target film hardness is outside a target preset film hardness threshold range, wherein when the target film hardness is outside the target preset film hardness threshold range, cutting may result in an uneven edge of the target protective film; If yes, the hardness of the target protective film is processed to adjust the hardness of the target protective film to be within the target preset film hardness threshold range; Determining whether a target film curved surface appears in an area corresponding to the target protective film and the target film cutting path; If so, determining whether a target curvature corresponding to the target film curved surface is greater than or equal to a target preset curvature threshold, wherein when the target curvature is greater than or equal to the target preset curvature threshold, cutting will cause the edge of the target protective film to be distorted; If yes, processing the target curvature of the target film curved surface to adjust the target curvature of the target film curved surface to be smaller than the target preset curvature threshold; The target protective film is cut according to the target film cutting path.

2. The method for cutting a protective film according to claim 1, wherein: Before obtaining the current environment data, the target film parameters corresponding to the target protective film, and the target film cutting path, the method includes: Determining whether the target protective film is a target normal protective film, wherein the target normal protective film is a protective film without damage or dust; If so, the current environment data, the target film parameters corresponding to the target protective film, and the target film cutting path are obtained; otherwise, the cutting operation on the target protective film is stopped and an alarm is issued.

3. The method for cutting a protective film according to claim 1, wherein: The processing of the hardness of the target protective film to adjust the hardness of the target protective film to be within the target preset film hardness threshold range includes: Obtaining a target film hardness and temperature correspondence table of the target protective film pre-stored in a target database; According to the target film hardness and temperature correspondence table, a target adjustment temperature range corresponding to the target preset film hardness threshold range is found; The temperature of the target protective film is adjusted within the adjustment temperature range, and the hardness of the target protective film is adjusted within the target preset film hardness threshold range.

4. The method for cutting a protective film according to claim 1, wherein: The processing of the target curvature of the target film curved surface to adjust the target curvature of the target film curved surface to be smaller than the target preset curvature threshold includes: Obtaining a target film tensile force and elasticity correspondence table of the target protective film pre-stored in a target database; According to the target film tensile force and elasticity correspondence table, a target film tensile force range that does not destroy the elastic function of the target protective film is found; According to the target film tensile force range, the target film curved surface is stretched, and the target curvature corresponding to the target film curved surface is adjusted to be smaller than the target preset curvature threshold.

5. The method for cutting a protective film according to claim 3, wherein: The step of adjusting the temperature of the target protective film within the adjustment temperature range, and further adjusting the hardness of the target protective film within the target preset film hardness threshold range, includes: controlling a target heating device to heat the target cutting table and monitoring the temperature of the target protective film in real time; By controlling the heating time and temperature of the target cutting table by the target heating device, the temperature of the target protective film is adjusted within the adjustment temperature range, and the hardness of the target protective film is adjusted within the target preset film hardness threshold range.

6. The method for cutting a protective film according to claim 4, wherein: The stretching process is performed on the target film curved surface according to the target film tensile force range, and the target curvature corresponding to the target film curved surface is adjusted to be smaller than the target preset curvature threshold, including: According to the target film stretching force range, controlling the target stretching device to stretch the target film curved surface corresponding to the target protective film; The target curvature corresponding to the target film curved surface is detected in real time, and the target curvature corresponding to the target film curved surface is adjusted to be smaller than the target preset curvature threshold.

7. The method for cutting a protective film according to claim 6, wherein: The real-time detection of the target curvature corresponding to the target film curved surface and the adjustment of the target curvature corresponding to the target film curved surface to be smaller than the target preset curvature threshold value include: Real-time detection of the highest point corresponding to the target film curved surface and the height of the target curved surface of the target cutting table; According to the target curved surface height, the target curvature corresponding to the target film curved surface is detected in real time, and the target curvature corresponding to the target film curved surface is adjusted to be smaller than the target preset curvature threshold.

8. A cutting device for a protective film, characterized in that: include: a data acquisition module, configured to acquire current environmental data, target film parameters corresponding to the target protective film, and a target film cutting path after the target protective film to be cut is laid flat on the target cutting table, wherein the environmental data includes a target environmental temperature and a target environmental humidity, and the target film parameters include a target film material, a target film thickness, a target film hardness, and a target film elasticity; a first judging module, configured to judge whether the target film hardness is outside a target preset film hardness threshold range, wherein when the target film hardness is outside the target preset film hardness threshold range, the edge of the target protective film will be uneven after cutting; a hardness processing module, configured to process the hardness of the target protective film when the target film hardness is outside the target preset film hardness threshold range, and adjust the hardness of the target protective film to be within the target preset film hardness threshold range; A second judgment module is used to judge whether a target film curved surface appears on the target protective film and the area corresponding to the target film cutting path; a third judgment module, configured to judge, when the target film curved surface appears on the target protective film and the area corresponding to the target film cutting path, whether a target curvature corresponding to the target film curved surface is greater than or equal to a target preset curvature threshold, wherein when the target curvature is greater than or equal to the target preset curvature threshold, the edge of the target protective film will be distorted after cutting; a curvature processing module, configured to process the target curvature of the target film curved surface and adjust the target curvature of the target film curved surface to be smaller than the target preset curvature threshold when the target curvature corresponding to the target film curved surface is greater than or equal to the target preset curvature threshold; The film material cutting module is used to cut the target protective film according to the target film cutting path.

9. A computer-readable storage medium, characterized in that A computer program is stored, and when the computer program is executed by a processor, the processor is caused to execute the method for cutting the protective film according to any one of claims 1 to 7.

10. A computer device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the method for cutting the protective film according to any one of claims 1 to 7.

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