Film pasting equipment, heating device and temperature control method of heating device

Abstract

The invention provides a heating device which is used for heating a membrane material, the heating device comprises a heating assembly and a temperature control assembly, the heating assembly comprises a body, a first heating assembly and a second heating assembly, the first heating assembly comprises a plurality of first heating pieces arranged in parallel, and the second heating assembly comprises a plurality of second heating pieces arranged in parallel; wherein the first heating assemblies and the second heating assemblies are arranged in an overlapping manner, so that the plurality of first heating pieces and the plurality of second heating pieces are arranged in an array shape; the temperature control assembly is used for independently regulating and controlling the heating power of each first heating piece and each second heating piece so that each first heating piece and each second heating piece can heat the membrane material. In addition, the invention further provides film pasting equipment and a temperature control method of the heating device. The first heating assemblies and the second heating assemblies are arranged in an array mode, the interval between every two adjacent heating pieces in each heating assembly is adjustable, the heating pieces can be installed in a sliding mode, and therefore the heating area is more uniform.

Description

Technical Field

[0001] The present application relates to the field of temperature control technology, and in particular to a film laminating device, a heating device and a temperature control method thereof. Background Art

[0002] In modern industrial production, especially for high-precision film lamination processes for products like automotive interiors and AR / VR lenses, heating and temperature control of film materials is crucial. Traditional heating methods utilize hot air heating and infrared heating equipment. However, the difficulty in precisely controlling the hot air flow leads to uneven surface temperature distribution during hot air heating, impacting film quality. Furthermore, the single arrangement of heating elements within existing infrared heating equipment results in insufficient heating uniformity, making it difficult to precisely control the film temperature. Summary of the Invention

[0003] In view of this, it is necessary to provide a film laminating device, a heating device and a temperature control method thereof.

[0004] In a first aspect, an embodiment of the present application provides a heating device for heating a film material, characterized in that the heating device includes a heating component and a temperature control component, the heating component includes a main body, and a first heating component and a second heating component installed on the main body, the first heating component includes a plurality of first heating elements arranged in parallel, and the second heating component includes a plurality of second heating elements arranged in parallel; wherein the first heating component and the second heating component are arranged overlappingly, so that the plurality of first heating elements and the plurality of second heating elements are arranged in an array; the temperature control component is used to separately regulate the heating power of each first heating element and each second heating element, so that each first heating element and each second heating element heats the film material.

[0005] In a second aspect, an embodiment of the present application provides a film laminating device, which includes a film laminating device and the above-mentioned heating device, and the film laminating device is used to laminate a film material onto a workpiece to be laminated.

[0006] In a third aspect, an embodiment of the present application provides a temperature control method for a heating device, the temperature control method comprising: providing a plurality of first heating elements and a plurality of second heating elements arranged in an array, and setting the initial heating power of each first heating element and each second heating element according to preset film material parameters, so that each first heating element and each second heating element generates heat according to the corresponding initial heating power; specifying a plurality of preset monitoring points in the film material, and monitoring the temperatures of the plurality of preset monitoring points to determine whether the difference in temperature of each preset monitoring point is within a preset range; when the difference is not within the preset range, calculating the compensation temperature of the temperature of the plurality of preset monitoring points using a preset temperature compensation formula; adjusting the initial heating power of the corresponding heating element according to the compensation temperature, and re-monitoring the temperature of the plurality of preset monitoring points until the difference in temperature of each preset monitoring point is within the preset range.

[0007] The aforementioned film laminating equipment, heating device, and temperature control method utilize an array of first and second heating components. The spacing between adjacent heating elements in each heating component is adjustable and slidable, resulting in a more uniform heating area and flexible adaptation to varying film shapes and sizes. Furthermore, the temperature control component independently regulates the heating power of each heating element based on preset film material parameters and real-time temperature data. The user can also adjust the spacing between the heating elements, achieving precise control over the film heating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0009] Figure 1 This is an exploded view of the heating assembly provided in an embodiment of the present application.

[0010] Figure 2 A three-dimensional diagram of a heating assembly provided in an embodiment of the present application.

[0011] Figure 3 A schematic structural diagram of the installation portion provided in an embodiment of the present application.

[0012] Figure 4 This is a first schematic diagram of a heating assembly provided in an embodiment of the present application.

[0013] Figure 5 This is a second schematic diagram of the heating assembly provided in an embodiment of the present application.

[0014] Figure 6 This is a structural block diagram of the heating device provided in an embodiment of the present application.

[0015] Figure 7 This is a structural block diagram of the film-laminating equipment provided in an embodiment of the present application.

[0016] Figure 8 This is a first schematic diagram of a heating component heating a film material provided in an embodiment of the present application.

[0017] Figure 9 This is a flow chart of a temperature control method for a heating device provided in an embodiment of the present application.

[0018] Figure 10 This is a second schematic diagram of the heating component heating the film material provided in an embodiment of the present application.

[0019] Figure 11 A schematic diagram of temperature monitoring at each preset monitoring point provided in an embodiment of the present application.

[0020] Figure 12 This is a temperature monitoring bar chart of each preset monitoring point provided in the embodiment of the present application.

[0021] Component numbers

[0022]

[0023]

[0024] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of this application more clear, the present application is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] The terms "first," "second," "third," "fourth," and the like (if any) in the specification and claims of this application and in the accompanying drawings are used to distinguish similar program objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate. In other words, the described embodiments are implemented according to an order other than that illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, may also encompass other content. For example, a process, method, system, product, or apparatus comprising a series of steps or units need not be limited to only those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0027] It should be noted that the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0028] Please see Figure 7 , which is a structural block diagram of the film laminating device provided in an embodiment of the present application. The present application provides a film laminating device 1000. The film laminating device 1000 includes a film laminating device 200 and a heating device 100. Among them, the film laminating device 200 is provided with a film material 201 and a workpiece to be laminarized 202. The film laminating device 200 is used to adhere the film material 201 to the workpiece to be laminarized 202. The heating device 100 is used to heat the film material 201 so that the film material 201 is deformed by heat, and then the film laminating device 200 adheres the heat-deformed film material 201 to the workpiece to be laminarized 202. The film material 201 in the present application is a film that can be softened by heat, such as a plastic film. The workpiece to be laminarized 202 includes but is not limited to automotive interiors, AR / VR lenses, etc., that is, the workpiece to be laminarized 202 can be a curved workpiece or a flat workpiece. Accordingly, the film laminating device 1000 can be used to achieve curved film lamination or flat film lamination.

[0029] Please see Figure 6 The present application provides a heating device 100. The heating device 100 is provided in a film laminating device 1000 and includes a heating component 1 and a temperature control component 2. The temperature control component 2 is communicatively connected to the heating component 1 so that a user can control the heating component 1 through the temperature control component 2 to heat the film material 201.

[0030] The heating assembly 1 includes a main body 11, a first heating assembly 12 and a second heating assembly 13. The first heating assembly 12 and the second heating assembly 13 are installed on the main body 11 and overlap. Specifically, the first heating assembly 12 includes a plurality of first heating elements 121, and the second heating assembly 13 includes a plurality of second heating elements 131. Among them, the plurality of first heating elements 121 are arranged in parallel in the first direction X1, and the plurality of second heating elements 131 are arranged in parallel in the second direction X2. The plurality of first heating elements 121 and the plurality of second heating elements 131 are arranged in an array. In this application, the main body 11 is made of heat-insulating material, which is used to block the heat generated by the first heating assembly 12 and the second heating assembly 13, prevent the user from accidentally contacting the heated first heating assembly 12 and the second heating assembly 13, and ensure the safety of the heating film material 201. The first heating element 121 and the second heating element 131 are controllable heating devices, such as infrared heating devices. Each first heating element 121 and each second heating element 131 can emit infrared light of a preset wavelength to heat the film material 201, and the wavelengths emitted by each first heating element 121 and each second heating element 131 can be the same or different to adapt to the heating requirements of different film materials 201.

[0031] In this embodiment, each first heating element 121 and / or each second heating element 131 is slidably mounted on the main body 11, and the interval between two adjacent first heating elements 121 and / or the interval between two adjacent second heating elements 131 is adjustable. Specifically, the main body 11 is provided with a slide groove. The slide groove includes two groups of first slide grooves 1101 arranged opposite to each other, and two groups of second slide grooves 1102 arranged opposite to each other. Among them, the two ends of each first heating element 121 are respectively fixed to the two groups of first slide grooves 1101. The two ends of each second heating element 131 are respectively fixed to the two groups of second slide grooves 1102. In this application, the main body 11 can be a cover body with an opening on one side. The slide groove is arranged on the side of the cover body opposite to the opening (hereinafter referred to as the "slide groove opening surface"). The cross-section corresponding to the slide groove opening surface includes but is not limited to a rectangle, a rounded rectangle, etc. In this application, the cross-section corresponding to the slide groove opening surface is a rectangle as an example. Different groups of chutes are located on different opposite sides of the chute opening surface, that is, the two groups of first chutes 1101 are respectively located on the opposite sides of one group of chute opening surfaces, and the two groups of second chutes 1102 are respectively located on the opposite sides of the other group of chute opening surfaces.

[0032] Furthermore, the chute opening surface includes two convex parts and a concave part located between the two convex parts. The cross-sections corresponding to the two convex parts and the concave part are both rectangular. The cross-sections corresponding to the convex parts and the concave parts include but are not limited to rectangles, rounded rectangles, etc. In this application, the cross-sections corresponding to the convex parts and the concave parts are rectangular as an example. The two groups of first chutes 1101 are also respectively located on the two convex parts, and the two groups of second chutes 1102 are also located on the concave part, so that there is a distance between the first heating component 12 and the second heating component 13 to prevent the first heating element 121 and the second heating element 131 from being damaged due to contact when heating the film material 201.

[0033] Both ends of each first heating element 121 and each second heating element 131 are operatively slidable. Specifically, both ends of each first heating element 121 and / or each second heating element 131 are mounted on the body 11 via a mounting portion 10. Figure 3 As shown, each mounting portion 10 includes a locking portion 101, an operating portion 102 and a mounting portion body 103. The locking portion 101 is used to lock one end of the corresponding first heating element 121 or the second heating element 131 to the body 11 or unlock it from the body 11. The operating portion 102 is used for allowing the user to move the corresponding first heating element 121 or the second heating element 131 along the corresponding first slide groove 1101 or the second slide groove 1102. In this application, the mounting portion body 103 is located on the side of the body 11 facing the heating element. The locking portion 101 is located on the side of the mounting portion body 103 facing the body 11, and is passed through the corresponding slide groove to the side of the body 11 away from the heating element. The locking portion 101 can be operated by a user to lock or unlock the mounting portion body 103, so that one end of the corresponding first heating element 121 or second heating element 131 is locked to the corresponding first slide groove 1101 or second slide groove 1102, thereby locking or unlocking one end of the corresponding first heating element 121 or second heating element 131 to the body 11. The operating portion 102 is connected to a side of the mounting portion body 103 away from the locking portion 101, and is provided from the corresponding slide groove to a side of the body 11 away from the heating element, so that the user can move the unlocked first heating element 121 or second heating element 131 along the corresponding first slide groove 1101 or second slide groove 1102.

[0034] Furthermore, each set of first chute 1101 includes a first locking groove 1101a and a first operating groove 1101b. Each set of second chute 1102 includes a second locking groove 1102a and a second operating groove 1102b. The first locking groove 1101a and the second locking groove 1102a are disposed opposite each other and are respectively provided for the locking portions 101 of the first heating element 121 and the second heating element 131 to pass through. The first operating groove 1101b and the second operating groove 1102b are disposed opposite each other and are respectively provided for the operating portions 102 of the first heating element 121 and the second heating element 131 to pass through. The user can move the corresponding first heating element 121 or the second heating element 131 along the corresponding first slide groove 1101 or the second slide groove 1102 on the side of the main body 11 away from the heating element, that is, the external operation installation part 10 of the main body 11, so as to adjust the heating of the film material 201 and adjust the interval between two adjacent first heating elements 121 and / or the interval between two adjacent second heating elements 131 without contacting the heating element, thereby adjusting the heating of the film material 201 by the heating component 1. While improving the safety of adjusting the heating component 1 to heat the film material 201, it also reduces the possibility of damage to the first heating element 121 or the second heating element 131 due to improper operation of the first heating element 121 or the second heating element 131.

[0035] The temperature control component 2 is used to individually regulate the heating power of each first heating element 121 and each second heating element 131, so that each first heating element 121 and each second heating element 131 heats the film material 201. The temperature control component 2 includes a temperature controller 21, a first sensor 22, and a plurality of second sensors 23. Among them, the first sensor 22 and the plurality of second sensors 23 are respectively used to monitor the film material temperature at a plurality of preset monitoring points on the film material 201. The temperature controller 21 is used to set the initial heating power of each first heating element 121 and the second heating element 131 according to the preset film material parameters, and adjust the initial heating power of the corresponding first heating element 121 and / or the second heating element 131 according to the film material temperature at a plurality of preset monitoring points, so as to adjust the heating of the film material 201 by the heating component 1. The preset film material parameters in this application include but are not limited to the material and thickness of the film material 201, the absorption efficiency of the film material 201 to infrared light of different wavelengths, etc. The initial heating power is used to adjust the initial heating temperature and the rate of change of the heating temperature when each first heating element 121 and / or each second heating element 131 heats the film material 201. It will be appreciated that the initial heating temperature of each first heating element 121 and each second heating element 131 can be adjusted independently, and the initial spacing between two adjacent first heating elements 121 and / or the initial spacing between two adjacent second heating elements 131 can also be adjusted independently to accommodate the heating requirements of different film materials 201.

[0036] like Figure 8As shown, a plurality of preset monitoring points include a reference monitoring point 201a and a plurality of edge monitoring points 201b. Among them, the reference monitoring point 201a is located at the geometric center of the film material 201. A plurality of edge monitoring points 201b correspond one-to-one to a plurality of second sensors 23 and are arranged around the geometric center of the film material 201. In this application, the reference monitoring point 201a and the plurality of edge monitoring points 201b are obtained by pre-monitoring the geometric center and the temperature of each point of the film material 201 by an external temperature measuring device. In order to ensure the uniformity of heating the film material 201 by the heating component 1, the temperature value of each preset monitoring point must be within a preset range. The preset range includes but is not limited to the maximum temperature value of each monitoring point not exceeding the preset temperature value, the maximum temperature difference between each monitoring point and the reference monitoring point 201a at the same time is within the preset difference range, the temperature difference between each monitoring point and the reference monitoring point 201a at the same time is within the preset temperature difference range, etc.

[0037] For example, Figure 10 As shown, Figure 10 The middle film material 201 is rectangular, and the geometric center and temperature of each point on the film material 201 are pre-monitored by external temperature measurement equipment to determine a reference monitoring point 201a and edge monitoring points 201b1, 201b2, 201b3, and 201b4. Reference monitoring point 201a is located at the center of the rectangle, while edge monitoring points 201b1, 201b2, 201b3, and 201b4 are located around the geometric center of the film material 201 and are equidistant from reference monitoring point 201a. Figure 11 The temperature values ​​monitored by the first sensor 22 and several second sensors 23 at the reference monitoring point 201a and the edge monitoring points 201b1, 201b2, 201b3, 201b4 at 1-226 (unit: s) are shown. Figure 12 The bar graphs corresponding to the temperature values ​​monitored by the first sensor 22 and the second sensors 23 at the reference monitoring point 201a and the edge monitoring points 201b1, 201b2, 201b3, 201b4 at 1-226s are plotted. If the preset temperature value is set to 120°C and the preset difference range is set to ±4°C, Figure 11 The temperature values ​​at each monitoring point at different times indicate that the maximum temperature among all monitoring points occurs at edge monitoring point 201b1 at 226 seconds, with a maximum temperature of 111.02°C. The maximum temperature difference between each monitoring point and reference monitoring point 201a at the same time occurs at 101 seconds, with a maximum temperature difference of 74.62-70.86 = 3.76°C. These values ​​all fall within the preset range, indicating that heating assembly 1 heats film 201 uniformly. The above preset range is merely an example and does not limit the type or value of the preset range.

[0038] In this embodiment, along the setting direction of the first chute 1101 and the second chute 1102, mounting holes 111 are respectively provided on both sides of each first chute 1101 and each second chute 1102, so that the heating device 100 can be assembled to the film laminating device 200 through the mounting parts corresponding to the mounting holes 111. In this application, the heating device 100 can be detachably assembled to the film laminating device 200 according to the setting method of the film material 201 in the film laminating device 200 to adapt to different film laminating scenarios. For example, the workpiece 202 to be laminated is arranged below the film material 201. Then, when the heating device 100 is assembled to the film laminating device 200, it should be assembled above the film laminating device 200 and make the first heating component 12 and the second heating component 13 face the film material 201.

[0039] Please see Figure 9 The present application provides a temperature control method for a heating device 100. The specific features of the heating device 100 have at least been described in detail above. The temperature control method includes steps S101-S104.

[0040] In step S101, a plurality of first heating elements and a plurality of second heating elements are provided in an array, and the initial heating power of each first heating element and each second heating element is set according to preset film material parameters, so that each first heating element and each second heating element generates heat according to the corresponding initial heating power.

[0041] In step S101, preset film material parameters include, but are not limited to, the material and thickness of the film material 201, and the absorption efficiency of the film material 201 at different wavelengths of infrared light. The initial heating power is used to adjust the initial heating temperature of each first heating element 121 and / or each second heating element 131 when heating the film material 201, as well as the rate of change of the heating temperature.

[0042] In step S102 , a plurality of preset monitoring points are designated in the film material, and the temperatures of the plurality of preset monitoring points are monitored to determine whether the temperature difference of each preset monitoring point is within a preset range.

[0043] In step S102, a plurality of preset monitoring points include a reference monitoring point 201a and a plurality of edge monitoring points 201b. The reference monitoring point 201a is located at the geometric center of the film material 201. The plurality of edge monitoring points 201b are arranged around the geometric center of the film material 201. In this application, the reference monitoring point 201a and the plurality of edge monitoring points 201b are obtained by pre-monitoring the geometric center and the temperature of each point of the film material 201 using an external temperature measuring device. To ensure uniform heating of the film material 201 by the heating assembly 1, the temperature difference of each preset monitoring point must be within a preset range.

[0044] Step S103 : when the difference is not within the preset range, a preset temperature compensation formula is used to calculate the compensation temperature of the temperatures of the plurality of preset monitoring points.

[0045] In step S103, the preset temperature compensation formula is: T = T0-[(Th-Tl) / 2+Tl], where T represents the compensation temperature, T0 represents the temperature of the reference monitoring point 201a, Th represents the highest temperature among the temperatures of several edge monitoring points 201b, and Tl represents the lowest temperature among the temperatures of several edge monitoring points 201b.

[0046] In step S104 , the initial heating power of the corresponding heating element is adjusted according to the compensation temperature, and the temperatures of the plurality of preset monitoring points are re-monitored until the temperature difference of each preset monitoring point is within a preset range.

[0047] In step S104, when it is determined that the temperature difference of a preset monitoring point is not within the preset range, the heating temperature, heating temperature change rate, etc. of the corresponding heating element can be adjusted by adjusting the initial heating power of the heating element corresponding to the monitoring point.

[0048] For example, the heating assembly 1 in the heating device 100 is composed of an array of five first heating elements 121 and five second heating elements 131. The five first heating elements 121 are designated A1, A2, ..., A5, and the five second heating elements 131 are designated B1, B2, ..., B5. The initial heating power of the five first heating elements 121 and the five second heating elements 131 is designated as 100%. The temperature of the geometric center and various points of the film material 201 is pre-monitored by external temperature measurement equipment, and a reference monitoring point 201a and edge monitoring points 201b1, 201b2, 201b3, and 201b4 are designated. Among them, the heating elements corresponding to the reference monitoring point 201a are A3 and B3, the heating elements corresponding to the edge monitoring point 201b1 are A1 and B1, the heating elements corresponding to the edge monitoring point 201b2 are A5 and B1, the heating elements corresponding to the edge monitoring point 201b3 are A1 and B5, and the heating elements corresponding to the edge monitoring point 201b4 are A5 and B5. When the temperature difference of the edge monitoring point 201b1 is detected to be not within the preset range, the corresponding compensation temperature of the edge monitoring point 201b1 is first calculated, and then the adjusted expected heating temperature is obtained based on the compensation temperature, and the adjustment power is correspondingly obtained to adjust the initial heating power of the heating elements A1 and / or B1 based on the adjustment power. Afterwards, the temperatures of multiple preset monitoring points are re-monitored until the temperature difference of each preset monitoring point is within the preset range.

[0049] Furthermore, after adjusting the initial heating power of a portion of the first heating element 121 and / or a portion of the second heating element 131, the initial heating power of the remaining first heating elements 121 and / or the remaining second heating elements 131 may be adjusted accordingly, ensuring that when adjusting the initial heating power of the portion of the first heating element 121 and / or the portion of the second heating element 131, the effect of the heating assembly 1 on the heating of the remaining portions of the film 201 is reduced, thereby maintaining the uniformity of heating of the film 201. For example, when the temperature difference at the reference monitoring point 201a is detected to be outside the preset range and the heating power of heating elements A3 and / or B3 is adjusted to 70%, in order to reduce the effect of the heating assembly 1 on the heating of the remaining portions of the film 201, while maintaining the heating power of heating elements A1, A5, B1, and B5 unchanged, the heating power of heating elements A2, A4 and / or B2, B4 may be adjusted to 85%, and the temperatures of the plurality of preset monitoring points may be re-monitored.

[0050] In this embodiment, the temperature control method further includes the following steps: when the difference is not within a preset range, adjusting the spacing between the corresponding first heating elements 121 and / or the spacing between the corresponding second heating elements 131. For example, if the preset temperature value is set to 110°C, when the temperature value of the reference monitoring point 201a is greater than 110°C, the heating of the reference monitoring point 201a by the heating assembly 1 can be reduced by adjusting the spacing between the heating elements A3 and / or B3 and the remaining heating elements, and the temperatures of the multiple preset monitoring points can be re-monitored.

[0051] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0052] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0053] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to actual needs.

[0054] In the above embodiment, the first and second heating assemblies are arranged in an array, and the spacing between adjacent heating elements in each heating assembly is adjustable and slidable, resulting in a more uniform heating area and flexible adaptation to different film shapes and sizes. Furthermore, the temperature control assembly can individually adjust the heating power of each heating element based on preset film material parameters and real-time temperature data, and also allows the user to adjust the spacing between the heating elements, achieving precise control over the film heating process.

[0055] Obviously, those skilled in the art may make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application is intended to include such modifications and variations.

[0056] It should be understood that although the steps in the flowcharts of the accompanying drawings are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the flowcharts of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0057] The above examples are merely preferred embodiments of the present application and are not intended to limit the scope of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope of the present application.

Claims

1. A heating device for heating a film material, characterized in that: The heating device comprises: A heating assembly comprising a body, and a first heating assembly and a second heating assembly mounted on the body, wherein the first heating assembly comprises a plurality of first heating elements arranged in parallel, and the second heating assembly comprises a plurality of second heating elements arranged in parallel; wherein the first heating assembly and the second heating assembly are arranged overlappingly, so that the plurality of first heating elements and the plurality of second heating elements are arranged in an array; and The temperature control component is used to independently adjust the heating power of each first heating element and each second heating element so that each first heating element and each second heating element heats the film material.

2. The heating device according to claim 1, wherein The interval between two adjacent first heating elements and / or the interval between two adjacent second heating elements is adjustable.

3. The heating device according to claim 2, characterized in that Each first heating element and / or each second heating element is slidably mounted on the body.

4. The heating device according to claim 3, characterized in that The main body is provided with a slide groove, which includes two groups of oppositely arranged first slide grooves and two groups of oppositely arranged second slide grooves. The two ends of each first heating element are respectively fixed to the two groups of first slide grooves and can slide operatively; the two ends of each second heating element are respectively fixed to the two groups of second slide grooves and can slide operatively.

5. The heating device according to claim 4, characterized in that Both ends of each first heating element and / or each second heating element are mounted on the main body through a mounting portion, and each mounting portion includes a locking portion and an operating portion; the locking portion is used to lock one end of the corresponding first heating element or second heating element to the main body or unlock it from the main body; the operating portion is used for allowing a user to move the corresponding first heating element or second heating element along the corresponding first slide groove or second slide groove.

6. The heating device according to claim 1, wherein The temperature control component includes a temperature controller, a first sensor and several second sensors, wherein the first sensor and the several second sensors are respectively used to monitor the film material temperature at multiple preset monitoring points on the film material; the temperature controller is used to set the initial heating power of each first heating element and the second heating element according to the preset film material parameters, and adjust the initial heating power of the corresponding first heating element and / or second heating element according to the film material temperature at the multiple preset monitoring points.

7. The heating device according to claim 6, characterized in that The plurality of preset monitoring points include a reference monitoring point and a plurality of edge monitoring points. The reference monitoring point is located at the geometric center of the film material. The plurality of edge monitoring points correspond one-to-one to the plurality of second sensors and are arranged around the geometric center of the film material.

8. The heating device according to claim 1, wherein the first heating element and the second heating element are infrared heating devices.

9. A film laminating device, characterized in that: The film laminating equipment includes: A film laminating device, used to laminarize the film material onto the workpiece to be laminarized; and The heating device according to any one of claims 1 to 8.

10. A temperature control method for a heating device, characterized in that: The temperature control method comprises: Providing a plurality of first heating elements and a plurality of second heating elements arranged in an array, and setting an initial heating power of each first heating element and each second heating element according to preset film material parameters, so that each first heating element and each second heating element generates heat according to the corresponding initial heating power; Specifying a plurality of preset monitoring points in the film material, monitoring the temperatures of the plurality of preset monitoring points, and determining whether the difference in temperature of each preset monitoring point is within a preset range; When the difference is not within the preset range, a preset temperature compensation formula is used to calculate the compensation temperature of the temperatures of the plurality of preset monitoring points; According to the compensation temperature, the initial heating power of the corresponding heating element is adjusted, and the temperatures of the plurality of preset monitoring points are re-monitored until the difference in temperature of each preset monitoring point is within the preset range.

11. The temperature control method of a heating device according to claim 10, wherein: The multiple preset monitoring points include a reference monitoring point and several edge monitoring points; the preset temperature compensation formula is: T=T0-[(Th-Tl) / 2+Tl], wherein T represents the compensation temperature, T0 represents the temperature of the reference monitoring point, Th represents the highest temperature among the temperatures of the several edge monitoring points, and Tl represents the lowest temperature among the temperatures of the several edge monitoring points.

12. The temperature control method of a heating device according to claim 10, wherein: The temperature control method further comprises: When the difference is not within the preset range, the intervals of the corresponding first heating elements and / or the intervals of the corresponding second heating elements are adjusted.

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