A laser drying method for an automotive sun visor

Abstract

This invention provides a laser drying method for automotive glass sunshade strips, comprising the following steps: S1: placing an automotive glass strip printed with sunshade strips horizontally on a worktable, and obtaining a predetermined extension path for the undried sunshade strips on the automotive glass surface by a control system; S2: forming a light spot for irradiating the sunshade strips using a laser module; the laser module includes a laser source and a shaping component, wherein the laser source emits laser light, which is shaped by the shaping component to form the light spot; S3: controlling the movement of the laser module or the worktable, and irradiating the sunshade strips with the light spot; S4: the control system controls the movement of the laser module or the worktable according to the predetermined extension path, so that the light spot irradiates and completely dries the entire sunshade strip; with the cooperation of the control system and the laser module, the light spot formed by the laser module irradiates the sunshade strips, causing heat to quickly accumulate on the surface of the sunshade strips and dry them, reducing energy consumption and cost, and improving the drying efficiency of the sunshade strips.

Description

Technical Field

[0001] This invention relates to the field of automotive glass, and in particular to a laser drying method for automotive glass sunshades. Background Technology

[0002] On cars driven in daily life, you can often see a "black border" around the outer edge of the windshield. This "black border" is usually called a sunshade. The sunshade can cover the glue and rubber strips that are installed on the windshield frame, so that the glue and rubber strips will not come apart or age after long-term exposure to sunlight. At the same time, it makes the whole car look simple and elegant.

[0003] During the molding process, the sunshade is typically formed by printing blackened paste-like ink onto the surface of the car glass near the edge using a printing press. The ink layer on the car glass is then dried to form the sunshade. However, existing drying technologies are insufficient to meet the demands for low-cost and high-efficiency production.

[0004] Natural drying is inefficient. Current drying methods involve using ovens to dry automotive glass, but these ovens typically use electricity or natural gas to generate heat, requiring significant energy and cost. Furthermore, preheating the oven takes considerable time. During the drying process, most of the heat generated dissipates to the outside, with less than 20% being used to dry the ink layer. Therefore, this drying method is inefficient and consumes a lot of energy and is costly. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention aims to provide a laser drying method for automotive glass sunshades. With the cooperation of a control system and a laser module, a laser spot is formed by the laser module and irradiates the sunshade, causing heat to rapidly accumulate on the surface of the sunshade and drying it. This reduces energy consumption and costs, and improves the drying efficiency of the sunshade.

[0006] The technical solution of this invention is implemented as follows: A laser drying method for automotive window sunshade strips includes the following steps: S1: Place the car glass with the sunshade strip printed on it horizontally on the worktable, and the control system obtains the predetermined extension path of the sunshade strip on the undried surface of the car glass. S2: The laser module forms a light spot for illuminating the sunshade belt; the laser module includes a laser source and a shaping component, the laser source emits laser light and the light spot is formed after being shaped by the shaping component; S3: Control the movement of the laser module or worktable and make the light spot illuminate the sunshade; S4: The control system moves the laser module or worktable according to the predetermined extension path, so that the light spot irradiates and completely dries the entire sunshade.

[0007] Preferably, the control system also controls an image capture module. In step S1, the control system controls the image capture module to move above the car glass surface, captures and feeds back an image of the undried sunshade strip on the car glass surface to the control system. The control system determines the predetermined extension path of the undried sunshade strip based on the captured image. The image capture module can quickly feed back the relevant parameters of the sunshade strip on the car glass surface to the control system for analysis, and determine the movement range and path of the laser module or the worktable.

[0008] Preferably, the control system is also electrically connected to a data transmission device. In step S1, the predetermined extension path parameters of the sunshade are pre-stored in a storage device. The storage device is connected to the data transmission device so that the control system can obtain the predetermined extension path parameters of the sunshade.

[0009] Preferably, in step S2, the width of the light spot formed by the laser module is greater than or equal to the maximum width of the sunshade strip; so that in step S4, the light spot covers the sunshade strip in the width direction, and the laser module or worktable moves along a predetermined extension path so that the light spot completely dries the entire sunshade strip.

[0010] Preferably, in step S1, the control system simultaneously obtains the maximum width of the undried sunshade strip on the car glass surface; in step S2, the control system adjusts the width of the light spot according to the maximum width, so that the width of the light spot is greater than or equal to the width of the sunshade strip.

[0011] Preferably, an electrically controlled zoom lens system electrically connected to the control system is installed between the laser source and the shaping component. In step S2, the control system adjusts the focal length of the electrically controlled zoom lens system according to the maximum width so that the width of the light spot is greater than or equal to the width of the sunshade. This allows the width of the light spot to be dynamically adjusted according to the maximum width of the sunshade, ensuring that sunshades of different widths can be dried.

[0012] Preferably, the control system has multiple printing thickness parameters of different sizes for the sunshade strip pre-stored. The moving speed of the laser module or the worktable is inversely proportional to the size of the printing thickness parameter. In step S4, the control system determines the moving speed of the laser module or the worktable according to the corresponding printing thickness parameter, so that the sunshade strip of the corresponding printing thickness is dried in place.

[0013] Preferably, the laser module or worktable is mounted on an XY platform controlled by a control system.

[0014] Preferably, the shaping component is a DOE shaping component, and in step S3, the laser forms the light spot after being shaped by the DOE shaping component.

[0015] Preferably, the light spot is a rectangular light spot or a circular light spot, and the maximum width of the rectangular light spot or the circular light spot is t, and the size of t is 0 < t ≤ 50 mm.

[0016] Preferably, the laser module is connected to a humidity detection module that is electrically connected to the control system. The humidity detection module includes a humidity detector. After step S4, there is another step. S5: The humidity detector detects and feeds back the humidity parameters of the sunshade to the control system; S6: The control system compares the obtained humidity parameters with the predetermined standard parameters. If the humidity parameters do not reach the predetermined parameters, steps S3-S5 are repeated until the humidity parameters of the shade belt reach the predetermined standard parameters. This avoids the problem of inadequate drying of the shade belt by light spots and ensures the drying quality of the shade belt.

[0017] Preferably, the light spot can be adjusted to the maximum limit width s by the shaping component. In step S1, the control system simultaneously obtains the maximum width of the sunshade strip that is not dried on the surface of the car glass. When the maximum width of the sunshade strip obtained by the control system is greater than s, the control system divides the sunshade strip into several annular strips of the same width along the width direction according to the maximum width of the sunshade strip. In step S2, the width of the laser spot formed by the laser module is equal to the width of the annular band; In step S3, the control system controls the laser module or worktable to move and make the light spot illuminate the first annular strip near the inner or outer side of the sunshade. In step S4, the control system controls the laser module or worktable to move along a predetermined extension path so that the light spot irradiates and dries the corresponding annular strip; then the control system controls the laser module or worktable to move so that the light spot is aligned with the next annular strip; this process is repeated until the light spot dries all the annular strips; drying can continue even after the width of the sunshade strip exceeds the limit width s without needing to replace it with a larger shaping component.

[0018] Preferably, in step S2, the length of the light spot formed by the laser module is D, and the maximum width of the car glass in the length direction of the light spot is d, where D > d; in step S4, the control system controls the laser module or the worktable to move horizontally along the width direction of the light spot, so that the light spot irradiates and completely dries the entire sunshade.

[0019] The beneficial effects of the present invention, which adopts the above technical solution, are as follows: After the control system obtains the predetermined extension path of the sunshade strip on the car window, the present invention uses a laser module to irradiate the sunshade strip with a light spot, so that the heat generated by the light spot is quickly concentrated on the surface of the sunshade strip, thereby drying the sunshade strip. Compared with the drying method of using an oven, the laser drying method consumes less energy, saves drying costs, and improves the drying efficiency of the sunshade strip.

[0020] The control system in this invention dynamically adjusts the light spot formed by the laser module based on the maximum width of the sunshade strip on the car window and the electronic zoom lens system, so that the width of the light spot is greater than or equal to the maximum width of the sunshade strip. This ensures that the light spot can cover the sunshade strip of the corresponding width in the width direction, guaranteeing that the light spot can always irradiate and dry the sunshade strip of the corresponding width when the laser module or worktable moves along the predetermined path of the sunshade strip.

[0021] The electronically controlled zoom lens system and the shaping component in the laser module work together to adjust the width of the entire light spot to the limit width s. When the maximum width of the sunshade on the car glass exceeds the limit width s, the present invention can divide the entire sunshade into several annular bands of equal width through the control system. The width of the annular bands is smaller than the width of the sunshade, so the light spot can cover the annular bands. Thus, when the control system moves the laser module or the worktable, the light spot dries multiple annular bands one by one. It is not necessary to replace the electronically controlled zoom lens system and shaping component with larger specifications, which reduces processing costs and expands the width range of the sunshade drying.

[0022] The thicker the sunshade is printed on the car glass, the longer the light spot needs to irradiate it to ensure the drying effect of the sunshade. Therefore, the control system in this invention pre-stores multiple different printing thickness parameters and controls the moving speed of the laser module or the worktable according to the corresponding thickness parameters. This makes the light spot move slower on the thicker sunshade, thus fully drying the thicker sunshade. On the other hand, the light spot moves slower on the thinner sunshade, preventing the thinner sunshade from being over-dried and scorched by the light spot. Attached Figure Description

[0023] Figure 1 This is a diagram showing a sunshade strip that has not dried on a car window. Figure 2 A schematic diagram showing that the width of the light spot formed by the laser module is greater than the width of the sunshade strip; Figure 3 A schematic diagram showing that the width of the laser spot formed by the laser module is equal to the width of the sunshade. Figure 4 A schematic diagram showing that the sunshade belt is divided into multiple ring-shaped zones; Figure 5 This is a schematic diagram showing the light spot shining on the first annular band inside the shade belt; Figure 6 This is a schematic diagram showing the light spot shining on the last ring-shaped band on the outer side of the sunshade. Figure 7 This is a simplified schematic diagram of the laser module and the humidity detection module. Figure 8 This is a structural diagram of a laser drying equipment; Figure 9 This is a schematic diagram of Example 2, showing that the length of the light spot is greater than the maximum width of the car glass; Figure 10 This is a flowchart illustrating the steps of the method of the present invention; The attached figures are labeled as follows: 1-glass body, 2-sunshade strip, 3-laser module, 4-humidity detector, 5-XY platform, 5-worktable, 21-ring belt, 31-light spot, 32-DOE shaping component, 33-electronically controlled zoom lens system, 34-laser source. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0026] This invention has multiple embodiments, and the specific implementation methods are as follows: Example 1: As Figure 1-8 As shown, to improve the drying efficiency of the sunshade strip 2 on the car window, this embodiment provides a laser drying method for the car window sunshade strip, including the following steps: S1: As shown in the figure, the inner edge of the glass body 1 is printed with a sunshade strip 2 made of ink material. The car glass with the sunshade strip 2 printed on it is placed horizontally on the worktable 5, and the control system obtains the predetermined extension path of the sunshade strip 2 on the surface of the car glass that has not been dried. The control system (not shown) in this embodiment is a general control system that integrates controllers, sensors and actuators. It can accept, provide feedback and control the modules or components electrically connected to it to execute or stop corresponding instructions in an orderly manner. S2: The laser module 3 forms a light spot 31 for illuminating the sunshade 2; the laser module 3 includes a laser source 34 and a shaping component, the laser source 34 emits laser light and the light spot 31 is formed after being shaped by the shaping component. S3: Control the laser module 3 or the worktable 5 to move and make the light spot 31 irradiate the sunshade 2; S4: The control system controls the laser module 3 or the worktable 5 to move according to the predetermined extension path, so that the light spot 31 irradiates and completely dries the entire sunshade 2.

[0027] Furthermore, in this embodiment, the control system acquires the predetermined extension path of the sunshade 2 in two ways. The first way is through the image capture module 7. Specifically, the control system also controls the image capture module 7, which is typically an industrial camera electrically connected to the control system. In step S1, after the control system moves the image capture module 7 above the car glass surface, it captures and feeds back an image of the undried sunshade 2 on the car glass surface to the control system. The control system determines the predetermined extension path of the undried sunshade 2 based on the captured image. The image capture module 7 can quickly feed back the relevant parameters of the sunshade 2 on the car glass surface to the control system for analysis, determining the laser module 3 or the worktable 5. The movement range and path; the second method is to manually import the relevant parameters of the sunshade 2 by the operator. Specifically, the control system is also electrically connected to a data transmission device, which includes, but is not limited to, Bluetooth modules, network interface cards, etc.; in step S1, the predetermined extension path parameters of the sunshade 2 are pre-stored in a storage device, which includes, but is not limited to, optical discs, solid-state drives, USB flash drives that are directly inserted into a computer, etc.; the storage device is connected to the data transmission device so that the control system can obtain the predetermined extension path parameters of the sunshade 2; for example, CAD drawings of car glass and sunshade 2 can be stored in a USB flash drive, and the USB flash drive can be inserted into a computer to import the corresponding parameters of the sunshade 2 into the control system.

[0028] Furthermore, such as Figure 2-3 As shown, in this embodiment, the control system controls the movement of the laser module 3 or the worktable 5 according to the predetermined extension path. This means that when the laser module 3 or the worktable 5 moves, the control system causes the light spot 31 to travel along the predetermined extension path of the sunshade 2 to every part of the sunshade 2, thus drying the sunshade 2. Therefore, in step S2, the width of the light spot 31 formed by the laser module 3 is greater than or equal to the maximum width of the sunshade 2, so that in step S4, the light spot 31 covers the sunshade 2 in the width direction. For example, when the width of the sunshade 2 is 20mm, the width of the light spot 31 can be greater than or equal to 20mm to cover the sunshade 2 in the width direction. When the laser module 3 or the worktable 5 moves along the predetermined extension path, the light spot 31 will gradually dry every part of the sunshade 2 until the light spot 31 completely dries the entire sunshade 2.

[0029] Furthermore, such as Figure 7-8As shown, to facilitate drying sunshade strips 2 of various specifications, this embodiment can also dynamically adjust the light spot 31 according to the different maximum widths of the sunshade strip 2. Specifically, in step S1, the control system simultaneously obtains the maximum width of the sunshade strip 2 that is not dried on the car glass surface; in step S2, the control system adjusts the width of the light spot 31 according to the maximum width, so that the width of the light spot 31 is greater than or equal to the width of the sunshade strip 2; the dynamic adjustment of the light spot 31 is achieved through the electronically controlled zoom lens system 33, which is an existing integrated zoom device, which includes a moving optical lens assembly, a fixed optical lens assembly, a drive motor, and corresponding electrical control components. The drive motor can drive The movable optical lens assembly moves and changes its focal length; the device is equipped with a circuit interface, which is connected to a computer via a transmission line, allowing it to be electrically connected to the control system; this device is a conventional component and can be purchased from major e-commerce platforms or websites, and its specific structure will not be described in detail here; in this embodiment, an electrically controlled zoom lens system 33, which is electrically connected to the control system, is installed between the laser source 34 and the shaping assembly. In step S2, the control system adjusts the focal length of the electrically controlled zoom lens system 33 according to the maximum width, so that the width of the light spot 31 is greater than or equal to the width of the sunshade 2; thereby, the width of the light spot 31 can be dynamically adjusted according to the maximum width of the sunshade 2, ensuring that sunshade 2 of different widths can be dried.

[0030] Furthermore, the thicker the sunshade strip 2 is printed on the car glass, the longer the light spot 31 needs to irradiate it, thus ensuring the drying effect of the sunshade strip 2; the thinner the sunshade strip 2 is printed on the car glass, the shorter the light spot 31 needs to irradiate it, thus avoiding over-drying of the sunshade strip 2 by the light spot. Therefore, the control system in this embodiment pre-stores multiple printing thickness parameters of different sizes for the sunshade strip 2, and in this embodiment, the moving speed of the laser module 3 or the worktable 5 is inversely proportional to the size of the printing thickness parameter; that is, the thicker the sunshade strip 2, the longer the light spot 31 stays on the sunshade strip 2, and the thinner the sunshade strip 2, the shorter the time the light spot 31 stays on the sunshade strip 2. The operator can select the thickness parameter of the sunshade strip 2 to be dried in the control system, so that in step S4, the control system determines the moving speed of the laser module 3 or the worktable 5 according to the corresponding printing thickness parameter, so that the sunshade strip 2 of the corresponding printing thickness is dried in place.

[0031] Furthermore, to ensure that the laser module 3 or the worktable 5 can move in the corresponding direction, in this embodiment, the laser module 3 or the worktable 5 is set on an XY platform controlled by the control system; in this embodiment, the laser module 3 is set on the XY platform for explanation; the XY platform can be driven in one direction and control the laser module 3 or the worktable 5 to move independently in the X or Y direction, or it can be multi-axis linked to control the laser module 3 or the worktable 5 to move in the Y direction while moving in the X direction, so as to adapt to the predetermined extension path of the sunshade 2.

[0032] Furthermore, to obtain a stable, high-quality laser spot 31, the shaping component in this embodiment is a DOE shaping component 32. In step S3, the laser beam forms the laser spot 31 after being shaped by the DOE shaping component 32. The DOE shaping component 32 is also called an optical diffraction element, which is usually a circular or rectangular piece with a planar structure made of glass or quartz. The key to DOE is the micron or even nanometer-level patterns or structures finely processed on its surface, thereby shaping the circular laser beam into the required shape. This laser module 3 with a DOE shaping component can be purchased on the market. For example, the laser edge sealing head sold by Henan Xierbei Laser Technology Co., Ltd. has a DOE shaping component 32 installed inside for laser spot shaping.

[0033] Furthermore, the shape of the light spot 31 is diverse, as long as it can cover the width of the sunshade 2. For example, in this embodiment, the light spot 31 is a rectangular light spot or a circular light spot. Considering the range of width variation of sunshade 2 of different specifications on automotive glass processed in daily life, the maximum width range of the rectangular light spot or circular light spot in this embodiment is t, and the size range of t is 0 < t ≤ 50 mm.

[0034] Furthermore, when the light spot 31 dries the sunshade 2 for the first time, the entire sunshade 2 may not be dried properly due to errors or other reasons, resulting in high humidity and unqualified drying. To avoid this situation, in this embodiment, the laser module 3 is connected to a humidity detection module that is electrically connected to the control system. The humidity detection module includes a humidity detector 4, which can be connected via transmission to step S4. After step S4, there is another step. S5: The humidity detector 4 detects and feeds back the humidity parameters of the sunshade 2 to the control system. The control system has pre-stored standard parameters about humidity. S6: The control system compares the obtained humidity parameters with the predetermined standard parameters. When the humidity parameters do not reach the predetermined parameters, steps S3-S5 are repeated until the humidity parameters of the shade belt 2 reach the predetermined standard parameters. This avoids the problem of the light spot 31 not drying the shade belt 2 properly and ensures the drying quality of the shade belt 2.

[0035] Furthermore, the zoom of the electronically controlled zoom lens system 33 is not infinite. Therefore, the light spot 31 can be adjusted to its maximum limit width s by the shaping component. In step S1, the control system simultaneously acquires the maximum width of the undried sunshade 2 on the automotive glass surface. When the maximum width of the sunshade 2 acquired by the control system is greater than s, the light spot 31 will have difficulty covering it in the width direction of the sunshade 2. Directly replacing the electronically controlled zoom lens system 33 would increase processing costs, such as... Figure 4-6 As shown, at this time, the control system divides the sunshade 2 into several annular strips 21 of equal width along the width direction according to the maximum width of the sunshade 2; and performs regional drying; therefore, in step S2, the width of the light spot 31 formed by the laser module 3 is equal to the width of the annular strip 21; in step S3, the control system controls the laser module 3 or the worktable 5 to move, and makes the light spot 31 irradiate the first annular strip 21 near the inner or outer side of the sunshade 2; for example, in this embodiment, drying starts from the first annular strip 21 on the inner side of the sunshade 2; so that the light spot 31 covers the first annular strip 21 in the width direction; in step In S4, the control system controls the laser module 3 or the worktable 5 to move along a predetermined extension path, so that the light spot 31 irradiates and dries the corresponding annular strip 21; then the light spot 31 moves along the predetermined extension path of the first annular strip 21 through every part of the sunshade strip 2, drying the first annular strip 21; then the control system controls the laser module 3 or the worktable 5 to move, so that the light spot 31 is aligned with the next annular strip 21; the cycle is repeated until the light spot 31 dries all the annular strips 21; without needing to replace the shaping component with a larger one, drying can continue even after the width of the sunshade strip 2 exceeds the limit width s.

[0036] Example 2: As Figure 9 The difference between this embodiment and the previous embodiment is that, in this embodiment, controlling the movement of the laser module 3 or the worktable 5 according to the predetermined extension path does not mean that the light spot 31 moves along the predetermined extension path of the sunshade 2. Instead, it means that the control system determines the maximum length of the car glass in the width direction of the light spot 31 according to the predetermined extension path, calculates the length that the laser module 3 or the worktable 5 needs to move, and after determining this length, moves the laser module 3 or the worktable 5 horizontally along the width direction of the light spot 31, so that the light spot 31 passes through its own width direction. Every part of the sunshade 2 is dried; specifically, in step S2, the length of the light spot 31 formed by the laser module 3 is D, and the maximum width of the car glass is d in the length direction of the light spot 31, D>d, so that the light spot 31 can span both sides of the car glass in its own length direction. In step S4, the control system controls the laser module 3 or the worktable 5 to move horizontally along the width direction of the light spot 31. At this time, the light spot 31 will pass through every part of the sunshade 2 in its own width direction, so that the light spot 31 irradiates and completely dries the entire sunshade 2.

[0037] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A laser drying method for automotive glass sunshade strips, characterized in that, Includes the following steps: S1: Place the car glass printed with sunshade strip (2) horizontally on the worktable (5) and obtain the predetermined extension path of the sunshade strip (2) on the surface of the car glass that is not dried by the control system. S2: The laser module (3) forms a light spot (31) for illuminating the sunshade (2); the laser module (3) includes a laser source (34) and a shaping component, the laser source (34) emits laser light and forms the light spot (31) after being shaped by the shaping component. S3: Control the movement of the laser module (3) or the worktable (5) and make the light spot (31) irradiate the sunshade (2); S4: The control system controls the laser module (3) or the worktable (5) to move according to the predetermined extension path, so that the light spot (31) irradiates and completely dries the entire sunshade (2).

2. The laser drying method for automotive glass sunshade strips according to claim 1, characterized in that: The control system also controls an image capture module (7). In step S1, the control system controls the image capture module (7) to move above the car glass surface, captures and feeds back an image of the undried sunshade strip (2) on the car glass surface to the control system. The control system determines the predetermined extension path of the undried sunshade strip (2) based on the captured image.

3. The laser drying method for automotive glass sunshade strips according to claim 1, characterized in that: The control system is also electrically connected to a data transmission device. In step S1, the predetermined extension path parameters of the sunshade (2) are stored in a storage device. The storage device is connected to the data transmission device so that the control system can obtain the predetermined extension path parameters of the sunshade (2).

4. The laser drying method for automotive glass sunshade strips according to claim 1, characterized in that: In step S2, the width of the light spot (31) formed by the laser module (3) is greater than or equal to the maximum width of the sunshade (2); in step S4, the light spot (31) covers the sunshade (2) in the width direction of the sunshade (2), and the laser module (3) or the worktable (5) moves along the predetermined extension path so that the light spot (31) completely dries the entire sunshade (2).

5. The laser drying method for automotive glass sunshade strips according to claim 4, characterized in that: In step S1, the control system simultaneously obtains the maximum width of the sunshade strip (2) on the surface of the car glass that has not been dried; in step S2, the control system adjusts the width of the light spot (31) according to the maximum width so that the width of the light spot (31) is greater than or equal to the width of the sunshade strip (2).

6. The laser drying method for automotive glass sunshade strips according to claim 5, characterized in that: An electrically controlled zoom lens system (33) that is electrically connected to the control system is installed between the laser source (34) and the shaping component. In step S2, the control system adjusts the focal length of the electrically controlled zoom lens system (33) according to the maximum width so that the width of the light spot (31) is greater than or equal to the width of the sunshade (2).

7. The laser drying method for automotive glass sunshade strips according to claim 1, characterized in that: The control system has multiple printing thickness parameters of different sizes for the sunshade (2) stored in advance. The speed of the laser module (3) or the worktable (5) is inversely proportional to the size of the printing thickness parameter. In step S4, the control system determines the speed of the laser module (3) or the worktable (5) according to the corresponding printing thickness parameter so that the sunshade (2) of the corresponding printing thickness is dried in place.

8. The laser drying method for automotive glass sunshade strips according to claim 1, characterized in that: The laser module (3) or the worktable (5) is set on an XY platform controlled by the control system.

9. The laser drying method for automotive glass sunshade strips according to claim 1, characterized in that: The shaping component is a DOE shaping component (32). In step S3, the laser forms the light spot (31) after being shaped by the DOE shaping component (32).

10. The laser drying method for automotive glass sunshade strips according to claim 9, characterized in that: The light spot (31) is a rectangular light spot or a circular light spot. The maximum width of the rectangular light spot or the circular light spot is t, and the size range of t is 0 < t ≤ 50 mm.

11. The laser drying method for automotive glass sunshade strips according to claim 1, characterized in that: The laser module (3) is connected to a humidity detection module that is electrically connected to the control system. The humidity detection module includes a humidity detector (4). After step S4, there is another step. S5: The humidity detector (4) detects and feeds back the humidity parameters of the shade belt (2) to the control system; S6: The control system compares the obtained humidity parameters with the predetermined standard parameters. When the humidity parameters do not reach the predetermined parameters, steps S3-S5 are repeated until the humidity parameters of the shade belt (2) reach the predetermined standard parameters.

12. The laser drying method for automotive glass sunshade strips according to claim 1, characterized in that: The light spot (31) can be adjusted to the maximum limit width s by the shaping component. In step S1, the control system simultaneously obtains the maximum width of the sunshade strip (2) that is not dried on the surface of the car glass. When the maximum width of the sunshade strip (2) obtained by the control system is greater than s, the control system divides the sunshade strip (2) into several ring strips (21) with the same width along the width direction according to the maximum width of the sunshade strip (2). In step S2, the width of the spot (31) formed by the laser module (3) is equal to the width of the annular band (21); In step S3, the control system controls the laser module (3) or the worktable (5) to move and make the light spot (31) irradiate the first annular strip (21) near the inner or outer side of the sunshade strip (2); In step S4, the control system controls the laser module (3) or the worktable (5) to move along a predetermined extension path so that the light spot (31) irradiates and dries the corresponding annular strip (21); then the control system controls the laser module (3) or the worktable (5) to move so that the light spot (31) is aligned with the next annular strip (21); the cycle repeats until the light spot (31) dries all the annular strips (21).

13. The laser drying method for automotive glass sunshade strips according to claim 1, characterized in that: In step S2, the length of the light spot (31) formed by the laser module (3) is D, and the maximum width of the car glass in the length direction of the light spot (31) is d, D>d; in step S4, the control system controls the laser module (3) or the worktable (5) to move horizontally along the width direction of the light spot (31) so that the light spot (31) irradiates and completely dries the entire sunshade (2).

Images