Coating method and coating production line for HUD freeform mirror

Abstract

The application discloses a coating method and a coating production line for a HUD free-form mirror, which acquires production information of a product to be coated, automatically calls corresponding jigs, and has multiple coating devices, so that the coating device to which the product to be coated goes is selected according to a priority order of the coating device to which the product to be coated goes and a residual working time length of each coating device, so that the coating device to which the product to be coated goes has the highest priority on the premise that the residual working time length is less than a preset value, the coating device with the high priority has a good coating effect on the product, and after the coated product is taken off from the jig after coating is completed, the jig can flow back to a jig warehouse. The application has high automation and high coating efficiency.

Description

Technical Field

[0001] This invention relates to the field of coating equipment technology, specifically a coating method and coating production line for a HUD freeform surface mirror. Background Technology

[0002] Head-up display (HUD), also known as a head-up display system, projects important driving information such as speed and navigation onto the windshield in front of the driver, allowing the driver to see this information without looking down or turning their head.

[0003] HUD technology can prevent drivers from being distracted by looking down at the instrument panel or other displays while driving, thus improving driving safety and providing a better driving experience. In recent years, it has received increasing attention and has great application potential in the field of in-vehicle intelligent displays.

[0004] Freeform mirrors are a key component in HUDs, used to project the image from the LCD screen onto the car windshield. In order for the freeform mirrors to reflect light, they need to be coated during the production process. Currently, the freeform mirrors are usually placed into the coating machine manually, and then the coating machine is started to coat them. This method has a low degree of automation and low coating efficiency. Summary of the Invention

[0005] This application provides a coating method and coating production line for HUD freeform surface mirrors, which has a high degree of automation and high coating efficiency.

[0006] The coating method for the HUD freeform surface mirror provided in this application is characterized by including:

[0007] Number the multiple coating equipment and multiple fixtures;

[0008] Obtain the production information of the product to be coated, including the process parameters of the product to be coated, the number of the fixture to be used, the preset coating time, and the priority order of the coating equipment to which the product to be coated is to be.

[0009] According to the jig number required for the product to be coated, retrieve the corresponding jig to the loading station;

[0010] Fix the product to be coated onto the selected fixture;

[0011] Select the coating equipment to which the product to be coated is to be coated based on the priority order of the coating equipment to be coated and the remaining working time of each coating equipment.

[0012] The fixture carrying the product to be coated is transported to the selected coating equipment, and the process parameters of the product to be coated are sent to the selected coating equipment, which then coats the product.

[0013] After the coating is completed, the fixture carrying the coated product is transported to the unloading station, and the coated product is removed from the fixture.

[0014] The jigs are returned to the jig storage;

[0015] The remaining working time of the coating equipment is the difference between the preset coating time of the product currently being coated by the coating equipment and the time that the coating equipment has already coated the product currently being coated. Under the premise that the remaining working time of the coating equipment is less than the preset value, the coating equipment with the highest priority is selected as the coating equipment to which the product to be coated is to be coated.

[0016] Preferably, fixtures with different numbers are suitable for different product types, and / or have different sizes, and / or can hold different quantities of products.

[0017] Preferably, the product to be coated has a barcode, and the production information of the product to be coated can be obtained by scanning the barcode.

[0018] The coating production line for the HUD freeform surface mirror provided in this application includes:

[0019] The barcode scanning device is used to scan the barcode on the product to be coated in order to obtain the production information of the product to be coated. The production information includes the process parameters of the product to be coated, the number of the fixture to be used, the preset coating time, and the priority order of the coating equipment to which the product to be coated is to be.

[0020] The conveyor line has a loading station and a unloading station;

[0021] Multiple coating equipment;

[0022] The jig warehouse contains multiple jigs. It is used to retrieve the corresponding jig to the loading station according to the jig number required for the product to be coated. When the retrieved jig is at the loading station, the product to be coated is fixed onto the retrieved jig.

[0023] The control system selects the appropriate coating equipment for the product based on its priority and the remaining operating time of each equipment. It then controls the conveyor line to transport the fixture carrying the product to the selected equipment and sends the product's process parameters to that equipment. After coating is completed, the system controls the conveyor line to transport the fixture carrying the coated product to the unloading station. Once the fixture is at the unloading station, the coated product is removed from the fixture. Finally, the system controls the conveyor line to return the fixture to the fixture storage.

[0024] The conveyor line has a sealed conveying channel and a fan filter unit for supplying air to the conveying channel. There are upper and lower conveying channels between the loading and unloading stations, both equipped with multi-rail speed-multiplying chains to move the fixture. The loading station has a loading lifting speed-multiplying chain to lift the fixture to the upper conveying channel. The unloading station has an unloading lifting speed-multiplying chain to lower the fixture to the lower conveying channel after the coated product is removed from the fixture.

[0025] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0026] The coating method of this application can automatically retrieve the corresponding fixture by acquiring the production information of the product to be coated. Since there are multiple coating machines, the optimal coating machine for the product to be coated can be selected based on its priority order and the remaining working time of each machine. This ensures that the machine with the highest priority, provided its remaining working time is less than a preset value, produces a better coating effect. After coating is completed and the coated product is removed from the fixture, the fixture can be returned to the fixture library. The coating method and production line of this application have a high degree of automation when coating HUD freeform mirrors, and can select the optimal coating machine from multiple machines, resulting in high coating efficiency and good coating effect. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the coating production line of the present invention. Detailed Implementation

[0029] like Figure 1 As shown, the HUD freeform mirror coating production line of this embodiment includes a barcode scanning device, a conveyor line 10, multiple coating machines 20, a jig library, and a control system.

[0030] The product to be coated has a QR code attached, and the information corresponding to the QR code can be obtained by scanning the QR code.

[0031] The barcode scanning device is used to scan the barcode on the product to be coated in order to obtain the production information of the product. The production information includes the process parameters of the product to be coated, the number of the fixture to be used, the preset coating time, and the priority order of the coating equipment to which the product to be coated is to be. The barcode scanning device is connected to the control system.

[0032] The conveyor line 10 is used to transport the fixture. To prevent the product to be coated from getting dusty, the conveyor channel of the conveyor line is sealed. A fan filter unit 13 is installed on the conveyor line to supply air to the conveyor channel. The fan filter unit 13 filters the outside air and sends it into the conveyor channel of the conveyor line, so that the conveyor channel of the conveyor line is under positive pressure. In this way, the air blows outward from the sealed part of the conveyor channel of the conveyor line, and the outside dust cannot enter the conveyor channel of the conveyor line through the sealed part. The conveyor line has a loading station 11 and a unloading station 12. The loading station 11 and the unloading station 12 also blow outward, so that the outside dust cannot enter the conveyor channel of the conveyor line through the loading station 11 and the unloading station 12.

[0033] The jig warehouse is an automated warehouse system. The jig warehouse contains multiple jigs. The jig warehouse can retrieve the corresponding jig to the loading station of the conveyor line according to the jig number of the product to be coated. When the retrieved jig is at the loading station, the product to be coated is fixed onto the retrieved jig.

[0034] The control system is used to select the coating equipment to which the product to be coated is to be coated based on the priority order of the coating equipment to which the product to be coated is to be coated and the remaining working time of each coating equipment.

[0035] Then, the conveyor line is controlled to transport the fixture carrying the product to be coated to the selected coating equipment, and the process parameters of the product to be coated are sent to the selected coating equipment.

[0036] Then, after the coating equipment finishes coating the product to be coated, the conveyor line is controlled to transport the fixture carrying the coated product to the unloading station. When the fixture carrying the coated product is at the unloading station, the coated product is removed from the fixture.

[0037] Then control the conveyor line to return the fixture to the fixture library.

[0038] The conveyor line has an upper conveyor channel and a lower conveyor channel between the loading station and the unloading station. Both the upper and lower conveyor channels are equipped with multi-rail speed-increasing chains to drive the jigs.

[0039] The loading station of the conveyor line is equipped with a loading lifting double-speed chain, which is used to lift the fixtures retrieved from the fixture warehouse to the upper conveyor channel, so that the operator can place the product to be coated on the fixture. After the product to be coated is placed on the fixture, the fixture can be transported to the selected coating machine through the upper conveyor channel.

[0040] The unloading station of the conveyor line has a high-speed unloading lifting chain, which is used to lower the fixture to the lower conveyor channel after the operator removes the coated product from the fixture. The fixture can then be returned to the fixture warehouse through the lower conveyor channel.

[0041] Each coating equipment 20 is equipped with an automatic loading and unloading mechanism. When the conveyor line 10 transports the fixture containing the product to be coated from the loading station 11 to the feeding position of the selected coating equipment 20, the automatic loading and unloading mechanism of the selected coating equipment 20 loads the fixture containing the product to be coated from the conveyor line 10 to the coating equipment 20. After the coating equipment 20 completes the coating of the product to be coated, the automatic loading and unloading mechanism of the coating equipment 20 unloads the fixture containing the coated product to the conveyor line 10, so that the conveyor line 10 can transport the fixture to the unloading station 12.

[0042] The coating method for the HUD freeform surface mirror in this embodiment includes:

[0043] Multiple coating equipment and multiple fixtures are numbered, and multiple fixtures are placed in a fixture warehouse, which is an automated warehouse system.

[0044] The product to be coated has a barcode. By scanning the barcode, the production information of the product to be coated can be obtained. The production information includes the process parameters of the product to be coated, the number of the fixture to be used, the preset coating time, and the priority order of the coating equipment to which the product to be coated. The coating machine with higher priority has better performance, and the coating machine with lower priority has relatively poor performance.

[0045] According to the jig number required for the product to be coated, retrieve the corresponding jig to the loading station;

[0046] The operator fixes the product to be coated onto the selected fixture;

[0047] Based on the priority order of the coating equipment to which the product to be coated is to be selected and the remaining working time of each coating equipment, the coating equipment to which the product to be coated is to be selected is selected. Under the premise that the remaining working time of the coating equipment is less than the preset value, the coating equipment with the highest priority is selected as the coating equipment to which the product to be coated is to be coated. In this way, when the waiting time is short, the coating equipment with higher priority is selected as much as possible, so that the utilization rate of the coating equipment with better performance is higher, thereby improving the coating quality and coating efficiency.

[0048] The jig carrying the product to be coated is transported to the selected coating equipment via a conveyor line, and the process parameters of the product to be coated are sent to the selected coating equipment, which then coats the product.

[0049] After the coating is completed, the jig carrying the coated product is transported to the unloading station via a conveyor line, and the operator removes the coated product from the jig.

[0050] The fixtures are returned to the fixture storage via a conveyor line.

[0051] The remaining working time of the coating equipment is the difference between the preset coating time of the product currently being coated and the time that the coating equipment has already coated the product. Specifically, when the coating equipment starts coating, time 1 is recorded. When querying the remaining working time of the coating equipment, time 2 is recorded. The time between time 1 and time 2 is the current working time of the coating equipment. Then, the difference between the preset coating time of the product currently being coated and the above-mentioned current working time is the remaining working time of the coating equipment.

[0052] Different numbered fixtures are suitable for different product types and / or have different sizes and / or can hold different quantities of products.

[0053] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0054] This specification and accompanying drawings are merely illustrative examples of this application and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Therefore, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A coating method for a freeform surface mirror for a head-up display (HUD), characterized in that, include: Number the multiple coating equipment and multiple fixtures; Obtain the production information of the product to be coated, including the process parameters of the product to be coated, the number of the fixture to be used, the preset coating time, and the priority order of the coating equipment to which the product to be coated is to be. According to the jig number required for the product to be coated, retrieve the corresponding jig to the loading station; Fix the product to be coated onto the selected fixture; Select the coating equipment to which the product to be coated is to be coated based on the priority order of the coating equipment to be coated and the remaining working time of each coating equipment. The fixture carrying the product to be coated is transported to the selected coating equipment, and the process parameters of the product to be coated are sent to the selected coating equipment, which then coats the product. After the coating is completed, the fixture carrying the coated product is transported to the unloading station, and the coated product is removed from the fixture. The jigs are returned to the jig storage; The remaining working time of the coating equipment is the difference between the preset coating time of the product currently being coated by the coating equipment and the time that the coating equipment has already coated the product currently being coated. Under the premise that the remaining working time of the coating equipment is less than the preset value, the coating equipment with the highest priority is selected as the coating equipment to which the product to be coated is to be coated.

2. The coating method according to claim 1, characterized in that, Different numbered fixtures are suitable for different product types and / or have different sizes and / or can hold different quantities of products.

3. The coating method according to claim 1, characterized in that, The product to be coated has a barcode, and the production information of the product can be obtained by scanning the barcode.

4. A coating production line for a HUD freeform surface mirror, characterized in that, include: The barcode scanning device is used to scan the barcode on the product to be coated in order to obtain the production information of the product to be coated. The production information includes the process parameters of the product to be coated, the number of the fixture to be used, the preset coating time, and the priority order of the coating equipment to which the product to be coated is to be. The conveyor line has a loading station and a unloading station; Multiple coating equipment; The jig warehouse contains multiple jigs. It is used to retrieve the corresponding jig to the loading station according to the jig number required for the product to be coated. When the retrieved jig is at the loading station, the product to be coated is fixed onto the retrieved jig. The control system selects the appropriate coating equipment for the product based on its priority and the remaining operating time of each equipment. It then controls the conveyor line to transport the fixture carrying the product to the selected equipment and sends the product's process parameters to that equipment. After coating is completed, the system controls the conveyor line to transport the fixture carrying the coated product to the unloading station. Once the fixture is at the unloading station, the coated product is removed from the fixture. Finally, the system controls the conveyor line to return the fixture to the fixture storage. The conveyor line has a sealed conveying channel and a fan filter unit for supplying air to the conveying channel. There are upper and lower conveying channels between the loading and unloading stations, both equipped with multi-rail speed-multiplying chains to move the fixture. The loading station has a loading lifting speed-multiplying chain to lift the fixture to the upper conveying channel. The unloading station has an unloading lifting speed-multiplying chain to lower the fixture to the lower conveying channel after the coated product is removed from the fixture.

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