A spraying process and spraying forming system

Abstract

The present application provides a spraying process and a spraying forming system, which relate to the field of spraying and thermoforming technology. The spraying process includes S1: three-dimensional scanning of the sample, obtaining the shape data of the sample, using temperature data and sealing performance data, and inputting the data into the control computer to form a data packet; S2: the control computer calculates the composition and amount of the required materials according to the data packet, and allocates process parameters to the material supply device, spray device, manipulator and drying device; S3: according to the process parameters, the material supply device mixes materials of different components; the spray device adjusts the spraying frequency, speed and pressure parameters; the manipulator grabs the sample and places the sample at the position corresponding to the spray device; the drying device starts heating; S4: control the mixed material to be input into the spray device, spray the sample on the surface, and the manipulator controls the rotation of the sample according to the process parameters; S5: the sprayed sample is placed in the drying device for drying.

Description

Technical Field

[0001] The present application relates to the technical field of spraying and thermoforming, and in particular to a spraying process and a spraying forming system. Background Art

[0002] The high temperature resistant sealing film spraying process mainly applies a layer of sealing film by spraying on the surface of various objects that need to be sealed and withstand high temperature environments. This sealing film can effectively prevent the leakage or penetration of gas, liquid and other media in high temperature environments.

[0003] The existing small-scale spraying equipment lacks intelligence and is mostly in manual or semi-automatic mode. Operators need to manually control parameters such as nozzle displacement, spray start and stop, and material flow, which requires high skills. In addition, it is difficult to operate accurately and consistently, which can easily lead to unstable spraying quality, such as uneven thickness and uneven surface, which affects the seal and appearance. Although large-scale spraying equipment has more comprehensive functions, its high price makes it difficult for many companies and users to adopt it. When spraying high-temperature resistant sealing films, material temperature control and curing are extremely critical. However, the existing large and small equipment has a low degree of integration, and each process link is independent and can only be carried out step by step. For example, the poor connection between the spraying and drying processes not only slows down work efficiency, but also causes defects in the sealing film and unstable performance due to environmental and operational factors during process conversion.

[0004] Therefore, a spraying process is needed to at least solve the above problems. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a spraying process to solve the problem of reduced spraying efficiency and spraying quality due to low automation in the existing high-temperature resistant sealing film spraying process.

[0006] In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0007] The first aspect of the present application provides a spraying process, comprising:

[0008] S1: Perform three-dimensional scanning on the sample to obtain the appearance data of the sample, and at the same time obtain the use temperature data and sealing performance data that the sample needs to achieve, and input the data into the control computer to form a data package;

[0009] S2: The control computer calculates the composition and amount of the required materials according to the data packet, and simultaneously allocates process parameters to the material supply device, spraying device, manipulator and drying device;

[0010] S3: According to the process parameters, the material supply device mixes the materials of different components; the spraying device adjusts the spraying frequency, speed and pressure parameters; the manipulator grabs the sample and places the sample at the position corresponding to the nozzle of the spraying device; the drying device starts heating;

[0011] S4: Control the mixed material to be input into the spraying device, spray the surface of the sample, and the manipulator controls the rotation of the sample according to the process parameters;

[0012] S5: placing the sprayed sample in the drying device for drying.

[0013] In some embodiments of the present application, in step S3, the material supply device mixes materials of different components, including: preparing materials of multiple different components in multiple material bins of the material supply device, controlling the opening of a first valve corresponding to the material bin, and controlling the closing of the first valve based on the weight data fed back by the weight sensor in combination with the process parameters.

[0014] In some embodiments of the present application, in step S3, the material supply device mixes the materials of different components and further includes: controlling to open the first valve corresponding to the material bin so that the materials of different components enter the heating pipeline of the material supply device respectively, and starting the first heating component of the material supply device to heat the materials in the heating pipeline.

[0015] In some embodiments of the present application, in step S3, the material supply device mixes the materials of different components and further includes: while controlling the opening of the first valve corresponding to the material bin, controlling the opening of the second heating component of the stirring bin in the material supply device to heat the stirring bin; when the material is heated to a preset temperature, controlling the opening of the second valve of the heating pipeline to allow the heated material to enter the stirring bin.

[0016] In some embodiments of the present application, in step S3, the material supply device mixes the materials of different components and further includes: when the second valve of the heating pipeline is opened, controlling the stirring component in the material supply device to open; stirring the material in the stirring bin for a preset time, and then controlling the opening of the third valve at the bottom of the stirring bin to control the material to enter the spraying device.

[0017] In some embodiments of the present application, in step S3, before the spraying device adjusts the spraying frequency, speed and pressure parameters, the inner tank of the spraying device is controlled to be preheated; while the third valve at the bottom of the stirring bin is controlled to be opened, the spraying device is controlled to adjust the spraying frequency, speed and pressure parameters.

[0018] In some embodiments of the present application, in step S5, placing the sprayed sample in a drying device for drying includes: adjusting the height of the manipulator relative to the drying device to increase or decrease the heating range of the drying device.

[0019] The second aspect of the present application provides a spray forming system, including: a three-dimensional scanning device, a control computer, a material supply device, a spray device, a manipulator and a drying device; the three-dimensional scanning device is used to scan a sample, the three-dimensional scanning device is communicatively connected to the control computer, and the control computer receives the shape data of the sample scanned by the three-dimensional scanning device; the control computer is communicatively connected to the material supply device, the spray device, the manipulator and the drying device respectively, and the control computer can allocate spraying process parameters to the material supply device, the spray device, the manipulator and the drying device; the material supply device is connected to the spray device, and the material supply device can convey material to the spray device; the manipulator is arranged opposite to the spray device.

[0020] In some embodiments of the present application, the material supply device includes: a plurality of material bins, the plurality of material bins are isolated from each other, and a first valve and a weight sensor are provided on the bottom surface of each material bin; a plurality of heating pipelines, the heating pipelines are connected to the material bins, and the first valve is used to control the on-off between the heating pipelines and the material bins; a first heating component, a first heating component is connected to the periphery of the heating pipeline, and the first heating component is used to heat the heating pipeline; a stirring bin, the stirring bin is connected to the material bin through a heating pipeline, a second valve is provided between the heating pipeline and the stirring bin, the second valve is used to control the on-off between the heating pipeline and the stirring bin, a discharge port and a third valve are provided at the bottom of the stirring bin, the discharge port is connected to the spraying device, and the third valve is used to control the on-off between the discharge port and the spraying device; a second heating component, the second heating component is connected to the stirring bin for heating the stirring bin; a stirring component, the stirring component is arranged in the stirring bin for stirring the material.

[0021] In some embodiments of the present application, the drying device includes a drying chamber, and the manipulator is arranged above the drying chamber; a support plate is connected to the bottom of the manipulator, and the support plate is connected to the drying device through a lifting device. The support plate can be moved closer to or away from the drying chamber through the lifting device to reduce or increase the heating range of the drying device.

[0022] Compared with the prior art, the spraying process provided in the first aspect of the present application obtains the precise shape data of the sample through three-dimensional scanning. Combined with the use temperature and sealing performance requirements, the control computer can accurately calculate the material composition and dosage, and assign reasonable process parameters to each device. The coordinated work of multiple devices such as material supply, spraying, manipulator operation and drying is achieved, and each link is closely coordinated, and parameter adjustment and preparation work are carried out at the same time, reducing manual intervention and waiting time. This solves the problem of reduced spraying efficiency and spraying quality due to low automation in the existing high-temperature resistant sealing film spraying process.

[0023] The spray molding system provided in the second aspect of the present application obtains precise shape data of the sample through a three-dimensional scanning device. The control computer can accurately assign process parameters to each device based on these data and preset parameters, thereby realizing full-process automated control from scanning, parameter setting to spraying and drying. It has a high degree of automation and reduces manual intervention and operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0025] Figure 1 The flow chart of the spraying process of the embodiment of the present application is schematically shown;

[0026] Figure 2 The structural diagram of the spray forming system of the embodiment of the present application is schematically shown;

[0027] Figure 3 The structural diagram of the material supply device in the spray forming system of the embodiment of the present application is schematically shown;

[0028] Figure 4 The cross-sectional structure diagram of the material supply device in the spray forming system of the embodiment of the present application is schematically shown;

[0029] Figure 5 The schematic diagram of the structure of the manipulator and the drying device in the spray forming system of the embodiment of the present application is schematically shown;

[0030] Figure 6 The schematic diagram of the structure of the manipulator and the drying device in the spray forming system of the embodiment of the present application from another perspective is shown schematically.

[0031] Description of Figure Numbers:

[0032] 1. 3D scanning equipment; 2. Control computer; 3. Material supply device; 301. Material bin; 302. First valve; 303. Weight sensor; 304. Heating pipeline; 305. First heating component; 306. Stirring bin; 307. Second valve; 308. Second heating component; 309. Stirring component; 310. Third valve; 4. Spraying device; 5. Robot; 6. Drying device; 601. Drying chamber; 602. Third heating component; 7. Support plate; 8. Lifting device. DETAILED DESCRIPTION

[0033] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0034] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which this application belongs.

[0035] Existing small-scale spraying equipment is not intelligent enough, relies on manual operation, requires high skills of operators and has unstable spraying quality; large-scale spraying equipment is fully functional but expensive. At the same time, the existing large and small equipment has a low degree of integration, each process link is independent, and the process connection is not smooth, which affects work efficiency and product quality. Based on these problems, this application aims to develop a more intelligent, efficient and cost-effective spraying solution.

[0036] Example 1

[0037] The present application embodiment provides a spraying process, such as Figure 1 As shown, including:

[0038] S1: Perform three-dimensional scanning on the sample to obtain the appearance data of the sample, and at the same time obtain the use temperature data and sealing performance data that the sample needs to achieve, and input the data into the control computer 2 to form a data package;

[0039] S2: The control computer 2 calculates the composition and amount of the required materials according to the data packet, and simultaneously allocates process parameters to the material supply device 3, the spraying device 4, the manipulator 5 and the drying device 6;

[0040] S3: According to the process parameters, the material supply device 3 mixes materials of different components; the spraying device 4 adjusts the spraying frequency, speed and pressure parameters; the manipulator 5 grabs the sample and places the sample at the position corresponding to the nozzle of the spraying device 4; the drying device 6 starts heating;

[0041] S4: Control the mixed material to be input into the spraying device 4, spray the surface of the sample, and the manipulator 5 controls the rotation of the sample according to the process parameters;

[0042] S5: placing the sprayed sample in a drying device 6 for drying.

[0043] Step S1, in actual operation, a high-precision three-dimensional scanning device can be used to perform an all-round scan of the sample to be sprayed. Taking a metal seal used in a high-temperature environment as an example, the scanning equipment accurately captures its complex shape contour, including the shape, size and surface subtle features of each surface. At the same time, through technical data query, product design requirements and other means, the use temperature data (such as the working environment temperature is 800°C) and sealing performance data (such as requiring the gas leakage rate to be lower than a certain standard) that the sample needs to achieve are obtained. Then these shape data, use temperature data and sealing performance data are input into the control computer 2 to form a data packet.

[0044] Step S2, the control computer 2 has a built-in special algorithm and database. Based on the received data packet, the control computer 2 starts to calculate the composition and amount of the required materials. For the above-mentioned metal seal samples, according to their use temperature and sealing performance requirements, combined with the performance parameters of different materials in the database, it is determined that a material mixed with a specific proportion of high-temperature resistant polymers and reinforcing fibers is required. At the same time, the control computer 2 simultaneously allocates process parameters to the material supply device 3, the spraying device 4, the manipulator 5 and the drying device 6 according to the material characteristics, sample shape and process requirements. For example, the conveying ratio and speed of materials with different components are set for the material supply device 3; the appropriate spraying frequency (such as 5 times per second), speed (such as 100 mm per minute) and pressure parameters (such as 0.5MPa) are determined for the spraying device 4; the movement path and placement position of the sample are planned for the manipulator 5; the heating temperature (such as 120°C) and time (such as 30 minutes) are set for the drying device 6, etc.

[0045] Step S3, according to the process parameters assigned by the control computer 2, the material supply device 3 starts working, and fully mixes the materials of different components in the mixing bin 306 according to the set ratio. The spraying device 4 adjusts its own spraying frequency, speed and pressure according to the set parameters to ensure that the spraying operation can be carried out in the best state. The manipulator 5 accurately grabs the sample according to the preset action path, and places it steadily at the appropriate position of the nozzle of the corresponding spraying device 4 to ensure the accuracy of the spraying. At the same time, the drying device 6 starts heating and preheats to the set temperature to prepare for the subsequent drying process.

[0046] Step S4, the mixed material is input into the spraying device 4 under control, and the spraying device 4 starts to spray the surface of the sample. During the spraying process, the manipulator 5 controls the rotation of the sample according to the process parameters. For samples with complex shapes, by accurately controlling the rotation angle and speed of the sample, it is ensured that the spraying device 4 can evenly spray the material to each surface of the sample to avoid the occurrence of spraying dead angles or uneven thickness.

[0047] Step S5, when the sample surface is sprayed, the manipulator 5 places it stably in the drying device 6. The drying device 6 dries the sample according to the preset temperature and time parameters. During the drying process, the solvent in the material gradually evaporates, and the coating is solidified and formed, so that the sample obtains the required sealing performance and high temperature resistance.

[0048] The spraying process provided in the embodiment of the present application obtains the precise shape data of the sample through three-dimensional scanning. Combined with the use temperature and sealing performance requirements, the control computer 2 can accurately calculate the material composition and dosage, and allocate reasonable process parameters to each device. During the spraying process, the manipulator 5 accurately controls the rotation of the sample to ensure that the material is evenly sprayed onto all surfaces of the sample, effectively avoiding problems such as uneven spraying thickness and uneven surface, and significantly improving the spraying accuracy and quality. The spraying process provided in the embodiment of the present application realizes the coordinated work of multiple small equipment such as material supply, spraying, manipulator operation and drying. Each link is closely coordinated, and parameter adjustment and preparation work are carried out at the same time, reducing manual intervention and waiting time. Thereby solving the problem of reduced spraying efficiency and spraying quality due to low automation in the existing high temperature resistant sealing film spraying process.

[0049] In some embodiments, before the sample is formally scanned in three dimensions, a low-power laser may be used to pre-scan the sample to obtain the general outline and surface feature information of the sample. This information is then input into the control computer 2, which uses advanced simulation algorithms to virtually simulate the entire spraying process, including material flow, spraying uniformity, curing effect, etc. Based on the simulation results, the process parameters are preliminarily optimized and adjusted, such as adjusting the pressure of the sprayer, the moving speed of the nozzle, etc., to improve the success rate and quality of the formal spraying.

[0050] In some embodiments, in step S3, the material supply device 3 mixes materials of different components, including: preparing materials of multiple different components in multiple material bins 301 of the material supply device 3, controlling the opening of the first valve 302 of the corresponding material bin 301, and controlling the closing of the first valve 302 through the weight data fed back by the weight sensor 303 combined with the process parameters.

[0051] In the material supply device 3, there are multiple material bins 301, each storing materials of different components. For example, one material bin 301 stores high temperature resistant polymer resin, which is the main film-forming material of the sealing film; another material bin 301 stores ceramic fiber powder with enhanced performance, which is used to improve the strength and high temperature resistance of the sealing film; and another material bin 301 stores special additives that can improve the flexibility and adhesion of the sealing film.

[0052] According to the process parameters assigned by the control computer 2, the mixed material is prepared. First, the first valve 302 corresponding to each material bin 301 is controlled to open so that the material starts to flow out. A weight sensor 303 is installed at the discharge port of each material bin 301. These sensors monitor the weight of the outflowing material in real time and feed back the weight data to the control computer 2. Take the high temperature resistant polymer resin as an example, assuming that the process parameters require the addition of 5 kg of the resin. When the first valve 302 is opened, the resin starts to flow out, and the weight sensor 303 feeds back the weight data in real time. As the weight of the resin increases, the control computer 2 continuously receives these data and compares them with the preset 5 kg. When the weight data fed back by the weight sensor 303 reaches 5 kg, the control computer 2 controls the closing of the first valve 302 of the material bin 301 according to this feedback and the process parameters to stop the outflow of the resin. In the same way, for ceramic fiber powder and special additives, the corresponding first valve 302 is controlled to be closed by the weight data fed back by the weight sensor 303 according to the respective process parameter requirements. For example, the process parameters require the addition of 2 kg of ceramic fiber powder and 0.5 kg of special additives. When the weight sensors 303 respectively feedback that the corresponding weights are reached, the corresponding first valves 302 are closed, thereby completing the precise measurement of each component material.

[0053] By real-time feedback of weight data by weight sensor 303, and combining the closing of valve with process parameters, the addition amount of each material can be accurately controlled, so as to realize accurate control of material proportion. The spraying process provided by the embodiment of the present application provides a clear and quantifiable control method for material mixing, so that the whole spraying process has strong repeatability. Whether in different batches of production or in different production sites, as long as the same process parameters and operating procedures are followed, mixed materials and spraying effects of the same quality can be obtained, which is conducive to improving production efficiency and consistency of product quality. And the whole material mixing process is fed back by weight sensor 303 and the switch of control computer 2 automatically controls the valve, realizing a high degree of automation. This not only reduces the workload and error of manual operation, but also improves the safety and reliability of the production process. The operator only needs to set the process parameters, and the equipment can automatically complete the accurate measurement and mixing of materials, reduces the requirements for the skill level of the operator, and improves production efficiency.

[0054] In some embodiments, in step S3, the material supply device 3 mixes materials of different components and further includes: controlling to open the first valve 302 of the corresponding material bin 301 so that the materials of different components enter the heating pipeline 304 of the material supply device 3 respectively, and starting the first heating component 305 of the material supply device 3 to heat the materials in the heating pipeline 304.

[0055] According to the process parameters assigned by the control computer 2, the first valves 302 corresponding to the material bins 301 are controlled to open. After these valves are opened, each material flows out from its own material bin 301 and enters the heating pipeline 304 of the corresponding material supply device 3. When the materials of different components enter the heating pipeline 304, the first heating component 305 of the material supply device 3 is started. The first heating component 305 can be a heating wire or other heating device surrounding the outside of the heating pipeline 304.

[0056] Assume that the first material needs to be heated to 80°C to achieve optimal fluidity and mixing effect with other components, and the second material can be better dispersed and function at about 60°C. The first heating component 305 heats the material in the heating pipeline 304 according to the preset temperature parameters. During the heating process, the temperature sensor monitors the temperature of the material in the heating pipeline 304 in real time and feeds the data back to the control computer 2.

[0057] When the temperature of the first material reaches 80°C and the temperature of the second material reaches 60°C, the control computer 2 maintains the current state of the heating component based on the feedback temperature data to ensure that the material is kept at a suitable temperature for a period of time to ensure uniform and sufficient heating.

[0058] By heating materials of different components separately, each material can reach the best physical state before entering the mixing process. Compared with direct mixing without heating, the heated materials can be more evenly distributed during the mixing process, reducing the performance defects of the sealing film caused by material agglomeration or insufficient mixing, such as insufficient local strength and inconsistent sealing performance. And by heating various materials at the same time, manual intervention and waiting time are reduced, and the efficiency of the entire material mixing process is improved.

[0059] In some embodiments, in step S3, the material supply device 3 mixes materials of different components and further includes: while controlling the opening of the first valve 302 of the corresponding material bin 301, controlling the opening of the second heating component 308 of the stirring bin 306 in the material supply device 3 to heat the stirring bin 306; when the material is heated to a preset temperature, controlling the opening of the second valve 307 of the heating pipeline 304 to allow the heated material to enter the stirring bin 306.

[0060] According to the instruction of the control computer 2, while controlling the opening of the first valve 302 corresponding to each material bin 301, the second heating component 308 of the stirring bin 306 in the material supply device 3 is controlled to be opened. The second heating component 308 starts to preheat the stirring bin 306. Assuming that the preheating temperature of the stirring bin 306 is preset to 50°C, it is ensured that the subsequent materials entering are mixed at a suitable ambient temperature. The materials of different components flow out from their respective material bins 301 and enter the heating pipeline 304 through the connecting pipe.

[0061] The material is heated by the first heating component 305 in the heating pipeline 304. Each material has a different preset heating temperature according to its characteristics. The temperature sensor in the heating pipeline 304 monitors the material temperature in real time and feeds the data back to the control computer 2. When each material is heated to its respective preset temperature, the control computer 2 controls the opening of the second valve 307 of the heating pipeline 304 according to the data fed back by the temperature sensor. The heated material flows from the heating pipeline 304 into the preheated mixing chamber 306.

[0062] By heating the mixing chamber 306 in advance, a suitable temperature environment is created for the incoming materials, which helps the materials to blend better during the mixing process. Reasonable arrangement of the time for material heating and preheating the mixing chamber 306 reduces waiting time and improves the efficiency of the entire material mixing process. Different components of materials quickly enter the mixing chamber 306 for mixing at their respective suitable temperatures, shortening the production cycle, helping to improve overall production efficiency and meet the needs of large-scale production. In addition, the temperature and valve control of each link in the spraying process are accurately managed by the control computer 2. The operator only needs to set the process parameters on the control computer 2, and the equipment can automatically run according to the preset program. This greatly enhances the controllability of the process, reduces the impact of human factors on the mixing process, and improves the stability and reliability of the production process.

[0063] In some embodiments, in step S3, the material supply device 3 mixes materials of different components and further includes: when the second valve 307 of the heating pipeline 304 is opened, the stirring component 309 in the material supply device 3 is controlled to open; the material in the stirring bin 306 is stirred for a preset time, and then the third valve 310 at the bottom of the stirring bin 306 is controlled to open to control the material to enter the spraying device 4.

[0064] When the material reaches the preset temperature in the heating pipeline 304, the second valve 307 of the heating pipeline 304 is controlled to open, so that the heated material enters the stirring chamber 306. At the same time, the stirring component 309 in the material supply device 3 is controlled to open. The stirring component 309 starts to stir the material in the stirring chamber 306 at a preset speed. For example, the speed of the stirring component 309 is set to 300 revolutions per minute, which can ensure that the materials of different components are fully mixed during the stirring process. The stirring component 309 stirs according to the preset time, assuming that the preset time is 10 minutes. During these 10 minutes, the high-temperature resistant organic polymer, ceramic micropowder and special additives continue to roll and merge in the stirring chamber 306, and gradually form a uniform mixture. After 10 minutes of stirring, the third valve 310 at the bottom of the stirring chamber 306 is controlled to open. At this time, the uniformly mixed material flows out from the bottom of the stirring chamber 306 under the action of gravity or pressure and enters the spraying device 4. The spraying device 4 will spray these materials evenly on the surface of the high-temperature parts of the aircraft engine according to the preset process parameters.

[0065] By starting the stirring assembly 309 when the material enters the stirring chamber 306 and setting a suitable stirring time, it is possible to ensure that the materials of different components are fully mixed in the stirring chamber 306. The operation sequence and time of each link are accurately controlled to make the mixing and conveying process of the materials smoother and more efficient. When the material reaches the preset temperature, it enters the stirring chamber 306 in time and starts stirring. After the stirring is completed, it can be transported to the spraying device 4 in time, reducing unnecessary waiting time and improving the production efficiency of the entire spraying process.

[0066] In some embodiments, in step S3, before the spraying device 4 adjusts the spraying frequency, speed and pressure parameters, the inner tank of the spraying device 4 is controlled to be preheated; while the third valve 310 at the bottom of the stirring chamber 306 is controlled to be opened, the spraying device 4 is controlled to adjust the spraying frequency, speed and pressure parameters.

[0067] Before the spraying device 4 adjusts the spraying frequency, speed and pressure parameters, the control starts the inner tank preheating program of the spraying device 4. For example, the inner tank of the spraying device 4 is preheated to 60°C. This temperature is determined according to the characteristics of the sealing film material used, and can ensure that the material reaches the best spraying state after entering the spraying device 4. During the preheating process, the temperature sensor of the inner tank monitors the temperature in real time and feeds back the data to the control computer 2. When the temperature reaches 60°C, the preheating is completed.

[0068] While controlling to open the third valve 310 at the bottom of the mixing bin 306, the control computer 2 sends instructions to the spraying device 4 to adjust the spraying frequency, speed and pressure parameters. For example, according to the shape, size and sealing requirements of the automobile engine cylinder body, the spraying frequency is set to 8 times per second, the spraying speed is set to 120 mm per minute, and the spraying pressure is set to 0.6MPa. The setting of these parameters can ensure that the sealing film is evenly sprayed on the surface of the cylinder body, and the thickness meets the requirements. After adjusting the parameters, the spraying device 4 starts to work, and the mixed material is evenly sprayed on the surface of the automobile engine cylinder body to complete the spraying operation of the high temperature resistant sealing film.

[0069] By preheating the inner tank of the spraying device 4, the incoming material can be sprayed under a suitable temperature environment, which helps to improve the fluidity and atomization effect of the material. This can ensure that the sprayed sealing film is more uniform and smooth, reduce the generation of defects such as flow marks and bubbles, thereby improving the quality and sealing performance of the sealing film. The inner tank is preheated while the material is mixed, and the spraying parameters are adjusted synchronously during the material transportation. Each link is closely connected, which reduces the idle time of the equipment and improves the overall production efficiency.

[0070] In some embodiments, in step S5 , placing the sprayed sample in the drying device 6 for drying includes: adjusting the height of the manipulator 5 relative to the drying device 6 to increase or decrease the heating range of the drying device 6 .

[0071] Through the previous steps, the high temperature resistant sealing film spraying operation on the metal parts has been completed. At this time, the sprayed sample is grabbed by the manipulator 5. The manipulator 5 moves the sprayed sample to the drying device 6. The drying device 6 has a certain heating range. When the heating range is reduced, the heat can be more concentrated around the sample, so that the sample can be dried more efficiently, improving the drying efficiency and effect. The manipulator 5 will carry the sample down a certain height, such as 10 cm. In this way, the heating range of the drying device 6 can effectively cover the entire component, ensuring that all parts of the sealing film can be fully heated.

[0072] The drying device 6 starts the heating program. The sealing film on the sample is dried according to the preset temperature and time parameters. For example, the temperature is set to 150° C. and the drying time is 30 minutes. During the drying process, the solvent in the sealing film gradually evaporates, and the molecular structure undergoes cross-linking and solidification, thereby forming a sealing film with good high temperature resistance and sealing performance.

[0073] By adjusting the height of the manipulator 5 relative to the drying device 6 to control the heating range, the heating coverage area of ​​the drying device 6 can be flexibly adjusted according to the actual size and shape of the sample. This ensures that all parts of the sealing film are evenly heated during the drying process, avoiding local overheating or insufficient heating, thereby improving the quality and performance stability of the sealing film.

[0074] Example 2

[0075] The present application embodiment provides a spray forming system, such as Figure 2 As shown, it includes: a three-dimensional scanning device 1, a control computer 2, a material supply device 3, a spraying device 4, a manipulator 5 and a drying device 6; the three-dimensional scanning device 1 is used to scan the sample, the three-dimensional scanning device 1 is communicated with the control computer 2, and the control computer 2 receives the appearance data of the sample scanned by the three-dimensional scanning device 1; the control computer 2 is communicated with the material supply device 3, the spraying device 4, the manipulator 5 and the drying device 6 respectively, and the control computer 2 can distribute the spraying process parameters to the material supply device 3, the spraying device 4, the manipulator 5 and the drying device 6; the material supply device 3 is connected to the spraying device 4, and the material supply device 3 can convey materials to the spraying device 4; the manipulator 5 and the spraying device 4 are arranged opposite to each other.

[0076] Place the sample to be sprayed at a suitable location and start the three-dimensional scanning device 1. The three-dimensional scanning device 1 can use laser, optical and other scanning technologies to perform an all-round scan on the surface of the sample to obtain accurate shape data of the sample, which includes information such as the shape, size, and surface contour of the sample. After the scanning is completed, the three-dimensional scanning device 1 transmits the scanned shape data to the control computer 2 through wired or wireless communication.

[0077] After the control computer 2 receives the shape data of the sample, the operator sets the corresponding spraying process parameters on the control computer 2 according to the material of the sample, the required spraying effect and other factors, such as the spraying speed, thickness, number of times, material flow rate, etc. The control computer 2 allocates these process parameters to the material supply device 3, the spraying device 4, the manipulator 5 and the drying device 6 respectively according to the set parameters and the shape data of the sample through internal algorithm calculation and analysis.

[0078] The material supply device 3 transports the stored spraying material to the spraying device 4 through a pipeline according to the parameters assigned by the control computer 2. The sample is located between the spraying device 4 and the manipulator 5. The manipulator 5 drives the sample to rotate according to the pre-planned path and action according to the instructions of the control computer 2, and the spraying device 4 performs the spraying operation. During the spraying process, the spraying device 4 accurately controls the spraying amount and the spraying angle of the material according to the received parameters to ensure that the sample surface is evenly covered with the material. The manipulator 5 and the spraying device 4 can adopt equipment in the prior art, such as high-pressure airless spraying equipment and multi-joint industrial manipulator 5.

[0079] After the spraying is completed, the robot 5 moves the sample to the drying device 6. The drying device 6 dries the sample according to the drying parameters assigned by the control computer 2, such as temperature, time, drying method, etc. During the drying process, the moisture or solvent in the sprayed material on the surface of the sample is removed, the material is solidified, and a stable coating is formed, completing the entire spraying molding process.

[0080] The spray molding system provided in the embodiment of the present application obtains the precise shape data of the sample through the three-dimensional scanning device 1, and the control computer 2 can accurately assign process parameters to each device according to these data and preset parameters, realizing the full process automation control from scanning, parameter setting to spraying and drying, with a high degree of automation, reducing manual intervention and operation time. The manipulator 5 can spray according to the predetermined path and action, ensuring the accuracy of the spraying position and angle, improving the precision and consistency of the spraying, avoiding the errors and inconsistencies that may occur in manual operation, thereby improving the quality and stability of the product.

[0081] In some embodiments, Figure 3 and Figure 4As shown, the material supply device 3 includes: a plurality of material bins 301, the plurality of material bins 301 are isolated from each other, and the bottom surface of each material bin 301 is provided with a first valve 302 and a weight sensor 303; a plurality of heating pipelines 304, the heating pipeline 304 is connected to the material bin 301, and the first valve 302 is used to control the on-off between the heating pipeline 304 and the material bin 301; a first heating component 305, the first heating component 305 is connected to the periphery of the heating pipeline 304, and the first heating component 305 is used to heat the heating pipeline 304; a stirring bin 306, the stirring bin 306 is connected to the material bin 301 The heating pipeline 304 is connected, and a second valve 307 is provided between the heating pipeline 304 and the stirring chamber 306. The second valve 307 is used to control the on-off between the heating pipeline 304 and the stirring chamber 306. A discharge port and a third valve 310 are provided at the bottom of the stirring chamber 306. The discharge port is connected to the spraying device 4, and the third valve 310 is used to control the on-off between the discharge port and the spraying device 4; a second heating component 308, the second heating component 308 is connected to the stirring chamber 306, and is used to heat the stirring chamber 306; a stirring component 309, the stirring component 309 is arranged in the stirring chamber 306, and is used to stir the material.

[0082] In an actual production scenario, the material supply device 3 may be a columnar structure, and a plurality of material bins 301 are distributed in a circumferential manner on the top of the material supply device 3, and the plurality of material bins 301 are used to store spray materials of different types or colors. These material bins 301 are isolated from each other to avoid mixing of different materials. A weight sensor 303 is installed on the bottom surface of each material bin 301 to monitor the weight of the material in the material bin 301 in real time, so as to control the weight of the material discharged. At the same time, when the weight sensor 303 detects that the weight of the material in the material bin 301 is lower than the set value, the system can promptly remind the staff to replenish the material. A discharge port is also provided on the bottom surface of each material bin 301, and a first valve 302 is installed on the discharge port to control whether the material enters the heating pipeline 304 connected thereto.

[0083] The heating pipeline 304 is arranged below the material bin 301, vertically or obliquely. When a certain material is needed, the corresponding first valve 302 is opened, and the material enters the heating pipeline 304 under the action of gravity. The first heating component 305 connected to the periphery of the heating pipeline 304 starts to work. The first heating component 305 can be a heating wire or other heating device surrounding the outside of the heating pipeline 304. The heating pipeline 304 is heated to keep the material at a suitable temperature in the heating pipeline 304 to avoid the increase of material viscosity due to too low temperature affecting the spraying effect. For example, for some hot-melt spraying materials, the appropriate temperature can ensure that they flow smoothly in the pipeline. The stirring bin 306 is located in the middle of the material supply device 3 and is arranged below the material bin 301. The heated material is transported to the stirring bin 306 through the heating pipeline 304. The second valve 307 arranged between the heating pipeline 304 and the stirring bin 306 can control whether the material enters the stirring bin 306.

[0084] When multiple materials need to be mixed for use, different materials enter the mixing chamber 306 in sequence through the heating pipeline 304 according to the set order and proportion. In the mixing chamber 306, the mixing component 309 starts to work, for example, by rotating to fully mix the materials entering the mixing chamber 306, so that different materials are evenly mixed to obtain ideal spray material performance.

[0085] During or before the stirring process, the second heating component 308 heats the stirring chamber 306 to maintain a stable temperature of the material in the stirring chamber 306. The second heating component 308 can be a heating plate disposed at the bottom of the stirring chamber 306. After the stirring is completed and the material reaches a suitable temperature and mixed state, the third valve 310 is opened, and the material flows out from the discharge port at the bottom of the stirring chamber 306 and is transported to the spraying device 4 through a pipeline connected to the discharge port for the spraying device 4 to perform a spraying operation.

[0086] The weight sensor 303 monitors the weight of the material in the material bin 301 in real time, so that accurate management of the material can be achieved. The setting of the heating pipeline 304 and the first heating component 305 ensures that the temperature of the material is appropriate during the transportation process, reduces the viscosity of the material, improves the fluidity of the material, avoids the material from being blocked in the pipeline, and ensures that the material can be smoothly transported to the stirring bin 306. The heating of the stirring bin 306 by the second heating component 308 and the stirring of the material by the stirring component 309 further optimize the performance of the material. Stirring fully mixes different materials and ensures the uniformity of the material composition. Heating maintains the good fluidity and stability of the material, thereby improving the quality of the final spray product. The setting of each valve, such as the first valve 302, the second valve 307 and the third valve 310, can accurately control the flow path and time of the material, and realize flexible control of the material transportation and mixing process. The automated design of the entire material supply device 3 reduces manual intervention and improves the efficiency and accuracy of material supply. From material storage, heating, transportation to mixing and final discharging, each link cooperates closely, which can quickly provide suitable materials to the spraying device 4, shorten the production preparation time and improve the overall production efficiency.

[0087] In some embodiments, Figure 5 and Figure 6 As shown, the drying device 6 includes a drying chamber 601, and the manipulator 5 is arranged above the drying chamber 601; a support plate 7 is connected to the bottom of the manipulator 5, and the support plate 7 is connected to the drying device 6 through a lifting device 8. The support plate 7 can be moved closer to or away from the drying chamber 601 through the lifting device 8 to reduce or increase the heating range of the drying device 6.

[0088] The drying device 6 can be a cubic structure, and the drying device 6 is provided with a groove, and the side wall of each groove is embedded with a third heating component 602, and multiple third heating components 602 are enclosed to form a drying chamber 601. The manipulator 5 is isolated from the drying chamber 601 by a support plate 7, and a third heating component 602 is also provided on the surface of the support plate 7 facing the drying chamber 601. The third heating component 602 can be a heating plate or a heating wire structure. The support plate 7 is connected to the side wall of the drying device 6 by a lifting device 8, and the lifting device 8 is a pair, which is relatively arranged on both sides of the drying chamber 601. The lifting device 8 can be a lifting slide rail structure, and the lifting of the support plate 7 is controlled by the control computer 2.

[0089] When the manipulator 5 completes the spraying operation on the sample, according to the instruction of the control computer 2, the manipulator 5 moves the sprayed sample into the drying chamber 601. At this time, the lifting device 8 starts to work, driving the support plate 7 to drive the manipulator 5 and the clamped sample to slowly descend and approach the drying chamber 601. As the support plate 7 descends to a suitable position, the sample enters the effective heating area of ​​the drying chamber 601. At this time, the drying device 6 begins to dry the sample. Since the support plate 7 is close to the drying chamber 601, the heating range of the drying chamber 601 is relatively reduced, and the heat is more concentrated around the sample, which can dry the sample more efficiently and improve the drying efficiency and effect. During the drying process, the drying device 6 is precisely controlled according to pre-set parameters such as temperature and time to ensure that the coating on the surface of the sample can be evenly cured.

[0090] When the sample is dried, the lifting device 8 is started again, driving the support plate 7 to drive the manipulator 5 and the sample to rise away from the drying chamber 601. The drying device 6 can turn off the heating function as needed, or maintain a certain preheating temperature, waiting for the next drying task. The manipulator 5 can then place the dried sample at a designated position and prepare for the next spraying operation.

[0091] The distance between the support plate 7 and the drying chamber 601 is adjusted by the lifting device 8, thereby changing the heating range of the drying device 6. When the support plate 7 is close to the drying chamber 601, the heating range is reduced, and the heat is concentrated around the sample, which can transfer heat to the sample more quickly, accelerate the drying and curing process of the coating, greatly improve the drying efficiency, and shorten the production cycle. And because the drying chamber 601 is a semi-enclosed structure, before spraying, the drying device 6 starts to preheat, and the heat it emits gradually increases the temperature of the surrounding environment, so that the spraying area forms a relatively warm microenvironment. In this way, the spraying material is always under a more suitable temperature condition, the viscosity is kept within a reasonable range, the fluidity is good, and it can be smoothly sprayed from the spray gun and achieve an ideal atomization effect.

[0092] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A spraying process, characterized in that: include: S1: Perform three-dimensional scanning on the sample to obtain the appearance data of the sample, and at the same time obtain the use temperature data and sealing performance data that the sample needs to achieve, and input the data into the control computer to form a data package; S2: The control computer calculates the composition and amount of the required materials according to the data packet, and simultaneously allocates process parameters to the material supply device, spraying device, manipulator and drying device; S3: According to the process parameters, the material supply device mixes the materials of different components; the spraying device adjusts the spraying frequency, speed and pressure parameters; the manipulator grabs the sample and places the sample at the position corresponding to the nozzle of the spraying device; the drying device starts heating; S4: Control the mixed material to be input into the spraying device, spray the surface of the sample, and the manipulator controls the rotation of the sample according to the process parameters; S5: placing the sprayed sample in the drying device for drying.

2. The spraying process according to claim 1, characterized in that: In step S3, the material supply device mixes materials of different components, including: Materials of various compositions are prepared in a plurality of material bins of the material supply device, a first valve corresponding to the material bin is controlled to be opened, and the first valve is controlled to be closed based on the weight data fed back by the weight sensor in combination with the process parameters.

3. The spraying process according to claim 2, characterized in that: In step S3, the material supply device mixing the materials of different components further comprises: The first valve corresponding to the material bin is controlled to open, so that materials of different components enter the heating pipeline of the material supply device respectively, and the first heating component of the material supply device is started to heat the materials in the heating pipeline.

4. The spraying process according to claim 3, characterized in that: In step S3, the material supply device mixing the materials of different components further comprises: While controlling to open the first valve corresponding to the material bin, controlling to open the second heating component of the stirring bin in the material supply device to heat the stirring bin; When the material is heated to a preset temperature, the second valve of the heating pipeline is controlled to open, so that the heated material enters the mixing bin.

5. The spraying process according to claim 4, characterized in that: In step S3, the material supply device mixing the materials of different components further comprises: When the second valve of the heating pipeline is opened, the stirring component in the material supply device is controlled to open; The material in the mixing bin is stirred for a preset time, and then a third valve at the bottom of the mixing bin is controlled to open, so that the material is controlled to enter the spraying device.

6. The spraying process according to claim 5, characterized in that: In step S3, Before the spraying device adjusts the spraying frequency, speed and pressure parameters, controlling the inner tank of the spraying device to preheat; While controlling the third valve at the bottom of the mixing chamber to open, the spraying device is controlled to adjust the spraying frequency, speed and pressure parameters.

7. The spraying process according to claim 1, characterized in that: In step S5, placing the sprayed sample in a drying device for drying includes: The height of the manipulator relative to the drying device is adjusted to increase or decrease the heating range of the drying device.

8. A spray molding system, characterized in that: include: 3D scanning equipment, control computer, material supply device, spraying device, manipulator and drying device; The three-dimensional scanning device is used to scan the sample, the three-dimensional scanning device is in communication connection with the control computer, and the control computer receives the shape data of the sample scanned by the three-dimensional scanning device; The control computer is respectively connected to the material supply device, the spraying device, the manipulator and the drying device for communication, and the control computer can distribute spraying process parameters to the material supply device, the spraying device, the manipulator and the drying device; The material supply device is connected to the spraying device, and the material supply device can deliver material to the spraying device; The manipulator is arranged opposite to the spraying device.

9. The spray forming system according to claim 8, characterized in that: The material supply device comprises: A plurality of material bins, wherein the plurality of material bins are isolated from each other, and a first valve and a weight sensor are provided on the bottom surface of each material bin; A plurality of heating pipelines, wherein the heating pipelines are connected to the material bin, and the first valve is used to control the connection and disconnection between the heating pipelines and the material bin; A first heating component, the heating pipeline is connected to a first heating component on its periphery, and the first heating component is used to heat the heating pipeline; A stirring bin, wherein the stirring bin is connected to the material bin via a heating pipeline, a second valve is provided between the heating pipeline and the stirring bin, and the second valve is used to control the on-off between the heating pipeline and the stirring bin, a discharge port and a third valve are provided at the bottom of the stirring bin, the discharge port is connected to the spraying device, and the third valve is used to control the on-off between the discharge port and the spraying device; a second heating component, the second heating component is connected to the stirring chamber and is used to heat the stirring chamber; A stirring component is arranged in the stirring bin and is used for stirring the material.

10. The spray forming system according to claim 8, characterized in that: The drying device comprises a drying chamber, and the manipulator is arranged above the drying chamber; A support plate is connected to the bottom of the manipulator, and the support plate is connected to the drying device via a lifting device. The support plate can be moved closer to or farther away from the drying chamber via the lifting device, so as to reduce or increase the heating range of the drying device.

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