Automatic quantitative control system for wax injection equipment

Abstract

The utility model discloses an automatic quantitative control system for wax injection equipment. The device comprises a central control module and a wax material supply module, wherein the central control module is respectively connected with a wax injection chamber body, the wax material supply module and a vehicle type identification module through a bus; and the wax material supply module is connected with the wax injection chamber body. According to the utility model, the problems that the wax injection control flexibility is low and the flexible production of a workshop wax injection line is not realized in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive wax injection technology, and in particular to an automatic quantitative control system for wax injection equipment. Background Technology

[0002] In related technologies, wax injection into the body cavity is a crucial step in the production of automotive body-in-white for rust prevention. Traditional timed and quantitative wax injection control systems have several drawbacks. For example, existing systems lack flexibility, failing to adapt to production needs with timely, flexible, and easy nozzle configuration and precise wax volume adjustments, thus failing to meet the demands of modern wax injection operations for flexibility. Furthermore, existing systems typically cannot operate offline; problems such as control system network anomalies or interlocking errors are difficult to detect and resolve promptly, further impacting wax injection quality and production efficiency. Therefore, developing a flexible and adaptable quantitative wax injection control system has significant practical importance and market value.

[0003] In related technologies, the technical problems of low flexibility in wax injection control and the lack of flexible production in workshop wax injection lines have not yet been effectively solved. Utility Model Content

[0004] The purpose of this invention is to provide an automatic quantitative control system for wax injection equipment, in order to solve the problems of low flexibility in wax injection control and the lack of flexible production in workshop wax injection lines in related technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic quantitative control system for a wax injection device includes a central control module and a wax supply module. The central control module is connected to the wax injection chamber, the wax supply module, and the vehicle model recognition module via a bus. The wax supply module is connected to the wax injection chamber.

[0007] Further configuration: the wax injection chamber includes at least one station; the station includes at least one gun station; the gun station is equipped with a wax injection control module.

[0008] Further configuration: The gun station is equipped with a flow sensor.

[0009] Further configuration: The wax supply module includes a wax storage tank, a wax pump, and a filtration system; the wax storage tank is connected to at least one gun station.

[0010] Further configuration: The wax storage tank is equipped with a thermometer, a level gauge, and a stirring pump.

[0011] A further feature is provided: the outlet connection of the wax storage tank has a manual valve for discharging wax.

[0012] Further configuration: the outlet of the wax storage tank is connected to at least one wax delivery pipeline, and each wax delivery pipeline is connected in parallel; two wax pumps are installed on the wax delivery pipeline, and a manual valve is installed in front of each wax pump.

[0013] Further configuration: the outlet of the wax delivery pipeline is connected to a filtration system, which includes two filtration branches, each equipped with a filter, and each end of the filter is connected to a manual valve; each end of the filtration system is connected to a pressure sensor.

[0014] Further configuration: the filtration system is connected to the inlet of the wax storage tank via a loop pipe; at least one gun station branch is provided on the loop pipe, which is connected to the gun station; a thermometer, a manual valve, and a back pressure valve are provided on the loop pipe.

[0015] Further configuration: A branch pipeline is connected to both sides of the back pressure valve, and a manual valve and a bypass valve are installed on the branch pipeline.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] The central control module, acting as the core hub, is connected to the wax injection chamber, wax supply module, and vehicle model recognition module via a bus, enabling unified control over the entire wax supply and injection process. Based on information from the vehicle model recognition module, it precisely adjusts the wax supply module to adapt the wax quantity and injection process to different vehicle models, significantly improving the targeting and accuracy of the wax injection.

[0018] The wax storage tank is equipped with a thermometer, level gauge, and a stirring pump, enabling temperature monitoring and control to ensure safe wax storage and processing; precise level control facilitates material management and prevents overflow and drying; the stirring pump ensures uniform mixing and temperature distribution, preventing wax solidification and stratification. A manual valve connected to the outlet is used for wax discharge, allowing for precise flow control, flexible operation, and cost and maintenance advantages. Parallel wax delivery pipelines enhance delivery flexibility and reliability, with two wax pumps (one for standby) and a pre-positioned manual valve ensuring continuous delivery and facilitating flow adjustment and maintenance. The dual filtration branches of the filtration system ensure continuous filtration, improving filtration efficiency and flexibility; manual valves at both ends of the filters facilitate maintenance, replacement, and flow adjustment; pressure sensors monitor operating status, ensuring system safety and stability. The loop pipeline connects to the wax storage tank for wax recycling, maintaining wax uniformity; the gun station branch facilitates sampling, substance addition, and localized operations; the thermometer monitors and controls temperature, ensuring safe and stable operation; manual valves are used for flow control and system maintenance; and a back pressure valve stabilizes system pressure and works in conjunction with other equipment. The manual valves on the branch pipelines on both sides of the back pressure valve allow for precise pressure adjustment, facilitating maintenance and repair. The bypass valve provides emergency pressure relief protection, offering flexibility in pressure regulation and playing a crucial role in cases of abnormal system pressure or temporary process adjustments. These devices work together to ensure efficient, safe, and stable operation of wax storage, transportation, and filtration, meeting diverse production needs and reducing production costs and safety risks.

[0019] The wax supply module connects to the wax injection chamber, ensuring a stable supply of wax. Combined with the previously mentioned wax storage tank and delivery pipelines, it continuously supplies qualified wax to the injection chamber, ensuring uninterrupted wax injection. Simultaneously, under the coordination of the central control module, the wax delivery volume and timing can be flexibly adjusted according to actual production needs, working closely with each stage to ensure efficient and stable operation of the entire process from wax storage to injection, thereby improving production efficiency and product quality. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the wax supply module of this utility model.

[0023] Reference numerals in the attached diagram: 1. Wax storage tank; 2. Back pressure valve; 3. Thermometer; 4. Pressure sensor; 5. Wax pump; 6. Level gauge; 7. Manual valve; 8. Agitator pump; 9. Bypass valve; 10. Filter. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example

[0028] Reference Figure 1 as well as Figure 2 This utility model discloses an automatic quantitative control system for wax injection equipment. The utility model includes a central control module and a wax supply module. The central control module is connected to the wax injection chamber, the wax supply module and the vehicle model recognition module via a bus. The wax supply module is connected to the wax injection chamber.

[0029] like Figure 1The wax injection chamber includes two workstations. Each workstation has two injection stations: a first injection station and a second injection station. Each injection station is equipped with a wax injection control module. The central control module is connected to the first injection station of the first workstation via a first bus, a second bus, a third bus, and a fourth bus. A fifth bus connects to the wax supply module, and a sixth bus connects to the vehicle model recognition module.

[0030] Specifically, the central control module uses a high-performance processor, integrating advanced microcontrollers and digital signal processors, and is responsible for the overall system operation coordination, external data processing, and command transmission. The vehicle body recognition module uses an advanced laser scanner to scan and recognize the vehicle body barcode before it enters the waxing station. It can quickly and accurately acquire vehicle body information and transmit this information to the central control module, providing a basis for precise waxing.

[0031] Further configuration: the wax injection chamber includes at least one station; the station includes at least one gun station; the gun station is equipped with a wax injection control module.

[0032] Specifically, the wax injection control module uses a high-performance, cost-effective processor, integrating advanced microcontrollers, digital signal processors, high-performance counters, and PN / Modbus communication modules. It is responsible for the operation scheduling, data processing, and command generation of each wax injection station. It possesses a degree of independence and flexibility, can store wax injection process parameters for various vehicle models, and can quickly retrieve corresponding parameters based on vehicle body information. Simultaneously, it performs real-time analysis of data from various sensors, generating control commands for each actuator through precise algorithms to ensure the accuracy and stability of the wax injection process.

[0033] Further configuration: The gun station is equipped with a flow sensor.

[0034] Specifically, high-precision flow sensors are installed at key locations in the wax injection gun station controlled by each wax injection control module to accurately measure the wax flow rate in real time. The sensors transmit the measured flow data to the wax injection control module, which compares and analyzes it with the preset wax injection volume. Through a closed-loop control algorithm, the response time of the wax valve is adjusted in a timely manner to ensure that the error between the actual wax injection volume and the preset value is controlled within a very small range.

[0035] Further configuration: The wax supply module includes a wax storage tank 1, a wax pump 5, and a filtration system; the wax storage tank 1 is connected to at least one gun station.

[0036] Specifically, the wax supply module consists of a wax storage tank 1 made of corrosion-resistant material, a high-precision variable frequency speed-regulating delivery pump (hereinafter referred to as wax pump 5), a pressure-stable delivery pipeline, and an adjustable back pressure valve 2. The wax storage tank 1 is equipped with a level sensor and a temperature sensor to monitor the wax level and temperature in real time, ensuring the wax is in a suitable working condition. A pressure detection sensor is installed at the outlet of the wax pump 5, and the wax pump 5 adjusts its frequency according to the pressure to ensure a stable wax supply through the pipeline.

[0037] Further configuration: The wax storage tank 1 is equipped with a thermometer 3, a level gauge 6, and a stirring pump 8.

[0038] Specifically, wax exhibits different physical properties at different temperatures. The temperature of the wax in the storage tank 1 can be monitored in real time using thermometer 3. For example, certain types of wax have an optimal storage temperature range; some industrial waxes are suitable for storage between 30-40℃. If the temperature is too high, the wax may soften or even melt excessively, resulting in excessive fluidity and increasing the risk of leakage; if the temperature is too low, the wax will become more viscous, which is not conducive to subsequent handling and processing. The level gauge 6 accurately displays the wax level in the storage tank 1. This is crucial for wax inventory management, allowing for precise calculation of the wax volume in the storage tank 1 based on the data from the level gauge 6, thus enabling reasonable planning of wax usage. For example, on a wax production line, knowing the remaining wax in the storage tank 1 allows for advance wax procurement, preventing production line shutdowns due to wax shortages. The stirring pump 8 helps to homogenize the wax temperature. Inside the storage tank 1, the wax near the tank walls and bottom may have different temperatures than the wax in the center due to factors such as heat conduction. When the stirring pump 8 is working, it circulates the wax within the tank, thus ensuring even heat distribution. For example, when heating wax, the stirring pump 8 accelerates heat transfer, allowing the wax to quickly reach the set temperature and improving heating efficiency. For some high-melting-point waxes, solidification and stratification are prone to occur during storage. The stirring pump 8, through continuous stirring, can prevent this. For instance, in winter when temperatures are low, the wax's fluidity decreases, making it prone to stratification within the container. The periodic operation of the stirring pump 8 can break up this stratification, ensuring the wax's uniformity.

[0039] Further configuration: The outlet connection of the wax storage tank 1 is equipped with a manual valve 7, which is used for wax discharge.

[0040] The configuration is further defined as follows: the outlet of the wax storage tank 1 is connected to at least one wax delivery pipeline, and each wax delivery pipeline is connected in parallel; two wax pumps 5 are installed on the wax delivery pipeline, and a manual valve 7 is installed before each wax pump 5. One of the two wax pumps 5 is in use and the other is on standby.

[0041] Specifically, the parallel wax delivery pipelines provide multiple delivery paths. These paths support multiple pump stations, with one pump station corresponding to one delivery path. Furthermore, if one wax delivery pipeline requires maintenance, repair, or malfunctions, wax can be delivered through other parallel pipelines without affecting the overall wax delivery process. The use of a one-for-one backup wax pump configuration significantly improves the reliability of the wax delivery system. In the event of a failure of the main wax pump 5, the backup wax pump 5 can be immediately put into use, preventing production disruptions due to the failure of the main wax pump 5.

[0042] Further configuration: the outlet of the wax delivery pipeline is connected to a filtration system, which includes two filtration branches, each equipped with a filter 10, and each end of the filter 10 is connected to a manual valve 7; each end of the filtration system is connected to a pressure sensor 4.

[0043] Specifically, the filtration branch can be flexibly selected based on the content and type of impurities in the wax. If the impurity particles in the wax are large, it may be necessary to use the branch containing filter 10 with a larger mesh size for preliminary filtration; if the wax requires higher purity, the branch containing filter 10 with a smaller mesh size can be selected for fine filtration.

[0044] Further configuration: the filtration system is connected to the inlet of the wax storage tank 1 via a loop pipe; at least one gun station branch is provided on the loop pipe, and the gun station branch is connected to the gun station; a thermometer 3, a manual valve 7, and a back pressure valve 2 are provided on the loop pipe.

[0045] Specifically, the return pipeline sends the filtered wax back to the wax storage tank 1, forming a circulation system. This ensures that impurities in the wax are thoroughly filtered, improving its quality. The wax returning from the filtration system allows for more uniform mixing of the wax in the storage tank 1. Because the returned wax may differ from the original wax in the tank in terms of temperature, composition, etc., circulation helps to reduce these differences.

[0046] Further configuration: A branch pipeline is connected to both sides of the back pressure valve 2, and a manual valve 7 and a bypass valve 9 are installed on the branch pipeline. The pressure is increased to the set value through the back pressure valve 2 to ensure stable delivery of wax. The bypass valve 9 is used for pressure relief.

[0047] Specifically, the back pressure valve 2 is responsible for increasing the pressure in the loop pipeline to the set value to ensure stable wax delivery. The manual valve 7 on the branch pipeline provides additional fine-tuning control for pressure regulation. When the pressure set by the back pressure valve 2 needs fine-tuning, it can be achieved through the manual valve 7. The most important function of the bypass valve 9 is to relieve pressure when the system pressure rises abnormally. When the pressure in the loop pipeline exceeds the safety threshold due to a sudden event (such as severe blockage of the filter 10 or excessively high output pressure caused by a malfunction of the wax pump 5), the bypass valve 9 quickly opens, diverting some of the wax to a low-pressure area, thereby reducing the pressure in the pipeline and preventing serious accidents such as pipeline rupture and equipment damage caused by excessive pressure.

[0048] Working Principle: Before the vehicle enters the waxing station, the vehicle identification module quickly scans and identifies the vehicle's barcode and transmits the vehicle information to the central control module. The central control module extracts the required vehicle model information and transmits it to each level of the waxing control module. Each waxing control module retrieves the pre-stored waxing process parameters for that vehicle model based on the received information (if the central control module has not transmitted or has transmitted the wrong model, an offline mode can be selected to manually enter the model information). This includes the nozzle number corresponding to each part, the wax volume, and the time for front blowing, waxing, and rear blowing, etc., and displays them on the HMI (information display device) of each substation for operators to refer to. The wax delivery module automatically adjusts the frequency of the wax pump 5 according to the pipeline pressure to ensure a sufficient and stable wax supply. After each part is waxed, the corresponding nozzle number disappears from the substation's HMI. When all nozzle numbers disappear, it indicates that the waxing control operation of this waxing control module is complete. Once all waxing control modules have completed the above operations, it indicates that the waxing work for that vehicle is finished, and it can be released to the next process stage.

[0049] The wax injection control module is independent and can complete the wax injection process on the vehicle body automatically without intervention from the central control module; for example... Figure 1 As shown, in the wax injection control module, "01" and "03", and "02" and "04" can be used interchangeably, allowing the nozzle number, wax injection volume, and wax injection time to be switched to any one of the wax injection control modules. Therefore, the functionality of this control system architecture not only ensures uninterrupted and stable operation but also enhances the flexibility of the wax injection process, further demonstrating the flexibility of the production line.

[0050] The working principle and beneficial effects of this utility model are as follows:

[0051] The central control module, acting as the core hub, is connected to the wax injection chamber, wax supply module, and vehicle model recognition module via a bus, enabling unified control over the entire wax supply and injection process. Based on information from the vehicle model recognition module, it precisely adjusts the wax supply module to adapt the wax quantity and injection process to different vehicle models, significantly improving the targeting and accuracy of the wax injection.

[0052] The wax storage tank 1 is equipped with a thermometer 3, a level gauge 6, and a stirring pump 8, enabling temperature monitoring and control to ensure the safety of wax storage and processing; precise level control facilitates material management and prevents overflow and drying; the stirring pump 8 ensures uniform mixing and temperature distribution, preventing wax solidification and stratification. A manual valve 7 connected to the outlet is used for wax discharge, allowing for precise flow control, flexible operation, and cost and maintenance advantages. Parallel wax delivery pipelines improve delivery flexibility and reliability; dual wax pumps 5 are used in one standby mode, and the pre-positioned manual valve 7 ensures continuous delivery and facilitates flow adjustment and maintenance. The dual filtration branches of the filtration system ensure continuous filtration and improve filtration efficiency and flexibility; manual valves 7 at both ends of the filter 10 facilitate maintenance, replacement, and flow adjustment; a pressure sensor 4 monitors the operating status to ensure system safety and stability. The loop pipeline connected to the wax storage tank 1 enables wax recycling and maintains wax uniformity; the gun station branch facilitates sampling, substance addition, and localized operations; the thermometer 3 monitors and controls temperature to ensure safe and stable operation; the manual valve 7 is used for flow control and system maintenance; and the back pressure valve 2 stabilizes system pressure and works in conjunction with other equipment. The manual valves 7 on the branch pipelines on both sides of the back pressure valve 2 allow for precise pressure adjustment, facilitating maintenance and repair; the bypass valve 9 provides emergency pressure relief protection, offering flexibility in pressure regulation and playing a crucial role in cases of abnormal system pressure or temporary process adjustments. These devices work together to ensure efficient, safe, and stable operation of wax storage, transportation, and filtration, meeting diverse production needs and reducing production costs and safety risks.

[0053] The wax supply module connects to the wax injection chamber, ensuring a stable supply of wax. Combined with the previously mentioned wax storage tank 1 and wax delivery pipelines, it continuously supplies qualified wax to the wax injection chamber, ensuring uninterrupted wax injection. Simultaneously, under the coordination of the central control module, the wax delivery volume and timing can be flexibly adjusted according to actual production needs, working closely with each stage to ensure efficient and stable operation of the entire process from wax storage to wax injection, thereby improving production efficiency and product quality.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic dosing control system for a wax injection apparatus, characterized in that, The application relates to a wax injection system for vehicle models, which comprises a central control module and a wax supply module, wherein the central control module is connected with a wax injection chamber body, the wax supply module and a vehicle model identification module through a bus. The wax supply module is connected with the wax injection chamber body. The application relates to a wax injection system for vehicle models, which comprises a central control module and a wax supply module, wherein the central control module is connected with a wax injection chamber body, the wax supply module and a vehicle model identification module through a bus.

2. The automatic dosing control system for a wax injection apparatus according to claim 1, wherein The wax injection chamber body comprises at least one working position. The working position comprises at least one gun station. The gun station is provided with a wax injection control module. The gun station is provided with a flow sensor.

3. An automatic dosing control system for a wax injection apparatus as claimed in claim 2, wherein, The wax supply module comprises a wax storage tank (1), a wax pump (5) and a filter system. The wax storage tank (1) is connected with at least one gun station.

4. The automatic dosing control system for a wax injection apparatus according to claim 1, wherein The wax storage tank (1) is provided with a thermometer (3), a liquid level meter (6) and a stirring pump (8). The outlet of the wax storage tank (1) is connected with a manual valve (7) for discharging wax. The outlet of the wax storage tank (1) is connected with at least one wax conveying pipeline, and the wax conveying pipelines are connected in parallel.

5. An automatic dosing control system for a wax injection apparatus as claimed in claim 4, wherein, The wax conveying pipeline is provided with two wax pumps (5), and each wax pump (5) is provided with a manual valve (7) in front of the wax pump (5). The outlet of the wax conveying pipeline is connected with a filter system, the filter system comprises two filter branches, the filter branches are provided with filters (10), and the two ends of the filter (10) are respectively connected with a manual valve (7).

6. An automatic dosing control system for a wax injection apparatus as claimed in claim 4, wherein, The filter system is respectively connected with a pressure sensor (4) at two ends. The filter system is connected with the inlet of the wax storage tank (1) through a loop pipeline.

7. An automatic dosing control system for a wax injection apparatus as defined in claim 4, wherein The loop pipeline is provided with at least one gun station branch, and the gun station branch is connected with a gun station. The loop pipeline is provided with a thermometer (3), a manual valve (7) and a back pressure valve (2). The back pressure valve (2) is connected with a branch pipeline at two sides, the branch pipeline is provided with a manual valve (7) and a bypass valve (9).

8. An automatic dosing control system for a wax injection apparatus as claimed in claim 7, wherein, ​ ​ ​ 9. An automatic dosing control system for a wax injection apparatus as defined in claim 8, wherein ​ ​ ​ ​ 10. The automatic dosing control system for a wax injection apparatus according to claim 9, wherein ​ ​

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