A group integrated acid-base etching production line and method for processing beat equalization

Abstract

The application provides a kind of processing beat equalization group integrated acid-base etching production line and method, production line includes rack, three tank device and feeding and discharging device, three tank device includes first etching tank component, second etching tank component and multifunctional tank component between them, feeding and discharging device includes two feeding transmission components and mechanical arm clamping and feeding component, mechanical arm clamping and feeding component clamps and feeds product basket to etching tank etching, then clamps and feeds to multifunctional tank component post-processing, clamping and feeding timing configuration is to make the product basket of two etching tank components complete etching alternately enter multifunctional tank component, and the difference between the time when the first etching tank component and the second etching tank component complete etching processing is not less than the time required for single post-processing of the multifunctional tank component;Method includes staggered peak feeding, independent etching, alternate post-processing and discharging.The application relates to the field of glass via acid-base etching processing.

Description

Technical Field

[0001] This invention relates to the field of acid and alkali etching processing of glass through holes, and more particularly to a group-integrated acid and alkali etching production line and method with balanced processing cycle time. Background Technology

[0002] In the field of micro-machining such as through-hole glass (TGV), acid and alkali etching is one of the core processes that determines the final quality of the product. Early acid and alkali etching production lines adopted a single-tank intermittent operation mode. Operators manually placed product baskets into each functional tank in sequence, completing one process before transferring to the next tank. This method was labor-intensive, involved many human interventions, and made it difficult to guarantee batch-to-batch consistency. With the development of automation technology, production lines have evolved into open, long-line serial layouts. From loading at the beginning to unloading at the end, more than ten functional tanks are arranged sequentially along the line. Product baskets are picked up and transported by robotic arms in a fixed order, undergoing complete processes such as cleaning, acid and alkali etching, spraying, rinsing, ultrasonication, and drying. Some production lines allow skip processing for specific process requirements. For example, if only tanks 1, 3, and 5 are needed, the robotic arm can skip tanks 2 and 4 for selective picking. Regardless of whether sequential or skip processing is adopted, this type of production line is a single-channel serial flow mode, where only one product basket can be in a complete process flow cycle at any given time.

[0003] However, the aforementioned serial processing mode exhibits significant efficiency bottlenecks when faced with acid and alkali corrosion processes. Acid and alkali corrosion, especially alkaline corrosion, can take over ten hours per process, while the accompanying post-processing steps such as cleaning, spraying, rinsing, and drying only take a few tens of minutes. This huge difference in time between the preceding and following processes means the entire production line's cycle time is completely constrained by the lengthy corrosion process. In the single-channel serial mode, the next product must wait for the previous product to complete all processes, including corrosion, before it can be fed in. This results in a large amount of idle waiting time in the post-processing stage, leading to extremely low equipment utilization and further complicating the process. The problem is that if attempts are made to shorten the loading interval to increase output, the next product may have already completed its preceding cleaning process before the previous product has finished corrosion. This forces the robotic arm to hold the basket of the next product in mid-air while it is waiting to be released from the corrosion tank. Prolonged exposure of the products to the air can lead to quality risks such as surface oxidation, dust contamination, and even crystallization of the chemical solution. In addition, the long, series-connected layout with more than ten tanks arranged sequentially occupies a large area, and the sealing of each tank varies, allowing acid and alkali high-temperature vapors to easily escape from the tank openings, posing a threat to the working environment and personnel safety. For research and development testing scenarios, this production line can only execute one corrosion process route, and cannot flexibly configure acidic and alkaline corrosion conditions for parallel testing in the same batch, severely restricting the efficiency of process development.

[0004] Therefore, the inventors urgently need a group-integrated acid-base corrosion production line and method for processing cycle time equalization to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this invention provides a group-integrated acid-base corrosion production line and method with balanced processing cycle time. It aims to solve the problems in the existing acid-base corrosion production line caused by the single-channel serial flow mode, which leads to a severe imbalance in the cycle time between the long-cycle corrosion process and the short-cycle post-processing process, low equipment utilization, limited material feeding intervals, and products being forced to wait in the air, thus affecting the processing quality.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a group-integrated acid-base corrosion production line with balanced processing cycle, comprising a frame and a three-tank device and a loading / unloading device mounted on the frame. The three-tank device includes a first corrosion tank assembly, a second corrosion tank assembly, and a multi-functional tank assembly located between the first and second corrosion tank assemblies. The loading / unloading device includes a first loading conveyor assembly corresponding to the first corrosion tank assembly, a second loading conveyor assembly corresponding to the second corrosion tank assembly, and a robotic arm clamping assembly located between the first and second loading conveyor assemblies. The robotic arm clamping assembly is used to clamp and transport product baskets from the first or second loading conveyor assembly to the first or second corrosion tank assembly for corrosion operations, and to clamp and transport the product baskets after corrosion operations to the multi-functional tank assembly for post-processing. The clamping timing of the robotic arm clamping assembly is configured such that product baskets that have completed corrosion processing in the first and second corrosion tank assemblies alternately enter the multi-functional tank assembly, and the time difference between the completion of corrosion processing in the first and second corrosion tank assemblies is not less than the time required for a single post-processing operation in the multi-functional tank assembly.

[0007] Based on the above, the beneficial effect of a group-integrated acid-base etching production line with balanced cycle time is to solve the problems in existing acid-base etching production lines caused by the single-channel serial flow mode, which result in severe imbalance of cycle time between long-cycle etching processes and short-cycle post-processing processes, low equipment utilization, limited material feeding intervals, and products being forced to wait in the air, thus affecting processing quality; mainly reflected in: 1. This invention sets up a first corrosion tank assembly and a second corrosion tank assembly to independently receive product baskets from the first feeding conveyor assembly and the second feeding conveyor assembly, and enables the first corrosion tank assembly and the second corrosion tank assembly to simultaneously perform long-term corrosion processing on the products in their respective product baskets. This achieves parallel operation of the corrosion process, thereby breaking the rigid constraint that the corrosion and post-processing processes must be sequentially processed in traditional single-channel production lines, and fundamentally eliminating the problem of cycle imbalance between the long corrosion cycle and the short post-processing cycle. 2. This invention arranges a multi-functional tank assembly between the first and second corrosion tank assemblies in a three-tank device. A robotic arm clamping assembly alternately feeds the etched products, along with product baskets, from the corrosion tank assemblies into the multi-functional tank assembly for post-processing according to a preset clamping sequence. The sequence is configured such that the difference between the completion times of the first and second corrosion tank assemblies is not less than the time required for a single post-processing cycle of the multi-functional tank assembly. This ensures that the release times of the etched products from the first and second corrosion tank assemblies are staggered, guaranteeing that at any given time, at most one product basket needs to occupy the multi-functional tank assembly for post-processing. This completely avoids the situation where products on both sides compete for the same multi-functional tank assembly after simultaneous corrosion, eliminating the potential danger of products being forced to hover in the air waiting for tank release due to competition. 3. This invention configures the first and second feeding conveyor components to feed materials independently, and uses a robotic arm clamping component to independently schedule the two feeding conveyor components and the two etching tank components. This allows the processing of a new product basket from any feeding conveyor component to be clamped to the corresponding etching tank component, and its processing is completely independent of the other side and is not restricted by the process stage of the product on the other side. This achieves free adjustment of the feeding interval and completely eliminates the limitation in traditional serial production lines that the previous product must go through all processes before the next feeding can be carried out. 4. This invention uses a robotic arm clamping assembly to directly transfer the etched product, along with its basket, from the etching tank assembly to the multi-functional tank assembly for continuous post-processing. During this process, the product basket is stably held by the robotic arm and quickly transferred to the sealed tank environment. By coordinating the clamping timing with the staggered control of the product release rhythm of the two etching tank assemblies, the invention avoids the situation where two product baskets compete for the multi-functional tank assembly simultaneously, causing either basket to be forced to hover in the air waiting for release. This effectively eliminates the risk of surface contamination and quality deterioration caused by prolonged exposure of the product to air after etching while waiting for post-processing.

[0008] Furthermore, the time required for a single corrosion process of the first corrosion tank assembly is defined as T_1, the time required for a single corrosion process of the second corrosion tank assembly is defined as T_2, the time required for a single post-processing of the multi-functional tank assembly is defined as t, the time difference between two adjacent loadings is defined as ΔT, and the first corrosion tank assembly is loaded before the second corrosion tank assembly. Then the time difference ΔT satisfies: ΔT≥t+max(0,T_1-T_2), so that the time difference between the completion of corrosion processing of the first corrosion tank assembly and the second corrosion tank assembly is not less than t.

[0009] Based on the above, the beneficial effect of ensuring that the time difference between the completion of the corrosion process of the first corrosion tank assembly and the second corrosion tank assembly is not less than t is that the products of the two corrosion tank assemblies enter the multi-functional tank in sequence, fundamentally avoiding the competition between the products on both sides for the same post-processing tank position, thereby eliminating the risk of products being suspended in the air due to waiting, and ensuring that the entire production line can still maintain orderly and continuous flow under multi-variety and variable cycle conditions.

[0010] Furthermore, the first corrosion tank assembly and / or the second corrosion tank assembly include an inner corrosion tank body, an integrated bubbling and replenishing structure, a U-shaped frame, and a vibration drive device. The integrated bubbling and replenishing structure is disposed at the bottom of the inner corrosion tank body, the U-shaped frame is mounted inside the inner corrosion tank body for supporting the product basket, and the vibration drive device is disposed outside the inner corrosion tank body. The U-shaped frame is connected to the output end of the vibration drive device.

[0011] Based on the above, the beneficial effects of the corrosion tank's internal structure are that it confines high-temperature strong acid or strong alkali solutions within the tank, preventing spillage and corrosive vapors from escaping into the surrounding environment, ensuring long-term safe operation of the equipment, and reducing health threats to operators. The beneficial effects of the integrated bubbling and replenishment structure are that it integrates replenishment, water replenishment, circulation, and bubbling generation into a single bottom component, significantly reducing the number of through-holes on the tank's sidewalls and bottom. This fundamentally reduces the probability of leakage failure caused by corrosion fatigue at the welded joints of the openings, while the internal flow channel design ensures that each... The bubbling outlet pressure is balanced and stable, avoiding excessive local impact that could damage the micropore morphology of the product. The U-shaped frame supports the product basket and suspends the product in the middle of the corrosion tank, ensuring that both the top and bottom surfaces of the product are in full contact with the corrosion liquid. The vibration drive device intermittently drives the U-shaped frame and the product basket to vibrate up and down during the corrosion process, forcibly shaking off the loosened powder from the glass micropores through mechanical vibration, preventing the debris from re-adhering to the pore wall, thereby improving the smoothness of the pore wall and the uniformity of corrosion.

[0012] Furthermore, the integrated bubbling and liquid replenishment structure includes a bubbling main board, a bubbling base plate, and an input pipe. The bottom of the bubbling main board is provided with a bubbling receiving groove, which includes a liquid input area and a bubbling area. The liquid input area is located at one end of the bubbling receiving groove, and the bubbling area is located in the remaining area of ​​the bubbling receiving groove. The bubbling area is provided with multiple elongated protrusions, each extending from the liquid input area towards the other end of the bubbling receiving groove. The multiple elongated protrusions are arranged sequentially at intervals in a direction perpendicular to the extension direction. Adjacent elongated protrusions and those located at the edges are spaced apart. Multiple independent bubbling channels are formed between the boss and the wall of the bubbling receiving groove. Each bubbling channel has multiple small bubbling holes that penetrate the main bubbling board at intervals along its own extension direction. The liquid input area is provided with a liquid input port. One end of the input pipe is connected to the liquid input port, and the other end of the input pipe is used to connect to an external gas-liquid supply system. The bubbling base plate is set at the bottom of the main bubbling board. Each of the elongated bosses is fixedly connected to the bubbling base plate and seals the bubbling receiving groove. The cross-sectional area of ​​each bubbling channel is greater than the sum of the areas of each bubbling hole in each bubbling channel.

[0013] Based on the above, the beneficial effects of the bubbling main plate are that it integrates the flow channels and orifices required for liquid replenishment, water replenishment, circulation reflux, and bubbling generation into a single plate, significantly reducing the number of through-holes on the sidewalls and bottom of the tank, lowering the risk of corrosion and leakage caused by welding and openings, and providing a stable base platform for the distribution of various functional media; the beneficial effects of the bubbling base plate are that it is fixedly connected to the bubbling main plate and together seals the bubbling receiving tank, separating each bubbling flow channel into an independent sealed chamber, preventing liquid cross-flow between different flow channels, and ensuring that the pressure in each flow channel is established independently and without interference; the beneficial effects of the inlet pipe are that it introduces externally supplied liquid or gas into the liquid inlet area, achieving the goal of using only a single pipe interface. It can switch between supplying replenishing fluid, water, circulating fluid, or compressed air according to time sequence, replacing the traditional multiple independent interfaces and reducing pipeline welding points and sealing surfaces from the source. The beneficial effect of the bubbling receiving tank is that it forms a concave space at the bottom of the bubbling main board to accommodate the diverting medium, providing a buffer and temporary storage area for the fluid from the input pipe. This allows the high-speed fluid to slow down and stabilize its pressure in the tank before being smoothly distributed to subsequent flow channels. The beneficial effect of the liquid input area is that it receives the liquid from the input pipe and serves as the first station for fluid distribution, achieving initial diffusion of the single incoming flow, eliminating the jet impact effect, and preventing excessively high local flow velocities from directly flooding into the bubbling area and affecting the uniformity of the outlet pressure. The beneficial effect of the bubbling area is that it centrally arranges multiple long strip protrusions to form an array. The flow channel network ensures that the fluid is evenly distributed across the corresponding area of ​​the entire bottom surface of the corrosion tank, guaranteeing that the bubbling effect covers the entire projected area of ​​the product basket. The elongated protrusions, when fitted to the bubbling base plate, form separating ridges that isolate the flow channels. This enhances the structural rigidity of the bubbling main plate while dividing the bubbling area into multiple parallel flow paths, allowing the fluid in each channel to travel independently and without cross-contamination. The bubbling flow channels guide the fluid along their extension direction to each bubbling orifice, establishing a stable back pressure through the area difference between the channel cross-sectional area and the total area of ​​the orifices. This ensures approximately equal static pressure before each orifice, guaranteeing consistency in bubbling rate and bubble size. The bubbling orifices also provide benefits... The liquid or gas in the flow channel is released into the corrosion tank in the form of fine bubbles, which achieves the formation of a uniformly distributed group of microbubbles at the bottom of the tank. This generates a gentle and stable scouring force on the product surface, avoiding damage to the roundness and aperture of the glass through holes due to uneven impact. The beneficial effect of the liquid inlet is that it connects the inlet channel of the inlet pipe to the bubble-containing tank, allowing the future flow to smoothly transition from the external pipeline to the internal cavity of the bubble-forming mainboard. The beneficial effect of the external gas-liquid supply system is that it selectively supplies acid, alkali, water, circulating liquid or compressed gas to the inlet pipe according to the process sequence requirements. This allows for the switching of different media in the same inlet pipe according to time sequence, satisfying the time-sharing independent operation of liquid replenishment, water replenishment, circulation and bubbling functions.

[0014] Furthermore, the first corrosion tank assembly and / or the second corrosion tank assembly also include a serpentine coil and a sampling box. The serpentine coil is disposed in the inner tank of the corrosion tank and is arranged in a three-dimensional serpentine shape, meandering along the inner rear wall, inner bottom wall and inner front wall of the inner tank in sequence. The two ends of the serpentine coil are respectively used to connect to the chilled water supply pipeline. The sampling box is disposed on the outer wall of the inner tank of the corrosion tank, and the interior of the sampling box is in communication with the internal liquid of the inner tank of the corrosion tank.

[0015] Based on the above, the beneficial effects of the serpentine coil are as follows: It forces the high-temperature corrosive liquid in the corrosion tank to cool down through internal chilled water flow, rapidly cooling the solution to a safe temperature range before drainage. This prevents the high-temperature solution from overheating and causing accelerated metal corrosion or softening and deformation of non-metallic materials when flowing through the recovery pipes or equipment, thus ensuring the structural integrity and long-term reliability of the recovery system. The sampling box provides an independent sampling chamber that is in real-time communication with the liquid in the corrosion tank. This allows operators to insert several test pieces at the same time points as the product corrosion begins, without interrupting the corrosion process or opening the corrosion tank's sealing cover. A test piece can be periodically removed at preset intervals to observe the corrosion effect, enabling real-time monitoring and process adjustment of the corrosion progress. This avoids temperature fluctuations and steam leakage caused by frequent opening of the cover for sampling. The chilled water supply pipeline continuously delivers low-temperature cooling medium to the serpentine coil, providing a stable cold source for its heat exchange function. This ensures a controllable and continuous cooling process that meets the cooling rate requirements before drainage.

[0016] Furthermore, the upper part of the frame is provided with three tank sealing cover assemblies corresponding to the first corrosion tank assembly, the multifunctional tank assembly, and the second corrosion tank assembly, respectively. Each tank sealing cover assembly includes a direct drive mechanism mounted on the frame and a sealing door disposed at the output end of the direct drive mechanism. Guide structures are respectively provided on both sides of the upper surface of the first corrosion tank assembly, the multifunctional tank assembly, and the second corrosion tank assembly. The two sides of the sealing door are guided and fitted onto the guide structures. Sealing cover pressing mechanisms are also provided on the upper two sides of the first corrosion tank assembly, the multifunctional tank assembly, and the second corrosion tank assembly. Each sealing cover pressing mechanism includes a pressing cylinder and a pressing block disposed at the output end of the pressing cylinder. When the sealing door is driven to the corresponding upper surface of the tank, the pressing cylinder drives the pressing block to press on the upper surface of the sealing door.

[0017] Based on the above, the beneficial effects of the tank sealing cover assembly are that each tank is independently equipped with its own sealing cover and drive and clamping unit, enabling the sealing covers of the three tanks to be opened and closed independently without interference. This ensures that the two side corrosion tanks remain reliably sealed during long-term heat preservation corrosion, while the middle multi-functional tank can be flexibly opened and closed according to the post-processing rhythm, avoiding interference from the operation of a single tank on the sealing status of other tanks. The beneficial effect of the direct drive mechanism is that it directly drives the sealing door to move linearly along the guide structure, achieving rapid and smooth opening and closing of the tank opening without intermediate transmission conversion. This simplifies the structural layout of the top of the frame and provides precise positioning of the sealing door's stroke endpoint, ensuring accurate alignment with the tank opening each time it is closed. The beneficial effect of the sealing door is that, driven by the direct drive mechanism, it covers the opening on the upper surface of the tank, effectively sealing the high-temperature acid and alkali vapors and volatile corrosive gases inside the tank, preventing harmful gases from escaping into the workshop environment, thereby ensuring air quality and personnel safety in the work area. The beneficial effect of the guide structure is that it provides sliding limit and movement guidance for both sides of the sealing door, ensuring... Throughout the entire translation process, the sealing door remains parallel and aligned with the upper surface of the groove, preventing it from tilting or warping, which could lead to incomplete closure or uneven compression of the sealing ring, thus maintaining the stability and repeatability of the seal. The sealing cover clamping mechanism applies supplementary vertical downward pressure after the sealing door is in place, strengthening the contact clamping force between the sealing door and the sealing ring. This compensates for any permanent compression deformation or loosening of the sealing ring that may occur due to prolonged high-temperature operation, ensuring the groove remains airtight throughout the corrosion process and during the drainage and cooling phases. The beneficial effects of the pressure cylinder are that it outputs linear downward pressure after the sealing door is in place and can be quickly released when it needs to be opened, realizing a rapid switch between pressing and releasing actions. This ensures that the sealing door can obtain sufficient pressing force to guarantee a seal, and can also be released in time during process changes without affecting the production line's flow rhythm. The beneficial effect of the pressure block is that it disperses and transmits the concentrated thrust output by the pressure cylinder to the upper surface of the sealing door, thus avoiding excessive local pressure that could cause deformation of the sealing door. At the same time, it makes the pressing force evenly distributed on both sides of the sealing door, improving the consistency of the force on the sealing contact surface.

[0018] Furthermore, the first corrosion tank assembly and / or the second corrosion tank assembly also include a heating system, a circulating filtration structure, an ultrasonic generator, a liquid level sensor, and a concentration sensor. The heating system and the ultrasonic generator are disposed inside the corrosion tank. The input end of the circulating filtration structure is connected to the upper middle part of the corrosion tank, and the output end of the circulating filtration structure is connected to the input pipe.

[0019] Based on the above, the heating system provides the following benefits: it heats and maintains the corrosive liquid in the corrosion tank at the required process temperature, providing stable thermochemical reaction conditions during alkaline or acid corrosion, ensuring that the corrosion rate and uniformity are unaffected by ambient temperature fluctuations, and meeting the stringent temperature requirements of specific high-temperature corrosion processes. The circulating filtration structure allows the liquid in the upper part of the corrosion tank to be extracted, filtered, and then reintroduced into the tank through a bubbling and replenishment structure. This continuously removes suspended glass powder and reaction precipitates during the corrosion process, preventing impurities from re-adhering to the product surface and the inner walls of micropores, while maintaining liquid flow and renewal within the tank, thus slowing down the aging rate of the chemical solution. The ultrasonic generator applies ultrasonic vibration energy into the tank during the corrosion process, achieving… The cavitation effect and micro-jet action forcefully remove and disperse the corroded powder and reaction products from the glass micropores into the liquid, improving the uniformity and cleanliness of corrosion inside the micropores and reducing local corrosion stagnation caused by powder accumulation. The liquid level sensor monitors the liquid level changes in the corrosion tank in real time, enabling timely liquid replenishment signals when the liquid level drops due to high-temperature evaporation, ensuring that the product is always submerged below the effective liquid level and preventing uneven corrosion or scrap due to excessively low liquid level. The concentration sensor detects the effective concentration of acid or alkali in the corrosion solution in real time, triggering acid or alkali replenishment when the concentration deviates from the process range due to water evaporation or reaction consumption, stabilizing the concentration within the preset range, and ensuring the consistency and repeatability of corrosion effects between batches.

[0020] Furthermore, the present invention provides a grouped integrated acid-base corrosion treatment method for cycle time equalization, comprising the following steps: S1: The robotic arm clamping assembly clamps the first product basket carrying the product from the first feeding conveyor assembly to the first corrosion tank assembly. After a time interval of feeding time difference ΔT, the robotic arm clamping assembly then clamps the second product basket carrying the product from the second feeding conveyor assembly to the second corrosion tank assembly. S2: The first corrosion tank assembly performs corrosion processing on the products in the first product basket, and the second corrosion tank assembly performs corrosion processing on the products in the second product basket. The first corrosion tank assembly and the second corrosion tank assembly each independently select acid corrosion or alkaline corrosion. S3: After the products in the first product basket have completed the etching process, the robotic arm clamping assembly clamps the product basket from the first etching tank assembly to the multifunctional tank assembly; after the products in the second product basket have completed the etching process, the robotic arm clamping assembly clamps the product basket from the second etching tank assembly to the multifunctional tank assembly. S4: The multi-functional slot assembly performs post-processing on the product basket that is clamped and fed into it; S5: The robotic arm clamping assembly clamps and delivers the finished product basket to the first feeding conveyor assembly or the second feeding conveyor assembly for unloading.

[0021] Based on the above, the beneficial effects of step S1 are that it enables the two product baskets to enter their respective corrosion tanks at staggered times, so that the start times of the corrosion operations on both sides are staggered, establishing a time basis for subsequent alternating corrosion and sequential entry into the multi-functional tank, and avoiding competition for the same post-processing tank position when the products on both sides have not completed their post-processing; the beneficial effects of step S2 are that it enables the two product baskets to undergo synchronous processing of different corrosion process routes in parallel on the same production line, without waiting for or interfering with each other, while also meeting the flexible configuration requirements of acidic and alkaline corrosion conditions in the same batch; the beneficial effects of step S3 are that it achieves seamless connection between the corrosion-completed products and the post-processing process, and the products are immediately transferred after being taken out of the corrosion tank. The product is moved to a sealed, multi-functional tank to prevent it from being suspended and exposed in the air, effectively ensuring the surface cleanliness and processing quality during the product transfer process. The beneficial effect of step S4 is that it integrates the post-processing functions of more than ten dispersed tanks in the traditional production line into a single tank for sequential completion, which greatly reduces the handling path and number of transfers of the product after corrosion and before drying and unloading, while keeping the time occupied by the post-processing stage short and highly controllable. The beneficial effect of step S5 is that it realizes a complete closed loop of product flow from corrosion, post-processing to unloading, allowing the completed product to leave the processing area in a timely manner, freeing up space for the feeding and conveying components to receive the next batch of products to be processed, and ensuring the continuous operation of the production line.

[0022] Furthermore, in step S5, the multifunctional tank assembly performs post-processing on the product basket clamped therein, including a spray cleaning process, a pure water spray process, an ultrasonic rinsing process, a hot water slow pulling process, and a hot air drying process. When the product in the product basket undergoes alkaline corrosion processing, the post-processing also includes a hot water spray process and a weak acid neutralization spray process before the pure water spray process.

[0023] Based on the above, the beneficial effects of the spray cleaning process are as follows: Firstly, the spray method provides initial rinsing of the corroded product surface, quickly removing a large amount of residual corrosive liquid from the product surface and basket, preventing high-concentration acid or alkali solutions from being carried into the subsequent pure water spray tank and causing cross-contamination, while also shortening the overall post-processing time. Second, the pure water spray process uses high-purity water to thoroughly rinse the product, effectively replacing and removing residual chemicals from the product surface and micropores to below the allowable residual amount, ensuring product surface cleanliness and providing a low-ion-concentration wet base for subsequent drying. Third, the ultrasonic rinsing process applies ultrasonic vibration during rinsing, forcibly stripping and dispersing residual chemicals, reaction products, and particles deep within the product's micropores and surface gaps into the rinsing solution through cavitation, improving the thoroughness of cleaning the microstructure. Fourth, the hot water slow-pull process slowly lifts and holds the product in hot water for a certain period, utilizing the final warm bath of the product with hot water while simultaneously applying surface tension during the slow-pull process to... A water film flows evenly down the product surface, reducing surface water droplets before drying, lowering subsequent drying energy consumption, and preventing water stains. The hot air drying process blows heated clean hot air onto the product surface, thoroughly drying the product and basket until no liquid water remains, bringing the product to a dry state ready for direct unloading and packaging, completing the final processing stage of the entire production line. The hot water spraying process rinses the product with hot water after alkaline corrosion, quickly removing high-temperature concentrated alkali solution adhering to the product surface and raising the product's temperature, providing a thermal transition for the subsequent weak acid neutralization process, avoiding damage to the glass product from thermal shock, and reducing the amount of concentrated alkali solution carried into the subsequent neutralization solution. The weak acid neutralization spraying process uses a low-concentration acidic solution to neutralize the alkaline-corroded product, converting residual alkaline substances on the product surface and in the micropores into neutral salts through an acid-base reaction, which are then carried away with the spray solution, preventing alkaline residues from crystallizing or continuing to corrode the product surface during subsequent pure water spraying and drying.

[0024] Furthermore, in step S3, the corrosion processing mode of the first corrosion tank assembly and the second corrosion tank assembly is selected from any one of acid-acid combination, alkali-alkali combination, or acid-alkali combination; during the corrosion processing, the shaking drive device intermittently drives the U-shaped frame to move up and down reciprocally, and at the same time, gas is input into the bubbling liquid replenishment integrated structure through the input pipe. The gas is bubbled out from each of the bubbling holes through each of the bubbling channels, forming bubbles in the tank body of the corrosion tank.

[0025] Based on the above, the beneficial effects of the acid-acid combination are that both the first and second corrosion tank components operate on acidic corrosion processes, enabling the simultaneous parallel processing of two batches of products in two channels within the same production line. This ensures that the corrosion durations on both sides are similar, facilitating the timing planning of cycle synchronization and alternating entry into the multi-functional tank. The beneficial effects of the alkali-alkali combination are that both the first and second corrosion tank components operate on alkaline corrosion processes, enabling the parallel operation of two product baskets undergoing long-cycle alkaline corrosion simultaneously. Since the alkaline corrosion duration is significantly longer than the post-processing duration, the adjustment margin for the feeding interval is further widened, increasing the probability that the completion times of the products on both sides will naturally be staggered. The beneficial effects of the acid-alkali combination are that the first and second corrosion tank components operate on acidic and alkaline corrosion processes independently, respectively, enabling the parallel processing of two different corrosion solution routes within the same production line. This meets the direct comparison requirements of acidic and alkaline corrosion effects in R&D trials or small-batch, multi-variety scenarios, eliminating the need for separate batch operation and significantly improving process development efficiency.

[0026] To make the above features of the present invention and the objectives to be achieved clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0027] Figure 1 : This is a perspective view of the present invention; Figure 2 : This is a schematic diagram of the internal components of the present invention; Figure 3 : This is a schematic diagram of the first corrosion tank assembly of the present invention; Figure 4 : This is a schematic diagram of the U-shaped frame of the present invention; Figure 5 : This is a schematic diagram of the integrated bubbling and fluid replenishment structure of the present invention; Figure 6 : This is a schematic diagram from another perspective of the integrated bubbling and fluid replenishment structure of the present invention; Figure 7 : This is a schematic diagram of the bottom surface of the bubbling motherboard of the present invention; Figure 8 :for Figure 7 An enlarged schematic diagram of part A; Figure 9 : This is a schematic diagram of the groove sealing cover assembly of the present invention; Figure 10 : This is a flowchart of the present invention.

[0028] Reference numerals: 1-Frame, 2-Three-tank assembly, 21-First corrosion tank assembly, 22-Multi-functional tank assembly, 23-Second corrosion tank assembly, 24-Inner tank of corrosion tank, 25-Integrated bubble replenishment structure, 251-Bubble main board, 2511-Bubble receiving tank, 2512-Liquid input area, 2512a-Liquid input port, 2513-Bubble area, 2514-Elongated boss, 2515-Bubble flow channel, 2516-Bubble hole. 252-Bubbling base plate, 253-Input pipe, 26-U-shaped frame, 27-Shaking drive device, 28-Serpentine coil, 29-Sampling box body, 3-Loading and unloading device, 31-First loading and conveying assembly, 32-Second loading and conveying assembly, 33-Robotic arm clamping assembly, 4-Trench sealing cover assembly, 41-Direct drive mechanism, 42-Sealing door, 43-Guide structure, 44-Sealing cover pressing mechanism, 441-Pressing cylinder, 442-Pressing block. Detailed Implementation

[0029] See Figures 1-10 As shown, In this embodiment, the present invention discloses a grouped integrated acid-base etching production line with balanced processing cycle time, including a frame 1 and a three-tank device 2 and a loading / unloading device 3 mounted on the frame 1. The three-tank device 2 includes a first etching tank assembly 21, a second etching tank assembly 23, and a multi-functional tank assembly 22 located between the first etching tank assembly 21 and the second etching tank assembly 23. The loading / unloading device 3 includes a first loading conveyor assembly 31 corresponding to the first etching tank assembly 21, a second loading conveyor assembly 32 corresponding to the second etching tank assembly 23, and a robotic arm clamping assembly 33 disposed between the first loading conveyor assembly 31 and the second loading conveyor assembly 32. The robotic arm clamping assembly 33 is used to clamp the product baskets on the first feeding conveyor assembly 31 or the second feeding conveyor assembly 32 to the first corrosion tank assembly 21 or the second corrosion tank assembly 23 for corrosion operation, and to clamp the product baskets after corrosion operation to the multi-functional tank assembly 22 for post-processing. The clamping timing of the robotic arm clamping assembly 33 is configured such that the product baskets that have completed corrosion processing in the first corrosion tank assembly 21 and the second corrosion tank assembly 23 alternately enter the multi-functional tank assembly 22, and the time difference between the completion of corrosion processing in the first corrosion tank assembly 21 and the second corrosion tank assembly 23 is not less than the time required for a single post-processing in the multi-functional tank assembly 22.

[0030] In this embodiment, the first feeding conveyor assembly 31 and the second feeding conveyor assembly 32 independently receive product baskets containing products supplied from the outside. The robotic arm clamping assembly 33 is centrally arranged between the first feeding conveyor assembly 31 and the second feeding conveyor assembly 32, and is used to pick up and put down product baskets from both sides respectively. The external liquid supply system of the multi-functional tank assembly 22 includes a hot water supply pipeline, a cold water supply pipeline and a weak acid circulation pipeline, which are used to supply the process media required for different post-processing steps into the multi-functional tank assembly 22. A hot air device is provided above the multi-functional tank assembly 22. The hot air device is connected to the internal space of the multi-functional tank assembly 22 through an air duct, and is used to blow heated clean gas into the multi-functional tank assembly 22.

[0031] In this embodiment, the first corrosion tank assembly 21 and the second corrosion tank assembly 23 are each independently connected to an acid replenishment pipeline, an alkali replenishment pipeline, and a water replenishment pipeline, which are used to replenish acidic solution, alkaline solution, and pure water into the corrosion tank to maintain the process concentration and liquid level of the corrosion solution. The first corrosion tank assembly 21 and the second corrosion tank assembly 23 are also connected to a CDS acid supply system and a CDU alkali supply system, respectively. The CDS acid supply system is used to centrally supply acidic corrosion solution, and the CDU alkali supply system is used to centrally supply alkaline corrosion solution. When the production line is configured to run the alkaline corrosion process, the CDS acid supply system is disconnected, and only the CDU alkali supply system is kept running.

[0032] In this embodiment, the corrosion processing time of the first corrosion tank assembly 21 and the second corrosion tank assembly 23 is configured as follows: the acid corrosion processing time is 2 to 4 hours, the alkaline corrosion processing time is 17 to 18 hours, and the time required for a single post-processing of the multi-functional tank assembly 22 is 50 to 65 minutes. Taking the first corrosion tank assembly 21 being loaded first and the second corrosion tank assembly 23 being loaded later as an example, the time required for a single corrosion processing of the first corrosion tank assembly 21 is defined as T_1, the time required for a single corrosion processing of the second corrosion tank assembly 23 is defined as T_2, the time required for a single post-processing of the multi-functional tank assembly 22 is defined as t, and the time difference between two adjacent loadings is ΔT. Then ΔT satisfies: ΔT≥t+max(0,T_1-T_2), so that the time difference between the completion of corrosion processing of the first corrosion tank assembly 21 and the second corrosion tank assembly 23 is not less than t. When T_1 and T_2 are close, for example, |T_1-T_2| is not greater than t, or |T_1-T_2| is not greater than 30 minutes, ΔT is set to be not less than t, for example, 50 minutes to 1.5 hours; when T_1 and T_2 differ significantly, ΔT is configured according to the above formula. For example, when the first corrosion tank assembly 21 undergoes alkaline corrosion for 18 hours, the second corrosion tank assembly 23 undergoes acidic corrosion for 3 hours, and t is 1 hour, ΔT is not less than 1+(18-3)=16 hours.

[0033] In this embodiment, the first corrosion tank assembly 21 and the second corrosion tank assembly 23 each independently receive the product basket and perform corrosion processing. After the two corrosion tank assemblies complete the corrosion processing, the robotic arm clamping assembly 33 clamps the corresponding product basket to the multi-functional tank assembly 22 for post-processing. At most, only one product basket occupies the multi-functional tank assembly 22 at any given time. The first loading conveyor assembly 31 and the second loading conveyor assembly 32 are respectively used to receive and output the finished product basket.

[0034] In this embodiment, the first corrosion tank assembly 21 and / or the second corrosion tank assembly 23 include an inner corrosion tank body 24, an integrated bubbling and replenishing structure 25, a U-shaped frame 26, and a vibration drive device 27. The integrated bubbling and replenishing structure 25 is disposed at the bottom of the inner corrosion tank body 24. The U-shaped frame 26 is mounted inside the inner corrosion tank body 24 and is used to support the product basket. The vibration drive device 27 is disposed outside the inner corrosion tank body 24, and the U-shaped frame 26 is connected to the output end of the vibration drive device 27.

[0035] In this embodiment, a sealing ring is provided on the upper edge of the inner tank 24 of the corrosion tank, which is used to form a sealing contact with the lower surface of the sealing door 42 when the tank sealing cover assembly 4 is closed; the upper ends of both sides of the U-shaped frame 26 are respectively provided with external extension structures; the shaking drive device 27 consists of two shaking cylinders, which are respectively provided on the outer sides of the inner tank 24 of the corrosion tank. The output ends of the two shaking cylinders are respectively connected to the corresponding external extension structures. During the corrosion process, the shaking cylinders intermittently drive the U-shaped frame 26 and the product basket to shake up and down, which is used to shake off the glass powder that is corroded and loosened in the glass through holes during the corrosion process.

[0036] In this embodiment, the main body of the bubbling and replenishing integrated structure 25 is made of high-nickel alloy, which is used to withstand high temperature, strong acid and strong alkali corrosion environment. The bubbling and replenishing integrated structure 25 realizes four functions at the same time through a single component: replenishing liquid, replenishing water, circulating backflow and bubbling generation, so as to reduce the number of openings at the bottom and side wall of the tank body 24 in the corrosion tank.

[0037] In this embodiment, the integrated bubble filling structure 25 includes a bubble main board 251, a bubble base plate 252, and an input pipe 253. The bottom of the bubble main board 251 is provided with a bubble receiving groove 2511, which includes a liquid input area 2512 and a bubble area 2513. The liquid input area 2512 is located at one end of the bubble receiving groove 2511, and the bubble area 2513 is located in the remaining area of ​​the bubble receiving groove 2511. The bubble area 2513 is provided with multiple elongated protrusions 2514, each elongated protrusion 2514 extending from the liquid input area 2512 towards the other end of the bubble receiving groove 2511. The multiple elongated protrusions 2514 are arranged sequentially at intervals in a direction perpendicular to the extending direction. The elongated protrusions 2514 are spaced apart from each other and from each other at the edges. Multiple independent bubbling channels 2515 are formed between the elongated protrusions 2514 and the wall of the bubbling receiving groove 2511. Each bubbling channel 2515 has multiple bubbling holes 2516 that penetrate the main bubbling plate 251 at intervals along its own extension direction. The liquid input area 2512 is provided with a liquid input port 2512a. One end of the input pipe 253 is connected to the liquid input port 2512a, and the other end of the input pipe 253 is used to connect to an external gas-liquid supply system. The bubbling base plate 252 is provided at the bottom of the main bubbling plate 251. Each elongated protrusion 2514 is fixedly connected to the bubbling base plate 252 and seals the bubbling receiving groove 2511. The cross-sectional area of ​​each bubbling channel 2515 is greater than the sum of the areas of each bubbling hole 2516 in each bubbling channel 2515.

[0038] In this embodiment, the external gas-liquid supply system selectively supplies replenishing liquid, water, circulating liquid, or compressed air to the integrated bubbling and replenishing structure 25 through the input pipe 253. The replenishing, water, circulation, and bubbling functions operate independently and sequentially according to the process sequence requirements, and are not performed simultaneously. The liquid inlet 2512a of the integrated bubbling and replenishing structure 25 is uniquely configured as a single interface. The replenishing, water, circulation, and bubbling gas are all input through the single interface via the input pipe 253, so that only one through interface needs to be opened at the bottom of the corrosion tank 24. Compared with the structure where replenishing, water, circulation, and bubbling each have their own independent interfaces, the number of interfaces is reduced by 75%.

[0039] In this embodiment, when replenishing liquid, water, or circulating, the liquid is pre-mixed to the required ratio and temperature in an external mixing pipeline before entering the input pipe 253. It is then transported through the input pipe 253 to the liquid inlet 2512a, flows into the liquid input area 2512 for initial diffusion and deceleration, and is then distributed to each of the bubbling channels 2515. Finally, it flows out through each of the bubbling holes 2516 into the inner tank 24 of the corrosion tank. During bubbling, compressed gas enters the liquid input area 2512 through the input pipe 253 and the liquid inlet 2512a, and is then distributed to each of the bubbling channels 2515. It is then bubbled out through each of the bubbling holes 2516 to form a bubble cluster. The number of bubbles is adjusted by controlling the opening and closing of the external gas valve.

[0040] In this embodiment, the cross-sectional area of ​​each bubbling channel 2515 is greater than the sum of the areas of each bubbling hole 2516 within the bubbling channel 2515, so that the fluid entering the bubbling channel 2515 forms a back pressure within the channel, and the static pressure in front of each bubbling hole 2516 is equal, thereby ensuring that the bubble rate and bubble size of each bubbling hole 2516 are consistent, forming a uniform and stable bubbling area at the bottom of the tank 24 in the corrosion tank, and avoiding the glass through hole from being impacted into an elliptical shape due to uneven local impact force.

[0041] In this embodiment, the first corrosion tank assembly 21 and / or the second corrosion tank assembly 23 further include a serpentine coil 28 and a sampling box 29. The serpentine coil 28 is disposed in the inner tank 24 of the corrosion tank. The serpentine coil 28 is three-dimensionally serpentine and is arranged to meander along the inner rear wall, inner bottom wall and inner front wall of the inner tank 24 in sequence. The two ends of the serpentine coil 28 are respectively used to connect to the chilled water supply pipeline. The sampling box 29 is disposed on the outer wall of the inner tank 24 of the corrosion tank, and the interior of the sampling box 29 is in communication with the internal liquid of the inner tank 24 of the corrosion tank.

[0042] In this embodiment, the serpentine coil 28 is arranged in a three-dimensional serpentine shape within the corrosion tank 24, meandering along the inner rear wall, inner bottom wall, and inner front wall of the corrosion tank 24. Both ends of the serpentine coil 28 are connected to chilled water supply pipes. During the drainage stage after the corrosion operation is completed, chilled water is introduced into the serpentine coil 28 through the chilled water supply pipes. The serpentine coil 28 exchanges heat with the high-temperature corrosive liquid in the corrosion tank 24 through its pipe wall, reducing the temperature of the high-temperature corrosive liquid from 130 degrees Celsius to a safe temperature range before drainage. This prevents the high-temperature corrosive liquid from causing accelerated corrosion of the metal recovery pipe or thermal softening and dissolution of the PP material recovery pipe due to overheating when flowing through the recovery pipe.

[0043] In this embodiment, the sampling box 29 is used for operators to place several test pieces simultaneously with the product when the corrosion process is started, and to take out a test piece from the sampling box 29 at preset time intervals during the corrosion process to observe the corrosion effect, thereby achieving real-time monitoring of the corrosion progress without opening the sealing cover of the inner tank 24 of the corrosion tank and without interrupting the corrosion process.

[0044] In this embodiment, the upper part of the frame 1 is provided with three tank sealing cover assemblies 4 corresponding to the first corrosion tank assembly 21, the multifunctional tank assembly 22, and the second corrosion tank assembly 23, respectively. Each tank sealing cover assembly 4 includes a direct drive mechanism 41 mounted on the frame 1 and a sealing door 42 disposed at the output end of the direct drive mechanism 41. Guide structures 43 are respectively provided on both sides of the upper surfaces of the first corrosion tank assembly 21, the multifunctional tank assembly 22, and the second corrosion tank assembly 23. The two sides of 42 are guided to the guide structure 43. The upper two sides of the first corrosion tank assembly 21, the multi-functional tank assembly 22 and the second corrosion tank assembly 23 are respectively provided with sealing cover pressing mechanism 44. The sealing cover pressing mechanism 44 includes a pressing cylinder 441 and a pressing block 442 provided at the output end of the pressing cylinder 441. When the sealing door 42 is driven to the upper surface of the corresponding tank, the pressing cylinder 441 drives the pressing block 442 to press on the upper surface of the sealing door 42.

[0045] In this embodiment, the sealing ring is disposed on the edge of the upper surface of each groove. The sealing door 42 moves linearly along the guide structure 43 under the drive of the direct drive mechanism 41. When it moves to directly above the upper surface of the corresponding groove, the lower surface of the sealing door 42 contacts the sealing ring. The pressing cylinder 441 drives the pressing block 442 to move downward and press on both sides of the upper surface of the sealing door 42, applying a supplementary pressing force in the vertical direction to strengthen the contact seal between the sealing door 42 and the sealing ring. Each groove sealing cover assembly 4 opens and closes independently and does not interfere with each other.

[0046] In this embodiment, the first corrosion tank assembly 21 and / or the second corrosion tank assembly 23 further include a heating system, a circulating filtration structure, an ultrasonic generator, a liquid level sensor, and a concentration sensor. The heating system and the ultrasonic generator are disposed inside the inner tank 24 of the corrosion tank. The input end of the circulating filtration structure is connected to the upper middle part of the inner tank 24 of the corrosion tank, and the output end of the circulating filtration structure is connected to the input pipe 253.

[0047] In this embodiment, the heating system is used to heat and maintain the corrosion solution in the corrosion tank 24 at the required process temperature; in the alkaline corrosion process, the temperature of the corrosion solution is maintained at 130 degrees Celsius. The liquid level sensor is used to monitor the liquid level in the corrosion tank 24 in real time. When the liquid level drops due to high-temperature evaporation, the water replenishment pipeline is triggered to supply pure water to the input pipeline 253 to replenish the liquid level. The concentration sensor is used to detect the concentration of effective acid or effective alkali in the corrosion solution in real time. When the concentration deviates from the process setting range due to water evaporation or reaction consumption, the acid replenishment pipeline or alkali replenishment pipeline is triggered to supply acidic reagent to the input pipeline 253. The concentration is maintained by liquid or alkaline solution; the ultrasonic generator applies ultrasonic vibration to the tank body 24 inside the corrosion tank during the corrosion process, which is used to loosen the glass powder loosened by corrosion in the glass through holes and disperse it in the corrosion liquid through cavitation effect; the input end of the circulating filter structure draws corrosion liquid containing suspended impurities from the middle and upper part of the tank body 24 inside the corrosion tank, filters it through the circulating filter structure and sends it back to the input pipe 253 from its output end, and then flows back to the tank body 24 inside the corrosion tank through the bubble replenishment structure 25, which is used to continuously remove glass powder and reaction precipitates in the corrosion liquid during the corrosion process.

[0048] In this embodiment, the present invention discloses a grouped integrated acid-base corrosion method for processing cycle equalization, comprising the following steps: S1: The robotic arm clamping assembly 33 clamps the first product basket carrying the product from the first feeding conveying assembly 31 to the first corrosion tank assembly 21. After a time interval of feeding time difference ΔT, the robotic arm clamping assembly 33 then clamps the second product basket carrying the product from the second feeding conveying assembly 32 to the second corrosion tank assembly 23. S2: The first corrosion tank assembly 21 performs corrosion processing on the products in the first product basket, and the second corrosion tank assembly 23 performs corrosion processing on the products in the second product basket. The first corrosion tank assembly 21 and the second corrosion tank assembly 23 each independently select acid corrosion or alkaline corrosion. S3: After the products in the first product basket have completed the etching process, the robotic arm clamping assembly 33 clamps the product basket from the first etching tank assembly 21 to the multi-functional tank assembly 22; after the products in the second product basket have completed the etching process, the robotic arm clamping assembly 33 clamps the product basket from the second etching tank assembly 23 to the multi-functional tank assembly 22. S4: The multi-functional slot assembly 22 performs post-processing on the product basket that is clamped and fed into it; S5: The robotic arm clamping assembly 33 clamps and delivers the finished product basket to the first feeding conveying assembly 31 or the second feeding conveying assembly 32 for unloading.

[0049] In this embodiment, a pretreatment step is included before step S1: the product basket is first clamped and sent to the multi-functional tank assembly 22 for cleaning solution spraying for 5 to 10 minutes, the cleaning solution is recovered, and then pure water is sprayed for 5 to 10 minutes. The pure water is discharged to the external waste liquid treatment system. After the pretreatment is completed, the product basket enters the corrosion processing in step S1. In step S1, when one side of the first corrosion tank assembly 21 and the second corrosion tank assembly 23 is in an idle state while the other side is undergoing corrosion processing, the robotic arm clamping assembly 33 can clamp and send the new product basket on the idle side loading station to the corrosion tank assembly on the idle side to start a new corrosion processing without waiting for the corrosion processing on the other side to be completed.

[0050] In this embodiment, in step S5, the multifunctional tank assembly 22 performs post-processing on the product basket clamped therein, including a spray cleaning process, a pure water spray process, an ultrasonic rinsing process, a hot water slow pulling process, and a hot air drying process. When the product in the product basket undergoes alkaline corrosion processing, the post-processing further includes a hot water spray process and a weak acid neutralization spray process before the pure water spray process.

[0051] In this embodiment, the cleaning solution spraying process lasts 5 to 10 minutes, and the sprayed solution is recycled. The pure water spraying process lasts 5 to 10 minutes, and the rinsed pure water is discharged to an external wastewater treatment system. The hot water spraying process is used to rinse the product after alkaline corrosion, and the sprayed hot water is discharged to an external wastewater treatment system. The weak acid neutralization spraying process lasts 3 minutes, and the sprayed weak acid solution is recycled. The pure water spraying process lasts 5 minutes, and the sprayed pure water is discharged to an external wastewater treatment system. The ultrasonic rinsing process includes three independent ultrasonic rinsing processes, lasting a total of 30 minutes, and the liquid after each ultrasonic rinsing is discharged to an external wastewater treatment system. The hot water slow-pull process lasts 5 to 8 minutes, and the hot water is discharged to an external wastewater treatment system after completion. The hot air drying process lasts 3 to 5 minutes. The total duration of the above post-treatment processes is approximately 50 to 65 minutes.

[0052] In this embodiment, in step S3, the corrosion processing mode of the first corrosion tank assembly 21 and the second corrosion tank assembly 23 is selected from any one of acid-acid combination, alkali-alkali combination or acid-alkali combination; during the corrosion processing, the shaking drive device 27 drives the U-shaped frame 26 to move up and down reciprocally at intervals, and at the same time, gas is input into the bubbling liquid replenishment integrated structure 25 through the input pipe 253. The gas is bubbled out from each of the bubbling holes 2516 through each of the bubbling flow channels 2515, forming bubbles in the tank body 24 of the corrosion tank.

[0053] In this embodiment, when an alkali-alkali combination is used, the corrosion processing time of both corrosion tank components is 17 to 18 hours, which is significantly longer than the acid corrosion processing time. The probability that the corrosion completion times of the two corrosion tank components will be staggered is further increased, and the probability that the multifunctional tank component 22 will be simultaneously competed for by products on both sides is reduced. When the production line is configured to use alkaline corrosion processing, the CDS acid supply system is shut down, and only the CDU alkali supply system is kept running to reduce equipment complexity and maintenance costs.

[0054] The above description is merely the optimal embodiment of the present invention and is not intended to limit the present invention. Any modifications or substitutions made by those skilled in the art without departing from the essence and scope of protection of the present invention should also be within the scope of protection of the present invention.

Claims

1. A group-integrated acid-base corrosion production line for processing cycle time equalization, characterized in that, The system includes a frame (1) and a three-slot device (2) and a loading / unloading device (3) mounted on the frame (1). The three-slot device (2) includes a first corrosion tank assembly (21), a second corrosion tank assembly (23), and a multi-functional tank assembly (22) located between the first corrosion tank assembly (21) and the second corrosion tank assembly (23). The loading / unloading device (3) includes a first loading conveyor assembly (31) corresponding to the first corrosion tank assembly (21), a second loading conveyor assembly (32) corresponding to the second corrosion tank assembly (23), and a robotic arm clamping assembly (33) located between the first loading conveyor assembly (31) and the second loading conveyor assembly (32). The robotic arm clamping assembly (33) is used to clamp and deliver the product baskets on the first loading conveyor assembly (31) or the second loading conveyor assembly (32) to the first corrosion tank assembly (21) or the second corrosion tank assembly (23) for corrosion operation, and to clamp and deliver the product baskets after corrosion operation to the multi-functional tank assembly (22) for post-processing. The clamping timing of the robotic arm clamping assembly (33) is configured such that the product baskets that have completed corrosion processing in the first corrosion tank assembly (21) and the second corrosion tank assembly (23) alternately enter the multi-functional tank assembly (22), and the difference between the time when the first corrosion tank assembly (21) and the second corrosion tank assembly (23) complete corrosion processing is not less than the time required for a single post-processing of the multi-functional tank assembly (22).

2. The group-integrated acid-base corrosion production line with balanced processing cycle as described in claim 1, characterized in that, The time required for a single corrosion process of the first corrosion tank assembly (21) is defined as T_1, the time required for a single corrosion process of the second corrosion tank assembly (23) is defined as T_2, the time required for a single post-processing of the multi-functional tank assembly (22) is defined as t, the time difference between two adjacent feedings is defined as ΔT, and the first corrosion tank assembly (21) is fed before the second corrosion tank assembly (23). Then the time difference ΔT satisfies: ΔT≥t+max(0,T_1-T_2), so that the time difference between the first corrosion tank assembly (21) and the second corrosion tank assembly (23) completing the corrosion process is not less than t.

3. The group-integrated acid-base corrosion production line with balanced processing cycle as described in claim 1, characterized in that, The first corrosion tank assembly (21) and / or the second corrosion tank assembly (23) include an inner corrosion tank body (24), an integrated bubble replenishment structure (25), a U-shaped frame (26), and a vibration drive device (27). The integrated bubble replenishment structure (25) is located at the bottom of the inner corrosion tank body (24). The U-shaped frame (26) is mounted inside the inner corrosion tank body (24) to support the product basket. The vibration drive device (27) is located outside the inner corrosion tank body (24). The U-shaped frame (26) is connected to the output end of the vibration drive device (27).

4. The group-integrated acid-base corrosion production line with balanced processing cycle time as described in claim 3, characterized in that, The integrated bubbling and replenishment structure (25) includes a bubbling main board (251), a bubbling base plate (252), and an input pipe (253). The bottom of the bubbling main board (251) is provided with a bubbling receiving groove (2511). The bubbling receiving groove (2511) includes a liquid input area (2512) and a bubbling area (2513). The liquid input area (2512) is located at one end of the bubbling receiving groove (2511), and the bubbling area (2513) is located at the bottom of the bubbling receiving groove (2511). The remaining area of ​​the bubble-receiving groove (2511) is provided with a plurality of elongated protrusions (2514). Each of the elongated protrusions (2514) extends from the liquid input area (2512) toward the other end of the bubble-receiving groove (2511). The plurality of elongated protrusions (2514) are arranged sequentially at intervals in a direction perpendicular to the extension direction. The elongated protrusions (2514) are spaced apart from each other and at the edges. Multiple independent bubbling channels (2515) are formed between the boss (2514) and the wall of the bubbling receiving groove (2511). Each bubbling channel (2515) has multiple bubbling holes (2516) that penetrate the main bubbling plate (251) at intervals along its own extension direction. The liquid input area (2512) is provided with a liquid input port (2512a). One end of the input pipe (253) is connected to the liquid input port (2512a). The other end of the input pipe (253) is used to connect to an external gas-liquid supply system. The bubbling base plate (252) is set at the bottom of the bubbling main plate (251). Each of the elongated protrusions (2514) is fixedly connected to the bubbling base plate (252) and seals the bubbling receiving groove (2511). The cross-sectional area of ​​each bubbling channel (2515) is greater than the sum of the areas of each bubbling hole (2516) in each bubbling channel (2515).

5. The group-integrated acid-base corrosion production line with balanced processing cycle time as described in claim 3, characterized in that, The first corrosion tank assembly (21) and / or the second corrosion tank assembly (23) further include a serpentine coil (28) and a sampling box (29). The serpentine coil (28) is disposed in the inner tank (24) of the corrosion tank. The serpentine coil (28) is three-dimensionally serpentine and is arranged in a meandering manner along the inner rear wall, inner bottom wall and inner front wall of the inner tank (24). The two ends of the serpentine coil (28) are respectively used to connect to the chilled water supply pipeline. The sampling box (29) is disposed on the outer wall of the inner tank (24) of the corrosion tank. The interior of the sampling box (29) is in communication with the internal liquid of the inner tank (24) of the corrosion tank.

6. The group-integrated acid-base corrosion production line with balanced processing cycle as described in claim 1, characterized in that, The upper part of the frame (1) is provided with three tank sealing cover assemblies (4) corresponding to the first corrosion tank assembly (21), the multi-functional tank assembly (22), and the second corrosion tank assembly (23), respectively. The tank sealing cover assembly (4) includes a direct drive mechanism (41) mounted on the frame (1) and a sealing door (42) located at the output end of the direct drive mechanism (41). Guide structures (43) are respectively provided on both sides of the upper surface of the first corrosion tank assembly (21), the multi-functional tank assembly (22), and the second corrosion tank assembly (23). The sealing door (42) The two sides of the first corrosion tank assembly (21), the multi-functional tank assembly (22) and the second corrosion tank assembly (23) are respectively provided with sealing cover pressing mechanism (44). The sealing cover pressing mechanism (44) includes a pressing cylinder (441) and a pressing block (442) provided at the output end of the pressing cylinder (441). When the sealing door (42) is driven to the upper surface of the corresponding tank, the pressing cylinder (441) drives the pressing block (442) to press on the upper surface of the sealing door (42).

7. The group-integrated acid-base corrosion production line with balanced processing cycle time as described in claim 3, characterized in that, The first corrosion tank assembly (21) and / or the second corrosion tank assembly (23) further include a heating system, a circulating filter structure, an ultrasonic generator, a liquid level sensor and a concentration sensor. The heating system and the ultrasonic generator are disposed inside the inner tank (24) of the corrosion tank. The input end of the circulating filter structure is connected to the upper middle part of the inner tank (24) of the corrosion tank, and the output end of the circulating filter structure is connected to the input pipe (253).

8. A group-integrated acid-base corrosion process for processing cycle time equalization, applied to a group-integrated acid-base corrosion production line for processing cycle time equalization as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1: The robotic arm clamping assembly (33) clamps the first product basket carrying the product from the first feeding conveying assembly (31) to the first corrosion tank assembly (21). After a time interval of feeding time difference ΔT, the robotic arm clamping assembly (33) clamps the second product basket carrying the product from the second feeding conveying assembly (32) to the second corrosion tank assembly (23). S2: The first corrosion tank assembly (21) performs corrosion processing on the products in the first product basket, and the second corrosion tank assembly (23) performs corrosion processing on the products in the second product basket. The first corrosion tank assembly (21) and the second corrosion tank assembly (23) independently select acid corrosion or alkaline corrosion. S3: After the products in the first product basket have completed the etching process, the robotic arm clamping assembly (33) clamps the product basket from the first etching tank assembly (21) to the multifunctional tank assembly (22); after the products in the second product basket have completed the etching process, the robotic arm clamping assembly (33) clamps the product basket from the second etching tank assembly (23) to the multifunctional tank assembly (22); S4: The multi-functional slot assembly (22) performs post-processing on the product basket that is clamped and fed into it; S5: The robotic arm clamping assembly (33) clamps and delivers the finished product basket to the first loading conveyor assembly (31) or the second loading conveyor assembly (32) for unloading.

9. The group-integrated acid-base corrosion treatment method with equalized processing cycle time as described in claim 8, characterized in that, In step S5, the multifunctional tank assembly (22) performs post-processing on the product basket that is clamped therein, including a spray cleaning process, a pure water spray process, an ultrasonic rinsing process, a hot water slow pulling process, and a hot air drying process. When the product in the product basket undergoes alkaline corrosion processing, the post-processing also includes a hot water spray process and a weak acid neutralization spray process before the pure water spray process.

10. The group-integrated acid-base corrosion method for processing cycle equalization according to claim 8, characterized in that, In step S3, the corrosion processing mode of the first corrosion tank assembly (21) and the second corrosion tank assembly (23) is selected from any one of acid-acid combination, alkali-alkali combination or acid-alkali combination; during the corrosion processing, the shaking drive device (27) drives the U-shaped frame (26) to move up and down reciprocally at intervals, and at the same time, gas is input into the bubble replenishment integrated structure (25) through the input pipe (253). The gas is bulged out from each of the bubble flow channels (2515) and bubbled in the tank body (24) of the corrosion tank.

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