Stepping continuous surface treatment production device and method

Abstract

The invention discloses a stepping continuous surface treatment production device and method. The stepping continuous surface treatment production device comprises a rack, a feeding conveying system, an ultrasonic system, a spraying system, a cleaning screen frame, a cleaning system, a plurality of sets of screen frame transfer systems, a plurality of sets of in-groove translation conveying systems, an automatic drying system, a drying conveying system and a discharging table. The feeding conveying system is installed at the feeding end of a production line, and the cleaning screen frames are placed on a conveying chain and used for loading magnets to be treated, ascend, move and descend among stations through the multiple sets of screen frame transfer systems and translate in the ultrasonic system and the cleaning system through the in-groove translation system. And the returning system is used for returning the cleaning screen frame to a feeding position at the front end of the production device after the position of the discharging table is processed and the magnet is poured out. The whole equipment operation process is high in intelligence and automation degree, manual operation is not needed, automatic transfer can be achieved, compared with manual operation, the working efficiency is improved by 300% or above, the product edge-knocking breakage rate is reduced by 90%, and the working efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of material surface treatment, and specifically relates to a step-by-step continuous surface treatment production device and method, and in particular to a surface treatment production device for NdFeB permanent magnet materials. Background Art

[0002] NdFeB permanent magnet materials have rapidly entered the industrialized society with excellent magnetic properties, price ratio and abundant resource reserves. In recent years, the market demand and industrial scale of NdFeB permanent magnet materials are developing rapidly. Its application fields cover many industries such as new energy vehicles, wind power generation, energy-saving elevators, energy-saving home appliances, automation, smart consumer electronics, etc. The magnets in different industries have different shapes, including square, tile, cylinder, strip, bread, special shape, etc., and the sizes also vary greatly. For a long time, the development of an automatic system that can meet the surface treatment of magnets of different shapes and sizes has been a key issue in the field of NdFeB permanent magnets.

[0003] At present, the most widely used NdFeB surface treatment processes are mainly roll plating and rack plating. The roll plating surface treatment system is suitable for products that are not easy to mount and are small in size, but the roll plating surface treatment method requires the product to be taken out in the middle, and it is impossible to achieve full automated production. In addition, the magnets are easy to bump during the roll plating process, and are very easy to knock the edges and mount, resulting in a low pass rate. The rack plating surface treatment system is suitable for products with regular shapes and large sizes, but the rack plating surface treatment method requires customized different tooling for products of different sizes. The tooling needs to be replaced when the product is switched, which makes it difficult to achieve automatic loading and unloading. The cost of manual loading is extremely high and the efficiency is low. In the mesh belt surface treatment line, the product does not move relative to the mesh belt, which is easy to produce mesh belt marks and poor appearance.

[0004] Therefore, developing an automatic system that can meet the surface treatment of magnets of different shapes and sizes has become a hot topic. Summary of the invention

[0005] The present invention aims to provide a step-by-step continuous surface treatment production device and a production method, which are suitable for surface treatment of workpieces of various sizes and shapes.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a step-by-step continuous surface treatment production device is provided, the production device comprises a frame, a cleaning screen frame, a plurality of screen frame transfer systems and a feeding and conveying system from front to back, an ultrasonic system, a spray system, a cleaning system, a plurality of in-tank translation conveying systems, an automatic drying system, a drying conveying system and a discharge table, which are sequentially installed on the frame; the feeding and conveying system is installed at the feeding end of the production line, the cleaning screen frame is placed on the conveying chain, and is used to load the magnets to be processed, and is lifted, moved and lowered between each workstation by the plurality of screen frame transfer systems, and is translated in the ultrasonic system and the cleaning system by the in-tank translation system; the return system is used to return the cleaning screen frame to the front feeding position of the production device after the NdFeB magnets are poured out after processing at the discharge table.

[0007] The order and quantity of the ultrasonic system, the spray system and the cleaning system can be adjusted or increased or decreased according to different processes. The step-by-step continuous surface treatment production device of the present invention is suitable for continuous surface treatment of permanent magnetic materials, especially continuous surface treatment of NdFeB permanent magnetic materials.

[0008] In one embodiment of the present invention, the cleaning screen frame includes a limit pin, a material placement screen surface and a screen frame transfer rod.

[0009] In one embodiment of the present invention, the screen frame transfer system includes a travel motor, a driving shaft, a travel rack, a linear slide rail, a lifting cylinder, an upper sensor, a lower sensor, a lifting arm, a screen frame pickup hook and an automatic control system; the travel rack is fixed on the frame, the screen frame pickup hook is fixed on the lifting arm, the lifting arm drives the lifting arm to move up and down on the linear slide rail through its upper end lifting cylinder, and the upper and lower stop positions are respectively identified by the upper sensor and the lower sensor, wherein the travel motor drives the travel driving shaft and the travel rack to engage, thereby driving other hardware parts in the screen frame transfer system except the travel rack to move synchronously. Among them, the automatic control system automatically controls the movement of the travel motor and the lifting cylinder according to production needs.

[0010] In one embodiment of the present invention, multiple groups of network frame transfer systems are respectively installed at the upper end of the connection between the feeding and conveying system and the ultrasonic degreasing tank, the upper end of the connection between the ultrasonic degreasing tank and the spray water washing tank, the upper end of the connection between the spray water washing tank and the ultrasonic surface conditioning tank, the upper end of the connection between the ultrasonic surface conditioning tank and the ultrasonic water washing tank, the upper end of the connection between the ultrasonic water washing tank and the main cleaning tank, the upper end of the connection between the main cleaning tank and the ultrasonic water washing tank, the upper end of the connection between the ultrasonic water washing tank and the hot water washing tank, and the upper end of the connection between the hot water washing tank and the drying and conveying system.

[0011] In one embodiment of the present invention, an in-tank translational conveying system is installed on the left side of the bottom of the ultrasonic degreasing tank, ultrasonic surface conditioning tank, ultrasonic water washing tank and main cleaning tank, and the multiple groups of in-tank translational conveying systems have the same installation method and action mechanism.

[0012] In one embodiment of the present invention, the translation conveying system includes a transmission motor, a coupling, a coupling bearing, a driving gear, a driving chain, a translation driving shaft, a translation chain, a chain limiting column, a chain vibrator, and a tensioning module; the tensioning module is installed at the driven shaft end to achieve the tension adjustment of the translation chain; the transmission motor and the coupling bearing are installed at the groove edge of the non-operating surface of the groove body, the transmission motor is connected to the coupling, the coupling is connected to the driving gear, and the driving gear is connected to the driving shaft by the driving chain, so that the transmission motor controls the operation of the translation chain, and the movement distance of the translation chain is controlled by the automatic system, using a stepping movement mode, and the single movement distance is greater than the width of the cleaning screen frame. When the translation chain is running, the chain vibrator is started, and the movement distance of the translation chain is controlled by the automatic system.

[0013] In one embodiment of the present invention, the feeding and conveying system includes a conveying motor, a driving shaft, a driven shaft, a conveying chain, and a stepping sensor; the feeding and conveying system is installed at the feeding end of the production line, and the cleaning screen frame is placed on the conveying chain (also called "on-line"), and the conveying motor is automatically started according to the signal of the automatic control system. The conveying motor is connected to the driving shaft. When the conveying motor starts, it drives the conveying chain and the driven shaft to rotate, thereby conveying the cleaning screen frame.

[0014] In one embodiment of the present invention, the stepping sensor is installed at the end of the feeding conveying system and the proximal end of the driving shaft; when the stepping sensor senses the limit plate of the conveying chain, the conveying motor is controlled to stop, and the cleaning screen frame can be accurately stopped at the screen frame transfer position of the feeding conveying system through the sensing of the stepping sensor. The spacing between the limit plates of the conveying chain is greater than the width of the cleaning screen frame, so that the feeding conveying system can transport the cleaning screen frame at a fixed spacing.

[0015] When the cleaning screen frame stops at the end of the feeding and conveying system, the screen frame transfer system is started by the automatic program to control the travel motor, the travel motor is connected to the travel driving shaft, the travel driving shaft cooperates with the travel rack to control the movement of the lifting arm, and after the lifting arm moves to the screen frame transfer position of the feeding and conveying system, the screen frame picking hook hooks the cleaning screen frame, and further, the lifting cylinder moves to the upper sensor, the automatic system controls the travel motor to start, the lifting arm moves to the ultrasonic degreasing tank screen frame falling position, the lifting arm moves to the lower sensor, and the cleaning screen frame is placed in the ultrasonic degreasing tank in the translation conveying system screen frame transfer position, realizing the cleaning screen frame from the feeding and conveying system to the ultrasonic degreasing tank in the translation conveying system screen frame transfer.

[0016] Among them, the in-tank translation conveying system, the transmission motor and the coupling bearing are installed on the non-operating surface of the tank body. The transmission motor is connected to the coupling, the coupling is connected to the driving gear, and the driving gear is connected to the translation driving shaft by the driving chain, so that the transmission motor controls the translation chain to run. The translation chain movement distance is controlled by the automatic system, and the stepping movement method is adopted. The single movement distance is greater than the width of the cleaning frame. The ultrasonic degreasing tank, ultrasonic surface adjustment tank, ultrasonic water washing tank and main cleaning tank are all equipped with in-tank translation conveying systems. The translation conveying systems in each tank act synchronously to realize the transfer of the cleaning frame according to the unified beat of the entire line.

[0017] The multiple groups of screen frame transfer systems move synchronously, and the action mechanism is consistent with the transfer action of the screen frame from the feeding and conveying system to the ultrasonic degreasing tank in-tank translation system.

[0018] In one embodiment of the present invention, the ultrasonic system includes an ultrasonic generator, an ultrasonic vibration plate, an ultrasonic degreasing tank, an ultrasonic auxiliary tank, an ultrasonic circulation filtration device, an ultrasonic heating device, an automatic adding device, a high liquid level sensor, and a low liquid level sensor; the ultrasonic vibration plate is installed in the ultrasonic cleaning tank, at least two of them, respectively installed at the bottom and liquid level of the ultrasonic cleaning tank, for realizing ultrasonic cleaning of the net frame in the ultrasonic cleaning tank from above and below. When the translation system in the tank drives the cleaning net frame to pass through the middle of the ultrasonic vibration plates located at the upper and lower ends, the upper and lower ultrasonic cleaning of the net frame in the ultrasonic degreasing tank is realized; the ultrasonic auxiliary tank is located on the side of the ultrasonic degreasing tank, connected by an ultrasonic circulation filtration device, for circulating filtration of the medium in the ultrasonic degreasing tank. There are at least two ultrasonic heating devices, respectively installed in the ultrasonic cleaning tank and the ultrasonic auxiliary tank, and configured to heat the medium.

[0019] In one embodiment of the present invention, the high liquid level sensor is located below the liquid level on the side of the ultrasonic degreasing tank body, and is configured to protect the ultrasonic vibration plate at the liquid level position of the ultrasonic degreasing tank; the low liquid level sensor is installed at the bottom of the ultrasonic degreasing tank body, and is configured to protect the circulating filtration pump and the ultrasonic heating device.

[0020] In one embodiment of the present invention, the ultrasonic circulation filtration device comprises a circulation filtration pump.

[0021] In one embodiment of the present invention, the cleaning system includes a main cleaning tank, an auxiliary cleaning tank, a cleaning circulation filter device, an automatic tank adding device, and a cleaning heating device; the auxiliary cleaning tank is installed on the side of the main cleaning tank and is connected through a cleaning circulation filter device; the cleaning circulation filter device is equipped with a mixed flow nozzle and is installed at the bottom of the main cleaning tank to ensure sufficient circulation of the medium in the main cleaning tank.

[0022] In one embodiment of the present invention, the spray system includes a spray auxiliary tank, a spray water washing tank, a spray pump, a spray heating device, an automatic water replenishment device, an upper spray pipe, a lower spray pipe, a flow meter and a spray recovery tank; the upper spray pipe and the lower spray pipe are respectively installed at the upper end and the lower end of the spray water washing tank, the upper spray pipe sprays downward, and the lower spray pipe sprays upward. The spray water washing tank can use the spray function to spray the product, and can also use the immersion function to immerse and wash the product.

[0023] In one embodiment of the present invention, a spray heating device is installed in the spray auxiliary tank to heat the spray medium; a spray pump is installed in the spray auxiliary tank to supply liquid to the spray pipe; an automatic water replenishing device is installed in the spray auxiliary tank to automatically replenish water to the spray auxiliary tank; the spray recovery tank (126) is installed below the lower spray pipe to recover the spray liquid.

[0024] In one embodiment of the present invention, the drying system includes a drying tank, an adjustable air knife, a vibration device, a high-pressure hot air device, and a frequency conversion controller; the adjustable air knife is installed on the side of the drying tank and is respectively installed on the upper and lower ends of the drying conveying chain of the drying conveying system; the adjustable air knife at the upper end of the drying conveying chain blows air toward the lower end of the conveying chain, and the adjustable air knife at the lower end of the drying conveying chain blows air toward the upper end of the conveying chain;

[0025] Preferably, the vibration device is installed on the conveying chain of the translation conveying system in the ultrasonic degreasing tank, the ultrasonic surface conditioning tank, the ultrasonic water washing tank and the main cleaning tank and on the drying conveying chain of the drying conveying system, and the frequency conversion controller controls the vibration frequency of the vibration device to vibrate the screen frame in the ultrasonic degreasing tank, the ultrasonic surface conditioning tank, the ultrasonic water washing tank, the main cleaning tank and the drying tank;

[0026] In one embodiment of the present invention, the high-pressure hot air device is connected to an adjustable air knife, and the frequency conversion controller controls the frequency of the high-pressure hot air device to control the outlet temperature and pressure of the adjustable air knife.

[0027] In one embodiment of the present invention, the automatic drying tunnel includes a circulating fan, a heater, a stainless steel wind wheel, a circulating air duct, a temperature sensor, a heat-insulating shell, a fresh air inlet, a fresh air filter and a moisture removal port; the circulating fan is installed on the outside of the heat-insulating shell, the heater is installed inside the heat-insulating shell, the stainless steel wind wheel is installed inside the heat-insulating shell, and the stainless steel wind wheel is connected to the circulating fan to provide hot air for the circulating air duct, and the fresh air inlet is used to provide fresh air for the automatic drying tunnel.

[0028] Preferably, the moisture exhaust port is used to exhaust moist air from the automatic drying tunnel.

[0029] Preferably, the return system is an automatic return system, including a screen frame conveyor belt, a start sensor and an end sensor. When an empty screen frame is placed on the screen frame conveyor belt, the start sensor senses the screen frame and starts the screen frame conveyor belt. After the end sensor senses the cleaning screen frame, the screen frame conveyor belt stops.

[0030] Preferably, the unloading platform is located at the end of the drying conveying system, and is used to receive the screen frame leaving the production line (also called "off-line").

[0031] Preferably, the production device is also equipped with an electronic control device and an integrated automatic control system.

[0032] Preferably, the production device is also equipped with visual doors and windows and an integrated exhaust system. The visual doors and windows are used to observe the status inside the tank and facilitate maintenance; the integrated exhaust system is used for exhausting air inside the production line.

[0033] Preferably, slots for spraying, ultrasonic cleaning, surface conditioning (surface conditioning), water washing, surface treatment, etc. are also provided between the feeding and conveying system and the drying system, or the number and / or order of the slots are adjusted.

[0034] Those skilled in the art should understand that the "production device" in the context of the present invention may also be referred to as a "production line", and these two terms should be understood to have the same meaning when describing a device.

[0035] The present invention also provides a production method using a step-by-step continuous surface treatment production device, comprising the steps of loading, blowing, drying and unloading.

[0036] Specifically, the production method includes: laying the NdFeB magnets to be processed flat on a cleaning screen frame, lifting the cleaning screen frame from each independent workstation through a screen frame transfer system and transferring it to the next workstation and then putting it down, transporting the cleaning screen frame in an ultrasonic tank and a main cleaning tank (phosphating) through an in-tank translation conveying system, and according to the above-mentioned cleaning screen frame conveying method, the cleaning screen frame loaded with the laid NdFeB magnets to be processed is sequentially subjected to ultrasonic system degreasing, spraying, surface conditioning or activation, ultrasonic cleaning, phosphating, at least one ultrasonic water washing, drying and cooling steps.

[0037] The present invention does not particularly limit the steps between loading and drying, for example, it may include one or more of the steps of ultrasonic degreasing, spraying, surface conditioning (surface conditioning, or activation), ultrasonic cleaning, surface treatment (such as phosphating), water washing, and ultrasonic water washing.

[0038] The present invention can adjust and change the steps between the material loading and the drying process according to production needs. As an example, the number of slots for spraying, ultrasonic cleaning, surface conditioning (surface conditioning or activation), water washing, surface treatment, etc. can be adjusted (increased or decreased) between the material loading step and the drying step, and the order of the slots can also be adjusted.

[0039] In one embodiment of the present invention, the degreasing time is 60 to 500 s, preferably 100 to 200 s, for example 120 s; each spraying time is 5 to 60 s, preferably 10 to 15 s; the surface conditioning time is 10 to 500 s, preferably 15 to 200 s, more preferably 20 to 120 s; the ultrasonic cleaning time is 60 to 500 s, preferably 100 to 200 s, for example 120 s.

[0040] The present invention also provides an application of the above-mentioned step-by-step continuous surface treatment production device in the surface treatment of permanent magnetic materials, especially in the surface treatment of neodymium iron boron permanent magnetic materials.

[0041] Beneficial effects of the present invention:

[0042] 1) The surface treatment production device provided by the present invention is suitable for NdFeB workpieces of different sizes and shapes, and solves the drawbacks caused by traditional roll plating, rack plating, and mesh belt cleaning methods. It improves the problems of easy bumps and edges in roll plating, large number of people required for rack plating, non-universal tooling, high cost, and appearance of mesh belt cleaning. The entire equipment operation process is highly intelligent and automated, does not require manual operation, and can be automatically transferred, which significantly improves work efficiency. Compared with manual operation, work efficiency is increased by more than 300%, and the product edge bump and damage rate is reduced by 90%.

[0043] 2) In the traditional mesh belt method, there is no relative movement of products on the mesh belt during conveying, and the contact position of the product with the mesh belt remains unchanged, which is easy to produce marks. Compared with the conventional mesh belt method in the industry, the present invention adopts a conveying method that combines a lifting trolley and chain conveying. It not only has the advantages of stability, space saving and great process flexibility, but also has corresponding vibrations during chain conveying. When the product vibrates in the mesh frame, it produces relative movement, and the contact position of the product with the mesh frame changes, which is not easy to produce marks, and can solve the problem of product appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 The main view of the structural assembly of the step-by-step continuous production device provided in Example 1 Figure 1 ;

[0045] Figure 2 The main view of the structural assembly of the step-by-step continuous production device provided in Example 1 Figure 2 ;

[0046] Figure 3 A top view of the structural assembly of the step-by-step continuous production device provided in Example 1 Figure 1 ;

[0047] Figure 4 A top view of the structural assembly of the step-by-step continuous production device provided in Example 1 Figure 2;

[0048] Figure 5 A side view of the structural assembly of the step-by-step continuous production device provided in Example 1;

[0049] Figure 6 A schematic diagram of the cleaning screen frame structure of the step-by-step continuous production device provided in Example 1;

[0050] Reference numerals: 101-frame; 103-ultrasonic circulation filter device; 104-cleaning circulation filter device; 108-unloading platform; 111-ultrasonic degreasing tank; 112-cleaning main tank; 113-ultrasonic auxiliary tank; 114-spray auxiliary tank; 115-spray water washing tank; 116-ultrasonic surface adjustment tank; 117-ultrasonic water washing tank; 118-hot water washing tank; 123-drying tank; 126-spray recovery tank; 132-cleaning auxiliary tank; 341-tank automatic adding device; 151-circulating air duct; 152-insulation shell; 161-installation base; 170-integrated exhaust system; 180-electric control cabinet; 190-visible doors and windows; 20 1-travel motor, 210-travel driving shaft, 230-travel gear rail, 240-linear slide rail, 241-lifting cylinder, 601-upper sensor, 602-lower sensor, 260-lifting arm, 270-net frame picking hook; 203-transmission motor, 211-coupling, 212-coupling bearing, 213-driving gear, 214-driving chain, 215-translation driving shaft, 231-translation chain, 232-chain limit column, 204-chain vibrator, 233-tensioning module; 205-conveying motor, 216-driving shaft, 217-driven shaft, 234-conveying chain, 610-stepping sensor;

[0051] 314-vibration device; 331-automatic adding device; 336-spray pump; 347-high-pressure hot air device; 358-circulating fan; 401-upper spray pipe; 402-lower spray pipe; 415-mixed flow nozzle; 435-adjustable wind knife; 440-drying conveying chain; 446-stainless steel wind wheel; 447-fresh air outlet; 448-damp outlet; 501-ultrasonic generator; 502-ultrasonic vibration plate; 503-spray heating device; 504-ultrasonic heating device; 505-cleaning heating device; 522-heater; 603-high liquid level sensor; 614-low liquid level sensor; 625-end sensor; 626-start sensor; 637-temperature sensor; 701-cleaning screen frame; 702-limit pin; 703-material placement screen surface; 704-screen frame transfer rod; 810-screen frame conveyor belt. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be emphasized that the specific embodiments described herein are only used to better illustrate the present invention, are some embodiments of the present invention, not all embodiments, and are not used to limit the present invention. In addition, the technical features involved in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0053] In the context of the present invention, unless otherwise expressly specified or defined, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or it can be integrally formed; it can be a mechanical connection or an electrical connection; it can be directly connected or connected through a medium. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood within the scope of the art according to specific circumstances.

[0054] The conditions for the wet heat test in the following examples are: the test is carried out at a constant temperature and humidity of 85° C. and 85% humidity, and observation is made every 15 minutes to record the time when rust appears.

[0055] Example 1

[0056] Reference Figure 1 and Figure 5 As shown, the screen frame step-by-step continuous surface treatment production device includes: a frame 101, a mounting base 161, a cleaning screen frame 701, multiple screen frame transfer systems, multiple slot translation conveying systems, a feeding conveying system, an ultrasonic system, a spray system, a cleaning main slot 112, a blow-drying system, an automatic drying tunnel, a drying conveying system, a material unloading platform 108 and a return system. The screen frame transfer system includes a travel motor 201, a driving shaft 210, a travel rack rail 230, a linear slide rail 240, a lifting cylinder 241, an upper sensor 601, a lower sensor 602, a lifting arm 260, a screen frame picking hook 270 and an automatic control system. The translation conveying system includes a transmission motor 203 , a coupling 211 , a coupling bearing 212 , a driving gear 213 , a driving chain 214 , a translation driving shaft 215 , a translation chain 231 , a chain limiting column 232 , a chain vibrator 204 , and a tensioning module 233 .

[0057] Reference Figure 1 and Figure 2, multiple groups of network frame transfer systems are respectively installed at the upper end of the connection between the feeding and conveying system and the ultrasonic degreasing tank 111, the upper end of the connection between the ultrasonic degreasing tank 111 and the spray water washing tank 115, the upper end of the connection between the spray water washing tank 115 and the ultrasonic surface conditioning tank 116, the upper end of the connection between the ultrasonic surface conditioning tank 116 and the ultrasonic water washing tank 117, the upper end of the connection between the ultrasonic water washing tank 117 and the main cleaning tank 112, the upper end of the connection between the main cleaning tank 112 and the ultrasonic water washing tank 117, the upper end of the connection between the ultrasonic water washing tank 117 and the hot water washing tank 118, and the upper end of the connection between the hot water washing tank 118 and the drying and conveying system.

[0058] The feeding and conveying system is installed at the feeding end of the production line, and the cleaning screen frame (701) is placed on the conveying chain (234) for loading the NdFeB magnets to be processed, and is lifted, moved and lowered between various workstations through multiple sets of screen frame transfer systems, and is translated in the ultrasonic degreasing tank, ultrasonic surface adjustment tank, ultrasonic water washing tank and main cleaning tank through the tank translation system;

[0059] Comprehensive reference Figure 1 and Figure 3 The feeding conveying system is installed at the feeding end of the production line, and the feeding conveying system includes: a conveying motor 205, a driving shaft 216, a driven shaft 217, a conveying chain 234 and a stepping sensor 610. Figure 6 As shown, the cleaning screen frame 701 includes a limiting pin 702, a material placement screen surface 703 and a screen frame transfer rod 704.

[0060] The cleaning screen frame 701 is placed on the conveying chain 234 (also called "on-line"), and the conveying motor 205 is automatically started according to the automatic control system signal. The conveying motor 205 is connected to the driving shaft 216. The conveying motor 205 is started, driving the conveying chain 234 and the driven shaft 217 to rotate, thereby conveying the cleaning screen frame.

[0061] Among them, the stepper sensor 610 is installed at the end of the feeding conveying system and the proximal end of the driving shaft 216. When the stepper sensor 610 senses the limit plate of the conveying chain 234, the conveying motor 205 is controlled to stop. Through the sensing of the stepper sensor 610, the cleaning screen frame 701 can be accurately stopped at the screen frame transfer position of the feeding conveying system.

[0062] The spacing between the limit plates of the conveying chain 234 is greater than the width of the cleaning screen frame 701. Through the control of the automatic system, the cleaning screen frame can be conveyed at a set rhythm and fixed spacing.

[0063] Reference Figure 2 and Figure 5After the cleaning screen frame 701 stops at the end of the feeding conveying system, the screen frame transfer system is started by the automatic program control walking motor 201, the walking motor 201 is connected with the trolley driving shaft 210, the trolley driving shaft 210 cooperates with the walking rack 230 to control the movement of the lifting arm 260, and after the lifting arm 260 moves to the screen frame transfer position of the feeding conveying system, the screen frame picking hook 270 hooks the cleaning screen frame 701, further, the lifting cylinder 241 moves to the upper sensor 601, the automatic system controls the walking motor 201 to start, the lifting arm 260 moves to the screen frame lowering position of the ultrasonic degreasing tank 111, the lifting arm 260 moves to the lower sensor 602, and the cleaning screen frame 701 is placed in the screen frame transfer position of the translation conveying system in the ultrasonic degreasing tank 111, realizing the screen frame transfer of the cleaning screen frame 701 from the feeding conveying system to the screen frame of the translation conveying system in the ultrasonic degreasing tank 111.

[0064] Reference Figure 1 and Figure 2 , each group of screen frame transfer systems moves synchronously, and the action mechanism is consistent with the transfer action of the screen frame from the feeding conveying system to the ultrasonic degreasing tank 111 tank translation system, and the screen frames of each tank are stepped and transferred to the next tank position synchronously.

[0065] refer to Figure 1 , Figure 3 and Figure 5 The bottom of the ultrasonic degreasing tank 111, the ultrasonic surface adjustment tank 116, the ultrasonic washing tank 117 and the main cleaning tank 112 are equipped with a tank translation conveying system. The transmission motor 203 and the coupling bearing 212 are installed on the non-operating surface of the tank body. The transmission motor 203 is connected with the coupling 211, and the coupling 211 is connected with the driving gear 213. The driving gear 213 is connected with the translation driving shaft 215 by the driving chain 214, so that the transmission motor 203 controls the operation of the translation chain 231. The moving distance of the translation chain 231 is controlled by the automatic system, and the stepping moving mode is adopted. The single moving distance is greater than the width of the cleaning frame. The translation conveying systems in each tank act synchronously to realize the transfer of the cleaning frame 701 according to the uniform beat of the whole line.

[0066] refer to Figure 3 and Figure 4 When the translation chain 231 is running, the chain vibrator 204 is started to move the material in the cleaning frame 701. Figure 2 The tensioning module 233 is installed at the end of the driven shaft 217 to achieve tensioning adjustment of the translation chain 231.

[0067] Reference Figure 1 and Figure 3The ultrasonic system includes an ultrasonic generator 501, an ultrasonic vibration plate 502, an ultrasonic degreasing tank 111, an ultrasonic auxiliary tank 113, an ultrasonic circulation filtering device 103, an ultrasonic heating device 504, an automatic adding device 331, a high liquid level sensor 603, and a low liquid level sensor 614. The ultrasonic vibration plate 502, the high liquid level sensor 603, and the low liquid level sensor 614 are installed and used in the ultrasonic degreasing tank 111, the ultrasonic surface adjustment tank 116, and the ultrasonic water washing tank 117 in the same manner.

[0068] The ultrasonic vibration plate 502 is installed in the ultrasonic degreasing tank 111. For example, the ultrasonic vibration plate 502 is installed at the bottom of the ultrasonic degreasing tank 111 and the liquid level of the ultrasonic degreasing tank 111 respectively. The translation system in the tank drives the cleaning screen frame 701 to pass through the middle of the upper and lower ultrasonic vibration plates 502 to achieve the upper and lower ultrasonic cleaning of the screen frame 701 in the ultrasonic degreasing tank 111. The high liquid level sensor 603 is located below the liquid level on the side of the tank body, and is used to protect the ultrasonic vibration plate 502 at the liquid level of the ultrasonic degreasing tank 111.

[0069] Reference Figure 3 and Figure 4 The ultrasonic auxiliary tank 113 is located on the side of the ultrasonic degreasing tank 111 and is connected to the ultrasonic circulation filtration device 103. The ultrasonic circulation filtration device 103 is used to circulate and filter the medium in the ultrasonic cleaning tank 111. The ultrasonic heating device 504 is installed in the ultrasonic cleaning tank 111 and the ultrasonic auxiliary tank 113 respectively, and is used to heat the medium. The low liquid level sensor 614 is installed at the bottom of the tank body to protect the circulation filtration pump 325 and the ultrasonic heating device 504.

[0070] Reference Figure 1-Figure 4 The ultrasonic surface conditioning tank 116 , the ultrasonic water washing tank 117 and the main cleaning tank 112 all adopt the ultrasonic method of the ultrasonic degreasing tank 111 and the conveying method of cleaning the screen frame 701 .

[0071] The cleaning system includes a main cleaning tank 112, an auxiliary cleaning tank 132, a circulation filter device 104, an automatic tank adding device 341, and a cleaning heating device 505. The auxiliary cleaning tank 132 is installed on the side of the main cleaning tank 112 and is connected by the circulation filter device 104, wherein the circulation filter device 104 is equipped with a mixed flow nozzle 415, which is installed at the bottom of the main cleaning tank 112 to fully circulate the medium in the main cleaning tank 112.

[0072] Reference Figure 1The spray system includes a spray auxiliary tank 114, a spray pump 336, a spray heating device 503, an upper spray pipe 401, a lower spray pipe 402, a flow meter, and a spray recovery tank 126. The upper spray pipe 401 and the lower spray pipe 402 are respectively installed at the upper end and the lower end of the spray water washing tank 115. The upper spray pipe 401 sprays downwards, and the lower spray pipe 402 sprays upwards. The automatic control system moves according to the screen frame transfer system transferring the cleaning screen frame 701 to the spray water washing tank 115, and controls the opening and closing of the spray.

[0073] Reference Figure 3 The spray heating device 503 is installed in the spray auxiliary tank 114 to heat the spray medium. The spray pump 336 is installed in the spray auxiliary tank 114 to supply liquid to the spray pipe. The automatic water replenishing device 515 is installed in the spray auxiliary tank 114 to automatically replenish water to the spray auxiliary tank 114.

[0074] Among them, the spray recovery tank 126 is installed below the lower spray pipe to recover the spray liquid.

[0075] Reference Figure 2 The drying system includes a drying tank 123, an adjustable air knife 435, a vibration device 314, a high-pressure hot air device 347, and a frequency conversion controller. The adjustable air knife 435 is installed at the upper end of the drying tank 123, and the adjustable air knife 435 is installed at the upper end and the lower end of the drying conveying chain 440 of the drying conveying system, respectively, so that the adjustable air knife 435 at the upper end of the drying conveying chain 440 blows air downward, and the adjustable air knife 435 at the lower end of the drying conveying chain 440 blows air upward.

[0076] Reference Figure 4 The vibration device 314 is installed on the chain guide rail of the drying tank 123, and the frequency conversion controller controls the vibration frequency of the vibration device to vibrate the inner net frame of the drying tank 123.

[0077] Reference Figure 4 The high-pressure hot air device 345 is connected to the adjustable wind knife 435, and the frequency conversion controller controls the frequency of the high-pressure hot air device to achieve adjustable wind knife 435 outlet temperature and pressure according to process requirements.

[0078] Reference Figure 2 and Figure 4 The automatic drying tunnel includes a circulating fan 358, a heater 522, a stainless steel wind wheel 446, a circulating air duct 151, a temperature sensor 637, a heat preservation shell 152, a fresh air outlet 447, and a moisture removal outlet 448. The circulating fan 358 is installed on the outside of the heat preservation shell 152, the heater 522 is installed inside the heat preservation shell 152, and the stainless steel wind wheel 446 is installed inside the heat preservation shell 152 and connected to the circulating fan 358 to provide hot air for the circulating air duct 151.

[0079] Reference Figure 2 and Figure 4 The fresh air inlet 447 is used to provide fresh air for the automatic drying tunnel, and the dehumidification outlet 448 is used to discharge the humid air for the automatic drying tunnel. The unloading platform 108 is located at the end (discharging end) of the production device and is used for the screen frame to be unloaded.

[0080] The return system includes a screen frame conveyor belt 810, a start sensor 626 and an end sensor 625. When the empty cleaning screen frame 701 is placed on the screen frame conveyor belt 810 after unloading from the production line, the start sensor 626 senses the cleaning screen frame 701, the screen frame conveyor belt 810 starts, and the screen frame is returned to the loading end of the equipment. After the end sensor 625 of the screen frame conveyor belt 810 senses the cleaning screen frame 701, the screen frame conveyor belt 810 stops, realizing the screen frame return.

[0081] Reference Figure 4-5 The production device is equipped with an integrated exhaust system 170, an electric control cabinet 180 and a visual door and window 190. The electric control cabinet 180 is used to integrate the automatic control system, and the visual door and window 190 is used to observe the state in the tank and facilitate maintenance. The integrated exhaust 170 is used to exhaust air in the visual door and window 190.

[0082] Example 2

[0083] Using the production device of Example 1, NdFeB magnets (size: 25mm-25mm-5mm) were selected for the following surface treatment, and the process was as follows:

[0084] 1) At the loading station, spread the product flat on the material placement mesh and place it on the production device.

[0085] 2) The product undergoes ultrasonic degreasing (120s), spraying (15s), surface conditioning (120s), and ultrasonic cleaning (120s) in sequence; then it quickly enters the main cleaning tank (phosphating tank) (200s) until it is completely immersed in the phosphating tank;

[0086] 3) After phosphating, quickly exit the phosphating tank and enter ultrasonic water washing and water washing; after ultrasonic water washing, the NdFeB magnet is quickly blown dry (180s) and dried (900s).

[0087] 4) After drying, the product is cooled in a cooling device. After the alarm is sounded, the cleaning screen frame is removed from the production device, and the product is poured out to obtain product M1.

[0088] Comparative Example 1

[0089] Using the production device of Example 1, take the same NdFeB magnet (size: 25mm-25mm-5mm) as in Example 2 and perform surface treatment:

[0090] 1) Place the product in a specific container and carry it manually through ultrasonic degreasing (120s), water washing (20s), surface conditioning (40s), phosphating (200s), water washing (20s), ultrasonic water washing (120s), and hot water washing (15s).

[0091] 2) After washing with hot water, spread the product on a phosphating cloth and blow dry the product with a hair dryer; spread the product flat in an oven and dry it (20 minutes); take the product out of the oven and cool it naturally to obtain product M2.

[0092] Table 1. Performance test of products M1 and M2

[0093] product Damp heat Production efficiency per piece Pass rate M1 90min 0.15s 99％ M2 60min 0.55s 95％

[0094] Example 3

[0095] The production device of Example 1 was used, and NdFeB magnets (size: 30mm-18mm-5mm) were used to perform the following surface treatment:

[0096] 1) At the loading station, lay the product flat on the material placement mesh and place it on the production device;

[0097] 2) The product undergoes ultrasonic degreasing (60s), spraying (15s), surface conditioning (20s), spraying (15s), and ultrasonic cleaning (60s) in sequence; then it quickly enters the phosphating tank (60s) until it is completely immersed in the phosphating tank.

[0098] 3) After phosphating, quickly exit the phosphating tank and enter water washing and ultrasonic water washing; after ultrasonic water washing, the NdFeB magnet is quickly blown dry (90s) and dried (600s).

[0099] 4) After drying, cool it in a cooling device, and after the alarm is sounded, remove the cleaning screen frame from the production device, pour out the product, and obtain product M3.

[0100] Comparative Example 2

[0101] Using the production device of Example 1, take the same NdFeB magnet (size: 30mm-18mm-5mm) as in Example 3, and carry out the following surface treatment scheme:

[0102] 1) Place the product in a specific container; carry the product manually and go through ultrasonic degreasing (60s), water washing (20s), activation (15s), surface conditioning (40s), phosphating (60s), water washing (20s), ultrasonic water washing (120s), and hot water washing (15s) in sequence.

[0103] 2) After washing with hot water, spread the product on a phosphating cloth and blow dry the product with a hair dryer; spread the product flat in an oven and dry it (20 minutes); take the product out of the oven and cool it naturally to obtain product M4.

[0104] Table 2. Performance test of products M3 and M4

[0105] product Damp heat Production efficiency per piece Pass rate M3 60min 0.12s 99％ M4 30min 0.3s 97％

[0106] By comparing the experimental data results of Example 2 with Comparative Example 1, and Example 3 with Comparative Example 2, it can be seen that the step-by-step continuous surface treatment production device and process of the present invention, compared with the conventional manual phosphating process, not only improves the moisture and heat resistance time of the product, but also increases the production efficiency of the single-piece product by more than 2 times, and also improves the product qualification rate.

[0107] The process flow of the present invention generally includes "loading - ultrasonic degreasing - spraying - surface adjustment (surface adjustment or activation) - ultrasonic cleaning - surface treatment - ultrasonic water washing - ultrasonic - blow drying - drying - unloading", wherein, from loading to blow drying, the specific process flow of the present invention may not be limited. Those skilled in the art may, based on the technical solution of the present invention, configure different production lines according to different process flows.

[0108] The experimental results of Example 2 and Example 3 can also confirm that different processes are used for products of different sizes and different coating requirements. For example, after the spraying process is added again in Example 3, the production device can still be efficiently used for the surface treatment and production of NdFeB workpieces.

[0109] The above is only a preferred application implementation of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A step-by-step continuous surface treatment production device, characterized in that: The production device comprises a frame (101), a feeding and conveying system, an ultrasonic system, a spraying system, a cleaning screen frame, a cleaning system, multiple screen frame transfer systems, multiple slot translation conveying systems, an automatic drying system, a drying and conveying system and a material unloading platform (108); The feeding conveying system is installed at the feeding end of the production line, and the cleaning screen frame (701) is placed on the conveying chain (234) for loading the magnets to be processed. The cleaning screen frame is lifted, moved and lowered between the stations through multiple sets of screen frame transfer systems, and is translated in the ultrasonic system and the cleaning system through the in-tank translation system. The return system is used to pour out the NdFeB magnets after the position processing of the unloading platform (108), clean the screen frame (701) and return it to the front loading position of the production device.

2. The step-by-step continuous surface treatment production device according to claim 1, characterized in that: The cleaning screen frame (701) comprises a limit pin (702), a material placement screen surface (703) and a screen frame transfer rod (704); The screen frame transfer system comprises a travel motor (201), a travel driving shaft (210), a travel rack rail (230), a linear slide rail (240), a lifting cylinder (241), an upper sensor (601), a lower sensor (602), a lifting arm (260), a screen frame picking hook (270) and an automatic control system; The travel rack (230) is fixed on the frame (101), the screen frame picking hook (270) is fixed on the lifting arm (260), and the lifting arm (260) drives the lifting arm (260) to move up and down on the linear slide rail (240) through the upper end lifting cylinder (241), and the upper and lower stop positions are respectively identified by the upper sensor (601) and the lower sensor (602), wherein the travel motor (201) drives the travel driving shaft (210) and the travel rack (230) to engage, thereby driving other hardware parts in the screen frame transfer system except the travel rack (230) to move synchronously. The automatic control system automatically controls the movement of the travel motor (201) and the lifting cylinder (241) according to production needs. Preferably, multiple groups of network frame transfer systems are respectively installed at the upper end of the connection between the feeding conveying system and the ultrasonic degreasing tank (111), the upper end of the connection between the ultrasonic degreasing tank (111) and the spray water washing tank (115), the upper end of the connection between the spray water washing tank (115) and the ultrasonic surface conditioning tank (116), the upper end of the connection between the ultrasonic surface conditioning tank (116) and the ultrasonic water washing tank (117), the upper end of the connection between the ultrasonic water washing tank (117) and the main cleaning tank (112), the upper end of the connection between the main cleaning tank (112) and the ultrasonic water washing tank (117), the upper end of the connection between the ultrasonic water washing tank (117) and the hot water washing tank (118), and the upper end of the connection between the hot water washing tank (118) and the drying conveying system.

3. The step-by-step continuous surface treatment production device according to claim 1, characterized in that: The translation conveying system comprises a transmission motor (203), a coupling (211), a coupling bearing (212), a driving gear (213), a driving chain (214), a translation driving shaft (215), a translation chain (231), a chain limiting column (232), a chain vibrator (204), and a tensioning module (233); the transmission motor (203) and the coupling bearing (212) are installed on the non-operating surface of the slot body, and the transmission motor (203) and the coupling (211) are connected to each other. 1), the coupling (211) is connected to the driving gear (213), and the driving gear (213) is connected to the driving shaft (216) through the driving chain (214), so that the transmission motor (203) controls the operation of the translation chain (231), when the translation chain (231) is running, the chain vibrator (204) is started, and the moving distance of the translation chain (231) is controlled by the automatic system; the tensioning module (233) is installed at the driven shaft end to realize the tensioning adjustment of the translation chain.

4. The step-by-step continuous surface treatment production device according to claim 1, characterized in that: The feeding and conveying system comprises a conveying motor (205), a driving shaft (216), a driven shaft (217), a conveying chain (234), and a stepping sensor (610); The cleaning screen frame (701) is placed on the conveying chain (234), and the conveying motor (205) is automatically started according to the automatic control system signal. The conveying motor (205) is connected to the driving shaft (216). When the conveying motor (205) is started, it drives the conveying chain (234) and the driven shaft (217) to rotate, thereby conveying the cleaning screen frame (701).

5. The step-by-step continuous surface treatment production device according to claim 4, characterized in that: The stepping sensor (610) is installed at the end of the feeding conveying system and the proximal end of the driving shaft (216); when the stepping sensor (610) senses the limit plate of the conveying chain (234), the conveying motor (205) is controlled to stop, and through the sensing of the stepping sensor (610), the cleaning screen frame (701) can accurately stop at the screen frame transfer position of the feeding conveying system. Preferably, the spacing between the limit plates of the conveying chain (234) is greater than the width of the cleaning screen frame (701), so that the loading and conveying system can convey the cleaning screen frame (701) at a fixed spacing.

6. The step-by-step continuous surface treatment production device according to claim 1, characterized in that: The ultrasonic system comprises an ultrasonic generator (501), an ultrasonic vibration plate (502), an ultrasonic degreasing tank (111), an ultrasonic auxiliary tank (113), an ultrasonic circulation filtering device (103), an ultrasonic heating device (504), an automatic adding device (331), a high liquid level sensor (603), and a low liquid level sensor (614); At least two ultrasonic vibration plates (502) are installed in the ultrasonic cleaning tank (111), which are installed at the bottom and liquid surface of the ultrasonic cleaning tank respectively. The translation system in the tank drives the cleaning screen frame (701) to pass through the middle of the ultrasonic vibration plates (502) located at the upper and lower ends, so as to realize the upper and lower ultrasonic cleaning of the cleaning screen frame (701) in the ultrasonic degreasing tank (111); The ultrasonic auxiliary tank (113) is located on the side of the ultrasonic main tank and is connected by an ultrasonic circulation filtering device (103). The ultrasonic circulation filtering device (103) is used to circulate and filter the medium in the ultrasonic cleaning tank 111; The ultrasonic heating device (504) is at least one and is installed in the ultrasonic cleaning tank (111) and the ultrasonic auxiliary tank (113), and is configured to heat the medium; The high liquid level sensor (603) is located below the liquid level on the side of the ultrasonic degreasing tank (111) and is configured to protect the ultrasonic vibration plate (502) at the liquid level of the ultrasonic degreasing tank (111); The low liquid level sensor (614) is installed at the bottom of the ultrasonic degreasing tank (111) and is configured to protect the circulating filtration pump (325) and the ultrasonic heating device (504).

7. The step-by-step continuous surface treatment production device according to claim 1, characterized in that: The cleaning system comprises a main cleaning tank (112), an auxiliary cleaning tank (132), a cleaning circulation filtering device (104), a tank automatic adding device (341), and a cleaning heating device (505); The auxiliary cleaning tank (132) is installed on the side of the main cleaning tank (112) and is connected via a cleaning circulation filter device (104); the cleaning circulation filter device (104) is provided with a mixed flow nozzle (415); the cleaning circulation filter device (104) is installed at the bottom of the main cleaning tank (112) and is configured to fully circulate the medium in the main cleaning tank (112).

8. The step-by-step continuous surface treatment production device according to claim 1, characterized in that: The spray system comprises a spray auxiliary tank (114), a spray water washing tank (115), a spray pump (336), a spray heating device (503), an automatic water replenishing device (515), an upper spray pipe (401), a lower spray pipe (402), a flow meter and a spray recovery tank (126); The upper spray pipe (401) and the lower spray pipe (402) are respectively installed at the upper end of the spray water washing tank (115) and the lower end of the spray water washing tank (115), the upper spray pipe (401) sprays downward, and the lower spray pipe (402) sprays upward; the spray heating device (503) is installed in the spray auxiliary tank (114) and is configured to heat the spray medium; the spray pump (336) is installed in the spray auxiliary tank (114) and is used to supply liquid to the spray pipe; the automatic water replenishing device (515) is installed in the spray auxiliary tank (114) and is used to automatically replenish water to the spray auxiliary tank (114); the spray recovery tank (126) is installed below the lower spray pipe (402) and is used to recover the spray liquid.

9. The step-by-step continuous surface treatment production device according to claim 1, characterized in that: The drying system comprises a drying tank (123), an adjustable wind knife (435), a vibration device (314), a high-pressure hot air device (347), and a frequency conversion controller; the adjustable wind knife (435) is installed on the side of the drying tank (123), and is respectively installed on the upper end and the lower end of a drying conveying chain (440) of the drying conveying system; the adjustable wind knife (435) at the upper end of the drying conveying chain (440) blows air toward the lower end of the drying conveying chain (440), and the adjustable wind knife (435) at the lower end of the drying conveying chain (440) blows air toward the upper end of the drying conveying chain (440). Preferably, the vibration device (314) is installed on the conveying chain of the translation conveying system in the ultrasonic degreasing tank, the ultrasonic surface conditioning tank, the ultrasonic water washing tank and the main cleaning tank, and on the drying conveying chain of the drying conveying system, and the frequency conversion controller controls the vibration frequency of the vibration device (314) to vibrate the screen frames in the ultrasonic degreasing tank, the ultrasonic surface conditioning tank, the ultrasonic water washing tank, the main cleaning tank and the drying tank. Preferably, the high-pressure hot air device (347) is connected to the adjustable wind knife (435), and the frequency conversion controller controls the frequency of the high-pressure hot air device to control the air outlet temperature and pressure of the adjustable wind knife (435). Preferably, the automatic drying tunnel comprises a circulating fan (358), a heater (522), a stainless steel wind wheel (446), a circulating air duct (151), a temperature sensor, a heat-insulating shell (152), a fresh air inlet (447), a fresh air filter and a dehumidification outlet (448); the circulating fan (358) is installed on the outside of the heat-insulating shell (152), the heater (522) is installed inside the heat-insulating shell (152), the stainless steel wind wheel (446) is installed inside the heat-insulating shell (152), and the stainless steel wind wheel (446) is connected to the circulating fan (358) to provide hot air for the circulating air duct. Preferably, the unloading table (108) is located at the end of the drying conveying system, for receiving the screen frame leaving the production line. Preferably, the return system includes a screen frame conveyor belt (810), a start sensor (626) and an end sensor (625). When an empty screen frame is placed on the screen frame conveyor belt (810), the start sensor senses the screen frame and starts the screen frame conveyor belt (810). After the end sensor (625) senses the cleaning screen frame (701), the screen frame conveyor belt (810) stops. Preferably, spraying, ultrasonic cleaning, surface conditioning, water washing and surface treatment slots are also provided between the feeding and conveying system and the drying system.

10. A production method using the step-by-step continuous automated processing production device according to any one of claims 1 to 9, characterized in that: The production method comprises: laying the magnet to be processed flat on the cleaning screen frame, lifting the cleaning screen frame from each independent workstation by a screen frame transfer system and transferring it to the next workstation and then putting it down, transporting the cleaning screen frame in the ultrasonic tank and the main cleaning tank by an in-tank translation conveying system, and according to the above-mentioned cleaning screen frame conveying method, the cleaning screen frame loaded with the magnet to be processed flat is sequentially subjected to ultrasonic system degreasing, spraying, surface conditioning or activation, ultrasonic cleaning, phosphating, at least one ultrasonic water washing, drying and cooling steps.

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