A self-assembled coating preparation platform

Abstract

The present application relates to a self-assembly coating preparation platform, comprising: a housing, the housing includes an outer frame, an equipment platform is arranged inside the outer frame, and a coating preparation device is installed on the equipment platform; the coating preparation device includes a three-axis truss, a nitrogen purging assembly, a water box assembly, a sample carrier assembly, a filling assembly and a row of peristaltic pumps; the three-axis truss is fixedly installed above the equipment platform for positioning the water box assembly, the sample carrier assembly and the filling assembly; an electric gripper, a wide-mouth bottle gripper and a carrier gripper are connected to the three-axis truss for clamping and grasping the wide-mouth bottle and the carrier; the nitrogen purging assembly includes a nitrogen blow nozzle and a linear module, and the nitrogen blow nozzle is connected to the linear module for purging and drying the sample on the carrier.

Description

Technical Field

[0001] This application relates to the technical field of coating preparation, and more particularly, to a self-assembled coating preparation platform. Background Art

[0002] With the gradual development of self-assembled coating technology, other types of intermolecular forces such as hydrogen bonds and covalent bonds between macromolecules have been widely used. At the same time, compared with traditional coatings that rely on the release of non-polar metal ions into the environment for sterilization, self-assembled coatings ensure antibacterial and anti-adhesion properties through their surface electrostatic forces and hydrophilic-hydrophobic characteristics. During the coating deposition process, by adjusting the type of polyelectrolyte, deposition conditions, etc., coatings with different physical and chemical properties and mechanical properties can be prepared, endowing the coatings with functionality.

[0003] Polyelectrolytes are commonly used as an option for preparing self-assembled coatings because they are easy to formulate, have a wide variety of types and compositions, low cost, and can be reused. Since the functions and properties of layer-by-layer self-assembled coatings prepared from different polyelectrolytes are different, a large amount of time is required to screen out self-assembled coatings with relatively excellent performance using the traditional frying method. At the same time, the disadvantages of manual operation are also exposed, such as: inability to accurately control the soaking time, operation errors during alternating soaking of samples, and misremembering the number of self-assembled coating layers.

[0004] At the same time, as the alternating soaking progresses, the solution of the polyelectrolyte will gradually decrease with the transfer of the sample. Therefore, the uniformity of the solution before and after soaking cannot be guaranteed. If manual operation is used, it is inevitable that the polyelectrolyte solution will be contaminated due to improper manual operation. Dust in the air and other drug powders contaminated on the clamping device will also affect the coating performance. Timely replenishment of liquid or cleaning will greatly extend the time required for coating preparation; if a traditional automated robotic arm coating preparation device is used, although the robotic arm greatly avoids the errors caused by manual operation, the size of the robotic arm device cannot be ignored. The area within the circle centered on the robotic arm is a vacuum area, and the space utilization rate is low. Summary of the Invention

[0005] The purpose of this application is to provide a self-assembled coating preparation platform that can solve the technical problems in the existing self-assembled coating technology described above.

[0006] To achieve the above purpose, the present invention provides a self-assembled coating preparation platform, including: a housing, the housing includes an outer frame, an equipment platform is arranged inside the outer frame, and a coating preparation device is installed on the equipment platform;

[0007] The coating preparation device includes a three-axis truss, a nitrogen purging assembly, a water box assembly, a sample carrier assembly, a filling assembly, and a multi-channel peristaltic pump;

[0008] The three-axis truss is fixedly installed above the equipment platform and is used to position the water box assembly, the sample carrier assembly, and the filling assembly;

[0009] An electric gripper, a wide-mouth bottle gripper, and a carrier gripper are connected to the three-axis truss and are used to clamp and grab the wide-mouth bottle and the carrier;

[0010] The nitrogen purging assembly includes a nitrogen nozzle and a linear module. The nitrogen nozzle is connected to the linear module and is used to purge and dry the samples on the carrier.

[0011] In an alternative embodiment, the three-axis truss includes an X-axis module, a Y-axis module, a Z-axis module, and a drag chain. The X-axis module is arranged on both sides of the Y-axis module, and the Z-axis module is connected to the Y-axis module.

[0012] In an alternative embodiment, the electric gripper, the wide-mouth bottle gripper, and the carrier gripper are connected to the Z-axis module, and a laser rangefinder capable of detecting the lifting height is installed on the Z-axis module.

[0013] In an alternative embodiment, the Z-axis module includes a module frame, a left Z-axis module and a right Z-axis module installed on the module frame. The electric gripper and the wide-mouth bottle gripper are installed on the left Z-axis module, and the carrier gripper is installed on the right Z-axis module;

[0014] A stepper motor is further installed on the left Z-axis module, and an electric push rod, a barcode scanning camera, a water extraction needle, and a water injection needle are further installed on the right Z-axis module;

[0015] The laser rangefinder is fixed below the drag chain.

[0016] In an alternative embodiment, the filling assembly includes a wide-mouth bottle, a linkage rod, a filling needle, a gooseneck elbow, a filling sensor, a lifting module, a guide rail, a drawer, a solution barrel, and a weighing tray. The row of peristaltic pumps includes two rows, and each row includes a plurality of peristaltic pumps;

[0017] The lifting module can drive the filling needle to vertically lift relative to the wide-mouth bottle. The filling sensor is arranged below the wide-mouth bottle and is used to detect whether the wide-mouth bottle is placed at the working station of the wide-mouth bottle;

[0018] The peristaltic pump, the solution barrel, the weighing tray, the linkage rod, the filling needle, the gooseneck elbow, and the filling sensor respectively correspond to the wide-mouth bottle one by one and can be independently controlled;

[0019] The solution bucket, the wide-mouth bottle, the filling needle, the gooseneck elbow and the peristaltic pump are connected by hoses.

[0020] In an alternative embodiment, the water box assembly includes a water box, a positioning block, a water box slide rail and a water box tray. A float, a water box sensor and a positioning pin are correspondingly arranged for each water box. The water box sensor is arranged below the water box tray for detecting whether there is a solution in the water box, and the float is arranged on the side of the water box for detecting the height of the solution in the water box.

[0021] In an alternative embodiment, the sample carrier assembly includes a carrier, a positioning disk, a carrier tray, a carrier sensor, a carrier slide rail and a proximity sensor. The carrier tray is mounted on the equipment platform through the carrier slide rail;

[0022] The carrier sensor and the proximity sensor are arranged below the carrier tray. Among them, the carrier sensor is used for detecting whether the carrier is mounted on the carrier tray, and the proximity sensor is used for detecting whether the carrier tray is at the tray station.

[0023] In an alternative embodiment, a two-dimensional code is carried on the carrier, and the code scanning camera is used for scanning the two-dimensional code and recording and / or identifying the current state of the carrier.

[0024] In an alternative embodiment, a manually openable cabinet door is arranged on the housing, and a lifting glass door is installed on the upper part of the cabinet door. The lifting glass doors are arranged on the front and rear sides of the housing.

[0025] In an alternative embodiment, a camera for monitoring the operation status of the coating preparation device is installed on the inner side of the top of the housing;

[0026] A plurality of exhaust ports are arranged on the top plate of the housing, and fans are installed on the exhaust ports.

[0027] In the self-assembled coating preparation platform of the present application, through the three-axis truss, nitrogen purging assembly, water box assembly, sample carrier assembly and filling assembly included in the coating preparation device, and combined with the control unit to control each component of the coating preparation device, it can solve the problems in the existing self-assembled coating preparation that the soaking time, the number and thickness of the self-assembled coating cannot be accurately controlled, the quantitative processing time is long, and it cannot be prepared in large batches industrially, avoid the errors caused by manual operation, and at the same time ensure that the states of the same batch of samples are the same, greatly saving the labor cost.

[0028] Other features and advantages of the present application will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0029] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related accompanying drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 External structural schematic diagram of the self-assembled coating preparation platform in the present application;

[0031] Figure 2 Schematic diagram of the housing structure of the self-assembled coating preparation platform in the present application;

[0032] Figure 3 Internal structural schematic diagram of the self-assembled coating preparation platform in the present application;

[0033] Figure 4 Schematic diagram of the structure of the three-axis truss;

[0034] Figure 5 Schematic diagram of the structure of the Z-axis module;

[0035] Figure 6 Schematic diagram of the structure of the nitrogen purging assembly;

[0036] Figure 7 Schematic diagram of the structure of the filling assembly;

[0037] Figure 8 Schematic diagram of the structure of the water box assembly;

[0038] Figure 9 For Figure 8 Bottom structural schematic diagram;

[0039] Figure 10 Schematic diagram of the structure of the water box;

[0040] Figure 11 Schematic diagram of the structure of the sample carrier assembly;

[0041] Figure 12 Bottom structural schematic diagram of the carrier tray;

[0042] Figure 13 Schematic diagram of the structure of the carrier;

[0043] Figure 14 Installation structural schematic diagram of the peristaltic pump;

[0044] Figure 15 Schematic diagram of the structure of the drawer.

[0045] Icon:

[0046] 10 - Housing; 11 - External frame; 12 - Internal equipment platform; 13 - Cabinet door; 14 - Lifting glass door;

[0047] 20 - Three - axis truss; 210 - X - axis module; 220 - Y - axis module;

[0048] 230 - Z - axis module; 231 - Module frame; 232 - Left Z - axis module; 233 - Right Z - axis module; 234 - Drag chain;

[0049] 21 - Electric gripper; 22 - Wide - mouth bottle gripper; 23 - Carrier gripper; 24 - Laser rangefinder; 25 - Stepper motor; 26 - Electric push rod; 27 - Scanning camera; 28 - Water - pumping needle; 29 - Water - filling needle;

[0050] 30 - Nitrogen purging assembly; 31 - Nitrogen nozzle; 32 - Linear module;

[0051] 40 - Water box assembly; 41 - Water box; 42 - Positioning block; 43 - Water box slide rail; 44 - Water box tray; 45 - Floating buoy; 46 - Water box sensor; 47 - Positioning pin;

[0052] 50 - Sample carrier assembly; 51 - Positioning disk; 52 - Carrier tray; 53 - Carrier sensor; 54 - Carrier slide rail; 55 - Proximity sensor;

[0053] 60 - Filling assembly; 61 - Linking rod; 62 - Filling needle; 63 - Gooseneck elbow; 64 - Filling sensor; 65 - Lifting module; 66 - Filling guide rail; 67 - Drawer; 68 - Solution barrel; 69 - Weighing tray;

[0054] 70 - Peristaltic pump;

[0055] 80 - Wide - mouth bottle; 90 - Carrier; 100 - Camera. Detailed implementation manners

[0056] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0057] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "inner" and "outer" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the products of this application are customarily placed during use. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0058] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "installed" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0059] The self-assembled coating preparation platform in the present application can accurately position the components on the equipment platform through a three-axis truss, and use a wide-mouth bottle gripper and a carrier gripper to realize solution preparation and carrier grasping. At the same time, the code-scanning camera loaded on the truss module can scan the two-dimensional code carried on the carrier, so as to realize the real-time observation and recording of the current state parameters of the sample, and efficiently prepare the composite self-assembled coatings of different polyelectrolytes.

[0060] The present invention solves the problems in the existing self-assembled coating preparation process, such as the inability to control the number of layers and the preparation time, and the improper operation during the alternating immersion in the polyelectrolyte solution, avoids the errors caused by manual operation, and at the same time ensures that the states of the samples in the same batch are the same, greatly saving the labor cost.

[0061] See Figure 1 and in combination with Figures 2 - 15 From the perspective of specific composition, the main mechanism of the self-assembled coating preparation platform in the present invention includes a housing 10, and the housing 10 is mainly composed of an external frame 11 and an internal equipment platform 12. The external frame 11 is integrally connected by welding technology, with 45 steel as the frame theme, and the outer shell is wrapped with sheet metal.

[0062] A coating preparation device is installed on the internal equipment platform 12. The main equipment of the coating preparation device includes: a camera 100, a three-axis truss 20, a nitrogen purging device, a water box assembly 40, a sample carrier assembly 50, a filling assembly 60, a multi-channel peristaltic pump 70, a drawer 67, a solution barrel 68, and a weighing tray.

[0063] The three-axis truss 20 is fixedly installed above the internal equipment platform 12 and is used to position the water box assembly 40, the sample carrier assembly 50, and the filling assembly 60. Through the close cooperation of the three-axis truss 20, the filling assembly 60, the carrier 90 assembly, and the water box assembly 40, self-assembled coatings of different polyelectrolyte solutions can be prepared in sequence. At the same time, the drying of the samples on the carrier 90 is completed by using the nitrogen purging device.

[0064] The three-axis truss 20 uses a combination of ball linear guides and precision ball screws, and the driving method adopts a servo motor, which can achieve a positioning error of ±0.01 mm. On the premise of ensuring precise control, it also maximizes the use of space, which is conducive to enabling the self-assembled coating preparation platform to realize the automatic production and processing of large quantities of self-assembled coatings in industrial scale.

[0065] An electric gripper 21, a wide-mouth bottle gripper 22, and a carrier gripper 23 are connected to the three-axis truss 20 and are used to clamp and grab the wide-mouth bottle 80 and the carrier 90. By precisely controlling the wide-mouth bottle gripper 22 and the carrier gripper 23 on the three-axis truss 20, especially in the Z-axis module 230, compared with the traditional automated robotic arm coating preparation equipment, the three-axis truss 20 can minimize the movement amplitude and the size of the device to the greatest extent. It not only has the precise operation of the robotic arm but also meets the synchronous progress of different operations.

[0066] The nitrogen purging assembly 30 includes a nitrogen nozzle 31 and a linear module 32. The nitrogen nozzle 31 is connected to the linear module 32 and is used to purge and dry the samples on the carrier 90. When the carrier 90 is placed in the nitrogen purging device, the nozzle assembly can blow out nitrogen to air-dry the surface of the samples.

[0067] The filling assembly 60 can fill 8 different polyelectrolyte solutions, and the dosage is precisely controlled by the weighing tray below the solution barrel 68. The Z-axis module 230 of the three-axis truss 20 can simultaneously grab the wide-mouth bottle 80 and the carrier 90, efficiently complete the solution pouring and the cleaning and drying of the samples on the carrier 90. The entire device can complete the automated large-scale production and processing of self-assembled coatings from designing the coating parameters to preparation through automatic control, avoiding the waste of human resources and the errors of manual operations.

[0068] From the perspective of precise positioning by the three-axis truss 20, the three-axis truss 20 includes an X-axis module 210, a Y-axis module 220, a Z-axis module 230, and a drag chain 234. The X-axis module 210 is arranged on both sides of the Y-axis module 220, and the Z-axis module 230 is connected to the Y-axis module 220.

[0069] The X-axis module 210 and the Y-axis module 220 are responsible for positioning the two-dimensional positions of each component. The Z-axis module 230 can pour the wide-mouth bottle 80 filled with solution into the water box 41, and at the same time can grab the carrier 90 to perform related operations such as cleaning, drying, and soaking the sample.

[0070] Further, the electric gripper 21, the wide-mouth bottle gripper 22, and the carrier gripper 23 are connected to the Z-axis module 230. A laser rangefinder 24 capable of detecting the lifting height of the Z-axis module 230 and the driven fixture and detecting the height of the solution in the water box is installed on the Z-axis module 230.

[0071] Specifically, in the three-axis truss 20, the X-axis module 210, the Y-axis module 220, and the Z-axis module 230 are respectively 1000mm, 1200mm, and 300mm. The Z-axis module 230 is provided with a module housing. The three-axis truss 20 is fixed above the equipment platform. The X-axis module 210 and the Y-axis module 220 realize two-dimensional positioning of the water box assembly 40, the sample carrier assembly 50, and the filling assembly 60 above the platform. The laser rangefinder 24 realizes positioning of the height of the Z-axis module 230, so as to meet the three-dimensional positioning of all components of the three-axis truss 20 on the equipment platform.

[0072] The transmission structure of the three-axis truss 20 adopts a combination of ball linear guides and precision ball screws, and the driving method adopts a servo motor. This combination method can achieve a positioning error of ±0.01mm. The three-axis truss 20 also has an emergency avoidance program. During the walking process, it can always monitor the current of the servo motor. If a collision causes overloading, generally 1.1 times the rated load, the servo motor will stop running, and at the same time the servo driver will issue an overload alarm.

[0073] Both sides of the three-axis truss 20 have the limit positions of each moving axis, and limit photoelectric switches are set. When the mechanism touches this limit switch, the servo motor will stop and the servo driver will alarm. The above collision alarm and over-limit alarm are programmed in the PLC program, and the programmer can program and teach the running path of the truss manipulator and the grasping action of the end manipulator according to the process requirements, and integrate the external sensor signals and alarm signals into the program.

[0074] From the perspective of accurately grasping the wide-mouth bottle 80 and the carrier 90, the Z-axis module 230 includes a module frame 231, a left Z-axis module 232 and a right Z-axis module 233 installed on the module frame 231, and is connected to the frame through two drag chains 234.

[0075] The electric gripper 21 and the wide-mouth bottle gripper 22 are installed on the left Z-axis module 232, and the carrier gripper 23 is installed on the right Z-axis module 233. The two drag chains 234 on the Z-axis module 230 can respectively enable the wide-mouth bottle gripper 22 and the carrier gripper 23 to grasp the wide-mouth bottle 80 and the carrier 90. The electric gripper 21 tightens the wide-mouth bottle 80 by continuously contracting. The carrier gripper 23 is installed at the end of the truss, and uses a servo electric gripper and a profiling finger to clamp the positioning groove of the carrier 90 from the outside.

[0076] A stepping motor 25 is also installed on the left Z-axis module 232, and an electric push rod 26, a code scanning camera 27, a water extraction needle 28, and a water injection needle 29 are also installed on the right Z-axis module 233. The laser rangefinder 24 is fixed below the drag chain 234.

[0077] After the wide-mouth bottle 80 filled with the polyelectrolyte solution is clamped above the water box assembly 40, the stepping motor 25 rotates to pour the solution in the wide-mouth bottle 80 into the water box 41, and the pouring speed and height can be set according to requirements. After clamping the carrier 90, the sample in the carrier 90 needs to be cleaned. The water injection needle 29 above the carrier gripper 23 injects deionized water into the carrier 90 to clean the surface of the sample, and the flow rate can be set as needed. The water extraction needle 28 extracts the waste liquid after cleaning to the sewage water tank through the peristaltic pump 70, and then the carrier 90 is placed in the nitrogen purging device to be dried.

[0078] Since the waste liquid is extracted, the time for nitrogen drying is reduced, which greatly saves the use of nitrogen and reduces the loss of nitrogen.

[0079] The dried sample will be clamped and sent into the water box 41 through the electric push rod 26 for coating preparation. The positioning pin 47 in the water box 41 can be tightly combined with the carrier 90 to prevent the carrier 90 from floating due to too much solution in the water box 41. When the soaking time of the carrier 90 in the A solution water box 41 reaches, the truss manipulator takes out the carrier 90, puts it into the clean water box 41 for cleaning, and then puts it into the B solution water box 41. The truss manipulator moves to the A solution water box 41, and the water extraction needle 28 descends to extract the solution into the sewage bucket. The water injection needle 29 injects clean water to clean the A water box 41, and the water extraction needle 28 extracts the cleaning water; the water extraction needle 28 rises, the truss manipulator moves to the clean water box 41, the water extraction needle 28 descends to extract the clean water for cleaning the carrier 90, after extraction, the water injection needle 29 injects clean water, the water extraction needle 28 extracts the clean water again, and the water injection needle 29 injects clean water again for standby.

[0080] The dried sample will be clamped and sent into the water box through an electric push rod for the preparation of the self-assembled coating. The positioning pins in the water box can be tightly combined with the carrier, and the float on the side of the water box can detect the solution height through laser ranging, and replenish the liquid for the water box with a lower liquid level. Different water boxes are respectively filled with different A and B polyelectrolyte solutions and clean water. The dry sample carrier is first placed in the water box filled with solution A for soaking, and the required soaking and cleaning time can be set in the program. After reaching the set time, the Z-axis module takes it out and puts it into the clean water box for cleaning. After the cleaning is completed, the carrier gripper will shake it to shake off the residual sewage on the surface of the sample. Then the carrier is placed in solution B for soaking. After repeating the above steps in solution A, the carrier is sent to the nitrogen purging assembly for drying, and then a self-assembled coating sample is obtained. If a multi-layer coating sample is required, the number of self-assembled coating layers can be set according to the requirements.

[0081] After the preparation of the self-assembled coating sample is completed, the water extraction needle on the Z-axis module extracts the A and B solutions and clean water into the sewage bucket. After cleaning the water box through the water injection needle and then extracting it into the sewage bucket through the water extraction needle, repeat 3 times and then start a new coating preparation.

[0082] The code scanning camera 27 scans the QR code on each carrier 90 and records the sample status in the program, such as: the number of sample coating layers, whether it is cleaned, and the polyelectrolyte solution for soaking the sample, etc.

[0083] The nitrogen purging assembly 30 includes a nitrogen blow nozzle 31 and a linear module 32. The nitrogen blow nozzle 31 is connected to the linear module 32, and the nitrogen cylinder is placed in the cabinet on one side of the test bench. Before the carrier gripper 23 sends the carrier 90 into the nitrogen purging device, the linear module 32 will translate the blow nozzle assembly to the rear of the nitrogen purging device according to the program setting. After the carrier 90 is fixed and the Z-axis module 230 rises to a certain height, the linear module 32 translates back beside the carrier 90 to make the blow nozzle assembly located at the central fixed point directly above it, and the nitrogen purging device starts to operate.

[0084] The nitrogen purging device can dry the residual liquid droplets used for cleaning on the surface of the sample to ensure the uniformity of the sample during preparation. The nitrogen pressure and height of the blow nozzle assembly can be adjusted to further increase the drying speed. While the nitrogen purging device is purging and drying, the grasping and pouring of the wide-mouth bottle 80 can be carried out synchronously.

[0085] The filling assembly 60 includes 8 wide-mouth bottles 80, a linkage rod 61, 8 filling needles 62, 8 gooseneck elbows 63, 8 filling sensors 64, a lifting module 65, a filling guide rail 66, a drawer 67, 8 solution barrels 68, and 8 weighing trays 69. The row-type peristaltic pump 70 includes two rows, and each row includes multiple peristaltic pumps 70. The filling assembly 60 can place nine different solution reagents at one time, and can record the usage of the solution in each wide-mouth bottle 80 according to the weighing tray under the platform.

[0086] The total height of the filling assembly 60 device is 462 mm. The lifting module 65 can drive the filling needle 62 to vertically lift relative to the wide-mouth bottle 80, and the liftable range is 150 mm. The total height of the wide-mouth bottle 80 is 148 mm, the diameter is 86 mm, the height of the bottle mouth is 30 mm, the diameter is 50 mm, and it can hold 500 ml of solution.

[0087] Each row of the row-type peristaltic pump 70 contains four individual peristaltic pumps 70. The peristaltic pump 70, the solution barrel 68, the weighing tray 69, the wide-mouth bottle 80, the linkage rod 61, the filling needle 62, the gooseneck elbow 63, and the filling sensor 64 correspond one by one and can be independently controlled. The solution barrel 68, the wide-mouth bottle 80, the filling needle 62, the gooseneck elbow 63, and the peristaltic pump 70 are connected by plastic hoses, and each wide-mouth bottle corresponds to the solution barrel located below it.

[0088] Below the tooling of each wide-mouth bottle 80, a filling sensor 64 for detecting presence or absence is provided, and an alarm will be triggered if the wide-mouth bottle 80 is not replaced. The weighing tray records the weight of the solution barrel 68 in real time, and records the current solution usage in the program background. At the same time, the remaining amount in the solution barrel 68 will be displayed on the touch screen.

[0089] When the lifting module 65 descends, the row-type peristaltic pump 70 starts to extract the solution from the solution barrel 68, and fills it into the wide-mouth bottle 80 through the gooseneck elbow 63 and the filling needle 62. When the lifting module 65 ascends, the solution filling stops. The gooseneck elbow 63 can prevent the solution from being contaminated during the filling process, and a control button is provided on the side of the gooseneck elbow 63, which can be used to quickly disassemble the gooseneck elbow 63 and quickly replace the hose of the peristaltic pump 70.

[0090] At the same time, the easy-disassembly characteristic of the gooseneck elbow 63 enables the filling assembly 60 to be repaired immediately when an operation error occurs. If the hose is directly connected to the filling needle 62, there will be solution residue at the uppermost bending part, which cannot ensure the consistency of the solution volume and uniformity in the wide-mouth bottle 80.

[0091] The water box assembly 40 includes 12 water boxes 41, 12 positioning blocks 42, a water box slide rail 43, and a water box tray 44. Each water box 41 is correspondingly provided with a float 45, a water box sensor 46, and a positioning pin 47. The water box sensor 46 is arranged below the water box tray 44 and is used to detect whether there is a solution in the water box 41.

[0092] The size of the water box tray 44 is 730*535*15 mm. The horizontal and vertical spacings between the water boxes 41 are 70 mm and 35 mm respectively. There is a water box sensor 46 below the water box tray 44, which is used to detect whether there is a solution or deionized water in the water box 41 to prevent the situation of injecting water into the water box 41 without water. Each water box 41 can hold a carrier 90.

[0093] The water box tray 44 is fixed by the water box slide rail 43 below. The extended length of the water box slide rail 43 is 500 mm. The water boxes 41 of the water box assembly 40 are arranged in three rows and four columns horizontally, with a size of 172*90*80 mm. When 500 ml of liquid is poured in, the liquid level height is 37 mm.

[0094] The float 45 in the water box 41 is used to detect the solution height. The liquid level height is fed back to the program and recorded through the laser rangefinder in the Z-axis module, which is convenient for subsequent experiments to adjust the volume of the solution filled by the filling assembly 60, so as to determine the most appropriate liquid level height. During the experiment, deionized water will be automatically injected for flushing after each liquid change. After the experiment is completed, the water box 41 can be manually removed for thorough cleaning.

[0095] The sample carrier assembly 50 includes carriers 90, 8 positioning discs 51, a carrier tray 52, 4 carrier sensors 53, 2 carrier slide rails 54, and 1 proximity sensor 55. The carrier tray 52 is installed on the equipment platform through 2 carrier slide rails 54.

[0096] The carrier sensors 53 and the proximity sensor 55 are arranged below the carrier tray 52. Among them, the carrier sensors 53 are used to detect whether there is a carrier 90 on the carrier tray 52, and the proximity sensor 55 is used to detect whether the carrier tray 52 is at the tray station.

[0097] The size of the carrier tray 52 is 460*360*10 mm. Every 4 trays of the carriers 90 are in a group. There are also 4 carrier sensors 53 installed below the carrier tray 52, which are used to detect whether there is a carrier 90 above. The proximity sensor 55 installed below the tray is used to detect whether the tray is in a specific position.

[0098] The extended length of the lower vehicle slide rail 54 is 450 mm. The size of the vehicle 90 is 140*76*30, and each vehicle 90 can carry 25 samples of 10 mm*10 mm*3 mm. A QR code is carried on the vehicle 90. The code scanning camera 27 in the Z-axis module 230 of the three-axis truss 20 can scan the QR code to record the current state of each vehicle 90. The content of the QR code is the vehicle 90 number, which is used together with the code scanning mechanism on the truss manipulator to automatically identify the vehicle 90 number and bind test data, such as: the polyelectrolyte solution for soaking, the current number of self-assembled coating layers, the sample cleaning situation, etc.

[0099] The positioning plate 51 containing 4 vehicle sensors 53 is used to place the vehicle 90 without coating. The 4 detection switches below and the test setting form a closed loop to detect whether the vehicle 90 exists before the test. If it exists, the test will be carried out. The positioning plate 51 without the vehicle sensor 53 is used to place the vehicle 90 after the test and is not placed by default at the start of the test.

[0100] To prevent accidental manual placement of the vehicle 90, the laser distance sensor on the Z-axis module 230 will detect the position height information of the vehicle 90 module before the start of the test to confirm the existence of the vehicle 90 and the number of layers of the vehicle 90, preventing collisions caused by misplacement. The purpose of fixing the vehicle tray 52 with the vehicle slide rail 54 is to facilitate the operator to place the vehicle 90. To prevent the operator from not pushing the vehicle tray 52 back to the designated position, a proximity sensor 55 is equipped below. Only when the vehicle tray 52 is pushed back to the designated position will the proximity sensor 55 have a signal to ensure the normal operation of the test.

[0101] Four manually opened and closed cabinet doors 13 are installed at the lower ends of the front and back sides of the housing 10, and electric lifting glass doors 14 are installed at the upper ends. The lifting doors are driven by electric cylinders and guide rails. The electric cylinders of the lifting glass doors 14 on the front and back sides of the housing 10 are all installed on the left side of the equipment and wrapped with an outer shell.

[0102] The electric lifting glass doors 14 are installed on the front and rear sides of the housing 10 for easy display, adjustment and maintenance. Four exhaust vents are provided on the top plate of the housing 10, and cooling fans are installed on the exhaust vents to accelerate the air circulation inside the housing 10 and ensure that there will be no overheating caused by equipment operation problems inside. Four casters are installed at the bottom of the housing 10 for easy overall movement.

[0103] The camera 100 is located at the top of the platform to monitor the operation of each component on the equipment platform. The light strip surrounds the top of the equipment. If a component runs with an error, a red light will be on, and if it runs normally, a green light will be on.

[0104] Compared with the prior art, the self-assembled coating preparation platform in the present invention has the following advantages:

[0105] It is possible to complete self-assembled coatings prepared from different polyelectrolyte solutions at the same time, and the required coatings can be customized according to the program, reducing the time consumed in the screening of high-performance functional self-assembled coatings;

[0106] The filling component 60 ensures that the solution is not contaminated by dust in the external environment, and the easy-to-dismantle property of the gooseneck elbow 63 enables timely replacement when the program runs with errors, ensuring the uniformity of the solution;

[0107] The time required for preparation is accurately controlled by the three-axis truss 20. The program control avoids operation errors caused by manual operation, effectively controlling the number of layers and thickness of the self-assembled coating. At the same time, the use of a fixed nitrogen purge device can ensure the consistency of the coating state on the sample, greatly accelerating the coating preparation speed.

[0108] The QR code on the carrier 90, after being scanned by the code scanning camera 27, can record parameters such as the name of the solution in which the current sample is immersed, the solution category, and the number of coating layers, and the current progress can be observed in real time on the touch panel.

[0109] By adding other components on the platform, the integration of preparation and characterization is realized, directly obtaining the characterization results of different high-performance functional self-assembled coatings prepared, and the preparation scheme and parameters can be adjusted according to the characterization results.

[0110] It should be noted that, without conflict, the features in the embodiments of the present application can be combined with each other.

[0111] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A self-assembly coating preparation platform, characterized in that: It comprises: a shell, the shell comprises an external frame, an equipment platform is arranged inside the external frame, and a coating preparation device is installed on the equipment platform; The coating preparation device includes a three-axis truss, a nitrogen purge assembly, a water box assembly, a sample carrier assembly, a filling assembly and a row of peristaltic pumps; The three-axis truss is fixedly installed above the equipment platform and is used to position the water box assembly, the sample carrier assembly and the filling assembly; The three-axis truss is connected with an electric gripper, a wide-mouth bottle gripper and a carrier gripper for clamping and grasping the wide-mouth bottle and the carrier; The nitrogen purge assembly includes a nitrogen nozzle and a linear module, wherein the nitrogen nozzle is connected to the linear module and is used to purge and dry the sample on the carrier; The three-axis truss includes an X-axis module, a Y-axis module, a Z-axis module and a drag chain, wherein the X-axis module is arranged on both sides of the Y-axis module, and the Z-axis module is connected to the Y-axis module; The electric gripper, the wide-mouth bottle gripper and the carrier gripper are connected to the Z-axis module, and a laser rangefinder capable of detecting the lifting height is installed on the Z-axis module; The Z-axis module includes a module frame, and a left Z-axis module and a right Z-axis module installed on the module frame, the electric gripper and the wide-mouth bottle gripper are installed on the left Z-axis module, and the carrier gripper is installed on the right Z-axis module; The left Z-axis module is also equipped with a stepper motor, and the right Z-axis module is also equipped with an electric push rod, a barcode scanning camera, a water pumping needle and a water injection needle; The laser rangefinder is fixed below the drag chain.

2. The self-assembly coating preparation platform according to claim 1, characterized in that: The filling assembly includes a wide-mouth bottle, a linkage rod, a filling needle, a gooseneck elbow, a filling sensor, a lifting module, a guide rail, a drawer, a solution barrel and a weighing tray, and the row of peristaltic pumps includes two rows, each row includes a plurality of peristaltic pumps; The lifting module can drive the filling needle to lift vertically relative to the wide-mouth bottle, and the filling sensor is arranged below the wide-mouth bottle to detect whether the wide-mouth bottle is placed on the wide-mouth bottle station; The peristaltic pump, the solution barrel, the weighing tray, the linkage rod, the filling needle, the gooseneck elbow and the filling sensor correspond to the wide-mouth bottle one by one and can be controlled independently; The solution barrel, the wide-mouth bottle, the filling needle, the gooseneck elbow and the peristaltic pump are connected by a hose.

3. The self-assembly coating preparation platform according to claim 1, characterized in that: The water box assembly includes a water box, a positioning block, a water box slide rail and a water box tray. Each water box is correspondingly provided with a float, a water box sensor and a positioning pin. The water box sensor is arranged below the water box tray to detect whether there is solution in the water box. The float is arranged on the side of the water box to detect the height of the solution in the water box.

4. The self-assembly coating preparation platform according to claim 1, characterized in that: The sample carrier assembly includes a carrier, a positioning plate, a carrier tray, a carrier sensor, a carrier slide rail, and a proximity sensor, and the carrier tray is mounted on the equipment platform through the carrier slide rail; The carrier sensor and the proximity sensor are arranged below the carrier pallet, wherein the carrier sensor is used to detect whether the carrier pallet is loaded with the carrier, and the proximity sensor is used to detect whether the carrier pallet is on a pallet station.

5. The self-assembly coating preparation platform according to claim 4, characterized in that: The carrier is equipped with a QR code, and the scanning camera is used to scan the QR code and record and / or identify the current status of the carrier.

6. The self-assembly coating preparation platform according to claim 1, characterized in that: The housing is provided with a cabinet door which can be opened and closed manually, and a lifting glass door is installed on the upper part of the cabinet door, and the lifting glass door is arranged on the front and rear sides of the housing.

7. The self-assembly coating preparation platform according to claim 1, characterized in that: A camera for monitoring the operating status of the coating preparation device is installed on the inner side of the top of the shell; A plurality of air outlets are arranged on the top plate of the shell, and fans are installed on the air outlets.

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