A kind of button formula lithium battery laboratory semi-automatic glass plate cleaning machine

Abstract

The utility model discloses a half -automatic glass plate cleaning machine for button formula lithium cell laboratory, and this cleaning machine includes frame, transmission system, cleaning module, guide system, drainage system, control system and places blow -dry module, and the frame is by washing area box body (1), and the placement area side board (2), and the side board (3) of taking area and the triangular support base (4) are composed, and the transmission system (5) includes the rubber crawler belt and drive motor that are provided with antiskid texture on the surface, and the cleaning module is along the transmission direction and is equipped with pre -spray section, water brush section, alcohol spray section, fine brush section and wiper section in proper order, and pre -spray section and alcohol spray section are equipped with liquid storage tank (8) and universal nozzle (13) symmetrically, and water brush section and fine brush section are equipped with brush roller (9) symmetrically, and the guide system is the polytetrafluoroethylene guide strip (11) of sectional arrangement, and the placement blow -dry module includes support rod (15) and blow -dry fan (16). The utility model discloses cleaning efficiency is high, and the residual is few, and the single piece glass plate cleaning time consumption is 12 35s.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery experimental equipment technology, specifically to a semi-automatic cleaning device for glass plates used in laboratory coating of button lithium batteries. It is suitable for efficient and standardized cleaning of coated glass plates in laboratory settings, solving the problems of low efficiency, excessive residue, and easy contamination associated with manual cleaning. Background Technology

[0002] In the laboratory research and development of coin cell lithium batteries, the coating process is one of the key steps, requiring the use of glass plates of specific sizes as the coating substrate. After the experiment, electrode slurry (containing binders, conductive agents, active materials, etc.) will remain on the surface of the glass plate, which must be thoroughly cleaned before reuse.

[0003] Currently, laboratories commonly use manual cleaning methods: operators hold the glass plate under running water, wipe it with alcohol, and finally dry it with a non-woven cloth. This method has the following drawbacks:

[0004] 1. Unstable cleaning quality: The large differences in manual operation force and wiping path can easily lead to residual slurry or water stains on the glass plate surface, affecting the accuracy of subsequent coating.

[0005] 2. Serious waste of resources: The continuous flow of water from the tap makes it difficult to control the amount of alcohol used, resulting in unnecessary consumption of water resources and reagents;

[0006] 3. Insufficient cleanliness: Wiping with non-woven fabric can easily cause fiber shedding, which can contaminate the surface of the glass plate and thus affect the results of subsequent battery performance tests;

[0007] 4. Low efficiency: Cleaning a single glass plate takes about 3-5 minutes. When there are many batches of experiments, it requires a lot of manpower and time.

[0008] Existing industrial-grade glass cleaning equipment is bulky, expensive (typically tens of thousands of yuan), and mostly designed for large-area glass (such as photovoltaic glass and display glass), making it unsuitable for small-sized coated glass plates in laboratories (typically 200mm×150mm×3mm), and failing to meet the flexible and miniaturized usage needs of laboratories. Therefore, there is an urgent need for a glass plate cleaning device that is suitable for laboratory settings, low-cost, efficient, and standardized. Utility Model Content

[0009] Purpose

[0010] The purpose of this utility model is to provide a semi-automatic glass plate cleaning machine for button lithium batteries in laboratories. Through modular design, it realizes integrated cleaning of "pre-spraying - water brushing - alcohol spraying - fine brushing - squeegeeing - drying". Combined with automated control and optimized structure, it improves cleaning efficiency and cleanliness, ensures operational safety, and is suitable for the cleaning needs of small-sized glass plates in laboratories.

[0011] Technical solution

[0012] A semi-automatic glass plate cleaning machine for button-type lithium batteries in a laboratory includes a frame, a transmission system, a cleaning module, a guiding system, a drainage system, a control system, and a placement and drying module. The frame includes a washing area box, a placement area side panel, a waiting area side panel, and a triangular support base. The two side boxes are connected to the central main body via U-shaped slide rails. The transmission system includes a rubber track with anti-slip texture and a drive motor. The cleaning module is arranged sequentially along the transmission direction as a pre-spray section, a water brush section, an alcohol spray section, a fine brush section, and a squeegee section. The pre-spray and alcohol spray sections are symmetrically equipped with liquid storage tanks and universal nozzles. The water brush and fine brush sections are symmetrically equipped with three sets of vertically arranged brush rollers. The brush rollers are made of a mixture of nylon and polyurethane filaments. The nylon filaments in the water brush section have a diameter of 0.1-0.2 mm, and the polyurethane filaments have a diameter of 0.15 mm, allowing the brush bristles to adapt to glass plates with a thickness of 3-5 mm through elastic deformation. The fine brush section uses ultra-fine nylon filaments with a diameter of 0.08-0.1 mm. The guiding system consists of segmented PTFE guide strips, with a rounded corner guide structure at the end near the feed inlet. The guide strips for the pre-spray and alcohol spray sections are triangular, while the water brush and fine brush sections do not have guide strips. The drainage system includes zoned inclined drainage channels and outlets, with the drainage channel inclination angle ranging from 5 to 30 degrees. The control system includes a controller, photoelectric sensors, and solenoid valves, controlling the on / off operation of the cleaning module via signals. The drying module includes support rods and a drying fan. The cleaning machine is equipped with an emergency shutdown button, allowing for rapid shutdown in case of an emergency.

[0013] The specific structure is as follows:

[0014] 1. Rack

[0015] The rack consists of a washing area cabinet, a placement area side panel, a waiting area side panel, and a support base. The overall dimensions do not exceed 1350mm×310mm×380mm (length×width×height), and it is suitable for placement on laboratory countertops.

[0016] The washing area has a stainless steel frame structure with a transparent acrylic protective panel on the outside to prevent liquid splashing during the washing process and to facilitate observation of the contents of the washing area.

[0017] The side panels of the placement area and the side panels of the waiting area are located at both ends of the box, forming the operation space for loading and unloading.

[0018] The support base is designed with a triangular structure and is integrated with the bottom support of the box to improve stability.

[0019] An emergency stop button (red mushroom-shaped, 20mm in diameter) is located on the right side of the front of the frame. Pressing it will cut off the power to all motors, sensors and solenoid valves.

[0020] 2. Transmission System

[0021] The transmission system runs through the frame and stops at the waiting area, including rubber tracks, a drive motor, and driven wheels;

[0022] The rubber track surface has anti-slip textures, 3-6mm wide, to accommodate the short side (usually 3-5mm) of the glass plate for transmission, ensuring that the glass plate moves forward in a "vertical" position (with the thinnest side in contact with the track);

[0023] The drive motor is a 12V DC geared motor with adjustable speed (3-8cm / s), which drives the track through a synchronous belt.

[0024] 3. Cleaning module

[0025] The cleaning module is sequentially configured along the transmission direction as follows: a pre-spray section (approximately 150mm in length), a water brush section (approximately 200mm in length), an alcohol spray section (approximately 150mm in length), a fine brush section (approximately 200mm in length), and a squeegee section (100-120mm in length).

[0026] Pre-spraying section: Equipped with four omnidirectional nozzles on the left and right, vertically aligned with the glass plate surface, the residual slurry on the glass plate surface is moistened by deionized water in the front storage tank;

[0027] Water brush section: includes 3 sets of symmetrically arranged vertical short-bristle brush rollers. The bristles are made of a mixture of nylon and polyurethane filaments. The initial spacing between the symmetrical brushes is 3-5mm. The bristles adapt to the 3-5mm thick glass plate through elastic deformation. The brush rollers are 85-90mm in diameter and fit tightly together to completely cover the cleaning area.

[0028] Alcohol spray section: Equipped with four universal nozzles on the left and right, vertically aimed at the glass plate surface, the alcohol in the rear storage tank dissolves residual organic matter.

[0029] Fine brushing section: includes 3 sets of vertically arranged short-bristle brush rollers with ultra-fine nylon bristles, a density of 1200-1500 bristles / cm², and a contact pressure of 0.3-0.5N, to achieve fine cleaning;

[0030] Squeegee section: Equipped with a silicone squeegee, 3-5mm thick, with a wedge-shaped entry end to prevent glass plates from getting stuck due to their similar size; a guide channel is provided below the squeegee to guide the scraped liquid to the drain.

[0031] 4. Guidance System

[0032] The guiding system consists of segmented polytetrafluoroethylene guide strips:

[0033] Guide strips are provided in the placement area, pre-spray section and alcohol spray section. The guide strips in the pre-spray section and alcohol spray section are triangular. The purpose is to ensure that the glass plate can be fully wetted without being blocked by the guide strips, and to save materials.

[0034] The guide strip is made of polytetrafluoroethylene (PTFE), with a smooth surface (friction coefficient ≤0.05), a width of approximately 40mm, and a height of 60-65mm;

[0035] The guide bar has multiple parallel holes at the bottom and is fixed to the bottom of the frame and both sides of the conveyor belt by bolts. The spacing of the guide bar can be adjusted by changing the bolt hole position (adjustment range 6-10mm) to adapt to glass plates of different thicknesses.

[0036] The bottom of the guide strip in the alcohol spray section must pass through a drainage ditch, and the inner side of the guide strip (the side in contact with the glass plate) is provided with a rounded corner (radius 1mm).

[0037] 5. Drainage system

[0038] The drainage system includes zoned sloping drainage channels and a collection drain outlet, adaptable to the liquid collection needs of multi-module spraying.

[0039] The sloping drainage channel is divided into sections: the first section extends from the water brushing area to the fine brushing area, with an angle of approximately 5°; the second section is located in the squeegee area, with an angle of approximately 30°.

[0040] Drainage outlet: Located at the junction of two drainage channels, it extends at an angle and can be fitted with a rubber liquid guide tube to divert waste liquid to the wastewater pool.

[0041] 6. Control System

[0042] The control system includes an Arduino controller, eight photoelectric sensors, eight solenoid valves, four sets of power batteries, and circuitry.

[0043] Photoelectric sensor arrangement:

[0044] Sensor #1: Located at the front end above the universal nozzle in the pre-spray section, triggering the start of the pre-spray unit;

[0045] Sensor #2: Located at the front end above the universal nozzle of the alcohol spray section, triggering the start of the alcohol spray unit;

[0046] Sensors #3 and #4 are arranged symmetrically with sensors #1 and #2.

[0047] Sensors #5-#8: Located at the front end of the brush section, above the battery, triggering brush activation.

[0048] Solenoid valve arrangement

[0049] Eight solenoid valves are installed at eight symmetrical universal nozzles and are controlled by a controller.

[0050] Solenoid valve control logic:

[0051] Solenoid valves 1#-4# (pre-spray): Open when sensors 1# and 3# detect the glass plate, and close after the glass plate leaves the water brush section (delay 1 second).

[0052] Solenoid valves 5#-6# (alcohol spray): open when sensors 2# and 4# detect the glass plate, and close after the glass plate leaves the fine brush section (delay 1 second);

[0053] Emergency Stop: The emergency stop button is directly connected to the main circuit of the control system. Pressing it will immediately cut off the power supply to all power modules.

[0054] 7. Place the drying module.

[0055] The drying module is positioned downstream of the wiper section (in the side panel area of ​​the area to be scooped):

[0056] Support rods: Symmetrically arranged on both sides of the side panel of the placement area, they provide support to prevent the glass from tipping over after it enters the pick-up area from the squeegee area. They are made of the same polytetrafluoroethylene material as the guide strips and are fixed with bolts.

[0057] Drying fan: A square hole is made in the middle of the side panel of the waiting area to place the fan. A stainless steel protective mesh is installed on the inside, and it can be turned on and off independently. Attached Figure Description

[0058] Figure 1 This is a schematic diagram of the overall structure of the present invention, including a frame (washing area box, placement area side plate, waiting area side plate, support base), a transmission system, a cleaning module (pre-spray section, water brush section, alcohol spray section, fine brush section, squeegee section) and a placement and drying module;

[0059] Figure 2 is a left view of the overall structure (side box perspective), showing the left-view positional relationship of the pre-spray nozzles, water brush rollers, silicone scraper conveyor belt and guide channel;

[0060] Figure 3 is a front view sectional view along the central axis, showing the layout of the conveyor belt, guide strips, photoelectric sensors, universal nozzles, brushes, liquid tank, battery, squeegee silicone plate, support rods, and drying fan.

[0061] Figure 4 is a schematic diagram of the side box slide rail installation design. This utility model achieves the effect of convenient disassembly and maintenance while ensuring sufficient support strength through the U-shaped slide rail docking design.

[0062] Figure 5 shows a partial three-view drawing of the drainage ditch design, illustrating the structural distribution, inclination, and outlet design of the drainage ditch. Detailed Implementation

[0063] A semi-automatic glass plate cleaning machine for button-type lithium batteries in a laboratory includes a frame, a transmission system, a cleaning module, a guiding system, a drainage system, a control system, and a placement and drying module. The frame includes a washing area box, a placement area side panel, a waiting area side panel, and a triangular support base. The two side boxes are connected to the central main body via U-shaped slide rails. The transmission system includes a rubber track with anti-slip texture and a drive motor. The cleaning module is arranged sequentially along the transmission direction as a pre-spray section, a water brush section, an alcohol spray section, a fine brush section, and a squeegee section. The pre-spray and alcohol spray sections are symmetrically equipped with liquid storage tanks and universal nozzles. The water brush and fine brush sections are symmetrically equipped with three sets of vertically arranged brush rollers. The brush rollers are made of a mixture of nylon and polyurethane filaments. The nylon filaments in the water brush section have a diameter of 0.1-0.2 mm, and the polyurethane filaments have a diameter of 0.15 mm, allowing the brush bristles to adapt to glass plates with a thickness of 3-5 mm through elastic deformation. The fine brush section uses ultra-fine nylon filaments with a diameter of 0.08-0.1 mm. The guiding system consists of segmented PTFE guide strips, with a rounded corner guide structure at the end near the feed inlet. The guide strips for the pre-spray and alcohol spray sections are triangular, while the water brush and fine brush sections do not have guide strips. The drainage system includes zoned inclined drainage channels and outlets, with the drainage channel inclination angle ranging from 5 to 30 degrees. The control system includes a controller, photoelectric sensors, and solenoid valves, controlling the on / off operation of the cleaning module via signals. The drying module includes support rods and a drying fan. The cleaning machine is equipped with an emergency shutdown button, allowing for rapid shutdown in case of an emergency.

[0064] 1. Preparation stage:

[0065] Add deionized water to the deionized water storage tank (8) and add 75%-90% laboratory alcohol to the alcohol storage tank (8);

[0066] Adjust the spacing of the guide strips (11) according to the thickness of the glass plate (e.g., for a 3mm thick glass plate, adjust the spacing to 3-4mm).

[0067] Check whether the drainage outlet (20) is properly connected to the guide rubber tube;

[0068] Turn on the main switch, the transmission system (5) starts, and the sensor (17) circuit starts.

[0069] 2. Feeding:

[0070] The operator places the used glass plate vertically at the inlet of the conveyor belt (guided by the rounded corner guide strip on the side plate of the placement area), and the glass plate enters the cleaning module under the drive of the belt.

[0071] 3. Step-by-step cleaning stage:

[0072] Pre-spraying: The glass plate triggers sensors 1# and 3# (17), the pre-spraying unit starts, and the universal nozzle (13) sprays water onto the plate surface to moisten the residual slurry;

[0073] Water brush: The glass plate triggers sensors #5 and #7, and the water brush section motor (12) starts (the upper and lower brushes rotate in opposite directions). The brush (9) peels off most of the slurry in a wet environment, and the waste liquid flows into the drainage ditch (19).

[0074] Alcohol spray: The glass plate triggers sensors #2 and #4, the alcohol spray nozzle (13) starts, alcohol covers the plate surface, dissolving residual organic matter;

[0075] Fine brushing: The glass plate triggers sensors #6 and #8, and the fine brush (9) of the fine brush section starts to clean the tiny residues on the basis of alcohol moistening, and the waste liquid flows into the drainage ditch;

[0076] Scraping: The glass plate enters the scraping section, and the silicone scraper (14) adapts to the plate surface to scrape off the residual water-alcohol mixture. The liquid flows into the drainage channel (19) through the guide channel.

[0077] 4. Place and dry:

[0078] After cleaning, the glass plate enters the placement area and is supported by the support rod (15) after being removed from the squeegee area;

[0079] Turn on the drying fan in advance (16), and after the alcohol evaporates quickly, the operator takes the glass plate out from the waiting area.

[0080] 5. Finishing operations

[0081] After batch cleaning, turn off all power, remove and clean the guide rubber tube.

[0082] Beneficial effects

[0083] Compared with the prior art, the present invention has the following beneficial effects:

[0084] 1. High cleaning precision: Through a step-by-step cleaning process of "pre-spraying - water brushing - alcohol spraying - fine brushing - squeegeeing", combined with flexible adaptive brushes (initial spacing 4mm, adaptable to 3-5mm glass plates), the residual amount on the glass plate surface is ≤0.05mg / cm², which meets the high precision requirements of button lithium battery coating experiments.

[0085] 2. High resource utilization: Compared with manual cleaning, the omnidirectional spray system can significantly reduce water and reagent consumption, making it energy-saving and environmentally friendly.

[0086] 3. High operating efficiency: Cleaning a single glass plate takes about 12-35 seconds, which is 4-10 times more efficient than traditional manual cleaning, reducing manpower input and adapting to the needs of multiple batches of laboratory experiments.

[0087] 4. Excellent safety performance: It is equipped with an emergency stop button to deal with emergencies such as equipment jamming and liquid splashing; the guide bar and support rod design can protect the glass plate from tipping over and being bumped.

[0088] 5. High adaptability: The spacing of the guide bars can be finely adjusted to fit small-sized coated glass plates commonly used in laboratories; the frame size meets the laboratory usage conditions.

[0089] In this embodiment, the key parameters are verified as follows:

[0090] When the transmission speed is 3-8 cm / s, a 150 mm wide glass plate takes 2.5-6.7 seconds to pass through the water brush section (200 mm), which is sufficient to remove conventional slurry residue.

[0091] For a 3-4mm thick glass plate, with brushes of 3-5mm initial spacing, bristles bent by 1mm, contact pressure of 0.5N, no scratches on the plate surface and cleaning residue ≤0.03mg / cm².

Claims

1. A semi-automatic glass plate cleaning machine for laboratory use of button lithium batteries, characterized in that: Includes a rack, transmission system, cleaning module, guiding system, drainage system, control system, and drying module. The frame includes a washing area cabinet (1), a placement area side panel (2), a waiting area side panel (3), and a triangular support base (4) to improve stability; The transmission system (5) includes a rubber track with anti-slip texture on its surface and a drive motor; The cleaning module is provided with a pre-spray section, a water brush section, an alcohol spray section, a fine brush section and a squeegee section in sequence along the transmission direction. The pre-spray section and the alcohol spray section are symmetrically provided with a liquid storage tank (8) and a universal nozzle (13). The water brush section and the fine brush section are symmetrically provided with three sets of vertically arranged brush rollers (9). The guiding system is a segmented polytetrafluoroethylene guide strip (11), with no guide strips in the water brush section and the fine brush section; The placement and drying module includes a support rod (15) and a drying fan (16).

2. The cleaning machine according to claim 1, characterized in that: The two side boxes of the frame are connected to the central main body by U-shaped slide rails (18).

3. The cleaning machine according to claim 1, characterized in that: The brush roller (9) of the water brush section is made of a mixture of nylon and polyurethane filaments, wherein the diameter of the nylon filaments is 0.1-0.2mm and the diameter of the polyurethane filaments is 0.15mm. The brush rollers are tightly fitted in the vertical direction and adapt to a 3-5mm thick glass plate through the elastic deformation of the bristles.

4. The cleaning machine according to claim 1, characterized in that: The brush roller (9) of the fine brush section is made of ultra-fine nylon filaments with a diameter of 0.08-0.1 mm, a density of 1200-1500 filaments / cm², and a contact pressure of 0.3-0.5 N.

5. The cleaning machine according to claim 1, characterized in that: The guide bar (11) has a rounded corner guide structure at one end near the feed port (7), and the guide bar (11) of the pre-spray section and alcohol spray section is triangular in design.

6. The cleaning machine according to claim 1, characterized in that: The drainage system includes a zoned inclined drainage channel (19) and a liquid outlet (20), with the drainage channel having an inclination angle of 5-30°.

7. The cleaning machine according to claim 1, characterized in that: The control system includes a controller, a photoelectric sensor (17) and a solenoid valve, which controls the switching of the cleaning module equipment via signals.

8. The cleaning machine according to claim 1, characterized in that: The machine is designed with an emergency shut-off button (6) to quickly stop the cleaning machine in case of an emergency.

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