Search

CN-116764865-B - Liquid filling port cleaning method and liquid filling port cleaning equipment

CN116764865BCN 116764865 BCN116764865 BCN 116764865BCN-116764865-B

Abstract

The application provides a liquid filling port cleaning method and liquid filling port cleaning equipment. The method for cleaning the liquid filling port of the battery comprises cutting a wiping material sheet with a preset size and shape from a wiping material roll, transferring the wiping material sheet to a wiping head, positioning the wiping head on a surface to be cleaned of the liquid filling port so that the wiping head contacts the surface to be cleaned with preset pressure, driving the wiping head to rotate around the axial center line of the wiping head at any angle relative to the surface to be cleaned to clean the surface to be cleaned, and recovering the wiping material sheet, wherein when the wiping material sheet is removed from the wiping head, pressure is provided for the wiping material sheet to drive the wiping material sheet to be separated from the wiping head. According to the cleaning method and the cleaning device for the liquid injection port, the wiping head can be driven to rotate at any angle in the cleaning process, and the wiping head can apply pressure to the surface to be cleaned in the cleaning process, so that the cleaning efficiency and the cleaning effect are improved.

Inventors

  • TAN XINYONG
  • WU CHAOYANG
  • TAO GUANGHUA
  • Liao Tongzhang

Assignees

  • 宁德时代新能源科技股份有限公司

Dates

Publication Date
20260505
Application Date
20220310

Claims (17)

  1. 1. The method for cleaning the liquid injection port is characterized by comprising the following steps of: positioning a wiping head on a surface to be cleaned of a liquid injection port, so that the wiping head contacts the surface to be cleaned with a preset pressure, wherein the wiping head is provided with a replaceable wiping material sheet; Driving a wiping head to rotate around an axial center line of the wiping head at any angle relative to the surface to be cleaned so as to clean the surface to be cleaned; During driving of the wiping head to rotate around the axial center line of the wiping head at an arbitrary angle relative to the surface to be cleaned, a predetermined negative pressure is applied to the wiping head, Monitoring the predetermined negative pressure, and when the predetermined negative pressure is outside a predetermined negative pressure range, Stopping the rotation of the wiping head, or Adjusting a predetermined negative pressure applied to the wiping head so that the predetermined negative pressure is within the predetermined negative pressure range, or Changing the wiping web of the wiping head; Wherein the method further comprises monitoring whether the wiper blade is detached from the wiper head or whether the wiper blade is mounted to the wiper head by monitoring the predetermined negative pressure during or before driving the wiper head to rotate at an arbitrary angle about the wiper head axial centerline relative to the surface to be cleaned; Further comprising providing a cleaning agent to the surface to be cleaned or to a wiper blade of the wiping head before and/or during rotation of the wiping head about the wiping head axial centerline at any angle relative to the surface to be cleaned; The concentration of the cleaning agent in the air is monitored and when the concentration exceeds a predetermined concentration, To give an alarm, and/or Adjusting the concentration of said cleaning agent in the air to be lower than said predetermined concentration, and/or The supply of the cleaning agent and the operation of the wiping head are stopped.
  2. 2. The method of claim 1, wherein the predetermined pressure is monitored and when the predetermined pressure is outside a predetermined pressure range, Stopping the rotation of the wiping head, or The position of the wiping head relative to the surface to be cleaned is adjusted so that the predetermined pressure is within the predetermined pressure range.
  3. 3. The method of claim 1, wherein the predetermined negative pressure is in the range of-60 Kpa to-99 Kpa.
  4. 4. A method of cleaning a liquid filling port according to claim 3, wherein the predetermined negative pressure range is determined according to any one of a target contaminant to be wiped, a wiping material, or a combination of two or more.
  5. 5. The method of claim 1, wherein whether the wiper blade is detached from the wiper head or whether the wiper head is mounted with the wiper blade is monitored by any one or a combination of two of: using a laser sensor; An ultrasonic sensor is utilized.
  6. 6. The method of any one of claims 1 to 5, further comprising the steps of: Transferring the wiping web to the wiping head before positioning the wiping head on the surface to be cleaned of the liquid filling opening, and/or The wipe web of predetermined size and shape is cut from a roll of wipe material prior to transferring the wipe web to the wiping head.
  7. 7. The method of cleaning a liquid inlet according to claim 6, wherein the wiping web is electrostatically charged before transferring the wiping web to the wiping head, and/or A predetermined negative pressure is applied to the wiping head while transferring the wiping web to the wiping head.
  8. 8. The method of claim 1, wherein the wiping head is provided with a replaceable wiping web, the method further comprising determining whether replacement of the wiping web is required based on any one or a combination of any two or more of the following parameters: a rotation angle of the wiping head or the wiping web; a rotational time of the wiping head or the wiping web; The number of liquid injection ports which are wiped by the wiping material sheet; the wipe web changes in weight due to wiping contaminants.
  9. 9. The method of claim 1, wherein the predetermined concentration is positively correlated with a lower explosion limit concentration of the cleaning agent.
  10. 10. The method of any one of claims 1 to 5, wherein the wiper head is provided with a replaceable wiper blade, the method further comprising recovering the wiper blade, and when the wiper blade is removed from the wiper head, providing pressure to the wiper blade to drive the wiper blade away from the wiper head.
  11. 11. The method of any one of claims 1 to 5, further comprising monitoring a degree of wear of the wiping head and replacing the wiping head when the degree of wear exceeds a threshold.
  12. 12. A liquid filling port cleaning device, comprising: a wiping head provided with a replaceable wiping web; A wiper head drive mechanism to which the wiper head is detachably connected, and A controller in communication with and/or electrically connected to the wiper head driving mechanism to control the wiper head driving mechanism to drive the wiper head such that the wiper head contacts the surface to be cleaned of the liquid injection port at a predetermined pressure and rotates the wiper head at an arbitrary angle with respect to the surface to be cleaned about an axial center line of the wiper head to clean the surface to be cleaned; a pneumatic pressure regulating mechanism communicatively or electrically connected to the controller, the controller being configured to control the pneumatic pressure regulating mechanism to apply a predetermined negative pressure to the wiping head during rotation of the wiping head at an arbitrary angle relative to the surface to be cleaned about an axial centerline of the wiping head; Wherein the controller is configured to monitor the predetermined negative pressure and when the predetermined negative pressure is outside a predetermined negative pressure range, Stopping the rotation of the wiping head, or Adjusting a predetermined negative pressure applied to the wiping head so that the predetermined negative pressure is within the predetermined negative pressure range, or The wiping material sheet of the wiping head is replaced, Wherein the controller is further configured to monitor whether the wiping web is detached from the wiping head or whether the wiping head is mounted with the wiping web by monitoring the predetermined negative pressure during or before driving the wiping head to rotate at an arbitrary angle about the wiping head axial center line with respect to the surface to be cleaned; further comprising a detergent supply device and a detergent monitoring device communicatively or electrically connected to the controller, and the controller is configured to: Controlling the detergent supply device to supply the detergent to the surface to be cleaned or the wiping web of the wiping head before and/or during the driving of the wiping head to rotate around the axial center line of the wiping head at any angle relative to the surface to be cleaned, and Controlling the detergent monitoring device to monitor the concentration of the detergent in the air and when the concentration exceeds a predetermined concentration, To give an alarm, and/or Adjusting the concentration of said cleaning agent in the air to be lower than said predetermined concentration, and/or And stopping the liquid injection port cleaning equipment.
  13. 13. The fill port cleaning apparatus of claim 12 wherein said controller is configured to monitor said predetermined pressure and, when said predetermined pressure is monitored to be outside a predetermined pressure range, Stopping the rotation of the wiping head, or Controlling the wiping head driving mechanism to adjust the position of the wiping head relative to the surface to be cleaned so that the preset pressure is within the preset pressure range.
  14. 14. The fill port cleaning apparatus of claim 12 or 13 further comprising a wiper blade transfer mechanism communicatively or electrically connected to the controller and the controller is configured to: and controlling the wiping web transferring mechanism to transfer the wiping web onto the wiping head before positioning the wiping head on the surface to be cleaned of the liquid injection port.
  15. 15. The fill port cleaning device of claim 14 further comprising a wiper material roll cutting mechanism communicatively or electrically connected to said controller and said controller is configured to: The wiping material roll cutting mechanism is controlled to cut the wiping material sheet of a predetermined size and shape from a wiping material roll prior to transferring the wiping material sheet to the wiping head.
  16. 16. The fill port cleaning apparatus of claim 12 wherein said wiper head is provided with a replaceable wiper blade, wherein said controller is configured to determine whether replacement of said wiper blade is required based on any one or a combination of any two or more of the following parameters: a rotation angle of the wiping head or the wiping web; a rotational time of the wiping head or the wiping web; The number of liquid injection ports which are wiped by the wiping material sheet; the wipe web changes in weight due to wiping contaminants.
  17. 17. The fill port cleaning apparatus of claim 12 or 13, further comprising a web recovery device communicatively or electrically connected to the controller, and wherein the controller is configured to: When the wiping web is removed from the wiping head, pressure is provided to the wiping web to drive the wiping web to be separated from the wiping head and recovered into the web recovery device.

Description

Liquid filling port cleaning method and liquid filling port cleaning equipment Technical Field The application relates to the field of batteries, in particular to a liquid injection port cleaning method and liquid injection port cleaning equipment. Background In the existing battery production and processing process, the liquid injection process is an indispensable link. In the battery liquid injection process, electrolyte is injected into the battery through a sealing channel artificially constructed between the liquid injection nozzle and the battery liquid injection port by the liquid injection cup, so that electrolyte is difficult to avoid remaining on the contact surface of the liquid injection nozzle and the liquid injection port of the battery, the remaining electrolyte not only can influence the subsequent processing quality and the appearance quality of the battery, but also can generate potential safety hazards when serious. Disclosure of Invention The application provides a method and equipment for cleaning a liquid injection port, which can solve the defects in the prior art. In a first aspect, the application provides a method for cleaning a liquid injection port, comprising the steps of positioning a wiping head on a surface to be cleaned of the liquid injection port, enabling the wiping head to contact the surface to be cleaned with preset pressure, and driving the wiping head to rotate around an axial center line of the wiping head at any angle relative to the surface to be cleaned so as to clean the surface to be cleaned. According to the technical scheme provided by the embodiment of the application, the cleaning range of the wiping head is enlarged and the cleaning effect of the wiping head is improved by rotating the wiping head at any angle relative to the surface to be cleaned. The design makes the wiping head drive the material sheet to rotate at any angle in the cleaning process, solves the problems that the wiping head can only rotate at a small angle and the effective wiping range is small in the related art, and realizes the dual improvement of the cleaning efficiency and the cleaning effect. The wiping head applies the preset pressure on the surface of the surface to be cleaned, which is favorable for removing stubborn stains on the surface to be cleaned, and can ensure the safety and reliability of the cleaning method. In some embodiments, the predetermined pressure is monitored and rotation of the wiping head is stopped when the predetermined pressure exceeds a predetermined pressure range, or the position of the wiping head relative to the surface to be cleaned is adjusted so that the predetermined pressure is within the predetermined pressure range. The pressure applied to the surface to be cleaned by the wiping head is monitored and regulated in real time, so that the cleaning effect can be further improved, the wiping safety is ensured, and the damage to the battery caused by wiping is avoided. In some embodiments, the predetermined pressure range is 1N to 10N. The cleaning method is ensured to be continuous, efficient and reliable by reasonably designing the preset pressure range. In some embodiments, the method further comprises applying a predetermined negative pressure to the wiping head during driving the wiping head to rotate at any angle relative to the surface to be cleaned about an axial centerline of the wiping head. The negative pressure applied to the wiping head can better adsorb and transfer the pollutants remained on the periphery of the liquid injection port, further expand the wiping range and improve the cleaning effect. Moreover, the application of the predetermined negative pressure to the wiping head can enable the wiping head to effectively adsorb the wiping web attached to the wiping head in the rotary wiping process, prevent the falling of the wiping web and further influence the use of the machine, ensure the reliability of the equipment and solve the problem that the web is easy to damage and fall off in the related technology. In some embodiments, the method further comprises monitoring the predetermined negative pressure and stopping rotation of the wiping head when the predetermined negative pressure exceeds a predetermined negative pressure range, or adjusting the predetermined negative pressure applied to the wiping head to bring the predetermined negative pressure within the predetermined negative pressure range, or replacing a wiping web of the wiping head. The wiping effect and the continuous reliability of the operation can be further ensured by monitoring and adjusting the predetermined negative pressure. In some embodiments, the predetermined negative pressure is in the range of-60 Kpa to-99 Kpa, and/or the predetermined negative pressure range is determined based on any one or a combination of two of a target contaminant to be wiped (e.g., a state of the contaminant, such as a liquid contaminant, a solid contaminant, etc.), a wiping mat