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JP-2026074688-A - dryness estimation device

JP2026074688AJP 2026074688 AJP2026074688 AJP 2026074688AJP-2026074688-A

Abstract

[Problem] To provide a drying estimation device that can suppress energy consumption during vacuum drying using a vacuum degreasing and cleaning device. [Solution] The drying estimation device 66 is applied to a vacuum degreasing and cleaning apparatus that performs a vacuum cleaning process and a vacuum drying process on a workpiece 14, and comprises an acquisition unit 71 that acquires cleaning information, which is information relating to the cleaning state of the workpiece 14 in the vacuum cleaning process, and an estimation unit 73 that estimates the drying result of the workpiece 14 in the vacuum drying process performed after the vacuum cleaning process based on the cleaning information. [Selection Diagram] Figure 3

Inventors

  • 松村 篤
  • 宮腰 昇
  • 渡辺 智紀
  • 園部 勝

Assignees

  • 株式会社不二越

Dates

Publication Date
20260507
Application Date
20241021

Claims (6)

  1. A drying estimation device applied to a vacuum degreasing and cleaning apparatus that performs a vacuum cleaning process and a vacuum drying process on a workpiece, An acquisition unit that acquires cleaning information, which is information relating to the cleaning state of the workpiece in the vacuum cleaning process, An estimation unit that estimates the drying result of the workpiece in the vacuum drying process performed after the vacuum cleaning process based on the cleaning information, A drying estimation device characterized by comprising the following features.
  2. The drying estimation apparatus according to claim 1, characterized in that the estimation unit estimates the probability of drying being completed and the time required for drying as the drying result.
  3. The drying estimation apparatus according to claim 1 or 2, characterized in that the cleaning information is information relating to at least one of the following indicators: the amount of temperature change of the cleaning agent supplied to the workpiece in the vacuum cleaning process, and the immersion time during which the workpiece is immersed in the cleaning agent in the vacuum cleaning process.
  4. The acquisition unit acquires work information, which is information relating to at least one of the following indicators: the mass of the work, the volume of the work, the surface area of the work, and the number of work pieces. The drying estimation apparatus according to claim 1 or 2, characterized in that the estimation unit estimates the drying result based on the work information and the cleaning information.
  5. A learning unit that uses the inflection point of the pressure in the space where the workpiece is placed during the vacuum drying process to train a model of the drying result of the workpiece corresponding to the vacuum drying process, Furthermore, The drying estimation apparatus according to claim 1 or 2, characterized in that the estimation unit estimates the drying result of the workpiece using the learned model.
  6. The drying estimation device according to claim 5, characterized in that the learning unit, when there is an inflection point during the steam exhaust stage in the vacuum drying process, uses the drying result as an estimated value of the probability of drying being completed obtained from the pressure fluctuation of the pressure, and when there is no inflection point during the steam exhaust stage, uses the drying result as a drying failure and trains the model accordingly.

Description

This invention relates to a drying estimation device applied to a vacuum degreasing and cleaning apparatus. For example, in heat treatment processes, workpieces may be cleaned using a vacuum degreasing and cleaning device as a pre-cleaning or post-cleaning step. For example, Patent Document 1 describes a vacuum degreasing and cleaning apparatus that performs shower cleaning, immersion bubbling cleaning, high-temperature spray cleaning, and vacuum drying. Japanese Patent Publication No. 2006-231272 This figure schematically shows an example of the overall configuration of a vacuum degreasing and cleaning apparatus equipped with a drying estimation device according to an embodiment of the present invention.Figure 1 is a cross-sectional view showing an example of the main body's configuration.This figure shows an example configuration of the drying estimation system in the vacuum degreasing and cleaning apparatus shown in Figure 1.This figure shows an example of a specific configuration of the first model in the estimation unit.This figure shows an example of a specific configuration of the second model in the estimation section of Figure 3.This figure shows an example of the pressure and pressure fluctuations inside the cleaning chamber during the vacuum drying process of the vacuum degreasing and cleaning apparatus shown in Figure 1.This figure shows another example of the pressure and pressure fluctuations inside the cleaning chamber during the vacuum drying process of the vacuum degreasing and cleaning apparatus shown in Figure 1.Figure 3 is a flowchart showing an example of the process flow for estimating the drying result in the drying estimation device.Figure 3 is a flowchart showing an example of the learning process flow in the drying estimation device. The embodiments of the present invention will be described below with reference to the attached drawings. To facilitate understanding of the explanation, the same reference numerals are used for identical components in each drawing whenever possible, and redundant explanations are omitted as appropriate. ===Implementation=== ≪Overall Structure≫ Figure 1 is a schematic diagram showing an example of the overall configuration of a vacuum degreasing and cleaning apparatus 100 equipped with a drying estimation device 66 according to an embodiment of the present invention. Figure 2 is a cross-sectional view showing an example of the configuration of the main body 10 in Figure 1. In pre- and post-cleaning procedures such as quenching, cleaning is performed using a vacuum degreasing cleaning device 100. As shown in Figures 1 and 2, the vacuum degreasing and cleaning apparatus 100 is provided with a main body 10. The main body 10 has a cleaning chamber 1 with opening/closing doors 3 at both ends, and a hollow cleaning agent tank 4 surrounding the cleaning chamber 1. Workpieces 14 can be loaded into and unloaded from the cleaning chamber 1 through the opening/closing doors 3. For example, multiple workpieces 14 can be loaded into the cleaning chamber 1. Three-stage cleaning is possible within the cleaning chamber 1: shower cleaning, immersion cleaning, and high-temperature spray cleaning. Furthermore, vacuum drying is possible within the cleaning chamber 1. That is, cleaning and drying are performed in the same chamber. Furthermore, a shower cleaning nozzle 5 is positioned at the top of the cleaning chamber 1, and a bubbling nozzle 6 connected to an N2 gas supply device 19 (note that the "2" in N2 gas is a subscript) is positioned at the bottom. A workpiece stand 18 is provided on the bottom surface of the cleaning chamber 1, and workpieces 14 are brought in and placed on it through the opening/closing door 3. The cleaning agent tank 4 contains a cleaning agent 17 as a cleaning liquid and is connected to the shower cleaning nozzle 5 via a shower line 16. The cleaning agent tank 4 is connected to a pump 15 via piping 30, and to the top of the cleaning agent tank 4 via piping 37 and piping 35. The lower part of the cleaning chamber 1 is connected to the cleaning agent tank 4 via piping 31 and an on-off valve 51. The lower part of the cleaning chamber 1 is connected to the waste liquid tank 11 via piping 31 and an on-off valve 52. The waste liquid tank 11 is connected to the distillation regenerator 9 via piping 32. The distillation regenerator 9 is connected to the regeneration tank 8 via piping 33. The regeneration tank 8 is connected to the shower cleaning nozzle 5 via piping 21. The distillation regenerator 9 is connected to the upper part of the detergent tank 4 via piping 36 and piping 35. The upper part of the cleaning chamber 1 is connected to the vacuum pump 7 via piping 34. The detergent tank 4 and the distillation regenerator 9 are connected to the heat exchanger 13 via piping 35, piping 36, and piping 37. The vacuum degreasing and cleaning apparatus 100 performs an exhaust process, a primary shower process, an immersion process, a secondary shower proce