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CN-121988541-A - Automatic packaging line weighing system

CN121988541ACN 121988541 ACN121988541 ACN 121988541ACN-121988541-A

Abstract

The invention relates to the technical field of automatic packaging systems, in particular to an automatic packaging line weighing system which comprises at least one pair of photoelectric switches, a weighing device, a sorting device and a distributed control system, wherein the photoelectric switches are used for detecting that product packages enter and leave a weighing area, the weighing device is used for weighing the product packages, the sorting device is used for removing overweight or ultralight product packages, the distributed control system is communicated with the photoelectric switches and the weighing device and is used for receiving and processing weight information of the product packages, the distributed control system is provided with a normal range of the weight of the product packages and is used for comparing the actual weight of the product packages with the normal range and executing operation based on a comparison result. The automatic packaging line can improve the operation efficiency and the weighing precision of the automatic packaging line, and ensure that the weight of product packages accords with the standard.

Inventors

  • WU XIAO

Assignees

  • 中国石油化工股份有限公司
  • 中国石化集团重庆川维化工有限公司

Dates

Publication Date
20260508
Application Date
20241108

Claims (9)

  1. 1. The automatic packaging line weighing system is characterized by comprising at least one pair of photoelectric switches, a weighing device, a sorting device and a distributed control system, wherein the photoelectric switches are used for detecting that product packages enter and leave a weighing area, the weighing device is used for weighing the product packages, the sorting device is used for rejecting overweight or ultralight product packages, the distributed control system is communicated with the photoelectric switches and the weighing device and is used for receiving and processing weight information of the product packages, and the distributed control system is provided with a normal range of the weight of the product packages and is used for comparing the actual weight of the product packages with the normal range and executing operation based on a comparison result.
  2. 2. The automatic packaging line weighing system according to claim 1, wherein the distributed control system is provided with an alarm module and a statistics module, wherein the alarm module is used for generating an alarm signal when the product packaging weight exceeds a normal range, and the statistics module is used for counting the alarm times and eliminating times of overweight or ultralight product packaging.
  3. 3. The automated packaging line weighing system of claim 2, wherein said distributed control system is further configured with an interlock control module for stopping packaging line operation and triggering an alarm when product package weight is outside of normal ranges.
  4. 4. The automated packaging line weighing system of claim 3, wherein said distributed control system further comprises a user interface module for displaying weighing information, alarm status, and operational prompts in real time.
  5. 5. The automated packaging line weighing system of claim 4 wherein said alarm module is configured with a multi-level alarm mechanism to trigger different levels of alarm signals based on the severity of weight deviations, said alarm signals including visual and audible alarms.
  6. 6. The automated packaging line weighing system of claim 1, wherein said distributed control system further comprises an intelligent analysis module that employs a machine learning algorithm to predict weighing data of a packaging line from historical weighing data of product packaging.
  7. 7. The automatic packaging line weighing system of claim 5, wherein said distributed control system is further configured with user-defined functions, and an operator can customize alarm limits and rejection criteria according to specific needs.
  8. 8. The automatic packaging line weighing system according to claim 6, wherein the intelligent analysis module comprises a data collection unit, a feature extraction unit, a model training unit, a prediction unit and a parameter adjustment unit, wherein the data collection unit is used for collecting and storing real-time weighing data and historical weighing data from a weighing device, the feature extraction unit is used for extracting features of the collected data, the model training unit is used for training a machine learning model according to the extracted features and the historical data, the prediction unit is used for applying a trained machine learning model to predict future weighing data trend in real time, and the parameter adjustment unit is used for dynamically adjusting weighing parameters according to a prediction result.
  9. 9. The automated packaging line weighing system of claim 8, further comprising a self-calibration module for automatically calibrating the weighing apparatus periodically or upon detection of a weighing deviation.

Description

Automatic packaging line weighing system Technical Field The invention relates to the technical field of automatic packaging systems, in particular to an automatic packaging line weighing system. Background In modern industrial automation production, automatic packaging lines have become an important means of improving production efficiency and product quality. The weighing system in the automatic packaging line detects the weight of the finished product packages through the rechecking weighing device, and ensures that the weight of each product package meets the standard. When the product weight exceeds the set range, the system eliminates overweight or ultralight packages. However, existing weighing systems present significant problems in the event of equipment failure. For example, when the rejecting device fails, the unqualified product packages cannot be effectively rejected, so that the weighing control system cannot generate an alarm and record the times of bag rejection. When the removing device fails, the craftsman cannot monitor and judge the running condition of the weighing system in time, and particularly, when the weight of the product package is seriously over-limited, the packaging line cannot be stopped, so that the quality and sales of the product are directly affected. With the rapid development of industry and intelligent manufacturing, the market places higher demands on the accuracy and reliability of automatic packaging lines. Disclosure of Invention The invention aims to provide an automatic packaging line weighing system which can improve weighing precision and stability, ensure that the product packaging weight meets the standard and improve the operating efficiency and the product quality of a production line. The invention provides a basic scheme of an automatic packaging line weighing system, which comprises at least one pair of photoelectric switches, a weighing device, a sorting device and a distributed control system, wherein the photoelectric switches are used for detecting that product packages enter and leave a weighing area, the weighing device is used for weighing the product packages, the sorting device is used for removing overweight or ultralight product packages, the distributed control system is communicated with the photoelectric switches and the weighing device and is used for receiving and processing weight information of the product packages, and the distributed control system is provided with a normal range of the weight of the product packages and is used for comparing the actual weight of the product packages with the normal range and executing operation based on a comparison result. Further, the distributed control system is provided with an alarm module and a statistics module, wherein the alarm module is used for generating an alarm signal when the product packaging weight exceeds a normal range, and the statistics module is used for counting the alarm times and eliminating times of overweight or ultralight product packaging. Further, the distributed control system is further provided with an interlocking control module, and the interlocking control module is used for stopping the operation of the packaging line and triggering an alarm when the product packaging weight exceeds a normal range. Further, the distributed control system further comprises a user interface module for displaying weighing information, alarm states and operation prompts in real time. Further, the alarm module is provided with a multi-stage alarm mechanism, and alarm signals of different levels are triggered according to the severity of the weight deviation, wherein the alarm signals comprise visual and audible alarms. Furthermore, the distributed control system is also provided with a user-defined function, and an operator can customize an alarm limit value and reject a standard according to specific requirements. The principle and beneficial effects of the invention are as follows: 1. And the weighing precision and stability are improved, namely each product package is weighed in real time by adopting a weighing device, and the distributed control system receives and processes weighing data and compares the weighing data with a set normal range. By the method, the system can accurately detect the weight of each product package, reduce errors, ensure that the weight of each package is in a standard range and improve the product quality. 2. The distributed control system is provided with an alarm module, and an alarm signal is generated when the product packaging weight exceeds a normal range. The multi-level alarm mechanism triggers alarm signals of different levels according to the severity of weight deviation, including visual and audible alarms. Meanwhile, the interlocking control module automatically stops the operation of the packaging line when detecting the serious overrun weight, and triggers an alarm to prevent more unqualified products from entering the market. 3. And the