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Control method for improving performance of automatic weighing and bagging system

A technology of automatic weighing and system performance, applied in the direction of packaging, transportation and packaging, packaged item types, etc., can solve problems such as extra impulse, large error, and slow speed in the later stage

Inactive Publication Date: 2014-04-16
NANJING UNIV OF TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this improved method also has some defects: (1) There are still large errors; (2) Although the speed of the initial stage of filling is accelerated, the speed of the later stage is slower; (3) In the coarse and fine stages When switching, it will bring vibration interference and extra impulse, which will affect the control performance

Method used

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  • Control method for improving performance of automatic weighing and bagging system
  • Control method for improving performance of automatic weighing and bagging system
  • Control method for improving performance of automatic weighing and bagging system

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Embodiment Construction

[0046] Such as figure 1 As shown, when the automatic weighing and bag filling system is working, the material is first transported to the feeding hopper 1, and then the controller 5 controls the feeding hopper valve 2, opens the feeding hopper valve 2, and the material falls into the cloth bag 3 at a certain flow rate, and then During the feeding process, the weighing device 4 weighs according to a certain frequency, and sends the measured data to the controller 5 . In the traditional control method, when the difference between the measured weight and the set value of the filling bag weight is less than a certain threshold, the controller 5 controls the valve of the feeding hopper to close, and the bag filling is completed. After the bag filling is completed, the cloth bag 3 is sent to the subsequent The link is sealed and palletized.

[0047] Such as figure 2 As shown, it is a flow chart of the method provided by the present invention, and the automatic weighing bag fillin...

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Abstract

The invention provides a control method for improving performance of an automatic weighing and bagging system. The control method includes the steps of firstly, setting the feed speed, the sampling frequency and the number of sampling times, then, conducting function fitting on four closest sampling points to obtain forecast bagging weight reaching time, when a controller judges that the renewal stopping condition is met, if the renewal stopping condition can not be met, continuing to collect samples and conduct function fitting, and when discharge stopping time is reached, enabling the controller to control a hopper valve to stop discharging. By means of the control method, bagging can be conducted at the highest bagging speed within the range allowed by the system, and high bagging accuracy is achieved.

Description

technical field [0001] The invention relates to a control method of an automatic weighing bag filling system, in particular to a control method capable of improving the bag filling speed and accuracy of the automatic weighing bag filling system. Background technique [0002] The automatic weighing and filling bag system can fill the material according to the specified quality. Using it instead of traditional manual filling can not only greatly improve work efficiency, but also avoid the high-intensity work of the staff in a high-dust and strong stimulating environment. Widely used in chemical, feed, cement, logistics and other industries. The improvement of the performance of the automatic weighing and filling system has great engineering value and excellent economic prospects. Set an automatic weighing and filling bag system with 4 groups of F800 weighing controllers. 50KG fertilizer needs to be filled by F800 controllers in 10 seconds. If it is improved, the filling time ...

Claims

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Application Information

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IPC IPC(8): B65B1/34
Inventor 易辉刘宇芳薄翠梅袁宇浩钱顺华罗慧
Owner NANJING UNIV OF TECH
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