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Device and method for micro-control of batches weighing device precision

A technology of batching materials and equipment, which is applied to the precision micro-control device of batching material weighing equipment and its control field, can solve problems such as slow mechanical response speed, and achieve the effect of adjustable speed and uniform conveying.

Inactive Publication Date: 2008-08-27
陕西彩虹电子玻璃有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the slow mechanical response speed of conveying powder, it does not give full play to the high precision of the electronic scale.

Method used

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  • Device and method for micro-control of batches weighing device precision
  • Device and method for micro-control of batches weighing device precision

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Experimental program
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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0011] Referring to Fig. 1, the present invention includes a hopper 2 with a feeding port 1 at the upper end and a silo gate 4 at the lower end, a fluidized pad 7 with micropores is provided on the inner wall of the hopper 2, and a discharge air hammer is also provided on the hopper 2 3. A screw conveyor 5 connected to the hopper 2 is provided at the lower end of the silo gate 4, and a leak-proof stop valve 6 is provided at the screw outlet of the screw conveyor 5, and a leak-proof stop valve 6 is provided at the outlet of the hopper 2 respectively. A screw conveyor sensor 13 and a leak-proof stop valve position sensor 14 for detecting the screw conveyor 5 and the leak-proof shut-off valve 6 are arranged, and a weighing bucket 11 with a weighing sensor 8 is arranged at the lower end of the leak-proof shut-off valve 6 to weigh The bucket 11 is also provided wi...

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Abstract

The invention relates to a micro-control device and a control method for the accuracy of an batch weighing device. Because the batches of substrate glass are characterized in a plurality of varieties, big difference between the proportions of the batches, high requirement on the error accuracy and high speed requirement on the batching efficiency, the invention consists of a series of mechanisms such as a fluidization cushion, a screw conveyor, a leakage proof stop valve, etc. on the base of meeting the requirements of the batch production process flow. An electrical system is adopted for the weighing control, and the control unit and a master station signal controller adopt the scheme of time sharing and synchronous scanning treatment, thereby meeting the fast-response requirement of the batch weighing device, the stability of the systematic adjustment and the accuracy of the batch weighing.

Description

technical field [0001] The invention relates to a control device and a control method for a weighing setting, and in particular to a precision micro-control device for batch material weighing equipment and a control method thereof. Background technique [0002] In the production process of liquid crystal substrate glass, there are high requirements on the ratio of raw material components and weighing accuracy. Production problems frequently occurred due to inaccurate weighing of raw materials. Therefore, all liquid crystal substrate glass manufacturers choose electronic scales with very high precision for weighing raw materials. However, after the accuracy of the electronic scale is improved, new requirements are put forward for the sensitivity of the conveying mechanical parts. The current accuracy is in The above electronic scales are the main electronic scales used in weighing liquid crystal substrate glass raw materials. However, due to the slow mechanical response ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G13/24G01G13/34C03B1/00
Inventor 薛新建侯延升
Owner 陕西彩虹电子玻璃有限公司
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