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Variable speed feeding quantitative weighing system based on buoyant weighing and sensing principle

A weighing sensor and weighing sensor technology, applied in the direction of weighing, weighing equipment using fluid balance, measuring devices, etc., can solve the problems of difficult to improve measurement accuracy, zero drift, creep, etc., and achieve programming Convenience and quickness, improved reliability, and high measurement accuracy

Inactive Publication Date: 2013-01-16
孔令宇
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Problems solved by technology

However, the input-output function relationship of the resistance strain gauge sensor is nonlinear, and the use of adhesives to paste the strain gauges has technical defects such as creep, hysteresis, and zero-point drift caused by the adhesive, and its measurement accuracy is at the current technical level. It is difficult to improve

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  • Variable speed feeding quantitative weighing system based on buoyant weighing and sensing principle
  • Variable speed feeding quantitative weighing system based on buoyant weighing and sensing principle
  • Variable speed feeding quantitative weighing system based on buoyant weighing and sensing principle

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] figure 1 middle:

[0037] The adjustable door 5 of the feeding mechanism is used to regulate the size of the discharge flow, and the best solution of its helical twisted blade 3 is the combination of some single-piece twisted blades, so as to be easy to disassemble. The optimal solution for the feeder 6 is to use a seat-type electric vibration feeder. The electromagnet 8 for opening the discharge valve 10 is fixed on the weighing cylinder 7 , and the movable iron core of the electromagnet 8 is connected with the discharge valve 10 through the discharge valve lever system 9 . The position of the buoyancy load cell 12 is fixed, and the optimum position of its axis is in the vertical direction, and is parallel to the axis of the weighing cylinder 7, and its parallel distance is a set value. The dowel rod 13 is fixed on the weighing cylinder 7, an...

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Abstract

The invention belongs to the technical field of online quantitative weighing and an automatic control system thereof, and in particular relates to a variable speed feeding quantitative weighing system based on a buoyant weighing and sensing principle. A mechanical system of the variable speed feeding quantitative weighing system consists of a feeding mechanism, a feeding machine, a weighing cylinder mechanism, a leverage which transfers a quantitative weighing force value during the weighing, a discharging mechanism, a discharging cylinder, a dowel bar, a buoyant weighing sensor and weights which can adjust the quantitative weighing value; and a programmable logical control (PLC) measurement and control system of the variable speed feeding quantitative weighing system consists of a chord length (L) / instantaneous velocity (V) variation and voltage amplification module, a filter module, an analog (A) / digital (D) conversion module, a PLC central processing module, a display module, a relay part, a feeding mechanism and an electromagnet control device. The basic principle of the system is that after the buoyant weighing sensor compares the measured weighing value with a preset weighing value range, when the output electrical signal value reaches the preset signal value, the PLC measurement and control system can be used for accelerating and slowing down the feeding machine, and thus, the dual purposes of increasing the production efficiency and improving the weighing accuracy are realized.

Description

technical field [0001] The invention belongs to the technical field of on-line quantitative weighing and its automatic control system, in particular to a variable-speed feeding quantitative weighing system based on the principle of buoyancy weighing sensor. Background technique [0002] In modern industrial production, online real-time measurement to control the instantaneous weighing value of materials and online quantitative weighing of materials are key technologies for efficient production, quality control, cost reduction and consumer benefits. [0003] The current online quantitative weighing technology of materials, commonly used methods are: impulse method, volume method, radiation absorption method, mass method, gravity method, etc., among which the gravity method is commonly used. Except for the gravity method, the measurement accuracy of the above-mentioned online weighing methods is not high, and it is difficult to meet the needs of modern industrial production. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G5/00G01G5/06
Inventor 孔令宇孔德世
Owner 孔令宇
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