Automatic continuous powder metering and feeding system and method for production of sealants

Abstract

The invention discloses an automatic continuous powder metering and feeding system and method for production of sealants, which belong to a feeding device for production of silicone sealants. The system comprises powder storage tanks, weightless balances, valves and a control module, wherein each weightless balance is communicated with one powder storage tank; each valve is arranged between one weightless balance and one powder storage tank; each weightless balance is provided with a weightless balance storage tank and a weight sensor; the weight sensors and the valves are connected with the control module; and the control module is used for comparing flow values (of charging holes) fed back from flow sensors in real time and set values preset in the control module to obtain real-time deviation values between the flow values and the set values, and adjusting output values of the charging holes of the weightless balances in real time according to the deviation values so as to keep the flow values and the set values consistent throughout. By virtue of a discharging interval value range preset in the control module, errors caused by change of stacking density of powder materials are reduced; and the automatic continuous powder metering and feeding system is particularly suitable for serving as a raw powder material feeding system on a silicone sealant production line.

Description

technical field [0001] The invention relates to a silicone sealant production and feeding device, more specifically, the invention mainly relates to a continuous powder automatic metering and feeding system and method for sealant production. Background technique [0002] At present, the multi-batch feeding method is adopted in the field of silicone sealant to produce silicone sealant, and the method of adding calcium carbonate powder raw materials is generally divided into quantitative additions, and most of the addition process is manually input, while the method of manually input powder raw materials There is a large difference in time and amount of addition. For example, there is an error in the time of adding raw materials each time, and there are factors such as feeding residues in the amount of feeding, which will cause differences in product quality between different batches, and make the production line produce products. Consistency of quality is not guaranteed. In ...

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Problems solved by technology

[0003] One of the purposes of the present invention is to solve the above-mentioned deficiencies, to provide a continuous powder automatic metering and feeding system and method for sealant production, in order to solve the problem of the inability to accurately control the addition of powder raw materials to the sealant production device in the prior art , there are fluctuations in the amount added, and there are technical problems such as deviations in measurement

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