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Systems and methods for controlling a conveyor system during product changeovers

A conveying system and product technology, applied in general control system, control/regulation system, program control, etc., can solve problems such as uneven drying

Inactive Publication Date: 2016-08-17
USG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, when the gap between adjacent boards is too wide, the exposed edges of the boards become baked or toasted by the heated air, and the toasted edges tend to warp, bend, pop the boards due to uneven drying , disintegrate or distort

Method used

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  • Systems and methods for controlling a conveyor system during product changeovers
  • Systems and methods for controlling a conveyor system during product changeovers
  • Systems and methods for controlling a conveyor system during product changeovers

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Embodiment Construction

[0025] now refer to figure 1 , a current control system generally designated 10 and designed to control the line speed of a conveyor system generally designated 12 in a wallboard production line 14 . A mixer 16 configured for mixing and distributing the stock is arranged above the production line 14 comprising a transfer table 18 through which the web of face paper 20 moves on a transfer belt 22 in the direction of advance indicated by arrow T. A batch of mortar 24 of various compositions is conveyed for mixing for deposition on face paper 20 located on conveyor belt 22 .

[0026] The present control system 10 is specifically designed for the production of mortar / gypsum panels where various settable slurries are contemplated. In many applications, slurries are formulated to include various amounts of gypsum, fillers, water, accelerators, plasticizers, blowing agents, fillers, cement, and / or other ingredients well known in the art. The relative amounts of these ingredients, ...

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Abstract

A system is provided for controlling a line speed of a conveyor belt [22] of a conveyor system [12] during product changeovers in a wallboard production line [14]. A central control module [40] controls operation of a position sensor [36] and a database [42]. The position sensor [36] is located on top of a conveyor table [18] for providing positional information of a slurry head [34] formed in front of a forming plate [28] of the conveyor system [12]. A position detection module [48] receives a position signal [P] from the position sensor [36], and determines whether the slurry head [34] is located within a predetermined distance relative to the position sensor [36] based on the position signal [P]. A speed adjustment module [50] regulates the line speed of the conveyor belt [22] based on the position signal [P].

Description

[0001] cross reference [0002] This application claims priority to U.S. Provisional Application Serial No. 61 / 884,618, filed September 30, 2013, and U.S. Patent Application No. 14 / 481,358, filed September 9, 2014, the entire contents of which are incorporated by reference incorporated into this article. technical field [0003] The present disclosure relates generally to systems and methods for preparing cement or gypsum products, and more particularly to improved systems and methods for controlling the line speed of a conveying system during product changeover in a wallboard production line. Background technique [0004] Gypsum products, such as calcium sulfate dihydrate, are traditionally prepared using common base ingredients including plaster of paris, such as calcium sulfate hemihydrate or anhydrite, and water. Slurry mixers are typically used to supply agitated gypsum slurry to a wallboard production line. Several types of gypsum wallboard manufacture are described...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B17/00B28B19/00B28B11/24F26B15/12
CPCB28B11/24B28B17/0081B28B19/0092Y02P80/40F26B15/12G05B19/4189Y02P80/30G05B2219/2621Y02P90/02
Inventor S·M·黛拉盖洛R·维科夫
Owner USG CORP