Wood veneer moisture detection equipment located on a production line
阅读：749发布：2022-03-08
专利汇可以提供Wood veneer moisture detection equipment located on a production line专利检索，专利查询，专利分析的服务。并且Improvements in on-line wood veneer moisture detection equipment involve closer and protective positioning of wire brush electrical sensors and very efficient utilization of fewer conveyor components. These improvements insure only one transverse moisture sensing zone will be created, initiating in turn only one signal from each respective portion of a wood veneer having a designated excessive moisture content. The signal is used to actuate an ink marker, and the excessive moisture is located and eliminated to subsequently avoid any formation of blows and/or blisters during subsequent hot press operations. Also the signal is used for directly and indirectly controling the speed of the dryer in a closed loop system.，下面是Wood veneer moisture detection equipment located on a production line专利的具体信息内容。
1. Wood veneer moisture detection equipment adapted for use along a production line to sense the moisture condition of wood veneers moving therealong comprising: a. a support for spanning the production line; b. multiple contact electrodes secured to the support to make substantially a full transverse contact with passing wood veneers moved by production line conveyors; and c. pick up electrode means spaced from the multiple contact electrodes to complete a single transverse zone in which moisture is being detected.
2. Wood veneer moisture detection equipment, as claimed in claim 1, wherein, guards are positioned near the multiple contact electrodes to prevent portions of wood veneers and veneers from damaging them and to prevent portions of these contact electrodes from contacting the production conveyor.
3. Wood veneer moisture detection equipment, as claimed in claim 1, having an electrical sensor system connected to the multiple contact electrodes and pick up electrode means.
4. Wood veneer moisture detection equipment, as claimed in claim 1, wherein the pick up electrode means is part of an upper hold down roller means located to serve with the production conveyor the function of pinch rollers to guide wood veneers by the multiple contact electrodes.
5. Wood veneer moisture detection equipment, as claimed in claim 1, wherein the pick up electrodes means are electrically shielded in part and spaced above the passing wood veneers follow-ing their contact with the multiple contact electrodes.
6. Wood veneer moisture detection equipment, as claimed in claim 5, having spaced transverse lifting means secured to the support to lift the wood veneers above the production line conveyor to be contacted by the multiple contact electrodes in a moisture detection zone determined by these electrodes and the pick up electrodes spaced above.
7. Wood veneer moisture detection equipment, as claimed in claim 6, wherein the spaced transverse lifting means are spaced non conductive wheels mounted on a shaft in turn positioned on the support.
8. Wood veneer moisture detection equipment, as claimed in claim 7, wherein the non conductive wheels are made of plastic.
9. Wood veneer moisture detection equipment, as claimed in claim 1 wherein the multiple contact electrodes are wire brushes.
10. Wood veneer moisture detection equipment, as claimed in claim 1, wherein the multiple contact electrodes are stainless steel wire brushes.
11. Wood veneer moisture detection equipment, as claimed in claim 9, wherein guards are positioned near the multiple wire brush contact electrodes to prevent portions of wood veneers and veneers from damaging them and to prevent portions of these wire brush contact electrodes from contacting the production conveyor.
12. Wood veneer moisture detection equipment, as claimed in claim 11, wherein the guards are non conductive.
13. Wood veneer moisture detection equipment, as claimed in claim 12, wherein the non conductive guards are made of plastic.
14. Wood veneer moisture detection equipment, as claimed in claim 11, wherein the guards are positioned to partially limit the otherWise free deflection arc of the wire brushes.
15. Wood veneer moisture detection equipment, as claimed in claim 11, wherein the guards are positioned on one side of the wire brushes to partially limit the otherwise free deflection arc of the wire brushes to prevent contact with the production line conveyor.
16. Wood veneer moisture detection equipment, as claimed in claim 3, wherein the electrical sensor system generates signals adapted to be used to control production line equipment such as a veneer dryer.
17. Wood veneer moisture detection equipment located on a plywood production line beyond a dryer to effectively mark wood veneers in places where excessive moisture is still present to avoid the possible occurrence of blows and blisters during subsequent hot press operations, having only one transverse moisture sensing zone to thereby improve the accuracy of the signalling and related marking components, comprising: a. a support spanning the production line; b. multiple stainless steel wire bristle contact sensing electrodes secured to the support to make side by side contacts forming together a substantially full overall transverse contact with passing wood veneers moved by the conveying forces of production line conveyors; c. pick up electrode means spaced from these multiple contact sensing electrodes to complete a single transverse zone in which moisture is being detected; and d. guiding means to control the moving veneers during sliding contact with multiple stainless steel wire bristled sensing electrodes so arranged to insure only a single transverse zone of moisture sensing is established.
18. Wood veneer moisture detection equipment, as claimed in claim 17, wherein the guiding means is an upper hold down roller means serving in conjunction with a production line conveyor to perform pinch roller functions in guiding the wood veneers during their contact with the steel wire bristled sensing electrodes.
19. Wood veneer moisture detection equipment, as claimed in claim 18, wherein the pick up electrode means is combined with the upper hold down roller means in establishing only a single transverse zone of moisture sensing.
20. Wood veneer moisture detection equipment, as claimed in claim 18, wherein guards are installed with the stainless steel wire bristle contact sensing electrodes to partially limit the otherwise free deflection arc of the bristles to prevent them from entering the operational area, where the upper hold down roller means is performing a pinch roller function, as they in turn are mounted in close to utilize effectively the wood veneer guiding control occurring as a result of this pinch roller function, thereby avoiding any necessity for having additional pinch roller means, which might cause the unwanted creation of another transverse zone of moisture sensing.
21. Wood veneer moisture detection equipment, as claimed in claim 17, wherein the guiding means is a group of spaced non conducting wheels capable of lifting the wood veneers clear of any production conveyor components during their moving contacts with the stainles steel wire bristle contact sensing electrodes.
22. Wood veneer moisture detection equipment, as claimed in claim 21, wherein guards are installed with the stainless steel wire bristle contact sensing electrodes to protect the wire bristles from injury to be otherwise possibly caused by wood veneers and pieces thereof.
23. Wood veneer moisture detection equipment, as claimed in claim 22, wherein the spaced non conducting wheels are made of plastic.
24. Moisture sensing apparatus adapted to sense the moisture condition of a material such as wood or the like travelling along a production path comprising support means located adjacent the path of travel of said material, moisture sensing means mounted on said support means and including flexible sensing electrode means adapted to contact said material as it passes thereby, and guard means mounted adjacent said flexible electrode means tO protect said electrode means from damage and to limit the rearward deflection of said electrode means.
25. Moisture sensing apparatus as defined in claim 24, said electrode means comprising a plurality of flexible conductors adapted to contact said material, and said guard means being mounted adjacent said conductors and limiting the arc through which said conductors may be deflected in a rearward direction along said path of travel.
26. Moisture sensing apparatus as defined in claim 25, comprising a plurality of said flexible sensing electrode means extending transversely across the path of travel of said material, and means for mounting said electrode means on said support means so that adjacent electrode means are isolated from each other.
27. Moisture sensing apparatus as defined in claim 25, said guard means being constructed of a non-conducting material.
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