Mesh Belt Dryer Used In Papermaking Industry

The dryer unit 11 includes a housing 29 having opposed end walls 30 and 31 providing openings 32 and 33 respectively

. The mesh belt dryer conveyor assembly 34, which is housed within the dryer housing 29, is inclined at substantially the same angle as thewasher unit mesh belt dryer conveyor assembly 20 and includes opposed end portion 35 terminating inwardly of the housing 29; end portion 36 extending outwardly of said housing through the opening 33 and an intermediate portion 37 extending between said end portions35 and 36. Importantly, the opening 32 in the dryer housing end wall 30 receives the washer conveyor end portion 22 therethrough. This structural arrangement of parts provides that a workpiece W deposited on the right hand conveyor end portion 21 canbe passed through the washer and dryer combination and delivered into a collector device 50 provided at the left hand conveyor end portion 36. It will be understood that the mesh belt dryer conveyor assemblies 20 and 34 are aligned to provide upper mesh belt dryer surfacesin substantially the same plane, and that the dryer unit conveyor end portion 35 is sufficiently close to washer unit conveyor end portion 22 so that the workpiece W can readily be transferred from one mesh belt dryer assembly to the other.

The washer mesh belt dryer conveyor assembly 20 includes a pair of end rolls 43 and 44 carried in journal relation between a pair of opposed, longitudinally disposed side support arms 45 mounted to end walls 14 and 15. End roll 44 provides a drive roll andincludes a pair of sprockets 46 and 47 at the lower outer end. Sprocket 46 is connected by means of a chain 51 to a drive sprocket 52 attached to the shaft of a drive motor 53, which is mounted to the washer housing 13 as by a support bracket 54. Thewasher conveyor mesh belt dryer 28, in the preferred embodiment, is of an imperforate, elastomeric material and includes transverse strips 55 which separate the mesh belt dryer surface into sections each receiving a standard size of workpiece printing plate W. Intermediate,relatively short stop strips 57 are provided which act to retain the workpiece W on the mesh belt dryer 28. The upper edge of the mesh belt dryer 28 is overlapped by a sealing element 60 carried by the longitudinal support 45, which has the effect of precluding the entry ofwater to the underside of the mesh belt dryer 28.

As shown in FIG. 4 the dryer housing 29 includes a lid 40 having an ultraviolet lamp assembly 41 attached thereto in substantially parallel relation to the inclined dryer mesh belt dryer conveyor assembly 34 to direct radiation onto the upper surface of aperforate continuous mesh belt dryer 42. In addition to the ultraviolet lamp assembly 41 the drying of the workpiece W is expedited by means of a blower assembly, generally indicated by numeral 38, which includes a blower 39 directed to supply heated air acrossthe upper portion of said mesh belt dryer 42.

by: ericfu

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