Drum lagging material and installation apparatus therefor

Abstract

Disclosed are lagging materials for use on a driven cylindrical pulley or drum for an industrial machine. A lagging material can comprise a seaming element along the cross-machine direction (CD) of each of the opposing ends of the lagging material for forming a seam for seaming opposing ends of a lagging material when brought together. A lagging material can also comprise coatings that increase the Coefficient of Friction of a lagging material when the lagging material is installed onto the drum such that no additional adhesive is required to keep the lagging on the drum circumference when in operation. Also described is an apparatus for installing an on machine seamable lagging including at least two opposed elongate members, such that when the elongate members are drawn together, the lagging material is stretched into a seamable position to be installed on the drum.

What is claimed is: 
     
         1 . An apparatus comprising:
 at least two opposed elongate members, each elongate member being structured to be placed longitudinally along the cross-machine direction (CD) of a drum or drive roll surface over opposing sides of a seaming area of a lagging material for installation of the lagging material on the drum;   a plurality of lagging material engagement members attached to each opposed elongate member; and   a tensioning member operably engaged with the opposed elongate members for drawing the opposed elongate members together in the machine direction;   wherein each lagging material engagement member is structured to engage the lagging material such that when the elongate members are drawn together, the lagging material is stretched into a seamable position to be installed on the drum surface.   
     
     
         2 . The apparatus of  claim 1 , wherein the elongate member comprises:
 a base portion and an upright portion.   
     
     
         3 . The apparatus of  claim 2 , wherein the each elongate member comprises an angle iron. 
     
     
         4 . The apparatus of  claim 1 , wherein the plurality of lagging material engagement members comprise:
 a plurality of hook elements attached to each elongate member.   
     
     
         5 . The apparatus of  claim 1 , wherein the plurality of lagging material engagement members further comprise:
 at least three lagging material engagement devices attached to each opposed elongate member.   
     
     
         6 . The apparatus of  claim 3 , the apparatus further comprising:
 the elongate member further comprising an angle iron; and   the plurality of hook elements are each attached to the angle iron.   
     
     
         7 . The apparatus of  claim 6 , wherein the plurality of lagging material engagement members further comprise:
 at least three hook elements attached to each angle iron.   
     
     
         8 . The apparatus of  claim 7 , wherein the apparatus comprises:
 a plurality of tensioning members positioned proximate to each of the hooks.   
     
     
         9 . The apparatus of  claim 8 , wherein the tensioning member comprises:
 a screw device.   
     
     
         10 . The apparatus of  claim 1 , wherein the tensioning member comprises:
 a plurality of tensioning members.   
     
     
         11 . The apparatus of  claim 10 , wherein the tensioning members are positioned proximate to the lagging material engagement members. 
     
     
         12 . The apparatus of  claim 1 , wherein the tensioning member comprises:
 a screw device.   
     
     
         13 . The apparatus of  claim 1 , wherein the tensioning member comprises:
 a winch and a come along.   
     
     
         14 . The apparatus of  claim 1 , wherein the apparatus comprises:
 the lagging material engagement members are being spaced at substantially regular intervals along the cross-machine direction (CD).   
     
     
         15 . The apparatus of  claim 1 , wherein each lagging material engagement member is positioned to engage the seaming area at corresponding openings on the lagging material. 
     
     
         16 . The apparatus of  claim 15 , wherein each lagging material engagement member comprises a hook positioned to engage the seaming area at a corresponding opening on the lagging material. 
     
     
         17 . The apparatus of  claim 16 , wherein the hooks are spaced at substantially regular intervals along the cross-machine direction (CD). 
     
     
         18 . The apparatus of  claim 17 , wherein at least one interval between the hooks is spaced at a different distance from a second interval between the hooks, the differential being configured such that it substantially maintains the regularity of the intervals. 
     
     
         19 . The apparatus of  claim 18 , wherein the differential is configured to create an offset from a tensioning member. 
     
     
         20 . The apparatus of  claim 1 , wherein each lagging material engagement member is substantially laterally paired on one cross machine direction (CD) edge of the lagging material in the machine direction (MD) with an opposing lagging material engagement member on the other cross machine direction (CD) edge of the lagging material on the opposing elongate member. 
     
     
         21 . An on-machine seamable lagging material for use on a cylindrical pulley or drum for an industrial machine, the lagging material comprising:
 a substrate;   a first coating on a drum-contact inner surface of the lagging;   wherein the coating increases the Coefficient of Friction of the lagging material when the lagging material is installed onto the drum such that no additional adhesive is required.   
     
     
         22 . The lagging material of  claim 21 , wherein the coating comprises an elastomeric coating made from a thermoplastic or thermoset material. 
     
     
         23 . The lagging material of  claim 22 , wherein the coating includes an elastomer selected from the group of a polyurethane, a rubber, silicone, and other known elastomeric materials 
     
     
         24 . The lagging material of  claim 21 , wherein the lagging material comprises:
 a seaming area for seaming opposing ends of the lagging material when brought together; and   a plurality of openings spaced along the cross-machine direction (CD) of the seaming area on each of the opposing ends of the lagging material, the openings configured to receive engagement members of an installation apparatus when the lagging material is placed around a drum.   
     
     
         25 . The lagging material of  claim 24 , wherein each opening is substantially laterally paired in the machine direction (MD) with an opposing opening on the opposing end of the lagging material. 
     
     
         26 . The lagging material of  claim 21 , wherein the lagging material is configured to be a lagging for a drive drum in a corrugator machine for the manufacture of corrugated packaging board. 
     
     
         27 . The lagging material of  claim 21 , wherein the drum contact surface coating increases the Coefficient of Friction of the lagging material when the lagging material is installed onto the drum such that no additional adhesive is required. 
     
     
         28 . The lagging material of  claim 21 , wherein the lagging comprises:
 a second coating on the opposite outer surface of the substrate.   
     
     
         29 . The lagging material of  claim 28 , wherein the first and second coatings are the same material. 
     
     
         30 . The lagging material of  claim 28 , wherein the first and second coatings are different materials. 
     
     
         31 . The lagging material of  claim 28 , wherein the average static Coefficient of Friction when static is Ks=2.81 and the average dynamic Coefficient of Friction (CoF) is Kd=2.44 for the coated belt and the paper board it is pulling. 
     
     
         32 . The lagging material of  claim 21 , wherein the average static Coefficient of Friction (CoF) is Ks=1.58 and the average dynamic Coefficient of Friction is about Kd=1.41 for a steel drum. 
     
     
         33 . The lagging material of  claim 21 , wherein the lagging material substrate comprises at least one layer selected from the group of woven or non-woven fibers and/or yarn or spiral links. 
     
     
         34 . The lagging material of  claim 33 , wherein the substrate fibers and/or yarns are selected from the group of: natural fibers and/or yarns and synthetic fibers and/or yarns. 
     
     
         35 . The lagging material of  claim 33 , wherein substrate the comprises:
 at least two layers.   
     
     
         36 . The substrate of  claim 35 , wherein the substrate comprises:
 a woven substrate layer;   and a fiberous batt material layer.   
     
     
         37 . The lagging material of  claim 21 , wherein the uncoated lagging material includes a weight of from about 6.3 oz/ft2 (1.9 kg/m2) to about 10.5 oz/ft2 (3.2 kg/m2) and a caliper (thickness) of from about 0.162 inches (4.1 mm) to about 0.270 inches (6.9 mm). 
     
     
         38 . The lagging material of  claim 37 , wherein the uncoated lagging material includes a weight of approximately 7 oz/ft2 (2.1 kg/m2) and a caliper (thickness) of approximately 0.180 inches (4.6 mm). 
     
     
         39 . The lagging material of  claim 21 , wherein the coated lagging material has only the first coating on the drum contact side, and comprises a weight of from about 10.7 oz/ft2 (3.3 kg/m2) to about 17.9 oz/ft2 (5.4 kg/m2) and a caliper (thickness) of from about 0.192 inches (4.9 mm) to about 0.320 inches (8.1 mm). 
     
     
         40 . The lagging material of  claim 39  wherein the coated lagging includes a coated weight of about 11.9 oz/ft2 (3.6 kg/m2) and a caliper of about 0.213 inches (5.4 mm). 
     
     
         41 . The lagging material of  claim 28 , wherein the coated lagging material comprises a weight of from about 15.1 oz/ft2 (4.6 kg/m2) to about 25.2 oz/ft2 (7.7 kg/m2) and a caliper (thickness) of from about 0.221 inches (5.6 mm) to about 0.368 inches (9.3 mm). 
     
     
         42 . The lagging material of  claim 41  wherein the coated lagging includes a coated weight of about 16.8 oz/ft2 (5.1 kg/m2) and a caliper of about 0.245 inches (6.2 mm). 
     
     
         43 . An on machine seamable lagging material for use on a cylindrical pulley or drum for an industrial machine, the lagging material comprising:
 a substrate;   a coating on the drum contact inner surface of the substrate; and   a seaming element along the cross-machine direction (CD) of each of the opposing ends of the lagging material for forming a seam for seaming opposing ends of a lagging material when brought together.   
     
     
         44 . The lagging material of  claim 43 , wherein the lagging material comprises:
 a plurality of openings spaced along the cross-machine direction (CD) of a seaming area on each of the opposing ends of the lagging material, the openings configured to receive engagement members of an installation apparatus when the lagging material is placed around a drum/roll circumference.   
     
     
         45 . The lagging material of  claim 44 , wherein the lagging material comprises:
 each opening being substantially laterally paired in the machine direction (MD) with an opposing opening on the opposing end of the lagging material.   
     
     
         46 . The lagging material of  claim 43 , wherein the lagging material is configured to be a lagging for a drive drum in a corrugator machine for the manufacture of corrugated packaging board. 
     
     
         47 . The lagging material of  claim 43 , comprising:
 a first coating on a drum-contact inner surface of the substrate; and wherein the drum contact surface coating increases the Coefficient of Friction of the lagging material when the lagging material is installed onto the drum such that no additional adhesive is required.   
     
     
         48 . The lagging material of  claim 43 , wherein the coating comprises an elastomeric coating made from a thermoplastic or thermoset material. 
     
     
         49 . The lagging material of  claim 48 , wherein the coating includes an elastomer selected from the group of a polyurethane, a rubber, silicone, and other known elastomeric materials 
     
     
         50 . The lagging material of  claim 43  comprising:
 a second coating on the belt contact surface of the substrate. 
 
     
     
         51 . The lagging material of  claim 43 , wherein the average static Coefficient of Friction (CoF) is about Ks=1.58 and the average dynamic Coefficient of Friction is about Kd=1.41 for a steel drum. 
     
     
         52 . The lagging material of  claim 50 , wherein the first and second coatings are the same material. 
     
     
         53 . The lagging material of  claim 50 , wherein the first and second coatings are different materials. 
     
     
         54 . The lagging material of  claim 43 , wherein the substrate comprises at least one layer selected from the group of woven or non-woven fibers and/or yarns or spiral links. 
     
     
         55 . The lagging material of  claim 48 , wherein the lagging material substrate comprises fibers and/or yarns selected from the group of: natural fibers and/or yarns and synthetic fibers and/or yarns. 
     
     
         56 . The lagging material of  claim 54 , wherein the substrate comprises:
 at least two layers.   
     
     
         57 . The substrate of  claim 56 , wherein the substrate comprises:
 a woven substrate layer;   and at least one fiberous batt material layer.   
     
     
         58 . The lagging material of  claim 43 , wherein the uncoated lagging material includes a weight of from about 6.3 oz/ft2 (1.9 kg/m2) to about 10.5 oz/ft2 (3.2 kg/m2) and a caliper (thickness) of from about 0.162 inches (4.1 mm) to about 0.270 inches (6.9 mm). 
     
     
         59 . The lagging material of  claim 58 , wherein the uncoated lagging material includes a weight of approximately 7 oz/ft2 (2.1 kg/m2) and a caliper (thickness) of approximately 0.180 inches (4.6 mm). 
     
     
         60 . The lagging material of  claim 43 , wherein the coated lagging material has only the first coating on the drum contact side, and comprises a weight of from about 10.7 oz/ft2 (3.3 kg/m2) to about 17.9 oz/ft2 (5.4 kg/m2) and a caliper (thickness) of from about 0.192 inches (4.9 mm) to about 0.320 inches (8.1 mm). 
     
     
         61 . The lagging material of  claim 60  wherein the coated lagging includes a coated weight of about 11.9 oz/ft2 (3.6 kg/m2) and a caliper of about 0.213 inches (5.4 mm). 
     
     
         62 . The lagging material of  claim 50 , wherein the coated lagging material comprises a weight of from about 15.1 oz/ft2 (4.6 kg/m2) to about 25.2 oz/ft2 (7.7 kg/m2) and a caliper (thickness) of from about 0.221 inches (5.6 mm) to about 0.368 inches (9.3 mm). 
     
     
         63 . The lagging material of  claim 62  wherein the coated lagging includes a coated weight of about 16.8 oz/ft2 (5.1 kg/m2) and a caliper of about 0.245 inches (6.2 mm). 
     
     
         64 . A method to install an on machine seamable coated lagging comprising:
 positioning opposing ends of the coated lagging material around a drum for seaming, the coated lagging having a first coating on the drum contact side;   attaching an installation device to a plurality of openings on each opposing end of the lagging material, the openings configured to receive engagement members of the installation apparatus when the lagging material is placed around a drum;   bringing the ends of the lagging material into a seaming position with the installation apparatus; and   seaming the lagging material onto the drum,   whereby the installation of the lagging material on the drum stretches the lagging material onto the drum and the lagging has a Coefficient of Friction such that no additional adhesive is required.   
     
     
         65 . The method of  claim 64 , further comprising:
 positioning at least two opposed elongate members longitudinally along the cross-machine direction (CD) of a drum over the opposing sides of a seaming area of the lagging material;   attaching a plurality of lagging material engagement members attached to each opposed elongate members along the cross-machine direction (CD) to the plurality of openings, the openings being correspondingly spaced along the cross-machine direction (CD) of the seaming area on each of the opposing ends of the lagging material; and   bringing the ends of the lagging material together by operating a tensioning member operably engaged with the opposed elongate members for drawing the opposed elongate members together in the machine direction;   wherein each lagging material engagement member is structured to engage a seaming area of the lagging material such that when the elongate members are drawn together, the lagging material is stretched into a seamable position to be installed on the drum.   
     
     
         66 . The method of  claim 64 , further comprising:
 attaching at least three of the lagging material engagement devices to at least three of the correspondingly spaced openings to each of the opposing ends of the lagging material.   
     
     
         67 . The method of  claim 66 , wherein the lagging material engagement members further comprise hook elements. 
     
     
         68 . The method of  claim 64 , the method further comprising:
 operating a plurality of tensioning members positioned proximate to the engagement members.   
     
     
         69 . The method of  claim 64 , wherein the lagging material engagement members are spaced at substantially regular intervals along the cross-machine direction (CD). 
     
     
         70 . The method of  claim 67  the method further comprising:
 engaging each hook at a corresponding opening on the lagging material. 
 
     
     
         71 . The method of  claim 64 , the method further comprising:
 engaging each lagging material engagement member with the openings on one end of the lagging material, and   engaging each lagging material engagement member with the openings laterally positioned in machine direction (MD) on the opposing end of the lagging material.   
     
     
         72 . The method of  claim 64 , the method further comprising:
 positioning the tensioning member between each of the engagement members such that the tensioning member can operably engage the engagement members;   engaging the tensioning member with at least one opening on each engagement member; and   operating the tensioning member.   
     
     
         73 . The method of  claim 64  wherein the lagging material comprises a second coating on the belt contact side of the lagging, which has a Coefficient of Friction such that there is no slippage between a belt and the drum. 
     
     
         74 . The lagging material of  claim 28  wherein the lagging material has a Coefficient of Friction such that there is no slippage between a belt and the drum. 
     
     
         75 . The lagging material of  claim 51  wherein the lagging material has a Coefficient of Friction such that there is no slippage between a belt and the drum. 
     
     
         76 . The lagging material of  claim 28 , wherein the average static Coefficient of Friction (CoF) is Ks=1.58 and the average dynamic Coefficient of Friction is about Kd=1.41 for a steel drum. 
     
     
         77 . The lagging material of  claim 50 , wherein the average static Coefficient of Friction (CoF) is about Ks=1.58 and the average dynamic Coefficient of Friction is about Kd=1.41 for a steel drum.