Abstract: A device for applying coiling-tension to a slit band sheet (1) includes: an upper structure (3) that is disposed on the upper side of a band sheet (2) which has been passed through a slitter line and slitted; and a lower structure (4) that is disposed on the lower side of the band sheet (2). The upper structure (3) includes two cooling rolls (6) over which an upper belt (5) is stretched, and an upper pressing part (7) that is disposed between the cooling rolls (6). Further, the lower structure (4) includes two cooling roller (9) over which a lower belt (8) is stretched, and a lower pressing part (10) that is disposed between the cooling rolls (9).

Abstract: A device for applying coiling-tension to a slit band sheet (1) includes: an upper structure (3) that is disposed on the upper side of a band sheet (2) which has been passed through a slitter line and slitted; and a lower structure (4) that is disposed on the lower side of the band sheet (2). The upper structure (3) includes two cooling rolls (6) over which an upper belt (5) is stretched, and an upper pressing part (7) that is disposed between the cooling rolls (6). Further, the lower structure (4) includes two cooling roller (9) over which a lower belt (8) is stretched, and a lower pressing part (10) that is disposed between the cooling rolls (9).

Abstract: An absorption apparatus 1 that is an example of a loop amount absorption apparatus of a slitter line to which the present invention is applied is disposed in a region of a loop pit 3 provided in the slitter line 2. The absorption apparatus 1 includes a negative pressure roll 9 that grips and conveys strips and an up-down moving device 10 that enables the negative pressure roll 9 to move up and down. By gripping and conveying the strips 14 by the negative pressure roll 9, two loops 15 of the strips are formed. The negative pressure roll 9 includes a rotating shaft 16, an inner cylinder 17, an intermediate cylinder 18, and a non-woven fabric laminated outer layer 19.

Abstract: A tabular negative pressure sheet 3 includes a baseplate 4, a sheet 5 with conduction grooves, a nonwoven cloth lamination outer layer 6, and a surface layer member 7. The baseplate 4 is a member as a base of the tabular negative pressure sheet 3. In addition, the sheet 5 with conduction grooves is a member disposed on the outer side of the baseplate 4, and on the surface thereof, negative pressure conduction grooves 8 are formed. In the tabular negative pressure sheet 3, negative pressure conduction grooves 8 are formed in a direction substantially perpendicular to a direction in which a strip 2 is threaded so that a negative pressure is generated as far as an end portion of the tabular negative pressure sheet 3.

Abstract: The negative pressure roll 1 is provided with a rotating shaft 2, an internal cylinder 3, an intermediate cylinder 4 and a multi-layered non-woven fabric laminated outer layer 5. Further, the rotating shaft 2 is a member at the center of rotation of the negative pressure roll 1 and connected to the internal cylinder 3 by a reinforcement circular disk 9. Still further, the internal cylinder 3 is formed in a tubular shape and rotates together with the rotating shaft 2. In addition, the rotating shaft 2 and the internal cylinder 3 correspond to a rotating main body. Further, the intermediate cylinder 4 is a cylindrical tubular material formed outside the internal cylinder 3 and rotates in association with the rotating shaft 2 and the internal cylinder 3. Still further, the multi-layered non-woven fabric laminated outer layer 5 is formed outside the intermediate cylinder 4 and given as a part at which the negative pressure roll 1 is in contact with the metal strip 13.

Abstract: An absorption apparatus 1 that is an example of a loop amount absorption apparatus of a slitter line to which the present invention is applied is disposed in a region of a loop pit 3 provided in the slitter line 2. The absorption apparatus 1 includes a negative pressure roll 9 that grips and conveys strips and an up-down moving device 10 that enables the negative pressure roll 9 to move up and down. By gripping and conveying the strips 14 by the negative pressure roll 9, two loops 15 of the strips are formed. The negative pressure roll 9 includes a rotating shaft 16, an inner cylinder 17, an intermediate cylinder 18, and a non-woven fabric laminated outer layer 19.

Abstract: The negative pressure roll 1 is provided with a rotating shaft 2, an internal cylinder 3, an intermediate cylinder 4 and a multi-layered non-woven fabric laminated outer layer 5. Further, the rotating shaft 2 is a member at the center of rotation of the negative pressure roll 1 and connected to the internal cylinder 3 by a reinforcement circular disk 9. Still further, the internal cylinder 3 is formed in a tubular shape and rotates together with the rotating shaft 2. In addition, the rotating shaft 2 and the internal cylinder 3 correspond to a rotating main body. Further, the intermediate cylinder 4 is a cylindrical tubular material formed outside the internal cylinder 3 and rotates in association with the rotating shaft 2 and the internal cylinder 3. Still further, the multi-layered non-woven fabric laminated outer layer 5 is formed outside the intermediate cylinder 4 and given as a part at which the negative pressure roll 1 is in contact with the metal strip 13.

Abstract: In a multiple endless belt type band sheet coiling tension applying apparatus in which a coiling tension is applied to slit band sheets a by a frictional force generated by slippage between belt pressing surfaces 4a, 5a and internal belt surfaces 1a of endless belts 1, a friction plate 8 made of a thin metallic sheet having heat conductivity equal to or better than that of the belt pressing units 4a, 5a is detachably installed on a front surface of each of the belt pressing units 4a, 5a.

Abstract: A number of closely notched slits 35 of a predetermined depth which have fine convex portions of the surface of each band sheet bitten thereinto and which are pulled to the convex portions and deformed to form cavities to generate negative pressure are provided at predetermined intervals over the entire peripheral length of the endless belt, over the entire width of the belt in a width direction to a longitudinal direction of the endless belt, on the outer surface 31a of the endless belt 3, touching each band sheet 4, which is constructed by laminating an outer surface layer 31 and an inner surface layer 33 using at least two-layer different materials.

Abstract: In a multiple endless belt type band sheet coiling tension applying apparatus in which a coiling tension is applied to slit band sheets a by a frictional force generated by slippage between belt pressing surfaces 4a, 5a and internal belt surfaces 1a of endless belts 1, a friction plate 8 made of a thin metallic sheet having heat conductivity equal to or better than that of the belt pressing units 4a, 5a is detachably installed on a front surface of each of the belt pressing units 4a, 5a.

Abstract: A number of closely notched slits 35 of a predetermined depth which have fine convex portions of the surface of each band sheet bitten thereinto and which are pulled to the convex portions and deformed to form cavities to generate negative pressure are provided at predetermined intervals over the entire peripheral length of the endless belt, over the entire width of the belt in a width direction to a longitudinal direction of the endless belt, on the outer surface 31a of the endless belt 3, touching each band sheet 4, which is constructed by laminating an outer surface layer 31 and an inner surface layer 33 using at least two-layer different materials.

Abstract: It is an object of this invention to eliminate the necessity of using pulleys which will bring about cost increase, trouble and reduction of service life, and give rise to the positional irregularity of the coil edge. Two sets of endless belts 1 are disposed one above the other, each set of endless belts being laterally arranged side by side. Pressure applying members 2 and 3 which hold each the endless belts 1 in a state that the endless belts freely circulate in an oval shape state, press the inner surfaces 1a of the endless belts 1, and are passed through the inner part of the endless belts 1. Each pressure applying member 2 (3) includes at least a belt pressing part 21 (31) which has a linear shaped side surface for directly pressing the inner surfaces 1a of the endless belts, and belt reversing parts 23 (33) being arcuate in cross section.

Abstract: It is an object of this invention to eliminate the necessity of using pulleys which will bring about cost increase, trouble and reduction of service life, and give rise to the positional irregularity of the coil edge.

Abstract: An expandable shaft comprises: a shaft body having a central axis and an outer cylindrical surface; a fluid passageway extending along the central axis of the shaft body; fluid introducing ports radially outwardly extending and communicating with the fluid passageway; a fluid filling to the fluid passageway and the fluid introducing ports; grooves extending on the outer cylindrical surface of the shaft body in a direction of the central axis of the shaft body, wherein each groove communicates with the respective introducing ports; and long lugs slidably inserted into the grooves, wherein the long lugs are elastically returned in the grooves when a fluid pressure by the fluid is eliminated, and the long lugs are protruded from the outer cylindrical surface when the fluid pressure is applied. Thus, the long lugs are able to stroke within the limits of the difference of the angle between the sloped bottom portion of the long lugs and the sloped locking surface of the grooves.

Abstract: An annular fluid type pusher for tightening a part on a shaft comprises, a body mounted on the shaft, a pushing piece for pushing the part with a fluid pressure, a sealed fluid path formed annular in the body for sealingly containing a fluid and slidably holding said pushing piece in part, a fluid pressure adjusting section for adjusting the fluid pressure, an indicator cylinder chamber communicated with the sealed fluid path, an indicator piston slidably provided in the cylinder chamber, a spring to urge the piston against the fluid pressure, and a thrust indicating bar. Thrust graduation lines have been marked on the thrust indicating bar. And one end portion of the thrust indicating bar is connected to the piston, and the other end portion is provided in such a manner as to be protruded in association with the movement of the piston which is slidably moved in proportion of the fluid pressure.

Abstract: A circular type tension applying apparatus for slit band plates comprises a plurality of pairs of upper and lower endless belts for interposing the respective slit band plate, an upper pressure applying member for allowing the upper endless belts to rotate and for applying pressure to the upper endless belts, and a lower pressure applying member for allowing the lower endless belts to rotate and for applying pressure to the lower endless belts. Each of the endless belts is able to rotate independently and circularly, and an outer surface of the endless belts being larger in friction than an inner surface of the endless belts. Both of the upper and lower pressure applying members are substantially circular in section. Furthermore, the endless belts have sufficient compressibility and restoration force in thickness direction so that tension is generated by resistance force from a deformation by compressive strain of the endless belts.