摘要:
A non-contact heating apparatus uses a series of rotating magnets to heat, levitate, and/or move metal articles therethrough. A first series of rotating magnets heats the metal article to a desired temperature. A second series of rotating magnets levitates the metal article within the heating apparatus and maintains desired tension in the metal article, including urging the metal article through the heating apparatus. The heating apparatus can extend sufficiently far to soak the metal article at the desired temperature for a desired duration. The rotating magnets can be positioned outside of an electrically non-conductive, heat resistant chamber filled with an inert or mildly reactive gas, through which the metal article passes in the heating apparatus.
摘要:
Systems and methods of non-contact tensioning of a metal strip during metal processing include passing the metal strip adjacent a magnetic rotor. The magnetic rotor is spaced apart from the metal strip by a first distance. The systems and methods also include tensioning the metal strip through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal strip such that the metal strip is tensioned in an upstream direction or a downstream direction. In other aspects, rotating the magnetic rotor induces a magnetic field into the metal strip such that a force normal to a surface of the metal strip is applied to the metal strip.
摘要:
To provide a wire unwinding auxiliary device capable of, compared to a conventional device, effectively preventing an unwound wire material from getting twisted, entangled or flawed.A wire unwinding auxiliary device used for guiding an unwound wire material when unwinding the wire material which is wound in a coiled shape. The device comprises a plurality of rotation members 1a-1e on which the unwound wire material is set to run therethrough, and a non-rotation member 2 provided adjacent to at least a rotation member 1a through which the wire material passes first in the plurality of rotation members 1a-1e, thereby a running path of the wire material is stabilized between the non-rotation member 2 and the rotation member 1a.
摘要:
A coiling device (1) for coiling or uncoiling a strip (2), has at least one coiler (5), an optional drive roll (7) associated with the coiler (5), and a control device (10) for the coiler (5) and the optional drive roll (7). The control device (10) operates the coiling device (1) in such a way that a current strip temperature and/or a current microstructure property of the strip is/are determined by taking measurements or calculating a model, the control device (10) determines a current desired torque value (MH,MR) from the actual value or a variable derived therefrom, and the control device (10) operates the coiler (5) and the optional drive roll (7) by the current desired torque value (MH,MR). The coiling device (1) has the advantage of improving the coiling quality as well as the strip quality in terms of the strip thickness and width.
摘要:
The flat undersurface of the turntable is supported on three idler casters. The disc is driven on the periphery by a gear motor which has a drive wheel attached. The direction of rotation of the turntable can be reversed by changing the direction of the motor electrically and by moving the position of the motor so that it tends to drive into the disc as it turns thereby increasing the wheel pressure and friction as the load increases. A spring biases the drive wheel towards this position so that when the power is turned off the motor and gear train acts as a brake. A pair of guide wheels act with the drive wheel to center the turntable. The motor speed is controlled by changing the resistance of a potentiometer on a variable speed motor controller. The potentiometer is converted from a circular motion to a linear motion by a capstan and cable arrangement. A slide moves, when pulled by the stock. The slide pulls a cable that is wrapped around a capstan which is attached to the speed control potentiometer. The cable is pinned to the capstan and is weighted at the other end to provide a constant tension but variable speed supply of stock.
摘要:
A coil handling apparatus for association with a punch press in which a series of side-by-side cradle devices, each comprising a pair of spaced rigid plates with rollers therebetween, support a coil of strip material permitting the coil to rotate as strip material is removed therefrom, and means to clamp the free end of the strip material when material is not being removed from the supported coil.
摘要:
An apparatus for unwinding a roll of a thin belt-like discrete sheet material (hereinafter referred to as a "web") including paper, plastic film, fabric, metal and the like includes a cutter mechanism for cutting the forward end portion of the web of the web roll with the core and the forward end portion of the web being previously fixed in the winding direction, a nip mechanism for clamping the forward end portion of the web after the web is cut, and an unwinding shaft to be coupled to the core of the web roll, the cutter mechanism and the nip mechanism together with the unwinding shaft being linearly movable to and from a web roll storing position. The unwinding shaft position is movable, while the web roll supply position is stationary, so that the space for installing the apparatus can be minimized. Furthermore, the apparatus has a nip mechanism for clamping the forward end of the web, whereby the web roll can be delivered in a state where the forward end of the web is clamped.
摘要:
A spool for a coil of wire or other product includes a core about which a coil is wound and a housing disposed about the coil. The housing includes a pair of spaced disks to which the core is secured and a cylindrical section disposed between the outer peripheries of the spaced disks. The core consists of a tube and a connector which secures the tube to the disks, whereby the core is removable from the housing while leaving the coil intact within the housing. The two ends of the coil may be led to the center of the coil in such a manner that it is possible to carry out a continuous operation whereby the ends of one spool may be joined to the end of another spool, and this may be repeated as many times as necessary to join any number of spools as one continuous line so that as one coil is unwound, the next one automatically begins to unwind and so on down the line.
摘要:
With a device for controlling the drive of a reel, with a wire supply in the form of a coil of said wire supply, from which the wire, through interposition of a tensioning device, which is spring-pretensioned in one deflection direction and effective up to a maximum deflection, for approximated stabilization of the wire tension of a feed installation of the wire infeed of a downstream positioned wire processing machine, the velocity curve of the feed rate of the wire infeed in accordance with a preset velocity-time profile is controlled by a control unit of the wire processing machine, and whereby the curve of the rotation speed of the reel in accordance with a preset rotation speed-time profile is controlled by the drive control of the reel, whereby the drive control of the reel sets the rotation speed-time profile of the reel, with regard to the velocity-time profile of the feed rate, forward by a preset time interval.