摘要:
A raw material supply device includes a transport section that transports a raw material containing fibers and supplies the raw material to a processing section that processes the raw material, a stopper that blocks transport of a portion of the raw material transported by the transport section; and a controller that controls an operation of the stopper to adjust a supply amount of the raw material to the processing section. Further, it is preferable that the raw material supply device further includes a fixed-amount supply section that intermittently supplies the raw material transported by the transport section to the processing section by a first amount.
摘要:
A web manufacturing apparatus includes a defibration section that includes a rotating blade and is configured to defibrate a material containing fiber, a detection section configured to detect an electric charge amount of a defibrated material obtained by the defibration section, and a control section configured to control operation of the defibration section. The control section includes a first mode in which a revolution speed of the rotating blade is set based on a detection result of the detection section.
摘要:
A method and apparatus for spin forming a portion of a workpiece where the formed portion has a formed axis that is non-coaxial with the non-processed axis of the workpiece includes at least two rollers rotatable about a spin axis. Each one of the rollers is axially and radially offset from the others. An axial drive mechanism reciprocates the rollers or workpiece to causes the first roller and then the second roller to sequentially engage the workpiece. A pivoting mechanism rotates the rollers or workpiece about a pivot point from a first angular position to a second angular position during a forming operation to create a formed portion that is oblique to the non-processed portion or is substantially curved. A higher reduction ratio is achieved which enables improved efficiency. The present invention reduces floor space requirements as the forming operation may be completed on a single machine.
摘要:
Flanged structural products are rolled directly from rectangular slabs using only a universal mill having web rolls of fixed width corresponding to a selected finished web depth of the finished product. Original slab width is dependent upon the area ratio of the web and flanges in the intended finished product.Flanged structural products are rolled directly from rectangular slabs using only a universal mill having web rolls of fixed width corresponding to a selected finished web depth of the finished product. Original slab width is dependent upon the area ratio of the web and flanges in the intended finished product. As the slab thickness is reduced between web rolls, flange rolls simultaneously apply pressure to the longitudinal edge surfaces of the slab, moving material toward the slab's center. The edge surfaces of the slab become upset in each pass so that the slab thickness at the edges exceeds the original slab thickness. As rolling proceeds, the web rolls are brought closer together as are the flange rolls. At every set point of these rolls, the cross section of the now deformed slab maintains a fixed ratio of areas between the web and the flanges, the same area ratio as in the finished product. The web and flange rolls are moved in precalculated increments until the slab takes on a finished wide flange shape, ready for use in the construction industry.
摘要:
A reversing two-high sectional rolling mill stand with multiple pass rolls whose bearing members are adjustably guided in windows of posts of the rolling mill stand. The rolling mill stand is arranged together with additional rolling mill stands of the same type adjacent to each other in series transversely to the rolling direction. The rolls can be connected to drive units or to drive transmission elements arranged between the rolls of adjacent rolling mill stands. Adjustable and fixable guide members for the rolled material are arranged on both sides of the rolling gaps for each of the rolls. The guide members are adapted for the section passes and are mounted jointly on support members which can be connected to the rolling stand. Connecting tops are hinged to the beams of the rolling mill stand and can be slid upwardly and pivoted outwardly for removing the roll. The bearing members of the rolls are placeable into a support frame which can be placed between the beams of the stands and can be moved out from between the beams. The support members of the guide members for the rolled material can be placed in the support frame.
摘要:
A ROLLING MILL FOR PRODUCING ANNULAR SHAPES INCLUDES A ROLLER ROTATABLY MOUNTED IN THE ROLLING MILL FRAME AND A ROLLING MANDREL ASSOCIATED WITH THE ROLLER WHICH IS ROTATABLY MOUNTED AT EACH END. THE MANDREL CAN BE FED TOWARD AND AWAY FROM THE ROLLER AND IT INCLUDES ONE BEARING WHICH MAY BE CONNECTED TO OR REMOVED FROM THE ROLLING MANDREL TO FACILITATE THE LOADING AND UNLOADING OF THE WORKPIECE. BOTH OF THE ROLLING MANDREL BEARINGS ARE PIVOTAL IN A PLANE DEFINED BY THE CENTER LINES OF THE ROLLER AND THE ROLLING PLANE DEFINED BY THE CENTER LINES OF THE ROLLING MANDREL BEARINGS IS ADJUSTABLE IN RESPECT TO ITS SPACING AWAY FROM THE ROLLER AND INDEPENDENTLY OF THE FEEDING MOTION OF THE ROLLING MANDREL IN RESPECT TO THE ROLLER.
摘要:
This ring rolling mill includes a main roll and a mandrel that are brought close to or separated from each other, and roll a peripheral portion of a ring-shaped body in a radial direction of the ring-shaped body while the ring-shaped body is rotated along its peripheral direction in a state where the peripheral portion of the ring-shaped body is pinched in the radial direction between an outer peripheral surface of the main roll, and an outer peripheral surface of the mandrel. This ring rolling mill further includes a mechanism which inclines and supports the mandrel with respect to the rotation axis of the main roll such that the gap between the outer peripheral surface of the mandrel and the outer peripheral surface of the main roll differs on one side and on the other side as seen in a direction along the rotation axis of the main roll.
摘要:
This ring rolling mill includes a main roll and a mandrel provided so as to be capable of being brought close to or separated from each other, and rolling a peripheral portion of a ring-shaped body in a radial direction of the ring-shaped body while the ring-shaped body is rotated along its peripheral direction in a state where the peripheral portion of the ring-shaped body is pinched in the radial direction between an outer peripheral surface of the main roll which is rotationally driven, and an outer peripheral surface of the mandrel which is rotatable. This ring rolling mill further includes a mandrel inclining/supporting mechanism which inclines and supports the mandrel with respect to the axis of rotation of the main roll such that the gap between the outer peripheral surface of the mandrel and the outer peripheral surface of the main roll differs on one side and on the other side as seen in a direction along the axis of rotation of the main roll.