摘要:
A method for cutting a ribbon of rubber-coated fabric includes dragging a free end of the ribbon past a working position of a punching device, forming a notch between two adjacent reinforcing cords of the ribbon using the punching device, moving a counter-blade of the punching device away from the working position, inserting at least one cutting blade through the notch, and performing first and second cuts of the ribbon. An associated apparatus includes a punching device and a cutting device. The punching device includes an incision tool, an abutting counter-blade, and control devices for moving the incision tool and the abutting counter-blade toward and away from the ribbon. The cutting device includes at least one cutting blade and a control device for moving the at least one cutting blade toward and away from the ribbon.
摘要:
A system and method is provided for producing window components using polymer based, metallurgy based, extruded, injection molded, or wooden lineal material. The lineal material is notched at intervals calculated to include a stretch treatment and folded to form window components such as window sashes, frames, and the like. Internal reinforcing members may be welded within the joints formed by folding at the notches. The notching system and method provide low cost, highly reliable, low defect production of multi-sided window components from a continuous piece of lineal material.
摘要:
An index cutter (I) forms a thumb index on a sheet. The index cutter (I) includes: a flat plate-shaped first base member (1) having a first blade portion; and a flat plate-shaped second base member (2) rotatable coupled to the first base member (1) and having a second blade portion. When the first base member (1) and the second base member (2) are rotated relatively to each other, a part of the sheet is cut by the first blade portion and the second blade portion.
摘要:
A finger-operated page turning device for stacked sheets, with methods, apparatus for forming the device as sets of offset voids or notches in alternating pages of a stack. The device is operated by simple movements of the thumb and/or fingers of a user's one hand while holding the stack in a curved configuration in the user's other hand. The apparatus includes rotary cutting machines for web sheet material, as well as both computer controlled and hand punches for individual sheets.
摘要:
A notching, shearing, and hemming tool constructed with a table which receives the roofing panel, at least two notching devices (notchers), a pan shear pivotally mounted on the table, and a hemming tool pivotally mounted on the table. To prepare a finished end piece of roofing panel, the roofing panel is placed in a panel alignment section at a first end of the tool. Each of the notching devices is movable, so that the relative position of the two notchers is variable. After notching, the roofing panel is moved to the pan shear, which is set at the proper angle by movement of a lever mechanism connected to the notchers. The roofing panel is sheared along a center line of the notched area. This cut leaves a tongue of the flat pan of the roofing panel exposed on each cut piece. Following the shearing operation, the user is left with two cut panels, each having an exposed tongue section an inch-and-a-half long extending from the pan section. Panels to be used in valleys or at eaves are then hemmed with the hemmer.
摘要:
The present invention provides a cutting tool which can easily prevent damage from occurring at the slit end formed on a sheet material, such as a corrugated sheet or the like. Such a cutting tool is a cutting tool for forming a slit on a sheet material, the cutting tool including: a cutting tool body 11, a grooving blade 13 for forming a slit, and a notching blade 12 for forming an end portion of a slit, wherein the cutting tool body 11 is formed in the shape of a fan, the grooving blade 13 is formed along either edge in the thickness direction of the cutting tool body 11, the notching blade 12 is provided with a semi-cylindrical blade edge and an attachment site capable of being detachably attached to one end of the cutting tool body 11, and the notching blade 12 is attached to one end of the cutting tool body 11 in such a manner that an outer curved surface of the blade edge is exposed to the outside rather than being in contact with one end of the cutting tool body 11, and the attachment site is configured such that the blade edge can be adjusted in the radial direction of the cutting tool body 11.
摘要:
A finger-operated page turning device for stacked sheets, with methods, apparatus for forming the device as sets of offset voids or notches in alternating pages of a stack. The device is operated by simple movements of the thumb and/or fingers of a user's one hand while holding the stack in a curved configuration in the user's other hand. The apparatus includes rotary cutting machines for the web sheet material, as well as both computer controlled and hand punches for individual sheets.
摘要:
A method for producing a metal strip which reduces the risk of the strip breaking over the course of a path, the strip being conveyed under stress in the strip direction and in which, in an upstream feed path of the metal strip, defects in the edges of the strip are detected and then measures are taken to reduce the risk of these defects causing the strip to break, in which method the strip is provided, in the region of the detected defect, with at least one notch in the strip direction, at a distance which is further away from the edge of the strip than the maximum dimension of the defect transversely with respect to the strip direction.
摘要:
A finished workpiece of malleable metal containing a saw cut which does not require deburring because the small burr on the exit side of the cut is concealed within a three sided notch. An elongated notch, closed on three sides, is formed on the side of the blank workpiece from which the saw blade exits. The depth of the cut is adjusted so that the bottom of the cut, together with its attendant burr, intersects with the notch. The burr is thus attached to a wall within the notch. The width of the notch is adjusted so that the anticipated tolerance in the depth of the cut (and thus the location of the bottom of the cut) is accommodated. The width of the notch is such that the bottom of the cut will intersect the notch at any location within the anticipated tolerance envelope. The depth of the notch is sufficient to conceal the burr.
摘要:
An apparatus is arranged to construct a reclosable zipper attached to a polymeric web. The zipper has a female profile with first and second elongated legs substantially perpendicular to the web and a channel therebetween. The apparatus includes a punch wheel having a first surface for supporting a first portion of the web on a first side of the zipper. The punch wheel includes a plurality of projecting punches for engaging the channel between the first and second legs of the female profile and for exerting a punch force through the first leg to remove slugs from the first leg. The apparatus includes a die wheel adjacent to and coaxially aligned with the punch wheel. The die wheel has a second surface for supporting a second portion of the web on a second side of the zipper and has a plurality of voids for receiving the punches. The punch wheel includes a cam for pushing the punch, and the first and second surfaces are tapered. Each of the punches can have an L-shaped cross section, with a bottom of the L shaped structure engaging the channel.