Abstract: The invention relates to a cutting device for slicing food products, comprising a driven circular blade rotating about a blade axis revolving on a track about a center axis, and a cover element rotatable relative to the circular blade on the side of the circular blade facing away from a product to be sliced. A holding device is provided that is designed for counteracting the self-rotation of the cover element about the blade axis.
Abstract: A method for cutting a coil conductor in which a halted conductor wire 2 to be formed into a coil is served by cutting edges 5A, 5B, while simultaneously advancing a cutting edges downstream in the feed direction of the wire. Thus, a pushing back force against the conductor wire and its attendant deformation is prevented when cutting it, whereby the dimensions of the conductor wire are stabilized.
Abstract: An apparatus for cutting a coil conductor in which a halted conductor wire 2 to be formed into a coil is severed by cutting edges 5A, 5B, while simultaneously advancing the cutting edges downstream in the feed direction of the wire. Thus, a pushing back force against the conductor wire and its attendant deformation is prevented when cutting it, whereby the dimensions of the conductor wire are stabilized.
Abstract: A method and apparatus for stamping a strip of material to prevent slug "back out" is disclosed. The stamping machine has a punch which moves through a first stroke and a second stroke. A slug receiving opening is provided in the die. The punch is moved during the first stroke into engagement with the strip of material. A slug is punched from the strip of material to form an opening therein. The punch is then moved through a second stroke, in which the punch is moved through the opening in the strip of material. As this occurs, the punch forces a volume of gas ahead of the punch, so that the volume of gas cooperates with the slug to force the slug into the slug receiving opening.
Abstract: Apparatus for cutting the leading and trailing edges of an opaque sheet angling initially at an offset angle with respect to a cutting blade includes a pair of light sources and a pair of light sensors opposite said light sources. An opaque sheet to be cut is moved at right angles to a line extending between said pairs of light source and sensors to bring said article edges to and past said pairs of light sources and sensors. The sensors produce article edge angle indicating signals which indicate the time difference each edge reaches said pair of sensors. Means are provided responsive to said signals which adjust the blade angle to be parallel to each article edge so the blade cuts parallel to each edge. The angle indicating could be signals which are a direct measure of the difference in times each edge reaches the sensors.
Abstract: The invention provides a method of working with a travelling head press to cut rows of identical workpieces across wide sheet material. The combination of the press and the means feeding the sheet material through it is so arranged that rows of workpieces can be cut on the bias along transverse lines at an angle other than a rightangle to the direction of feed of the material, for best utilization of the material, and this bias angle can be changed to suit different workpiece shapes and different cutting tools without reorientation of the press base. In one embodiment a press is used which is constructed to swivel on its base; and in another embodiment the sheet material is fed forward by the feeding means by equal incremental amounts between successive cutting strokes during the cutting of a row of workpieces.
Abstract: A blanking shear machine has a rotatable upper turret having a holder for an upper blade. The upper blade has two contiguous sides which form a right angle therebetween. A rotatably mounted lower turret has a holder for a lower blade which corresponds to the upper blade. Means for clamping and positioning a workpiece are provided between the upper and lower turrets. The turrets are rotated to position the blades to provide the desired cut. A plurality of strikers are provided above the upper turret at four positions above the upper blade at which the contiguous sides of the blade are aligned with the X-axis and Y-axis coordinates. Means for actuating the strikers are provided to lower the upper blade to engage the lower blade, shearing the workpiece between the two blades.
Abstract: A die cutting press for processing web material has a registration system which is operable to provide precise alignment of a shiftable die cutting unit along two axes during the time that the web material is advanced along a third axis toward the die unit, so that as soon as a defined area of the web reaches the die unit, the press can be immediately actuated to subject the web to the die cutting operation. In preferred forms of the invention, an indicator strip is printed on the length of the web and is detected by two spaced photo optical sensors movable with the die unit. A first control means, coupled to the sensors, selectively actuates in stepwise fashion either of two servomotors as may be necessary to bring the die unit into registration with defined web areas in a direction laterally of the web length (which may be defined as a Y axis) as well as a rotative orientation with respect to the defined web areas about an upright axis (which may be termed the .theta. axis).
Abstract: Precut pieces of wood of like configuration are stacked in a hopper from the lower end of which they are advanced one-by-one by a reciprocable pusher onto a horizontally disposed work station. As soon as a workpiece is positioned on the station it is automatically clamped into place, after which two rotary saws, which are mounted adjacent opposite ends of the station, are reciprocated from retracted to advanced positions, during which movement they cut away portions of the workpiece at opposite ends thereof. As soon as the saws have advanced passed the workpiece, they are retracted slightly away from opposite ends of the workpiece, so that they will not reengage the workpiece when they return to their starting positions. When the saws are retracted the now-cut workpiece is automatically released and then ejected from the work station, after which a cycling relay automatically causes another workpiece to be shifted onto the work station so that the above-noted steps are repeated.
Abstract: An apparatus for producing blanks from a web including a pair of relatively movable upper and lower blades for severing therebetween blanks from a web along a predetermined cut line established by cooperative cutting edges of the blades, an end feed path of travel for the web and a discharge path of travel for the blanks, a mechanism for rotating the blades to selectively vary the cutting angle and thereby vary the sizes, shapes and/or cut line orientation of the blanks severed from the web, a transfer mechanism for transferring each severed blank from a position adjacent the blades and the end feed path of travel to a second position at the blank discharge path of travel, the transfer mechanism including a receiving element pivoted to an arm which in turn is pivoted for movement in a generally horizontal plane, the receiving element be accommodated in a recess adjacent the blades and receiving therein each severed blank for transfer to the discharge path of travel.
Abstract: Process and apparatus for automatically producing a fabric with aligned nap zone and napless zone includes a conveyor along which the fabric is transported in such a manner that its nap zone is located at one side of a press pad and the napless zone is located under and at the other side of the press pad. A clamping device can be lowered on the napless zone to pull the latter transversely to the conveying direction of the fabric so that the edge of the nap zone is forced towards the press pad and to be aligned parallel thereto. Through cutting the napless zone in conveying direction after the nap zone is urged to lie against the press pad parallel to the edge of the nap zone an exact alignment of the napless zone to the nap zone is achieved.
Abstract: A cutting apparatus such as a metal-cutting circular saw apparatus has an axially displaceable shaft for mounting a saw blade. The shaft is hydrostatically supported both in the radial and in the axial direction. To provide for the axial displaceability of the shaft, the shaft is axially hydrostatically supported at one end by means of an annular piston. The piston bears with a radial end portion thereof against a shoulder in the bearing housing, the shoulder projecting into the cylinder in which the piston is displaceable. The piston is of such a cross-sectional shape and elasticity that in an operative position it is elastically pivoted or tilted, thereby reducing the clearance between the piston and the cylinder, so the piston can carry bearing forces in a radial direction, and also eliminating the need for piston sealing means.
Abstract: Machine intended for cutting out transversely, along a straight or broken, oblique or right-angled cutting line, a band material adapted to be fed parallel to its length.This machine has in combination, a device to unwind the band at constant linear speed from a reel and a second device to, firstly, advance the unwound band at constant linear speed from a fixed plane support which extends at least from the second device into proximity of the cutting system, and secondly, permit an edge of the band to be applied against a lateral edge guide. Use of this machine includes cutting of pieces from flexible compound material.
August 16, 1983
Date of Patent:
December 3, 1985
Societe Nationale Industrielle et Aerospatiale
Abstract: A feeder mechanism for feeding a sheet of metal to be blanked in a zigzag fashion in cooperation with a sheet of metal feeder mechanism of a press. A reversible D.C. motor is employed for reciprocating the sheet of metal in a direction at right angles to the sheet of metal feed direction of the press. The forward and reverse rotation and its cycle of the D.C. motor are controlled by a controller in synchronism with the feeding speed of the sheet of metal. The rotational motion of the D.C. motor is translated into a linear reciprocating motion of a die set by a rack and pinion mechanism. The rack is connected to the die set and is reciprocated in a direction at right angles to the sheet of metal feed direction of the press.
Abstract: The present invention relates to a blanking apparatus comprising a press, a ram vertically movably provided on the press, a blanking unit disposed just beneath the ram, blanking tools arranged in the blanking unit; and a striker member for working on the blanking tools. The apparatus is used in particular for blanking a sheet material from a coiled strip into a number of pieces in the form of discs, triangles, and other shapes.
Abstract: A method and apparatus for automatically severing individual towels from a length of material comprising a plurality of terry towels. The method includes the steps of measuring slightly less than the supposed length of a towel, then activating a sensor that detects the edge of a cutting space by the change in thickness of the material. The sensor causes feeding of the material to stop with a cut-line at a cutting blade. The first edge of the material is held while a second sensor located the same edge at the opposite side of the material, and the cutting blade is moved with the sensor. The material is stretched to straighten the cut-line, and the cutting blade is caused to cut the material. The apparatus includes feed rolls to move the material, and an encoder measures the length. A roller at one edge of the material detects the change in thickness at one edge, and similar rollers detect the change in thickness at the opposite edge.
Abstract: An improved apparatus for cutting strip material is disclosed in which a strip (16) such as flattened plastic tubing is intermittently fed across a cutting edge (64, 66) mounted on a rotatable platform (34). A cutting element (84098) is moved back and forth along the cutting edge to sever the strip into segments having a leading edge at one angle to the axis o- the strip and a trailing edge at another angle.
Abstract: A cutting tool arrangement for performing the process of opening up the slit cut in the workpiece by circular saws before the saw is retracted to facilitate removal of the saw. The workpiece being severed is moved perpendicular to the cutting plane as is the saw blade to accomplish the desired result.
Abstract: A method and apparatus for blanking wide sheet materials into a plurality of pieces of predetermined shapes are disclosed. The apparatus comprises a blanking die press and first and second carriages movable in a predetermined, numerically controlled and programmable sequence along Y and X axes, respectively, relative to the blanking die press. The blanking die includes upper and lower die holders which are adapted to be automatically rotated approximately 180.degree. to reverse the die orientation and thereby more economically blank the sheet material with a minimum of wastage.