摘要:
Each original has a notch. A notch detector is located a distance Z upstream of the point at which the notch centerline is later to be stopped, and generates a notch-start and a notch-end pulse. A transducer generates strip-increment pulses during strip transport. In response to a notch-start pulse first and second counters start counting the strip-increment pulses, the first counting the Z distance, the second counting the notch length N. A divider ascertains the notch half-length N/2, which is then stored. When the counting of the Z-distance is finished, strip transport is not immediately stopped, and instead is stopped only after the counting of a further number of strip-increment pulses corresponding to the length N/2, whereupon transport is stopped. This references the system to the reliable centerlines of variable-length notches, instead of the leading ends of the notches, and assures correct positioning when transport is stopped.
摘要:
A system, apparatus and method for cutting battery grids or plates from a continuous strip of a plurality of connected battery grids. The continuous strip moves toward a rotating cutter with at least two cutter blades with cutting edges equally circumferentially spaced apart and extending parallel to the cutter axis of rotation and a rotating cooperating anvil. The cutting edges and the anvil are rotated at the same tangential speed to cut in a nip between them a plate or grid from the continuous strip of connected grids. At a point upstream of the cutter, an electric signal indicative of each lug of the grid of the continuous strip moving past this point is used to control the speed of movement of the strip through the nip to cut a plate or grid from the continuous strip at a longitudinal speed which is essentially the same as the tangential speed of the cutting edges.
摘要:
A roller shade cutting machine includes a base, a track assembly, a shade holder, a slat cutting device and a shade cutting device. The track assembly is mounted the base and includes a stationary track and an adjustable track with a ruler slidably mounted on the stationary track. The shade holder is mounted on the stationary track and has a rotating chuck to clamp a roller of the roller shade. The shade cutting device is mounted on the stationary track below the shade holder to cut the spinning roller. The slat cutting device is mounted on the stationary track and has a rolling cutter that is swiftly turned to cut a slat of the roller shade. Therefore, the cutting machine can be used to cut not only the roller but also the slat of the roller shade so that the machine is convenient to use.
摘要:
A laser arbor is provided that will display a cutting line on a work piece to be cut by a rotary saw. The laser is operated by a centrifugal switch mounted within the laser arbor along with a laser diode or the like and a battery. Because of the rotation of the laser with the blade and the persistence of the human eye, the moving light spot from the laser appears as a single line, hence it is not necessary as in the prior art to produce light divergence in the plane parallel to the blade plane. For that purpose, it is preferable to employ a light source having a wavelength that lies in a region to which the eye is sensitive, which in practice will typically mean a wavelength in the upper region of the red. Placement of the laser inwardly from the cutting surface of the blade eliminates the danger of any damage occurring to the laser as a result of debris from the cutting process.
摘要:
A feed and cutting device for dividing a continuous web into portions is described. The device comprises along a feed plane, guiding device for the web comprising a pair of mutually tangential rollers, apparatus for feeding the web along said plane and a device for cutting the web into portions. The main feature of the device is that at least one of the guide rollers is mounted on a shaft coaxial thereto and rotating with continuous motion, and is connected to the shaft by a self-locking device which prohibits any discordant relative rotation between the roller and the shaft but which allows idle rotation of the roller on the shaft at an angular speed exceeding the angular speed of the shaft, the angular speed of the shaft being close to but less than the angular speed transmitted to the respective roller by the feed device by way of said web.
摘要:
An apparatus for producing identical flat carriers each having an identical representation thereon, by the steps of providing a plurality of individual representations on a flat material in a predetermined mutual relationship, providing at least two reference marks on the flat material in predetermined relationship with respect to the representations, mounting the flat material carrying the representations in a preset position relative to a punch device by means of the reference marks and successively punching out the individual carriers from the flat material by the punch device.
摘要:
APPARATUS AND CONTROL MEANS THEREFOR FOR TRIMMING EXCESS MATERIAL FROM THE EDGES OF A TIRE WEB HAVING A MULTIPLICITY OF STEEL WIRES EMBEDDED BETWEEN TWO LAMINATED SHEETS OF RUBBER AND RUNNING PARALEL TO THE EDGE COMPRISES: A TRIMMING BLADE FOR CUTTING EXCESS MATERIAL FROM THE EDGE, A DETECTOR HEAD INCLUDING AN OSCILLATOR COIL LOCATED DOWNSTREAM OF THE BLADE AND ADJACENT TO THE TRIMMED EDGE OF THE WEB FOR SENSING THE LOCATION OF THE OUTERMOST WIRE. BOTH THA BLADE AND THE DETECTOR HEAD ARE MOUNTED IN FIXED POSITIONS ON A SUPPORTIN STRUCTURE OR CARRIAGE WHICH IS ADJUSTABLY MOVABLE TRANSVERSELY TO THE WEB SO THE BLADE CAN MAINTAIN A CONSTANT DIMENSION BETWEEN THE OUTERMOST WIRE AND THE TRIMMED EDGE OF THE WEB. THE CARRIAGE IS MOVABLE BY A SCREW DRIVE MECHANISM WHICH IS POWERED BY A SERVO-MOTOR. AN OSCILLATOR CIRCUIT ENERGIZES THE OSCILLATOR COIL IN THE DETECTOR HEAD AND CHANGE IN AMPLITUDE OF COIL OSCILLATION VOLTAGE CAUSED BY LATERAL MOVEMENT OF THE OUTERMOST WIRE TOWARD OR AWAY FROM THE DETECTOR HEAD (INDICATING A CHANGE IN THE DESIRED CONSTANT DIMENSIONS) ARE SENSED BY A DETECTOR CIRCUIT, INTEGRATED AND AMPLIFIED TO PROVIDE CONTROL SIGNALS REPRESENTATIVE OF DIMENSIONAL CHANGES AND EMPLOYED TO CONTROL ENERGIZATION OF THE SERVO-MOTOR TO MOVE THE CARRIAGE AND MAINTAIN A CONSTANT DISTANCE BETWEEN THE BLADE AND THE OUTERMOST WIRE.
摘要:
A window blind cutting machine includes a machine base; two cutting units respectively disposed at two ends of the machine base, each cutting unit having a cutter movable along a respective cutting path across a longitudinal axis of the machine base for cutting off a part of the window blind carried on the machine base that protrudes over a respective reference line based on the cutting path, two measuring devices respectively disposed at an outer side of each cutting unit for measuring the part of the window blind that protrudes over the reference line, and two inner measuring rules arranged in parallel to the longitudinal axis and respectively extended in reversed directions from one cutting unit toward the other and having a respective true-zero disposed at the reference line, for measuring the length of the window blind from the reference line.
摘要:
A laser marker including a laser marker body to hold a battery power supply and a control circuit, a laser module pivotably connected to the laser marker body and controlled by a push-button switch of the control circuit board to emit a laser beam, a set of laser firing caps alternatively mounted on the laser module to refract the laser beam by a respective plano-convex length of different focal length for marking a line of light on a workpiece for guiding a cutting tool to cut the workpiece. The laser module can be turned on laser marker body around the X-axis; the laser firing cap can be turned on the laser module around the Y-axis.