Patent classifications
B26D3/003
METHOD AND APPARATUS FOR CORRECTING A FEEDING DISTANCE OF A STRIP FOR CUTTING
A method and an apparatus for correcting a feeding distance of a strip or cutting, involves feeding the strip over the feeding distance in a feeding direction towards a cutting line that extends at an oblique cutting angle to the feeding direction; detecting a lateral position of a first longitudinal edge of the strip in a lateral direction perpendicular to the feeding direction; wherein, when the detected lateral position is offset over an offset distance in the lateral direction with respect to a reference position for the first longitudinal edge at the measuring line, and adjusting the feeding distance with a correction distance that is related to the offset distance in a ratio that is defined by the cutting angle.
CONNECTED ELASTICS
A strand of connected elastics is disclosed. The strand includes a series of elastic bands and a series of connecting portions that connect the series of elastic bands to each other. The connecting portions may have configurations that enable them to broken when separation and use of an elastic from an end of the strand is desired. Methods for manufacturing and using strands of connected elastics are also disclosed.
Method and apparatus for correcting a feeding distance of a strip for cutting
A method and an apparatus for correcting a feeding distance of a strip or cutting, involves feeding the strip over the feeding distance in a feeding direction towards a cutting line that extends at an oblique cutting angle to the feeding direction; detecting a lateral position of a first longitudinal edge of the strip in a lateral direction perpendicular to the feeding direction; wherein, when the detected lateral position is offset over an offset distance in the lateral direction with respect to a reference position for the first longitudinal edge at the measuring line, and adjusting the feeding distance with a correction distance that is related to the offset distance in a ratio that is defined by the cutting angle.
CUTTING DEVICE FOR CUTTING NARROW STRIPS FROM A STRIP OF MATERIAL, IN PARTICULAR A RUBBERIZED STRIP OF MATERIAL
A cutting device for cutting narrow strips from a material web in or on which magnetically couplable elements are embedded or arranged at defined spacings behind one another in the web longitudinal direction, including a blade table arranged on a device frame, and on which the material web to be cut can be positioned, a cutting apparatus including a cutting blade which can be moved out of a starting position into a cutting position relative to the blade table, and a gripping device which receives and transports a cut strip and can be moved relative to the blade table. Either the gripping device including a hold-down section placeable for cutting purposes onto the material web positioned on the blade table and fixes the material web during the cutting on the blade table, and a magnetic element which interacts magnetically with the magnetically couplable element of the cut strip for fixing the strip on the gripping device for transport into a dispensing position, and the hold-down section including a recess, through which the cutting blade can be moved to the blade table into the cutting position, or the gripping device including a hold-down section placeable for cutting purposes onto the material web which is positioned on the blade table and fixes the material web during the cutting on the blade table, and a magnetic element which interacts magnetically with the magnetically couplable element of the cut strip for fixing the strip on the gripping device for transport into a dispensing position, and at least one further hold-down element being provided which can be placed onto the material web for cutting purposes spaced apart from the hold-down section with the configuration of a clearance, it being possible for the cutting blade to be moved through the clearance to the blade table into the cutting position.
PROCESS AND APPARATUS FOR BUILDING TYRES FOR VEHICLE WHEELS
A process and an apparatus for cutting a continuous rubber-covered belt in a process for building tyres for vehicle wheels, wherein the apparatus includes a cutting group, in turn comprising: a knife formed by a first half-part and a second half-part and movable along a cutting direction that is tilted with respect to a supply direction of a rubber-covered belt placed beneath the knife. The process includes: lifting a lifting element placed below the continuous rubber-covered belt and at the cutting zone, until a portion of rubber-covered belt is lifted, and lowering the single first-half part of the knife, making it slide with respect to the second half-part.
AUTOMATIC SAMPLING SYSTEM AND METHOD
An automatic sampling system (100) and an automated sampling method take samples of a rubber strip after shaping and while scrolling in a predetermined direction.
Connected elastics
A strand of connected elastics is disclosed. The strand includes a series of elastic bands and a series of connecting portions that connect the series of elastic bands to each other. The connecting portions may have configurations that enable them to broken when separation and use of an elastic from an end of the strand is desired. Methods for manufacturing and using strands of connected elastics are also disclosed.
Method and apparatus for measuring protrusion length of protrusion portion
Method and apparatus for measuring a protrusion length of a protrusion portion on each side of sheet after cutting even when there is variation in positions of cords embedded in the sheet, apparatus with imaging unit that images cross-sectional profile in width direction of sheet including protrusion portions, and generates waveform data from imaging of cross-sectional profile, detect maximum height-positions of crests and of troughs of waveform data, set, based on waveform data, a maximum height-position of crest closest to width end of sheet as maximum height-position of end crest, set a position corresponding to an edge of protrusion portion of sheet, located on more width end side than maximum height-position of end crest, as minimum height-position of a terminal trough, detect distance in width direction of sheet between maximum height-position of end crest and of the terminal trough, and measure protrusion length of protrusion portion based on detected distance.
Chain-type cutting assembly
An assembly for cutting foam, nonwoven, rubber, and composite products has a guide having a longitudinally extending guide edge formed with a longitudinally extending and outwardly open groove. A longitudinally extending row of cutting elements extends along the guide edge, and element each has an entrainment dog projecting inward into the groove, a support riding on the guide edge and having sides each formed with a pair of longitudinally spaced and outwardly open recesses, a base outward of the support, and a wedge-section cutting tooth forming a cutting edge outside the base and having a pair of longitudinally extending flanks converging at the cutting edge. Coupling links extend between and have ends set in the recesses of adjacent cutting elements. Pivot pins extend through the ends of the links and through the supports at the bases. The base is of a maximum width greater than a width of the assembly at the pins.
PLANT FOR MANUFACTURING TYRES AND MANUFACTURING METHOD RELATED THERETO
Within tyre manufacturing, a reinforcing structure of the tyre, such as the zero-degree layer of the belt structure, is made by an apparatus having devices for guiding a continuous elongated element towards a forming drum, devices for applying the elongated element against a laying surface of the drum, and a cutting unit to cut off the continuous elongated element when application has been completed. Once the cutting operation has been carried out, the free end of the continuous elongated element is set to a grip position downstream of the cutting unit, through a reciprocating slider and a threading element blocking the continuous elongated element with respect to the slider when the latter moves towards the forming drum.