Abstract: The invention relates to a machine for the manufacture of a web of corrugated board which is conveyed in a working direction and comprises at least one smooth liner and at least one corrugated medium that has corrugation tips and corrugation troughs, the corrugated medium being applied by adhesion to the at least one liner at least in the vicinity of the corrugation troughs, wherein a quality assessment device for assessment of the quality of the adhesive bond between the at least one liner and the at least one corrugated medium is provided, which comprises at least one ultrasonic transmitter that is disposed on one side of the web of corrugated board and at least one ultrasonic receiver that is disposed on the opposite side of the web of corrugated board and is allocated to the at least one ultrasonic transmitter; and a control anti evaluation unit which, in a manner for data transmission, is connected to the at least one ultrasonic receiver for evaluation of the signal of the ultrasonic receiver.

Abstract: The invention relates to a machine for the manufacture of a web of corrugated board which is conveyed in a working direction and comprises at least one smooth liner and at least one corrugated medium that has corrugation tips and corrugation troughs, the corrugated medium being applied by adhesion to the at least one liner at least in the vicinity of the corrugation troughs, wherein a quality assessment device for assessment of the quality of the adhesive bond between the at least one liner and the at least one corrugated medium is provided, which comprises at least one ultrasonic transmitter that is disposed on one side of the web of corrugated board and at least one ultrasonic receiver that is disposed on the opposite side of the web of corrugated board and is allocated to the at least one ultrasonic transmitter; and a control anti evaluation unit which, in a manner for data transmission, is connected to the at least one ultrasonic receiver for evaluation of the signal of the ultrasonic receiver.

Abstract: A method of manufacturing fluted rolls, in particular for corrugating machines, comprises the steps of providing a fluted-roll blank which has a central longitudinal axis and a longitudinal direction that is parallel thereto and a surface; providing a grinding device for grinding, on the surface, flutings that run in the longitudinal direction, with the flutings comprising heads and roots that are parallel to each other and are regularly and alternately distributed along the circumference of the surface; and grinding fluting heads on the surface by means of the grinding device, with the fluting heads having the same cross-sectional curvature in the longitudinal direction.

Abstract: A corrugating machine serves for the manufacture of sheets of corrugated board. It comprises at least two unroll stands for unwinding webs of material. A fluting unit is provided for producing at least one corrugated medium from one of the webs of material. A processing equipment serves for uniting the webs of material to form a web of corrugated board. The sheets of corrugated board are cut to size in a cutting station. At least one digital printing system for printing at least one of the webs is disposed between the unroll stands and the cutting station. One of the webs of material can have a coating for improved printing quality.

Abstract: A web of material serves for use in a corrugating machine for the manufacture of sheets of corrugated board. The corrugating machine comprises at least two unroll stands for unwinding webs of material. A fluting unit serves for the manufacture of at least one corrugated medium from one of the webs of material. A processing equipment serves for uniting the webs of material to form a web of corrugated board. The sheets of corrugated board are cut from the web of corrugated board by means of a cutting unit. A printing system is provided for printing at least one of the webs. The web of material has a coating for improved printing quality. A method for the manufacture of sheets of corrugated board is specified, using such a web of material. The results are sheets of corrugated board with improved imprint.

Abstract: A method of manufacturing fluted rolls, in particular for corrugating machines, comprises the steps of providing a fluted-roll blank which has a central longitudinal axis and a longitudinal direction that is parallel thereto and a surface; providing a grinding device for grinding, on the surface, flutings that run in the longitudinal direction, with the flutings comprising heads and roots that are parallel to each other and are regularly and alternately distributed along the circumference of the surface; and grinding fluting heads on the surface by means of the grinding device, with the fluting heads having the same cross-sectional curvature in the longitudinal direction.

Abstract: A transport apparatus for transporting tubes of the type onto which yarn is built by a textile machine includes a flexible endless member which travels in guided manner in a fixed guide device with the flexible endless member in a generally vertical orientation. A plurality of movable guide assemblies are connected to the flexible endless member at spaced intervals therealong and are engagable with the fixed guide device for spacing the flexible endless member out of interference from the fixed guide device during movement of the flexible endless member. A tube carrier portion is mounted to each movable guide assembly for supporting tubes during their transport by the flexible endless member. A plurality of cog members having recesses for engaging the movable guide assemblies are operable to guide the flexible endless member along arcuate portions of its travel path.

Abstract: A transport apparatus is provided for transporting tubes of the type onto which yarn is built at a spinning machine to form full yarn packages. The transport apparatus includes a flexible endless member arranged for travel in a path along the spindle bank and carrier members mounted to the flexible endless member for releasably retaining a plurality of independent tube support members, each of which has a vertical post for receiving a tube inserted thereon for individual support of the tube in an upright disposition. The transport apparatus also includes a plurality of spaced fixed tube support members secured to the flexible endless member, each having a vertical post for receiving a tube inserted thereon. The vertical posts of the independent tube support members and the fixed tube support members are spaced apart at a spacing substantially equal to the uniform spacing between the spindles of the spinning machine.

Abstract: Apparatus for transporting spinning tubes mounted on peg trays for supply and removal of spinning tubes to and from a textile spinning machine comprises an endless upstanding conveyor belt to which a plurality of transport members are affixed at spacings therealong. Each transport member has a recess at its opposite leading and trailing sides such that the leading and trailing recesses of adjacent succeeding transport members are cooperative for receiving therebetween a peg tray. Each transport member also has a concave arcuate guide surface at its opposite leading and trailing sides such that the leading and trailing guide surfaces of adjacent succeeding transport members define an enclosure for securely positioning a peg tray therebetween.

Abstract: Apparatus for transporting spinning tubes mounted on peg trays for supply and removal of spinning tubes to and from spinning positions at opposite sides of a double-sided spinning machine comprises an endless upstanding conveyor belt extending about the machine. A plurality of transport members are affixed along two spaced transport sections of the belt each of a length corresponding to the spinning stations at the opposite machine side, for carrying peg trays with spinning tubes thereon. Obstruction elements are similarly affixed at spacings along the remaining extents of the belt to prevent receipt of peg trays therealong, whereby only the number of peg trays and spinning tubes required to supply the spinning positions of the machine are carried by the transport apparatus.

Abstract: A roving bobbin creel for use in a textile ring spinning machine includes upright stanchions spaced along the length of the machine at its center, mounting elements affixed to the upright stanchions, support elements affixed to the mounting elements to extend transversely outwardly therefrom, and an elongate carrier element affixed to the underside of the support elements to extend longitudinally with respect to the spinning machine for supporting a plurality of roving bobbins in depending fashion from the elongate carrier element. Each mounting element includes a tongue portion projecting transversely outwardly with respect to the spinning machine and each support element defines an interior receiving area for insertion of the tongue portion for simple yet secure affixation of the supporting elements on the mounting elements.

Abstract: A textile machine includes a plurality of tube support devices transported by a transport device to a tube transfer position for transfer of tubes between the tube support devices and a tube handling device. The tube support devices each include an upright member for individually supporting a tube in a substantially upright disposition, the upright member having a recess and an indicator device disposed within the recess. The indicator device cooperates with the transport device to indicate the presence of the upright member at an indicating position located at a predetermined location with respect to the tube transfer position. Accordingly, the transport device determines the presence of an upright member and responds accordingly to reliably position the upright member at the tube transfer position for transfer of the tube between the upright member and the tube handling device.

Abstract: A method and apparatus for automatically doffing fully wound bobbins simultaneously from the plural spindles of a textile spinning or twisting machine and subsequently donning empty tubes simultaneously onto the spindles. When doffing a fully wound bobbin from its supporting spindle, a trailing length of yarn from the doffed bobbin is helically placed about the spindle and, when subsequently donning an empty tube onto the spindle, the trailing yarn length is securely clamped at least partially between the empty tube and spindle, which trailing yarn length is automatically broken from the doffed bobbin upon its removal, to enable convenient automatic re-start of the machine.

Abstract: A lightweight, rigidified support stand for textile spinning and like machines may be easily manufactured with close tolerances without resort to a casting process by welding together a profiled sheet metal base having a substantially flat main support surface provided with a plurality of receptacles for fastening of machines components and a sheet metal brace member of a U-shaped profile. The formation of the fastener receptacles in the base member enables the receptacles to be arranged in a single plane with close tolerances, while the brace member serves to rigidify the base member.

Abstract: The invention relates to a tangential belt drive for a plurality of similar work units of a machine for the production of twisted or twined yarn. These units are subdivided into sections each having at least approximately the same number of work units and each driven through a tangential belt by an electric motor. Thereby, the number of work units in each section is established taking into account the required power and permissible belt stretch, so that the tangential belts have a considerably reduced width and thickness, compared to the ones commonly used. Further, the guide rollers of the tangential belts of neighboring sections are corotationally connected to each other.In order to improve synchronization and power transmission between sections, the contact angle is increased at the guide rollers and the drive pulleys. This may be done through the corresponding spatial arrangement of the drive pulleys with respect to the guide rollers or through use of an intermediate belt arrangement.

Abstract: The invention relates to a tangential-belt drive for a plurality of work units of the same kind, arranged at least in one row next to each other, of a machine for the production of twisted or twined yarns. The work units are divided into sections with at least approximately the same number of work units, each driven with an endless tangential belt. At least one electromotor is assigned to each section for driving the thereto pertaining tangential belt and guiding means for the tangential belt.In order to reduce the energy losses of such a tangential-belt drive, the width and thickness of the tangential belt used is considerably reduced, particularly to a width between 7 and 14 mm and a thickness between 2 and 2.7 mm. Size reduction becomes possible because the number of working units in each section is selected by considering the working capacity required by this number of work units and the acceptable belt stretch factor.