Abstract:
A method of making a mechanical fastener. The method includes providing a slit web (10) having mechanical fastening elements and spreading the slit web (10) in the cross-machine direction by directing the slit web (10) over at least a first roller (110) having first multiple protrusions (114) around its peripheral surface. The slit web (10) includes a plurality of interrupted slits (20) that are interrupted by intact bridging regions (22) of the web (10) that divide the interrupted slits (20) into a series of spaced slit portions (20a, 20b) aligned in the machine direction. The first multiple protrusions (114) are positioned such that adjacent protrusions push through consecutive slit portions (20a, 20b) of the interrupted slits (20) to form a spread mechanical fastening web. An apparatus (100) including the first roller (110) and at least a subsequent roller is also disclosed.
Abstract:
A saw-blade comprises a disc and a plurality of tooth holders. The saw blade disc has a plurality of receiving stations with at least one recess with an indentation extending tangentially from a radially inner leading edge portion thereof. Each one of the tooth holders has a protrusion extending tangentially from a radially inner leading edge portion thereof. The tooth holders are engageable in the receiving stations of the saw blade disc with the protrusions of the tooth holders being inserted in the indentation of the receiving stations.
Abstract:
A tool for safely disassembling and reassembling blades for slicing machines. The tool (1) comprises a protective body (2) that is extended around a main axis (3) and has a perimetric profile adapted to be superimposed, with one of its sides, on a peripheral band of the blade (52). The protective body (2) supports rotatably, about the main axis (3), an actuation element (4) that can engage a rotatable locking element (59) of the blade (52) which is provided on the blade (52) and can engage the slicing machine. The protective body (2) supports, on its opposite side with respect to the side to be directed toward the blade (52), an actuation handle (5) which is connected to the actuation element (4) and can be maneuvered to turn the actuation element (4) with respect to the protective body (2) about the main axis (3). The actuation handle (5) is supported rotatably by the protective body (2) about a secondary axis (6), which is parallel and spaced with respect to the main axis (3) and is connected to the actuation element (4) through a kinematic transmission (7), which is adapted to increase the torque transmitted by the actuation handle (5) to the actuation element (4).
Abstract:
The present invention is directed to a cutter (300) having a blade cartridge (350), a grip (330) for handling by a user and a coupling arrangement for coupling the cartridge (350) to the grip (330) in such a manner to prevent undesired rotation of the cartridge (350) with respect to the grip (330). The blade cartridge includes a blade (351), an upper cover (353), and a lower cover (354), the blade (351) being rotatably supported therebetween. The upper cover (353) is further provided with a locking protrusion (352a) at one end and a locking recess (352b). The locking protrusion (352a) is inserted into a locking aperture (341) that is carried by the grip (330), thereby acting against a spring biased pusher (332) within the aperture. The grip (330) further carries a spring biased locking member (342) that meets with the locking recess (352b) of the upper cover (353). To attach the blade cartridge (350) to the grip (330), the locking protrusion (352a) is inserted into the locking aperture (341), against the spring biased pusher (332). The cartridge is then rotated 90 DEG clockwise, thereby locking the protrusion (352a) in the aperture (341). This rotation also causes the locking member (342) to move into engagement with the locking recess (352b). To release the blade cartridge (350) from the grip (330), a release knob (344) that is operatively coupled to the locking member (342) is actuated, thereby moving the member (342) out of engagement with the recess (352b). The blade cartridge (350) can then be rotated 90 DEG counterclockwise. In this position, the spring biased pusher (332) acts against the locking protrusion (352a), thereby detaching the cartridge (350) from the grip (330).
Abstract:
A method and apparatus for manufacturing an object of a folded sheet material has improved slitting, scoring/crushing, gathering, and folding sections or devices. Qualifying means (119/141), slitting means (122/127), and scoring/crushing means (100) are adjustable with respect to a flat, planar path of movement so that a blank of sheet material (67, 82) moves through the machine without causing the blank to assume an "S" shape, or otherwise suffer loss of paper control. Identifying rollers (101) slightly pre-fold the blank before it enters the gathering section (102) for additional pre-folding. There are also provided novel slitting/scoring heads (233) on the scoring means (100), (shown in the figure) which are easily changed in number of configuration, and have easily replaceable split blades (230).
Abstract:
This invention relates to a hydraulically expandable hub (11) having a collection groove (22) and a vent port (20) to prevent the leakage of oil upon the shaft (10) to which the hub is mounted. An oil collection groove (22) is located along the inside diameter of the hub (11) between each end of the hub and the oil groove (16) also located on the inside diameter of the hub (11). A vent port (20) is connected to the collection groove (22) so a vacuum source (40) can be applied to the hub. The negative pressure produced by the vacuum source (40) at the collection groove (22) sweeps or pulls oil seepage from the oil groove (16) into the collection groove (22) which is transported to the hub exterior through the vent port (20). Such a hub can be altered in position about the shaft without leaving oil residue along the shaft.
Abstract:
A hub (3) on which a cutting tool (4) is adhered, is provided in its bore (8) with an annular recess (10) and with two annular chambers (11) each containing a sealing joint (12). The annular recess (10) is connected to a connection (14) for a pressure fluid intake and the two annular chambers (11) are connected to a connection (16) for the exhaust of the pressure fluid. The pressure fluid, particularly pressurized oil, allows the widening of the hub (3) in order to mount or adjust the cutting tool, the chambers (11) intended to collect the pressure fluid for transferring directly said pressure fluid into a container or in the pressure generator. Thus, the clogging with fluid of neighbouring machine members is avoided.
Abstract:
Schneidwalze (1) für eine Rollenschneidmaschine, insbesondere zur Verarbeitung von breiten Folienbahnen, mit einer Vielzahl von ringförmigen, rechtwinklig zu einer Drehachse (4) umlaufenden Nuten (6), wobei die Schneidwaize (1) einen hohlzylindrischen Tragkörper (2) aus einem Faserverbundwerkstoff aufweist, dadurch gekennzeichnet, dass koaxial auf dem Tragkörper (2) zumindest eine die Nuten (6) bildende metallische Nutenhülse (5, 50, 51) angeordnet und festgelegt ist.
Abstract:
Die Erfindung betrifft ein Schneidmesser einer Hochleistungsaufschneidevorrichtung mit einem Rotationsmittelpunkt und mindestens einer Befestigungsausnehmung zur Befestigung des Schneidmessers an der Hochleistungsaufschneidevorrichtung. Des Weiteren betrifft die vorliegende Erfindung eine Hochleistungsaufschneidevorrichtung und ein Verfahren zur Montage eines Schneidmessers an einer Hochleistungsaufschneidevorrichtung.