摘要:
The invention concerns a method for performing maintenance on a chopper (7), in particular for replacing cutting members of a chopper. The invention is characterized in that it consists in: drawing at least one wire (5) in a first operating chopping assembly (C1), said first chopping assembly (C1) including a chopping wheel (8) and an anvil wheel (9), said first chopping assembly (C1) being integral with a chassis mounted mobile about an axis (24), rotating said chassis about its axis (24) until the second chopping assembly (C2) initially in non-operating position is brought proximate to the wire (5), said second chopping assembly (C2) being integral with said chassis and comprising a chopping wheel (8) and an anvil wheel (9), operating the second chopping assembly (C2) and engaging the wire (5) between the chopping wheel (8) and the anvil wheel (9), bringing said first chopping assembly (C1) into non-operating position.
摘要:
An ultrasonic apparatus and method for cutting a non-planar workpiece (10). The apparatus includes an anvil (16) having a non-planar surface (22) for closely engaging an underside (20) of the workpiece (10). An ultrasonic horn (26) has a non-planar cutting surface (36) closely receiving a topside (18) of the workpiece (10), wherein the cutting surface (36) and the support surface (22) have complementary non-planar shapes. The ultrasonic horn (26) resonates at a predetermined frequency effect cutting of the workpiece (10). If the workpiece (10) has a heat fusible component, the workpiece (10) can also be seamed.
摘要:
Method for binding a quire formed of folded sheets slipped into each other, characterised in that it consists in providing at least one cut (16) through the sheets (14) of the quire (12) as of a short distance from the folding edge (13) of the quire (12), whereby every cut (16) through a sheet (14) of the quire (12) defines a lip (17) extending mainly crosswise to the above-mentioned folding edge (13) of the quire (12) and which is connected to the quire (12) with its far end (18) turned towards the folding edge (13), and whereby said lip (17) has a widening (19).
摘要:
The invention concerns a method for performing maintenance on a chopper (7), in particular for replacing cutting members of a chopper. The invention is characterized in that it consists in: drawing at least one wire (5) in a first operating chopping assembly (C1), said first chopping assembly (C1) including a chopping wheel (8) and an anvil wheel (9), said first chopping assembly (C1) being integral with a chassis mounted mobile about an axis (24), rotating said chassis about its axis (24) until the second chopping assembly (C2) initially in non-operating position is brought proximate to the wire (5), said second chopping assembly (C2) being integral with said chassis and comprising a chopping wheel (8) and an anvil wheel (9), operating the second chopping assembly (C2) and engaging the wire (5) between the chopping wheel (8) and the anvil wheel (9), bringing said first chopping assembly (C1) into non-operating position.
摘要:
Apparatus and method for trimming signatures (S) moving in a continuous stream and in an arcuate path as controlled by a conveyor (11). A trimming knife (14) is stationarily disposed adjacent the arcuate path for engaging the marginal edges (68, 68) of the signatures and trimming those edges. Input and output conveyors (10, 12) are in signature-flow communication with the conveyor (11) of the arcuate path, and either input or output conveyor (10, 12) can be reversed for the input and output function, and also the conveyor (11) having the arcuate path can accordingly be reversed so that the signatures (S) can move in either continuous arcuate path of movement for the trimming process.
摘要:
A strip (10) of slips (12) is characterised by breaking portions (62, 64) at which each individual clip (12a, 12b, 12c) is separable from its longitudinal neighbours these portions being coextensive, longitudinally of the strip, with the line of separation (60) which divides off each clip from its longitudinal neighbours and which is formed without removal of material of the strip. This line is achieved by shearing the material of the strip while bowing it about a longitudinal axis so as to present a curved surface to an oncoming shearing tool which has an oppositely curved surface. The extent of intersection of the opposite curve defines the length of the line of the separation. The breaking portion is adjacent each end of the line. The clips during severence suffer apparent laterial contraction but no longitudinal distortion.