摘要:
A folded portion flattening unit includes: a sheet conveyance unit that conveys a booklet including a folded sheet with a folded portion in a lead toward a predetermined conveyance direction; a sheet stopper that stops the booklet conveyed by the sheet conveyance unit at a predetermined position; a pair of booklet grasping members that clamp and grasp the booklet stopped by the sheet stopper at both faces of the booklet; a pressing member that flattens a curve at a front end of the folded portion being grasped by the booklet grasping members, by pressing the front end toward a direction opposite to the conveyance direction; and an opening amount setting unit that sets an opening amount of an opening portion between the pair of booklet grasping members, when the conveyed booklet is sandwiched between the pair of booklet grasping members.
摘要:
A binding-in and pressing machine (1) with a plurality of pressing stations (60) and heated joint forming rails situated on a reciprocating carriage (50). An alignment station (20) is provided for aligning the book case joints (2a) at the height of the joint forming rails (49a, b), including a height-adjustable alignment table (21) with rails (22, 23) for supporting the book (2) on the outer edges of its spine and guide elements (28, 6) for centering the book on the alignment table. A separate pre-forming station (40) is also provided that comprises the forming rail (51), clamping plates (41a, b), and joint rails (48a, b) that engage into the book case joints (2a) and counteract a downward movement of at least the book case joints (2a). The books (2) aligned in the alignment station (20) are transferred into the pre-forming station (40) while being clamped in lateral regions near the joints. The effective times available for realizing a functionally safe alignment and a permanent pre-forming of the books are extended due to the assignment of the alignment and pre-forming functions to two separate stations.
摘要:
The method and the apparatus of the invention serve to shift at least some sheets of successive stacks of overlapping sheets so that the originally straight holes which are provided along one marginal portion of each stack are converted into arcuate passages adapted to more readily receive the convolutions of spirals serving to pivotably couple the sheets of the stacks to each other. This is accomplished by inserting into one or both ends of some or all of the holes a discrete pin-shaped displacing member which is thereupon pivoted to thus shift at least some of the sheets relative to the neighboring sheets. In order to speed up the shifting of sheets, the displacing member or members is or are pivoted during withdrawal from the respective hole or holes to move its or their tips along arcuate paths at least approximating the curvatures of the convolutions which are to be introduced into the thus converted holes.
摘要:
A shaping part for producing books with round spine includes a frame (3, 5, 7, 10), which defines an essentially rectangular inner space, and in the inner space of which a plurality of vertically adjustable lamellae, whose orientation at right angles to the plane of the frame is predetermined by the frame, are arranged next to one another. Any desired profile surface, preferably in the form of a radius, can be formed by a suitable displacement of lamellae located next to one another. To absorb strong normal forces during pressing, the lamellae are braced against one another. The lamellae can be heated by contact with the heated carrier body for preforming the spine of books. The profile surface of the shaping part may be concave or convex.
摘要:
Apparatus for introducing magnetic spirals into rows of neighboring perforations in the spines of stacks of overlapping sheets which are to form discrete calendars, memo pads or analogous commodities employs an elongated guide for a continuous magnetic coil spring. The coil spring is rotated about its longitudinal axis and is moved lengthwise so that its convolutions enter successive perforations of the row of perforations in the stack being held in the guide. The guide embodies or cooperates with magnets which maintain the convolutions of the coil spring in the path defined therefor by the guide. The magnets can be embedded in antimagnetic tubes forming part of or constituting the guide.
摘要:
The invention concerns a system and a method for preferably on-line providing stapled and folded booklets with a square back. The system comprises means (1a, 1b) for feeding a booklet (H) forwardly and in reverse Furthermore, there is a stopper (2a) for stopping a fed-in booklet, two elongated bars (4, 5) adapted to clamp the booklet (H) between them, and displaceable means (9) for engaging a booklet clamped between the elongated bars (4, 5) for lending the back of the booklet square shape. In the method, a booklet (H) is fed in between two elongated bars (4, 5) to a stopper (2a), whereafter the elongated bars (4, 5) clamp the booklet (H), a movable member (9) is urged against the back of the booklet (H) so as to make it square-shaped, the elongated bars (4, 5) are moved apart, and the completed booklet is fed out in reverse.
摘要:
The backing of a previously rounded book block is accomplished, while the book block is clamped between oppositely disposed gripping jaws, by subjecting the spine region of the book block to composite forces resulting from imparting a swinging motion along an arcuate path to a pressing beam carrier, to cause the pressing beam to bend the book block sheets outwardly away from the center line of the block, and superimposing tangential sliding motion on the pressing beam as it acts on the book block in the region adjacent the edges of the spine to thereby controllably form creases in the opposite sides of the block.
摘要:
For aligning the binding perforations of a pile of sheets, straight prongs are inserted in the perforations and, during their withdrawal, are moved in non-positive manner in the direction of a curved shaped surface, so that the tip area of the prongs presses the back of the pile against the shaped surface and consequently the desired curved shape of the perforation is obtained.