摘要:
A folding device for folding a sheet (12) of thin material, such as paper, comprises a first sheet holder (4, 10) for holding a first portion of the sheet, a second sheet holder (2, 8) for holding a second portion of the sheet (12), and a pivoted linkage (6) connecting the first sheet holder (4, 10) to the second sheet holder (2, 8) in such a way as to allow relative movement between them. In use relative movement between the holders causes the sheet (12) to be folded in opposite directions along two lines (30, 32) so as to form a zig-zag shape.
摘要:
An envelope forming apparatus has a vacuum table (36) with apertures (48) through which a vacuum is applied onto the surface of the vacuum table. A series of parallel endless belts (42) move across the vacuum table and transport an envelope blank across the vacuum table. The vacuum through the apertures in the vacuum table holds the blank on the belts as they move across the vacuum table and as the blank is folded by a plowshare folder located relative to the vacuum table. Alternatively, a single wide belt with apertures may be substituted for the series of parallel belts.
摘要:
A method and an apparatus for folding pliable material, such as documents, which may differ in quality and length and which are conveyed in assembled form or succesively in a transport track. The material is provided with a fold by bending the leading edge and a contiguous portion of the material out of the plane of transport, creating a folding area by guide means and forming the folding edge by folding means. The bending out of the plane of transport of the leading edge and the contiguous portion of the material takes place during the conveying of the material, the bringing into a tubular form of the material, the flattening of the tubular form, and the feeding of the material in that flattened form to the folding means. The apparatus comprises a transport track with feeding means and, as viewed in transport direction, folding means arranged downstream thereof, as well as guide means arranged between the feeding and the folding means. The guide means form a composite hollow body having a substantially tubular inner surface and an insertion opening.
摘要:
A device for the manufacture of a hose package formed by folding of a hose of flexible material, where the hose package consists of folds adjoining one another and consisting of wall elements formed on folding and connected to one another. The elements are situated outside one another in relation to a central axis of the hose package. The device includes fixing means (10a), lower folding means (11) and upper folding means (12) said folding means (11,12) having the shape of polygons. Through a controlled sequence of movements the means just mentioned form the folds situated outside one another, and thereby the hose package. The folding means are composed of plates (13,14; 15,16) which are placed adjoining one another, the plates in end regions (130,140; 150,160) adjoining one another forming corners (17,18) in a polygon presented by the respective folding means. In the respective corner region the plates are arranged at a distance from one another so as to form an opening (45) or a gap (46) respectively between themselves.
摘要:
A method and an apparatus for folding paperlike material, such as documents, which may have different quality and length and are conveyed in assembled form or successively in a transport track, said paperlike material having a leading and a trailing edge and being provided with a fold at a location between its leading and its trailing edge by bending the leading edge and the contiguous portion of the material out of the transport track during conveying of the material until the trailing edge reaches a predetermined position and creating a sharp folding edge by bringing the edge to be folded between folding means by a folding blade moving substantially in the transport track.
摘要:
A folding apparatus in which an intermediate span of a signature (S) at the folding station is buckled by a pair of oppositely driven signature feeding surfaces (14,15) into the nip of a pair of converging signature folding and feeding surfaces (12,13) which fold the signature and feed it from the folding station.
摘要:
Um an einer Taschenfalzmaschine (1) die Falztaschen (2) gemeinsam oder einzeln in ihrer Längsrichtung verschieben zu können, wird seitlich von den Falztaschen (2) senkrecht zu ihnen auf wenigstens einer Seite eine Welle (10) am Maschinenrahmen (3) gelagert, auf der Treibelemente (12, 22, 32) sitzen, die mit jeweils einem getriebenen Glied an der Falztaschenlängsseite in Eingriff bringbar sind, wobei die Welle (10) über einen Antrieb (7, 8, 9) in Drehung versetzt wird.
摘要:
Bending or folding a sheet of material (13; 30; 54, 64) from a flat into a three dimensional form, the sheet having groups of hinge lines 16, by means of two frame members (1, 2; 41,42) movable vertically relative to each other, one frame (1; 42) having sheet supporting parts (11; 21; 61) mounted for movement in the plane of the frame and pivotally attached to one group of hinge lines (16) and the other frame (2; 41) having sheet supporting parts (11a, 11b, 22; 51) mounted for movement in the plane of the frame and pivotally attached to a second group of hinge lines (16) relative vertical movement of the frames (1, 2; 4642) causing the sheet to bend about the hinge lines and assume the three dimensional form. Each frame (41, 42) and one sheet (54, 64) can form the upper and lower platens of a press in which means are provided to bring the sheets (54, 64) adjacent each other and simultaneously assume their three dimensional forms causing a deformable metal sheet sandwiched therebetween to be pressed into an identical shape.