摘要:
The invention relates to an apparatus for producing bags from flexible-tube pieces which comprise woven fabric made of drawn plastic strips, wherein the woven fabric is provided with a polymer coating. According to the invention, the transporting path of the flexible-tube pieces in such apparatuses has arranged in it at least one sensor, which is able to sense the precise position of the woven-fabric edges of the flexible-tube pieces. Also provided are means which influence the movement sequences in the at least one following base-opening station in accordance with the position sensed for the flexible-tube portions.
摘要:
The invention relates to a device (1) for producing sacks from tube pieces, comprising: a transport device (45) by means of which the tube pieces can be transported in a transport direction (x) transverse to the direction of extent (z) of the tube pieces, to processing stations (8, 9, 10, 11); a base opening station (8) by means of which open end segments can be generated by folding over regions of at least one wall of the tube piece about folded base edges at at least one end of the tube piece; a closing station by means of which the open base rectangles can be closed to form bases by folding over parts of the walls and/or tabs about further folded edges of the open base rectangles; an embossing device (26, 26') by means of which at least one part of the base folding edge and/or the further folded edges can be embossed into the tube pieces and which comprises an embossing element (28) and an associated counter element (29); and a folding device by means of which areas of both walls can be folded over about the folded base edges by greater than 90 degrees, in order to be able to bring the embossing element (28) and the associated counter element (29) into contact with the same wall of the tube piece.
摘要:
The invention relates to a device (1) for transporting flat objects (5), preferably hose sections or sacks. Said device (1) comprises at least one transport element (2), which transports the flat objects (5) in a transport direction (z). The device (1) comprises at least one opposing surface (13) to the transport element (2), said transport element (2) and opposing surface (13) being arranged in such a way that a clamping force is exerted between the transport element(s) (2) and the opposing surface (13). The force maintains contact between the flat objects (5) and the transport element (2), at least for some part of the transport of the objects (5) in the device (1). The invention is characterised in that the transport element (2) comprises at least two driver elements (4), which can be displaced in the transport direction (z) and which are offset in relation to one another in the transport direction (z) for transmitting at least part of the clamping force to the flat objects (5).
摘要:
The invention relates to an apparatus (1) for producing bags from tubular pieces (13), which preferably comprise woven fabrics made of small stretched plastic tapes and are composed of two walls lying one on top of the other. Said apparatus comprises at least one transport device by means of which the tubular pieces (13) can be transported to the individual processing stations (8, 9, 10, 11) in a transport direction (x) that extends transversely to the extension direction (z) of the tubular pieces (13), at least one bottom opening station (8) by means of which open end sections can be produced at at least one end of a tubular piece (15, 15') by folding areas of at least one wall of the tubular piece about folded edges (36), and at least one closing station (10, 10') by means of which the open bottom squares can be laid and closed into bottoms by folding parts of the walls and/or tabs about further folded edges (36), and at least one embossing device by means of which at least one part of the later folded edges (36) can be embossed into the tubular pieces (13).
摘要:
The invention relates to a device (1) for opening ends of hose pieces (13) to open bottom squares (14) comprising two walls lying one on top of the other, said device comprising at least one transport device for feeding the hose pieces (13) in the horizontal position in a transport direction (x) that runs perpendicular to the direction (z) in which the hose pieces extend, and comprising at least one means (15) for opening the bottom squares (14), said means (15) capable of moving in the direction of extension (z), the upper wall of one end of a hose piece (13) being able to fold back into itself to form an open bottom square (14). The at least one means (15) for opening the bottom square (14) is able to move at least part of the time simultaneously in the transport direction (x) and in the direction of extension (z) of the hose pieces (13).