Abstract: In some examples, a roll unwinder for a flying roll change includes a roll station for receiving a first material roll to be unwound, and a roll station for receiving a second material roll to be unwound after a roll change has occurred. A cut-off tool can sever a first web unwound from the first material roll, and includes a pressing element, to press the web against the outer surface of the second material roll. A supporting device can be transferred from an idle state into a working state in which the supporting device supports the web to be unwound, at least at the time of the severing process. The supporting device supports the web in a web path upstream from the cut-off tool. A receiving unit at a frame that carries the cut-off tool is movably mounted in the stand of the roll unwinder.

Abstract: The invention relates to a material roll preparation arrangement. The material roll preparation arrangement comprises a receiving apparatus for receiving a material roll to be prepared with a wound material web, and at least one material roll preparation apparatus which is assigned to the receiving apparatus for the preparation of the material roll which is received in the receiving apparatus for further processing, in particular in a corrugator plant.

Abstract: A conveyance device is capable of preventing a remaining portion of a cut sheet from being caught in a conveyance path. A sheet supply device includes an urging mechanism capable of switching between a supply state of applying force in a direction away from a pressing position to an upstream part, in a conveyance direction, of a cut position of a sheet of a supply side roll, the cut position being cut by a cutter, and a stopped state of stopping application of the force, and a controller configured to switch the urging mechanism from the stopped state to the supply state in accordance with a timing when the sheet is cut by the cutter.

Abstract: A supply device (3) for supplying substrate strips (10, 10?; 11, 11?) to a double-belt press (2) for pressing the substrate strips (10, 10?; 11, 11?) together includes unwinding stations (4, 5) each having an unwinding shaft (6, 7) for receiving a substrate strip roll (8, 9) and serving to unwind the substrate strips (10, 10?; 11, 11?) from the substrate strip roll (8, 9), at least one of the unwinding stations (4) having a force-measuring device with a measuring shaft (16, 17) around which one of the substrate strips (10, 10?; 11, 11?) can be wrapped, an auxiliary shaft (18, 19) being assigned to the measuring shaft, wherein the auxiliary shaft (18, 19) and the measuring shaft (16, 17) of the unwinding station (4) are moveable relative to each other between a guiding position for guiding the substrate strip (10, 10?; 11, 11?) from the roll of the substrate strip rolls (8, 9) through a gap between the measuring shaft (16, 17) and the auxiliary shaft (18, 19) and an operating position defining a pre-defined an

Abstract: Disclosed herein are embodiments of a tape splicing system for coupling a leading end of a staged tape to a trailing end of a running tape to form a continuous tape. The splicing system can comprise a connector having an opening for allowing the running tape to pass through, a leading end element having an opening for engaging the connector, and a trailing end element. The leading end element can be secured to the leading end of the staged tape and the trailing end element can be secured to the trailing end of the running tape. The connector can couple the leading end element to the trailing end element to splice the staged tape to the running tape.

Abstract: Disclosed herein are embodiments of a tape splicing system for coupling a leading end of a staged tape to a trailing end of a running tape to form a continuous tape. The splicing system can comprise a connector having an opening for allowing the running tape to pass through, a leading end element having an opening for engaging the connector, and a trailing end element. The leading end element can be secured to the leading end of the staged tape and the trailing end element can be secured to the trailing end of the running tape. The connector can couple the leading end element to the trailing end element to splice the staged tape to the running tape.

Abstract: A splicing device (13) and a method for the transport and feeding of plastic film (8) to a processing station. In this processing station the articles are wrapped in the plastic film (8) and the film (8) can subsequently be shrunk. This device includes a supply of film rolls with at least three separate film rolls (1 to 6) that are subsequently fed to a conveyor. The device furthermore includes a fixation device (20, 24, 26) arranged between the conveyor and the film rolls (1 to 6). The fixation device (20, 24, 26) fixes and joins the beginnings of film of new full film rolls (2 to 6) to the sheet of film currently fed into the processing device.

Abstract: A web joining apparatus and related method. The apparatus includes a turret arm which supports an old roll and a new roll around which band-state flexible support bodies are wound, a front pasting drum including a holding device holding the tip end of the band-state flexible support body of the new roll and a cutting drum provided with a cutting member with substantially the same length as the width of the band-state flexible support body. A projection amount is set so that only a single sheet of the band-state flexible support body can be cut off. The flexible support body of the old roll is cut off and the tail end of the flexible support body of the old roll and the tip end of the flexible support body of the new roll are joined as the band-state flexible support body is conveyed.

Abstract: In a method for splicing material webs and an associated splicing device it is envisaged, for producing an improved joint, to join the material webs in the area of cut edges essentially overlap-free to form an endless material web, the cut edges being produced by cutting the material webs at least along a first cutting direction and along a second cutting direction, and the cutting directions enclosing an angle ? such that 0°<?<180° applies.

Abstract: The unwinding device comprises: a rotating element (3) with supports (13, 15) for at least two reels (B1; B2; B3); a splicing member (31, 33, 35) to join a first web material (N1) coming from an expiring reel (B1) to the initial free end (T) of a second web material (N2) wound on a new reel (B2). At least one mechanical member (21) is associated with each support (13; 15), to retain the initial free end (T) of the reel disposed on the support, to hold the initial free end until splicing of the two web materials.

Abstract: A splicing device comprising: an elongated anvil having an elongated slot therein; an elongated splicing head having a pair of spaced apart tips extending therefrom and having a longitudinal aperture therein; a heating element in the longitudinal aperture; and an actuator mechanism for driving one of the tips toward and into the elongated slot to weld two overlying polymer films together and the other of the tips into cutting contact with a polymeric film from a spent roll of film. According to various preferred embodiments, the splicing device further includes a pair of retaining members on either side of the anvil that serve to retain films to be spliced in taut contact with the anvil during splicing, and a turret section for rotating full and spent rolls of polymeric film into position for continued operation and reloading.

Abstract: From a supply reel which is set in position at an ACF (Anisotropic Concuctive Film) feeding station, an ACF tape having an ACF laminated on one side of a liner tape is drawn out by an ACF bonding means. At least two reel mount members are provided on a reel stand at the ACF feeding station to mount two ACF tape supply reels concurrently thereon. The reel stand is connected to a switch means thereby to switch the two reel mount members either to an operating or tape supplying position or a standby position. As soon as an ACF tape from a supply reel in the operating position is consumed completely, a fresh supply reel in the standby position is switched into the operating position to continue the supply of the ACF tape.

Abstract: An air exhausting concave portion is provided on an outer peripheral surface of a paster roller that pushes a first web and a second web in their overlapped state. Both end portions of the outer peripheral surface of the paster roller are chamfered. The paster roller is formed like a crown shape.

Abstract: A fiberboard splice apparatus is made up of a fiberboard splice part for adhering an old fiberboard fed from one roll fiberboard to an end portion of a new fiberboard fed from the other roll fiberboard to accomplish fiberboard splice therebetween, and a fiberboard feed device for forwarding the new fiberboard from the other roll fiberboard to the fiberboard splice part. The fiberboard feed device includes one fiberboard feed roll placed along an axial direction of the roll fiberboard to make the other roll fiberboard rotatable in a state brought into contact with a surface of the other roll fiberboard and a pair of pickup members located to interpose the fiberboard feed roll therebetween for picking up a tip portion of the other roll fiberboard while coming into sliding contact with the surface of the other roll fiberboard.

Abstract: An air exhausting concave portion is provided on an outer peripheral surface of a paster roller that pushes a first web and a second web in their overlapped state. Both end portions of the outer peripheral surface of the paster roller are chamfered. The paster roller is formed like a crown shape.

Abstract: A wall is provided on one side of a web of paper or the like traveling along a predefined path, and an airstream is produced between the wall and the traveling web approximately in the direction of web travel. A transverse static pressure gradient is established across the airstream, causing the stream to flow close to the wall surface. This phenomenon is called as the Coanda effect. A partial vacuum created in the airstream causes the web to deflect from its normal path and to be drawn to the wall surface under sufficient pressure to be kept from fluttering. This method of web flutter control is applied to the splicing of webs, as from one roll to another in a web-fed rotary printing press. The web being unwound from the old roll has been susceptible to fluttering while being spliced to the new roll, such web fluttering being eliminable by providing a wall member along the web path and producing an airstream between the web and the wall member.