摘要:
An apparatus of this invention includes first and second supply rolls of wrapping film sheets. The film sheet is fed from first supply roll to a wrapping machine. The distal end of the film sheet of the second supply roll is partially fixed by an adhesive tape. In this state, the film sheet cannot be fed from the second supply roll. The second supply roll can be rotated in the forward or reverse direction. The apparatus also includes a knife for cutting the adhesive tape of the second supply roll. When the remaining length of the film sheet fed from the first supply roll becomes short, the knife is brought into contact with the outer surface of the second supply roll. By utilizing the rotation of the roll, the knife is inserted under the distal end of the film sheet of the second supply roll. Thereafter, the knife is moved along the outer surface of the second supply roll in the axial direction thereof, thereby cutting the adhesive tape of the second supply roll. The apparatus also includes a belt conveyor for feeding the film sheet fed from the second supply roll to the feed path of the film sheet fed from the first supply roll.
摘要:
Apparatus for splicing a replacement web to a moving web comprises a guide for guiding the moving web along a predetermined path. A cutter severs a portion of the replacement web to establish the leading edge thereof; and a splicing station is positioned in the path of movement of the moving web for splicing the leading edge of the replacement web to the moving web while the latter is moving.The splicing station, which is constructed and arranged to establish a lap joint between the leading edge of the replacement web and the moving web, comprises a delivery device that includes a splice strip having adhesive on one surface, a device for positioning the strip in a direction perpendicular to the direction of the moving web, and a device for moving the replacement web in a direction perpendicular to the direction of the strip and into engagement with the adhesive surface of the strip in such a way that about half the width of the strip is covered by the leading edge of the replacement web which adheres to the strip, and the other half of the strip is uncovered exposing the adhesive. Finally, a device is provided for moving the strip and the replacement web adhered thereto relative to the moving web such that the exposed adhesive on the surface of the strip engages the moving web which is thereby adhered to the strip.
摘要:
An oil sealing bearing for an axially reciprocating shaft is provided.Tobacco products are evaluated in terms of their fragrance or aroma, however the reciprocating shaft through the oil sealing bearing is required to effect its function reliably and very quickly, that is the reciprocating shaft requiresa slide bearing which offers low frictional resistance and have a long life with a sufficient lubricating oil, and further requires a perfect oil seal effect lest the lubricating oil should blot onto any processing section where tobacco is loaded.The oil sealing bearing comprises two slide supports, a cap member and an annular oil scraper. The annular oil scraper serves to scrape off excess oil in an oil film formed non-uniformly on the surface of an axially reciprocating shaft and is disposed in a bearing body such that it is always in a coaxial relation to the shaft regardless of even very quick radial displacement of the shaft in the bearing body. Thus, it is possible to obtain an oil sealing bearing which can eliminate the possibility for lubricating oil to be brought into a packing zone where packing of tobacco products is being done.Therefore, even in the case of high speed of the shaft, the bearing can obtain competing requirements such as the oil seal effect and fragrance of tobacco products.
摘要:
Apparatus for automatically threading the leading end of a web spooled on a reel into one end of a conveying passage includes a draw-out lever having a web support surface and movable to a first position at which the support surface engages the web spooled on the reel. A nipping finger is provided which is actuatable to trap the leading end of the web against the surface when the lever is in its first position. The lever is movable to a second position at which the support surface is spaced from the web spooled on the reel for unspooling the web from the reel. A feed mechanism is made effective after the lever is moved to its second position, and after the nipping finger has been deactuated, for engaging the unspooled web and feeding the leading end thereof into the conveying passage.