摘要:
An apparatus and related method for forming a single face paperboard web are disclosed. The apparatus of the present invention includes a forming corrugating roll for corrugating flutes on a medium web and a carrier corrugating roll operably connected to the forming corrugating roll for carrying the medium web into contact with a liner web. A bonding nip is defined by the carrier corrugating roll for pressing the liner web into adhering contact with the medium web, thereby forming a single faced web. A steam supplying device, including at least one fluid port in fluid communication with the bonding nip, supplies a low pressure steam against at least one of the liner web and the medium web. The steam supplying device further includes a body having a heated surface facing one of the liner and the medium webs. A primary channel extends within the body and is in thermal communication with the heated surface. A high pressure steam is supplied to the primary channel for heating the heated surface. A plurality of secondary channels extend within the body and are in fluid communication with the plurality of fluid ports. A low pressure steam is supplied to the secondary channels for release by the plurality of fluid ports within the bonding nip to assist in the rapid gelatinization of glue between the liner and medium webs.
摘要:
The invention is directed to a floating air seal for a cylindrical rotatable member having a sealing member adjacent to the rotatable member for preventing air from flowing between the seal and rotatable member, and resilient member for biasing said seal member towards a rotatable member. The floating air seal is preferably used in an apparatus for manufacturing single faced corrugated board.
摘要:
One-sided corrugated cardboard machine comprising a first fluted roller and a second fluted roller in meshing engagement with each other and between which a web of cardboard is introduced to be corrugated, the second fluted roller being provided in the circumferential outer surface thereof with several annular grooves arranged at axially spaced intervals, and a device which during the movement of the web of corrugated cardboard from the position of engagement between the second fluted roller and the first fluted roller to the position of engagement between the second fluted roller and an auxiliary roller biases the web of corrugated cardboard with a vacuum pressure via the suction grooves, wherein the second fluted roller has suction boxes associated therewith one each at the inlet and the outlet of the web of cardboard, said suction boxes respectively extending only over a small portion of the circumferential region of the fluted roller not covered by the web of corrugated cardboard and being closed on the side facing the fluted roller except for small openings in the region of the suction grooves, and wherein on the sides of the suction boxes facing each other sealing elements are respectively engaging within the suction grooves.
摘要:
The invention is related to the technical field of cardboard-making machines, and in particular it concerns a device for holding paper close against a corrugating roller in a corrugated board-making machine.The technical problem to be solved is that of providing such a device, which, while being simple and applicable to virtually all of the corrugated board-making machines, can attain an efficiency level affording a significant increase of the machine production rate and quality.The problem has been solved by providing a device which comprises suction members having a number of flattened suction ports to fit at least in part in the indentations of a corrugating roller and being rigid with holders carried slidably on bars which extend parallel to the corrugating roller, said holders being guided along said bars by locating elements made rigid with the holders and inserted into said indentations in substantially direct contact relationship with the corrugating roller.
摘要:
In a single-face corrugator of the type in which the corrugated paper is held by suction against the lower corrugated cylinder, the latter includes, outside its inner chamber filled with saturated heating vapor, separate longitudinal channels in the peripheral body of the cylinder. Each channel is connected to the exterior via axial channels and elongate grooves machined in the periphery of the cylinder, and can be connected to a suction apparatus via two hollow and sealed circular arcuate sectors bearing on the part of the face of the cylinder associated with the holding region on the latter. The grooves are staggered and machined in circumferential portions of the periphery of the cylinder so as to extend over several corrugations thereof. An additional blowing sector permits detachment of the corrugated paper.
摘要:
A paper web is passed between a pair of first and second corrugating rolls to form corrugations therein. The second corrugating roll is provided with a plurality of longitudinally spaced annular suction grooves in communication with a suction device from which subatmospheric pressure is applied through the annular suction grooves to the corrugated web, while it is travelling around the second corrugating roll, retaining the corrugations in the flutes of the roll.
摘要:
A plurality of longitudinally spaced annular suction grooves are formed in one of a pair of corrugating rolls on the peripheral surface thereof and a plurality of suction manifolds are formed in the corrugating roll and extend longitudinally of the roll in intersecting relationship with the annular suction grooves.