摘要:
There is described a shutter (30) for a valve (22) for controlling an air flow; shutter (30) is selectively rotatable about an axis (A) and adapted to be housed inside a body (25) of valve (22), and comprises a surface (45) disposed about axis (A); surface (45) comprises at least one first curved portion (46, 47) shaped eccentrically relative to axis (A) so as to define, in use and together with body (25), at least one first passage (56, 57) for the air flow.
摘要:
A method of packaging using packaging material with at least one layer of water soluble film to allow the sealing to be carried out at lower temperatures with the aid of steam/moisture and pressure. Process and apparatus for packaging in a water soluble film based packaging material using moisture/steam.
摘要:
The claimed invention relates to a device for stacking and compressing a plurality of soft elements. One purpose of the invention is to avoid damage to the soft elements due to excessive pressure. The device comprises a stacking shaft, drive means and movable receiving means arranged on two opposite sides of the stacking shaft, which receiving means in pairs are arranged in level with each other. Moveable compressing means are arranged on two opposite sides of the stacking shaft. Both the receiving means and compressing means are movable in a vertical direction. The receiving means are arranged to successively receive elements. Each pair of the compressing means is movable from above the stack for compressing the elements.
摘要:
A coupled mode digital filter which simulates any number of arbitrarily tuned modes coupled together so as to share the same loss element at a junction loaded by an arbitrary impedance function is formed from the combination of one first order allpass filter (28) and one unit delay (30) per mode and one shared coupling filter (36). This coupled mode digital filter may be excited by a stored or generated excitation signal, or a filtered excitation signal, to produce inharmonic percussive sounds and musically interesting two-stage and beating decay envelopes resulting from natural coupling of modes of near frequencies.
摘要:
This invention relates to a seal heating method and a seal heating apparatus for heating a seal portion of an opened end part, in order to fold and heat-bond an opened end part at a creased top end part or bottom end part during a paper container assembling operation. Out of opened end parts (1a, 1b) of a paper container (1), an inner seal portion (30a) is opposed to an inner circumferential surface heating element, and an outer seal portion (30b) to outer circumferential surface heating elements (4, 5, 6, 7, 13, 14, 15, 16). At least the inner circumferential surface heating element (8, 17) is swung on its axis so as to vary the positions on the inner seal portion (30a) upon which the hot air ejected from hot air ejection ports (8a) of the inner circumferential surface heating element (8) impinges. This enables a seal portion (30) of the paper container (1) to be heated uniformly and excellently.
摘要:
A method for processing of a web of packaging laminate in relation to fusing of two opposing edges thereof, comprises the steps of: heating a first edge region of the web on a first side, heating a second edge region opposing the first edge region, on a second side opposing the first side, folding the web of packaging laminate such that the first and the second edge region meets in an overlapping relationship to form a flattened tube, applying a pressure onto the overlapped edge regions, wherein the first edge region facing towards an inside of the flattened tube is heated by means of a flow of electrically heated air.
摘要:
The invention relates to a heating station for: i) receiving batches of packages (4) loosely wrapped in sheets (5) of a heat-shrinkable material, opposite ends of the latter overlapping and being interposed between the packages (4) and a porous conveying surface (P); and ii) sealing the overlapping opposite ends and heat- shrinking the sheets (5) about the batches; comprising a first and a second heat applicators (19, 20) operatively distinct from each other, for independently supplying a first and second thermal flows to the batches advancing on the porous conveying surface (P); the first heat applicator (19) being arranged below the porous conveying surface (P) to supply heat to the overlapping opposite ends, thereby sealing the sheets (5); the second heat applicator (20) being arranged above the porous conveying surface (P) to supply heat to the sheets (5) and complete the wrapping thereof.
摘要:
The invention relates to a heating station for: i) receiving batches of packages (4) loosely wrapped in sheets (5) of a heat-shrinkable material, opposite ends of the latter overlapping and being interposed between the packages (4) and a porous conveying surface (P); and ii) sealing the overlapping opposite ends and heat- shrinking the sheets (5) about the batches; comprising a first and a second heat applicators (19, 20) operatively distinct from each other, for independently supplying a first and second thermal flows to the batches advancing on the porous conveying surface (P); the first heat applicator (19) being arranged below the porous conveying surface (P) to supply heat to the overlapping opposite ends, thereby sealing the sheets (5); the second heat applicator (20) being arranged above the porous conveying surface (P) to supply heat to the sheets (5) and complete the wrapping thereof.
摘要:
There is described a folding unit (1) for producing packages (2) of pourable food products from sealed packs (3) having each a main portion (7) and opposite end portions (8, 9) arranged on opposite sides of main portion (7); each pack (3) comprising, for each end portion (8, 9), a fin (17, 18) and a pair of flaps (19, 20) projecting laterally from main portion (7); unit (1) comprises: a conveyor (60) which is fed with a plurality of packs (3) and which feeds the pack (3) along a forming path (B); and folding means (24) which interact with each pack (3) along forming path (B) to fold relative end fin (18) onto a relative end portion (8); conveyor (60) comprises at least a first and a second link (35a, 35b) articulated to each other; second link (35b) is arranged downstream of first link (35a), with reference to a first advancing direction of conveyor (60)along forming path (B); folding means (24) comprise: a slot (40) which is defined by first link (35a) and is adapted to receive said end fin (18); and a slide (72) operatively connected to second link (35b) and movable between a first position in which it at least partially engage slot (40), so as to fold said end fin (18) onto a relative said end portion (9), and a second position in which it is detached from slot (40).
摘要:
The invention relates to a hot gas nozzle adapted for heating an end section of a double tube, where the double tube comprises a first tube and a second tube, comprising a first and a second inner nozzle insert having outlet openings adapted to heat an internally located section in a double tube with hot air, where the hot gas nozzle further comprises a first and a second outer nozzle insert having outlet openings adapted to heat an externally and between the tubes located section of the double tube with hot air, which section after a sealing of the double tube will join the tubes. The invention further relates to a tube filling machine comprising a hot gas nozzle and a method for sealing and joining a double tube. The object of the invention is to obtain an improved sealing of double tubes.