摘要:
There is described a method of producing a sealed package of a pourable food product from a substantially tubular precut blank of sheet packaging material with opposite open ends. The method includes the steps of feeding the blank onto a relative forming mandrel; sealing one end of the blank to form a container open at the opposite end; removing the container from the mandrel; and sterilizing the container before filling it with the pourable food product; and the method also including the step of preheating the container by heating the mandrel before sterilizing the container.
摘要:
A machine for molding articles made of loose material, particularly for manufacturing stringers for loading pallets, comprising an upper mold part and a lower mold part, which can be moved mutually closer and can be mutually superimposed with the interposition of at least one layer of loose material in order to mold at least one article. At least one element for shaping at least one portion of the article during molding which is further provided, associated detachably with at least one among the upper mold part, the lower mold part and the layer of loose material.
摘要:
The invention refers to a method and device for ventilating a device for electron beam irradiation of a web (W), the method comprising the steps of: providing a first chamber (107) comprising a web inlet opening (115) and a web outlet opening (121), providing a second chamber (111) extending inside the first chamber (107), the second chamber (111) comprising a web inlet opening (114), a web outlet opening (112), and an electron exit surface (21) through which electrons are adapted to be emitted into the second chamber (111), passing the web (W) through the second chamber (111), and creating a flow of a gaseous fluid through both the first and second chambers (107, 111) in a direction opposite the direction of travel of the web (W) by supplying said fluid into the web outlet opening (121) of the first chamber (107) and providing at least one outlet (113).
摘要:
A packaging container or blank therefor, suitable for carrying out quality control of the packaging container or packaging container blank, includes a package or blank having one or more poles (12) for interconnection with electric quality control equipment (24). The packaged product (20) will be directly or indirectly accessible, whereby both the quality of the packed product and the tightness of the surrounding packaging container (1) may be determined in a rational and partly automated manner. This is of particular importance in the production of aseptic packaging containers for, for instance, ready-made, heat-treated soups or similar foods.
摘要:
The invention relates to a double-seat valve, particularly for aseptic applications, having at least two line connections (3, 4, 7), between which two annular valve seats (11, 12) are disposed coaxially with one another and in series, having two closers (8, 9), which are axially closable independently of one another and which in the closed state cooperate sealingly with the valve seats (11, 12) and between them enclose a hollow chamber (34), and having at least one cleaning connection (35, 36), discharging into the hollow chamber (34), for introducing a cleaning medium. To overcome the disadvantages of a fluidically unfavorable leakage hollow chamber, it is provided according to the invention that a one-piece, annularly encompassingly designed elastic sealing element (21) is secured sealingly in each case by its two end portions (22, 23) to the two closers (8, 9), with one sealing face (25, 26) embodied adjacent to each end portion (22, 23), the sealing face being pressable by a closer (8, 9) against the associated valve seat (11, 12), and that the sealing element (21) has a roller diaphragm portion (24), which connects the two end portions (22, 23) to one another and defines the hollow chamber (34).
摘要:
A method of carrying out quality control of a packaging container or packaging container blank comprises providing a package or blank having one or more poles (12) for interconnection with electric quality control equipment (24). The packaged product (20) will be directly or indirectly electrically accessible, whereby both the quality of the packed product and the tightness of the surrounding packaging container (1) may be determined in a rational and partly automated manner. This is of particular importance in the production of aseptic packaging containers for, for instance, ready-made, heat-treated soups or similar foods.
摘要:
In packing machines which have a filling pipe with two or more ducts, a rinsing of the filling pipe with cleaning fluid may lead to only one duct being properly cleaned. In order to prevent this, an arrangement is provided on packing machines which have a coupling part provided with valves with passages which are coupled in series with respective ducts in the filling pipe. The valve is adapted so that it is acted on towards the closed position by the cleaning fluid flowing past and thus limits the flow through the one duct so that the other duct too is assured of an adequate flow for effective cleaning.
摘要:
A method for producing a container comprising a sleeve-like main portion and an end piece attached to the main portion; the method comprises the steps of: advancing, along a given path, at least one forming member having an axis transversal to the path, and delimited by a top surface and by a lateral surface extending around said axis; feeding the end piece on the top surface of the forming member; wrapping a sheet of packaging material around the lateral surface of the forming member such that the opposite side edges of the sheet parallel to the axis overlap one another; joining the overlapped edges of the sheet by a longitudinal seal so as to form the sleeve-like main portion of the container; and joining a peripheral edge of the end piece to an upper end of the sleeve-like main portion by a transversal seal extending around the axis.
摘要:
The present invention refers to a device for electron beam irradiation of at least a first side of a web, the device comprising a tunnel through which the web is adapted to pass, said tunnel being provided with a web inlet portion, a web outlet portion and a central portion adapted to receive at least a first electron beam emitter provided with an electron exit window through which electrons are adapted to be emitted into the tunnel. The tunnel is being angled at least two locations in each of the inlet portion and the outlet portion in such a way that any X-ray formed during the electron beam irradiation of the web is forced to hit the tunnel wall at least twice before exiting the tunnel.
摘要:
A process and apparatus for adding glue to a flow (L) of loose wooden material, in particular a flow of wood chips and fibers, in which the wooden material is introduced through an inlet (3) into a mixer device (4). The glue is sprayed onto the flow of wooden material, internally of the mixer device (4), by nozzles (21) arranged in proximity of the inlet (3). The mixer device (4) is crossed by a flow of hot air. The wooden material, mixed with the glue, after having crossed the mixer device, drawn by the flow of hot air, is removed via an outlet (10) and sent on to subsequent work operations. The invention serves in particular in the manufacturing of wood-chip and fiber panels. The panels obtained are of high quality, being practically devoid of surface imperfections.