摘要:
A process for adjusting the quantities of a liquid or paste food or pharmaceutical product dosed and dispensed by a doser-dispenser (20) in which the weight of at least every nth one of the recipients (101) filled by the same doser-dispenser (20) with a dosed quantity of the product (102) is measured, the number n being an integer between 1 and 1000. Each weight value measured is compared with a predetermined standard value and at least one of the end-of-stroke positions of the doser piston of the doser-dispenser (20) is adjusted step by step and during the operation of the doser-dispenser (20), in the sense of increasing or decreasing the stroke of the doser piston when the difference between the actual weight measured and the difference between the actual weight measured and the predetermined standard weight exceeds a limiting value. The adjustment is continued stepwise until the difference disappears.
摘要:
The invention concerns a method and device for sterilizing a packaging installation for food or pharmaceutical products. The sterilizing device comprises, on the one hand, at least one row of discharge tubes adapted to apply a heat-resistant sheet and obturating the base of a tunnel to be sterilized, against the lower end of the outlet tubulures of a metering/dispensing device, and on the other hand, at least one row of perforating members adapted to perforate the sheet and to create a passage therethrough for a sterilizing fluid while the discharge tubes and the outlet tubulures grip the heat-resistant sheet.
摘要:
An apparatus for sterilizing a thermoplastic strip moving forward stepwise and used in the production of hot-formed containers which, after forming, are filled and sealed in a sterile atmosphere, wherein prior to the strip softening operation, the surface of said strip which is subsequently to constitute the inside face of the containers, is exposed evenly and intermittently, in successive portions and for a very short period of time, to a temperature higher than that of the softening point of the said thermoplastic strip and which is dependent on the desired extent of bacterial destruction.
摘要:
The invention relates to the packing of liquid products. A piston, moving inside a cylindrical metering chamber, introduces successive quantities of liquid in pots via a tubular nozzle vertically movable, which can be entirely retracted inside the dispensing chamber and which is equipped with a truncated bubble trap for eliminating the gases issued from the liquid.
摘要:
The device according to the invention comprises a cylindrical metering chamber (10) of circular section and with an approximately horizontal axis, which, in its upper part, has an aperture (14) opening out into a reservoir (16) filled with product to be metered (12), and which communicates with an outlet channel (18) in which a slide valve (20) moves periodically between a high closing position and a low end-of-metering position; a vane (26) extending radially along a shaft (28) and capable of being driven with a rotary movement of controlled amplitude, during which the free end (30) of the vane (26) sweeps the cylindrical internal surface (32) of the metering chamber (10); and a flap (34) capable of translational movement and of entering the metering chamber (10) periodically to delimit a wall by tangential contact with the said shaft (28), and then withdrawing to allow a complete revolution of the vane (26).
摘要:
Forming apparatus for forming hollow articles from a thermoplastic web wherein a mold block and a counter-mold block are respectively provided with the same number of forming chambers and cylindrical cavities. Each cylindrical cavity contains a forming punch having an inactive top portion and an active bottom portion, which active bottom portion is suitable for penetrating vertically into the corresponding forming chamber. The inactive portion of each forming punch extends over an axial height that is less than the maximum width of the punch. Each forming punch is surmounted by a guide piston which slides in sealed manner inside the corresponding cylindrical cavity of the counter-mold block. The annular space beneath the guide piston is suitable for communicating periodically with a source of compressed gas via at least one link duct.
摘要:
In the doser-dispenser, the doser-piston 28 is carried by a first control tube 2 and the valve 32a forming with the central passage 32b of said piston 28 an intake valve 32 is situated on the side of the supply chamber 25 and is carried by a second control tube 35 guided in the first tube 2 and extending beyond the lower end of the latter. Each tube 2, 35 is surrounded by and integral with a bellows 6, 38 of which the inside is connected permanently to the outside atmosphere, the top end of the bellows being fixed either to housing 3 or to the lower end of the first tube 2. The second tube 35 with its intake flap 32a is controlled outside of the housing 3 by means of the piston 36 of a jack.
摘要:
The invention relates to a multi-layered thermoplastic container 1 opened by the partial peeling back of a multi-layer top 6 which has been heat-sealed onto the edge 3 of the container 1 including a peeling tab 7. The peeling tab 7 has a scalloped area cut into its edge 3 in such a way as to delimit a grip cavity which is open toward the side of the top 6 and of the edge 3, and, facing the area where the internal sheet 9 of the top 6 and the internal layer 4 of the container 1 meet. The intermediate sheet 10 has a tearing edge enabling the internal sheet 9 to be torn.
摘要:
The present invention relates to a process for the preparation and heat treatment of food products.In the process according to the invention, the mixing and heat treatment operations are carried out simultaneously by the injection, under pressure, of the concentrate and at least part of the constituting liquid, superheated to a temperature above about 100.degree. C., into a tubular chamber which is closed so as to prevent any vaporization of the constituting liquid.