摘要:
A low-spread metal elongated bottle and its production method are described for reducing rejection rates associated with the production of metal bottles at high speeds. The elongated bottle includes a sheet metal formed body. The sheet metal has a low spread between a yield state corresponding to the yield stress of the sheet metal and an ultimate tensile state corresponding to the ultimate tensile stress of the sheet metal. The body further includes a concave bottom portion having a circular perimeter. A cylindrical portion extends from the circular perimeter of the bottom portion and has a uniform diameter. A neck portion extends from the cylindrical portion and has a tapered profile. The neck portion may include a threaded portion including threads exposed on the outer surface of the neck portion or an area for crimping of a crown.
摘要:
A conveying apparatus with a first conveyor and a second conveyor is used a the welding apparatus and a welding method for container bodies and in particular can bodies between which conveyors the object to be welded is handed over. A control unit determines the take over position and/or the conveying travel of the second conveyor and controls the conveyors accordingly, so that the take over occurs at the determined position and/or with the determined conveying travel of the second conveyor. This allows an easy and swift changing of the welding apparatus to different sizes of the objects to be welded.
摘要:
To produce can bodies, a continuous can jacket is disclosed, that is sealed by way of a first joint is produced from a flat metal material. At least one sealing element is mounted on the continuous can jacket by way of an additional joint. At least one of the additional joints is configured as a laser welding seam, which forms an annular continuous sealing seam between the continuous can jacket and the sealing element(s). Before the sealing seam is welded, complementary seam contact surfaces of the can jacket and the sealing element are configured as annular continuous edge regions that flare out of narrow towards the can axis. To weld the sealing seam, the can jacket and the sealing element(s) are pushed together until the edge regions make contact, one of the end faces of the two edge regions lying on the interior of the can body and the other lying on the exterior of the body. This enables the air-free welding of the seam contact surfaces, thus guaranteeing an impermeable welding seam even with the use of extremely thin metal sheets. The material overlap in the vicinity of the sealing seam is minimal.
摘要:
A method for marking tin coated sheet metal blanks is provided in which the marking is indicative whether the blank comprises an edge region that includes a tin coating thicker than the rest of the blank. This marking is preferably brought on the blanks when a plurality of blanks is cut from a sheet metal plate. In the alternative the marking may have been applied to the sheet metal plate already. The sheet metal blanks thus marked are provided in form of a stack comprising marked and unmarked blanks, depending on whether there is a thicker edge region coating present on the individual blank or not. When making container bodies of these blanks by de-stacking and rounding the sheet metal blanks and welding the longitudinal seam of the rounded container body blanks, the marking is read in the container making apparatus and at least one welding parameter is changed for welding container body blanks with a marking in comparison with container body blanks without marking.
摘要:
A pre-rounding element (14) is used in a rounding apparatus (4) for rounding can body blanks from sheet metal blanks. The lower element part (22) of the pre-rounding element (14) is displaceable by an actuation element (23). This allows the adjustment of the pre-rounding element even during operation of the rounding apparatus. Preferably a measurement of sheet metal blank properties takes place. The measurement may include a thickness measurement and/or a strength measurement of blanks. The pre-rounding element is controlled in dependency of the measurement result. This allow a constant rounding result even with varying sheet metal properties.
摘要:
To produce can bodies, a continuous can jacket is disclosed, that is sealed by way of a first joint is produced from a flat metal material. At least one sealing element is mounted on the continuous can jacket by way of an additional joint. At least one of the additional joints is configured as a laser welding seam, which forms an annular continuous sealing seam between the continuous can jacket and the sealing element(s). Before the sealing seam is welded, complementary seam contact surfaces of the can jacket and the sealing element are configured as annular continuous edge regions that flare out of narrow towards the can axis. To weld the sealing seam, the can jacket and the sealing element(s) are pushed together until the edge regions make contact, one of the end faces of the two edge regions lying on the interior of the can body and the other lying on the exterior of the body. This enables the air-free welding of the seam contact surfaces, thus guaranteeing an impermeable welding seam even with the use of extremely thin metal sheets. The material overlap in the vicinity of the sealing seam is minimal.
摘要:
Two destacking tables and two can body forming stations are provided, the latter forming cylindrical can bodies from the metal sheets stacked on the destacking table. These can bodies are subsequently conveyed along the feed axis to the welding station, which welds the longitudinal seam of the can bodies. The provision of two destacking tables and two can body forming stations enables these elements to operate at the cycle rate of the welding station. This permits welding to be effected with an increased cycle rate, with reliable feeding of the can bodies despite this.
摘要:
A process for producing sheet-metal jackets, especially for pallet containers with an inner container of a synthetic resin, wherein a rectangular cut-to-size sheet-metal blank, the narrow sides of which are folded over into rims, is bent into a tubular member (15), and the rims (11a, 12a) of the tubular member (15) are hooked together. From the interlocked rims (11a, 12a), a series of spaced-apart connecting straps (16) is shaped by cutting and embossing toward the outside in a series parallel to the rims (11a, 12a) while leaving undeformed the rims between the spaced-apart portions. The rims (11a, 12a) are locked with respect to each other by a wire (17) pulled through the connecting straps (16), and the thusproduced tubular member (15) is shaped on a stretching press into a sheet-metal jacket.
摘要:
When shaping a film cartridge having a hollow cylindrical shell and caps mounted on ends of the shell, a shell plate is brought into abutment with a mandrel having a perfectly circular cross section and bent around the mandrel by a bending roller. A cap is mounted on an end of the hollow cylindrical shell while it is on the mandrel, and the cap is clinched to the hollow shell while the cap and the hollow shell are grasped from the outside.
摘要:
A frame-like roller carrier (40) which defines a sizing plane (C) normal to the longitudinal axis (A) of the can bodies is arranged in relation to awelding device (24) in such a manner that the sizing plane (C) coincides at least approximately with a welding plane (B) defined by the welding device. A plurality of sizing rollers (41) are mounted on the roller carrier (40), each for rotation about a roller axis (E) lying in the sizing plane (C). The sizing rollers (41) form a rigid ring of rollers through which the can bodies (1) can be moved. The roller carrier is divided into two half-frames (40), each of which carries a plurality of sizing rollers (41). The two half-frames (40) are adjustably supported on a common bridge (31). At least one of the half-frames (40) is connected to the bridge (31) by an adjusting drive (37) for the adjustment of the sizing rollers (41) carried by it. Consequently, the sizing tool (30) can be adjusted with little labor, for example if the overlapping width of the can longitudinal edges to be welded to one another has to be altered.