摘要:
A system for the transfer of an individual folded carton from a supply of folded cartons to a conveyor for further processing using a vacuum unit that is reciprocated over an arcuate path and wherein vacuum is applied to the vacuum unit immediately prior to its contact with a first one of a supply of folded cartons so as to secure the first one to the vacuum unit and the vacuum is discontinued from the vacuum unit after the vacuum unit and the first one of the folded cartons have moved away from the supply of folded cartons through a distance less than about three inches.
摘要:
A can body maker apparatus including a stationary support frame; a housing having forming and ironing dies located therein mounted on the support frame; an elongated ram; a reciprocating ram drive; and a redraw assembly which includes a redraw sleeve for supporting a can body preform thereon; a redraw carriage for supporting and axially displacing the redraw sleeve relative the ram; a redraw electromagnetic coil fixedly positioned relative the stationary support frame; and a permanent magnet fixedly mounted with respect to the redraw carriage in displace relationship with the coil along the coil axis for co-acting with the electromagnetic field produced by the coil for controllably reciprocatingly displacing the redraw carriage. Also, apparatus is provided for applying a force on the redraw sleeve while the redraw sleeve is in contact with the can body preform so that the redraw sleeve applies a pressure on the can body preform and control apparatus for controlling the amount of force applied on the redraw sleeve.
摘要:
A device and method for flash suppression in a molding with rotation system having a non-rotating mating surface capable of venting gases during the molding process while simultaneously suppressing flash. Flash is directed inwardly and away from the mating surface and contained between a mandrel and mandrel housing in a low pressure reservoir which is completely separate from the mating surface. A cooling fluid is utilized to carry away flash particles from the low pressure reservoir and thereby further prevent contamination of the mating surface.
摘要:
A method is provided for forming an end closure for a surrounding sidewall of a container, such as an aluminum can. The method includes forming a central body panel oriented transversely to the central axis of the can and forming an outer surrounding margin portion joined to the sidewall such that the margin portion has a support section oriented longitudinally relative to the sidewall. A portion of the margin is corrugated to provide a rib structure having longitudinally extending first rib components located on the support section. This method can be accomplished during the ironing and doming of a can.
摘要:
A can body maker apparatus of the type having an axially reciprocal ram member and an axially reciprocal redraw carriage comprising a ram position sensing assembly for sensing the position of the ram member and for generating a ram position signal in response thereto; an electromagnetic bearing assembly for frictionlessly radially supporting and aligning one end of the ram member with a predetermined ram displacement path; an electromagnetic redraw carriage actuator for applying magnetic force to the redraw carriage for reciprocating the redraw carriage; and a control assembly for selectively energizing and deenergizing electromagnets in the electromagnetic bearing assembly and the electromagnetic redraw assembly in response to the ram position signal, also, an electromagnetic doming apparatus is provided for shaping the bottom portion of the can body.
摘要:
A redraw apparatus is provided for a can body making apparatus wherein the redraw carriage of the redraw apparatus is mounted for substantially friction-free sliding reciprocating movement over a pair of spaced apart support posts which are fixedly mounted on the housing holding the can forming and ironing dies. Also, a counterbalancing system is provided for applying a force to counterbalance the weight of a portion of structures used to reciprocate the redraw carriage. Additionally, a raw assembly is provided for supporting a ram for movement through the redraw apparatus and the can forming and ironing dies wherein a pair of spaced apart elongated shafts are fixedly mounted and a ram carriage having the ram attached thereto is provided with liquid bearings using liquid coolant comprising water having solubles contained therein for mounting the ram carriage on the elongated shafts for substantially friction free movement thereover. A guide liquid bearing is also used to ensure proper alignment of the ram. Also disclosed in a reciprocating ram which is supported solely by a liquid bearing wherein the liquid bearing using liquid coolant comprising water having solubles contained therein has a sufficient length to ensure the proper alignment of the leading portion of the elongated ram as it engages a can blank in a redraw assembly and moves it through the forming and ironing dies to form an elongated can body.
摘要:
An injection mold apparatus for forming molded plastic articles comprising a polymer supply source; a mold cavity; conduit connecting the mold cavity and the supply source; an injection assembly for injecting molten polymer into the mold cavity and a gate valve associated with the conduit and having an elongate central passage terminating in an outlet orifice and a needle positioned in skewed relationship with the elongate central passage and selectively insertable into the orifice in a closed position and retractable from the orifice and the elongate central passage to provide an unrestricted polymer flow in an open position.
摘要:
An end closure for a container, such as a beverage or food can, includes a transverse central body panel and a surrounding outer margin joined to the longitudinal side wall of the container body. The margin portion has a support section, and a plurality of spaced rib structures are located on the margin and have portions that extend longitudinally along the support section to reinforce the margin. The end closure can be a lid or an integrally formed bottom for a can body. The margin can have a U-shaped profile with the rib structures located on either the inner or outer wall portion thereof. The rib structures may be flutes defining tear-dropped shaped depressions. The invention contemplates a can body with the end closure forming the bottom thereof. A method is described for forming such end closures and containers.
摘要:
A coating station for an apparatus and method used to coat at least one side of a pontinuous strip of material includes a housing having a conduit that connects to a source of coating material, a fluid dispensing passageway and a wick that contacts the strip. The passageway has an intake port and a discharge port. A metering member is interposed in the passageway, and a drive rotates it about an axis between the intake and discharge ports. The metering member has a metering bore, and a reciprocating metering piston is disposed in the bore. The metering member may be a cylindrical shaft, and one or more metering bores extend diametrically through the shaft with each being provided with a piston to dispense predetermined amounts of coating material onto the strip.
摘要:
A forming apparatus for doming containers employs a pair of pistons, a pressure ring and doming die. One piston carries the pressure ring, and the other piston carries the doming die. The pistons are mechanically linked so that they move in a counteracting manner thus reducing the stroke distance necessary to dome the container. This further reduces the impact energy on the container. The mechanical linkage is preferably pairs of rack and pinion gears moving the pistons in opposite directions of travel.