摘要:
A manufacturing method of a structure by which a target member can be easily positioned with high accuracy. In a tilting step, at least one target member is positioned by tilting a positioning table and sliding the target member placed on the positioning table to bring the target member into contact with a locking portion.
摘要:
A separating system for separating individual container products from a frame assembly of plastic material, particularly polypropylene, has at least one stamping device (36) that at least partially separates the respective container product from a frame waste. By the stamping device (36) including a free fall body (52) separating the respective frame waste from the associated container product from an initial position during free fall, the separation can be carried out with very high speed (free fall) and additional mechanical components for applying a constraint force on the stamping body during the creating of the separating line can be omitted.
摘要:
A multifunctional detabber apparatus and method for producing bottles having a bottom surface with a hook projection integrally molded with and extending from the bottom surface in a deployed position. The bottom surface also includes at least one locking channel in order to receive and releasably secure the hook projection in a non-deployed position. The multifunctional detabber apparatus includes at least a grabber, a trimmer, and a hook closer. The grabber includes first and second jaws which surround the bottle and prevent movement. The trimmer includes first and second strikers for creating an outer periphery of the hook projection and an opening in the hook projection. The hook closer includes a mandrel that extends to bend and secure the hook projection in the locking channel in the bottom surface of the bottle.
摘要:
A blow molding method includes steps of moving a split mold to a parison receiving position where a parison is supplied and receiving a parison, closing the split mold, performing blow molding at a blow molding position, and opening the split mold at a product discharge position and thereby discharging a product. The method further includes steps of: sequentially reciprocating each split mold in trains of split molds provided opposed to each other across the parison receiving position to and from a position opposed to the parison receiving position; and sequentially reciprocating the split mold disposed at the position where the split mold is opposed to the parsion receiving position to and from the parison receiving position for performing blow molding. There is also provided a blow molding apparatus for carrying out this blow molding method.
摘要:
A method of twin-sheet vacuum forming plastic articles having the steps of clamping two parallel sheets of thermoplastic synthetic resin in a vertical orientation to a clamping tray and blowing air between the parallel sheets thereby creating a hollow cavity between the two parallel sheets. The two parallel sheets are then heated to molding temperature between two vertically oriented heaters. The two parallel sheets are disposed between opposing mold cavities of a vertically oriented split mold wherein the mold cavities have a contour conforming the configuration of the desired article. A negative pressure is applied to suction holes provided in the mold cavities which draw the two parallel sheets against each opposing mold cavity. The split mold is then clamped together to form a pinch off around the perimeter of the hollow cavity thereby forming a molded hollow part still disposed within the clamping tray. Simultaneously, a blow pin inserted into the hollow cavity injects compressed air further presses the heated sheets against the mold cavities. The molded hollow part is allowed to cool to a set point and the vertically oriented split mold is opened. The clamping tray is withdrawn from the split mold and shuttled away from the mold cavities where the molded hollow part is cut away from the clamping tray, still in a vertical position.
摘要:
A method of removing a flash portion from a container molded from an elastomer in which the flash portion is held stationary and the container is either inflated or deflated to increase or decrease the size of the container by moving the container walls whereby the stationary flash portions are torn or at least partially torn from the container walls.
摘要:
An apparatus and method for trimming a contoured non-round workpiece includes a torch for flame treating or trimming the workpiece by impinging a flame on the workpiece, a holding member for supporting the workpiece, the holding member being rotatably mounted relative to the torch, and a control member for cooperating the holding member with the torch so that the torch follows the contour of the workpiece when the holding member is rotated relative to the torch. The control member generates an electronic image of the workpiece and guides the torch along the contour of the workpiece in accordance with the image.
摘要:
A series of driven rolls for separating blow-molded products from segments of flash material in a string of products formed in a synthetic resin continuous molding machine. A first pair of rolls receives a string of products joined by flashes as the products are removed from the dies of a blow-molding apparatus. At least one of the rolls in the first pair of rolls is driven at a first rotational speed. An intermediate pair of rolls receives the string of products and flashes from the first pair of rolls, and the intermediate rolls are driven at a speed faster than the first rotational speed to stretch the string of products and thereby separate the flashing segments from the products. A pair of last rolls is spaced by an interval from the pair of intermediate rolls. The interval between the intermediate rolls and the last rolls is adjusted such that the products and the flashes can be sorted by length. The longer of the products and flashes are advanced through the pair of last rolls, whereas the shorter of the products and flashes drop through the interval between the rolls, thereby sorting the blow-molded products from the flash segments. Preferably, the distance between the pairs of rolls is adjustable to accommodate strings of products and flash segments of various configurations. Additionally, the last rolls are preferably driven at a speed faster than the intermediate pair of rolls to facilitate cutting and to quicken the advancement of material by the last rolls.
摘要:
An apparatus for extracting, trimming and discharging blow molded plastic bottles includes a rotary turntable and a plurality of bottle transfer units spaced around the turntable. A drive indexes the units past the stations at which bottles are extracted from mold halves in an inverted position, righted, trimmed and discharged to a take away conveyor.
摘要:
Blow molding apparatus for manufacturing containers, the apparatus having a blow station, a parison forming station to one side of the blow molding station, a container trim station at the other side of the blow molding station and a multiple station mold carrying slide for shuttle movement between a first position below the parison forming and blow molding stations and a second position below the blow molding and trim stations. The shuttling movement of the slide takes place between a pair of movable platens that are capable of opening and closing the molds. Improved structure in the apparatus insures that the blow heads will not separate from the molds during blowing, provides for trimming of the containers at the trim stations and for deposit of trimmed containers in upright positions on a conveyor.