摘要:
A pallet includes a rigid body that supports a concrete product and a polymer layer that corresponds to a geometry of the concrete product within a predetermined tolerance. One or more flanges with apertures are provided with the rigid body for the polymer layer to attach thereto. The polymer lay can extend outward from the rigid body to form a portion of the dimensions for the concrete product within predefined tolerances.
摘要:
A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a single sealing zone, and a weakening zone disposed within the single sealing zone. The single sealing zone may be a heated perforator, and may include a heating wire. The heating wire may be an NiCr wire stitched into the heater, and be disposed on a cap or on the seal bar. The weakening zone may create a line of weakness that is uniform or varies in intensity. The sealing zone may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.
摘要:
A system and method for fabricating the corner of a plastic window frame. The system includes a metal platen having opposed sides and that is for heating and melting adjacently disposed frame pieces by being inserted between the adjacently disposed frame pieces as the adjacently disposed frame pieces are brought into contact with respective opposed sides of the metal platen in order to melt adjacent surfaces of the adjacently disposed frame pieces. The adjacently disposed frame pieces, once heated and melted, are drawn together to form the corner of the vinyl window frame. A release layer is secured to the opposed sides of the metal platen and disposed between the respective adjacently disposed frame pieces and the opposed sides of the metal platen to prevent adherence between the metal platen and frame pieces. The release layer is comprised of a release film having a work area corresponding to an area where the adjacently disposed frame pieces are to be joined and a non-work area outside of the work area, and at least one adhesive strip is disposed within the non-work area for securing the release film to the metal platen while the work area is absent any adhesive between the release layer and the metal platen.
摘要:
A blowing assembly for a sealing unit of a packaging device is provided comprising a housing and at least one blowing element which is movable relative to said housing between a first position, in which it is lowered at least partially into said housing, and a second position in which it at least partially projects above a surface of said housing. Also provided is a method for removing excess packing material from a blowing assembly for a sealing unit being provided in a packaging device.
摘要:
A device for the laser transmission welding of two plastic assembly parts is provided, wherein at least one of the plastic assembly parts contains an absorber for laser light, comprising a processing head with a processing side, with a processing-side discharge shaft for at least one laser beam and with a laser-transparent pressing means for pressing together the plastic assembly parts, wherein the laser-transparent pressing means is guided decoupled from the processing head in the discharge shaft. Furthermore, a method for producing a welded joint between two plastic assembly parts by laser transmission welding is specified.
摘要:
An injection molding device including a middle flow channel which forms an intermediate layer of a preform which is subject to biaxial stretch blow molding. The middle flow channel s segmented into a predetermined number of flow sub-channels by vertical blocking rib piece(s). Side wall's upstream portions of the vertical blocking rib piece are formed as angled surfaces whose distance from each other decreases from the downstream side to the upstream side, and/or, an end portion of the vertical blocking rib piece that is located on the downstream side is tucked in at least one of the inner flow channel and the outer flow channel.
摘要:
A mold having a first part with a carcass with a molding zone added thereto to provide a mechanical interface between the molding zone and the carcass. Inductors of the mold extend along a longitudinal direction in cavities between the mechanical interface and the molding zone. A cooling device of the mold extends at the mechanical interface between the molding zone and the carcass.
摘要:
Methods for manufacturing elongated structural elements are provided. Such methods provide composite material having optimal properties such as weight and strength which can be produced at much lower costs compared to conventional methods. Composite materials including such elements are also provided. In addition, commercial products incorporating such structural elements are provided.
摘要:
A tool for producing fiber-reinforced plastics components in the injection process has a receptacle for a plastics component, which receptacle is surrounded by a circumferential seal which is inserted into a groove formed in the tool. It order to devise such a tool with which a higher service life for the seal can be achieved, the invention provides a receptacle chamber as volume compensation.
摘要:
A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The drum includes at least one seal bar, having a first sealing zone and an adjacent weakening zone. The weakening zone may be a heated perforator, heating wire, and/or may create an auxiliary sealed area. The heating wire is powered by a source of power at an adjustable voltage or magnitude, and/or pulsed, and/or with a feedback loop. The heating wire may make intermittent contact with the web and/or be disposed in an insert. The weakening zone may create a line of weakness that is uniform or varies in intensity, is a separating zone. The sealing zones may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.