In a method for producing at least a single-walled tubular thermoplastic body in a machine, a nozzle head extrudes at least one tubular preform. The preform is expanded to a predefined dimension in a transverse direction and to a predefined shape in an expansion process using an expanding mandrel, the preform remaining open at the top and bottom. When the at least one preform has cooled off, the expanding mandrel is changed into a non-expanded state and the at least single-walled tubular body is removed from the machine.
B29C 48/17 - Articles comprising two or more components, e.g. co-extruded layers the components having different colours
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
B29C 48/88 - Thermal treatment of the stream of extruded material, e.g. cooling
B29C 49/22 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor using multilayered preforms or parisons
B29C 49/42 - Component parts, details or accessoriesAuxiliary operations
B29C 55/24 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of tubes radial
A double barrel for hazardous goods with an outer barrel of plastic and an inner barrel of plastic received in the outer barrel. The body of the outer barrel is formed of a first barrel part and a second barrel part. The first barrel part has a first connecting area and the second barrel part has a second connecting area that is complementary to the first connecting area. The first and the second barrel part are firmly connected to each other via the connecting areas in an assembled state by means of a circumferential plastic weld seam.
B65D 6/10 - Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal, plastics, wood or substitutes therefor with walls comprising multiple panels in spaced face-to-face relationship, e.g. double walls
B65D 8/02 - Arrangements of filling or discharging apertures
B65D 25/24 - External fittings for spacing bases of containers from supporting surfaces, e.g. legs
A container made of plastic and having a receiving volume of 2000 to 10000 liters comprises an upper container part and a lower container part and at least one clamping device which connects the two container parts in a sealing manner. Further, a plastic blow molding process is described, which serves to produce the container.
The invention relates to a method and a device for producing large-volume container trays of plastic. A tubular preform is guided over a mold frame which is facing two blow molds. During the closure of the blow molds, an encircling flange is formed on the outer edge of the container trays. After blow molding, the container trays are cut free from the mold frame along said mold frame.
B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
B29C 49/22 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor using multilayered preforms or parisons
B29C 49/42 - Component parts, details or accessoriesAuxiliary operations
B29C 48/14 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
42 - Scientific, technological and industrial services, research and design
Goods & Services
Machines and their parts for manufacturing transport and
storage containers, drums, tanks, containers, pallets and
molded parts made of plastics; pumps. Transport and storage containers, drums, tanks, containers,
pallets and molded parts made of plastics, included in this
class; wooden pallets. Engineering services.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Machines and their parts for manufacturing transport and storage containers, drums, tanks, containers, pallets and molded parts made of plastics Transport and storage containers, drums, tanks, containers, pallets and molded parts made of plastics, namely, industrial packaging containers of plastic, containers for transporting food, chemicals, hazardous liquids, plastic valves for containers; wooden pallets Engineering services
7.
Arrangement for receiving a casting mold with coaxial drive and method therefor
An arrangement for receiving a multi-part casting mold, in particular an at least two-part blow mold. A drive unit for displacing locking elements has a main cylinder with a main piston and a travel cylinder with a travel piston, wherein the travel cylinder is connected with the main piston of the main cylinder and is movable therewith. The travel piston has a piston rod, which is connected with the locking element and is mounted concentrically displaceably in the main piston. In the operating condition of the molding process, the travel piston abuts on the main piston, wherein the main cylinder provides the locking force to keep the mold closed during the molding process.
B30B 1/32 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
B29C 33/24 - Opening, closing or clamping by rectilinear movement using hydraulic or pneumatic means
