An apparatus including a co-extrusion device for extruding a multi-layer structure having at least one primary layer and at least one secondary layer, so that the multi-layer structure leaves the co-extrusion device along an exit direction; a mould provided with a pair of elements, at least one of the elements being movable towards the other in a moulding direction, so as to compression mould an object from a multi-layer dose which was severed from the multi-layer structure; a transport device for carrying the dose towards the mould; an arrangement for modifying orientation of the dose while the dose is being transported by the transport device, so that the dose is introduced into the mould with an orientation in which the secondary layer extends transversely to the moulding direction.

The invention relates to a device (1) for supplying at least one molding device (2) with a polymerizable mixture of at least two reactants.

According to the invention, said supply device comprises: a buffer tank (10) suitable for receiving said polymerizable mixture via an inlet (101) of said buffer tank, a supply circuit (11), looped with said buffer tank, to convey the polymerizable mixture to an inlet (110) of said at least one molding device and including, beyond said inlet of the molding device, a return pipe (115) connected to the inlet of the buffer tank for sending a portion of the polymerizable mixture from said return pipe, and a filling pipe (42) of said buffer tank, connected to said inlet of said buffer tank, separate from the return pipe, wherein said buffer tank is also suitable for receiving said polymerizable mixture or at least one of said reactants from said filling pipe.

The present invention discloses the use of a dry blend comprising a polyethylene resin and a functionalized polyolefin or ionomer in a composition with a thermoplastic resin in order to produce a layer that provides adhesion, fire resistance and low permeation rate in a multi layer rotomolded article.

A dosage device for extruding a monocomponent or a bicomponent polymeric product, particularly for an automatic machine for forming a spacer frame, includes a first dosage assembly and a separate second dosage assembly for the dosage and feeding of the product, which can be activated, in a first feeding step and in a third feeding step, alternately so that one of them provides continuity of flow to an extrusion nozzle while the other one is in the reloading step. The first and second dosage assemblies are activated, in a second swapping step that is intermediate with respect to the first and third feeding steps, simultaneously and jointly, one of them having a flow-rate ramp that passes from the steady-state value to zero and the other one complementarily having a flow-rate ramp that passes from zero to the steady-state value.

The disclosure includes a method and an apparatus for forming a material batch in a continuous manner to form an end product. A material batch (4) is formed from material pieces (1) of predetermined sizes on a temporary storage device (2) by leaving a gap between each of the material pieces (1), and at least two temporary storage devices (2, 108) are arranged side by side and/or one above the other in order to collect the material batch, and the material batch is collected on a temporary storage device such that a material batch is collected on each of the temporary storage devices one after the other and the next material batch is formed on a next temporary storage device when the previous material batch is ready on a previous temporary storage device.

In an example implementation, a powder metering device to move powder in a 3D printing system includes a rotor comprising a central hub and peripheral wheel to rotate about a shaft. Compartments are formed between the hub and the wheel by a plurality of fins that emanate from the hub at first fin ends and affix to the wheel at second fin ends. A top and bottom disk each have a planar surface to lie flush against and to seal, respectively, top and bottom perimeters of each compartment as the compartments rotate about the shaft between a powder receiving position and a powder dispensing position.

Provided a method for supplying a resin by which appropriate replacement of a cartridge enables resin supply to be performed appropriately. The method for supplying a resin includes: a primary resin supplying step of supplying a liquid resin contained in a first cartridge to a supply target, the first cartridge having a remaining amount of liquid resin smaller than a target supply amount appropriate for one-time resin supply to the supply target; a cartridge replacing step of replacing, after the primary resin supplying step, the first cartridge with a second cartridge already subjected to dripping out; and a secondary resin supplying step of supplying a liquid resin contained in the second cartridge to the supply target after the cartridge replacing step.

Resin supply system in which resin material is stored in a pouch in a degassed state ready for use. The pouch comprises a body portion forming a reservoir for resin material and a connector portion in fluid communication therewith. The connector portion includes an outlet which is configured to be connected to an injector head of an injector assembly, the injector head being connectable to a mould by means of connecting tubing to provide a resin supply thereto. The pouch is configured to be mountable in a housing of the injector assembly and is compressed by hydrostatic pressure of water surrounding the pouch in a chamber of the housing. The application of pressure by a piston moving in a direction transfers pressure to the water and then to the pouch in a controlled manner to provide the resin supply to the mould. After use, the pouch is removed and discarded thereby substantially eliminating the need for cleaning of the housing after use.

The invention describes an advanced mixing and metering technology with online analytics for a supply of formulated liquid thermosetting resins into an open or closed mold. The application addresses where a precise control of the composition of formulated components is required. Composite structures used in primary and secondary structural aerospace applications manufactured in Infusion or RTM processes are possible examples.

A frame with an outer silicon layer and a manufacturing method of forming the silicone layer on the outer part of frame are disclosed. The manufacturing method includes a forming step, a combining step and a removing step. First, a pair of mold with a forming space is formed with a silicone carrier including an effective combination region and an ineffective region. An emplacing space is next formed in the effective combination region and a frame is put into the emplacing space. Before putting in the frame, either the outer part of frame or the emplacing space is coated with a silicone coating, and then the effective combination region is combined on the outer part of frame by a secondary sulfurization. Finally, the effective combination region is removed from the ineffective region to form a silicone layer, made of the effective combination region, on the outer part of frame.