The invention relates to a brush, in particular an interdental brush, which comprises a bristle-carrying stem defining a longitudinal direction and having an elongate support core, a bristle area having bristles projecting from the bristle-carrying stem, and a neck element connecting the support core to a handle, wherein the handle, the support core and the neck element are injection moulded integrally from a first plastics component, and wherein a second plastics component in the form of an integral layer and the bristles projecting therefrom is mounted on the support core. The invention also relates to corresponding product groups and to a corresponding method.

A medical syringe barrel and a manufacturing method for producing the same can be completed as a molded article by injection molding of a synthetic resin material without requiring post processing like polishing and can fill and administer a predetermined amount of the internal-use solution accurately. A medical syringe barrel includes a tubular barrel section for accommodating an internal-use solution in the interior thereof, an injection nozzle section formed at one end of the barrel section, and a flange section formed at an opening section on the other end of the barrel section to project radially outward. A surface of the flange section has a recess portion, and a weld line which is potentially formed by injection molding is not formed in the internal-use solution filled section.

An injection molding apparatus, comprising: an injection molding machine; a distribution manifold having a distribution channel, a clamp device arranged to clamp together, under a selected clamp force, a mold system having a plurality of mold cavities one or more first downstream channels fluidly coupled to the distribution channel; one or more first gates arranged to deliver injection fluid to a first cavity; one or more second downstream channels fluidly coupled to the distribution channel; one or more second gates arranged to deliver injection fluid to a second cavity; a control system adapted to: instruct the first upstream valve and a second upstream valve; and at least one downstream valve having a valve pin having a control surface for controlling flow of injection fluid.

A package (10) is provided and comprise a frame (15) formed from a plastics material and a wall (20) formed from a paper or paper-based material.

A belt pulley (1) for a belt drive and a plastic injection molding method for producing the belt pulley are provided. The belt pulley (1) includes an anti-friction bearing (2) and a running ring (3) which surrounds the bearing outer ring (7). An end side of the running ring has a multiplicity of molding points (13) which run on the sector radii (R) of circular sectors which have a common center point on the rotational axis (15) of the belt pulley and at least two center point angles (α) of different size. Part of the circular sectors are to have sector radii, on which the molding points have cross sections of different size. Here, the center point angle of the adjacent circular sector on the side of the larger molding cross section is larger than the center point angle of the adjacent circular sector on the side of the smaller molding cross section.

A plug-in connector produced by injection molding a plastic material and having an internal channel for a fluid and having three main sections situated axially one behind the other. The plug-in connector has a gate point on its outer circumference solely on one side and a mass distribution of the plastic material that is radially asymmetrical with respect to the circumference and which is present in at least one of the main sections of the shaped part. A method for the production of the plug-in connector is likewise disclosed.

A mold apparatus for forming a molded part includes a mold body, a mold cavity formed in said mold body, a plurality of valve gates associated with said mold body, and a controller in communication with said plurality of valve gates. The controller is programmed to time opening of each valve gate based on a selected flow rate required to eliminate weld lines in the product.

An injection molding one-piece cutting board (2) comprises two pre-molding wear-resistant chopping plates (21) spaced apart from each other in parallel. Two holding holes (211) of the two chopping plates (21) are respectively press-fitted at an upper side and a lower side of a positioning block (31) arranged inside an injection molding mold (3). Two open groove portions (32) of the mold (3) are respectively arranged corresponding to an upper side of one chopping plate (21) and a lower side of the other chopping plate (21). A cover groove portion (33) of the mold (3) is surrounded the peripherals of the two chopping plates (21). A plastic material is injected into a space defined between the two chopping plates (21) and then filled with the plastic material to form a middle thickness support (22) and the cover groove portion (33) to form a frame (23).

Disclosed herein, amongst other things, is a method for converting a design of an original preform that is blow moldable to form a container into a converted preform having less molding material that is blow moldable to form the same container. The method includes retaining a neck finish and body of the original preform on the converted preform. The method further includes replacing the original base of the original preform with a converted base having an outer base surface that joins with an outer body surface of the body at an base split-line of the original base and that fits offset within an outer body surface of the original base, whereby the converted preform has a reduced total length, disregarding any gate vestige that may be formed thereon, relative to a total length of the original preform.

A method for moulding an elongate articulated bending section body (4) for a medical device including a number of segments (7) interconnected via a number of hinge members (8). The method includes the use of a mould having a first number of sub-cavities where each of the sub-cavities has at least one external fluid inlet through which a liquified plastic material is injected into the mould. The sub-cavities are so distributed that each sub-cavity is separated from another sub-cavity by an odd number of sub-cavities without an external fluid inlet.