Nullam dignissim, ante scelerisque the is euismod fermentum odio sem semper the is erat, a feugiat leo urna eget eros. Duis Aenean a imperdiet risus.
Everything inside an electric nasal irrigator hangs off one part. The structural body shown here is that part: a moulded shell that carries the water circuit, locates the electronics, holds the tank and provides the surfaces the outer panels clip to. Get its internal geometry right and the device assembles cleanly; get it wrong and every subsequent station inherits the error.
Five views cover the outer form and the inside. The inside is where the design lives: ribs, posts, locating features and the boss pattern that the rest of the device is built around.
Internal features on a part like this are not optional detail; they are the drawing. Ribs carry the stiffness that lets the outer wall stay thin. Posts locate the pump bracket and the board. Bosses take the assembly screws, and their depths are set so the screws bottom out in the plastic without splitting it. Every one of those features has a minimum wall behind it, and none of them can be repositioned later without re-tooling the stations that use them.
That upstream role means tolerances here are tighter than the part’s own function strictly needs. The ribs exist for stiffness, but the locating posts set the position of an electronics board, and a post half a millimetre out of place turns into a connector that will not reach or a button that does not sit right at the finished device.
The body is an oval tube, deeper than it is wide, which puts the core in the deep-draw category. Core draft has to be enough to release without scuffing the inner ribs, and the ribs themselves need draft on both flanks or they drag. The flow also has to reach the bottom of the shell across a long path, which is where the gate layout and packing profile earn their keep: an underpacked base warps and pulls the whole assembly out of register.
Ejection pushes on features that survive the push. The ribs and posts are convenient to push against but they are also the features the device depends on, so the ejector layout is arranged to load the structural base rather than any single rib.
Post and boss positions against the assembly drawing, since they set the position of everything else. Rib thickness, checked for sink on the outer wall. Base flatness and shell height, which decide how the device closes. Fit with the mating tank and panels using the real parts, not gauges alone.
Kunshan Maifeng Precision Industry Co., Ltd. reviews device structural part designs before quoting, builds the injection molds in house, and molds single-color and dual-color parts on 36 machines from 90 to 700 tons. Send us the assembly drawing and the mounting details, and we will come back with a feasibility comment and a tooling proposal.
Kunshan Maifeng Precision Industry Co., Ltd. (MIF) has an investment of RMB 35 million and an independent factory of more than 5,000 m². The company operates 36 single- and dual-color injection molding machines from 90 to 700 tons, together with more than 50 sets of mold manufacturing and processing equipment. Our service, management and production team includes over 100 people.
Our parent company was established in 2008. We provide product design, mold design and manufacturing, injection molding and product assembly services for custom plastic parts, supporting both domestic and international customers.
1. Product Design
Product structure design and optimization based on customer drawings and samples.
2. Mold Design
Mold design developed around product geometry, material and production requirements.
3. Mold Manufacturing
Machining, polishing, fitting and assembly for custom injection molds.
4. Injection Molding
Single- and dual-color injection molding for project and order requirements.
5. Product Assembly
Supporting assembly services for molded plastic components.
English 
Chinese