What is injection molding case studies and Why Do We Use Them?

02, Dec. 2024

 

Case Study: Plastic Injection Molded Display Components

Point-of-purchase display components require rugged construction in combination with an attractive appearance. At The Rodon Group, we injection molded a range of products, including items such as pegboard hooks, shelf dividers, and product stops for one of the leading companies in the point-of-purchase display industry. This project highlights our ability to provide value-added services in conjunction with close tolerance injection molding that equates to cost savings over the entire product lifecycle.

Working with the customer supplied prints, we first focused our attention on mold design. Our goal, as always, was to construct molds that would lead to volume high quality while minimizing production costs. By paying detailed attention to aspects such as cavity dimensions, gate location, venting, cooling systems, and more, we achieved optimal cycle times while upholding tolerances as close as ± 0.005 across varying complexities in part geometry. One critical feature of these parts was a fine quality surface, so we leveraged the capability of our EDM equipment. This allowed us to create a very fine finish on the mold cavities to add clarity and quality to the surface of the finished part with no extra processing required.



Production involved the use of various commodity and engineering grade resins in shot sizes from less that one gram all the way up to 35 grams. With part sizes measuring from from 5/8 square up to 3.5 in length x 19 in width, we used a variety of injection molding presses in the 46 to 233-ton range. Machine vision inspection right at the press, combined with a robust set of test and measurement processes, ensured we satisfied all of the quality requirements.

The Rodon Group was able to demonstrate that done right, a high-quality mold and plastic injection experience can result in better quality at a better price. To learn more about this project, and the processes used to manufacture it, see the table below or contact The Rodon Group directly. To view other case studies, visit www.rodongroup.com/services-products/custom-molding-case-studies. 

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Highlights of this project: 

Product Description

Plastic injection molded point-of-purchase display components

Capabilities Applied/Processes

Primary:

  • Tooling Design

  • Mold Making

  • High Volume Plastic Injection Molding

Equipment Used to Manufacture Part:

46 to 233 ton Nissei Presses

Overall Part Dimensions

5/8" square to 3 ½" x 19"

Tightest Tolerances

± 0.005"

Material Used

Various commodity and engineering grade resins

Material Finish

Fine EDM Finish (Electrical Discharge Machining)

In process testing/inspection performed

First piece inspection and routine in-production inspections

Estimated Part Weight

Less than 1 gram to 35 grams

Industry for Use

Retail point-of-purchase displays

Delivery Location

Pennsylvania

Standards Met

Using a pre-designed part, we designed for manufacturability by maximizing the molds to produce higher quality and quantity parts

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Product Name

POP display products including pegboard hooks, shelf dividers and product stops


See How We Make Billions of Custom Plastic Components Each Year:

 

 

Case Studies in FMCG Injection Moulding

Fast-moving consumer goods (FMCG) manufacturers frequently employ the injection moulding technique. During this procedure, molten plastic is injected into a mould cavity, where it solidifies and adopts the mold's shape. The manufacturing process for items has changed significantly in recent years as a result of new technology and materials.


The advent of automation is one of the main changes in injection moulding. Automated systems have the capacity to consistently produce large quantities of goods in a timely manner while reducing human error.


The adoption of sustainable materials is a further development in the sector. Many FMCG companies have responded to consumer concerns about the environmental effects of plastic products by looking into alternative materials. For instance, bioplastics are a sort of biodegradable, sustainable material derived from renewable resources that appeals to FMCG companies trying to lessen their environmental impact.


The advancements in injection moulding have also been influenced by improvements in simulation software and mould design. Complex mould designs are now easier to create thanks to computer-aided design (CAD) software, and engineers can also evaluate the operation of the moulds prior to production using simulation software. Due to this technology, FMCG companies can now produce high-quality goods with shorter lead times.


Following are the few Case studies on FMCG injection moulding that will explain you the major issues with the viable solutions:


  1. Creating thin wall containers

We were successful in reducing the weight of the container and improving the cycle time of the mould thanks to a careful examination of the container design and material qualities combined with cutting-edge simulation and tooling processes, making our customer more cost-competitive in the market. We were able to accomplish this thanks to our skills in DFM, Moldflow analysis, and tool design, which eventually led to a happy client and a finished job.

2. Air tight Lids

For DLJM's JEE PEE Plus brand, we successfully designed and created a complete family set of airtight food containers. The containers' airtight and leak-proof construction guaranteed the food's quality and freshness while storing it. P-20 was used as the mould material to provide long-lasting, high-quality production.

3. Bottle caps and closures

The injection mould for oil caps with the Mastip hot runner system was created to adhere to the specifications and needs of the client. The customer was able to supply top-notch oil caps to their client who manufactures oil thanks to the tooling lead time of 60 days to T-1, which ensured prompt delivery of the mould.

4. Oral Care 

Although this project was difficult, we were able to create a cutting-edge toothbrush that satisfied the client's needs. High-quality materials were used to offer a comfortable grip while ensuring efficient production thanks to the 2K moulding technique and core rotating moulds. The working prototype worked well, and our client was pleased with the outcome.

5. Use of right Technology 

Automation is one area where technology has had a significant impact, with the use of robots and other automated systems to handle tasks like part removal, sorting, and packaging. This reduces labour costs and increases productivity while also ensuring consistent product quality. Additionally, improvements in mould design software and simula- tions can also significantly improve efficiency, productivity, and product quality.

6. Lock the damage

Cable ties, usually referred to as zip ties, are a typical kind of fastener used to join cables, wires, and cords. They come in a variety of sizes and colours to suit various purposes and are produced from strong materials like nylon. The main manufacturing technique used to create cable ties is injection moulding. Plastic pellets are heated up in the process, and the molten material is then injected into a mould cavity where it cools and solidifies into the required shape. High numbers of cable ties may be manufactured with reliable quality and efficiency using injection moulding. Cable ties are suited for a wide range of applications in various industries since it also enables the manufacture of complicated forms and shapes.

If you are looking for more details, kindly visit injection molding case studies.