Month: August 2017

Don’t Skip the New Mold Design Review

Don’t Skip the New Mold Design Review

Many organizations put in weeks, months, even years creating imaginative items. Various plan changes, testing, and fast prototyping are utilized to guarantee the item configuration is strong. With a product configuration close by the improvement group and investors are anxious to see their diligent work turn into an unmistakable part. Part files are sent out, purchase orders are placed, and the clock starts ticking on the ever important mold completion date.

The issue: the mold outlines are left to the mold producer to decide with next to zero oversight or evaluation. With packed courses of events and tight deadlines, the mold plans are optimized and sent to production for the molds to be assembled.

We see it constantly; these molds arrive and are set up for sampling. Some of the time there are evident issues, for example, insignificant water lines or little leader pins. At different periods the issues are more subtle, for example, the tool steel wasn’t firm and wear issues start to show up after time. These issues dependably cost time and cash. They can influence quality and consumer loyalty.

Tooling is an investment. In the event that the mold plan and construction quality are given the indistinguishable love and consideration that was given to the part outlines, you will get a decent profit for this venture. A composed and assembled mold will dependably spare cash over the long haul. The cost of the mold is rarely affected by the mold design review.

Quality Mold Shop knows the necessity of a composed and well-built mold. Get in touch with us today to perceive how Quality Mold Shop can help make your new project on-time, on budget, and successful.

Plastic Injection Molding: An Overview

Plastic Injection Molding: An Overview

Taking in the plastic injection molding procedure can be a bit mind boggling at first. Your organization has experienced weeks, months or perhaps years of innovative work to plan the freshest, most imaginative and effective item. You begin burrowing further and arranging how your item will be manufactured. You contact a nearby plastic injection molder and get pounded with questions that you are almost certain they are asking in an foreign language, or if nothing else it feels that way.

Abandon all that anxiety! Here at Quality Mold Shop we will enable you to build up the best items in a convenient way, productively, and be cost effective. This article will go over basics of plastic injection molding and enable you to get a more complete understanding of the process.


Knowing the procedure of injection molding is key to boosting the quality and manufacturability of a plastic product. At the point when this procedure is comprehended, outline and creation choices can be made all the more effectively for your product.


Resin pellets are poured through the container, venturing out to the barrel of the injection machine. With a blend of warmth and weight, the resin pellets are dissolved into liquid resin/plastic. The screw inside the barrel turns, delivering pressure, while pushing the liquid resin through the spout and into the mold depression. Once the mold is filled, the resin is cooled and ejector pins drive the formed plastic out and the procedure proceeds to the next round.

Clamping Process:

The mold clamp chamber controls the opening and shutting of Mold A (mold center), supplying the proper brace power to Mold B. The clamping power keeps the mold shut against weight amid the injection procedure. A 300 ton injection machine has a clamping power proportional to over 300 tons.

The measure of clamp pressure required is specifically correlated with every resin property and injection pressure needed to fill the mold void. Thicker resins have a low stream (slower flow) and require higher pressure to fill the mold. Thin resins require less pressure because of their high flow rates.

Infusion Process:

The mix of warmth and pressure liquefies the resin in the infusion barrel. Heating bands encompassing the barrel are intended to raise the temperature to the right melting point for every particular resin. Exact control amid this procedure is important when separating thermoplastic properties. On the off chance that the temperature is too high, the fill speed and shear stress can be influenced; affecting item quality, appearance and execution. Be that as it may, if the temperature is too low, the resin won’t liquefy.

Once the resin is dissolved, the screw inside the infusion barrel turns and pushes the liquid material through the spout, filling the form cavity. The following are different variables that should be resolved to guarantee creation achievement.

Fill Speed :

Fill speed should be set by the complexity, size and thickness of a product part. On the off chance that the fill speed is not figured exactly for the mold hole and properties of the resin being utilized, attributes below will be affected with uncontrolled results.

Shear Stress

Shear is the layers of polymer flow with respect to each layer. Shear stress is measured by the strain between the polymer’s atoms. In the event that the shear rate ascends past suggested areas, the item’s mechanical properties can be influenced. Utilizing a mold flow analysis is an extraordinary approach to reproduce the injection procedure and decide whether the fill speed is creating appropriate shear stress and shear rate.

Pressing and Sink Mark Displacement

Off base temperatures, fill speed and shrinkage can cause sink imprints and flaws. On the off chance that the liquid resin is not sufficiently pressed at the correct speed and temperature, sink imprints might be an outcome.

Cooling Process:

Streamlining production likewise implies diminishing process time. Timing is imperative for each procedure, including the cooling stage. A snappier cooling stage helps better time-to-market. On the opposite side, too speedy of a cooling stage can cause plastic flaws. Having satisfactory plans, gate sizes and fill speed to pack the mold evenly will help optimize the cooling phase.

Inventor to Entrepreneur: Plastic Injection Molding

Inventor to Entrepreneur: Plastic Injection Molding

Plastic is a wonderful, versatile material that can be used for producing nearly anything! The great thing about plastic and injection molding is that it makes mass-production for products more accessible. It’s no longer necessary for every item you buy in the store to be meticulously handcrafted.

What makes plastic injection molding even better, is that entrepreneurs can come up with an endless amount of new ideas for products that will improve our daily lives. Everything from technology to basic toys have some plastic-molded parts. And while we don’t think of the injection molding process often, it’s part of our daily lives. Even the device you’re using to browse the Internet, has some plastic molded parts!

But if you, like the average person on the street, have no idea where to begin in making your product idea a reality through injection molding, there are some simple steps to take.

Is Your Idea Worth It?

The first, most important question to ask yourself before having a product mass-produced, is whether or not the product will truly be profitable. Unfortunately there’s no way to know for sure, and as with any new business venture, there will always be some risk involved.

But that shouldn’t stop you from doing your research.

When thinking about whether or not the product you want to make will sell, you can ask yourself some basic questions like:

  • Does my idea solve a problem?
  • Does my idea improve upon an existing product?
  • Will there be a large enough market interested in buying my product?
  • Can I explain the benefits of my product simple and succinctly?
  • Can my product be manufactured at a realistic cost?

You’ll have to answer the first few questions for yourself by doing some market research. But the last one will require you to get quotes from product designers and plastic injection mold manufacturers.

Where to Start?

If you have a good idea that you believe will sell, your first challenge will be to get it on paper. Draw your design using some pen and paper. Don’t worry if you aren’t good at drawing, the important part is for your drawing to clearly show what you expect the finished product to be like.

You can also make some basic prototypes illustrating your idea using things like clay. Although it’s unlikely that a clay prototype would be functional, this will help designers understand what your product should look like in 3D. Apart from your clay prototype, you can also build a functional prototype using anything you can find around the house. This prototype will help you explain your idea more effectively.

Once you have proper designs and product examples, it’ can be a good time to venture into having it made in plastic. When you start out, getting your idea 3D printed can be an excellent way to make a realistic prototype of the end product.

3D printing is a wonderful technology for producing small amounts of plastic parts without the upfront investment of having a plastic injection mold made. For this reason, some products never go further than the 3D printing stage. An example of an innovative for 3D printing is in the manufacturing of prosthetics for amputees. Because every amputee has very specialized individual needs, 3D printing is now used to manufacture low-cost, custom-made prosthetics.

However, most products have to be mass-produced in order to be profitable, so for the purpose of your product design, you’re likely to use 3D printing only during the prototyping phase of design.

Once you’ve got a basic, 3D printed prototype of your final product, you’re ready to take the idea further. If there’s anywhere you were hoping to pitch your product idea, the prototype is sure to come in very handy!

Let’s Talk CAD Designs

This is where you hand your ideas over to the professionals. Computer-aided design – or CAD, for short – is a process where professional designers take your idea to the next level.

CAD designers know more about the injection molding process and the manufacturing of plastics products in general, so their designs will usually be made considering different aspect of the manufacturing process. This is essential for successful product design, seeing as a plastic injection mold will have to be designed and made specifically to produce parts for your product. The professional product designers will draw the final product design, not only thinking about the functionality of your product, but also how the molds producing parts for your product will function.

Some of the things a professional CAD designer will keep in mind while designing the final product include:

  • What material will be used to make each part of the final product?
  • How easily can each part of the final product be molded?
  • Where should the gates be placed on the mold to ensure the part has no molding defects?

Chances are, your designer will take an example of their design to a plastic injection mold manufacturer in order to decide how the molds should function. Plastic injection mold design and quality in the manufacturing of the mold itself will play a huge role in the quality of your final product.

If the gates feeding molten plastic into the mold aren’t placed correctly, for instance, the plastic might not fill the whole mold cavity and your parts could all end up being defective.

For this reason, your mold designer and manufacturer will be just as important in getting your product idea on the shelf as your designer.

At Quality Mold Shop, we pride ourselves in producing precision molds for any industry. We’ve successfully designed and maintained injection molds for the technology, medicine and the automotive industries. Talk to us about mold design, maintenance and manufacturing.

Significant Advantages to Using Plastic Injection Molding for the Manufacturing of Parts

Significant Advantages to Using Plastic Injection Molding for the Manufacturing of Parts

Plastic injection molding is a great flexible technique for delivering parts and items. It is one of the favored techniques for assembling parts since it has various preferences over different strategies for plastic molding. Not exclusively is plastic injection molding less complex and more solid, it is additionally to a great degree more proficient. You ought to have no questions about utilizing this strategy to produce parts.