The benefits of plastic injection molds

Mold design and mold-making companies in China allow greater design freedom for parts. They allow for the addition of radii or soft edge areas that would require extra machining on metal parts.

Another element of design freedom is the ability to create highly detailed parts with complex geometry as the plastic material is injected into the mold under high pressure. It fills the cavity completely and is pressed against the mold with more force than other molding processes.

Therefore, the plastic will conform to even minute and complex shapes and details within the mold.

More excellent utility with fewer assembly processes

It is also possible to combine different materials in the same part for more excellent utility with fewer assembly processes. Mold design and mold-making companies in China use plastic and rubber to create a sealing edge. It uses two different colors of the same material.

Insert molding allows a non-plastic component to be incorporated, such as a metal screw embedded in a plastic part.

It enables the complex metal to plastic part conversions. It also reduces total part costs by reducing multiple machining operations in a single injection process. Plastic components are lighter than machined or cast metal parts.

Significant savings in production costs

The plastic injection molding process involves a high degree of automation, providing significant savings in production costs.

There is little or no material waste generated by mold design and mold-making companies in China. Its discarded plastic can be reused. It’s time to re-evaluate your processes and see how plastic injection molding can benefit your business.

What are the drawbacks to injection molding?

As with any process, there are challenges. Although the benefits and efficiency of injection molding are apparent, these considerations still weigh heavily :

The initial cost of an injection mold can be high. Your mold designer and maker should be able to advise you on ways to reduce costs for your molds without sacrificing quality or time if you need a small number of parts. It can be beneficial to use softer steel to produce the cavities and reduce the cost and lead time of the finished mold.

Mold design and mold making company has a longer lead time

Injection molds will have a longer lead time than some other processes. A machining program can generate overnight, and within a day or two days, you can have a sample part for demonstration.

To be competitive in this period, you may need to find a fast prototyping operation that can 3D print a plastic part instead of a part machined from metal or rigid plastic.

Design changes may not be simple for an injection mold.

What should you consider?

Are you designing an injection molding product? If so, a mold design and mold-making company in China has some guidelines that will be helpful as you work through the product and mold design process.

At a minimum, the following key points should consider when developing an injection molding tool:

Injection gate location

The location of the gate is crucial:

When considering the location of the gate, designers will want to place the gate in a thicker intersection area of ​​the part. It can remove without concern for the visual and structural suitability of the design. Plastic flows better from a thick section to a thin section. The injection point will normally be located in the cavity or on the side surface.

The mold design and mold making deserve extensive discussion in its definition. The injection inlet controls the speed with which the molten material enters the cavity and also its packing. These two characteristics will influence the performance and appearance of the molded part.

The parting line is essential to the appearance

When the two halves of the mold separate, there will be a parting line. As with most of these steps, the location of the parting line is very important to the appearance of the final product.

Wall thickness has the most significant impact

When designing a plastic product by mold design and mold making company, wall thickness has the most significant impact on cost, production speed, and the final quality of a part among all aspects of design.

For example, thick walls offer more strength. They also have a greater tendency to warp during the cooling stage of the injection process. While thick walls provide additional strength, there are some advantages to designing thinner walls.

Therefore, maintaining optimal wall thickness is particularly important for high-volume injection molding projects.

Gradual variations for product stability

Wall thicknesses are not subject to any restrictions. It is generally that the goal of mold design and mold making companies in China is to create the thinnest wall possible, taking into account the structural requirements of the part and the size and geometry.

If the walls can’t be completely uniform, gradual variations in thickness are essential to maintain product stability. Uniform wall thickness also allows for the most efficient and uniform flow of resin for optimal processing.

Proper wall thickness is just one of the key design elements that must be maintained for the injection process to work properly.

3D product by mold design and mold making company in China

The addition of a few degrees of tilt means parts will leave the mold much more smoothly. Its minimal friction and scraping between the finished, cooled product and the mold walls. There are minimum requirements needed for any part based on the depth of detail, the material chosen, and the depth of texture applied to the cavity.

The selection of materials

With hundreds of commodity and engineering resins available on the market. The process of selecting materials for plastic injection molding jobs can seem daunting at first. Material selection by mold design and mold making company in China is one of the most critical choices when designing your part. Factors in many aspects of the process include shrinkage factor, cooling time, flexibility, and more.

Different materials have different processing temperatures

Different materials have different minimum/maximum wall thicknesses and require different processing temperatures. Some materials will be harder than others to extract from the mold. It’s important to keep these things in mind during the product design process.

Choosing the best material for a particular purpose is decisive for the functionality and quality of the final product. Typical material choices are ABS, PS, POM, HDPE, PC, and PP.

Basic principles of mold design and mold making company in China

Those are the basics. The points listed above are just the basics and minimums to consider when designing plastic injection molds and products.

If you have new ideas, and you are at the beginning of your process as a start-up, or if you have many decisions to make in materials for your new ideas, manufacturing processes, and especially finding a mold manufacturing partner who can help bring your new ideas to life, we can be of help.

Its Decision Time

When deciding on your design and final solution, here’s everything you need to know about injection molding to make your choice. Then it’s time to call us.

In the plastic injection mold factory, plastic drying is an essential stage that can hardly be ignored. So what is plastic drying and why is it necessary to dry plastic? How is plastic drying appropriate and effective? What should be paid attention to when drying plastic?

Where should I buy a reputable and quality plastic dryer? We will answer these questions in the following article. Let’s find out right away!

Plastic drying is an important stage in the plastic production process

What is plastic drying?

Plastic drying is the work of drying plastic beads before moving the plastic beads to the next stage.

Why do you need to dry plastic?

As we all know, in a plastic injection mold factory, primary plastic particles (usually in the form of pellets), especially scraps, are often packed into paper bags or tarpaulins. There will be a situation where plastic particles absorb moisture from the air in the air. It is best for distribution, transportation, and storage.

Depending on the characteristics of the external environment as well as the geographical location, plastic materials have high or low moisture content.

If we do not dry the plastic before production, it is very likely that the physical properties of the plastic will be changed. However, this can also affect the quality of the finished product with common errors such as air bubbles, porosity, etc.

Therefore, to limit the above problems, plastic drying is extremely necessary.

Drying Plastic Materials in Plastic Injection Mold Factory

There are two issues to keep in mind when drying plastic materials: drying time and plastic drying temperature. If the drying temperature is too low or not suitable, even if it dries for a long time, it will not be able to dry the plastic thoroughly and effectively.

Therefore, it is best to apply modern designed plastic dryers with intelligent plastic injection mold factory help. It is best to ensure effective plastic drying be better.

A plastic drying hopper is the first choice to ensure the efficiency of the plastic drying process.

Working Principle of Plastic Dryers

If the plastic is not dry, it will change the physical properties and reduce the life of the plastic. Therefore, to ensure the correct and effective plastic drying process, it is necessary to have a plastic pellet dryer.

Because this comes with decent equipment with the ability to adjust the temperature, drying time, and high stability in the plastic injection mold factory.

The main operating principle of current plastic dryers and hoppers is hot air circulation. With this method, hot air circulates in a closed circle while reducing heat loss and providing excellent drying efficiency.

What is an injection mold company?

How does this device work? What outstanding advantages does the product possess? All will soon be revealed in the article below. Please read along to learn more about this line of machinery that is especially popular among the plastic industry!

What Is a Plastic Injection Mold Factory?

Injection Mold Company also provides many services such as drying centrifuge or plastic granule dryer. As the name implies, this device is common to remove water, oil, cleaning solutions, and excess paint from plastic embryos.

Therefore, the recycled product is of standard quality. Moreover, this ensures the expected durability easily. To meet the user’s requirements well, the centrifugal dryer has a very superior operating mechanism.

Two Ways Drying Process:

In a plastic injection mold factory, the machine speeds up the drying process in two ways. First, the product will create a rotating mechanism of centrifugal force, causing the water, paint solution, and dirt to remain on the workpiece’s surface to eject.

Next, the heating system of the centrifugal dryer will heat the air. They blow evenly around the dryer. Because the air is hot, the water vapor will rise faster.

And yet, inside the centrifugal stirrer, a large turbine propeller is also next to the suction machine. Therefore, after the drying process, the plastic embryos are no longer water, completely dry, but become dry to ensure the next recycling process, such as HDPE, PVC, etc. Soon, please come to the next section of the plastic injection mold factory to better understand the outstanding advantages that this line of equipment possesses.

Centrifugal Plastic Machine

With extensive experience in supplying plastic machinery, Tip-Top Molds has been proud to be a professional company for a long time. With the following outstanding advantages, the centrifugal plastic extractor machine now brings customers unexpected satisfaction.

Quiet operation

Plastic injection mold factory provides stable operation, minimizing noise during operation. Therefore, workers in factories and workshops using these devices do not worry about affecting their hearing. This has the ability to hear as well as feel uncomfortable because of working in noise-polluted environments.

Quick Drying Ability

In particular, with fast acceleration, the system of the blower and air heater closely connect, the product also offers outstanding drying ability.

On average, it only takes about 5-10 minutes. The products that need to dry quickly drain steam are no longer moist, well prepared for the next recycling process.

Outstanding Durability of Plastic injection mold factory

Possessing a high-grade alloy steel case system painted with many anti-rust layers, the device also brings a long-lasting beauty. Moreover, this avoids the natural oxidation that causes rust.

On the other hand, the surface of the machine is very resistant to collisions, against strong impact forces. Therefore, you can also own a long-lasting and bright machinery system without having to spend too much on maintenance and repair costs.

Easy to use

In particular, the plastic injection mold factory comes with a high-tech control system with clear and easy-to-understand programming. Therefore, you can soon make only equipment and make important strides, significantly improving productivity and quality in the working process.

Ability to Program on Demand

Along with that, the plastic injection mold factory also has the ability to program, set up on demand, and easily schedule. As a result, the drying workpiece ensures uniform drying, avoiding the phenomenon of quality loss that affects the durability after the recycling process.

Centrifugal Plastic Machine

In particular, the products that plastic injection mold factories provide are also highly appreciated by customers/partners because of their low power consumption, stable operation, and reasonable control of the risk of overload leading to the fire.

Combined with that, the warranty policy has a competitive price and a superior warranty policy, accompanying customers for life. Therefore, whenever you need support, a plastic injection mold factory is immediately there to work with you to solve the problem, ensuring that the planned plans are carried out easily.

Choose the Right Injection Molding Machine

Are you looking for a quality Injection molding machine but still wondering how to choose the right and secure one? Rest assured! It is easy for you to choose the most suitable plastic injection molding with the following introduced criteria. Let’s find out together now!

What to Pay Attention When Choosing a Plastic Injection Molding?

Referring to plastic injection molding, people will immediately think of outstanding advantages such as high productivity when it is possible to crush many different materials, helping businesses save a lot of labor costs.

Moreover, the machine is also highly durable, “friendly” to the user. Therefore, it is understandable those plastic injection moldings are more and more widely common.

However, when applying an injection molding machine to the production process, you should also pay attention to choosing the type of machine in accordance with the production plan, machine capacity as well as product results. And to choose the right type of plastic injection molding, you need to consider the following seven criteria:

Two-Layer Texture Plastic Injection Molding

The first criterion you need to pay attention to is choosing a plastic injection molding machine with a two-layer structure. But why should you choose a molding machine with a two-layer structure?

The chopper has two-layer. Furthermore, it will make the machine more solid, reducing vibrations when operating. Thanks to that, the machine is also capable of highly impressive noise reduction.

Even and Balanced Flywheel

The next criterion is to choose an injection molding machine equipped with wheels that are both sides and balanced. This will increase the hashing force, make the chopper more efficient, and save energy when operating. At the same time, the chopper has a balanced flywheel that also contributes to effective noise reduction and anti-vibration.

A Machine with Sensor Function

The third factor to keep in mind when buying plastic injection molding is to choose a machine.  It should come with a sensor function. This is one of the most important criteria to choose a plastic injection molding that you should not ignore. Most plastic injection moldings on the market today are not equipped with this feature.

Therefore, it will be very dangerous if we are careless during operation. Therefore, to ensure safety, choosing an injection molding machine equipped with a sensor function should be a top priority.

Chopping Reel and Transparent Screen

Choose a hash machine with an appropriate hashing wheel with a screen to prevent the hash from flying out. This not only helps ensure worker safety but also makes it easier to see inside.

Good Chopping Knife of Machine

The fifth criterion is to choose a chopper with a really good set of knives. This will be a decisive part, affecting mainly the hashing capacity of the machine.

And we can say that this is the most investment-worthy part of the injection molding machine. When the chopper comes from high-quality materials, it will have a long service life, minimize wear and bring impressive efficiency in productivity and economic value.

Injection Molding Machine with a Cooling Unit

Choose a scrap plastic injection molding with a cooler. This part plays an effective and quick role in cooling the shaft and chopper. This makes the machine work more stable, durable, and efficient. At the same time, the cooling element also helps to limit the wear process. As a result, the life of the machine is also increased.

A Chopper That Can Be Easy to Disassemble

The last and not least criterion is to choose a chopper that can be easily disassembled. In the process of using it, we need to regularly maintain the machine. And with an easily removable chopper, it saves maintenance time and improves productivity significantly.

The use of mechanical equipment and errors is not uncommon, no one wants that, but you need to equip yourself with the minimum knowledge about errors to be able to work with peace of mind or quickly handle errors. Basically, without interrupting production, below are the problems with the plastic injection molding machine and how to fix them.

Malfunctions are alerted by error lights Consists of:

1. Thermal motor (Motor temperature)
2. Engine (Main Drive)
3. Vacuum pump (Vacuum pump)
4. Cooling oil pump
5. The main motor load alarm (% torque) drifts to 95% (The main motor alarm 95%)
6. The main motor stops at 110% load (The main motor shut down 110%)
7. Metering Unit
8. Screw heating/cooling (Screw heating/cooling)
9. Melt pressure warning of plastic flow
10. General introduction of plastic mixer

A plastic mixer is generally a kind of specialized hot and cold mixer for the plastic industry. The injection molding machine is mainly common to mix PVC raw materials in the form of powder and additives, thereby producing high-quality plastic products.

Plastic mixers are divided into two main types: vertical mixers and horizontal mixers. These two types of machines have very different characteristics and use. Specific in:

Vertical Plastic Mixer injection molding

Externally, the stand mixer has a circular body with a wide flared top like a funnel. This type of machine is common to mix plastic granules. The pieces of plastic are chopped, crushed, with low moisture.

The injection molding machine works by spewing ingredients up to mix and stir well. The advantage of this type of mixer is that it has high efficiency, low cost, and is easy to put raw materials in.

Vertical Plastic Mixer Horizontal Plastic Mixer

Horizontal plastic mixers are more compact in design and size than vertical mixers. This is a low-speed plastic mixer, common for mixing pigments with resins, drying, and dyeing plastic raw materials.

The horizontal plastic mixer can mix different types of plastic, plastic beads of different colors to create colored plastic products or plastic mixtures according to production needs. Thanks to its ability to mix evenly, the machine is very popularly common for quality finished products.

The price of the horizontal plastic mixer is quite high because the motor needs a very large type to be able to mix the materials. It is also easier to feed ingredients into the horizontal plastic mixer than in the vertical mixer.

Specifications of Injection Molding Machine

The mixing tank comes in the shape of a U, made of stainless steel material, durable, easy to clean, and hygienic. The mixing blade comes of high-strength stainless steel has a two-way S-shaped spiral design, circular motion on a fixed axis, allowing rotating, shock, and mixing ingredients quickly and evenly.

The base part has a very solid structure, helping to keep the machine firmly on the ground when operating. The reducer motor supports slow rpm, which increases the quality of the finished product.

The protective door is specially designed easy to maintain.