Injection Moulding Machine

Injection Moulding Machine

An Injection Molding Machine, sometimes referred to simply as an injection machine, is a specialized machine that produces various plastic goods. Most plastic injection molding machines comprise two primary components: the injection device and the clamping unit. The injection unit’s job is to turn the plastic pellets that have been put into liquid by heating them. The clamping unit is utilized to transport the mold and supply the necessary force to close, clamp, and perform various other operations on the mold. In general, the advantages that come along with the use of an injection moulding machine are quick processing and low overall cost.
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Description

Company Profile

 

 

Wenzhou Jingfei Plastic Machinery is located in Wenzhou Ruian, One of mostly famous Mechanism city. Our company is a manufacture of thermoforming machine, Our company is a technology innovation firm, Including machine designing, spare parts manufacture, installment, commission, and mold designing etc
During the marketing and after service , We give the best advise of Our clients, help clients to built a good marketing , increase the competition on Our clients

 

Why Choose Us
 

Wide Range of Applications
Our products are used in many filed, such as PP,PS,PVC,PET, food container, lid, cups, plastic trays, plate, fruit boxes, egg tray boxes, seed nursery plate, display trays, cosmetic trays, pharmaceutical trays.

 

Wide Production Market
Our machine widely sale to USA, Greece, Serbia, Indonesia, Vietnam, Malaysia, Middle east, South America.

 

Quality Assurance
We have professional equipment to ensure products quality, such as Radial drilling machine, turning machine, CNC milling machine, grinder and polish. And we have one year warranty time. During these time, if all the mainly machine parts were broken, we will change the new parts for free.

 

After-Sales Service
We supply 24 hours on line after service. We also send the engineer to clients work shop for installment and commission the machine.

 

Egg Tray Box Thermoforming Machine

Clamshell Automatic Thermoforming Machine

Clamshell Automatic Thermoforming Machine could help the plastic company to save the human cost, solve the problem of complicate producing the plastic, make the final products more clean.

Egg Tray Box Thermoforming Machine

Thermoforming Packaging Machine

Lunch boxes Making Machine could forming PP lunch boxes automatically. PP lunch box could use in micron wave. Also could make like PP lid, trays, plate, egg boxes, clamshell etc.

Egg Tray Box Thermoforming Machine

Plastic Injection Machine

PP-550 Disposable plastic Injection machines are different from the traditional injection machine, it use plastic sheet, forming, punching, cutting and stacking the products.

Egg Tray Box Thermoforming Machine

Best Thermoforming Machine

Servo motor control Plastic Thermoforming machine mainly use for produce disposal plastic products, the whole machine are controlled by servo motor. Including forming, cutting and stacking station.

Egg Tray Box Thermoforming Machine

Plastic Cover Making Machine

PET Fruit box thermoforming machine is not only produce PET Fruit box, also produce like egg trays, food boxes, plate, lid, plastic trays . machine have forming, punching, cutting and stacking, total 4 stations.

Egg Tray Box Thermoforming Machine

Egg Tray Box Thermoforming Machine

Egg tray box Thermoforming machine is not only produce egg tray box , also produce like fruit box , lunch boxes, party plate, lid, plastic trays . machine have forming, punching, cutting and stacking, total 4 stations.

Egg Tray Box Thermoforming Machine

Thermal Vacuum Forming Machine

PP-550 Thermoforming Machine for PET is the most advanced technology, fully automatic forming, punching, cutting and stacking the PET sheet. also could use for PP, PS, PVC sheet

Egg Tray Box Thermoforming Machine

PP Thermoforming Machine

PP-550 PP Sheet thermoforming machine is mostly advanced machine in China, use special driving system, work PP, PS/PVC/PET. Especially work for PP, it could forming well, cooling the mold in time.

Egg Tray Box Thermoforming Machine

Lid Making Machine

PP-550 thermoforming machine for biological material is mostly advanced machine in China, use special driving system, it could work for BIO material, make the disposal plastic more environmental

 

What is Injection Moulding Machine

 

 

An Injection Molding Machine, sometimes referred to simply as an injection machine, is a specialized machine that produces various plastic goods. Most plastic injection molding machines comprise two primary components: the injection device and the clamping unit. The injection unit's job is to turn the plastic pellets that have been put into liquid by heating them. The clamping unit is utilized to transport the mold and supply the necessary force to close, clamp, and perform various other operations on the mold. In general, the advantages that come along with the use of an injection moulding machine are quick processing and low overall cost.

 

 
Benefits of Injection Moulding Machine
 
01/

Higher quality
The precision of these molds is higher than other types of molds, which means they can provide a better surface finish for your parts. In addition to this advantage, there are also fewer defects due to their intricate design.

02/

Better surface finish
Injection molding machines can produce a better surface finish than traditional injection molding machines. Why? Because they can make more minor features, which allows them to have tighter tolerances, and, therefore, a smoother finish. The ability to create tiny features also means that the quality of your parts will be higher, and the time it takes to make those parts will be shorter.

03/

Cost-effective
An efficient manufacturing method can produce many parts at a lower cost than traditional injection molding. As mentioned in the previous section, they are more cost-effective than other methods in several ways. Here we will introduce them one by one:

04/

Improved safety
They are safer than larger machines. Since the equipment is smaller and more compact, there is less chance of error. Each mold has a safety lock that prevents the mold from closing if there is an obstruction. This protects workers from potential injury if the machine pinches them when closing.

 

How Does an Injection Molding Machine Work
 

Embarking on the journey of how an injection molding machine operates unveils a fascinating blend of technology and precision. The process initiates with feeding plastic pellets into the machine's hopper, a crucial step that determines the raw material's journey towards transformation. These pellets are then transported to the barrel of the machine, where they are subjected to intense heat. This heat melts the pellets, turning them into a viscous liquid ready for molding.

 

The molten plastic is then propelled forward by a screw or plunger through the injection unit. This movement is not merely a transfer but a critical phase where the plastic is prepared under pressure for injection into the mold cavity.

 

The precision with which the molten plastic is injected into the mold is pivotal, as it ensures the material fills the entire cavity, reaching every nook and cranny to replicate the mold's intricate designs and shapes.

 

Once the mold is filled, the plastic needs to cool and solidify, a transformation that is as crucial as the melting process. The cooling period is meticulously timed to ensure the material sets correctly, embodying the desired characteristics of strength, durability, and aesthetic appeal.

 

Upon solidification, the newly formed plastic part is ejected from the mold, marking the culmination of a process that melds raw materials into functional, often essential, products.

 

Type of Injection Moulding Machine

 

Automatic Thermoforming Machine

Hydraulic Plastic Injection Molding Machine

The hydraulic injection machine relies largely on hydraulic power for its injection force. When creating plastic components, you should also manage and change the temperature of the machine; otherwise, it is easy to create scrap. The hydraulic plastic injection molding machine should constantly be operated to prevent the machine from being harmed by inactivity.

Horizontal Type Blister Packing Machine

All-Electric Injection Molding Machine

The price of an all-electric injection molding machine is higher than that of a hydraulic injection machine. However, because an all-electric Engel injection molding machine or one of the other brands doesn't need to be on standby or change the temperature, the injection molding products are more stable. They can be more efficient than those made by the hydraulic injection machine. The fully electric injection machine does not have a hydraulic system. Thus there is no possibility of liquid leaking out of the device at any point.

Paper PVC Blister Thermoforming Machine

Hybrid Injection Molding Machine

The Netstal injection molding machine or other brands of machines comprising a hybrid operating technology possesses the qualities of high efficiency as well as financial advantages. It is designed as a model that incorporates the benefits of the hydraulic and all-electric type of Injection Molding Machine process. It is a machine for injecting plastic that is used by many firms nowadays and acts as a counterweight to the other two. There are medium costs for both the machine itself and its energy, which is one of the advantages and downsides of using a hydraulic press.

 

How Are Injection Molding Machines Sized and Classified

 

Injection molding machines are primarily sized based on three critical parameters: clamping force, shot size, and additional criteria such as platen size, tie bar spacing, and injection pressure.

 

Each of these factors plays a significant role in determining the machine's suitability for specific molding tasks, affecting aspects such as the type of products it can produce, the materials it can handle, and its overall performance in a production environment.

 

●Clamping Force
The clamping force of an injection molding machine is measured in tons, indicating the amount of force the machine can exert to keep the mold closed during the injection process. This force is crucial for preventing the molten plastic from escaping the mold cavity, ensuring the production of precise and accurate parts.

 

Importance in Production: A machine with insufficient clamping force may produce parts with defects due to the mold opening under high injection pressure.


Selection Criteria: The required clamping force depends on the part's size, the material used, and the design of the mold cavity.

 

●Shot Size
Shot size, measured in ounces or cubic centimeters, refers to the maximum amount of plastic that the injection unit can inject into the mold in one cycle. It's a critical factor that determines the machine's capacity to produce parts of a certain volume.

 

Implications for Product Design: Machines with a smaller shot size are limited to producing smaller products, while those with a larger shot size can accommodate larger, more voluminous parts.


Determining Factor: The choice of shot size is influenced by the size of the product to be manufactured and the weight of the material required to fill the mold cavity.


●Additional Classification Criteria
Beyond clamping force and shot size, several other parameters are considered when classifying injection molding machines, enhancing the specificity with which machines can be matched to production needs.

 

Platen Size: The dimensions of the platen determine the maximum size of the mold that can be accommodated.


Tie Bar Spacing: This measurement affects the size of molds that can be used and is crucial for ensuring machine versatility.


Injection Pressure: High injection pressures are necessary for molding materials with high viscosity or for filling complex mold cavities.

 

Some of the Basic Components of Injection Molding Machines

 

 

Hopper
The hopper is the part of the injection molding machine where the plastic pellets are stored before they are melted and injected into the
mold. The hopper is typically made of plastic or stainless steel and is equipped with a heater to help melt the plastic.

 

Screw
The screw is the component of the injection molding machine that moves the plastic pellets from the hopper to the heating chamber.
The screw is usually made of steel and is driven by a motor.

 

Heating Chamber
The heating chamber is where the plastic pellets are melted by the heat generated from the heater bands around the chamber.The
temperature in the heating chamber must be carefully controlled to ensure that the plastic is melted to the right temperature and
viscosity.

 

Injection Unit
The injection unit is responsible for injecting the melted plastic into the mold. The injection unit consists of a barrel, nozzle, and mold
clamp.

 

Clamping Unit
The clamping unit is responsible for holding the mold in place during the injection molding process. The clamping unit consists of two
platens that close around the mold and hold it in place with a high amount of force.

 

Controller
The controller is the brain of the injection molding machine. It is responsible for controlling the various components of the machine,
such as the heating chamber, injection unit, and clamping unit.

 

Application of Injection Moulding Machine
 

Automotive Industry

Injection molding machines are essential in the automotive sector, producing a wide range of parts such as dashboards, bumpers, interior trim components, and under-the-hood parts. These machines enable the mass production of durable and high-quality components that meet the stringent standards of the automotive industry.

 

Medical Devices

In the medical field, precision and reliability are paramount. Injection molding machines manufacture medical devices, including syringes, vials, surgical instruments, and diagnostic equipment. The ability to produce sterile and biocompatible plastic parts makes these machines indispensable in the medical industry.

 

Consumer Electronics

The consumer electronics industry relies on injection molding machines to produce components like housings, connectors, and keypads. These machines enable the production of intricate and precise parts that are essential for the functionality and aesthetic appeal of electronic devices.

 

Packaging

Injection molding is widely used in the packaging industry to create containers, caps, closures, and other packaging solutions. These machines allow for the efficient production of lightweight, durable, and cost-effective packaging that meets the high demands of the market.

 

Household Goods

From kitchen utensils to furniture, injection molding machines are used to produce a variety of household goods. The ability to manufacture high-quality and aesthetically pleasing plastic products in large quantities makes these machines ideal for the consumer goods sector.

 

Industrial Components

Injection molding machines are also utilized in the production of industrial components such as gears, bearings, and valves. The precision and durability of parts produced by these machines ensure they can withstand the demanding conditions of industrial applications.

 

Maintenance Tips to Keep Your Injection Molding Machines Healthy
 

 

Injection molding equipment is the backbone of many manufacturing operations, enabling the production of a wide range of plastic products efficiently and cost-effectively. However, like any machinery, injection molding equipment requires regular maintenance to ensure optimal performance, longevity, and safety.

1. Regular Inspection

Regular inspections are key to identifying potential issues early on and preventing them from escalating into more significant problems. Schedule routine inspections of your injection molding equipment to check for signs of wear and tear, loose connections, leaks, and other issues that may affect performance. Pay close attention to critical components such as screws, barrels, nozzles, and hydraulic systems.

2. Lubrication

Proper lubrication is essential for ensuring smooth operation and preventing friction-related damage. Refer to the manufacturer's guidelines to determine the appropriate lubricants and lubrication intervals for different components of your injection molding equipment. Over-lubrication can be as detrimental as under-lubrication, so follow the recommended guidelines carefully to avoid excess buildup and contamination.

3. Cleanliness

Maintaining cleanliness is crucial for preventing contamination and ensuring the quality of molded products. Regularly clean the surfaces, molds, and components of your injection molding equipment using suitable cleaning agents and techniques. Pay particular attention to areas prone to buildup, such as cooling channels, ejector pins, and vents. Implementing a comprehensive cleaning regimen will help prolong the lifespan of your equipment and minimize the risk of defects.

4. Temperature Control

Maintaining precise temperature control is essential for achieving consistent molding results and preventing thermal degradation of materials. Calibrate and monitor the temperature settings of heating elements, molds, and cooling systems regularly to ensure they are operating within the specified range. Periodically inspect and clean heating elements, thermocouples, and temperature sensors to maintain accuracy and reliability.

5. Replace Worn Components

Over time, components of injection molding equipment may wear out or become damaged due to prolonged use. Keep an inventory of spare parts and regularly replace worn or damaged components to prevent unexpected breakdowns and downtime. Components such as seals, O-rings, nozzles, and heating elements should be replaced as part of routine maintenance to ensure optimal performance and reliability.

 

 

Our Factory

Our mainly products is PP-550 Automatic Thermoforming Machine. This machine is Our technical innovated according to the marketing request. This machine could automatically feeding the sheet,heating,forming, punching,cutting, stacking and waste reclaiming. Forming ,punching and cutting are work independent.Forming and cutting are control by separate servo motor,both top mold and bottom mold are movement during the work, it could make double gulge productes like egg trays.

 

FAQ
 

Q: What is an Injection Moulding Machine?

A: An Injection Moulding Machine is a manufacturing system used for producing parts by injecting molten material into a mould. It is commonly used in mass production of plastic parts.

Q: How does an Injection Moulding Machine work?

A: The process involves heating plastic pellets until they are molten, then injecting this material under high pressure into a mould cavity. Once cooled and solidified, the part is ejected from the mould.

Q: What materials can be used in an Injection Moulding Machine?

A: A variety of thermoplastics and some thermosetting polymers can be used. Common materials include ABS, PP (polypropylene), PE (polyethylene), and PVC (polyvinyl chloride).

Q: What are the main components of an Injection Moulding Machine?

A: Key components include the injection unit, the clamping unit, the mould, the control system, and auxiliary equipment such as a material dryer and a material hopper.

Q: What is the role of the clamping unit in an Injection Moulding Machine?

A: The clamping unit holds the mould in place during the injection process to withstand the high pressure of the molten plastic. It also facilitates the opening and closing of the mould.

Q: How does the cooling system in an Injection Moulding Machine work?

A: Cooling is critical for solidifying the part and preventing deformation. Water channels within the mould circulate water to cool the mould cavity and the part until it is ready to be ejected.

Q: What are the advantages of using an Injection Moulding Machine?

A: Injection moulding offers high-speed production, high repeatability, and the ability to produce complex shapes. It is cost-effective for mass production and can use a wide range of materials.

Q: How do you maintain an Injection Moulding Machine?

A: Regular maintenance includes cleaning the machine and mould, checking and replacing worn parts, lubricating moving components, and performing routine inspections to ensure optimal performance.

Q:What factors affect the quality of parts produced by an Injection?

A:Moulding Machine,Factors include material properties, temperature control, mould design, pressure during injection, and the cooling process. Precise control over these factors is essential for maintaining part quality.

Q: How do you troubleshoot common issues with Injection Moulding Machines?

A: Common issues like warping, sink marks, or short shots often result from material properties, temperature, or pressure settings. Troubleshooting typically involves adjusting these parameters or inspecting the mould for wear or damage.

Q: Who uses injection molding machine?

A: Used in devices such as remote controls, computers, televisions, medical equipment, and other consumer electronic components, housings are all produced by injection molding process. Injection molding services can manufacture any custom plastic enclosures for practically any application and sizes.

Q: What is the most common injection molding machine?

A: The horizontal injection molding machine is used the most and has the broadest range of applications. This machine is designed with a comparatively low body, rapid molding, and user-friendliness in operation and maintenance.

Q: How much electricity does an injection molding machine use?

A: The hourly power consumption of Ts series injection molding machines ranges from 5kWh to 20.9kWh depending on the model, mainly affected by the size and clamping force. The chart shows that models with higher clamping force and larger injection capacity will consume more power.

Q: What can you make with an injection moulding machine?

A: Whether it's containers, shampoo bottles, cosmetic packaging, soap dispensers, or plastic kitchenware, there are a lot of everyday household items that are mass-produced using injection moulding.

Q: What is the purpose of injection Moulding machine?

A: Injection moulding is used to make a range of widely used products, including common plastic items like bottle tops as well as remote control casings, syringes and more. It is also commonly used for manufacturing larger items such as car body panels.

Q: How long do injection molding machines last?

A: Mid-Range Molds (Class 102 and 103): These are suitable for medium to high volume production, with life expectancies ranging from 100,000 to 500,000 cycles. Class 102 molds can typically withstand up to half a million cycles, while Class 103 molds are often limited to around 100,000 cycles.

Model No.

PP 550

Cutting cycle

10-24punch/min

Raw Material

PP/PS/PET/PVC/PLA

Forming area

550*350*70mm

Heating Power

65KW

Total Power

380V 50HZ 80KW

Water Consumption

0.3m³/h (Tap water or recycle water)

Air Pressure

0.5-0.8(mpa)

Pressure of water supply

0.2MPa

Dimensions (L×W×H)

5950*1725*1900mm

Area occupied

8700*3600

The maximum diameter of plastic roll

700mm

Total Weight

5500KG

 

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