一,Definition and basic functions of injection molds
1. Basic functions of molds
The main job of a mould is to hold up the injection pressure from the injection moulding machine and guide the plastic into the mould cavity in the right way so that the product is the right size and form. There are numerous levels of mould complexity needed for different sorts of plastic products
2.Materials and processing methods of molds
It is usually built of steel or aluminium alloy that is very durable. It is then machined, heat-treated, and surface-treated to make sure it doesn't wear out and stays stable for a long time. This material and processing method make the mould very strong and precise
3. How moulds and injection moulding equipment work together
The mould itself doesn't have any power, thus you need to utilise it with an injection moulding machine to finish the plastic moulding process. The injection moulding machine gives the injection pressure, temperature control, and locking force
二, Is an injection mould a piece of mechanical equipment?
1. Basic ideas about machines
Injection moulding machines, stamping machines, extruders, and other mechanical equipment are examples of devices that can do work on their own and have power or drive systems. This kind of equipment can work on its own in production and do duties on its own.
2. Moulds as instruments to help with production
Injection moulds can't work on their own because they don't have a power source. They can only use injection moulding machines to make plastic shapes. So, to be precise, it is not mechanical equipment but rather production auxiliary tools or precision fixtures.
三,The role of injection molds in production
1. Find out how good and accurate the product is
The accuracy of moulds has a direct effect on the dimensional tolerances, surface quality, and structural performance of plastic parts. Even if the injection moulding equipment works well, the end product may still be thrown away if the mould design is bad or the processing precision isn't good enough.
2. Changes how well things are made
Multi-cavity moulds or hot runner moulds may make more than one part at a time. This makes production more efficient and uses less energy for each unit of product. Good design and upkeep of moulds are crucial parts of making sure production goes well.
3. The economic value of using something for a long time
Businesses need high-quality injection moulds since they can be used for hundreds of thousands of injection cycles. When businesses buy or invest in moulds, they need to think about how long they will last
四,The connection between injection molds and mechanical equipment
1. Depend on machines to make things work
The injection moulding machine controls the temperature and pressure of the injection, and the mould shapes the plastic. Injection moulding machines can't make precise components without moulds, and moulds can't work without an injection moulding machine.
2. Technical needs that go well together
When designing a mould, you should think about the injection moulding machine's locking force, injection volume, and capacity to control temperature. When choosing an injection moulding machine, you should also think about the mold's number of cavities, size, and flow channel system
五,The distinction between managing mould assets and managing mechanical equipment
1. Accounting for fixed assets
On a company's balance statement, mechanical equipment is normally reported as a separate fixed asset. Moulds, on the other hand, may be listed as "mould type fixed assets" or as "equipment ancillary assets" in the total cost.
2. How to figure up depreciation and how long the service life is
People normally think of the service life of mechanical equipment in years. However, mould depreciation is based on the injection moulding cycle or production cycle number, which is a better way to show how much it can take and how much it is worth in real life.
3. Keep disparities in management
When you maintain mechanical equipment, you usually have to work on the electrical, hydraulic, and power systems. When you maintain mould, you mostly have to polish the surfaces, keep the guiding components, cooling channels, and ejection mechanisms in good shape
六,Technical characteristics and classification of molds
1. How to sort moulds
There are single cavity moulds, multi cavity moulds, hot runner moulds, combination moulds, and other types of injection moulds. Each mould is made for a certain size of product, a certain amount of production, and a certain type of material.
2. Technical details
Moulds are very precise and can sustain a lot of wear and tear. To be able to function with injection moulding machines for a long time under high pressure, they normally need to be heat-treated and have their surface strengthened. It has a complicated cooling system
