Electric fan manufacturing involves the use of various machines and equipment to produce the components and assemble the final product.

For plastic electric fans manufacturing machine are mostly includes many plastic injection molding machines, part taking out robot, material auto-feeder, hopper dryer, water chiller, air compressor and other support equipment. Electric fans have many parts are made by plastic injection molding machines. Like electric motor cover, blades, blades protection guard, support pols, fan bas, electric control box are mostly produced by an injection molding machine.

Injection Molding Machine:
Injection molding machines are used to produce plastic components of electric fans, such as fan bodies, grilles, or control panels. The machines melt plastic pellets and inject the molten plastic into molds, which then cool and solidify to form the desired plastic parts.

Here are some other machines used in electric fan manufacturing:

Punching Machine:
A punching machine is used to create precise holes, slots, or shapes on metal sheets or components that form the structure of the fan. It uses hydraulic or mechanical force to punch through the material.

Stamping Machine:
A stamping machine is used to cut or shape metal sheets into specific fan components, such as fan blades or motor housings. It applies pressure to the metal sheets using dies and molds to form the desired shapes.

Motor Winding Machine:
Motor winding machines are used to wind copper or aluminum wires around the motor’s stator to create the electromagnetic coils. These coils are essential for generating the magnetic field that powers the motor.

Balancing Machine:
A balancing machine is used to ensure that the fan blades are evenly balanced to minimize vibrations and noise during operation. The machine measures the imbalance and provides corrective weights to achieve balance.

Welding Machine:
Welding machines are used to join metal components together, such as connecting fan guards or mounting brackets. Various welding techniques, such as spot welding or arc welding, can be employed depending on the specific requirements.

Assembly Line Equipment:
Electric fan assembly lines consist of various equipment, such as conveyors, workstations, and fixtures, to facilitate the efficient assembly of fan components. These machines aid in the sequential assembly of parts, attachment of wiring, installation of motors, and final quality checks.

Testing and Quality Control Equipment:
Electric fan manufacturing involves testing and quality control processes to ensure that the fans meet the required standards. This can include equipment such as noise measurement devices, airflow meters, temperature sensors, and electrical testing equipment to verify performance, safety, and functionality.

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plastic injection molding machine

Factors affecting the quality of injection molding

1. Injection pressure: the reason for the need for injection pressure is to offset the resistance in the process of melt flow, or the resistance in the flow process to eliminate the pressure of the injection machine, the two are just the opposite, in order to ensure the smooth progress of the filling environment;

2. Injection time: reasonable injection time is conducive to the ideal filling of the melt, and the ear is very important to improve the surface quality of the product and reduce the dimensional tolerance;

3. Injection temperature: the injection temperature must be controlled within the range of M, the temperature is too low, the plasticization of molten materials is not good, which affects the quality of forming parts and increases the difficulty of processing; If the temperature is too high, the raw material is easy to decompose;

Two, the shortcomings of injection molding process

1, product molding must use injection molding and blow molding two sets of mold and a valve hollow core mold, and the injection mold should be able to withstand high pressure, molding equipment cost is high;

2. The temperature of the injection blank is high, and it needs a long cooling and shaping time after blowing in the injection mold, which prolongs the whole molding cycle of the product and affects the production efficiency.

3. The internal stress of the injection molding blank is large, and it is easy to be subjected to uneven cooling during the transformation of the mold. Stress cracking is easy to occur when producing products with complex shapes and large sizes.

4. The operation skills of the operators are higher

First, the advantages of injection molding process

plastic injection molding machine

1. Injection mold can be used to accurately control the wall thickness distribution of the billet, so that the wall thickness of the container is more uniform, avoiding the thinning phenomenon that is prone to occur in the corner of general blow molding products. The weight of the product can be controlled at +0.1g, the accuracy of the thread can be controlled within the range of 100μM, the mouth size is accurate, and the fine neck product molding precision is high.

2, the obtained products do not need to be processed for E times, no joints, saving the dressing time of the products;

3. The blank made by injection can all enter the blow molding mold, and there is no waste in the process, reducing the waste of forming materials;

4, can get smooth surface products, no scratches, surface text and pattern clear;

5, small batch production can be carried out economically;

6. Wide range of application for plastic varieties;

7, high degree of automation, multi-mode production, high production efficiency.

plastic injection molding machine

In 1980, France produced the world’s largest screw injection molding machine, with an injection capacity of 170kg. From the 1980s to recent years, the development of injection molding machine is mainly concentrated in several aspects: namely, the application of precision automatic control system and various auxiliary equipment in automatic molding; Precision machinery and high performance hydraulic system; Various special injection molding machine development and computer aided design of complex shape parts plastic flow analysis to determine the best injection conditions; Application of various energy saving technologies in injection molding machine.

Working principle of injection molding machine

Injection molding machine referred to as injection molding machine, injection molding is the use of plastic thermophysical properties, the material from the hopper into the barrel, the barrel outside by heating ring heating, so that the material melt, in the barrel is equipped with external power motor drive rotation of the screw, the material in the double action of the screw shear gradually plasticized, melting and homogenizing, when the screw rotation, Material in the groove friction force and shear force under the action of the molten material pushed to the head of the screw, at the same time, the screw in the material reaction backward, so that the head of the screw to form a storage space, complete the plasticization process, and then the screw in the injection cylinder piston reasoning under the action of high speed, high pressure, the storage room of the molten material through the nozzle into the mold cavity, After the molten material in the cavity is kept under pressure, cooled and solidified, the mold is opened under the action of the mold closing mechanism, and the finished product is ejected from the mold and dropped through the ejecting device.

Composition structure of injection molding machine

Injection molding machine according to the injection molding process requirements is a mechanical and electrical integration of a strong machine, mainly composed of injection parts, closing parts, frame, hydraulic system, heating system, control system, feeding device and so on.

plastic injection molding machine

At present, the common injection molding device has single cylinder type and double cylinder type.

Plasticized parts have two kinds: plunger type and screw type. In the process of continuous rotation of the screw, the plastic realizes the change of physical state, and is finally injected into the mold cavity in a molten state. Therefore, the plasticized component is the core component to achieve uniform plasticizing and quantitative injection.

To provide customers with plastic products development, mold design, product manufacturing and injection molding, its products are widely used in every field of life today, such as household appliances, instruments, wires and cables, building equipment, communications electronics, automotive industry, aerospace, daily hardware and so on.

The overall production process of plastic products is: raw material selection – raw material coloring and matching – design casting mold – machine decomposition injection molding – printing – assembly detection of finished products – packaging factory.

Plastic products are made by injection molding or blow molding, so every time you design a sample, you have to open a new mold, and the mold is generally tens of thousands to hundreds of thousands of dollars, so in addition to the raw material price of plastic products, the cost of the mold is also very large. There may be many parts to make a finished product, and each part needs a separate mold. For example, the trash can is divided into: the barrel body — the lid, the liner, the handle several parts.

Generally speaking, the plastic factory refers to the processing of plastic products with plastic raw materials, semi-finished products and finished products, such as MP3 shell, telephone shell, mobile phone shell, computer monitor shell and other plastic accessories. And finished products such as plastic cups, plastic washbasins, plastic buckets, and other daily necessities. Its essence is called plastic processing plant.

1. The forming parts refer to the parts related to the forming cavity of the moving and fixing parts.
2. The pouring system is to melt the plastic
3. Guide part in the injection mold, the guide part is used to guide the dynamic and fixed mold of the mold, so that the mold can be accurately matched when the mold is closed.
4. Push out mechanism refers to the device that pushes out the plastic parts from the mold after parting.
5. In order to meet the requirements of injection process on mold temperature, the temperature regulating system is needed to adjust the temperature of the mold. General thermoplastic injection mold is mainly designed mold cooling system.
6 exhaust system is in order to form the plastic itself volatile gas out of the mold, often in the parting surface open exhaust groove. For small plastic parts of the mold, can directly use parting surface or push rod and mold clearance exhaust.
7. Supporting parts are parts used to install and hold or support the forming parts and the aforementioned parts of the mechanism.
8. Lateral parting and core pulling mechanism is when some plastic parts have lateral concave and convex shape of the hole or boss, must first put the side concave and convex shape of the flap module or the side of the core from the plastic parts off or out.
The passage through which the basic structure of the plastic injection mold passes from the injector nozzle into the mold cavity, as shown in Figure 1-1, includes the main flow channel, diverter channel, gate and cold hole.

(1) Forming part. That is, the cavity part of plastic products formed directly after mold assembly, including punch, concave die, core, rod or insert.

(2) Mold guide part. It is a part set up to align the center shaft correctly when moving and fixing the die, including the guide post, the pilot hole cover, or the inclined conical piece.

(3) Product launching part. The molding injection product is pushed out from the molding cavity, including the ejector rod, the fixing plate, the pushing plate, the pad, etc.

(4) core extraction part. When injection molding plastic products with pits or side holes are demoulded, core mechanism components for pits and side holes forming, such as inclined guide posts, sliding blocks, bending, etc., should be extracted first.

(5) Specific heating and cooling parts of the mold. It refers to the control system suitable for the temperature of injection molding process of plastic products, such as resistance heating plate, rod and electrical control element; Circulating cooling water pipes are used for cooling parts.

 

(6) The specific supporting part of the mold. Refers to dynamic, fixed die plate, positioning ring, lifting ring, various fastening screws and other auxiliary parts, to ensure that the mold can work correctly.

(7) Pouring melt channel. It refers to the channel that can introduce the melt injected by the nozzle into the mold cavity, which can be usually divided into the main channel, the shunt channel, the bushing (gate) and the cold groove.

(8) Exhaust hole. It refers to the air discharge part in the mold cavity. General small products do not need special exhaust holes, the air in the cavity can be discharged from the gap of the accessories; For molds of large injection products, vent holes must be set up.

The number 1 represents PET, or polyethylene terephthalate

Mineral water bottles, carbonated drink bottles are made of this material. Dong Jinshi pointed out that hot water can not be recycled in beverage bottles. This material is heat-resistant to 70℃, which is only suitable for warm or frozen drinks. When loaded with high temperature liquid or heated, it is easy to deform and dissolve harmful substances to human body. Scientists found that after 10 months of use, the plastic could release carcinogens and become toxic to humans. So when you’re done, throw it away. Don’t use it as a water cup, or use it as a storage container for anything else. (The girl in the United Arab Emirates got cancer because she used the same mineral water bottle for 16 months, resulting in the release of carcinogen DEHP.)

The number 2 stands for HDPE, high density polyethylene

Plastic containers for cleaning supplies and bath products. At present, plastic bags used in supermarkets and shopping malls are mostly made of this material, which can withstand 110℃ high temperature. Plastic bags marked with food can be used to contain food. Plastic containers containing cleaning supplies and bath products can be reused after careful cleaning, but these containers are usually not easy to clean, residual original cleaning supplies, become a hotbed of bacteria, cleaning is not thorough, it is best not to recycle.

The number 3 represents PVC, or polyvinyl chloride

Common raincoat, building materials, plastic film, plastic box, etc. Good plasticity, cheap price. But can only withstand 81℃ high temperature. According to reports, this material of plastic products are easy to produce toxic and harmful substances from two aspects, one is the production process is not fully polymerized single molecule vinyl chloride, the second is harmful in plasticizer. These two substances in the encounter of high temperature and grease is easy to precipitate, poison with food into the human body, easy to cause cancer. Currently, containers of this material are used less often to package food. If in use, do not allow it to get hot.

The number 4 stands for LDPE, low density polyethylene

Plastic wrap, plastic film and so on are this material. Heat resistance is not strong, usually, qualified PE wrap in the temperature of more than 110℃ will appear hot melt phenomenon, will leave some plastic preparations that the human body can not decompose. In addition, wrap the food in plastic wrap and heat it. The fat in the food is easy to dissolve the harmful substances in the plastic wrap. Therefore, the food into the microwave oven, the first to remove the wrapping film.

The number 6 stands for PS, polystyrene

This is the material used to make instant noodles in bowls and foam fast food boxes. Heat-resistant and cold-resistant, but not in the microwave to avoid the release of chemicals due to excessive temperature. And can not be used to contain strong acids (such as orange juice), strong alkalinity.

PVC products with a plastic injection molding

PC is a material that is widely used, especially in the manufacture of baby bottles, space cups and so on. In recent years, baby bottles have become controversial because they contain BPA. Experts point out that, in theory, as long as in the process of making PC, bisphenol A 100% converted into plastic structure, it means that the product is completely free of bisphenol A, let alone release. However, if A small amount of BPA is not converted into the plastic structure of PC, it may be released into food or drink. The higher the temperature of the residual bisphenol A in PC, the more and faster the release rate. Therefore, hot water should not be served in PC water bottles. If the container has any fall or damage, it is recommended to stop using, because plastic products if there is a fine surface pit, easy to hide bacteria. Avoid repeated use of aging plastic appliances.

Room 401, Longxin Mansion，Liwan District,
Guangzhou, Guangdong Province, China
Phone: (0086) 020 765-4321
Mobile: (0086) 139 2508 7612
Contact: Mr Alvin Chan

Welcome to visit us and inspect our machine for further cooperation.

The second “China (Cangzhou) Plastic Hollow Products and Plastic Machinery Expo” (North-PLAS) is a northern plastics industry event organized by the Cangzhou City People’s Government, Dusheng Town People’s Government and China Plastics Processing Industry Association. It will be held in Cangzhou International Convention and Exhibition Center on September 15-17, 2020. The plastics industry is a basic industry, a traditional industry, and a sunrise industry. At present, Cangzhou is actively seizing the three major opportunities of coordinated development of Beijing-Tianjin-Hebei, planning and construction of Xiong’an New Area, and co-construction of the “Belt and Road”, giving full play to the three advantages of port, location and land, vigorously implementing the “Six Ones” project, and promoting The “18+7″ county-level characteristic industrial clusters, including the county pharmaceutical packaging material industry, will be bigger, stronger, refined and better, and strive to promote the Cangzhou industry to a higher level and higher level, and actively promote the transformation and upgrading of plastic manufacturing enterprises.

After decades of development, the pharmaceutical packaging material industry in Cangxian County has grown from nothing, from small to large, from a single enterprise sporadic production to now become one of the pillar industries of Cangxian. In recent years, Cang County has given full play to its own advantages such as location and transportation, seized development opportunities, vigorously developed the plastic manufacturing industry, promoted the transformation and upgrading of plastic manufacturing enterprises, expanded the scale of industrial groups, and improved the level of industrial development. Production base”.