plastic hanger injection molding machine-Haichen IMM
Compared with wooden hangers and metal hangers,plastic hangers are light and cheap, can be used in dry and wet conditions.
Also the plastic cloth hanger have strong customization ability: they are easy to shape, good in color, and rich in color.
So they have become the choice of many clothing stores and families.
Moreover, its cost is very lower. So lots hanger made by injection molding machines.
Classification of plastic hangers
There are many types of plastic clothes hangers, including:
- Regular plastic clothes hangers: common hangers suitable for various types of clothing.
- Plastic pants hangers: used for hanging pants, with two or four clips to hold the pants in place.
- Camisole-shaped plastic clothes hangers: suitable for hanging small items of clothing such as camisoles and underwear, and can effectively prevent clothes from deforming.
- Shawl-shaped plastic clothes hangers: used for hanging shawls, scarves, and other items.
- Shoe hanger-shaped plastic clothes hangers: can be used to hang shoes, keeping their shape intact.
- Parent-child plastic clothes hangers: consisting of two hangers, they can be used to hang a matching set of clothes for easy storage.
- Foldable plastic clothes hangers: can be folded for easy carrying and storage.
In addition, there are some special function plastic clothes hangers, such as anti-slip plastic hangers, rotating plastic hangers, and so on.
From the perspective of production technology, plastic hangers can be divided into the following categories:
- Extrusion molded plastic hangers: The melted plastic is extruded into a mold to form a flat hanger.
- Injection molded plastic hangers: Melted plastic is injected into a mold to create hangers of various shapes.
- Blow molded plastic hangers: Plastic pellets are melted and gas is blown into the mold to expand and shape the plastic, creating hollow hangers.
- Compression molded plastic hangers: Melted plastic is placed into a mold and pressed into shape using high temperature and high pressure to create stronger hangers.
- Rotational molded plastic hangers: Melted plastic is poured into a rotating mold, evenly covering the mold surface to create smooth and high-precision hangers.
These are common production technologies, and different methods can affect the quality, cost, and appearance of plastic hangers.
Injection molded plastic hangers can be divided into several categories:
- Standard injection molding: The most common manufacturing method, where melted plastic is injected into a mold to create hangers of various shapes and sizes.
- Two-color injection molding: By injecting different colors of plastic into the mold, hangers with two colors can be created, used for decoration and to differentiate different types of clothing.
- Transparent injection molding: Using transparent plastic and injection molding, transparent plastic hangers can be produced, suitable for displaying and selling high-end clothing.
- Hot stamping injection molding: First, a pattern or text is printed on a hot stamping film, which is then placed in the injection molding machine to transfer the pattern or text onto the hanger. This can create plastic hangers with personalized patterns and logos.
These are the common injection molding methods, and different methods can meet different production and market needs.
Differentiate from production processes
The classification of hanger molds is mainly based on the use of hangers, generally including women’s hanger, suit hanger, children’s hanger, pet hanger, bra hanger, etc.
In this way, there will be many different types of clothes hangers, which will be very confusing
However, if we distinguish from the production process, we can simply classify the plastic hangers according to their shapes:
-Light type:
It has a flat and long frame body, a relatively narrow cross section of the frame shoulder, and a small inclination of the frame shoulder. Zhaoxing is light and thin, which is suitable for airing light clothes.
-Heavy type:
The other is just the opposite. It has a wide and short frame body. The cross section of the frame shoulder is wide, and the inclination of the frame shoulder is large. The shape is thick. It is suitable for airing heavy and orthodox suits.
How to choose the law material for plastic hanger
The raw materials for injection molded plastic hangers are usually plastic materials such as polypropylene (PP) or polyethylene (PE). The following principles should be considered when selecting raw materials:
- Durability: Plastic hangers need to have a certain level of durability and strength, so plastics with high strength and durability should be selected.
- Plasticity: Plastic hangers need to have a certain level of plasticity for molding processing. Therefore, plastics with good plasticity should be selected.
- Environmental friendliness: Environmentally friendly plastic materials should be prioritized, and the use of harmful plastic materials to the environment should be avoided.
- Cost: Plastic materials with moderate costs should be selected to ensure control of production costs.
- Color: The color of plastic hangers should meet market demands and brand image requirements, so plastics with a certain color stability should be selected.
When selecting plastic materials, the production process characteristics and mold wear and tear should also be considered to ensure production stability and prolong mold life.
The mould for plastic hanger
Mold classification
From the perspective of mold production and design, injection molded plastic hangers can be divided into the following categories:
- Cold runner molds:
Manufacture simple shapes suitable for producing small quantities of plastic hangers with low cost requirements.
- Hot runner molds:
Provide greater flexibility and precision in the shape and size of plastic hangers, reduce waste of plastic materials, and are suitable for mass production of high-quality plastic hangers.
- Multi-color molds:
By combining different plastic materials during the injection process, more complex plastic hanger designs can be achieved, such as two-color, multi-color, and transparent hangers.
- Tandem-Mold:
Because the thickness of the hanger mold is thin, two molds can be overlaid. Adopting a double layer mold design with double clamping surfaces, the two layer parting surfaces are opened simultaneously and injected simultaneously during the production process. Thus increasing production capacity.
But the cost is too high, not recommended for use
These are the common types of injection molds, and different molds can meet different production and market needs.
Mould cavities
According to the difference of modeling, we can customize the mold.
Generally, clothes hanger molds can be made into multi cavity molds, and the first mock examination can produce multiple clothes hanger commodities. At present, in the process of mold processing, the majority of clothes hanger molds produce one,two or four cavities.
Light and compact, the number of cavities in the mold is usually a little more.
How to choose the injection molding machine to produce plastic hangers
The appearance of the hanger is relatively large, but its weight is relatively light. So when choosing a injection molding machine, usually just choose the machine according to the size of the mold. Ensure that the mold can be placed into the four tie bar of the injection molding machine. The weight of the injection is generally sufficient. Therefore, the selection of injection molding machines for producing clothes hangers mainly depends on the user’s production capacity and requirements.
The selection of injection molding machine size and model also needs to consider the following aspects:
- Product size: Select the injection molding machine’s injection volume and mold size based on the size of the produced product. Generally speaking, the injection volume of the injection molding machine should be slightly greater than the weight of the product to ensure sufficient injection molding and compaction.
- Mold design and structure: Based on the design and structure of the mold, select the injection rate and mold size of the injection molding machine. Products with complex mold structures, long injection paths, and high injection pressure require the selection of large injection molding machines to ensure sufficient injection molding and mold stability.
- Production efficiency: Select the corresponding injection molding machine model and configuration according to the requirements of production efficiency. To efficiently produce a large number of plastic hangers, it is necessary to choose high-speed injection molding machines and automated production lines. A servo valve controlled mold opening and closing system can be used to shorten the entire cycle time.
- Type of raw materials: Select a suitable injection molding machine based on the type of raw materials produced. For example, when selecting PP material, it is necessary to select the corresponding PP screw and barrel.
In summary, selecting the size and model of the injection molding machine requires comprehensive consideration based on various factors such as product size, mold design and structure, production efficiency, raw material types, and production environment, to ensure the stability of the production process and the controllability of product quality.
Choose injection molding machine brands and models with excellent quality, stability, and reliability to ensure production quality and efficiency.
Injection molding process control: Injection molding
The production process of the plastic clothes hanger is characterized in that the plastic products with complex shape and accurate size can be formed at one time; The same set of moulds can be used to produce the same products in batches; The product does not need further modification or processing; Good production performance, short molding cycle, automatic or semi-automatic production, high efficiency.
The process of coat hanger injection molding can be roughly divided into the following six periods: “mold closing – injection – pressure maintaining – cooling – mold opening – plastic coat hanger removal”. If the above technologies are repeated, products can be produced continuously.
