foam pump injection mould

The foam pump injection mold is a molding tool used to produce foam pumps. The following is a detailed introduction to it:
Structure of the foam pump injection mold
Cavity and core: This is the core part of the mold, and its shape and size directly affect the quality and performance of the foam pump. The cavity and core are usually made of high-quality steel through precision processing, requiring high-precision matching and good surface roughness to ensure that the molded foam pump has a smooth appearance and accurate size.
Foam pump injection mold pouring system: It includes main channels, branch channels, gates and cold material holes, etc. Its main function is to evenly introduce the molten plastic into the cavity. The position, size and shape of the gate need to be carefully designed to ensure that the plastic can fill the cavity quickly and smoothly, while reducing the generation of turbulence and bubbles.
Foam pump injection mold cooling system: In order to improve production efficiency, the mold usually needs to set up a cooling system, such as opening cooling water channels around the cavity and core, and taking away the heat generated during the molding process through circulating cooling water, so that the plastic product can be quickly cooled and shaped, shortening the molding cycle.
Foam pump injection mold demoulding mechanism: Common demoulding methods include gate demoulding, push plate demoulding, and push tube demoulding. Reasonable demoulding mechanism design can ensure smooth demoulding of the foam pump without damaging the product.
Foam pump injection mold material selection
Steel: High-quality mold steel is usually selected, such as P20, 2379, etc. These steels have good comprehensive mechanical properties and can meet the strength, rigidity and wear resistance requirements of the mold.
Special materials: For some foam pumps with special requirements, such as corrosion resistance and high temperature resistance, the mold may use special materials, such as stainless steel, beryllium bronze, etc.
Key points of foam pump injection mold design
Precision control: The precision requirements of foam pump parts are high, and the design and manufacture of the mold need to ensure high precision, such as the matching clearance and position accuracy of the cavity and core, to ensure that the molded foam pump can be assembled well and work normally.
Structural optimization: According to the structural characteristics of the foam pump, the mold is optimized and designed, such as reasonably setting reinforcing ribs and supporting structures, so as to improve the rigidity and stability of the mold, prevent the mold from deforming during use, and affect the quality of the product.
Automation design: In order to improve production efficiency and reduce labor costs, the mold can be designed as a structure used in conjunction with automation equipment to achieve functions such as automatic feeding, automatic demoulding, and automatic pickup.
Foam pump injection mold manufacturing process
Processing technology: Use advanced processing equipment and technology, such as CNC machining center, EDM, wire cutting, etc., to precisely process each component of the mold to ensure its dimensional accuracy and surface quality.
Heat treatment process: Perform appropriate heat treatment on the mold, such as quenching and tempering, to improve the hardness, wear resistance and toughness of the mold and extend the service life of the mold.
Foam pump injection mold quality inspection
Dimension inspection: Use three-coordinate measuring instruments, measuring tools, etc. to accurately measure the dimensions of key parts such as the mold cavity, core, and gate to ensure that the accuracy of the mold meets the design requirements.
Performance testing: The cooling performance, demoulding performance, strength, etc. of the mold are tested and inspected to ensure the stability and reliability of the mold during use.
Foam pump injection mold application field
Foam pumps are widely used in cosmetics, pharmaceuticals, personal care and other fields. Products such as facial cleansers, hand soaps, shower gels, shampoos, disinfectants, etc. all require foam pumps to facilitate access and control dosage. Therefore, foam pump injection molds play an important role in the production and manufacturing of these industries.