Mold Frame
Mold bases, also known as mold blanks or mold seats, serve as the foundation for molds, facilitating installation, providing support, protection, and connecting critical mold components (core pins). Since mold blanks do not participate in the molding process, their shape does not change with the part design; it only relates to the part's size and structure. Therefore, mold blanks can be standardized, meaning they have a similar form with varying sizes and thicknesses, making them easy to process. Mold blank manufacturers can first produce various sizes of mold blank components (such as templates, guide pins) and then assemble them into complete sets according to customer requirements. The mold blank standards include Longji, Futeba, HASCO, etc. Standard mold base processing equipment primarily includes milling machines, grinding machines, and drilling machines. Milling machines and grinding machines process the six surfaces of the mold base to the specified dimensions. Drilling machines bore holes with lower precision requirements on the mold base, such as screw holes and lifting ring holes, and perform threading. The basic requirement for a standard mold base is to ensure smooth mold opening. The ease of mold opening is directly related to the precision of the four guide pin holes. Therefore, it is generally necessary to use CNC vertical machining centers for quick drilling and boring to achieve the required precision.
Plastic Mold Jigs
Mold injection molding is a processing method used for mass production of complex-shaped components. The specific principle is: melt the plastic raw material by heating and push it into the mold cavity of the plastic mold with the screw of the injection molding machine under high pressure. After cooling and solidifying, a plastic shaped product is obtained.
Plastic molds consist of two parts: the moving mold and the fixed mold. The moving mold is mounted on the moving template of the injection molding machine, while the fixed mold is mounted on the stationary template. During injection molding, the moving and fixed molds close to form the gating system and the mold cavity. When the mold opens, the moving and fixed molds separate to allow for the removal of the plastic product.
The structure of plastic molds may vary greatly due to differences in plastic types and properties, the shapes and structures of plastic products, and the types of injection machines, but the basic structure remains consistent.
Molds are used in industrial production for injection molding, blow molding, extrusion, die casting, forging, and stamping to obtain the required products through various mold and tooling methods. In short, mold frames and molds are tools used for forming articles, composed of various parts. Different molds are made up of different parts. They primarily achieve the shaping of objects by altering the physical state of the material being formed. Known as the "industrial" tool. It is a tool that, under external force, transforms blanks into articles with specific shapes and dimensions. Widely used in cutting, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting, and the molding processes for engineering plastics, rubber, ceramics, and other products. Molds have specific contour or cavity shapes. The application of edged contour shapes allows the blank to separate along the contour line (cutting). The application of cavity shapes enables the blank to acquire the corresponding three-dimensional shape. Molds generally consist of the moving mold and the fixed mold (or the male and female molds), which can be separated and assembled. When separated, the finished product is removed; when assembled, the blank is injected into the mold cavity for shaping. Molds are precision tools; a standard mold frame factory; their shapes are complex, and they require precise mold frames that can withstand the expansion force of the blank. They have high requirements for structural strength, rigidity, surface hardness, surface roughness, and machining accuracy. The development level of mold production is one of the important indicators of the level of mechanical manufacturing.
