Design of Injection Mold for Toy Car Tires Based on Pneumatics

Air valve structure used in traditional pneumatic ejection plastic parts is a cone-shaped valve of 60° to 120°. Process of ejecting plastic part by injection mold is: after mold is opened, air valve is opened, compressed air pushes valve open, and at the same time spring is compressed , high-pressure air enters gap between core

Design points for pushing out large injection molds

For plastic parts that do not allow traces of push rods on the surface of plastic parts, such as large transparent plastic parts, plastic parts such as printer covers and other plastic parts with front and back surfaces can be pushed out at the edges of plastic parts. The other type is box-type plastic parts,

What is main mold design, do you know?

Rapid development of mold manufacturing technology has become an important part of modern manufacturing technology. Such as CAD/CAM technology of mold, laser rapid prototyping technology of mold, precision forming technology of mold, ultra-precision processing technology of mold, dynamic simulation technology of flow, cooling, and heat transfer process using finite element method and boundary element method in

Six kinds of injection molding sharing

Six kinds of injection molding sharing 01 Injection compression molding Injection compression molding: Injection compression molding is an advanced form of traditional injection molding. Advantages: It can increase flow length ratio of injection molded parts; use smaller clamping force and injection pressure; reduce internal stress of material; and increase processing productivity.Injection compression molding is suitable for

Design of Forming Die for Rice Cooker Shell

Shell of rice cooker is connecting piece between middle plate and base of rice cooker. There is a handle to avoid empty space in the middle, and there is a support installation position for fixing  cover of rice cooker on rear side. Figure 1 shows structure of rice cooker shell, material is 430 stainless steel,

There is no problem with mold polishing, why is brightness of ABS injection molded parts low?

First, injection mold 1. Poor machining of mold cavity If mold cavity has defects such as scars, micropores, wear, roughness, etc., it will inevitably be reflected on plastic parts, which will make plastic parts have poor gloss. For this, mold must be carefully processed to make surface of cavity have a small roughness, and if necessary,

Common sense for structural design of plastic products

1. Adhesive thickness (adhesive position) Thickness of plastic products (overall shell) is usually about 0.80-3.00. If it is too thick, it will easily shrink and generate air bubbles. If it is too thin, it will be difficult to fill full.Larger products need to be thicker, smaller products need to be thinner, Generally, 1.0-2.0 is OK.Adhesive position should be as uniform

Choice of mold gate location and design method

Design of gate is related to size of plastic mold parts, shape of mold, plastic molding process conditions and performance of injection molded parts. However, as far as basic function is concerned, cross section of gate is small and length is short, because only in this way can requirements of increasing flow rate, rapid cooling and closing,

Do you understand design of injection molds?

Mold design considerations: (1) Shape and wall thickness of plastic parts should be specially considered to facilitate smooth filling of cavity, avoid sharp corners and notches.(2) Draft angle should be large, 1°to 2° for glass fiber 15%, and 2° to 3° for glass fiber 30%. When draft angle is not allowed, forced demoulding should be avoided, and horizontal

109 acceptance criteria for molding

After molding is completed, it needs to be accepted as a purchaser. How to inspect a pair of manufactured molds? What are inspection standards? China mold factory Heya Mold believes that mold inspection mainly include mold structure design, appearance, structural parts, mold parts processing precision, inlaying method, materials, heat treatment methods, and so on. First, appearance, size and cooperation