Plastic Injection Tooling

Does 3D Printing Replace Traditional Mould Manufacturing?

In recent years, with the development of industry 4.0, the manufacturing industry in China is developing rapidly from “manufacturing” to “intelligent manufacturing”. 3D printing technology has been widely used in China’s manufacturing industry. 3D printers can provide efficient and low-cost support for die design and manufacturing. Even with the rapid development of 3D printing technology, in some areas, it has gradually begun to subvert the die technology, forming a direct competitive relationship with it.
 
“Compared with 3D printing technology, traditional […]

Proper Quality Management Extends Tool Service Life

In the production process, tools are subject to normal wear and tear. It is certain that quality management control in daily production will play an important role in the assurance of tool quality, which mainly covers the following aspects:

Effective data management, including production data, process data and drawing documents: Effective management of production data, process data and 2D/3D drawing documents is able to ensure a complete document library and full drawing versions, leading to effective sharing and effective inquiry […]

Common problems and precautions in plastic molds making

The production process of a set of plastic molds is not a one-step process. It is necessary to grasp the structural design of the product well, so as to avoid many problems in the subsequent production process, such as shrinking and flashing.
So, what issues should you pay attention to when making molds?
Don’t just focus on product design and neglect mold manufacturing
Some users just focus on product development when developing products or testing new products, always neglect communication with mold […]

Why the venting is so important for a plastic injection mold?

The venting slot serves two purposes: 1. Expel air from the plastic injection mold during the injection process of the molten plastic material; 2. Get rid of the various gases produced during injection molding processing. The setup of venting slots is of great importance, especially for thin-walled products or the locations far away from the gate. In addition, close attention should also be paid to venting slots for the production of small-size or precision parts, because they are able […]

The reason and solution for surface roughness

Surface roughness means there is a lack of precision in the surface of a molded part, or an inconsistent level of precision all over the surface, e.g. some areas are glossier than the rest. The main reasons for surface roughness might lie in the injection molding machine, the mold, the process or the material.
 
(1)Injection Molding Machine
①Insufficient material supply;
②Material barrel is not thoroughly cleaned when changing material;
③Check for cold melt leakage at the nozzle;
 
(2)Mold
①The gate is too small, or the runner […]

Common failure of injection mold

1.1 Mold reset plate is not reset
After the mold is opened, the mold reset plate is not reset. The causes are: reset oil cylinder oil leakage, resulting in uneven force when the mold is reset. The mold reset is unbalanced.
The reset rod of the mold is strained, the cooperation between the reset rod and the guide sleeve is tightened, and the reset plate is not topped.
Solution: Check if the oil seal of the mold reset cylinder is worn out. If […]

PMMA Plastic Injection Molding Process

PMMA, i.e. polymethyl methacrylate, also known as acrylic or organic glass, is a transparent thermoplastic with a relative density of 1.19, which is higher than that of water. With a high surface glossiness, the PMMA products are characterized by strength, rigidity and toughness.
The process features of PMMA: due to the high viscosity, PMMA has a poor fluidity. Therefore, a high material temperature and a high injection pressure must be applied during the injection molding process, among which the influence […]

Discoloration issue in plastic injection molding

Discoloration means the surface color of a molded part is not consistent with the required color. Discoloration may be caused by a variety of reasons, which may cover the several aspects of injection molding machine, mold, process and raw materials, etc.
(1) Injection Molding Machine
① Equipment is not clean and needs to be cleansed. Dusts or powders are deposited in the barrel, which contaminates and discolors the materials;
② Temperature control failure caused by malfunction of thermal couple, temperature controller or […]

How to get injection mold quotation from mold maker?

How to get injection mold quotation from mold maker?
Although there are countless creative people with great creativity in this world, sometimes they just do not have the necessary knowledge to turn the creative ideas into reality.
If a project involves parts made of the plastic material, it might be appropriate to adopt the plastic injection molding process. Injection molding, the technique of choice for a large number of entrepreneurs and OEMs, is well known for its capability to turn out high volumes […]

Structural Factors to be Considered in Plastic Injection Mold Design

 

Parting surface, that is, the contact surface between the die and the punch when the die is closed. The selection of its position and form is influenced by the shape and appearance of the product, wall thickness, forming method, post-processing technology, die type and structure, demoulding method and the structure of the forming machine.

 
2, structural parts, namely, complex mold slide, oblique top, straight top block. The design of structural parts is very critical, which relates to the life of […]