Plastic product threads are divided into two types: external threads and internal threads. External threads with low precision are generally formed with Huff blocks, while internal threads mostly require a thread removal device.
A thread mold is a mold used to produce threaded parts. Its design and manufacturing have high technical content and precision requirements. This article will take design and manufacturing of a thread mold as an example to introduce the entire process and precautions.
Oil cylinder + rack

 

Determine mold type: Select appropriate mold type according to product requirements. In this case, we chose an injection molding thread mold.
Analyze product: Perform a detailed analysis of threaded part to be produced, including its geometry, size, material, surface quality, etc.
Design mold structure: Design a reasonable mold structure based on product analysis results. Including cavity layout, gate location, cooling system, etc.
Determine mold material: Select appropriate mold material to meet requirements such as strength, wear resistance, and corrosion resistance. In this case, we chose 35CrMo alloy steel.
Draw mold drawings: Based on design results, draw detailed mold drawings, including parts drawings and assembly drawings.
Oil motor/motor+chain

 

Prepare materials: Prepare required materials according to drawing requirements. In this case, we need to prepare 35CrMo alloy steel.
Machining cavity: Use a CNC machining center to process cavity to ensure that size and shape of cavity meet design requirements.
Processing gates: Precisely process gates to ensure accurate gate position and appropriate size.
Manufacturing cooling system: According to design requirements, a suitable cooling system is manufactured.
Assembly and debugging: Assemble all components together and debug to ensure mold is working properly.
Rack + taper gear

 

Cavity inspection: Use a three-dimensional coordinate measuring instrument to inspect cavity to ensure that size and shape of cavity meet design requirements.
Gate inspection: Inspect gate to ensure that gate position is accurate and size is appropriate.
Cooling system testing: Test cooling system to ensure good cooling effect.
Comprehensive testing: Conduct comprehensive testing to simulate actual production conditions, detect performance and stability of mold.
Rifle wire nut

 

 

Through this thread mold design and manufacturing case, we successfully completed mold design and manufacturing task. During design and manufacturing process, we pay attention to detail processing and precision control, ultimately achieve efficient and stable operation of mold. Through this case, we realized that design and manufacturing of thread molds need to fully consider product characteristics, material properties, production processes and other factors, while focusing on technological innovation and quality improvement.

 

In the future, we will continue to conduct in-depth research on design and manufacturing technology of thread molds and continuously improve manufacturing level and product quality of molds. At the same time, we will actively explore new materials and processes to improve performance and life of molds to meet changing market demands.