A screening machine and screening system for screening solder balls

The screening machine, which uses a composite vibration mechanism and a stepped screening path, solves the problem of separating impurity particles and bonded balls in welding balls, achieving efficient and accurate welding ball screening and improving product quality and production efficiency.

CN224486733UActive Publication Date: 2026-07-14NINGBO S J ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO S J ELECTRONICS CO LTD
Filing Date
2025-07-28
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing solder ball manufacturing equipment is unable to effectively separate impurity particles and bonded balls with small size differences, resulting in insufficient uniformity and precision of solder ball products, which cannot meet the requirements of high-precision packaging.

Method used

The screening machine adopts a composite vibration mechanism and a stepped screening path. The vibrating screen plate is driven to vibrate in different directions by a vibration motor. Combined with the stepped screening surface and groove design, it can achieve efficient separation of bonded welding balls from qualified welding balls.

Benefits of technology

It improves the accuracy and efficiency of solder ball screening, reduces material waste, adapts to the screening needs of various solder ball specifications, and ensures the purity and production efficiency of high-quality solder ball products.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224486733U_ABST
Patent Text Reader

Abstract

This application provides a screening machine and screening system for screening weld balls. The screening machine provided by this application includes a frame, a material inlet, a vibrating motor, a vibrating screen plate, a bonded ball collecting assembly, and a single ball collecting assembly. The frame includes a top plate and a bottom plate. The material inlet is disposed at the first end of the top plate. The vibrating screen plate is suspended below the top plate and is inclined in the direction from the first end to the second end. The vibrating motor is mounted on the bottom plate and connected to the vibrating screen plate to drive the vibrating screen plate to vibrate in a combined manner along a first vibration direction and a second vibration direction. The vibrating screen plate has a first screening surface and a second screening surface in sequence along the first vibration direction, with the second screening surface being higher than the first screening surface. The first screening surface has a plurality of parallel grooves extending along the second vibration direction. The bonded ball collecting assembly is disposed at the end of the groove along the second vibration direction and is used to collect bonded weld balls. The single ball collecting assembly is disposed at the end of the second screening surface and is used to collect qualified weld balls.
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