Case Study: Automatic Loading & Unloading Ultrasonic Welding Line with Vision Inspection

Customer Background

The customer required an automatic ultrasonic welding solution to be integrated with their 

existing production conveyor line. Before contacting TIMEAST, other industrial equipment

suppliers had already provided solutions, but the machines could not meet the customer’s 

production requirements.

The main problems included unstable equipment performance, poor ultrasonic welding results, 

and excessive vibration of the pick-and-place mechanism during material handling. These issues 

affected production efficiency, product consistency, and long-term operation stability.

Customer Challenges

• Previous supplier solutions were not stable enough for continuous production

• Ultrasonic welding quality was inconsistent

• Welding results could not meet production requirements

• The pick-and-place mechanical arm had excessive movement and vibration

• Product positioning was not accurate enough

• NG products could not be handled efficiently

• The production line required stable integration with conveyor transfer

• The customer needed a safer, more reliable, and easier-to-operate automation system

TIMEAST Solution

• TIMEAST designed a customized automatic loading and unloading ultrasonic welding line 

  with vision inspection according to the customer’s product structure and production process.

• The system is composed of two coordinated machines designed for production line integration. 

• The automatic loading mechanism picks products from the conveyor and places them into the 

  vision inspection position.

• The vision inspection system checks whether the previous assembly process was completed

  correctly.

• If the product is detected as NG, the mechanism automatically places it into the defective area 

  for operator removal.

• If the product passes inspection, the loading mechanism transfers it from the inspection position

  to the ultrasonic welding station.

• After welding is completed, another unloading mechanism picks the finished product and places 

  it back onto the conveyor. The conveyor then transfers the product to the next production process.

How We Improved Stability

To solve the customer’s previous stability problems, TIMEAST optimized the mechanical structure,

 motion path, fixture positioning, and pick-and-place control logic.

The mechanical handling structure was designed to reduce unnecessary movement and minimize

arm vibration during transfer. The fixtures were customized to ensure accurate product positioning 

before inspection and welding. The ultrasonic welding process was adjusted to improve welding 

consistency and appearance.

Key Improvements

• More stable pick-and-place motion

• Reduced mechanical arm vibration

• Accurate product positioning

• Improved ultrasonic welding consistency

• Stable conveyor integration

• Automatic NG product rejection

• Smooth transfer between inspection, welding, and unloading stations

• Full-process PLC control

• Improved production reliability

Working Process

1. Product is transferred by conveyor

2. Automatic loading mechanism picks the product from the conveyor

3. Product is placed into the vision inspection position

4. Vision system checks previous assembly accuracy

5. NG products are placed into the defective area

6. OK products are transferred to the ultrasonic welding station

7. Ultrasonic welding is completed automatically

8. Unloading mechanism places finished products back onto the conveyor

9. Conveyor transfers products to the next process

Production Line Layout Design

TIMEAST provided a complete production line layout solution according to the customer’s factory space,

 conveyor direction, operator position, ultrasonic welding process, and product transfer requirements.

The system was designed to achieve stable product transfer, smooth conveyor integration, accurate 

vision inspection positioning, and efficient ultrasonic welding automation.

The 3D layout design helped the customer optimize production flow, operator interaction, and equipment

 installation before manufacturing.

Safety Design

The equipment is equipped with multiple safety protection systems to ensure safe operation 

during production.

• Emergency stop button

• Three-color warning tower light

• Safety door interlock device

• Protective acrylic safety doors

• PLC-controlled operation process

Main Components

The equipment uses reliable pneumatic and electrical components to support stable long-term operation.

• SMC cylinders

• Schneider power components

• Mitsubishi PLC and HMI

• Clearly labeled electrical wiring

• Stable pneumatic control system

Customization Options

TIMEAST can customize the system based on customer product structure, production line layout, 

and process requirements.

• Electronic components can be customized according to customer requirements

• Machine color can be customized

• Acrylic safety doors can be customized

• Vision inspection system can be customized

• Fixtures and ultrasonic welding tooling can be customized

• Network connection available for production data reading and storage

• Conveyor connection can be designed according to the production line

Project Result

After optimization, the equipment achieved more stable operation, better welding consistency, 

reduced pick-and-place vibration, and smoother production line connection.

The system helped the customer improve automation efficiency, reduce manual handling, improve

 product consistency, and ensure that NG products were separated before entering the welding process.

This case demonstrates TIMEAST’s ability to provide customized automation solutions for 

ultrasonic welding, vision inspection, conveyor integration, and automatic loading and unloading applications.

Looking for a Similar Automation Solution?

Our engineering team can customize the system according to your product structure, production process, 

factory layout, and automation requirements.

Send us your product details or production requirements to discuss a suitable automation solution.

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