Nut-Insert Injection Molding and Inspection Using a Yushin Take-Out Robot

Process Overview

This assembly automation solution uses a YUSHIN take-out robot (SCⅡ 150) to perform insert molding, placing a nut into the mold and overmolding it with plastic, followed by automated inspection. By automating both the insert-loading operation and the downstream inspection process, the system minimizes quality-control touchpoints while improving overall productivity.

Components

Robot	Insert injection molding equipment (optional / separate) Bowl feeder (BOWL FEEDER) Nut loading cylinder Finished-part transfer unit (post-insert) Insert orientation-change jig Vision inspection system
Peripherals	Insert injection molding equipment (optional / separate) Bowl feeder (BOWL FEEDER) Nut loading cylinder Finished-part transfer unit (post-insert) Insert orientation-change jig Vision inspection system

Workflow

STEP 1.	Feed and singulate nut blanks via the bowl feeder
STEP 2.	Pick four nut blanks
STEP 3.	Load them into the insert-molding station
STEP 4.	Take out the insert-molded parts and load them onto the finished-part transfer unit
STEP 5.	Move the parts to the orientation-change jig
STEP 6.	Pick parts one-by-one for vision inspection
STEP 7.	Sort and discharge into trays based on inspection results

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Key Features

Improved Production Efficiency and Quality

Continuous, low-idle operation improves overall production efficiency.
Total inspection minimizes defect rates.
Fewer control points reduce the number of operators required.

Cost-Effective Performance with a Dedicated Take-Out Robot

A dedicated take-out robot enables a compact installation and overhead handling.
Optimized motion profiles support high-speed cycle operation.
Compared to articulated robots, this tailored solution minimizes upfront investment cost.

Implementation Results

ROI Period	18 months
Key Metrics	Improved productivity, Minimized staffing by reducing control/management points
Client Feedback	Because machining cycle time was short, continuous operation was required; by deploying Seojeong’s solution, we increased production speed and were able to perform 100% inspection, which also improved product quality.

※ The content provided by Marosol is protected under U.S. and Canadian copyright and intellectual property laws. Unauthorized reproduction, distribution, or use of this content is strictly prohibited.

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The content provided by Marosol is protected under U.S. and Canadian copyright and intellectual property laws. Unauthorized reproduction, distribution, or use of this content is strictly prohibited.

※ The content provided by Marosol is protected under U.S. and Canadian copyright and intellectual property laws. Unauthorized reproduction, distribution, or use of this content is strictly prohibited.

Process Overview

Components

Workflow

Key Features

Implementation Results

Nut-Insert Injection Molding and Inspection Using a Yushin Take-Out Robot

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