Multi-Joint Robot Marker-Based Path Setting
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Solution Overview
Problem
Existing multi-joint robots for injection molding require complex coding to set movement paths, leading to increased non-operational time and costs due to the need for skilled engineers for frequent mold changes.
Innovation Solution
A multi-joint robot equipped with a dedicated controller, user interface, and markers photographed by a camera to capture movement information, allowing low-skilled workers to easily set and modify movement paths without coding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a moving path is set by coding in existing multi-joint robots, then the robot can perform automated injection molding tasks, but setting the moving path becomes a high-level task requiring skilled engineers, increasing non-operating time and costs
Solution Approach 1:
The robot system performs self-learning by automatically capturing marker positions through the camera and storing them in the controller. This self-service mechanism eliminates the need for skilled engineers to manually code moving paths, allowing low-skilled workers to operate the system while reducing non-operating time and costs associated with engineer visits during frequent mold changes
Solution Approach 2:
The patent replaces the traditional mechanical coding system with an optical detection system. Instead of manually programming coordinates, the camera photographs markers attached to work components, and the controller automatically calculates positions from these images. This substitution of mechanical programming with optical recognition simplifies operation and enables self-learning functionality
2Manufacturing precision
If skilled engineers are required to set moving paths for each mold change, then accurate path configuration is achieved, but non-operational time increases and costs increase due to frequent engineer visits
Solution Approach 1:
Markers are pre-attached to work components before operation begins. When the camera captures images of these markers, the controller can immediately calculate precise positions without requiring manual measurement or programming. This preliminary placement of markers enables rapid, accurate path setting that maintains manufacturing precision while eliminating the time-consuming process of engineer-led path configuration during mold changes
3Reliability
If complex coding is used to set moving paths, then precise control is achieved, but the system becomes difficult to operate and requires high-skilled personnel
Solution Approach 1:
Markers serve as intermediaries between the physical work components and the digital control system. Instead of directly programming complex motion paths, the system simply captures images of these visual markers through the camera. The controller then automatically processes these images to determine precise positions and generate control commands. This intermediary approach maintains reliable motion control while dramatically simplifying the operator's task from complex coding to simple marker placement and image capture
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and cost-effective operation by reducing the need for skilled engineers, minimizing non-operational time, and improving process efficiency in injection molding processes.
Implementation Method 1
a camera part (340) connected to the controller (300) and configured to photograph movement of the marker (330)
Data Source
AI summary
Provided is a multi-joint robot which is capable of performing motion control and includes a part for easily setting a moving path, an angle, and the like of a take-out device in a process of taking out an injection-molded object. To this end, the present disclosure includes a molding part configured to mold an object, a multi-joint robot configured to move close to the molding part and take out the object, a first controller connected to the above work components and configured to control driving of the work components, a marker connected to the first controller and provided on each of joints of the multi-joint robot, and a camera part configured to photograph movement of the marker, and transmit movement information of the multi-joint robot according to the movement of the marker to the first controller, and an overrun detector is provided on at least one of the joints of the multi-joint robot to detect an overrun operation exceeding an operation range of a joint movement and transmit a warning signal about the overrun operation to the first controller. According to the present disclosure, even a low-skilled worker can easily set access and work of a worker at an injection molding site without performing coding, thus reducing a difficulty level of work and maximizing process efficiency, control whether to perform injection according to whether a door is open or not, thereby securing safety, and control quality and a take-out environment using environmental information received by the molding part.