How does the automatic glue injection robot high-speed toothbrush hair transplanting machine achieve complex spiral bristle designs?
Publish Time: 2025-08-25
With modern oral care products increasingly pursuing functionality and aesthetic design, toothbrushes are no longer simply cleaning tools. Brush head designs are becoming increasingly diverse, particularly with complex bristle structures such as spirals, waves, crosses, and high-low tufts. These structures have become crucial for improving cleaning efficiency, massaging gums, and reducing tooth enamel wear. However, these complex bristle arrangements place extremely high demands on production processes. Traditional manual bristle transplantation cannot meet the required precision, efficiency, and consistency. The automatic glue injection robot high-speed toothbrush hair transplanting machine is now perfectly addressing this challenge.1. High-Precision Motion Control System: Achieving Millisecond-Level Collaborative OperationThe key to complex bristle design lies in precise control of bristle position, angle, density, and layering. The automatic bristle transplanting machine utilizes a multi-axis servo system (e.g., X/Y/Z axes + rotary axis), combined with high-resolution encoders and precision guides, to ensure that the bristle needles maintain a positioning accuracy of ±0.02mm even at high speeds. Taking spiral bristle placement as an example, the system uses a pre-set CAD path model to decompose the spiral trajectory into a continuous matrix of coordinate points. The bristle heads are then precisely inserted into the brush plate holes in sequence, forming a spiral arrangement from the inside out or from the outside in. The entire process is controlled in real time by a PLC or industrial PC, capable of completing hundreds of bristle placement operations per minute, achieving high speed and unwavering accuracy.2. Intelligent Programming and Graphical Interface: One-Click Import of Complex Bristle Placement PlansModern high-speed bristle placement machines are equipped with a graphical human-machine interface (HMI) and dedicated software. Operators simply import a brush head design or select a preset template (such as "spiral," "cross," or "gradient high-low bristle"), and the system automatically generates the bristle placement path and process parameters. More advanced models support offline programming and simulation, simulating the entire bristle placement process on a computer. This allows for proactive identification of interference, overlap, or missed placement risks, ensuring successful first-time commissioning of complex bristle placement plans. Bristle placement programs for different toothbrush models can be stored and recalled, enabling rapid changeovers and adapting to flexible production of multiple varieties.3. Automatic Glue Injection System: Ensures Every Bristle Bunch Stays Firm and Resists FallingComplex bristle structures require extremely uniform and stable glue filling. The automatic glue injection robot utilizes a precision screw pump or time-pressure valve control system to achieve microliter (μL)-level precise glue volume control. Whether using hot melt or UV-curable glue, the system automatically adjusts the glue injection volume and position based on the brush head size and bristle density. In spiral bristle fabrics, the glue injection path must match the bristle tuft distribution to prevent glue overflow from clogging adjacent holes or causing a shift in the center of gravity. The robot uses multi-point scanning and closed-loop feedback to ensure even coverage of the bristle roots. After high-temperature curing, a high-strength bond is formed, ensuring that the bristles remain loose and fall apart over long-term use.4. Multi-station Collaboration and High-Speed Interchangeability: Improving Efficiency in Complex Bristle FabricsTo handle the multiple bristle planting and glue injection processes required for complex bristle fabrics, high-end bristle planting machines typically utilize dual or multi-station designs. For example, one station can perform bristle planting while another performs glue injection and curing simultaneously, significantly reducing cycle time. Some machines are also equipped with automatic needle changing and cleaning systems to prevent cross-contamination between different bristle types or colors, ensuring clear layers and distinct colors on the spiral bristles. The entire process, from loading, positioning, bristle planting, glue injection, to unloading, is fully automated, achieving a high-efficiency output of over 200 brushes per minute.5. Visual Inspection and Closed-Loop Quality: Ensuring Every Brush Meets StandardsTo ensure the quality of complex bristle patterns, the equipment integrates an industrial vision system. After bristle planting, real-time image analysis is performed on the brush head to detect bristle tuft position, height consistency, missing bristles, and crooked bristles. If anomalies are detected, the system automatically issues an alarm or rejects defective products, forming a closed-loop quality control system. For spiral structures, the vision system also verifies rotation angle and symmetry, ensuring the precise reproduction of the bristle design on every toothbrush, meeting the stringent product consistency requirements of high-end brands.The automatic glue injection robot high-speed toothbrush hair transplanting machine utilizes five core technologies: high-precision control, intelligent programming, precise glue injection, multi-station collaboration, and visual inspection. It successfully automates the production of complex bristle designs, including spiral, cross, and wavy designs. This not only enhances the functionality and aesthetics of toothbrushes, but also significantly improves production efficiency and product consistency, driving oral care manufacturing towards intelligent and high-end manufacturing.
