Applying instant adhesive lines to table tennis rackets improves uniform adhesion and yield

Table tennis rackets are made up of multiple components, such as the wooden blade and rubber, and in order to achieve strong hitting power and control, these components must be bonded evenly and reliably. However, the conventional instant adhesive application process posed the following challenges:

• Difficult to control low viscosity liquids
  Instant adhesives have low viscosity and high fluidity, which can easily cause dripping and overflow when applied, resulting in poor appearance and defective products.
• Extrusion during the crimping process
  Because the amount of adhesive applied was not consistent, the adhesive did not spread evenly after pressing, causing overflow and air bubbles, which posed a risk of the rubber lifting or peeling off.
• Yield reduction due to quality variations
  The accuracy of application depended on the skill level of the operator, which resulted in inconsistent adhesive quality, increased inspection and rework man-hours, and reduced productivity.

High-precision diaphragm valveSV62and high-precision standard valve controllerSVC720VThe combination of these has resulted in the following benefits:

• Prevents dripping and has excellent drainage properties
  The SV62’s quick and reliable shut-off action prevents dripping even with instant adhesive, ensuring stable application of beautiful lines.
• Uniform adhesive layer formation
  After pressing, the adhesive spreads evenly, forming a uniform adhesive layer over the entire rubber surface. This prevents peeling or lifting, leading to stable performance when hitting the ball.
• Improved yield and production efficiency
  Improved repeatability of the application amount and position reduces inspection and rework, improves yield, and significantly improves stability in mass production processes.
• Standardization of work
  Regardless of the operator’s skill level, anyone can reproduce the same quality of dispensing, contributing to the standardization of the manufacturing process.

Diaphragm valve SV62

This high-precision valve uses an inert polymer resin that does not react with the fluid, allowing for even, drip-free application of low- to medium-viscosity fluids like instant adhesives. The SV62’s fast, reliable shutoff prevents dripping and ensures clean, smudge-free application even on the edge of the rubber. It also ensures even application on the round shape of a racket or a large application area.

• Achieves sharp, drip-free application of instant adhesives
• Forms a uniform adhesive layer after compression, preventing the rubber from peeling off
• Compact and lightweight design suitable for small and medium-sized workpieces such as table tennis rackets
• Maintains stable discharge even during long mass production processes
• Quick shutoff prevents dripping and maintains excellent liquid drainage

High-precision standard valve controller SVC720V

The SVC720V is a controller optimized specifically for the SV62, achieving the fine line application control and high repeatability required for table tennis racket manufacturing. Stable dispensing through digital control eliminates operator dependency and supports improved yield across the entire production line.

• Digitalization enables precise control
• Discharge response speed improved by 10% compared to conventional models
• Stable discharge with built-in precision regulator
• Reduces power consumption by approximately 10%