The pjg vacuum suction cup series achieves efficient and stable adsorption of curved workpieces through the deep integration of structural innovation and material science. Its core design principles cover flexible deformation mechanism, material mechanical properties, vacuum negative pressure regulation, sealing optimization strategy, multi-suction cup collaborative system, environmental adaptability enhancement and intelligent control technology.
The pjg vacuum suction cup series adopts a bellows lip design, and its thin-walled structure (wall thickness 0.5-1.2mm) allows the suction cup to deform freely in three dimensions when it contacts the curved surface. When the curvature of the workpiece surface changes, the bellows automatically fits the contour of the curved surface through axial compression and radial bending, avoiding the problem of partial suspension or overpressure caused by the inability of the rigid suction cup to deform. For example, on a spherical workpiece with a curvature radius of 50mm, the bellows structure can keep the suction cup in contact with the workpiece surface for more than 90%, significantly improving the adsorption stability.
The suction cup body is made of elastic materials such as silicone rubber or nitrile rubber, and its low elastic modulus (such as the 30-50 Shore A hardness of silicone rubber) gives the suction cup excellent deformation ability. When contacting a curved surface, the material fills the tiny bumps on the workpiece surface through local deformation to form a continuous sealing interface. Experimental data show that for a rough surface of Ra 3.2μm, the elastic material can increase the actual contact area by more than 40%, and the micro-pressure balance design of the sealing lip further reduces the leakage rate to below 0.1L/min (standard test conditions).
pjg vacuum suction cup series achieves real-time adjustment of vacuum degree through coordinated control with the vacuum generator. The system has built-in pressure sensors and proportional valves. When adsorbing curved workpieces, the vacuum degree can be automatically adjusted according to the change in contact area to avoid material deformation or adsorption failure caused by local overpressure. For example, on a cylindrical workpiece with a curvature radius of 100mm, the system can stabilize the vacuum degree within the range of -60kPa±5kPa to ensure uniform distribution of adsorption force.
The lip structure of the suction cup edge is the key to sealing performance. Its thin-wall design (thickness 0.5-1.5mm) generates an inward radial contraction force under the action of vacuum. When fitting the curved surface, the lip adjusts the contact pressure through slight deformation, making the pressure distribution in the sealing belt more uniform. This design not only enhances the sealing performance, but also reduces the risk of leakage caused by uneven workpiece surface. For example, on a composite curved workpiece with a curvature radius of 200mm, the lip structure can reduce the leakage rate to less than 0.05L/min.
For large-sized or complex curved workpieces, the pjg vacuum suction cup series adopts a multi-suction cup combination solution. Each suction cup independently adjusts the adsorption force to form a distributed support network. For example, on a cylindrical workpiece with a diameter of 300mm, when a combination of 6 suction cups is used, its anti-overturning moment can be increased by more than 3 times. This design not only improves the adsorption stability, but also extends the service life of the suction cup and reduces material fatigue caused by local overload.
The material selection of the pjg vacuum suction cup series takes into account both flexibility and durability. Silicone rubber and nitrile rubber not only have excellent elasticity, but also have oil resistance, temperature resistance, and aging resistance. For example, in high temperature (120°C) or low temperature (-40°C) environments, the suction cup can still maintain more than 80% of the initial adsorption force. In addition, the surface of the material has been specially treated to effectively resist the influence of pollutants such as oil and dust, ensuring long-term reliability.
The modern pjg vacuum suction cup series integrates intelligent sensors and adaptive algorithms to monitor the adsorption status in real time and dynamically adjust parameters. For example, when a sudden change in the curvature of the workpiece surface is detected, the system can automatically increase the local vacuum degree or adjust the suction cup angle to ensure that the adsorption force always meets the demand. This intelligent design not only improves the adsorption efficiency, but also reduces the difficulty of operation, making it perform well in automated production lines.
The pjg vacuum suction cup series achieves efficient and stable adsorption of curved workpieces through the synergy of flexible structure, elastic material, vacuum negative pressure technology, and sealing optimization. Its technical advantages include high fitting accuracy (surface contact error ≤ 0.2mm), strong load capacity (adsorption force per unit area ≥ 50N/cm²) and long durability (≥ 1 million cycles of adsorption), providing reliable guarantee for automated production.
