Multi-Axis Clamping Device for Bag Filling Systems
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Solution Overview
Problem
Conventional material bag filling systems require manual and labor-intensive clamping, and automatic grippers for bag opening are unreliable due to unstable vacuum suction, leading to high failure rates and increased costs.
Innovation Solution
A clamping and conveying device with X-axis, Y-axis, and Z-axis rails, rotating arms, and grippers that allow for precise control and stable clamping of material bags, using motors and screw rods for precise movement and synchronization, along with a heat sealer for sealing, to automate the filling and packaging process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual clamping is used, then the device complexity is low, but the productivity is low and labor costs are high
Solution Approach 1:
The clamping device is divided into multiple independent modules: X-axis rails for horizontal movement, Z-axis rails for vertical movement, Y-axis rails for positioning, rotating arms for orientation, and grippers for clamping. Each module operates independently along its designated axis, enabling automated multi-dimensional clamping without requiring a completely complex integrated system.
Solution Approach 2:
The multi-axis rail system serves multiple functions: X-axis rails provide both horizontal positioning and support for Z-axis movement, Z-axis rails provide vertical positioning and support for Y-axis movement, and Y-axis rails provide lateral positioning. This multi-functional design reduces the need for separate dedicated components for each function.
2Reliability
If automatic gripper with vacuum suction is used, then the ease of operation is improved, but the reliability is low due to unstable vacuum suction
Solution Approach 1:
The patent replaces the unreliable vacuum suction system with a mechanical clamping system. The grippers use direct mechanical contact and force applied through the rotating arms and rail system to clamp the filling tube portion, eliminating dependence on vacuum suction stability while maintaining ease of automated operation.
Solution Approach 2:
The mechanical clamping system is self-regulating through the rigid rail-guided structure. Once the grippers are positioned and activated, the multi-axis rail system automatically maintains stable clamping force without requiring continuous control adjustments or monitoring of suction pressure, achieving reliable operation through inherent mechanical stability.
3Manufacturing precision
If precise positioning is implemented, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The patent achieves precise positioning by adding spatial dimensions rather than complicating single-axis control. The X-axis, Z-axis, and Y-axis rails operate in three different spatial dimensions, allowing independent precision control along each axis without interfering with the others. This dimensional separation simplifies the control system compared to attempting high-precision control in a single complex axis.
Data Source
AI summary
A clamping and conveying device for a material bag filling system is provided. Through displacement of X-axis rails and a Z-axis rail and rotation of rotating arms, grippers can be rotated and inserted into a filling tube portion of a material bag. Cantilevers can be moved away from each other for the filling tube portion to be stretched. Through the rotation and return of the rotating arms, the displacement of the cantilevers and the clamping action of the grippers, the filling tube portion is clamped stably. The cantilevers are displaced to the bottom of the material filling device by the Z-axis rail and the X-axis rails. The filling tube of the material filling device is displaced to enter the material bag for blowing air and filling the material. Through a conveyor belt, the material bag with the filled material is conveyed to a sealing device for sealing.