Cardboard Joining Machine With Reversible Feed for Joint Inspection
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Solution Overview
Problem
Existing machines for joining sheet materials, such as cardboard, require time-consuming and tedious manual inspection of joints, leading to operator fatigue and inefficiencies in the production process.
Innovation Solution
A machine with a control unit and drive units that allow two-way rotation, enabling sheet materials to be moved between storage areas and incorporating activatable/deactivatable joining groups, allowing for visual inspection from a single storage area without operator movement, and featuring a test mode for quality control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operator performs visual inspection in the second storage area, then the join quality can be verified, but the operator must move between storage areas which is time-consuming and tedious
Solution Approach 1:
Instead of moving sheet materials from the first storage area to the second storage area for inspection, the invention inverts the approach by returning inspected sheet materials from the second storage area back to the first storage area. This allows the operator to remain at the control panel in the first storage area and inspect joins without physically moving between storage areas, thereby reducing operator fatigue and time consumption while maintaining quality verification.
2Productivity
If the joining groups remain active during sheet material return, then joining operations can be performed, but already joined sheet materials would undergo further joining operations which is unsafe
Solution Approach 1:
The joining groups are designed to be dynamically switchable between active and inactive states. When sheet materials need to be returned from the second storage area to the first storage area for inspection or correction, the joining groups are deactivated to prevent any further joining operations. Once the return process is complete and no more sheet materials need inspection, the joining groups are reactivated to resume production. This dynamic control ensures that already joined sheet materials are not subjected to harmful repeated joining operations while maintaining productivity when needed.
3Productivity
If the drive units rotate in a single direction only, then the production flow is unidirectional, but sheet materials cannot be returned from the second storage area to the first storage area for inspection
Solution Approach 1:
The drive units are equipped with two-way rotation capability, allowing them to dynamically change rotation direction based on operational needs. During normal production, the drive units rotate in the forward direction to move sheet materials from the first storage area through the joining station to the second storage area, maintaining high production rate. When inspection or correction is required, the drive units can reverse direction to return sheet materials from the second storage area back to the first storage area. This dynamic bidirectional capability provides versatility while preserving production efficiency.
Solution Approach 2:
The drive units are designed with multi-functionality to perform both forward movement for production and reverse movement for inspection/correction operations. This universal design allows the same drive units to serve multiple purposes: transporting sheet materials during production, returning inspected sheet materials, and potentially repositioning materials as needed. This eliminates the need for separate drive mechanisms for different operational modes, maintaining productivity while adding adaptability.
Data Source
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AI summary
Machine (1) for joining sheet material (20), comprising a sheet-material joining station (2) arranged between two sheet-material storage regions (3, 4), and a control unit (5), the joining station (2) forming a guide path (6) for sheet material (20) that develops longitudinally from one of the storage regions (3, 4) to the other storage region, the guide path (6) comprising two edges (7) and, arranged between the edges (7), at least one driver (8) and a unit (9) for joining sheet material (20), each joining unit (9) comprising at least one gluing and/or stapling device (10). Each driver (8) comprises at least one drive member (81) and each joining unit (9) is an activatable/deactivatable unit, each joining unit (9) being in the inactive state when the at least one drive member (81) is in the driven state in one of the directions of rotation thereof.