Panel Saw Stop-Surface Suction for Safe Workpiece Positioning
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Solution Overview
Problem
The existing sawing devices pose a risk of user injury from gripping devices when positioning small-format workpieces, as users must manually hold them until gripped, risking accidental contact and pinching.
Innovation Solution
Incorporating suction openings aligned with stop surfaces that apply negative pressure to fix workpieces in place, allowing users to release them before gripping, and a protective wall to cover the loading area during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users manually hold workpieces on stop surfaces until gripped by gripping devices, then workpieces can be positioned, but users risk pinching their fingers on the gripping devices
Solution Approach 1:
A suction device is introduced as an intermediary between the workpiece and the stop surface. The suction device creates a negative pressure field that acts as a mediator to hold the workpiece in position, eliminating the need for manual holding and removing users from the danger zone of the gripping devices.
Solution Approach 2:
The manual mechanical holding action is replaced by a pneumatic suction system. Instead of users physically supporting the workpieces, the suction device uses negative pressure to secure the workpieces to the stop surface, substituting human mechanical action with an automated pneumatic mechanism.
2Manufacturing precision
If workpieces are manually positioned on stop surfaces, then positioning can be achieved, but workpieces may unintentionally slip before being gripped
Solution Approach 1:
The suction device serves as a reliable intermediary that securely connects the workpiece to the stop surface through negative pressure. This ensures the workpiece remains firmly in its positioned location without slipping, providing both positioning accuracy and stability throughout the operation.
3Ease of operation
If an air cushion is formed on the workpiece support surface to ease workpiece placement, then workpiece handling is simplified, but workpieces may still move unintentionally
Solution Approach 1:
The suction device acts as a secondary intermediary that complements the air cushion system. While the air cushion facilitates easy placement by reducing friction, the suction device provides positive securing through negative pressure, ensuring workpieces do not move unintentionally after placement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents unintentional movement and reduces the risk of user injury by securing workpieces with negative pressure, enabling safe operation and efficient positioning without manual holding.
Implementation Method 1
at least one suction opening (84) which can be subjected to negative pressure and with which at least one narrow side of the workpiece can be fixed to at least one stop surface (80), in that a suction force is exerted on the narrow side in order to prevent unintentional movement of the workpiece
Data Source
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AI summary
The invention relates to a sawing device (10) for dividing panel-shaped workpieces. The sawing device (10) comprises a horizontal workpiece support surface (16) with a saw gap (18) and a saw unit (38) that can be moved along the saw gap (18) and a feed device (44) that can be moved back and forth in a feed direction (46). and has a plurality of gripping devices (51-55) and a pressure bar (32) for pressing the workpieces against the workpiece support surface (16). In addition, the sawing device (10) comprises at least one first stop surface (80) which is arranged on a machine frame and against which the workpieces can be placed with a first narrow side (106) aligned perpendicularly to the sawing line (20), and at least one second stop surface (88 ), which is arranged on the feed device (44) and to which the workpieces can be placed with a second narrow side (108) aligned perpendicularly to the feed direction (46). In order to reduce the risk of the user being injured by the gripping devices (51-55), it is proposed that the sawing device (10) have at least one suction opening (84) which can be subjected to negative pressure and aligned with the at least one first stop surface (80). is designed to fix the workpieces on the at least one first stop surface (80) and/or that the sawing device (10) has at least one suction opening (96) which can be subjected to negative pressure and is aligned with the at least one second stop surface (88) for Fixing the workpieces on the at least one second stop surface (88).