Transport Device Pinching Mechanism with Overlapping Guide Unit
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Solution Overview
Problem
In transport devices with rotating members and circulating members, displacement of the guide unit from the pinching members can lead to failures in pinching the transport object, such as paper sheets, resulting in incomplete or improper pinching.
Innovation Solution
A transport device design where the guide unit is positioned to overlap the pinching members in the separated state, ensuring the transport object is correctly guided into the pinching area, with the pinching members changing from a separated to a closely positioned state to securely pinch the object, and the attachment links meshing with sprockets to stabilize the gripper's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the guide unit is displaced from the pinching members in the separated state, then the structure allows more flexibility in positioning, but the pinching reliability deteriorates due to position variations during the pinching process
Solution Approach 1:
The guide unit is positioned to overlap the pinching members in the separated state before the pinching action occurs. This preliminary positioning ensures that the transport object is correctly guided into the pinching area in advance, preventing position variations during the actual pinching process and maintaining pinching reliability.
Solution Approach 2:
The guide unit acts as an intermediary between the transport object and the pinching members. By positioning the guide unit to overlap the pinching members in the separated state, it mediates the transport object's path, ensuring accurate positioning before the pinching members close, thus resolving the contradiction between positioning flexibility and pinching reliability.
2Manufacturing precision
If the pinching members are positioned to overlap in the separated state, then the pinching precision is improved, but the device complexity increases due to additional positioning requirements
Solution Approach 1:
The guide unit and pinching members are merged in their positional relationship when separated, with the guide unit overlapping the pinching members. This merging of positional information simplifies the overall positioning structure by eliminating the need for separate complex positioning mechanisms, while still achieving high pinching precision.
Solution Approach 2:
The guide unit serves multiple functions: it guides the transport object into the pinching area and simultaneously provides positional reference for the pinching members by overlapping them in the separated state. This multi-functionality reduces the need for additional positioning components, maintaining simplicity while improving pinching precision.
Data Source
AI summary
A transport device includes a rotating member that rotates; a circulating member that is loop-shaped and wrapped around the rotating member, the circulating member being circulated by rotation of the rotating member; a pair of pinching members attached to the circulating member and circulated together with the circulating member, the pair of pinching members changing from a separated state, in which the pair of pinching members are separated from each other, to a closely positioned state to pinch a transport object that has entered a space between the pair of pinching members in the separated state; and a guide unit positioned to overlap the pair of pinching members in the separated state when viewed in one direction along a rotational axis direction of the rotating member, the guide unit guiding the transport object into the space between the pair of pinching members in the separated state.