Independently Rotating Carrier Arms Timber Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing transfer apparatuses for sawn timbers often cause damage and disorder during transfer due to uneven timber lengths, leading to compression stress and displacement of timbers, requiring manual reorganization.
Innovation Solution
The transfer apparatus features independently rotatable carrier arms with measuring sensors to detect timber ends, allowing controlled rotation and preventing unnecessary movement of timbers, ensuring they remain in order during transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the carrier arms are rotated to have the second rough surface facing upwards to support sawn timbers, then the timbers can be carried from the feed conveyor, but the carrier arm may dislodge timbers with uneven lengths by encountering their ends during rotation
Solution Approach 1:
The patent applies dynamics by making the carrier arms independently rotatable rather than rotating them all simultaneously. Each carrier arm can be rotated independently based on the position of timbers it encounters, allowing dynamic adaptation to uneven timber lengths while maintaining stable support for timbers of equal length
Solution Approach 2:
The patent segments the carrier arms into independently controllable units. Instead of treating all carrier arms as a single rotating assembly, each carrier arm can be rotated independently based on local timber conditions, preventing dislodging of timbers while maintaining overall transfer functionality
2Productivity
If the transfer fork moves sawn timbers from the first position to the second position, then transfer efficiency increases, but compression stress in timbers increases causing them to be flung and disordered
Solution Approach 1:
The patent applies dynamics by enabling independent rotation of carrier arms during the transfer process. When a carrier arm encounters the end of a timber, it can rotate independently to avoid compression, allowing continuous transfer operation without stopping for manual reorganization while preventing timber flinging
Solution Approach 2:
The patent applies preliminary anti-action by having carrier arms independently detect and respond to timber ends before compression stress can cause flinging. The independent rotation capability allows preemptive avoidance of harmful compression forces
3Device complexity
If all carrier arms are rotated simultaneously, then the structure is simpler, but timbers with uneven lengths cannot be handled properly causing disorder
Solution Approach 1:
The patent segments the rotating mechanism into independent units for each carrier arm. This segmentation allows the system to handle uneven timber lengths adaptively while maintaining reasonable structural complexity through modular independent rotation mechanisms
Solution Approach 2:
The patent changes the rotation parameter from simultaneous fixed rotation to independent variable rotation. Each carrier arm can rotate independently based on the specific timber conditions it encounters, providing adaptability to uneven lengths while maintaining overall system functionality
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a transfer apparatus for carrying sawn timbers or the like pieces. The transfer apparatus includes a transfer fork (1), comprising a set of side-by-side spaced-apart carrier arms (2; 21, 22,..., 26, 27) and means (4; 41, 42) for traversing the transfer fork in a longitudinal direction (C-C) of the carrier arms from a first position to a second position and back. The transfer fork enables carrying one or more side-by-side sawn timbers (T; TJ1) from a first position (D), from a feed conveyor (9) or the like, to a second position (E). The transfer fork's carrier arms (2; 21, 22,..., 26, 27) are rotatable in a plane transverse to the longitudinal direction (C-C) and comprise at least two substantially straight surfaces (21, 22), which are co-directional with the carrier arm and which in a lateral plane are at an angle (α) relative to each other, and of which surfaces the first one (21) is slick and the second one (22) is rough. According to the invention, at least some of the transfer fork's (1) carrier arms (2) are provided with separate designated rotating devices (8), such that a particular carrier arm (e.g. 25) is rotatable independently of the other carrier arms (2; 21, 2, 23, 24; 26; 27) rotatable in a plane transverse relative to the longitudinal direction.