Alternating Solder Strip Traction for Continuous Cutting
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Solution Overview
Problem
Conventional strap pulling devices have low efficiency due to the need for sequential clamping and cutting operations, resulting in waiting times for the cutting mechanism and the pulling mechanism.
Innovation Solution
A strap pulling device with two strap pulling mechanisms that alternately clamp the strap upstream of the cutter mechanism and pull it to a transfer position downstream of the cutter mechanism, allowing simultaneous clamping and cutting operations without waiting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single strap pulling mechanism is used with sequential clamping and cutting operations, then the device structure is simple, but the pulling efficiency is low due to waiting times
Solution Approach 1:
The single strap pulling mechanism is segmented into two independent strap pulling mechanisms that operate alternately. Each mechanism handles a portion of the pulling operation, allowing continuous operation without waiting for cutting to complete, thus resolving the contradiction between simplicity and efficiency by dividing the system into functional segments
Solution Approach 2:
The two strap pulling mechanisms are configured to operate in alternating sequence, ensuring that while one mechanism is pulling, the other is positioning or preparing. This continuous alternation eliminates idle waiting time and maintains continuous useful action, improving productivity while keeping the overall system structure relatively simple
2Productivity
If the cutter mechanism waits for the strap clamping mechanism to clamp the strap before cutting, then cutting precision is ensured, but the pulling efficiency decreases due to waiting time
Solution Approach 1:
The first strap pulling mechanism performs preliminary clamping and positioning of the strap before the cutting operation. This preliminary action prepares the strap in advance, allowing the cutter mechanism to immediately cut without waiting for clamping to complete, thereby reducing waiting time while ensuring cutting precision
Solution Approach 2:
The two strap pulling mechanisms operate in periodic alternating sequence, with each mechanism performing clamping, positioning, and releasing actions in a rhythmic cycle. This periodic operation ensures that cutting always occurs at the optimal moment when the strap is properly positioned, eliminating unnecessary waiting time while maintaining precision
3Productivity
If the pulling mechanism waits for the cutter mechanism to cut the strap before pulling the next strap, then operational safety is maintained, but the pulling efficiency is reduced
Solution Approach 1:
The pulling operation is segmented into two independent mechanisms that operate in parallel sequences. The first mechanism handles pulling while the second mechanism handles positioning and preparation for the next cycle. This segmentation allows simultaneous execution of pulling and preparation operations, improving efficiency while maintaining safety through independent controlled operations
Solution Approach 2:
The second strap pulling mechanism acts as an intermediary between the cutting operation and the first pulling mechanism. It prepares the strap and positioning in advance, mediating the transition between cutting and pulling operations, thereby eliminating waiting time while maintaining operational safety through coordinated intermediate actions
Data Source
Figure 1~3
Figure 4~5
AI summary
The disclosure provides a strap pulling device and a pulling method, the strap pulling device comprises a cutter mechanism, a first strap pulling mechanism and a second strap pulling mechanism. The first strap pulling mechanism and the second strap pulling mechanism are configured to alternately clamp a strap at a pulling position located upstream of a cutting position and pull the strap to a transfer position located downstream the cutting position, when the first strap pulling mechanism pulls the clamped strap to the transfer position, the second strap pulling mechanism clamps the strap at the pulling position, the cutter mechanism cuts the strap at the cutting position to acquire a strap segment, and when the second strap pulling mechanism pulls the clamped strap to the transfer position, the first strap pulling mechanism clamps the strap at the pulling position, the cutter mechanism cuts the strap at the cutting position to acquire a strap segment. Compared with a conventional strap pulling device, the strap pulling device provided by the present disclosure greatly improves the pulling efficiency of the strap.