Spring-Loaded Driver for Flexible Tape Insertion
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Solution Overview
Problem
Existing assembly devices struggle to insert long flexible steel tapes into grooves of scale carriers without causing buckling, leading to measurement errors due to the pushing force required.
Innovation Solution
A device with a driver that can assume two positions, using spring means to apply a compressive force and then snap into the groove, allowing for easy insertion and automatic adjustment to prevent damage to the tape, enabling the insertion of tapes over large lengths without requiring precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a pushing force is applied to insert long flexible steel tapes into grooves, then the tapes can be inserted into the scale carrier, but the tapes buckle and cause measurement errors
Solution Approach 1:
Instead of pushing the tape from the front end, the driver engages with the tape and pulls it from the rear end through the groove. This reverse insertion method eliminates buckling caused by compressive pushing forces, as the tensile pulling force keeps the tape straight throughout the insertion process.
Solution Approach 2:
The driver acts as an intermediary component between the assembly device and the tape. It engages with the tape's recess and transfers the pulling force efficiently, enabling reliable tape insertion while maintaining tape integrity and preventing measurement errors.
2Manufacturing precision
If a driver is used to pull the tape, then the tape can be inserted without buckling, but the driver must be precisely positioned to engage with the recess
Solution Approach 1:
The spring means provides a variable compressive force that changes during the insertion process. Initially, the spring applies sufficient compression to ensure the driver engages with the tape recess. As insertion progresses and the tape becomes taut, the spring force automatically adjusts, maintaining engagement without requiring precise manual positioning.
Solution Approach 2:
The driver is designed with dynamic characteristics through the spring means, allowing it to adapt its position and force application during the insertion process. This dynamic behavior enables the driver to automatically engage with the recess and maintain proper positioning throughout tape insertion, eliminating the need for precise initial positioning by the operator.
3Strength
If a compressive force is applied by spring means, then the driver engages with the tape, but the tape surface may be damaged
Solution Approach 1:
The spring means provides a controlled compressive force that is optimized to be sufficient for driver engagement but limited to prevent tape surface damage. The spring's mechanical properties are selected to ensure the force remains within safe limits throughout the insertion process, achieving reliable engagement without harmful effects on the tape.
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
The solution allows for the reliable and error-minimized insertion of measuring and guide tapes into scale carriers, ensuring accurate position measurements by preventing buckling and allowing for easy removal of the device after insertion.
Implementation Method 1
spring means (104), which is designed to hold the driver (103) on the base body (101) in such a way that the driver (103), when the mounting device (100) is guided longitudinally on the scale carrier (1), into positions along the band (33) outside of the recess (332) with a compressive force F slides
Data Source
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Figure 5~6
AI summary
The assembly device (100) comprises a base body (101) with a guide (102) for longitudinally guiding the assembly device (100) on the scale carrier (1). A driver (103) is arranged on the base body (101) for engaging in a recess (332) of the strip (33) and for carrying the strip (33) along in the engaged state. The driver (103) is pre-tensioned on the base body (101) by means of a spring (104), so that when the assembly device (100) is longitudinally guided, the driver (103) automatically engages in the recess (332) of the strip (33) at the position of the recess, so that the strip (33) is carried along by the driver (103) during further longitudinal guidance.