Automatic Nail Feed Structure for Smooth Collating Strip Transport
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Solution Overview
Problem
Conventional automatic nail delivery devices experience issues with the smooth transportation of collating strips due to relative movement between the carrier seat and inner box, leading to the collating strip being tugged and shifted, affecting the operation.
Innovation Solution
The automatic nail delivery device incorporates a guide rod, base, push pulley, drive mechanism, and push spring, which ensure synchronized movement of the collating strip through a drive belt part, preventing pulling during relative movement of the casing and base.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the carrier seat and inner box move relative to each other during operation, then the electric drill can drive out nails from the collating strip, but the collating strip holder moves relative to the inner box causing the collating strip to be tugged and shifted
Solution Approach 1:
The device is divided into a fixed base and a movable inner box. The collating strip holder is attached to the fixed base while the inner box containing the pushing mechanism moves independently. This segmentation allows the nail delivery function to work while preventing the collating strip from being tugged, as the holder remains stationary during the pushing operation.
Solution Approach 2:
The collating strip holder is extracted from the movable inner box and fixed to the base separately. This extraction ensures that the holder does not move with the inner box during the pushing cycle, eliminating the relative movement that causes the collating strip to be tugged and shifted.
2Ease of operation
If the collating strip is mounted through both the collating strip holder and the inner box, then nails can be delivered, but the relative movement between holder and inner box causes tugging and shifting of the strip
Solution Approach 1:
The collating strip holder is extracted from the movable inner box and fixed to the base. This allows the strip to be mounted through the holder only, while the inner box moves independently with the pushing mechanism, simplifying the structural configuration and eliminating tugging issues.
Solution Approach 2:
The fixed collating strip holder acts as an intermediary between the stationary base and the movable inner box. It provides a stable mounting point for the collating strip while allowing the inner box to move freely for the pushing operation, resolving the conflict between automatic pushing and structural simplicity.
3Productivity
If the collating strip holder is mounted on the carrier seat that moves relative to the inner box, then nail delivery is enabled, but the collating strip transportation becomes unsmooth due to relative movement
Solution Approach 1:
The device is segmented into a fixed base with the collating strip holder and a movable inner box with the pushing mechanism. This segmentation allows the nail delivery function to operate at high speed while the collating strip feeds smoothly through the stationary holder, resolving the contradiction between delivery speed and feed smoothness.
Solution Approach 2:
The collating strip holder is extracted from the movable carrier seat/inner box assembly and fixed to the base. This extraction ensures that the holder remains stationary during high-speed operation, allowing smooth collating strip transportation while maintaining fast nail delivery capability.
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 synchronized movement of the collating strip through the drive belt part addresses the transportation issues, ensuring smooth operation and reducing the likelihood of the strip being pulled, enhancing the overall efficiency and convenience of nail delivery.
Implementation Method 1
a push spring, which pushes the base from the nail position back to the ready position
Implementation Method 2
the reset spring drives the drive arm back when the base moves from the nail position to the ready position
Implementation Method 3
The guide rod is detachably mounted at a front end of the electric drill and is capable of extending into the connection end of the casing. The guide rod extends into the base, and the base is capable of moving from a ready position toward the connection end of the casing to a nail position
Implementation Method 4
The ratchet structure is mounted in the base and is connected to the push pulley, and the ratchet structure is capable of limiting the push pulley to rotate unidirectionally
Data Source
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AI summary
An automatic nail delivery device is mounted on an electric drill (30) and is provided with a collating strip (40). The automatic nail delivery device has a casing (10), a base (12) being movable relative to the casing (10), a guide rod (11) mounted at the front of the electric drill (30), a push pulley (13) mounted in the base (12) and driving the collating strip (40), a drive mechanism (14), and a push spring (15) mounted between the base (12) and the casing (10) and being capable of resetting the base (12). The collating strip (40) can be mounted through the drive belt part (122) at the bottom of the base (12) and passed through the push pulley (13) to the nail delivery port (121) of the base (12).