Powered Caulking Apparatus Motor-Driven Piston Control
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Solution Overview
Problem
Traditional caulking devices are imprecise and result in uneven and uncontrollable flow of caulk, leading to inefficient work and unnecessary material loss due to their mechanical limitations.
Innovation Solution
A powered caulking apparatus comprising a power source, motor, gear reduction means, drive gear, roller guides, extension tape, and a caulk piston, with sensors and a control circuit to manage the extrusion process, ensuring controlled and precise dispensing of caulk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a traditional manual caulk gun with plunger is used, then the device is simple in structure and easy to operate, but the caulk flow is uneven and uncontrollable resulting in material loss
Solution Approach 1:
The patent replaces the traditional manual plunger mechanism with an automated motor-driven system. The motor (210) drives a lead screw (220) that precisely controls the movement of the caulk piston (122), eliminating the imprecise manual operation of traditional guns. This substitution of mechanical control with motorized control achieves uniform and controllable caulk flow while maintaining operational simplicity through automated control.
Solution Approach 2:
The patent incorporates sensors (202, 204) that detect the position of the caulk tube (3) and provide feedback to the control circuit (206). The control circuit uses this feedback to automatically adjust the motor operation, ensuring precise control of the caulk dispensing process. This closed-loop feedback system maintains manufacturing precision while managing the complexity of the automated system.
2Loss of substance
If a traditional caulk gun is used, then the device is easy to manufacture and operate, but it results in unnecessary loss of caulk material
Solution Approach 1:
The manual plunger mechanism is replaced with a motor-driven lead screw system that provides precise, controlled movement of the caulk piston. This automated system dispenses caulk at a controlled rate, preventing the uneven flow and material waste associated with manual operation. The system can be easily operated through simple trigger activation that controls the motor.
Solution Approach 2:
The control circuit (206) automatically manages the motor operation based on sensor feedback, eliminating the need for manual adjustment or complex user intervention. The system self-regulates the caulk dispensing process, maintaining material efficiency while preserving ease of operation through automated control.
3Manufacturing precision
If a powered caulking apparatus with motor and control circuit is used, then precise and controlled caulk dispensing is achieved, but the device complexity increases
Solution Approach 1:
The traditional mechanical plunger system is replaced with an integrated motor-driven system featuring a lead screw mechanism. This substitution provides precise control over piston movement and caulk dispensing. The complexity is managed by integrating the motor, lead screw, and control circuit into a coordinated system that achieves precision through automated control rather than complex mechanical linkages.
Solution Approach 2:
The control circuit (206) performs multiple functions: it receives sensor feedback, controls motor operation, manages the dispensing cycle, and prevents excessive extrusion by reversing motor rotation. This multi-functional control system consolidates what would otherwise require separate mechanisms, achieving precise dispensing control while managing overall device complexity through functional integration.
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 powered caulking apparatus provides precise and controlled caulk dispensing, reducing material waste and improving efficiency by using a combination of mechanical and sensor-based systems to manage the extrusion process.
Implementation Method 1
a motor, a gear reduction means
Implementation Method 2
a gear reduction means, a drive gear
Implementation Method 3
The plurality of layers allow for the extension tape to be able to bend around the roller
Implementation Method 4
Extension tape slots in the tape allow the drive gear to engage and actuate the tape
Implementation Method 5
A front sensor and a rear sensor may be provided for determining the end locations of the extension tape. When the front sensor a sensor magnet (that is disposed on an end of the extension tape), the sensor may determine that the extension tape is fully retracted
Data Source
AI summary
A powered caulking apparatus includes a power source, a motor, a drive gear, an extension tape, and a top roller guide and bottom roller guide. The tape includes extension tape slots that receive gear teeth of the drive gear such that rotational motion of the drive gear translates into linear motion of the extension tape. The extension tape preferably comprises a radius, and the top roller guide and bottom roller guide preferably conform to the radius of the tape. The top roller guide and bottom roller guide may form an interference for the tape while still allowing linear motion of the tape. The apparatus may extend the tape to cause the tape to exert a force on a caulk tube to extrude caulk, and the tape may thereafter reverse linear motion of the tape to remove the force of the apparatus on the caulk tube.