Spray Head Cleaning Device with Thermal Decomposition
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Solution Overview
Problem
Current cleaning methods for dispensing needles or nozzles, such as ultrasonic cleaning and liquid injection, are inefficient for thermosetting adhesives with small pore sizes and require skilled operation, especially when dealing with residual glue.
Innovation Solution
A cleaning device with a clamping mechanism to secure the spray head, a heating mechanism to decompose thermosetting glue, and an adjustable cleaning mechanism for liquid injection, dredging, and inspection, allowing for efficient and versatile cleaning operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ultrasonic cleaning is used, then cleaning capability is improved, but it is not practical for thermosetting adhesives with small pore size that are blocked after curing
Solution Approach 1:
The patent applies thermal energy to change the physical state of cured thermosetting adhesive from solid to liquid or vapor phase, enabling removal through phase transition. This resolves the limitation of ultrasonic cleaning by using a different physical mechanism (thermal decomposition/vaporization) that works on cured adhesives regardless of pore size
Solution Approach 2:
The patent replaces the mechanical ultrasonic vibration system with a thermal field system. Instead of using mechanical energy to dislodge adhesive, the system uses heating elements to thermally decompose or vaporize the adhesive, fundamentally changing the cleaning mechanism to one that is effective for thermosetting materials
2Reliability
If liquid injection cleaning is used, then cleaning effectiveness is improved, but operation time is extended and proficiency requirements increase
Solution Approach 1:
The patent combines heating function and cleaning function into a single integrated system. The heating mechanism softens or vaporizes adhesive while the injection mechanism simultaneously delivers cleaning solvent, creating a synergistic effect that achieves complete cleaning faster than sequential operations
Solution Approach 2:
The heating mechanism performs preliminary action by pre-heating and softening the cured adhesive before the cleaning solvent is injected. This preliminary thermal treatment reduces the viscosity and adhesion strength of the contaminant, making the subsequent liquid injection more effective and faster
3Adaptability or versatility
If multiple cleaning functions are integrated, then versatility is improved, but device complexity increases
Solution Approach 1:
The patent designs a cleaning device that performs multiple functions (heating, liquid injection, dredging, inspection) through a unified structure. The spray head serves as both the injection point for cleaning solvent and the target for heating, while the rotating mechanism enables multiple operations from a single device configuration
Solution Approach 2:
The patent implements a nested structure where the dredging wire is contained within the spray head assembly, and the inspection camera is integrated into the same housing. This nested arrangement allows multiple cleaning and inspection functions to coexist in a compact configuration without significant increase in overall device complexity
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 device effectively decomposes and removes thermosetting glue, improving cleaning efficiency and convenience by integrating heating, liquid injection, and inspection capabilities, addressing the limitations of existing methods.
Implementation Method 1
The heating mechanism 30 is used to heat the spray head 200 clamped by the clamping mechanism 20 to decompose or carbonize glue in the spray head 200
Data Source
AI summary
A cleaning device includes a supporting mechanism, a clamping mechanism arranged on the supporting mechanism and used to clamp a spray head, a heating mechanism, an adjusting mechanism, and a cleaning mechanism. The heating mechanism, the adjusting mechanism, and the cleaning mechanism are arranged on the supporting mechanism. The heating mechanism is used to heat the spray head clamped by the clamping mechanism. The cleaning mechanism is used to inject cleaning liquid into the spray head, dredge the spray head, and detect the spray head. The adjusting mechanism is used to rotate and adjust a position of the cleaning mechanism to complete different tasks on the spray head.