Reciprocating Glue Dispenser Switch With Sliding Plate Flow Control
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Solution Overview
Problem
Traditional double liquid dispensing equipment faces issues with glue pulling, accumulation, and thickness inconsistency due to the pin-based mechanism for opening and closing the needle, affecting dispensing quality, especially in the precision packaging of electronic products with thinner display panels and smaller bezels.
Innovation Solution
A reciprocating glue dispenser dispensing switch featuring a switching device with a sliding wear-resistant plate and a driving device that moves the plate to align with the double liquid inlet and mixed glue outlet, allowing for perpendicular force application to prevent pressure on the glue, thereby improving dispensing accuracy and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pin-based mechanism is used to open and close the needle, then the dispensing equipment can be operated, but it causes glue pulling, accumulation, and thickness inconsistency
Solution Approach 1:
The patent removes the pin-based mechanism that causes glue disturbance and replaces it with a sliding plate mechanism. The sliding plate opens and closes the needle opening without contacting the glue flow path, extracting the harmful element (pin mechanism) while preserving the essential function of needle control.
Solution Approach 2:
The sliding wear-resistant plate serves as an intermediary between the driving device and the needle opening. Instead of directly pushing the needle with a pin, the sliding plate moves perpendicular to the glue flow to open/close the opening, mediating the control action without disturbing the glue.
2Ease of operation
If traditional switching mechanisms are used, then the dispensing process can be controlled, but push pressure is applied to the glue causing instability
Solution Approach 1:
Instead of pushing the needle directly along the glue flow direction (traditional method), the patent inverts the approach by moving the sliding plate perpendicular to the glue flow. This inverted motion direction eliminates push pressure on the glue while achieving the same opening/closing control function.
Solution Approach 2:
The patent replaces the traditional mechanical pin-pushing system with a sliding plate mechanism driven by pneumatic or hydraulic cylinders. This substitution changes the mechanical action from direct pushing to perpendicular sliding, eliminating harmful pressure effects on the glue.
3Manufacturing precision
If precision is improved for thinner display panels, then dispensing accuracy increases, but the system becomes more sensitive to operational disturbances
Solution Approach 1:
The patent converts the potential harm of mechanical switching into a benefit by using the sliding plate mechanism. The perpendicular motion of the sliding plate, which could have been a source of disturbance, is instead designed to completely avoid contacting the glue flow, turning a potential harmful mechanism into a beneficial non-intrusive control system.
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 enables precise and uniform dispensing of mixed glue without causing push pressure, enhancing the quality and reliability of the dispensing process for electronic devices by using a reciprocating switch mechanism that aligns with the flow direction.
Implementation Method 1
a reciprocating switch mechanism that aligns with the flow direction... perpendicular force application to prevent pressure on the glue
Implementation Method 2
The driving device includes a pneumatic cylinder
Implementation Method 3
The driving device includes a hydraulic cylinder
Data Source
AI summary
A reciprocating glue dispenser dispensing switch includes a switching device main body, a needle holding base, a sliding wear-resistant plate, and a driving device. The switching device main body is equipped with a double liquid inlet, the needle holding base is equipped with a mixed glue outlet, the sliding wear-resistant plate is installed between the switching device main body and the needle holding base, and the sliding wear-resistant plate is equipped with a sliding wear-resistant plate opening. The driving device is utilized to move the sliding wear-resistant plate. A mixed double-liquid glue passes through the double liquid inlet, the sliding wear-resistant plate opening and the glue outlet to dispense a mixed double-liquid glue while the double liquid inlet, the sliding wear-resistant plate opening and the glue outlet are overlapped. In addition, a double liquid dispensing equipment is also disclosed herein.