Motorized Hot Melt Glue Gun Side-Mounted Feed Unit
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Solution Overview
Problem
Existing motor-driven glue guns face operational interruptions due to the need to wait for the previous hot melt adhesive stick to be fully consumed before adding a new one, which can lead to idle time and increased risk of injury during the adhesive replacement process.
Innovation Solution
A side-mounted feed unit connected to the motor, allowing for early replacement of the hot melt adhesive rod while the previous stick is still being used, along with a ratchet mechanism and guided conveyor system for secure and efficient adhesive rod handling, and a refill indicator for timely notification of when to replace the adhesive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the motor-driven feed mechanism is concealed far inside the glue gun housing to prevent finger entrapment, then safety is improved, but the operator cannot insert a new hot melt stick until the previous one is fully consumed, causing operational interruptions
Solution Approach 1:
The feed mechanism is divided into two separate units: a first feed unit concealed inside the housing for safety, and a second feed unit accessible from the outside for easy stick replacement. This segmentation allows each unit to perform its function independently without compromising safety or operational continuity.
Solution Approach 2:
The second feed unit acts as an intermediary between the operator and the concealed first feed unit. It provides a safe interface for inserting new hot melt sticks, which are then transferred to the first feed unit for actual feeding into the heating element.
2Ease of operation
If the feed mechanism is positioned to allow easy access for inserting new hot melt sticks, then ease of operation is improved, but the risk of finger entrapment increases
Solution Approach 1:
The feed mechanism is divided into two separate units: a first feed unit concealed inside the housing for safety, and a second feed unit accessible from the outside for easy stick replacement. This segmentation allows each unit to perform its function independently without compromising safety or operational continuity.
3Device complexity
If the motor drives the feed device directly, then device complexity is reduced, but the feed mechanism must be fully concealed for safety, causing operational interruptions
Solution Approach 1:
The feed mechanism is divided into two separate units: a first feed unit concealed inside the housing for safety, and a second feed unit accessible from the outside for easy stick replacement. This segmentation allows each unit to perform its function independently without compromising safety or operational continuity.
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
Ensures continuous operation of the glue gun without idle time between adhesive sticks and reduces the risk of injury during replacement, with the side-mounted feed unit enabling early insertion of a new adhesive rod and the guided system ensuring stable and secure handling.
Implementation Method 1
a heating device for melting at least a portion of a strand-shaped hot melt adhesive rod
Implementation Method 2
the feed unit has a ratchet mechanism. Specifically, the feed unit has a ratchet coupling. Using this ratchet coupling, the strand-shaped hot melt adhesive rod can be easily pushed forward
Data Source
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AI summary
In a glue gun, in particular a hot glue gun, for dispensing a flowable adhesive, comprising a heating device (30) for melting at least a portion of a strand-shaped hot melt adhesive rod, a nozzle (21) through which the flowable adhesive can be dispensed, a feed device (32) for feeding the hot melt adhesive rod into the heating device (30), and an operating device (28) for actuating a motor (42), wherein the motor (42) drives the feed device (32), the operability and handling can be improved by arranging a feed unit (46) on a side of the feed device (32) facing away from the heating device (30) for feeding the hot melt adhesive rod into the feed device (32).