Coffee brewing device
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Solution Overview
Problem
Traditional coffee brewing devices face challenges such as high precision and wear resistance requirements, high manufacturing and maintenance costs, and susceptibility to jamming due to complex structures and multiple guiding components.
Innovation Solution
A coffee brewing device with a simplified structure, featuring a brewing head and brewer driven by a single motor, utilizing a guide plate with special-shaped slots to enable precise movement without the need for a movable frame, thereby reducing jamming and maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional brewing head threads and multiple guiding components are used, then movement control is achieved, but cleaning becomes inconvenient and manufacturing/maintenance costs increase
Solution Approach 1:
The invention removes the traditional threaded brewing head structure and extracts only the essential function of positioning and movement control. The brewing head is simplified to a smooth cylindrical structure that rotates and moves linearly without threads, eliminating dirt accumulation points while maintaining functional requirements.
Solution Approach 2:
The guiding function is segmented into two independent components: the special-shaped slot in the guide plate handles rotational positioning, while the linear slot handles axial movement. This segmentation allows each component to perform a single function simply, improving cleanability and reducing overall structural complexity.
2Manufacturing precision
If two tracks and a movable frame are used to guide the powder box, then precise movement is achieved, but manufacturing costs and maintenance costs increase
Solution Approach 1:
The invention merges the functions of multiple guiding components into a single guide plate with integrated special-shaped and linear slots. This consolidation achieves precise movement control through the combined action of the two slot types while significantly reducing the number of parts, manufacturing complexity, and associated costs.
3Reliability
If three guiding components act on the powder box, then movement control is achieved, but wear resistance requirements increase and jamming failures become more likely
Solution Approach 1:
The invention removes the movable frame and reduces the guiding system to essential components only. The guide plate with its two slot types provides sufficient guidance without the third guiding component, reducing wear points and jamming risks while maintaining adequate precision through the special-shaped slot geometry.
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 achieves reduced jamming incidents, lower precision and wear resistance requirements, and decreased manufacturing and maintenance costs, while maintaining precise movement and efficient brewing operations.
Implementation Method 1
the screw rod is in transmission engagement with the drive motor via a first gear set, the screw rod is connected to the driving bracket through a threaded engagement
Implementation Method 2
one side of the guide plate is provided with a special-shaped slot, and the other side is provided with an elongated slot, the brewing head or the screw rod is provided with a main convex column that extends into the special-shaped slot
Data Source
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AI summary
The invention relates to the technical field of coffee machines, and in particular to a coffee brewing device, comprising a brewing head and a brewer, the device also comprises a fixing bracket, a brewer bracket, and a drive motor, the fixing bracket is provided with a screw rod and a driving bracket, the screw rod is in transmission engagement with the drive motor via a first gear set, the screw rod is connected to the driving bracket through a threaded engagement, the driving bracket is connected to the brewing head; the brewer is connected to the brewer bracket, the brewer bracket is rotatably engaged with the fixing bracket; the device also comprises a guide plate, the guide plate is rotatably engaged with the fixing bracket, one side of the guide plate is provided with a special-shaped slot, and the other side is provided with an elongated slot, the brewing head or the screw rod is provided with a main convex column that extends into the special-shaped slot, the brewer bracket is provided with a follower convex column that extends into the elongated slot. The movement of the main convex column within the special-shaped slot drives the rotation of the guide plate; by abandoning the need for a movable frame, the brewer is directly guided by the elongated slot; this significantly reduces the incidence of jamming in the brewer, lowers the requirements for precision and wear resistance, and further decreases manufacturing and maintenance costs.