Hydrogel Cutting Apparatus with Segmented Perforated Plates
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Solution Overview
Problem
Existing methods for cutting superabsorbent hydrogel into small sizes are inefficient, leading to uneven particle sizes and changes in physical properties due to increased pressure, which affects the manufacturing quality and extractable content.
Innovation Solution
A complex minute cutting apparatus with a barrel body, transfer unit, and cutting modules, featuring a screw member and perforated plates with varying hole diameters, allows for smooth cutting of hydrogel into small sizes by gradually decreasing hole diameters towards the discharge part, preventing kneading and maintaining particle size consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single cutter blade and perforated plate are used to cut hydrogel, then the device structure is simple, but the particle size cannot be reduced to equal to or smaller than a predetermined size
Solution Approach 1:
The single cutter blade and perforated plate are divided into multiple cutter blades and multiple perforated plates arranged in sequence. Each cutter-perforated plate combination acts as an independent cutting stage, progressively reducing particle size. The first cutter blade cuts hydrogel into coarse particles, which are then further reduced by subsequent cutter blades and perforated plates to achieve the predetermined particle size or smaller.
Solution Approach 2:
The cutting process transitions from a single-plane cutting action to a multi-stage sequential cutting process along the longitudinal axis of the barrel body. Multiple cutter blades and perforated plates are arranged at different positions along the transfer direction, creating a dimensional progression that enables progressive particle size reduction while maintaining a relatively compact device structure.
2Manufacturing precision
If the hydrogel is cut into very small particle size by repeating the cutting process, then the particle size is reduced, but the gel causes a kneading phenomenon by increasing pressure in the chopper
Solution Approach 1:
The cutting process is segmented into multiple stages with each stage performing a specific cutting function. The first cutter blade performs coarse cutting, while subsequent cutter blades perform fine cutting. This segmentation allows progressive particle size reduction without concentrating all cutting force in a single location, thereby reducing pressure buildup and preventing kneading that would alter the hydrogel's physical properties.
Solution Approach 2:
The perforated plates serve as intermediaries between cutting stages. They not only discharge cut particles but also distribute and regulate the flow of hydrogel between cutter blades, preventing excessive pressure buildup. The perforated plates act as flow control elements that maintain steady-state cutting conditions and prevent the hydrogel from being over-compressed.
3Manufacturing precision
If a single perforated plate is used to discharge cut hydrogel, then the device structure is simple, but it is difficult to achieve uniform particle size distribution
Solution Approach 1:
The single perforated plate discharge system is segmented into multiple perforated plates, each with potentially different hole sizes and patterns. The first perforated plate discharges coarser particles from the first cutting stage, while subsequent perforated plates discharge finer particles from later cutting stages. This segmentation enables uniform particle size distribution by matching each discharge plate to its corresponding cutting stage's output characteristics.
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 apparatus enables efficient cutting of hydrogel into small sizes without kneading, improving manufacturing quality and reducing extractable content, ensuring consistent particle sizes and enhanced surface area for drying.
Implementation Method 1
a screw member (21) that is rotatably installed in the transfer space (11) to move the hydrogel
Implementation Method 2
a cutter member (31) installed inside the barrel body (10) to pulverize the hydrogel transferred by the transfer unit (20)
Data Source
AI summary
A complex minute cutting apparatus for a superabsorbent hydrogel is disclosed. The complex minute cutting apparatus includes: a barrel body in which a transfer space through which a hydrogel is transferred is formed and a discharge part is formed at a side surface thereof; a transfer unit installed in the barrel body to transfer the hydrogel in the transfer space; and a plurality of cutting modules installed in the transfer unit to pulverize the hydrogel and discharging it to an outside of the discharge unit in a cut state.