Ejection Hole Formation in Drip Pressure Reducing Hose
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Solution Overview
Problem
Conventional emitting pipe boring methods face inefficiencies and high defect rates due to the difficulty in accurately setting the circumferential distance between punches and the moving velocity of the drip pressure reducing hose, leading to inaccurate ejection hole placement on the discharging portion of pressure reducing drips.
Innovation Solution
The method involves forming an upward projection on the discharging portion of the pressure reducing drip, which creates a protruding portion on the drip pressure reducing hose, allowing for the horizontal cutting of an ejection hole without the need for precise alignment of the drip projection detecting unit and rotation punch, thereby simplifying the operation and ensuring accurate hole placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the circumferential distance between punches and moving velocity of the drip pressure reducing hose are accurately set, then the ejection hole can be bored at the accurate position of the discharging portion, but the operation becomes complex and difficult to operate
Solution Approach 1:
The drip pressure reducing hose itself serves as the positioning reference through its structural features (protrusions or grooves formed during molding). The hose's own geometry guides the punch positioning, eliminating the need for external detection units and complex parameter settings. The system uses the workpiece's inherent features to control the boring operation.
Solution Approach 2:
The invention extracts and eliminates the complex detection and control system (drip projection detecting unit, precise velocity control mechanisms) from the manufacturing process. By removing these unnecessary components and relying solely on the molded structural features of the hose, the system achieves both simplicity and accuracy.
2Manufacturing precision
If the circumferential distance between punches is set accurately, then the ejection hole is formed at the correct position, but the material loss increases due to high defect ratio
Solution Approach 1:
The hose's molded protrusions or grooves automatically guide punch positioning, ensuring accurate ejection hole placement without requiring complex external control systems. This self-guiding mechanism eliminates positioning errors that would otherwise cause defective products and material waste.
3Manufacturing precision
If the distance between drip projection detecting unit and rotation punch is accurately set, then the ejection hole placement is accurate, but the device complexity increases
Solution Approach 1:
The invention completely removes the drip projection detecting unit and its associated distance setting mechanisms from the system. The structural features (protrusions or grooves) are molded directly into the hose during the extrusion process, providing inherent positioning references that eliminate the need for separate detection and control apparatus.
Solution Approach 2:
The positioning function is merged into the hose molding process itself. The protrusions or grooves are formed as integral features of the hose during extrusion, combining the positioning reference creation with the primary manufacturing operation and eliminating the need for separate positioning systems.
Data Source
AI summary
An emitting pipe boring method, for forming an ejection hole on a drip pressure reducing hose above a discharging portion of at least one drip which is adhered to an inside of the drip pressure reducing hose and includes an introducing portion, a pressure reducing portion and a discharging portion, includes a first step for forming an upward projection to be higher than a height of the drip at the discharging portion of the drip, a second step for forming a protruding portion on the drip pressure reducing hose by the upward projection of the drip when the drip is adhered to the inside of the drip pressure reducing hose, and a third step for forming an ejection hole of the drip pressure reducing hose by horizontally cutting an upper portion of the protruding portion formed on the drip pressure reducing hose through the second step.