Emitter and method for opening water outlet openings

Abstract

The irrigation matter (1) of the present invention is inserted and welded in the interior of a drip irrigation pipe (2) during production thereof. It has a number of protrusions (8) arranged in a row emerging from a solid flat part / base (6) of the outer convex surface (7) of the emitter (1). The pipe (2) is locally swollen, covers and is welded both on the protrusions (8) and on their base (6), so that a unified welded assembly is formed between protrusions (8) and the pipe. The water outlets (10) are typically and preferably formed between the prismatic protrusions (8) by cutting off the tips of the protrusions (8) during passage of the drip irrigation pipe in a continuously rotating concave fraise (35) located at the end of the production line. Cutting takes place after the pipe has passed through a system of successive pairs of concave and convex rollers which squeeze it, stretch it and make it rigid, maintaining it in a flattened convex and bent form.

Description

technical field [0001] The present invention relates to a built-in linear emitter for irrigation, which is inserted and welded inside the drip irrigation pipe during production, which subsequently allows a specific part to be cut and then automatically perforated through the drip irrigation pipe to form a water outlet opening; and a A method of inserting and coupling an emitter to a drip irrigation line. Background technique [0002] The drip irrigation pipe with built-in emitter is a complex product, the most important element in drip irrigation, the reliability of its function and its production cost determine the quality, cost and agricultural development of the entire drip irrigation process. [0003] The investment cost of the drip irrigation pipe production line is also quite large, especially the cost of the complex mechanism involved in enabling the water to drain in the soil, that is, the mechanism for orienting, inserting and detecting the emitters. A mechanism wi...

AI Technical Summary

Problems solved by technology

The disadvantages of this configuration are as follows: 1) The pipe cannot be flattened or completely kept flat, especially at both ends of the closed flat pipe, because the pipe is not continuously pressed from both sides

b) The flattened pipe can move sideways (left and right) on the cylinder making the cutting process problematic

iii) A cylindrical milling cutter is not the best design, because the pipe itself can be damaged by the milling cutter in some areas that should not be damaged, especially the ends of closed flat pipes (not pressed), which can protrude in small on objects (especially thick-walled pipes)

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