ES2328541B1 - MANUFACTURING PROCESS OF AN ISSUER FOR DRIP IRRIGATION. - Google Patents
MANUFACTURING PROCESS OF AN ISSUER FOR DRIP IRRIGATION. Download PDFInfo
- Publication number
- ES2328541B1 ES2328541B1 ES200602841A ES200602841A ES2328541B1 ES 2328541 B1 ES2328541 B1 ES 2328541B1 ES 200602841 A ES200602841 A ES 200602841A ES 200602841 A ES200602841 A ES 200602841A ES 2328541 B1 ES2328541 B1 ES 2328541B1
- Authority
- ES
- Spain
- Prior art keywords
- emitter
- membranes
- issuer
- manufacturing process
- drip irrigation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000002262 irrigation Effects 0.000 title claims abstract description 9
- 238000003973 irrigation Methods 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000012528 membrane Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000000470 constituent Substances 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 5
- 238000000465 moulding Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000295 complement effect Effects 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 abstract 1
- 239000000806 elastomer Substances 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
- -1 polyethylene Polymers 0.000 description 13
- 239000004698 Polyethylene Substances 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010847 non-recyclable waste Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
- A01G25/023—Dispensing fittings for drip irrigation, e.g. drippers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Proceso de fabricación de un emisor para riego por goteo.Manufacturing process of an emitter for irrigation drip
La invención consiste en llevar a cabo el moldeo del emisor en su conjunto en un único molde, mediante un proceso de bi-inyección, de manera que bien simultáneamente o bien secuencialmente, se aporta por un lado el material constitutivo de la parte rígida del emisor, es decir su cuerpo y su tapa, y por otro el material constitutivo de sus membranas, de manera que a término de la fase de moldeo única los dos materiales se integran formando un conjunto monopieza. Se ha previsto además que el material constitutivo de las membranas sea un elastómero termoplástico, de manera que se consiguen dos efectos beneficiosos y complementarios, por un lado una notable simplificación en el proceso de fabricación del emisor, y por otro que todo el material que participa en el emisor sea reciclable, en contra de lo que sucede en los emisores convencionales en los que las membranas son de silicona.The invention consists in carrying out the molding of the emitter as a whole in a single mold, through a process of bi-injection, so that either simultaneously or well sequentially, the material is provided on the one hand constitutive of the rigid part of the emitter, that is to say its body and its lid, and on the other the constituent material of its membranes, of so that at the end of the single molding phase the two materials they are integrated forming a single piece set. It is also planned that the constituent material of the membranes is an elastomer thermoplastic, so that two beneficial effects are achieved and complementary, on the one hand a remarkable simplification in the issuer manufacturing process, and other than all the material that participates in the issuer is recyclable, contrary to what it happens in conventional emitters in which the membranes are of sylicon.
Description
Proceso de fabricación de un emisor para riego por goteo.Manufacturing process of an emitter for irrigation drip
La presente invención se refiere a un nuevo proceso para la fabricación de un emisor para riego por goteo, es decir del comúnmente denominado "gotero" que participa en instalaciones de riego, concretamente del tipo de los que se asocian a una tubería de distribución de agua, adherida a su cara interna o externa, para regular y controlar la salida del fluido al exterior, a través de al menos un orificio de salida de dicha tubería de distribución.The present invention relates to a new process for the manufacture of an emitter for drip irrigation, is say of the commonly called "dripper" that participates in irrigation facilities, specifically the type of associated with a water distribution pipe, attached to its face internal or external, to regulate and control the flow of fluid to the outside, through at least one outlet opening of said distribution pipe
El objeto de la invención es conseguir un emisor mediante un proceso de fabricación simple y económico, con la consecuente repercusión a nivel de costos, y paralelamente conseguir un emisor integralmente reciclable, con la consecuente y beneficiosa repercusión que ésto supone a nivel de contaminación medioambiental.The object of the invention is to obtain a transmitter through a simple and economical manufacturing process, with the consequent cost impact, and in parallel achieve a fully recyclable emitter, with the consequent and beneficial impact this implies at the level of contamination environmental.
En la actualidad existen emisores para riego por goteo compuestos de varias piezas que requieren un montaje individualizado y en algunos casos de difícil automatización.Currently there are emitters for irrigation by dripping composed of several pieces that require assembly individualized and in some cases difficult to automate.
A este grupo de emisores corresponden, como por ejemplo, los que muestran las patentes ES 2 137 825, EP 730 822 y EP 467 386.To this group of issuers correspond, as per example, those showing patents ES 2 137 825, EP 730 822 and EP 467 386.
Concretamente estos emisores están constituidos mediante un cuerpo y una tapa, entre los que se establece un laberinto para conseguir la necesaria pérdida de carga, existiendo también membranas o gomas elásticas que se ocupan de obturar y desobturar los diferentes pasos u orificios que el agua recorre en el seno del emisor, para conseguir el efecto autocompensante de posibles variaciones de presión en el suministro de agua.Specifically these issuers are constituted through a body and a cover, among which a labyrinth to achieve the necessary loss of load, existing also elastic membranes or gums that are responsible for sealing and deobturate the different steps or holes that water travels in the sender's breast, to achieve the self-compensating effect of possible variations of pressure in the water supply.
Son críticas tanto por la necesidad de montarlas específicamente en zonas complejas, con asientos y válvulas especiales, como por la conveniencia de alcanzar una óptima estabilidad posicional que asegure su correcto funcionamiento.They are critical both for the need to mount them specifically in complex areas, with seats and valves special, as for the convenience of achieving optimal positional stability that ensures its correct functioning.
En todas las realizaciones, la membrana y las partes rígidas deben montarse en fases diferentes, lo que complica considerablemente el proceso.In all embodiments, the membrane and the rigid parts must be mounted in different phases, which complicates considerably the process.
Por otro lado las partes rígidas del emisor están obtenidas en polietileno o polipropileno, materiales fácilmente reciclables, pero sin embargo las membranas están normalmente obtenidas a base de silicona, producto no reciclable, lo que hace que al encontrarse dichas membranas en el interior del cuerpo rígido y al ser muy dificultosa su extracción, se desechen como residuos no reciclables los emisores en su totalidad, es decir tanto su cuerpo envolvente como sus membranas interiores.On the other hand the rigid parts of the emitter are obtained in polyethylene or polypropylene, materials easily recyclable, but nevertheless the membranes are normally obtained based on silicone, non-recyclable product, what causes that when these membranes are found inside the rigid body and being very difficult to remove, discard as non-recyclable waste emitters in their entirety, that is both its enveloping body and its inner membranes.
El proceso de fabricación que la invención propone resuelve de forma plenamente satisfactoria la problemática anteriormente expuesta, en los dos aspectos comentados.The manufacturing process that the invention proposes to solve the problem fully satisfactorily previously exposed, in the two aspects commented.
Para ello, de forma más concreta y de acuerdo con una de las características de la invención, tanto la parte rígida del emisor, es decir su cuerpo y su tapa, o lo que es lo mismo su carcasa, se obtienen simultáneamente a su parte elástica, es decir a su membrana o membranas en una fase de bi-inyección única, constituyendo un conjunto monopieza y en una sola operación de moldeo.To do this, more specifically and in agreement with one of the characteristics of the invention, both the part rigid of the emitter, that is to say its body and its cover, or what is it same its housing, are obtained simultaneously to its elastic part, that is to say to its membrane or membranes in a phase of single bi-injection, constituting a set single piece and in a single molding operation.
Esto puede llevarse a cabo con cualquier sistema de bi-inyección convencional.This can be done with any system. of conventional bi-injection.
Complementariamente y de acuerdo con otra de las características de la invención, se ha previsto que la clásica silicona para obtención de las membranas sea sustituida por un elastómero termoplástico, que ofreciendo una funcionalidad similar a la de la silicona, funde perfectamente con el polietileno o el polipropileno, y además es un producto reciclable, que permite el reciclado del gotero en su conjunto.Complementarily and according to another of the characteristics of the invention, it is envisioned that the classic silicone to obtain the membranes is replaced by a thermoplastic elastomer, which offering similar functionality to that of silicone, it blends perfectly with polyethylene or polypropylene, and it is also a recyclable product, which allows recycling of the dropper as a whole.
Se consigue de esta manera un emisor monopieza, sin necesidad de emplear ningún tipo de técnica adhesiva, química, soldadura, etc, ya que el propio material elastómero de las juntas o membranas se une íntegramente a la parte rígida del emisor, de forma tan sencilla como lo es una operación de bi-inyección.In this way a single-piece transmitter is achieved, without using any type of adhesive, chemical technique, welding, etc., since the elastomeric material of the joints or membranes binds completely to the rigid part of the emitter, of as simple as an operation of bi-injection
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of it, is accompanied as part member of that description, a set of drawings where with illustrative and non-limiting nature, what has been represented next:
La figura 1.- Muestra una vista en perspectiva de un ejemplo de realización práctica de un emisor, realizado con el proceso de la invención, en la que el emisor aparece abierto, mostrando su estructura interior.Figure 1.- Shows a perspective view of an example of practical implementation of an issuer, made with the process of the invention, in which the emitter appears open, Showing its interior structure.
La figura 2.- Muestra, también según una vista en perspectiva, el emisor de la figura anterior en situación de cierre o de uso.Figure 2.- Shows, also according to a view in perspective, the issuer of the previous figure in a situation of Close or use.
La figura 3.- Muestra, finalmente, una sección longitudinal del emisor.Figure 3.- Shows, finally, a section longitudinal of the emitter.
En las figuras reseñadas puede observarse un emisor para riego por goteo, básicamente convencional, en el que participan un cuerpo base (1) y una tapa (2), que como anteriormente se ha dicho están obtenidas a base de polietileno, polipropileno o similar y que constituyen la parte rígida de emisor, elementos unidos entre sí mediante una porción abisagrada (3) que integra con carácter monopieza tapa y cuerpo base, constituyendo estos tres elementos un único conjunto inyectado en material plástico en la primera fase de la bi-inyección.In the figures outlined, a emitter for drip irrigation, basically conventional, in which a base body (1) and a cover (2) participate, which as previously said they are obtained based on polyethylene, polypropylene or similar and that constitute the rigid part of emitter, elements joined together by a hinged portion (3) that integrates with a single piece cover and base body, these three elements constituting a single set injected into plastic material in the first phase of the bi-injection
El emisor incorpora además la clásica entrada de fluido (4) localizada en el cuerpo base (1), una salida de fluido (5) localizada en la tapa (2) y un laberinto intermedio (6), ubicado también en el cuerpo base (1), que comunica la entrada (4) y la salida (5).The issuer also incorporates the classic entrance of fluid (4) located in the base body (1), a fluid outlet (5) located on the lid (2) and an intermediate maze (6), also located in the base body (1), which communicates the entrance (4) and the exit (5).
Por otro lado, enfrentadas con la entrada (4) y la salida (5) se ubican las clásicas membranas o juntas (7) y (8) de control de paso de fluido, que podría ser una sola, con la especial particularidad de que estas membranas se obtienen en la segunda fase de la bi-inyección, de manera que quedan unidas a la parte rígida (1-2-3) de emisor, con carácter monopieza, estando a su vez dichas membranas (7) y (8) obtenidas, como también se ha dicho con anterioridad, a partir de un elastómero termoplástico aportable independientemente al molde de inyección desde una alimentador distinto del de el polietileno o polipropileno, pero sin cambio de molde.On the other hand, faced with the entrance (4) and the outlet (5) the classic membranes or joints (7) and (8) are located fluid flow control, which could be only one, with the special feature that these membranes are obtained in the second phase of bi-injection, so that are attached to the rigid part (1-2-3) of issuer, with character single piece, said membranes (7) and (8) being obtained, as also said before, from a thermoplastic elastomer independently contributed to the mold of injection from a feeder other than polyethylene or polypropylene, but without mold change.
La bi-inyección puede llevarse a cabo suministrando los dos materiales constitutivos de los dos tipos de piezas, es decir el polietileno o polipropileno, por un lado, y el elastómero termoplástico por otro, a través de entradas independientes del molde, accesibles a las cámaras del mismo correspondientes al conjunto constituido por el cuerpo base (1) y la tapa (2) y a las membranas (7-8), mediante caudal controlado de materiales, para que la unión de los mismos se realice en el momento crítico en el que se produce el llenado de las dos cámaras, o bien la bi-inyección puede realizarse en dos fases sucesivas, aislando inicialmente la cámara correspondiente a las membranas y llenando con el polietileno o el polipropileno la cámara correspondiente a la parte rígida del emisor, y tras esta primera fase comunicando ambas cámaras del molde y llenando con el elastómero termoplástico la segunda cámara, la correspondiente a las membranas.Bi-injection can lead to out supplying the two constituent materials of the two types of parts, that is to say polyethylene or polypropylene, by a side, and thermoplastic elastomer on the other, through entrances independent of the mold, accessible to its chambers corresponding to the set consisting of the base body (1) and the lid (2) and membranes (7-8), by flow controlled of materials, so that the union of the same ones perform at the critical moment in which the filling of the two chambers, or the bi-injection can be carried out in two successive phases, initially isolating the camera corresponding to the membranes and filling with polyethylene or polypropylene the chamber corresponding to the rigid part of the issuer, and after this first phase communicating both cameras of the mold and filling the second chamber with the thermoplastic elastomer, the one corresponding to the membranes.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200602841A ES2328541B1 (en) | 2006-11-08 | 2006-11-08 | MANUFACTURING PROCESS OF AN ISSUER FOR DRIP IRRIGATION. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200602841A ES2328541B1 (en) | 2006-11-08 | 2006-11-08 | MANUFACTURING PROCESS OF AN ISSUER FOR DRIP IRRIGATION. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2328541A1 ES2328541A1 (en) | 2009-11-13 |
| ES2328541B1 true ES2328541B1 (en) | 2010-09-22 |
Family
ID=41254503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200602841A Active ES2328541B1 (en) | 2006-11-08 | 2006-11-08 | MANUFACTURING PROCESS OF AN ISSUER FOR DRIP IRRIGATION. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2328541B1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL93255A (en) * | 1990-02-02 | 1997-03-18 | Plastro Gvat | Drip irrigation lines |
| US5183208A (en) * | 1990-07-20 | 1993-02-02 | Agroteam Consultants Ltd. | Drip irrigation emitter |
| IL129817A (en) * | 1999-05-06 | 2002-12-01 | Plassim Tech Plastics Works | Method for producing an irrigation pipeline with inner emitters |
-
2006
- 2006-11-08 ES ES200602841A patent/ES2328541B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| ES2328541A1 (en) | 2009-11-13 |
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