CN1528587A - Drip irrigation pipe head binding method - Google Patents
Drip irrigation pipe head binding method Download PDFInfo
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- CN1528587A CN1528587A CNA2003101058285A CN200310105828A CN1528587A CN 1528587 A CN1528587 A CN 1528587A CN A2003101058285 A CNA2003101058285 A CN A2003101058285A CN 200310105828 A CN200310105828 A CN 200310105828A CN 1528587 A CN1528587 A CN 1528587A
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- water dropper
- pipe embryo
- pipe
- embryo
- head
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- 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
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides an emitter splicing method of drip irrigation pipe, including drip irrigation pipe and emitter materials provision and emitter splicing, its character: the formula for the emitter material, high pressure polythene : low pressure polythene : medium density polythene = 2: 6 : 2, the formula for pipe blank, high pressure polythene : linear polythene : low pressure polythene = 2 : 6 : 2, the melt index of the emitter and pipe blank materials is 6-8, the temperature of nose and mouth mould is 190-200 deg.C and the splicing strength is high and stable. It is applied to splicing various inserted and sheet emitters of drip irrigation pipe.
Description
Technical field
Patent of the present invention relates to a kind of production and processing and technology of drip irrigation pipe, particularly a kind of adhering method of drip irrigation pipe water dropper.
Background technology
Existing drip irrigation pipe water dropper is bonding, and the one, water dropper does not pass through preheating; The 2nd, the formula variation of water dropper material and pipe embryo material is very big, pipe embryo material requirements soft belt is flexible, and will be fit to extrude the process conditions of processing, and material is mainly polyethylene from high pressure process, melt index is generally 1～2, and water dropper will bear the impact of punching, and desired strength and hardness are all bigger, and the requirement of suitable Shooting Technique, material is based on low-pressure polyethylene, melt index generally about 10, requires the temperature of head and mouthful mould to be controlled at about 220 ℃ like this, is difficult to control.Simultaneously,, the temperature of water dropper is difficult near the temperature of managing embryo, thereby causes water dropper not enough, the defect rate height with pipe embryo adhesive strength because water dropper time in head is very short.
Summary of the invention
Problem at above-mentioned prior art exists the objective of the invention is to, and a kind of adhering method of drip irrigation pipe water dropper is provided, and this method one is that water dropper is sent into preheating in the pipe embryo process in ordering, and the temperature that makes water dropper is fast near the temperature of managing embryo.The 2nd, by the melt index of monitoring mixture, change the prescription of water dropper and pipe embryo material, the melt index of water dropper and pipe embryo material is reached between 6～8, the cohesive force of this interval material is beneficial to the phase counterdiffusion between the sticky object molecule very much, the temperature that needs only like this head and mouthful mould is controlled between 190 ℃～200 ℃, is easy to control operation, thereby has reduced technology difficulty, improve adhesive strength, reduced the product defect rate.
The technical solution that realizes the foregoing invention purpose is: the adhering method of this filling pipe water dropper, comprise the selection of water dropper and pipe embryo material, select the water dropper material prescription to be, polyethylene from high pressure process: low-pressure polyethylene: medium density polyethylene=2: 6: 2, pipe embryo prescription is, polyethylene from high pressure process: linear polyethylene: low-pressure polyethylene=6: 2: 2, the melt index of water dropper and pipe embryo material is between 6～8, the water dropper that injection mo(u)lding is stand-by is clamp-oned preheating in the process in ordering, when pipe embryo process right-angle handpiece, water dropper is sent into bar by cylinder and is squeezed into head from the tapping of right-angle handpiece, and head temperature is near the temperature of pipe embryo, and the pipe embryo is through machine head port mould the time, clamp-on the pipe embryo from head, make the melt index of pipe embryo and water dropper very approaching, and all be in and be easy to bonding interval, the water dropper appearance that the pipe embryo of high temperature head and fusion will have been inlayed rapidly is heated to about 200 ℃, after pipe embryo and water dropper are sent mouthful mould, then through extruding, heat seal, making water dropper and pipe, embryo is extrusion bonded is integral.
The present invention is applicable to the bonding of all kinds of internally-inlaids and chip drip irrigation pipe water dropper, owing to adjusted technological parameter, make the melt index of pipe embryo and water dropper very approaching, and all be in and be easy to bonding interval, after pipe embryo and water dropper are sent mouthful mould, the rapid cooling of pipe embryo and shrinking fast, be integral with water dropper is extrusion bonded, not only do not improve the price of product, and can improve the bearing strength of product, improve the productivity ratio and the adhesive strength of product.
Description of drawings
Fig. 1 is an adhering method process drawing of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
According to technique scheme, material prescription and method step are:
1, material is prepared: the selection of water dropper and pipe embryo material is the basis of processing technology, and promptly material should satisfy performance, injection moulding (extruding) processing technology of product, satisfies bonding processing technology again.Therefore, (1) water dropper material should have certain intensity and hardness, also will be fit to the processing technology of injection mo(u)lding, and its melt index is 6～8, and material prescription is a polyethylene from high pressure process: low-pressure polyethylene: medium density polyethylene=2: 6: 2; Pipe embryo material should have certain pliability, satisfies and extrudes processing technology, and its melt index is 6～8, and material prescription is a polyethylene from high pressure process: linear polyethylene: low pressure degree polyethylene=6: 2: 2.(2) material that will mix in proportion mixes through batch mixer, and about 10 minutes, take out a little again and carry out melt index determination, get final product if meet the requirements, mix otherwise adjust again.
2, injection moulding water dropper, the material injection enters the water dropper mould, and die sinking is promptly plastic after pressurize, cooling;
3, extruding pipe embryo: with the material process vacuum charger that configures, through the single screw extrusion machine heating and melting, circular passage by right-angle handpiece forms the pipe embryo, water-dropper automatic carry location, by full-automatic conveying device water dropper is pressed positional alignment accurately, by tubing length gauge feedback signal, the equidistant water dropper that send enters head, makes it and manage embryo inwall mosaic bonding.After making tubing cooling determine caliber by the vacuum sizing system, with fully-automatic intelligent Laser Measuring sense locating laser, punching at a high speed, last, cooling again, traction, rolling.
4, bonding
Bonding occurring in above-mentioned the 3rd process, at first molded stand-by water dropper is clamp-oned in ordering and be preheating in the process about 100 ℃, when pipe embryo process right-angle handpiece, water dropper is sent into bar by cylinder and is squeezed into head from the tapping of right-angle handpiece, this moment, the pipe embryo temperature by head reached about 200 ℃, the water dropper appearance heating that the pipe embryo of high temperature head and fusion will have been inlayed rapidly, temperature is rapidly near the temperature (about 200 ℃) of managing embryo, because the melt index of pipe embryo and water dropper is very approaching, and all be in and be easy to bonding interval, after pipe embryo and water dropper are sent mouthful mould, because the rapid cooling of pipe embryo and shrink fast and water dropper is extrusion bonded is integral.Not only do not improve the price of product, and can improve the bearing strength of product, improve the productivity ratio and the adhesive strength of product.
Claims (1)
1. the adhering method of a drip irrigation pipe water dropper is characterized in that, may further comprise the steps:
1) material is prepared
The water dropper material prescription is:
Polyethylene from high pressure process: low-pressure polyethylene: medium density polyethylene=2: 6: 2;
Pipe embryo material prescription is:
Polyethylene from high pressure process: linear polyethylene: low-pressure polyethylene=6: 2: 2;
The melt index of water dropper material and pipe embryo material is between 6～8;
2) injection moulding water dropper
The material injection enters the water dropper mould, and die sinking is promptly plastic after pressurize, cooling;
3) extruding pipe embryo
After pipe embryo material is extruded by screw rod, determine that through head, a mouthful mould caliber and wall thickness carry out vacuum sizing, through cooling, traction aftershaping;
4) bonding
At first that injection mo(u)lding is stand-by water dropper is clamp-oned in ordering and is preheating in the process about 100 ℃, when pipe embryo process right-angle handpiece, water dropper is sent into bar by cylinder and is squeezed into head from the tapping of right-angle handpiece, head temperature is controlled between 190 ℃～200 ℃, temperature is near the temperature of pipe embryo, in the time of pipe embryo process machine head port mould, clamp-on the pipe embryo from head, make the melt index of pipe embryo and water dropper very approaching, and all be in and be easy to bonding interval, the water dropper appearance that the pipe embryo of high temperature head and fusion will have been inlayed rapidly is heated to about 200 ℃, after pipe embryo and water dropper are sent mouthful mould, then through extruding, heat seal, making water dropper and pipe, embryo is extrusion bonded is integral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101058285A CN1244444C (en) | 2003-10-14 | 2003-10-14 | Drip irrigation pipe head binding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101058285A CN1244444C (en) | 2003-10-14 | 2003-10-14 | Drip irrigation pipe head binding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1528587A true CN1528587A (en) | 2004-09-15 |
| CN1244444C CN1244444C (en) | 2006-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101058285A Expired - Fee Related CN1244444C (en) | 2003-10-14 | 2003-10-14 | Drip irrigation pipe head binding method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1244444C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501373A (en) * | 2011-11-04 | 2012-06-20 | 西安航空动力股份有限公司 | Fine adjustment device for positive and negative selecting nozzles for inserts of drip irrigation belts |
| CN105291182A (en) * | 2015-10-30 | 2016-02-03 | 青岛新大成塑料机械有限公司 | Drilling machine used for drop irrigation pipe belt and drop irrigation pipe belt production line |
| CN108056006A (en) * | 2018-01-19 | 2018-05-22 | 天津市华旭盛泰科技有限公司 | A kind of drip irrigation zone and its hot adhesion method |
-
2003
- 2003-10-14 CN CNB2003101058285A patent/CN1244444C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501373A (en) * | 2011-11-04 | 2012-06-20 | 西安航空动力股份有限公司 | Fine adjustment device for positive and negative selecting nozzles for inserts of drip irrigation belts |
| CN102501373B (en) * | 2011-11-04 | 2014-04-02 | 西安航空动力股份有限公司 | Fine adjustment device for positive and negative selecting nozzles for inserts of drip irrigation belts |
| CN105291182A (en) * | 2015-10-30 | 2016-02-03 | 青岛新大成塑料机械有限公司 | Drilling machine used for drop irrigation pipe belt and drop irrigation pipe belt production line |
| CN108056006A (en) * | 2018-01-19 | 2018-05-22 | 天津市华旭盛泰科技有限公司 | A kind of drip irrigation zone and its hot adhesion method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1244444C (en) | 2006-03-08 |
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