CN102205644A - Method for producing plastic pipe fitting and special variable mould thereof - Google Patents
Method for producing plastic pipe fitting and special variable mould thereof Download PDFInfo
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- CN102205644A CN102205644A CN2011100919811A CN201110091981A CN102205644A CN 102205644 A CN102205644 A CN 102205644A CN 2011100919811 A CN2011100919811 A CN 2011100919811A CN 201110091981 A CN201110091981 A CN 201110091981A CN 102205644 A CN102205644 A CN 102205644A
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Abstract
The invention provides a method for producing a plastic pipe fitting and a special variable mould thereof. The mould comprises a rotatable cylinder body, and the cylinder body is formed by stacking and winding sheet-like materials and has an adjustable inner diameter. A lead screw and at least two angle-adjustable fork-shaped brackets are arranged in a cavity of the cylinder body, and two annular sleeves are sleeved on the lead screw, wherein one annular sleeve is movably connected with the lead screw, the other annular sleeve is fixedly connected with the lead screw; the two fork-shaped brackets are symmetrically connected to the two annular sleeves; and the other ends of the two fork-shaped brackets are respectively connected with the cylinder body. The method for producing the plastic pipe fitting, disclosed by the invention, comprises the following steps of: rotating the cylinder body of the variable mould, winding the plastic sheet-like materials around the cylinder body, and obtaining the plastic pipe fitting. According to the method for producing the plastic pipe fitting and the special variable mould thereof, disclosed by the invention, a plurality of plastic fittings can be continuously produced on the variable mould according to production requirements; therefore, the problem that only one specification and type of single pipe fitting can be produced through a traditional injection-molding machine (or a pressing machine) and matched moulds is solved; and the invention has the advantages of high efficiency and low cost.
Description
Technical field
The present invention relates to a kind of method and dedicated variable mould thereof of producing plastic pipe.
Background technology
Along with the develop rapidly of petrochemical industry and the continuous progress of plastic processing, since this century five, the sixties, the all types of plastic product obtains application more and more widely in national product and daily life, wherein quite a few has become the best substitute of traditional material.Plastic pipe is compared with traditional metal tube, pipe of cement, have (only for metal tube 1/6～1/10) in light weight, corrosion-resistant, resistance to water-flow is little (the water delivery energy consumption reduces more than 5%), synthesis energy saving good (make energy consumption and reduce by 75%), easy transportation and installation, long service life advantages such as (30～50 years), therefore is widely used in urban water supply and sewerage, building water supply and drainage, heat supply heating, gas, agricultural irrigation and drainage, chemical industry with managing and numerous areas such as electric wire sleeve pipe.According to Chinese plastic processing TIA message, at present, the annual growth of Chinese plastic pipe has reached 15%, occupy the No. 1 in the world, this has caused industry personage's common concern, and this development speed is gratifying, is indicating the prosperity of huge market capacity and whole industry.Simultaneously in recent years along with the developing rapidly of plastic pipe industry, the kind of plastic pipe also constantly increases.
Traditional plastic pipe is to produce by injection machine (or forcing press) and corresponding mould, and production efficiency is low, the product cost height, injection machine or press equipment have high input, particularly pipe fitting mold input quantity is many, and the pipe fitting of different model and specification needs different moulds, invests huge.
Summary of the invention
The purpose of this invention is to provide a kind of method and dedicated variable mould thereof of producing plastic pipe, utilize described variable mould can high efficiency, produce the plastic pipe of various models and specification at low cost.
A kind of variable mould of producing plastic pipe provided by the invention comprises revolvable cylindrical shell, and described cylindrical shell is superposeed by the sheet material, and winding forms and internal diameter is adjustable.
In the above-mentioned variable mould, be provided with the bow of leading screw and at least two adjustable angle in the chamber of described cylindrical shell, be arranged with two ring sets on the described leading screw, one of them described ring set and described leading screw are for flexibly connecting, another described ring set and described leading screw are for fixedlying connected, and two described bows are connected on two described ring sets symmetrically; The other end of two described bows all is connected with described cylindrical shell.
In the above-mentioned variable mould, described bow can evenly be arranged on the circumferential direction of described leading screw.
In the above-mentioned variable mould, described ring set can be nut.
In the above-mentioned variable mould, the internal diameter of described cylindrical shell can be 100mm-2000mm.
In the above-mentioned variable mould, described cylindrical shell can be the cylinder bodily form.
The present invention also provides a kind of method of producing plastic pipe, comprises the steps: to rotate the cylindrical shell of above-mentioned variable mould, plastic sheet is wrapped in promptly gets described plastic pipe on the described cylindrical shell.
In the above-mentioned method, the raw material of described plastic pipe can be polymer such as polyethylene, polyvinyl chloride or polypropylene, and described plastic sheet can be extrusion sheet or calendered sheet, can be by plastic extruder or plastic calender preparation; The thickness of described plastic sheet can be 1mm-20mm, as 1mm or 20mm.
In the above-mentioned method, the temperature of described plastic sheet can be 80 ℃-200 ℃, as 80 ℃ or 200 ℃.
In the above-mentioned method, the speed of described cylindrical shell rotation can be 0.5 rev/min-10 rev/mins.
Variable mould provided by the invention and the method for producing plastic pipe with this variable mould, can on described variable mould, produce a plurality of plastic pipes (internal diameter and length are all adjustable) continuously according to producing needs, traditional an injection machine (or forcing press) and matching die have been solved, once can only produce the problem of the single pipe fitting of a kind of specification, model, thereby have high efficiency, advantage cheaply.
Description of drawings
Fig. 1 is the structural representation of variable mould of the present invention.
Each mark is as follows among the figure: 1 cylindrical tube, 2 leading screws, 3 bows, 4 handles, 5,6 nuts.
The specific embodiment
Employed experimental technique is conventional method if no special instructions among the following embodiment.
Used material, reagent etc. if no special instructions, all can obtain from commercial channels among the following embodiment.
Embodiment 1, variable mould
Variable mould of the present invention comprises cylindrical tube 1, and it is that 5mm, length are that 10m, girth are that the carbon steel stack of 6.28m is twined and formed (not shown) and internal diameter is adjustable by thickness; This variable mould also comprises the leading screw 2 of the cavity that runs through cylindrical tube 1 and the bow 3 of two adjustable angle, is arranged with 2 nuts 5 and 6 on the leading screw 2, and nut 6 and leading screw 2 are for fixedlying connected; 2 bows 3 are connected on two ring sets 6 and nut 5 upper ring caps symmetrically; The other end of two bows 3 all is connected with cylindrical shell 1; An end of leading screw 2 is provided with handle 4, and handle 4 is located at outside the cylindrical tube 1, is convenient to the rotation of leading screw 2; When leading screw 2 turned clockwise, nut 5 moved to the direction of nut 6, and the angle that drives bow 3 diminishes, and it is big that the internal diameter of this variable mould becomes; Otherwise, when leading screw 2 is rotated counterclockwise, nut 5 to nut 6 away from direction move, the angle that drives bow 3 becomes big, the internal diameter of this variable mould diminishes; The internal diameter of the cylindrical tube 1 in this device can change in 100mm-2000mm, thereby can produce the plastic pipe of different inner diameters.
In the above-mentioned variable mould, the shape of cylindrical tube 1 can be carried out conversion as required; The material of cylindrical tube 1 also can be nonmetal; The quantity of bow 3 can need to be set to a plurality of, and evenly distributes on the circumferential direction of leading screw 2; As required, the length of cylindrical tube 1 can be controlled to be between the 0.1m to 12m, the girth of cylindrical tube 1 is controlled to be between the 0.314m to 6.28m.
The variable mould of embodiment 2, use embodiment 1 produces plastic pipe
By extruding machine raw materials for plastics production polyethylene or polyvinyl chloride or polypropylene are produced extrusion sheet, the thickness of this extrusion sheet is 1mm, and to keep its temperature be 80 ℃; The cylindrical tube 1 of variable mould of rotation embodiment 1 is controlled to be 0.5 rev/min with the rotary speed of cylindrical tube 1, above-mentioned extrusion sheet is wrapped on this cylindrical tube 1 simultaneously; Simultaneously, the pressure rolling mould is pressed on the banded sheet material to improve molding effect and efficient; Obtain the plastic pipe of different inner diameters by the internal diameter of regulating cylindrical tube 1.
The variable mould of embodiment 3, use embodiment 1 is produced plastic pipe
By extruding machine raw materials for plastics production polyethylene, polyvinyl chloride, polypropylene etc. are produced extrusion sheet, the thickness of this extrusion sheet is 20mm, and to keep its temperature be 200 ℃; The cylindrical tube 1 of variable mould of rotation embodiment 1 is controlled to be 10 rev/mins with the rotary speed of cylindrical tube 1, above-mentioned extrusion sheet is wrapped on this cylindrical tube 1 simultaneously; Simultaneously, the pressure rolling mould is pressed on the banded sheet material to improve molding effect and efficient; Obtain the plastic pipe of different inner diameters by the internal diameter of regulating cylindrical tube 1.
Claims (10)
1. variable mould of producing plastic pipe, it is characterized in that: described mould comprises revolvable cylindrical shell, described cylindrical shell by the stack of sheet material twine form and internal diameter adjustable.
2. variable mould according to claim 1, it is characterized in that: the bow that is provided with leading screw and at least two adjustable angle in the chamber of described cylindrical shell, be arranged with two ring sets on the described leading screw, one of them described ring set and described leading screw are for flexibly connecting, another described ring set and described leading screw are for fixedlying connected, and two described bows are connected on two described ring sets symmetrically; The other end of two described bows all is connected with described cylindrical shell.
3. variable mould according to claim 1 and 2 is characterized in that: described bow is evenly arranged on the circumferential direction of described leading screw.
4. according to arbitrary described variable mould among the claim 1-3, it is characterized in that: described ring set is a nut.
5. according to arbitrary described variable mould among the claim 1-4, it is characterized in that: described cylindrical shell is the cylinder bodily form.
6. according to arbitrary described variable mould among the claim 1-5, it is characterized in that: the internal diameter of described cylindrical shell is 100mm-2000mm.
7. method of producing plastic pipe comprises the steps: to rotate the cylindrical shell of arbitrary described variable mould among the claim 1-6, plastic sheet is wrapped in promptly gets described plastic pipe on the described cylindrical shell.
8. method according to claim 7 is characterized in that: described plastic sheet is by plastic extruder or plastic calender preparation; The thickness of described plastic sheet is 1mm-20mm.
9. according to claim 7 or 8 described methods, it is characterized in that: the temperature of described plastic sheet is 80 ℃-200 ℃.
10. according to arbitrary described method among the claim 7-9, it is characterized in that: the speed of described cylindrical shell rotation is 0.5 rev/min-10 rev/mins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100919811A CN102205644A (en) | 2011-04-13 | 2011-04-13 | Method for producing plastic pipe fitting and special variable mould thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100919811A CN102205644A (en) | 2011-04-13 | 2011-04-13 | Method for producing plastic pipe fitting and special variable mould thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102205644A true CN102205644A (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100919811A Pending CN102205644A (en) | 2011-04-13 | 2011-04-13 | Method for producing plastic pipe fitting and special variable mould thereof |
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| CN (1) | CN102205644A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2038112A1 (en) * | 1970-07-31 | 1972-02-10 | Raupach Friedrich | Grp tube - by winding glass fibre sheet on mandrel placing - in centrifugal casting mould and forming tube by centrifugal casting |
| US4867671A (en) * | 1986-10-11 | 1989-09-19 | U.C. Industry Co., Ltd. | Apparatus for manufacturing resin tube |
| JPH10119086A (en) * | 1996-10-21 | 1998-05-12 | Nkk Corp | Winding machine for electric fusion bonded joint |
| JPH11151750A (en) * | 1997-11-21 | 1999-06-08 | Uc Sangyo Kk | Production of hollow coil spring made of synthetic resin |
| CN1593894A (en) * | 2003-09-11 | 2005-03-16 | 天津新科成套仪表有限公司 | Production method of in-out dual purpose gas-liquid conveying hose and solid core rod mould used in production |
| CN1749626A (en) * | 2005-08-26 | 2006-03-22 | 王利群 | Coextruding heat winding structure wall pipe, processing method and method |
| CN2887580Y (en) * | 2005-07-28 | 2007-04-11 | 张永雄 | Multiple-caliber multilayer plastic tube twisting machine |
| CN202129933U (en) * | 2011-04-13 | 2012-02-01 | 苏芳 | Variable mould for producing plastic pipe fittings |
-
2011
- 2011-04-13 CN CN2011100919811A patent/CN102205644A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2038112A1 (en) * | 1970-07-31 | 1972-02-10 | Raupach Friedrich | Grp tube - by winding glass fibre sheet on mandrel placing - in centrifugal casting mould and forming tube by centrifugal casting |
| US4867671A (en) * | 1986-10-11 | 1989-09-19 | U.C. Industry Co., Ltd. | Apparatus for manufacturing resin tube |
| JPH10119086A (en) * | 1996-10-21 | 1998-05-12 | Nkk Corp | Winding machine for electric fusion bonded joint |
| JPH11151750A (en) * | 1997-11-21 | 1999-06-08 | Uc Sangyo Kk | Production of hollow coil spring made of synthetic resin |
| CN1593894A (en) * | 2003-09-11 | 2005-03-16 | 天津新科成套仪表有限公司 | Production method of in-out dual purpose gas-liquid conveying hose and solid core rod mould used in production |
| CN2887580Y (en) * | 2005-07-28 | 2007-04-11 | 张永雄 | Multiple-caliber multilayer plastic tube twisting machine |
| CN1749626A (en) * | 2005-08-26 | 2006-03-22 | 王利群 | Coextruding heat winding structure wall pipe, processing method and method |
| CN202129933U (en) * | 2011-04-13 | 2012-02-01 | 苏芳 | Variable mould for producing plastic pipe fittings |
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Application publication date: 20111005 |