CN203622873U - TPU (thermoplastic polyurethane)-EVOH (ethylene vinyl alcohol) three-layer co-extrusion pipe production equipment - Google Patents
TPU (thermoplastic polyurethane)-EVOH (ethylene vinyl alcohol) three-layer co-extrusion pipe production equipment Download PDFInfo
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- CN203622873U CN203622873U CN201320880491.4U CN201320880491U CN203622873U CN 203622873 U CN203622873 U CN 203622873U CN 201320880491 U CN201320880491 U CN 201320880491U CN 203622873 U CN203622873 U CN 203622873U
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Abstract
The utility model discloses TPU (thermoplastic polyurethane)-EVOH (ethylene vinyl alcohol) three-layer co-extrusion pipe production equipment. The equipment comprises a TPU co-extrusion die, a TPU extruder connected with the TPU co-extrusion die, an EVOH extruder, an adhesive extruder, a molding device which is positioned on the same axle line with the TPU co-extrusion die, a cooling device and a traction device, wherein the TPU co-extrusion die comprises a main runner and a plurality of branch runners which are branched from the main runner; and the main runner and the branch runners are of semi-circular spiral ring structures. The TPU and EVOH three-layer co-extrusion pipe production equipment is smooth in molding, can eliminate the phenomena of accumulation, carbonization and the like, and can improve the equipment production efficiency and the three-layer co-extrusion pipeline quality.
Description
Technical field
The utility model relates to the technical field of multi-layer co-extruded tubing production equipment, more specifically, relates to the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH.
Background technology
TPU+EVOH tubing is generally used for medical pipe, food with managing, industrial equipment, dolly rail.TPU material belongs to thermoplasticity, approaches the material of rubber-like, moulding difficulty, and complex process, needs the temperature stability of mould very high.At present, the mould of traditional mode of production TPU multi-layered composite pipe adopts the trapezoidal runner of single-screw, and screw channel is deep, causes buildup, expects easy carbonization, and Design of Dies is larger, and the elevating control of temperature is more difficult, and die pressure is inadequate; So the material of the TPU that traditional production equipment is produced is extruded as water, be difficult to all kinds of tubing of moulding.
Utility model content
Technical problem to be solved in the utility model is to provide the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH, controls and poor quality's problem when die pressure causes not TPU manufacture of materials to be extruded the temperature of material is difficult to solve traditional co-extruding mould.
In order to overcome the deficiencies in the prior art, the utility model adopts following technical scheme:
The three-layer co-extruded tubing production equipment of a kind of TPU+EVOH, the TPU extruder, EVOH extruder and the glue extruder that comprise TPU co-extruding mould, be connected with TPU co-extruding mould, be positioned at shaped device, cooling device and the draw-gear on same axis with TPU co-extruding mould, described TPU co-extruding mould comprises sprue and separates some runners by sprue, and described master, runner is semi-circular helical ring structure.
The utility model is difficult to regulation and control for prior art co-extruding mould runner temperature, pressure and causes the tubing of producing to exist the bad problem of quality to provide a kind of temperature and pressure all can keep stable flow passage structure, separate many semi-circular helical flow paths and the more shallow difficult generation buildup of spiral groove depth by sprue, make stream material progressively disperse melt pearlite material, progressively evenly extrusion molding, and the pressure of this mould structure can remain on the thermoplastic elastic material of 15-30Mpa and extrude scope, the stable drawing and setting of TPU material that makes of temperature, pressure is better; In addition adopt semi-circular helical flow path to there will not be flex point and dead point, cause melt carbonization thereby can not cause buildup to produce.
Described sprue and runner are positioned at same plane, and the structure that sprue separates runner is for being divided into two, and two are divided into four flow dividing structure.
Described TPU co-extruding mould comprises a conveyor screw, and sprue separates the structure of runner for to be circumference one-to-two along conveyor screw, two be divided into four 2
nflow dividing structure.
Above-mentioned flow dividing structure can be adjusted according to actual production demand the number of runner, adopting this flow passage structure stream material melt to be radial flows forward along runner, after multi-layer flow channels, speed and pressure all present stability, finally converge in three layers or multilayer outlet junction to form binder course and extrude high-quality shaping pipe.
Described EVOH extruder and glue extruder are by driven by servomotor, and described TPU extruder screw intermediate compression section is two-flight screw.
EVOH extruder of the present utility model and glue extruder can make melt extrusion stable by driven by servomotor, and it is two-flight screw plasticizing and mixing TPU material that TPU extruder adopts intermediate compression section, prevents buildup and imitation frosted glass in screw rod.
Described shaped device comprises vacuum tank, and described vacuum tank is located at TPU co-extruding mould front end and is positioned at same central axis with it.
Described vacuum tank is divided into two sections, is respectively 1 meter of vacuum chamber and 5 meters of water logging casees, before 1 meter of vacuum chamber is located at 5 meters of water logging casees and near TPU co-extruding mould.
Described cooling device comprises water box and immersion type tank, and described water box is located at 1 meter of vacuum chamber front end face of vacuum tank, and described immersion type tank is located at after 5 meters of water logging casees of vacuum tank.
Described water box has also connected a dripping device, and described dripping device is located at vacuum tank one side.
Described draw-gear is located at immersion type tank one side, comprises high-speed tractor and servomotor, and described high-speed tractor is by driven by servomotor.
Described high-speed tractor adopts the transmission of curved tooth miter gear.
Compared with prior art, the beneficial effect the utlity model has:
1. adopt semi-circular helical ring 2
nflow dividing structure can make the temperature and pressure of co-extruding mould constant, makes the mobile even good forming effect of stream material;
2. the high-speed tractor that has adopted the transmission of curved tooth miter gear, stable drive is not jumped tooth, makes the three-layer co-extruded tube forming of TPU steady;
3.TPU extruder screw intermediate compression section is that two-flight screw has been eliminated the phenomenon such as buildup and carbonization, and linear velocity reaches 60 m/min, has improved production efficiency and three-layer co-extruded pipe workpiece quality.
Accompanying drawing explanation
Fig. 1 is the three-layer co-extruded tubing production equipment of the utility model TPU+EVOH front view;
Fig. 2 is the three-layer co-extruded tubing production equipment of the utility model TPU+EVOH top view;
Fig. 3 is the structural representation of co-extruding mould runner.
In figure: 1.TPU extruder; 2.EVOH extruder; 3. glue extruder; 4.TPU co-extruding mould; 5. water box; 6. the mechanism of dripping; 7. 1 meter of vacuum chamber of vacuum tank; 8. 5 meters of water logging casees of vacuum tank; 9. immersion type tank; 10. high-speed tractor; 11. feeding mouths; 12. discharging openings.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As depicted in figs. 1 and 2, the three-layer co-extruded tubing production equipment of TPU+EVOH, comprise TPU co-extruding mould 4, the TPU extruder 1 being connected with TPU co-extruding mould 4, EVOH extruder 2 and glue extruder 3, be positioned at the vacuum tank on same axis with TPU co-extruding mould 4, immersion type tank 9 and hauling machine 10, vacuum tank is divided into two sections, be respectively 1 meter of vacuum chamber 7 of vacuum tank and 5 meters of water logging casees 8 of vacuum tank, before 1 meter of vacuum chamber 7 of vacuum tank is located at 5 meters of water logging casees of vacuum tank 8 and near TPU co-extruding mould 4, water box 5 is arranged on 1 meter of vacuum chamber front end face of vacuum tank, the mechanism 6 of dripping is arranged on 1 meter of vacuum chamber 7 one side of vacuum tank, immersion type tank 9 is arranged on vacuum tank rear portion, and hauling machine 10 is arranged on immersion type tank 9 rear portions.
As Fig. 3, described TPU co-extruding mould 4, comprise sprue and separate some runners by sprue, described master, runner is semi-circular helical ring structure, described sprue and runner are positioned at same plane, and sprue separates the structure of runner for being divided into two, and two are divided into four flow dividing structure.In Fig. 2, omit last four runners and converged the diagram part that connects discharging opening in junction.
In like manner known, three-dimensional semi-circular helical ring 2
nflow dividing structure: described TPU co-extruding mould 4 comprises a conveyor screw, sprue separates the structure of runner for to be circumference one-to-two along conveyor screw, and two are divided into four flow dividing structure.
The utility model is as follows for the operation principle of the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH:
TPU and EVOH material are extruded from co-extruding mould mouth, hot flexible pipe is introduced into water box 5, and to carry out the initial stage cooling, the mechanism 6 feedwater box 5 that constantly supplies water that drips, makes water box keep cooling recirculated water, and the TPU pipe of moulding enters the moulding of calibration sleeve vacuum cooled a little, along with the traction of tractive force, enter in 1 meter of vacuum chamber 7 of vacuum tank, vacuum forming is cooling, after TPU+EVOH Pipe forming, enter 5 meters of water logging casees 8 of vacuum tank, rapid cooling pipe; It is cooling that while TPU+EVOH tubing enters immersion type tank 9, and high efficiency cooling tank guarantees that co-extruding tube material forming reaches 60m/min; Adopt the transmission of curved tooth miter gear not jump tooth and servo motor transmission at high-speed tractor 10, hauling speed is steady, and hauling speed is up to 100m/min; This three-layer co-extruded equipment has guaranteed the stable moulding of the three-layer co-extruded tubing of TPU+EVOH.
Claims (10)
1. the three-layer co-extruded tubing production equipment of TPU+EVOH, the TPU extruder, EVOH extruder and the glue extruder that comprise TPU co-extruding mould, be connected with TPU co-extruding mould, be positioned at shaped device, cooling device and the draw-gear on same axis with TPU co-extruding mould, it is characterized in that, described TPU co-extruding mould comprises sprue and separates some runners by sprue, and described master, runner is semi-circular helical ring structure.
2. the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH according to claim 1, is characterized in that, described sprue and runner are positioned at same plane, and the structure that sprue separates runner is for being divided into two, two be divided into four 2
nflow dividing structure.
3. the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH according to claim 1, is characterized in that, described TPU co-extruding mould comprises a conveyor screw, and sprue separates the structure of runner for to be circumference one-to-two along conveyor screw, two be divided into four 2
nflow dividing structure.
4. the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH according to claim 1, is characterized in that, described EVOH extruder and glue extruder are by driven by servomotor, and described TPU extruder screw intermediate compression section is two-flight screw.
5. the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH according to claim 1, is characterized in that, described shaped device comprises vacuum tank, and described vacuum tank is located at TPU co-extruding mould front end and is positioned at same central axis with it.
6. the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH according to claim 5, is characterized in that, described vacuum tank is divided into two sections, is respectively 1 meter of vacuum chamber and 5 meters of water logging casees, before 1 meter of vacuum chamber is located at 5 meters of water logging casees and near TPU co-extruding mould.
7. the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH according to claim 1, it is characterized in that, described cooling device comprises water box and immersion type tank, described water box is located at 1 meter of vacuum chamber front end face of vacuum tank, and described immersion type tank is located at after 5 meters of water logging casees of vacuum tank.
8. the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH according to claim 7, is characterized in that, described water box has also connected a dripping device, and described dripping device is located at vacuum tank one side.
9. the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH according to claim 7, is characterized in that, described draw-gear is located at immersion type tank one side, comprises high-speed tractor and servomotor, and described high-speed tractor is by driven by servomotor.
10. the three-layer co-extruded tubing production equipment of a kind of TPU+EVOH according to claim 9, is characterized in that, described high-speed tractor adopts the transmission of curved tooth miter gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880491.4U CN203622873U (en) | 2013-12-30 | 2013-12-30 | TPU (thermoplastic polyurethane)-EVOH (ethylene vinyl alcohol) three-layer co-extrusion pipe production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880491.4U CN203622873U (en) | 2013-12-30 | 2013-12-30 | TPU (thermoplastic polyurethane)-EVOH (ethylene vinyl alcohol) three-layer co-extrusion pipe production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203622873U true CN203622873U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320880491.4U Expired - Fee Related CN203622873U (en) | 2013-12-30 | 2013-12-30 | TPU (thermoplastic polyurethane)-EVOH (ethylene vinyl alcohol) three-layer co-extrusion pipe production equipment |
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| CN (1) | CN203622873U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109795092A (en) * | 2019-04-03 | 2019-05-24 | 广州市程翔机械有限公司 | A kind of low-penetration fuel pipe extrusion production equipment |
| CN109795091A (en) * | 2019-04-03 | 2019-05-24 | 广州市程翔机械有限公司 | A kind of Fluoroplastic extruder |
| CN110341162A (en) * | 2019-07-26 | 2019-10-18 | 金贵建 | A kind of novel extrusion molding die |
| US11175435B1 (en) | 2019-09-10 | 2021-11-16 | Facebook Technologies, Llc | Multilayer optical barrier |
| US11885983B1 (en) | 2020-01-08 | 2024-01-30 | Meta Platforms Technologies, Llc | Coated multilayer optical barrier |
-
2013
- 2013-12-30 CN CN201320880491.4U patent/CN203622873U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109795092A (en) * | 2019-04-03 | 2019-05-24 | 广州市程翔机械有限公司 | A kind of low-penetration fuel pipe extrusion production equipment |
| CN109795091A (en) * | 2019-04-03 | 2019-05-24 | 广州市程翔机械有限公司 | A kind of Fluoroplastic extruder |
| CN110341162A (en) * | 2019-07-26 | 2019-10-18 | 金贵建 | A kind of novel extrusion molding die |
| US11175435B1 (en) | 2019-09-10 | 2021-11-16 | Facebook Technologies, Llc | Multilayer optical barrier |
| US11598906B1 (en) | 2019-09-10 | 2023-03-07 | Meta Platforms Technologies, Llc | Multilayer optical barrier |
| US11885982B1 (en) | 2019-09-10 | 2024-01-30 | Meta Platforms Technologies, Llc | Multilayer optical barrier |
| US11885983B1 (en) | 2020-01-08 | 2024-01-30 | Meta Platforms Technologies, Llc | Coated multilayer optical barrier |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20211230 |