CN102211406B - Positive-pressure expanding machine for heat-shrinkable pipe - Google Patents
Positive-pressure expanding machine for heat-shrinkable pipe Download PDFInfo
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- CN102211406B CN102211406B CN 201110142483 CN201110142483A CN102211406B CN 102211406 B CN102211406 B CN 102211406B CN 201110142483 CN201110142483 CN 201110142483 CN 201110142483 A CN201110142483 A CN 201110142483A CN 102211406 B CN102211406 B CN 102211406B
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Abstract
The invention provides a positive-pressure expanding machine for a heat-shrinkable pipe. The positive-pressure expanding machine is composed of a heater, a heater connecting piece, a gas sealing plate, a gap adjuster, a die jacket, a die sizing pipe and a locking nut, wherein the heater and the heater connecting piece are welded together, the gas sealing plate is arranged on the heater connecting piece, the die sizing pipe is arranged in the die jacket through the locking nut, the die jacket is connected with the heater connecting piece through the gap adjuster, and a gap is arranged between the gas sealing plate and the die sizing pipe and can be adjusted through the gap adjuster, the adjusting range is between 0.5mm and 4mm, the gap adjuster is provided with a venting hole which is communicated with the gap between the gas sealing plate and the die sizing pipe, and the diameter of the venting hole is larger than 2mm. The positive-pressure expanding machine for the heat-shrinkable pipe, provided by the invention, has the advantages of smoothness in gas discharge, uniform wall thickness and low wall deflection rate.
Description
Technical field
The present invention relates to a kind of expansion machine of thermal shrinkage pipe material.
Background technology
During the expansion of heat-shrinkable tube malleation, pipe heats in heater and is heated before expanding, pressure is all arranged in the pipe of pipe and outside the pipe before the expansion, the effect of pipe internal pressure is to be in control expansion before making expansion, the effect of pipe external pressure is that pipe produces expansion before preventing from expanding in heater, after pipe left heater and gas sealing plate before expanding, after the outer pressure of pipe will be drained, pipe could obtain expansion before expanding under the effect of pipe internal pressure.Existing heat-shrinkable tube malleation expansion technique, be to punch at the mould sizing tube, so that the pressure that discharge pipe is outer, because the hole on the mould sizing tube can't accomplish that continuously therefore porose local exhaust is smooth and easy, expansion easily, the local exhaust problem of atresia is not easy expansion, causes the wall unevenness of heat-shrink tube even, partially the wall rate reaches more than 35%, can not satisfy inclined to one side wall rate and be less than 30% regulation.
Summary of the invention
The technical problem to be solved in the present invention is: overcome existing heat-shrink tube malleation dilator exhaust smooth and easy even, the high defective of wall rate partially of wall unevenness that causes inadequately, propose that a kind of exhaust is smooth and easy, wall thickness evenly, the low heat-shrink tube malleation dilator of wall rate partially.
In order to solve the problems of the technologies described above, the present invention proposes following technical scheme: a kind of heat-shrink tube malleation dilator, by heater, the heater connector, gas sealing plate, clearance adjuster, die coat, mould sizing tube and locking nut constitute, wherein heater and heater connector weld together, gas sealing plate is installed on the heater connector, the mould sizing tube is installed in the die coat by locking nut, die coat links to each other by clearance adjuster with the heater connector, there is the gap between gas sealing plate and the mould sizing tube, and this gap can be regulated by clearance adjuster, and adjustable range is that 0.5mm is to 4mm; Steam vent is arranged on the clearance adjuster, and the gap that exists between this steam vent and gas sealing plate and the mould sizing tube communicates, and the diameter of this steam vent is greater than 2mm.
The further restriction of technique scheme is that the heat medium of this heater is air or glycerine.
The further restriction of technique scheme is that described mould sizing tube is by bronze or brass manufacturing.
The further restriction of technique scheme is that an inlet opening and an apopore are arranged on the described die coat.
The further restriction of technique scheme is, after described mould sizing tube is installed in the die coat by locking nut, and good seal between mould sizing tube and the die coat.
The present invention has following beneficial effect: have the gap between the gas sealing plate of heat-shrink tube malleation dilator and the mould sizing tube, pipe before expanding (tubing before the expansion) leaves gas sealing plate and enters later on before the mould sizing tube, the outer pressure of its pipe is discharged to steam vent by the gap between gas sealing plate and the mould sizing tube, discharged by steam vent again, therefore the equal exhaust of the circumferencial direction of pipe is smooth and easy before expansion, and the inclined to one side wall rate of heat-shrink tube is less than 25%.The size in this gap can be regulated by clearance adjuster, prevents that the gap is too little, and exhaust is insufficient, and heat-shrink tube can't be expanded, and the gap is too big, and the preceding enlargement of pipe of expansion is excessive, can't enter mould sizing tube expansion sizing.
Description of drawings
Fig. 1 is the cutaway view of heat-shrink tube malleation dilator of the present invention.
The specific embodiment
See also Fig. 1, the present invention proposes a kind of heat-shrink tube malleation dilator, and it comprises a heater 1, a heater connector 2, a gas sealing plate 3, a die coat 4, a mould sizing tube 5, a locking nut 6, a clearance adjuster 7.
The heat medium of this heater 1 is air or glycerine.
This heater connector 2 is welded on the rear end of heater 1.
The central authorities of this heater connector 2 offer a perforation 22.Offer some external screw thread (not shown) on the sidewall of this heater connector 2.
Offer some screws (not label) and an envelope pore 34 on this gas sealing plate 3.
Be arranged in this heater connector 2 after passing these some screws with several bolts 36, then this gas sealing plate 3 be installed on this heater connector 2.
22 sealings of should boring a hole of this gas sealing plate 3 only leave this envelope pore 34 and can allow gas flow out.
Offer an inlet opening 42 and an apopore 44 on this die coat 4.
Cooling water enters the die coat 4 from this inlet opening 42, flows out from apopore 44.
This mould sizing tube 5 is installed in this die coat 4.
Described mould sizing tube 5 is by bronze or brass manufacturing.
This locking nut 6 is screwed onto the rear end of this mould sizing tube 5, and this locking nut 6 pushes against on this die coat 4, thereby this mould sizing tube 5 tightly is locked in this die coat 4.
After described mould sizing tube 5 is installed in the die coat 4 by locking nut 6, good seal between mould sizing tube 5 and the die coat 4.
Offer some steam vents 742 on this clearance adjuster 7.The diameter of described steam vent 742 is greater than 2mm.
Offer some internal thread (not shown) on this clearance adjuster 7.The external screw thread of this internal thread and this heater connector 2 is complementary.
This die coat 4 is plugged in this clearance adjuster 7 inside.
By being threaded of external screw thread and internal thread, tube 74 then will being installed being installed on the sidewall of this heater connector 2, thereby this clearance adjuster 7 and heater connector 2 will be coupled together.
Between this gas sealing plate 3 and mould sizing tube 5, form a gap, can transfer above-mentioned gap greatly or turn down by regulating this clearance adjuster 7.This gap length is that 0.5mm is to 4mm.
During work, tubing before the expansion (calling " pipe before expanding " in the following text) is by this heater 1 and heater connector 2, come out from this envelope pore 34, by the gap between gas sealing plate 3 and the mould sizing tube 5, at this moment, air is discharged from steam vent 742, the interior pressure of pipe is greater than external pressure before expanding, and pipe begins to expand and enter in this mould sizing tube 5 before this expansion, is pasting mould sizing tube 5 and is moving, come out from mould sizing tube 5 at last, tubing just expansion is good.
Heat-shrink tube malleation dilator of the present invention, has following beneficial effect: have the gap between the gas sealing plate 34 of heat-shrink tube malleation dilator and the mould sizing tube 5, after leaving gas sealing plate 34, pipe before expanding (tubing before the expansion) enters before the mould sizing tube 5, the outer pressure of its pipe is discharged to steam vent 742 by the gap between gas sealing plate 34 and the mould sizing tube 5, discharged by steam vent 742 again, therefore the equal exhaust of the circumferencial direction of pipe is smooth and easy before expansion, and the inclined to one side wall rate of heat-shrink tube is less than 25%.The size in this gap can be regulated by clearance adjuster 7, prevents that the gap is too little, and exhaust is insufficient, and heat-shrink tube can't be expanded, and the gap is too big, and the preceding enlargement of pipe of expansion is excessive, can't enter mould sizing tube 5 expansion sizings.
Claims (5)
1. heat-shrink tube malleation dilator, by heater, the heater connector, gas sealing plate, clearance adjuster, die coat, mould sizing tube and locking nut constitute, wherein heater and heater connector weld together, gas sealing plate is installed on the heater connector, the mould sizing tube is installed in the die coat by locking nut, die coat links to each other by clearance adjuster with the heater connector, it is characterized in that: have the gap between gas sealing plate and the mould sizing tube, and this gap can be regulated by clearance adjuster, and adjustable range is that 0.5mm is to 4mm; Steam vent is arranged on the clearance adjuster, and the gap that exists between this steam vent and gas sealing plate and the mould sizing tube communicates, and the diameter of this steam vent is greater than 2mm.
2. heat-shrink tube malleation dilator according to claim 1 is characterized in that, the heat medium of this heater is air or glycerine.
3. heat-shrink tube malleation dilator according to claim 1 is characterized in that, described mould sizing tube is by bronze or brass manufacturing.
4. heat-shrink tube malleation dilator according to claim 1 is characterized in that, an inlet opening and an apopore are arranged on the described die coat.
5. heat-shrink tube malleation dilator according to claim 1 is characterized in that, after described mould sizing tube is installed in the die coat by locking nut, and good seal between mould sizing tube and the die coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110142483 CN102211406B (en) | 2011-05-30 | 2011-05-30 | Positive-pressure expanding machine for heat-shrinkable pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110142483 CN102211406B (en) | 2011-05-30 | 2011-05-30 | Positive-pressure expanding machine for heat-shrinkable pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102211406A CN102211406A (en) | 2011-10-12 |
| CN102211406B true CN102211406B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110142483 Active CN102211406B (en) | 2011-05-30 | 2011-05-30 | Positive-pressure expanding machine for heat-shrinkable pipe |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034341B (en) * | 2015-07-01 | 2018-07-17 | 深圳市智豪特材科技有限公司 | The heat-shrink tube positive pressure enlarging device of heat-shrink tube clamp mechanism and the application clamp mechanism |
| CN106217842B (en) * | 2016-07-22 | 2018-10-26 | 深圳市智豪特材科技有限公司 | A method of expanding heat-shrink tube without discharge continuous segment |
| CN106217843B (en) * | 2016-07-22 | 2018-10-26 | 深圳市智豪特材科技有限公司 | A kind of contactless heat-shrink tube segment expansion device of heat source |
| CN111745946A (en) * | 2020-06-03 | 2020-10-09 | 上海核工程研究设计院有限公司 | Small-caliber thick-wall heat-shrinkable tube expanding die and expanding system thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1199363A (en) * | 1995-08-18 | 1998-11-18 | 温尼德斯制管商有限公司 | Control method for manufacture of oriented plastics tubes |
| JP2000006236A (en) * | 1998-06-29 | 2000-01-11 | Mitsubishi Chemicals Corp | Thermoplastic resin stretched pipe with socket |
| CN101327645A (en) * | 2008-07-15 | 2008-12-24 | 深圳长园电子材料有限公司 | Device for expanding thermal shrinkage tube |
| JP2008307823A (en) * | 2007-06-15 | 2008-12-25 | Sumitomo Electric Fine Polymer Inc | Heat shrinkable tube manufacturing method and manufacturing apparatus |
-
2011
- 2011-05-30 CN CN 201110142483 patent/CN102211406B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1199363A (en) * | 1995-08-18 | 1998-11-18 | 温尼德斯制管商有限公司 | Control method for manufacture of oriented plastics tubes |
| JP2000006236A (en) * | 1998-06-29 | 2000-01-11 | Mitsubishi Chemicals Corp | Thermoplastic resin stretched pipe with socket |
| JP2008307823A (en) * | 2007-06-15 | 2008-12-25 | Sumitomo Electric Fine Polymer Inc | Heat shrinkable tube manufacturing method and manufacturing apparatus |
| CN101327645A (en) * | 2008-07-15 | 2008-12-24 | 深圳长园电子材料有限公司 | Device for expanding thermal shrinkage tube |
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| CN102211406A (en) | 2011-10-12 |
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Effective date of registration: 20180329 Address after: Nanshan District high tech Zone Guangdong streets Keyuan Road Changyuan new material Shenzhen port of Guangdong province 518000 city 5 floor of Building 2 Patentee after: Changyuan electronic (Group) Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District science and Technology Park Keyuan Road Changyuan new material in Hong Kong Patentee before: ChangYuan Group Ltd. |