CN102079132A - Positive pressure continuous expanding method and device of heat shrinkable pipe - Google Patents
Positive pressure continuous expanding method and device of heat shrinkable pipe Download PDFInfo
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- CN102079132A CN102079132A CN2009101884047A CN200910188404A CN102079132A CN 102079132 A CN102079132 A CN 102079132A CN 2009101884047 A CN2009101884047 A CN 2009101884047A CN 200910188404 A CN200910188404 A CN 200910188404A CN 102079132 A CN102079132 A CN 102079132A
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Abstract
The invention discloses a positive pressure continuous expanding device of a heat shrinkable pipe, which comprises pipe conveying equipment (10), pressure maintained heating equipment (20), a pipe expanding mould (30), cooling equipment (60), heat shrinkable pipe dragging and sealing equipment (40) and a pressure air conveying equipment (50) which are arrayed in sequence; an air inlet pipe is arranged at one end of the heat shrinkable pipe; the other end of the heat shrinkable pipe is connected to the heat shrinkable pipe dragging and sealing equipment after passing through the pressure maintained heating equipment and the pipe expanding mould and is well sealed; pressure air is injected to a heat shrinkable pipe to be expanded; and the heat shrinkable pipe dragging and sealing equipment enables the heat shrinkable pipe to be successively subjected to heating and pipe expanding operations. A positive pressure continuous expanding technology of a heat shrinkable pipe, provided by the invention, is applied to expanding pipe products in the heat shrinkable material industry, and a pipe is expanded to the required size and molded by utilizing compressed air through changing a traditional expanding principle, thereby the problem of incapability of realizing continuous expansion of pipes with high multiples and large thicknesses of pipe walls by utilizing the traditional expanding technology in China is solved, and the production efficiency is greatly increased.
Description
Technical field
The present invention relates to materials processing technology, particularly the method and apparatus of expanding thermal shrinkage tube.
Background technology
The present domestic thermal shrinkage pipe material expansion mode of production has: the one, and continuous negative pressure expansion pattern (as shown in Figure 1): this expansion pattern is to adopt to inhale vacuum in dilatation mold, cause negative pressure, thereby make expanding thermal shrinkage tube, thick-walled pipe expansion during this method can not solve, can not solve the high multiple product augmentation more than 2.5 times, and efficient is low, and is also uneconomical.The 2nd, segmented cloth bag expansion (as shown in Figure 2): this expansion pattern is to add one section cloth bag at the heat-shrink tube inner chamber, and the cloth bag aerating makes expanding thermal shrinkage tube, and this method then can not realize continuous expansion, can't satisfy the long continuously order requirements of client.
Summary of the invention
The invention provides continuous expansion method of a kind of heat-shrink tube malleation and device, employing directly adds pressure air at the heat-shrink tube inner chamber, realize the purpose of expanding thermal shrinkage tube, solve the technical problem that can not realize continuous expansion, the expansion of high multiple and thick-walled pipe expansion in the prior art.
The present invention comprises tubing conveying equipment, pressurize firing equipment, expander mould, cooling device and the heat-shrink tube traction water-tight equipment that is arranged in order for the continuous extension fixture of a kind of heat-shrink tube malleation that provides is provided, also comprise the pressure air conveying equipment, intending the heat-shrink tube of expansion is exported by the tubing conveying equipment, through being connected heat-shrink tube traction water-tight equipment behind pressurize firing equipment, expander mould and the cooling device, described pressure air conveying equipment is communicated with an end and the sealing of intending the expanding thermal shrinkage tube cavity.The continuous expansion method of this heat-shrink tube malleation may further comprise the steps:
A. at first be installed into feed channel at an end of heat-shrink tube;
B. the other end of heat-shrink tube is connected on the heat-shrink tube traction water-tight equipment after through pressurize firing equipment and expander mould, and carries out the sealing of an other end;
C. pressure air is injected the heat-shrink tube of intending expansion, and be in barotropic state in the maintenance heat-shrink tube, start pressurize firing equipment, expander mould and heat-shrink tube traction water-tight equipment, heat-shrink tube traction water-tight equipment successively heats and the expander operation heat-shrink tube.
Described heat-shrink tube traction water-tight equipment is for rolling pulling equipment, this roll pulling equipment comprise column rod face on roll rod, roll rod and drive and to roll rod or to roll the driving mechanism that rod rotates down down, the upper and lower roller of heat-shrink tube traction water-tight equipment rolls and pulls the heat-shrink tube motion; The mode of air duct in the sealed tube when sealing of described heat-shrink tube adopts the upper and lower roller of heat-shrink tube traction water-tight equipment to roll heat-shrink tube rolls the twice that rod and following gap of rolling between the rod rod face are not more than the heat-shrink tube pipe thickness on therefore.
Heating process described in the step C adopts the pressurize heating means, and the pressure and the heat-shrink tube inner air pressure that are applied in the pressurize firing equipment on the heat-shrink tube outer wall balance each other, and is provided with the pressure adjustmenting mechanism of adjusting pressurize firing equipment internal pressure at the pressurize firing equipment.Described pressurize firing equipment is oily pressurize firing equipment or electric pressurize firing equipment; Described cooling device is air-cooled or water cooling equipment.
The continuous malleation expansion technique of heat-shrink tube of the present invention is applied to the expansion of material contracting with heat industry pipe material product, by changing traditional extension Principle, utilize compressed air that tubing is propelled the price of and require size and typing, solved the continuous expansion that domestic present utilization tradition expansion technique can't reach high multiple thick-wall tube.Improved production efficiency greatly.Thereby the practicality and the economic worth of this technology have been embodied.
Description of drawings
Fig. 1 is the schematic diagram of prior art negative pressure expansion.
Fig. 2 is the schematic diagram of prior art cloth bag expansion.
Fig. 3 is the heat-shrink tube malleation of the present invention schematic diagram of expansion continuously.
The specific embodiment
In conjunction with above-mentioned accompanying drawing 3, describe specific embodiments of the invention in detail.
The continuous extension fixture of this heat-shrink tube malleation comprises tubing conveying equipment 10, pressurize firing equipment 20, expander mould 30, cooling device 60 and the heat-shrink tube traction water-tight equipment 40 that is arranged in order, also comprise pressure air conveying equipment 50, its expansion method is: at first at the admission line of the end setting pressure air conveyance devices 50 of heat-shrink tube G; The other end of heat-shrink tube is connected on the heat-shrink tube traction water-tight equipment after through pressurize firing equipment and expander mould, and carries out the sealing of the other end of heat-shrink tube; Pressure air is injected the heat-shrink tube of intending expansion, and keep being in barotropic state in the heat-shrink tube, start pressurize firing equipment, expander mould and heat-shrink tube traction water-tight equipment, heat-shrink tube traction water-tight equipment successively heats and the expander operation heat-shrink tube.Also have refrigerating work procedure after the expander operation, this step adopts cooling device that the heat-shrink tube behind expander mould expander is cooled off; Described cooling device 60 is air-cooled or water cooling equipment.
The continuous malleation expansion technique of heat-shrink tube of the present invention has solved the technological difficulties that present expansion technique cann't be solved:
This new continuous malleation expansion technique of heat-shrink tube has realized middle thick-walled pipe expansion production continuously.
1. the present invention has realized 4-5 times even higher multiple product augmentation.
2. rate of expansion of the present invention promotes greatly, and efficient is 2-3 times of conventional art.
3. the present invention and traditional expansion technique data comparison diagram are as follows:
| Sequence number | Expansion pattern | The expansion multiple | The expansion continuity | Rate of expansion |
| 01 | The first month of the lunar year, companding was opened | 2-6 doubly | Can | 2-6 rice/minute |
| 02 | The negative pressure expansion | 2-3 doubly | Can | 0.5-2 rice/minute |
| 03 | The cloth bag expansion | 2-4 doubly | Cannot | 1 meter/minute of ∠ |
Above-mentioned heat-shrink tube traction water-tight equipment 40 adopts and rolls pulling equipment, this roll pulling equipment comprise column rod face on roll rod 41, roll rod 42 and drive and to roll rod or to roll the driving mechanism that rod rotates down down, the upper and lower roller of heat-shrink tube traction water-tight equipment rolls and pulls the heat-shrink tube motion; Simultaneously, on roll rod and roll down the twice that gap between the rod rod face is not more than the heat-shrink tube pipe thickness, upper and lower roller has sealed air duct in the heat-shrink tube when rolling heat-shrink tube, an other end of heat-shrink tube is closed, like this, in heat-shrink tube, formed the air cavity of a sealing, heat-shrink tube is expanded under the internal positive pressure effect, be attached to until the pyrocondensation tube wall till the inwall of dilatation mold, this malleation expansion pattern can the original pipe thickness of heat-shrink tube, intend the parameter adjustment pipe internal pressures such as multiple of expansion, reaches desirable expansion effect.Simultaneously, also more smooth-going in order to make in the heat-shrink tube transmission course, in transmission course, can not produce tangible distortion, after expanding thermal shrinkage tube equipment, can also increase auxiliary hitch 43 and 44.
For keeping heat-shrink tube to be unlikely to distortion in heating process, described heating process adopts the pressurize heating means, the pressure and the heat-shrink tube inner air pressure that are applied in the pressurize firing equipment on the heat-shrink tube outer wall balance each other, be provided with the pressure adjustmenting mechanism of adjusting pressurize firing equipment 20 internal pressures at pressurize firing equipment 20, described pressurize firing equipment 20 can be held oily pressurize firing equipment or electric pressurize firing equipment.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. continuous expansion method of heat-shrink tube malleation, it is characterized in that: this method may further comprise the steps:
A. at first be installed into feed channel at an end of heat-shrink tube;
B. the other end of heat-shrink tube is connected on the heat-shrink tube traction water-tight equipment after through pressurize firing equipment and expander mould, and carries out the sealing of an other end;
C. pressure air is injected the heat-shrink tube of intending expansion, and be in barotropic state in the maintenance heat-shrink tube, start pressurize firing equipment, expander mould and heat-shrink tube traction water-tight equipment, heat-shrink tube traction water-tight equipment successively heats and the expander operation heat-shrink tube.
2. according to the continuous expansion method of the described heat-shrink tube malleation of claim 1, it is characterized in that: the heat-shrink tube traction water-tight equipment described in the step B adopts and rolls pulling equipment, and the upper and lower roller of heat-shrink tube traction water-tight equipment rolls and pulls the heat-shrink tube motion; The mode of air duct in the sealed tube when sealing of described heat-shrink tube adopts the upper and lower roller of heat-shrink tube traction water-tight equipment to roll heat-shrink tube.
3. according to the continuous expansion method of the described heat-shrink tube malleation of claim 1, it is characterized in that: heating process described in the step C, adopt the pressurize heating means, the pressure and the heat-shrink tube inner air pressure that are applied in the pressurize firing equipment on the heat-shrink tube outer wall balance each other.
4. according to the continuous expansion method of the described heat-shrink tube malleation of claim 4, it is characterized in that: the firing equipment of pressurize described in the step C is oily pressurize firing equipment or electric pressurize firing equipment.
5. according to the continuous expansion method of each described heat-shrink tube malleation in the claim 1 to 4, it is characterized in that: after the expander operation in step C, also have cooling step, this step adopts cooling device that the heat-shrink tube behind expander mould expander is cooled off.
6. according to the continuous expansion method of the described heat-shrink tube malleation of claim 5, it is characterized in that: in the cooling step of step C, cooling device adopts air-cooled or water cooling equipment.
7. continuous extension fixture of heat-shrink tube malleation, it is characterized in that: this device comprises the tubing conveying equipment (10) that is arranged in order, pressurize firing equipment (20), expander mould (30), cooling device (60) and heat-shrink tube traction water-tight equipment (40), also comprise pressure air conveying equipment (50), intending the heat-shrink tube of expansion is exported by tubing conveying equipment (10), through pressurize firing equipment (20), expander mould (30) is connected heat-shrink tube traction water-tight equipment (40) with cooling device (60) back, described pressure air conveying equipment (50) is communicated with an end of intending the expanding thermal shrinkage tube cavity, and sealing.
8. according to the continuous extension fixture of the described heat-shrink tube malleation of claim 7, it is characterized in that: described heat-shrink tube traction water-tight equipment (40) is for rolling pulling equipment, this roll pulling equipment comprise column rod face on roll rod, roll rod and drive and to roll rod or to roll the driving mechanism that rod rotates down down, roll rod on described and time roll gap between the rod rod face and be not more than the twice of heat-shrink tube pipe thickness.
9. according to claim 7 or the continuous extension fixture of 8 described heat-shrink tube malleations, it is characterized in that: described pressurize firing equipment (20) is provided with the pressure adjustmenting mechanism of adjusting pressurize firing equipment (20) internal pressure.
10. according to the continuous extension fixture of the described heat-shrink tube malleation of claim 9, it is characterized in that: described pressurize firing equipment (20) is oily pressurize firing equipment or electric pressurize firing equipment; Described cooling device (60) is air-cooled or water cooling equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101884047A CN102079132A (en) | 2009-11-27 | 2009-11-27 | Positive pressure continuous expanding method and device of heat shrinkable pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101884047A CN102079132A (en) | 2009-11-27 | 2009-11-27 | Positive pressure continuous expanding method and device of heat shrinkable pipe |
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| CN102079132A true CN102079132A (en) | 2011-06-01 |
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| CN2009101884047A Pending CN102079132A (en) | 2009-11-27 | 2009-11-27 | Positive pressure continuous expanding method and device of heat shrinkable pipe |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034341A (en) * | 2015-07-01 | 2015-11-11 | 深圳市智豪特材科技有限公司 | Clamping mechanism and heat shrink tubing positive companding device using same |
| CN108859077A (en) * | 2018-07-17 | 2018-11-23 | 黄石市至正橡塑新材料股份有限公司 | A kind of heat-shrink tube expansion tube production line |
| CN110092967A (en) * | 2019-04-26 | 2019-08-06 | 江苏达胜热缩防护用品有限公司 | A kind of preparation method of double layer continuous conduction insulated compound heat-shrink tube |
| 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 |
| CN113771355A (en) * | 2021-07-30 | 2021-12-10 | 山东建筑大学 | Insulating heat-shrinkable tube nesting device, robot system and method |
| CN114683517A (en) * | 2020-12-30 | 2022-07-01 | 脉通医疗科技(嘉兴)有限公司 | Pipe manufacturing equipment and manufacturing method thereof |
| CN115091733A (en) * | 2022-06-29 | 2022-09-23 | 长园电子（东莞）有限公司 | Expansion method of high-crosslinking-degree PET (polyethylene terephthalate) heat-shrinkable tube |
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| US3814785A (en) * | 1969-01-03 | 1974-06-04 | Ici Ltd | Heat stabilization of oriented thermoplastic films |
| JPS57152924A (en) * | 1981-03-17 | 1982-09-21 | Showa Electric Wire & Cable Co Ltd | Manufacture of heat shrinkable tube |
| US4997360A (en) * | 1988-04-23 | 1991-03-05 | Sumitomo Electric Industries, Ltd. | Apparatus for manufacturing heat-shrinkable resin tube |
| JPH11300767A (en) * | 1998-04-24 | 1999-11-02 | Meiki Co Ltd | Method for molding skin-integrated molded product |
| CN2691832Y (en) * | 2004-01-25 | 2005-04-13 | 王洪学 | Vertical heat shrinking pipe vacuum/ inner air combined pipe expander |
| CN1704231A (en) * | 2004-06-04 | 2005-12-07 | 中科英华高技术股份有限公司 | Thermal contraction inflation continuous expanding method and expanding device |
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2009
- 2009-11-27 CN CN2009101884047A patent/CN102079132A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3814785A (en) * | 1969-01-03 | 1974-06-04 | Ici Ltd | Heat stabilization of oriented thermoplastic films |
| JPS57152924A (en) * | 1981-03-17 | 1982-09-21 | Showa Electric Wire & Cable Co Ltd | Manufacture of heat shrinkable tube |
| US4997360A (en) * | 1988-04-23 | 1991-03-05 | Sumitomo Electric Industries, Ltd. | Apparatus for manufacturing heat-shrinkable resin tube |
| JPH11300767A (en) * | 1998-04-24 | 1999-11-02 | Meiki Co Ltd | Method for molding skin-integrated molded product |
| CN2691832Y (en) * | 2004-01-25 | 2005-04-13 | 王洪学 | Vertical heat shrinking pipe vacuum/ inner air combined pipe expander |
| CN1704231A (en) * | 2004-06-04 | 2005-12-07 | 中科英华高技术股份有限公司 | Thermal contraction inflation continuous expanding method and expanding device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034341A (en) * | 2015-07-01 | 2015-11-11 | 深圳市智豪特材科技有限公司 | Clamping mechanism and heat shrink tubing positive companding device using same |
| 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 |
| CN108859077A (en) * | 2018-07-17 | 2018-11-23 | 黄石市至正橡塑新材料股份有限公司 | A kind of heat-shrink tube expansion tube production line |
| CN110092967A (en) * | 2019-04-26 | 2019-08-06 | 江苏达胜热缩防护用品有限公司 | A kind of preparation method of double layer continuous conduction insulated compound heat-shrink tube |
| 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 |
| CN114683517A (en) * | 2020-12-30 | 2022-07-01 | 脉通医疗科技(嘉兴)有限公司 | Pipe manufacturing equipment and manufacturing method thereof |
| CN113771355A (en) * | 2021-07-30 | 2021-12-10 | 山东建筑大学 | Insulating heat-shrinkable tube nesting device, robot system and method |
| CN115091733A (en) * | 2022-06-29 | 2022-09-23 | 长园电子（东莞）有限公司 | Expansion method of high-crosslinking-degree PET (polyethylene terephthalate) heat-shrinkable tube |
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Application publication date: 20110601 |