CN202213200U - Thermal shrinkable pipe expanding mould and expanding device using same - Google Patents
Thermal shrinkable pipe expanding mould and expanding device using same Download PDFInfo
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- CN202213200U CN202213200U CN2011202941548U CN201120294154U CN202213200U CN 202213200 U CN202213200 U CN 202213200U CN 2011202941548 U CN2011202941548 U CN 2011202941548U CN 201120294154 U CN201120294154 U CN 201120294154U CN 202213200 U CN202213200 U CN 202213200U
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- pipe
- cover
- sleeve
- expanding
- thermal shrinkage
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Abstract
The utility model relates to a thermal shrinkable pipe expanding mould and an expanding device using the same. The thermal shrinkage pipe expanding mould comprises a blank pipe guide-in sleeve (1), a blank pipe pre-expanding sleeve (2), a conical expanding sleeve (3) and a blank pipe cooling and sizing sleeve (4), the conical expanding sleeve (3) is a conical mould sleeve, a pipe inlet is arranged at one end of the blank pipe guide-in sleeve (1), the other end of the blank pipe guide-in sleeve (1) is connected with a small end of the conical mould sleeve by the aid of the blank pipe pre-expanding sleeve (2), a pipe outlet is arranged at one end of the blank pipe cooling and sizing sleeve (4), and the other end of the blank pipe cooling and sizing sleeve (4) is connected with a large end of the conical mould sleeve. By the aid of the thermal shrinkable pipe expanding mould in the embodiment, friction force between a thermal shrinkable pipe and the sizing sleeve can be reduced, and expansion rate and extension rate can be increased, so that the expanded thermal shrinkable pipe is provided with thin side walls, free of bamboo joints, uniform in internal size and stable in production quality. Accordingly, production efficiency is improved and continuous mass production is realized.
Description
Technical field
The utility model belongs to the heat-shrink tube manufacture field, relates in particular to a kind of expanding thermal shrinkage tube mould and uses the extension fixture of this mould.
Background technology
In recent years, heat-shrink tube was widely used in electronics and electric power every field.The principle of heat-shrink tube is to utilize the alloy of crosslinking with radiation polyolefin and polymer thereof, through the effect of generation " shape memory " behind the high-energy ray irradiation, and then realizes coating various leads and cable connector, plays the purpose of insulating protection.In order to make heat-shrink tube can be applied to the lead of multiple thickness, heat-shrink tube usually need be through the aperture expansion process in process.So-called expansion process is exactly that the pipe behind the irradiation is carried out expander by the expansion multiplying power of appointment.At present; Existing heat-shrink tube generally adopts negative pressure to vacuumize mode or the strap expansion pattern carries out expander, but which kind of mode all can make heat-shrink tube and calibration sleeve after expanding be close to, when finished product output draw-gear drives the heat-shrink tube slip; Because rising just, heat-shrink tube is in elastomeric state when expanding; It is subject to the external force effect and is out of shape, and causes the bigger stretching of product, influences product quality; Simultaneously, adopt the negative pressure mode of vacuumizing to carry out expander, generally expand multiplying power less (being generally 2～3 times), pipe thickness is less that (be generally 2～3mm), the percentage elongation negative stretch is difficult to control; And employing strap expansion pattern carries out expander, and general tube-surface quality is unstable, and inconsistent, the inclined to one side wall phenomenon of bore size is more, is prone to produce ring.This shows that existing expanding thermal shrinkage tube mode all can't realize high efficiency continuous production in enormous quantities under the prerequisite that guarantees the expansion quality.
Summary of the invention
The utility model provides a kind of expanding thermal shrinkage tube mould and has used the extension fixture of this mould; So that overcome existing problem in the prior art; Reduce the frictional force between heat-shrink tube and the calibration sleeve; Increase expansion multiplying power and percentage elongation, make little, the no ring of the inclined to one side wall of heat-shrink tube after the expansion, the pipe inside dimension is consistent, the quality of production stable, thereby enhance productivity, realize continuous in enormous quantities production.
The purpose of the utility model realizes through following technical scheme:
A kind of expanding thermal shrinkage tube mould comprises: pipe imports cover 1, pipe expands cover 2, taper expansion cover 3 and pipe cooling calibration sleeve 4 in advance;
The end that pipe imports cover 1 is the inlet pipe mouth, and its other end expands cover 2 in advance through pipe and is connected with the small end that cover 3 is expanded in taper;
One end of pipe cooling calibration sleeve 4 is an outlet spout, and its other end is connected with the big end that cover 3 is expanded in taper.
Preferably, corresponding pipe expands the aperture of the aperture of cover 2 greater than pipe importing cover 1 in advance.
Preferably, being shaped as of cover 3 expanded in corresponding taper: the slotted eye of small end is gradient to the circular hole of big end.
Preferably, the hole area of section of the slotted eye of the small end of corresponding taper expansion cover 3 expands the hole area of section of cover 2 in advance greater than pipe.
A kind of malleation device for expanding thermal shrinkage tube comprises: the expanding thermal shrinkage tube mould described in the technique scheme, clamping device 5 and cooling body 8;
Clamping device 5 is located at pipe and is imported outside the cover 1; Cooling body is located at outside the pipe cooling calibration sleeve 4.
Preferably, also comprise belt traction mechanism 7; The tube wall that cover 3 is expanded in described taper is provided with axial aperture 6, and the belt 8 of belt traction mechanism 7 is located at axial aperture 6 places.
Preferably, corresponding belt traction mechanism 7 has two groups, and axial aperture 6 has two symmetric arrangement up and down, and two groups of belt traction mechanisms 7 are located at two axial aperture 6 places respectively.
Preferably, corresponding cooling body 8 is a water-cooled body.
Technical scheme by the invention described above embodiment provides can be found out; The embodiment of the invention expands cover 2, taper expansion cover 3 and pipe cooling calibration sleeve 4 in advance through pipe importing cover 1, the pipe that connects successively and constitutes the expanding thermal shrinkage tube moulds; Because being provided with pipe, this mould expands cover 2 in advance; And cover 3 is expanded in the taper that is provided with taper, thereby makes heat-shrink tube and calibration sleeve can not paste to such an extent that tension, frictional force are excessive, thereby reduces the frictional force between heat-shrink tube and the calibration sleeve; Enhance productivity, realize producing in enormous quantities.
Description of drawings
Fig. 1 is the structural representation one of the expanding thermal shrinkage tube mould that the utility model provided;
Fig. 2 is the structural representation two of the expanding thermal shrinkage tube mould that the utility model provided;
Fig. 3 is the expanding thermal shrinkage tube mould that the utility model provided and the structural representation of malleation device for expanding thermal shrinkage tube.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; It is understandable that described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
To combine accompanying drawing that the utility model embodiment is done to describe in detail further below.
Embodiment one
As depicted in figs. 1 and 2, a kind of expanding thermal shrinkage tube mould, its concrete structure can comprise: pipe imports cover 1, pipe expands cover 2, taper expansion cover 3 and pipe cooling calibration sleeve 4 in advance;
The end that pipe imports cover 1 is the inlet pipe mouth, and its other end expands cover 2 in advance through pipe and is connected with the small end that cover 3 is expanded in taper;
One end of pipe cooling calibration sleeve 4 is an outlet spout, and its other end is connected with the big end that cover 3 is expanded in taper.
Wherein, corresponding pipe expands the aperture of the aperture of cover 2 greater than pipe importing cover 1 in advance; Being shaped as of cover 3 expanded in corresponding taper: the slotted eye of small end is gradient to the circular hole of big end.
As shown in Figures 2 and 3, a kind of malleation device for expanding thermal shrinkage tube is used for pipe 9 is expanded, and its concrete structure can comprise: the expanding thermal shrinkage tube mould described in the technique scheme, clamping device 5 and cooling body 8;
Clamping device 5 is located at pipe and is imported outside the cover 1; Cooling body is located at outside the pipe cooling calibration sleeve 4.
Wherein, corresponding cooling body 8 is preferably water-cooled body.
Particularly, in practical application, this malleation device for expanding thermal shrinkage tube preferably also comprises belt traction mechanism 7; The tube wall that cover 3 is expanded in above-mentioned taper can be provided with axial aperture 6, and the belt 8 of belt traction mechanism 7 is located at axial aperture 6 places.Belt traction mechanism 7 has two group 7 can only have one group, but is preferably two groups; When belt traction mechanism 7 had two groups, axial aperture 6 had two symmetric arrangement up and down, and two groups of belt traction mechanisms 7 are located at two axial aperture 6 places respectively.
Further, following in conjunction with Fig. 1, Fig. 2 and Fig. 3 to the principle that the employing malleation device for expanding thermal shrinkage tube that the utility model provided carries out the pipe expansion:
To be sealed by 9 one of expander bases earlier, and constantly charge into the air of certain pressure from pipe 9 other ends; Pipe 9 gets into pipe and imports cover 1 under the effect of clamping device 5; Pipe 9 imports in the cover 1 at pipe and receives thermal softening, and the external pressure of pipe 9 is greater than the interior pressure of pipe 9 at this moment, and pipe 9 still holds its shape, and explosion can not take place in receiving thermal process; When getting into pipe and expand cover 2 in advance, the external pressure of pipe 9 weakens, and the interior pressure of pipe is greater than the external pressure of pipe, because the aperture that pipe expands cover 2 in advance imports the aperture of cover 1 greater than pipe, so pipe 9 obtains the preparatory expansion of appropriateness; When expanding cover 2 in advance from pipe, pipe 9 gets into tapers when expanding cover 3; Cover 2 is expanded in the aperture of overlapping 3 small ends in advance less than pipe aperture is expanded in taper; The external pressure major part of pipe 9 is expanded cover 3 small ends by taper and stops; Pipe 9 is close to and is under the pure interior effect of pressing, thereby the outer wall of pipe 9 evenly is fitted on the inner chamber of taper expansion cover 3, so the aperture of pipe 9 is able to expand; Can be provided with axial aperture 6 because the tube wall of cover 3 is expanded in taper, belt traction mechanism 7 directly contacts with the outer wall of pipe 9 through this perforate 6, and drives the interior move of pipe 9 along the expanding thermal shrinkage tube mould; After pipe 9 got into pipes cooling calibration sleeves 4, pipe 9 was at cooling body 8 sizing that is cooled, and then accomplished expansion.Adopt this malleation device for expanding thermal shrinkage tube that pipe is expanded the expansion multiplying power is improved, maximum can reach 5～6 times, and pipe thickness can reach 4～5mm, and the especially negative extension of percentage elongation can reach-15%～-20%.
It is thus clear that; The realization of the utility model embodiment can reduce the frictional force between heat-shrink tube and the calibration sleeve; Increase expansion multiplying power and percentage elongation, make little, the no ring of the inclined to one side wall of heat-shrink tube after the expansion, manage that inside dimension is consistent, the quality of production is stablized; Thereby enhance productivity, realize production continuously in enormous quantities.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. an expanding thermal shrinkage tube mould is characterized in that, comprising: pipe imports cover (1), pipe expands cover (2), taper expansion cover (3) and pipe cooling calibration sleeve (4) in advance;
The end that pipe imports cover (1) is the inlet pipe mouth, and its other end expands cover (2) in advance through pipe and is connected with the small end that cover (3) is expanded in taper;
One end of pipe cooling calibration sleeve (4) is an outlet spout, and its other end is connected with the big end that cover (3) is expanded in taper.
2. expanding thermal shrinkage tube mould according to claim 1 is characterized in that, the aperture that described pipe expands cover (2) in advance imports the aperture of overlapping (1) greater than pipe.
3. expanding thermal shrinkage tube mould according to claim 1 and 2 is characterized in that, being shaped as of cover (3) expanded in described taper: the slotted eye of small end is gradient to the circular hole of big end.
4. expanding thermal shrinkage tube mould according to claim 3 is characterized in that, the hole area of section of the slotted eye of the small end of described taper expansion cover (3) expands the hole area of section of cover (2) in advance greater than pipe.
5. a malleation device for expanding thermal shrinkage tube is characterized in that, comprising: any described expanding thermal shrinkage tube mould of claim 1 to 4, clamping device (5) and cooling body (8);
Clamping device (5) is located at pipe and is imported outside the cover (1); Cooling body is located at outside the pipe cooling calibration sleeve (4).
6. malleation device for expanding thermal shrinkage tube according to claim 5 is characterized in that, also comprises belt traction mechanism (7); The tube wall that cover (3) is expanded in described taper is provided with axial aperture (6), and the belt (8) of belt traction mechanism (7) is located at axial aperture (6) and is located.
7. malleation device for expanding thermal shrinkage tube according to claim 6 is characterized in that, described belt traction mechanism (7) has two groups, and axial aperture (6) has two symmetric arrangement up and down, and two groups of belt traction mechanisms (7) are located at two axial aperture (6) respectively and locate.
8. malleation device for expanding thermal shrinkage tube according to claim 5 is characterized in that, described cooling body (8) is a water-cooled body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202941548U CN202213200U (en) | 2011-08-12 | 2011-08-12 | Thermal shrinkable pipe expanding mould and expanding device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202941548U CN202213200U (en) | 2011-08-12 | 2011-08-12 | Thermal shrinkable pipe expanding mould and expanding device using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202213200U true CN202213200U (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202941548U Expired - Fee Related CN202213200U (en) | 2011-08-12 | 2011-08-12 | Thermal shrinkable pipe expanding mould and expanding device using same |
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| CN (1) | CN202213200U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248001A (en) * | 2018-01-16 | 2018-07-06 | 深圳市安特迈科技有限公司 | A kind of expanding thermal shrinkage tube draft gear |
| CN108515686A (en) * | 2018-04-19 | 2018-09-11 | 中国核电工程有限公司 | A kind of anti-stretching high speed dilatation mold of nuclear power heat-shrinkable T bush |
| 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 |
| 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 |
-
2011
- 2011-08-12 CN CN2011202941548U patent/CN202213200U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248001A (en) * | 2018-01-16 | 2018-07-06 | 深圳市安特迈科技有限公司 | A kind of expanding thermal shrinkage tube draft gear |
| CN108515686A (en) * | 2018-04-19 | 2018-09-11 | 中国核电工程有限公司 | A kind of anti-stretching high speed dilatation mold of nuclear power heat-shrinkable T bush |
| CN108515686B (en) * | 2018-04-19 | 2022-08-09 | 中国核电工程有限公司 | Nuclear power pyrocondensation pipe is with preventing high-speed expansion mould that stretches |
| 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 |
| 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 |
| CN113771355B (en) * | 2021-07-30 | 2023-03-28 | 山东建筑大学 | Insulating heat-shrinkable tube nesting device, robot system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120509 Termination date: 20180812 |