CN205167546U - Expanding mould of heat shrinking pipe - Google Patents
Expanding mould of heat shrinking pipe Download PDFInfo
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- CN205167546U CN205167546U CN201520736646.6U CN201520736646U CN205167546U CN 205167546 U CN205167546 U CN 205167546U CN 201520736646 U CN201520736646 U CN 201520736646U CN 205167546 U CN205167546 U CN 205167546U
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Abstract
The utility model provides an expanding mould of heat shrinking pipe includes: cylindrical direction section, with direction section is connected, and with the inflation after the inseparable seal section of laminating of pyrocondensation inside pipe wall, the seal section diameter is greater than direction section diameter, with the radial expansion section that the seal section is connected and the diameter progressively increases, with the cylindrical sizing section in a plurality of high pressure draught holes is connected and is provided with to the radial expansion section. The expanding mould of heat shrinking pipe that it provided to use this application can realize that the pyrocondensation pipe slides in mould surface slight drag.
Description
Technical field
The application relates to heat-shrink tube manufacturing and processing equipment field, particularly a kind of expanding thermal shrinkage tube mould.
Background technology
Heat-shrink tube is a kind of special polyolefin material thermal contraction casing tube, and when production and processing, tubing to be processed is heated to elastomeric state, imposed load makes it expand, and cool fast when keeping expansion, make it enter glassy state, this state has just been fixed.Again heat in use, tubing will return to elastomeric state, if now do not have load, tubing bounces back.Utilize this characteristic of heat-shrink tube can expand caliber.
At present, existing heat-shrink tube generally adopts negative pressure to vacuumize mode or strap expansion pattern carries out expander, but which kind of mode all can make the sizing section of the heat-shrink tube after expanding and dilatation mold be close to, when finished product exports draw-gear drive heat-shrink tube slip, because heat-shrink tube is in elastomeric state when just rising and expand, it is subject to External Force Acting and is out of shape, and causes the larger stretching of product, affects product quality.
Therefore, when draw-gear drives heat-shrink tube to slide, how making to have between heat-shrink tube inwall and the sizing section of dilatation mold less frictional force to realize that heat-shrink tube slight drag slides is the problem needing solution badly.
Utility model content
The object of the application is to provide a kind of expanding thermal shrinkage tube mould, can realize having less frictional force between heat-shrink tube inwall and the sizing section of dilatation mold, and heat-shrink tube can slide on slight drag ground.
For achieving the above object, the utility model takes following technical scheme:
A kind of expanding thermal shrinkage tube mould, comprising:
Cylindrical guide section;
Be connected with described guide section, and with expand after the seal section that fits tightly of heat-shrink tube inwall, described diameter of sealed section is greater than described guide section diameter;
Be connected with described seal section and the radial dilatation section that progressively increases of diameter;
Be connected with described radial dilatation section and be provided with the cylindrical sizing section of multiple high pressure gas discharge orifice.
Preferably, described high pressure gas discharge orifice is evenly distributed on the top layer of described sizing section.
Preferably, described sizing section comprises:
Diameter is less than the cylindrical sizing post of default heat-shrink tube caliber, and wherein, heat-shrink tube is wrapped on described sizing post;
Be arranged on multirow first groove on described sizing post;
Be arranged on the high pressure gas discharge orifice in described first groove.
Preferably, the first groove is along the radial distribution of described sizing post, and first groove forms a closed circuit on described sizing post.
Preferably, described high pressure gas discharge orifice is along described sizing post axial distribution.
Preferably, described sizing section also comprises:
Be arranged on multirow second groove of described sizing post head end; Described first groove is arranged on described sizing post end;
Described second groove, along the axial directional distribution of described sizing post, is provided with high pressure gas discharge orifice in described second groove, and high pressure gas discharge orifice distributes in the radial direction along of described sizing post.
Preferably, the surface of described radial dilatation section is vertically distributed with multirow the 3rd groove; The high pressure gas discharge orifice along a radial direction distribution in described radial dilatation section is provided with in described 3rd groove.
Preferably, in each described first groove, described second groove and described 3rd groove, a high pressure gas discharge orifice is all set.
Preferably, described seal section is arranged multiplely there is multiple closed ring-type the 4th groove.
Compared with prior art, the application comprises following advantage:
The expanding thermal shrinkage tube mould that the application provides mainly comprises guide section, seal section, radial dilatation section and sizing section, and sizing section is provided with high pressure gas discharge orifice.When the top layer that the inwall of heat-shrink tube wraps in sizing section, after the heat-shrink tube mouth of pipe sealed, is arranged on the high pressure gas discharge orifice ejection high pressure draught on sizing section.High pressure draught can form one deck air track on the top layer of the inwall of heat-shrink tube and sizing section, and the inwall of heat-shrink tube is contacted with the top layer zero of sizing section, and then realizes the slight drag ground of heat-shrink tube on sizing section and slide rapidly.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Expanding thermal shrinkage tube mould first structural representation that Fig. 1 provides for the application;
Expanding thermal shrinkage tube mould second structural representation that Fig. 2 provides for the application;
Expanding thermal shrinkage tube mould the 3rd structural representation that Fig. 3 provides for the application;
Expanding thermal shrinkage tube mould the 4th structural representation that Fig. 4 provides for the application.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 to Fig. 4, expanding thermal shrinkage tube mould first structural representation that Fig. 1 provides for the application; Expanding thermal shrinkage tube mould second structural representation that Fig. 2 provides for the application; Expanding thermal shrinkage tube mould the 3rd structural representation that Fig. 3 provides for the application; Expanding thermal shrinkage tube mould the 4th structural representation that Fig. 4 provides for the application.
This application provides a kind of expanding thermal shrinkage tube mould, mainly comprise guide section 1, seal section 2, radial dilatation section 3 and sizing section 4.Guide section 1 one end connects one end of seal section 2, and the other end connects the mouth of pipe of heat-shrink tube to be expanded.Seal section 2 other end connects one end of radial dilatation section 3, and radial dilatation section 3 other end connects sizing section 4.
Before expanding heat-shrink tube, need heat-shrink tube to be heated to elastomeric state, to realize the plastotype to body.Pushed ahead by pipe to guide section 1 after being heated to elastomeric state to heat-shrink tube, guide section 1 is mate with the mouth of pipe cylindrical, and the diameter of guide section 1 is equal with the nozzle diameter of heat-shrink tube to be expanded or slightly large, to make mouthpiece cover on guide section 1.
After pipe is enclosed within guide section 1, pipe is continued to push ahead.Seal section 2 is connected with guide section 1, mainly realizes the sealing of line up.Concrete, the diameter of seal section 2 is greater than the diameter of guide section 1 and is less than target caliber.Heat-shrink tube, when through seal section 2, because heat-shrink tube is in elastomeric state, has the characteristic of inwardly retraction, therefore can fit tightly with the table plane of seal section 2.Seal section 2 is provided with the 4th groove 201 of annular, and under the 4th groove 201 is embedded in the table plane of seal section 2.Heat-shrink tube through seal section 2 time, in tube cavity, air is extruded in the 4th groove 201, thus makes the inwall of pipe wrap in seal section 2 more closely to show in plane.
Heat-shrink tube is being advanced in radial dilatation section 3 after seal section 2, and the diameter of radial dilatation section 3 progressively increases until identical with the diameter of sizing section 4.The caliber of heat-shrink tube is progressively expanded increase by radial dilatation section 3, until identical with the diameter of sizing section 4.
After heat-shrink tube is pushed on sizing section 4, the inwall of heat-shrink tube wraps on the top layer of sizing section 4.Sizing section 4 is provided with multiple high pressure gas discharge orifice 5.After on the top layer that the inwall of heat-shrink tube wraps in sizing section 4, the high pressure draught sprayed from high pressure gas discharge orifice 5 can form one deck air track on the top layer of the inwall of heat-shrink tube and sizing section 4, the inwall of heat-shrink tube is contacted with the top layer zero of sizing section 4, and then realizes the non-resistance of heat-shrink tube on sizing section 4 or slight drag is slided.
Concrete, high pressure gas discharge orifice 5 is provided with two kinds of modes, the first on sizing section 4, and high pressure gas discharge orifice 5 can be arranged on the top layer of sizing section 4 Direct Uniform, and is good on the top layer of sizing section 4 with intensive being covered with equably; The second, groove can be offered on sizing section 4, and high pressure gas discharge orifice 5 is arranged in groove.
Expanding thermal shrinkage tube mould first structural representation shown in Fig. 1 particularly illustrates high pressure gas discharge orifice and is arranged on situation on the top layer of sizing section equably.
Refer to Fig. 2, for the second way, the sizing section 4 of the expanding thermal shrinkage tube mould that the application provides comprises sizing post 401 and the first groove 402.The diameter of sizing post 401 is equal or bigger with the caliber of the heat-shrink tube after expansion.The surface of sizing post 401 is embedded with in the first groove 402, first groove 402 and is provided with high pressure gas discharge orifice 5.
First groove 402 has multirow, and the first groove 402 distributes along the radial direction of sizing post 401, and first groove 402 forms a closed loop on sizing post 401.Each first groove 402 is provided with a high pressure gas discharge orifice 5.
When heat-shrink tube is enclosed within sizing post 401, high pressure gas discharge orifice 5 sprays in the closed circuit that high pressure draught formed at single first groove 402 and defines a closed air flow loop, make the positive pressure suffered by each stress point of the heat-shrink tube inwall corresponding with this first groove 402 in the same size, balance and stability.
When all high pressure gas discharge orifices 5 work simultaneously, between heat-shrink tube inwall and sizing post 401, define a closed air flow loop layer, and then make the pressure size on each position of heat-shrink tube inwall identical.Simultaneously, owing to defining air flow loop layer on the top layer of sizing post 401, and air flow loop layer also serves the effect of air track, and then make the frictional force between heat-shrink tube inwall and sizing post 401 minimum, and then the slight drag slip of heat-shrink tube on sizing post 401 can be realized.
It should be noted that, the setting position of the high pressure gas discharge orifice 5 on the first groove 402 is not fixed, and preferably, the high pressure gas discharge orifice 5 on the first groove 402 can along the axial distribution of sizing post 401.
Through test find, if be arranged on sizing post 401 on the first groove 402 be set to radial distribution, then on heat-shrink tube inwall without corresponding flute mark; Along the axial distribution of sizing post 401, then heat-shrink tube inwall can leave lighter flute mark if be set to.Meanwhile, if the first groove 402 is radial distribution, then the frictional force between heat-shrink tube inwall and sizing post 401 can slightly larger than the situation of the first groove 402 axial distribution.
Therefore, in order to balance this situation preferably, the expanding thermal shrinkage tube mould that the application provides also is provided with multirow second groove 403.Refer to Fig. 3, the second groove 403 is arranged on sizing post 401 head end, and accordingly, the first groove 402 is arranged on sizing post 401 end, and the second groove 403 distributed areas connect with the first groove 402 distributed areas.Wherein, the region being provided with the second groove 403 is axial tension section, at axial tension section tubing by axial tension; Be provided with the region of the first groove 402 for sizing section, in the cooled sizing of sizing section tubing.
Second groove 403 along the axial directional distribution of sizing post 401, and is provided with high pressure gas discharge orifice 5 in the second groove 403.High pressure gas discharge orifice 5 distributes in the radial direction along sizing one of post 401.
On sizing post 401, heat-shrink tube is first by the second groove 403 region, and because the second groove 403 is vertically distribution, the frictional force therefore between heat-shrink tube inwall and sizing post 401 is less, and heat-shrink tube can travel forward quickly.When heat-shrink tube is by the first groove 402 region, radial direction arranges the vertical flute mark that heat-shrink tube inwall leaves is eliminated by the first groove 402, makes the heat-shrink tube inner wall smooth after expansion.
It should be noted that, the high pressure draught being arranged on high pressure gas discharge orifice 5 ejection in the second groove 403 also can form airflow layer between heat-shrink tube inwall and sizing post 401, reduces the frictional force between heat-shrink tube inwall and sizing post 401.Further, in each second groove 403, a high pressure gas discharge orifice 5 can be set respectively.
Can also arrange another seal section at the afterbody of sizing section 4, sealing section is identical with seal section 2 structure.
It should be noted that, the surface of radial dilatation section 3 also can arrange groove and high pressure gas discharge orifice 5, to realize the reduction of heat-shrink tube inwall and radial dilatation section 3 skin-friction force, and then heat-shrink tube is travelled forward quickly.Concrete, refer to Fig. 4, the surface of radial dilatation section 3 is vertically distributed with in multirow the 3rd groove the 301, three groove 301 the high pressure gas discharge orifice 5 of the radial direction distribution be provided with on radially expansion segment 3.In each 3rd groove 301, a high pressure gas discharge orifice 5 is set.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. an expanding thermal shrinkage tube mould, is characterized in that, comprising:
Cylindrical guide section;
Be connected with described guide section, and with expand after the seal section that fits tightly of heat-shrink tube inwall, described diameter of sealed section is greater than described guide section diameter;
Be connected with described seal section and the radial dilatation section that progressively increases of diameter;
Be connected with described radial dilatation section and be provided with the cylindrical sizing section of multiple high pressure gas discharge orifice.
2. expanding thermal shrinkage tube mould according to claim 1, is characterized in that, described high pressure gas discharge orifice is evenly distributed on the top layer of described sizing section.
3. expanding thermal shrinkage tube mould according to claim 1, is characterized in that, described sizing section comprises:
Diameter is less than the cylindrical sizing post of default heat-shrink tube caliber, and wherein, heat-shrink tube is wrapped on described sizing post;
Be arranged on multirow first groove on described sizing post;
Be arranged on the high pressure gas discharge orifice in described first groove.
4. expanding thermal shrinkage tube mould according to claim 3, is characterized in that, the first groove is along the radial distribution of described sizing post, and first groove forms a closed circuit on described sizing post.
5. expanding thermal shrinkage tube mould according to claim 4, is characterized in that, described high pressure gas discharge orifice is along described sizing post axial distribution.
6. expanding thermal shrinkage tube mould according to claim 5, is characterized in that, described sizing section also comprises:
Be arranged on multirow second groove of described sizing post head end; Described first groove is arranged on described sizing post end;
Described second groove, along the axial directional distribution of described sizing post, is provided with high pressure gas discharge orifice in described second groove, and high pressure gas discharge orifice distributes in the radial direction along of described sizing post.
7. expanding thermal shrinkage tube mould according to claim 6, is characterized in that, the surface of described warp-wise expansion segment is vertically distributed with multirow the 3rd groove; The high pressure gas discharge orifice along a radial direction distribution in described radial dilatation section is provided with in described 3rd groove.
8. expanding thermal shrinkage tube mould according to claim 7, is characterized in that, all arranges a high pressure gas discharge orifice in each described first groove, described second groove and described 3rd groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736646.6U CN205167546U (en) | 2015-09-11 | 2015-09-11 | Expanding mould of heat shrinking pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520736646.6U CN205167546U (en) | 2015-09-11 | 2015-09-11 | Expanding mould of heat shrinking pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205167546U true CN205167546U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520736646.6U Active CN205167546U (en) | 2015-09-11 | 2015-09-11 | Expanding mould of heat shrinking pipe |
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| Country | Link |
|---|---|
| CN (1) | CN205167546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001954A (en) * | 2021-03-16 | 2021-06-22 | 长园电子（东莞）有限公司 | Expansion die nozzle, die and expander |
-
2015
- 2015-09-11 CN CN201520736646.6U patent/CN205167546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001954A (en) * | 2021-03-16 | 2021-06-22 | 长园电子（东莞）有限公司 | Expansion die nozzle, die and expander |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |