CN206316212U - A kind of zigzag for forming high pressure in pipe is cut somebody's hair - Google Patents
A kind of zigzag for forming high pressure in pipe is cut somebody's hair Download PDFInfo
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- CN206316212U CN206316212U CN201621330414.1U CN201621330414U CN206316212U CN 206316212 U CN206316212 U CN 206316212U CN 201621330414 U CN201621330414 U CN 201621330414U CN 206316212 U CN206316212 U CN 206316212U
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- hair
- diameter
- pipe
- zigzag
- circular bosses
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Abstract
A kind of zigzag for forming high pressure in pipe is cut somebody's hair, including main body of cutting somebody's hair, body front end of cutting somebody's hair be zigzag seal head, including correcting head and positioned at correcting head behind zigzag seal section, the correcting head is less than the cylinder of pipe internal diameter for diameter, and its front end sets rounding；The zigzag seal section includes that N level lengths are identical, the circular bosses of diameter equal difference increase step by step, chopped-off head circular bosses are with diameter greater than correcting head cylinder diameter, final stage circular bosses diameter is less than main diameter of cutting somebody's hair, the gradient of 15 °~20 ° of first, last circular bosses external diameter formation；Above-mentioned N numerical value is the arbitrary integer between 3~5.This cuts somebody's hair good with tubing end sealing, the stuck phenomenon of correcting section can be prevented, it is to avoid producing radial load in the presence of thrust causes pipe end radial dilatation, and stuck in mold cavity phenomenon, so that charging feed supplement is more smooth, evenly, beneficial to the shaping of pipe.
Description
Technical field
The utility model is related to a kind of high-pressure forming mold, more particularly to a kind of zigzag for forming high pressure in pipe
Cut somebody's hair.
Background technology
While forming high pressure in pipe is by being pressurizeed to tubing internal filled liquid, axially applies side-thrust and carry out feed supplement,
Force tube billet to fit to mold cavity under the pressure effect of pressure medium, realize a kind of technique of pipe shaping, it is managed
The pressure of material internal filled liquid pressurization is generally up to 100MPa-400MPa, and most formation of parts need to also be protected under its high pressure conditions
The packing state for holding a period of time can be only achieved preferable forming effect, so end sealing structure quality is for internal high pressure forming
Technique is most important, and can directly influence superelevation pressure condition realize, so that can have influence on tubing part forming reach expection
Effect.
Traditional end sealing is used is processed into circular conical surface by the cut somebody's hair front end face of main body of two ends, and circular conical surface is in responsive to axial force
It is pushed down into tube end face and realizes sealing, using such a sealing structure, there is problems with：
1. during main body press-in of cutting somebody's hair, often result in the increase of pipe feeding resistance or be stuck in mold cavity, make
Mould or cut somebody's hair abrasion, deformed damaged, the service life and the reliability of work for have a strong impact on mould, cutting somebody's hair；
2. easily causing the radial dilatation of the mouth of pipe using such a end sealing structure, so as to increase the difficulty of pipe feed supplement, lead
Tube wall is thinning when causing shaping or rupture, and situation severe patient will cause to cut somebody's hair directly stuck in mold cavity with pipe fitting.
3. sealing structure disclosed in Chinese patent CN101011715, one is to easily cause bulging at the pilot hole of two ends or so,
Two be that need to additionally set " with die cavity ", the structure of cutting somebody's hair of " pilot hole ", its complex structure of cutting somebody's hair, manufacture using such a sealing structure
Manufacturability is poor, is more expensive to manufacture, and rubber is softer, because internal pressure is big, is very easy to abrasion, it is often necessary to change, not only
Increase cost, and lose time.
4. sealing structure disclosed in Chinese patent CN202097262U, is again provided with tapered sealing surface, though it is also equipped with
Thrust platform, but cut somebody's hair under big axial thrust effect, the pipe material that pipe end is contacted with thrust platform of cutting somebody's hair easily is collapsed,
At this moment due to the presence in conical surface seal face, the radial dilatation of the mouth of pipe can be equally caused during continuation of cutting somebody's hair is fed, is increased
The difficulty of pipe feed supplement, tube wall is thinning when causing to shape or ruptures；When there is mismachining tolerance in the heavy platform processing of the pipe end conical surface, due to
It is too deep that the pipe end conical surface sinks platform depth, mouth of pipe radial dilatation easily occurs and pipe end sinks platform depth and dives excessively and cause conical surface seal occur
Face seals not good situation.
Utility model content
The utility model solve technical problem be：There is provided a kind of letter of structure for the shortcoming existed for above-mentioned existing structure
It is single, it is easily manufactured, it is safe and reliable, can effectively eliminate pipe port expansion and it is stuck mold cavity be used for tubing inner high voltage into
The zigzag of shape is cut somebody's hair.
The utility model is adopted the technical scheme that：A kind of zigzag for forming high pressure in pipe is cut somebody's hair, including pushed away
Head main body, the body front end of cutting somebody's hair is zigzag seal head, including correcting head and zigzag seal section, and the correcting head is straight
Footpath is less than the cylinder of pipe internal diameter, and its front end sets rounding；The rear end of correcting head cylinder is zigzag seal section, the saw
Tooth form seal section includes that N level lengths are identical, the circular bosses of diameter equal difference increase step by step, and chopped-off head circular bosses are with diameter greater than correcting head circle
Column diameter, final stage circular bosses diameter is less than main diameter of cutting somebody's hair, the gradient of 15 °~20 ° of first, last circular bosses external diameter formation；
Above-mentioned N numerical value is the arbitrary integer between 3~5.
Its further technical scheme is：The each circular bosses formation of zigzag seal section is hung down with main body axial line of cutting somebody's hair
Straight small thrust platform, constitutes a big thrust platform vertical with axial line of cutting somebody's hair between final stage circular bosses and main body excircle of cutting somebody's hair.
Due to taking above technical scheme, a kind of zigzag for forming high pressure in pipe of the utility model is cut somebody's hair tool
Have the advantages that：
1. because body front end of cutting somebody's hair is zigzag seal head, correcting head sets rounding 111 for front end, is conducive to guiding tube
Base enters correcting section of cutting somebody's hair, and prevents that traditional structure from the stuck phenomenon of correcting section occur because manufacture perpendicularity of cutting somebody's hair is bad；
Correcting section for slightly smaller than pipe internal diameter the face of cylinder, it can be ensured that axial side-thrust stepless action in the pipe end of tubing two,
Strengthen the sealing of toothed segment simultaneously；Originally the diameter 0.05~0.10mm smaller than pipe internal diameter for the correcting section cut somebody's hair, segment length 2~
10mm, segment length's value is about the 10% of pipe external diameter but is not less than 2mm, no more than 10mm.
2. zigzag seal section is that multiple lengths are identical, the circular bosses of diameter equal difference increase step by step, multistage circular bosses it is oblique
Spend between 15 °~20 °, so as to extrude to form multi-turn rigidity Contact Seal ring with the pipe end conical surface, when pushing away in hydraulic cylinder of cutting somebody's hair
Under power effect during axial extruded tube end, the circular bosses formation broached-tooth design in toothed segment of cutting somebody's hair produces axial direction with the pipe end conical surface and squeezed
Pressure, the scene-affinity of circular bosses, which is in the presence of thrust, tightly stings the tight pipe end conical surface, is plastically deformed the pipe end conical surface many
Enclose rigidity Contact Seal ring；Simultaneously because foring multi-turn in the plastic deformation that the pipe end conical surface extruded with sawtooth is locally produced
Small thrust platform, can produce the uniform axial force of multi-turn so that feed supplement is more uniform；Avoid the continuous effect in thrust
It is lower generation radial load and cause pipe end radial dilatation so that effectively eliminate pipe port expansion and it is stuck in mold cavity phenomenon,
So that charging feed supplement is more smooth, beneficial to the shaping of pipe.
3. when zigzag seal section produces axial thrust deficiency, big thrust platform can farthest press tubing pipe end,
Making up axial supplement thrust ensures that feed supplement smooth can be carried out, and forms thrust sealing ring enhancing sealing.
A kind of zigzag for forming high pressure in pipe to the utility model is cut somebody's hair with reference to the accompanying drawings and examples
Technical characteristic be further described.
Brief description of the drawings
Fig. 1 is that the utility model zigzag seals structural representation of cutting somebody's hair；
Fig. 2 cuts somebody's hair for the sealing of the utility model zigzag and installs and uses view；
Fig. 3 is Fig. 2 A portions enlarged drawing；
Fig. 4, Fig. 5 cut somebody's hair schematic diagram for prior art；
In figure：
1-main body of cutting somebody's hair, 11-correcting head, 111-rounding, 12-small thrust platform, 13-big thrust platform, 2-upper mould,
3-pipe, 4-lower mould.
Embodiment
As shown in Figure 1, a kind of zigzag for forming high pressure in pipe is cut somebody's hair structure, including main body 1 of cutting somebody's hair, described
Body front end of cutting somebody's hair is zigzag seal head, including correcting first 11 and zigzag seal section, the correcting head are less than pipe for diameter
The cylinder of base internal diameter（The present embodiment using correcting section diameter 0.05~0.10mm smaller than pipe internal diameter, the segment length 2 cut somebody's hair~
10mm, segment length's value is about the 10% of pipe external diameter but is not less than 2mm, no more than 10mm）, front end of cutting somebody's hair sets rounding 111；Correcting
The rear end of head cylinder is zigzag seal section, and the zigzag seal section is including 4 level lengths are identical, equal difference increases diameter step by step
Circular bosses（The length identical circular bosses refer to that the axial length of circular bosses is identical）, chopped-off head circular bosses are with diameter greater than correcting
Head cylinder diameter, final stage circular bosses diameter, which is less than, cuts somebody's hair main diameter, 15 °~20 ° of first, last circular bosses external diameter formation it is oblique
Degree.
The each circular bosses formation of the zigzag seal section small thrust platform 12 vertical with main body axial line of cutting somebody's hair, this implementation
Totally 4 grades of circular bosses form 4 small thrust platform, wherein final stage to example altogether（4th grade）Circular bosses and main body excircle of cutting somebody's hair constitute one
Big thrust platform 13.
It is used as the conversion of above-described embodiment：Length included by zigzag seal section is identical, the diameter circle that equal difference increases step by step
The series of boss：N numerical value can be the arbitrary integer between 3~5.
Claims (2)
1. a kind of zigzag for forming high pressure in pipe is cut somebody's hair, including main body of cutting somebody's hair（1）, it is characterised in that：It is described to cut somebody's hair
Body front end is zigzag seal head, including correcting head（11）With zigzag seal section, the correcting head is less than pipe for diameter
The cylinder of internal diameter, its front end sets rounding（111）；The rear end of correcting head cylinder is zigzag seal section, the zigzag
Seal section includes that N level lengths are identical, the circular bosses of diameter equal difference increase step by step, and chopped-off head circular bosses are with diameter greater than correcting head cylinder
Diameter, final stage circular bosses diameter is less than main diameter of cutting somebody's hair, the gradient of 15 °~20 ° of first, last circular bosses external diameter formation；
Above-mentioned N numerical value is the arbitrary integer between 3~5.
2. a kind of zigzag for forming high pressure in pipe as claimed in claim 1 is cut somebody's hair, it is characterised in that：The sawtooth
The each circular bosses formation of the shape seal section small thrust platform vertical with main body axial line of cutting somebody's hair（12）；Final stage circular bosses and main body of cutting somebody's hair
A big thrust platform vertical with axial line of cutting somebody's hair is constituted between excircle（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621330414.1U CN206316212U (en) | 2016-12-06 | 2016-12-06 | A kind of zigzag for forming high pressure in pipe is cut somebody's hair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621330414.1U CN206316212U (en) | 2016-12-06 | 2016-12-06 | A kind of zigzag for forming high pressure in pipe is cut somebody's hair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206316212U true CN206316212U (en) | 2017-07-11 |
Family
ID=59267343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621330414.1U Expired - Fee Related CN206316212U (en) | 2016-12-06 | 2016-12-06 | A kind of zigzag for forming high pressure in pipe is cut somebody's hair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206316212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106853473B (en) * | 2016-12-06 | 2019-02-22 | 柳州科瑞科技有限公司 | A kind of zigzag push top for forming high pressure in pipe |
-
2016
- 2016-12-06 CN CN201621330414.1U patent/CN206316212U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106853473B (en) * | 2016-12-06 | 2019-02-22 | 柳州科瑞科技有限公司 | A kind of zigzag push top for forming high pressure in pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170711 Termination date: 20191206 |