CN208101036U - A kind of preceding mold core for double-wall pipe dilatation mold - Google Patents
A kind of preceding mold core for double-wall pipe dilatation mold Download PDFInfo
- Publication number
- CN208101036U CN208101036U CN201721723357.8U CN201721723357U CN208101036U CN 208101036 U CN208101036 U CN 208101036U CN 201721723357 U CN201721723357 U CN 201721723357U CN 208101036 U CN208101036 U CN 208101036U
- Authority
- CN
- China
- Prior art keywords
- mold core
- double
- wall pipe
- insertion section
- preceding mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of preceding mold cores for double-wall pipe dilatation mold, including mold core ontology before one, and it is integrally connected to an insertion section of preceding mold core ontology front end, wherein, mold core ontology and insertion section and the perforation passed through for double-wall pipe before sequentially passing through are offered in the preceding mold core body central axis direction, on the preceding mold core ontology and one, which is offered, positioned at perforated peripheral vacuumizes cavity, this vacuumizes cavity and is through to insertion section front end, it is offered on the preceding mold core ontology and several vacuumizes hole with vacuumize that cavity is connected, and it vacuumizes and is offered on cavity inner wall and several through-holes for being connected of perforation at this.The design of the utility model structure is special, novel, reasonable, can be used in double-wall pipe dilatation mold, realizes the size that double-wall pipe is expanded into needs, meets the needs of to different sizes double-wall pipe.
Description
Technical field
The utility model relates to a kind of double-wall pipe dilatation mold more particularly to a kind of preceding moulds for double-wall pipe dilatation mold
Core.
Background technique
Double-wall pipe is widely used in the wiring waterproof of electronic equipment, anti-gas-leak；The anti-corrosion protection of electric wire bifurcation, electric wire electricity
The occasions such as the wiring waterproof of the repairing of cable, water pump and immersible pump.The quality of double-wall pipe directly affects its waterproof, anti-gas-leak
Etc. performances.
In the prior art, the same same technique of equipment can only prepare a kind of double-wall pipe of size, when need
It when wanting various sizes of double-wall pipe, needs to reset technological parameter, and needs to carry out details change to equipment, it is difficult to realization pair
The quick mass production of double-wall pipe.
Therefore, it is necessary to develop the novel double-wall pipe dilatation mold of one kind to be needed to expand double-wall pipe size
Want the double-wall pipe of size.And for the function of double-wall pipe dilatation mold, mainly worked by mold core.
Utility model content
In view of the above deficiencies, the purpose of this utility model is to provide a kind of preceding mold core for double-wall pipe dilatation mold,
Structure design is special, novel, reasonable, can be used in double-wall pipe dilatation mold, realizes that the size that double-wall pipe is expanded into needs is big
It is small, meet the needs of to different sizes double-wall pipe.
Used technical solution is the utility model in order to achieve the above objectives：
A kind of preceding mold core for double-wall pipe dilatation mold, which is characterized in that including mold core ontology and integrally connected before one
In an insertion section of preceding mold core ontology front end, wherein offered in the preceding mold core body central axis direction and sequentially pass through preceding mould
Core ontology and insertion section and the perforation passed through for double-wall pipe offer a pumping on the preceding mold core ontology and positioned at perforated peripheral
Vacuum cavity, this vacuumizes cavity and is through to insertion section front end, offers on the preceding mold core ontology and vacuumizes cavity and be connected
It is logical it is several vacuumize hole, and vacuumize and offered on cavity inner wall and several through-holes that perforation is connected at this.
Be concavely provided with an annular groove in the preceding mold core ontology as a further improvement of the utility model, the annular groove will before
Mold core ontology is divided into two seal sections, is respectively arranged with a sealing ring in two seal section peripheries, the hole that vacuumizes is set
It is placed on annular groove.
A connection between described two seal sections by being formed in annular groove as a further improvement of the utility model,
Portion's connection, several holes that vacuumize are uniformly distributed on interconnecting piece.
It offers in the insertion section front end as a further improvement of the utility model, and vacuumizes cavity and be connected
Several connecting holes.
The insertion section front end has an arc contact surface as a further improvement of the utility model, described several
Connecting hole is opened on arc contact surface, and is uniformly distributed in perforated peripheral.
The junction convex in the preceding mold core ontology and insertion section is equipped with as a further improvement of the utility model,
One annular protrusion.
The beneficial effects of the utility model are：By the design of special, reasonable, novel structure, it can be achieved that side is to double-wall pipe
Interior ventilation, side use vacuumize mode and take out the air vacuumized in cavity, that is, take out the air of double-wall pipe periphery, eliminate extraneous
Air makes double-wall pipe expand into the size of needs the pressure of double-wall pipe, meets the need to different sizes double-wall pipe
It asks.
Above-mentioned is the general introduction of utility model technical solution, below in conjunction with attached drawing and specific embodiment, to the utility model
It is described further.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy for reaching predetermined purpose and being taken, below in conjunction with
Specific embodiment of the present utility model is described in detail in attached drawing and preferred embodiment.
Fig. 1 is please referred to, the utility model provides a kind of preceding mold core for double-wall pipe dilatation mold, including mold core before one
Ontology 1 and the insertion section 2 for being integrally connected to preceding 1 front end of mold core ontology, wherein on preceding 1 central axis direction of mold core ontology
The perforation 3 for offering mold core ontology 1 and insertion section 2 before sequentially passing through and being passed through for double-wall pipe, on the preceding mold core ontology 1 and
One is offered positioned at 2 peripheries of perforation and vacuumizes cavity, this vacuumizes cavity and is through to 2 front end of insertion section, in the preceding mold core ontology 1
On offer with vacuumize that cavity is connected it is several vacuumize hole 11, and vacuumize and offer and perforate on cavity inner wall at this
The 3 several through-holes being connected.
In the present embodiment, it is concavely provided with an annular groove 12 in the preceding mold core ontology 1, the annular groove 11 is by preceding mold core ontology 1
Two seal sections 13 are divided into, are respectively arranged with a sealing ring 131 in two 13 peripheries of seal section, the hole 11 that vacuumizes is set
It is placed on annular groove 12.Meanwhile being connected between described two seal sections 13 by the interconnecting piece 14 being formed in annular groove 12, it is described
Several holes 11 that vacuumize are uniformly distributed on interconnecting piece 14.
In the present embodiment, it is offered and several connecting holes for vacuumizing cavity and being connected in 2 front end of insertion section
21.Meanwhile 2 front end of insertion section has an arc contact surface 22, several connecting holes 21 are opened in arc contact surface
On 22, and it is uniformly distributed in 3 periphery of perforation.
Meanwhile an annular protrusion 4 is equipped in the preceding mold core ontology 1 and the junction convex of insertion section 2.
Preceding mold core provided in this embodiment, especially suitable in double-wall pipe dilatation mold, being used to carry out double-wall pipe periphery
It vacuumizes, makes double-wall pipe periphery without air pressure, as long as being passed through gas into double-wall pipe, the expansion work to double-wall pipe can be realized
Skill, the double-wall pipe of size needed for obtaining.It is of course also possible to which the length of mold core, specifically may be used before extending according to specific needs
It is realized by the identical or different preceding mold insert structure of several structures in grafting.
In use, connect vaccum-pumping equipment by vacuumizing hole 11, then be inserted into the air of the double-wall pipe periphery in perforation 3 via
Through-hole, which enters, vacuumizes cavity, is taken out, so that double-wall pipe periphery is formed vacuum, without air pressure；Simultaneously, double by passing to
Gas in wall pipe becomes larger double-walled enlargement of pipe.
Preceding mold core provided in this embodiment for double-wall pipe dilatation mold, is set by special, reasonable, novel structure
, it can be achieved that side is ventilated into double-wall pipe, side use vacuumizes mode and takes out the air vacuumized in cavity meter, that is, takes out double-wall pipe
The air of periphery eliminates outside air to the pressure of double-wall pipe, so that double-wall pipe is expanded into the size of needs, meet to difference
The demand of size double-wall pipe.
The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model
Any restrictions, therefore technical characteristic identical or approximate with the utility model above-described embodiment is used, and obtained other structures,
It is within the protection scope of the utility model.
Claims (5)
1. a kind of preceding mold core for double-wall pipe dilatation mold, which is characterized in that including mold core ontology before one and be integrally connected to
One insertion section of preceding mold core ontology front end, wherein offered in the preceding mold core body central axis direction and sequentially pass through preceding mold core
Ontology and insertion section and the perforation passed through for double-wall pipe on the preceding mold core ontology and are located at perforated peripheral to offer a pumping true
Cavity body, this vacuumizes cavity and is through to insertion section front end, offers on the preceding mold core ontology and vacuumizes cavity and be connected
It is several vacuumize hole, and vacuumize and offered on cavity inner wall and several through-holes that perforation is connected at this；In the preceding mould
Core ontology is concavely provided with an annular groove, which is divided into two seal sections for preceding mold core ontology, in two seal section peripheries point
It is not provided with a sealing ring, the hole that vacuumizes is set on annular groove.
2. the preceding mold core according to claim 1 for double-wall pipe dilatation mold, which is characterized in that described two seal sections
Between connected by the interconnecting piece that is formed in annular groove, several holes that vacuumize are uniformly distributed on interconnecting piece.
3. the preceding mold core according to claim 1 for double-wall pipe dilatation mold, which is characterized in that before the insertion section
End offers and several connecting holes for vacuumizing cavity and being connected.
4. the preceding mold core according to claim 3 for double-wall pipe dilatation mold, which is characterized in that the insertion section front end
Portion has an arc contact surface, and several connecting holes are opened on arc contact surface, and are uniformly distributed in perforated peripheral.
5. the preceding mold core according to claim 1 for double-wall pipe dilatation mold, which is characterized in that in the preceding mold core sheet
Body and the junction convex of insertion section are equipped with an annular protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721723357.8U CN208101036U (en) | 2017-12-12 | 2017-12-12 | A kind of preceding mold core for double-wall pipe dilatation mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721723357.8U CN208101036U (en) | 2017-12-12 | 2017-12-12 | A kind of preceding mold core for double-wall pipe dilatation mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208101036U true CN208101036U (en) | 2018-11-16 |
Family
ID=64130779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721723357.8U Expired - Fee Related CN208101036U (en) | 2017-12-12 | 2017-12-12 | A kind of preceding mold core for double-wall pipe dilatation mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208101036U (en) |
-
2017
- 2017-12-12 CN CN201721723357.8U patent/CN208101036U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20181116 Termination date: 20191212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |