CN104653935B - A kind of built-in type injection molding pipe part joint and its production technology - Google Patents
A kind of built-in type injection molding pipe part joint and its production technology Download PDFInfo
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- CN104653935B CN104653935B CN201510080447.9A CN201510080447A CN104653935B CN 104653935 B CN104653935 B CN 104653935B CN 201510080447 A CN201510080447 A CN 201510080447A CN 104653935 B CN104653935 B CN 104653935B
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- inserts
- injection molding
- pipe
- built
- coupling part
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/26—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics for branching pipes; for joining pipes to walls; Adaptors therefor
- F16L47/32—Branch units, e.g. made in one piece, welded, riveted
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of built-in type injection molding pipe part joint, including inserts and main pipe body part, the main pipe body part includes bound fraction and coupling part, bound fraction with coupling part is closed is fixedly connected；The inserts and coupling part socket；It is characterized in that：Annular protrusion is provided with the inserts lateral wall, annular protrusion is surrounded on inserts outer surface one week；The coupling part madial wall is provided with groove corresponding with annular boss forms, and groove is surrounded on the madial wall of coupling part one week；The annular protrusion insertion is arranged in groove.Annular protrusion, which is embedded in groove, can increase the contact area of inserts and coupling part, and then improve the bond strength of the pipe fitting joint；Inserts and main pipe body part are combined using injection molding manner, difficulty of processing will not be increased because of the thickness problem of inserts wall.
Description
Technical field：
The present invention relates to a kind of built-in type injection molding pipe part joint and its production technology, belong to tube connector technical field.
Background technology：
In living now, piping facility is in draining, blowdown, and the field such as network service plays an important role, and realizes pipe
The fast and effectively connection in road, is the important ring that piping facility effectively plays a role.
By injection molding manner connecting pipe, difficulty of processing will not be increased because of the thickness problem of processed pipe wall.It is existing
In technology, the connection of pipe fitting is generally mechanically connected using cushion rubber connection, flange connection, steel modeling transit joint etc.；For glue
Circle connection, the groove mould relative difficulty of machining small footpath pipe fitting cushion rubber, it is difficult to realize, and according to said method connection need to use glue
Circle, adds link cost；The subsequent machining technology of flange connection is cumbersome, and link cost is high and connection speed is slower；Steel was moulded
Spend the joint connection same price expensive, it is often more important that, when connected pipe fitting can not rotate, steel moulds excessive joint connection side
Method can not be realized effectively.By contrast by injection molding manner connecting pipe, it can overcome the shortcomings of that above-mentioned connected mode is present,
And injection molding manner inserts will not increase difficulty of processing because of the thickness problem of processed pipe wall；Some tube materials are because viscous
Degree is big, the low characteristic of mobility, it is difficult to realize injection connection.
For example, the relative feedwater tube wall thickness of the tube wall thickness used in pumping equipment such as existing row's rain, blowdown, water inspection shaft is thin very
It is many, generally consider the high PVC/CPVC pipe fittings of use intensity, in the case where tube wall is relatively thin with regard to intensity requirement can be met, but
It is that PVC and CPVC materials viscosity is big, processes more difficult.Injection molding can consider to use the preferable polyolefin of mobility, but polyene
Hydrocarbon pipe fitting can not meet the requirement with common PVC/gluing connection of CPVC tubing.
Chinese patent literature CN201526769U (application numbers：200920200498.0) a kind of pvc pipe joint is disclosed, wrap
Include body and interface, the internal diameter size and standard pipe size of interface are equal, gapless surplus, are formed with the inwall at bead
The many straight grooves to arrangement, interface and pipe way gapless surplus, glue is squeezed and scrapes interface bottom, realize after pipe insertion
Adhesion.Above-mentioned joint processing difficulties, cost are high, cumbersome, and the seal for pipe joints connected using such a connected mode is poor,
Anti-pressure ability is low, and stability is bad.
The content of the invention：
In view of the shortcomings of the prior art, the present invention provides a kind of built-in type injection molding pipe part joint.The joint is in mobility
Good main part insertion sets inserts, changes traditional injection moulding connected mode, not only realizes between the big pipe fitting of viscosity
Injection connection, and it is simple in construction, and cost is low, and feasibility is high.
The present invention also provides a kind of production technology of above-mentioned built-in type injection molding pipe part joint.
Technical scheme is as follows：
A kind of built-in type injection molding pipe part joint, including inserts and main pipe body part, the inserts and main pipe body part
Connected by injection molding manner；The main pipe body part includes bound fraction and coupling part, and bound fraction is close with coupling part
Close and be fixedly connected；The inserts and coupling part socket；Annular protrusion is provided with the inserts lateral wall, annular protrusion is surround
In inserts outer surface one week；The coupling part madial wall is provided with groove corresponding with annular boss forms, and groove is surrounded on
One week on the madial wall of coupling part；The annular protrusion insertion is arranged in groove；The inserts and the pipe that will be attached
Material or pipe fitting are fixedly connected.Annular protrusion, which is embedded in groove, can increase the contact area of inserts and coupling part, and then
Improve the bond strength of the pipe fitting joint；Inserts and main pipe body part are combined using injection molding manner, will not be because of inserts
The thickness problem increase difficulty of processing of wall；Obtained joint is directly processed using injection molding manner and does not need the other structures such as cushion rubber,
The flow passage structure of joint is simplified, the processing cost and globality for reducing mould are strong, good airproof performance, stability is higher.
According to currently preferred, the inserts is connected with the pipe fitting that will be attached by adhesion mode.
According to currently preferred, the inserts is consistent with the tube material that will be attached.Material unanimously can be real
Existing inserts is connected with the good adhesion of the pipe fitting that will be attached.
According to currently preferred, the inserts is PVC/CPVC materials；The main pipe body part is polyolefin material.
The intensity of PVC/CPVC pipes is high, in the case where tube wall is relatively thin with regard to that can meet intensity requirement；Polyolefin mobility is preferable, plus
Work is simple, can effectively realize injection molding.
According to currently preferred, the bossing corner of the annular protrusion and the bossing and inserts outside
The corner of wall contact is arcuate structure.Design and be advantageous in that herein, not only further increase increases inserts and connecting portion
The contact area divided, connects more firm, further improves the sealing and stability of joint, and arcuate structure is beneficial in joint
Portion's flow of fluid, to prevent or weaken impact failure of the main body material to insert structure, increases the service life.
According to currently preferred, the number of the annular protrusion is 1-5.Annular protrusion is determined as the case may be
Number, can determine manufacturing procedure on the premise of increase inserts and coupling part contact area, improve processing efficiency, time saving
It is laborsaving.
According to currently preferred, the plane of the inserts madial wall and the bound fraction madial wall junction is in same
One plane.The benefit designed herein is to reduce joint internal flow resistance, beneficial to the patency of flowing, prevent or weaken master
Impact failure of the body material to insert structure, increases the service life.
A kind of production technology of built-in type injection molding pipe part joint, including step are as follows：
(1) inserts is produced；The mode of production of inserts has two kinds, and one kind is injection molding manner；It is another to use solid-wall pipe
Corresponding shape is milled out in lathe to be made；Inserts is produced according to injection molding manner, design inlay mould is answered, then using tradition note
Modeling mode is molded by inserts；
(2) design and manufacture injection mold；
(3) in the inserts fixed pin for the injection mold that inserts is put into described in step (2), then matched moulds, injection molding pipe
Part main part, inserts is fit partially within main pipe body using injection molding manner together with, obtain injection molding pipe part joint.
Advantage of the invention is that：
1st, according to built-in type injection molding pipe part joint of the present invention, processed using injection molding manner, will not be because of pipe wall
Thickness problem increase difficulty of processing, and simplify the flow passage structure of joint, reduce the processing cost of mould；
2nd, according to built-in type injection molding pipe part joint of the present invention, not only solve because tube material poor fluidity,
The problem of injection that the characteristics such as viscosity height are brought is difficult, and effectively firm connection between inserts and pipe fitting can be realized；
3rd, it is not required to connect by cushion rubber according to built-in type injection molding pipe part joint of the present invention, machining small is also just not present
The difficulty that footpath pipe fitting aprons slot die strip comes, solves the mould processing problems that cushion rubber connect band is come, and reduction is connected using cushion rubber
Cost；
4th, the joint that the use injection molding manner of built-in type injection molding pipe part joint of the present invention is obtained is an entirety portion
Part, inserts and main pipe body part are combined using injection molding manner, and obtained joint integrity is strong, good airproof performance, and stability is higher；
5th, simple in construction according to built-in type injection molding pipe part joint of the present invention, practicality is high, is applicable to a variety of knots
The structural requirement of the joint of structure.
Brief description of the drawings：
Fig. 1 is that built-in type injection molding pipe part joint of the present invention is used for the structure that inspection shaft 250 × 160/110 converges threeway
Schematic diagram；
Fig. 2 is that built-in type injection molding pipe part joint of the present invention is used for the section that inspection shaft 250 × 160/110 converges threeway
Figure；
Fig. 3 is that built-in type injection molding pipe part joint of the present invention is used for the structural representation of 110 × 110 pipe collars；
Fig. 4 is that built-in type injection molding pipe part joint of the present invention is used for the profile of 110 × 110 pipe collars；
Fig. 5 is the axial, cross-sectional view of annular protrusion of the present invention；
Wherein, 1, inserts；2nd, coupling part；3rd, annular protrusion；4th, bound fraction.
Embodiment：
The present invention is described in detail with reference to embodiment and Figure of description, but not limited to this.
Embodiment 1,
As shown in Figure 1-2.
One kind converges the built-in type injection molding pipe part joint of threeway, including inserts 1 and pipe for inspection shaft 250 × 160/110
Part main part, the inserts 1 and main pipe body part are connected by injection molding manner；The main pipe body part includes joint portion
Points 4 and coupling part 2, bound fraction 4 with coupling part 2 is closed is fixedly connected；The inserts 1 and coupling part 2 are socketed；It is described
3 annular protrusions 3 are provided with the lateral wall of inserts 1, annular protrusion 3 is surrounded on 1 outer surface of inserts one week；The coupling part 2
Madial wall is provided with groove corresponding with the shape of annular protrusion 3, and groove is surrounded on the madial wall of coupling part 2 one week；The ring
The insertion of shape projection 3 is arranged in groove；The inserts 1 is consistent with the tube material that will be attached；The inserts 1 with will
The tubing or pipe fitting being attached are connected by adhesion mode.Annular protrusion 3, which is embedded in groove, can increase inserts 1 and connect
The contact area of socket part point 2, and then improve the bond strength of the pipe fitting joint；Using injection molding manner by inserts 1 and pipe fitting master
Body portion is combined, and will not increase difficulty of processing because of the thickness problem of the wall of inserts 1；Directly using connecing that injection molding manner processing is obtained
Head does not need the other structures such as cushion rubber, simplifies the flow passage structure of joint, the processing cost and globality for reducing mould be strong,
Good airproof performance, stability is higher.
Embodiment 2,
A kind of built-in type injection molding pipe part for converging threeway for inspection shaft 250 × 160/110 connects as described in Example 1
Head, its difference is：The inserts 1 is PVC/CPVC materials；The main pipe body part is polyolefin material.PVC/CPVC is managed
Intensity it is high, in the case where tube wall is relatively thin with regard to intensity requirement can be met；Preferably, processing is simple for polyolefin mobility.
Embodiment 3,
One kind is converged threeway built-in type PVC/CPVC pipes for inspection shaft 250 × 160/110 and connect as described in Example 1
Head, its difference is：What the bossing corner of the annular protrusion 3 and the bossing 3 were contacted with the lateral wall of inserts 1
Corner is arcuate structure.Design and be advantageous in that herein, not only further increase increase inserts 1 and coupling part 2 connect
Contacting surface is accumulated, and connects more firm, further improves the sealing and stability of joint, and arcuate structure is beneficial to joint internal flow
Flowing, to prevent or weaken impact failure of the main body material to insert structure, increases the service life.
Embodiment 4,
As shown in Figure 3-4.
One kind is used for 110 × 110 pipe collar built-in type injection molding pipe part joints, including inserts 1 and main pipe body part, described embedding
Part 1 and main pipe body part are connected by injection molding manner；The main pipe body part includes bound fraction 4 and coupling part 2, knot
Close part 4 and coupling part 2 is closed is fixedly connected；The inserts 1 and coupling part 2 are socketed；Set on the lateral wall of inserts 1
There are 3 annular protrusions 3, annular protrusion 3 is surrounded on 1 outer surface of inserts one week；The madial wall of coupling part 2 is provided with and annular
The corresponding groove of raised 3 shapes, groove is surrounded on the madial wall of coupling part 2 one week；The insertion of annular protrusion 3 is arranged on recessed
In groove；The inserts 1 is consistent with the tube material that will be attached；The inserts 1 passes through with the pipe fitting that will be attached
Adhesion mode is connected.Annular protrusion 3, which is embedded in groove, can increase the contact area of inserts 1 and coupling part 2, and then improve
The bond strength of the pipe fitting joint；Inserts 1 and main pipe body part are combined using injection molding manner, will not be because of the wall of inserts 1
Thickness problem increase difficulty of processing；Obtained joint is directly processed using injection molding manner and does not need the other structures such as cushion rubber, letter
The flow passage structure of joint is changed, the processing cost and globality for reducing mould are strong, good airproof performance, stability is higher.
Embodiment 5,
A kind of as described in Example 4 to be used for 110 × 110 pipe collar built-in type injection molding pipe part joints, its difference is：It is described
The madial wall of inserts 1 and the plane of the madial wall junction of bound fraction 4 are in same plane.The benefit designed herein is to drop
Low joint internal flow resistance, beneficial to the patency of flowing, prevents or weakens impact failure of the main body material to insert structure, prolong
Long life.
Embodiment 6,
A kind of production technology of built-in type injection molding pipe part joint as described in embodiment 1-5, including step are as follows：
(1) inserts 1 is produced；The mode of production of inserts 1 has two kinds, and one kind is injection molding manner；It is another to use solid wall pipe
Material mills out corresponding shape in lathe and is made；Inserts 1 is produced according to injection molding manner, design inlay mould is answered, then using biography
System injection molding manner is molded by inserts；
(2) design and manufacture injection mold；
(3) in the inserts fixed pin for the injection mold that inserts 1 is put into described in step (2), then matched moulds, injection molding pipe
Part main part, inserts 1 is fit partially within main pipe body using injection molding manner together with, obtain injection molding pipe part joint.
Claims (4)
1. a kind of built-in type injection molding pipe part joint, including inserts and main pipe body part；It is characterized in that：The inserts and pipe fitting
Main part is connected by injection molding manner；The main pipe body part includes bound fraction and coupling part, bound fraction and company
Socket part point is closed to be fixedly connected；The inserts and coupling part socket；Annular protrusion is provided with the inserts lateral wall, annular
Projection is surrounded on inserts outer surface one week；The coupling part madial wall is provided with groove corresponding with annular boss forms, recessed
Grooved ring is around on the madial wall of coupling part one week；The annular protrusion insertion is arranged in groove；The inserts will be with that will carry out
The pipe fitting of connection is fixedly connected；The inserts is connected with the pipe fitting that will be attached by adhesion mode；The inserts is
PVC/CPVC materials；The main pipe body part is polyolefin material；The inserts and the tube material one that will be attached
Cause；The bossing corner of the annular protrusion and the bossing are arc with the corner that inserts lateral wall is contacted
Structure.
2. a kind of built-in type injection molding pipe part joint according to claim 1, it is characterised in that：The number of the annular protrusion
It is 1-5.
3. a kind of built-in type injection molding pipe part joint according to claim 1, it is characterised in that：The inserts madial wall and institute
The plane for stating bound fraction madial wall junction is in same plane.
4. a kind of production technology of built-in type injection molding pipe part joint a kind of as described in claim 1-3 any one claims,
It is as follows including step：
（1）Produce inserts；The mode of production of inserts has two kinds, and one kind is injection molding manner；It is another to use solid-wall pipe in car
Bed mills out corresponding shape and is made；Inserts is produced according to injection molding manner, design inlay mould is answered, then using traditional injection moulding side
Formula is molded by inserts；
（2）Design and manufacture injection mold；
（3）Inserts is put into step（2）In the inserts fixed pin of described injection mold, then matched moulds, injection molding pipe fitting master
Body portion, inserts is fit partially within main pipe body using injection molding manner together with, obtain injection molding pipe part joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510080447.9A CN104653935B (en) | 2015-02-13 | 2015-02-13 | A kind of built-in type injection molding pipe part joint and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510080447.9A CN104653935B (en) | 2015-02-13 | 2015-02-13 | A kind of built-in type injection molding pipe part joint and its production technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104653935A CN104653935A (en) | 2015-05-27 |
| CN104653935B true CN104653935B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510080447.9A Active CN104653935B (en) | 2015-02-13 | 2015-02-13 | A kind of built-in type injection molding pipe part joint and its production technology |
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| CN (1) | CN104653935B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7451856B2 (en) * | 2019-08-27 | 2024-03-19 | 三桜工業株式会社 | Method for manufacturing a resin pipe with a fixing member and apparatus for manufacturing a resin pipe with a fixing member |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109929A (en) * | 1990-09-07 | 1992-05-05 | Spears Manufacturing Corp. | Sprinkler head adapter |
| AT397845B (en) * | 1993-02-08 | 1994-07-25 | Egger Karl | CONNECTOR FOR CONNECTING A METAL FITTING TO A PLASTIC PIPE PIPE FOR LIQUID MEDIA |
| CN2833303Y (en) * | 2005-11-11 | 2006-11-01 | 武汉金牛经济发展有限公司 | Double fused pipe fitting for metal plastic composite pipe |
| CN201069030Y (en) * | 2007-02-02 | 2008-06-04 | 郝源增 | Novel plastic insert for plastic pipe fitting |
| CN204477576U (en) * | 2015-02-13 | 2015-07-15 | 山东华信塑胶股份有限公司 | A kind of built-in type injection molding pipe part joint |
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