CN1199783C - Method for manufacturing integrally formed pipe with connecting part - Google Patents
Method for manufacturing integrally formed pipe with connecting part Download PDFInfo
- Publication number
- CN1199783C CN1199783C CN 03113142 CN03113142A CN1199783C CN 1199783 C CN1199783 C CN 1199783C CN 03113142 CN03113142 CN 03113142 CN 03113142 A CN03113142 A CN 03113142A CN 1199783 C CN1199783 C CN 1199783C
- Authority
- CN
- China
- Prior art keywords
- body molded
- spring tube
- pipe
- joint
- curved lever
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 8
- 238000004381 surface treatment Methods 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for manufacturing an integrally formed pipe with a connecting part, which is characterized by comprising the following steps of: preparing an elastic tube according to the shape of the integrally formed tube; sleeving the elastic pipe on the forming rod; assembling a mould to form a cavity between the inner surface of the mould and the elastic tube and the forming rod; injecting thermoplastic resin into the cavity for molding; and demolding and taking out the molding rod. The integrally formed pipe obtained by the invention can replace the existing pipe joint connecting mode, and because the integrally formed pipe is integrally formed, the problems of falling off of the joint and the like can not occur, and the assembly workload during use is also reduced.
Description
Technical field
The present invention relates to a kind of manufacture method of one-body molded pipe, be specifically related to a kind of manufacture method of the integrated tubing of spring tube that makes a plurality of branches of alternative pipe joint.
Background technique
In some machineries, equipment; particularly in the chemical industry equipment; relate to various pipeline structures; wherein; use a kind of spring tube to carry liquid or gas through regular meeting; when needs connect a plurality of spring tubes (as crotch); perhaps need to connect 2 spring tubes that bore is different; even when connecting a spring tube and a functional plastic device, existing method is to use pipe joint, and spring tube is sheathed on the pipe joint; because spring tube has certain expanding ability; when the pipe internal pressure is big, easily leaks, even come off from pipe joint.For preventing the leakage of liquid or gas, require between spring tube and pipe joint be connected reliable, for addressing this problem, the normal mounting bracket that uses is fixed in the prior art, perhaps use tackiness agent bonding, also there is the heat-shrink tube of employing sealed by thermal shrinkage, yet, adopt this mode still can leak, simultaneously, owing to need do fastening operation in each joint of pipe joint, increase along with the connecting tube way, operation intensity increases, and also causes the increase of running cost, even the incident that fastening operation is done in operator's leakage can take place.
Summary of the invention
The object of the invention provides a kind of one-body molded pipe that has joint, its joint structure that is formed in one, and alternative existing pipe joint can not come off, and needn't carry out fastening operation yet.
For achieving the above object, the technical solution used in the present invention is: a kind of manufacture method that has the one-body molded pipe of joint comprises the steps:
(1) prepares spring tube according to the shape of one-body molded pipe;
(2) spring tube is sheathed on the curved lever;
(3) the assembling mould makes between mould inner surface and described spring tube and curved lever and forms cavity;
(4) thermoplastic resin is injected described cavity moulding;
(5) demoulding, taking-up curved lever.
In the technique scheme,, can between described the 1st step and the 2nd step, do the surface and handle described spring tube for increasing the surface activity of spring tube.
Described surface treatment can be for adopting the moulding joint of organic solvent wiping spring tube.
In the technique scheme, described curved lever is a metallic rod, and the shape of curved lever cooperates with the cavity shape of one-body molded pipe.
When being used for the above moulding pipe of 3 forks, when perhaps the moulding pipe had than large program crooked, described curved lever can be combined by many metallic rod grafting.
In the technique scheme, described joint plays pipe joint of the prior art, be used for the spring tube more than 2 or 2 is coupled together, joint can be a different shape, as connect 3 breeches pipes, 4 breeches pipes of a plurality of bifurcated pipelines, connect 2 different bore spring tube all-in-one-piece reducing joints, connect the joining portion of one or more spring tubes and functional plastic device, or the like.Owing to joint is done one-body molded, when injection moulding, thermoplastic resin can be combined closely with the spring tube surface, and generation cross-linking reaction to a certain degree, make joint in conjunction with tight, can not come off or leak, spring tube is done surperficial processing can play degreasing, strengthen the surface-active effect of spring tube, make connection tightr.During moulding, in fact curved lever and the spring tube that is sheathed on the curved lever play the effect of inner mold, and form the space between outer mold, for molding and forming.To the one-body molded pipe that obtains after the demoulding, post-processed such as can prune.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1. the problem that spring tube and pipe joint come off can not take place in the pipe because the present invention is formed in one, and has significantly reduced the possibility of leaking yet;
2. among the present invention, spring tube is carried out surface treatment, can strengthen surface activity, guarantee the join strength between spring tube and thermoplastic resin;
3. because the present invention is formed in one, during use, needn't carry out the fastening operation of pipe joint, alleviate installation workload, also reduce because many places when fastening, operator's carelessness and the problem that causes.
Description of drawings
Accompanying drawing 1 is the schematic perspective view of the one-body molded pipe of the embodiment of the invention one;
Accompanying drawing 3 is embodiment three a perspective view;
Accompanying drawing 4 is the cross-sectional schematic of Fig. 3 structure.
Wherein: [1], spring tube; [2], joint.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment one: referring to attached illustrated in figures 1 and 2, a kind of manufacture method that has the one-body molded pipe of joint comprises the steps:
(1) 3 spring tubes are prepared in cutting, make its length, shape, caliber meet the requirement of the one-body molded pipe of required acquisition, and handle its joint with butanone;
(2) two metallic rod that cooperate with caliber are pegged graft T-shaped,, 3 spring tubes are sheathed on respectively in each branch of curved lever as curved lever;
(3) the assembling mould makes between mould inner surface and described spring tube and curved lever and forms cavity;
(4) thermoplastic resin is injected described cavity moulding;
(5) demoulding, taking-up curved lever can obtain the required one-body molded pipe of 3 forks.
The one-body molded pipe that present embodiment obtains comprises spring tube 1 and joint 2 as shown in Figures 1 and 2, because joint 2 tightly is overlying on around the spring tube 1 for thermoplastic resin, it can not come off in conjunction with tight.
In the present embodiment, spring tube can adopt various elastic plastic materialss, as various thermoplastic tube, specifically decides according to conditions such as the chemical property of needs flowing liquid or gas in the one-body molded pipe and temperature; Joint can adopt various hard thermoplastic resins (as ABS, PET etc.), specifically also needs the conditions such as chemical property, temperature on internal flow to decide.
Embodiment two: a kind of one-body molded pipe that has joint, its joint has 4 spring tubes to lead to, wherein 1 spring tube is a bend pipe, the manufacture method of present embodiment and embodiment one are similar, wherein, curved lever constitutes by leading to 3 consistent metallic rod of shape with joint, and prepares the tubing consistent with each spring tube in advance and get final product.
Embodiment three: shown in accompanying drawing 3 and accompanying drawing 4, a kind of one-body molded pipe with elbow comprises spring tube 1 and the joint 2 that plays the elbow effect, after 1 surface treatment of spring tube, constitute internal mold with curved lever, sheathed external mold on spring tube 1, through molding and forming, obtain the joint 2 of elbow shape.
Present embodiment can be connected on the equipment pipeline, and alternative existing elbow adds spring tube and is fixedly coupled structure.
Claims (5)
1. a manufacture method that has the one-body molded pipe of joint is characterized in that, comprises the steps:
(1) prepares spring tube according to the shape of one-body molded pipe;
(2) spring tube is sheathed on the curved lever;
(3) the assembling mould makes between mould inner surface and described spring tube and curved lever and forms cavity;
(4) thermoplastic resin is injected described cavity moulding;
(5) demoulding, taking-up curved lever.
2. the manufacture method of one-body molded pipe as claimed in claim 1 is characterized in that: between described the 1st step and the 2nd step described spring tube is done the surface and handle.
3. the manufacture method of one-body molded pipe as claimed in claim 2 is characterized in that: described surface treatment is for adopting the moulding joint of organic solvent wiping spring tube.
4. the manufacture method of one-body molded pipe as claimed in claim 1, it is characterized in that: described curved lever is a metallic rod, the shape of curved lever cooperates with the cavity shape of one-body molded pipe.
5. the manufacture method of one-body molded pipe as claimed in claim 4 is characterized in that: described curved lever is pegged graft by many metallic rod and is combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03113142 CN1199783C (en) | 2003-04-07 | 2003-04-07 | Method for manufacturing integrally formed pipe with connecting part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03113142 CN1199783C (en) | 2003-04-07 | 2003-04-07 | Method for manufacturing integrally formed pipe with connecting part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1442285A CN1442285A (en) | 2003-09-17 |
| CN1199783C true CN1199783C (en) | 2005-05-04 |
Family
ID=27796971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03113142 Expired - Fee Related CN1199783C (en) | 2003-04-07 | 2003-04-07 | Method for manufacturing integrally formed pipe with connecting part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1199783C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008034294A1 (en) * | 2006-09-19 | 2008-03-27 | Luhao Leng | A method for making handtool head and a rolling mill thereof |
| CN102501384A (en) * | 2011-11-03 | 2012-06-20 | 厦门建霖工业有限公司 | One-time moulding method and moulding device for hose with joint |
| CN102501386B (en) * | 2011-12-25 | 2013-01-02 | 常德市耐摩特聚合材料有限公司 | Method for manufacturing plastic pipe flange connectors by pressing and sintering |
| CN103568321B (en) * | 2012-07-20 | 2016-01-20 | 上海群力橡塑制品有限公司 | Connecting pipe of engine forming apparatus and forming method thereof |
| CN106224676A (en) * | 2016-08-19 | 2016-12-14 | 中国商用飞机有限责任公司 | Conveying pipeline for conveying corrosive liquid and manufacturing method thereof |
| JP7424722B2 (en) * | 2019-08-09 | 2024-01-30 | 三桜工業株式会社 | Piping branch structure |
-
2003
- 2003-04-07 CN CN 03113142 patent/CN1199783C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1442285A (en) | 2003-09-17 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |