CN101408268B - U type injection moulding elbow and processing method thereof - Google Patents
U type injection moulding elbow and processing method thereof Download PDFInfo
- Publication number
- CN101408268B CN101408268B CN2008101222263A CN200810122226A CN101408268B CN 101408268 B CN101408268 B CN 101408268B CN 2008101222263 A CN2008101222263 A CN 2008101222263A CN 200810122226 A CN200810122226 A CN 200810122226A CN 101408268 B CN101408268 B CN 101408268B
- Authority
- CN
- China
- Prior art keywords
- pipe
- demoulding
- elbow
- shaped
- arc
- 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
- 238000001746 injection moulding Methods 0.000 title claims abstract description 18
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 229920003023 plastic Polymers 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000005058 metal casting Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses a U-shaped injection molding elbow and a processing method; the U-shaped injection elbow consists of an arc-shaped round pipe 1 with the range of 120-175 degrees and two straight round pipes 2 with straight nozzles; the internal diameter f the straight round pipe 2 is more than the internal diameter of the arc-shaped round pipe 1; a die consists of a concave die and a convex die, wherein, the convex die consists of an arc-shaped round convex die with the range of 120-175 degrees and two cylindrical convex dies; the diameter of the arc-shaped round convex die is less than the diameter of the two cylindrical convex dies; the rotation demoulding is adopted by the arc-shaped round convex die part. The U-shaped injection elbow solves the difficult problem of processing the U-shaped injection elbow, and leads the plastic pipe made into snake-shaped pipe heat exchanger to be possible; the radian of the arc-shaped round pipe is not traditional 180 degrees but less than180 degrees; and the demoulding process comprises twice demoulding such as linear demoulding and rotation demoulding.
Description
Technical field
The present invention relates to a parts U type injection moulding elbow of heat exchanger, it can be used for the snakelike coil heat exchanger of all plastics.
Background technique
The serpentine coil heat exchanger is a kind of heat exchanger that generally uses, and almost is the serpentine coil heat exchanger all such as air-conditioner heat exchanger.Part serpentine coil heat exchanger forms by bending, and most of serpentine coil heat exchanger is welded by straight tube and U type elbow.For the casting of metal U type elbow, because of there not being the demoulding problem, so realize easily.And plastic injection piece will keep hollow, certainly exists a demoulding problem.All there is one section straight parallel pipeline section at U type elbow two ends, and are the same with the metal casting elbow as fruit structure, just can't demoulding.Before the present invention, still there is not U type injection moulding elbow.The present invention has changed the structure of U type elbow, by simulation demoulding scheme, has solved and has made the difficult problem of U type injection moulding elbow, thereby plastic tube can have been made the serpentine coil heat exchanger.
Summary of the invention
The invention provides a kind of U type injection moulding elbow and processing method thereof, make the snakelike coil heat exchanger of plastics become possibility.
The technical solution used in the present invention is:
One, a kind of U type injection moulding elbow:
It is made up of by straight pipe arc pipe and two sections mouths of pipe of one section 120~175 degree, and the internal diameter of straight pipe is greater than the curved circular bore.
The straight pipe of described two sections mouths of pipe is parallel to each other, and perhaps its angle is in ± 10 degree.
Two, a kind of processing method of U type injection moulding elbow:
Mould is combined by former and formpiston.Described formpiston is made of one section 120~175 degree curved circular formpiston and two sections cylindrical punch, and curved circular formpiston diameter is less than two sections cylindrical male mode diameters, and the curved circular formpiston partly adopts rotating stripping demoulding.
Described curved circular formpiston and two sections cylindrical punch all have tapering, are convenient to the demoulding.
The effect that the present invention has is:
Solved the difficult problem of processing U type injection moulding elbow, making plastic tube make the serpentine coil heat exchanger becomes possibility; The radian of its arc pipe is not 180 traditional degree, but less than 180 degree, its demoulding technology comprises straight line demoulding and twice demoulding of rotation demoulding.
Description of drawings
Fig. 1 is a U type injection moulding elbow of the present invention.
Fig. 2 a~2c is a straight line demoulding schematic representation of the present invention.
Fig. 3 a~3c is that the present invention rotates the demoulding schematic representation.
Fig. 4 a~4c is 180 traditional degree U type elbow rotation demoulding schematic representation.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, it is made up of the present invention by straight pipe 2 arc pipe 1 and two sections mouths of pipe of one section A section, 120~175 degree, and the internal diameter of straight pipe 2 is greater than arc pipe 1 internal diameter.
The straight pipe 2 of described two sections mouths of pipe is parallel to each other, and perhaps its angle is in ± 10 degree.
A kind of processing method of U type injection moulding elbow, mould is combined by former and formpiston.Described formpiston is made of one section 120~175 degree curved circular formpiston and two sections cylindrical punch, and curved circular formpiston diameter is less than two sections cylindrical male mode diameters, and the curved circular formpiston partly adopts rotating stripping demoulding.
Described curved circular formpiston and two sections cylindrical punch all have tapering, are convenient to the demoulding.
After injection moulding is finished, at first the core body of U type elbow two straight length is extracted out, shown in Fig. 2 a~2c, adopt the rotation demoulding that arc pipeline section core body is released then, shown in Fig. 3 a~3c, in the demoulding process, can not take place to collide between core body and the moulding, and can fully core body be released.
Fig. 4 a~4c is 180 degree U type elbow rotation demoulding schematic representation, it is the present invention's form of metal U type elbow before, if injection moulding elbow also adopts this form, then when demoulding at first core body can and moulding bump, as Fig. 4 b cloud atlas position, actual can't the extraction out, in addition, even do not bump, when core body has entered moulding from another section again when one section is extracted out, shown in Fig. 4 c at 4b cloud atlas position.Therefore, according to the form of metal U type elbow, can not make injection moulding elbow.
Claims (3)
1. U type injection moulding elbow is characterized in that: it is made up of by straight pipe (2) arc pipe (1) and two sections mouths of pipe of one section 120~175 degree, and directly the internal diameter of pipe (2) is greater than arc pipe (1) internal diameter; The straight pipe (2) of described two sections mouths of pipe is parallel to each other, and perhaps its angle is in ± 10 degree.
2. the processing method of a U type injection moulding elbow, mould is combined by former and formpiston, it is characterized in that: described formpiston is made of one section 120~175 degree curved circular formpiston and two sections cylindrical punch, curved circular formpiston diameter is less than two sections cylindrical male mode diameters, and the curved circular formpiston partly adopts rotating stripping demoulding.
3. the processing method of a kind of U type injection moulding elbow according to claim 2 is characterized in that: described curved circular formpiston and two sections cylindrical punch, tapering is all arranged, and be convenient to the demoulding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008101222263A CN101408268B (en) | 2008-11-04 | 2008-11-04 | U type injection moulding elbow and processing method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008101222263A CN101408268B (en) | 2008-11-04 | 2008-11-04 | U type injection moulding elbow and processing method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101408268A CN101408268A (en) | 2009-04-15 |
CN101408268B true CN101408268B (en) | 2011-05-04 |
Family
ID=40571396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008101222263A Expired - Fee Related CN101408268B (en) | 2008-11-04 | 2008-11-04 | U type injection moulding elbow and processing method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101408268B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108973031B (en) * | 2018-09-30 | 2023-10-20 | 爱康企业集团(上海)有限公司 | One goes out two big circular arc U type internal thread tee bend pipe fitting injection mold |
KR102654110B1 (en) * | 2020-01-28 | 2024-04-02 | 니폰 필라고교 가부시키가이샤 | Resin joints, flow blocks and fluid control devices |
-
2008
- 2008-11-04 CN CN2008101222263A patent/CN101408268B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101408268A (en) | 2009-04-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103752666B (en) | The tubing press shaping die method of flexible chain ball plug | |
CN103537509B (en) | A kind of large-scale multi-nozzle pipeline thermal extrusion forming process is formulated and die design method | |
CN105268835A (en) | Three-segment type arc support swing-along-shape bend pipe lower die | |
CN105855344B (en) | The forming method of minor radius bend pipe | |
CN102319783A (en) | Heat-push bending method for producing pipe fittings with equal diameters and equal wall thicknesses | |
CN201127971Y (en) | Digital control pipe bender mold for hot bending | |
CN104607512B (en) | Bend forming method of large-angle pipeline with high precision, large pipe diameter and small bending diameter ratio | |
CN101408268B (en) | U type injection moulding elbow and processing method thereof | |
CN101961733B (en) | Metal elbow cold extrusion molding method | |
CN103495838A (en) | Irrigation extrusion process of abnormal-shaped tee pipes for air conditioner and pipe fittings manufactured according to irrigation extrusion process | |
CN203018515U (en) | Mandrel for elbow | |
CN102274881A (en) | Induction-heating bending device for pipes with same diameters and same wall thicknesses | |
CN111014385A (en) | Manufacturing process of U-shaped aluminum pipe | |
CN201815578U (en) | Cold extruding mold core of metal bent pipe | |
CN202123135U (en) | Thermal push-bending device for pipes with equal diameter and equal wall thickness | |
CN201281195Y (en) | U-shaped injection moulding elbow | |
CN101700543A (en) | Molding method of non-standard bent pipe mold | |
CN103394547B (en) | A kind of bend forming method | |
CN203124504U (en) | Pipe bender | |
CN108555046A (en) | The ultra dense degree internal thread straight trough copper pipe of one kind and its process mould | |
CN2928303Y (en) | Anti-crease mold set for pipe bender | |
CN202985872U (en) | Drain pipe elbow die | |
CN202667304U (en) | Metal bend extrusion forming device | |
CN208772172U (en) | A kind of mold and heat absorption plate core structure processing unit (plant) | |
CN105618602A (en) | Flaring device for thick-wall stainless steel pipe fitting |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 |
|
CF01 | Termination of patent right due to non-payment of annual fee |