CN2151850Y - Special die set for producing plastic pipe connecting part containing electric resistance wire - Google Patents
Special die set for producing plastic pipe connecting part containing electric resistance wire Download PDFInfo
- Publication number
- CN2151850Y CN2151850Y CN 92241382 CN92241382U CN2151850Y CN 2151850 Y CN2151850 Y CN 2151850Y CN 92241382 CN92241382 CN 92241382 CN 92241382 U CN92241382 U CN 92241382U CN 2151850 Y CN2151850 Y CN 2151850Y
- Authority
- CN
- China
- Prior art keywords
- resistance wire
- mould
- pipe connecting
- plastic pipe
- socket
- 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 relates to a special mould for producing a plastic pipe connecting component containing a resistance wire, which is composed of two portions: mould cores and the forming cavity of the mould. The special mould for producing a plastic pipe connecting component containing an electric resistance wire is characterized in that the mould cores are a symmetrical cylinder structure; a left mould core and a right mould core are respectively provided with a movable positioning ring which is provided with a movable inserting block with the pin hole of the socket; the mould cores are equidistantly wound with the resistance wire; the both ends of the resistance wire are respectively fixed with a socket core in the pin hole of the socket, and the forming cavity of the mould is a cylinder structure. The adoption of the special mould for producing a plastic pipe connecting component containing a resistance wire can not only reform the existing production process and break through the limitation of the existing production process, but also can improve the production efficiency and reduce the cost.
Description
The utility model relates to the particular manufacturing craft that a kind of manufacturing contains the plastic conduit connector of resistance wire.
Plastic conduit is the most basic tubing that present advanced country is used to lay coal gas, oil, natural gas underground piping.The coupling method of plastic conduit is that two plastic tubes are inserted one in inner surface is laid with the plastic tube connector of resistance wire, connect power supply, the outer surface that makes resistance wire be warming up to two plastic tube connectors fuses together, then, cut off the electricity supply, cooling curing is to reach the purpose that connector and pipeline closely and securely are combined as a whole.
At present, this manufacture method commonly used that contains the plastic conduit connector of resistance wire, " but the improvement of welded tube road accessory and pipe joint " that is gone out out as European patent GB8304630, be to be processed into being pickled with grains or in wine of type in the shape of a spiral earlier in the inside of connector, after laying resistance wire in poor, in resistance wire energising heating, the inner surface of extruding connector makes its inside smooth.The subject matter that this manufacture method exists is: the production and processing complexity, efficient is low, and significant limitation is arranged, and only is suitable for making the plastic conduit connector of big caliber.
In view of the problem of above-mentioned existence, the purpose of this utility model provides the particular manufacturing craft that a kind of manufacturing contains the plastic conduit connector of resistance wire, with the reform existing manufacturing technique, enhances productivity, and reduces cost.
The concrete structure of particular manufacturing craft provided by the utility model is as shown in drawings:
Fig. 1 is the structural representation of the mould stamen of particular manufacturing craft
Fig. 2 is the structural representation that has the mold cavity of axial protruding key
Longitudinal sectional drawing b one transverse cross-sectional view of a one die cavity
Fig. 3 is the cut-away view after mould stamen and the mold cavity assembling
Fig. 4 is the first batch of newly-designed products (semi-finished product) that adopts the Pipe jointing part of particular manufacturing craft production
Fig. 5 is the mould stamen that sheds centring ring with pack into structural representation in the die cavity of semi-finished product.
Below in conjunction with accompanying drawing the utility model is elaborated:
The particular manufacturing craft that manufacturing contains resistance wire plastic conduit connector is made up of mould stamen 1 and mold cavity 6 two parts, and mould stamen 1 is the cylindrical structure of a symmetry, is divided into left and right two parts.On left and right mould stamen, be respectively arranged with the centring ring 3 of an activity, on centring ring 3, be provided with a loose plug (4) radially, loose plug 4 is provided with a socket pin-and-hole.On the mould stamen, be wound with resistance wire 2 equidistantly, convenient for coiling, also can on mould stamen 1, offer equidistant helicla flute earlier, resistance wire 2 is wound in the helicla flute, the two ends of resistance wire are fixing by the socket stamen in the socket pin-and-hole 5 respectively.
Mold cavity 6 is a cylindrical structure, for ease of with mould stamen 1 matched moulds, mold cavity 6 is divided into upper and lower symmetrical two parts.In addition,, axial protruding key 7 more than three can be in mold cavity, set up, axial protruding key can also be do not established according to the difference of the rate of tension of the resistance wire of institute's coiling on the mould stamen.Be provided with axial protruding key 7, the middle part of every axial protruding key 7 disconnects, and injecting hole 8 is arranged at the middle part of mold cavity 6, and the both sides of the axial protruding key 7 that disconnects with the middle part keep identical distance, so that the flowing of injection moulding liquid during injection moulding.
During matched moulds, earlier the relative position of two mould stamens is fixed, the mould stamen that will have centring ring 3 is then packed in the mold cavity 6.
Like this, promptly form an equidistant annular gap between around mold cavity 6 and the mould stamen 1.At this moment, as if injection moulding in injecting hole, can obtain the first batch of newly-designed products (semi-finished product) of Pipe jointing part as shown in Figure 4.First batch of newly-designed products 9 is put into another columniform mold cavity as the mould stamen together with the mould stamen that sheds centring ring 3 carry out the injection mo(u)lding second time, can obtain qualified plastic conduit connector.
Adopt the plastic conduit connector that the manufacturing of this particular manufacturing craft contains resistance wire not only to reform existing manufacturing technique, broken through the limitation of existing production technology, and improved production efficiency, reduced production cost significantly.
Claims (2)
1, a kind of manufacturing contains the particular manufacturing craft of the plastic conduit connector of resistance wire, it is characterized in that this particular manufacturing craft is made up of mould stamen (1) and mold cavity (6) two parts, mould stamen (1) is the cylindrical structure of a symmetry, on a left side, be respectively arranged with an activity orientation circle (3) on the right mould stamen, on centring ring (3), be provided with a loose plug (4) radially, on the loose plug (4), be provided with a socket pin-and-hole, on mould stamen (1), be wound with resistance wire (2) equidistantly, or on mould stamen (1), offer equidistant helicla flute, resistance wire is wound in the helicla flute, and the two ends of resistance wire are fixing by the socket stamen (5) in the socket pin-and-hole respectively, and mold cavity (2) is a cylindrical structure.
2, a kind of manufacturing according to claim 1 contains the particular manufacturing craft of the plastic conduit connector of resistance wire, it is characterized in that being provided with in the described mold cavity (6) the axial protruding key (7) more than three, and the middle part of every axial protruding key disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92241382 CN2151850Y (en) | 1992-11-07 | 1992-11-07 | Special die set for producing plastic pipe connecting part containing electric resistance wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92241382 CN2151850Y (en) | 1992-11-07 | 1992-11-07 | Special die set for producing plastic pipe connecting part containing electric resistance wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2151850Y true CN2151850Y (en) | 1994-01-05 |
Family
ID=33781474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92241382 Expired - Fee Related CN2151850Y (en) | 1992-11-07 | 1992-11-07 | Special die set for producing plastic pipe connecting part containing electric resistance wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2151850Y (en) |
-
1992
- 1992-11-07 CN CN 92241382 patent/CN2151850Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |