CN1165080A - Method for manufacturing plastic tube with hollow screw corrugation on outer wall - Google Patents
Method for manufacturing plastic tube with hollow screw corrugation on outer wall Download PDFInfo
- Publication number
- CN1165080A CN1165080A CN 97100919 CN97100919A CN1165080A CN 1165080 A CN1165080 A CN 1165080A CN 97100919 CN97100919 CN 97100919 CN 97100919 A CN97100919 A CN 97100919A CN 1165080 A CN1165080 A CN 1165080A
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- Prior art keywords
- web
- wall
- plastic tube
- hollow
- hollow screw
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- Pending
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
A method for manufacturing plastic pipe with hollow spiral rib on its external wall features that a plastic extruder is used to extrude out hollow rib with bottom edges, which is then sectionally vacuumized and cooled by cold water in shaping mould, the hollow rib is wound around the multi-roller machine such that their bottom edges are overlapped, and the roller in pipe is heated to thermally fuse the bottom edges into a whole while the pipe is rolled to form smooth inner surface. Its advantages include smooth inner and outer wall, high strength and high rate of finished products.
Description
The present invention relates to the manufacture method of plastic tube with hollow screw corrugation on outer wall, this method is particularly suitable for making inside and outside the tube wall all sliding plastic tubes of light requirement.
The existing double wall spiral corrugated plastic pipe of making all is the web of extruding earlier with hollow rib generally, the method moulding of adopting spiral to twine then.Lead to the cold water cooling forming after extruding web in hollow rib hole, the method easily makes the hollow rib surfaces externally and internally after the moulding that uneven in various degree depression is arranged, and bulk strength is reduced.Adopt between the web when web twines at spiral and be welded into tubulose, the inside pipe wall that the method is welded out is rough, when the water-supply-pipe time spent, easily sticks foreign material at inside pipe wall, and the time is grown slightly and just blocking problem may take place.
The objective of the invention is to develop a kind of manufacture method of plastic tube with hollow screw corrugation on outer wall, with the plastic tube inner wall smooth that this method produces, hollow rib inside and outside wall surface does not have depression, and smooth, and integral plastics pipe intensity is increased.
The present invention realizes by following steps, at first extrudes the hollow rib material on band base with extruding machine, carries out section gap and vacuumize and lead to the cold water cooling and shaping in the web shaper.With the multiple roll machine web from coil to coil overlap joint is wound in tubulose then, adopts the hot-rolling hot melt, each web base is rolled be linked as smooth one at every overlap joint inwall place.
The plastic tube of the outer wall belt hollow screw corrugation made from the inventive method has following advantage.The inside and outside wall of hollow rib 2 does not all have depression, and smooth, and the inwall integral body of pipe is also smooth.The plastic tube bulk strength is increased, and liquid communication is smooth and easy, is difficult for producing clogging.Be fit to mass industrialized production, the yield rate height.
Fig. 1 is the structural representation of the hollow rib material on band base, and Fig. 2 is the structural representation of plastic tube with hollow screw corrugation on outer wall.
Embodiment: with the high density polyethylene (HDPE) is primary raw material, extrudes the hollow rib material on band shown in Figure 1 base with extruding machine, and section gap vacuumizes and the water flowing cooling and shaping between web shaper and rib 2.Web is wrapped on the multiple roll machine with the wrapping machine from coil to coil, overlap joint is all arranged mutually between every circle web, whole one-tenth tubulose.It is one that roller during winding in the heating tube makes every circle web base 1 hot melt, and makes inside pipe wall smooth through rolling of roller.Vacuum in the shaper is 0.06-0.09.
Claims (2)
1, the manufacture method of plastic tube with hollow screw corrugation on outer wall, extrude the hollow rib material on band base with extruding machine, web is wrapped on the multiple roll machine with the wrapping machine from coil to coil, overlap joint is all arranged mutually between every circle web, whole one-tenth tubulose, before it is characterized in that web is extruded winding, section gap vacuumizes and the water flowing cooling and shaping between web shaper and rib (2); It is one that roller when twining in the heating tube makes every circle web base (1) hot melt, and makes inside pipe wall smooth through rolling of roller.
2, the manufacture method of plastic tube with hollow screw corrugation on outer wall according to claim 1 is characterized in that the vacuum in the shaper is 0.06-0.09.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97100919 CN1165080A (en) | 1997-01-16 | 1997-01-16 | Method for manufacturing plastic tube with hollow screw corrugation on outer wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97100919 CN1165080A (en) | 1997-01-16 | 1997-01-16 | Method for manufacturing plastic tube with hollow screw corrugation on outer wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1165080A true CN1165080A (en) | 1997-11-19 |
Family
ID=5165400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97100919 Pending CN1165080A (en) | 1997-01-16 | 1997-01-16 | Method for manufacturing plastic tube with hollow screw corrugation on outer wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1165080A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383043A (en) * | 2018-09-30 | 2019-02-26 | 无锡福特汉姆科技有限公司 | A kind of production technology and equipments of spiral band |
-
1997
- 1997-01-16 CN CN 97100919 patent/CN1165080A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383043A (en) * | 2018-09-30 | 2019-02-26 | 无锡福特汉姆科技有限公司 | A kind of production technology and equipments of spiral band |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Keyi Document name: Notice of first review |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |