CN1241480A - Production process and forming die for combined porous plastic pipe - Google Patents
Production process and forming die for combined porous plastic pipe Download PDFInfo
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- CN1241480A CN1241480A CN98115819A CN98115819A CN1241480A CN 1241480 A CN1241480 A CN 1241480A CN 98115819 A CN98115819 A CN 98115819A CN 98115819 A CN98115819 A CN 98115819A CN 1241480 A CN1241480 A CN 1241480A
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- plastic pipe
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Abstract
Material PE plastic is extruded at high temperature by extruder into forming mold, and the initially formed semi-finished product is cooled and settled in double cooler to obtain product. The said forming mold includes one extrusion molding head with compression channel, branch channel and dividing edge inside it, one inner cooler comprising hollow cooling linkage, cooling blockage and cooling water pipe, and one outer cooling and settling jacket. The present invention may be used in producing various porous plastic pipe with different shapes.
Description
What the present invention relates to is a kind of mould of making the technology of combined porous plastic pipe and making this combined porous plastic pipe.
The existing pipe making technology of moulding, mainly mould Guan Weizhu to make single hole, because of plastics forming technique, mainly comprise two kinds of injection machine and extruding machines, plastic pellet is heated into flow-like in injection machine or extruding machine, make the semi-finished product shape after mould comes out, then through the vacuum water cooling and shaping, because single hole is moulded pipe and had only a hole wall, adopt the typing of external vacuum water cooling can and can guarantee that the tube wall after its making typing is smooth with its cooling and shaping.But for combined porous plastic pipe, the manufacture craft of above-mentioned routine just can't satisfy it and make requirement, can't make the inner pipe wall cooling and shaping because depend merely on the external vacuum cooling and shaping, also promptly when the outside has been cooled typing, inside still is in the condition of high temperature, will be out of shape immediately in case be squeezed, influence the making quality of product.Especially for general PE plastics,, can't extrude making porous plastics pipe so it is conventionally believed that the PE plastics because of its viscosity is big.
The objective of the invention is to overcome the deficiency of above-mentioned existence, and a kind of manufacture craft of inside and outside two combined porous plastic pipes that cool off and the mould of making combined porous plastic pipe are provided.
The objective of the invention is to finish by following technical solution, the present invention mainly selects the PE plastics for use, especially a kind of by modification to reduce the PE plastics of its viscosity, under 140 ℃～160 ℃ temperature, enter porous, shaped mould by extruding machine, behind first one-step forming, the inside and outside dual cooling and shaping that overlaps through the interior cooling device of porous mold and outer vacuum cooled typing is produced porous plastic pipe continuously again.
Described PE plastics are heated to 160 ℃ in extruding machine, and interior cooling device adopts the recirculated water cooling, and outer vacuum cooled typing cover also adopts the recirculated water cooling, and its vacuum is 0.02 megapoise.
Aforesaid porous, shaped mould mainly comprises the extrusion die that always is connected to the extruding machine extrusion in succession, be provided with split channel in the extrusion die, the port of export of split channel is fixed with the end and is connected to the hollow cooling connecting rod that cooling is stopped up, cooling water pipe extends the cooling obstruction from the outside by the cooling connecting rod and has constituted interior cooling device, simultaneously, outside the port of export of split channel, be mounted with vacuum cooled typing cover.
Described split channel is to combine more than three, and the center then is connected to plum blossom cooling plug, the interior cooling water pipe that also is mounted with.
The present invention offers the pressure channel that is communicated with extrusion at the end that extrusion die connects extruding machine, be fixed with die cone with the connection rib in split channel subsequently, and hollow cooling connecting rod is fixed on the end face of die cone.
The present invention offers cooling tube passage (groove) on extrusion die, cooling water pipe extends cooling through cooling tube passage, hollow cooling connecting rod and stops up, and hollow cooling connecting rod is provided with sealing-plug with the junction of cooling off obstruction.
Description of drawings is as follows:
Fig. 1 is a manufacture craft flow diagram of the present invention.
Fig. 2 is a forming die structure schematic diagram of the present invention.
Below will the present invention will be described in detail by accompanying drawing: Fig. 1, the present invention mainly comprise batching 1, extruding machine 2, mould molding 3, inside and outside cooling and shaping 4, produce finished product 5.Select the PE plastics for use, add attached material and carry out modification, make it viscosity and reduce, finish batching 1 work.PE plastics adding extruding machine 2 extrusion molding under 140 ℃～160 ℃ temperature is entered porous, shaped mould carry out mould molding 3, behind first one-step forming, behind inside and outside cooling and shaping 4,, produce finished product 5 again to produce porous plastic pipe continuously.Described inside and outside cooling and shaping 4 mainly is included in interior pipe cooling device and the outer vacuum cooled typing cover in the porous, shaped mould.Extrusion molding built-in temperature described in the present embodiment is 160 ℃, and the vacuum of outer vacuum cooled typing cover is 0.02 megapoise, and inside and outside cooling and shaping 4 all adopts the recirculated water cooling.Described finished product 5 is produced continuously and is coiled.
Fig. 2, mould of the present invention mainly comprise the extrusion die 6 that directly is fixed on extruder, and this extrusion die 6 is by connecting die plate 7, and die cone plate 8 and typing cage plate 9 are by holding screw 10 formation that is fixed together mutually.Offer the pressure channel 11 that is communicated with extrusion at an end that connects die plate 7 connection extruders, this pressure channel shrinks diffusion throttling shape for 11 one-tenth, in pressure channel 11 backs is split channel 12, it is by the process of an inner chamber surface blending to the basic profile cavity of antipriming pipe, present embodiment is six holes pipes, therefore with the limit six split channels 12 are arranged, and these six split channels 12 run through die cone plate 8 and typing cage plate 9, and in the split channel 12 of die cone plate 8, be fixed with die cone 14 with connecting rib 13, the head guide head of each die cone 14 is streamline shape, evenly shunting in advance as fluid plastic, the afterbody of die cone 14 is concordant with typing cage plate 9 limit walls, and is provided with swivel nut.With the spinning cooling connecting rod 15 of a hollow of screw thread, the other end of this cooling connecting rod 15 is fixed with cooling by sealing-plug 16 and stops up 17 at the tail end of each spreader 14.Centre at above-mentioned six peripheral die cones also is provided with center die cone 18, and its afterbody is connected with blossom type cooling plug 19, and each peripheral die cone 14 formed center-surround organization above-mentioned plum blossom shape.In the junction of die cone plate 8 with typing cage plate 9, be provided with cooling-water duct (groove) 20, and it passes and connects the central space that rib 13 is communicated in each die cone 14 and 18, interior cooling water pipe 21 feeds every cooling connecting rod 15 and center cooling plug 19 from cooling-water duct 20, and the interior cooling water pipe 21 that feeds cooling connecting rod 15 directly extends cooling and stops up in 17, to cool off this obstruction 17.The utility model is also in typing cage plate 14 outsides, and promptly the split channel port of export is mounted with conventional vacuum cooled typing cover (not shown) outward, with the outer cooling that guarantees to mould pipe.
The utility model in use, the die plate 7 interior pressure channels 11 of extrusion die 6 clamp-oned the PE plastics of modification by extruder from extrusion, distribute in advance through the contraction of throttling shape diffusion aditus laryngis and to enter split channel 12, effect through die cone 14, from typing cage plate 9, extrude half-formed hot porous plastic pipe, after cooling obstruction 17 separately, in expansion, carry out interior cooling, outer cooling is being carried out in their effects of also being subjected to external vacuum cooling and shaping cover simultaneously simultaneously, by above-mentioned inside and outside cooling and shaping aftershaping and extrude continuously.
The utility model has been owing to adopted inside and outside cooling and shaping technology, broken formerly can not make with the PE plastics The final conclusion of porous profile shapes product has rational in infrastructure, compact, easy to use, long service life, and is made Porous plastic pipe good product quality, the yield rate high done.
Claims (6)
1, a kind of manufacture craft of combined porous plastic pipe, it is characterized in that selecting for use the PE plastics, under 140 ℃～160 ℃ temperature, enter porous, shaped mould (3) by extruding machine (2), behind first one-step forming, cooling and shaping (4) inside and outside the interior cooling device of porous, shaped mould and outer vacuum cooled typing cover dual is produced porous plastic pipe finished product (5) continuously again.
2, the manufacture craft of combined porous plastic pipe as claimed in claim 1, it is characterized in that described PE plastics are heated to 160 ℃ in extruding machine (2), interior cooling device and outer vacuum cooled typing cover all adopt the recirculated water cooling, and its vacuum is 0.02 megapoise.
3, a kind of mould of making combined porous plastic pipe, it is characterized in that it mainly comprises the extrusion die (6) that always is connected to the extruding machine extrusion in succession, be provided with split channel (12) in the extrusion die (6), the port of export of split channel (12) is fixed with the end and is connected to the hollow cooling connecting rod (15) that (17) are stopped up in cooling, cooling water pipe (21) extends the cooling obstruction (17) from the outside by cooling connecting rod (15) and has constituted interior cooling device, simultaneously, outside the port of export of split channel (12), be mounted with vacuum cooled typing cover.
4, the mould of making combined porous plastic pipe as claimed in claim 3 is characterized in that described split channel (12) is to combine more than three, and the center then is connected in the plum blossom cooling plug (19) and also is mounted with cooling water pipe (21).
5, as the mould of claim 3 or 4 described making combined porous plastic pipes, it is characterized in that the end that described extrusion die (6) connects extruding machine offers the pressure channel (11) that is communicated with extrusion, in split channel (12) subsequently, be fixed with die cone (14) and hollow cooling connecting rod (15) is fixed on the end face of die cone (14) with connection rib (13).
6, the mould of making combined porous plastic pipe as claimed in claim 5, it is characterized in that offering on the described extrusion die (6) cooling tube passage (20), cooling water pipe (21) is through cooling tube passage (20), hollow cooling connecting rod (15) extends cooling and stops up (17), and hollow cooling connecting rod (15) is provided with sealing-plug (16) with the junction of cooling off obstruction (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98115819A CN1241480A (en) | 1998-07-14 | 1998-07-14 | Production process and forming die for combined porous plastic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98115819A CN1241480A (en) | 1998-07-14 | 1998-07-14 | Production process and forming die for combined porous plastic pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1241480A true CN1241480A (en) | 2000-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98115819A Pending CN1241480A (en) | 1998-07-14 | 1998-07-14 | Production process and forming die for combined porous plastic pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1241480A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299889C (en) * | 2004-12-03 | 2007-02-14 | 镇江大洋星鑫工程管道有限公司 | Temper cooling process for polyethylene pipeline for syphon |
| CN100346892C (en) * | 2005-01-25 | 2007-11-07 | 广东兴发集团有限公司 | Fast 7075 aluminium alloy shape extruding process |
| CN105252732A (en) * | 2015-10-21 | 2016-01-20 | 吕昊 | Water-cooling extruding machine and operation method thereof |
-
1998
- 1998-07-14 CN CN98115819A patent/CN1241480A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299889C (en) * | 2004-12-03 | 2007-02-14 | 镇江大洋星鑫工程管道有限公司 | Temper cooling process for polyethylene pipeline for syphon |
| CN100346892C (en) * | 2005-01-25 | 2007-11-07 | 广东兴发集团有限公司 | Fast 7075 aluminium alloy shape extruding process |
| CN105252732A (en) * | 2015-10-21 | 2016-01-20 | 吕昊 | Water-cooling extruding machine and operation method thereof |
| CN105252732B (en) * | 2015-10-21 | 2020-01-24 | 吕昊 | Water-cooling plastic extruding machine and operation method thereof |
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| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |