CN101293396B - Precooling apparatus of plastic tube product line - Google Patents
Precooling apparatus of plastic tube product line Download PDFInfo
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- CN101293396B CN101293396B CN2008100712231A CN200810071223A CN101293396B CN 101293396 B CN101293396 B CN 101293396B CN 2008100712231 A CN2008100712231 A CN 2008100712231A CN 200810071223 A CN200810071223 A CN 200810071223A CN 101293396 B CN101293396 B CN 101293396B
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- cooler
- plastic tube
- product line
- tube product
- outlet
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a pre-cooling device of a plastic tubular product manufacture line, which includes a shell with a sandwich; the inlet end of a material circulating channel in the inner cavity of the shell is communicated with the material outlet of a handpiece finish mold; the outlet end is communicated with the inlet of a sizing sleeve; the two ends of the sandwich of the shell are closed; the sandwich of the shell and the two end surfaces of the sandwich form the refrigerating channel of the pre-cooling device; a refrigerant inlet on the refrigerating channel is arranged on the refrigerating channel near the end of the handpiece finish mold; the outlet is arranged on the refrigerating channel near the end of the sizing sleeve. The pre-cooling device of the invention has the advantages that a high temperature material blank extruded from the handpiece finish mold is cooled by the pre-cooling device of the plastic tubular product manufacture line; therefore, the temperature ofthe extruded material blank is reduced and the material blank is contracted; the outer diameter of the material blank is almost consistent with the inner diameter of the sizing sleeve, thus being easier to enter the sizing sleeve, reducing the heat transferring action between the material blank and the sizing sleeve and avoiding the problems of over-heating of the sizing sleeve and blocking of the material blank from happening; thereby effectively improving the manufacture speed of the plastic tubular product manufacture line and stabilizing the manufacture.
Description
Technical field
The present invention relates to plastic tube product line, particularly the pre-cooler of plastic tube product line.
Background technology
Existing plastic tube product line mainly is made up of equipment such as blanking device, extruder, machine head port mould, calibration sleeve device, vacuum tank, hauling machine, cutting machines, the moulding of plastic pipe is mainly extruded by machine head port mould and is formed cylinder material embryo, the process calibration sleeve cools off and vacuumizes again, makes cylinder material indusium cooling and shaping reach the given size requirement.The streamline of this mode, directly enter calibration sleeve behind the material embryo outlet mould and cool off sizing, because just the material embryo temperature of outlet mould generally all has about 200 degree, and outlet mould material embryo all has certain dilatancy, tends to make the very fast heating of calibration sleeve like this, and the normal cooling that has greatly influenced the material embryo is shunk, influenced the normal traction of material embryo, cause the material embryo in the calibration sleeve blocking easily, even cause the traction of pipe indusium to break, influenced speed of production and stability.The quality and the outward appearance of tubing also have been subjected to very big reason simultaneously.The existing practice can only be improved by control composition of raw materials and production technology, so the outward appearance of the tubing of producing so all can only reach inferior brightness basically, is difficult to reach as minute surface and has good luster effect.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part and the pre-cooler of the plastic tube product line of a kind of tubing production stability that improves plastic tube product line and production efficiency is provided.
The objective of the invention is to realize by following approach.
A kind of pre-cooler of plastic tube product line, its structural feature is: the pre-cooler of described plastic tube product line comprises the housing with interlayer, the inner chamber of housing is the material stream passed passage, the entrance point of described material stream passed passage is connected with the material outlet of machine head port mould, the port of export of material stream passed passage and the inlet of calibration sleeve are conducted, the closed at both ends of crustless sandwich, crustless sandwich and interlayer both ends of the surface constitute the cold passage of putting of pre-cooler, put cold passage and be provided with the import and the outlet of putting cryogen, described import is positioned at puts close head membrana oralis end on the cold passage, and described outlet is positioned at puts on the cold passage near the calibration sleeve end.
The pre-cooler of plastic tube product line of the present invention, flow into by the import of putting cold passage when putting cryogen, and when flowing out by the outlet of putting cold passage, then can carry out preliminary cooling to the material embryo that enters pre-cooler material stream passed passage that flows out by the head membrana oralis, material embryo extexine toughness is strengthened, make the material embryo under the tractive force effect, be difficult for taking place disconnected pipe problem; Because the material embryo is subjected to the pre-cold-peace rubbing action of pre-cooler, head pressure is increased simultaneously, thereby help improving the plasticizing effect of raw material, improve the quality of products.Pass through the glossiness on the surface of control material stream passed passage simultaneously, also can improve the glossiness of material periblast greatly.
Describedly put the import and the outlet of cold passage or be arranged on the outer wall of crustless sandwich, or be arranged on the both ends of the surface of interlayer, or be arranged at simultaneously on the both ends of the surface of the outer wall of interlayer and interlayer.
Describedly put cryogen or for water, or be cold air.
The internal layer of described housing adopts the high metal material of thermal conductivity factor to make.
The cooling effect of the high more device of metal material thermal conductivity factor is good more, is beneficial to the material embryo more and is being subjected to good compression and rubbing action in the extrusion fast.
The metal material that described thermal conductivity factor is high is iron, stainless steel, copper.
The inner surface of the internal layer of described interlayer is through polishing or electroplating processes.
Internal layer inner surface after polishing or electroplating processes is very bright, the material embryo under the interaction of head pressure and tractive force, produce good pre-cold-peace friction with cover in the light after, the extexine of material embryo reflects the mirror surface luster the same with inner surface of inner race naturally.
Described housing with interlayer is a kind of housing of annular.
Described toroidal shell structure is: it comprises interior cover, overcoat, sealing plate, sealing ring, end between overcoat and the interior cover is for fixedlying connected, the other end between overcoat and the interior cover uses sealing ring and sealing plate with the interlayer end face seal, cavity between overcoat, interior cover and sealing ring and the sealing plate constitutes puts cold passage, be provided with import, outlet on the coat, the inner chamber of interior cover is the material stream passed passage.
Described fixedly connected or for being threaded, or be welding.
The cross section circle of described material stream passed passage.
Adopt dismountable the connection between the pre-cooler of described plastic tube product line and the head membrana oralis.
Adopt dismountable the connection with between the pre-cooler of plastic tube product line and the head membrana oralis, be convenient to both maintenance, change and installation.
Adopt dismountable being connected to be threaded between the pre-cooler of described plastic tube product line and the head membrana oralis.
In sum, the present invention has following advantage compared to existing technology:
The high temperature material embryo that is come out by the head membrana oralis is through the pre-cooler cooling of plastic tube product line, the material embryo of extruding like this is existing lowers the temperature and shrinks, material embryo external diameter and calibration sleeve internal diameter basically identical, can enter calibration sleeve easilier, reduced and calibration sleeve between heat transfer process, avoid problems such as calibration sleeve excessive heating and material embryo are obstructed to produce, thereby effectively improve the speed of production of plastic tube product line and produce stable.Simultaneously because after the inner surface of the internal layer of pre-cooler carried out polishing or electroplating processes, therefore can make the material embryo under the interaction of head pressure and tractive force, after the good pre-cold-peace friction of cover generation in the light, the extexine of material embryo reflects the mirror surface luster the same with inner surface of inner race naturally.
Description of drawings
Fig. 1 is the structural representation of pre-cooler of the plastic tube product line of the embodiment of the invention 1
Fig. 2 is the connection diagram of head membrana oralis, calibration sleeve and pre-cooler
Cover 312 overcoats 313 sealing plates 314 sealing rings 315 are put the port of export that cold passage 3151 is put the entrance point 42 material flow circulation roads of the outlet 4 material stream passed passages 41 material stream passed passages that the import 3152 of cold passage puts cold passage in label declaration label declaration 1 head membrana oralis 2 calibration sleeves 3 pre-coolers 31 housings 311
The specific embodiment
Below in conjunction with embodiment the present invention is described in more detail
A kind of plastic tube product line pre-cooler as shown in Figure 1, described plastic tube product line pre-cooler comprises the toroidal shell 31 with interlayer, cover 311, overcoat 312, sealing plate 313, sealing ring 314 in described housing comprises.Overcoat is connected with screw thread with interior cover one end, and the other end of overcoat and interior cover uses sealing ring and sealing plate with the interlayer end face seal.Interior cover, overcoat, and sealing ring, sealing plate constitute the cold passage 315 of putting of pre-cooler.Be provided with import 3151, the outlet 3152 of putting cold passage on the coat, import wherein and outlet are respectively four, are uniformly distributed in the periphery that annular is put the same section of cold passage.Described import is positioned at puts close head membrana oralis 1 end on the cold passage, and described outlet is positioned at puts on the cold passage near calibration sleeve 2 ends.The inner chamber of interior cover constitutes material stream passed passage 4, and described material stream passed passage is coaxial and, same size identical shaped with the machine head port mould inner chamber with machine head port mould.The entrance point 41 of the material stream passed passage of described pre-cooler 3 is connected with the material outlet of machine head port mould 1, and the port of export 42 of material stream passed passage is connected with the inlet of calibration sleeve 2.The cross section of the material stream passed passage in the present embodiment is circular.Cover adopts the high metal material of thermal conductivity factor to make in described, and it is made for stainless steel material.The inner surface of cover is through polishing in described.Adopt dismountable being connected to be threaded between the pre-cooler of described plastic tube product line (3) and the head membrana oralis (1).
It is same as the prior art that present embodiment is not stated part.
Claims (7)
1. the pre-cooler of a plastic tube product line, it is characterized in that: the pre-cooler of described plastic tube product line comprises the housing (31) with interlayer, the inner chamber of housing is material stream passed passage (4), the entrance point of described material stream passed passage (41) is connected with the material outlet of machine head port mould, the port of export of material stream passed passage (42) is conducted with the inlet of calibration sleeve, the closed at both ends of crustless sandwich, what crustless sandwich and interlayer both ends of the surface constituted pre-cooler puts cold passage (315), put cold passage and be provided with the import and the outlet of putting cryogen, described import is positioned at puts on the cold passage near head membrana oralis (1) end, described outlet is positioned at puts on the cold passage near calibration sleeve (2) end, described housing with interlayer is a kind of housing of annular, described toroidal shell comprises interior cover (311), overcoat (312), sealing plate (313), sealing ring (314), end between overcoat and the interior cover is for fixedlying connected, the other end between overcoat and the interior cover uses sealing ring and sealing plate with the interlayer end face seal, overcoat, interior cover, and the formation of the cavity between sealing ring and the sealing plate is put cold passage (315), be provided with import on the coat, outlet, the inner chamber of interior cover is the material stream passed passage.
2. the pre-cooler of plastic tube product line according to claim 1 is characterized in that: the internal layer of described housing adopts the high metal material of thermal conductivity factor to make.
3. the pre-cooler of plastic tube product line according to claim 2, it is characterized in that: the metal material that described thermal conductivity factor is high is iron or stainless steel or copper.
4. the pre-cooler of plastic tube product line according to claim 3 is characterized in that: the inner surface process polishing or the electroplating processes of the internal layer of described interlayer.
5. the pre-cooler of plastic tube product line according to claim 4 is characterized in that: an end fixedlys connected or for being threaded, or is welding between described overcoat and the interior cover.
6. the pre-cooler of plastic tube product line according to claim 1 is characterized in that: adopt dismountable the connection between the pre-cooler of described plastic tube product line (3) and the head membrana oralis (1).
7. the pre-cooler of plastic tube product line according to claim 6 is characterized in that: adopt dismountable being connected to be threaded between the pre-cooler of described plastic tube product line and the head membrana oralis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100712231A CN101293396B (en) | 2008-06-16 | 2008-06-16 | Precooling apparatus of plastic tube product line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100712231A CN101293396B (en) | 2008-06-16 | 2008-06-16 | Precooling apparatus of plastic tube product line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101293396A CN101293396A (en) | 2008-10-29 |
| CN101293396B true CN101293396B (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100712231A Expired - Fee Related CN101293396B (en) | 2008-06-16 | 2008-06-16 | Precooling apparatus of plastic tube product line |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101892969A (en) * | 2010-08-17 | 2010-11-24 | 西南石油大学 | High pressure low temperature liquid nitrogen pump hydraulic terminal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015952A (en) * | 2007-02-07 | 2007-08-15 | 潍坊凯德塑料机械有限公司 | Water immersion type plastic pipe sizing device |
| CN201244893Y (en) * | 2008-06-16 | 2009-05-27 | 福建祥龙塑胶有限公司 | Precooling apparatus for plastic pipe production line |
-
2008
- 2008-06-16 CN CN2008100712231A patent/CN101293396B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015952A (en) * | 2007-02-07 | 2007-08-15 | 潍坊凯德塑料机械有限公司 | Water immersion type plastic pipe sizing device |
| CN201244893Y (en) * | 2008-06-16 | 2009-05-27 | 福建祥龙塑胶有限公司 | Precooling apparatus for plastic pipe production line |
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| Publication number | Publication date |
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| CN101293396A (en) | 2008-10-29 |
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