CN201317100Y - Cooling device for tube extrusion - Google Patents
Cooling device for tube extrusion Download PDFInfo
- Publication number
- CN201317100Y CN201317100Y CN 200820205967 CN200820205967U CN201317100Y CN 201317100 Y CN201317100 Y CN 201317100Y CN 200820205967 CN200820205967 CN 200820205967 CN 200820205967 U CN200820205967 U CN 200820205967U CN 201317100 Y CN201317100 Y CN 201317100Y
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- Prior art keywords
- cooling device
- cooling
- circulus
- product
- annular structure
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- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a cooling device for tube extrusion operations, which is an annular structure in whole. One head face of the annular structure is provided with a mounting component connected with a tube extruder; a central channel of the annular structure is communicated with an extrusion outlet of the tube extruder; and a coolant passage is arranged in the wall layer of the annular structure. After a product extruded from a finish mold enters into the cooling device, the coolant in the coolant passage cools and reduces the temperature of the product extruded from the finish mold of the extrusion die, thus avoiding the problem of high rate of defective products due to molding fluctuation under high temperature. The cooling device does not change the processing technique or affect the performance of the product, ensures the smooth and continuous progress of the production and improves the yield.
Description
Technical field
The utility model relates to the method for continuous production tubing, is specifically related to a kind of cooling device that tubing is extruded that is used for.
Background technology
At present, the cooling device of domestic tubing generally all adopts vacuum sizing, the spray type of cooling, these methods are just to begin to cool down after tubing leaves mould one segment distance, but for a lot of materials such as extra-high-speed, ultrahigh molecular weight polyethylene tubing, because the characteristic of raw material itself, after adopting vacuum sizing, the spray type of cooling and tubing to leave mould one segment distance, tend to occur serious phenomenon such as pipe material inner wall cracking, outer wall bulge, cause tubing to squeeze not come out or extrude the poor quality, cause significant wastage.
In recent years, thermoplastics such as polyvinyl chloride resin are vigorously promoting the use in China, and the processing technology and the quality of product are just progressively improved.But the plastic pipe manufacturing industry in process of production for a long time, cooling to extruded product is the method that adopts chilling always, about 200 ℃ the high-temperature material of extruding from extrusion die directly enters the calibration sleeve fast shaping of the cold water that is arranged in about 25 ℃, because of temperature contrast too big, plastic products be easy to generate stress concentration, product embrittlement pliability is poor, product density is low, intensity is low, and when calibration sleeve vacuumizes, the through hole that the sizing jacket wall is provided with is easy to make the outer wall of the tubing bag that fluffed, and it is bright and clean that outer wall is owed, and influence requires the result of use in place attractive in appearance.
In addition, raising along with cost of material, each manufacturer takes the whole bag of tricks to reduce production costs, particularly, in raw materials for production, add a large amount of filler and reworked material, plastic raw materials is added the extruder heating plasticizing by loading hopper at PVC and PE plastic conduit production field, extrude by extrusion die, through typing cover cold rinse bank cooling and shaping, by hauling machine pulling, cutting machine fixed length cutting, pack warehouse entry at last, this method adopts same processing technology for the raw materials for production that add mass filler or reworked material, because die temperature is higher, the formed product difficulty, qualification rate is lower, if reduce die temperature, then can influence properties of product.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, a kind of cooling device that tubing is extruded that is used for that need not change production technology and can guarantee constant product quality is provided, this cooling device makes the i.e. cooling immediately of extruded product one outlet mould, has avoided the many situations of formed product fluctuation waster under the hot conditions.
Above-mentioned purpose of the present utility model is achieved by following scheme:
A kind ofly be used for the cooling device that tubing is extruded, this cooling device integral body is structure in the form of a ring, an end face of circulus is provided with the installing component that is connected with pipe extruder, the center-aisle of circulus communicates with the extrusion of pipe extruder, the parietal layer of circulus is provided with coolant channel, when product per os mould extrude enter the ring-type cooling device after, cooling agent by coolant channel cools to the product of extruding from extrusion die mouth mould, thereby avoided the torsional deformation of product, be easy to formed product.
Coolant channel in the above-mentioned cooling device can be for being arranged on the various pipeline patterns between the parietal layer, preferred winding pipe, cooling agent circulates in winding pipe and can realize that the effective cooling distance of cooling agent in unit length is maximum, thereby have better cooling effect, and can realize the even cooling of the whole circulus of cooling device.
The parietal layer of above-mentioned cooling device can be designed as the double-decker of being made up of inner and outer wall, winding pipe is looped around in the cavity between outer wall and the inwall, when product per os mould extrude enter the ring-type cooling device after, the cooling agent by winding pipe makes the product surface temperature reduce rapidly.
The cooling agent of above-mentioned cooling device can be selected any this area cooling commonly used reagent, as cooling water, silicone oil etc.
The center-aisle of above-mentioned cooling device communicates with the extrusion of pipe extruder, according to the extrusion shape of the used pipe extruder of reality, the center-aisle of cooling device can be designed to Common Shape such as circle, square or rectangle.
Above-mentioned cooling device can be installed in extrusion one end of pipe extruder by this areas such as welding or screw connected mode commonly used.
Compared with prior art, the utlity model has following beneficial effect:
1. cooling device of the present utility model is installed in next-door neighbour's mould mouth mould place, the shaped article of extruding by the cooling agent counterpart mould cooling that can be cooled fast, the many problems of formed product fluctuation waster under the hot conditions had both been avoided, can not change processing technology again, and do not influence properties of product, assurance production steady and continuous is carried out, and has improved yield rate;
2, cooling device of the present utility model, its cooling duct is except cavity structure, also adopt the winding pipe structure, cooling agent circulates in winding pipe and can realize that the effective cooling distance of cooling agent in unit length is maximum, thereby have better cooling effect, and can realize the even cooling of the whole circulus of cooling device;
3. the consistent size of its profile of cooling device of the present utility model and inside dimension and extrusion, and can be designed to circle, square or rectangle etc. is therefore applicable to the extruder of all size.
Description of drawings
Fig. 1 is the extrusion die of band air ring;
Fig. 2 is the cavity structure air ring;
Fig. 3 twines the cavity structure air ring of copper pipe for band;
Wherein, 1 is air ring, and 2 is a mouthful mould, and 3 is pad, and 4 is the cooling duct, and 5 for twining copper pipe.
The specific embodiment
Below in conjunction with embodiment the utility model is further described, but the utility model is not done any qualification.
Figure 1 shows that the extrusion die of band cooling device, wherein this cooling device is a circulus, therefore can be described as air ring again, the center-aisle of air ring 1 communicates with extrusion die, the ring wall of air ring 1 is provided with coolant channel, and the cooling agent by coolant channel cools to the product of extruding from extrusion die mouth mould 2.
When coolant channel is cavity structure, as shown in Figure 2, air ring 1 fixedly is installed at apart from mouthful mould 2 about 0.5mm places by welding at pad 3 places, when product per os mould 2 extrude enter air ring 1 after, cooling agent silicone oil circulates in the coolant channel 4 of cavity structure, thereby realizes cooling to the mould extruded product.
As shown in Figure 3, air ring 1 fixedly is installed at apart from mouthful mould 2 about 2mm places by welding at pad 3 places, also have in the cavity structure of coolant channel 4 at this moment and twine copper pipe 5, when product per os mould 2 extrude enter air ring 1 after, cooling agent silicone oil is circulation in twining copper pipe 5, thereby realize cooling to the mould extruded product, and the effective cooling distance in unit length is maximum because cooling agent circulation in twining copper pipe 5 can realize cooling agent, thereby have better cooling effect, and can realize the even cooling of the whole circulus of cooling device.
Claims (8)
1, a kind ofly is used for the cooling device that tubing is extruded, it is characterized in that integral body structure in the form of a ring, an end face of circulus is provided with the installing component that is connected with pipe extruder, and the center-aisle of circulus communicates with the extrusion of pipe extruder, and the parietal layer of circulus is provided with coolant channel.
2, cooling device according to claim 1 is characterized in that described coolant channel is the winding pipe that is arranged between the parietal layer.
3, cooling device according to claim 2, the double-decker of the parietal layer that it is characterized in that described circulus for being made up of outer wall and inwall, described winding pipe are looped around in the cavity between outer wall and the inwall.
4,, it is characterized in that described coolant channel is full of cooling water according to claim 1 or 2 or 3 described cooling devices.
5,, it is characterized in that described coolant channel is full of silicone oil according to claim 1 or 2 or 3 described cooling devices.
6, according to claim 1 or 2 or 3 described cooling devices, it is characterized in that the center-aisle of described circulus is rounded.
7,, it is characterized in that the center-aisle of described circulus is square or rectangle according to claim 1 or 2 or 3 described cooling devices.
8, cooling device according to claim 1 is characterized in that the described circulus and the installing component of pipe extruder are that welding or screw are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820205967 CN201317100Y (en) | 2008-12-24 | 2008-12-24 | Cooling device for tube extrusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820205967 CN201317100Y (en) | 2008-12-24 | 2008-12-24 | Cooling device for tube extrusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201317100Y true CN201317100Y (en) | 2009-09-30 |
Family
ID=41195870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820205967 Expired - Fee Related CN201317100Y (en) | 2008-12-24 | 2008-12-24 | Cooling device for tube extrusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201317100Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152465A (en) * | 2011-01-14 | 2011-08-17 | 华瀚科技有限公司 | Forming equipment of extruding strip of plastic-steel winding tube |
| CN108127893A (en) * | 2017-11-30 | 2018-06-08 | 开源塑业科技（南通）有限公司 | A kind of pvc pipe extruding machine mold water replanishing device |
-
2008
- 2008-12-24 CN CN 200820205967 patent/CN201317100Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152465A (en) * | 2011-01-14 | 2011-08-17 | 华瀚科技有限公司 | Forming equipment of extruding strip of plastic-steel winding tube |
| CN108127893A (en) * | 2017-11-30 | 2018-06-08 | 开源塑业科技（南通）有限公司 | A kind of pvc pipe extruding machine mold water replanishing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20090930 Termination date: 20141224 |
|
| EXPY | Termination of patent right or utility model |