CN206201434U - The mouth mold of plastic tube extrusion die - Google Patents
The mouth mold of plastic tube extrusion die Download PDFInfo
- Publication number
- CN206201434U CN206201434U CN201621230534.4U CN201621230534U CN206201434U CN 206201434 U CN206201434 U CN 206201434U CN 201621230534 U CN201621230534 U CN 201621230534U CN 206201434 U CN206201434 U CN 206201434U
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- mouth mold
- cooling
- water
- extrusion
- plastic tube
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model disclose a kind of cooling effect more preferably, tubing smoothness is higher and the mouth mold of tube extrusion more smoothly plastic tube extrusion die.The mouth mold of plastic tube extrusion die of the present utility model, the mouth mold cooling end is connected to the extrusion of the mouth mold forming part；The end face of the extrusion of the mouth mold forming part is provided with least two screwed holes；The mouth mold cooling end includes connecting portion, insulation part and water-cooled portion；The screwed hole of the extrusion end face of the connecting portion correspondence mouth mold forming part is provided with bolt hole, and the connecting portion is fixedly connected on the extrusion end face of the mouth mold forming part by the bolt；The insulation part two ends connect the connecting portion and water-cooled portion respectively；The external diameter of the insulation part is less than the external diameter of the connecting portion and the external diameter in water-cooled portion；Annular cooling water passage is provided between the madial wall and lateral wall in the water-cooled portion；The annular cooling water passage is provided with water inlet and delivery port.
Description
Technical field
The utility model is related to a kind of forming plastic pipe device, more particularly to a kind of mouth mold of plastic tube extrusion die.
Background technology
In plastics pipe extrusion plant, tubing dispensing is directly entered cooler bin cooling after high temperature is plastified, mouth mold is molded,
Due to having certain distance from mouth mold to cooler bin, it is impossible to cooling in time, mouth mold shaping pipe temperature out is high in addition, material
It is soft, often make that product surface smoothness is poor, waste product is more.Thus, cooling water ring is increased in mouth mold exit, continuous cooling water is defeated
Enter and export cooling water ring, to cool down tubing just from mouth mold outlet extrusion, improve tube surfaces smoothness.
However, the cooling water ring in traditional mouth mold exit is in close contact with mouth mold outlet be connected, by the heat of die temperature
Conduction, cooling water is heated, and cooling water ring still can not in time cool down the tubing of firm shaping, and tube surfaces smoothness is not high.And
And cool mouth mold outlet in advance due to cooling water ring so that shift to an earlier date from the tubing of mouth mold outlet extrusion and cooled down in mouth mold, lead
Cause tube extrusion to have some setbacks, cause pipe geometry irregular, reduce pipe workpiece quality.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of cooling effect more preferably, tubing smoothness is higher and tubing
Extrude the mouth mold of more smoothly plastic tube extrusion die.
In order to solve the above-mentioned technical problem, the mouth mold of plastic tube extrusion die of the present utility model, including mouth mold forming part
With mouth mold cooling end；The mouth mold cooling end is connected to the extrusion of the mouth mold forming part；The mouth mold cooling end center sets
It is equipped with plastic tube cooling duct, the madial wall of the madial wall of the plastic tube cooling duct and the extrusion of the mouth mold cooling end
Keep concordant and smoothly transit；The end face of the extrusion of the mouth mold forming part is provided with least two screwed holes；The mouth
Mould cooling end includes connecting portion, insulation part and water-cooled portion；The extrusion end face of the connecting portion correspondence mouth mold forming part
Screwed hole is provided with bolt hole, and bolt is provided with the bolt hole, and the connecting portion is fixedly connected on institute by the bolt
State the extrusion end face of mouth mold forming part；The insulation part two ends connect the connecting portion and water-cooled portion respectively；The insulation part
External diameter less than the connecting portion external diameter and water-cooled portion external diameter, the water-cooled portion, the space between insulation part and connecting portion
Form annular heat groove；Annular cooling water passage is provided between the madial wall and lateral wall in the water-cooled portion, the annular is cold
But the central shaft of aquaporin is Chong Die with the central shaft of the plastic tube cooling duct；The annular cooling water passage is provided with into water
Mouth and delivery port；Thickness between the annular cooling water passage and plastic tube cooling duct is more than or equal to the heat dam
With the thickness between plastic tube cooling duct.
The annular cooling water passage is set side by side with multiple, the water inlet of each annular cooling water passage respectively with
Water inlet pipe is connected, and the delivery port of each annular cooling water passage is connected with outlet pipe respectively.
The end face of the extrusion of the mouth mold forming part is provided with annular class's contact surface；The connection of the mouth mold cooling end
End end face is provided with the annular step level joint face being adapted with annular class's contact surface of mouth mold forming part.
Using structure of the present utility model, with beneficial effect once：
1st, due to being provided with insulation part between the connecting portion in mouth mold cooling end and water-cooled portion, the thickness of insulation part is more
Small, heat transfer is less, it is possible to reduce be transmitted to water-cooled portion from the heat of mouth mold forming part, can not only reduce the heat in water-cooled portion
Scatter and disappear, reduce the influence to forming plastic pipe, make tube extrusion more smooth, and the water-cooled portion in mouth mold cooling end can be carried
Cooling effect, improves the surface cooling to moulding plastics pipe, and then improve the smoothness of plastics pipe surface.
2nd, because water-cooled portion is set side by side with multiple annular cooling water passages, can from multiple be plastic tube is carried out it is cold
But, cooling effect can be improved, the smoothness of plastics pipe surface is improved.And, it is not first between multiple annular cooling water passages
Tail is connected, but is respectively arranged with respective delivery port and water inlet, and water inlet pipe and delivery port are connected respectively so that absorb heat
Cooling water can discharge in time, and then flow into new cooling water, such that it is able to reduce annular cooling water passage bulk temperature, from
And the cooling effect in water-cooled portion is improved, and the cooling effectiveness to plastic tube is improved, improve the smoothness of plastics pipe surface.
3rd, due to mouth mold cooling end and the junction of mouth mold forming part, stair-stepping ring surface is provided with, is not only conveniently connected
Connect, it is crooked to be difficult dislocation, and makes junction more tortuous, and connection is more sealed, it is possible to reduce leakage.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the mouth mold cooling end in Fig. 1.
Description of reference numerals：1- mouth mold forming parts, the solid screw of 2- sidepieces, 3- screwed holes, 4- bolts hole, the cooling of 5- mouth molds
Portion, 6- bolts, 7- annular cooling water passages, 8- inlet openings, 9- apopores, 51- connecting portions, 52- insulation parts, 53- water-cooleds portion.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description：
As depicted in figs. 1 and 2, the mouth mold of plastic tube extrusion die of the present utility model, including mouth mold forming part and mouth mold
Cooling end.Mouth mold forming part is used for the tubing dispensing extrusion molding for plastifying high temperature with reference to core, and mouth mold cooling end is used for squeezing
The plastic tube for going out is cooled down in time.Mouth mold cooling end is connected to the extrusion of mouth mold forming part.Mouth mold cooling end is centrally disposed
There is plastic tube cooling duct, the madial wall of plastic tube cooling duct is concordant simultaneously with the madial wall holding of the extrusion of mouth mold cooling end
And smoothly transit, the inwall for being easy to the firm plastic tube being molded to continue on mouth mold cooling end is skidded off, and plastic tube outer wall passes through
The timely cooling of mouth mold cooling end, does not crease easily and scratches, and obtains smoothness higher.
The end face of the extrusion of mouth mold forming part is provided with least two screwed holes.Can be two screwed holes, three spiral shells
Pit or four screwed holes etc., screwed hole is uniformly distributed with same intervals, is easy to firmly connect mouth mold cooling end.
Mouth mold cooling end includes connecting portion, insulation part and water-cooled portion.
Connecting portion is used for connector mold forming portion.The screwed hole of the extrusion end face of connecting portion correspondence mouth mold forming part is set
There is bolt hole, bolt is provided with bolt hole, bolt passing through bolt hole and end thread are connected to screwed hole, and connecting portion passes through
Bolt is fixedly connected on the extrusion end face of mouth mold forming part.It is bolted, facilitates the dismounting and change in water-cooled portion.
Insulation part two ends connect connecting portion and water-cooled portion respectively.The internal diameter of insulation part, the internal diameter of connecting portion and water-cooled portion
Internal diameter is equal.The external diameter of insulation part is less than the external diameter of connecting portion and the external diameter in water-cooled portion, the i.e. thickness of insulation part less than connection
The thickness in portion and the thickness less than water-cooled portion.Water-cooled portion, the space between insulation part and connecting portion form annular heat groove, heat-insulated
Groove with heat-insulated, and can not only be radiated by air so that by insulation part the heat for being thermally conducted to water-cooled portion more
It is few.The vertical section of heat dam is rectangle so that the distance between heat-insulated groove bottom wall and plastic tube cooling duct keep uniform, so that
Radiating more fully and evenly can be carried out to insulation part.By setting the less insulation part of thickness, in connecting portion and water-cooled
Heat dam is formed between portion, it is possible to reduce mouth mold forming part can not only reduce mouth mold forming part to the heat transfer in water-cooled portion
Heat losses speed, and the cooling effectiveness in water-cooled portion can be improved, so as to improve the cooling effectiveness to base plastic pipe, improve
The smoothness of plastic tube.
Annular cooling water passage, the central shaft of annular cooling water passage are provided between the madial wall and lateral wall in water-cooled portion
Central shaft with plastic tube cooling duct is Chong Die.Annular cooling water passage is provided with water inlet and delivery port.By water inlet not
Stop into cooling water, the warm water after absorbing heat is continuously outflowed from delivery port, the cooling water ring of stabilization is formed in water-cooled portion, keep
To the cooling effect of plastic tube.The vertical section of annular cooling water passage is rectangle, and the internal side diameter wall of annular cooling water passage is to moulding
Thickness between the madial wall of expects pipe cooling duct is uniformly distributed, and is easy to more rapidly and more uniformly radiate.Annular cooling water
Thickness between passage and plastic tube cooling duct is more than or equal to the thickness between heat dam and plastic tube cooling duct.For
The effect of cooling plastic pipe is improved, annular cooling water passage is between the lateral wall and madial wall in water-cooled portion closer to inner side
Wall, i.e., closer to plastic tube so that annular cooling water passage is smaller to the inner side wall thickness between plastic tube cooling duct, but every
The thickness in hot portion is smaller compared to the inner side wall thickness so that the heat for being thermally conducted to water-cooled portion is less and more slowly, so as to play every
The effect of heat.
As depicted in figs. 1 and 2, annular cooling water passage is set side by side with multiple, sets multiple annular cooling water passages, can
Plastics pipe surface is cooled down with multiple positions, improves cooling effect, improve the smoothness of plastics pipe surface.Each annular
The water inlet of cooling-water duct is connected with water inlet pipe respectively, and the delivery port of each annular cooling water passage connects with outlet pipe respectively
It is logical.The water inlet and delivery port of each annular cooling water passage connect water inlet pipe and outlet pipe respectively, rather than joining end to end, make
The cooling water that heat must be absorbed can be discharged more in time, heat be reduced in the water-cooled portion holdup time, so as to further improve water
Cold effect, improves the cooling effect to plastic tube, improves the smoothness of plastics pipe surface.
As depicted in figs. 1 and 2, the end face of the extrusion of mouth mold forming part is provided with annular class's contact surface.The annular step
Level contact surface is set around extrusion, so be annular, and the vertical section of annular class's contact surface is stair-stepping, institute
To be class's contact surface, integrate and be called annular class's contact surface.The connection end end face of mouth mold cooling end is provided with and mouth
The annular step level joint face that annular class's contact surface in mold forming portion is adapted.Annular step level joint face is set around extrusion
Put, so be annular, and the vertical section of annular step level joint face is stair-stepping, so be class's joint face, it is comprehensive to rise
To be called annular step level joint face.Due to being mutually adapted, thus between annular class's contact surface and annular step level joint face it
Between tightly engage, the surface of junction is transferred by multiple so that the junction contact of the two more closely, not easy-to-leak liquid, and
It is more easily aligned and connects and is more firm.
Claims (3)
1. a kind of mouth mold of plastic tube extrusion die, it is characterised in that：Including mouth mold forming part and mouth mold cooling end；The mouth mold
Cooling end is connected to the extrusion of the mouth mold forming part；The mouth mold cooling end is provided centrally with plastic tube cooling duct, institute
The madial wall for stating plastic tube cooling duct is concordant with the madial wall holding of the extrusion of the mouth mold cooling end and smoothly transit；
The end face of the extrusion of the mouth mold forming part is provided with least two screwed holes；
The mouth mold cooling end includes connecting portion, insulation part and water-cooled portion；
The screwed hole of the extrusion end face of the connecting portion correspondence mouth mold forming part is provided with bolt hole, in the bolt hole
Bolt is provided with, the connecting portion is fixedly connected on the extrusion end face of the mouth mold forming part by the bolt；
The insulation part two ends connect the connecting portion and water-cooled portion respectively；The external diameter of the insulation part is less than the connecting portion
External diameter and the external diameter in water-cooled portion, the water-cooled portion, the space between insulation part and connecting portion form annular heat groove；
Annular cooling water passage is provided between the madial wall and lateral wall in the water-cooled portion, in the annular cooling water passage
Heart axle is Chong Die with the central shaft of the plastic tube cooling duct；The annular cooling water passage is provided with water inlet and delivery port；
Thickness between the annular cooling water passage and plastic tube cooling duct is cold with plastic tube more than or equal to the heat dam
But the thickness between passage.
2. the mouth mold of plastic tube extrusion die according to claim 1, it is characterised in that：The annular cooling water passage is simultaneously
Row are provided with multiple, and the water inlet of each annular cooling water passage is connected with water inlet pipe respectively, each described annular cooling
The delivery port of aquaporin is connected with outlet pipe respectively.
3. the mouth mold of plastic tube extrusion die according to claim 1, it is characterised in that：The extrusion of the mouth mold forming part
The end face of mouth is provided with annular class's contact surface；The connection end end face of the mouth mold cooling end is provided with the ring with mouth mold forming part
The annular step level joint face that shape class contact surface is adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621230534.4U CN206201434U (en) | 2016-11-16 | 2016-11-16 | The mouth mold of plastic tube extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621230534.4U CN206201434U (en) | 2016-11-16 | 2016-11-16 | The mouth mold of plastic tube extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206201434U true CN206201434U (en) | 2017-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621230534.4U Active CN206201434U (en) | 2016-11-16 | 2016-11-16 | The mouth mold of plastic tube extrusion die |
Country Status (1)
| Country | Link |
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| CN (1) | CN206201434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819172A (en) * | 2018-07-16 | 2018-11-16 | 德科摩橡塑科技(东莞)有限公司 | Five layers of pipe extrusion die |
-
2016
- 2016-11-16 CN CN201621230534.4U patent/CN206201434U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819172A (en) * | 2018-07-16 | 2018-11-16 | 德科摩橡塑科技(东莞)有限公司 | Five layers of pipe extrusion die |
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