CN202805602U - Handpiece for manufacturing double-wall corrugated pipe - Google Patents
Handpiece for manufacturing double-wall corrugated pipe Download PDFInfo
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- CN202805602U CN202805602U CN2012202937157U CN201220293715U CN202805602U CN 202805602 U CN202805602 U CN 202805602U CN 2012202937157 U CN2012202937157 U CN 2012202937157U CN 201220293715 U CN201220293715 U CN 201220293715U CN 202805602 U CN202805602 U CN 202805602U
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- runner
- flow channel
- internal layer
- distributor
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Abstract
The utility model relates to a handpiece for manufacturing a double-wall corrugated pipe. The handpiece comprises a distribution part, an inner predistribution layer, an outer predistribution layer, a pressing plate and a connecting body which are connected sequentially in an axial direction, wherein the inner predistribution layer is provided with an inner-layer flow channel distribution starting point, an inner-layer distribution flow channel extending to an inner-layer ring flow channel from the inner-layer flow channel distribution starting point, and an outer-layer flow channel hole communicated with an outer-layer ring flow channel; and the outer predistribution layer is provided with an outer-layer flow channel distribution starting point, an outer-layer distribution flow channel extending to the outer-layer ring flow channel from the outer-layer flow channel distribution starting point through the outer-layer flow channel hole, and an inner-layer flow channel hole corresponding to the inner-layer flow channel distribution starting point. Melting bodies can be distributed more evenly by adopting the distribution flow channels. The length of a spiral groove of a spiral distributor can be shortened, and the length of the inner-layer flow channel and the outer layer flow channel also can be shortened, thereby greatly reducing the volume and the weight of the handpiece and lowering the cost. In addition, a die body of the handpiece is shortened, thereby decreasing the power required for heating the die body.
Description
Technical field
The utility model relates to a kind of head, relates in particular to a kind of head for making plastic double-walled corrugated pipe.
Background technology
Double-wall corrugated pipe is that a kind of internal layer is level and smooth, the tubing of outer one-tenth bellows-shaped.Double-wall corrugated pipe die is main parts making double-wall corrugated pipe.Double-wall corrugated pipe die all needs inside and outside two-layer annular channel, the outer wall of the melt forming tubing in the outer annular runner wherein, the inwall of the melt forming tubing in the internal layer annular channel, and when the moulding double-wall corrugated pipe, need between outer melt and internal layer melt, be filled with compressed air.
Existing conventional double-wall corrugated pipe die need to have two spiral distributors.Wherein the external spiral distributor is assigned to the melt of extruding from extruder the outer annular runner; The inside spin distributor is assigned to the melt of extruding from another extruder the internal layer annular channel.Owing to melt is not carried out predistribution, can be assigned to uniformly in the ectonexine annular channel in order to make melt, just must lengthen the helicla flute length of spiral distributor, reach the purpose of melt distributed uniform.Owing to the reason of forming machine (making double-wall corrugated tube apparatus) structure, the ectonexine discharging die orifice of double-wall corrugated pipe die must extend into forming machine inside simultaneously.The existing conventional uniformity of double-wall corrugated pipe die in order to guarantee that the melt circumference flows generally all is the length that lengthens inside and outside layer annular channel, and like this, just so that the structure of head is longer, bulky, cost is higher; Simultaneously, can in head, keep molten condition in order to make plastics, must heat head, because handpiece structure is huge, also will inevitably need more energy consumption.Between outer annular channel and internal layer annular channel, need to have compressed-air actuated passage in addition, because the head die body is longer, so that the processing of compressed air channel is also relatively more difficult.
Therefore, demand a kind of double-wall corrugated pipe die with predistribution runner and small volume urgently.
The utility model content
The utility model has overcome above-mentioned and other shortcoming and defective, hereinafter introduces the utility model in connection with certain embodiment, should be understood that the utility model is not limited to these embodiment.On the contrary, the utility model comprises all modification and improvement in the utility model scope.
A kind of head for making double-wall corrugated pipe of the utility model, it comprises:
The dispenser that connects successively vertically, internal layer beforehand layer, outer beforehand layer, pressing plate and connector;
Described dispenser has and radially goes up the successively internal layer distributor of intussusception, and outer distributor and overcoat form the inner layer ring runner between described internal layer distributor and the outer distributor, form the outer layer ring runner between described outer distributor and the overcoat; Described internal layer beforehand layer has an internal layer runner and distributes starting point, and this distribution starting point extends to the internal layer distribution runner of described inner layer ring runner certainly, and the outer runner hole that communicates with the outer layer ring runner; Described outer beforehand layer has an outer runner and distributes starting point, and this distribution starting point is distributed runner by the skin that described outer runner hole extends to the outer layer ring runner certainly, and distributes internal layer runner hole corresponding to runner start position with described internal layer; Described pressing plate has the inner via hole corresponding with described internal layer runner hole site, distributes accessibke porosity corresponding to start position with described outer runner; Described connector comprises the internal layer connector that links to each other with described inner via hole and the outer connector that links to each other with described accessibke porosity; Wherein, described internal layer distributes the quantity of runner to be at least two, and flow channel length is identical, and the described outer quantity of runner of distributing is at least two, and flow channel length is identical.
It is 2n (n 〉=1) that described internal layer distributes the runner quantity of runner, and the flow passage structure Central Symmetry.The runner quantity of described outer distribution runner is 2n (n 〉=1), and the flow passage structure Central Symmetry.
The melt that the utility model relies on two elongated connectors that inside and outside layer extruder extruded is introduced in the inside and outside layer beforehand layer, and the distribution runner of melt is arranged on the inside and outside layer beforehand layer, and its structure is that runner quantity is 2
nTo external diffusion, namely runner diffuses into two runners since a point to both sides, and then these two runners are divided into four runners to external diffusion again, and then these four runners are divided into eight runners to external diffusion again.So go down, runner finally can be divided into 2
nIndividual runner.The melt of introducing from elongated runner so just can be divided into 2 uniformly through the ectonexine beforehand layer
nStock material stream.
After inside and outside layer beforehand layer, be connected with inside and outside spiral distributor, it is preferably spiral distributor.Spiral distributor has had in blown-film die and plastic pipe head widely to be used.Its structure is that helicla flute is arranged on the spiral distributor, and helicla flute disappearing gradually on the melt flows direction, and there is certain tapering on the surface of spiral distributor.Like this, rely on the distribution of spiral distributor, can be entering 2 in the internal and external screw distributor
nStock material stream is assigned in the annular channel uniformly, and through after of short duration the flowing, melt is extruded from the head die mouth at last in annular channel.
Wherein, above-mentioned connector, the periphery of internal layer distributor and overcoat is enclosed with zone of heating.
Adopt after the above structure, this is novel following technique effect:
1, adopted the predistribution runner, melt distributes more even.The helicla flute length of spiral distributor can shorten, and the length of inside and outside layer annular channel also can shorten, and has greatly dwindled the volume and weight of head, has reduced cost.
2, dwindling of head die body reduced die body and heated needed power, also just reduced the energy consumption of head.
3, the double-wall corrugated pipe die of prior art is because die body is longer, and the difficult processing of compressed air channel often needs die body is divided into a lot of part splicings; And after adopting this novel, the amount of parts of head has had great minimizing, and has reduced the part difficulty of processing.
Description of drawings
Fig. 1 is the double-wall corrugated pipe die sectional structure of the utility model schematic diagram;
Fig. 2 is the outer predistribution plate structure of the utility model schematic diagram;
Fig. 3 is the utility model internal layer predistribution plate structure schematic diagram;
Fig. 4 is double-wall corrugated pipe die sectional structure schematic diagram in the prior art.
The specific embodiment
Fig. 4 is the conventional double-wall corrugated pipe die of prior art, because the melt that extruder is extruded does not pass through predistribution, so require the length of the external spiral of the helicla flute of inside spin distributor 2001 and external spiral distributor 2002 to need longer, owing to the reason of forming machine (making double-wall corrugated tube apparatus) structure, the outer discharging die orifice 2007 of double-wall corrugated pipe die must extend into forming machine inside simultaneously.The existing conventional uniformity of double-wall corrugated pipe die in order to guarantee that the melt circumference flows, generally all be to lengthen outer annular runner 2003, the length of internal layer annular channel 2004, because the length of outer annular runner 2003 and internal layer annular channel 2004 is very long, caused the compressed air channel processing difficulties between two runners, need to split into external spiral distributor 2002 so that can make the part of an integral body originally, outer core rod 2005, interior several parts such as die sleeve 2006 grades are spliced, and allow outer core rod 2005, gap between the inner mould core 2006 becomes compressed-air actuated passage.
Fig. 1, Fig. 2 and Fig. 3 are the schemes of this novel employing, its specific embodiment is: melt that outer extruder is extruded distributes in the starting point 1 through the runner that the runner hole one of the runner hole 1009 of connector 1001 and pressing plate 1003 enters outer beforehand layer 1004, because 1017 one-tenth 2 of the runners of outer beforehand layer 1004
nTo external diffusion, final melt has been divided into 2 through the distribution of outer Distribution Layer 1004 runners 1017
nThigh is melt uniformly.And this 2
nStrand melt continues to have moved forward in the outer spiral distributor 1007, when this 2
nAfter the thigh melt enters helical flow path from each tap hole, because the effect of outer spiral distributor 1007, every one melt streams is divided into two stock materials stream, one is the material stream that axially flows in the gap that helical layer distributor 1007 and overcoat 1006 form outside, another strand is for continuing the forward material stream of helical flow in helicla flute, extruding on the direction, along with spiral fluted disappears, the material stream of axial flow is more and more, the material stream of helical flow is fewer and feweri, finally, the material of helical flow stream all is converted to the material stream of axial flow, and melt just has been assigned to uniformly outer annular runner 1012 and has suffered like this.Because it is very even that melt distributes, after outer annular channel 1012 of short duration flowing, just can from outer die orifice 1014, extrude uniformly.
Equally, melt that the internal layer extruder is extruded is through the runner hole two of the runner hole 1011 of connector 1010 and pressing plate 1003 and pass the runner hole 3 1020 of outer beforehand layer 1003, the runner that enters internal layer beforehand layer 1005 distributes in the starting point 2 1021, because the runner 1018 of internal layer beforehand layer 1005 also becomes 2
nTo external diffusion, final melt has been divided into 2 through the distribution of internal layer beforehand layer 1005
nThigh is melt uniformly.And this 2
nStrand melt continues to have moved forward in the internal layer spiral distributor 1008, when this 2
nAfter the thigh melt enters helical flow path from each tap hole, because the effect of internal layer spiral distributor 1008, every one melt streams is divided into two stock materials stream, one is the material stream that axially flows in the gap that internal layer spiral distributor 1008 and outer spiral distributor 1007 form, another strand is for continuing the forward material stream of helical flow in helicla flute, extruding on the direction, along with spiral fluted disappears, the material stream of axial flow is more and more, the material stream of helical flow is fewer and feweri, finally, the material of helical flow stream all is converted to the material stream of axial flow, and melt just has been assigned to uniformly internal layer annular channel 1013 and has suffered like this.Because it is very even that melt distributes, after internal layer annular channel 1013 of short duration flowing, just can from outer die orifice 1015, extrude uniformly.Because this Novel head length is shorter, so that the processing of compressed air channel 1016 becomes more simple, it is less that the power of heating collar 1002 can become simultaneously.From accompanying drawing 1 as can be known, connector, the periphery of internal layer distributor and overcoat is enclosed with heating collar 1002.
Be preferred embodiment of the present utility model only below, be not limited to the utility model.In the above-described embodiments, the utility model can have various modifications and variations.All in the utility model within the method and principle of Die Design, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Should be noted that, embodiment of the present utility model has better implementation, and be not that the utility model is done any type of restriction, any person skilled in art of being familiar with may utilize the technology contents change of above-mentioned announcement or be modified to the effective embodiment that is equal to, in every case the content that does not break away from technical solutions of the utility model,, all still belong in the scope of technical solutions of the utility model any modification or equivalent variations and modification that above embodiment does according to technical spirit of the present utility model.
Claims (5)
1. head of be used for making double-wall corrugated pipe, it comprises:
The dispenser that connects successively vertically, internal layer beforehand layer, outer beforehand layer, pressing plate and connector;
Described dispenser has and radially goes up the successively internal layer distributor of intussusception, and outer distributor and overcoat form the inner layer ring runner between described internal layer distributor and the outer distributor, form the outer layer ring runner between described outer distributor and the overcoat;
Described internal layer beforehand layer has an internal layer runner and distributes starting point, and this distribution starting point extends to the internal layer distribution runner of described inner layer ring runner certainly, and the outer runner hole that communicates with the outer layer ring runner;
Described outer beforehand layer has an outer runner and distributes starting point, and this distribution starting point is distributed runner by the skin that described outer runner hole extends to the outer layer ring runner certainly, and distributes internal layer runner hole corresponding to runner start position with described internal layer;
Described pressing plate has the inner via hole corresponding with described internal layer runner hole site, distributes accessibke porosity corresponding to start position with described outer runner;
Described connector comprises the internal layer connector that links to each other with described inner via hole and the outer connector that links to each other with described accessibke porosity;
Wherein, described internal layer distributes the quantity of runner to be at least two, and flow channel length is identical, and the described outer quantity of runner of distributing is at least two, and flow channel length is identical.
2. the head for making double-wall corrugated pipe as claimed in claim 1, it is characterized in that: it is 2 that described internal layer distributes the runner quantity of runner
n(n 〉=1), and flow passage structure Central Symmetry.
3. the head for making double-wall corrugated pipe as claimed in claim 1 is characterized in that: described outer to distribute the runner quantity of runner be 2
n(n 〉=1), and flow passage structure Central Symmetry.
4. the head for making double-wall corrugated pipe as claimed in claim 1, it is characterized in that: described connector, the periphery of internal layer distributor and overcoat is enclosed with zone of heating.
5. the head for making double-wall corrugated pipe as claimed in claim 1, it is characterized in that: described inside and outside layer distributor is spiral distributor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202937157U CN202805602U (en) | 2012-06-21 | 2012-06-21 | Handpiece for manufacturing double-wall corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202937157U CN202805602U (en) | 2012-06-21 | 2012-06-21 | Handpiece for manufacturing double-wall corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202805602U true CN202805602U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202937157U Expired - Fee Related CN202805602U (en) | 2012-06-21 | 2012-06-21 | Handpiece for manufacturing double-wall corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202805602U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003656A (en) * | 2016-08-05 | 2016-10-12 | 张家港市金达利模塑有限公司 | Double-wall corrugated pipe extrusion die |
| CN106426866A (en) * | 2016-10-14 | 2017-02-22 | 福州大学 | Center feeding double-layer spiral large-width ultrathin film blowing machine head and work method thereof |
| CN106738827A (en) * | 2016-12-13 | 2017-05-31 | 福州大学 | Adapt to many spiral blown-film dies of resin with high melting point |
| CN107379483A (en) * | 2017-06-26 | 2017-11-24 | 广东联塑科技实业有限公司 | A kind of double-wall corrugated pipe shaping moulds of HDPE |
| CN113290820A (en) * | 2021-05-25 | 2021-08-24 | 昆明电立电缆有限公司 | Cable extrusion double-layer offset-adjustment-free co-extrusion machine head and processing technology thereof |
-
2012
- 2012-06-21 CN CN2012202937157U patent/CN202805602U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003656A (en) * | 2016-08-05 | 2016-10-12 | 张家港市金达利模塑有限公司 | Double-wall corrugated pipe extrusion die |
| CN106003656B (en) * | 2016-08-05 | 2018-03-06 | 张家港市金达利模塑有限公司 | Double-wall corrugated pipe extrusion die |
| CN106426866A (en) * | 2016-10-14 | 2017-02-22 | 福州大学 | Center feeding double-layer spiral large-width ultrathin film blowing machine head and work method thereof |
| CN106738827A (en) * | 2016-12-13 | 2017-05-31 | 福州大学 | Adapt to many spiral blown-film dies of resin with high melting point |
| CN107379483A (en) * | 2017-06-26 | 2017-11-24 | 广东联塑科技实业有限公司 | A kind of double-wall corrugated pipe shaping moulds of HDPE |
| CN107379483B (en) * | 2017-06-26 | 2020-11-06 | 广东联塑科技实业有限公司 | HDPE double-wall corrugated pipe forming die |
| CN113290820A (en) * | 2021-05-25 | 2021-08-24 | 昆明电立电缆有限公司 | Cable extrusion double-layer offset-adjustment-free co-extrusion machine head and processing technology thereof |
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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: 20130320 Termination date: 20170621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |