CN202071319U - Double-walled corrugated pipe extrusion machine head and mandrel of same - Google Patents
Double-walled corrugated pipe extrusion machine head and mandrel of same Download PDFInfo
- Publication number
- CN202071319U CN202071319U CN2011201315956U CN201120131595U CN202071319U CN 202071319 U CN202071319 U CN 202071319U CN 2011201315956 U CN2011201315956 U CN 2011201315956U CN 201120131595 U CN201120131595 U CN 201120131595U CN 202071319 U CN202071319 U CN 202071319U
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- China
- Prior art keywords
- double
- corrugated pipe
- extruder head
- wall corrugated
- leg
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- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a double-walled corrugated pipe extrusion machine head mandrel, which comprises a fixed end and a suspension end, wherein the fixed end is fixedly connected to a double-walled corrugated pipe extrusion machine head, and the suspension end is positioned at an outlet of a port mould device of the extrusion machine head. A pin abutted to the inner wall of the port mould device is fixed to the outer periphery of the mandrel. Since the pin abutted to the inner wall of the port mould device is fixed to the outer periphery of the mandrel, the position of the mandrel relative to the port mould device is more stable, the mandrel inside the port mould device is not easy to deform, and coaxiality between the mandrel and the port mould device can be effectively guaranteed.
Description
Technical field
The utility model relates to the plant equipment field, relates to a kind of double-wall corrugated pipe extruder head and excellent core thereof more specifically.
Background technology
Double-wall corrugated pipe is a kind of novel tube with circulus outer wall and smooth internal walls, and it develops into complete product line by single kind through years of development and perfect.At present double-wall corrugated pipe is relative ripe on production technology and operation technique.
Plastic double-walled corrugated pipe is as a kind of novel light tubing of energy savings, and it has, and proportion is little, cost is low, proof to external pressure, intensity height, long service life and advantage such as easy for installation.At present, plastic double-walled corrugated pipe is mainly used in the field such as subdrainage blowdown, rainwater collection, farmland discharging-irrigating, industrial wastewater discharge of urban construction.Eliminating pipe of concrete, cast iron pipe, ceramic sintering pipe etc. is trend of the times, and developed country bans use of these to have the tubing of severe contamination legally.China is also with in line with international standards, and at present, the large-bore plastics double-wall corrugated pipe has occupied the increasing market share in the draining blowdown of China's urban construction.
The double-wall corrugated pipe production line is by extruder head, make-up machine, spraying box, cutting machine, turns over equipment such as pipe support and constitute.Wherein extruder head comprise mouthful die device and with the suitable excellent core of mouthful die device, a mouthful die device is specially tubular structure, excellent core is as the core rod of mouth die device, its coaxial inside that is arranged at mouthful die device.In the production process, the plastics of fusing are squeezed in the mouth die device of head, the one side that the plastics of molten state contact with excellent core forms the inwall of plastic tube, the one side that contacts with the mouth die device forms the outer wall of plastic tube, the plastics of molten state riddle the space between excellent core and mouthful die device, form plastic tube.In the production process, excellent core need guarantee to have accurate axiality with a mouthful die device, can guarantee that the wall thickness of plastic tube is even.
Yet in the prior art, excellent core one end is fixedlyed connected with head, and the other end is suspended on a mouthful die device.So the end that excellent core is suspended on mouthful die device is owing to gravity effect or other reason, its axiality with mouthful die device is difficult to guarantee that problem of non-uniform often appears in the wall thickness of the plastic tube of producing, and then influences the qualification rate of plastic tube.
Therefore, how to guarantee that an excellent core and a mouthful die device have axiality preferably, become those skilled in the art's important technological problems to be solved.
The utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of double-wall corrugated pipe extruder head rod core, can guarantee effectively that itself and a mouthful die device have axiality preferably.The utility model also provides a kind of double-wall corrugated pipe extruder head that comprises above-mentioned double-wall corrugated pipe extruder head rod core.
A kind of double-wall corrugated pipe extruder head rod core that the utility model provides, comprise the stiff end of fixedlying connected and be positioned at mouthful free end of die device exit position that the outer peripheral face of described double-wall corrugated pipe extruder head rod core is fixed with the leg that the inwall with mouthful die device offsets with the double-wall corrugated pipe extruder head.
Preferably, described leg is fixed in the outer peripheral face near the free end of described double-wall corrugated pipe extruder head rod core.
Preferably, described leg is a tab-like leg, and the side of described tab-like leg parallels with the axial line of described double-wall corrugated pipe extruder head rod core.
Preferably, described tab-like leg is a plurality of, and is distributed in the outer peripheral face of described double-wall corrugated pipe extruder head rod core uniformly, and each described tab-like leg all offsets with the inwall of mouth die device.
Preferably, described tab-like leg is four, and four described legs are distributed in the outer peripheral face of described double-wall corrugated pipe extruder head rod core uniformly.
Preferably, described tab-like leg is shaped as triangle.
Preferably, described tab-like leg is shaped as rectangle.
Preferably, described tab-like leg and described double-wall corrugated pipe extruder head rod core is an integral structure.
Preferably, described mouthful of die device inside is provided with above-mentioned each described double-wall corrugated pipe extruder head rod core.
The double-wall corrugated pipe extruder head rod core that the utility model provides, comprise stiff end that is fixedly connected on the double-wall corrugated pipe extruder head and the free end that is positioned at extruder draught animals die device exit position and the leg that its outer peripheral face is fixed with and the inwall of mouthful die device offsets.It is pointed out that double-wall corrugated pipe extruder head rod core is arranged at a mouthful die device inside, and with the coaxial setting of mouth die device.When very moment die device inside charged into the plastics of molten state, excellent core was as the core of mouth die device, and plastic tube is formed between mouthful die device and the excellent core.The double-wall corrugated pipe extruder head rod core that the utility model provides, its outer peripheral face is fixed with the leg that the inwall with mouthful die device offsets, so excellent core is more stable with the relative position of mouthful die device, and excellent core is difficult for deforming in mouth die device inside, effectively guaranteed the axiality between the two.
In the preferred version of the present utility model, leg is a tab-like leg, and the side of tab-like leg parallels with the axial line of double-wall corrugated pipe extruder head rod core.It is pointed out that mouthful die device inside constantly has the plastics of molten state to charge into, and the port of export of mouthful die device needs constantly to derive the plastic tube of one-step forming just.In the preferred version of the present utility model, leg is a tab-like leg, and its side parallels with excellent core axial line.So be provided with, the plastics of molten state are divided into two parts leg of flowing through by this leg, because it is a flaky texture, the stream of plastic of molten state is after tab-like leg, the distance that is separated between two parts is less, so these two parts can combine together rapidly, can effectively avoid the plastic tube of its formation the problem of slight crack to occur.
Description of drawings
Fig. 1 is the structural representation of double-wall corrugated pipe extruder head rod core in the utility model specific embodiment.
The specific embodiment
The utility model provides a kind of double-wall corrugated pipe forming machine, and it is less with respect to the required forming module of the double-wall corrugated pipe forming machine of prior art, effectively reduces its manufacturing and operating cost.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1, Fig. 1 is the structural representation of double-wall corrugated pipe extruder head rod core in the utility model specific embodiment.
Double-wall corrugated pipe extruder head rod core provided in the present embodiment comprises the stiff end 111 of fixedlying connected with the double-wall corrugated pipe extruder head and is positioned at mouthful free end 112 of die device (not shown) exit position.It is pointed out that above-mentioned mouthful of die device means the die device of double-wall corrugated pipe extruder head, excellent core is the core of mouthful die device.Double-wall corrugated pipe extruder head provided in the present embodiment rod core, its outer peripheral face are fixed with the leg that the inwall with mouthful die device offsets.
It is pointed out that a double-wall corrugated pipe extruder head rod core and a mouthful die device, the axial line of the two need overlap, and promptly the two need have higher axiality and can guarantee that the wall thickness of the plastic tube that processed by the mouth die device is even.
So be provided with, double-wall corrugated pipe extruder head rod core provided in the present embodiment, its stiff end is fixed in extruder head, and its outer peripheral face is provided with the leg of the inwall that is connected to mouthful die device.But this leg support stick core is avoided it to deform and is caused its axial line and the axial line of mouthful die device to misplace, and then causes and problem that plastic tube wall thickness ununiformity that mouthful die device processes is spared.
In the preferred version of this specific embodiment, leg is fixed on the outer peripheral face near the free end 112 of excellent core, and the position that promptly excellent core is provided with leg is away from its stiff end 111.So be provided with, leg is shorter to the distance of free end 112, and the deformation of the stressed generation of excellent core is less, and then, can further improve the reliability that excellent core and mouthful die device have axiality.
The plastic tube that it is pointed out that the first one-step forming that forms in the mouth die device need constantly be output, so the plastic tube that is output must be subjected to the effect of cutting apart of leg, and then cause plastic tube have defectives such as crackle.
For fear of above-mentioned technical problem, double-wall corrugated pipe extruder head core provided in the present embodiment, its leg can be specially tab-like leg 113.Should be appreciated that above-mentioned tab-like leg 113 means the leg that thickness is less, and its parallel sided promptly is parallel to the direction of flowing through of the plastics of molten state in the axial line of double-wall corrugated pipe extruder head rod core.It is pointed out that above-mentioned tab-like leg 113 need have certain bearing capacity, so that have enough strength support double-wall corrugated pipe extruder head rod cores.
So be provided with, double-wall corrugated pipe extruder head rod core provided in the present embodiment, when the stream of plastic of fusing during through its tab-like leg 113, plastics are divided into two parts by tab-like leg 113, because the thickness of tab-like leg 113 is less, be split into two-part plastics close together, after its process tab-like leg 113, being split into two-part plastics can combine together rapidly.So, effectively avoided the sidewall of plastic tube problems such as crackle to occur.
In order further to improve the reliability that double-wall corrugated pipe extruder head rod core and mouthful die device have accurate axiality, double-wall corrugated pipe extruder head rod core provided in the present embodiment, its tab-like leg 113 can be a plurality of, a plurality of tab-like leg 113 are distributed in the outer peripheral face of double-wall corrugated pipe extruder head rod core uniformly, and each tab-like leg 113 all offsets with the inwall of mouth die device.
Such as, tab-like leg 113 can be specially four, and four tab-like leg 113 are distributed in the periphery of excellent core uniformly, promptly every 90 degree a tab-like leg 113 is set, and these four tab-like leg 113 all offset with the inwall of mouth die device.Certainly, the quantity of tab-like leg 113 also can be two, three or five etc., and the utility model is not done concrete qualification to the quantity of tab-like leg 113.
So be provided with, double-wall corrugated pipe extruder head rod core, the support force of its suffered tab-like leg 113 is more even, and four direction all is subjected to the supporting role of tab-like leg 113.Obviously, can guarantee further that double-wall corrugated pipe extruder head rod core has more accurate axiality with a mouthful die device.
In addition, it is pointed out that the shape of tab-like leg 113 can be specially triangle, certainly, also can be other shape, such as, rectangle, circle, abnormity etc. only need it can support double-wall corrugated pipe extruder head rod core and get final product.
In order to make being connected between tab-like leg 113 and the excellent core body of double-wall corrugated pipe extruder head provided in the present embodiment rod core have more reliability, double-wall corrugated pipe extruder head rod core provided in the present embodiment, its tab-like leg 113 is an integral structure with excellent core body, it can realize integral structure in the following way, such as, welding, casting etc.
So be provided with, can guarantee effectively that the tab-like leg 113 of double-wall corrugated pipe extruder head rod core is connected reliably with excellent core body.
Certainly, tab-like leg 113 also can be split-type structural with excellent core body, and it can be matched with together in the following way.The periphery of double-wall corrugated pipe extruder head rod core can radially be provided with the draw-in groove (not shown) of ccontaining tab-like leg 113, and tab-like leg 113 can be assemblied in excellent core body by this draw-in groove.
This specific embodiment also provides a kind of double-wall corrugated pipe extruder head, and it comprises a mouthful die device (not shown), and mouthful die device inside is provided with the double-wall corrugated pipe extruder head rod core that above-mentioned arbitrary specific embodiment provides.
So be provided with, double-wall corrugated pipe extruder head provided in the present embodiment, its excellent core has more accurate and stable axiality with a mouthful die device, has guaranteed that effectively the wall thickness of the plastic tube that it is produced has uniformity preferably, has effectively improved the qualification rate of double-wall corrugated pipe.The derivation broadly similar of the beneficial effect that the double-wall corrugated pipe extruder head that the derivation and the above-mentioned specific embodiment the provided rod core of the beneficial effect that double-wall corrugated pipe extruder head provided in the present embodiment brings brings is so this paper repeats no more.
More than a kind of double-wall corrugated pipe forming machine provided by the utility model is described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (9)
1. double-wall corrugated pipe extruder head rod core, comprise the stiff end of fixedlying connected and be positioned at mouthful free end of die device exit position with the double-wall corrugated pipe extruder head, it is characterized in that the outer peripheral face of described double-wall corrugated pipe extruder head rod core is fixed with the leg that the inwall with mouthful die device offsets.
2. double-wall corrugated pipe extruder head rod core as claimed in claim 1 is characterized in that described leg is fixed in the outer peripheral face near the free end of described double-wall corrugated pipe extruder head rod core.
3. double-wall corrugated pipe extruder head rod core as claimed in claim 2 is characterized in that described leg is a tab-like leg, and the side of described tab-like leg parallels with the axial line of described double-wall corrugated pipe extruder head rod core.
4. double-wall corrugated pipe extruder head rod core as claimed in claim 3, it is characterized in that, described tab-like leg is a plurality of, and is distributed in the outer peripheral face of described double-wall corrugated pipe extruder head rod core uniformly, and each described tab-like leg all offsets with the inwall of mouth die device.
5. double-wall corrugated pipe extruder head as claimed in claim 4 rod core is characterized in that described tab-like leg is four, and four described legs are distributed in the outer peripheral face of described double-wall corrugated pipe extruder head rod core uniformly.
6. double-wall corrugated pipe extruder head as claimed in claim 5 rod core is characterized in that, described tab-like leg be shaped as triangle.
7. double-wall corrugated pipe extruder head as claimed in claim 5 rod core is characterized in that, described tab-like leg be shaped as rectangle.
8. as each described double-wall corrugated pipe extruder head rod core of claim 3-7, it is characterized in that described tab-like leg and described double-wall corrugated pipe extruder head rod core are integral structure.
9. a double-wall corrugated pipe extruder head comprises the membrana oralis device, it is characterized in that, described mouthful of die device inside is provided with each described double-wall corrugated pipe extruder head rod core as claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201315956U CN202071319U (en) | 2011-04-22 | 2011-04-22 | Double-walled corrugated pipe extrusion machine head and mandrel of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201315956U CN202071319U (en) | 2011-04-22 | 2011-04-22 | Double-walled corrugated pipe extrusion machine head and mandrel of same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202071319U true CN202071319U (en) | 2011-12-14 |
Family
ID=45109428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201315956U Expired - Fee Related CN202071319U (en) | 2011-04-22 | 2011-04-22 | Double-walled corrugated pipe extrusion machine head and mandrel of same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202071319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112384352A (en) * | 2018-07-03 | 2021-02-19 | 康宁股份有限公司 | Extrusion device with fixed profile |
-
2011
- 2011-04-22 CN CN2011201315956U patent/CN202071319U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112384352A (en) * | 2018-07-03 | 2021-02-19 | 康宁股份有限公司 | Extrusion device with fixed profile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20140422 |