CN209350847U - Small-bore double-wall corrugated pipe squeezes out head - Google Patents
Small-bore double-wall corrugated pipe squeezes out head Download PDFInfo
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- CN209350847U CN209350847U CN201822269884.7U CN201822269884U CN209350847U CN 209350847 U CN209350847 U CN 209350847U CN 201822269884 U CN201822269884 U CN 201822269884U CN 209350847 U CN209350847 U CN 209350847U
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Abstract
The utility model discloses small-bore double-wall corrugated pipes to squeeze out head, is equipped with major diameter section, undergauge section and path section；It compresses end cap and is installed with die sleeve, outer layer screw-casing and internal layer screw-casing, die sleeve front end is equipped with housing, outer layer screw-casing front end is equipped with outer layer core model installation set, outer layer core model installation set front end is equipped with outer layer core model, outer layer core model and outer inner room form outer layer discharge port, and there is the outer layer spiral feeding-passage being connected to outer layer discharge port in outer layer screw-casing outer surface；Outer layer screw-casing front end is additionally provided with middle set, middle set front end is equipped with internal layer mouth mold, there is axial spacing between internal layer mouth mold and outer layer core model, the internal layer core model installation set covered in the stretching of front end is equipped with inside middle set, internal layer core model installation set front end is equipped with internal layer core model, internal layer discharge port is formed between internal layer core model and internal layer mouth mold, internal layer screw-casing outer surface is equipped with the internal layer spiral feeding-passage being connected to internal layer discharge port；Die sleeve is equipped with the feed inlet of outer layer and internal layer.Diameter is able to achieve to be less thanDouble-wall corrugated pipe production.
Description
Technical field
The utility model belongs to plastic pipe extruder head technical field more particularly to a kind of small-bore double-wall corrugated pipe squeezes
Head out.
Background technique
Common plastic double-walled corrugated pipe head is commonly available to processing diameter and is greater thanThe heavy caliber of millimeter bore
Tubing, few diameters that are capable of processing are less thanThe extrusion head of the double-wall corrugated pipe of millimeter, it is existing for small-bore double
The extrusion head technology of wall bellows is not mature enough, and is had the following deficiencies:
1, existing small-bore double-wall corrugated pipe squeezes out head and the inclined wall regulating device of internal layer is arranged at internal layer core model, adjusts
When the inclined wall of whole internal layer, when needing to adjust at internal layer core model, but producing small-bore corrugated pipe, the position of internal layer core model is to stretch
Enter in molding machine, needs to stop production when adjusting inclined wall, be adjusted again after head is extracted out out of molding machine, operation is not
Just, and delay production, reduce production efficiency.
2, existing small-bore double-wall corrugated pipe squeezes out head internal layer feed inlet and outer layer feed inlet is arranged in machine
The left and right sides of head body, is spaced a distance in internal layer feed inlet and outer layer feed inlet axial direction, and internal layer feed inlet and outer layer
Farther out apart from the distance of internal layer mouth mold and outer layer mouth mold, material is melt state squeezing out in head to feed inlet, i.e. melt is from charging
Mouth flow to the distance of the process of discharge port, and the time needed is more, and is easy cooling during melt flows and becomes sticky, stream
Dynamic property is deteriorated, and extends finding time for bellows pipe, is not able to satisfy the needs of high-speed production.
3, the internal layer conveyor screw front end that existing small-bore double-wall corrugated pipe squeezes out head is equipped with internal layer core model, internal layer spiral shell
The outer layer conveyor screw front end in rotation external week is equipped with internal layer mouth mold, the outer layer mouth mold installation set front end installation of outer layer conveyor screw periphery
There is outer layer mouth mold, i.e., and internal layer core model periphery is equipped with internal layer mouth mold, and internal layer mouth mold periphery is provided with outer layer mouth mold, internal layer core model
Internal layer discharge port is formed between internal layer mouth mold, and outer layer discharge port, internal layer discharge port are formed between internal layer mouth mold and outer layer mouth mold
Be located substantially at same axial position with outer layer discharge port, " multilayer is nested " structure of this alignment thereof make to outer layer mouth mold,
The requirement on machining accuracy of internal layer mouth mold is higher, and equipment cost is high, and is not easy to install and repair.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of small-bore double-wall corrugated pipes to squeeze out head, is able to achieve
Diameter is less thanThe production of the small-bore bellows of millimeter fast implements the inclined wall of adjustment, adjusts inclined wall without shutting down, is able to satisfy
The needs of high-speed production.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of small-bore double-wall corrugated pipe extrusion head, the head are installed in rack, which is characterized in that the head
With the major diameter section, undergauge section and path section being sequentially arranged；The head includes:
The compression end cap being fixedly installed in the rack, the compression end cap are fixedly connected with die sleeve, are located at the mould
Outer layer screw-casing inside set and the internal layer screw-casing inside the outer layer screw-casing, the front end of the die sleeve are equipped with outer
Set, the front end of the outer layer screw-casing are equipped with outer layer core model installation set, and the front end of the outer layer core model installation set is equipped with outer
Layer core model, forms outer layer discharge port, the outer surface of the outer layer screw-casing is provided between the outer layer core model and the housing
The outer layer spiral feeding-passage being connected to the outer layer discharge port；
The front end of the outer layer screw-casing is also equipped with the middle set inside the outer layer core model installation set, the middle set
Front end internal layer mouth mold is installed, there are axial spacing between the internal layer mouth mold and the outer layer core model, the middle set it is interior
Portion is provided with the internal layer core model installation set that the middle set is stretched out in front end, and the front end of the internal layer core model installation set is equipped with internal layer core
Mould forms internal layer discharge port between the internal layer core model and the internal layer mouth mold, the outer surface of the internal layer screw-casing is provided with
The internal layer spiral feeding-passage being connected to the internal layer discharge port；
The die sleeve is provided with the outer layer feed inlet being connected with the outer layer spiral feeding-passage and the internal layer spiral
The internal layer feed inlet that feeding-passage is connected.
Preferably, the head is provided with the inclined wall regulating device of internal layer, and the inclined wall regulating device of internal layer includes: the first tune
Section bolt, interior adjusting sleeve and tight sleeve, the tight sleeve are connect with the threaded one end of the interior adjusting sleeve, and multiple described first adjust
Section bolt along the compression end cap circumferential array and extends to the tight sleeve outer peripheral surface, and the internal layer screw-casing is internally provided with
The interior adjusting sleeve, and it is provided with the anti-rotation device for preventing the interior adjusting sleeve rotation, the both ends difference of the internal layer screw-casing
Equipped with concentric the first spherical surface and the second spherical surface, the rear end of the internal layer core model installation set and the front end of the interior adjusting sleeve are fixed
Connection, and the rear end of the internal layer core model installation set is provided with third spherical surface compatible with first spherical surface, the top
Fixed front end is provided with the 4th spherical surface compatible with second spherical surface, and described first, which adjusts bolt, adjusts the interior adjustment
Set and the internal layer core model installation set are swung around the centre of sphere of first spherical surface and the second spherical surface.
Preferably, the anti-rotation device include be set to keyway inside the interior adjusting sleeve and the internal layer screw-casing and
The key to match with the keyway.
Preferably, the rear end of the housing is provided with housing flange, is provided with die sleeve pressure ring before the housing flange,
The housing is fixed by wearing the threaded fastener of the die sleeve pressure ring with the die sleeve.
Preferably, the head is provided with the inclined wall regulating device of outer layer, and the inclined wall regulating device of outer layer includes along described
Multiple the second of die sleeve circumferential array adjust bolt, and described second, which adjusts bolt, passes through the die sleeve and against the housing flange
Circumferential surface.
Preferably, the outer layer feed inlet and the internal layer feed inlet are located at the die sleeve two sides, and are oppositely arranged.
Preferably, air passage, the gas outlet of the air passage are formed between the outer layer core model installation set and the middle set
Corresponding to the axial spacing between the internal layer mouth mold and the outer layer core model.
Preferably, the internal layer core model installation set is internally provided with electric heater unit.
Compared with prior art, the utility model has the beneficial effects that
The extrusion head of the utility model is able to achieve diameter and is less thanThe production of the small-bore bellows of millimeter, and energy
Realize high-speed production.
In production process, the inclined wall of internal layer can be carried out to the pipe of production and the inclined wall of outer layer is adjusted, the inclined wall of internal layer is adjusted
Device, which is located at, to be compressed at end cap, is adjusted by the first adjusting bolt, the setting of outer layer inclined wall regulating device in die sleeve front end and
The rear end of housing is adjusted by the second adjusting bolt, when either adjusting the adjustment inclined wall of internal layer and still adjusting the inclined wall of outer layer,
It is adjusted again without that will squeeze out after head is extracted out out of molding machine, it is easy to operate without stopping production, do not delay production, mentions
High efficiency.
The two sides that head is arranged in outer layer feed inlet and outer layer discharge port are oppositely arranged, with outer layer discharging mouth mold and interior discharging
Mouthful distance it is close, and internal layer core model installation set is internally provided with electric heater unit, prevents during melt flows because of temperature
It reduces and becomes sticky, fluidity of molten is prevented to be deteriorated, shorten time of the melt in feeding-passage, meet the need of high-speed production
It wants.
There are axial spacing between the internal layer mouth mold and the outer layer core model, internal layer discharge port and outer layer discharge port are axial
There are spacing, reduce the requirement on machining accuracy to internal layer mouth mold and outer layer core model, be easy for installation and maintenance, reduce equipment at
This.
Detailed description of the invention
Fig. 1 is that small-bore double-wall corrugated pipe squeezes out head overlooking structure diagram；
Fig. 2 is the schematic cross-sectional view that small-bore double-wall corrugated pipe squeezes out head；
Fig. 3 is the B direction view of Fig. 2；
Fig. 4 is C-C schematic cross-sectional view in Fig. 1；
Fig. 5 is the structural schematic diagram of internal layer screw-casing in Fig. 2；
Fig. 6 is the structural schematic diagram of tight sleeve in Fig. 2；
Fig. 7 is the enlarged structure schematic diagram of internal layer core model installation set in Fig. 2；
In figure: A1Major diameter section, A2Undergauge section, A3Path section, 1- outer layer discharge port, 11- die sleeve, 12- housing, 13- mould
Cover pressure ring, 2- internal layer discharge port, 21- outer layer screw-casing, 22- outer layer core model installation set, 23- outer layer core model covers in 24-, in 25-
Layer mouth mold, 31- internal layer screw-casing, the first spherical surface of 311-, the second spherical surface of 312-, 32- internal layer core model installation set, 321- third ball
Face, 33- internal layer core model, 34- key, adjusting sleeve in 35-, 36- tight sleeve, the 4th spherical surface of 361-, 4- compress end cap, the charging of 5- internal layer
Mouthful, 51- internal layer spiral feeding-passage, 6- outer layer feed inlet, 61- outer layer spiral feeding-passage, the adjusting bolt of 7- first, 8- second
Adjust bolt, 9- rack, J- heating device, Q- air passage.
Specific embodiment
Technical solutions of the utility model are described in detail in the following with reference to the drawings and specific embodiments, with further
Understand the purpose of this utility model, scheme and effect, but is not intended as the limit of the appended claims for the utility model protection scope
System.
For ease of description, definition discharging is " preceding ", feed as " rear ".
The front end for squeezing out head is insert molded machine, and the raw material of thawing is by squeezing out head extrusion Double-layer pipe pipe, pipe
Double-wall corrugated pipe is made by bellow mold into molding machine.
Small-bore double-wall corrugated pipe as shown in Figures 1 to 4 squeezes out head, a kind of small-bore double-wall corrugated pipe extruder
Head, head are installed in rack 9, and head has the major diameter section A being sequentially arranged1, undergauge section A2With path section A3.Head includes: solid
Dingan County compresses end cap 4 and is fixedly connected with die sleeve 11, the outer layer spiral inside die sleeve 11 loaded on the compression end cap 4 in rack 9
Set 21 and the internal layer screw-casing 31 inside outer layer screw-casing 21, the front end of die sleeve 11 are equipped with housing 12, outer layer screw-casing
21 front end is equipped with outer layer core model installation set 22, and the front end of outer layer core model installation set 22 is equipped with outer layer core model 23, outer layer core
Outer layer discharge port 1 is formed between mould 23 and housing 12, the outer surface of outer layer screw-casing 21, which is provided with, to be connected to outer layer discharge port 1
Outer layer spiral feeding-passage 61.
The front end of outer layer screw-casing 21 is also equipped with the middle set 24 inside outer layer core model installation set 22, before middle set 24
End is equipped with internal layer mouth mold 25, and there are axial spacing between internal layer mouth mold 25 and outer layer core model 23, middle set 24 is internally provided with
The internal layer core model installation set 32 of set 24 in the stretching of front end, the front end of internal layer core model installation set 32 is equipped with internal layer core model 33, internal layer
Internal layer discharge port 2 is formed between core model 33 and internal layer mouth mold 25, the outer surface of internal layer screw-casing 31 is provided with and internal layer discharge port 2
The internal layer spiral feeding-passage 61 of connection.
Die sleeve 11 is provided with the outer layer feed inlet 6 being connected with outer layer spiral feeding-passage 61, leads to the charging of internal layer spiral
The internal layer feed inlet 5 that road 51 is connected.Since there are axial spacing, i.e. internal layer discharges between internal layer mouth mold and the outer layer core model
Mouth 5 is axial there are spacing with outer layer discharge port 6, reduces the requirement on machining accuracy to internal layer mouth mold 25 and outer layer core model 23, just
In installation and maintenance, equipment cost is reduced.
As shown in Figures 2 and 3, head is provided with the inclined wall regulating device of internal layer, and the inclined wall regulating device of internal layer includes: the first tune
Section bolt 7, interior adjusting sleeve 35 and tight sleeve 36, tight sleeve 36 are connect with the threaded one end of interior adjusting sleeve 35, and multiple first are adjusted
For bolt 7 along compressing 4 circumferential array of end cap and extending to 36 outer peripheral surface of tight sleeve, internal layer screw-casing 31 is internally provided with interior adjusting sleeve
35, and it is provided with the anti-rotation device for preventing interior adjusting sleeve 35 from rotating, the both ends of internal layer screw-casing 31 are respectively equipped with concentric first
Spherical surface 311 and the second spherical surface 312, the rear end of internal layer core model installation set 32 are fixedly connected with the front end of interior adjusting sleeve 35, and interior
The rear end of layer core model installation set 32 is provided with third spherical surface 321 compatible with the first spherical surface 311, the front end setting of tight sleeve 36
There is the 4th spherical surface 361 compatible with the second spherical surface 312, the first adjusting bolt 7 adjusts interior adjusting sleeve 35 and the installation of internal layer core model
Set 32 is swung around the centre of sphere of first spherical surface 311 and the second spherical surface 312.
As shown in Figures 5 to 7, the center of circle of the first spherical surface 311, the second spherical surface 312, third spherical surface 321 and the 4th spherical surface 361
It is O1, the radius of the first spherical surface 311 is R1, the radius of the second spherical surface 312 is R2, the radius of third spherical surface 321 is R3, the 4th
The radius of spherical surface 361 is R4.The first adjustment bolt 7 is provided with 4 in the present embodiment.Anti-rotation device includes being set to interior adjusting sleeve
35 and internal layer screw-casing 31 inside keyway and the key 34 that matches with keyway.
The inclined wall adjustment process of internal layer and principle: then 36 rotated back of tight sleeve adjusts diametrically as needed
Two the first adjustment bolts 7, a diameter in the two opposite the first adjustment bolts 7 are drawn back, then another needs radial direction
Advance, when adjusting the first adjustment bolt 7, tight sleeve 36 drives interior adjusting sleeve 35 and internal layer core model installation set 32 around the first spherical surface
311 and second the centre of sphere of spherical surface 312 swing, swung at this time with the fixed internal layer core model 33 of internal layer core model installation set 32, and internal layer
Mouth mold 25 is motionless, the then variation of discharge port 2 between internal layer mouth mold 25 and internal layer core model 33, so as to adjust the extrusion of discharge port 2
Pipe pipe thickness (keeping pipe thickness uniform, to prevent tube wall from the even phenomenon of became uneven occur), after adjusting the inclined wall of pipe,
Tight sleeve 36 is tightened forward.
The rear end of housing 12 is provided with housing flange, and die sleeve pressure ring 13 is provided with before housing flange, and housing 12 passes through
Threaded fastener and the die sleeve 11 for wearing die sleeve pressure ring 13 are fixed.Head is provided with the inclined wall regulating device of outer layer, the inclined wall tune of outer layer
Regulating device includes adjusting bolt 8 along multiple the second of 11 circumferential array of die sleeve, and second, which adjusts bolt 8, passes through die sleeve 11 and against outer
Cover the circumferential surface of flange.Second adjusting bolt 8 is provided with 4 in the circumferential direction of die sleeve 11, adjacent two second adjusting bolts 8 interval
90 °, opposite 180 ° of two bolt spacings.
The inclined wall adjustment process of outer layer and principle, unscrew the connection bolt of die sleeve pressure ring 13 Yu 11 end face of die sleeve, then adjust
Two second opposite adjusting bolts 8, the second adjusting bolt 8 changes the radial position of housing 12, so that outer layer discharges
The inclined wall variation of the pipe that mouth 1 squeezes out has achieved the purpose that the inclined wall adjustment of outer layer, has locked the connection of 11 end face of die sleeve after adjusting again
Bolt.
Air passage Q is formed between outer layer core model installation set 22 and middle set 24, the gas outlet of air passage Q corresponds to internal layer mouth mold
Axial spacing between 25 and outer layer core model 23.
As shown in Figure 1 and Figure 4, outer layer feed inlet 6 and outer layer discharge port 1 are located at 11 two sides of die sleeve, and are oppositely arranged.And
And (housing 12 functions as traditional machine apart from 12 end of internal layer mouth mold 15 and housing for internal layer feed inlet 5 and outer layer feed inlet 6
The outer layer mouth mold of head) be closer, i.e. the material of melt state Distance Shortened that the process of discharge port is flow to from feed inlet, internal layer
Core model installation set 32 is internally provided with electric heater unit J, and electric heater unit J is set as resistive heater, plays to melt shape
The effect that the material of state is kept the temperature, prevents the material of melt state sticky because of cooling, so that the material of melt state is readily flowed, contracting
Time of the short melt in feeding-passage, meet the needs of high-speed production.
The utility model is not limited to the above embodiment, all design, principle, structure and sides based on the utility model
Method, the various improvement made, is within the protection scope of the utility model.
Claims (8)
1. a kind of small-bore double-wall corrugated pipe squeezes out head, the head is installed in rack, which is characterized in that the head tool
There are the major diameter section, undergauge section and path section being sequentially arranged；The head includes:
The compression end cap being fixedly installed in the rack, the compression end cap are fixedly connected with die sleeve, are located in the die sleeve
The outer layer screw-casing in portion and the internal layer screw-casing inside the outer layer screw-casing, the front end of the die sleeve are equipped with housing,
The front end of the outer layer screw-casing is equipped with outer layer core model installation set, and the front end of the outer layer core model installation set is equipped with outer layer core
Mould forms outer layer discharge port between the outer layer core model and the housing, the outer surface of the outer layer screw-casing is provided with and institute
State the outer layer spiral feeding-passage of outer layer discharge port connection；
The front end of the outer layer screw-casing is also equipped with the middle set inside the outer layer core model installation set, before the middle set
End is equipped with internal layer mouth mold, and there are axial spacing between the internal layer mouth mold and the outer layer core model, the inside of the middle set is set
It is equipped with the internal layer core model installation set that the middle set is stretched out in front end, the front end of the internal layer core model installation set is equipped with internal layer core model,
Internal layer discharge port is formed between the internal layer core model and the internal layer mouth mold, the outer surface of the internal layer screw-casing is provided with and institute
State the internal layer spiral feeding-passage of internal layer discharge port connection；
The die sleeve is provided with the outer layer feed inlet being connected with the outer layer spiral feeding-passage, feeds with the internal layer spiral
The internal layer feed inlet that channel is connected.
2. small-bore double-wall corrugated pipe as described in claim 1 squeezes out head, which is characterized in that the head is provided with internal layer
Inclined wall regulating device, the inclined wall regulating device of internal layer include: the first adjusting bolt, interior adjusting sleeve and tight sleeve, described to hold out against
Set is connect with the threaded one end of the interior adjusting sleeve, and multiple first adjusting bolts along the compression end cap circumferential array and prolong
Extend to the tight sleeve outer peripheral surface, the internal layer screw-casing is internally provided with the interior adjusting sleeve, and be provided with prevent it is described in
The anti-rotation device of adjusting sleeve rotation, the both ends of the internal layer screw-casing are respectively equipped with concentric the first spherical surface and the second spherical surface, institute
The rear end for stating internal layer core model installation set is fixedly connected with the front end of the interior adjusting sleeve, and after the internal layer core model installation set
End is provided with third spherical surface compatible with first spherical surface, and the front end of the tight sleeve is provided with and the second spherical surface phase
4th spherical surface of adaptation, described first, which adjusts bolt, adjusts the interior adjusting sleeve and the internal layer core model installation set around described first
The centre of sphere of spherical surface and the second spherical surface is swung.
3. small-bore double-wall corrugated pipe as claimed in claim 2 squeezes out head, which is characterized in that the anti-rotation device includes setting
The keyway being placed in inside the interior adjusting sleeve and the internal layer screw-casing and the key to match with the keyway.
4. small-bore double-wall corrugated pipe as described in claim 1 squeezes out head, which is characterized in that the rear end of the housing is arranged
There is housing flange, be provided with die sleeve pressure ring before the housing flange, the housing is by wearing the spiral shell of the die sleeve pressure ring
Line fastener is fixed with the die sleeve.
5. small-bore double-wall corrugated pipe as claimed in claim 4 squeezes out head, which is characterized in that the head is provided with outer layer
Inclined wall regulating device, the inclined wall regulating device of outer layer include adjusting bolt, institute along multiple the second of the die sleeve circumferential array
The second adjusting bolt is stated across the die sleeve and against the circumferential surface of the housing flange.
6. small-bore double-wall corrugated pipe as described in claim 1 squeezes out head, which is characterized in that the outer layer feed inlet and institute
It states internal layer feed inlet and is located at the die sleeve two sides, and be oppositely arranged.
7. small-bore double-wall corrugated pipe as described in claim 1 squeezes out head, which is characterized in that the outer layer core model installation set
Form air passage between the middle set, the gas outlet of the air passage correspond to the internal layer mouth mold and the outer layer core model it
Between the axial spacing.
8. small-bore double-wall corrugated pipe as described in claim 1 squeezes out head, which is characterized in that the internal layer core model installation set
Be internally provided with electric heater unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822269884.7U CN209350847U (en) | 2018-12-29 | 2018-12-29 | Small-bore double-wall corrugated pipe squeezes out head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822269884.7U CN209350847U (en) | 2018-12-29 | 2018-12-29 | Small-bore double-wall corrugated pipe squeezes out head |
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| Publication Number | Publication Date |
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| CN209350847U true CN209350847U (en) | 2019-09-06 |
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ID=67802152
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822269884.7U Active CN209350847U (en) | 2018-12-29 | 2018-12-29 | Small-bore double-wall corrugated pipe squeezes out head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022016640A1 (en) * | 2020-07-21 | 2022-01-27 | 临海伟星新型建材有限公司 | Double-layer hollow pipe mold |
-
2018
- 2018-12-29 CN CN201822269884.7U patent/CN209350847U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022016640A1 (en) * | 2020-07-21 | 2022-01-27 | 临海伟星新型建材有限公司 | Double-layer hollow pipe mold |
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