CN106003656B - Double-wall corrugated pipe extrusion die - Google Patents
Double-wall corrugated pipe extrusion die Download PDFInfo
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- CN106003656B CN106003656B CN201610634321.6A CN201610634321A CN106003656B CN 106003656 B CN106003656 B CN 106003656B CN 201610634321 A CN201610634321 A CN 201610634321A CN 106003656 B CN106003656 B CN 106003656B
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- wall material
- die sleeve
- runner
- air flue
- wall
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/18—Pleated or corrugated hoses
Abstract
The invention discloses double-wall corrugated pipe extrusion die,Including the interior die sleeve being arranged successively from the inside to the outside,Middle die sleeve and outer die casing,Interior die sleeve forms the first inner wall material runner with middle die sleeve,Middle die sleeve forms the first external wall material runner with outer die casing,Interior die sleeve side is connected with internal spiral,It is cased with being connected in the external spiral body of middle die sleeve side outside internal spiral,External spiral body forms the second inner wall material runner with internal spiral,The conveyor screw overcoat being connected on outer die casing is provided with the outer cover of outer conveyor screw,Conveyor screw overcoat forms the second external wall material runner with external spiral body,Middle die sleeve opposite side is connected with air flue seal,Separated air flue is set in middle die sleeve,External spiral body sets air admission hole,Air flue seal sets out stomata,The first inner wall material charging hole is arranged outside conveyor screw,External spiral body sets the second inner wall material charging hole,Inwall runner sealing shroud is set in first inner wall material charging hole,Inwall runner sealing shroud is pressed on external spiral body by inner wall material charging flange.The present invention has the advantages of good airproof performance.
Description
Technical field
The present invention relates to a kind of double-wall corrugated pipe extrusion die.
Background technology
The structure of double-wall corrugated pipe extrusion die is used at present：Including for forming double-wall corrugated pipe inner layer wall
Interior die body and to form the outer die body of double-wall corrugated pipe outer wall, the interior die body includes middle internal layer core, Yi Jitong
Axle is arranged at the internal layer die sleeve outside internal layer core, is formed and is supplied in the first of inner wall material flowing between internal layer die sleeve and internal layer core
Wall stream road, described outer die body include being coaxially disposed the outer layer core outside internal layer die sleeve and being coaxially disposed in outer layer
Outer layer die sleeve outside core, the first external wall material runner for external wall material flowing, institute are formed between outer layer die sleeve and internal layer die sleeve
Air flue among being formed between the internal layer die sleeve and outer layer core stated, the side shaft end threaded connection inside spin of the internal layer core
Body, external spiral body is provided with the outer cover of internal spiral, is formed and the first inner wall material runner between external spiral body and internal spiral
The the second inner wall material runner communicated, the first inner wall material runner and the second inner wall material runner are collectively forming inner wall material runner, in outer spiral shell
The outer cover of rotation body is provided with the conveyor screw overcoat being connected to a fixed with outer layer die sleeve, and conveyor screw overcoat is collectively forming with external spiral body
The the second external wall material runner communicated with the first external wall material runner, the first external wall material runner and the second external wall material runner are collectively forming outer
Wall stream road, if the external spiral body is connected to a fixed by the side shaft end of bolt stem and internal layer die sleeve, internal layer die sleeve it is another
Side shaft end screw thread has screwed outer wall expansion and has put cone, and outer wall, which expands to put to bore, axially holds out against outer layer core on outer conveyor screw, and works as
Outer layer core is expanded by outer wall puts the axis of cone to holding out against when on outer conveyor screw, and outer layer core, internal layer die sleeve and external spiral body three are total to
With the first annular inlet plenum being connected with middle air flue is surrounded, outer wall, which expands, puts the upper axle mutually axially pushed against with outer layer core of cone
End, outer layer core and internal layer die sleeve three surround the second annular inlet chamber room being connected with middle air flue jointly, and outer wall, which expands, to be put
Annular outlet passageway is formed between the opposite side shaft end not pushed against axially mutually with outer layer core on cone and internal layer core, is expanded in outer wall
Put and the second annular inlet chamber room of some connections and the venthole of annular outlet passageway are circumferentially evenly arranged with cone, and outside
It is provided with conveyor screw axially through external spiral body and the air admission hole that is connected with first annular inlet plenum；The air admission hole,
First annular inlet plenum, middle air flue, the second annular inlet chamber room, venthole and annular outlet passageway are collectively forming supplied gas
The air flue passed through；The the first inner wall material charging hole for radially penetrating conveyor screw overcoat is additionally provided with conveyor screw overcoat, in outer spiral shell
The second inner wall material charging hole of the first inner wall material charging hole of connection and the second inner wall material runner, the first inner wall material are provided with rotation body
Charging hole and the second inner wall material charging hole are collectively forming inner wall material feeding-passage.Lacked existing for above-mentioned double-wall corrugated pipe extrusion die
Putting is：（1）Internal layer die sleeve easily shakes because of bolt looseness in use, and outer wall expansion is put cone can not be by outer layer core
Mold shaft causes between external spiral body and outer layer core and outer layer core expands with outer wall and put to holding out against on outer conveyor screw
Gap can be produced between cone so that between flowing through the external wall material in external wall material runner easily between external spiral body and outer layer core
Gap enters air flue and blocks middle air flue between cone is put in gap and the expansion of outer layer core and outer wall, so as to cause tubulation to fail, no
Operating efficiency is only had a strong impact on, and installation and maintenance are cumbersome；（2）Due to reasons such as assemblings, external spiral body and conveyor screw overcoat it
Between can leave the gap of connection inner wall material feeding-passage and external wall material runner unavoidably, cause inner wall material in fill process easily from
Gap is channeled in external wall material runner between external spiral body and conveyor screw overcoat, and then influences product quality.
The content of the invention
It is an object of the invention to provide a kind of double-wall corrugated pipe extrusion die of good airproof performance.
To achieve the above object, present invention employs following technical scheme：Described double-wall corrugated pipe extrusion die, including
It is spaced the interior die sleeve being arranged, middle die sleeve and outer die casing successively from the inside to the outside, is formed between interior die sleeve and middle die sleeve and supply inwall stream
The first dynamic inner wall material runner, the first external wall material runner for external wall material flowing is formed between middle die sleeve and outer die casing, it is described interior
The side shaft end seal of die sleeve is connected with internal spiral, the die sleeve one in the outer cover of internal spiral is connected to provided with screwing hermetic
External spiral body on side axle end, the second inner wall material communicated with the first inner wall material runner is formed between external spiral body and internal spiral
Runner, the first inner wall material runner and the second inner wall material runner are collectively forming inner wall material runner, are provided with the outer cover of outer conveyor screw
The conveyor screw overcoat being sealedly connected on outer die casing, formed and the first external wall material runner phase between conveyor screw overcoat and external spiral body
The second logical external wall material runner, the first external wall material runner and the second external wall material runner are collectively forming external wall material runner, the middle mould
Together with the opposite side shaft end of set and air flue seal body phase screwing hermetic and axially pushed against, be provided with middle die sleeve axially through
The separated air flue of middle die sleeve, it is provided with outer conveyor screw axially through external spiral body and connects the air admission hole of separated air flue,
It is provided with air flue seal axially through air flue seal and connects the venthole of separated air flue；Also set in conveyor screw overcoat
The the first inner wall material charging hole for radially penetrating conveyor screw overcoat is equipped with, aperture is provided with outer conveyor screw and is less than the first inner wall material
Charging hole and the second inner wall material charging hole of the first inner wall material charging hole of connection and the second inner wall material runner, the charging of the first inner wall material
Hole makes to form a circle on the outer wall of external spiral body to place the week of inwall runner sealing shroud jointly with the second inner wall material charging hole
To boss, inwall runner sealing shroud is provided with the first inner wall material charging hole, being provided with inner wall material on set outside conveyor screw enters
Expect flange, inner wall material feeds flange and the sealing of inwall runner sealing shroud is pressed on circumferential boss, makes inner wall material charging flange
Flange hole, the first inner wall material charging hole and the second inner wall material charging hole are collectively forming inner wall material feeding-passage.
Further, foregoing double-wall corrugated pipe extrusion die, wherein：Middle die sleeve is formed with external spiral body phase junction
Circumferential weld passes through welded seal.
Further, foregoing double-wall corrugated pipe extrusion die, wherein：Middle die sleeve is formed with air flue seal connection
Circumferential weld pass through welded seal.
Further, foregoing double-wall corrugated pipe extrusion die, wherein：Central die sleeve and external spiral body phase screwing hermetic and
When axially pushing against together, just formed closed between middle die sleeve and external spiral body and connect air admission hole and separated air flue simultaneously
First annular inlet plenum.
Further, foregoing double-wall corrugated pipe extrusion die, wherein：Central die sleeve and air flue sealing body phase screwing hermetic
And axially push against together, just formed between the shaft end mutually axially pushed against with middle die sleeve on air flue seal and middle die sleeve closed
And the second annular inlet chamber room of separated air flue and venthole is connected simultaneously, do not pushed against axially mutually with middle die sleeve on air flue seal
Opposite side shaft end and middle die sleeve between form the annular outlet passageway that is connected with venthole.
Further, foregoing double-wall corrugated pipe extrusion die, wherein：Sealed in inner wall material charging flange with inwall runner
Cover the notch being provided with the end face to offset for the insertion of inwall runner sealing shroud.
Further, foregoing double-wall corrugated pipe extrusion die, wherein：Being coated with the outer wall of conveyor screw overcoat can be right
The heater that conveyor screw overcoat is heated, the heater by two panels semicircle monoblock type ceramic heater pairing connect and
Into.
Further, foregoing double-wall corrugated pipe extrusion die, wherein：The company of two panels semicircle monoblock type ceramic heater
The mode of connecing is：A bearing pin is separately installed with the outer wall of the both sides pairing end of every semicircle monoblock type ceramic heater,
Bearing pin on every semicircle monoblock type ceramic heater and corresponding end on another semicircle monoblock type ceramic heater
Pass through clamping screw screw-threaded coupling between bearing pin.
Further, foregoing double-wall corrugated pipe extrusion die, wherein：Bullet is arranged with respectively on every clamping screw
Spring, the both ends of spring are withstood on the head and corresponding bearing pin of clamping screw respectively.
The implementation of Pass through above-mentioned technical proposal, the beneficial effects of the invention are as follows：（1）Air flue good airproof performance, effective anti-fluid stopping
The occurrence of entering air flue through the external wall material in external wall material runner and blocking air flue, structure is simpler, and dismounting maintenance is more convenient,
Effectively increase operating efficiency；（2）Feeding-passage good airproof performance, it can effectively prevent inner wall material in fill process from external spiral body
Gap is channeled in external wall material runner between conveyor screw overcoat, the occurrence of avoiding batch mixing, ensure that product quality；（3）
Heater structure is simple and convenient to install and maintain.
Brief description of the drawings
Fig. 1 is the structural representation of double-wall corrugated pipe extrusion die of the present invention.
Fig. 2 is the enlarged diagram of the H parts shown in Fig. 1.
Fig. 3 is the enlarged diagram of the F parts shown in Fig. 1.
Fig. 4 is the enlarged diagram of the I parts shown in Fig. 1.
Fig. 5 is the structural representation of heater in double-wall corrugated pipe extrusion die of the present invention.
Fig. 6 is the enlarged diagram of the L portion shown in Fig. 5.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, described double-wall corrugated pipe extrusion die, including from the inside to the outside according to
Interior die sleeve 1 that minor tick is arranged, middle die sleeve 2 and outer die casing 3, for inner wall material flowing is formed between interior die sleeve 1 and middle die sleeve 2
One inner wall material runner 4, the first external wall material runner 5 for external wall material flowing, the internal model are formed between middle die sleeve 2 and outer die casing 3
The side shaft end seal of set 1 is connected with internal spiral 6, the die sleeve 2 in the outer cover of internal spiral 6 is connected to provided with screwing hermetic
External spiral body 7 on the shaft end of side, second communicated with the first inner wall material runner 4 is formed between external spiral body 7 and internal spiral 6
Inner wall material runner 8, the first inner wall material runner 4 and the second inner wall material runner 8 are collectively forming inner wall material runner, in outer conveyor screw 7
Outer cover, which is provided with, is sealedly connected on conveyor screw overcoat 9 on outer die casing 3, is formed between conveyor screw overcoat 9 and external spiral body 7 and the
The second external wall material runner 10 that one external wall material runner 5 communicates, the first external wall material runner 5 are collectively forming with the second external wall material runner 10
External wall material runner, the opposite side shaft end of the middle die sleeve 2 with the phase screwing hermetic of air flue seal 11 and together with axially pushing against,
The separated air flue 12 axially through middle die sleeve 2 is provided with middle die sleeve 2, is provided with outer conveyor screw 7 axially through external spiral
Body 7 and the air admission hole 13 for connecting separated air flue 12, it is provided with axially through air flue seal 11 and connects in air flue seal 11
The venthole 14 of logical separated air flue 12；The first inner wall material of radially insertion conveyor screw overcoat 9 is additionally provided with conveyor screw overcoat 9
Charging hole 15, aperture is provided with outer conveyor screw 7 less than the first inner wall material charging hole 15 and the first inner wall material charging hole of connection
15 and second inner wall material runner 8 the second inner wall material charging hole 16, the first inner wall material charging hole 15 and the second inner wall material charging hole
16 make to be formed a circle on the outer wall of external spiral body 7 to place the circumferential boss of inwall runner sealing shroud 17 jointly, in first
Inwall runner sealing shroud 17 is provided with wall material charging hole 15, inner wall material charging flange 18 is provided with conveyor screw overcoat 9, it is interior
Wall material feeds flange 18 and the sealing of inwall runner sealing shroud 17 is pressed on circumferential boss, makes the flange of inner wall material charging flange 18
Hole 26, the first inner wall material charging hole 15 and the second inner wall material charging hole 16 are collectively forming inner wall material feeding-passage；In the present embodiment
In, the circumferential weld that middle die sleeve 2 is formed with the connection of external spiral body 7 so can further improve independent gas by welded seal
The sealing in road 12, effectively prevent from flowing through the external wall material of external wall material runner therefrom the junction of die sleeve 2 and external spiral body 7 penetrate into it is only
Found air flue 12 and block the generation of air flue phenomenon；In the present embodiment, middle die sleeve 2 is formed with the connection of air flue seal 11
Circumferential weld so can further improve the sealing of separated air flue 12, further effectively prevent from flowing through outer wall by welded seal
The external wall material in stream road therefrom penetrate into separated air flue 12 and block air flue phenomenon by the junction of die sleeve 2 and air flue seal 11
Occur；In the present embodiment, central die sleeve 2 and the phase screwing hermetic of external spiral body 7 and when together with axially pushing against, middle die sleeve 2 with
First annular inlet plenum 19 that is closed and connecting air admission hole 13 and separated air flue 12 simultaneously is just formed between external spiral body 7,
The installation accuracy between middle die sleeve 2 and external spiral body 7 is so greatly reduced, improves efficiency of assembling；In the present embodiment, when
Middle die sleeve 2 is axial with the middle phase of die sleeve 2 on air flue seal 11 together with the phase screwing hermetic of air flue seal 11 and axial direction abutting
The second annular that is closed and connecting separated air flue 12 and venthole 14 simultaneously is just formed between the shaft end of abutting and middle die sleeve 2 to enter
Gas chamber 20, formed and gone out between the opposite side shaft end not pushed against axially with the middle phase of die sleeve 2 on air flue seal 11 and middle die sleeve 2
The annular outlet passageway 21 that stomata 14 is connected, so not only greatly reduce the peace between middle die sleeve 2 and air flue seal 11
Precision is filled, improves efficiency of assembling, and ensure that uniform outlet；In the present embodiment, inner wall material feed flange 18 with it is interior
The notch inserted for inwall runner sealing shroud 17 is provided with the end face that wall runner sealing shroud 17 offsets, is so installed more square
Just；In the present embodiment, the heater that can be heated to conveyor screw overcoat 9, institute are coated with the outer wall of conveyor screw overcoat 9
State heater to be formed by connecting by the pairing of two panels semicircle monoblock type ceramic heater 22, above-mentioned heater structure is simple, uses the longevity
Life length, operating efficiency are high and convenient to install and maintain；In the present embodiment, the connection of two panels semicircle monoblock type ceramic heater 22
Mode is：A bearing pin is separately installed with the outer wall of the both sides pairing end of every semicircle monoblock type ceramic heater 22
23, bearing pin 23 on every semicircle monoblock type ceramic heater 22 with it is right on another semicircle monoblock type ceramic heater 22
Answer between the bearing pin 23 of end by the screw-threaded coupling of clamping screw 24, above-mentioned connected mode is simple in construction, and dismounting is easy to maintenance；
In the present embodiment, it is arranged with spring 25 respectively on every clamping screw 24, the both ends of spring 25 withstand on clamping screw respectively
On 24 head and corresponding bearing pin 23, so preferably two panels semicircle monoblock type ceramic heater 22 can be locked
Tightly；
In use, first the pairing of two panels semicircle monoblock type ceramic heater 22 is coated on the outer wall of threaded body overcoat 9,
Then all clamping screws 24 are screwed, that is, complete the heating for carrying out heating plasticizing to the external wall material in outer wall stream road
The installation of device, installation are extremely convenient；Inner wall material is then fed to flange hole 26, the first inner wall material of flange 18 through inner wall material successively
The inner wall material charging hole 16 of charging hole 15 and second enters in inner wall material runner, due to the inwall stream in the first inner wall material charging hole 15
Road sealing shroud 17 seals be pressed on the outer wall of external spiral body 7 all the time, the gap between external conveyor screw 7 and conveyor screw overcoat 9
Sealed so that inner wall material feeding-passage no longer connects with external wall material runner, and then effectively prevents inner wall material from feeding
Gap in journey between external spiral body 7 and conveyor screw overcoat 9 is channeled in external wall material runner, the occurrence of avoiding batch mixing,
Product quality has been effectively ensured；Meanwhile for can be successively through air admission hole 13, the first ring by the compressed gas of external wall material blow molding
Exported after shape inlet plenum 19, separated air flue 12, the second annular inlet chamber room 20, venthole 14 and annular outlet passageway 21；One
Aspect, by the way that the both sides shaft end of external spiral body 7 is screwed with middle die sleeve 2 and the phase thread seal of air flue seal 11 respectively, then will
The circumferential weld and middle die sleeve 2 that middle die sleeve 2 is formed with the junction of external spiral body 7 are connected with the corresponding shaft end of air flue seal 11
The circumferential weld that place is formed carries out the mode that is connected of welded seal, not only substantially increases the sealing of air flue, effective anti-fluid stopping
The occurrence of entering air flue through the external wall material in external wall material runner and blocking air flue, and it also avoid middle die sleeve and using
Shaken in journey, substantially increase the operation stability of equipment；On the other hand, separated air flue 12 is opened in middle die sleeve,
Structure is enormously simplify, installation and maintenance are more convenient.It is an advantage of the invention that：（1）Air flue good airproof performance, effectively prevent from flowing through outer wall
The occurrence of external wall material in stream road enters air flue and blocks air flue, structure is simpler, and dismounting maintenance is more convenient, effectively carries
High operating efficiency；（2）Feeding-passage good airproof performance, it can effectively prevent inner wall material in fill process from external spiral body and spiral
Gap is channeled in external wall material runner between external set, the occurrence of avoiding batch mixing, ensure that product quality；（3）Heater
Service life is long, operating efficiency is high, simple in construction and convenient to install and maintain.
Claims (9)
1. double-wall corrugated pipe extrusion die, it is characterised in that：Including be spaced successively from the inside to the outside the interior die sleeve being arranged, middle die sleeve with
Outer die casing, the first inner wall material runner for inner wall material flowing is formed between interior die sleeve and middle die sleeve, between middle die sleeve and outer die casing
The first external wall material runner for external wall material flowing is formed, the side shaft end seal of the interior die sleeve is connected with internal spiral, inside
The outer cover of conveyor screw is provided with the external spiral body that screwing hermetic is connected on the shaft end of middle die sleeve side, external spiral body and internal spiral
Between form the second inner wall material runner for being communicated with the first inner wall material runner, the first inner wall material runner is total to the second inner wall material runner
With inner wall material runner is formed, the conveyor screw overcoat being sealedly connected on outer die casing, conveyor screw are provided with the outer cover of outer conveyor screw
Form the second external wall material runner for being communicated with the first external wall material runner between overcoat and external spiral body, the first external wall material runner and the
Two external wall material runners are collectively forming external wall material runner, the opposite side shaft end of the middle die sleeve and air flue sealing body phase screwing hermetic and
Axially push against together, the separated air flue axially through middle die sleeve is provided with middle die sleeve, axle is provided with outer conveyor screw
To insertion external spiral body and connect the air admission hole of separated air flue, be provided with air flue seal axially through air flue seal and
Connect the venthole of separated air flue；The first inner wall material charging of radially insertion conveyor screw overcoat is additionally provided with conveyor screw overcoat
Hole, aperture is provided with outer conveyor screw less than the first inner wall material charging hole and the first inner wall material charging hole of connection and the second inwall
The second inner wall material charging hole in stream road, the first inner wall material charging hole and the second inner wall material charging hole make the outer of external spiral body jointly
A circle is formed on wall to place the circumferential boss of inwall runner sealing shroud, inwall stream is provided with the first inner wall material charging hole
Road sealing shroud, is provided with inner wall material charging flange outside conveyor screw on set, inner wall material charging flange is close by inwall runner sealing shroud
Envelope is pressed on circumferential boss, feeds flange hole, the first inner wall material charging hole and the second inner wall material of inner wall material charging flange
Hole is collectively forming inner wall material feeding-passage.
2. double-wall corrugated pipe extrusion die according to claim 1, it is characterised in that：Middle die sleeve is connected with external spiral body phase
The circumferential weld that place is formed passes through welded seal.
3. double-wall corrugated pipe extrusion die according to claim 1, it is characterised in that：Middle die sleeve is connected with air flue seal
The circumferential weld that the place of connecing is formed passes through welded seal.
4. double-wall corrugated pipe extrusion die according to claim 1, it is characterised in that：Central die sleeve revolves with external spiral body phase
Tightening seal and axially push against together when, just formed between middle die sleeve and external spiral body it is closed and connect simultaneously air admission hole with solely
The first annular inlet plenum of vertical air flue.
5. double-wall corrugated pipe extrusion die according to claim 1, it is characterised in that：Central die sleeve and air flue sealing body phase
Screwing hermetic and axial direction push against together, between the shaft end mutually axially pushed against with middle die sleeve on air flue seal and middle die sleeve just
Form the second annular inlet chamber room that is closed and connecting separated air flue and venthole simultaneously, on air flue seal not with middle die sleeve phase
The annular outlet passageway being connected with venthole is formed between the opposite side shaft end axially pushed against and middle die sleeve.
6. double-wall corrugated pipe extrusion die according to claim 1, it is characterised in that：Flange and inwall are fed in inner wall material
The notch for the insertion of inwall runner sealing shroud is provided with the end face that runner sealing shroud offsets.
7. double-wall corrugated pipe extrusion die according to claim 1, it is characterised in that：Wrapped on the outer wall of conveyor screw overcoat
The heater that can be heated to conveyor screw overcoat is covered with, the heater is by two panels semicircle monoblock type ceramic heater pairing
It is formed by connecting.
8. double-wall corrugated pipe extrusion die according to claim 7, it is characterised in that：Two panels semicircle monoblock type ceramics add
The connected mode of hot device is：One is separately installed with the outer wall of the both sides pairing end of every semicircle monoblock type ceramic heater
Root bearing pin, the bearing pin on every semicircle monoblock type ceramic heater are corresponding with another semicircle monoblock type ceramic heater
Pass through clamping screw screw-threaded coupling between the bearing pin of end.
9. double-wall corrugated pipe extrusion die conveyor screw overcoat heating arrangement according to claim 8, it is characterised in that：Every
Spring is arranged with root clamping screw respectively, the both ends of spring are withstood on the head and corresponding bearing pin of clamping screw respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610634321.6A CN106003656B (en) | 2016-08-05 | 2016-08-05 | Double-wall corrugated pipe extrusion die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610634321.6A CN106003656B (en) | 2016-08-05 | 2016-08-05 | Double-wall corrugated pipe extrusion die |
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| Publication Number | Publication Date |
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| CN106003656A CN106003656A (en) | 2016-10-12 |
| CN106003656B true CN106003656B (en) | 2018-03-06 |
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| CN201610634321.6A Active CN106003656B (en) | 2016-08-05 | 2016-08-05 | Double-wall corrugated pipe extrusion die |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112078172A (en) * | 2019-06-14 | 2020-12-15 | 中国石油化工股份有限公司 | Orifice plate subassembly reaches bar extruder including it |
| CN110370597A (en) * | 2019-08-02 | 2019-10-25 | 贵州兴四通塑胶有限公司 | Hollow wall winding enhancing compound bellows shaper |
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| CN202805602U (en) * | 2012-06-21 | 2013-03-20 | 上海金纬管道设备制造有限公司 | Handpiece for manufacturing double-wall corrugated pipe |
| CN203046206U (en) * | 2012-12-31 | 2013-07-10 | 苏州金纬机械制造有限公司 | Double-wall corrugated pipe forming machine |
| CN203567159U (en) * | 2013-11-07 | 2014-04-30 | 青州市塑霸机械有限公司 | Double-wall corrugated pipe extruding machine head |
| CN203739193U (en) * | 2014-03-10 | 2014-07-30 | 苏州杰威尔精密机械有限公司 | Double-walled corrugated pipe mold |
| CN205969880U (en) * | 2016-08-05 | 2017-02-22 | 张家港市金达利模塑有限公司 | Double -walled bellows extrusion tooling |
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| CN106003656A (en) | 2016-10-12 |
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