CN110171119A - A kind of helical bellows continuous forming process - Google Patents
A kind of helical bellows continuous forming process Download PDFInfo
- Publication number
- CN110171119A CN110171119A CN201910461224.5A CN201910461224A CN110171119A CN 110171119 A CN110171119 A CN 110171119A CN 201910461224 A CN201910461224 A CN 201910461224A CN 110171119 A CN110171119 A CN 110171119A
- Authority
- CN
- China
- Prior art keywords
- tail portion
- inner core
- forming process
- rotating mould
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
-
- 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
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/151—Coating hollow articles
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of helical bellows continuous forming process, the present invention is sent the raw material of melting to rotating mould by the first extruder, rotating mould is equipped with the charging notch being distributed along 360 ° of even circumferentials, raw material enters from charging notch, it is quickly and evenly distributed in the runner of rotating mould, before the steering of runner inward turning, integrally formed seamless inner tube is squeezed out out of rotating mould, the doubling of reinforcing rib pipe is squeezed out by the second extruder to be wound on the outer diameter of seamless inner tube, obtains helical bellows finished product through supercooling and cutting.The present invention is integrally formed with inner tube, the smooth no Da seam of high production efficiency, interior pipe surface, not the advantages of cracky.
Description
Technical field
The present invention relates to tube forming technical field, especially a kind of helical bellows continuous forming process.
Background technique
Currently, the production of helical bellows considers can be divided into from general orientation two big steps, one, the molding of inner tube；Two, add
The winding of strengthening tendons pipe；The circle of heating is specifically uniformly wound in by predetermined position by First extruder polyethylene extrusion band
Round tube body namely inner tube are formed on shape drum die, while opening second extruder, and hot melt muscle pipe is made in the material of extrusion
And will be embedded into muscle pipe mold by the prefabricated skeleton bellows of skeleton bellows process units simultaneously, form final reinforcement
Muscle pipe is simultaneously wound in inner tube outside diameter.
103317730 B of patent announcement CN discloses a kind of helical bellows and is flared continuous winding thermoforming dress online
It sets, to be by two extruders polyethylene extrusion plastics first and by die forming be helical bellows moulding process under this device
Double-colored belt-shaped form wound band, combination roller tire rotates and make that winding band along its outer diameter is continuously wound into internal layer yellow, outer layer is black
Solid wall pipe, at this point, third platform extruder is by muscle pipe mold polyethylene extrusion muscle pipe, and the skeleton ripple that will be prepared simultaneously
Pipe penetrates muscle pipe mold and further constitutes combination muscle pipe, and combination muscle pipe is wrapped in outside solid wall pipe and spiral winding structure spiral is made
Bellows.It can be seen that the inner tube of corrugated conduit is generally made using the form with winding on the market at present, actually manufacturing
Cheng Zhong, it is this lower by the production method efficiency with winding, and also inner tube outer surface obtained has Da seam, causes interior pipe ring rigid
Spend lower, the inner tube that be unable to satisfy in some engineerings has Da to stitch to the higher requirement of blow-off line ring stiffness is even more using several
It is easy layering and damaged cracking after year, causes unnecessary loss.Therefore, there are inner tubes for existing helical bellows moulding process
With the form molding with winding, it is easy to produce Da seam, causes the problem of low, the easy breakage of helical bellows ring stiffness.
Summary of the invention
The object of the present invention is to provide a kind of helical bellows continuous forming process.It is integrally formed with inner tube, raw
The smooth no Da seam of high-efficient, interior pipe surface is produced, not the advantages of cracky.
Technical solution of the present invention: a kind of helical bellows continuous forming process, by the first extruder by the original of melting
Material is sent to rotating mould, and rotating mould is equipped with the charging notch that be distributed along 360 ° of even circumferentials, raw material from feed notch into
Enter, be quickly and evenly distributed in the runner of rotating mould, before the steering of runner inward turning, squeezes out and be integrally formed out of rotating mould
Seamless inner tube, by the second extruder squeeze out the doubling of reinforcing rib pipe be wound on the outer diameter of seamless inner tube, through supercooling and cut
It cuts to obtain helical bellows finished product.
In a kind of helical bellows continuous forming process above-mentioned, the diameter of the seamless inner tube is 200mm-2000mm.
In a kind of helical bellows continuous forming process above-mentioned, the rotating mould includes the mould head of detachable connection
Portion and mold tail portion.
In a kind of helical bellows continuous forming process above-mentioned, the die head is by head inner core and head shell structure
At, molding runners are formed between head inner core and head shell, be set between head inner core and head shell molding flow
Connecting column in road is connected, and mold tail portion is made of tail portion inner core and tail portion shell, shape between tail portion inner core and tail portion shell
At there is charging runner, it is set the connecting plate in the two end side between tail portion inner core and tail portion shell and is connected；Connecting plate
Center be equipped with through-hole.
In a kind of helical bellows continuous forming process above-mentioned, screw thread connects between the head inner core and tail portion inner core
It connects, is locked between head shell and tail portion shell through clamping screw.
In a kind of helical bellows continuous forming process above-mentioned, the both ends of the surface of the head inner core are higher by head shell
Both ends of the surface.
In a kind of helical bellows continuous forming process above-mentioned, one is equipped with close to charging runner end in the molding runners
Section material changeover portion, the cross-sectional area of changeover portion are gradually reduced along flow direction of material, and connecting column is arranged in changeover portion.
In a kind of helical bellows continuous forming process above-mentioned, the head inner core and tail portion inner core are hollow knot
Structure.
A kind of realization device of helical bellows continuous forming process above-mentioned, including the first extruder, the first extruder
It is connected with rotating mould, is equipped with mould rotary device below rotating mould, the discharge port of rotating mould is connected with sizing jacket group
Part, the side of rotating mould are equipped with the second extruder and skeleton bellows process units, and the discharge port of the second extruder is equipped with muscle
Pipe mold, the side of sizing jacket component are equipped with cooled water knockout drum, the end of sizing jacket component along pipeline direction successively
Equipped with cooler bin and rotary tractor.
In a kind of realization device of helical bellows continuous forming process above-mentioned, the discharge port of first extruder is set
There is the charging ring with rotating mould cooperation.
Compared with prior art, the present invention is when processing helical bellows, by the first extruder by the raw material of melting send to
It in rotating mould, and directly extrudes to obtain integrally formed seamless inner tube out of rotating mould, is suitable for manufacture diameter dimension and exists
200mm-2000mm medium-sized seamless inner tube, compared to the processing method that existing inner tube uses band to wind, the present invention, which processes, to be formed
The smooth no Da seam of inner tube outer surface, so that the helical bellows ring stiffness finally obtained after winding reinforcing rib pipe is high, not cracky.
Specifically, the first extruder of the invention is connected by a charging ring with rotating mould, since mold rotates,
Charging ring is static, enters the runner that the material in rotating mould can rapidly and uniformly be full of rotating mould from charging notch, and
Material temperature in entire runner is consistent, and raw material is before the steering of runner inward turning, by the changeover portion in runner, finally from mould
Tool outlet, which squeezes out, obtains integrally formed inner tube, and rotating mould is die head and the mold tail portion of detachable connection, wherein logical
It crosses and replaces various sizes of die head and can produce various sizes of inner tube, no replacement is required entire mold saves mold system
Totle drilling cost is made, and die head replacement operation is simple and easy, can be changed quickly.
In addition, the head inner core both ends of the surface of mold are higher by the both ends of the surface of head shell, setter is to installation during installation
Position can have preferably installation sight；Head shell and tail portion shell can be connected closely by the locking of clamping screw.
To sum up, the present invention is integrally formed with inner tube, the smooth no Da seam of high production efficiency, interior pipe surface, not cracky
Advantage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of realization device of the present invention；
Fig. 2 is the structural schematic diagram of rotating mould of the present invention；
Fig. 3 is the structural schematic diagram of die head；
Fig. 4 is the structural schematic diagram of mold tail portion.
The label in accompanying drawing is: the first extruder of 1-, 2- rotating mould, 3- mould rotary device, 4- sizing jacket component,
The second extruder of 5-, 6- skeleton bellows process units, 7- muscle pipe mold, 8- cooled water knockout drum, 9- cooler bin, 10- rotation are led
Leading-in device, 11- feed ring, and 21- die head, 22- mold tail portion, 23- clamping screw, 25- feeds notch, in the head 211-
Core, 212- head shell, 213- molding runners, 214- connecting column, the tail portion 221- inner core, the tail portion 222- shell, 223- feeding flow
Road, 224- connecting plate, 225- through-hole, 2131- changeover portion.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
Embodiment: a kind of helical bellows continuous forming process, this technique are sent the raw material of melting by the first extruder 1
To rotating mould 2, rotating mould 2 is equipped with the charging notch 25 that be distributed along 360 ° of even circumferentials, and raw material is from feeding notch 25
Into, it is quickly and evenly distributed in the runner of rotating mould 2, before the steering of runner inward turning, the extrusion one out of rotating mould 2
Molding seamless inner tube squeezes out the doubling of reinforcing rib pipe by the second extruder 5 and is wound on the outer diameter of seamless inner tube, through supercooling
Helical bellows finished product is obtained with cutting.
The diameter of the seamless inner tube is 200mm-2000mm.
The rotating mould 2 includes die head 21 and the mold tail portion 22 of detachable connection.
The die head 21 is made of head inner core 211 and head shell 212, head inner core 211 and head shell 212
Between be formed with molding runners 213, the connection being set in molding runners 213 between head inner core 211 and head shell 212
Column 214 is connected, and mold tail portion 22 is made of tail portion inner core 221 and tail portion shell 222, tail portion inner core 221 and tail portion shell 222
Between be formed with charging runner 223, the connection in the two end side is set between tail portion inner core 221 and tail portion shell 222
Plate 224 is connected；The center of connecting plate 224 is equipped with through-hole 225, and 225 diameter of through-hole is less than the internal diameter of tail portion inner core 221, through-hole
225 setting is not influence the normal stream of raw material in runner in order to which the water inlet pipe of water jacket and the cable of vacuum pump extend there through
It is dynamic.
It is threadedly coupled between the head inner core 211 and tail portion inner core 221, between head shell 212 and tail portion shell 222
It is locked through clamping screw 23, high-temperature resistant seal ring is equipped at the joint gap of head shell 212 and tail portion shell 222.
The both ends of the surface of the head inner core 211 are higher by the both ends of the surface of head shell 212.
It is equipped with one section of material changeover portion 2131 close to charging 223 end of runner in the molding runners 213, changeover portion 2131
Cross-sectional area is gradually reduced along flow direction of material, and connecting column 214 is arranged in changeover portion 2131, the molding of inner tube is not influenced, in mistake
Section 2131 is crossed, material flow is speeded.
The head inner core 211 and tail portion inner core 221 are hollow structure, and lighting is conducive to mold and rotates.
The realization device of the helical bellows continuous forming process, structure is as shown in Figures 1 to 4, including first squeezes out
Machine 1, the first extruder 1 are connected with rotating mould 2, are equipped with mould rotary device 3, the discharging of rotating mould 2 below rotating mould 2
Mouth is connected with sizing jacket component 4, and the side of rotating mould 2 is equipped with the second extruder 5 and skeleton bellows process units 6, the
The discharge port of two extruders 5 is equipped with muscle pipe mold 7, and the side of sizing jacket component 4 is equipped with cooled water knockout drum 8, sizing jacket group
The end of part 4 is successively arranged cooler bin 9 and rotary tractor 10 along pipeline direction.
The discharge port of first extruder 1 is equipped with the charging ring 11 that cooperate with rotating mould 2, in rotating mould 2 and into
Expect ring 11 connecting portion be equipped with several equally distributed charging notches 25, charging 25 preferred amount of notch be 3, every section into
The corresponding central angle of 25 place circular arc line of hopper mouth is 100 °.
The mould rotary device 3 includes rack, and rack is equipped with connector, cylindrical guide and driving motor.
The sizing jacket component 4 includes vacuum pump, water pump and the water jacket for tubing sizing.
The rotary tractor 10 includes the rotating circular disk being driven by motor, and is equipped with traction crawler belt on rotating circular disk.
The skeleton bellows that the skeleton bellows process units 6 is produced is round or rectangular muscle tube section bellows.
Process flow of the invention: the charging ring 11 that the polyethylene raw material of hot melt is exported from the first extruder 1 enters rotation
In mold 2, extrusion is exported from rotating mould 2 by feeding runner 223 and molding runners 213 in rotating mould 2, is integrally molded so as
The smooth seamless inner tube in surface, rotating mould 2 continue to keep rotation, are fed forward inner tube, and the work of the second extruder 5 squeezes out heat
Molten muscle pipe will be simultaneously embedded into muscle pipe mold 7 by the prefabricated skeleton bellows of skeleton bellows process units 6 simultaneously, be formed most
Whole reinforcing rib pipe doubling is wound in inner tube outside diameter, is drawn after the cooling sizing of sizing jacket component 4 by rotary tractor 10
It travels forward, finally carries out cutting and stacking obtains helical bellows finished product.
Claims (10)
1. a kind of helical bellows continuous forming process, it is characterised in that: sent the raw material of melting to rotation by the first extruder
In revolving die tool, rotating mould is equipped with the charging notch being distributed along 360 ° of even circumferentials, and raw material enters from charging notch, quickly
It is distributed in the runner of rotating mould, before the steering of runner inward turning, is squeezed out out of rotating mould integrally formed seamless interior evenly
Pipe squeezes out the doubling of reinforcing rib pipe by the second extruder and is wound on the outer diameter of seamless inner tube, obtains spiral shell through supercooling and cutting
Revolve bellows finished product.
2. a kind of helical bellows continuous forming process according to claim 1, it is characterised in that: the seamless inner tube
Diameter is 200mm-2000mm.
3. a kind of helical bellows continuous forming process according to claim 1, it is characterised in that: the rotating mould packet
Include die head and the mold tail portion of detachable connection.
4. a kind of helical bellows continuous forming process according to claim 3, it is characterised in that: the die head by
Head inner core (211) and head shell (212) are constituted, and molding stream is formed between head inner core (211) and head shell (212)
Road (213) is set the connecting column (214) in molding runners (213) between head inner core (211) and head shell (212)
It is connected, mold tail portion is made of tail portion inner core (221) and tail portion shell (222), tail portion inner core (221) and tail portion shell
(222) it is formed with charging runner (223) between, is set between tail portion inner core (221) and tail portion shell (222) in the two end
The connecting plate (224) of side is connected；The center of connecting plate (224) is equipped with through-hole (225).
5. a kind of helical bellows continuous forming process according to claim 4, it is characterised in that: the head inner core
(211) it is threadedly coupled between tail portion inner core (221), through clamping screw between head shell (212) and tail portion shell (222)
(23) it is locked.
6. a kind of helical bellows continuous forming process according to claim 4, it is characterised in that: the head inner core
(211) both ends of the surface are higher by the both ends of the surface of head shell (212).
7. a kind of helical bellows continuous forming process according to claim 4, it is characterised in that: the molding runners
(213) it is equipped with one section of material changeover portion (2131) close to charging runner (223) end in, the cross-sectional area of changeover portion (2131) is along object
To being gradually reduced, connecting column (214) is arranged in changeover portion stream.
8. a kind of helical bellows continuous forming process according to claim 4, it is characterised in that: the head inner core
(211) and tail portion inner core (221) is hollow structure.
9. a kind of realization device of helical bellows continuous forming process, feature described in claim 1-8 any one exist
In: including the first extruder (1), the first extruder (1) is connected with rotating mould (2), and mold is equipped with below rotating mould (2) and is revolved
Rotary device (3), the discharge port of rotating mould (2) are connected with sizing jacket component (4), and the side of rotating mould (2) is equipped with second
The discharge port of extruder (5) and skeleton bellows process units (6), the second extruder (5) is equipped with muscle pipe mold (7), sizing water
The side for covering component (4) is equipped with cooled water knockout drum (8), and the end of sizing jacket component (4) is successively arranged along pipeline direction
Cooler bin (9) and rotary tractor (10).
10. a kind of realization device of helical bellows continuous forming process according to claim 9, it is characterised in that: institute
The discharge port for stating the first extruder (1) is equipped with the charging ring (11) cooperated with rotating mould (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910461224.5A CN110171119A (en) | 2019-05-30 | 2019-05-30 | A kind of helical bellows continuous forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910461224.5A CN110171119A (en) | 2019-05-30 | 2019-05-30 | A kind of helical bellows continuous forming process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110171119A true CN110171119A (en) | 2019-08-27 |
Family
ID=67696563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910461224.5A Pending CN110171119A (en) | 2019-05-30 | 2019-05-30 | A kind of helical bellows continuous forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110171119A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115139543A (en) * | 2022-05-18 | 2022-10-04 | 宁波方力科技股份有限公司 | Production line and production method for winding rib pipes outside polyolefin thin-wall inner pipes |
| CN115139544A (en) * | 2022-05-30 | 2022-10-04 | 宁波方力科技股份有限公司 | Production line and production method for winding rib pipes outside polyolefin solid-wall inner pipes |
| CN115534263A (en) * | 2022-07-29 | 2022-12-30 | 宁波方力科技股份有限公司 | Plastic solid wall winding pipe production line based on rotary die and production process |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3611494A (en) * | 1968-03-18 | 1971-10-12 | Kautex Werke Gmbh | Extrusion head for extruding annular articles of thermoplastic material |
| US3985490A (en) * | 1974-06-04 | 1976-10-12 | Mauser Kommanditgesellschaft | Apparatus for extruding a homogeneous tubular length of soft thermoplastic material |
| US4783299A (en) * | 1985-12-18 | 1988-11-08 | Alphacan | Method and apparatus for extrusion of plastic pipes with composite walls |
| EP0486735A1 (en) * | 1990-11-20 | 1992-05-27 | Hoover Universal,Inc. | Die head for plastic with barrier forming material |
| US5356282A (en) * | 1992-01-21 | 1994-10-18 | The Geon Company | Blow molding extrustion head |
| US20030077347A1 (en) * | 1999-12-10 | 2003-04-24 | Fischer-W. Muller Blasformtechnik Gmbh | Head for coextruding a thermoplastic parison |
| CN101337425A (en) * | 2008-08-12 | 2009-01-07 | 四川大学 | Preparation method and device of high performance polymers pipes |
| CN107379575A (en) * | 2017-09-06 | 2017-11-24 | 青岛克拉波罗塑料科技有限公司 | Glass winding structure wall pipe process equipment and its processing method |
| CN108749055A (en) * | 2018-07-02 | 2018-11-06 | 顺方管业有限公司 | A kind of one-step moulding method and its equipment of solid wall pipe frame plastic composite pipe |
-
2019
- 2019-05-30 CN CN201910461224.5A patent/CN110171119A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3611494A (en) * | 1968-03-18 | 1971-10-12 | Kautex Werke Gmbh | Extrusion head for extruding annular articles of thermoplastic material |
| US3985490A (en) * | 1974-06-04 | 1976-10-12 | Mauser Kommanditgesellschaft | Apparatus for extruding a homogeneous tubular length of soft thermoplastic material |
| US4783299A (en) * | 1985-12-18 | 1988-11-08 | Alphacan | Method and apparatus for extrusion of plastic pipes with composite walls |
| EP0486735A1 (en) * | 1990-11-20 | 1992-05-27 | Hoover Universal,Inc. | Die head for plastic with barrier forming material |
| US5356282A (en) * | 1992-01-21 | 1994-10-18 | The Geon Company | Blow molding extrustion head |
| US20030077347A1 (en) * | 1999-12-10 | 2003-04-24 | Fischer-W. Muller Blasformtechnik Gmbh | Head for coextruding a thermoplastic parison |
| CN101337425A (en) * | 2008-08-12 | 2009-01-07 | 四川大学 | Preparation method and device of high performance polymers pipes |
| CN107379575A (en) * | 2017-09-06 | 2017-11-24 | 青岛克拉波罗塑料科技有限公司 | Glass winding structure wall pipe process equipment and its processing method |
| CN108749055A (en) * | 2018-07-02 | 2018-11-06 | 顺方管业有限公司 | A kind of one-step moulding method and its equipment of solid wall pipe frame plastic composite pipe |
Non-Patent Citations (1)
| Title |
|---|
| 申开智: "《塑料成型模具》", 31 March 2013, 中国轻工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115139543A (en) * | 2022-05-18 | 2022-10-04 | 宁波方力科技股份有限公司 | Production line and production method for winding rib pipes outside polyolefin thin-wall inner pipes |
| CN115139544A (en) * | 2022-05-30 | 2022-10-04 | 宁波方力科技股份有限公司 | Production line and production method for winding rib pipes outside polyolefin solid-wall inner pipes |
| CN115534263A (en) * | 2022-07-29 | 2022-12-30 | 宁波方力科技股份有限公司 | Plastic solid wall winding pipe production line based on rotary die and production process |
| CN115534263B (en) * | 2022-07-29 | 2023-10-17 | 宁波方力科技股份有限公司 | Plastic solid wall winding pipe production line and production process based on rotary die |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110171119A (en) | A kind of helical bellows continuous forming process | |
| CN101168291A (en) | Device for extruding hollow rods | |
| KR20150024538A (en) | manufacturing device of cable duct | |
| CN101444960A (en) | Device for continuously producing composite pipe having pipe joint | |
| CN102235555B (en) | Method for producing continuous fiber reinforced plastic composite pipeline and pipeline produced thereby | |
| CN2568404Y (en) | Prodn. appts. for large bore hollow wall winding pipe | |
| CN213412830U (en) | Die structure for pipe extrusion | |
| CN102514203A (en) | Seamless spiral winding and laminating molding process and equipment for plastic storage tank | |
| CN205044122U (en) | High pressure extrusion moulding machine | |
| CN107379575B (en) | Glass fiber winding structure wall pipe machining equipment and machining method thereof | |
| CN107351354B (en) | Tube extruding machine head of three-layer plastic composite tube with middle layer fiber oriented along circumferential direction | |
| CN105172091A (en) | High-pressure extrusion molding machine | |
| US5840232A (en) | Multi-layer parison extrusion system | |
| CN107139440A (en) | Super high molecular weight polymer tubing active matrix driving pulsation deformation forming method and equipment | |
| CN106608034B (en) | The multi-layer co-extruded extrusion die of continuous tow | |
| CN210283156U (en) | Pipe extruder for producing high-smoothness inner wall PE water pipe | |
| CN206085590U (en) | Processingequipment is extruded to PE pipe vitta | |
| CN107471594A (en) | Plastic pipe and the general conical parallel dual-screw extruding machine of sheet material | |
| CN101249717A (en) | Method and equipment for manufacturing fire engine hose | |
| CN209141482U (en) | A kind of internal-rib enhancing two-component helical bellows production equipment | |
| CN109466053B (en) | Production system and production method for polyethylene glass fiber winding structure wall pipe | |
| CN209176140U (en) | The three-layer co-extruded spiral mould of PE tubing | |
| CN208237253U (en) | Continuous fiber reinforced plastic pressure pipe and its manufacturing device | |
| CN210999911U (en) | Rotary screen type plastic mold | |
| CN105082512A (en) | Flow equalizing method and device for rotor driven by melt extrusion pressure and provided with internal and external screw flights |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190827 |