CN113183433A - Foaming pipe production facility - Google Patents
Foaming pipe production facility Download PDFInfo
- Publication number
- CN113183433A CN113183433A CN202110560864.9A CN202110560864A CN113183433A CN 113183433 A CN113183433 A CN 113183433A CN 202110560864 A CN202110560864 A CN 202110560864A CN 113183433 A CN113183433 A CN 113183433A
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- China
- Prior art keywords
- mould
- stage
- film material
- flow channel
- screw
- 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.)
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- 238000005187 foaming Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 50
- 239000004698 Polyethylene Substances 0.000 claims abstract description 32
- -1 polyethylene Polymers 0.000 claims abstract description 32
- 229920000573 polyethylene Polymers 0.000 claims abstract description 32
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 11
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 11
- 238000004049 embossing Methods 0.000 claims description 34
- 239000006260 foam Substances 0.000 claims description 14
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 abstract description 18
- 239000010408 film Substances 0.000 description 33
- 238000005520 cutting process Methods 0.000 description 9
- 239000012943 hotmelt Substances 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping
-
- 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)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention particularly relates to a foaming tube production device, which comprises a die body, wherein: the surface of the mould body is respectively provided with a foamed polyethylene material inlet, a film material injection port and a crosslinked polyethylene injection port, a main flow channel, a crosslinked flow channel and a film material flow channel are respectively arranged in the mould body, the foamed polyethylene material inlet is communicated with the main flow channel, the film material injection port is communicated with the film material flow channel, a flow guide column is arranged in the main flow channel, a third-stage mouth mould is screwed at the outlet of the main flow channel, one end of the flow guide column penetrates through the third-stage mouth mould and extends to the outside, and a discharge gap is reserved between the inner surface of the third-stage mouth mould and the outer surface of the flow guide column. According to the invention, the main runner, the cross-linking runner and the film material runner are respectively arranged in the die body, and the foamed polyethylene layer, the cross-linking polyethylene layer and the film layer are integrally formed to form an extruded finished product by matching with the discharge gap between the third-stage port die and the flow guide column, so that the occupied area is greatly reduced, the whole volume is further reduced, and the product quality is improved.
Description
Technical Field
The invention relates to the technical field of foaming tubes, in particular to a foaming tube production device.
Background
The auxiliary machine of the foaming pipe production line mainly comprises a traction device and a cutting device, wherein the traction device is usually used for drawing an outlet pipe of an extrusion die outlet of a foaming pipe extruder, each traction device comprises a traction motor, each traction motor is used for driving a pair of traction claws to drive the foaming pipe to move forwards, and a pair of traction claws are used for adjusting and pressing the foaming pipe through a screw rod to drive the foaming pipe to advance along the outlet pipe direction. The cutting equipment generally adopts a cutter lifting cutting machine, a cutting machine table of the cutter lifting cutting machine adopts a traveling cylinder to drive the cutter lifting cutting machine to advance along the pipe outlet direction of a pipe, a cutter lifting cylinder, a cutting motor, a cutting knife and a clamping mechanism for clamping the pipe are arranged on the cutting machine table, and the clamping mechanism comprises a pair of clamping blocks and a clamping cylinder for driving the pair of clamping blocks to move.
However, two or more layers of foam tubes are required, and the two foam polyethylene extruders are used in cooperation, so that in order to prevent the surface of the foam tubes from being damaged, the film extruders are required to output films, the films are placed on the surfaces of the foam tubes, and a plurality of tractors are also matched, so that the occupied area is large. Wherein, obvious boundaries and larger gaps exist between more than two layers of foaming pipes, and the diameters of the whole sections have better different sizes, thereby influencing the quality of the whole product to a certain extent.
Disclosure of Invention
The invention aims to overcome the technical problems and provide a foaming tube production device which greatly reduces the whole occupied area and improves the product quality.
The invention describes a foaming tube production device, which comprises a die body, wherein: the surface of the mould body is respectively provided with a foamed polyethylene material inlet, a film material injection port and a crosslinked polyethylene injection port, a main flow channel, a crosslinked flow channel and a film material flow channel are respectively arranged in the mould body, the foamed polyethylene material inlet is communicated with the main flow channel, the film material injection port is communicated with the film material flow channel, a flow guide column is arranged in the main flow channel, a third-stage mouth mould is screwed at the outlet of the main flow channel, one end of the flow guide column penetrates through the third-stage mouth mould and extends to the outside, and a discharge gap is reserved between the inner surface of the third-stage mouth mould and the outer surface of the flow guide column.
The die body is connected with an auxiliary shell in a threaded manner, a second-stage guide plate is arranged in the auxiliary shell, and the auxiliary shell is connected with the second-stage guide plate through a first screw rod and a second screw rod.
And particularly, a first-stage guide plate is arranged in the auxiliary shell, and the auxiliary shell is connected with the first-stage guide plate through a third screw and a fourth screw.
The surface of the die body is connected with a connecting piece in a threaded manner, a third-stage guide plate is arranged in the die body, and the third-stage guide plate is connected with the connecting piece through a fifth screw and a sixth screw.
Specifically, the third-stage port die is connected with the second-stage port die in a threaded manner.
Specifically, a first-stage neck mold is mounted in the second-stage neck mold.
Specifically, the film material injection port is connected with a film extruder.
Specifically, the crosslinked polyethylene injection port is connected with a crosslinked extruder.
Specifically, the foamed polyethylene injection port is connected with a foamed polyethylene extruder, and a chain type pipeline mold is arranged at an output port of the third-stage port mold.
The front surface of the chain type pipeline mould is provided with an upper embossing mould, an air cylinder and a lower embossing mould, the upper embossing mould is connected with the air cylinder, the lower embossing mould is fixed on the front surface of the chain type pipeline mould, the air cylinder is fixed on the front surface of the chain type pipeline mould, and the upper embossing mould faces the lower embossing mould. The upper embossing die and the lower embossing die are respectively provided with embossing.
The invention has the beneficial effects that: the structure is characterized in that the main runner, the cross-linking runner and the film material runner are respectively arranged in the die body, and the discharge gap between the third-stage die and the guide column is matched to integrally form an extruded finished product among the foamed polyethylene layer, the cross-linking polyethylene layer and the film layer, so that the occupied area is greatly reduced, the whole volume is further reduced, the product quality is improved, and the production efficiency is improved.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view showing a connection structure of a die body, a crosslinking extruder, a foamed polyethylene extruder and a film extruder according to the present invention.
Fig. 3 is a schematic structural view of a chain type pipeline mold.
Fig. 4 is a schematic view of the structure of the upper embossing die.
The reference numbers are as follows:
the die comprises a die body 1, a film material injection port 101, a main flow channel 102, a cross-linking flow channel 103, a film material flow channel 104, a cross-linking polyethylene injection port 105, a flow guide column 2, an auxiliary shell 3, a foamed polyethylene material inlet 301, a second-stage flow guide plate 4, a first screw 401, a second screw 402, a first-stage flow guide plate 5, a third screw 501, a fourth screw 502, a connecting piece 6, a fifth screw 601, a sixth screw 602, a third-stage flow guide plate 7, a third-stage neck ring mold 8, a second-stage neck ring mold 9, a first-stage neck ring mold 10, a cross-linking extruder 11, a foamed polyethylene extruder 12, a film extruder 13, a chain type pipeline die 14, an upper embossing die 1401, a cylinder 1402, a lower embossing die 1403 and 1404.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1 to 4, the present invention describes a foam tube producing apparatus including a die body 1, wherein: the surface of the mould body 1 is respectively provided with a foamed polyethylene material inlet 301, a film material injection port 101 and a crosslinked polyethylene injection port 105, a main flow passage 102, a crosslinked flow passage 103 and a film material flow passage 104 are respectively arranged in the mould body 1, the foamed polyethylene material inlet 301 is communicated with the main flow passage 102, the film material injection port 101 is communicated with the film material flow passage 104, a flow guide column 2 is arranged in the main flow passage 102, a third-stage neck ring mould 8 is screwed at the outlet of the main flow passage 102, one end of the flow guide column 2 penetrates through the third-stage neck ring mould 8 to extend to the outside, and a discharge gap is reserved between the inner surface of the third-stage neck ring mould 8 and the outer surface of the flow guide column 2.
This structure is equipped with sprue 102, cross-linking runner 103 and film material runner 104 in through mould body 1 respectively, and the ejection of compact clearance between cooperation third level bush 8 and the guide post 2 implements between expanded polyethylene layer, cross-linking polyethylene layer, the thin layer three an organic whole and forms and extrude the finished product, plays greatly reduced occupation area and further reduces whole volume to promote product quality effect and promote production efficiency.
The foamed polyethylene material inlet 301 inputs a foamed polyethylene hot melt material, the foamed polyethylene hot melt material flows through the main flow channel 102 and is output to a discharge gap between the third-stage port die 8 and the flow guide column 2, the discharge gap outputs a formed foamed pipe, meanwhile, the crosslinked polyethylene hot melt material is input into the crosslinked polyethylene injection port 105 and is output to the third-stage port die 8 through the crosslinked flow channel 103, the foamed pipe forms a second foamed layer, the film material flow channel 104 inputs a film material in a hot melt state and is output to the third-stage port die 8 through the film material flow channel 104, and a film layer is formed on the surface of the second foamed layer, wherein the foamed pipe, the second foamed layer and the film layer are formed at one time, so that the product quality effect is improved, and the production efficiency is improved. The foaming pipe and the second foaming layer can perform better crosslinking action when being extruded simultaneously, so that the boundary between the foaming pipe and the second foaming layer is not obvious, and the quality problem of the foaming pipe caused by the existing three-time injection molding process is mainly solved. For example, the problem of wrinkles on the surface of the foaming pipe can be solved, and three devices required by three injection molding processes can be solved, so that a certain space is occupied.
The main flow channel 102 is located at the center of the cross-linking flow channel 103, and the main flow channel 102 is separated from the cross-linking flow channel 103; the membrane material flow path 104 is located outside the cross-linking flow path 103, and the membrane material flow path 104 is separated from the cross-linking flow path 103. The main flow channel 102, the cross-linking flow channel 103 and the film material flow channel 104 can be extruded separately.
The size of the diversion column 2 determines the inner aperture of the foaming pipe.
This structure 1 spiro union of mould body has auxiliary housing 3, is equipped with second grade guide plate 4 in the auxiliary housing 3, is connected through first screw 401 and second screw 402 between auxiliary housing 3 and the second grade guide plate 4. The first screw 401 and the second screw 402 are used in combination for adjusting the position of the second-stage baffle 4.
This structure be equipped with first order guide plate 5 in the auxiliary housing 3, be connected through third screw rod 501 and fourth screw rod 502 between auxiliary housing 3 and the first order guide plate 5. The third screw 501 and the fourth screw 502 are used in combination to adjust the position of the first-stage baffle 5.
The surface of the die body 1 is connected with a connecting piece 6 in a threaded manner, a third-stage guide plate 7 is arranged in the die body 1, and the third-stage guide plate 7 is connected with the connecting piece 6 through a fifth screw 601 and a sixth screw 602. The fifth screw 601 and the sixth screw 602 are used in combination to adjust the position of the third-stage baffle 7.
In the structure, the third-stage neck ring mold 8 is in threaded connection with a second-stage neck ring mold 9. In the structure, a first-stage neck mold 10 is arranged in the second-stage neck mold 9. The second-stage mouth mold 9 and the first-stage mouth mold 10 implement a contraction output port to form the foaming tube, the second foaming layer and the film layer at one time, and perform foaming molding at the output port of the first-stage mouth mold 10.
The film material injection port 101 of the structure is connected with a film extruder 13. The crosslinked polyethylene injection port 105 of the structure is connected with a crosslinked extruder 11. The injection port 105 of the foamed polyethylene is connected with a foamed polyethylene extruder 12. The film extruder 13, the crosslinking extruder 11 and the foamed polyethylene extruder 12 respectively feed the foamed polyethylene material, the crosslinked polyethylene material and the film material to the foamed polyethylene material inlet 301, the film material inlet 101 and the crosslinked polyethylene inlet 105.
The film extruder 13, the crosslinking extruder 11 and the foamed polyethylene extruder 12 are all of the extruder type, and the screw extruder is capable of fully plasticizing and uniformly mixing the materials to extrude the materials by means of pressure and shearing force generated by rotation of a screw.
In the structure, a chain type pipeline mould 14 is arranged at the output port of the third-stage mouth mould 8. The chain type pipeline mould 14 is mainly used for connecting and profiling the surface of the second foaming layer.
The front surface of the chain type pipeline mould 14 in the structure is provided with an upper embossing mould 1401, an air cylinder 1402 and a lower embossing mould 1403, the upper embossing mould 1401 is connected with the air cylinder 1402, the lower embossing mould 1403 is fixed on the front surface of the chain type pipeline mould 14, the air cylinder 1402 is fixed on the front surface of the chain type pipeline mould 14, the upper embossing mould 1401 faces the lower embossing mould 1403, and the upper embossing mould 1401 and the lower embossing mould 1403 are respectively provided with an embossing 1404.
The cylinder 1402 drives the upper embossing die 1401 to move downwards, the second foaming layer and the thin film layer are extruded, lines are formed on the surfaces of the second foaming layer and the thin film layer, the upper embossing die 1401 and the lower embossing die 1403 are respectively provided with concave arc-shaped surfaces, and the embossing 1404 is arranged on the concave arc-shaped surfaces. The size of the concave arc-shaped surface is matched with the size of the whole pipe diameter.
The present invention is not limited to the above-described preferred embodiments, but rather, any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A foaming pipe production facility, includes mould body (1), its characterized in that: the surface of mould body (1) is equipped with foaming polyethylene material entry (301) respectively, film material filling opening (101) and crosslinked polyethylene filling opening (105), be equipped with sprue (102) in mould body (1) respectively, crosslinked runner (103) and film material runner (104), foaming polyethylene material entry (301) are linked together with sprue (102), film material filling opening (101) are linked together with film material runner (104), be equipped with guide pillar (2) in sprue (102), the exit spiro union of sprue (102) has third level bush (8), guide pillar (2) one end is passed third level bush (8) and is extended to outside, leave ejection of compact clearance between the internal surface of third level bush (8) and the surface of guide pillar (2).
2. A foam tube producing apparatus according to claim 1, wherein: the die is characterized in that the die body (1) is connected with an auxiliary shell (3) in a threaded manner, a second-stage guide plate (4) is arranged in the auxiliary shell (3), and the auxiliary shell (3) is connected with the second-stage guide plate (4) through a first screw (401) and a second screw (402).
3. A foam tube producing apparatus according to claim 2, wherein: a first-stage guide plate (5) is arranged in the auxiliary shell (3), and the auxiliary shell (3) is connected with the first-stage guide plate (5) through a third screw (501) and a fourth screw (502).
4. A foam tube producing apparatus according to claim 1, wherein: the surface of the die body (1) is connected with a connecting piece (6) in a threaded manner, a third-stage guide plate (7) is arranged in the die body (1), and the third-stage guide plate (7) is connected with the connecting piece (6) through a fifth screw (601) and a sixth screw (602).
5. A foam tube producing apparatus according to claim 1, wherein: the third-stage mouth mold (8) is in threaded connection with a second-stage mouth mold (9).
6. A foam tube production apparatus according to claim 5, wherein: and a first-stage mouth mold (10) is arranged in the second-stage mouth mold (9).
7. A foam tube producing apparatus according to claim 1, wherein: the film material injection port (101) is connected with a film extruder (13).
8. A foam tube producing apparatus according to claim 1, wherein: the crosslinked polyethylene injection port (105) is connected with a crosslinked extruder (11).
9. A foam tube producing apparatus according to claim 1, wherein: the foamed polyethylene injection port (105) is connected with a foamed polyethylene extruder (12), and a chain type pipeline mold (14) is arranged at an output port of the third-stage mouth mold (8).
10. A foam tube producing apparatus according to claim 9, wherein: the front surface of the chain type pipeline mould (14) is provided with an upper embossing mould (1401), an air cylinder (1402) and a lower embossing mould (1403), the upper embossing mould (1401) is connected with the air cylinder (1402), the lower embossing mould (1403) is fixed on the front surface of the chain type pipeline mould (14), the air cylinder (1402) is fixed on the front surface of the chain type pipeline mould (14), the upper embossing mould (1401) faces the lower embossing mould (1403), and the upper embossing mould (1404) and the lower embossing mould (1403) are respectively provided with an embossing (1404).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110560864.9A CN113183433A (en) | 2021-05-22 | 2021-05-22 | Foaming pipe production facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110560864.9A CN113183433A (en) | 2021-05-22 | 2021-05-22 | Foaming pipe production facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113183433A true CN113183433A (en) | 2021-07-30 |
Family
ID=76984672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110560864.9A Pending CN113183433A (en) | 2021-05-22 | 2021-05-22 | Foaming pipe production facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113183433A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09109279A (en) * | 1995-10-20 | 1997-04-28 | Sekisui Chem Co Ltd | Manufacture of foamed resin tube with crest pattern |
| JPH09267405A (en) * | 1996-04-02 | 1997-10-14 | Sekisui Chem Co Ltd | Production of surface embossed foam tube |
| KR19980073852A (en) * | 1997-03-20 | 1998-11-05 | 권문구 | Manufacturing method of heat shrinkable embossed tube |
| CN201872319U (en) * | 2010-10-16 | 2011-06-22 | 青岛亚桑机械有限公司 | Co-extrusion forming machine head for three-layer composite plastic pipe |
| CN202241907U (en) * | 2011-05-28 | 2012-05-30 | 天华化工机械及自动化研究设计院 | Composite machine head for annular coating of small-bore three-layer PE (polyethylene) anticorrosion tube |
| CN104275790A (en) * | 2014-09-26 | 2015-01-14 | 北京化工大学 | Three-layer co-extrusion plastic film blow molding machine head with combined type rotary core rod and layered two-channel temperature control device |
| CN104552873A (en) * | 2015-01-07 | 2015-04-29 | 佛山市日丰企业有限公司 | Co-extruding mold of plastic composite pipe with foamed outer layer |
| WO2018124213A1 (en) * | 2016-12-27 | 2018-07-05 | 株式会社プラ技研 | Apparatus for manufacturing foamed resin tube and foamed resin tube |
| CN210100630U (en) * | 2019-05-16 | 2020-02-21 | 上海白蝶管业科技股份有限公司 | Three-layer co-extrusion machine head structure of PP-R glass fiber reinforced pipe for fire fighting |
| CN211165212U (en) * | 2019-09-27 | 2020-08-04 | 天津军星管业集团有限公司 | Multilayer co-extrusion composite die head device for producing fiber-reinforced composite random copolymerization polypropylene pipe |
| CN215359748U (en) * | 2021-05-22 | 2021-12-31 | 佛山市顺德朋胜家电制造有限公司 | Foaming pipe production facility |
-
2021
- 2021-05-22 CN CN202110560864.9A patent/CN113183433A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09109279A (en) * | 1995-10-20 | 1997-04-28 | Sekisui Chem Co Ltd | Manufacture of foamed resin tube with crest pattern |
| JPH09267405A (en) * | 1996-04-02 | 1997-10-14 | Sekisui Chem Co Ltd | Production of surface embossed foam tube |
| KR19980073852A (en) * | 1997-03-20 | 1998-11-05 | 권문구 | Manufacturing method of heat shrinkable embossed tube |
| CN201872319U (en) * | 2010-10-16 | 2011-06-22 | 青岛亚桑机械有限公司 | Co-extrusion forming machine head for three-layer composite plastic pipe |
| CN202241907U (en) * | 2011-05-28 | 2012-05-30 | 天华化工机械及自动化研究设计院 | Composite machine head for annular coating of small-bore three-layer PE (polyethylene) anticorrosion tube |
| CN104275790A (en) * | 2014-09-26 | 2015-01-14 | 北京化工大学 | Three-layer co-extrusion plastic film blow molding machine head with combined type rotary core rod and layered two-channel temperature control device |
| CN104552873A (en) * | 2015-01-07 | 2015-04-29 | 佛山市日丰企业有限公司 | Co-extruding mold of plastic composite pipe with foamed outer layer |
| WO2018124213A1 (en) * | 2016-12-27 | 2018-07-05 | 株式会社プラ技研 | Apparatus for manufacturing foamed resin tube and foamed resin tube |
| CN210100630U (en) * | 2019-05-16 | 2020-02-21 | 上海白蝶管业科技股份有限公司 | Three-layer co-extrusion machine head structure of PP-R glass fiber reinforced pipe for fire fighting |
| CN211165212U (en) * | 2019-09-27 | 2020-08-04 | 天津军星管业集团有限公司 | Multilayer co-extrusion composite die head device for producing fiber-reinforced composite random copolymerization polypropylene pipe |
| CN215359748U (en) * | 2021-05-22 | 2021-12-31 | 佛山市顺德朋胜家电制造有限公司 | Foaming pipe production facility |
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