CN108000858B - HDPE winding pipe production facility - Google Patents
HDPE winding pipe production facility Download PDFInfo
- Publication number
- CN108000858B CN108000858B CN201711318710.9A CN201711318710A CN108000858B CN 108000858 B CN108000858 B CN 108000858B CN 201711318710 A CN201711318710 A CN 201711318710A CN 108000858 B CN108000858 B CN 108000858B
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- pipe
- heating
- winding pipe
- bonded
- winding
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- 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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- 238000004804 winding Methods 0.000 title claims abstract description 70
- 229920001903 high density polyethylene Polymers 0.000 title claims abstract description 19
- 239000004700 high-density polyethylene Substances 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 77
- 238000000926 separation method Methods 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 3
- 239000007769 metal material Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000005507 spraying Methods 0.000 claims description 10
- 238000005485 electric heating Methods 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000000155 melt Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 9
- 239000007921 spray Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
- B29C53/62—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels rotatable about the winding axis
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/84—Heating or cooling
- B29C53/845—Heating or cooling especially adapted for winding and joining
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention relates to HDPE winding pipe production equipment, which comprises a guiding device, a winding device, a heating device, a filling device and a cooling device, wherein the heating device comprises a heating block arranged on the end face of the winding pipe to be bonded and a heat conducting pipe connected to the heating block; the guide device comprises a guide wheel, the guide wheel comprises a rotating shaft, a roller body made of ceramic materials and separation blades made of metal materials, one separation blade is located on one side, to be bonded, of the square pipe, the other separation blade is located on the outer side of the square pipe, and an electric heating assembly for heating the separation blade is arranged in the separation blade. The invention can heat the end surface to be bonded of the winding pipe and the side surface of the square pipe simultaneously, the heating is uniform, the HDPE square pipe can be completely bonded together when being bonded with the melt adhesive, and the pipe can not be disconnected.
Description
Technical Field
The invention relates to HDPE winding pipe production equipment.
Background
HDPE pipe is the replacement product of traditional steel pipe, polyvinyl chloride water pipe, mainly used in municipal works water supply system, building indoor water supply system, outdoor buried water supply system and residential area, plant area buried water supply system, old pipeline repair, water treatment engineering pipe-line system, garden, irrigation and other fields industrial water pipe, etc. Need use the molten resin glue to bond and seal when rolling up system square pipe, prior art is being close to correction roller department ann and has a hot-blast rifle, heats square pipe, makes square pipe and the better bonding of melten gel be in the same place, but this kind of method exists heating temperature not high, and the defect of difficult thermally equivalent leads to square pipe bonding insecure, and tubular product easily breaks off.
Disclosure of Invention
The invention aims to provide HDPE winding pipe production equipment, which solves the problems that in the prior art, the heating temperature is not high, the heating is not uniform, square pipes are not firmly bonded, and the pipes are easy to break.
The above object of the present invention is achieved by the following technical solutions: the HDPE winding pipe production equipment comprises a guiding device, a winding device, a heating device, a filling device and a cooling device, wherein the winding device comprises a winding drum and a driving assembly for driving the winding drum to rotate, the winding drum is rotatably mounted on a rack, the guiding device is arranged on one side of the winding drum and used for guiding a square pipe into the winding drum to be wound, the heating device comprises a heating block arranged on the end face of the winding pipe to be bonded and a heat conduction pipe connected to the heating block, the heating block is fixed on the rack through a support, the heating block is of a hollow structure, and hot air is introduced into the heating block through the heat conduction pipe and used for heating the end face of the winding pipe to be bonded; the guiding device comprises a guide wheel, the guide wheel comprises a rotating shaft, a roller body made of ceramic materials and a separation blade made of metal materials, the roller body and the separation blade are rotatably installed in the rotating shaft, the separation blade is arranged at the two ends of the roller body in a divided mode, one separation blade is located on one side, to be bonded, of the square pipe, the other separation blade is located on the outer side of the square pipe, an electric heating assembly for heating the separation blade is arranged in the separation blade, and the temperature of the separation blade, to be bonded, of the square pipe is higher than that of the separation blade located on the outer side of the square pipe.
Preferably, the heating block is of an arc structure concentric with the winding pipe, and comprises a first heating part and a second heating part which are of an integral structure, wherein the first heating part is arranged at the position of the end face to be bonded of the winding pipe, is attached to the end face and is used for heating the end face to be bonded of the winding pipe; the second heating part is arranged on the outer side of the pipe wall of the winding pipe and used for heating the pipe wall, close to the end face to be bonded, of the winding pipe, and the first heating part and the second heating part are both provided with cavities communicated with each other.
Preferably, one side of the first heating part, which faces the end face to be bonded of the winding pipe, is provided with a heat conduction seam which is arranged along an arc of the end face of the winding pipe and is communicated with the cavity, and hot air in the cavity of the first heating part flows to the end face to be bonded of the winding pipe through the heat conduction seam.
Preferably, the guide device further comprises a support rod fixed on the rack and a swing rod hinged to the support rod, the rotating shaft is fixedly connected to the swing rod, and the swing rod drives the guide wheel to swing along the moving direction of the square pipe.
Preferably, a riding wheel for supporting the square pipe is arranged below the guide wheel, and the guide wheel and the riding wheel respectively guide the upper side and the lower side of the square pipe.
Preferably, a sliding seat used for installing the riding wheel is arranged on the rack, the sliding seat is connected to the rack in a sliding mode and slides up and down, and a pull rod is connected to the upper ends of the sliding seat and the swing rod, so that when the sliding seat moves downwards, the swing rod is pulled to swing, and the guide wheel is driven to swing upwards.
When the heating temperature of the separation blade is too high, the square pipe is softened and sags, the square pipe acts on the supporting wheel, so that the sliding seat moves downwards, the swing rod is pulled by the pull rod to rotate, the distance between the guide wheel and the square pipe is controlled, and the heating temperature of the square pipe is adjusted.
Preferably, the reel includes the commentaries on classics roller, sets up the fixed end plate at commentaries on classics roller both ends, and wherein a fixed end plate fixed mounting is in the frame, change the roller and rotate and install fixed end plate is last and wind fixed end plate circumference evenly distributed, drive assembly drive change the roller synchronous rotation.
Preferably, the filling device comprises a feed box arranged on the rack, a motor is arranged on one side of the feed box, a feeding pipe is arranged on the other side of the feed box, the feeding pipe extends to the position of the winding drum, and the discharging direction of the outlet of the feeding pipe points to the radial direction of the winding drum.
Preferably, the cooling device comprises a water pipe and water spray pipes, the water spray pipes are distributed on the water pipe at intervals along the axial direction of the winding drum, and the spraying directions of the water spray pipes point to the radial direction of the winding drum.
The invention has the beneficial effects that: the invention can heat the end surface to be bonded of the winding pipe and the side surface of the square pipe simultaneously, the heating is uniform, the HDPE square pipe can be completely bonded together when being bonded with the melt adhesive, and the pipe can not be disconnected.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of a guide device in an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a heating block in an embodiment of the invention;
in the figure: 1-machine frame, 2-reel, 21-roller, 3-filling device, 31-bin, 32-feeding pipe, 4-guiding device, 41-guiding wheel, 411-roller body, 412-baffle, 42-swing rod, 43-supporting rod, 44-pull rod, 45-sliding seat, 46-supporting wheel, 5-heating device, 51-heating block, 511-first heating part, 512-second heating part, 513-heat conducting seam and 52-heat conducting pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Example (b): as shown in fig. 1-3, an HDPE winding pipe production facility, including guider 4, wind device, heating device 5, filling device 3 and cooling device, wind device includes reel 2 and drive 2 pivoted drive assembly of reel, reel 2 rotates and installs in frame 1, and reel 2 includes to change roller 21, set up the fixed end plate at changeing roller 21 both ends, and wherein a fixed end plate fixed mounting is in frame 1, change roller 21 rotate install fixed end plate on and around fixed end plate circumference evenly distributed, the drive assembly drive change roller 21 synchronous rotation. Wherein the driving component is a chain wheel and a chain, the end part of the rotating roller 21 is provided with the chain wheel, the chain is wound on the chain wheels of all the rotating rollers 21, and the rotating rollers 21 are driven by the driving motor to synchronously rotate in the same direction.
As shown in fig. 1 and fig. 3, the heating device 5 includes a heating block 51 disposed on the to-be-bonded end surface of the winding pipe and a heat pipe 52 connected to the heating block 51, the heating block 51 is fixed on the frame 1 through a bracket, the heating block 51 is a hollow structure, and the heat pipe 52 introduces a hot air flow into the heating block 51 for heating the to-be-bonded end surface of the winding pipe. The heating block 51 is an arc structure concentric with the winding pipe, and comprises a first heating part 511 and a second heating part 512 which are integrated, wherein the first heating part 511 is arranged at the position of the end face of the winding pipe to be bonded, is attached to the end face and is used for heating the end face of the winding pipe to be bonded; the second heating part 512 is disposed outside a pipe wall of the winding pipe and used for heating the pipe wall of the winding pipe close to the end face to be bonded, and the first heating part and the second heating part 512 are both provided with cavities communicated with each other. One side of the first heating part 511 facing the end face to be bonded of the winding pipe is provided with a heat conducting seam 513 which is arranged along the arc of the end face of the winding pipe and is communicated with the cavity, and hot air in the cavity of the first heating part 511 flows to the end face to be bonded of the winding pipe through the heat conducting seam 513.
As shown in fig. 1 and 2, a guide 4 is provided at one side of the reel 2 for guiding the square tube material onto the reel 2 for winding. The guiding device 4 comprises a guiding wheel 41, the guiding wheel 41 comprises a rotating shaft, a ceramic roller body 411 and a blocking piece 412 made of metal (copper or aluminum), the roller body 411 and the blocking piece 412 are rotatably installed on the rotating shaft, the blocking piece 412 is arranged at two ends of the roller body 411 respectively, one blocking piece 412 is located on one side, to be bonded, of the square pipe, the other blocking piece 412 is located on the outer side of the square pipe, an electric heating assembly which is used for heating the blocking piece 412 is arranged in the blocking piece 412, the electric heating assembly is an electric heating wire, and the temperature of the blocking piece 412 located on one side, to be bonded, of the square pipe is higher than that of the blocking piece 412 located on the outer side of the. The guiding device 4 further comprises a supporting rod 43 fixed on the rack 1 and a swing rod 42 hinged to the supporting rod 43, the rotating shaft is fixedly connected to the swing rod 42, and the swing rod 42 drives the guide wheel 41 to swing along the moving direction of the square pipe. A riding wheel 46 for supporting the square pipe is arranged below the guide wheel 41, and the guide wheel 41 and the riding wheel 46 respectively guide the upper side and the lower side of the square pipe. The frame 1 is provided with a sliding seat 45 for mounting the riding wheel 46, and the sliding seat 45 is connected to the frame 1 in a sliding manner through a sliding rail and slides up and down. The upper ends of the sliding seat 45 and the swing rod 42 are connected with a pull rod 44, one end of the pull rod 44 is hinged on the sliding seat 45, and the other end of the pull rod 44 is hinged on the end part of the swing rod 42. When the sliding seat 45 moves downwards, the swinging rod 42 is pulled to swing, and the guide wheel 41 is driven to swing upwards.
The filling device 3 comprises a feed box 31 arranged on the frame 1, wherein one side of the feed box 31 is provided with a motor, the other side of the feed box 31 is provided with a feeding pipe 32, the feeding pipe 32 extends to the position of the winding drum 2, and the discharging direction of the outlet of the feeding pipe 32 points to the radial direction of the winding drum 2.
The cooling device is arranged under the winding drum 2 and comprises a water conveying pipe and water spraying pipes, wherein the water spraying pipes are distributed on the water conveying pipe at intervals along the axial direction of the winding drum 2, and the spraying directions of the water spraying pipes point to the radial direction of the winding drum 2. A water receiving tray is arranged below the water spraying pipe.
Claims (9)
1. The utility model provides a HDPE winding pipe production facility, includes guider (4), wind, heating device (5), filling device (3) and cooling device, wind includes reel (2) and drive reel (2) pivoted drive assembly, reel (2) rotate and install in frame (1), guider (4) set up one side of reel (2) is used for winding on leading-in reel (2) of square tubular product, its characterized in that: the heating device (5) comprises a heating block (51) arranged on the end face to be bonded of the winding pipe and a heat conduction pipe (52) connected to the heating block (51), the heating block (51) is fixed on the rack (1) through a support, the heating block (51) is of a hollow structure, and hot air flow is introduced into the heating block (51) through the heat conduction pipe (52) and used for heating the end face to be bonded of the winding pipe; guider (4) include leading wheel (41), leading wheel (41) are including pivot, ceramic material's roll body (411) and metal material's separation blade (412), roll body (411) with separation blade (412) rotate to be installed in the pivot, separation blade (412) branch is located the both ends of roll body (411), one of them separation blade (412) are located one side of waiting to bond of square tubular product, and another separation blade (412) are located the outside of square tubular product, be equipped with in separation blade (412) with the electric heat component of separation blade (412) heating, the temperature that is located separation blade (412) of waiting to bond one side of square tubular product is higher than the temperature that is located separation blade (412) in the outside of square tubular product.
2. The HDPE winding pipe production equipment according to claim 1, wherein: the heating block (51) is of an arc structure concentric with the winding pipe and comprises a first heating part (511) and a second heating part (512) which are of an integral structure, wherein the first heating part (511) is arranged at the position of the end face to be bonded of the winding pipe, is attached to the end face and is used for heating the end face to be bonded of the winding pipe; the second heating part (512) is arranged on the outer side of the pipe wall of the winding pipe and used for heating the pipe wall, close to the end face to be bonded, of the winding pipe, and the first heating part and the second heating part (512) are both provided with cavities communicated with each other.
3. The HDPE winding pipe production equipment according to claim 2, wherein: one side of the first heating part (511) facing the end face to be bonded of the winding pipe is provided with a heat conduction seam (513) which is arranged along the arc of the end face of the winding pipe and is communicated with the cavity, and hot air in the cavity of the first heating part (511) flows to the end face to be bonded of the winding pipe through the heat conduction seam (513).
4. The HDPE winding pipe production equipment according to claim 1, wherein: the guide device (4) further comprises a supporting rod (43) fixed on the rack (1) and a swing rod (42) hinged to the supporting rod (43), the rotating shaft is fixedly connected to the swing rod (42), and the swing rod (42) drives the guide wheel (41) to swing along the moving direction of the square pipe.
5. The HDPE winding pipe production equipment according to claim 4, wherein: a riding wheel (46) used for bearing the square pipe is arranged below the guide wheel (41), and the guide wheel (41) and the riding wheel (46) respectively guide the upper side and the lower side of the square pipe.
6. The HDPE winding pipe production equipment according to claim 5, wherein: the automatic lifting device is characterized in that a sliding seat (45) used for installing the riding wheel (46) is arranged on the rack (1), the sliding seat (45) is connected with the rack (1) in a sliding mode and slides up and down, a pull rod (44) is connected to the upper end of the sliding seat (45) and the upper end of the swing rod (42), so that the sliding seat (45) pulls the swing rod (42) to swing when moving downwards, and drives the guide wheel (41) to swing upwards.
7. The HDPE winding pipe production equipment according to claim 1, wherein: reel (2) are including changeing roller (21), setting at the fixed end plate that changes roller (21) both ends, and wherein a fixed end plate fixed mounting is in frame (1), change roller (21) rotate to be installed fixed end plate is last and wind fixed end plate circumference evenly distributed, the drive assembly drive it rotates in step to change roller (21).
8. The HDPE winding pipe production equipment according to claim 1, wherein: filling device (3) are including setting up workbin (31) on frame (1), one side of workbin (31) is equipped with the motor, and the opposite side is equipped with conveying pipe (32), conveying pipe (32) extend to reel (2) department, the ejection of compact direction of conveying pipe (32) export points to the radial direction of reel (2).
9. The HDPE winding pipe production equipment according to claim 1, wherein: the cooling device comprises a water conveying pipe and water spraying pipes, wherein the water spraying pipes are distributed on the water conveying pipe at intervals along the axial direction of the winding drum (2), and the spraying directions of the water spraying pipes point to the radial direction of the winding drum (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711318710.9A CN108000858B (en) | 2017-12-12 | 2017-12-12 | HDPE winding pipe production facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711318710.9A CN108000858B (en) | 2017-12-12 | 2017-12-12 | HDPE winding pipe production facility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108000858A CN108000858A (en) | 2018-05-08 |
| CN108000858B true CN108000858B (en) | 2020-05-19 |
Family
ID=62058113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711318710.9A Active CN108000858B (en) | 2017-12-12 | 2017-12-12 | HDPE winding pipe production facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108000858B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936937A (en) * | 2021-01-27 | 2021-06-11 | 吉安茹姿科技有限公司 | HDPE winding pipe production equipment and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0025971B1 (en) * | 1979-09-25 | 1983-05-04 | Pont-A-Mousson S.A. | Machine for the continuous production of plastics tubes by helicoidal winding |
| WO2000035660A1 (en) * | 1998-12-01 | 2000-06-22 | Uponor Innovation Ab | Spiral wound pipe and a method for manufacturing the same |
| CN103851277A (en) * | 2012-11-30 | 2014-06-11 | 上海金纬管道设备制造有限公司 | Production method for steel-plastic warping and soldering pipe |
| CN203730940U (en) * | 2013-12-26 | 2014-07-23 | 山东天迈管业有限公司 | Steel-plastic winding composite pipe and manufacturing device thereof |
| CN205631429U (en) * | 2016-02-27 | 2016-10-12 | 云南驰通环保科技有限责任公司 | Apparatus for producing of two planomural polyethylene winding drain pipes of steel band reinforcing cavity |
| CN106764126A (en) * | 2017-01-25 | 2017-05-31 | 高其容 | A kind of HDPE hollow walls wound drain pipe production equipment and method |
-
2017
- 2017-12-12 CN CN201711318710.9A patent/CN108000858B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0025971B1 (en) * | 1979-09-25 | 1983-05-04 | Pont-A-Mousson S.A. | Machine for the continuous production of plastics tubes by helicoidal winding |
| WO2000035660A1 (en) * | 1998-12-01 | 2000-06-22 | Uponor Innovation Ab | Spiral wound pipe and a method for manufacturing the same |
| CN103851277A (en) * | 2012-11-30 | 2014-06-11 | 上海金纬管道设备制造有限公司 | Production method for steel-plastic warping and soldering pipe |
| CN203730940U (en) * | 2013-12-26 | 2014-07-23 | 山东天迈管业有限公司 | Steel-plastic winding composite pipe and manufacturing device thereof |
| CN205631429U (en) * | 2016-02-27 | 2016-10-12 | 云南驰通环保科技有限责任公司 | Apparatus for producing of two planomural polyethylene winding drain pipes of steel band reinforcing cavity |
| CN106764126A (en) * | 2017-01-25 | 2017-05-31 | 高其容 | A kind of HDPE hollow walls wound drain pipe production equipment and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108000858A (en) | 2018-05-08 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A HDPE winding pipe production equipment Granted publication date: 20200519 Pledgee: Industrial and Commercial Bank of China Co.,Ltd. Xuancheng Xuanzhou Sub branch Pledgor: ANHUI YUNTONG PIPE INDUSTRY TECHNOLOGY CO.,LTD. Registration number: Y2024980008639 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |