CN110608341A - Double-end socket type hollow structure wall winding pipe and manufacturing method thereof - Google Patents
Double-end socket type hollow structure wall winding pipe and manufacturing method thereof Download PDFInfo
- Publication number
- CN110608341A CN110608341A CN201910921936.0A CN201910921936A CN110608341A CN 110608341 A CN110608341 A CN 110608341A CN 201910921936 A CN201910921936 A CN 201910921936A CN 110608341 A CN110608341 A CN 110608341A
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- Prior art keywords
- pipe
- socket
- wall
- hollow
- axial
- 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
- 238000004804 winding Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 239000003292 glue Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000001746 injection moulding Methods 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 241001391944 Commicarpus scandens Species 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- -1 polyethylene structure Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000289 melt material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C45/14221—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure by tools, e.g. cutting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a double-end socket type hollow structure wall winding pipe, which comprises a pipe, a socket and a socket, wherein the pipe comprises a pipe wall formed by spirally winding a hollow pipe and a glue melting layer for bonding adjacent hollow pipes, annular flanges extending inwards in the radial direction are arranged on the inner walls of the socket and the socket, the annular flanges are connected with the pipe wall of the end surface of the pipe in a sealing manner, axial protruding parts extending towards the inner part of the pipe wall of the end surface of the socket end surface of the pipe are arranged on the annular flanges, the glue melting layer exposed out of the end surfaces of the two ends of the pipe and/or the side wall of the hollow pipe are provided with axial holes for the axial protruding parts to pass through, the axial holes are connected with the axial protruding parts in a sealing manner, the tail ends of the axial protruding parts are provided with anti-pulling-. The invention also discloses a method for manufacturing the socket type hollow structure wall winding pipe. Compared with the prior art, the invention has the advantages that: the invention improves the pull-out resistance of the joint, has firm connection, good reliability, and is not easy to break and leak.
Description
Technical Field
The invention relates to the technical field of polyethylene structure wall winding pipes, in particular to a double-end socket type hollow structure wall winding pipe and a manufacturing method thereof.
Background
The polyethylene structure wall winding pipe has the advantages of corrosion resistance, low friction resistance, abrasion resistance and the like, has high ring stiffness, deep burying, good integral forming process, high seam tensile strength and corrosion resistance and longer service life; has multiple reliable and convenient connection modes. The pipe is the current investment hot spot of plastic drainage and pollution discharge pipe.
The hollow structure wall winding pipe is formed by extruding hollow pipes by an extruding machine, uniformly winding the hollow pipes on a roller mould according to a preset position, and filling molten glue between adjacent hollow pipes for bonding.
The existing connection modes of the wall winding pipe with the hollow structure mainly comprise clamp connection, heat shrinkage sleeve connection, electric hot melting belt connection and the like. The thermal shrinkage sleeve is adopted for connection, the bonding degree is not firm, the joint is easy to pull off when the pipeline is settled, and a gap is easy to form due to uneven heating during bonding to generate a leakage point, so that the requirements on the construction environment and the operation skill of a constructor are high. The electric hot melting belt is adopted for connection, and the electric hot melting belt cannot be completely adhered to the pipe due to deformation of the pipe end opening, so that the electric hot melting belt must be welded in a groove during construction, large earth excavation is needed, and the construction speed is low. The electric hot melting belt is connected, the stress structure is poor, and the welding seam of the pipe is long, so that the electric hot melting belt cannot adapt to laying in soft foundation or uneven settlement areas. The connection modes have the defects of easy leakage at the interface, poor reliability and high requirement on the construction environment.
There is a need for improvement.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a double-end socket type hollow structure wall winding pipe which is not easy to break, has good reliability and is not easy to leak; the invention also aims to provide a manufacturing method of the double-end socket type hollow structure wall winding pipe.
In order to realize the purpose, the following technical scheme is provided:
a double-end socket type hollow structure wall winding pipe comprises a pipe and sockets and spigots arranged at two ends of the pipe, wherein the pipe comprises a pipe wall formed by spirally wound hollow pipes and a glue melting layer adhered to the adjacent hollow pipes,
the inner side wall of the socket is provided with a first annular flange which extends inwards in the radial direction, the first annular flange is connected with the pipe wall of the end face of the socket end of the pipe in a sealing way, the first annular flange is provided with a first axial protruding part which extends towards the inner part of the pipe wall of the end face of the socket end of the pipe, the side wall of the molten glue layer and/or the hollow pipe which is exposed out of the end face of the socket end of the pipe is provided with an axial hole for the first axial protruding part to pass through, the axial hole is sealed with the first axial protruding part, the tail end of the first axial protruding part is provided with an anti-pulling-off part, and the anti-pulling-off,
the inner side wall of the socket is provided with a second annular flange which extends inwards in the radial direction, the second annular flange is connected with the pipe wall of the end face of the pipe socket in a sealing mode, the second annular flange is provided with a second axial protruding portion which extends towards the inside of the pipe wall of the end face of the pipe socket, the molten glue layer exposed out of the end face of the pipe socket and/or the side wall of the hollow pipe are provided with axial holes for the second axial protruding portion to penetrate through, the axial holes are connected with the second axial protruding portion in a sealing mode, the tail end of the second axial protruding portion is provided with an anti-pulling-off portion, and the anti-pulling-off portion is embedded into.
Optionally, the hollow tube is a square hollow tube.
Optionally, at least one reinforcing rib is arranged on the outer side wall of the socket.
Optionally, a rubber ring groove for mounting the annular rubber ring is formed in the outer side wall of the socket.
Optionally, the width of the rubber ring groove is greater than or equal to 20 mm.
Optionally, the number of the axial holes at the end face of the female end of the pipe is at least 3, and the number of the axial holes at the end face of the female end of the pipe is at least 3.
Optionally, the socket and the spigot are manufactured by an injection molding process.
The method for manufacturing the double-end socket type hollow structure wall winding pipe is characterized by comprising the following steps of:
(1) cutting the produced hollow structure wall pipe in a fixed length mode, and processing burrs at two ends of the pipe;
(2) respectively drilling axial holes on the pipe walls of the end surfaces of the two ends of the pipe;
(3) sequentially placing the pipe with the axial hole into a socket injection mold and a spigot injection mold for joint injection molding, wherein the melt in a molten state is respectively overlapped with the surface of the outer side wall of the pipe, is welded with the pipe wall of the end face of the pipe, fills the gap of the hollow structure part of the end face of the pipe, and flows into the cavity of the hollow pipe through the axial hole to form an anti-pull-out part;
(4) and (4) processing the flash after injection molding.
After adopting the structure, compared with the prior art, the invention has the advantages that: according to the double-end socket type hollow structure wall winding pipe, the anti-pull-out structure is arranged between the pipe fitting (or the faucet) and the pipe, so that the pull-out resistance of the joint is greatly improved, the connection is firm, and the reliability is good; the socket (or the spigot) and the hollow cavities at the two ends of the pipe can form good sealing to prevent water from flowing in the hollow structure of the pipe, namely, the inner wall and the outer wall of the pipe really realize double-layer water insulation, and even if a single layer is broken due to backfilling or other reasons, water leakage cannot occur; the double-end socket type structure is suitable for manufacturing the joints of pipes of any grade and switching, connecting and installing pipes of different grades; the double-end structure effectively avoids water leakage caused by the unevenness of the outer wall (particularly the glue melting part) of the pipe wound by the hollow structure wall; the pipe is flexibly connected by the rubber ring when being installed, and compared with other rigidly connected interfaces, the interface has better anti-settling performance, and the interface is not loosened and not easy to break when the ground shakes; the double-end socket type structure can be quickly connected on the construction site, and the requirement on the construction environment is not high.
Drawings
FIG. 1 is a longitudinal sectional view of a double-ended socket hollow structural wall-wound pipe of the present invention;
FIG. 2 is a longitudinal sectional view of the pipe material of the double-ended socket hollow structural wall wrap pipe of the present invention;
FIG. 3 is a longitudinal sectional view of the pipe shown in FIG. 2 after axial holes are drilled in the end faces of the two ends;
fig. 4 is a socket mold for manufacturing the double-ended socket type hollow structure wall-wound pipe of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
In a first embodiment, referring to fig. 1 to 3, the socket type hollow structure wall winding pipe provided by the present invention includes a pipe 1, and a socket 2 and a spigot 3 which are arranged at two ends of the pipe 1, where the pipe 1 includes a pipe wall 10 formed by spirally wound hollow pipes 11 and a melt adhesive layer 12 bonded to the adjacent hollow pipes 11, the socket 2 and the spigot 3 are both cylindrical, the socket 2 is sleeved outside the socket end of the pipe 1, and the spigot 3 is sleeved outside the spigot end of the pipe 1. The inner side wall of the socket 2 is provided with a first annular flange 20 extending radially inwards, the first annular flange 20 is connected with the pipe wall 10 of the end face of the socket end of the pipe, the first annular flange 20 is provided with a first axial protruding part 200 extending towards the inner part of the pipe wall 10 of the end face of the socket end of the pipe 1, the side wall of the glue melting layer 12 exposed out of the end face of the socket end of the pipe 1 and/or the hollow pipe 11 is provided with axial holes 1100 for the first axial protruding part 200 to pass through, the number of the axial holes 1100 of the end face of the socket end of the pipe 1 is at least 3, the tail end of the first axial protruding part 200 is provided with an anti-pulling-off part 9, and the anti-pulling-off part 9 is embedded into the cavity 110.
The inner side wall of the socket 3 is provided with a second annular flange 30 extending radially inwards, the second annular flange 30 is connected with the pipe wall 10 of the end face of the pipe socket, the second annular flange 30 is provided with a second axial protruding part 300 extending towards the inside of the pipe wall 10 of the end face of the pipe socket, the side wall of the molten adhesive layer 12 exposed out of the end face of the pipe socket 13 and/or the hollow pipe 11 is provided with axial holes 1100 for the second axial protruding part 300 to pass through, the number of the axial holes 1100 of the end face of the pipe socket 13 is at least 3, the tail end of the second axial protruding part 300 is provided with an anti-pulling-off part 9, and the anti-pulling-off part 9 is embedded into the cavity 110 of the hollow pipe 11.
The hollow pipe 11 is a square hollow pipe.
The socket 2 and the spigot 3 are manufactured by an injection molding process.
And a plurality of reinforcing ribs are arranged on the outer side wall of the socket 2.
And a rubber ring groove 31 for mounting an annular rubber ring is arranged on the outer side wall of the socket 3. The width of the rubber ring groove is greater than or equal to 20 mm.
The manufacturing method of the double-end socket type hollow structure wall winding pipe comprises the following steps:
1. cutting the produced hollow structure wall pipe 1 at a fixed length (flat cutting), and processing burrs at two ends of the pipe 1;
2. respectively drilling axial holes 1100 in the pipe wall 10 of the end faces of the two ends of the pipe 1, wherein the number of the axial holes 1100 is at least 3, and the number of the axial holes can be increased in a place with a solid wall (with a plane and without a cavity) of the pipe wall;
3. sequentially placing the pipe 1 with the axial hole into a socket injection mold and a spigot injection mold for joint injection molding, wherein the melt in a molten state is respectively lapped with the surface of the outer side wall of the pipe 1, is welded with the pipe wall 10 of the end face of the pipe, fills the gap of the hollow structure part of the end face of the pipe, and flows into the cavity 110 of the hollow pipe through the axial hole 1100 to form the pull-out prevention part 9;
4. and (4) processing the flash after injection molding. The connecting position of the first piece longitudinal cutting joint and the pipe is observed, the forming condition of the axial protruding part and the anti-pulling-off part 9 is observed, the anti-pulling-off part 9 which overflows is required to be larger than the axial hole 1100, and the injection molding process is determined to carry out batch production.
The injection molding process of the socket and the spigot will be briefly described below by taking the socket injection mold as an example.
Referring to fig. 4, the bell mouth mold for the socket type hollow structure wall winding pipe adopted by the invention comprises a core mold 4, a core mold guide sleeve 8, an outer mold 5 and an outer mold material blocking ring 7 sleeved on the inner side of the outer mold 5, wherein the core mold guide sleeve 8 is connected with the core mold 4 into a whole through a connecting bolt, and a mold cavity 6 in the shape of a bell mouth is formed among the core mold 4, the core mold guide sleeve 8, the outer mold 5, the outer mold material blocking ring 7 and the hollow wall winding pipe 1. The outer mold 5 is provided with at least one injection port (not shown) which is in communication with the mold cavity 6.
The outer diameter of the core mold guide sleeve 8 is matched with the inner diameter of the hollow wall winding pipe 1, and the core mold guide sleeve 8 is inserted into the orifice of the hollow wall winding pipe 1. The inner diameter of one end of the outer mold material blocking ring 7 is matched with the outer diameter of the hollow wall winding pipe 1; the outer mold material blocking ring 7 limits the material inserted into the hollow wall winding pipe 1.
Before injection molding, the core mold guide sleeve 8 is sleeved into the hollow wall winding pipe 1, and two halves of the outer mold 5 are tightly closed; injecting the melt material melted by the extruder into the die cavity 6 through the injection molding port, uniformly and gradually flattening the material in the specially designed die cavity 6, then filling the material in the die cavity 6 in a surrounding manner, cooling and demolding to form a bell mouth, and finally producing the bell mouth of the hollow structure wall winding pipe.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (8)
1. A double-end socket type hollow structure wall winding pipe comprises a pipe and sockets and spigots arranged at two ends of the pipe, wherein the pipe comprises a pipe wall formed by spirally wound hollow pipes and a glue melting layer adhered to the adjacent hollow pipes,
the inner side wall of the socket is provided with a first annular flange which extends inwards in the radial direction, the first annular flange is connected with the pipe wall of the end face of the socket end of the pipe in a sealing way, the first annular flange is provided with a first axial protruding part which extends towards the inner part of the pipe wall of the end face of the socket end of the pipe, the side wall of the molten glue layer and/or the hollow pipe which is exposed out of the end face of the socket end of the pipe is provided with an axial hole for the first axial protruding part to pass through, the axial hole is sealed with the first axial protruding part, the tail end of the first axial protruding part is provided with an anti-pulling-off part, and the anti-pulling-off,
the inner side wall of the socket is provided with a second annular flange which extends inwards in the radial direction, the second annular flange is connected with the pipe wall of the end face of the pipe socket in a sealing mode, the second annular flange is provided with a second axial protruding portion which extends towards the inside of the pipe wall of the end face of the pipe socket, the molten glue layer exposed out of the end face of the pipe socket and/or the side wall of the hollow pipe are provided with axial holes for the second axial protruding portion to penetrate through, the axial holes are connected with the second axial protruding portion in a sealing mode, the tail end of the second axial protruding portion is provided with an anti-pulling-off portion, and the anti-pulling-off portion is embedded into.
2. The double ended female, hollow, structural, wall wound pipe of claim 1, wherein said hollow pipe is a square hollow pipe.
3. The double-ended female socket hollow structural wall-wound pipe of claim 1, wherein at least one reinforcing rib is provided on an outer sidewall of said socket.
4. The double-ended female socket hollow structural wall wound pipe of claim 1, wherein an outer sidewall of said socket is provided with a rubber ring groove for mounting an annular rubber ring.
5. The double-ended female socket hollow structural wall wound pipe of claim 4, wherein the width of said rubber ring groove is greater than or equal to 20 mm.
6. The double-ended female socket hollow structural wall-wound pipe of claim 1, wherein the number of said axial holes in the female end face of the pipe is at least 3 and the number of said axial holes in the female end face of the pipe is at least 3.
7. The double ended female socket hollow structural wall wound pipe of any one of claims 1-6, wherein said socket and spigot are made by an injection molding process.
8. A method of manufacturing the double-ended female hollow structural wall wound pipe of any one of claims 1 to 7, comprising the steps of:
(1) cutting the produced hollow structure wall pipe in a fixed length mode, and processing burrs at two ends of the pipe;
(2) respectively drilling axial holes on the pipe walls of the end surfaces of the two ends of the pipe;
(3) sequentially placing the pipe with the axial hole into a socket injection mold and a spigot injection mold for joint injection molding, wherein the melt in a molten state is respectively overlapped with the surface of the outer side wall of the pipe, is welded with the pipe wall of the end face of the pipe, fills the gap of the hollow structure part of the end face of the pipe, and flows into the cavity of the hollow pipe through the axial hole to form an anti-pull-out part;
(4) and (4) processing the flash after injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910921936.0A CN110608341A (en) | 2019-09-26 | 2019-09-26 | Double-end socket type hollow structure wall winding pipe and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910921936.0A CN110608341A (en) | 2019-09-26 | 2019-09-26 | Double-end socket type hollow structure wall winding pipe and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110608341A true CN110608341A (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910921936.0A Pending CN110608341A (en) | 2019-09-26 | 2019-09-26 | Double-end socket type hollow structure wall winding pipe and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110608341A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110978474A (en) * | 2020-02-28 | 2020-04-10 | 潍坊东方钢管有限公司 | Plastic forming profiling synchronous winding device for bell and spigot pipe |
| CN113404937A (en) * | 2021-05-27 | 2021-09-17 | 莆田市滨渡商贸有限公司 | Cross-linked polyethylene composite double-wall winding pipe |
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| CN202132620U (en) * | 2011-07-04 | 2012-02-01 | 鹤山联塑实业发展有限公司 | High-density polythene reinforced hollow wall winding pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110978474A (en) * | 2020-02-28 | 2020-04-10 | 潍坊东方钢管有限公司 | Plastic forming profiling synchronous winding device for bell and spigot pipe |
| CN113404937A (en) * | 2021-05-27 | 2021-09-17 | 莆田市滨渡商贸有限公司 | Cross-linked polyethylene composite double-wall winding pipe |
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Address after: 510800 No.8, Xixiu Road, Maxi village, Xiuquan street, Huadu District, Guangzhou City, Guangdong Province Applicant after: Ad pipeline (Guangdong) Co.,Ltd. Address before: 511810 East 1, Dongxiu Road, Xiuquan street, Huadu District, Guangzhou, Guangdong Applicant before: GUANGDONG YONGGAO PLASTIC INDUSTRY DEVELOPMENT Co.,Ltd. |
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