CN110906065A - Outer polygonal reinforced corrugated pipe and forming process thereof - Google Patents
Outer polygonal reinforced corrugated pipe and forming process thereof Download PDFInfo
- Publication number
- CN110906065A CN110906065A CN201911400149.8A CN201911400149A CN110906065A CN 110906065 A CN110906065 A CN 110906065A CN 201911400149 A CN201911400149 A CN 201911400149A CN 110906065 A CN110906065 A CN 110906065A
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- pipe
- circular
- polygonal
- wall
- corrugated pipe
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- 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
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/18—Pleated or corrugated hoses
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a forming process of an outer polygonal reinforced corrugated pipe, which comprises the following steps: extruding the pipe body material in a molten state from a die head by an extruder, and feeding the pipe body material into a corrugated pipe forming die; the annular pipe is formed through a corrugated pipe forming die, a plurality of polygonal annular bulges are formed on the outer wall of the annular pipe through more than three continuous polygonal die modules, and the annular bulges or the smooth outer wall is formed on the outer wall of at least one end of the annular pipe with the polygonal annular bulges through the circular die module positioned at least one end of each continuous polygonal die module; outputting and cooling the continuous pipe formed by the corrugated pipe forming die; after the pipe is cooled, cutting the pipe at the middle part provided with the circular ring bulge or the smooth outer wall to form a pipe unit; the outer polygonal reinforced corrugated pipe is obtained according to the forming process of the outer polygonal reinforced corrugated pipe. The invention has the advantages of high ring rigidity and convenient pipeline connection.
Description
Technical Field
The invention relates to the technical field of plastic pipelines, in particular to an outer polygonal reinforced corrugated pipe and a forming process thereof.
Background
The double-wall plastic corrugated pipe has an outer wall with an annular structure and a smooth cylindrical inner wall, and is widely applied to buried drainage pipelines and the like due to excellent performance of the double-wall plastic corrugated pipe. The double-wall corrugated pipe is developed and developed successfully in Germany in the beginning of the 80 s, and the popularization and application of the double-wall corrugated pipe are in an ascending situation after more than ten years of development and improvement, but due to the structural characteristics of the pipe, namely the circular shape, the double-wall corrugated pipe has the problems of difficult installation, potential safety hazard and the like in the aspects of installation and use durability.
In order to solve the above problems, patent nos.: CN201720489818.3 proposes a double-wall corrugated pipe with octagonal outer and inner walls and cylindrical inner wall, which changes the outer wall of the conventional annular structure into a polygonal structure to increase the contact area between the outer surface of the pipeline and the ground, so as to solve the above existing problems.
However, according to the double-wall corrugated pipe with the outer octagon and the inner circle disclosed in the patent document, the pipes are difficult to be connected with each other due to the structure of the outer octagon, and the outer octagon is easy to crack at the connection part of the sides during the expansion process, so that the pipes cannot be connected with each other in the conventional way of pipe orifice expansion due to the structure of the outer octagon and the inner circle.
Disclosure of Invention
The invention provides an outer polygonal reinforced corrugated pipe with high ring stiffness and convenient pipeline connection and a forming process thereof.
In order to achieve the purpose, the forming process of the outer polygonal reinforced corrugated pipe is characterized by comprising the following steps of: the method comprises the following steps:
1) extruding the pipe body material in a molten state from a die head by an extruder, and enabling the pipe body material extruded from the die head to enter a corrugated pipe forming die in the form of a circular pipe;
2) the annular pipe is formed through a corrugated pipe forming die, when the annular pipe is formed in the corrugated pipe forming die, a plurality of polygonal annular bulges are formed on the outer wall of the annular pipe through more than three continuous polygonal die modules, and the annular bulges or the smooth outer wall is formed on the outer wall of at least one end of the annular pipe with the polygonal annular bulges through the circular die module positioned at least one end of the continuous polygonal die modules;
3) outputting and cooling the continuous pipe formed by the corrugated pipe forming die; 4) after the pipe is cooled, the pipe is cut off in the middle of the outer wall provided with the circular ring bulge or the smooth outer wall to form a pipe unit, one end of the pipe unit is used as a socket, and the other end of the pipe unit forms a socket through a subsequent process, so that the pipe unit forms an outer polygonal reinforced corrugated pipe by a pipe body with polygonal annular bulges, the socket and the socket.
The outer polygonal reinforced corrugated pipe obtained according to the forming process of the outer polygonal reinforced corrugated pipe comprises a pipe body, a socket and a socket, wherein the pipe body comprises a body and a plurality of polygonal annular protrusions arranged outside the body, the cross section of the body is in a ring shape, the socket is located at one end of the pipe body, and the socket is located at the other end of the socket.
In the process, the molten pipe body material is extruded from the die head through the extruder, and enters the corrugated pipe forming die in an annular pipe shape; the outer wall of the circular tube is provided with a polygonal annular bulge formed by a polygonal mould module; forming a circular convex or smooth outer wall on the outer wall of the circular pipe by arranging the die modules; cooling the pipe body, cutting the pipe material at the middle part provided with the circular ring bulge or the smooth outer wall to form a pipe material unit, arranging and cutting the pipe material unit according to a mould module of a corrugated pipe forming mould, and then forming a socket through a subsequent process to produce the outer polygonal reinforced corrugated pipe consisting of the pipe body with the polygonal bulge, the socket and the socket. In the invention, the circular ring bulges or smooth outer walls are formed at two ends with the polygonal ring bulges by utilizing the corrugated pipe forming die, and the sockets are formed by utilizing the circular ring bulges or the smooth outer walls, so that the two outer polygonal reinforced corrugated pipes can be conveniently spliced and connected in the radial direction without position limitation, thereby not only solving the problem that the polygonal ring bulges are difficult to be spliced and connected in the prior art, but also solving the technical problem that the outer polygonal reinforced corrugated pipe has poor rigidity.
Further, step 2) still includes through the partly utilization vacuum adsorption of circular mould module and will have the bellmouth that the bellied annular tubular product of annular arch or smooth outer wall shaping internal diameter is greater than the annular tubular product internal diameter near the one end of the bellied annular tubular product of shaping polygon annular, above setting, just shaped the bellmouth before the shaping tubular product unit, can use through cutting off, consequently, has reduced technology process, and the cost is reduced has improved efficiency.
Further, the circular tube provided with the circular bulge or the smooth outer wall at the other end of the tube unit is expanded through an expansion die to form a socket.
Further, the circular mold module is a circular mold module with more than one circular groove on the inner side surface. Thus, the circular convex ring is convenient to form.
Furthermore, the circular mould module is a circular mould module with a smooth inner side surface. This facilitates the formation of a smooth outer wall.
Further, the annular protrusions are equally spaced.
Further, the polygonal annular protrusions are equally spaced.
Drawings
Fig. 1 is a schematic structural view of an outer polygonal reinforced corrugated pipe according to the present invention.
Fig. 2 is a schematic front view of an outer polygonal reinforced corrugated pipe according to the present invention.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is a sectional view taken along line B-B in fig. 2.
Fig. 5 is a cross-sectional view taken along line C-C of fig. 2.
Fig. 6 is a cross-sectional view taken along line D-D of fig. 2.
Fig. 7 is a schematic diagram of another embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-6, a process for forming an outer polygonal reinforced corrugated pipe comprises the following steps:
1) the extruder extrudes the pipe material in a molten state from the die head, and the pipe material extruded from the die head enters the corrugated pipe forming die in the shape of a circular pipe. The die head is circular, so that a circular pipe can be formed.
2) The ring tubular product passes through bellows forming die shaping, and when the ring tubular product was shaping in bellows forming die, it has a plurality of polygon annular protruding 2 to make the shaping of ring tubular product outer wall through the continuous polygon mould module more than three, and the circular mould module through being located the at least one end of continuous polygon mould module makes the shaping of the at least one end outer wall that has the bellied ring tubular product of polygon annular have ring protruding 3 or smooth outer wall.
3) And outputting and cooling the continuous pipe formed by the corrugated pipe forming die.
4) After the pipe is cooled, the pipe is cut off in the middle of the outer wall provided with the circular ring bulge or the smooth outer wall to form a pipe unit, one end of the pipe unit is used as a socket, and the other end of the pipe unit forms a socket through a subsequent process, so that the pipe unit forms an outer polygonal reinforced corrugated pipe by a pipe body with polygonal annular bulges, the socket and the socket.
The outer polygonal reinforced corrugated pipe obtained according to the forming process of the outer polygonal reinforced corrugated pipe comprises a pipe body 10, a socket 20 and a socket 30, wherein the pipe body 10 comprises a body 1 and a plurality of polygonal annular protrusions 2 arranged outside the body, the cross section of the body 1 is circular, in the embodiment, the polygonal annular protrusions 2 are regular polygons larger than three sides, and the socket 20 is located at one end of the body 1; the socket 30 is located at the other end of the body 1, and the outer wall of the socket 30 may be smooth wall, as shown in fig. 7, or may be provided with a circular protrusion, and the cross section of the socket is circular, so that the socket 20 can be inserted into the socket 30 conveniently, and the socket can be formed conveniently.
In the process, the molten pipe body material is extruded from the die head through the extruder, and enters the corrugated pipe forming die in an annular pipe shape; the outer wall of the circular tube is provided with a polygonal annular bulge formed by a polygonal mould module; forming a circular convex or smooth outer wall on the outer wall of the circular pipe by arranging the die modules; cooling the pipe body, cutting the pipe material at the middle part provided with the circular ring bulge or the smooth outer wall to form a pipe material unit, arranging and cutting the pipe material unit according to a mould module of a corrugated pipe forming mould, and then forming a socket through a subsequent process to produce the outer polygonal reinforced corrugated pipe consisting of the pipe body with the polygonal ring bulge, the socket and the socket. In the invention, the circular ring bulges 3 or the smooth outer walls are formed at the two ends with the polygonal ring bulges 2 by utilizing the corrugated pipe forming die, and the sockets are formed by utilizing the circular ring bulges 3 or the smooth outer walls, so that the two outer polygonal reinforced corrugated pipes can be conveniently connected in an inserting way without position limitation in the radial direction, thereby not only solving the problem that the polygonal ring bulges are difficult to butt-joint and insert in the prior art, but also solving the technical problem that the outer polygonal reinforced corrugated pipe ring has poor rigidity. Compared with the existing pipe structure with the circular section and two ends with the sockets and the sockets, the invention provides the structure with the body provided with the polygonal annular bulge and the sockets formed at the two ends.
Step 2) still include through the partial vacuum adsorption of circular mould module and will have the annular protruding 3 or the one end of the ring tubular product of smooth outer wall to become the bellmouth that the internal diameter is greater than the ring tubular product internal diameter near the annular tubular product that the shaping has polygon annular protruding 2, above setting, just the bellmouth has been shaped before the shaping tubular product unit, can use through cutting off, consequently, has reduced technology process, and the cost is reduced has improved efficiency.
And forming the socket 30 by the ring pipe with the ring bulge 3 or the smooth outer wall at the other end of the pipe unit through subsequent processes such as expansion of an expansion die and the like.
Claims (10)
1. A forming process of an outer polygonal reinforced corrugated pipe is characterized by comprising the following steps: the method comprises the following steps:
1) extruding the pipe body material in a molten state from a die head by an extruder, and enabling the pipe body material extruded from the die head to enter a corrugated pipe forming die in the form of a circular pipe;
2) the annular pipe is formed through a corrugated pipe forming die, when the annular pipe is formed in the corrugated pipe forming die, a plurality of polygonal annular bulges are formed on the outer wall of the annular pipe through more than three continuous polygonal die modules, and the annular bulges or the smooth outer wall is formed on the outer wall of at least one end of the annular pipe with the polygonal annular bulges through the circular die module positioned at least one end of the continuous polygonal die modules;
3) outputting and cooling the continuous pipe formed by the corrugated pipe forming die;
4) after the pipe is cooled, the pipe is cut off in the middle of the outer wall provided with the circular ring bulge or the smooth outer wall to form a pipe unit, one end of the pipe unit is used as a socket, and the other end of the pipe unit forms a socket through a subsequent process, so that the pipe unit forms an outer polygonal reinforced corrugated pipe by a pipe body with polygonal annular bulges, the socket and the socket.
2. The forming process of the external polygonal reinforced corrugated pipe as claimed in claim 1, wherein: and 2) forming the circular pipe with the circular bulge or the smooth outer wall into a socket with the inner diameter larger than that of the circular pipe by utilizing vacuum adsorption at one end, close to the circular pipe with the polygonal circular bulge formed, of a part of the circular mould module.
3. The forming process of the external polygonal reinforced corrugated pipe as claimed in claim 1, wherein: and expanding the circular pipe provided with the circular ring bulge or the smooth outer wall at the other end of the pipe unit through an expansion die to form a bell mouth.
4. The process of claim 1, wherein: the circular mould module is a circular mould module with more than one circular groove on the inner side surface.
5. The forming process of the external polygonal reinforced corrugated pipe as claimed in claim 1, wherein: the circular mould module is a circular mould module with a smooth inner side surface.
6. The outer polygonal reinforced corrugated pipe obtained by the forming process of the outer polygonal reinforced corrugated pipe according to claim 1, which comprises a pipe body, a socket and a socket, and is characterized in that: the body includes the body and establishes a plurality of polygon ring archs outside this body, and the cross section of body is the ring shape, and the socket is located the one end of body, and the bellmouth is located the other end of socket.
7. An external polygonal reinforced corrugated pipe according to claim 6 wherein: one end of the circular pipe with the polygonal annular bulge or the smooth outer wall is adsorbed by vacuum through one part of the circular mould module to form the circular pipe with the annular bulge or the smooth outer wall into a socket with the inner diameter larger than that of the circular pipe.
8. An external polygonal reinforced corrugated pipe according to claim 6 wherein: and expanding the circular pipe provided with the circular ring bulge or the smooth outer wall at the other end of the pipe unit through an expansion die to form a bell mouth.
9. An external polygonal reinforced corrugated pipe according to claim 6 wherein: the circular ring bulges are separated at equal intervals.
10. An outer polygonal reinforced pipe according to claim 6, wherein: the polygonal annular bulges are separated at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911400149.8A CN110906065A (en) | 2019-12-30 | 2019-12-30 | Outer polygonal reinforced corrugated pipe and forming process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911400149.8A CN110906065A (en) | 2019-12-30 | 2019-12-30 | Outer polygonal reinforced corrugated pipe and forming process thereof |
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| CN110906065A true CN110906065A (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911400149.8A Pending CN110906065A (en) | 2019-12-30 | 2019-12-30 | Outer polygonal reinforced corrugated pipe and forming process thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762248A (en) * | 2021-01-27 | 2021-05-07 | 广东永高塑业发展有限公司 | Outer polygonal wave wheel-shaped reinforced composite pipe |
| CN112762247A (en) * | 2021-01-27 | 2021-05-07 | 广东永高塑业发展有限公司 | Outer impeller-shaped reinforced composite pipe |
| CN114889279A (en) * | 2022-06-08 | 2022-08-12 | 安徽源锂高新材料有限公司 | Reinforced modified HDPE-IW polygonal pipe and preparation method thereof |
| CN114932670A (en) * | 2022-05-21 | 2022-08-23 | 临海伟星新型建材有限公司 | Preparation method of novel electrical sheath pipeline |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112762248A (en) * | 2021-01-27 | 2021-05-07 | 广东永高塑业发展有限公司 | Outer polygonal wave wheel-shaped reinforced composite pipe |
| CN112762247A (en) * | 2021-01-27 | 2021-05-07 | 广东永高塑业发展有限公司 | Outer impeller-shaped reinforced composite pipe |
| CN114932670A (en) * | 2022-05-21 | 2022-08-23 | 临海伟星新型建材有限公司 | Preparation method of novel electrical sheath pipeline |
| CN114889279A (en) * | 2022-06-08 | 2022-08-12 | 安徽源锂高新材料有限公司 | Reinforced modified HDPE-IW polygonal pipe and preparation method thereof |
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