CN-118024642-B - Production process and production line of double-wall corrugated pipe

Abstract

The invention belongs to the technical field of corrugated pipes, and particularly relates to a production process of a double-wall corrugated pipe, which comprises the following steps of S1, selecting a proper plastic material, polishing, then stirring, S2, putting the plastic material processed in S1 into an extrusion device, melting the plastic material through high temperature and pressure by the extrusion device, extruding a pipeline from an extrusion hole of a die, S3, connecting the pipeline into a first supporting structure arranged on a mounting cabinet, then sending the pipeline into a corrugated forming device arranged on the mounting cabinet, and removing the corrugated pipe from a second supporting structure after the corrugated forming device processes the corrugated pipe.

Inventors

• YAN BINGZHANG
• HUANG ZHENYU
• Tong Denghao

Assignees

• 浙江中财管道衍生产品有限公司

Dates

Publication Date

20260508

Application Date

20240108

Claims (4)

1. 1. A process for producing a double-walled corrugated pipe, comprising: S1, firstly, selecting a proper plastic material, polishing, and then stirring; S2, putting the plastic material processed in the step S1 into an extrusion device, melting the plastic material by the extrusion device through high temperature and pressure, and extruding a pipeline from an extrusion hole of a die; S3, connecting the pipeline into a first supporting structure arranged on the installation cabinet (1), then conveying the pipeline into a corrugated forming device arranged on the installation cabinet (1), and removing the corrugated pipe from a second supporting structure after the corrugated forming device processes the corrugated pipe from the pipeline; the supporting structure comprises a supporting plate (2) which is arranged at the top end of the installation cabinet (1), and an installation hole (3) is arranged on the supporting plate (2); the mounting groove (4) is arranged at the bottom end of the mounting hole (3); the fixed ends of the four first hydraulic cylinders (5), the fixed ends of the two first hydraulic cylinders (5) are arranged on two sides of the top end of the supporting plate (2) and the output ends penetrate into the mounting holes (3), and the fixed ends of the other two first hydraulic cylinders (5) are arranged on two sides of the inner wall of the mounting groove (4) and the output ends extend into the mounting holes (3); The four connecting plates (6) are respectively arranged at the output ends of the four first hydraulic cylinders (5); And two support shafts (7) which are respectively and rotatably connected to the two corresponding connecting plates (6); wherein the two support shafts (7) are arranged in parallel, and the two support shafts (7) are mutually close to or separated from each other through the first hydraulic cylinder (5); The ripple forming device comprises a fixed block (8) which is arranged at the top end of the installation cabinet (1) and is positioned at one side of the supporting structure, which is away from the extrusion device; The side wall of the hollow cylindrical block is arranged at the top end of the fixed block (8); One end of the stable forming mechanism is rotationally connected to the opening of the hollow cylindrical block facing to one end of the supporting structure, and the other end of the stable forming mechanism is rotationally connected with one side of the supporting plate (2) facing to the hollow cylindrical block; the ripple forming mechanism is rotationally connected to one end of the hollow cylindrical block, which is away from the stable forming mechanism; The stable forming mechanism is used for extruding the outside of the pipeline, and the ripple forming mechanism is used for forming ripples on the pipeline; The stabilizing and forming mechanism comprises a limiting ring block (9), wherein one end of the limiting ring block is rotatably connected to the inner wall of one end of the hollow cylindrical block, which faces towards the first supporting structure, and the other end of the limiting ring block extends away from the limiting ring block (9), and a plurality of strip-shaped limiting holes (10) which are arranged in the direction of the central shaft of the limiting ring block (9) are formed in the end wall of the limiting ring block (9); The fixed end of the first belt transmission structure (30) is arranged in the installation cabinet (1), and the transmission end penetrates through the installation frame and is connected to the side wall of the limiting ring block (9); the driving structure is respectively connected to the limiting ring block (9) and the supporting plate (2) in a rotating way; The device comprises a driving structure, a plurality of connecting structures, a plurality of extrusion rollers (11) and a plurality of connecting structures, wherein one end of each connecting structure penetrates through a strip-shaped limiting hole (10) and is connected to the driving structure, and the other end of each connecting structure is respectively arranged on one side of a limiting ring block (9) deviating from the driving ring block (15) in a circumferential direction; The driving structure is used for driving the connecting structure to move on the strip-shaped limiting hole (10) so as to enable the extrusion rollers (11) to be close to or separated from each other, the extrusion rollers (11) are arc-shaped, and the extrusion rollers (11) are combined into a round shape after being close to each other; The connecting structure comprises a connecting rod (12), one end of the connecting rod penetrates through the strip-shaped limiting hole (10) and is connected to the driving structure, and the other end of the connecting rod is positioned at one end of the limiting ring block (9) deviating from the driving structure; the connecting block (13) is detachably connected to the connecting rod (12); One end of each L-shaped plate (14) is connected to two sides of the connecting block (13), and the other end extends towards the central axis direction of the limiting ring block (9); wherein, a plurality of squeeze rollers (11) are respectively connected between the two L-shaped plates; The driving structure comprises a driving ring block (15) and a plurality of driving grooves (16) which are arranged in a shaft direction of the center of the driving ring block (15) are arranged on the end wall of the driving ring block (15) facing to one end of the limiting ring block (9), wherein the driving ring block is rotatably connected to one end of the limiting ring block (9) facing away from the hollow cylindrical block; One end of the supporting ring (17) is rotationally connected with one end of the driving ring block (15) deviating from the limiting ring block (9), and the other end of the supporting ring is rotationally connected with the supporting plate (2); the fixed end of the second belt transmission structure (18) is arranged in the installation cabinet (1), and the transmission end penetrates through the installation cabinet (1) and is connected with the side wall of the driving ring block (15); When the second belt transmission structure (18) drives the driving ring block (15) to rotate, the driving groove (16) drives the connecting rod (12) to move in the bar-shaped limiting hole (10).
2. 2. The process for producing a double-wall corrugated pipe according to claim 1, wherein the corrugated forming mechanism comprises: The rotating ring block (19) is rotationally connected to one end of the hollow cylindrical block, which is far away from the stable forming mechanism; the rotating disc (20) is fixedly connected to one end of the rotating ring block (19) which is away from the stable forming mechanism, and a through hole for a pipeline to pass through is formed in the end part of the rotating disc (20); the transmission teeth (21) are arranged on the outer side wall of the rotating disc (20); the driving motor (22), the fixed end is set up on the outer sidewall of the hollow cylinder block, the output end extends towards the drive tooth (21); the corrugated forming structure is arranged on one side of the rotating disc (20) away from the hollow cylindrical block; The driving gear (23) is used for driving the transmission gear (21) to rotate, so that the corrugated forming structure is driven to rotate.
3. 3. A process for producing a double-walled corrugated pipe according to claim 2, wherein the corrugated structure comprises: The device comprises a mounting ring block (24) arranged at one end of a rotating disc (20) deviating from the hollow cylindrical block, a plurality of second hydraulic cylinders (25), fixed ends respectively connected to the outer side wall of the mounting ring block (24), output ends respectively penetrating into the mounting ring block (24), and a plurality of ripple forming components respectively arranged at the output ends of the second hydraulic cylinders (25); wherein the second hydraulic cylinder (25) is used for driving the corrugated forming assemblies to be close to each other or separated from each other.
4. 4. A process for producing a double-walled corrugated pipe according to claim 3, wherein the corrugated forming assembly comprises: The mounting column (26) is connected with the output end of the second hydraulic cylinder (25) at one end and extends away from the second hydraulic cylinder (25) at the other end; the connecting column (28) is connected to one end of the threaded rod (27) which is away from the mounting column (26); And a forming wheel (29) rotatably connected to one end of the connecting post (28) facing away from the threaded rod (27); Wherein, the shaping wheel (29) is used for carrying out shaping ripple to the outer lateral wall of pipe body.

Description

Production process and production line of double-wall corrugated pipe Technical Field The invention relates to the technical field of corrugated pipes, in particular to a production process and a production line of a double-wall corrugated pipe. Background The high-density polyethylene double-wall corrugated pipe is a novel pipe with an annular structure outer wall and a smooth inner wall, and was first developed in Germany in the early 80 s. Over ten years of development and perfection, a single variety has evolved into a complete product line. At present, the production process and the use technology are mature. In the prior art, most of bellows production equipment is not used for supporting a pipe body when the corrugation is formed, so that the support cannot be stabilized when the corrugation is formed, and deviation occurs in the corrugation forming. Disclosure of Invention Aiming at the defects of the prior art, the invention aims to provide a production process and a production line of a double-wall corrugated pipe, so as to solve the problems. In view of this, the present invention provides a process for producing a double-wall corrugated pipe, comprising: S1, firstly, selecting a proper plastic material, polishing, and then stirring; s2, putting the plastic material processed in the step S1 into an extrusion device, melting the plastic material by the extrusion device through high temperature and pressure, and extruding a pipeline from an extrusion hole of a die; and S3, connecting the pipeline into a first supporting structure arranged on the installation cabinet, then conveying the pipeline into a corrugated forming device arranged on the installation cabinet, and removing the corrugated pipe from a second supporting structure after the corrugated forming device processes the pipeline into the corrugated pipe. Through adopting above-mentioned technical scheme, through the setting of S1, can make plastic material' S quality better and more even, through the setting of S2, can produce the pipeline, through the setting of S3, can make the pipeline obtain stable support in the ripple shaping to fashioned ripple is more accurate and stable. In the above technical solution, the support structure further includes: the support plate is arranged at the top end of the installation cabinet and is provided with an installation hole; the mounting groove is arranged at the bottom end of the mounting hole; The fixed ends of the four first hydraulic cylinders are arranged on two sides of the top end of the supporting plate, the output ends of the four first hydraulic cylinders penetrate into the mounting holes, and the fixed ends of the other two first hydraulic cylinders are arranged on two sides of the inner wall of the mounting groove, and the output ends of the other two first hydraulic cylinders extend into the mounting holes; the four connecting plates are respectively arranged at the output ends of the four first hydraulic cylinders; The two support shafts are respectively and rotatably connected with the two corresponding connecting plates; The two support shafts are arranged in parallel and are mutually close to or separated from each other through the first hydraulic cylinder. In this technical scheme, through the setting of mounting hole, can make the pipeline pass, can make first pneumatic cylinder obtain the installation through the setting of mounting groove, through the setting of first pneumatic cylinder, can make two connecting plates be close to each other or separate each other to reach two back shaft and be close to each other and separate, through the setting of connecting plate, can make the back shaft obtain the installation. In the above technical solution, the bellows molding device further includes: The fixed block is arranged at the top end of the installation cabinet and is positioned at one side of the supporting structure, which is away from the extrusion device; the side wall of the hollow cylindrical block is arranged at the top end of the fixed block; one end of the stable forming mechanism is rotationally connected to the opening of the hollow cylindrical block facing to one end of the supporting structure, and the other end of the stable forming mechanism is rotationally connected with one side of the supporting plate facing to the hollow cylindrical block; the ripple forming mechanism is rotationally connected to one end of the hollow cylindrical block, which is away from the stable forming mechanism; the stable forming mechanism is used for extruding the outer part of the pipeline, and the ripple forming mechanism is used for forming ripples on the pipeline. In this technical scheme, through the setting of fixed block, can make the cavity cylinder piece obtain the installation, through the setting of cavity cylinder piece, can make stable forming mechanism and ripple forming mechanism obtain the installation, thereby the pipeline is at first through stable forming mechanism