CN115447103A - Corrugated pipe extrusion protection device - Google Patents

Corrugated pipe extrusion protection device Download PDF

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Publication number
CN115447103A
CN115447103A CN202211070108.9A CN202211070108A CN115447103A CN 115447103 A CN115447103 A CN 115447103A CN 202211070108 A CN202211070108 A CN 202211070108A CN 115447103 A CN115447103 A CN 115447103A
Authority
CN
China
Prior art keywords
sleeve
extrusion
rubber
core
protection
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.)
Withdrawn
Application number
CN202211070108.9A
Other languages
Chinese (zh)
Inventor
苏文
覃栋业
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maanshan Feida Bellows Manufacturing Co ltd
Original Assignee
Maanshan Feida Bellows Manufacturing Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maanshan Feida Bellows Manufacturing Co ltd filed Critical Maanshan Feida Bellows Manufacturing Co ltd
Priority to CN202211070108.9A priority Critical patent/CN115447103A/en
Publication of CN115447103A publication Critical patent/CN115447103A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
    • B29C48/338—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location using a die with concentric parts, e.g. rings, cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—Heating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Joints Allowing Movement (AREA)

Abstract

The invention discloses a corrugated pipe extrusion protection device, which relates to the field of corrugated pipe production equipment and comprises an extrusion part, a protection part and a rotation part, wherein the extrusion part comprises an inner extrusion sleeve and an outer extrusion sleeve, the inner extrusion sleeve is sleeved in the outer extrusion sleeve and coaxially arranged with the outer extrusion sleeve, the protection part is arranged at the outer side of the outer extrusion part and is used for protecting the extrusion part, the rotation part comprises a rotation gas core and a protection device, the protection device is arranged at the tail end of the rotation gas core and is used for protecting a formed corrugated pipe, and the rotation gas core is coaxially arranged in the inner extrusion sleeve; the shock absorption device can effectively reduce the problem caused by the insecure combination of the inner and outer double-layer rubber materials of the double-wall corrugated pipe due to the vibration generated by the equipment in the rotating process of the heating sleeve.

Description

Corrugated pipe extrusion protection device
Technical Field
The invention relates to the field of corrugated pipe production equipment, in particular to a corrugated pipe extrusion protection device.
Background
In the production process of corrugated pipes, particularly double-wall corrugated pipes, because the length of the air core is longer and a double-layer extrusion sleeve is adopted to form a double-wall structure, extruded glue sometimes has inconsistent heat dissipation due to the double-layer structure, the temperature of the outer layer of glue is lower than that of the inner layer of glue or the temperatures of the two layers of glue are reduced too much, so that the quality of the finally formed corrugated pipe is not ideal, therefore, a heating component is required to be arranged in an extrusion part for maintaining enough forming temperature of glue materials sometimes, but the heating component is generally a metal heating pipe and is heated by a heating metal wire in the pipe, so that the position close to a heating wire is easier to obtain the temperature, the position of the heating wire is easy to cause heat accumulation, the glue materials are burnt, the quality of the produced corrugated pipes is also unqualified, if the metal heating pipe is required to be heated more uniformly, the heating pipe is required to be in a motion state such as rotation, but vibration generated in the rotation process is easy to cause the glue materials on the inner wall to be sprayed out to present an uneven structure, so that the combination of the double-wall structure has problems, and the quality of the corrugated pipes is unqualified.
Disclosure of Invention
The present invention is directed to a bellows extrusion protection device to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a protection device is extruded to bellows, includes extrusion portion, protection portion and rotation portion, extrusion portion extrudes the cover and extrudes the cover outward including interior, interior extrusion cover cup joints in outer extrusion cover and the two coaxial setting, the outside that protection portion installed extrusion portion outward is used for the protection to extrude the portion, rotation portion is including rotating gas core and protection device, protection device includes connector and damping device, the medial surface of conical surface connector is connected on rotating the gas core, the side of conical surface connector is connected on damping device, damping device installs and is used for reducing the vibration on rotating the gas core, it extrudes the cover in interior to rotate gas core coaxial arrangement.
Preferably, the outer side surface of the inner extrusion sleeve is provided with inner layer extrusion threads, the head of the inner extrusion sleeve is provided with an inner sleeve hanging table, the inner sleeve hanging table is provided with symmetrical inner layer glue inlet openings, and the inner layer glue inlet openings are communicated with the inner layer extrusion threads.
A bellows extrusion protection device according to claim, wherein: the outer screw thread of extruding on the lateral surface of outer extrusion cover, the head of extruding the cover outward is equipped with overcoat and hangs the platform, the overcoat is hung the outer gluey mouth of advancing that is equipped with the symmetry on the platform and outer gluey mouth intercommunication of advancing is extruded on the screw thread in the outer layer, the end of extruding the cover outward still is equipped with the toper and walks gluey face.
Preferably, the outer side of the inner sleeve hanging table of the inner extrusion sleeve is connected with an inner sleeve rubber feeding plate through a bolt, the outer side of the inner sleeve rubber feeding plate is connected with an outer sleeve rubber feeding plate through a bolt, an inner sleeve rubber feeding flow passage is arranged on the inner sleeve rubber feeding plate, and an outer sleeve rubber feeding flow passage is arranged on the outer sleeve rubber feeding plate.
Preferably, the protection part includes the cardboard, walks gum cover, gas core protective sheath, the cardboard is installed outside overcoat string platform, walk the gum cover and fix in the cardboard side and its terminal medial surface be equipped with the toper walk the inclined plane that the face is parallel of gluing, make the toper walk that the face department of gluing forms and walk the clearance of gluing, the side of walking the gum cover is equipped with the gas core protective sheath, the gas core protective sheath is isometric with the rotation gas core.
Preferably, the rotating air core comprises a through air blowing hole arranged in the center, the rotating air core is installed in the rubber plate sleeved with the inner sleeve through a bearing, and the tail part of the rotating air core is provided with a power gear set.
Preferably, the protection device comprises a conical surface connector, a heating sleeve, a rubber guiding sleeve and a damping device, wherein the inner side surface of the conical surface connector is connected to the rotary air core, the side surface of the conical surface connector is connected to the damping device, the side surface of the damping device is connected to the heating sleeve, the heating sleeve is rotatably arranged in the rubber guiding sleeve, and the end part of the rubber guiding sleeve is fixed at the tail end of the inner extrusion sleeve;
the damping device comprises a protective shell, a core disc, a damping spring and a buffering spring, one side face of the protective shell is connected to the conical face connecting head, the other side face of the protective shell is connected to the rubber guiding sleeve in a sealing mode, a plurality of grooves and separating bosses are arranged between the protective shell and the core disc, the damping spring is installed between every two adjacent separating bosses and located in the grooves, a plurality of grooves and limiting bosses are also arranged in the core disc, and the buffering spring is installed between the limiting bosses and located in the grooves.
Compared with the prior art, the invention has the beneficial effects that:
1. the heating sleeve can be driven to rotate by the arranged rotating gas core, so that the phenomenon that the corrugated pipe is unqualified due to the problems of uneven heating and heat accumulation is avoided;
2. the shock absorption device can effectively reduce the problem caused by the insecure combination of the inner and outer double-layer rubber materials of the double-wall corrugated pipe due to the vibration generated by the equipment in the rotating process of the heating sleeve.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 isbase:Sub>A sectional view taken along line A-A in FIG. 3;
FIG. 5 is a sectional view taken along line B-B in FIG. 3;
FIG. 6 is a schematic view of the shock absorbing device of the present invention.
In the figure: 1-an extrusion section; 11-inner extrusion sleeve; 111-inner layer extrusion threads; 112-inner sleeve hanging table; 113-inner layer glue inlet;
12-outer extrusion sleeve; 121-outer layer extrusion threads; 122-outer jacket hanging table; 123-an outer layer glue inlet; 124-conical glue-running surface;
13-sheathing a rubber plate in the inner sleeve; 14-sleeving a rubber plate outside; 15-inner sleeve glue feeding runner; 16-outer sleeve glue inlet flow channel;
2-a protection part; 21-cardboard; 22-a rubber sleeve is arranged; 23-an air core protective sleeve;
3-a rotating part; 31-rotating the gas core; 311-air blowing holes;
32-a protection device; 321-a conical surface connector; 322-a heating jacket; 323-lead the gum cover;
324-a shock absorbing device; 3241-protective case; 3242-core disc; 3243-damping spring; 3244-cushion spring; 3245-separating the boss; 3246-Limit boss.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides a protection device is extruded to bellows, includes extrusion portion 1, protection portion 2 and rotation portion 3, extrusion portion 1 extrudes cover 11 and extrudes cover 12 outward including interior, it cup joints and extrudes cover 12 in and the two coaxial setting outward to extrude cover 11 in interior, the outside that extrusion portion 12 was extruded outward to protection portion 2 installation is used for the protection to extrude portion 1, rotation portion 3 is including rotating gas core 31 and protection device 32, protection device 32 includes connector 321 and damping device 324, the medial surface of conical surface connector 321 is connected on rotating gas core 31, the side of conical surface connector 321 is connected on damping device 324, damping device 324 installs and is used for reducing the vibration on rotating gas core 31, rotate gas core 31 coaxial arrangement in extrusion portion 11.
In this embodiment, an inner layer extrusion thread 111 is arranged on the outer side surface of the inner extrusion sleeve 11, an inner sleeve hanging table 112 is arranged at the head of the inner extrusion sleeve 11, symmetrical inner layer glue inlets 113 are arranged on the inner sleeve hanging table 112, the inner layer glue inlets 113 are communicated with the inner layer extrusion thread 111, when glue is injected through the inner layer glue inlets 113, the glue can be spirally advanced through the inner layer extrusion thread 111, in this process, the molten glue can be turned and mixed, and the temperature of each part of the glue can be kept consistent.
In this embodiment, an outer layer extrusion thread 121 is arranged on the outer side surface of the outer extrusion sleeve 12, an outer layer hanging table 122 is arranged at the head of the outer extrusion sleeve 12, symmetrical outer layer glue inlets 123 are arranged on the outer layer hanging table 122, the outer layer glue inlets 123 are communicated with the outer layer extrusion thread 121, a tapered glue running surface 124 is further arranged at the tail end of the outer extrusion sleeve 12, after the outer layer glue inlets 123 extrude the rubber material out of the outer extrusion sleeve 12, the rubber material can be screwed forward through the outer layer extrusion thread 121, the molten rubber material can be turned over and mixed in the process, and the temperature of each part of the rubber material can be kept consistent.
In this embodiment, the outer side of the inner sleeve hanging table 112 of the inner extrusion sleeve 11 is connected with an inner sleeve rubber inlet plate 13 through a bolt, the outer side of the inner sleeve rubber inlet plate 13 is connected with an outer sleeve rubber inlet plate 14 through a bolt, the inner sleeve rubber inlet plate 13 is provided with an inner sleeve rubber inlet flow passage 15, the outer sleeve rubber inlet plate 14 is provided with an outer sleeve rubber inlet flow passage 16, and the inner extrusion sleeve 11 and the outer extrusion sleeve 12 are fixed through the fixation of the two rubber inlet plates, so that the initial positions of the rubber materials extruded by the inner extrusion sleeve 11 and the outer extrusion sleeve 12 are always unchanged, and the extrusion quality of the corrugated pipe is convenient to control.
In this embodiment, the protection portion 2 includes a clamping plate 21, a rubber walking sleeve 22, and an air core protection sleeve 23, the clamping plate 21 is installed outside the outer sheath hanging platform 122, the rubber walking sleeve 22 is fixed on the side surface of the clamping plate 21, and an inclined surface parallel to the tapered rubber walking surface 124 is arranged on the inner side surface of the tail end of the rubber walking sleeve 22, so that a rubber walking gap is formed at the tapered rubber walking surface 124, the air core protection sleeve 23 is arranged on the side surface of the rubber walking sleeve 22, the air core protection sleeve 23 is as long as the rotary air core 31, and the protection portion 2 mainly plays a role in protecting and guiding rubber to extrude.
In this embodiment, the rotating air core 31 includes a through air blowing hole 311 at the center, the rotating air core 31 is installed in the inner sleeve rubber plate 13 through a bearing, the rotating air core 31 is driven to rotate by a gear set arranged at the tail, the air blowing hole 311 of the air core 31 blows out high-pressure air, and the extruded rubber material is matched with an external forming mold (not shown in the figure) to form the inner and outer walls of the double-wall corrugated pipe in a blow molding manner.
In this embodiment, the protection device 32 includes a conical surface connector 321, a heating sleeve 322, a rubber guiding sleeve 323 and a damping device 324, an inner side surface of the conical surface connector 321 is connected to the rotary air core 31, a side surface of the conical surface connector 321 is connected to the damping device 324, a side surface of the damping device 324 is connected to the heating sleeve 322, the heating sleeve 322 is rotatably installed in the rubber guiding sleeve 323, an end portion of the rubber guiding sleeve 323 is fixed to a tail end of the inner extrusion sleeve 11, and the heating sleeve 322 is heated in a rotating process, so that the temperature distribution of the double-wall rubber material is more uniform;
the damping device 324 comprises a protective shell 3241, a core disc 3242, a damping spring 3243 and a damping spring 3244, one side surface of the protective shell 3241 is connected to the conical surface connector 321, the other side surface of the protective shell 3241 is connected to the rubber guide sleeve 323 in a sealing manner, a plurality of grooves and separating bosses 3245 are arranged between the protective shell 3241 and the core disc 3242, the damping spring 3243 is arranged between two adjacent separating bosses 3245 and positioned in the groove, a plurality of grooves and limiting bosses 3246 are also arranged in the core disc 3242, the damping spring 3244 is arranged between the limiting bosses 3246 and positioned in the groove, since the air core 31 can continuously blow high-pressure air to enable the injected rubber to be attached to an external forming mold, the air core 31 can vibrate when the air core passes through the air core, especially at the opening part of the air core 31, the air core 31 can vibrate due to air vibration as a blowing horn, and simultaneously since the air core 31 needs to drive the heating sleeve 322 to rotate, the air core 31 can vibrate, the damping spring 3243 can reduce the vibration of the high-pressure air fed back from the rotating hole 311, the heating core 31, the heating coil 3231 can easily drive the heating sleeve to rotate, and the rubber guide sleeve 322 to generate vibration, and the problem that the vibration of the heating coil 322 is easily caused by the heating coil 322, and the rubber guide sleeve 322 is reduced, and the vibration, and the rubber guide sleeve 322 is effectively caused by the vibration, and the rubber guide sleeve 322 is prevented from being generated when the rubber guide sleeve 322, and the rubber guide sleeve 322 is prevented from being generated by the heating coil.
The working principle is as follows: when the air core type glue injection molding machine is used, firstly, molten glue stock is injected onto the inner layer extrusion thread 111 and the outer layer extrusion thread 121 through the inner sleeve glue inlet flow passage 15 and the outer sleeve glue inlet flow passage 16, then the two parts of glue stock are respectively combined at the conical glue running surface 124 and continuously extruded outwards along the glue guiding sleeve 323, at the position, the glue stock is continuously heated by the rotary heating sleeve 322, and finally, the glue stock is discharged from a gap between the air core protective sleeve 23 and the opening of the rotary air core 31 and molded.
Based on the above, the heating sleeve can be driven to rotate by the arranged rotating gas core, so that the phenomenon that the corrugated pipe is unqualified in quality due to the problems of uneven heating and heat accumulation is avoided; the shock absorption device can effectively reduce the problem caused by the insecure combination of the inner and outer layers of rubber materials of the double-wall corrugated pipe due to the vibration generated by equipment in the rotating process of the heating sleeve.
It will be appreciated by those skilled in the art that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims (7)

1. The utility model provides a protection device is extruded to bellows which characterized in that: including extruding portion (1), protection portion (2) and rotation portion (3), extrude portion (1) including interior extrusion cover (11) and extrude cover (12) outward, interior extrusion cover (11) cup joint and extrude cover (12) in and the two coaxial setting outward, protection portion (2) are installed and are used for the protection to extrude portion (1) in the outside of extruding portion (12), rotation portion (3) is including rotating gas core (31) and protection device (32), protection device (32) are including connector (321) and damping device (324), the medial surface of conical surface connector (321) is connected on rotating gas core (31), the side connection of conical surface connector (321) is on damping device (324), damping device (324) are installed and are used for reducing the vibration on rotating gas core (31), rotate gas core (31) coaxial arrangement extrude in cover (11) in.
2. A bellows extrusion protector as claimed in claim 1, wherein: the outer side surface of the inner extrusion sleeve (11) is provided with inner layer extrusion threads (111), the head of the inner extrusion sleeve (11) is provided with an inner sleeve hanging table (112), the inner sleeve hanging table (112) is provided with symmetrical inner layer glue inlet openings (113), and the inner layer glue inlet openings (113) are communicated with the inner layer extrusion threads (111).
3. The bellows extrusion protector of claim 1, wherein: the outer side surface of the outer extrusion sleeve (12) is provided with an outer extrusion thread (121), the head of the outer extrusion sleeve (12) is provided with an outer sleeve hanging table (122), the outer sleeve hanging table (122) is provided with a symmetrical outer rubber inlet (123) and a symmetrical outer rubber inlet (123) communicated with the outer extrusion thread (121), and the tail end of the outer extrusion sleeve (12) is further provided with a conical rubber running surface (124).
4. A bellows extrusion protector as claimed in claim 1, wherein: the outer side of an inner sleeve hanging table (112) of the inner extrusion sleeve (11) is connected with an inner sleeve rubber inlet plate (13) through a bolt, the outer side of the inner sleeve rubber inlet plate (13) is connected with an outer sleeve rubber inlet plate (14) through a bolt, an inner sleeve rubber inlet flow passage (15) is formed in the inner sleeve rubber inlet plate (13), and an outer sleeve rubber inlet flow passage (16) is formed in the outer sleeve rubber inlet plate (14).
5. A bellows extrusion protector as claimed in claim 3, wherein: protection portion (2) include cardboard (21), walk gum cover (22), gas core protective sheath (23), cardboard (21) are installed outside overcoat string platform (122), it fixes in cardboard (21) side and its terminal medial surface is equipped with and walks the inclined plane that glues face (124) parallel with the toper to walk gum cover (22), makes the toper walk that gluey face (124) department forms and walks gluey clearance, the side of walking gum cover (22) is equipped with gas core protective sheath (23), gas core protective sheath (23) are isometric with rotation gas core (31).
6. The bellows extrusion protection device of claim 4, wherein: the rotating air core (31) comprises a through air blowing hole (311) arranged in the center, the rotating air core (31) is installed in the rubber plate (13) through a bearing, and a power gear set is arranged at the tail of the rotating air core (31).
7. The bellows extrusion protection device of claim 6, wherein: the protection device (32) comprises a conical surface connector (321), a heating sleeve (322), a rubber guide sleeve (323) and a damping device (324), wherein the inner side surface of the conical surface connector (321) is connected to the rotary air core (31), the side surface of the conical surface connector (321) is connected to the damping device (324), the side surface of the damping device (324) is connected to the heating sleeve (322), the heating sleeve (322) is rotatably installed in the rubber guide sleeve (323), and the end part of the rubber guide sleeve (323) is fixed at the tail end of the inner extrusion sleeve (11);
damping device (324) are including protective housing (3241), core dish (3242), shock attenuation spring (3243) and buffering spring (3244), a side of protective housing (3241) is connected on conical surface connector (321), and another side sealing connection is on drawing gum cover (323), be equipped with a plurality of recess and separate boss (3245) between protective housing (3241) and core dish (3242), shock attenuation spring (3242) are installed and are located the recess between two adjacent separate boss (3245), be equipped with a plurality of recesses and spacing boss (3246) in core dish (3242) equally, buffering spring (3244) are installed and are located the recess between spacing boss (3246).
CN202211070108.9A 2022-10-27 2022-10-27 Corrugated pipe extrusion protection device Withdrawn CN115447103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211070108.9A CN115447103A (en) 2022-10-27 2022-10-27 Corrugated pipe extrusion protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211070108.9A CN115447103A (en) 2022-10-27 2022-10-27 Corrugated pipe extrusion protection device

Publications (1)

Publication Number Publication Date
CN115447103A true CN115447103A (en) 2022-12-09

Family

ID=84300846

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211070108.9A Withdrawn CN115447103A (en) 2022-10-27 2022-10-27 Corrugated pipe extrusion protection device

Country Status (1)

Country Link
CN (1) CN115447103A (en)

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Application publication date: 20221209

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