CN102305316A - Internal rib-reinforced outer corrugated plastic wound structural wall pipe and manufacturing method thereof - Google Patents

Internal rib-reinforced outer corrugated plastic wound structural wall pipe and manufacturing method thereof Download PDF

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Publication number
CN102305316A
CN102305316A CN2011101211862A CN201110121186A CN102305316A CN 102305316 A CN102305316 A CN 102305316A CN 2011101211862 A CN2011101211862 A CN 2011101211862A CN 201110121186 A CN201110121186 A CN 201110121186A CN 102305316 A CN102305316 A CN 102305316A
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rib
pipe
internal
hollow
fusion
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CN2011101211862A
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CN102305316B (en
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戴爱清
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Priority to PCT/CN2011/074466 priority patent/WO2012003744A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/78—Winding and joining, e.g. winding spirally helically using profiled sheets or strips
    • 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
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/18—Pleated or corrugated hoses

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses an internal rib-reinforced outer corrugated plastic wound structural wall pipe and a manufacturing method thereof. The pipe comprises a pipe body formed by winding and welding special-shaped strips spirally, wherein the pipe body comprises a cylindrical pipe wall, a hollow reinforcing rib wound on the pipe wall spirally and a reinforced internal rib which is positioned in the hollow reinforcing rib and is perpendicular to the pipe wall; the reinforced internal rib divides the hollow reinforcing rib into two hollow cavities which are parallel; and the welded combination surface is positioned at the position of the reinforced internal rib. The pipe is formed by winding the plastic special-shaped strips of which two sides are provided with tubular bulges with the hollow cavities spirally and fusing by molten gel. In the manufacturing method, the pipe is formed by winding the plastic special-shaped strips of which the two sides are provided with the tubular bulges with the hollow cavities spirally and fusing by the molten gel, so an obtained plastic corrugated pipe is provided with the hollow reinforcing rib wound on the outer side of the pipe wall, and has high ring stiffness, the combined action of pipe clay and high strength. In addition, by a structure of the reinforced internal rib, the stability of the hollow reinforcing rib can be improved effectively, so that the stability of the wound corrugated pipe is superior to that of other wound corrugated pipes and dual-wall corrugated pipes.

Description

Internal rib reinforcing outer ripple type plastic twining structured wall pipe and production method thereof
Technical field
The present invention relates to a kind of internal rib reinforcing outer ripple type plastic twining structured wall pipe, also relate to the production method of this tubing.
Background technique
Outer ripple plastic winding structure wall pipe with hollow stiffening rib is widely used in the municipal blow-off line construction owing to having good pipeclay acting in conjunction and ring stiffness.
At present, the production method that has an outer ripple plastic winding structure wall pipe of hollow stiffening rib has two kinds usually.
With reference to figure 1, first kind of manufacturing process of aforementioned tubes.At first extrude fusion bar plastic sheet material 1, this sheet material is spirally wound on the circular forming cylinder that many little roller bearings of active rotation are housed continuously regularly side by side by first extruder.Simultaneously; Extrude trapezoidal tubulose stiffening rib 2 by another extrusion molding mechanism; Behind the water-cooled Vacuum shaping with the overlapping the slot position of same spiral canoe cross-pressure each strip plastic sheet neighboring edge on tube wall; Trapezoidal tubulose stiffening rib 2 bottom surfaces are through suitably heating, simultaneously because plastic sheet 1 is in the semi-molten state, through after the rolling of pinch roller; The bar plastic sheet material 1 of tubulose stiffening rib 2 and two-layer mutual overlap joint fuses together, and forms the outer ripple plastic winding structure wall pipe with hollow stiffening rib.Yet there is following defective in this technology: (1), since stiffening rib 2 behind cooling and shaping, twine, determined its height can not be too big, so the tube wall moment of inertia after the moulding is less; (2) the bonding very difficult control of stiffening rib 2 and tube wall is low excessively like strip plastic sheet 1 temperature, then bonding poor; Too high like temperature, 1 of stripe shape plastic sheet can be difficult to control moulding from the forming cylinder tenesmus; (3) accomplish bonding after, the side of stiffening rib 2 is left slot 3 all the time, causes stress to concentrate, face of weld can progressively be ftractureed by slot 3 when the ambient temperature alternate, is prone to cause tube wall to separate with stiffening rib 2 and collapses.
With reference to figure 2, has the alternative manufacturing process of the outer ripple plastic winding structure wall pipe of hollow stiffening rib.What this technology was extruded by first extruder earlier is the special-shaped rectangular tube 4 that the both sides, bottom surface respectively have the suitable shape fin that a mutual welding uses; This abnormal shape rectangular tube 4 is after the vacuum cooling typing; Be spirally wound on the forming cylinder; Constantly extrude the melten gel 5 of fusion by second extruder again, be welded together through the pinch roller backing to the fin connection part that spiral side by side twines special-shaped rectangular tube 4 adjacent correspondences.There is following shortcoming in this technology: this welding position is at the weak part of tubing, and face of weld is little, the melten gel amount is few, thereby has reduced the tubing integral bending.
Therefore, be necessary to provide a kind of manufacturing to have the novel band of the outer ripple plastic winding structure wall pipe of hollow stiffening rib, to overcome above-mentioned technology and structural various shortcoming.
Summary of the invention
In view of the shortcoming of above-mentioned existing technology, the technical problem that the present invention will solve provides a kind of outer ripple plastic winding structure wall pipe with hollow stiffening rib, and this tubing also has higher intensity in tool ring stiffness and coefficient while of pipeclay preferably.
Another technical problem to be solved by this invention provides a kind of production method of aforementioned tubes.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of internal-rib strengthens the ripple type plastic winding structural wall tube; Comprise the tubing body that twines the welding moulding by the heterotypic strip spiral; Said tubing body comprises cylindrical wall, spiral surrounding hollow stiffening rib above that and the enhancing internal-rib perpendicular to tube wall that is positioned at the hollow stiffening rib; This enhancing internal-rib is divided into two hollow cavities arranged side by side with said hollow stiffening rib, and the junction plane of said welding moulding is positioned at this enhancing internal-rib place.
The method of manufacturing aforementioned tubes provided by the present invention is:
A kind of internal-rib strengthens the production method of ripple type plastic winding structural wall tube; This tubing is to be twined in a spiral manner and formed through the melten gel fusion by the plastic shaped band that both sides have a tubular lobes that includes hollow cavity; Two hollow cavities adjacent to each other form the hollow stiffening rib between the adjacent plastic shaped band that twines in a spiral manner after fusing, and form upright enhancing internal-rib at fusion position, hollow stiffening rib middle part.
Method of the present invention also can be done following improvement:
As the improvement of technique scheme, said method specifically may further comprise the steps:
A): extrude the plastic shaped band that continuous both sides have the tubular lobes that includes hollow cavity with first extruder;
B): step a) gained heterotypic strip is spirally wound on the forming cylinder of continuous rotation side by side, makes to form the space between adjacent plastic shaped band two tubular lobes adjacent to each other;
C): the plastics melten gel of in the space described in the step b), clamp-oning fusion with second extruder continuously;
D): to c other two adjacent tubular convexities in space of) having clamp-oned melten gel in the step apply pressure in opposite directions; Make these two tubular protrusions be fused into one closely; Two tubular lobes weldings form the hollow stiffening rib of pipe outer wall, and the fusion position, side of two tubular lobes forms and strengthens internal-rib.
Further improvement as technique scheme; In step d); Pinch roller with being arranged at forming cylinder periphery corresponding position place band corresponding recesses structure rolls corresponding two tubular lobes in both sides, adjacent plastic shaped band welding gap, and other two the adjacent tubular convexities in the space of clamp-oning melten gel are applied pressure in opposite directions.
Further improvement as technique scheme; In the step c); One composite machine head is set on second extruder, and the adapt steel band of radian distortion of the pipe diameter that will prepare with institute that will pass through that forming roll wheel rolls formation passes through this composite machine head, and second extruder is clamp-oned the melten gel of fusion in composite machine head; In composite machine head; The melten gel of fusion is with steel band periphery parcel, and the steel band that is wrapped in melten gel sandwiches in the described space of step b), and the side of two tubular lobes forms with the steel band fusion that is wrapped in melten gel and strengthens internal-rib.
Because the junction plane of tubing welding moulding of the present invention is positioned at this enhancing internal-rib place; Like this; Face of weld between its adjacent heterotypic strip is far longer than the winding structure bellows of all other types; Its welding effect is best in all winding corrugated pipes, thereby makes the product of the inventive method gained have higher intensity.And; Because the effect of fusion; The hollow stiffening rib of the tube wall that the inventive method is made middle part forms a upright enhancing internal-rib; This enhancing internal rib formations can effectively improve the stability of hollow stiffening rib, makes winding corrugated pipe stability of the present invention be superior to other winding corrugated pipe and double-wall corrugated pipe.
Based on said structure of the present invention, it has higher intensity having guaranteed good ring stiffness and good coefficient while of pipeclay.
In addition, tubing production method of the present invention can be equipped with the die head, typing cover and the complementary pinch roller that adapt with common winding structure wall pipe manufacturing mechanism and promptly can produce, and equipment investment is little.
Below will combine accompanying drawing that the technique effect of design of the present invention, concrete structure and generation is described further, to understand the object of the invention, characteristic and effect fully.
Description of drawings
Fig. 1 is a kind of structural representation with outer ripple plastic winding structure wall pipe of hollow stiffening rib in the existing technology;
Fig. 2 is an another kind of structural representation with outer ripple plastic winding structure wall pipe of hollow stiffening rib in the existing technology;
Fig. 3 is the cross-sectional view of tubing of the present invention;
Fig. 4 is a plastics opposite sex belt structure schematic representation of the present invention;
Equipment situation plan when Fig. 5 is to use the inventive method to make tubing;
Fig. 6 uses pinch roller to roll the schematic representation that two tubular lobes are rolled in the inventive method;
Fig. 7 is the structure sectional view of coated steel band in the inventive method.
Embodiment
With reference to Fig. 3; Internal-rib provided by the present invention strengthens the ripple type plastic winding structural wall tube; It comprises the tubing body that is twined the welding moulding by heterotypic strip shown in Figure 4 10 spirals; Said tubing body comprises cylindrical wall 11, spiral surrounding hollow stiffening rib 12 above that and the enhancing internal-rib 13 perpendicular to tube wall that is positioned at hollow stiffening rib 12; This enhancing internal-rib 13 is divided into two hollow cavities arranged side by side 14 with said hollow stiffening rib 12, and the junction plane of said welding moulding is positioned at this enhancing internal-rib 13 places.Because the junction plane of tubing welding moulding of the present invention is positioned at this enhancing internal-rib place; Like this; Face of weld between its adjacent heterotypic strip is far longer than the winding structure bellows of all other types; Its welding effect is best in all winding corrugated pipes, thereby makes the product of the inventive method gained have higher intensity.And; Because the effect of fusion; The hollow stiffening rib of the tube wall that the inventive method is made middle part forms a upright enhancing internal-rib; This enhancing internal rib formations can effectively improve the stability of hollow stiffening rib, makes winding corrugated pipe stability of the present invention be superior to other winding corrugated pipe and double-wall corrugated pipe.
Based on said structure of the present invention, it has higher intensity having guaranteed good ring stiffness and good coefficient while of pipeclay.
The basic design of the production method of aforementioned tubes provided by the present invention is: it is twined in a spiral manner and is formed through the melten gel fusion by the plastic shaped band 10 that both sides have the tubular lobes 100 that includes hollow cavity; Two hollow cavities adjacent to each other form hollow stiffening rib 12 between the adjacent plastic shaped band 10 that twines in a spiral manner after fusing, and the fusion position forms upright enhancing internal-rib 13 at hollow stiffening rib 12 middle parts.
With reference to figure 5, this method specifically may further comprise the steps:
A): extrude the plastic shaped band 10 that continuous both sides have the tubular lobes 100 that includes hollow cavity with first extruder 15;
B): step a) gained heterotypic strip 10 is spirally wound on side by side on the forming cylinder 16 of continuous rotation, makes to form the space between adjacent plastic shaped band 10 two tubular lobes 100 adjacent to each other;
C): the plastics melten gel of in the space described in the step b), clamp-oning fusion with second extruder 17 continuously;
D): to c) pressure that other two adjacent tubular protruding 100 in space of melten gel apply have in opposite directions been clamp-oned in the step; Make these two tubular protrusions 100 be fused into one closely; Two tubular lobes 100 weldings form fusion position, the side formation enhancing internal-rib 13 of 12, two tubular lobes 100 of hollow stiffening rib of pipe outer wall.
So, continuously produce tubing of the present invention along with constantly rotated by the chain wheel drive swing roller.
In conjunction with Fig. 6; In step d); As preferred implementation, corresponding two tubular lobes 100 in pinch roller both sides, 18 pairs of adjacent plastic shaped band 10 welding gaps that usefulness is arranged at forming cylinder 16 periphery corresponding position place band corresponding recesses structures roll, to two pressure that adjacent tubular protruding 100 apply in opposite directions by the space of clamp-oning melten gel; Narrow outer wide shape makes this pressure be decomposed into and makes two tubular lobes, 100 abundant bonding extruding forces in particularly preferably being for groove.Preferably, the pinch roller that is arranged at forming cylinder 16 periphery corresponding positions can be two or more as required.
In conjunction with Fig. 7, in the step c), as preferred implementation; One composite machine head is set on second extruder; The adapt steel band of radian distortion of the pipe diameter that will prepare with institute that will pass through that forming roll wheel rolls formation passes through this composite machine head, and second extruder is clamp-oned the melten gel of fusion in composite machine head, in composite machine head; The melten gel of fusion is with steel band 19 periphery parcels; The steel band that is wrapped in melten gel sandwiches in the described space of step b), and the side of two tubular lobes and the steel band that is wrapped in melten gel 19 fusions formation enhancing internal-rib 13 are to improve the intensity that strengthens internal-rib 13.
Said method can be equipped with the die head, typing cover and the complementary pinch roller that adapt with common winding structure wall pipe manufacturing mechanism and promptly can produce, and equipment investment is little, but wide popularization and application.
Certainly; The invention is not limited to above-mentioned mode of execution; Those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of spirit of the present invention, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.

Claims (5)

1. an internal-rib strengthens the ripple type plastic winding structural wall tube; Comprise the tubing body that twines the welding moulding by the heterotypic strip spiral; Said tubing body comprises cylindrical wall, spiral surrounding hollow stiffening rib above that and the enhancing internal-rib perpendicular to tube wall that is positioned at the hollow stiffening rib; This enhancing internal-rib is divided into two hollow cavities arranged side by side with said hollow stiffening rib, it is characterized in that: the junction plane of said welding moulding is positioned at this enhancing internal-rib place.
2. an internal-rib strengthens the production method of ripple type plastic winding structural wall tube; It is characterized in that: this tubing is to be twined in a spiral manner and formed through the melten gel fusion by the plastic shaped band that both sides have a tubular lobes that includes hollow cavity; Two hollow cavities adjacent to each other form the hollow stiffening rib between the adjacent plastic shaped band that twines in a spiral manner after fusing, and form upright enhancing internal-rib at fusion position, hollow stiffening rib middle part.
3. internal-rib according to claim 2 strengthens the production method of ripple type plastic winding structural wall tube, it is characterized in that, may further comprise the steps:
A): extrude the plastic shaped band that continuous both sides have the tubular lobes that includes hollow cavity with first extruder;
B): step a) gained heterotypic strip is spirally wound on the forming cylinder of continuous rotation side by side, makes to form the space between adjacent plastic shaped band two tubular lobes adjacent to each other;
C): the plastics melten gel of in the space described in the step b), clamp-oning fusion with second extruder continuously;
D): to c other two adjacent tubular convexities in space of) having clamp-oned melten gel in the step apply pressure in opposite directions; Make these two tubular protrusions be fused into one closely; Two tubular lobes weldings form the hollow stiffening rib of pipe outer wall, and the fusion position, side of two tubular lobes forms and strengthens internal-rib.
4. internal-rib according to claim 3 strengthens the production method of ripple type plastic winding structural wall tube; It is characterized in that: in step d); Pinch roller with being arranged at forming cylinder periphery corresponding position place band corresponding recesses structure rolls corresponding two tubular lobes in both sides, adjacent plastic shaped band welding gap, and other two the adjacent tubular convexities in the space of clamp-oning melten gel are applied pressure in opposite directions.
5. strengthen the production method of ripple type plastic winding structural wall tubes according to claim 3 or 4 described internal-ribs; It is characterized in that: in the step c); One composite machine head is set on second extruder, and the adapt steel band of radian distortion of the pipe diameter that will prepare with institute that will pass through that forming roll wheel rolls formation passes through this composite machine head, and second extruder is clamp-oned the melten gel of fusion in composite machine head; In composite machine head; The melten gel of fusion is with steel band periphery parcel, and the steel band that is wrapped in melten gel sandwiches in the described space of step b), and the side of two tubular lobes forms with the steel band fusion that is wrapped in melten gel and strengthens internal-rib.
CN 201110121186 2010-07-06 2011-05-11 Internal rib-reinforced outer corrugated plastic wound structural wall pipe and manufacturing method thereof Active CN102305316B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN 201110121186 CN102305316B (en) 2010-07-06 2011-05-11 Internal rib-reinforced outer corrugated plastic wound structural wall pipe and manufacturing method thereof
PCT/CN2011/074466 WO2012003744A1 (en) 2010-07-06 2011-05-21 Tubular product with outer corrugated type plastic winding structural walls reinforced with internal ribs and the manufaturing method thereof

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN 201010218818 CN101907207A (en) 2010-07-06 2010-07-06 Internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacturing method thereof
CN201010218818.2 2010-07-06
CN 201110121186 CN102305316B (en) 2010-07-06 2011-05-11 Internal rib-reinforced outer corrugated plastic wound structural wall pipe and manufacturing method thereof

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CN102305316A true CN102305316A (en) 2012-01-04
CN102305316B CN102305316B (en) 2013-01-02

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Family Applications (5)

Application Number Title Priority Date Filing Date
CN 201010218818 Pending CN101907207A (en) 2010-07-06 2010-07-06 Internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacturing method thereof
CN2011201485196U Expired - Lifetime CN202125676U (en) 2010-07-06 2011-05-11 External corrugated-type plastic enwound structure-wall tube with reinforced inner fin
CN 201110121186 Active CN102305316B (en) 2010-07-06 2011-05-11 Internal rib-reinforced outer corrugated plastic wound structural wall pipe and manufacturing method thereof
CN2011201485209U Expired - Lifetime CN202079777U (en) 2010-07-06 2011-05-11 Pinch roller used for manufacturing wall tubing with enhanced inner ribs and outer corrugated type plastic structure
CN2011201485054U Expired - Lifetime CN202125675U (en) 2010-07-06 2011-05-11 Strip material for making pipe with inner rib reinforcing outer-corrugation-type plastic winding structure wall

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CN 201010218818 Pending CN101907207A (en) 2010-07-06 2010-07-06 Internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacturing method thereof
CN2011201485196U Expired - Lifetime CN202125676U (en) 2010-07-06 2011-05-11 External corrugated-type plastic enwound structure-wall tube with reinforced inner fin

Family Applications After (2)

Application Number Title Priority Date Filing Date
CN2011201485209U Expired - Lifetime CN202079777U (en) 2010-07-06 2011-05-11 Pinch roller used for manufacturing wall tubing with enhanced inner ribs and outer corrugated type plastic structure
CN2011201485054U Expired - Lifetime CN202125675U (en) 2010-07-06 2011-05-11 Strip material for making pipe with inner rib reinforcing outer-corrugation-type plastic winding structure wall

Country Status (2)

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CN (5) CN101907207A (en)
WO (1) WO2012003744A1 (en)

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CN102305316B (en) 2013-01-02
CN101907207A (en) 2010-12-08

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