CN214726451U - Winding pipe with extra-high rib structure wall - Google Patents
Winding pipe with extra-high rib structure wall Download PDFInfo
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- CN214726451U CN214726451U CN202023098584.0U CN202023098584U CN214726451U CN 214726451 U CN214726451 U CN 214726451U CN 202023098584 U CN202023098584 U CN 202023098584U CN 214726451 U CN214726451 U CN 214726451U
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Abstract
The utility model discloses a winding pipe with an extra-high rib structure wall, which is formed by spirally winding a base strip and a special-shaped single-wall corrugated pipe after extrusion, cooling and shaping and bonding by molten glue, wherein the base strip forms a pipe body with bottom ribs; the special-shaped single-wall corrugated pipe is wrapped by the melt adhesive and then wound and adhered on the bottom ribs to form the extra-high ribs on the pipe body. The structural wall height of conventional plastic pipe manufactured by side fusion bonding of a single strip wrap is limited because the thickness of the strip after cooling limits its minimum bend radius. The utility model breaks through the above limitation, greatly improves the ratio of the height of the reinforcing rib to the diameter of the pipeline, and compared with the traditional structure wall winding pipe, the unit meter weight of the manufactured pipe with the same rigidity is obviously reduced; in addition, the radial upright inner rib is formed in the extra-high rib by the ingenious manufacturing method and the structure design in the pipeline forming process, so that the structural strength of the extra-high rib is greatly enhanced; the pipe of this scheme structure scientific and reasonable, the manufacturing of being convenient for, the price/performance ratio is obvious, has huge market prospect.
Description
Technical Field
The utility model relates to a plastic conduit technique, especially plastic construction wall pipe specifically are the fashioned extra-high muscle bellows of plastics winding.
Background
The plastic winding structure wall pipe is a pipeline formed by spirally winding an extruded plastic strip on winding equipment, and is widely applied to engineering projects of buried drainage, pollution discharge and the like. Because such pipes need to be buried in deep underground layers, the stiffness of the pressure-bearing ring (external pressure resistance) of the pipe is very important for the pipe, and structural wall plastic pipes (such as corrugated pipes, hollow flat-wall pipes and the like) are widely used due to the fact that the stiffness of the ring is improved at economical material cost. However, the structural wall plastic pipe has the following technical problems:
1. for the structural wall plastic pipe, the external pressure resistance strength is economically improved, and besides the mechanical property of the material, the structural thickness of the pipe is structurally improved, namely simply the ratio of the structural thickness of the pipe to the radius of the pipe is improved, so that a certain ring stiffness is achieved. The plastic winding forming structure wall pipe is mainly formed by the traditional forming method that the cooled formed structure wall belt material is wound and bonded in parallel and side direction to form the pipe. The structural height of the pipe manufactured in the way actually depends on the thickness of the strip in the bending direction, and the thickness of the strip in turn limits the bending radius of the strip, namely the pipe diameter of the pipe which can be bent and wound by the strip, so that the wound structural wall pipe manufactured by the traditional method cannot reach the ideal structural thickness and inner diameter ratio of the pipe, which can only reach 8%, and the internal stress of the pipe manufactured in the way is large, the aging of the material can be accelerated, the service life of the pipe is shortened, and therefore, the traditional forming method cannot manufacture the large-diameter structural wall plastic pipe with high ring stiffness.
2. The manufacturing efficiency of the structural wall plastic pipe must be considered, and in the traditional forming method, the cooling speed and the cooling effect of the structural wall strip after hot melting extrusion by an extruder directly influence the production efficiency of the pipeline, so that when the structural wall strip is designed, the simpler the structure of the cross section is, the better the structure of the cross section is, if the hollow cavity without any redundant inner rib is the best structure of the structural wall strip, the part of the strip needing cooling can be close to the vacuum setting water jacket, but the stability of the extra-high rib of the structural wall of the pipe cannot be improved, and the extra-high rib (such as a corrugated reinforcing rib) of the structural wall is easily crushed, damaged and the like. Therefore, it is difficult to design the inner ribs (such as Y-shaped inner ribs, cross-shaped inner ribs, etc.) with better mechanical strength by the conventional forming method.
The utility model provides a to a great deal of problem that exists among the above-mentioned prior art, provide a plastics winding pipe with unique design, especially the plastics winding pipe of heavy-calibre.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims at providing a can adopt the cold-formed strip to twine the structure wall winding pipe that obtains the high ring rigidity of extra-high muscle in effective bend radius.
The utility model also provides a high-efficient plastics winding arrangement wall pipe that simply forms the radial inner rib of high strength in cavity strengthening rib, strengthened the structural strength of high muscle by a wide margin under the condition that does not influence manufacturing efficiency.
In order to realize the technical purpose, the utility model discloses a scheme is: the winding pipe is formed by spirally winding two types of extruded, cooled and shaped plastic hollow special-shaped strips, wherein the two types of plastic hollow special-shaped strips are respectively a base strip and a special-shaped single-wall corrugated pipe; the spirally wound base band material is bonded laterally through molten glue to form a tube body with a hollow bottom rib; the spirally wound special-shaped single-wall corrugated pipe coated with the hot melt adhesive is adhered to the bottom rib to form a hollow extra-high rib wound on the pipe body; the hot melt adhesive and the base band material are made of the same plastic material, and the special-shaped single-wall corrugated pipe is made of a plastic material with the softening temperature higher than that of the hot melt adhesive.
Preferably, the base strip is a hollow special-shaped strip with a cross section of a bottom plate and two hollow bulges connected with each other; the hollow bulge comprises an inner side wall, an outer side wall and a top wall bridging the tops of the inner side wall and the outer side wall; adjacent protruding lateral wall of cavity is through the melten gel bonding when the base band material is twined, and the rib is at the bottom of the cavity on the tubular product body is formed to the protruding formation of bonded cavity, and the middle part of this end rib has the first support inner rib that is formed by two lateral walls bonding.
Preferably, the cross section of the special-shaped single-wall corrugated pipe is of a hollow cavity structure, the upper part and the lower part of the special-shaped single-wall corrugated pipe are of corrugated structures, and the left side and the right side of the special-shaped single-wall corrugated pipe are smooth and have no corrugation at the combined part of the upper part and the lower part.
Preferably, the hot melt adhesive and the base material are made of PE, and the special-shaped single-wall corrugated pipe is made of PP.
Preferably, the special-shaped single-wall corrugated pipe is one, is integrally coated by hot melt adhesive, and is spirally wound on the top wall adhered to the bottom rib; (ii) a The top of the bottom rib is constructed into a structure with a concave or convex cross section in the middle, and the bottom of the special-shaped single-wall corrugated pipe is correspondingly constructed into a structure with a convex or concave cross section in the middle for matching with the top of the hollow bottom rib.
Preferably, the two special-shaped single-wall corrugated pipes are symmetrical, the two special-shaped single-wall corrugated pipes are laterally and adjacently bonded into a whole through PP (polypropylene) melt adhesive, the whole is coated with hot melt adhesive, and the pipes are spirally wound on the top wall above the hollow bottom rib in a bonding mode.
Preferably, the two profiled single-wall corrugated pipes are laterally adjacent to the bonding surface to form a second supporting inner rib; the first supporting inner rib and the second supporting inner rib in the bottom rib are arranged on the same plane to form a radial vertical inner rib inside the extra-high rib.
Preferably, in order to facilitate positioning and alignment during stacking, the top of the bottom rib is configured to have a concave or convex cross section, and the bottom formed by adjacent bonding of the two special-shaped single-wall corrugated pipes is also correspondingly configured to have a convex or concave cross section for matching with the top of the bottom rib.
The utility model has the advantages that: the base pipe is adopted to form the pipe body and the bottom ribs, and the special-shaped single-wall corrugated pipe is adhered to the bottom ribs and combined to form the extra-high ribs, so that the limitation of the effective bending radius of a single belt material on the height of the reinforcing ribs is broken through, the ratio of the height of the reinforcing ribs to the diameter of the pipeline can be greatly improved, and compared with the traditional plastic winding structure wall pipe, the unit meter weight of the pipe with the same rigidity manufactured by the scheme is obviously reduced; in addition, the ingenious manufacturing method and the structure design enable the radial support inner ribs to be formed in the extra-high ribs in the pipeline forming process, the structural strength of the extra-high ribs is greatly enhanced, and the high ribs are difficult to collapse and be damaged by compression; the plastic winding structure wall pipe and the manufacturing method can effectively improve the production efficiency and save the production cost; the pipe has scientific and reasonable structure, convenient production and manufacture, obvious cost performance and huge market prospect.
Drawings
Fig. 1 is a three-dimensional structure diagram of a plastic winding pipe according to a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a hollow reinforcing rib according to a first embodiment of the present invention;
fig. 3 is a three-dimensional structure diagram of a plastic winding pipe according to a second embodiment of the present invention; (ii) a
Fig. 4 is a schematic cross-sectional view of a hollow reinforcing rib according to a second embodiment of the present invention;
FIG. 5 is a schematic structural view of an embodiment of the single-wall corrugated pipe of the present invention;
fig. 6 is a schematic structural diagram of a specific embodiment of the middle base band of the present invention.
Wherein: 1. the corrugated pipe comprises a pipe body, 11 base strips, 12 PE melt adhesive, 2 extra-high ribs, 21 special-shaped single-wall corrugated pipes, 22 PE coating layers and 23 PP melt adhesive.
Detailed Description
The invention is further explained below with reference to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
The utility model relates to a structure wall winding pipe, which is mainly made of plastic, such as PE, PP, composite plastic, and the concrete used plastic material is selected by the technicians in the field according to the prior art and the performance requirement; the winding structure wall pipe of the present invention is formed by extruding a strip through an extrusion die head through a plastic extruder, as shown in fig. 6, after the strip is cooled and formed, the strip is wound in a bending manner by a winding device for pipe forming, and is bonded to form a pipe, which are well known in the pipe field, and are not described herein.
The hollow strip after cooling and shaping generates internal stress when being bent and wound, the smaller the bending radius is, the larger the internal stress is, and the maximum limit value of the material stress limits the minimum limit value of the bending radius. The ultimate minimum bend radius of a typical Polyethylene (PE) strip cannot be less than 6 times the structural thickness in the direction of bending of the strip, which virtually limits the structural height (thickness) of a conventional wound structural wall pipe made by cooling strip winding, which typically cannot exceed 8% of the inner diameter of the pipe. In order to produce a wound structural wall pipe with high ring stiffness, the structural height of the structural wall pipe must be increased under an economical weight per meter state. How under the more big bend radius of structure thickness for winding strip crooked orientation, the less state of winding strip internal stress, realize improving the purpose of winding arrangement wall pipe structure height, it is the utility model discloses a technical problem that the scheme will fully be solved.
As shown in fig. 1-6, the extra-high rib structure wall winding pipe of the present invention is formed by spirally winding two kinds of extruded, cooled and shaped plastic hollow special-shaped strips, wherein one kind of the plastic hollow special-shaped strip is a base strip 11, and the other kind of the plastic hollow special-shaped strip is a special-shaped single-wall corrugated pipe 21; the base strip 11 is spirally wound and is laterally bonded by the molten gel 12 to form a pipe body 1 with a hollow bottom rib; the special-shaped single-wall corrugated pipe 21 is integrally coated by hot melt adhesive (the hot melt adhesive is cooled to form a coating layer 22), then is spirally wound on the bottom rib, and is simultaneously bonded on the bottom rib by the hot melt adhesive to form a hollow extra-high rib 2 wound on the pipe body; the hot melt adhesive and the base band material are made of the same plastic material, the PE material is adopted in the best embodiment, the special-shaped single-wall corrugated pipe is made of the plastic material with the softening temperature higher than that of the hot melt adhesive, and the PP material is adopted in the best embodiment. The softening temperature of the PP material is higher than that of the PE material, so the PE can not cause the special-shaped single-wall corrugated pipe to be softened when coating the PP special-shaped single-wall corrugated pipe (the PE coating is ensured to be always supported by the un-softened PP special-shaped single-wall corrugated pipe), in addition, the hot melt adhesive and the special-shaped single-wall corrugated pipe are of a coating structure, because the materials are different, the adhesion effect is not necessarily generated, the combination of the special-shaped single-wall corrugated pipe and the pipe body can be realized only through coating, the special-shaped single-wall corrugated pipe can be stably combined with the pipe body through the PE melt adhesive by coating the hot melt adhesive (namely the PE melt adhesive coating layer 4 after cooling), and the technical effect of effective support ring rigidity is obtained.
In the embodiment of the present invention, as shown in fig. 6, the base band 11 is a hollow special-shaped band with a cross section of a bottom plate connecting two hollow protrusions; the hollow bulge comprises an inner side wall, an outer side wall and a top wall bridging the tops of the inner side wall and the outer side wall; adjacent protruding lateral wall of cavity bonds through the melten gel during base band material winding, and the rib is at the bottom of the cavity on the protruding formation tubular product body of bonded cavity, and the middle part of this end rib has the first support inner rib that forms by two lateral walls bonding, and this first support inner rib takes shape in the winding bonding, design benefit, and production efficiency is high. .
In the embodiment of the present invention, as shown in fig. 5, the cross section of the special-shaped single-wall corrugated pipe is also a hollow cavity structure, the upper part and the lower part of the special-shaped single-wall corrugated pipe are corrugated structures, and the left side and the right side are smooth and have no corrugation at the combined part of the upper part and the lower part. The structure has the advantages of directional bending function and capability of forming larger-area contact between the corrugated part and the hot melt adhesive when the corrugated part is coated by the hot melt adhesive, so that extremely stable coating relation can be formed.
In the specific application, at least the following preferred embodiments are provided:
the first embodiment is as follows: as shown in fig. 1 and 2, the special-shaped single-wall corrugated pipe 21 is a single pipe, and is wrapped by hot melt adhesive and then spirally wound on the bottom rib to be adhered to the top wall through the hot melt adhesive; the top of the bottom rib is constructed into a structure with a concave cross section in the middle, and the bottom of the special-shaped single-wall corrugated pipe is correspondingly constructed into a structure with a convex cross section in the middle for matching with the top of the hollow bottom rib.
Example two: as shown in fig. 3 and 4, the two special-shaped single-wall corrugated pipes 21 are symmetrical, the two special-shaped single-wall corrugated pipes are laterally and adjacently bonded by PP hot melt adhesive 23 and then integrally wrapped with hot melt adhesive, and the two special-shaped single-wall corrugated pipes integrally wrapped with hot melt adhesive are spirally wound on the bottom rib and are bonded with the top wall through the hot melt adhesive. Two side adjacent adhesive surfaces of the special-shaped single-wall corrugated pipe form a second supporting inner rib; the first supporting inner rib and the second supporting inner rib in the bottom rib are arranged on the same plane to form a radial vertical inner rib inside the extra-high rib. In order to facilitate the positioning and alignment during the stacking, the top of the bottom rib is constructed into a structure with a concave or convex cross section, and the bottom formed by adjacent bonding of the two special-shaped single-wall corrugated pipes is also correspondingly constructed into a structure with a convex or concave cross section and used for matching the top of the bottom rib.
First support inner rib and second support inner rib form the inside radial upright inner rib of super high muscle 2 and take shape in the winding bonding, design benefit, production efficiency is high, if this kind of inner rib is extruded out directly in the cavity strip, hardly realizes in actual production, and the cooling heat dissipation problem of strip must seriously influence the efficiency of processing, and the structure is complicated, the utility model discloses a scheme has formed the inside radial upright inner rib of super high muscle through the melten gel at the bonded in-process with the side of each strip, very big reinforcing the structural strength of super high muscle for super high muscle 2 also is difficult to the crushing under the condition of far exceeding the height of ordinary strengthening rib, is damaged by the collision, further powerful the ring rigidity (being the bearing capacity) of having ensured the tubular product body.
It is emphasized that, the utility model provides a sufficient height can not be accomplished because of bend radius's restriction to the height of end muscle, so be not enough give the sufficient ring rigidity of tubular product body, consequently need increase end muscle, so need adhere heterotypic single wall bellows and increase, form the special high muscle of sufficient height to satisfy the required ring rigidity of tubular product. This kind solves the restriction of bend radius to structural wall thickness (strengthening rib height) through the mode that many strips bonded increase, is one of the utility model's core contribution, its structure is ingenious, scientific and reasonable, especially implements in manufacturing very easily, does not reduce manufacturing efficiency, and this is produced beneficial effect obviously in this technical field.
In order to facilitate the manufacture and optimize the manufacturing process, in the specific embodiment of the present invention, as shown in fig. 6, when the base strip 11 is wound, the PE melt adhesive 12 squeezed between the outer sidewalls of the adjacent hollow protrusions overflows into the concave groove, and when the V-shaped protrusion at the bottom of the special-shaped single-wall corrugated tube 4 straddles the concave groove of the bottom rib, the overflowing melt adhesive just adheres the PE wrapping layer 22 of the special-shaped single-wall corrugated tube to the upper portion of the bottom rib formed by the base strip, so as to form the extra-high rib 2 wound on the tube body 1; the method reduces the processing complexity, does not need to extrude and inject molten glue additionally, can realize the whole bonding forming process by one-time glue injection, and greatly improves the production efficiency.
The utility model also provides two manufacturing methods, wherein, the method is the manufacturing method aiming at only one special-shaped single-wall corrugated pipe, and the method is the manufacturing method aiming at two symmetrical special-shaped single-wall corrugated pipes.
The method comprises the following steps:
a method for manufacturing a winding pipe with an extra-high rib structure wall adopts a special-shaped single-wall corrugated pipe, and is specifically manufactured by the following method: firstly, preparing a strip, preparing a special-shaped single-wall corrugated pipe by using PP special-shaped single-wall corrugated pipe preparation equipment, and cooling and shaping for later use; extruding a high-temperature flexible hollow special-shaped base belt material through an extrusion die head of PE plastic extrusion equipment, and then sending the base belt material into a water tank for vacuum cooling and shaping of the belt material for later use; spirally winding the cooled and shaped base strips through a pipe forming device, extruding hot-melt PE melt adhesive between the adjacent base strips, and clamping and bonding the adjacent base strips through a clamping wheel to form a pipe body with bottom ribs; meanwhile, the special-shaped single-wall corrugated pipe is integrally coated with the hot-melt PE step by step beside the pipe forming equipment, and the coated special-shaped single-wall corrugated pipe is spirally wound on a bottom rib formed by the pipe body on the same pipe forming equipment to be bonded before the hot-melt PE for coating and the hot-melt PE melt adhesive for bonding the base strip are not cooled.
The second method comprises the following steps:
a manufacturing method of a winding pipe with an extra-high rib structure wall adopts two special-shaped single-wall corrugated pipes, and is manufactured by the following specific method: firstly, preparing a strip, and preparing two symmetrical special-shaped single-wall corrugated pipes for later use by utilizing PP special-shaped single-wall corrugated pipe preparation equipment; extruding a high-temperature flexible hollow special-shaped base belt material through an extrusion die head of PE plastic extrusion equipment, and then sending the base belt material into a water tank for vacuum cooling and shaping of the belt material for later use; spirally winding the cooled and shaped base strips through a pipe forming device, extruding hot-melt PE melt adhesive between the adjacent base strips, and clamping and bonding the adjacent base strips through a clamping wheel to form a pipe body with bottom ribs; meanwhile, two special-shaped single-wall corrugated pipes are gradually laterally bonded by hot-melt PP adhesive and then integrally coated by the hot-melt PE beside the pipe forming equipment, and the two coated special-shaped single-wall corrugated pipes are spirally wound on a bottom rib formed by the pipe body on the same pipe forming equipment to be bonded before the hot-melt PE for coating, the hot-melt PE adhesive for bonding the base strip and the hot-melt PP adhesive are not cooled.
Although the above method is directed to the special-shaped single-wall corrugated pipe made of PP, and the hot melt adhesive and the base strip made of PE, those skilled in the art can easily think of replacing the above PP and PE materials with similar materials, and such replacement does not change the whole manufacturing method and the structure of the produced pipe, and also falls within the protection scope of the present invention.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a super high muscle structure wall winding pipe which characterized in that: the winding pipe is formed by spirally winding two types of extruded, cooled and shaped plastic hollow special-shaped strips, wherein the two types of plastic hollow special-shaped strips are respectively a base strip and a special-shaped single-wall corrugated pipe; the spirally wound base band material is bonded laterally through molten glue to form a tube body with a hollow bottom rib; the spirally wound special-shaped single-wall corrugated pipe coated with the hot melt adhesive is adhered to the bottom rib to form a hollow extra-high rib wound on the pipe body; the hot melt adhesive and the base band material are made of the same plastic material, and the special-shaped single-wall corrugated pipe is made of a plastic material with the softening temperature higher than that of the hot melt adhesive.
2. An extra high web construction wall wrap tube of claim 1, wherein: the base strip is a hollow special-shaped strip with a cross section of a bottom plate and two hollow bulges connected with each other; the hollow bulge comprises an inner side wall, an outer side wall and a top wall bridging the tops of the inner side wall and the outer side wall; adjacent protruding lateral wall of cavity is through the melten gel bonding when the base band material is twined, and the rib is at the bottom of the cavity on the tubular product body is formed to the protruding formation of bonded cavity, and the rib is supported in the first support that forms by two lateral walls bonding in the middle part of this rib at the bottom of cavity.
3. An extra high web construction wall wrap tube of claim 2, wherein: the cross section of the special-shaped single-wall corrugated pipe is of a hollow cavity structure, the upper part and the lower part of the special-shaped single-wall corrugated pipe are of corrugated structures, and the left side and the right side of the special-shaped single-wall corrugated pipe are smooth and have no corrugation at the combined part of the upper part and the lower part.
4. An extra high web construction wall wound pipe according to claim 3, wherein: the hot melt adhesive and the base band material are made of PE materials, and the special-shaped single-wall corrugated pipe is made of PP materials.
5. An extra high web construction wall wound pipe according to claim 4, wherein: the special-shaped single-wall corrugated pipe is a strip, is integrally coated by hot melt adhesive, and is spirally wound on the top wall adhered to the bottom rib; the top of the bottom rib is constructed into a structure with a concave or convex cross section in the middle, and the bottom of the special-shaped single-wall corrugated pipe is correspondingly constructed into a structure with a convex or concave cross section in the middle for matching with the top of the hollow bottom rib.
6. An extra high web construction wall wound pipe according to claim 4, wherein: the special-shaped single-wall corrugated pipes are symmetrically two, the two special-shaped single-wall corrugated pipes are laterally and adjacently bonded into a whole through PP (polypropylene) melt adhesive, the whole is coated with the hot melt adhesive, and the pipes are spirally wound and bonded on the top wall above the hollow bottom ribs.
7. An extra high web construction wall wound pipe according to claim 6, wherein: the two special-shaped single-wall corrugated pipes are laterally adjacent to the bonding surface to form a second supporting inner rib; the first supporting inner rib and the second supporting inner rib in the bottom rib are arranged on the same plane to form a radial vertical inner rib inside the extra-high rib.
8. An extra high web constructed wall wound pipe as claimed in claim 7, wherein: the top of the bottom rib is constructed into a structure with a concave or convex cross section in the middle, and the bottom formed by adjacent bonding of the two special-shaped single-wall corrugated pipes is also correspondingly constructed into a structure with a convex or concave cross section in the middle for matching with the top of the bottom rib.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112644006A (en) * | 2020-12-21 | 2021-04-13 | 广东建通管道制品有限公司 | Winding pipe with extra-high rib structure wall and manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112644006A (en) * | 2020-12-21 | 2021-04-13 | 广东建通管道制品有限公司 | Winding pipe with extra-high rib structure wall and manufacturing method |
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