CN216330219U - System for producing foaming reinforcement winding pipe by two-step method - Google Patents
System for producing foaming reinforcement winding pipe by two-step method Download PDFInfo
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- CN216330219U CN216330219U CN202122909880.2U CN202122909880U CN216330219U CN 216330219 U CN216330219 U CN 216330219U CN 202122909880 U CN202122909880 U CN 202122909880U CN 216330219 U CN216330219 U CN 216330219U
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- 238000005187 foaming Methods 0.000 title claims abstract description 95
- 238000004804 winding Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000002787 reinforcement Effects 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 88
- 238000007493 shaping process Methods 0.000 claims abstract description 64
- 238000004513 sizing Methods 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 16
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- 238000007599 discharging Methods 0.000 claims description 3
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Abstract
The utility model discloses a system for producing a foaming reinforcement winding pipe by using a two-step method, which comprises the following steps: the pipe wall profile extruder is communicated with the input end of the vacuum cooling shaping box through a discharge port of the pipe wall profile extruder; the output end of the vacuum cooling shaping box is communicated with the section bar input end of the shaping sleeve; the shaping sleeve is provided with a foaming material injection opening, the foaming material injection opening of the shaping sleeve is communicated with a shaping channel of the shaping sleeve, and the output end of the shaping sleeve is communicated with the input end of the winding pipe forming machine; the output end of the foaming material extruder is communicated with a foaming material injection opening of the sizing sleeve; and the output end of the winding pipe forming machine is communicated with the cutting equipment. The production system has the advantages of less equipment investment, less process flow and low operation cost, only a foaming material extruder and a shaping sleeve device are needed to be added into the original winding pipe production system, the defective material is easy to clean, and the later maintenance cost is low.
Description
Technical Field
The utility model relates to the technical field of winding pipe production, in particular to a system for producing a foaming reinforcement winding pipe by using a two-step method.
Background
Municipal drainage networks are an important urban foundation, so that the selection of the used pipes must meet the requirements of specific engineering conditions, functionality, safety, service life and the like. At present, the drain pipe network has two main types of rigid pipeline and flexible pipeline, the rigid pipeline uses the cement pipe, cast iron pipe is main, the pipeline bearing capacity is high, adopt natural material to combine to form, chemical property and actual corrosion resistance are influenced by geographical environment great, life is short, and elastic modulus is higher, this investment cost that leads to appears the damage easily in the in-process of transportation increases, the difference at kneck and other tubular product properties is great, make phenomenons such as infiltration appear when sewage flows easily, the roughness coefficient is great, the later maintenance after having brought very big inconvenience for building the completion has. The flexible pipeline is represented by a polymer pipeline, wherein the main representatives are a double-wall corrugated pipe and a winding pipe, the chemical property is stable, the service life is long, the self weight is light, the transportation is convenient, the elasticity degree is high, the operation can be accurately and finely performed in the process of sealing related interfaces, the leakage is prevented, the structural design shows strong reliability, the loading capacity of the flexible pipeline on soil is greatly enhanced, the sewage cannot be influenced by friction factors in the flowing process, the flexible pipeline is widely applied in the municipal field, but the current double-arm corrugated pipe is limited by production equipment, the product size is limited, the winding pipe has small size limitation, but the product has low structural steel rigidity due to a hollow structure, and the steel belt is corroded due to the adoption of modes of reinforcing the steel belt, the steel belt is not sticky with plastics, and the like, limiting the application of the product.
Adopt the foaming body reinforcing winding pipe can improve the not enough of current reinforcing winding pipe, improve the compressive capacity of pipeline product, the tensile ability of jar body axis, simultaneously because the foaming body can adopt and close the same material and produce, do not have the problem of interfacial adhesion strength, avoided the steel band pipe because the pipeline that the interfacial adhesion is not firm and arouse destroys, causes the technical defect of seepage.
The prior art for reinforcing the foam reinforced winding pipe can refer to Chinese patent CN104329518A, which discloses a production method of a foam reinforced plastic winding pipe, wherein two extruders of an oil extraction worker form a winding pipe section formed by foaming through an extrusion die in a co-extrusion mode, and then form the foam reinforced winding pipe through winding, wherein the forming mode is that the outer wall of the section is extruded through a side wall hole, and then a foam core layer is formed through a hole on a core rod. Because the foaming process is a dynamic process and is in a dynamic fluctuation, namely the foaming ratio of the core material fluctuates up and down along a central value, and because the prior art adopts a coextrusion process, the outer diameter of the section material also changes along with the change of the foaming ratio, thereby bringing difficulty to the process control of products. At the same time. The coextrusion process needs to extrude two materials (section material and foaming material) through the same neck ring die, the foaming material still has the compression to the expansion of foaming gas simultaneously, this flow distribution that involves two kinds of materials, temperature setting control and neck ring runner structural design scheduling problem, must lead to the fact increase by a wide margin and neck ring structure complicacy of mould design work load, make the design manufacturing cost of mould high, and can bring the maintenance cost rise in the production process, complicated mould structure also can make production produce long-pending material easily and be difficult to the clearance simultaneously, make the product quality control degree of difficulty rise. In addition, in the coextrusion process, as the rheological behavior of the foaming material is completely different from that of the common polymer melt, the problem of process matching exists in the coextrusion process, the production needs linkage regulation and control, higher requirements are provided for the operation precision of equipment, instrument control and the quality of raw materials, the equipment investment is increased, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: in view of the above problems, a system for producing a foamed reinforcement wrapped tube using a two-step process is provided to overcome the problems of the existing co-extrusion lines.
The technical scheme adopted by the utility model is as follows: a system for producing a foamed reinforcement wrapped pipe using a two-step process, comprising:
the pipe wall profile extruder is used for extruding C-shaped pipe wall profiles, a feeding port of the pipe wall profile extruder is communicated with a pipe wall profile conveying pipeline, and a discharging port of the pipe wall profile extruder is communicated with an input end of a vacuum cooling shaping box through a conveying belt;
the vacuum cooling shaping box is used for carrying out vacuum sizing and cooling treatment on the C-shaped pipe wall section, and the output end of the vacuum cooling shaping box is communicated with the section input end of the shaping sleeve through a conveying belt;
the shaping sleeve is used for shaping the C-shaped pipe wall profile and injecting a foaming material, the shaping sleeve is provided with a foaming material injection opening, the foaming material injection opening of the shaping sleeve is communicated with a shaping channel of the shaping sleeve, and the output end of the shaping sleeve is communicated with the input end of a winding pipe forming machine through a conveying belt;
the foaming material extruder is used for extruding the foaming material, the input end of the foaming material extruder is communicated with the foaming material conveying channel, and the output end of the foaming material extruder is communicated with a foaming material injection opening of the sizing sleeve;
and the winding pipe forming machine is used for winding and forming the pipe material into a winding pipe, and the output end of the winding pipe forming machine is communicated with the cutting equipment.
Further, the shaping sleeve comprises a shaping channel and a rigid shell, the shaping channel is used for shaping the pipe wall section, the shaping channel penetrates through the shell, a section inlet and a section outlet are formed in two sides of the shell respectively, the shaping channel comprises a conical section and a flat section along the length direction of the shaping channel, one end of the conical section is communicated with the section inlet, the other end of the conical section is communicated with the flat section, the width of the conical section is gradually reduced towards the direction of the flat section to form a conical structure, a foaming material injection opening used for injecting foaming materials is formed in the shell part corresponding to the conical section, one end of the flat section is communicated with the section outlet, and the longitudinal section structure of the flat section is a flat structure.
Further, the size of the channel of the conical section is matched with that of the C-shaped pipe wall profile, so that the C-shaped pipe wall profile is restrained and extruded through the channel structure of the conical section.
Further, the size of the channel of the straight section is matched with the design size of the C-shaped pipe wall profile.
Further, the channel of the straight section is provided with a roller, and the straight section shapes the C-shaped pipe wall section through the roller.
Further, the C-shaped pipe wall section comprises a C-shaped structure, a section opening positioned on the C-shaped structure and a hollow cavity positioned in the C-shaped structure, the C-shaped structure is a circular or similar circular structure, and the hollow cavity is used for filling foaming materials.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that: the production system disclosed by the utility model has the advantages of less equipment investment, less process flow and low operation cost, only a foaming material extruder and a sizing sleeve device need to be added into the original winding pipe production system, a die structure with a complex structure does not need to be arranged, the problem of distribution of different material runners does not need to be considered, the defective material is easy to clean, the later maintenance cost is low, and the technical defects of the traditional co-extrusion production line are overcome.
Drawings
FIG. 1 is a schematic process flow diagram of a method of producing a foamed reinforcement wound tube using a two-step process according to the present invention;
FIG. 2 is a schematic diagram of a two-step process for producing a foamed reinforcement wrapped tube according to the present invention;
FIG. 3 is a schematic cross-sectional view of a sizing sleeve of the present invention;
FIG. 4 is a schematic longitudinal sectional view of a portion of the sizing sleeve of the present invention;
FIG. 5 is a schematic longitudinal cross-sectional view of another angle of the calibrator of the present invention;
FIG. 6 is a schematic longitudinal cross-sectional view of another alternative form set of the present invention;
FIG. 7 is a schematic cross-sectional view of a C-shaped pipe wall profile having a symmetrical C-shaped configuration used in a conventional double-walled wound pipe.
The labels in the figure are: the device comprises a pipe wall profile extruder 1, a vacuum cooling shaping box 2, a shaping sleeve 3, a foaming material injection port 301, a shaping channel 302, a shell 303, a profile inlet 304, a profile outlet 305, a conical section 306, a straight section 307, rollers 308, a foaming material extruder 4, a winding pipe forming machine 5, a C-shaped pipe wall profile 6, a C-shaped structure 601, a hollow cavity 602 and a profile opening 603.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
As shown in fig. 1, a method for producing a foamed reinforcement winding tube using a two-step process, comprises the steps of:
s3, directly feeding the C-shaped pipe wall section material injected with the foaming material into a winding pipe forming machine for winding forming after the shaping of the shaping sleeve, and finally obtaining the foaming reinforcement winding pipe.
S1, feeding the pipe wall material and the foaming material into a pipe wall profile extruder and a foaming core material extruder respectively, wherein the pipe wall profile extruder adopts an existing C-shaped opening die to extrude a C-shaped pipe wall profile;
s2, extruding a C-shaped pipe wall profile through a pipe wall profile extruder according to a conventional process, then carrying out vacuum sizing and cooling, and carrying out curing molding to obtain the C-shaped pipe wall profile;
s3, sending the C-shaped pipe wall profile into a sizing sleeve for sizing, at the moment, injecting a foaming material into a C-shaped cavity of the C-shaped pipe wall profile through a needle-shaped injection opening die (such as an L-shaped injection opening die) by using a foaming core material extruder, starting foaming, adjusting the foaming speed according to the actual process requirement through the using amount of a catalyst, and sizing the C-shaped pipe through the sizing sleeve while injecting the foaming material;
s4, directly feeding the foamed C-shaped pipe wall section into a winding pipe forming machine for winding and forming, and finally, carrying out traction cutting on the winding pipe formed by winding to obtain the foamed reinforcement winding pipe.
The utility model adopts a two-step method to produce the foaming reinforcement winding pipe, the foaming reinforcement winding pipe is firstly extruded and formed to obtain the pipe wall section of the winding pipe, and then the foaming material is injected into the hollow cavity of the pipe wall section after the pipe wall section is completely cooled and shaped, thereby simplifying the production process of the foaming reinforcement winding pipe and reducing the production cost.
In the production process, the foaming material mainly comprises a base material, a foaming agent and a catalyst according to a certain proportion, and the foaming speed of the foaming agent is adjusted mainly by adjusting the dosage of the catalyst.
Further, when the foaming material adopts a physical foaming mode, the foaming agent can be nitrogen or/and carbon dioxide; when the foaming material adopts a chemical foaming mode, the foaming agent can be azodicarbonamide or/and sodium bicarbonate and other common foaming agents.
In the production process of the utility model, the base material of the pipe wall profile is preferably the same as the base material of the foaming material, so that a considerable foaming core layer can be obtained, and the problem of further pipeline damage caused by weak interface bonding due to different materials is avoided.
The utility model also includes a system for producing a foamed reinforcement wrapped pipe using a two-step process, comprising:
the pipe wall profile extruder 1 is used for extruding C-shaped pipe wall profiles 6, a feeding port of the pipe wall profile extruder 1 is communicated with a pipe wall profile conveying pipeline (not shown), and a discharging port of the pipe wall profile extruder is communicated with an input end of the vacuum cooling shaping box 2 through a conveying belt;
the vacuum cooling shaping box 2 is used for carrying out vacuum sizing and cooling treatment on the C-shaped pipe wall section bar 6, and the output end of the vacuum cooling shaping box 2 is communicated with the section bar input end of the shaping sleeve 3 through a conveying belt;
the shaping sleeve 3 is used for shaping the C-shaped pipe wall section bar 6 and injecting foaming materials, the shaping sleeve 3 is provided with a foaming material injection port 301, the foaming material injection port 301 of the shaping sleeve 3 is communicated with a shaping channel of the shaping sleeve 3, and the output end of the shaping sleeve 3 is communicated with the input end of the winding pipe forming machine 5 through a conveying belt;
the foaming material extruder 4 is used for extruding the foaming material, the input end of the foaming material extruder 4 is communicated with a foaming material conveying channel (not shown), and the output end of the foaming material extruder 4 is communicated with a foaming material injection port 301 of the sizing sleeve 3;
and the winding pipe forming machine 5 is used for winding and forming the pipe material into a winding pipe, and the output end of the winding pipe forming machine is communicated with the cutting equipment.
The production system disclosed by the utility model has the advantages of less equipment investment, less process flow and low operation cost, only a foaming material extruder and a sizing sleeve device need to be added into the original winding pipe production system, a die structure with a complex structure does not need to be arranged, the problem of distribution of different material flow channels does not need to be considered, the defective material is easy to clean, and the later maintenance cost is low.
In the production system of the present invention, the function of the sizing sleeve 3 is important, and it is used not only for sizing the C-shaped pipe, but also for injecting the foaming material, and preventing the foaming material from overflowing the hollow structure of the C-shaped pipe during the foaming process, which determines the forming quality of the foamed reinforcement pipe wall profile. For this reason, in order to better obtain the foamed reinforcement tube wall profile with guaranteed quality, we have designed the sizing sleeve 3 specifically, as an embodiment, as shown in fig. 3-5, a sizing sleeve 3 includes a shaping channel 302 for shaping the tube wall profile and a rigid shell 303, the shaping channel 302 penetrates the shell 303 and forms two openings on two sides of the shell, which are respectively a profile inlet 304 and a profile outlet 305, along the length direction of the shaping channel 302, the shaping channel 302 includes a tapered section 306 and a flat section 307, one end of the tapered section 306 is connected to the profile inlet 304, the other end is connected to the flat section 307, the width of the tapered section 306 gradually decreases towards the direction of the flat section to form a channel structure with a certain taper, the portion of the shell 303 corresponding to the tapered section 306 is provided with a foaming material injection port 301, the channel size of the tapered section 306 is matched with the size of the C-shaped tube, the size of the C-shaped pipe wall section 6 is gradually restricted by the conical section 306, so that the C-shaped opening is gradually closed, when the C-shaped pipe wall section 6 enters the conical section 306, the foaming material injection port 301 corresponds to the C-shaped opening of the C-shaped pipe wall section 6, so that the foaming material extruder 4 injects the foaming material into the hollow cavity of the C-shaped pipe wall profile through the foaming material injection port 301, and during the process of restraining the C-shaped pipe wall profile 6 by the conical section 306, in the foaming process of the foaming material in the hollow cavity of the C-shaped pipe wall profile 6, along with the movement of the C-shaped pipe wall profile 6, when the conical section 306 restricts and extrudes the C-shaped pipe wall profile 6, the foaming material is prevented from overflowing out of the hollow cavity of the C-shaped pipe wall profile 6, the method not only ensures the foaming quality of the foaming reinforcement pipe wall profile, but also avoids the waste of foaming materials and avoids the problem of material accumulation in the shaping sleeve. Further, the C-shaped pipe wall section 6 directly enters the straight section 307 after passing through the tapered section 306, one end of the straight section 307 is connected with the tapered section 306, the other end of the straight section is connected with the section outlet 305, the width dimension of the straight section 307 is a fixed value, the fixed value is related to the design dimension of the finally obtained foaming reinforcement pipe wall section, the straight section 307 mainly carries out further shaping on the C-shaped pipe wall section 6, after the shaping treatment of the straight section 307, the C-shaped pipe wall section 6 leaves the shaping sleeve 3 through the section outlet 305, a section meeting the design requirement is obtained, and the C-shaped pipe wall section 6 treated by the shaping sleeve 3 can be directly sent into the winding pipe forming machine 5 for winding pipe making operation.
Further, as an embodiment, the straight section 307 of the sizing sleeve 3 of the present invention may be configured as a roller structure, as shown in fig. 6, and rollers 308 are installed on the upper and lower wall surfaces of the straight section 307, so as to facilitate smooth sizing.
Further, the C-shaped pipe wall profile 6 of the present invention may be made of an existing C-shaped pipe wall profile structure, and the present invention has no special requirement, as shown in fig. 7, fig. 7 shows a C-shaped pipe wall profile 6 for manufacturing a double-wall winding pipe with a symmetrical C-shaped structure 601, wherein the C-shaped structure 601 has a hollow cavity 602 and a profile opening 603, when the C-shaped pipe wall profile 6 enters the sizing sleeve 3, the foaming material injection opening 301 corresponds to the profile opening 603 of the C-shaped pipe wall profile 6, and when the conical section of the sizing sleeve 3 performs constrained extrusion on the C-shaped pipe wall profile, the C-shaped structure is gradually closed, so as to confine the foaming material in the hollow cavity 602, thereby preventing the foaming material from overflowing.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A system for producing a foamed reinforcement wound tube using a two-step process, comprising:
the pipe wall profile extruder is used for extruding C-shaped pipe wall profiles, a feeding port of the pipe wall profile extruder is communicated with a pipe wall profile conveying pipeline, and a discharging port of the pipe wall profile extruder is communicated with an input end of a vacuum cooling shaping box through a conveying belt;
the vacuum cooling shaping box is used for carrying out vacuum sizing and cooling treatment on the C-shaped pipe wall section, and the output end of the vacuum cooling shaping box is communicated with the section input end of the shaping sleeve through a conveying belt;
the shaping sleeve is used for shaping the C-shaped pipe wall profile and injecting a foaming material, the shaping sleeve is provided with a foaming material injection opening, the foaming material injection opening of the shaping sleeve is communicated with a shaping channel of the shaping sleeve, and the output end of the shaping sleeve is communicated with the input end of a winding pipe forming machine through a conveying belt;
the foaming material extruder is used for extruding the foaming material, the input end of the foaming material extruder is communicated with the foaming material conveying channel, and the output end of the foaming material extruder is communicated with a foaming material injection opening of the sizing sleeve;
and the winding pipe forming machine is used for winding and forming the pipe material into a winding pipe, and the output end of the winding pipe forming machine is communicated with the cutting equipment.
2. The system for producing a wrapped pipe with a foamed reinforcement by the two-step process according to claim 1, wherein the sizing sleeve comprises a sizing channel for sizing the profile of the pipe wall and a rigid shell, the sizing channel penetrates through the shell and forms a profile inlet and a profile outlet on both sides of the shell, the sizing channel comprises a tapered section and a flat section along the length direction of the sizing channel, one end of the tapered section is communicated with the profile inlet, the other end of the tapered section is communicated with the flat section, the width of the tapered section is gradually reduced towards the direction of the flat section to form a tapered structure, the portion of the shell corresponding to the tapered section is provided with a foaming material injection port for injecting foaming material, one end of the flat section is communicated with the profile outlet, and the longitudinal section structure of the flat section is a flat structure.
3. The system of claim 2 wherein the channel size of the conical section is matched to the C-shaped pipe wall profile to constrain and extrude the C-shaped pipe wall profile by the channel structure of the conical section.
4. The system of claim 3 wherein the channel size of the straight section is matched to the design size of the C-tube wall profile.
5. The system of claim 4, wherein the channel of the straight section is provided with rollers, and the straight section shapes the C-shaped pipe wall profile through the rollers.
6. The system of claim 1, wherein the C-shaped pipe wall profile comprises a C-shaped structure, a profile opening on the C-shaped structure, and a hollow cavity in the C-shaped structure, wherein the C-shaped structure is a circular or circular-like structure, and the hollow cavity is filled with a foaming material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122909880.2U CN216330219U (en) | 2021-11-25 | 2021-11-25 | System for producing foaming reinforcement winding pipe by two-step method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122909880.2U CN216330219U (en) | 2021-11-25 | 2021-11-25 | System for producing foaming reinforcement winding pipe by two-step method |
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| CN216330219U true CN216330219U (en) | 2022-04-19 |
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| CN202122909880.2U Active CN216330219U (en) | 2021-11-25 | 2021-11-25 | System for producing foaming reinforcement winding pipe by two-step method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131948A (en) * | 2021-11-25 | 2022-03-04 | 成都中企动力技术服务有限公司 | Method and system for producing foaming reinforcement winding pipe by two-step method |
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2021
- 2021-11-25 CN CN202122909880.2U patent/CN216330219U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131948A (en) * | 2021-11-25 | 2022-03-04 | 成都中企动力技术服务有限公司 | Method and system for producing foaming reinforcement winding pipe by two-step method |
| CN114131948B (en) * | 2021-11-25 | 2023-09-22 | 成都中企动力技术服务有限公司 | Method and system for producing foam reinforcement winding pipe by two-step method |
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