CN111923364A - Production process of steel wire mesh reinforced polyethylene composite pipe - Google Patents
Production process of steel wire mesh reinforced polyethylene composite pipe Download PDFInfo
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- CN111923364A CN111923364A CN202010808396.8A CN202010808396A CN111923364A CN 111923364 A CN111923364 A CN 111923364A CN 202010808396 A CN202010808396 A CN 202010808396A CN 111923364 A CN111923364 A CN 111923364A
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- steel wire
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
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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
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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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
- 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
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
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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
- 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
- B29C48/27—Cleaning; Purging; Avoiding contamination
- B29C48/274—Cleaning; Purging; Avoiding contamination of the extruded articles
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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
- 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
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/287—Raw material pre-treatment while feeding
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a production process of a steel wire mesh reinforced polyethylene composite pipe, which comprises a core pipe preparation step, an intermediate layer preparation step and an outer layer preparation step, wherein the core pipe preparation step comprises the steps of core pipe raw material drying, automatic feeding machine belt feeding, core pipe extruding machine extrusion, forming through a special core pipe die and sizing through a sizing sleeve, when deep grooves appear on the inner wall, the production speed of the core pipe extruding machine is reduced by 20% -30%, then a core pipe which is about to enter the sizing sleeve is pushed away for a certain distance, then, sand paper is used for quickly polishing and cleaning an area in the sizing sleeve with impurities, and after cleaning is finished, the production speed of the core pipe extruding machine is increased to the original production speed again. The method is simple and easy to operate, does not need to stop the machine or restart the machine, has less waste products and has high economic value.
Description
Technical Field
The invention relates to a production process of a pipe, in particular to a production process of a steel wire mesh reinforced polyethylene composite pipe.
Background
The steel wire mesh reinforced polyethylene composite pipe takes High Density Polyethylene (HDPE) as a matrix, and adopts high performance HDPE modified bonding resin to tightly connect a steel wire framework with inner and outer layers of HDPE, so that the steel wire mesh reinforced polyethylene composite pipe has excellent composite effect. Because the high strength steel wire reinforcement is encased in the continuous thermoplastic, the composite pipe overcomes the disadvantages of, and maintains the advantages of, steel and plastic pipes, respectively.
1. One or more grooves are easy to appear on the inner wall of the pipe in the production process, the inner wall becomes shallow and deep along with the time, the quality of the pipe is seriously influenced, the pipe is cooled and vacuum-shaped through the sizing sleeve after being extruded, circulating cooling water is arranged on the sizing sleeve, the production time is prolonged, impurities in water and raw materials can be attached to the surface of the sizing sleeve, one or more grooves can be formed after the impurities are not completely cooled after the core pipe is extruded, the current treatment mode is only a stop, the pipe is restarted after the sizing sleeve is cleaned, and therefore a large amount of raw materials, electricity charges and production time are wasted.
2. In the production process, the sizing sleeve is produced for a long time, the cooling spray nozzle is blocked, the sizing sleeve cannot be cooled, the temperature is very high, the core pipe cannot be cooled in time after being extruded into the sizing sleeve, and the core pipe is easy to be broken by pumping under the action of vacuum, so that the machine is stopped.
3. The steel wire winding machine in the production process has over-tight steel wire winding in the plastic-coated steel wire winding process and the exposed steel wire winding process, so that the pipe is easy to bend, and the storage and the integral attractiveness of the pipe are influenced.
4. The cutting process of the pipe in production originally uses the saw blade of the aluminum alloy to cut, causes the section steel wire to spring open very easily, the unevenness, need to carry on long-time polishing with the special tube mill group, waste time, consume the material very much, and the noise when cutting is very loud.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the problems in the production process of the traditional pipe, and provides a production process of a steel wire mesh reinforced polyethylene composite pipe.
In order to solve the problems, the invention adopts the following technical scheme:
a production process of a steel wire mesh reinforced polyethylene composite pipe comprises a core pipe preparation step, an intermediate layer preparation step and an outer layer preparation step, wherein the core pipe preparation step comprises the steps of core pipe raw material drying, automatic feeding machine belt feeding, core pipe extruding machine extrusion, forming through a special core pipe die and sizing through a sizing sleeve, when deep grooves appear on the inner wall, the production speed of the core pipe extruding machine is reduced by 20% -30%, then a core pipe which is about to enter the sizing sleeve is pushed away, after a certain distance is pushed away, sand paper is used for quickly polishing and cleaning an area in the sizing sleeve with impurities, and after cleaning is finished, the production speed of the core pipe extruding machine is increased to the original production speed again.
The following is a further optimization of the present invention to the above scheme:
before cleaning, firstly, determining the position of the deep groove on the pipe wall, and then pulling out the length of the pipe in the production line by using a meter ruler according to the production length of the pipe to start cleaning.
Further optimization: and a water dropping pipe is arranged at the upper end of the core pipe entering the sizing sleeve to cool the sizing sleeve in time. Therefore, the condition of shutdown caused by the fact that the core tube is broken due to the fact that the temperature of the sizing sleeve cannot be reduced is avoided.
Further optimization: the core pipe coming out of the sizing sleeve is subjected to core pipe traction through a front tractor and enters a first steel wire winding machine for plastic-coated steel wire winding; then the steel wire enters a second steel wire winding machine for bare steel wire winding, and finally the steel wire enters a heating device for heating and is compounded with the middle layer.
Further optimization: and grease is respectively coated on the steel wire discs of the first steel wire winding machine and the second steel wire winding machine.
Further optimization: the preparation steps of the intermediate layer are as follows: the method comprises the steps of drying raw materials of the middle layer, feeding the raw materials through an automatic feeding machine, extruding the raw materials through a middle layer extruder, and compounding the raw materials with a wound core pipe through a middle layer compounding die.
Further optimization: the preparation steps of the outer layer are as follows: the outer layer raw material is dried, then is loaded through an automatic loading machine and is extruded through an outer layer extruder, and finally is compounded with the core pipe compounded with the middle layer through an outer layer compounding die again to prepare the finished product composite pipe.
Further optimization: and the composite pipe is cooled by the third vacuum water tank and the fourth vacuum water tank, is drawn by the rear tractor after being printed, is cut according to the specified size, is subjected to appearance inspection after being cut, and is subjected to next procedure when being qualified, and unqualified products are treated according to waste products.
The cutting of tubular product can cut with the diamond material cutting piece of brazing, and the advantage is that the section levels, need not carry out pipe grinder group coping pipe end, can directly get into the head unit and seal, has reduced the process, has improved production efficiency, and the sound of cutting hardly hears moreover.
By adopting the scheme, the invention has the following beneficial effects:
1. when deep grooves appear on the inner wall, the production speed is reduced by 20-30 percent, so that the length of waste products generated by cleaning is reduced; and secondly, the wall thickness of the core pipe is increased, so that the core pipe is not broken during subsequent cleaning.
2. Before cleaning, the general position of the deep groove on the pipe wall is determined by visual inspection and touching the inner wall of the core pipe by hands.
Then, according to the production length of the pipe, the length of the pipe in the production line is pulled out by a meter ruler (for example, the production length of the pipe is 12 meters, when the length of the pipe in the production line is multiple of 12), and the pipe is cleaned, so that waste products generated by cleaning can appear at the end part of the pipe and can be cut. The method is simple and easy to operate, does not need to stop the machine or restart the machine, has less waste products and has high economic value.
2. The sizing sleeve is not prevented from being broken due to high temperature of the sizing sleeve, and a water dropping pipe can be additionally arranged at the upper end of the position, entering the sizing sleeve, of the core pipe to cool the sizing sleeve in time. Therefore, the condition of shutdown caused by the fact that the core tube is broken due to the fact that the temperature of the sizing sleeve cannot be reduced is avoided.
3. When the bending is too large in the production of the pipe, the biggest reason is that the two layers of wound steel wires are too tight, the solution is that butter can be coated on the shafts of the two layers of steel wire discs to play a lubricating role, the bending condition can be greatly improved, and the subsequent placement and the overall attractiveness of the pipe are facilitated.
4. The cutting of tubular product can cut with the diamond material cutting piece of brazing, and the advantage is that the section levels, need not carry out pipe grinder group coping pipe end, can directly get into the head unit and seal, has reduced the process, has improved production efficiency, and the sound of cutting hardly hears moreover.
The invention is further illustrated with reference to the following figures and examples.
Drawings
FIG. 1 is a process flow diagram in an embodiment of the invention.
Detailed Description
The production process of the steel wire mesh reinforced polyethylene composite pipe comprises a core pipe preparation step, a middle layer preparation step, an outer layer preparation step, a cutting step, a pipe grinding step and a head sealing step.
The core tube is prepared by the steps of drying raw materials of the core tube, feeding the raw materials by an automatic feeding machine belt, extruding the raw materials by a core tube extruder, forming the raw materials by a special core tube mould, and sizing by a sizing sleeve;
when deep grooves appear on the inner wall, the production speed of the core pipe extruder is reduced by 20-30 percent, so that the length of waste products generated by cleaning is reduced; and secondly, the wall thickness of the core pipe is increased, so that the core pipe is not broken during subsequent cleaning.
And then pushing the core tube which is about to enter the sizing sleeve away, after pushing a certain distance away, extending the handle into the sizing sleeve, quickly polishing the sand paper, and cleaning the area in the sizing sleeve with impurities, and after cleaning, increasing the production speed of the core tube extruder to the original production speed again.
Before cleaning, the general position of the deep groove on the pipe wall is determined by visual inspection and touching the inner wall of the core pipe by hand, then the length of the pipe in the production line is pulled out by a meter ruler according to the production length of the pipe (for example, the production length of the pipe is 12 meters, when the length of the pipe in the production line is a multiple of 12), and cleaning is started, so that waste products generated by cleaning can appear at the end part of the pipe and can be cut off.
The method is simple and easy to operate, does not need to stop the machine or restart the machine, has less waste products and has high economic value.
In order to prevent the core pipe from being broken due to high temperature of the sizing sleeve, a water dropping pipe can be added at the upper end of the position, entering the sizing sleeve, of the core pipe to cool the sizing sleeve in time. Therefore, the condition of shutdown caused by the fact that the core tube is broken due to the fact that the temperature of the sizing sleeve cannot be reduced is avoided.
The core pipe coming out of the sizing sleeve is subjected to core pipe traction through a front tractor and enters a first steel wire winding machine for plastic-coated steel wire winding;
the steel wire is made by coating high-strength coating steel wire with plastic.
Then the steel wire enters a second steel wire winding machine for bare steel wire winding, and finally the steel wire enters a heating device for heating and is compounded with the middle layer.
When the bending is too large in the production of the pipe, the biggest reason is that the two layers of wound steel wires are too tight, the solution is that butter can be coated on the shafts of the two layers of steel wire discs to play a lubricating role, the bending condition can be greatly improved, and the subsequent placement and the overall attractiveness of the pipe are facilitated.
The preparation steps of the intermediate layer are as follows: the method comprises the steps of drying raw materials of the middle layer, feeding the raw materials through an automatic feeding machine, extruding the raw materials through a middle layer extruder, and compounding the raw materials with a wound core pipe through a middle layer compounding die.
The preparation steps of the outer layer are as follows: the outer layer raw material is dried, then is loaded through an automatic loading machine and is extruded through an outer layer extruder, and finally is compounded with the core pipe compounded with the middle layer through an outer layer compounding die again to prepare the finished product composite pipe.
And the composite pipe is cooled by the third vacuum water tank and the fourth vacuum water tank, is drawn by the rear tractor after being printed, is cut according to the specified size, is subjected to appearance inspection after being cut, and is subjected to next procedure when being qualified, and unqualified products are treated according to waste products.
The cutting of tubular product can cut with the diamond material cutting piece of brazing, and the advantage is that the section levels, need not carry out pipe grinder group coping pipe end, can directly get into the head unit and seal, has reduced the process, has improved production efficiency, and the sound of cutting hardly hears moreover.
And (3) the qualified products are subjected to inspection and enter a pipe grinding machine set to grind pipes, the composite pipes after pipe grinding enter a head sealing machine set to seal heads, the qualified products are warehoused after quality inspection, and the unqualified products are treated according to waste products.
Comparison of the conventional method with the inventive method:
remarking: the larger the specification, the higher the waste value and the electric charge value.
It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.
Claims (8)
1. A production process of a steel wire mesh reinforced polyethylene composite pipe comprises a core pipe preparation step, a middle layer preparation step and an outer layer preparation step, wherein the core pipe preparation step comprises core pipe raw material drying, automatic feeding machine belt feeding, core pipe extruding and sizing through a sizing sleeve after being formed by a special core pipe die, and is characterized in that:
when deep grooves appear on the inner wall, the production speed of the core pipe extruder is reduced by 20% -30%, then the core pipe which is about to enter the sizing sleeve is pushed away, after a certain distance is pushed away, the area in the sizing sleeve with impurities is quickly polished and cleaned by abrasive paper, and after the cleaning is finished, the production speed of the core pipe extruder is increased to the original production speed again.
2. The production process of the steel wire mesh reinforced polyethylene composite pipe as claimed in claim 1, wherein the production process comprises the following steps:
when cleaning, firstly, the position of the deep groove on the pipe wall is determined, and then the length of the pipe in the production line is pulled out by a meter ruler according to the production length of the pipe to start cleaning.
3. The production process of the steel wire mesh reinforced polyethylene composite pipe as claimed in claim 1, wherein the production process comprises the following steps: a water dripping pipe is arranged at the upper end of the position where the core pipe enters the sizing sleeve.
4. The production process of the steel wire mesh reinforced polyethylene composite pipe as claimed in claim 1, wherein the production process comprises the following steps: the core pipe coming out of the sizing sleeve is subjected to core pipe traction through a front tractor and enters a first steel wire winding machine for plastic-coated steel wire winding; then the steel wire enters a second steel wire winding machine for bare steel wire winding, and finally the steel wire enters a heating device for heating and is compounded with the middle layer.
5. The production process of the steel wire mesh reinforced polyethylene composite pipe as claimed in claim 4, wherein the production process comprises the following steps: and grease is respectively coated on the steel wire discs of the first steel wire winding machine and the second steel wire winding machine.
6. The production process of the steel wire mesh reinforced polyethylene composite pipe as claimed in claim 4, wherein the production process comprises the following steps: the preparation steps of the intermediate layer are as follows: the method comprises the steps of drying raw materials of the middle layer, feeding the raw materials through an automatic feeding machine, extruding the raw materials through a middle layer extruder, and compounding the raw materials with a wound core pipe through a middle layer compounding die.
7. The production process of the steel wire mesh reinforced polyethylene composite pipe as claimed in claim 6, wherein the production process comprises the following steps: the preparation steps of the outer layer are as follows: the outer layer raw material is dried, then is loaded through an automatic loading machine and is extruded through an outer layer extruder, and finally is compounded with the core pipe compounded with the middle layer through an outer layer compounding die again to prepare the finished product composite pipe.
8. The production process of the steel wire mesh reinforced polyethylene composite pipe as claimed in claim 7, wherein the production process comprises the following steps: and the composite pipe is cooled by a third vacuum water tank and a fourth vacuum water tank, and then is cut by using a diamond brazing cutting sheet according to the specified size.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010808396.8A CN111923364B (en) | 2020-08-12 | 2020-08-12 | Production process of steel wire mesh reinforced polyethylene composite pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010808396.8A CN111923364B (en) | 2020-08-12 | 2020-08-12 | Production process of steel wire mesh reinforced polyethylene composite pipe |
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| CN111923364A true CN111923364A (en) | 2020-11-13 |
| CN111923364B CN111923364B (en) | 2022-06-24 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2813269Y (en) * | 2005-08-05 | 2006-09-06 | 甘国工 | Apparatus for producing steel wire reinforced composite plastic pipe |
| CN202156016U (en) * | 2011-07-25 | 2012-03-07 | 宁波康润机械科技有限公司 | Device for manufacturing woven steel wires for enhancing composite plastic pipes |
| CN209381356U (en) * | 2018-12-20 | 2019-09-13 | 广东联塑科技实业有限公司 | It is a kind of for producing the vacuum water tank of plastics heavy caliber pipe |
| CN209869363U (en) * | 2019-05-06 | 2019-12-31 | 天津永高塑业发展有限公司 | Self-cleaning PVC pipe sizing sleeve |
| CN111113965A (en) * | 2019-12-31 | 2020-05-08 | 大同久连新材料科技有限公司 | Preparation method and pipe coiling process of large-diameter plastic pipe |
-
2020
- 2020-08-12 CN CN202010808396.8A patent/CN111923364B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2813269Y (en) * | 2005-08-05 | 2006-09-06 | 甘国工 | Apparatus for producing steel wire reinforced composite plastic pipe |
| CN202156016U (en) * | 2011-07-25 | 2012-03-07 | 宁波康润机械科技有限公司 | Device for manufacturing woven steel wires for enhancing composite plastic pipes |
| CN209381356U (en) * | 2018-12-20 | 2019-09-13 | 广东联塑科技实业有限公司 | It is a kind of for producing the vacuum water tank of plastics heavy caliber pipe |
| CN209869363U (en) * | 2019-05-06 | 2019-12-31 | 天津永高塑业发展有限公司 | Self-cleaning PVC pipe sizing sleeve |
| CN111113965A (en) * | 2019-12-31 | 2020-05-08 | 大同久连新材料科技有限公司 | Preparation method and pipe coiling process of large-diameter plastic pipe |
Non-Patent Citations (1)
| Title |
|---|
| 李祖德编: "《塑料加工技术应用手册》", 30 June 1997, 中国物资出版社 * |
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