CN111113965A - Preparation method and pipe coiling process of large-diameter plastic pipe - Google Patents
Preparation method and pipe coiling process of large-diameter plastic pipe Download PDFInfo
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- CN111113965A CN111113965A CN201911405643.3A CN201911405643A CN111113965A CN 111113965 A CN111113965 A CN 111113965A CN 201911405643 A CN201911405643 A CN 201911405643A CN 111113965 A CN111113965 A CN 111113965A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
Abstract
The invention discloses a preparation method of a large-diameter plastic pipe and a pipe coiling process, and relates to the field of steel wire framework net composite pipes. The method comprises the following steps: the first step is as follows: plastic coating of the steel wire; the second step is that: plastic-coated steel wire disc separation; the third step: preparing for tube making and starting; the fourth step: producing a core tube; the fifth step: winding a steel wire; and a sixth step: gluing; the seventh step: coating polyethylene outside; eighth step: printing and cutting to length; the ninth step: stopping the machine, and finally cleaning the equipment and cleaning the equipment on site; the pipe coiling process comprises the following steps: adjusting the position of the winding core plate of the pipe coiling machine; the second step is that: adjusting the position of a pipe orifice clamping plate of a pipe coiling machine; the third step: clamping a pipe orifice flange of the plastic pipe on a pipe orifice clamping plate; the fourth step: starting a winding motor; the fifth step: and (6) packaging. According to the preparation and pipe coiling process of the large-caliber plastic pipe, the produced large-caliber composite pipe can be coiled into a small-diameter round shape, so that the transportation is convenient, the transportation cost is reduced, and the field use is convenient.
Description
Technical Field
The invention relates to a plastic pipe preparation and pipe coiling process, in particular to a large-caliber plastic pipe preparation method and a pipe coiling process.
Background
The steel wire net skeleton plastic composite pipe is an improved novel steel skeleton plastic composite pipe. Such tubes are also known as srtp tubes. The novel pipeline is made of high-strength plastic-coated steel wire mesh framework and thermoplastic plastic polyethylene as raw materials, the steel wire winding mesh is used as a framework reinforcement of the polyethylene plastic pipe, high-density polyethylene (HDPE) is used as a matrix, and the steel wire framework is tightly connected with inner and outer layers of high-density polyethylene by adopting high-performance HDPE modified bonding resin, so that the novel pipeline has an 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.
Because the steel wire mesh framework plastic composite pipe has the flexibility of a plastic pipe, the steel wire mesh framework plastic composite pipe can be rolled into a roll for transportation, in the prior art, most pipe rolling machines can only roll PE pipes with the diameter of less than 63 mm, and the pipes with the diameter of more than 63 mm cannot be rolled into a round pipe with the diameter of less than 2 m, so that the transportation is difficult, the transportation cost is high, and the practical use is inconvenient.
Disclosure of Invention
The invention provides a preparation method of a large-caliber plastic pipe and a pipe coiling process, so that the produced large-caliber composite pipe can be coiled into a small-diameter round shape, the transportation is convenient, the transportation cost is reduced, and the field use is convenient.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a preparation method of a large-caliber plastic pipe comprises the following steps:
first step steel wire plastic coating: firstly, starting up the machine for inspection, injecting water into the water tank after inspection, paying off the wire rack, installing a steel wire disc, starting up the drying cylinder, starting up the extruder, and starting up the double-wheel tractor;
the second step is plastic steel wire disking: fixing the wire separating disc on the wire disc column, and penetrating the steel wire into the inner wire hole;
thirdly, preparing for pipe making and starting: setting the temperature of each extruder and each die, heating, installing a wire disc on a winding machine, respectively drawing steel wires to proper positions through a wire dividing disc and a necking disc, bonding wire heads into bundles by using limb belts, placing a traction tube, and adjusting a tractor crawler belt to clamp the traction tube;
fourthly, core tube production: when the temperature of each extruder and the temperature of each die reach the set temperature, feeding, starting the main extruder and the co-extruder to extrude a core pipe, and starting the first tractor and the vacuum shaping box;
fifthly, steel wire winding: drawing the core tube onto a winding machine, starting the winding machine, and winding the steel wire onto the core tube;
sixthly, gluing: starting a heating box, starting a glue layer extruder and starting a cooling air ring;
seventh step polyethylene coating: respectively starting the outer layer extruder and the color code extruder, adjusting the thickness of the polyethylene at each position of the outer layer to be uniform, and adjusting the rotating speed of the outer layer extruder and the second tractor to enable the thickness of the adhesive layer and the outer diameter of the pipe to meet the requirements;
eighth, printing and rolling the plastic pipe into a round pipe, and cutting to length;
the ninth step is shut down: stopping the core tube extruder, stopping the water tank after the core tube passes through the water tank, stopping high-frequency heating, stopping the adhesive layer extruder, the outer layer extruder and the color code extruder, stopping the tractor and the winding machine, disconnecting the steel wire from the tube, processing the steel wire, stopping the third water tank after the tube is cut, stopping the main power supply and the water-gas path, and finally cleaning equipment and cleaning sanitation on site.
Further, in the first step: during steel wire plastic coating, when a steel wire disc is installed, the steel wire is wound into an 8 shape and then is sent to a drying cylinder.
Further, in a second step: in the plastic-coated steel wire split disc, after a steel wire is inserted into an inner wire hole before splitting, an O-shaped buckle is formed at the end part of the steel wire by using a pointed cone pliers, a power supply is turned on, the rotation speed of the wire disc is adjusted to 50 revolutions per minute, when a meter counter displays that the steel wire is 450 meters (plastic-coated steel wire) or 1400 meters (naked steel wire), the speed is slowly adjusted to 0 revolution per minute at a constant speed, the steel wire is cut off by using a pointed jaw pliers, and a steel wire head is inserted into an outer wire hole to be bent.
Further, the diameter of the wound wire was 0.5 mm.
Furthermore, the acute angle included angle between the steel wire and the central line of the core pipe is 55-60 degrees when the steel wire is wound.
Further, the ratio of the high-pressure material to the low-pressure material is 2:8 when the core tube and the polyethylene covering tube are produced.
A large-caliber plastic pipe reeling process comprises the following steps:
the first step is as follows: adjusting the position of a winding core plate on the pipe coiling machine;
the second step is that: adjusting the position of a pipe orifice clamping plate on the pipe coiling machine;
the third step: clamping a pipe orifice flange of the plastic pipe on a pipe orifice clamping plate;
the fourth step: starting a winding motor to start winding;
the fifth step: and (5) packaging, and unloading the wound plastic pipe from the pipe coiling machine.
Furthermore, when the plastic pipe obliquely upwards enters the pipe coiling machine, an acute included angle between the plastic pipe and the horizontal plane is 15-20 degrees.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the diameter of the steel wire, the winding angle of the steel wire, the ratio of the high-pressure material to the low-pressure material and the angle of the composite pipe entering the pipe coiling machine are changed, so that the large-diameter composite pipe is coiled into a round shape with the diameter meeting the transportation requirement, the transportation is convenient, the transportation cost is reduced, and the large-diameter composite pipe is convenient to use on site.
Description of the drawings:
FIG. 1 is a flow chart of a plastic pipe manufacturing process;
FIG. 2 is a flow chart of a plastic pipe coiling process;
FIG. 3 is a schematic diagram of the overall construction of the pipe coiling apparatus;
in the figure: 1. the device comprises a first auxiliary support 2, a base 3, a second auxiliary support 4, a clamping plate 5, a first locking shaft 6, a winding core plate 7, a second locking shaft 8, a support column 9, a connecting plate 10, a slewing bearing 11, a nut 12, a sliding groove 13, an adjusting clamping groove 14, a gear 15, a motor base 16 and an electromagnetic speed regulating motor.
Detailed Description
The invention discloses a preparation method of a large-caliber plastic pipe, which comprises the following production steps:
the first step is as follows: the steel wire is overmoulded, machine starting inspection is firstly carried out, whether heating elements of an extruder, a die head and a drying cylinder are intact or not is checked, temperature is raised according to technological parameter values, whether power connection is standard, safe and reliable or not is checked, bonding resin is added into a hopper of the extruder, whether a motor of a double-wheel tractor is normal or not is checked, whether a water pump of a water cooling tank is normal or not is checked, and water is injected into the water tank;
starting the machine after the inspection is finished, firstly putting a wire rack, installing a steel wire disc, and firstly moving the steel wire disc to the side of the wire rack by using a crane; and (4) putting down the steel wire disc, penetrating the transverse shaft into the central hole of the disc, and then hanging the disc on a pay-off rack to be installed in place. The wire coils are symmetrically fixed on the cross shaft, and the wire heads are led out to a tension frame (wire storage device) from the upper part of the rolling shaft. The steel wire is led into the guide wheel frame through the left wire guide roller of the wire storage frame, and is wound into an 8 shape between the guide wheel groups, and then is sent to the drying cylinder through the right guide wheel;
then the brake device is correctly adjusted, and one side of the pay-off rack is provided with a ring-shaped brake pad, so that the tightness of the brake pad can be manually adjusted by a screw rod, and the resistance of the drawn steel wire is controlled. The principle of adjustment is that the steel wire is not loosened due to inertia in traction, and the steel wire cannot be knotted;
and then, setting the temperature of the drying cylinders, wherein the production line has 2 drying cylinders, and each drying cylinder is provided with a pressure regulator which can regulate the power. The steel wire is preheated according to the technological parameters so as to achieve the purpose of strong bonding force with the bonding resin when the steel wire passes through. The baking central line is adjusted to be consistent with the central line position of the mouth die of the extruder. The steel is moved in the drying cylinder, and the end cover of the drying cylinder is not allowed to collide and rub. When the steel wire penetrates into the drying cylinder, the power is cut off.
And then starting the extruder, checking the start preparation work, checking that the bonding resin is added into the hopper, ensuring that the specification of the neck ring die meets the production requirement, and ensuring that the material is simple and the temperature of the neck ring die reaches the technological parameter values. After the preheated steel wire passes through the neck mold and is fixed on the take-up reel, the main machine motor is started to enable the screw to run at a low speed, and then the screw is gradually increased and accelerated. Starting an auxiliary machine motor, checking the quality conditions of the surface, the glue layer, the external diameter size, the eccentricity and the like of the extruded steel wire, and adjusting in time until the process requirements are met
And finally, starting the double-wheel tractor, and starting a power supply of the double-wheel tractor to check whether the machine idles normally or not after the temperature of the drying cylinder and the extruder is raised to meet the process requirements. When the idling is normal, the rotating speed of the motor is firstly reduced, and the process required speed is adjusted after the steel wire is drawn to the take-up reel. After the plastic-coated steel wire is led out from the water cooling groove, the steel wire is clamped tightly by a sharp-nose clamp, the steel wire is wound on a driven traction wheel with phi 200 on the left side of the tractor for 2 circles firstly, then wound on a big wheel with phi 630 for 2 circles, and the steel wire passes through a wire outlet frame on the right upper side of the tractor through a right wire wheel. The heavy hammer is arranged on the wire outlet frame, and the pressure of the wire pressing wheel can be changed by adjusting the position of the heavy hammer so as to ensure that the wire is smoothly discharged and the surface quality of the plastic-coated steel wire is ensured.
The second step is that: the plastic-coated steel wire is divided into disks, the divided disks are placed on the wire disk columns and fixed well before parting, the steel wire is inserted into an inner wire hole, an O-shaped buckle is formed at the end part of the steel wire by using a pointed cone pliers to prevent the wire disk from rebounding during initial rotation, a power supply is turned on, the rotation speed of the wire disk is slowly adjusted to 50 revolutions per minute at a constant speed, when a meter counter displays that the rotation speed is close to 450 meters (plastic-coated steel wires) or 1400 meters (bare steel wires), the speed is slowly adjusted to 0 revolution per minute at a constant speed, the steel wire is cut off by using a pointed jaw pliers, a steel wire head is inserted into an outer wire hole to be bent. Clean up peripheral health and broken end of steel wire at any time, prevent to prick.
The third step: preparing for tube making, setting the temperature of each extruder and mould, heating, installing the wire disc on a winding machine, drawing the steel wires to proper positions through the wire dividing disc and the necking disc, adhering the wire heads into bundles by using limb belts, placing the traction tube and adjusting the caterpillar belts of the traction machine to clamp the traction tube.
The fourth step: and (3) producing a core pipe, feeding after the temperatures of the extruders and the dies reach set temperatures, starting the main extruder and the co-extruder to extrude the core pipe, starting the first tractor and the vacuum shaping box, and adjusting the rotating speeds of the extruder and the tractor and the vacuum degree of the water tank to ensure that the outer diameter and the wall thickness of the core pipe meet the index requirements.
The fifth step: and (3) winding the steel wire, drawing the core pipe onto a winding machine, starting the winding machine, winding the steel wire with the diameter of 0.5mm onto the core pipe, wherein the acute angle included angle between the steel wire and the axial center line of the core pipe is 58.5 degrees.
And a sixth step: gluing, starting a heating box, starting a glue layer extruder, starting a cooling air ring, adjusting the thickness of each part of the glue layer to be uniform, and adjusting the rotating speed of the extruder to ensure that the thickness of the glue layer meets the requirement.
The seventh step: polyethylene is coated outside, the outer layer extruder and the color code extruder are respectively started after the glue layer is adjusted normally, the thickness of the outer layer polyethylene is adjusted to be uniform everywhere, and the rotating speeds of the outer layer extruder and the second tractor are adjusted to enable the thickness of the glue layer and the outer diameter of the pipe to meet the requirements.
Eighth step: printing and cutting to length, printing words according to standard mark content, rolling the plastic pipe into a circular pipe and cutting to length according to standard required size.
The ninth step: stopping the core tube extruder, stopping the water tank after the core tube passes through the water tank, stopping high-frequency heating, stopping the adhesive layer extruder, the outer layer extruder and the color code extruder, stopping the tractor and the winding machine, disconnecting the steel wire from the tube, processing the steel wire, stopping the third water tank after the tube is cut, stopping the main power supply and the water-gas path, and finally cleaning the equipment and cleaning the field.
Further, the ratio of the high-pressure material to the low-pressure material is 2:8 when the core tube and the polyethylene covering tube are produced.
For convenient transportation, the plastic pipe can be rolled into a round shape on line, and the structure of the adopted pipe rolling machine is shown in figure 1: the base 2 is fixed on the ground through embedded foundation bolts or expansion bolts, a slewing bearing 10 is fixedly connected to the base 2, a connecting plate 9 is fixedly connected to the slewing bearing 10 through bolts, 6 pillars 8 are welded and fixed around the connecting plate 9 in a circular horizontal mode, each pillar 8 is made of C-shaped steel or welded through steel plates, the 6 pillars 8 are evenly distributed around the connecting plate 9 in an equal angle mode, a first auxiliary support 1 is welded and fixed between every two adjacent pillars 8 and close to the connecting plate 9, and a second auxiliary support 3 is welded and fixed between every two adjacent pillars 8 and far away from the connecting plate 9; all be equipped with spout 13 on every pillar 8, all be equipped with the regulation draw-in groove 14 that runs through pillar 8 in every spout 13 bottom, every spout 13 all is through winding core 6 of second locking axle 7 fixedly connected with, the shape of keeping off the pipe part above the winding core 6 is arc, it is fixed with pillar 8 through second locking axle 7 below, second locking axle 7 passes winding core 6 and regulation draw-in groove 14 back and connects soon with nut 11, spout cardboard 4 of a spout 5 fixed connection through first locking axle 5 on spout 13 of one of them stand 8, first locking axle 5 passes behind spout cardboard 4 and the regulation draw-in groove 14 and connects soon with nut 11.
Based on the pipe coiling equipment, the pipe coiling process of the large-caliber plastic pipe can adopt the following steps:
the first step is as follows: adjusting the position of a winding core plate on the pipe coiling machine to enable the winding inner diameter of the plastic pipe to meet the production requirement;
the second step is that: adjusting the position of a pipe orifice clamping plate on the pipe coiling machine to enable the plastic pipe to smoothly enter the pipe coiling machine for pipe coiling;
the third step: clamping a pipe orifice flange of a plastic pipe on a pipe orifice clamping plate to fix the plastic pipe on a pipe coiling machine so as to facilitate subsequent pipe coiling;
the fourth step: starting a winding motor to start winding;
the fifth step: and (5) packaging, and unloading the wound plastic pipe from the pipe coiling machine.
Specifically, when the plastic pipe obliquely upwards enters the pipe coiling machine, the acute included angle between the plastic pipe and the horizontal plane is 17.3 degrees, so that the plastic pipe can be easily cut into the pipe coiling machine to be coiled.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A preparation method of a large-caliber plastic pipe is characterized by comprising the following steps:
the first step is as follows: performing plastic coating on the steel wire, performing machine starting inspection, injecting water into a water tank after the inspection is finished, installing a steel wire disc, starting a drying cylinder, starting an extruder, and starting a double-wheel tractor;
the second step is that: plastic-coating steel wires and dividing the disks, fixing the wire dividing disks on the wire disk columns, and penetrating the steel wires into the inner wire holes;
the third step: preparing for tube making, setting the temperature of each extruder and each die, heating, installing a wire disc on a winding machine, respectively drawing steel wires to proper positions through a wire dividing disc and a necking disc, bonding wire heads into bundles by using limb belts, placing a traction tube, and adjusting a tractor crawler belt to clamp the traction tube;
the fourth step: producing a core pipe, feeding when the temperature of each extruder and each die reaches a set temperature, starting a main extruder and a co-extruder to extrude the core pipe, and starting a first tractor and a vacuum shaping box;
the fifth step: steel wire winding, namely drawing the core pipe onto a winding machine, starting the winding machine, and winding the steel wire onto the core pipe;
and a sixth step: gluing, starting a heating box, starting a glue layer extruder, and starting a cooling air ring;
the seventh step: coating polyethylene outside, respectively starting an outer layer extruder and a color code extruder, adjusting the thickness of the outer layer polyethylene to be uniform, and adjusting the rotating speed of the outer layer extruder and a second tractor to enable the thickness of the adhesive layer and the outer diameter of the pipe to meet the requirements;
eighth step: printing, rolling the plastic pipe into a round pipe, and cutting to length;
the ninth step: stopping the core tube extruder, stopping the water tank after the core tube passes through the water tank, stopping high-frequency heating, stopping the adhesive layer extruder, the outer layer extruder and the color code extruder, stopping the tractor and the winding machine, disconnecting the steel wire from the tube, processing the steel wire, stopping the third water tank after the tube is cut, stopping the main power supply and the water-gas path, and finally cleaning the equipment and cleaning the field.
2. A method for producing a large-caliber plastic tube according to claim 1, wherein in the first step: during steel wire plastic coating, when a steel wire disc is installed, the steel wire is wound into an 8 shape and then is sent to a drying cylinder.
3. A method for manufacturing a large-caliber plastic pipe according to claim 1, wherein in the second step: in the plastic-coated steel wire split disc, after a steel wire is inserted into an inner wire hole before splitting, an O-shaped buckle is formed at the end part of the steel wire by using a pointed cone pliers, a power supply is turned on, the rotation speed of the wire disc is adjusted to 50 revolutions per minute, when a meter counter displays that the steel wire is 450 meters (plastic-coated steel wire) or 1400 meters (naked steel wire), the speed is slowly adjusted to 0 revolution per minute at a constant speed, the steel wire is cut off by using a pointed jaw pliers, and a steel wire head is inserted into an outer wire hole to be bent.
4. A large-caliber plastic tube manufacturing method as claimed in claim 1, wherein the diameter of the winding wire in the fifth step is 0.5 mm.
5. A method for preparing a large-caliber plastic tube according to claim 4, wherein the steel wire is wound at an acute angle of 55-60 degrees with respect to the axial center line of the core tube.
6. A method for preparing a large-diameter plastic pipe according to claim 5, wherein the ratio of the high pressure material to the low pressure material is 2:8 when producing the core pipe and covering the polyethylene.
7. A large-caliber plastic pipe coiling process is characterized by comprising the following steps:
the first step is as follows: adjusting the position of a winding core plate on the pipe coiling machine;
the second step is that: adjusting the position of a pipe orifice clamping plate on the pipe coiling machine;
the third step: clamping a pipe orifice flange of the plastic pipe on a pipe orifice clamping plate;
the fourth step: starting a winding motor to start winding;
the fifth step: and (5) packaging, and unloading the wound plastic pipe from the pipe coiling machine.
8. The process of coiling pipe in large caliber plastic pipe as claimed in claim 7, wherein the plastic pipe enters the pipe coiling machine obliquely upwards at an acute angle of 15 ° to 20 ° to the horizontal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911405643.3A CN111113965A (en) | 2019-12-31 | 2019-12-31 | Preparation method and pipe coiling process of large-diameter plastic pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911405643.3A CN111113965A (en) | 2019-12-31 | 2019-12-31 | Preparation method and pipe coiling process of large-diameter plastic pipe |
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| CN111113965A true CN111113965A (en) | 2020-05-08 |
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| CN201911405643.3A Pending CN111113965A (en) | 2019-12-31 | 2019-12-31 | Preparation method and pipe coiling process of large-diameter plastic pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111923364A (en) * | 2020-08-12 | 2020-11-13 | 山东圣大管材有限公司 | Production process of steel wire mesh reinforced polyethylene composite pipe |
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| CN104019295A (en) * | 2014-06-09 | 2014-09-03 | 张永杰 | Steel frame steel-plastic composite pipe and manufacturing method and production line of steel frame steel-plastic composite pipe |
| CN206827825U (en) * | 2017-06-26 | 2018-01-02 | 潍坊三江塑胶制品有限公司 | The adjustable chuck of soft tube winding |
| CN207524725U (en) * | 2017-11-29 | 2018-06-22 | 湖北凯乐科技股份有限公司 | A kind of tube rolling device for plastic tube coiler |
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2019
- 2019-12-31 CN CN201911405643.3A patent/CN111113965A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019295A (en) * | 2014-06-09 | 2014-09-03 | 张永杰 | Steel frame steel-plastic composite pipe and manufacturing method and production line of steel frame steel-plastic composite pipe |
| CN206827825U (en) * | 2017-06-26 | 2018-01-02 | 潍坊三江塑胶制品有限公司 | The adjustable chuck of soft tube winding |
| CN207524725U (en) * | 2017-11-29 | 2018-06-22 | 湖北凯乐科技股份有限公司 | A kind of tube rolling device for plastic tube coiler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111923364A (en) * | 2020-08-12 | 2020-11-13 | 山东圣大管材有限公司 | Production process of steel wire mesh reinforced polyethylene composite pipe |
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