CN103950185A - Process and device for producing continuous lining plastic compound steel pipes - Google Patents
Process and device for producing continuous lining plastic compound steel pipes Download PDFInfo
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- CN103950185A CN103950185A CN201410196997.2A CN201410196997A CN103950185A CN 103950185 A CN103950185 A CN 103950185A CN 201410196997 A CN201410196997 A CN 201410196997A CN 103950185 A CN103950185 A CN 103950185A
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Abstract
The invention discloses a process and a device for producing continuous lining plastic compound steel pipes. The production device sequentially comprises an automatic feeding device, a stepping heating device, a flanging device, a sealing and pressing device and a cooling device in a material conveying direction. The process comprises the following steps: (1) firstly preprocessing the inner walls of galvanized steel pipes; (2) drawing plastic lining pipes into the steel pipes and causing two ends of the plastic lining pipes to extend out of the steel pipes; (3) heating the steel pipes containing the plastic lining pipes to enable temperatures of the steel pipes to reach 150 DEG C-180 DEG C; (4) flanging one section of plastic lining pipes extending out of the steel pipes backwards to enable the section of plastic lining pipes to wrap the steel pipes, namely wrapping the edges of openings of the steel pipes; (5) filling two ends of the steel pipes with compressed air to enable pressure to be 0.5-1.0MPa, and expanding the plastic lining pipes to be close to the inner walls of the steel pipes; and (6) spraying and cooling the surfaces of the steel pipes. By virtue of the process and the device, the production speed is greatly improved; the process and the device are low in production costs and conducive to large-scale continuous production; meanwhile, the lining plastic compound steel pipes produced by the process and the device are good in quality.
Description
Technical field
The present invention relates to plastic lining composite steel pipe, especially continuously plastic lining composite steel pipe production technology and equipment.
Background technology
The production technology of original plastic lining composite steel pipe is to mould the steel pipe of pipe → with sealing clamp by the sealing of two ends tube head drawing in, and fills compressed air, → being heated to PUR fusing holding tube internal pressure, last cooling curing forms.Original technique is, after the steel pipe of first moulding pipe to drawing in seals inflation and suppresses, just can heat, and the process of heating is wanted holding tube internal pressure, at heating status lower seal because moulding pipe, so require sealed cartridge complex structure, specification size all will independently be mated, can not be general.In production, air pressure is too low, moulds pipe Swelling and does not open; Excess Temperature, moulds the pipe gas leakage of can boring a hole, and still moulds pipe Swelling and does not open.These are all the key factors that directly affects plastic lining composite steel pipe quality.In addition, existing equipment is semiautomatic mostly, can not accomplish continuous production, and production efficiency is low.
Summary of the invention
One of technical problem to be solved by this invention is to provide a kind of plastic lining composite steel pipe production equipment continuously, has improved greatly the speed of producing, and production cost is lower, is beneficial to formation large-scale continuous production; And the plastic lining composite steel pipe quality of producing is good.
One of technical problem to be solved by this invention is to provide a kind of plastic lining composite steel pipe production technology continuously, has improved greatly the speed of producing, and production cost is lower, is beneficial to formation large-scale continuous production; And the plastic lining composite steel pipe quality of producing is good.
For one of solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of plastic lining composite steel pipe production equipment continuously, comprises automatic charging device, stepping heater, hemmer, sealing pressure device and cooling device successively according to mass transport direction;
Described automatic charging device comprises pipe stand and is located at the lifting mechanism of described upper pipe stand end, described upper pipe stand comprises feet and is located at the material loading tilting table on described feet, described material loading tilting table front end is higher than end, and described material loading tilting table end is provided with the first block; Described lifting mechanism comprises pressure pin and the lifting machine that drives described pressure pin to move up and down, described pressure pin is inclined to set, and its front end is higher than end, the front end of described pressure pin stretches into the below of material loading tilting table end, when pressure pin lifting, can lift and make it to enter on pressure pin a steel pipe, the pressure pin other end be provided with the second block for stopping that steel pipe drops;
Described stepping heater comprises heating furnace and is located at the first cyclic conveyor structure in described heating furnace, the front end of described the first cyclic conveyor structure and end stretch out respectively outside heating furnace, for docking with lifting mechanism and hemmer, described the first cyclic conveyor structure comprises stepper motor, chain and is located at the bracket on described chain, described bracket is equally distributed on described chain, described bracket top is V-shaped, in the time that steel pipe falls into pressure pin end, bracket holds up steel pipe bring in heating furnace;
Described hemmer comprises the steel bowl that is positioned at steel pipe two ends, described steel bowl flare, and the openend diameter of steel bowl is greater than diameter of steel tube, and the inner diameter of steel bowl is less than diameter of steel tube;
Described sealing pressure device comprises the second cyclic conveyor structure, be located on described the second cyclic conveyor structure and be equally spaced suppress mechanism and high-pressure air source, the described mechanism that suppresses comprises and suppresses valve, obturating cup, is located at suppressing valve and driving obturating cup flexible cylinder in obturating cup, described in suppress valve and be connected with high-pressure air source by tracheae;
Described cooling device comprises described the second cyclic conveyor structure and is located at the spraying mechanism of described the second cyclic conveyor structure top.
As improvement, also comprise the doffer of being located at described cooling device rear, described doffer comprises feet and be located at the blanking tilting table on feet, and described blanking tilting table front end is higher than end, and the end of blanking tilting table docks with the frame that gathers materials.
As improvement, described lifting machine comprises lifting motor, chain, vertical slide rail and is located at the slide block that described vertical slide rail does not have, and described chain is connected with slide block, drives slide block to move up and down in vertical slide rail, described slide block is provided with support bar, and the top of described support bar is connected with pressure pin.
As improvement, described heating furnace comprises body of heater, combustion chamber and air channel, and this circulating-heating mode is applicable to the continuous need of production of plastic lining composite steel pipe.
As improvement, described the second cyclic conveyor structure front end is provided with unlatching shifting block, and rear end is provided with closes shifting block; Suppress valve and touch to open after shifting block and trigger and suppress valve work, suppress valve and touch to close to trigger after shifting block and suppress valve and quit work.Suppress the apparatus structure that valve opens and closes automatically simple, and can realize automation.
As solve the problems of the technologies described above two, technical scheme of the present invention is:
A kind of plastic lining composite steel pipe production technology continuously, comprises the following steps;
(1) first coating steel pipe inside pipe wall is carried out to pretreatment;
(2) plastic liner is drawn in steel pipe, and stretch out outside steel pipe at the two ends of plastic liner;
(3) steel pipe that contains plastic liner is heated, make the temperature of steel pipe reach 150 DEG C～180 DEG C;
(4) by the one section of plastic liner flange backward stretching out outside steel pipe, make its parcel steel pipe, steel pipe nozzle is carried out to bound edge;
(5) fill compressed air to 0.5 ~ 1.0MPa at the two ends of steel pipe, plastic liner is expanded, be attached to steel pipe inner wall;
(6) steel tube surface is carried out to spraying cooling.
As improvement, the heat time of described steel pipe is 18 ~ 20 minutes.
As improvement, when carrying out pressurising in steel pipe, need to keep steel pipe internal pressure 5 ~ 10 minutes.
As improvement, to the steel pipe chilling spray time be 3 ~ 6 minutes.
Brief description of the drawings
Fig. 1 is plastic lining composite steel pipe continuous producing apparatus top view.
Fig. 2 is plastic lining composite steel pipe continuous producing apparatus side view.
Fig. 3 is automatic charging device structural representation.
Fig. 4 is carrier structure schematic diagram.
Fig. 5 is for suppressing mechanism's structural representation.
Fig. 6 is the continuous flow sheet of plastic lining composite steel pipe.
Detailed description of the invention
Below in conjunction with Figure of description, the invention will be further described.
As shown in Figure 1, 2, a kind of plastic lining composite steel pipe production equipment continuously, comprises automatic charging device 1, stepping heater 3, hemmer, sealing pressure device 4, cooling device 9 and doffer 5 successively according to mass transport direction.
As shown in Figure 2,3, described automatic charging device 1 comprises pipe stand and the lifting mechanism 2 of being located at described upper pipe stand end.Described upper pipe stand comprises feet 11 and is located at the material loading tilting table 12 on described feet 11; Described material loading tilting table 12 front ends are higher than end, and described material loading tilting table 12 ends are provided with the first block, and steel pipe 7 enters after material loading tilting table 12, can automatically roll that terminad was subject to for the first stopping of block and only with the end of material loading tilting table 12.Described lifting mechanism 2 comprises pressure pin 21 and the lifting machine that drives described pressure pin 21 to move up and down; Described pressure pin 21 is inclined to set, and its front end is higher than end, the front end of described pressure pin 21 stretches into the below of material loading tilting table 12 ends, when pressure pin 21 lifting, can lift and make it to enter on pressure pin 21 steel pipe 7, and pressure pin 21 other ends are provided with the second block 22 for stopping that steel pipe 7 drops; Described lifting machine comprises lifting motor, chain, vertical slide rail and is located at the slide block in described vertical slide rail, described chain is connected with slide block, drive slide block to move up and down in vertical slide rail, described slide block is provided with support bar, and the top of described support bar is connected with pressure pin 21.
As shown in Figure 2, described stepping heater 3 comprises heating furnace and be located at the first cyclic conveyor structure 31 in described heating furnace, and the front end of described the first cyclic conveyor structure 31 and end stretch out respectively outside heating furnace, for docking with lifting mechanism 2 and hemmer; Described the first cyclic conveyor structure 31 comprises stepper motor, chain and is located at the bracket 311 on described chain, described bracket 311 is equally distributed on described chain, as shown in Figure 4, described bracket 311 tops are V-shaped, in the time that steel pipe 7 falls into pressure pin 21 end, bracket 311 holds up steel pipe 7 bring in heating furnace, thereby realizes the automatic Transition of steel pipe 7 from feeding device to stepping heater 3; Described heating furnace comprises body of heater, combustion chamber and air channel, can form hot air circulation, and passing steel pipe 7 is carried out to even laser heating.
Described hemmer comprises the steel bowl that is positioned at steel pipe 7 two ends, described steel bowl flare, and the openend diameter of steel bowl is greater than steel pipe 7 diameters, and the inner diameter of steel bowl is less than steel pipe 7 diameters.In the time that steel bowl presses steel pipe 7 end, the plastic liner stretching out can be carried out to flange and wrap up steel pipe 7 mouths of pipe.
As shown in Figure 2, between described hemmer and sealing pressure device 4, be provided with transition apparatus 8, this transition apparatus 8 comprises support and is located at the transition tilting table on described support, described transition tilting table front end, higher than rear end, is transitioned on sealing pressure device 4 by transition apparatus 8 automatically through the steel pipe 7 of heating.
As shown in Fig. 2,5, described sealing pressure device 4 comprises the second cyclic conveyor structure 41, be located on described the second cyclic conveyor structure 41 and be equally spaced suppress mechanism 42 and high-pressure air source; The described mechanism 42 that suppresses comprises and suppresses valve, obturating cup 422, is located at suppressing valve 423 and driving obturating cup 422 flexible cylinder 421 in obturating cup 422; The described valve 423 of suppressing is connected with high-pressure air source by tracheae, in the time that steel pipe 7 is transported to obturating cup 422 place, the obturating cup 422 at steel pipe 7 two ends clamps the two ends of steel pipe 7, under the effect of obturating cup 422, make steel pipe 7 inside in sealing state, then open and suppress valve, to carrying out pressurising in steel pipe 7; Described the second cyclic conveyor structure 41 front ends are provided with unlatching shifting block, rear end is provided with closes shifting block, suppress valve and touch to open to trigger after shifting block and suppress valve 423 and work, suppress valve and touch to close to trigger after shifting block and suppress valve 423 and quit work, thereby realize the automatic control of suppressing valve.
As shown in Figure 2, described cooling device 9 comprises described the second cyclic conveyor structure 41 and the spraying mechanism of being located at described the second cyclic conveyor structure 41 tops.Described spraying mechanism comprises shower nozzle, water tank and water circulation system.
As shown in Figure 2, described doffer 5 comprises feet and is located at the blanking tilting table on feet, described blanking tilting table front end is higher than end, in the time that steel pipe 7 is transported to blanking tilting table front end by the second cyclic conveyor structure 41, cylinder 421 drives obturating cup 422 to leave steel pipe 7, steel pipe 7 falls on blanking tilting table automatically, and last steel pipe 7 is automatically scrolling to the end of blanking tilting table and enters in the frame 6 that gathers materials to be collected.
As shown in Figure 6, the continuous plastic lining composite steel pipe production technology of the present invention is:
(1) first coating steel pipe 7 inside pipe walls are carried out to pretreatment, to cleaning in steel pipe 7 and burr processing;
(2) plastic liner is drawn in steel pipe 7, and the two ends of plastic liner stretch out outside steel pipe 7, use as flange;
(3) steel pipe 7 is delivered on automatic charging device 1, made each operation below that completes that steel pipe 7 can Automatic continuous;
(4) steel pipe that contains plastic liner 7 is sent into stepping heater 3 and heat, make the temperature of steel pipe 7 reach 150 DEG C～180 DEG C, the heat time continues 18 ~ 20 minutes;
(5) utilize steel bowl by the one section of plastic liner flange backward stretching out outside steel pipe 7, make its parcel steel pipe 7, steel pipe 7 mouths of pipe are carried out to bound edge;
(6) open and suppress after valve 423, fill compressed air to 0.5 ~ 1.0MPa at the two ends of steel pipe 7, the duration is 5 ~ 10 minutes, and plastic liner is expanded, and is attached to steel pipe 7 inwalls;
(7) spraying cooling is carried out in steel pipe 7 surfaces, to the 7 chilling spray times of steel pipe be 3 ~ 6 minutes.
(8) blanking, focuses on the plastic lining composite steel pipe of producing 7 to gather materials in frame.
Technique of the present invention is first to heat steel pipe 7, and some softening pipe flange of moulding that expose are stayed at two ends, and it is encased the pipe end of steel pipe 7, and utilizes softening moulding to manage and simple sealing clamp sealing, and effect is fine, and pipe end plays good antisepsis.
The whole production process control of the present invention is undertaken by PLC control system, and in the time that heating furnace enters an arm, refrigeration bench frame just goes out a production tube, and this equipment has improved the speed of producing greatly, and production cost is lower, is beneficial to formation large-scale continuous production.
Claims (9)
1. a continuous plastic lining composite steel pipe production equipment, is characterized in that: comprise successively automatic charging device, stepping heater, hemmer, sealing pressure device and cooling device according to mass transport direction;
Described automatic charging device comprises pipe stand and is located at the lifting mechanism of described upper pipe stand end, described upper pipe stand comprises feet and is located at the material loading tilting table on described feet, described material loading tilting table front end is higher than end, and described material loading tilting table end is provided with the first block; Described lifting mechanism comprises pressure pin and the lifting machine that drives described pressure pin to move up and down, described pressure pin is inclined to set, and its front end is higher than end, the front end of described pressure pin stretches into the below of material loading tilting table end, when pressure pin lifting, can lift and make it to enter on pressure pin a steel pipe, the pressure pin other end be provided with the second block for stopping that steel pipe drops;
Described stepping heater comprises heating furnace and is located at the first cyclic conveyor structure in described heating furnace, the front end of described the first cyclic conveyor structure and end stretch out respectively outside heating furnace, for docking with lifting mechanism and hemmer, described the first cyclic conveyor structure comprises stepper motor, chain and is located at the bracket on described chain, described bracket is equally distributed on described chain, described bracket top is V-shaped, in the time that steel pipe falls into pressure pin end, bracket holds up steel pipe bring in heating furnace;
Described hemmer comprises the steel bowl that is positioned at steel pipe two ends, described steel bowl flare, and the openend diameter of steel bowl is greater than diameter of steel tube, and the inner diameter of steel bowl is less than diameter of steel tube;
Described sealing pressure device comprises the second cyclic conveyor structure, be located on described the second cyclic conveyor structure and be equally spaced suppress mechanism and high-pressure air source, the described mechanism that suppresses comprises and suppresses valve, obturating cup, is located at suppressing valve and driving obturating cup flexible cylinder in obturating cup, described in suppress valve and be connected with high-pressure air source by tracheae;
Described cooling device comprises described the second cyclic conveyor structure and is located at the spraying mechanism of described the second cyclic conveyor structure top.
2. continuous plastic lining composite steel pipe production equipment according to claim 1, it is characterized in that: also comprise the doffer of being located at described cooling device rear, described doffer comprises feet and is located at the blanking tilting table on feet, described blanking tilting table front end is higher than end, and the end of blanking tilting table docks with the frame that gathers materials.
3. continuous plastic lining composite steel pipe production equipment according to claim 1, it is characterized in that: described lifting machine comprises lifting motor, chain, vertical slide rail and is located at the slide block that described vertical slide rail does not have, described chain is connected with slide block, drive slide block to move up and down in vertical slide rail, described slide block is provided with support bar, and the top of described support bar is connected with pressure pin.
4. continuous plastic lining composite steel pipe production equipment according to claim 1, is characterized in that: described heating furnace comprises body of heater, combustion chamber and air channel.
5. continuous plastic lining composite steel pipe production equipment according to claim 1, is characterized in that: described the second cyclic conveyor structure front end is provided with unlatching shifting block, and rear end is provided with closes shifting block; Suppress valve and touch to open after shifting block and trigger and suppress valve work, suppress valve and touch to close to trigger after shifting block and suppress valve and quit work.
6. a continuous plastic lining composite steel pipe production technology, is characterized in that, comprises the following steps;
(1) first coating steel pipe inside pipe wall is carried out to pretreatment;
(2) plastic liner is drawn in steel pipe, and stretch out outside steel pipe at the two ends of plastic liner;
(3) steel pipe that contains plastic liner is heated, make the temperature of steel pipe reach 150 DEG C～180 DEG C;
(4) by the one section of plastic liner flange backward stretching out outside steel pipe, make its parcel steel pipe, steel pipe nozzle is carried out to bound edge;
(5) fill compressed air to 0.5 ~ 1.0MPa at the two ends of steel pipe, plastic liner is expanded, be attached to steel pipe inner wall;
(6) steel tube surface is carried out to spraying cooling.
7. continuous plastic lining composite steel pipe production technology according to claim 6, is characterized in that: the heat time of described steel pipe is 18 ~ 20 minutes.
8. continuous plastic lining composite steel pipe production technology according to claim 6, is characterized in that: when carrying out pressurising in steel pipe, need to keep steel pipe internal pressure 5 ~ 10 minutes.
9. continuous plastic lining composite steel pipe production technology according to claim 6, is characterized in that: to the steel pipe chilling spray time be 3 ~ 6 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410196997.2A CN103950185B (en) | 2014-05-12 | 2014-05-12 | Plastic lining composite steel pipe production technology and equipment continuously |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410196997.2A CN103950185B (en) | 2014-05-12 | 2014-05-12 | Plastic lining composite steel pipe production technology and equipment continuously |
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| CN103950185A true CN103950185A (en) | 2014-07-30 |
| CN103950185B CN103950185B (en) | 2016-05-11 |
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| CN201410196997.2A Active CN103950185B (en) | 2014-05-12 | 2014-05-12 | Plastic lining composite steel pipe production technology and equipment continuously |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107187015A (en) * | 2017-06-01 | 2017-09-22 | 天津友发钢管集团股份有限公司 | A kind of steelplastic pipe superaudio compounding machine |
| CN108746223A (en) * | 2018-08-23 | 2018-11-06 | 湖州华特不锈钢管制造有限公司 | A kind of steel pipe water cooling plant |
| CN112246571A (en) * | 2019-07-06 | 2021-01-22 | 石河子大学 | Internal induction heating production line of plastic-lined steel pipe |
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| CN1305881A (en) * | 2001-02-26 | 2001-08-01 | 广州祥基金属制品有限公司 | Technology for manufacturing steel pipe with plastic liner |
| CN1327913A (en) * | 2001-07-12 | 2001-12-26 | 吴爱国 | Technology for forming internal plastic layer of composite steel-plastic pipe |
| CN1367075A (en) * | 2002-02-05 | 2002-09-04 | 揭东经济开发试验区泰丰侨金属制品有限公司 | Method for manufacturing steel-plastic composite pipe with zinc plated outside and polyethylene lined inside |
| CN101725774A (en) * | 2009-12-17 | 2010-06-09 | 河北金菱管业股份有限公司 | Mine wear-resistant composite metal plastic pipe, special preparation equipment thereof and preparation method thereof |
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2014
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305881A (en) * | 2001-02-26 | 2001-08-01 | 广州祥基金属制品有限公司 | Technology for manufacturing steel pipe with plastic liner |
| CN1327913A (en) * | 2001-07-12 | 2001-12-26 | 吴爱国 | Technology for forming internal plastic layer of composite steel-plastic pipe |
| CN1367075A (en) * | 2002-02-05 | 2002-09-04 | 揭东经济开发试验区泰丰侨金属制品有限公司 | Method for manufacturing steel-plastic composite pipe with zinc plated outside and polyethylene lined inside |
| CN101725774A (en) * | 2009-12-17 | 2010-06-09 | 河北金菱管业股份有限公司 | Mine wear-resistant composite metal plastic pipe, special preparation equipment thereof and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107187015A (en) * | 2017-06-01 | 2017-09-22 | 天津友发钢管集团股份有限公司 | A kind of steelplastic pipe superaudio compounding machine |
| CN108746223A (en) * | 2018-08-23 | 2018-11-06 | 湖州华特不锈钢管制造有限公司 | A kind of steel pipe water cooling plant |
| CN112246571A (en) * | 2019-07-06 | 2021-01-22 | 石河子大学 | Internal induction heating production line of plastic-lined steel pipe |
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| CN103950185B (en) | 2016-05-11 |
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