Large-diameter steel pipe plastic-coated whirligig
Technical field
The utility model is related to steel pipe coating equipment technical field, more particularly, to a kind of steel pipe application whirligig.
Background technology
Inside and outside plastic-coated steel be steel pipe walls melt and dissolved layer of polyethylene (PE) resin, ethylene-acrylic acid copolymer (EAA),
The organic matters such as epoxy (EP) powder, nonpoisonous polypropylene (PP) or non-toxic polyvinyl chloride (PVC) and the composite steel-plastic tubing that constitutes,
Plastic-coated steel not only have the advantages that steel pipe high intensity, easily connect, flow impact resistant, also overcome steel pipe meet water perishable,
Pollution, fouling and plastic tube intensity is high, fire-fighting poor performance the shortcomings of.
Large-diameter steel pipe generally refers to the steel pipe in 300mm~2400mm for the nozzle diameter, can need coating according to different
The plastic coating of the various different performances such as polyvinyl chloride (PVC), polyethylene (PE), epoxy resin (EPOZY).To large-diameter steel pipe
Carry out plastic-coated, the transporting resistance of steel pipe can be reduced, improve flow and transfer efficiency, reduce discharge pressure loss.Heavy caliber applies
Steel pipe is widely used in the engineering fields such as running water, natural gas, oil, chemical industry, medicine, communication, electric power, ocean.
When carrying out inside and outside plastic-coated to large-diameter steel pipe, need to make steel pipe rotate so that plastic-coated is uniform using plant equipment, existing
Some plant equipment driving steel pipe to rotate, in the form of active roller and passive roller combine, enter rolling after coating material melt
When between wheel and steel pipe, easily there is the phenomenon that steel pipe skids, impact plastic-coated effect.
Utility model content
Technical problem to be solved in the utility model is:A kind of steel pipe application whirligig is provided, which solves
The technical problem that large-diameter steel pipe skids when carrying out inside and outside plastic-coated with play vertically.
For solving above-mentioned technical problem, the technical solution of the utility model is:A kind of large-diameter steel pipe plastic-coated whirligig,
Including support base, support base is rotatablely equipped with least two rollers being arranged side by side, and at least one roller is by motor-driven
Driving rolls, the outer peripheral face of roller is provided with anti-slop serrations, is provided with the groove accommodating plastic powders between adjacent anti-slop serrations.
As a kind of improved mode, the outer peripheral face of roller is taper seat.
As a kind of improved mode, roller has two, is driving rolls.
As a kind of improved mode, support base includes a base and two roller mount, and roller mount is slideably positioned in bottom
Seat, each roller mount is rotatablely equipped with a roller;Base rotation is provided with Bidirectional-screw, and Bidirectional-screw is provided with handwheel, double
There is oppositely oriented two nut to screw mandrel rotation set, each nut is fixedly connected with a roller mount.
As a kind of improved mode, roller has three, and a roller is that driving rolls is centrally located, two other
Roller is the both sides that return idler is located at driving rolls respectively.
Using the technique effect acquired by technique scheme it is:
The outer peripheral face of roller is provided with anti-slop serrations, is provided with the groove accommodating plastic powders between anti-slop serrations, and steel pipe is in plastic-coated, warm
Spend typically at 280 DEG C~320 DEG C about, when steel pipe and roller contact, the very stick-slip of the plastic powders on outer surface of steel tube, roller
Groove between anti-slop serrations can accommodate these plastic powders, thus playing anti-skidding effect.
Outer peripheral face due to roller is set to taper seat, and steel pipe is positioned on taper seat, the axial direction suffered by steel pipe two ends
Component can prevent steel pipe play vertically, meanwhile, the approximate linear contact lay of the contact with steel pipe for the roller, contact area is little, on steel pipe
The destruction of plastic powders is little, easily repairs.
It is existing due to the skidding between steel pipe and roller during plastic-coated by the way of Dual Drive, can be prevented effectively from
As.
Because roller mount is connected on two-way leading screw by oppositely oriented nut, Bidirectional-screw is made to turn by rotation hand wheel
Move and can adjust the distance between two rollers, to be adapted to the steel pipe of different bores.
Because the both sides of a driving rolls are provided with a return idler, two steel pipes treating plastic-coated rest in one respectively
Between individual return idler and driving rolls, two can be simultaneously driven to treat that plastic-coated steel rotates using a driving rolls.
Brief description
Fig. 1 is the structural representation of plastic-coated equipment;
Fig. 2 is the side structure schematic diagram of plastic-coated equipment;
Fig. 3 is the enlarged drawing in C portion in Fig. 2;
Fig. 4 is the structural representation of interior device;
Fig. 5 is the top view of Fig. 4;
Fig. 6 is the side structure schematic diagram of embodiment one;
Fig. 7 is the structural representation of embodiment one;
Fig. 8 is the structural representation of embodiment two;
In figure, 1- steel pipe rotary device, 101- base, 102- roller mount, 103- driving rolls, 104- motor, 105- spiral shell
Mother, 106- handwheel, 107- Bidirectional-screw, 109- return idler, 110- anti-slop serrations, 2- internal plastic coating device, 21- stirring axle, 22- turns over
Hopper, 23- cylinder, 24- tooth bar, 25- gear, 40- powder groove, 402- deflector, 403- gate, 404- cylinder, 405- vibrates
Device, 501- gathers materials slide carriage, 502- conveyer belt, 6- cat ladder, 7- walker, 8- guide rail, 9- steel pipe, 10- underframe.
Specific embodiment
With reference to the accompanying drawings and examples the utility model is further illustrated.
Embodiment one
In conjunction with shown in Fig. 1, Fig. 2, Fig. 6 and Fig. 7, a kind of large-diameter steel pipe plastic-coated equipment, including underframe 10, underframe 10 sets
It is equipped with steel pipe rotary device 1.Steel pipe rotary device 1 has two groups, for the two ends of support steel pipe 9, each group of steel pipe rotary device 1
Including support base, support base is installed on underframe 10, and support base includes a base 101 and two roller mount 102, roller mount 102
It is slideably positioned in base 101, each roller mount 102 is rotatablely equipped with a roller.Base 101 is rotatablely equipped with Bidirectional-screw
107, Bidirectional-screw 107 is provided with handwheel 106, and Bidirectional-screw 107 rotation set has oppositely oriented two nut 105, each nut
105 are fixedly connected with a roller mount 102.The distance between left wheel and right roller can be adjusted by rotation hand wheel 106, with
It is adapted to the steel pipe 9 of different bores.
Support base is rotatablely equipped with two rollers being arranged side by side, and the outer peripheral face of roller is provided with anti-slop serrations 110, and adjacent is anti-
It is provided with the groove accommodating plastic powders between slip teeth 110.Steel pipe 9 in plastic-coated, temperature typically at 280 DEG C~320 DEG C about, steel pipe
9 with roller contact when, the plastic powders very stick-slip on steel pipe 9 outer surface, the groove between roller anti-slop serrations 110 can accommodate this
A little plastic powders, thus play anti-skidding effect.
The outer peripheral face of roller is taper seat.The effect of the axial thrust load of steel pipe 9 can prevent steel pipe 9 play vertically, meanwhile,
Roller linear contact lay approximate with the contact of steel pipe 9, contact area is little, little to the destruction of plastic powders on steel pipe 9, easily repairs.Rolling
Wheel has two, is driving rolls 103.Steel pipe 9 and rolling during plastic-coated can be prevented effectively from by the way of Dual Drive
Skidding between wheel.
Support base is rotatablely equipped with least two rollers being arranged side by side, and at least one roller is driven by motor 104
Driving rolls 103.In the present embodiment, roller has two, is driving rolls 103, by the way of Dual Drive, can effectively keep away
Exempt from the skidding between steel pipe 9 and roller during plastic-coated.
The outer peripheral face of roller is provided with anti-slop serrations 110, is provided with the groove accommodating plastic powders, steel between adjacent anti-slop serrations 110
The outer peripheral face of the roller of pipe whirligig 1 is provided with anti-slop serrations 110, is provided with the groove accommodating plastic powders, steel pipe between anti-slop serrations 110
9 in plastic-coated, temperature typically at 280 DEG C~320 DEG C about, when steel pipe 9 and roller contact, the molding powder on steel pipe 9 outer surface
End very stick-slip, the groove between roller anti-slop serrations 110 can accommodate these plastic powders, thus playing anti-skidding effect.
The outer peripheral face of the roller of steel pipe rotary device 1 is set to taper seat, and steel pipe 9 is positioned on taper seat, steel pipe 9 institute
The axial thrust load being subject to can prevent steel pipe 9 play vertically, meanwhile, roller linear contact lay approximate with the contact of steel pipe 9, contact area
Little, little to the destruction of plastic powders on steel pipe 9, easily repair.
The both sides of steel pipe rotary device 1 are respectively arranged with powder and reclaim conveyor-belt apparatus, Powder Recovery conveyor-belt apparatus
The top of conveyer belt is provided with the slide carriage 501 that gathers materials, and fails the plastic-coated powder being attached on steel pipe 9 along slide carriage 501 landing of gathering materials
Reclaim conveyor-belt apparatus to powder.Reclaim the conveyer belt 502 that conveyor-belt apparatus include being driven by motor, can be to plastic-coated powder
Reclaimed, improved the utilization rate of powder plastic-coated powder.
In conjunction with shown in Fig. 1 to Fig. 3, guide rail 8 is be arranged in parallel with the axis of rotation of 1 support steel pipe 9 of steel pipe rotary device, leads
The walker 7 being driven by power set is provided with rail 8.Walker is provided with cat ladder 6.Walker 7 be provided with outer plastic-coated device and
Internal plastic coating device 2, internal plastic coating device 2 is located at the lower section of outer plastic-coated device, and outer plastic-coated device includes powder groove 40, and powder groove 40 is even
It is connected to walker 7, at the feed opening of powder groove 40, be provided with the flashboard being driven by cylinder 404.It is provided with deflector below flashboard
402.The feed opening of powder groove 40 deviates the vertical guide being located by the axis of rotation of support steel pipe 9, and steel pipe 9 support connects plastic powders side
It is rotated up, in opposite direction with the falling direction of plastic powders, painting molding powder machine and the outer peripheral face of steel pipe 9 can be made to be fully contacted.
Powder groove 40 is provided with vibrator 405, and vibrator makes powder groove 40 vibrate, and makes the feed opening from powder groove 40 bottom for the plastic-coated powder equal
Even drench to the steel pipe 9 treating plastic-coated.
Jointly shown in conjunction with Fig. 4 and Fig. 5, internal plastic coating device 2 includes stirring axle 21, and stirring axle 21 rotates and is installed on walker
7, one end of stirring axle 21 is connected with turnover driving mechanism, and turnover driving mechanism includes gear 25, and gear 25 is connected to stirring axle
21, tooth bar 24 is slidably mounted on walker 7 and is engaged with gear 25.Cylinder 23 is connected between tooth bar 24 and walker 7.Stirring
The other end of axle 21 is fixedly connected with the turning hopper 22 that can axially stretch in steel pipe 9.It is corresponding that turning hopper 22 is located at powder groove 40
Lower section, can add plastic-coated powder by opening the gate 403 of powder groove 40 bottom into turning hopper 22.Overturn using turning hopper 22
The dusting of powder feeding and powder groove 40 carries out inside and outside plastic-coated to the steel pipe 9 of rotation, improves the application speed of steel pipe 9, and makes steel pipe 9
Coating uniform.
Using method of the present utility model is:
1) steel pipe 9 being preheated to plastic-coated temperature is positioned on the roller of whirligig;
2) steel pipe 9 is driven to rotate by whirligig;
3) the powder groove 40 being loaded with plastic powders is delivered to the working position of the outside top of steel pipe 9, molding powder will be loaded with
The turning hopper 22 at end is projecting axially into inside steel pipe 9 to working position;
4) open the flashboard of powder groove 40, make plastic powders spread steel pipe 9 outer peripheral face from the material leakage gap of strip.Logical
Cross and control the opening time of flashboard to control powder groove 40 to spread the amount of plastic powders to steel pipe 9.Spread and close to the amount of regulation
Flashboard, makes top outside from steel pipe 9 for the powder groove 40 remove;
5) so that turning hopper 22 is overturn, the plastic powders in turning hopper 22 are turned over the inner peripheral surface being spread to steel pipe 9, turns over after the completion of spreading
Turning hopper 22 upset return is simultaneously return;
6) steel pipe 9 is made persistently to rotate, until plastic powders are in the inner and outer circumferential surfaces continuous coating of smooth and level formation of steel pipe 9;
7) steel pipe 9 is sent into solidification or spontaneous curing at normal temperatures in curing oven.
Embodiment two
As shown in figure 8, roller has three, three rollers all rotate and are installed on support base, and a roller is driving rolls
103 is centrally located, and two other roller is the both sides that return idler 109 is located at driving rolls 103 respectively.Driving rolls
103 both sides place a steel pipe 9 treating plastic-coated respectively, and two steel pipes 9 treating plastic-coated rest in a return idler 109 respectively
And driving rolls 103 between, this structure can simultaneously drive two rotations treating plastic-coated steel 9 using a driving rolls 103.
Above example be the utility model preferred embodiment, not in order to limit the utility model, every in this reality
Within new spirit and principle, any modification, equivalent substitution and improvement made etc., should be included in of the present utility model
In protection domain.