CN105880094A - Continuous spraying line for spraying interior and exterior of metal pipe and spraying method of continuous spraying line - Google Patents
Continuous spraying line for spraying interior and exterior of metal pipe and spraying method of continuous spraying line Download PDFInfo
- Publication number
- CN105880094A CN105880094A CN201610378688.6A CN201610378688A CN105880094A CN 105880094 A CN105880094 A CN 105880094A CN 201610378688 A CN201610378688 A CN 201610378688A CN 105880094 A CN105880094 A CN 105880094A
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- China
- Prior art keywords
- spray
- interior
- pipe
- metal tube
- interior spray
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
- B05C19/04—Apparatus specially adapted for applying particulate materials to surfaces the particulate material being projected, poured or allowed to flow onto the surface of the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0218—Pretreatment, e.g. heating the substrate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
Abstract
The invention discloses a continuous spraying line for spraying the interior and exterior of a metal pipe. The continuous spraying line comprises a track (6), a coating region pipe conveying device (2) and an exterior coating device (4) which are arranged adjacently from right to left in the same straight line; a heating device (5) is arranged on the coating region pipe conveying device (2); the coating region pipe conveying device (2) comprises an upstream pipe conveying device (2.1) and a downstream pipe conveying device (2.2); the heating device (5) comprises a first heating device (5.1) and a second heating device (5.2); when an interior spraying car moves to the leftmost end of the track (6), a nozzle of an interior spraying gun reaches an interior spraying continuing position (A) between the first heating device and the second heating device; a 10mm to 20mm position at the left side of the first heating device (5.1) is an interior spraying stop and fast reversion position (B); when the interior spraying car moves to a position where the interior spraying gun has a certain distance from the rightmost end of the upstream pipe conveying device (2.1), the position where the front end part of the interior spraying gun is positioned is an upper pipe abdicating position (C). According to the continuous spraying line for spraying the interior and exterior of the metal pipe, the energy consumed by one time of heating is continuous, the interior and the exterior are coated simultaneously, continuous automatic production is also realized, and the production efficiency is high.
Description
Technical field
The invention belongs to metal tube paint-on technique field, be specifically related to continuous spray line and spraying method thereof inside and outside a kind of metal tube.
Background technology
With powdery paints as anticorrosion coating on pipeline, it is the effective ways of pipeline corrosion protection.Compared with solvent based liquid coating, powder is coated with
The advantage of material is more, and first powder is 100% solid, solvent-free volatilization, it is simple to shipping storage；Secondly, powder coats by setting
Counting suitable recovery system can make the utilization rate of coating reach 95-99%；3rd, powder coats and need not priming paint, one-pass film-forming,
One powdery paints is equivalent to multiple tracks solvent based coating application；4th, powder coating is strong with metal adhesion, the anti-corrosive properties of coating
Solvent based coating can be exceeded with physical property, superior in quality.In order to synthetic resin powder is coated to metal tube inner face, gold
Belong to pipe and be heated to uniform temperature (such as 250-300 DEG C), make metal tube pivot about with its axis, advance forward simultaneously,
Powder stream is ejected into metal tube inner face by specific injection apparatus until pipe end, and synthetic resin powder deposition to inner face forms coating
Film.In order to synthetic resin powder is coated to outside metal tube, synthetic resin powder is fallen on tube outside from showering case, synthesis
Toner is through fusing, levelling and is solidificated in outer surface of metal pipe formation coat film.
In prior art, anticorrosive metal pipe moulded by TPEP steel, and T is English word Three initial, represents three layers, and PE refers to polyethylene,
EP finger ring epoxy resins, the external anti-corrosion layer of metal tube uses 3PE anticorrosion structure, and inner wall anti-corrosive uses thermal spraying epoxy powder group
Unify the non-corrosive metal (NCM) form of tubes of new generation of composition, be the up-to-date state-of-the-art novel products of current buried long-distance transport pipes.Outer wall
3PE anticorrosion refers to that outer wall uses bottom hot melt knot epoxy powder, the winding of intermediate layer hot melt adhesive, outer layer polyethylene to be wound around
And forming the anticorrosive coat of three-decker, inwall uses spray epoxy powder to heated inner wall of metal tube, is then passed through melting
Change, levelling and solidification three phases, ultimately form the entirety of steel plastic compount, is called for short TPEP steel-plastics composite pipe.Steel-plastics composite pipe melts
Closed metal tube and the advantage of plastic tube and abandoned the shortcoming of each of which, and become that building engineering field is favourably welcome new
Type multiple tube.
Most manufacturer uses after first having produced outside 3PE, and last production line carries out inwall epoxy resin powder again
The production plastic-coated at end, also has plenty of and has first produced inner wall anti-corrosive, then concentration carries out outer wall anticorrosion；Although these techniques can be real
The product of the most final TPEP steel-plastics composite pipe, but but lose more than gain on cost and production efficiency, especially create gold
Belong to pipe secondary to reach the standard grade the wasting of resources of Repeat-heating.
Also having producer to use the production model of a pipe one cycling start, after a metal tube of i.e. reaching the standard grade, interior spraying equipment is in place, then anti-with outer
Corruption is actuated for producing simultaneously, and a root knot bundle, equipment stops the most simultaneously, a metal tube of reaching the standard grade the most again, re-starts and opens car
Produce, repeat operation, also can realize the production of the product of TPEP steel-plastics composite pipe, but not only inefficiency but also make
Become raw-material waste.
It is thus desirable to continuous spray line inside and outside a kind of metal tube of design, outer surface can be coated, again can coat internal surfaces, can do simultaneously
To the continuous spray of many metal tubes, not only efficiency is high, and once heats, and this is a difficult problem for industry really.
Summary of the invention
The problem existed for above-mentioned prior art, the present invention provides continuous spray line and painting method thereof inside and outside a kind of metal tube.
The present invention is achieved in that continuous spray line inside and outside a kind of metal tube, including order phase the most from right to left
The track of adjacent setting, coating area pipe-conveying device, outer coating device, cooling zone pipe-conveying device, in the right part of coating area pipe-conveying device
It is vertically arranged pipe track, is vertically arranged down tube track in the left part of coating area pipe-conveying device, be provided with interior spray car in orbit,
Being additionally provided with heater on the pipe-conveying device of coating area, described coating area pipe-conveying device includes upstream pipe-conveying device, downstream pipe-conveying device,
Described heater includes first heater and secondary heating mechanism, and first heater is arranged on upstream pipe-conveying device and downstream
Between pipe-conveying device, secondary heating mechanism is arranged between downstream pipe-conveying device and outer coating device；
Described interior spray car includes that interior spray gun and barral of a gun, described interior spray gun are fixedly connected on barral of a gun；Interior spray gun front end is provided with nozzle；
Described interior spray car moves to the nozzle of interior spray gun during track high order end and arrives between first heater and secondary heating mechanism
Interior spray splice locations, stops and rewind position for interior spray at 5～10mm on the left of first heater, moves to interior spray gun at interior spray car
When conceding upstream pipe-conveying device low order end certain distance, the position, leading section of interior spray gun is that upper pipe is by out position.
Further, described upstream pipe-conveying device switches between the two states, a kind of for autorotation of normally advancing, one
For accelerating advance autorotation.
Further, described outer coating device includes thermosetting powders showering case.
Further, described outer coating device includes PE polyethylene film extrusion wind, the gluing that order is disposed adjacent from right to left
Agent film extrusion wind and thermosetting powders showering case, equipped with EP resin-oatmeal in described thermosetting powders showering case
End.
Further, at upper pipe by out position, the rightmost side of distance upstream, position, the leading section pipe-conveying device of interior spray gun
400～1000mm.
Further, the length of described interior spray gun is stopped to interior spray and distance between rewind position more than interior spray splice locations.
Inside and outside a kind of described metal tube, the continuous spray method of continuous spray line, comprises the steps:
1) first metal tube is reached the standard grade to start and is produced, and metal tube sprays car in advancing simultaneously and accelerates follow-up；
Starting coating area pipe-conveying device, first metal tube is delivered on the pipe-conveying device of upstream from upper pipe track, and in starting, spray car adds simultaneously
Speed follow-up；Start first heater and metal tube is heated by secondary heating mechanism；
2) in, at spray splice locations, in first metal tube, spraying starts construction, and interior spray car at the uniform velocity retreats simultaneously；
In when spraying at splice locations in metal tube front end arrives while, spray gun front end nozzle also arrives at interior spray splice locations, spray in starting
Rifle dusts, and interior spray car at the uniform velocity retreats；
3) outer application starts construction, interior spray car at the uniform velocity retreat to interior spray stop and rewind position stop in being coated with and accelerate to retreat to pipe and concede simultaneously
Position；
Stop and rewind position when interior spray gun falls back on interior spray, trigger following action, action 1.: stop in spray car spray gun ejection powder；
Action is 2.: to upper pipe, interior spray car fast fallback is conceded position；
When metal tube front end arrives outer coating device, start outer coating device and start construction；
4) second metal tube is reached the standard grade and is chased after the interior spray car acceleration follow-up of front pipe to interior spray splice locations；
Second metal tube is delivered on the pipe-conveying device of upstream from upper pipe track, now first metal tube already out upstream pipe-conveying device,
Upstream pipe-conveying device switches to acceleration advance autorotation, until the end of second metal tube props up the end of first metal tube
Switch to autorotation of normally advancing again；Meanwhile, interior spray car accelerates follow-up, when interior spray car accelerates at follow-up extremely interior spray splice locations
Time, the endoporus of first metal tube plastic-coated position just arrives at interior spray splice locations；
5) just it catch up with in pipe plastic-coated position at spray splice locations in, restart internal plastic coating；
Starting internal plastic coating at interior spray splice locations, start interior spraying application from plastic-coated position, interior spray car at the uniform velocity retreats simultaneously；
6) at the uniform velocity retreat to interior spray while spray car plastic-coated in stop and rewind position, be coated with and accelerate to retreat supreme pipe in stopping and conceding position
Put place；
Stop and rewind position when interior spray gun falls back on interior spray, trigger following action, action 1.: stop in spray car spray gun ejection powder
End；Action is 2.: to upper pipe, interior spray car fast fallback is conceded position；
7) next root metal tube is reached the standard grade, and next root metal tube is interior while chasing after front pipe to be sprayed at car acceleration follow-up extremely interior spray splice locations；
Next root metal tube is delivered on the pipe-conveying device of upstream from upper pipe track, now goes up a metal tube already out upstream pipe-conveying device,
Upstream pipe-conveying device switches to acceleration advance autorotation, until the front end of next root metal tube props up the end of a metal tube
Switch to autorotation of normally advancing again；Meanwhile, accelerate at follow-up extremely interior spray splice locations when interior spray car；
Repeat step 5)～7).
Further, a piece metal tube required time of spraying can be calculated according to metal tube length and coating layer thickness, continue according to interior spray
Position is stopped to interior spray and the distance of rewind position is converted into the interior spraying construction time, the speed of coating area pipe-conveying device by interior spray car from interior
Spray splice locations is at the uniform velocity moved back car and is stopped to interior spray and the distance of rewind position determined divided by the interior spraying construction time.
Further, in interior spray gun front end nozzle also arrives at and starts at interior spray splice locations, spray gun dusts and props up interior spray car for track left end
The anterior triggering switch arranged, triggers switch activated interior spray gun and dusts.
Further, interior spray gun dusts beginning, then, when starting timer, terminate during timer, then in spray gun dust stopping,
It it is the interior spraying construction time between the timing of timer institute.
Further, a described upper metal tube the position of plastic-coated arrive in spray splice locations required time equal to interior spray car rewind,
Upper pipe, chase after pipe simultaneously in total time of spray car F.F..
Inside and outside described metal tube, continuous spray line achieves metal tube by techniques below essence and coats being difficult to of also existing continuously and solve
Technical problem: can coat outer surface, again can coat internal surfaces, the inside and outside continuous spray of many metal tubes can be accomplished simultaneously.
(1) the interspersed upper pipe of interior spraying process chases after plumber's sequence, it is ensured that metal tube can interior spray, and ensures the newest upper gold simultaneously
Belong to pipe；In utilizing spray car pace in orbit can the feature that changes of straight line, spray after certain distance fast in upper metal tube
Retreat to pipe by out position C at, pipe action on next root metal tube simultaneously, upstream pipe-conveying device accelerate chase after before pipe until front end supports
Live in the end of a metal tube.
(2) in, spray splice locations A, interior spray stop and rewind position B and upper pipe are by out position C, coordinate a time relation of equal quantity:
1. in going up the position of the plastic-coated arrival of a metal tube, spray splice locations A required time is equal to interior spray car rewind, upper pipe, chases after
Pipe sprays the total time of car F.F. in simultaneously；
Accomplish that metal tube can interior spray, ensured the metal tube that insert continually spraying coating line is new simultaneously；
(3) spraying interval operation in the continuous operation of outer showering coordinates, the premise of the two be need to coordinate after pipe chase after pipe, rear pipe is only
Chasing after upper front tube just can make interior spraying and trypsin method can be connected smoothly between front and rear tube.
Above-mentioned upper pipe, the rewind F.F. chasing after pipe and inside and outside plastic-coated and interior spray car are close fit, together constitute consuming and once add
The energy of the heat spraying coating line that inside and outside plastic-coated simultaneously and energy serialization produce automatically continuously, production efficiency is high, and production cost reduces accordingly,
The market competitiveness is promoted for product.
Accompanying drawing explanation
Fig. 1 is the top view of continuous spray line inside and outside metal tube of the present invention.
Fig. 2 is the front view of continuous spray line inside and outside metal tube of the present invention.
Fig. 3 is the continuous spray method schematic diagram of continuous spray line inside and outside metal tube of the present invention.
A) first metal tube is reached the standard grade to start and is produced, and metal tube sprays car and accelerates follow-up schematic diagram in advancing simultaneously；
B) in, at spray splice locations A, in first metal tube, spraying starts construction, and interior spray car at the uniform velocity retreats schematic diagram simultaneously；
C) external anti-corrosion layer 3PE spraying start construction, interior spray car at the uniform velocity retreat to interior spray stop and rewind position B stop in painting accelerate simultaneously
Retreat to pipe by out position C schematic diagram；
D) second metal tube is reached the standard grade and is chased after the interior spray car acceleration follow-up of front pipe to interior spray splice locations A schematic diagram；
E) just it catch up with in pipe plastic-coated position at spray splice locations A in, restart internal plastic coating schematic diagram；
F) at the uniform velocity retreat to interior spray while being coated with car plastic-coated in stop and at the B of rewind position, be coated with and accelerate to retreat supreme pipe in stopping and conceding
Schematic diagram at the C of position；
G) next root metal tube is reached the standard grade, and next root metal tube is interior while chasing after front pipe to be sprayed at car acceleration follow-up extremely interior spray splice locations A
Schematic diagram；
Reference in above-mentioned figure:
1, upper pipe track, 2, coating area pipe-conveying device, 3, down tube track, 4, outer coating device, 5 heaters, 6 tracks,
Spray cars in 7,8 plastic-coated position, spray gun in 9,10 barrals of a gun
2.1 upstream pipe-conveying devices, 2.2 downstream pipe-conveying devices, 2.3 cooling zone pipe-conveying devices
4.1PE polyethylene powders showering case, 4.2 adhesive powder showering casees, 4.3 thermosetting powders showering casees
5.1 first heaters, 5.2 secondary heating mechanisms
In spray splice locations, B, spray stops and rewind position in A, and the upper pipe of C allows out position
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but be not limited to the scope of the present invention.
With reference to shown in Fig. 1-3, continuous spray line inside and outside a kind of metal tube, order is disposed adjacent the most from right to left
Track 6, coating area pipe-conveying device 2, outer coating device 4, cooling zone pipe-conveying device 3, in the right part of coating area pipe-conveying device 2
It is vertically arranged pipe track 1, is vertically arranged down tube track 3 in the left part of coating area pipe-conveying device 2, in track 6 is provided with
Spray car 7, coating area pipe-conveying device 2 is additionally provided with heater 5；Described interior spray car 7 includes interior spray gun 9 and barral of a gun 10, institute
Stating interior spray gun 9 to be fixedly connected on barral of a gun 10, interior spray gun front end is provided with nozzle；
Described coating area pipe-conveying device 2 includes that upstream pipe-conveying device 2.1, downstream pipe-conveying device 2.2, described heater 5 include
First heater 5.1 and secondary heating mechanism 5.2, first heater 5.1 is arranged on upstream pipe-conveying device 2.1 and downstream
Between pipe-conveying device 2.2, secondary heating mechanism 5.2 is arranged between downstream pipe-conveying device 2.2 and outer coating device 4；
Being provided with outer coating device 4 between cooling zone pipe-conveying device 2.3 and downstream pipe-conveying device 2.2, described outer coating device 4 includes
Thermosetting powders showering case 4.3；For the outer painting of TPEP steel-plastics composite pipe, described outer coating device 4 wraps
Include order is disposed adjacent from right to left PE polyethylene film extrusion wind 4.1, adhesive film extrusion wind 4.2 and heat
Thermosetting resin powder showering case 4.3；Equipped with EP toner in described thermosetting powders showering case 4.3.
Described upstream pipe-conveying device 2.1 has two kinds to rotate from turning feed status, and it relies on into gradient configuration and adjusts actively rubber tire control
The pitch size i.e. pace of the spiral of system, controls rotational velocity by the rotating speed of active rubber tire, and general rotational velocity is with constant
Speed operates, and pace then has two states, and a kind of is autorotation of normally advancing, a kind of for accelerating advance autorotation.
In the present embodiment, it is preferable that described metal tube joint length 12000mm, interior spray gun length 17600mm, described interior painting is made
Industry distance L1It is preferably 3300mm.
The centrage of the metal tube being rotationally advancing on the centrage of the spray gun of described interior spray car 7 and described coating area pipe-conveying device 2
Position substantially overlaps；
Inside and outside metal tube, continuous spray line also includes controlling device, controls device and controls the action of all each devices.
The continuous spray method of continuous spray line inside and outside described metal tube,
8) first metal tube is reached the standard grade to start and is produced, and metal tube sprays car in advancing simultaneously and accelerates follow-up.
As shown in Fig. 3 a), starting coating area pipe-conveying device 2, first metal tube is delivered to upstream from upper pipe track 1 and is sent pipe to fill
Putting on 2.1, first metal tube rotates with a constant speed straight ahead, spray car 7, interior spray car 7 in starting simultaneously
Accelerate to advance at interior spraying track 4.Meanwhile, first heater 2.1 and secondary heating mechanism 2.2 are started to metal tube
Heat.
9) in, at spray splice locations A, in first metal tube, spraying starts construction, and interior spray car at the uniform velocity retreats simultaneously.
As shown in Fig. 3 b), when metal tube front end arrive A place while in spray gun front end gun slot also arrive at interior spray splice locations A
Place, the spray gun ejection powder spraying car 7 in controlling device startup carries out interior spraying application to inner wall of metal tube, and interior spray car 7 is even
Speed retreats, and the timer in interior spray car starts timing.
10) outer application starts construction, interior spray car at the uniform velocity retreat to interior spray stop and rewind position B stop in being coated with and accelerate to retreat to pipe and allow simultaneously
Out position C.
As shown in Fig. 3 c), arriving when timer, interior spray gun falls back on interior spray and stops and at the B of rewind position, triggers and controls
Device performs following action simultaneously, action 1.: stop in spray car 7 spray gun ejection powder；Action is 2.: quickly returned by interior spray car
Fall back on pipe by out position C at.When the front end of metal tube is positioned at below thermosetting powders showering case, start outer coating device 4,
Outer application starts construction；
Preferably, outer application is external anti-corrosion layer 3PE application；Refer to when metal tube end arrives thermosetting powders showering case,
Triggering EP position sensor, EP position sensor starts thermosetting powders showering case and starts to fall EP powder continuously；Work as gold
When belonging to tube end arrival adhesive film extrusion wind, triggering adhesive position sensor, described adhesive position sensor opens
Dynamic adhesive film extrusion wind starts to extrude tacky film and extrudes and be wrapped on metal tube；Gather when metal tube leading section arrives PE
During vinyl film extrusion wind, triggering PE position sensor, described PE position sensor starts PE polyethylene film extrusion and is wound around
Device extrusion PE film is wrapped on metal tube.
11) second metal tube is reached the standard grade and is chased after the interior spray car acceleration follow-up of front pipe to interior spray splice locations A.
As shown in Fig. 3 d), second metal tube delivers to the upstream pipe-conveying device of coating area pipe-conveying device 2 from upper pipe track 1
On 2.1, now first metal tube already out upstream pipe-conveying device 2.1, upstream pipe-conveying device 2.1 switches to acceleration advance rotation
State, until the end that the end of second metal tube props up first metal tube switches to autorotation of normally advancing again；When interior
When spray car 7 accelerates at follow-up extremely interior spray splice locations A, in the endoporus of first metal tube plastic-coated position 8 just arrives, spray connects
At continuous position A；It is to say, the position of plastic-coated 8 of first metal tube proceeds to the time of interior spray splice locations A equal to interior
Spray car rewind, upper pipe, chase after the pipe interior total time spraying car F.F..
12) just it catch up with in pipe plastic-coated position 8 at spray splice locations A in, restart internal plastic coating.
As shown in Fig. 3 e), at interior spray splice locations A, the interior spray gun end-spray mouth of interior spray car arrives plastic-coated position 8 just,
Starting internal plastic coating, start interior spraying application from plastic-coated position 8, interior spray car at the uniform velocity retreats simultaneously, and the timer of interior spray car starts
Timing；
13) at the uniform velocity retreat to interior spray while being coated with car plastic-coated in stop and at the B of rewind position, be coated with and accelerate to retreat supreme pipe in stopping and conceding
At the C of position.
As shown in Fig. 3 f), arrive when timer, then in spray gun fall back on interior spray and stop and the B of rewind position at, trigger and control
Device processed performs following action simultaneously, action 1.: stop in spray car 7 spray gun ejection powder；Action is 2.: by quick for interior spray car
Return back to pipe by out position C at.
14) next root metal tube is reached the standard grade, and next root metal tube is interior spray car acceleration follow-up extremely interior spray splice locations A while chasing after front pipe
Place.
As shown in Fig. 3 g), next root metal tube delivers to the upstream pipe-conveying device 2.1 of coating area pipe-conveying device 2 from upper pipe track 1
On, now go up a metal tube already out upstream pipe-conveying device 2.1, upstream pipe-conveying device 2.1 switches to acceleration advance rotation shape
State, until the end that the front end of next root metal tube props up a metal tube switches to autorotation of normally advancing again；Meanwhile,
When interior spray car 7 accelerates at follow-up extremely interior spray splice locations A, in the endoporus of upper metal tube plastic-coated position 8 just arrives
At spray splice locations A；
Repeat step 5-7, i.e. achieve and expend a heat energy spraying that inside and outside plastic-coated simultaneously and energy serialization produce automatically continuously
Line, production efficiency is high, and production cost reduces accordingly, promotes the market competitiveness for product.
The continuous spray method of continuous spray line inside and outside described metal tube, interior spray splice locations A, interior spray stop and rewind position B and on
Pipe allows out position C how determine？First interior spray splice locations A is at first heater 2.1 and secondary heating mechanism
Between 2.2, it is that interior spray car moves to the position of interior spray gun front end arrival during track 6 high order end position.
The most key is that interior spray stops and the determination of rewind position B.Stop for interior spray at 5～10mm on the left of first heater 5.1
And rewind position (B).Interior spraying is at the uniform velocity moved back car from interior spray splice locations A and is stopped to interior spray and the distance of rewind position B is divided by required
Time TAB-insprayIt is exactly equal to the speed of 3PE trypsin method.It is to say, spray stops and after the B of rewind position in arriving, spray in stopping
Being coated with, this halt sprays the time T of splice locations A in interior spray stops and rewind position B arrivesBA-stoplineIt is also equal to TAB-inspray, and
Interior spray car rewind, upper pipe, chase after pipe, interior spray car accelerates to proceed to soon the time T of interior spray splice locations AcontinueAlso T it is exactly equal toAB-inspray。
Upper pipe must reserve upper pipe required separation distance by the spray gun front end that out position C is interior spray car, a metal tube length 12000mm,
Then must there be certain distance spray gun front end by distance low order end of metal tube on the upper pipe track that inspection is qualified, to ensure not interfere
Ground auto tube feeding.At upper pipe by out position C, the rightmost side of distance upstream, position, the leading section pipe-conveying device 2.1 of interior spray gun
400～1000mm.
Can be provided with touching switch on the left of interior spray car, interior spray car arrives track 6 high order end to be stopped, and triggers the switch activated interior spray of touching
Rifle dusts and the speed of application in addition at the uniform velocity retreats.Being provided with timer on interior spray car, this timer is through TAB-insprayIn after time
Correcting before spray gun and fall back on interior spray and stop and at the B of rewind position, this timer triggers stopping and dusting and rewind action.The right side of track 6
End is provided with brake, corrects at upper pipe by out position C, now brake when interior spray car arrives the right-hand member of track 6 before interior spray gun
Spray car in braking.Spray car in F.F. after the upper pipe time, until pursuing to spray splice locations A in interior spray gun front end arrives, now interior
Spray car is started by touch switch, dusts in starting again.
This just creates condition for automated production, say, that simply enter the length of a metal tube, piece metal tube of outer spray
Time, the speed of outer application determines, interior application at the uniform velocity astern speed, equal to the speed of outer application, thus just may be used by the distance of AB
Be converted into from interior spray splice locations A at the uniform velocity in spray move back car and stop to interior spray and the time T of rewind position BAB-inspray.Thus, first,
The pipe speed of at the uniform velocity sending of two pipe-conveying devices also determines.Interior spray car rewind, upper pipe, chase after pipe simultaneously in total time etc. of spray car F.F.
Interior spray splice locations A required time is arrived in plastic-coated position 8.Whole automatic production line just can coat by Automatic continuous, does
Arrive automatization's continuous spray that prosthetic controls, substantially increased production efficiency, saved manpower, reduce anti-corrosion of metal pipe
Production cost.
Claims (10)
1. a continuous spray line inside and outside metal tube, including the most from right to left order be disposed adjacent track (6),
Coating area pipe-conveying device (2), outer coating device (4), cooling zone pipe-conveying device (3), at the right-hand member of coating area pipe-conveying device (2)
Portion is vertically arranged pipe track (1), is vertically arranged down tube track (3) in the left part of coating area pipe-conveying device (2), in track (6)
It is provided with interior spray car (7), coating area pipe-conveying device (2) is additionally provided with heater (5), it is characterised in that
Described coating area pipe-conveying device (2) includes upstream pipe-conveying device (2.1), downstream pipe-conveying device (2.2), described in add hot charging
Putting (5) and include first heater (5.1) and secondary heating mechanism (5.2), first heater (5.1) is arranged on upstream
Between pipe-conveying device (2.1) and downstream pipe-conveying device (2.2), secondary heating mechanism (5.2) is arranged on downstream pipe-conveying device (2.2)
And between outer coating device (4)；
Described interior spray car includes that interior spray gun (9) and barral of a gun (10), described interior spray gun (9) are fixedly connected on barral of a gun (10),
Interior spray gun front end is provided with nozzle；
Described interior spray car move to the nozzle of interior spray gun during track (6) high order end arrive first heater and secondary heating mechanism it
Between interior spray splice locations (A), first heater (5.1) left side 5～10mm at stop and rewind position (B) for interior spray,
Interior spray car move to interior spray gun concede upstream pipe-conveying device (2.1) low order end certain distance time, the leading section institute of interior spray gun is in place
It is set to pipe by out position (C).
2. continuous spray line inside and outside a metal tube as claimed in claim 1, it is characterised in that described upstream pipe-conveying device
(2.1) switching between the two states, a kind of is autorotation of normally advancing, a kind of for accelerating advance autorotation.
3. continuous spray line inside and outside a metal tube as claimed in claim 1, it is characterised in that described outer coating device (4) includes
Thermosetting powders showering case (4.3).
4. continuous spray line inside and outside a metal tube as claimed in claim 1, it is characterised in that described outer coating device (4) includes
Order is disposed adjacent from right to left PE polyethylene film extrusion wind (4.1), adhesive film extrude wind (4.2)
With thermosetting powders showering case (4.3), equipped with EP toner in described thermosetting powders showering case (4.3).
5. continuous spray line inside and outside a metal tube as claimed in claim 1, it is characterised in that the length of described interior spray gun (9)
Stop more than interior spray splice locations (A) to interior spray and distance between rewind position (B).
6. the continuous spray method of continuous spray line inside and outside a metal tube as described in claim 1-5 is arbitrary, it is characterised in that
Comprise the steps:
1) first metal tube is reached the standard grade to start and is produced, and metal tube sprays car in advancing simultaneously and accelerates follow-up；
Starting coating area pipe-conveying device (2), first metal tube is delivered on upstream pipe-conveying device (2.1) from upper pipe track (1),
In starting, follow-up is accelerated in spray car (7) simultaneously；Start first heater (2.1) and secondary heating mechanism (2.2) to metal tube
Heat；
2) in, in first, splice locations (A) place of spray metal tube, spraying starts construction, and interior spray car at the uniform velocity retreats simultaneously；
In when spraying splice locations (A) place in metal tube front end arrives while, spray gun front end nozzle also arrives at interior spray splice locations (A) place,
In starting, spray gun dusts, and interior spray car (7) at the uniform velocity retreats；
3) outer application starts construction, and interior spray car at the uniform velocity retreats to interior spray and stops and be coated with in rewind position (B) stopping to accelerate to retreat to pipe simultaneously
Allow out position (C)；
Stop and rewind position (B) place when interior spray gun falls back on interior spray, trigger following action, action 1.: stop in spray car (7) spray
Rifle ejection powder；Action is 2.: by interior spray car fast fallback to upper pipe by out position (C) place；
When metal tube front end arrives outer coating device (4), start outer coating device (4) and start construction；
4) second metal tube is reached the standard grade and is chased after the interior spray car acceleration follow-up of front pipe to interior spray splice locations (A)；
Second metal tube is delivered on upstream pipe-conveying device (2.1) from upper pipe track (1), now first metal tube already out on
Trip pipe-conveying device (2.1), upstream pipe-conveying device (2.1) switches to acceleration advance autorotation, until the end of second metal tube
Portion props up the end of first metal tube and switches to autorotation of normally advancing again；Meanwhile, interior spray car accelerates follow-up, when interior spray car
(7), when accelerating follow-up to interior spray splice locations (A) place, the endoporus of first metal tube plastic-coated position just arrives interior spray and connects
Continuous position (A) place；
5) in, spray splice locations (A) place catch up with in pipe plastic-coated position just, restarts internal plastic coating；
Interior spray splice locations (A) place starts internal plastic coating, starts interior spraying application from plastic-coated position, and interior spray car at the uniform velocity retreats simultaneously；
6) at the uniform velocity retreat to interior spray and stop and rewind position (B) place while spray car plastic-coated in, be coated with and accelerate to retreat supreme pipe in stopping and allowing
Out position (C) place；
Stop and rewind position (B) place when interior spray gun falls back on interior spray, trigger following action, action 1.: spray car (7) in stopping
Spray gun ejection powder；Action is 2.: by interior spray car fast fallback to upper pipe by out position (C) place；
7) next root metal tube is reached the standard grade, and next root metal tube is interior spray car acceleration follow-up extremely interior spray splice locations (A) while chasing after front pipe
Place；
Next root metal tube is delivered on upstream pipe-conveying device (2.1) from upper pipe track (1), now go up a metal tube already out on
Trip pipe-conveying device (2.1), upstream pipe-conveying device (2.1) switches to acceleration advance autorotation, until before next root metal tube
End props up the end of a metal tube and switches to autorotation of normally advancing again；Meanwhile, follow-up is accelerated to interior when interior spray car (7)
Spray splice locations (A) place；
Repeat step 5)～7).
7. the continuous spray method of continuous spray line inside and outside a metal tube as claimed in claim 6, it is characterised in that according to gold
Belong to length of tube and coating layer thickness and can calculate a piece metal tube required time of spraying, stop to interior spray according to interior spray splice locations (A) and
The distance of rewind position (B) is converted into interior spraying construction time (TAB-inspray), the speed of coating area pipe-conveying device by interior spray car from interior
Spray splice locations (A) is at the uniform velocity moved back car and is stopped to interior spray and the distance of rewind position (B) is divided by interior spraying construction time (TAB-inspray) really
Fixed.
8. the continuous spray method of continuous spray line inside and outside a metal tube as claimed in claim 6, it is characterised in that interior spray gun
Front end nozzle also arrive at interior spray splice locations (A) place start in spray gun dust for track (6) left end prop up interior spray Herba Plantaginis portion arrange
Triggering switch, trigger switch activated interior spray gun and dust.
9. the continuous spray method of continuous spray line inside and outside a metal tube as claimed in claim 6, it is characterised in that
Interior spray gun dusts beginning, then, when starting timer, terminate during timer, then in spray gun dust stopping, timer is counted
Time is interior spraying construction time (TAB-inspray)。
10. the continuous spray method of continuous spray line inside and outside a metal tube as described in claim 6-9 is arbitrary, it is characterised in that
In the position of plastic-coated of a described upper metal tube arrives, spray splice locations (A) required time is equal to interior spray car rewind, upper pipe, chases after
Pipe sprays the total time of car F.F. in simultaneously.
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| CN201610378688.6A CN105880094B (en) | 2016-06-02 | 2016-06-02 | Continuous spray line and its spraying method inside and outside a kind of metal tube |
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| CN201610378688.6A CN105880094B (en) | 2016-06-02 | 2016-06-02 | Continuous spray line and its spraying method inside and outside a kind of metal tube |
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Cited By (3)
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| CN108672187A (en) * | 2018-05-24 | 2018-10-19 | 文丹 | A kind of new-energy automotive air-conditioning component maintaining agent spray equipment |
| CN109772653A (en) * | 2018-12-30 | 2019-05-21 | 中国石油集团渤海石油装备制造有限公司 | One kind chasing after pipe method, chases after pipe device and steel pipe corrosion-proof production technology |
| CN112090629A (en) * | 2020-08-13 | 2020-12-18 | 利辛县泓坤美思家具科技有限公司 | Steel pipe conveyer |
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|---|---|
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Address after: No. 15, Juncheng Road, Jiuyuan Industrial Park, Baotou City, Inner Mongolia Autonomous Region Co-patentee after: Wang Xiquan Patentee after: INNER MONGOLIA JUNCHENG XINGYE PIPELINE Co.,Ltd. Address before: No. 15, Juncheng Road, Jiuyuan Industrial Park, Baotou City, Inner Mongolia Autonomous Region Co-patentee before: Wang Xiquan Patentee before: INNER MONGOLIA JUNCHENG PIPELINE TECHNOLOGY Co.,Ltd. |
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