CN106925471B - The automatic coating apparatus of steel billet - Google Patents
The automatic coating apparatus of steel billet Download PDFInfo
- Publication number
- CN106925471B CN106925471B CN201710239456.7A CN201710239456A CN106925471B CN 106925471 B CN106925471 B CN 106925471B CN 201710239456 A CN201710239456 A CN 201710239456A CN 106925471 B CN106925471 B CN 106925471B
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- Prior art keywords
- steel billet
- capacitance
- capacitance sensor
- central controller
- plate
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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
- 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
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0278—Arrangement or mounting of spray heads
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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
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/084—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to condition of liquid or other fluent material already sprayed on the target, e.g. coating thickness, weight or pattern
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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
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
- B05B12/124—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to distance between spray apparatus and target
Landscapes
- Spray Control Apparatus (AREA)
Abstract
The invention discloses a kind of automatic coating apparatus of steel billet, including:Transportation system, detecting system, coating input-output system and control system;The transportation system includes:Conveyor roller, the electric machines for roller being connect with the conveyor roller, the first godet pair and the second godet pair;The coating input-output system includes material conveying box, automatic control switch, air compressor machine, feeding pipe, gas pipeline, nozzle;The conveyor roller upper edge transporting direction be disposed with first godet to, the first detection station, spray station, the second detection station and second godet pair.The automatic coating apparatus of steel billet of the present invention has the function of automatic charging, can guarantee the continuity of production.And may identify whether that steel billet arrived in front of nozzle, unnecessary paint waste is avoided during continuous production;And steel billet counting can also be carried out, facilitate user to get out steel billet in advance and accordingly counted.Also ensure steel billet not holiday, and can be in failure alarm.
Description
Technical field
The present invention relates to steel billet coating material equipment equipment technical field, especially a kind of automatic coating apparatus of steel billet.
Background technology
Steel billet can occur in heating and subsequent rolling, heat treatment, forging and cooling procedure because itself being in high temperature
Oxidation and decarburization phenomenon, there is also the dilution of alloying element, to influence end properties sometimes.In addition, hot procedure
Middle high-temperature steel loss is about averagely 10%, and huge economic loss is caused to enterprise.And such issues that solve at present, is most simple
Effectively, the feasible method of most convenient is exactly to apply last layer preventing high temperature oxidation decarburization coating on steel billet in advance.Preventing high temperature oxidation is de-
The research of carbon coating is quite ripe, but the research in relation to the automatic coating apparatus of steel billet rarely has people to do.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that it is automatic to provide a kind of steel billet
Coating apparatus.To improve final product quality, save entreprise cost.
In order to solve the above technical problems, the technical solution adopted by the present invention is:A kind of automatic coating apparatus of steel billet, including:
Transportation system, detecting system, coating input-output system and control system;
The transportation system includes:Conveyor roller, the electric machines for roller being connect with the conveyor roller, the first godet pair and
Two godets pair;
The coating input-output system include material conveying box, automatic control switch, air compressor machine, feeding pipe, gas pipeline,
Nozzle;
The conveyor roller upper edge transporting direction is disposed with first godet to, the first detection station, spraying work
Position, the second detection station and second godet pair.
Preferably, the control system includes detection unit and central controller;The detection unit includes the first electricity
Hold sensor, the second capacitance sensor and signal switching processor;The signal switching processor includes at the first signal conversion
Manage device and second signal conversion processor;Frequency-modulated generator, amplitude limiter circuit, mirror are included at least inside the signal switching processor
Frequency circuit and amplifying circuit.
Preferably, first capacitance sensor is electrically connected with first signal switching processor, second electricity
Hold sensor to be electrically connected with the second signal conversion processor, at first signal switching processor and second signal conversion
Reason device is electrically connected with the central controller;The central controller also with the air compressor machine, nozzle solenoid valve, electric machines for roller
It is electrically connected.
Preferably, the two-plate of first capacitance sensor is set to the conveyor roller at first detection station
Both sides, formed between the first capacitance sensor two-plate for steel billet by the first sense channel;Second capacitance sensing
The two-plate of device is set to the conveyor roller both sides at second detection station, shape between the second capacitance sensor two-plate
At for steel billet by the second sense channel.
Preferably, the nozzle includes 4, and solenoid valve is both provided on each nozzle;The nozzle is set to described
In spray station;The feeding pipe include a total material-conveying pipe and be connected to the total material-conveying pipe by a Five-way tube 4 are defeated
Expect branch pipe;The gas pipeline includes the first gas transmission supervisor and the second gas transmission master being connected to the air compressor machine by a three-way pipe
Pipe is responsible for 4 gas transmission branch pipes being connected to by a Five-way tube with second gas transmission;Described in the every conveying branch pipe and one
Gas transmission branch pipe is communicated to by a three-way pipe on a nozzle, to realize 4 conveying branch pipes and 4 gas transmission branch pipes
Correspondence is communicated on 4 nozzles.
Preferably, the control system detects whether steel billet reaches between its pole plate simultaneously by first capacitance sensor
Steel billet is counted, while the opening and closing of the nozzle solenoid is controlled by central controller, it is specific to control
Method includes the following steps:
1) measured in advance capacitance C10、C11, and result is stored in the central controller;
Wherein, C10The electricity of first capacitance sensor when medium between the first capacitance sensor two-plate is air
Capacitance;C11When the steel billet part of the non-sprayed coating in outer surface being parked between the first capacitance sensor two-plate, first electricity
Hold the capacitance of sensor;
2) when the automatic coating apparatus of the steel billet works, the capacitance C of first capacitance sensoraAutomatically it is transmitted to institute
The first signal switching processor is stated, the central controller is transmitted to after first signal switching processor processing;
3) central controller is by CaValue and pre-stored data after carry out corresponding control:Work as Ca=C10
When, the central controller controls close the nozzle solenoid;Work as Ca=C11When, the central controller controls open institute
Nozzle solenoid is stated, normal coating work is carried out;
4) central controller is according to the capacitance C of first capacitance sensoraSituation of change to described in arrival
Steel billet between first capacitance sensor two-plate is counted, and specific method is:The central controller monitoring described first
The capacitance C of capacitance sensoraChange with time situation, works as CaValue by it is low mutation to it is high when count once.
Preferably, the control system monitors steel billet by second capacitance sensor and is in second capacitance biography
Whether the outer surface of the part between the pole plate of sensor coats coating completely, and the steel billet part for controlling incomplete sprayed coating is returned
It returns to spray station to spray again, specific control method includes the following steps:
1) measured in advance capacitance C20、C21、C22, and result is stored in the central controller;
Wherein, C20The electricity of second capacitance sensor when medium between the second capacitance sensor two-plate is air
Capacitance;C21When the steel billet part of the non-sprayed coating in outer surface being parked between the second capacitance sensor two-plate, second electricity
Hold the capacitance of sensor;C22The steel billet that outer surface is coated with coating completely is parked between the second capacitance sensor two-plate
When part, the capacitance of second capacitance sensor;
2) when the automatic coating apparatus of the steel billet works, the capacitance C of second capacitance sensorbAutomatically it is transmitted to institute
Second signal conversion processor is stated, the central controller is transmitted to after second signal conversion processor processing;
3) central controller is by CbValue and pre-stored data after carry out corresponding control:Work as Cb=C20Or
Cb=C22When, electric machines for roller described in the central controller controls keep rotating forward;Work as Cb>C22Or Cb=C21When, that is, judge to be in
The incomplete sprayed coating in outer surface of steel billet part between the second capacitance sensor two-plate or non-sprayed coating, in described
It entreats controller to control the electric machines for roller reversion, while controlling the air compressor machine and being stopped and close the solenoid valve, until
After the steel billet part of the incomplete sprayed coating or non-sprayed coating returns to spray station, the central controller controls institute again
Electric machines for roller rotating forward is stated, while controlling the air compressor machine and resuming work and open the solenoid valve.
Preferably, the control system further includes alarm module, and complete painting is preset in the central controller
The average time T that a complete steel billet needs, when the central controller detects that the electric machines for roller invert twice in succession
Between interval when being less than T, alarm module alarm described in the central controller controls, while controlling and closing the air compressor machine and roller-way
Motor.
Preferably, the material conveying box includes intermediate storage tank, the storing packet that is set to above the intermediate storage tank, uses
In the communicating pipe for being connected to the storing packet and intermediate storage tank, the sealing ring being set to inside the communicating pipe, be plugged in it is described
Stopper in sealing ring, the connecting rod being connect with the stopper top, is connected to the company at the floating plug for being connected to the stopper bottom
The bead of the movable end of bar and the fulcrum for being set to the connecting rod and the storing packet contact position;The floating plug and the sealing
Circle cooperation is to seal the communicating pipe;It is connected to first gas transmission supervisor above the intermediate storage tank side, the centre
It is connected to the total material-conveying pipe below storage tank side.
Preferably, the automatic control switch includes pillar, the overhead gage being connect with the pillar upper end and the branch
The lower baffle plate of column lower end connection, is connected on the movable end of the spring spring being connected on the overhead gage lower surface
Pallet, the first binding post being connected on the pallet lower surface and be connected on the lower baffle plate and with first binding post
Second binding post of face, the automatic control switch are connected with the air compressor machine.
The present invention includes at least following advantageous effect:
(1) the automatic coating apparatus of steel billet of the invention has the function of automatic charging, can guarantee the continuity of production.
(2) the first capacitance sensor of the invention coordinates control system, may identify whether that steel billet arrived in front of nozzle,
Unnecessary paint waste is avoided during continuous production;And steel billet counting can also be carried out, facilitate user to get out steel in advance
It base and is accordingly counted.
(3) the second capacitance sensor of the invention coordinates control system, can monitor whether steel billet billet surface sprays completely
Coating, and the steel billet part for controlling incomplete sprayed coating returns and sprays again, ensures steel billet not holiday, and can occurring therefore
Hinder alarm.
(4) nozzle of use four of the invention from the horizontal by certain inclination angle, and godet is added to ensure steel billet
Positional precision when being moved on conveyor roller, it is ensured that without dead angle in spraying process.
Description of the drawings
Fig. 1 is the system composition schematic diagram of the automatic coating apparatus of steel billet of the present invention;
Fig. 2 is the cooperation principle schematic of the material conveying box and automatic control switch of the present invention;
Fig. 3 is the flow diagram of the conveying gas pipeline of the automatic coating apparatus of steel billet of the present invention;
Fig. 4 is the position relationship schematic diagram between the steel billet cross section and nozzle of the automatic coating apparatus of steel billet of the present invention;
Fig. 5 is the schematic block diagram of the signal switching processor of the automatic coating apparatus of steel billet of the present invention;
Fig. 6 is capacitance sensor output and the time chart of the present invention;
Fig. 7 is the functional block diagram of the control system of the automatic coating apparatus of steel billet of the present invention.
Reference sign:
1-conveyor roller;2-material conveying box;3-automatic control switch;4-air compressor machines;5-nozzles;10-the first godet
It is right;11-the first detection station;12-spray stations;13-the second detection station;14-the second godet pair;15-steel billets;6—
First capacitance sensor;7-the second capacitance sensor;8-total material-conveying pipes;9-the first gas transmission is responsible for;20-intermediate storage tanks;
21-storing packets;22-communicating pipes;23-sealing rings;24-stoppers;25-floating plugs;26-connecting rods;27-beads;28-
Point;30-pillars;31-overhead gages;32-lower baffle plates;33-springs;34-pallets;35-the first binding post;36-the second connects
Terminal;37-spring balancing positions;40-gas transmission feeding pipe seal boxs.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
It need to be intended that, signified steel billet 15 selects common square billet in the present invention, and due in subsequent rolling process
In, head-tail will produce warpage, and the head-tail of blank can be cut away after rolling in actual production, thus, in subsequent painting
In the narration for expecting work, pair two faces vertical with 15 direction of motion of steel billet are not considered, i.e., follow-up signified 15 surface of steel billet
Do not consider when whether being coated with coating or incomplete sprayed coating or complete sprayed coating vertical with 15 direction of motion of steel billet
Two faces.
As shown in Figure 1, a kind of 15 automatic coating apparatus of steel billet of the present embodiment, which is characterized in that including:Transportation system,
Detecting system, coating input-output system and control system;
Transportation system includes:Conveyor roller 1, the electric machines for roller being connect with conveyor roller 1, the first godet pair 10 and second are led
Disk pair 14;
Coating input-output system include material conveying box 2, automatic control switch 3, air compressor machine 4, feeding pipe, gas pipeline,
Nozzle 5;
1 upper edge transporting direction of conveyor roller is disposed with the first godet pair 10, the first detection station 11, spray station
12, the second detection station 13 and the second godet pair 14.
Wherein, to including 2 godets, the first godet pair 10 and the second godet pair 14 are used to ensure that steel billet 15 exists each godet
The positional precision moved on conveyor roller 1, to ensure that coating can be ejected into each ground on 15 surface of steel billet by four nozzles 5
Side.
With reference to figure 5 and Fig. 7, control system includes detection unit and central controller;Detection unit is passed including the first capacitance
Sensor 6, the second capacitance sensor 7 and signal switching processor;Signal switching processor include the first signal switching processor and
Second signal conversion processor;Frequency-modulated generator, amplitude limiter circuit, frequency-discriminating circuit are included at least inside signal switching processor and are put
Big circuit.The signal that signal switching processor transmits the first capacitance sensor 6 and the second capacitance sensor 7 carries out conversion process
It is transmitted to central controller again afterwards.
Wherein, microcomputer or microcontroller can be selected in central controller.
First capacitance sensor 6 is electrically connected with the first signal switching processor, and the second capacitance sensor 7 turns with second signal
Processor electrical connection is changed, the first signal switching processor and second signal conversion processor are electrically connected with central controller;In
Centre controller is also electrically connected with air compressor machine 4,5 solenoid valve of nozzle, electric machines for roller.
Wherein, when air compressor machine 4 stops, central controller automatically control close nozzle 5 on solenoid valve to stop material spray,
Electric machines for roller stopping is controlled simultaneously.
With reference to figure 3, nozzle 5 includes 4, and solenoid valve is both provided on each nozzle 5;Nozzle 5 is set to spray station 12
On;Feeding pipe includes a total material-conveying pipe 8 and 4 conveying branch pipes being connected to total material-conveying pipe 8 by a Five-way tube;Gas pipeline
Include the first gas transmission supervisor 9 being connected to air compressor machine 4 by a three-way pipe and the second gas transmission supervisor, by a Five-way tube and second
4 gas transmission branch pipes of gas transmission supervisor's connection;Every conveying branch pipe and a gas transmission branch pipe are communicated to one by a three-way pipe
On nozzle 5, to realize that 4 conveying branch pipes and 4 gas transmission branch pipe correspondences are communicated on 4 nozzles 5.Connect on each nozzle 5
Lead to a conveying branch pipe and a gas transmission branch pipe, coating spraying is carried out using compressed air as power.Feeding pipe and appendix
Road is sealed by gas transmission feeding pipe seal box 40.
With reference to figure 4, nozzle 5 is put according to such as figure, position shown in 4, the four of the center alignment steel billet 15 of nozzle 5
A angle and nozzle 5 are adjusted from the horizontal by certain inclination angle (mostly using square billet in production, therefore initial angle is set as 45 °)
The position of nozzle 5 ensures that the coating sprayed from 5 edge of each nozzle can be sprayed onto the midpoint on the side of similar two rectangles therewith.
Since in subsequent rolling process, head-tail will produce warpage, the head-tail of blank can be cut after rolling in actual production
It removes, thus we are not considered two faces vertical with 15 direction of motion of steel billet.The figure is along 15 direction of motion of steel billet
The view of side-looking direction.
The two-plate of first capacitance sensor 6 is set to 1 both sides of conveyor roller at the first detection station 11, the first capacitance
Between 6 two-plate of sensor formed for steel billet 15 by the first sense channel;The two-plate of second capacitance sensor 7 is set to
1 both sides of conveyor roller at two detection stations 13, formed between 7 two-plate of the second capacitance sensor for steel billet 15 by the second inspection
Survey channel.Steel billet 15 successively passes through the first detection that the two-plate of the first capacitance sensor 6 is formed under the action of conveyor roller 1
The second sense channel that the two-plate of channel and the second capacitance sensor 7 is formed, passing through for steel billet 15 can make the first capacitance sensing
The capacitance of device 6 and the second capacitance sensor 7 changes, and is examined to first by testing and analyzing the situation of change of its capacitance
Whether survey in channel and the second sense channel has the sprayed coating situation of steel billet 15 and steel billet 15 to be judged.
Wherein, the capacitance of capacitance sensor:
The dielectric constant of ε media between capacitance sensor two-plate, S are pole plate facing area, distances of the d between pole plate.
Gu the medium between capacitance sensor two-plate changes, capacitance C can occur accordingly to change, so capacitance sensor two
Whether there is or not the coating on the surface of 15 part of steel billet between steel billet 15, capacitance sensor two-plate brushing situations between pole plate can be to capacitance
The capacitance C of sensor has an impact, and the detection so as to form the present invention on this basis judges scheme.
Its specific detection judgement scheme is for example following.
Whether I control systems detect steel billet 15 by the first capacitance sensor 6 and reach between its pole plate and carried out to steel billet 15
It counts, while the opening and closing of 5 solenoid of nozzle is controlled by central controller, specific control method includes following step
Suddenly:
1) measured in advance capacitance C10、C11, and result is stored in central controller;
Wherein, C10The capacitance of first capacitance sensor 6 when medium between 6 two-plate of the first capacitance sensor is air
Value;C11When 15 part of steel billet of the non-sprayed coating in outer surface being parked between 6 two-plate of the first capacitance sensor, which passes
The capacitance of sensor 6;
2) when 15 automatic coating apparatus of steel billet works, the capacitance C of the first capacitance sensor 6aAutomatically it is transmitted to the first letter
Number conversion processor is transmitted to central controller after the processing of the first signal switching processor;
3) central controller is by CaValue and pre-stored data after carry out corresponding control:Work as Ca=C10When, i.e.,
5 solenoid of nozzle is closed without steel billet 15, central controller controls between 6 two-plate of the first capacitance sensor at this time, thus
Next steel billet 15 stops material spray before arriving, can be to avoid coating;Work as Ca=C11When, i.e., there is steel billet 15 to reach the first electricity at this time
Between holding 6 two-plate of sensor, central controller controls open 5 solenoid of nozzle, and normal coating work is carried out to steel billet 15;
4) central controller is according to the capacitance C of the first capacitance sensor 6aSituation of change to reaching the first capacitance sensing
Steel billet 15 between 6 two-plate of device is counted, and specific method is:Central controller monitors the capacitance of the first capacitance sensor 6
Value CaChange with time situation, works as CaValue by it is low mutation to it is high when count once.
With reference to figure 6, in one embodiment, central controller monitors the capacitance C of the first capacitance sensor 6aAt any time
Situation of change, and draw the first capacitance sensor 6 output (i.e. its capacitance Ca) with the relational graph of time, work as CaValue by
Low mutation counts primary, that is, the number of steel billet 15 reached plus one when arriving high, to carry out counting system to the steel billet 15 of arrival in realizing
Meter, statistical result are stored in central controller.
II 15 automatic coating apparatus of steel billet according to claim 6, which is characterized in that control system is passed by the second capacitance
Whether the outer surface that sensor 7 monitors the part that steel billet 15 is between the pole plate of the second capacitance sensor 7 coats coating completely, and
15 part of steel billet of the incomplete sprayed coating of control sprays again back to spray station 12, and specific control method includes following
Step:
1) measured in advance capacitance C20、C21、C22, and result is stored in central controller;
Wherein, C20The capacitance of second capacitance sensor 7 when medium between 7 two-plate of the second capacitance sensor is air
Value;C21When 15 part of steel billet of the non-sprayed coating in outer surface being parked between 7 two-plate of the second capacitance sensor, which passes
The capacitance of sensor 7;C2215 part of steel billet that outer surface is coated with coating completely is parked between 7 two-plate of the second capacitance sensor
When, the capacitance of second capacitance sensor 7;
2) when 15 automatic coating apparatus of steel billet works, the capacitance C of the second capacitance sensor 7bAutomatically it is transmitted to the second letter
Number conversion processor is transmitted to central controller after the processing of second signal conversion processor;
3) central controller is by CbValue and pre-stored data after carry out corresponding control:Work as Cb=C20(i.e. this
When 7 two-plate of the second capacitance sensor between without steel billet 15, need to wait for the arrival of next steel billet 15, Gu motor need to keep rotating forward) or Cb
=C22When (i.e. 15 part of steel billet that outer surface is coated with coating completely is parked between 7 two-plate of the second capacitance sensor), center control
Device control electric machines for roller processed keep rotating forward;Work as C22<Cb<C21(it is incomplete that surface is parked between 7 two-plate of the second capacitance sensor at this time
15 part of steel billet of sprayed coating, i.e. 15 part surface of steel billet between 7 two-plate of the second capacitance sensor are coated with part coatings,
But 15 surface of steel billet is not completely covered for coating) or Cb=C21When (15 part of steel billet being parked between 7 two-plate of the second capacitance sensor
The non-sprayed coating in outer surface), that is, judge that the outer surface of 15 part of steel billet between 7 two-plate of the second capacitance sensor is not complete
Full sprayed coating or non-sprayed coating, the reversion of central controller controls electric machines for roller, while controlling air compressor machine 4 and being stopped and close
Solenoid valve is closed, until after 15 part of steel billet of the incomplete sprayed coating or non-sprayed coating returns to spray station 12, center
Controller controls electric machines for roller rotating forward again, while controlling air compressor machine 4 and resuming work and open solenoid valve, re-starts spraying.From
And ensure that 15 surface of steel billet is sprayed completely, not holiday.
Wherein, coating of the invention is non electrically conductive material, if the part that steel billet 15 is between two-plate is sprayed-on completely,
Obviously 15 outer surface of steel billet can not assemble charge at this time, but still can generate production to the dielectric constant the two-plate of capacitance sensor
It is raw to influence, even if the total capacitance of capacitance sensor increases.Above-mentioned each capacitance size order is:,C11>C10;C21>C22>C20。
Identical capacitance sensor can be selected in first capacitance sensor 6 and the second capacitance sensor 7, also can be selected different
Capacitance sensor, when the model that the first capacitance sensor 6 and the second capacitance sensor 7 are selected is identical, C10=C20。
Control system further includes alarm module, is preset in central controller and is painted with what a steel billet 15 needed completely
Average time T, when central controller detects that the time interval that electric machines for roller invert twice in succession is less than T, central controller
Alarm module alarm is controlled, while controlling and closing air compressor machine 4 and electric machines for roller.
With reference to figure 2, material conveying box 2 includes intermediate storage tank 20, is set to the storing packet 21 of 20 top of intermediate storage tank, is used for
The communicating pipe 22 of connection storing packet 21 and intermediate storage tank 20 sealing ring 23 being set to inside communicating pipe 22, it is plugged in sealing
Circle 23 in stopper 24, be connected to 24 bottom of stopper floating plug 25, connect with 24 top of stopper connecting rod 26, be connected to connecting rod 26
Movable end bead 27 and be set to the fulcrum 28 of connecting rod 26 and 21 contact position of storing packet.Stopper 24 can be within communicating pipe 22
Sealing ring 23 in stretch, 25 size of floating plug is matched with sealing ring 23, to seal communicating pipe 22;Above 20 side of intermediate storage tank
It is connected to the first gas transmission supervisor 9, is connected to total material-conveying pipe 8 below 20 side of intermediate storage tank.
Wherein, when stopper 24, which moves up to floating plug 25, to be bonded with sealing ring 23, floating plug 25 seals communicating pipe 22, storage
Raw material in material packet 21 can not be flowed downward by communicating pipe 22;It is detached from sealing ring 23 when stopper 24 moves downwardly to floating plug 25
When, due to having gap between stopper 24 and sealing ring 23, the air of 20 top of intermediate storage tank outside the gap by arranging, storing packet
Raw material in 21 is flowed downwardly to by the gap in intermediate storage tank 20.
Automatic control switch 3 includes pillar 30, is connect with 30 upper end of pillar overhead gage 31 is connect with 30 lower end of pillar
Lower baffle plate 32, the pallet 34 being connected on the movable end of spring 33, is connected to the spring 33 being connected on 31 lower surface of overhead gage
The first binding post 35 on 34 lower surface of pallet and be connected on lower baffle plate 32 and with the second wiring of 35 face of the first binding post
Column 36, automatic control switch 3 are connected with air compressor machine 4.First binding post 35 and the second binding post 36 are connect with power cord respectively, when
It when first binding post 35 and the second binding post 36 contact, is connected between the first binding post 35 and the second binding post 36, i.e., automatic control
System switch 3 is in channel status, and air compressor machine 4 can work normally;When the first binding post 35 and the second binding post 36 separate, first
Binding post 35 and the second binding post 36 it is separated, i.e., automatic control switch 3 is in off state, and air compressor machine 4 is stopped.
Material conveying box 2 and the process of 3 cooperating of automatic control switch are:When the liquid level in intermediate storage tank 20 declines,
Floating plug 25 can move down under gravity until floating plug 25 and sealing ring 23 completely disengage, and connecting rod 26 and second is filled at this time
The connecting pin of stick 24 moves downward, and under the action of fulcrum 28, the bead 27 on the other end of connecting rod 26 moves up, until bead 27
It disappears to the pressure of pallet 344,33 column of spring returns to spring balancing position 37, at this time the first binding post 35 and the second binding post 36
It separates, off state is between two groups, is i.e. automatic control switch 3 disconnects, and stops with 3 concatenated air compressor machine 4 of automatic control switch
It only works, central controller automatically controls the solenoid valve on closing nozzle 5 to stop material spray, while controlling electric machines for roller stopping.
The compressed air of ullage can be between stopper 24 and sealing ring 23 gap overflow until reaching balance with outside pressure.This
Afterwards, the coating in storing packet 21 injects intermediate storage tank 20 under gravity.
When the liquid level in intermediate storage tank 20 gradually rises to 25 lower surface of floating plug, under the action of buoyancy, floating plug 25
It can rise and be fully sealed until between sealing ring 23, floating plug 25 reaches peak, under the raw material in storing packet 21 can not continue
It flow in intermediate storage tank 20, the raw material stored in intermediate storage tank 20 reaches maximum, the connection of 26 stopper 24 of connecting rod at this time
End moves up to vertex, and under the action of fulcrum 28, the bead 27 on the other end of connecting rod 26 is displaced downwardly to minimum point, bead 27
Pallet 34 is pressed into minimum point, by the first binding post 35 being pressed onto on the second binding post 36 tightly, makes 35 He of the first binding post
It is between second binding post 36, makes to resume work with 3 concatenated air compressor machine 4 of automatic control switch, in central controller
Control under, solenoid valve on nozzle 5, which is opened, starts material spray, while controlling electric machines for roller and resuming work, and coating is again with certain
Pressure enter conveying pipeline, restore coating work.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With.It can be applied to various suitable the field of the invention completely.It for those skilled in the art, can be easily
Realize other modification.Therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (9)
1. a kind of automatic coating apparatus of steel billet, which is characterized in that including:Transportation system, detecting system, coating input-output system
And control system;
The transportation system includes:Conveyor roller, the electric machines for roller being connect with the conveyor roller, the first godet pair and second are led
Disk pair;
The coating input-output system includes material conveying box, automatic control switch, air compressor machine, feeding pipe, gas pipeline, spray
Head;
The conveyor roller upper edge transporting direction be disposed with first godet to, the first detection station, spray station,
Two detection stations and second godet pair;
The control system includes detection unit and central controller;The detection unit includes the first capacitance sensor, second
Capacitance sensor and signal switching processor;The signal switching processor includes the first signal switching processor and second signal
Conversion processor;Frequency-modulated generator, amplitude limiter circuit, frequency-discriminating circuit and amplification electricity are included at least inside the signal switching processor
Road.
2. the automatic coating apparatus of steel billet according to claim 1, which is characterized in that first capacitance sensor with it is described
First signal switching processor is electrically connected, and second capacitance sensor is electrically connected with the second signal conversion processor, institute
It states the first signal switching processor and second signal conversion processor is electrically connected with the central controller;The center control
Device is also electrically connected with the air compressor machine, nozzle solenoid valve, electric machines for roller.
3. the automatic coating apparatus of steel billet according to claim 2, which is characterized in that the two poles of the earth of first capacitance sensor
Plate is set to the conveyor roller both sides at first detection station, is formed for steel billet between the first capacitance sensor two-plate
By the first sense channel;The two-plate of second capacitance sensor is set to the transport roller at second detection station
Road both sides, formed between the second capacitance sensor two-plate for steel billet by the second sense channel.
4. the automatic coating apparatus of steel billet according to claim 3, which is characterized in that the nozzle includes 4, each nozzle
On be both provided with solenoid valve;The nozzle is set in the spray station;The feeding pipe includes a total material-conveying pipe and leads to
Cross 4 conveying branch pipes that a Five-way tube is connected to the total material-conveying pipe;The gas pipeline include by a three-way pipe with it is described
The the first gas transmission supervisor and the second gas transmission supervisor of air compressor machine connection, 4 be connected to second gas transmission supervisor by a Five-way tube
Root gas transmission branch pipe;The every conveying branch pipe and a gas transmission branch pipe are communicated to a nozzle by a three-way pipe
On, to realize that 4 conveying branch pipes and 4 gas transmission branch pipe correspondences are communicated on 4 nozzles.
5. the automatic coating apparatus of steel billet according to claim 4, which is characterized in that the control system passes through described first
Whether capacitance sensor detection steel billet reaches between its pole plate and is counted to steel billet, while by central controller to the spray
The opening and closing of head solenoid is controlled, and specific control method includes the following steps:
1) measured in advance capacitance C10、C11, and result is stored in the central controller;
Wherein, C10The capacitance of first capacitance sensor when medium between the first capacitance sensor two-plate is air
Value;C11When the steel billet part of the non-sprayed coating in outer surface being parked between the first capacitance sensor two-plate, first capacitance
The capacitance of sensor;
2) when the automatic coating apparatus of the steel billet works, the capacitance C of first capacitance sensoraAutomatically it is transmitted to described
One signal switching processor is transmitted to the central controller after first signal switching processor processing;
3) central controller is by CaValue and pre-stored data after carry out corresponding control:Work as Ca=C10When, it is described
Central controller controls close the nozzle solenoid;Work as Ca=C11When, the central controller controls open the nozzle
Solenoid carries out normal coating work;
4) central controller is according to the capacitance C of first capacitance sensoraSituation of change to reach it is described first electricity
The steel billet held between sensor two-plate is counted, and specific method is:The central controller monitors first capacitance and passes
The capacitance C of sensoraChange with time situation, works as CaValue by it is low mutation to it is high when count once.
6. the automatic coating apparatus of steel billet according to claim 5, which is characterized in that the control system passes through described second
Whether the outer surface for the part that capacitance sensor monitoring steel billet is between the pole plate of second capacitance sensor coats completely
Coating, and the steel billet part for controlling incomplete sprayed coating sprays again back to spray station, specific control method includes
Following steps:
1) measured in advance capacitance C20、C21、C22, and result is stored in the central controller;
Wherein, C20The capacitance of second capacitance sensor when medium between the second capacitance sensor two-plate is air
Value;C21When the steel billet part of the non-sprayed coating in outer surface being parked between the second capacitance sensor two-plate, second capacitance
The capacitance of sensor;C22The steel billet portion that outer surface is coated with coating completely is parked between the second capacitance sensor two-plate
Timesharing, the capacitance of second capacitance sensor;
2) when the automatic coating apparatus of the steel billet works, the capacitance C of second capacitance sensorbAutomatically it is transmitted to described
Binary signal conversion processor is transmitted to the central controller after second signal conversion processor processing;
3) central controller is by CbValue and pre-stored data after carry out corresponding control:Work as Cb=C20Or Cb=
C22When, electric machines for roller described in the central controller controls keep rotating forward;Work as Cb>C22Or Cb=C21When, that is, judge in described
The incomplete sprayed coating in outer surface of steel billet part between second capacitance sensor two-plate or non-sprayed coating, the center control
Device processed controls the electric machines for roller reversion, while controlling the air compressor machine and being stopped and close the solenoid valve, until this is not
After the steel billet part of complete sprayed coating or non-sprayed coating returns to spray station, the central controller controls the roller again
Road motor rotates forward, while controlling the air compressor machine and resuming work and open the solenoid valve.
7. the automatic coating apparatus of steel billet according to claim 6, which is characterized in that the control system further includes alarm mould
Block is preset with the average time T for being painted with steel billet needs completely in the central controller, when the central controller
When detecting that the time interval that the electric machines for roller invert twice in succession is less than T, mould of alarming described in the central controller controls
Block is alarmed, while being controlled and being closed the air compressor machine and electric machines for roller.
8. the automatic coating apparatus of steel billet according to claim 5, which is characterized in that the material conveying box includes intermediate storing
Tank, the communicating pipe for being connected to the storing packet and intermediate storage tank, is set the storing packet being set to above the intermediate storage tank
The sealing ring that is placed in inside the communicating pipe, the stopper being plugged in the sealing ring, the floating plug for being connected to the stopper bottom,
The connecting rod that is connect with the stopper top, be connected to the connecting rod movable end bead and be set to the connecting rod and the storage
Expect the fulcrum of packet contact position;The floating plug coordinates with the sealing ring to seal the communicating pipe;The intermediate storage tank side
It is connected to first gas transmission supervisor above portion, is connected to the total material-conveying pipe below the intermediate storage tank side.
9. the automatic coating apparatus of steel billet according to claim 1, which is characterized in that the automatic control switch includes branch
Column, the lower baffle plate being connect with the lower rod end, is connected to the overhead gage following table at the overhead gage being connect with the pillar upper end
Spring on face, the pallet being connected on the movable end of the spring, the first binding post being connected on the pallet lower surface
And be connected on the lower baffle plate and with the second binding post of the first binding post face, the automatic control switch with it is described
Air compressor machine is connected.
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CN108580118B (en) * | 2018-05-18 | 2021-02-12 | 湖南博溥立材料科技有限公司 | Automatic spraying system and method for anode carbon block anti-oxidation coating |
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