CN2088902U

CN2088902U - Full automatic powder supply device

Info

Publication number: CN2088902U
Application number: CN 91201901
Authority: CN
Inventors: 张春智
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-01-31
Filing date: 1991-01-31
Publication date: 1991-11-20

Abstract

The utility model discloses a fully automatic powder supplying device, belonging to a metal pipes spraying corrosion protection powder shape coating material supplying device; the device is composed of an upper funnel 8, a lower funnel 27, and a bottom board 11; the upper funnel 8, the lower funnel 27, and the bottom board 11 divide the powder supplying device into an upper chamber 4, a central chamber 9, and an air storage chamber 26; the lower hole of the lower funnel 27 is connected with a material mixing chamber 24. The upper chamber 4 is a material storage chamber, and the central chamber 9 is a material supplying chamber; the powder material in the material storage chamber is automatically added into the material supplying chamber; the powder material of the material supplying chamber is automatically pushed into the material mixing chamber through a screw pushing device, and after being mixed with the gases, the fine material is automatically supplied for spraying from a powder supplying pipe 13. The utility model has the advantages of simple structure, convenient operation, sensitively automatic control, no compaction for the powder material, uniform material mixing, uniform spraying, and good effect; besides, the utility model also has the function of blowing and sweeping the surplus material in the powder supplying pipe automatically.

Description

Full automatic powder supply device

The device of the anticorrosion supply powder of the utility model metal spraying shape coating.

For metal pipe line or canister, all need to carry out preservative treatment as petroleum pipeline, water-supply-pipe, separator, water knockout drum etc., the powder equipment that supplies of solid powder coating must be provided in the anticorrosion process that adopts spraying powder shape coating.The powder feeder of prior art has three kinds: complete pneumatic powder feeder, the pneumatic powder feeder of spiral, the pneumatic automatic powder feeder of spiral.Complete pneumatic powder feeder is that compressed air is fed in the accumulator, and the agitaion of pneumatically is transported to powder in the injector and sprays, and its shortcoming is to need manual operations, and is inhomogeneous for powder, influences coating quality.The pneumatic powder feeder of spiral is more even, but because the weight and the compressed-air actuated effect of powder self make the coating of powder feeder bottom press very solidly, also influences coating quality.The pneumatic automatic powder feeder of spiral will expect that cylinder is designed to three parts, and top is divided into the storage compartment, and middle chamber is the auto feed chamber, and the bottom is the feed chamber.The powder outlet of storage compartment is controlled by optoelectronic switch, when powder in the middle of entering from the storage compartment, top the auto feed chamber and reach a certain amount of after, the outlet of storage compartment is closed under the optoelectronic switch effect automatically, the powder of cylinder piston work medial compartment adds feed chamber, bottom, is being carried by spiral propeller in the chamber down, after powder mixes with compressed gas, the supply injector uses, after the powder of medial compartment pushed away only, storage compartment's switch was opened automatically, to middle feed compartment charging.Reciprocal like this feed automatically.The shortcoming of this powder feeder is a complex structure, and troublesome poeration is easy to failure, the cost height.

The utility model is in order to overcome the complex structure of the pneumatic automatic powder feeder of spiral, the shortcoming of grade easy to failure and design a kind of simple in structure, easy to operate, be the new automatic powder feeder of power with the Compressed Gas.

The technical solution of this utility model is: it is by feed hopper 1, valve 2, peep hole or display 3, last chamber 4, hand hole 5, electrical control indicator board 6, display 7, upper hopper 8, middle chamber 9, material baffle 10, base plate 11,

Pressure gauge

12,14,31, power tracheae 15, A.C. contactor 16, gearbox 17, motor 18, air intake branch 19,

magnetic valve

20,22, total inlet pipe 21, spiral propeller 23, batch mixing chamber 24, air storage chamber air inlet pipe 25, air storage chamber 26, following funnel 27, communicating pipe 28, the optoelectronic switch 34 that cooperates its use among powder feeder shell 29 and Fig. 2 thereof, injector 32, travel switch 33, defeated material is swung pipe 36, pipe that is sprayed or container 35 constitute, for tube cell 13, and blanking tracheae 30.

The upper limb of upper hopper 8 is tightly connected with shell 29, chamber 4 on its bell mouth top is, installing peep hole or display 3 on the shell wall of last chamber, by it can see advance the quantity of coating, on the hopper walls of upper hopper, display 7 is housed, can demonstrate remaining quantity in the chamber, have a hand hole 5 that can seal on the wall of last chamber 4, can load and unload display 7 and peep hole 3 by it, have in the inboard of last chamber 4 blanking tracheae 30 from the top to hopper outlet top.The end opening of upper hopper 8 connects umbrella material baffle 10, and material baffle 10 extend into down in the funnel 27, and it makes the coating powder of chamber 4 when leaning on own wt to fall in the following funnel 27 by the upper hopper cunning, does not produce down funnel on not understanding.The upper limb of following funnel 27 also is tightly connected with shell 29, it is with between the upper hopper 8 being middle chamber 9, middle chamber 9 is a feed compartment, the base plate 11 that links to each other with shell 29 sealings in its underpart, it between them air storage chamber 26, air storage chamber 26 is with there being fixing and pass down on funnel 27 walls being connected communicating pipe 28 between the middle chamber 9, the compressed gas in the air storage chamber 26 can enter into chamber 9.Batch mixing chamber 24 links to each other with funnel 27 end openings down, and by every in the bottom of base plate 11, the following connection gearbox 17 of batch mixing chamber 24 has motor 18 to link to each other with it, and A.C. contactor 16 is housed on the pedestal of motor 18.Spiral propeller 23 is 24 centers in the batch mixing chamber, and its upper end is stretched into down in the outlet of funnel 27, and the lower end connects with gearbox 17, drives its rotation by motor 18 by speed changer, and speed is controlled by speed regulator.One side of batch mixing chamber 24 connects air inlet pipe 19, and another side connects for tube cell 13.In shell 29 outsides electrical equipment control indicator board 6 is housed, electrical equipment master switch machine governor display of the present utility model etc. all is contained in above it.The upper top of shell 29 is equipped with loading hopper 1 and regulating gate 2, Pressure gauge 31, and the air pressure of last chamber is measured by Pressure gauge 31.Air inlet pipe 21, power gas 15 passes from the bottom of shell 29, and the pressure of power tracheae 15 is measured by Pressure gauge 14, and by magnetic valve 20 controls, air inlet pipe 19 air inflow sizes are regulated control by gate, are measured by Pressure gauge 12 for the pressure of tube cell.

During operation, the coating powder is joined the storage compartment 4 from hopper 1, powder by own wt is directly sliding fall in the bell mouth of following funnel 27 of chamber 8, can determine the powder amount of required adding from peep hole 3, after material adds enough, closed shutter 2.The master on off of the electrical equipment control of closing indicator board 6, by A.C. contactor 16, motor 18 is rotated, by the speed regulator speed governing, giving spiral propeller 23 required speed rotates, will descend the coating powder in the funnel 27 to push in the batch mixing chamber 24, meanwhile, open the electromagnetic valve 20 on the

total inlet pipe

21,22, a part of gas enters power tracheae 15 by magnetic valve 20 controls, and the power gas during as injector 32 sprayings uses, and another part gas enters batch mixing chamber 24 by electromagnetic valve 22 air inlet pipe 19, the coating powder that pushes with spiral propeller 23 mixes, and mixed coating sprays through entering injector 32 for tube cell 13.Another part gas enters air storage chamber 26 by the air inlet pipe 25 of air storage chamber 26, this part air communicating pipe 28 enters in the middle chamber 9, the gas of middle chamber 9 is given the certain pressure of coating, the inwall that makes its suitable funnel 27 down is to lower slider, because umbrella dividing plate 10 is housed on the end opening of upper hopper 8, coating in the funnel 27 can not sprayed in middle chamber 9, but the gas in the middle chamber can enter the chamber with the end opening by umbrella dividing plate 10 and upper hopper 8 of coating partly, when the air-flow that rises reaches pressure balance with the coating that glides, coating in the last chamber 4 no longer enters in the middle chamber 9, after spraying finishes, A.C. contactor 16 cuts off the power supply and the magnetic valve 20 of motor 18 automatically, 22 power supply, air inlet pipe 21 stops air feed, and the gas of air storage chamber 26 and middle chamber 9 is by

arm

25,19 enter for powder 13 clout are blown away, and play the effect of cleaning pipe.Air pressure in the air storage chamber 26 reduces to zero gradually, and the air pressure in the chamber 9 also drops to zero in making, because the bell mouth of upper hopper 8 fills up coating, so, last chamber 4 forms pressure differential with middle chamber 9, the pressure of chamber 9 during residue air pressure in the last chamber 4 is higher than, because powder resistance, the import that gas enters blanking tracheae 30 has certain speed, rush at the outlet of funnel 11 from managing 30 outlet, powder along with gas flow in the chamber 9, when powder is heaped the outlet of funnel 8 and had the resistance that enough makes progress and during dirty dynamic balance, powder is no longer dirty.After the spraying beginning, repeat above-mentioned circulation again.

The utility model has following advantage:

1, the utility model is easy to operate, and is safe in utilization.Because the upper hopper 8 of powder feeder, following funnel 27, base plate 11 links to each other with shell 29 and is divided into chamber 4, middle chamber 9, air storage chamber 26, in the following funnel 27 of chamber, the coating in the following funnel 27 glided along its inwall during the coating that stores in the last chamber can flow into automatically, effect by spiral propeller 23 pushes batch mixing chamber 24, and is whole for the whole automations of powder process.Simultaneously because the end opening of upper hopper is equipped with umbrella dividing plate 10, powder can not spray down funnel 27 and enter in communicating pipe 28, so air storage chamber 26 and air inlet pipe 25 all can not enter the coating powder, makes powder feeder safe in utilization, ensures the quality of products.

2, because the charging of middle chamber 9 following funnel 27 partly is smooth inclined-planes, there is not the dead angle, the gas that communicating pipe 28 enters is playing stirring action in the funnel 27 down, powder can compacting and is lumpd, coating in the batch mixing chamber 24 pushes by spiral propeller 23, mixes with gas while pushing, so also do not have dead angle and delay, batch mixing is even, guarantees for opaque amount and spraying effect.

3, the utlity model has the space of enough gas storage, when stop-spraying, purge for the clout in the tube cell 13, solved for tube cell 13 normal blocked problems with it in air storage chamber 26 and middle chamber 9.

4, owing to make full use of the effect of gas, arrange a blanking tracheae 31 in last chamber 4, it has the functional reliability height, has removed complicated pneumatic and electric device, has reduced cost.

5, owing to when carrying out the anticorrosion with painting operation, adopted optoelectronic switch 34, travel switch 33 is controlled whole spraying process, so, make spraying and supply all continuous and automatics of powder, and operation control to be simple and convenient, control is sensitive, easy-maintaining.

Description of drawings:

Fig. 1, full-automatic powder feeder structural representation.1 feed hopper, 2 valves, 3 peep holes, on 4 the chamber, 5 hand holes, 6 electrical equipment control indicator boards, 7 displays, 8 upper hoppers, in 9 the chamber, 10 material baffles, 12 Pressure gauges, 13 for tube cell, 14 Pressure gauges, 15 power tracheaes, 16 A.C. contactors, 17 gearboxes, 18 motors, 19 air inlet pipe, 20 magnetic valves, 21 total inlet pipes, 22 magnetic valves, 23 spiral propellers,

batch mixing chambers

24,25 air storage chamber air inlet pipe, 26 air storage chambers, 27 times funnels, 28 communicating pipes, 29 shells, 30 blanking tracheaes, 31 Pressure gauges.

Fig. 2: the schematic diagram of spraying pipe, 13 for tube cell, 15 power tracheaes, 34 optoelectronic switches, 32 injectors, 33 travel switches, 35 pipes that sprayed, pipe is swung in 36 sprays.

Automatically the spraying of confession powder is the travel switch 33 by auxiliary equipment, optoelectronic switch 34 is realized, embodiment below in conjunction with Fig. 2 is illustrated: the pipe 35 that is sprayed, under the effect of pipe transmission mechanism,

pass injector

32 and 36 straight lines travel forward with the direction of arrow a, when the head of pipe 35 knocks travel switch 33 feeler levers over, cut off the power supply of optoelectronic switch 34, make switch 34 ability of losing the job, pipe 35 passes through smoothly, the feeler lever of travel switch 33 sets back, and auto-closing is connected the power supply of optoelectronic switch 34, makes switch 34 in running order.Pipe transmission mechanism reverse drive, promoting pipe 35 advances along the direction of arrow b with certain speed, when pipe walks to optoelectronic switch 34 and covers the light of its photoelectric tube, optoelectronic switch 34 is open-minded automatically, power supply is passed to A.C. contactor 16, the motor 18 of its control is started, by gearbox 17, drive spiral propeller 23 with certain speed rotation, coating is pushed the mixer 24 from following funnel 27, meanwhile, magnetic valve 22 also passed to electric current by A.C. contactor 16, it is opened simultaneously, and Compressed Gas enters in the mixer 24, mixes with coating therein, from importing injectors 32 for tube cell 13, use for spraying, A.C. contactor 16 is also connected magnetic valve 20 simultaneously, and the driven solenoid 15 of power gas enters 36 annular space and drives injector 32 and begin spraying.After pipe 35 had all been sprayed, pipe was by behind the optoelectronic switch 34, and light directive photoelectric tube disconnects optoelectronic switch 34, thereby cuts off the power supply of A.C. contactor 16, and spraying is stopped automatically.When second pipe of spraying, repeat top process again.How to supply powder automatically, narrated in the above, when the spraying beginning, last chamber 4 stops to middle chamber 9 feed, after spraying stops, because the air pressure in the last chamber 4 is greater than middle chamber 9, under the coating automatic stream in the last chamber 4 in the funnel 27, guarantee that spiral propeller 23 to batch mixing chamber 26 feed, after spraying stops, repeating said process again.

Claims

1, the full-automatic powder feeder that is used for the anticorrosion supply powder of metal spraying shape coating is by feed hopper 1, valve 2, observation ward 3, last chamber 4, hand hole 5, appliance controling plate 6, display 7, upper hopper 8, middle chamber 9, material baffle 10, base plate 11, Pressure gauge 12, for tube cell 13, Pressure gauge 14, power tracheae 15, A.C. contactor 16, gearbox 17, motor 18, air inlet pipe 19, magnetic valve 20, total inlet pipe 21, magnetic valve 22, spiral propeller 23, batch mixing chamber 24, air storage chamber air inlet pipe 25, air storage chamber 26, following funnel 27, communicating pipe 28, shell 29, blanking tracheae 30, Pressure gauge 31, and with its optoelectronic switch that is used 34, travel switch 33 constitutes, the upper limb that it is characterized in that upper hopper 8 is tightly connected with shell 29, the upper limb of following funnel 27 also is tightly connected with shell 29, and powder feeder is divided into chamber 4 and middle chamber 9, and the bottom that base plate 11 passes down funnel 27 is tightly connected with shell 29, its same outer wall space of funnel 27 down is an air storage chamber 26, and communicating pipe 28 passes and is fixed on down on the wall of funnel 27 from air storage chamber 26.

2, full-automatic powder feeder according to claim 1 is characterized in that the end opening of upper hopper 8 connects a umbrella material baffle 10, and extend into down in the funnel 27, and display 7 and blanking tracheae 30 are housed on its inwall.

3, full-automatic powder feeder according to claim 1, it is characterized in that the end opening of funnel 27 connects with batch mixing chamber 24 down, the lower end of batch mixing chamber connects gearbox 17, end at it has motor 18 to link to each other with it, has A.C. contactor 16 coupled on the pedestal of motor 18, and spiral propeller 23 is at the center of batch mixing chamber 24, the one end extend into down in the mouth of funnel 27, the other end connects with gearbox 17, one side batch mixing chamber 24 has an air inlet pipe 19, another side has powder feeder 13.