WO2015000201A1 - 一种闭路循环的自动清理供粉装置 - Google Patents

一种闭路循环的自动清理供粉装置 Download PDF

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Publication number
WO2015000201A1
WO2015000201A1 PCT/CN2013/080184 CN2013080184W WO2015000201A1 WO 2015000201 A1 WO2015000201 A1 WO 2015000201A1 CN 2013080184 W CN2013080184 W CN 2013080184W WO 2015000201 A1 WO2015000201 A1 WO 2015000201A1
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WO
WIPO (PCT)
Prior art keywords
powder
powder supply
assembly
controllable
suction port
Prior art date
Application number
PCT/CN2013/080184
Other languages
English (en)
French (fr)
Inventor
柯儒群
Original Assignee
裕东（中山）机械工程有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 裕东（中山）机械工程有限公司 filed Critical 裕东（中山）机械工程有限公司
Publication of WO2015000201A1 publication Critical patent/WO2015000201A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/06—Gas pressure systems operating without fluidisation of the materials
    • B65G53/10—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas
    • B65G53/14—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas the gas flow inducing feed of the materials by suction effect

Definitions

  • the invention relates to a closed cleaning and automatic powder feeding device, belonging to the field of powder transportation.
  • the lifting mechanism 01 moves downward until the powder suction tube 02 is inserted into the powder of the powder bucket 03, and the powder pump of the powder pump 011
  • the gas supply starts, and the powder pump 011 generates a vacuum under the action of the powder feeding gas.
  • the powder fluidized by the fluidizing plate 031 in the fluidizing barrel 03 is transported by the powder suction tube 02, the powder pump 011, and the powder discharging tube 012 under the action of the negative pressure.
  • the atomizing gas supply of the powder pump 011 causes the powder to reach the atomizing effect and is sent to the spray gun 06.
  • the powder feeding gas and the atomizing gas of the powder pump 011 stop supplying air, manually remove the powder hopper 03, and the lifting mechanism 01 moves downward until the powder suction tube 02 is inserted into the high pressure cleaning air bag 05.
  • the high-pressure cleaning air bag 05 blows the powder line between the high-pressure cleaning gas cleaning powder suction pipe 02 and the spray gun 06 through the cleaning gas inlet 052 into the powder suction pipe 02.
  • the powder supply device has the following disadvantages: 1) The powder suction pump needs to manually remove the powder bucket 03 during cleaning, and the outer wall of the powder suction tube 02 needs manual cleaning, the degree of automation is low, and the cleaning trouble is complicated. 2) The inner wall of the powder bucket 03 cannot be automatically cleaned and needs to be cleaned manually.
  • the object of the present invention is to provide a closed-circuit automatic cleaning powder supply device, which can realize automatic cleaning of powder tubes, powder pumps, powder spraying and/or other application equipment, powder supply buckets and the like, and storage and distribution tubes without manual intervention.
  • the cleaning of the road is thorough and simple.
  • a closed-circuit automatic cleaning powder supply device comprising:
  • a powder supply bucket assembly the hollow inner cavity of the powder bucket assembly forming a container for storing powder
  • the top of the inner mandrel is nested inside the inner cavity, and a gap is left between the outer side wall of the top of the inner mandrel assembly and the inner side wall of the inner cavity of the powder supply hopper assembly;
  • a powder suction port disposed on the powder supply bucket assembly to supply powder to the outside;
  • At least 2 controllable seals are disposed on the powder supply bucket assembly or the inner core shaft assembly at a distance, and the controllable seal is used to close or open the gap, through different control of the controllable seal and the powder supply bucket assembly
  • the relative movement of the inner mandrel assembly results in a set of different operating states, the controllable seal sealing the powder supply bucket assembly and the inner core shaft assembly on one or both sides of the suction opening.
  • the above-mentioned closed-circuit automatic cleaning powder supply device is characterized in that: the bottom of the powder supply bucket assembly is provided with an opening communicating with the inner cavity, and the top of the inner core shaft assembly can protrude from the opening into the inner cavity.
  • the above-mentioned closed-circuit automatic cleaning powder supply device is characterized in that: the powder suction port is connected with a powder tube, a dusting powder, or other application equipment.
  • the above-mentioned closed-circuit automatic cleaning powder supply device is characterized in that: at least two controllable seals can be arranged on both sides of the powder suction port, and one controllable seal member is closed or opened for the powder supply bucket The passage of the powder in the assembly to the suction port, and the other controllable seal is to close or open the passage for the powder hopper assembly and the exterior.
  • the above-mentioned closed-circuit automatic cleaning powder supply device is characterized in that: the outer surface of the powder supply hopper assembly and the inner core shaft assembly is cylindrical.
  • the above-mentioned closed loop automatic cleaning powder supply device is characterized in that: the top of the inner core shaft assembly Lmm-20 ⁇ The gap between the outer side wall of the inner wall of the inner cavity of the hopper assembly is 0. lmm-20mm.
  • the above-mentioned closed-circuit automatic cleaning powder supply device is characterized in that: the expansion or contraction of the controllable seal is driven by compressed gas, or hydraulically driven or mechanically driven to realize the outer side of the top of the inner core shaft assembly The gap between the wall and the inner surface of the powder hopper assembly is closed and opened at different locations.
  • the above-mentioned closed loop automatic cleaning powder supply device is characterized in that: the inner core shaft assembly is provided with a fluidization plate, a discharge passage, a discharge valve, and the discharge valve is a powder discharge valve
  • the discharge valve is a flap discharge valve or a butterfly valve or a hose valve.
  • the above-mentioned closed-circuit automatic cleaning powder supply device is characterized in that: at least four different working states are obtained by different control of the controllable seal and relative movement of the powder supply bucket assembly and the inner core shaft assembly:
  • a controllable seal is located above the suction port to open the passage of the powder in the powder supply assembly to the suction port, and another controllable seal is located below the suction port to close the powder supply Components and external channels;
  • a controllable seal is located above the suction port to close the passage of the powder in the powder supply assembly to the suction port, and the other can be The control seal is located below the suction port to close the channel of the powder supply hopper assembly and the outside; the compressed air is used to clean the powder tube, powder pump and powder spray and/or other application equipment.
  • a controllable seal is located above the suction opening to open the passage of the powder in the powder supply assembly to the suction opening; another controllable seal is located below the suction opening, closed Supplying the powder hopper assembly and the external passage, closing the suction opening and the external passage; and introducing compressed air to clean the supply hopper assembly;
  • the above-mentioned closed-circuit automatic cleaning powder supply device is characterized in that: at least two controllable seals and a powder suction port are arranged on the powder supply bucket assembly, and a powder suction port is arranged between the controllable seals.
  • the above-mentioned closed-circuit automatic cleaning powder supply device is characterized in that: at least two controllable seals and a powder suction port are disposed on the inner core shaft assembly, and a powder suction port is arranged between the controllable seal members.
  • the above-mentioned closed-circuit automatic cleaning powder supply device is characterized in that: one piece of controllable seal is arranged on the powder supply bucket assembly, and the other one controllable seal is arranged on the inner core shaft assembly, which is controllable A powder suction port is provided between the seals.
  • the powder supply hopper assembly and the inner core shaft assembly are moved relative to each other to obtain corresponding different combinations of positions, and the gap between the powder supply hopper assembly and the inner core shaft assembly is controlled by the controllable seal on both sides of the suction opening. Closed and opened separately, and different channel combinations are formed to provide a powder path or a compressed gas path to achieve different states.
  • the structure is simple, and the switching between powder supply, cleaning, and path passage can be automated.
  • the gap between the powder supply bucket assembly and the inner core shaft assembly is closed and opened by the controllable seal.
  • the seal is reliable and leak-free, and the cleaning is quicker and more thorough.
  • the powder container can be automatically cleaned, which can greatly shorten the cleaning requirements. time.
  • Figure 1 is a schematic view showing the structure of a conventional powder supply device in a powder supply state.
  • Figure 2 is a schematic view showing the structure of the existing powder supply device during cleaning.
  • Fig. 3 is a schematic structural view showing the principle of the powder supply state of the present invention.
  • Figure 4 is a schematic view showing the structure of the state of the cleaning powder tube, the powder pump, the powder spraying and/or other application equipment according to the present invention.
  • Fig. 5 is a schematic structural view showing the principle of the unloading state of the present invention.
  • Fig. 6 is a structural schematic view showing the principle of cleaning the internal state of the powder supply hopper assembly according to the present invention.
  • Fig. 7 is a structural schematic view showing the principle of the manual inspection state of the present invention.
  • Fig. 8 is a schematic view showing the structure of a typical embodiment of the present invention in a powder supply state.
  • Fig. 9 is a structural schematic view showing the state of cleaning powder tubes, powder pumps, dusting and/or other application equipment according to an exemplary embodiment of the present invention.
  • Figure 10 is a schematic view showing the structure of the exemplary embodiment of the present invention in the unloading state.
  • Figure 11 is a schematic view showing the structure of the internal state of the powder supply hopper assembly according to an exemplary embodiment of the present invention.
  • FIG. 12 is a schematic structural view of a manual inspection state according to an exemplary embodiment of the present invention.
  • Figure 13 is a schematic view showing the structure of an exemplary embodiment 2 of the present invention in a powder supply state.
  • Fig. 14 is a structural schematic view showing the state of cleaning powder tubes, powder pumps, powder spraying and/or other application equipment according to an exemplary embodiment of the present invention.
  • Figure 15 is a schematic view showing the structure of the exemplary embodiment 2 of the present invention in the unloading state.
  • FIG. 16 is a schematic structural view of the exemplary embodiment 2 of the present invention in cleaning the internal state of the powder supply bucket assembly.
  • FIG. 17 is a schematic structural diagram of a manual inspection state according to an exemplary embodiment of the present invention.
  • a closed-circuit automatic cleaning powder supply device includes a powder supply bucket assembly 1 and an inner core shaft assembly 2, and the inside of the powder supply bucket assembly 1 is stored.
  • the inner cavity of the powder 6, the powder supply bucket assembly 1 or the inner core shaft assembly 2 is provided with at least two controllable seals 33 34 , and the sealing positions 31 32 are respectively disposed on both sides of the powder suction port 131 for the powder bucket assembly 1
  • the inner mandrel assembly 2 can be moved relative to each other and closed or opened by the controllable seal 33 or 34 to form different powders and clean the air passage combination to achieve the desired working condition.
  • the powder supply hopper assembly is provided with a powder suction port 131, and the powder suction port 131 is connected to the dusting system 5.
  • the dusting system 5 includes a powder tube, a powder pump, a dusting powder, and other application equipment.
  • controllable seals are arranged on both sides of the powder suction port 131, and a controllable seal ring 34 is a passage 42 for closing the powder in the powder supply bucket assembly 1 to the powder suction port 131, and a controllable seal member 33 is closed for powder supply.
  • the bucket assembly 1 is identical to the outer passage 43.
  • the outer surface 209 of the inner mandrel assembly 2 and the controllable seal 33 or 34 is cylindrical, preferably cylindrical, and of course non-cylindrical.
  • the inner core shaft assembly 2 and the inner cavity of the powder supply bucket assembly 1 have a clearance of 0.1 to 20, which facilitates the relative movement between the inner core shaft assembly 2 and the powder supply bucket assembly 1.
  • the controllable seal 33 34 can be driven by a compressed gas, or hydraulically driven or otherwise mechanically configured to close and open the gap between the outer surface 209 of the inner mandrel assembly 2 and the inner surface 12 of the powder supply hopper assembly 1 at different locations. .
  • the inner core shaft assembly 2 is provided with a fluidization plate 204 and a discharge valve 23, and a fluidization gas chamber 222 is disposed below the fluidization plate 204, and the fluidization gas 72 is externally introduced to the fluidization gas chamber 222 to make the powder supply bucket assembly 1
  • the internal powder 6 is in a flowing state, and the delivered powder is more uniformly mixed.
  • the discharge valve 23 can recover the unused powder 6 in the powder supply bucket assembly 1 in time for cleaning.
  • the discharge valve 23 described above is a powder discharge valve, and the discharge valve is a flap discharge valve or a butterfly valve or a hose valve.
  • the working principle of the invention is: the powder feeder assembly 1 and the inner mandrel assembly 2 are relatively moved, and the sealing or opening of the controllable sealing member 33 or 34 forms a different powder cleaning gas passage combination, that is, different work is formed. State, produce the required powder supply status, clean the powder tube, powder pump and powder spray and/or other application equipment status, discharge status, clean the internal state of the powder supply assembly and manual inspection work status.
  • Powder supply state As shown in Fig. 3, the inner mandrel assembly 2 is moved relative to the powder supply bucket assembly 1 to the position where the controllable seal 33 is at 32, the controllable seal 33 closes the passage 43, and the fluidizing gas 72 is introduced from the outside to
  • the fluidizing chamber 222 is configured to flow the powder 6 inside the powder supply hopper assembly 1 to start the dusting system 5, and the powder 6 in the powder supply bucket assembly 1 is made up of the powder suction port 131. It is sent to the dusting system 5 to achieve powder supply.
  • the passages 42, 43 are part of the inner mandrel assembly 2 and the inner cavity of the powder supply bucket assembly 1 with a clearance reserved.
  • the controllable seal 33 is appropriately controlled to enable relative movement between the inner core shaft assembly 2 and the powder supply bucket assembly 1
  • the powder 6 does not overflow from the passages 42, 43 to the outside
  • the inner mandrel assembly 2 is relatively moved with the powder supply bucket assembly 1 to the controllable seal 33 at the 32 position
  • the controllable seal 34 is at the 31 position
  • the controllable seal 34 Closing the passage 42
  • the controllable seal 33 remains at the position 32 and continues to hold the closed passage 43
  • the high pressure purge gas 71 is introduced from the outside into the suction opening 131
  • the high-pressure cleaning gas entering the zone 41 is then cleaned by the powder pipe, the powder pump, the dusting powder, or other application equipment sprayed into the dusting system 5 through the powder suction port 131.
  • Unloading state As shown in FIG. 5, the inner core shaft assembly 2 and the powder supply bucket assembly 1 are still in the cleaning position as shown in FIG. 4, and the controllable sealing rings 34, 33 continue to be at positions 31 and 32, respectively, and respectively close the passage 42, 43.
  • the discharge valve 23 opens the powder 6 and is removed from the discharge hopper assembly 1 by the discharge passage 223.
  • Manual inspection state As shown in FIG. 7, after the cleaning is completed, the controllable seal 33 is controlled to open the passage 43, and the powder hopper assembly 1 and the inner core assembly 2 are relatively moved to the inner core assembly 2 to leave the powder supply assembly 1
  • the inner chamber is manually inspected for the condition of the inner core shaft assembly 2 and the powder supply bucket assembly 1.
  • a closed loop automatic cleaning powder supply device includes a powder supply bucket assembly 1 and an inner core assembly 2.
  • the controllable seal adopts a pneumatic control seal ring, and the number of the air control seal ring is two, which are all installed on the powder supply bucket assembly 1 and fixed by the powder supply bucket assembly 1, and the inner core shaft assembly 2 is in the inner cavity of the powder supply bucket assembly 1. Move in.
  • the powder supply hopper assembly 1 is composed of a powder storage hopper 11, a suction ring 13, a pressure plate 15, and intake rings 32, 31 for mounting and supporting the air control seals 33, 34.
  • the storage hopper 11 is provided with a cavity 111 for accommodating The inner wall of the inner cavity 111 is of a cylindrical shape, and the opening 112 is provided at the bottom of the powder hopper assembly 1 to communicate with the inner cavity 111.
  • the opening 112 is used for the inner mandrel assembly 2 to enter the inner cavity 111, and the suction ring 13 is provided with the inner cavity.
  • 111 connected powder suction port 131.
  • An air control seal 33, 34 is arranged on each side of the suction port 131, and an intake port 35 is arranged on the intake ring 31.
  • the intake ring 32 is provided with an air inlet 36, and the air inlets 35 and 36 are gas. Control the introduction and discharge of compressed gas during the intake or pumping of the seal.
  • the inner mandrel assembly 2 includes an inner mandrel main body 202, a base 201, a fluidization plate 204, and a discharge valve 23.
  • the inner mandrel main body 202 is externally mounted with a base 201, and the inner mandrel main body 202 is provided with a discharge passage 223 in the middle thereof.
  • the passage 223 is connected to the inner chamber 111, the other end is provided with a discharge valve 23, and the discharge valve 23 is opened to remove the powder 6 in the powder storage hopper 11. When closed, the discharge passage can be sealed to keep the powder in the hopper 11 Inside.
  • a fluidizing chamber 222 is disposed on the upper portion of the inner mandrel main body 202, and a fluidizing plate 204 is disposed above the fluidizing gas chamber.
  • the base 201 is provided with a high pressure cleaning gas passage 211 and a fluidizing gas passage 224, which are introduced from the fluidizing gas passage 224.
  • the fluidizing gas is supplied to the fluidizing chamber 222 to the fluidizing plate 204 to cause the powder in the powder storage hopper 11 to be in a flowing state, and the high-pressure cleaning gas can be introduced from the fluidizing gas passage 224 during cleaning to realize the cleaning of the fluidizing plate 204, and the high pressure.
  • the purge gas passage 211 is used to introduce a high pressure purge gas to the powder supply bucket assembly 1 and dusting and/or other applications during cleaning
  • the device 5 performs cleaning, and a gap of 1 to 4 mm is reserved between the outer wall of the inner core shaft assembly 2 and the inner wall of the powder supply bucket assembly 1.
  • the powder supply bucket assembly 1 moves within the inner cavity of the inner mandrel assembly 2, and a controllable compressed gas is introduced into the air control seal ring 34 or 33 by the air inlet 35 or 36 to cause the air control seal ring 34 or 33 to contract or
  • the expansion opens or closes the gap between the inner wall of the powder supply bucket assembly 1 and the outer wall of the inner core shaft assembly 2, and forms different passages on both sides of the powder suction port 131 for supplying powder or cleaning gas, thereby realizing the required three working positions: Powder position, cleaning position and inspection position, and five combined working conditions: Please see the following description:
  • the position of the powder supply is as shown in Fig. 8.
  • the upper end surface of the fluidization plate 204 on the inner mandrel assembly 2 is the same as the lower controllable seal ring 33 on the same side of the suction port 131 and the inner mandrel assembly 2 does not leave the inner cavity 111.
  • the inner core shaft assembly 2 moves to the powder supply position in the inner cavity of the powder supply bucket assembly 1, closes the discharge valve 23, and introduces a controllable compressed gas from the air inlet 36 to seal the air control.
  • the ring 33 is inflated and inflated to hold the side wall 221 of the inner mandrel main body 202, thereby sealing the passage of the powder supply hopper assembly 1 to the outside.
  • the powder supply system (not shown) is opened, and the small-pressure fluidizing gas 72 is introduced into the fluidizing gas chamber 222 from the fluidizing gas passage 224 of the inner mandrel assembly 2 to the fluidizing plate 204, so that the powder feeding bucket
  • the powder 6 in the inner cavity of the assembly 1 is in a flowing state, the dusting system 5 is turned on, and the powder 6 supplied to the inner cavity of the powder hopper assembly 1 is supplied from the powder suction port 131 to the dusting system 5.
  • the side wall 221 of the shaft body 202 blocks the powder passage between the inner chamber 111 and the powder suction port 131, and the high-pressure cleaning gas 71 is introduced from the cleaning gas passage 211.
  • the high-pressure cleaning gas 71 enters the powder tube and the powder pump from the powder suction port 131. And powder coating equipment to clean it.
  • Discharge state As shown in FIG. 10, the inner core shaft assembly 2 and the powder supply bucket assembly 1 are still in the cleaning position, the dusting system 5 and the powder supply system are still in the closed state, and the introduction of the high pressure cleaning gas from the cleaning gas passage 211 is stopped.
  • the introduction of the small-pressure fluidizing gas 72 from the fluidizing gas passage 224 continues to cause the powder 6 in the powder supply hopper assembly 1 to be in a flowing state, opening the discharge valve 23, and the powder 6 in the powder supply bucket assembly 1 is detached from the discharge passage 223. , the powder 6 in the powder supply bucket assembly 1 is emptied to achieve a discharge state.
  • the high-pressure purge gas 71 introduced by the purge gas passage 211 enters the interior of the powder supply hopper from the gap between the side wall 221 of the inner core shaft main body 202 and the inner wall of the powder supply hopper assembly 1, and the fluidization gas passage 224
  • the introduced small-pressure fluidizing gas 72 is converted into a high-pressure cleaning gas 73, and after entering the fluidizing gas chamber 222, the fluidizing plate is cleaned, thereby achieving cleaning of the interior of the powder-filling hopper assembly 1.
  • a closed-circuit automatic cleaning powder supply device includes a powder supply bucket assembly 1 and an inner core shaft assembly 2.
  • the controllable seal adopts the air control seal ring, and the number of the air control seal ring is two, one piece is installed on the powder supply bucket assembly 1 and the other piece is mounted on the inner core shaft assembly 2, and the powder bucket assembly 1 is fixed, the inner core
  • the shaft assembly 2 moves in the interior of the powder supply bucket assembly 1.
  • the powder supply bucket assembly 1 is composed of a powder storage bucket 11, a suction ring 13, a pressure plate 15, a moving plate 16, and an intake ring 32 for mounting and supporting the air control seal 33.
  • the storage hopper 11 is provided with a cavity 111 for accommodating The inner wall of the inner cavity 111 is of a cylindrical shape, and the opening 112 of the inner side of the powder hopper assembly 1 is in communication with the inner cavity 111.
  • the opening 112 is used for the inner core shaft assembly 2 to enter the inner cavity 111, and the wall surface of the powder hopper assembly 1 is disposed.
  • a powder suction port 131 that communicates with the inner cavity 111.
  • An air control seal 33, 34 is arranged on each side of the suction port 131, and an intake port 35 is arranged on the intake ring 31.
  • the intake ring 32 is provided with an air inlet 36, and the air inlets 35 and 36 are gas.
  • the compressed gas introduction and discharge port when the intake ring is sucked or pumped, and the high pressure clean air passage 211 is provided between the suction ring 13 and the moving plate 16, and the moving plate 16 moves downward to open the high pressure clean air passage during cleaning. 211.
  • the high pressure cleaning gas 71 introduced by the high pressure cleaning gas passage 211 cleans the powder supply bucket assembly 1 and the powder spraying and/or other application equipment 5.
  • the inner mandrel assembly 2 includes an inner mandrel main body 202, a base 201, a fluidization plate 204 and a discharge valve 23, and an intake ring 31 for mounting and supporting the air control seal ring 34.
  • the base 201 and the inner mandrel main body 202 are An intake ring 31 and a controllable seal ring 34 are disposed between each other, and a discharge passage 223 is disposed in the middle of the inner core shaft main body 202, a discharge passage 223 is connected to the inner chamber 111, and the other end is provided with a discharge valve 23, and the discharge valve 23 is opened.
  • the powder 6 in the hopper 11 can be removed, and the discharge passage can be sealed to keep the powder in the hopper 11.
  • a fluidizing chamber 222 is disposed on an upper portion of the inner mandrel main body 202.
  • a fluidizing plate 204 is disposed above the fluidizing gas chamber, and a fluidizing gas passage 224 is disposed on the inner mandrel main body 202, and the flow is introduced from the fluidizing gas passage 224.
  • the chemical gas to the fluidizing chamber 222 acts on the fluidizing plate 204 to make the powder in the powder storage hopper 11 in a flowing state, and the high-pressure cleaning gas can be introduced from the fluidizing gas passage 224 during cleaning to realize the cleaning of the fluidizing plate 204.
  • a gap of 1 to 4 mm is reserved between the outer wall of the shaft assembly 2 and the inner wall of the powder supply bucket assembly 1.
  • the powder supply bucket assembly 1 moves within the inner cavity of the inner mandrel assembly 2, and a controllable compressed gas is introduced into the air control seal ring 34 or 33 by the air inlet 35 or 36 to cause the air control seal ring 34 or 33 to contract or
  • the expansion opens or closes the gap between the inner wall of the powder supply bucket assembly 1 and the outer wall of the inner core shaft assembly 2 to form different passages on both sides of the powder suction port 131 for supplying powder or cleaning gas, thereby realizing the required three working positions: Location, cleaning location and inspection location, and five working states.
  • the outer wall 214 of the base 201 can be cleaned during powder supply or cleaning, or the lower controllable seal ring 33 can be inflated, so that the lower controllable sealing ring can hold the outer wall 214 of the base 201 to make the powder supply state.
  • the seal between the powder supply bucket assembly 1 and the inner mandrel assembly 2 is more reliable.
  • Powder supply position The upper end surface of the fluidization plate 204 on the inner mandrel assembly 2 is the same as the lower controllable seal ring 33 on the same side of the suction port 131 and the inner mandrel assembly 2 does not leave the inner cavity 111.
  • the upper end surface of the fluidizing plate 204 on the inner mandrel assembly 2 and the controllable sealing ring 33 are respectively on both sides of the powder suction port 131.
  • the inner core is the same as the upper end of the fluidization plate 204 on the assembly 2, and the controllable seal ring 33 is on the same side of the suction port 131 and the inner mandrel assembly 2 leaves the inner cavity 111.
  • the powder supply state is as shown in FIG. 13, the inner core shaft assembly 2 moves to the powder supply position in the inner cavity of the powder supply bucket assembly 1, and the controllable compressed gas is introduced from the air inlet 35 to inflate the air control seal ring 34.
  • the inner wall of the ring 13 seals the passage of the powder hopper assembly 1 to the outside.
  • the powder supply system (not shown) is opened, and the small-pressure fluidizing gas 72 is introduced into the fluidizing gas chamber 222 from the fluidizing gas passage 224 of the inner mandrel assembly 2 to the fluidizing plate 204, so that the powder feeding bucket
  • the powder 6 in the inner cavity 111 of the assembly 1 is in a flowing state, the dusting system 5 is turned on, and the powder 6 in the inner cavity 111 of the powder hopper assembly 1 is made up of the powder suction port 131.
  • the powder discharging system 5 is supplied.
  • the outer wall 214 of the base 201 can also be cleaned at the same time: the lower controllable sealing ring 33 is sucked by the air inlet 36, the lower controllable sealing ring 33 is contracted, and the moving moving plate 16 is opened to open the high-pressure cleaning gas passage 211.
  • the high pressure purge gas passage 211 introduces a high pressure purge gas to clean the outer wall 214 of the base 201.
  • Compressed gas may also be introduced from the air inlet 36 to expand the lower controllable seal ring to the outer wall 214 of the base 201 to seal the gap between the outer wall 214 and the moving plate to make the seal more reliable.
  • the state of cleaning the powder tube, powder pump and powder spray and/or other application equipment is as shown in Fig. 14, and the pressure of the controllable compressed gas introduced by the air inlet 36 is appropriately controlled so that the controllable seal ring 33 and the inner core shaft assembly 2 and the powder supply bucket assembly 1 can be moved relative to each other without the powder 6 overflowing from the gap between the inner core shaft assembly 2 and the powder supply bucket assembly 1 to the outside, and the upper controllable sealing ring 34 by the air inlet 35 Pumping, shrinking the upper controllable seal 34, moving the inner mandrel assembly 2 to the cleaning position, controlling the pressure of the compressed gas introduced by the air inlet 36 to hold the lower controllable seal 33 against the side wall 214 of the base 201 At the same time, the controllable compressed gas is introduced into the air inlet 35 to inflate the upper air control seal ring to press the inner wall of the powder supply bucket assembly 1, and block the powder passage between the inner cavity 111 and the powder suction port 131, and move the moving plate 16
  • the unloading state is as shown in Fig. 15, the inner core shaft assembly 2 and the powder supply bucket assembly 1 are still in the cleaning position, the dusting system 5 and the powder supply system are still in the closed state, and the introduction of the high pressure cleaning gas from the cleaning gas passage 211 is stopped.
  • the small air pressure fluidizing gas 72 is introduced from the fluidizing gas passage 224 to cause the powder 6 in the powder supply bucket assembly 1 to be in a flowing state, and the discharge valve 23 is opened, and the powder 6 in the powder supply bucket assembly 1 is removed from the discharge passage 223.
  • the powder 6 in the powder supply bucket assembly 1 is emptied to achieve a discharge state.
  • the moving moving plate 16 opens the high-pressure cleaning gas passage 211, and the high-pressure cleaning gas passage 211 introduces the high-pressure cleaning gas 71, which is formed by the side wall of the base 201 and the side wall 221 of the inner core shaft main body 202 and the powder supply bucket assembly 1.
  • the gap between the inner walls enters the inside of the powder supply hopper assembly 1, and the small-pressure fluidizing gas 72 introduced by the fluidizing gas passage 224 is converted into the high-pressure cleaning gas 73, and after entering the fluidizing gas chamber 222, the fluidizing plate is cleaned, so that The cleaning of the interior of the powder supply bucket assembly 1 is achieved.
  • Controlling the controllable seals 34 and 33 also allows clearance of the gap between the bottom 201 and the moving plate 16 while the inside of the powder supply hopper assembly 1 is being cleaned.
  • the manual inspection state is as shown in Fig. 17, and the inner core shaft assembly 2 is moved to the inspection position, and the working conditions and cleaning conditions of the components of the powder supply bucket assembly 1 and the inner core shaft assembly 2 are checked.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
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Abstract

一种闭路循环的自动清理供粉装置，包括供粉斗组件（1）和内芯轴组件（2）。供粉斗组件（1）或内芯轴组件（2）上设有最少2件可控密封件（33，34），供粉斗组件（1）与内芯轴组件（2）做相对移动，供粉斗组件（1）与内芯轴组件（2）通过相对移动得到对应的几个不同的组合位置，并由可控密封件（33，34）在设定的吸粉口（131）一侧及另一侧的密封位置对供粉斗组件（1）和内芯轴组件（2）进行密封。通过可控密封件的开启或关闭形成不同的粉末、清理气通道组合，产生所需的供粉、清理粉管、粉泵及喷粉机或其它应用设备、卸料、清理供粉斗组件内部、人工检查等工作状态。所述供粉装置可实现供粉、清理通道之间的自动切换，由可控密封件调整间隙，调整方便且密封可靠，清理简单方便、彻底。

Description

一种闭路循环的自动清理供粉装置
【技术领域】
本发明涉及一种闭路循环的自动清理供粉装置， 属于粉末输送领域。
【背景技术】
现有的半自动清理功能的供粉装置， 其在供粉状态时， 如图 1所示， 升降机构 01向 下运动直到吸粉管 02插入粉斗 03的粉末内， 粉泵 011的送粉气开始供气， 在送粉气的作 用下粉泵 011产生真空， 流化桶 03内经流化板 031流化的粉末在负压作用下经吸粉管 02、 粉泵 011、 出粉管 012输送到喷枪 06; 同时， 粉泵 011的雾化气供气使粉末达到雾化效果 输送到喷枪 06。 在清理时， 如图 2所示， 粉泵 011的送粉气、 雾化气停止供气， 人工移开 粉斗 03， 升降机构 01向下移动直到吸粉管 02插入高压清理气包 05的密封圈 051内， 高 压清理气包 05通过其清理气入口 052向吸粉管 02内吹入高压清理气清理吸粉管 02到喷枪 06之间的粉末管路。
此供粉装置存在如下缺点： 1 ) 吸粉泵在清理时需要人工移开粉斗 03， 吸粉管 02外壁 需要人工清理， 自动化程度低， 清理麻烦复杂。 2 ) 粉斗 03 内壁无法实现自动清理， 需人 工清理。
【发明内容】
本发明的目的在于提供一种闭路循环的自动清理供粉装置， 无需人工干预， 即可实现 自动清理粉管， 粉泵及喷粉及、 或其它应用设备、 供粉斗等粉末储存及流通管路的清理， 清理彻底、 简便。
本发明是通过如下技术方案来实现的：
一种闭路循环的自动清理供粉装置， 包括：
一供粉斗组件， 供粉斗组件中空的内腔形成储存粉末的容器；
一芯轴组件， 内芯轴的顶部嵌套在内腔里面， 内芯轴组件的顶部的外侧壁与供粉斗组 件的内腔里面的内侧壁之间留有间隙；
一吸粉口， 设置在所述的供粉斗组件上， 向外部供给粉末；
至少 2件可控密封件设置在供粉斗组件或内芯轴组件上， 且相隔一段距离， 可控密封 件用于封闭或者打开间隙， 通过对可控密封件的不同控制和供粉斗组件与内芯轴组件相对 移动得到设定的几个不同的工作状态， 所述可控密封件在吸粉口一侧或两侧对供粉斗组件 和内芯轴组件进行密封。
上述所述的一种闭路循环的自动清理供粉装置， 其特征在于： 供粉斗组件底部设置开 口与内腔连通， 内芯轴组件的顶部可从开口伸入内腔内部。
上述所述的一种闭路循环的自动清理供粉装置， 其特征在于： 所述的吸粉口与粉管、 喷粉及、 或其它应用设备相连。
上述所述的一种闭路循环的自动清理供粉装置， 其特征在于： 所述至少 2件可控密封 件可布置在吸粉口两侧， 一件可控密封件是封闭或者开启供粉斗组件内的粉末到吸粉口的 通道， 另一件可控密封件是封闭或者开启供粉斗组件和外部的通道。
上述所述的一种闭路循环的自动清理供粉装置， 其特征在于： 所述的供粉斗组件和内 芯轴组件配合的外表面为柱形。
上述所述的一种闭路循环的自动清理供粉装置， 其特征在于： 所述的内芯轴组件的顶 部的外侧壁与供粉斗组件的内腔里面的内侧壁之间的间隙范围是 0. lmm-20mm。 上述所述的一种闭路循环的自动清理供粉装置， 其特征在于： 可控密封件的膨胀或收 縮通过压縮气体驱动， 或者液压驱动或机械结构驱动， 实现内芯轴组件的顶部的外侧壁和 供粉斗组件内表面之间的间隙在不同位置的封闭和开启。
上述所述的一种闭路循环的自动清理供粉装置， 其特征在于： 所述内芯轴组件上设有 流化板、 卸料通道、 卸料阀， 所述卸料阀为粉末卸料阀， 所述卸料阀为翻板式卸料阀或者 蝶阀或者软管阀。
上述所述的一种闭路循环的自动清理供粉装置， 其特征在于： 通过对可控密封件的不 同控制并使供粉斗组件与内芯轴组件相对移动得到至少 4种不同的工作状态：
A) 供粉状态 ： 一件可控密封件位于吸粉口上方， 打开供粉斗组件内的粉末到吸粉口 的通道， 另一件可控密封件位于吸粉口下方， 封闭供粉斗组件和外部的通道；
B)清理粉管， 粉泵及喷粉及、 或其它应用设备状态： 一件可控密封件位于吸粉口上方， 封闭供粉斗组件内的粉末到吸粉口的通道， 另一件可控密封件位于吸粉口下方， 封闭供粉 斗组件和外部的通道； 通入压縮空气对粉管， 粉泵及喷粉及、 或其它应用设备进行清理。
C)清理供粉组件内部状态： 一件可控密封件位于吸粉口上方， 打开供粉斗组件内的粉 末到吸粉口的通道； 另一件可控密封件位于吸粉口下方， 封闭供粉斗组件和外部的通道， 关闭吸粉口与外部通道； 通入压縮空气对供粉斗组件进行清理；
D)人工检查状态： 可控密封件处于放松状态， 使供粉斗组件和内芯轴组件相当移动至 完全分离位置， 可供人员进行检查操作。
上述所述的一种闭路循环的自动清理供粉装置， 其特征在于： 至少 2件可控密封件和 吸粉口都设置在供粉斗组件上， 可控密封件之间设置吸粉口。
上述所述的一种闭路循环的自动清理供粉装置， 其特征在于： 至少 2件可控密封件和 吸粉口都设置在内芯轴组件上， 可控密封件之间设置吸粉口。
上述所述的一种闭路循环的自动清理供粉装置， 其特征在于： 1 件可控密封件设置在 供粉斗组件上， 另 1件可控密封件设置在内芯轴组件上， 可控密封件之间设置吸粉口。
本发明与现有技术相比具有以下优点：
1. 供粉斗组件同内芯轴组件做相对移动得到对应的几个不同组合位置， 并由可控密 封件在吸粉口两侧对供粉斗组件同内芯轴组件之间的间隙进行分别封闭与开启， 而形成不同的通道组合提供给粉末路径或压縮气体路径来实现不同的状态。 结构 简单， 供粉、 清理、 路径通道之间的切换可实现自动化。
2. 供粉斗组件与内芯轴组件之间的间隙是靠可控密封件封闭和开启， 密封可靠无泄 漏， 清理更快捷和彻底， 对于粉末容器可实现自动清理， 可大幅縮短清理所需时 间。
【附图说明】
图 1 为现有供粉装置在供粉状态时的结构示意图。
图 2 为现有供粉装置在清理时的结构示意图。
图 3 为本发明供粉状态原理说明结构示意图。
图 4为本发明清理粉管， 粉泵及喷粉及、 或其它应用设备状态原理说明结构示意图。 图 5为本发明卸料状态原理说明结构示意图。
图 6为本发明清理供粉斗组件内部状态原理说明结构示意图。 图 7为本发明人工检查状态原理说明结构示意图。
图 8是本发明典型实施例一在供粉状态时的结构示意图。
图 9是本发明典型实施例一在清理粉管、 粉泵及喷粉及、 或其它应用设备状态的结构 示意图。
图 10为本发明典型实施例一在卸料状态时的结构示意图。
图 11为本发明典型实施例一在清理供粉斗组件内部状态时的结构示意图。
图 12为本发明典型实施例一人工检查状态的结构示意图。
图 13是本发明典型实施例二在供粉状态时的结构示意图。
图 14是本发明典型实施例二在清理粉管、粉泵及喷粉及、或其它应用设备的状态时的 结构示意图。
图 15为本发明典型实施例二在卸料状态时的结构示意图。
图 16为本发明典型实施例二在清理供粉斗组件内部状态时的结构示意图。
图 17为本发明典型实施例二在人工检查状态的结构示意图。
【具体实施方式】
如图 3、 图 4、 图 5、 图 6、 图 7所示， 一种闭路循环的自动清理供粉装置， 包括供粉 斗组件 1和内芯轴组件 2， 供粉斗组件 1内部设置存储粉末 6的内腔， 供粉斗组件 1或内 芯轴组件 2上设有至少两道可控密封件 33 34， 密封位置 31 32分别设置在吸粉口 131 的两侧， 供粉斗组件 1与内芯轴组件 2可以做相对移动， 并由可控密封件 33或 34的封闭 或者开启形成不同的粉末、 清理气通道组合， 从而实现所需的工作状态。
供粉斗组件上设有吸粉口 131， 吸粉口 131与喷粉系统 5相连。 所述的喷粉系统 5包 括粉管， 粉泵及喷粉及、 或其它应用设备。
两道可控密封件布置在吸粉口 131两侧，一道可控密封圈 34是封闭供粉斗组件 1内的 粉末到吸粉口 131的通道 42， 一道可控密封件 33是封闭供粉斗组件 1同外部的通道 43。
内芯轴组件 2和可控密封件 33或 34配合的外表面 209为柱形， 最佳为圆柱形， 当然 非圆柱形也可以。
内芯轴组件 2和供粉斗组件 1之内腔预留 0. 1〜20 的间隙， 便于实现内芯轴组件 2 和供粉斗组件 1之间的相对移动。
可控密封件 33 34可为压縮气体驱动、 或者液压驱动或其他机械结构驱动， 实现内芯 轴组件 2外表面 209和供粉斗组件 1内表面 12之间的间隙在不同位置封闭和开启。
内芯轴组件 2上设有流化板 204、 卸料阀 23， 流化板 204下方设有流化气室 222， 由 外引入流化气 72到流化气室 222使供粉斗组件 1内部的粉末 6处于流动状态，输送的粉末 混合更均匀， 卸料阀 23在清理时可以把供粉斗组件 1内未使用完的粉末 6及时回收。
上述所述卸料阀 23为粉末卸料阀， 所述卸料阀为翻板式卸料阀或者蝶阀或者软管阀。 本发明的工作原理是： 供粉斗组件 1与内芯轴组件 2在做相对移动， 并由可控密封件 33或 34的封闭或者开启形成不同的粉末清理气通道组合， 即形成不同的工作状态， 产生 所需的供粉状态、 清理粉管， 粉泵及喷粉及、 或其它应用设备的状态、 卸料状态、 清理供 粉斗组件内部状态及人工检查工作状态。
供粉状态： 如图 3所示， 内芯轴组件 2同供粉斗组件 1相对移动到可控密封件 33处于 32位置， 可控密封件 33关闭通道 43， 由外部引入流化气 72到流化气室 222， 使供粉斗组 件 1 内部粉末 6处于流动状态， 启动喷粉系统 5， 供粉斗组件 1 内的粉末 6由吸粉口 131 被输送到喷粉系统 5， 实现粉末供应。 通道 42、 43是内芯轴组件 2和供粉斗组件 1之内腔 预留间隙的一部分。
清理粉管， 粉泵及喷粉及、 或其它应用设备的状态： 如图 4所示， 适当控制可控密封 件 33使内芯轴组件 2同供粉斗组件 1之间能做相对移动而粉末 6不会从通道 42、 43溢到 外部， 内芯轴组件 2同供粉斗组件 1相对移动到可控密封件 33处于 32位置， 可控密封件 34处于 31位置， 可控密封件 34关闭通道 42， 可控密封件 33仍于 32位置并继续保持封闭 通道 43、 由外部引入高压清理气体 71进入到吸粉口 131、 供粉斗组件 1 内表面 12、 可控 密封件 33、 34围成的区域 41， 进入 41区的高压清理气体再由通过吸粉口 131喷射到喷粉 系统 5的粉管， 粉泵及喷粉及、 或其它应用设备进行清理。
卸料状态： 如图 5所示， 内芯轴组件 2同供粉斗组件 1仍处于如图 4的清理位置， 可 控密封圈 34、 33继续分别处于 31、 32位置并分别封闭通道 42、 43， 卸料阀 23打开粉末 6 由供粉斗组件 1内从卸料通道 223卸下回收。
清理供粉斗组件内部状态： 如图 6所示， 内芯轴组件 2同供粉斗组件 1仍处于如图 4 的清理位置， 可控密封件 33继续关闭通道 43， 卸料阀 23处于开启状态， 关闭喷粉系统 5 通道， 可控密封件 34开启， 打开通道 42并继续保持在 41区引入高压清理气体 71， 在 41 区的高压清理气体 71 由通道 42进入供粉斗组件 1 内部， 同时从外部引入到流化气室 222 的小气压流化气 72也转换为高压清理气 73， 实施对供粉斗组件 1 内部及流化板 204的清 理。
人工检查状态： 如图 7所示， 清理完成后， 控制可控密封件 33使通道 43打开， 供粉 斗组件 1和内芯轴组件 2相对移动到内芯轴组件 2离开供粉斗组件 1内腔， 人工检查内芯 轴组件 2及供粉斗组件 1的状况。
以上是对本发明的结构原理的说明， 以下针对应用的典型实例做详细说明。
典型实施实例一：
如图 8、 图 9、 图 10、 图 11、 图 12所示， 一种闭路循环的自动清理供粉装置， 包括 供粉斗组件 1和内芯轴组件 2。 可控密封件采用气控密封圈， 气控密封圈数量为两个， 均 安装在供粉斗组件 1上， 由供粉斗组件 1固定， 内芯轴组件 2在供粉斗组件 1内腔中移动。
供粉斗组件 1由储粉斗 11、 吸料环 13、 压板 15及安装和支撑气控密封圈 33、 34的进 气环 32、 31组成， 储料斗 11内设内腔 111用于容置粉末 6， 内腔 111内壁是圆柱型， 供 粉斗组件 1底部设置开口 112与内腔 111连通， 开口 112用于内芯轴组件 2进入内腔 111， 吸料环 13上设有与内腔 111连通的吸粉口 131。 在吸粉口 131两侧各安装一个气控密封圈 33、 34, 进气环 31上设有进气口 35， 进气环 32上设有进气口 36， 进气口 35、 36为气控 密封圈进气或抽气时的压縮气体引入及排出。
内芯轴组件 2包括内芯轴主体 202、 底座 201、 流化板 204及卸料阀 23， 内芯轴主体 202外侧安装底座 201， 内芯轴主体 202中间设有卸料通道 223， 卸料通道 223—端连通内 腔 111， 另一端安装卸料阀 23， 卸料阀 23开启可以卸下储粉斗 11 内的粉末 6， 关闭就可 以密封卸料通道， 使粉末保持在储粉斗 11内。 在内芯轴主体 202上部设有流化气室 222， 流化气室上方安装有流化板 204， 底座 201设置高压清理气通道 211及流化气通道 224 ， 通过从流化气通道 224引入流化气到流化气室 222作用给流化板 204使储粉斗 11内的粉末 处于流动状态，在清理时可以从流化气通道 224引入高压清理气实现对流化板 204的清理， 高压清理气通道 211用于在清理时引入高压清理气对供粉斗组件 1及喷粉及、 或其它应用 设备 5进行清理， 内芯轴组件 2外壁与供粉斗组件 1内壁之间预留有 l〜4mm的间隙。 供粉斗组件 1在内芯轴组件 2内腔内移动， 由进气口 35或 36引入可控的压縮气体作 用给气控密封圈 34或 33， 使气控密封圈 34或 33收縮或膨胀开启或封闭供粉斗组件 1内 壁与内芯轴组件 2外壁之间的间隙， 在吸粉口 131两侧形成不同的通道提供给粉末或清理 气， 从而实现所需三种工作位置： 供粉位置、 清理位置及检查位置， 及五种组合工作状态: 请见如下描述：
供粉位置 如图 8所示： 内芯轴组件 2上的流化板 204上端面同下可控密封圈 33在吸 粉口 131的同侧且内芯轴组件 2未离开内腔 111。
清理位置： 如图 9所示： 内芯轴组件 2上的流化板 204上端面同可控密封圈 33分别 在吸粉口 131的两侧。
人工检查位置： 如图 12所示， 内芯轴组件 2上的流化板 204上端面同下可控密封圈 33在吸粉口 131的同侧且内芯轴组件 2离开内腔 111。
供粉状态如图 8所示， 内芯轴组件 2在供粉斗组件 1内腔内移动到供粉位置， 关闭卸 料阀 23， 由进气口 36引入可控压縮气体使气控密封圈 33充气膨胀抱紧内芯轴主体 202的 侧壁 221， 从而密封供粉斗组件 1与外部的通道。 此时， 供粉系统 （图中未示意） 开启， 由内芯轴组件 2的流化气通道 224引入小气压流化气 72到流化气室 222作用给流化板 204， 使供粉斗组件 1内腔的粉末 6处于流动状态， 开启喷粉系统 5， 供粉斗组件 1内腔的粉末 6 由吸粉口 131供给喷粉系统 5。
清理粉管， 粉泵及喷粉及、 或其它应用设备的状态： 如图 9所示， 适当控制由进气口 36引入的可控压縮气体的压力使可控密封圈 33同内芯轴组件 2与供粉斗组件 1之间能做 相对移动而粉末 6不会从内芯轴组件 2与供粉斗组件 1之间的间隙溢到外部， 移动内芯轴 组件 2至清理位置， 控制由进气口 36引入的压縮气体的压力使下可控密封圈 33抱紧底座 201的侧壁 214， 同时由进气口 35引入压縮气体使上气控密封圈充气膨胀抱紧内芯轴主体 202的侧壁 221， 隔断内腔 111与吸粉口 131之间的粉末通道， 由清理气通道 211引入高压 清理气 71， 高压清理气 71由吸粉口 131进入到粉管、 粉泵及粉末喷涂设备对其进行清理。
卸料状态： 如图 10所示， 内芯轴组件 2同供粉斗组件 1仍在清理位置， 喷粉系统 5及 供粉系统仍处于关闭状态，停止从清理气通道 211引入高压清理气，继续从流化气通道 224 引入小气压流化气 72使供粉斗组件 1 内的粉末 6处于流动状态， 打开卸料阀 23， 供粉斗 组件 1内的粉末 6从卸料通道 223卸下， 清空供粉斗组件 1内的粉末 6， 实现卸料状态。
清理供粉斗组件内部状态如图 11所示， 内芯轴组件 2同供粉斗组件 1仍在清理位置， 喷粉系统 5及供粉系统仍处于关闭状态，下气控密封圈 33继续充气膨胀抱紧底座 201中部 侧壁 214， 隔断吸粉口 131与外部的通道， 由进气口 35向外抽气使上气控密封圈 34收縮 打开内腔 111与吸粉口 131之间的粉末通道， 由清理气通道 211引入的高压清理气 71就会 由内芯轴主体 202的侧壁 221与供粉斗组件 1的内壁之间的间隙进入到供粉斗内部， 由流 化气通道 224引入的小气压流化气 72转换为高压清理气 73进入到流化气室 222后对流化 板进行清理， 这样就实现了对供粉斗组件 1内部的清理。
人工检查状态如图 12所示， 移动内芯轴组件 2到检查位置， 检查供粉斗组件 1和内芯 轴组件 2各部件的工作状况及清理状况等。 典型实施实例二： 如图 13、 图 14、 图 15、 图 16、 图 17所示， 一种闭路循环的自动清理供粉装置， 包 括供粉斗组件 1和内芯轴组件 2。 可控密封件采用气控密封圈， 气控密封圈数量为两个， 一件安装在供粉斗组件 1上另一件安装在内芯轴组件 2上， 供粉斗组件 1固定， 内芯轴组 件 2在供粉斗组件 1内腔中移动。
供粉斗组件 1由储粉斗 11、 吸料环 13、 压板 15、 移动板 16及安装和支撑气控密封圈 33的进气环 32组成， 储料斗 11内设内腔 111用于容置粉末 6， 内腔 111内壁是圆柱型， 供粉斗组件 1底部设置开口 112与内腔 111连通，开口 112用于内芯轴组件 2进入内腔 111， 供粉斗组件 1的壁面上设置有与内腔 111连通的吸粉口 131。 在吸粉口 131两侧各安装一 个气控密封圈 33、 34， 进气环 31上设有进气口 35， 进气环 32上设有进气口 36， 进气口 35、 36为气控密封圈进气或抽气时的压縮气体引入及排出口， 吸料环 13同移动板 16之间 设有高压清理气通道 211， 在清理时移动板 16向下移动打开高压清理气通道 211， 由高压 清理气通道 211引入的高压清理气 71对供粉斗组件 1及喷粉及、或其它应用设备 5进行清 理。
内芯轴组件 2包括内芯轴主体 202、 底座 201、 流化板 204及卸料阀 23及安装和支撑 气控密封圈 34的进气环 31组成，在底座 201与内芯轴主体 202之间安装进气环 31及可控 密封圈 34， 内芯轴主体 202中间设有卸料通道 223， 卸料通道 223—端连通内腔 111， 另 一端安装卸料阀 23， 卸料阀 23开启可以卸下储粉斗 11内的粉末 6， 关闭就可以密封卸料 通道， 使粉末保持在储粉斗 11内。 在内芯轴主体 202上部设有流化气室 222， 流化气室上 方安装有流化板 204， 内芯轴主体 202上设置有流化气通道 224 ， 通过从流化气通道 224 引入流化气到流化气室 222作用给流化板 204使储粉斗 11内的粉末处于流动状态，在清理 时可以从流化气通道 224引入高压清理气实现对流化板 204的清理， 内芯轴组件 2外壁与 供粉斗组件 1内壁之间预留有 l〜4mm的间隙。
供粉斗组件 1在内芯轴组件 2内腔内移动， 由进气口 35或 36引入可控的压縮气体作 用给气控密封圈 34或 33， 使气控密封圈 34或 33收縮或膨胀开启或封闭供粉斗组件 1内 壁与内芯轴组件 2外壁之间的间隙在吸粉口 131两侧形成不同的通道提供给粉末或清理气， 从而实现所需三种工作位置： 供粉位置、 清理位置及检查位置， 及五种工作状态。 同时在 供粉或清理时还可以对底座 201的外壁 214进行清理，也可以对下可控密封圈 33进行充气 膨胀， 使下可控密封圈抱紧底座 201的外壁 214使在供粉状态时供粉斗组件 1同内芯轴组 件 2之间的密封更加可靠。
供粉位置： 内芯轴组件 2上的流化板 204上端面同下可控密封圈 33在吸粉口 131的 同侧且内芯轴组件 2未离开内腔 111。
清理位置：内芯轴组件 2上的流化板 204上端面同和可控密封圈 33分别在吸粉口 131 的两侧。
检查位置： 内芯同组件 2上的流化板 204上端面同下可控密封圈 33在吸粉口 131的 同侧且内芯轴组件 2离开内腔 111。
供粉状态如图 13示， 内芯轴组件 2在供粉斗组件 1内腔内移动到供粉位置， 由进气口 35引入可控压縮气体使气控密封圈 34充气膨胀压紧吸料环 13的内壁， 从而密封供粉斗组 件 1与外部的通道。 此时， 供粉系统 （图中未示意） 开启， 由内芯轴组件 2的流化气通道 224引入小气压流化气 72到流化气室 222作用给流化板 204， 使供粉斗组件 1内腔 111内 的粉末 6处于流动状态， 开启喷粉系统 5， 供粉斗组件 1内腔 111内的粉末 6由吸粉口 131 供给喷粉系统 5。 此时也可以同时对底座 201的外壁 214进行清理： 由进气口 36对下可控 密封圈 33抽气， 使下可控密封圈 33收縮， 移动移动板 16打开高压清理气通道 211， 由高 压清理气通道 211引入高压清理气可对底座 201的外壁 214进行清理。 也可以由进气口 36 引入压縮气体使下可控密封圈膨胀抱紧底座 201的外壁 214密封外壁 214与移动板之间的 间隙， 使密封更加可靠。
清理粉管， 粉泵及喷粉及、 或其它应用设备的状态如图 14 所示， 适当控制由进气口 36引入的可控压縮气体的压力使可控密封圈 33同内芯轴组件 2与供粉斗组件 1之间能做 相对移动而粉末 6不会从内芯轴组件 2与供粉斗组件 1之间的间隙溢到外部， 由进气口 35 对上可控密封圈 34抽气， 使上可控密封圈 34收縮， 移动内芯轴组件 2至清理位置， 控制 由进气口 36引入的压縮气体的压力使下可控密封圈 33抱紧底座 201的侧壁 214， 同时由 进气口 35引入可控压縮气体使上气控密封圈充气膨胀压紧供粉斗组件 1的内壁，隔断内腔 111与吸粉口 131之间的粉末通道， 移动移动板 16打开高压清理气通道 211， 由高压清理 气通道 211引入高压清理气 71， 高压清理气 71由吸粉口 131进入到粉管、 粉泵及喷粉及、 或其它应用设备对其进行清理。
卸料状态如图 15所示， 内芯轴组件 2同供粉斗组件 1仍在清理位置， 喷粉系统 5及供 粉系统仍处于关闭状态， 停止从清理气通道 211 引入高压清理气， 继续从流化气通道 224 引入小气压流化气 72使供粉斗组件 1 内的粉末 6处于流动状态， 打开卸料阀 23， 供粉斗 组件 1内的粉末 6从卸料通道 223卸下， 清空供粉斗组件 1内的粉末 6， 实现卸料状态。
清理供粉斗组件内部状态如图 16所示， 内芯轴组件 2同供粉斗组件 1仍在清理位置， 喷粉系统 5及供粉系统仍处于关闭状态，下气控密封圈 33继续充气膨胀抱紧底座 201中部 侧壁 214， 隔断吸粉口 131与外部的通道， 由进气口 35向外抽气使上气控密封圈 34收縮 打开内腔 111与吸粉口 131之间的粉末通道， 移动移动板 16打开高压清理气通道 211， 由 高压清理气通道 211引入高压清理气 71， 就会由底座 201的侧壁及内芯轴主体 202的侧壁 221与供粉斗组件 1的内壁之间的间隙进入到供粉斗组件 1 内部， 由流化气通道 224引入 的小气压流化气 72转换为高压清理气 73进入到流化气室 222后对流化板进行清理， 这样 就实现了对供粉斗组件 1内部的清理。
在清理供粉斗组件 1 内部的状态下， 控制可控密封圈 34及 33还可以实现清理底 201 与移动板 16之间的间隙。
人工检查状态如图 17所示， 移动内芯轴组件 2到检查位置， 检查供粉斗组件 1和内芯 轴组件 2各部件的工作状况及清理状况等。
以上所述仅为本发明的典型的实施实例并非用来限定本发明实施的范围， 可控密封件 是保证内芯轴组件在粉末中移动变得可能的一种可行方案， 但如果用其它类型的密封件也 属于本专利的一个变形， 凡依本发明专利范围 （无论是典型实例或工作原理） 所做的同等 变化与修饰， 皆落入本发明专利涵盖的范围。

Claims

权利要求
1、 一种闭路循环的自动清理供粉装置， 包括：
一供粉斗组件， 供粉斗组件中空的内腔形成储存粉末的容器；
一芯轴组件， 内芯轴的顶部嵌套在内腔里面， 内芯轴组件的顶部的外侧壁与供粉斗组 件的内腔里面的内侧壁之间留有间隙；
一吸粉口， 设置在所述的供粉斗组件上， 向外部供给粉末；
至少 2件可控密封件设置在供粉斗组件或内芯轴组件上， 且相隔一段距离， 可控密封 件用于封闭或者打开间隙， 通过对可控密封件的不同控制和供粉斗组件与内芯轴组件相对 移动得到设定的几个不同的工作状态， 所述可控密封件在吸粉口一侧或两侧对供粉斗组件 和内芯轴组件进行密封。
2、 根据权利要求 1所述的一种闭路循环的自动清理供粉装置， 其特征在于： 供粉斗组 件底部设置开口与内腔连通， 内芯轴组件的顶部可从开口伸入内腔内部。
3、 根据权利要求 1所述的一种闭路循环的自动清理供粉装置， 其特征在于： 所述的吸 粉口与粉管、 喷粉及、 或其它应用设备相连。
4、 根据权利要求 1或 2或 3所述的一种闭路循环的自动清理供粉装置， 其特征在于： 所述至少 2件可控密封件可布置在吸粉口两侧， 一件可控密封件是封闭或者开启供粉斗组 件内的粉末到吸粉口的通道，另一件可控密封件是封闭或者开启供粉斗组件和外部的通道。
5、 根据权利要求 4所述的一种闭路循环的自动清理供粉装置， 其特征在于： 所述的供 粉斗组件和内芯轴组件配合的外表面为柱形。
6、 根据权利要求 1或 2或 5所述的一种闭路循环的自动清理供粉装置， 其特征在于： 所述的内芯轴组件的顶部的外侧壁与供粉斗组件的内腔里面的内侧壁之间的间隙范围是 0. 1mm - 20mm。
7、 根据权利要求 1或 2或 3所述的一种闭路循环的自动清理供粉装置， 其特征在于： 可控密封件的膨胀或收縮通过压縮气体驱动， 或者液压驱动或机械结构驱动， 实现内芯轴 组件的顶部的外侧壁和供粉斗组件内表面之间的间隙在不同位置的封闭和开启。
8、 根据权利要求 1或 2或 3所述的一种闭路循环的自动清理供粉装置， 其特征在于： 所述内芯轴组件上设有流化板、 卸料通道、 卸料阀， 所述卸料阀为粉末卸料阀， 所述卸料 阀为翻板式卸料阀或者蝶阀或者软管阀。
9、 根据权利要求 1或 2所述的一种闭路循环的自动清理供粉装置， 其特征在于： 通过 对可控密封件的不同控制并使供粉斗组件与内芯轴组件相对移动得到至少 4种不同的工作 状态：
A) 供粉状态 ： 一件可控密封件位于吸粉口上方， 打开供粉斗组件内的粉末到吸粉口 的通道， 另一件可控密封件位于吸粉口下方， 封闭供粉斗组件和外部的通道；
B)清理粉管， 粉泵及喷粉及、 或其它应用设备状态： 一件可控密封件位于吸粉口上方， 封闭供粉斗组件内的粉末到吸粉口的通道， 另一件可控密封件位于吸粉口下方， 封闭供粉 斗组件和外部的通道； 通入压縮空气对粉管， 粉泵及喷粉及、 或其它应用设备进行清理。
C)清理供粉组件内部状态： 一件可控密封件位于吸粉口上方， 打开供粉斗组件内的粉 末到吸粉口的通道； 另一件可控密封件位于吸粉口下方， 封闭供粉斗组件和外部的通道， 关闭吸粉口与外部通道； 通入压縮空气对供粉斗组件进行清理；
D)人工检查状态： 可控密封件处于放松状态， 使供粉斗组件和内芯轴组件相当移动至 完全分离位置， 可供人员进行检查操作。
10、根据权利要求 1或 2或 3所述的一种闭路循环的自动清理供粉装置， 其特征在于: 至少 2件可控密封件和吸粉口都设置在供粉斗组件上， 可控密封件之间设置吸粉口。
11、根据权利要求 1或 2或 3所述的一种闭路循环的自动清理供粉装置， 其特征在于: 至少 2件可控密封件和吸粉口都设置在内芯轴组件上， 可控密封件之间设置吸粉口。
12、根据权利要求 1或 2或 3所述的一种闭路循环的自动清理供粉装置， 其特征在于: 1件可控密封件设置在供粉斗组件上， 另 1件可控密封件设置在内芯轴组件上， 可控密封 件之间设置吸粉口。
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