CN113443441A - Continuous powder feeder and method thereof - Google Patents
Continuous powder feeder and method thereof Download PDFInfo
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- CN113443441A CN113443441A CN202110857480.3A CN202110857480A CN113443441A CN 113443441 A CN113443441 A CN 113443441A CN 202110857480 A CN202110857480 A CN 202110857480A CN 113443441 A CN113443441 A CN 113443441A
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- negative pressure
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- 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
- B65G53/24—Gas suction systems
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- 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
- B65G53/60—Devices for separating the materials from propellant gas
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- 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
- B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
Abstract
The invention relates to the field of powder feeding, in particular to a continuous powder feeder. The invention also relates to a using method of the powder continuous feeder, which comprises the steps that a material tank is provided with a blanking port coaxial with the material tank at the bottom end; the feeding assembly is arranged on the charging bucket, and a discharge port of the feeding assembly faces the inner wall of the charging bucket along the radial direction; the material suction pieces are uniformly arranged on the outer side of the discharge port of the feeding assembly along the circumferential direction, and air holes with the aperture smaller than that of the powder are uniformly arranged on the material suction pieces; the pipeline assembly is arranged on the material tank, the working end of the pipeline assembly is positioned in the material suction part and communicated with the air hole, the pipeline assembly is positioned outside the material tank and provided with a first air port and a second air port, the first air port is communicated with the positive pressure pulse air source, and the second air port is communicated with the negative pressure air source.
Description
Technical Field
The invention relates to the field of powder feeding, in particular to a continuous powder feeder. The invention also relates to a using method of the powder continuous feeder.
Background
The powder is including metal powder and non-metal powder, in general production process, the powder can be the dust state and flow in the pipeline, direct processing or packing efficiency and security are lower, need handle the dust, so that retrieve the powder in the dust, separate powder and air promptly, make the powder gather together, so that follow-up processing or packing, and present powder loading ware, unable effectual separation air and powder, and then unable stable and continuous supplies powder material to packagine machine or feed bin.
Chinese patent CN201910436349.2 discloses a screening system and a screening method for active metal powder. The screening system comprises a first vibrating screen device, an airflow grading device, a second vibrating screen device and a protective gas circulating system, wherein the airflow grading device comprises a screw feeder and a grading bin; the discharge port of the first vibrating screen device is connected with the screw feeder, the screw feeder is connected with the grading bin through a conveying pipe, and the discharge port of the grading bin is connected with the second vibrating screen device.
The sieving system cannot stably and continuously separate the powder from the air.
Disclosure of Invention
In order to solve the technical problem, a powder continuous feeder and a method thereof are provided.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a powder continuous feeder comprises a material tank, wherein the bottom end of the material tank is provided with a blanking port coaxial with the material tank; the feeding assembly is arranged on the charging bucket, a discharge hole of the feeding assembly is positioned at the top in the charging bucket, and the discharge hole of the feeding assembly faces to the inner wall of the charging bucket along the radial direction; the material suction pieces are uniformly arranged on the outer side of the discharge port of the feeding assembly along the circumferential direction, and air holes with the aperture smaller than that of the powder are uniformly arranged on the material suction pieces; pipeline assembly, pipeline assembly has three groups at least, just pipeline assembly sets up on the material jar, pipeline assembly's work end is located inhale in the material piece and with the gas hole intercommunication, pipeline assembly is located the outside of material jar is provided with first gas port and second gas port, first gas port and malleation pulse air supply intercommunication, second gas port and negative pressure air supply intercommunication.
Preferably, inhale the material piece and be the nanometer section of thick bamboo, evenly arranged the hole on the nanometer section of thick bamboo, the hole is less than the diameter of powder, just the bottom of nanometer section of thick bamboo is sealed, the nanometer section of thick bamboo evenly arranges along circumference the discharge gate outside of feeding subassembly, just the nanometer section of thick bamboo with the material jar is coaxial, the coaxial grafting of working end of pipeline subassembly is in the nanometer section of thick bamboo.
Preferably, the pipeline assembly comprises an air cylinder, the air cylinder is uniformly arranged at the outer side of the discharge port of the feeding assembly along the circumferential direction, the air cylinder and the charging bucket are coaxial, the top end of the air cylinder extends along the axial direction and penetrates through the top end of the charging bucket, air guide holes are uniformly arranged on the part, located in the charging bucket, of the air cylinder, and part of the nano cylinder is coaxially arranged on the part, located in the charging bucket, of the air cylinder; the airflow guide pipe is arranged at the top of the charging bucket and is communicated with the top end of the air cylinder, and the airflow guide pipe comprises two connecting ports; the first electromagnetic valve and the second electromagnetic valve are respectively arranged on the two connectors of the airflow guide pipe, and the other ends of the first electromagnetic valve and the airflow guide pipe are respectively communicated with a positive pressure pulse air source and a negative pressure air source.
Preferably, the inner diameter of the gas introduction hole is gradually reduced from the bottom end to the top end of the outer circumferential surface of the cylinder.
Preferably, the pipeline assembly further comprises an air pressure sensor, the air pressure sensor is inserted in the air cylinder along the radial direction and located outside the charging bucket, and the air pressure sensor is electrically connected with the controller.
Preferably, the pipeline assembly further comprises an air flow regulating valve, and the top end of the air cylinder is communicated with the air flow guide pipe through the air flow regulating valve.
Preferably, still including first bearing, sealing washer and, it has the arc wall to go back evenly to arrange on the periphery of a nanometer section of thick bamboo, just the bottom of arc wall is run through a nanometer section of thick bamboo, a nanometer section of thick bamboo passes through the coaxial rotation of first bearing sets up the periphery of inflator, just the sealing washer is coaxial to be overlapped on the inflator, the coaxial butt of sealing washer is in the top of first bearing.
Preferably, the feeding assembly comprises a fixed cylinder, the fixed cylinder is coaxially and fixedly arranged at the top end of the charging bucket, and the fixed cylinder is communicated with the inside of the charging bucket; the rotary cylinder is coaxially and rotatably arranged at the bottom end of the inner part of the fixed cylinder through the second bearing, the rotary cylinder is positioned in the material tank, and the bottom end of the rotary cylinder is uniformly provided with bending openings extending along the radial direction of the rotary cylinder; the gear ring is coaxially and fixedly arranged on the rotary cylinder; the rotating shaft and the fixed cylinder are coaxially and rotatably arranged at the top end of the charging bucket; the gear is coaxially and fixedly arranged at the bottom end of the rotating shaft and is meshed with the gear ring; the servo motor is fixedly arranged at the top of the charging bucket, and an output shaft of the servo motor is coaxially and fixedly connected with the top end of the rotating shaft.
Preferably, the feeding assembly further comprises a sealing cover, the sealing cover is coaxially arranged at the bottom of the outer periphery of the fixed cylinder, and the gear ring and the gear are both located inside the sealing cover.
The use method of the powder continuous feeder comprises the following steps,
firstly, a servo motor is started in advance, so that a bending opening rotates along the circumferential direction relative to a fixed cylinder;
starting a first negative pressure air source communicated with a second air port of the first group of pipeline assemblies, namely enabling the first negative pressure air source to enable a material suction piece communicated with the working ends of the first group of pipeline assemblies to generate negative pressure through the first group of pipeline assemblies;
step three, after the first group of negative pressure air sources work for a period of time, opening the second group of negative pressure air sources, after the first group of negative pressure air sources continue to work for a period of time, closing the first group of negative pressure air sources, and starting the first group of positive pressure pulse air sources;
step four, after the second group of negative pressure air sources work for a period of time, opening a third group of negative pressure air sources, after the second group of negative pressure air sources continue to work for a period of time, closing the second group of negative pressure air sources, and starting the second group of positive pressure pulse air sources;
step five, after the third group of negative pressure air sources work for a period of time, opening the first group of negative pressure air sources, closing the first group of positive pressure pulse air sources, after the third group of negative pressure air sources continue to work for a period of time, closing the third group of negative pressure air sources, and starting the third group of positive pressure pulse air sources;
and step six, repeating the step two to the step five.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the material suction part and at least three groups of pipeline assemblies, the powder and air can be separated in the charging bucket in a circulating and reciprocating manner, the structure is simple, and the continuous operation can be realized;
2. according to the invention, the nano-rod material sucking part can enable powder to be uniformly gathered on the peripheral surface of the outer circle of the material sucking part, so that the powder and air can be conveniently separated;
3. according to the invention, through the air cylinder, the airflow guide pipe, the first electromagnetic valve and the second electromagnetic valve, a positive pressure pulse air source or a negative pressure air source can generate positive pressure or negative pressure in the material suction piece so as to adsorb powder and separate the powder from air;
4. according to the invention, the inner diameter of the air guide hole is gradually reduced from the bottom end to the top end of the outer circumferential surface of the air cylinder, so that the top and bottom pressures of the inner circumferential surface of the air cylinder are the same, and the dust is conveniently and uniformly adsorbed by the material suction piece;
5. the internal pipe pressure of the airflow guide pipe can be monitored in real time through the air pressure sensor, and the pipe pressure information of the airflow guide pipe is sent to the controller, so that the air cylinder can be conveniently overhauled by a worker;
6. the invention can adjust the air flow between the air flow guide pipe and the air cylinder through the air flow adjusting valve, thereby preventing the air pressure in the air cylinder from being too high or too low;
7. according to the invention, the arc-shaped groove arranged on the outer peripheral surface of the material suction piece, the first bearing and the sealing ring can enable the material suction piece to coaxially rotate on the air cylinder when the air cylinder generates negative pressure so as to uniformly adsorb dust;
8. according to the dust absorption device, the rotary cylinder which can coaxially rotate relative to the fixed cylinder can enable the bent opening to uniformly guide dust to the material absorption piece, so that the material absorption piece can absorb the dust conveniently;
9. according to the invention, the sealing cover is coaxially covered at the bottom end of the fixed cylinder, and the gear ring and the gear are both positioned in the sealing cover, so that dust can be prevented from attaching to the gear ring or the gear, and the normal rotation of the gear ring or the gear is prevented from being influenced.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a cross-sectional view at section A-A of FIG. 3;
FIG. 5 is a perspective sectional view at section A-A of FIG. 3;
FIG. 6 is a partial enlarged view of FIG. 4 at B;
FIG. 7 is an enlarged view of a portion of FIG. 4 at C;
FIG. 8 is an enlarged view of a portion of FIG. 1 at D;
FIG. 9 is an enlarged view of a portion of FIG. 4 at E;
FIG. 10 is a partial perspective view of the suction member and tube assembly of the present invention;
FIG. 11 is a partial perspective view of the conduit assembly of the present invention;
FIG. 12 is a top view of the feed assembly and tube assembly of the present invention;
FIG. 13 is a perspective view of the feed assembly and tube assembly of the present invention;
FIG. 14 is a perspective view of the feed assembly of the present invention;
fig. 15 is a perspective view of a rotary cylinder of the present invention.
The reference numbers in the figures are:
1-material tank; 1 a-a blanking port;
2-a feed assembly; 2 a-a fixed cylinder; 2 b-a rotating drum; 2b 1-bend opening; 2 c-a second bearing; 2 d-gear ring; 2 e-a spindle; 2 f-gear; 2 g-servo motor; 2 h-sealing cover;
3-absorbing the material;
4-a pipe assembly; 4 a-a gas cylinder; 4a 1-gas vent; 4 b-an airflow guide pipe; 4 c-a first solenoid valve; 4 d-a second solenoid valve; 4 e-a barometric pressure sensor; 4 f-gas flow regulating valve;
5-a first bearing;
6-sealing ring.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
In order to solve the technical problem that the existing powder feeder cannot continuously and stably separate powder from air, as shown in fig. 5, the following technical scheme is provided:
a continuous powder feeder, which comprises a powder feeding device,
the device comprises a charging bucket 1, wherein a blanking port 1a coaxial with the charging bucket 1 is arranged at the bottom end of the charging bucket 1;
the feeding assembly 2 is arranged on the charging bucket 1, a discharging port of the feeding assembly 2 is positioned at the top in the charging bucket 1, and a discharging port of the feeding assembly 2 faces the inner wall of the charging bucket 1 along the radial direction;
the material suction pieces 3 are uniformly arranged on the outer side of the discharge port of the feeding component 2 along the circumferential direction, and air holes with the aperture smaller than that of the powder are uniformly arranged on the material suction pieces 3;
Specifically, a valve is further arranged at the blanking port 1a and used for selectively communicating the blanking port 1a with the outside;
the pipeline assembly 4 comprises at least three groups, namely at least three groups of positive pressure pulse air sources and three groups of negative pressure air sources;
before working, the three groups of positive pressure pulse air sources and the three groups of negative pressure air sources are in a closed state;
when the dust collecting device works, a first group of negative pressure air sources communicated with a second air port of the first group of pipeline assemblies 4 is started, namely the first group of negative pressure air sources enable the material sucking piece 3 communicated with the working end of the first group of pipeline assemblies 4 to generate negative pressure through the first group of pipeline assemblies 4, namely the negative pressure is generated inside the material obtaining tank 1, the outside conveys dust into the material tank 1 through the feeding assembly 2, and the dust is adsorbed by the material sucking piece 3 communicated with the working end of the first group of pipeline assemblies 4 along the radial direction, and the dust can be prevented from overflowing outwards through the air holes and the pipeline assemblies 4 because the air holes are smaller than the diameter of the powder;
after the first group of negative pressure air sources work for a period of time, the second group of negative pressure air sources are opened, namely the two groups of pipeline assemblies 4 work simultaneously, after the first group of negative pressure air sources continue to work for a period of time, the first group of negative pressure air sources are closed, the first group of positive pressure pulse air sources are started, namely, the powder attached to the material suction piece 3 communicated with the working end of the first group of pipeline assemblies 4 falls to the inner bottom end of the charging bucket 1;
after the second group of negative pressure air sources work for a period of time, the third group of negative pressure air sources are opened, namely, two groups of pipeline assemblies 4 still work simultaneously, after the second group of negative pressure air sources continue to work for a period of time, the second group of negative pressure air sources are closed, the second group of positive pressure pulse air sources are started, namely, the powder attached to the material suction piece 3 communicated with the working end of the second group of pipeline assemblies 4 falls to the inner bottom end of the charging bucket 1;
after the third group of negative pressure air sources work for a period of time, the first group of negative pressure air sources are opened, and the first group of positive pressure pulse air sources are closed at the same time, so that the two groups of pipeline assemblies 4 still work at the same time, after the third group of negative pressure air sources continue to work for a period of time, the third group of negative pressure air sources are closed, the third group of positive pressure pulse air sources are started, and powder attached to the material suction part 3 communicated with the working end of the third group of pipeline assemblies 4 falls to the inner bottom end of the material tank 1;
therefore, the three groups of pipeline assemblies 4 and the material sucking part 3 work in a matched and circulating mode so as to separate powder and air repeatedly and stably.
Further:
in order to solve the technical problem of how to make the powder adsorbed on the outer surface of the suction piece 3 by the negative pressure generated inside the suction piece 3 by the working end of the pipe assembly 4, as shown in fig. 13, the following technical scheme is provided:
inhale material piece 3 and be a nanometer section of thick bamboo, evenly arranged the hole on the nanometer section of thick bamboo, the hole is less than the diameter of powder, just the bottom of nanometer section of thick bamboo is sealed, the nanometer section of thick bamboo is evenly arranged along circumference the discharge gate outside of feed subassembly 2, just the nanometer section of thick bamboo with material jar 1 is coaxial, the coaxial grafting of working end of pipeline subassembly 4 is in the nanometer section of thick bamboo.
Specifically, when the working end of the pipe assembly 4 generates negative pressure airflow, because the material sucking member 3 of the nanorod is coaxially arranged at the working end of the pipe assembly 4, and the nanorod is uniformly provided with the holes, i.e. dust diffused along the radial direction from the discharge hole of the feeding assembly 2 can be adsorbed on the outer circumferential surface of the nanorod, so as to separate powder and air, and when the working end of the pipe assembly 4 generates positive pressure pulse airflow, the pulse airflow can flush the powder out of the holes, so that the powder is gathered and falls on the inner bottom end of the charging bucket 1.
Further:
in order to solve the technical problem of how the duct assembly 4 generates negative pressure in the nano-tube, as shown in fig. 6 and 7, the following technical solutions are provided:
the pipe assembly 4 is comprised of a pipe,
the gas cylinder 4a is uniformly arranged at the outer side of the discharge hole of the feeding component 2 along the circumferential direction, the gas cylinder 4a and the charging bucket 1 are coaxial, the top end of the gas cylinder 4a extends along the axial direction and penetrates through the top end of the charging bucket 1, the part of the gas cylinder 4a, which is positioned in the charging bucket 1, is uniformly provided with gas guide holes 4a1, and the part of the nano cylinder is coaxially arranged at the part of the gas cylinder 4a, which is positioned in the charging bucket 1;
the air flow guide pipe 4b is arranged at the top of the charging bucket 1 and is communicated with the top end of the air cylinder 4a, and the air flow guide pipe 4b comprises two connecting ports;
Specifically, two connectors of the airflow guiding pipe 4b are respectively communicated with the positive pressure pulse air source and the negative pressure air source through the first electromagnetic valve 4c and the second electromagnetic valve 4d, namely, the airflow guiding pipe 4b can be controlled to be selectively communicated with the positive pressure pulse air source or the negative pressure air source through the first electromagnetic valve 4c and the second electromagnetic valve 4d, so that positive pressure or negative pressure can be generated in the airflow guiding pipe 4b, namely, the airflow guiding pipe can guide the suction piece 3 to generate positive pressure or negative pressure through the air guide hole 4a1, so that powder is adsorbed on the outer circumferential surface of the suction piece 3, or the powder is discharged outwards from the pore space of the nanorod.
Further:
in order to solve the technical problem of uniform pressure applied to the inner periphery of the nano cylinder by the outer periphery of the gas cylinder 4a, as shown in fig. 11, the following technical scheme is provided:
the inner diameter of the gas introduction hole 4a1 is gradually reduced from the bottom end to the top end of the outer circumferential surface of the cylinder 4 a.
Specifically, because the top end of the air cylinder 4a is a certain distance away from the bottom end inside the air cylinder, even if the pressure of the inner circumferential surface of the air cylinder 4a is different under the action of the air flow, i.e., the top pressure of the inner circumferential surface is higher, and the bottom pressure is lower, the local adsorption capacity of the periphery of the material adsorbing member 3 is different, and the pressure of the top and the bottom of the inner circumferential surface of the air cylinder 4a can be the same by gradually reducing the inner diameter of the air guide hole 4a1 from the bottom end to the top end of the outer circumferential surface of the air cylinder 4a, so that the material adsorbing member 3 can uniformly adsorb dust.
Further:
powder is easy to block in the air vent 4a1, and in order to avoid the technical problem that the pressure in the air cylinder 4a is unstable when a positive pressure pulse air source or a negative pressure air source works, as shown in fig. 7, the following technical scheme is provided:
the pipeline assembly 4 further comprises an air pressure sensor 4e, the air pressure sensor 4e is inserted in the air cylinder 4a in the radial direction and located outside the charging bucket 1, and the air pressure sensor 4e is electrically connected with the controller.
Specifically, the internal pipe pressure of the airflow guide pipe 4b can be monitored in real time through the air pressure sensor 4e, and the pipe pressure information of the airflow guide pipe 4b is sent to the controller, so that the air cylinder 4a can be conveniently overhauled by a worker.
Further:
in order to solve the technical problem of how to adjust the internal air pressure of the air cylinder 4a when the internal air pressure is unstable, as shown in fig. 7, the following technical solutions are provided:
the pipeline assembly 4 further comprises an air flow regulating valve 4f, and the top end of the air cylinder 4a is communicated with the air flow guide pipe 4b through the air flow regulating valve 4 f.
Specifically, the air flow rate between the air flow guide tube 4b and the air cylinder 4a can be adjusted by the air flow adjusting valve 4f, thereby preventing the air pressure in the air cylinder 4a from being too high or too low.
Further:
in order to solve the technical problem that the material suction member 3 can uniformly adsorb dust, as shown in fig. 6 and 10, the following technical solutions are provided:
still including first bearing 5, sealing washer 6 and 07, the arc wall has still evenly been arranged on the periphery of a nanometer section of thick bamboo, just the bottom of arc wall is run through a nanometer section of thick bamboo, a nanometer section of thick bamboo passes through the coaxial rotation of first bearing 5 sets up the periphery of inflator 4a, just sealing washer 6 coaxial cover is in on the inflator 4a, 6 coaxial butt of sealing washer is in the top of first bearing 5.
Specifically, the material sucking part 3 is coaxially and rotatably arranged on the periphery of the air cylinder 4a through the first bearing 5, and arc-shaped grooves are uniformly distributed on the outer circumferential surface of the material sucking part 3 along the circumferential direction, namely when negative pressure is generated in the air cylinder 4a, the arc-shaped grooves have larger attraction force relative to the outer circumferential surface of the material sucking part 3, so that the material sucking part 3 can coaxially rotate on the outer circumferential surface of the air cylinder 4a, and further the material sucking part 3 can coaxially rotate, so that diffused dust can be adsorbed along the circumferential direction, and the bottom end of the arc-shaped grooves penetrates through the nano cylinder, so that the powder is not easily gathered at the bottom end of the arc-shaped grooves, and the powder and the air can be separated.
Further:
in order to solve the technical problem that the discharge port of the feeding assembly 2 can uniformly discharge dust to the suction member 3 along the radial direction, as shown in fig. 9, 14 and 15, the following technical solutions are provided:
the feeding assembly 2 is provided with a feeding device,
the fixed cylinder 2a is coaxially and fixedly arranged at the top end of the charging bucket 1, and the fixed cylinder 2a is communicated with the inside of the charging bucket 1;
the rotary cylinder 2b is coaxially and rotatably arranged at the bottom end of the fixed cylinder 2a through the second bearing 2c, the rotary cylinder 2b is positioned in the charging bucket 1, and the bottom ends of the rotary cylinder 2b are uniformly provided with bending ports 2b1 extending along the radial direction of the rotary cylinder 2 b;
the gear ring 2d is coaxially and fixedly arranged on the rotary cylinder 2 b;
the rotating shaft 2e and the fixed cylinder 2a are coaxially and rotatably arranged at the top end of the charging bucket 1;
the gear 2f is coaxially and fixedly arranged at the bottom end of the rotating shaft 2e, and the gear 2f is meshed with the gear ring 2 d;
Specifically, before the work, start servo motor 2g in advance, even its output shaft drives pivot 2e coaxial rotation, because of gear 2f and ring gear 2d intermeshing, even make rotatory section of thick bamboo 2b can be at the coaxial rotation of fixed section of thick bamboo 2 a's bottom through second bearing 2c, again because of the radial extension of bending mouth 2b1 along rotatory section of thick bamboo 2b, when making promptly let in the dust from the top of fixed section of thick bamboo 2a, the even guide of dust can be followed to inhaling material piece 3 to the rotatory bending mouth 2b1 of circumference of fixed section of thick bamboo 2a, so that inhale material piece 3 and adsorb the dust.
Further:
in order to solve the technical problem that the powder is easy to block the gear ring 2d and the gear 2f, as shown in fig. 9, the following technical scheme is provided:
Specifically, establish the bottom at fixed section of thick bamboo 2a through the coaxial cover with sealed cowling 2h, and make ring gear 2d and gear 2f all be located sealed cowling 2h, can prevent promptly that the dust from attaching to ring gear 2d or gear 2f on, avoid influencing its normal rotation.
10. The use method of the powder continuous feeder is characterized by comprising the following steps,
step one, a servo motor 2g is started in advance, so that the bending opening 2b1 rotates along the circumferential direction relative to the fixed cylinder 2 a;
step two, starting a first negative pressure air source communicated with a second air port of the first group of pipeline assemblies 4, namely enabling the first negative pressure air source to enable the material suction piece 3 communicated with the working end of the first group of pipeline assemblies 4 to generate negative pressure through the first group of pipeline assemblies 4;
step three, after the first group of negative pressure air sources work for a period of time, opening the second group of negative pressure air sources, after the first group of negative pressure air sources continue to work for a period of time, closing the first group of negative pressure air sources, and starting the first group of positive pressure pulse air sources;
step four, after the second group of negative pressure air sources work for a period of time, opening a third group of negative pressure air sources, after the second group of negative pressure air sources continue to work for a period of time, closing the second group of negative pressure air sources, and starting the second group of positive pressure pulse air sources;
step five, after the third group of negative pressure air sources work for a period of time, opening the first group of negative pressure air sources, closing the first group of positive pressure pulse air sources, after the third group of negative pressure air sources continue to work for a period of time, closing the third group of negative pressure air sources, and starting the third group of positive pressure pulse air sources;
and step six, repeating the step two to the step five.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A powder continuous feeder is characterized by comprising a feeding device,
the device comprises a material tank (1), wherein the bottom end of the material tank (1) is provided with a blanking port (1a) coaxial with the material tank;
the feeding assembly (2) is arranged on the charging bucket (1), a discharge hole of the feeding assembly (2) is formed in the top of the charging bucket (1), and the discharge hole of the feeding assembly (2) faces to the inner wall of the charging bucket (1) along the radial direction;
the material suction pieces (3) are uniformly arranged on the outer side of the discharge port of the feeding component (2) along the circumferential direction, and air holes with the pore diameter smaller than that of the powder are uniformly arranged on the material suction pieces (3);
pipeline subassembly (4), pipeline subassembly (4) have three groups at least, just pipeline subassembly (4) set up on material jar (1), the work end of pipeline subassembly (4) is located inhale in material piece (3) and with the gas pocket intercommunication, pipeline subassembly (4) are located the outside of material jar (1) is provided with first gas port and second gas port, first gas port and malleation pulse air supply intercommunication, second gas port and negative pressure air supply intercommunication.
2. The continuous powder feeder according to claim 1, wherein the material sucking member (3) is a nano-tube, pores are uniformly arranged on the nano-tube, the pores are smaller than the diameter of the powder, the bottom end of the nano-tube is closed, the nano-tube is uniformly arranged outside the discharge port of the feeding assembly (2) along the circumferential direction, the nano-tube and the charging bucket (1) are coaxial, and the working end of the pipeline assembly (4) is coaxially inserted into the nano-tube.
3. A powder continuous feeder according to claim 2, characterised in that the pipe assembly (4) comprises,
the gas cylinder (4a), the gas cylinder (4a) is uniformly arranged at the outer side of the discharge hole of the feeding component (2) along the circumferential direction, the gas cylinder (4a) and the charging bucket (1) are coaxial, the top end of the gas cylinder (4a) extends along the axial direction and penetrates through the top end of the charging bucket (1), the part of the gas cylinder (4a) in the charging bucket (1) is uniformly provided with a gas guide hole (4a1), and the part of the nano cylinder is coaxially arranged at the part of the gas cylinder (4a) in the charging bucket (1);
the air flow guide pipe (4b) is arranged at the top of the charging bucket (1) and is communicated with the top end of the air cylinder (4a), and the air flow guide pipe (4b) comprises two connecting ports;
first solenoid valve (4c) and second solenoid valve (4d), first solenoid valve (4c) and second solenoid valve (4d) set up respectively on two connectors of air current skirt (4b), just the other end of first solenoid valve (4c) and air current skirt (4b) communicates with positive pressure pulse air supply and negative pressure air supply respectively.
4. The continuous powder feeder as claimed in claim 3, wherein the inner diameter of said air hole (4a1) is gradually reduced from the bottom end to the top end of the outer circumferential surface of said cylinder (4 a).
5. A powder continuous feeder according to claim 3, wherein the pipe assembly (4) further comprises an air pressure sensor (4e), the air pressure sensor (4e) is radially inserted into the air cylinder (4a) outside the charging bucket (1), and the air pressure sensor (4e) is electrically connected with the controller.
6. A powder continuous feeder according to claim 5, characterised in that the tube assembly (4) further comprises an air flow regulating valve (4f), and the top end of the air cylinder (4a) is communicated with the air flow guide tube (4b) through the air flow regulating valve (4 f).
7. The continuous powder feeder according to claim 3, further comprising a first bearing (5), a sealing ring (6) and a sealing ring (07), wherein an arc-shaped groove is uniformly arranged on the circumferential surface of the nano-tube, the bottom end of the arc-shaped groove penetrates through the nano-tube, the nano-tube is coaxially and rotatably arranged on the periphery of the gas cylinder (4a) through the first bearing (5), the sealing ring (6) is coaxially sleeved on the gas cylinder (4a), and the sealing ring (6) is coaxially abutted against the top end of the first bearing (5).
8. A continuous powder feeder according to claim 1, characterised in that the feed member (2) comprises,
the fixed cylinder (2a) is coaxially and fixedly arranged at the top end of the charging bucket (1), and the fixed cylinder (2a) is communicated with the inside of the charging bucket (1);
the rotary drum (2b) is coaxially and rotatably arranged at the bottom end of the inner part of the fixed drum (2a) through the second bearing (2c), the rotary drum (2b) is positioned in the charging bucket (1), and the bottom end of the rotary drum (2b) is uniformly provided with bending ports (2b1) extending along the radial direction of the rotary drum;
the gear ring (2d) is coaxially and fixedly arranged on the rotary cylinder (2 b);
the rotating shaft (2e) and the fixed cylinder (2a) are coaxially and rotatably arranged at the top end of the charging bucket (1);
the gear (2f) is coaxially and fixedly arranged at the bottom end of the rotating shaft (2e), and the gear (2f) is meshed with the gear ring (2 d);
servo motor (2g), servo motor (2g) are fixed to be set up the top of material jar (1), and its output shaft with the coaxial fixed connection in top of pivot (2 e).
9. A powder continuous feeder according to claim 8, characterised in that the feeding assembly (2) further comprises a sealing cover (2h), said sealing cover (2h) is coaxially arranged at the bottom of the periphery of said fixed cylinder (2a), and said toothed ring (2d) and toothed wheel (2f) are both located inside said sealing cover (2 h).
10. The use method of the powder continuous feeder is characterized by comprising the following steps,
step one, a servo motor (2g) is started in advance, so that a bending opening (2b1) rotates along the circumferential direction relative to a fixed cylinder (2 a);
starting a first negative pressure air source communicated with a second air port of the first group of pipeline assemblies (4), namely enabling the first negative pressure air source to enable a material sucking part (3) communicated with the working end of the first group of pipeline assemblies (4) to generate negative pressure through the first group of pipeline assemblies (4);
step three, after the first group of negative pressure air sources work for a period of time, opening the second group of negative pressure air sources, after the first group of negative pressure air sources continue to work for a period of time, closing the first group of negative pressure air sources, and starting the first group of positive pressure pulse air sources;
step four, after the second group of negative pressure air sources work for a period of time, the third group of negative pressure air sources are opened, after the second group of negative pressure air sources continue to work for a period of time, the second group of negative pressure air sources are closed, and the second group of positive pressure pulse air sources are started;
step five, after the third group of negative pressure air sources work for a period of time, opening the first group of negative pressure air sources, closing the first group of positive pressure pulse air sources at the same time, and after the third group of negative pressure air sources continue to work for a period of time, closing the third group of negative pressure air sources and starting the third group of positive pressure pulse air sources;
and step six, repeating the step two to the step five.
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