CN114906356A - Powder feeding metering device and using method thereof - Google Patents
Powder feeding metering device and using method thereof Download PDFInfo
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- CN114906356A CN114906356A CN202110180585.XA CN202110180585A CN114906356A CN 114906356 A CN114906356 A CN 114906356A CN 202110180585 A CN202110180585 A CN 202110180585A CN 114906356 A CN114906356 A CN 114906356A
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- 239000000843 powder Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 75
- 238000004806 packaging method and process Methods 0.000 claims abstract description 63
- 238000003860 storage Methods 0.000 claims abstract description 13
- 239000000428 dust Substances 0.000 claims description 50
- 239000003566 sealing material Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 10
- 239000002994 raw material Substances 0.000 description 7
- 206010020649 Hyperkeratosis Diseases 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
- B65B1/08—Methods of, or means for, filling the material into the containers or receptacles by vibratory feeders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
- B65B1/10—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders
- B65B1/12—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders of screw type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/28—Controlling escape of air or dust from containers or receptacles during filling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
- B65B1/32—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by weighing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/28—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for discharging completed packages from machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quality & Reliability (AREA)
- Supply Of Fluid Materials To The Packaging Location (AREA)
- Basic Packing Technique (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Abstract
The invention discloses a powder feeding metering device and a using method thereof, and belongs to the field of material feeding metering. Comprises a main frame, a storage bin, a screw feeder, a vibration feeder, a weight sensor and a controller; the bin is arranged at the top of the main frame, and the screw feeder is arranged below the discharge hole at the bottom of the bin; the vibrating feeder comprises a vibrator arranged on the main frame and a shell fixedly connected with the vibrator, an outlet shell of the screw feeder is inserted into a shell inlet of the vibrating feeder, a certain vibrating gap is reserved between the outlet shell of the screw feeder and the shell inlet of the vibrating feeder, a discharging barrel is fixedly arranged at the shell outlet of the vibrating feeder, and the weight of the material falling into the packaging bag is measured through a weight sensor; the driving motor, the vibrator and the weight sensor are connected with the controller. The invention firstly feeds materials quickly through the screw feeder and then feeds materials accurately at low speed through the vibration feeder, thereby effectively preventing materials from hardening and realizing quick and accurate metering.
Description
Technical Field
The invention relates to the field of material feeding and metering, in particular to a powder feeding and metering device and a using method thereof.
Background
The powder feeding and metering device is a feeding and metering device for materials, is widely applied to metering devices of chemical industry, food, medicine and the like, and realizes the feeding and packaging process of powder. The existing powder feeding device has the modes of spiral feeding, vibration feeding and the like.
The spiral feed transports the powder through the screw conveyer, and because the hydroscopicity of many raw materials, the raw materials absorbs water by wetting very easily, especially when powder feed metering device is applied to joining in marriage fertile field, joins in marriage fertile raw materials and have very strong hydroscopicity. The conveying mode of the screw conveyor is extrusion conveying, and the water-absorbing and damp-absorbing raw materials are easily hardened in the screw conveyor under extrusion, so that feeding conveying cannot be realized. In order to solve the hardening problem of spiral conveying, the screw pitch needs to be increased. However, when powder is fed and packaged, not only the raw materials need to be conveyed, but also the conveyed raw materials need to be accurately metered, so that the weight of each bag of powder after packaging is the same. Too large a pitch can result in the inability to accurately meter the material being conveyed.
Vibration feed carries the raw materials through the vibrations of delivery board, though vibration feed can realize more accurate measurement, vibration feed speed is very slow, can't satisfy the rapid production of powder feed packing.
Disclosure of Invention
The invention provides a powder feeding metering device and a using method thereof.
The technical scheme provided by the invention is as follows:
the utility model provides a powder feed metering device, includes main frame, feed bin, screw feeder, vibratory feeder, weighing sensor and controller, wherein:
the bin is arranged at the top of the main frame, the screw feeder is arranged below a discharge hole at the bottom of the bin, and the screw feeder is driven by a driving motor;
the vibration feeder comprises a vibrator and a shell, the vibrator is mounted on the main frame, the shell is fixedly connected with the vibrator, an outlet shell of the screw feeder is inserted into a shell inlet of the vibration feeder, a certain vibration gap is reserved between the outlet shell of the screw feeder and the shell inlet of the vibration feeder, a blanking barrel enabling materials to fall into a packaging bag is fixedly arranged at a shell outlet of the vibration feeder, and the weight of the materials in the packaging bag is weighed through a weight sensor;
the driving motor, the vibrator and the weight sensor are all connected with the controller.
Further, the spiral tail end of the spiral feeder is flush with the outlet shell of the spiral feeder, or the spiral tail end of the spiral feeder extends out of the outlet shell of the spiral feeder.
Furthermore, a dust hood cylinder surrounding the blanking cylinder is arranged outside the blanking cylinder, a certain gap is formed between the inner surface of the dust hood cylinder and the outer surface of the blanking cylinder, the upper end of the dust hood cylinder is connected with the upper end of the blanking cylinder through a flexible air-impermeable material, an air outlet is formed in the side wall of the dust hood cylinder, the air outlet is connected with a dust removal device through an air pipe, and the dust removal device is connected with a fan.
Furthermore, a bag clamping device for clamping the upper opening of the packaging bag is arranged on the dust hood barrel, one end of the weight sensor is arranged on the main frame, and the other end of the weight sensor is connected with the dust hood barrel.
Further, a flashboard is arranged at an outlet of the shell of the vibratory feeder, the degree of opening and closing of the flashboard is controlled by a driving device, and the driving device is connected with the controller.
Furthermore, a mounting plate is fixedly arranged on the main frame or the storage bin, a certain vibration gap is reserved between the mounting plate and the outer wall of the shell of the vibration feeder, a certain vibration gap is reserved between the flashboard and the shell of the vibration feeder, and the driving device is mounted on the mounting plate.
Further, install the shock attenuation callus on the sole on the vibrator, the vibrator passes through the shock attenuation callus on the sole setting on the main frame.
Furthermore, a counterweight steel plate is arranged on the vibrator.
Furthermore, a soft sealing material is arranged between the outlet shell of the screw feeder and the inlet of the shell of the vibration feeder.
Further, the fan and the dust removing device are installed inside the main frame and located at the bottom of the main frame.
A method for using the powder feeding and metering device, the method comprising:
s1: arranging a packaging bag below the blanking barrel, starting a driving motor and a vibrator by a controller, enabling materials in a storage bin to fall into the packaging bag from the blanking barrel under the conveying of a screw feeder and a vibration feeder, and measuring the weight of the materials in the packaging bag in real time by the controller through a weight sensor;
s2: when the weight of the materials in the packaging bag reaches a set weight, the controller turns off the driving motor, keeps the vibrator on, and allows the materials remained in the shell of the vibration feeder to fall into the packaging bag from the blanking barrel under the vibration conveying of the vibration feeder, wherein the set weight is less than the target weight of the packaging bag;
s3: when the weight of the materials in the packaging bag reaches the target weight, the controller closes the vibrator, stops feeding and removes the packaging bag.
Further, the method further comprises:
s4: when the packaging bag is removed, the controller starts the fan, and the material dust is sucked into the dust removal device through the fan to be removed.
Further, in S1 and S2, the controller controls the opening and closing degree of the shutter by the driving device according to the feeding speed;
in said S3, the controller closes the shutter by the driving means while removing the package.
The invention has the following beneficial effects:
in the one-time feeding and metering process, the screw feeder is used for feeding quickly, and when the weight of the material is close to the target weight, the vibration feeder is used for feeding accurately at a low speed, so that the material is effectively prevented from being hardened, and quick and accurate metering is realized.
Drawings
FIG. 1 is a perspective view of a powder feed metering device of the present invention;
FIG. 2 is a front view of the powder feed metering device of the present invention;
FIG. 3 is a side view of the powder feed metering device of the present invention;
FIG. 4 is a sectional view taken along line A-A of one embodiment of the powder feed metering device of the present invention;
FIG. 5 is a sectional view taken along line A-A of another embodiment of the powder feed metering device of the present invention;
FIG. 6 is a top view of the powder feed metering device of the present invention.
Detailed Description
To make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a powder feeding and metering device, which comprises a main frame 1, a storage bin 2, a screw feeder 4, a vibration feeder, a weight sensor 10 and a controller, as shown in figures 1-6, wherein:
the storage bin 2 is arranged at the top of the main frame 1, the screw feeder 4 is arranged below the discharge port 3 at the bottom of the storage bin 2, and the screw feeder 4 is driven by the driving motor 5. The driving motor can be a speed reducing motor, and the shaft of the screw feeder is directly connected with a speed reducer shaft hole of the speed reducing motor.
The vibratory feeder comprises a vibrator 8 and a shell 6, the vibrator 8 is installed on the main frame 1, the shell 6 is fixedly connected with the vibrator 8, an outlet shell 7 of the screw feeder 4 is inserted into a shell inlet 22 of the vibratory feeder, a certain vibration gap is reserved between the outlet shell 7 of the screw feeder 4 and the shell inlet 22 of the vibratory feeder, a blanking barrel 9 enabling materials to fall into a packaging bag is fixedly arranged at a shell outlet 23 of the vibratory feeder, and the weight of the materials in the packaging bag is weighed through a weight sensor 10.
The screw feeder and the vibratory feeder can be horizontally arranged or can be obliquely arranged at a certain angle downwards along the powder conveying direction, and the invention is not limited to the screw feeder and the vibratory feeder.
The driving motor 5, the vibrator 8 and the weight sensor 10 are all connected with a controller, the controller is located in a control box 11, and the control box 11 is arranged on the side face of the main frame 1.
The invention is used for feeding measurement and feeding package of powder, in particular to the feeding package of fertilizer in the fertilizer preparation process, and the using method of the invention is as follows:
s1: the packaging bag is arranged below the blanking barrel, the driving motor and the vibrator are started by the controller, materials in the storage bin fall into the packaging bag from the blanking barrel under the conveying of the screw feeder and the vibration feeder, and the controller measures the weight of the materials in the packaging bag in real time through the weight sensor.
In the invention, the materials can be poured into the storage bin manually, and can also be conveyed into the storage bin in other modes, such as conveying by a lifting machine and the like.
In the step, the packaging bag can be placed on a metering scale positioned below the charging barrel, the metering scale and the main frame are two separated independent devices, and the weight sensor is positioned in the metering scale to measure the weight of the packaging bag in real time. Of course, the packaging bag can be clamped on the blanking barrel, and the weight of the packaging bag is measured in real time through the weight sensor arranged on the main frame.
This step is used for carrying out quick feed in the packing bag, and screw feeder conveying speed is fast to screw feeder's pitch is great, sets up the pitch according to the material, makes the material can not harden in screw feeder.
S2: when the weight of the materials in the packaging bag reaches the set weight, the controller turns off the driving motor, the vibrator is kept on, and the materials remained in the shell of the vibration feeder fall into the packaging bag from the blanking barrel under the vibration conveying of the vibration feeder. Wherein the set weight is less than and close to the target weight of the package.
Because the screw pitch of the screw feeder is large, the conveyed materials are difficult to accurately control, and when the weight of the materials in the packaging bag is close to the target weight of the packaging bag, the screw feeder is continuously used for conveying, so that the weight of the materials in the packaging bag cannot be accurately measured.
Therefore, when the weight of the materials in the packaging bag approaches the target weight of the packaging bag, the driving motor is turned off, and the screw feeder is not used for conveying any more. The materials left in the shell of the vibration feeder fall into the packaging bag from the blanking barrel in a vibration conveying mode, so that low-speed accurate feeding is realized.
S3: when the weight of the materials in the packaging bag reaches the target weight, the controller closes the vibrator, the feeding is stopped, the packaging bag is removed, and the feeding and metering process is completed.
In the one-time feeding and metering process, the screw feeder is used for feeding quickly, and when the weight of the material is close to the target weight, the vibration feeder is used for feeding accurately at a low speed, so that the material is effectively prevented from being hardened, and quick and accurate metering is realized.
After absorbing water and being affected with damp, the material is easy to stick on the inner surface of the blanking barrel, and in order to solve the problem, the shell 6 and the blanking barrel 9 are fixed together to vibrate together, and the material is prevented from sticking on the inner surface of the blanking barrel under the action of vibration.
The casing and the blanking drum can be fixed together to vibrate together in a plurality of ways, which the invention is not limited to, for example: the shell and the blanking barrel can be integrally processed and formed, and are integrally formed, or the shell and the blanking barrel are two parts which are separated, and are welded or fixed together through bolts after being assembled.
In the invention, the material is conveyed into the shell of the vibratory feeder through the screw feeder, and then the material is conveyed into the shell of the vibratory feeder for a certain distance to reach the material dropping barrel. When the viscosity of the material is high, the material is not smoothly conveyed in the shell of the vibratory feeder and is easy to block. In order to solve the problem, as shown in fig. 5, the screw tail end 24 of the screw feeder extends out of the outlet shell 7 of the screw feeder by a certain length, the screw extending out of the outlet shell by a certain length is positioned in the shell of the vibratory feeder, and the material in the shell of the vibratory feeder is conveyed to the blanking barrel, so that the blockage of the shell of the vibratory feeder caused by the high viscosity of the material is prevented.
When the viscosity of the material is small, the screw end 24 of the screw feeder does not need to extend out of the outlet housing 7 of the screw feeder, but only needs to be flush with the screw end 24 of the screw feeder and the outlet housing 7 of the screw feeder, as shown in fig. 4.
When the weight of the materials in the packaging bag reaches the target weight, the feeding is stopped, the feeding and conveying are completed once, and the packaging bag is removed for subsequent processes. Because the materials contain dust, dust pollution is inevitably caused in the process of removing the packaging bag, and in order to solve the problem, a dust removing cover cylinder 12 which surrounds the blanking cylinder 9 is arranged outside the blanking cylinder 9, a certain gap is arranged between the inner surface of the dust removing cover cylinder 12 and the outer surface of the blanking cylinder 9, the upper end of the dust removing cover cylinder 12 is connected with the upper end of the blanking cylinder 9 through a flexible air-tight material 21, an air outlet is arranged on the side wall of the dust removing cover cylinder 12, the air outlet is connected with a dust removing device 14 through an air pipe 13, and the dust removing device 14 is connected with a fan 15.
Based on the above structure, the using method of the present invention further comprises:
s4: when the packaging bag is removed, the controller starts the fan, and the material dust is sucked into the dust removal device through the fan, so that dust removal is realized.
During dust removal, material dust firstly enters a gap between the dust removing cover barrel and the blanking barrel from the bottoms of the dust removing cover barrel and the blanking barrel, then sequentially enters the dust removing device from the air outlet and the air pipe, the material dust is separated from air, the air is discharged from the fan after dust removal, and the separated material dust can be added into the storage bin for reuse.
Because the blanking cylinder vibrates along with the shell, and the dust hood cylinder does not vibrate, the upper end of the dust hood cylinder is connected with the upper end of the blanking cylinder through flexible air-tight materials such as plastic cloth, sealing is achieved, and the blanking cylinder can vibrate and the dust hood cylinder does not vibrate.
Further, a bag clamping device 16 for clamping the upper opening of the packaging bag is arranged on the dust hood cylinder 12, one end of the weight sensor 10 is arranged on the main frame 1, and the other end of the weight sensor is connected with the dust hood cylinder 12 for weighing the materials in the packaging bag. When the weight of the materials in the packaging bag reaches the target weight, the bag clamping device is automatically opened, and the packaging bag automatically falls.
As a modification of the invention, a shutter 17 is arranged at the outlet 23 of the housing of the vibratory feeder, the shutter 17 controls the degree of opening and closing by a driving device 18, the driving device 18 is connected with a controller, and in one example, the driving device 18 can be an air cylinder.
In the aforementioned S1 and S2, the controller may control the opening and closing degree of the shutter by the driving means according to the feeding speed. In S3, the controller may close the shutter by the driving means while removing the packaging bag.
Illustratively, when rapid feeding is desired, shutter 17 is opened to a large extent, or fully opened; when medium-speed or low-speed feeding is required, the opening degree of the gate 17 is small, feeding is not required after the weight of the materials in the packaging bag reaches the target weight, and the controller controls the driving device to close the gate.
The flashboard can be a flashboard, and the opening and closing degree is controlled by controlling the opening angle of the flashboard through the controller; the shutter may be a plurality of shutter units arranged in parallel, and the degree of opening and closing of the shutter units may be controlled by a controller.
Illustratively, the shutter may include a first shutter unit 17 and a second shutter unit (not shown) arranged in parallel, the first shutter unit 17 and the second shutter unit being driven to open and close by a first driving device 18 and a second driving device 20, respectively, the first driving device 18 and the second driving device 20 being connected to the controller.
Based on the above structure, the above S1 specifically includes:
s11: the upper opening of the packaging bag is clamped on the dust removing cover cylinder through the bag clamping device, the first gate plate unit and the second gate plate unit are opened by the first driving device and the second driving device under the control of the controller, and the weight of materials in the packaging bag is measured in real time through the weight sensor by the controller.
S12: the controller starts a driving motor and a vibrator, the driving motor drives the screw feeder to rotate at a set high speed, and the vibrator drives a shell of the vibration feeder to vibrate at a set amplitude to convey the materials into the packaging bag. The step is a rapid charging process.
Likewise, S2 specifically includes:
s21: when the weight of the materials in the packaging bag reaches a set first weight, the driving motor drives the screw feeder to rotate at a set low speed, and the vibrator drives the shell of the vibration feeder to vibrate at a set amplitude to convey the materials into the packaging bag. The step is a medium-speed feeding process.
S22: when the weight of the materials in the packaging bag reaches a set second weight, the controller turns off the driving motor, the vibrator is kept to be opened, the controller controls the first driving device to turn off the first gate plate unit, and the materials left in the vibratory feeder fall into the packaging bag from the blanking cylinder under the vibration conveying of the vibratory feeder shell. The step is a low-speed accurate feeding process.
Likewise, S3 specifically includes:
s31: when the weight of the materials in the packaging bag reaches the target weight, the controller closes the vibrator, the vibrator stops vibrating, and the controller controls the second driving device to close the second gate plate unit and stop feeding; the bag clamping device automatically loosens the bag to finish a feeding and metering process.
According to the bag falling device, constant-speed and rapid feeding is achieved through the spiral conveyor, materials flow into the vibration feeder, the vibration feeder can achieve accurate feeding, the materials are metered through the weight sensor arranged on the bag clamping device, and the dust generated in the bag falling process is recycled through the air pipe by the dust removal device.
In the invention, a mounting plate 25 is fixedly arranged on the main frame 1 or the storage bin 2, the mounting plate can be positioned above the shell of the vibratory feeder 3, a certain vibration gap is reserved between the mounting plate 25 and the outer wall of the shell 6 of the vibratory feeder 3, a certain vibration gap is reserved between the gate plate 17 and the shell 6 of the vibratory feeder 3, and the driving device 18 of the gate plate 17 is arranged on the mounting plate 25.
When the housing 6 of the vibration feeder 3 vibrates, the mounting plate 25 and the gate 17 do not vibrate together with the housing 6 of the vibration feeder 3 due to the existence of the vibration gap between the mounting plate 25 and the housing 6 of the vibration feeder 3 and the existence of the vibration gap between the gate 17 and the housing 6 of the vibration feeder 3, the driving device 18 on the mounting plate 25 does not vibrate, the driving device 18 is prevented from being damaged due to vibration, and the service life of the driving device 18 is prolonged.
In order to improve the sealing performance of the casing 6 of the vibratory feeder 3, a soft sealing material such as rubber or soft rubber may be provided in the vibration gap between the shutter 17 and the casing 6 of the vibratory feeder 3.
The vibrator 8 is located inside the main frame 1 and below the casing 6 of the vibration feeder, and a shock-absorbing foot pad is installed on the vibrator 8, and the vibrator 8 is arranged on the main frame 1 through the shock-absorbing foot pad. The shock attenuation callus on the sole can reduce the vibration of main frame, noise abatement.
The vibrator 8 is further provided with a counterweight steel plate, the counterweight steel plate is used for increasing the mass of the main frame, the vibration is smaller when the mass is larger, the vibration of the main frame can be effectively reduced, and particularly the vibration of the lower part of the main frame along with the vibrator can be reduced.
A soft sealing material 19 such as sponge and soft rubber is arranged between the outlet shell 7 of the screw feeder and the shell inlet 22 of the vibration feeder, and the soft sealing material can realize the sealing of the connection part of the vibration feeder and the screw feeder and also prevent the screw feeder from vibrating together with the vibration feeder.
The fan and the dust removal device are arranged in the main frame and positioned at the bottom of the main frame, a guard plate can be arranged at the bottom of the main frame, and a door capable of being opened and closed is arranged on the guard plate; the air pipe on the dust removing device can be directly connected with the bag clamping device.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (12)
1. The utility model provides a powder feed metering device which characterized in that, includes main frame, feed bin, screw feeder, vibratory feeder, weighing transducer and controller, wherein:
the bin is arranged at the top of the main frame, the screw feeder is arranged below a discharge hole at the bottom of the bin, and the screw feeder is driven by a driving motor;
the vibration feeder comprises a vibrator and a shell, the vibrator is mounted on the main frame, the shell is fixedly connected with the vibrator, an outlet shell of the screw feeder is inserted into a shell inlet of the vibration feeder, a certain vibration gap is reserved between the outlet shell of the screw feeder and the shell inlet of the vibration feeder, a blanking barrel enabling materials to fall into a packaging bag is fixedly arranged at a shell outlet of the vibration feeder, and the weight of the materials in the packaging bag is weighed through a weight sensor;
the driving motor, the vibrator and the weight sensor are all connected with the controller.
2. A powder feed metering device as claimed in claim 1, wherein the screw end of the screw feeder is flush with the outlet housing of the screw feeder or the screw end of the screw feeder extends a length beyond the outlet housing of the screw feeder.
3. A powder feeding and metering device as claimed in claim 1 or 2, wherein a dust hood cylinder surrounding the blanking cylinder is arranged outside the blanking cylinder, a certain gap is formed between the inner surface of the dust hood cylinder and the outer surface of the blanking cylinder, the upper end of the dust hood cylinder is connected with the upper end of the blanking cylinder through a flexible air-tight material, an air outlet is formed in the side wall of the dust hood cylinder, the air outlet is connected with a dust removal device through an air pipe, and the dust removal device is connected with a fan.
4. The powder feeding and metering device of claim 3, wherein the dust hood barrel is provided with a bag clamping device for clamping the upper opening of the packaging bag, one end of the weight sensor is arranged on the main frame, and the other end of the weight sensor is connected with the dust hood barrel.
5. A powder feeding and metering device as claimed in claim 1 or 2, wherein a shutter is arranged at the outlet of the casing of the vibratory feeder, the shutter is controlled to open and close by a driving device, and the driving device is connected with the controller.
6. The powder feeding and metering device of claim 5, wherein a mounting plate is fixedly arranged on the main frame or the storage bin, a certain vibration gap is reserved between the mounting plate and the outer wall of the shell of the vibratory feeder, a certain vibration gap is reserved between the gate plate and the shell of the vibratory feeder, and the driving device is arranged on the mounting plate.
7. A powder feeding and metering device as claimed in claim 1 or 2, wherein the vibrator is provided with a shock-absorbing foot pad, and the vibrator is arranged on the main frame through the shock-absorbing foot pad.
8. A powder feeding and metering device as claimed in claim 7, wherein the vibrator is provided with a steel counterweight plate.
9. A powder feed metering device as claimed in claim 1 or claim 2, wherein a soft sealing material is provided between the outlet housing of the screw feeder and the inlet of the housing of the vibratory feeder.
10. Use of the powder feed metering device of any of claims 1-9, wherein said method comprises:
s1: arranging a packaging bag below the blanking barrel, starting a driving motor and a vibrator by a controller, enabling materials in a storage bin to fall into the packaging bag from the blanking barrel under the conveying of a screw feeder and a vibration feeder, and measuring the weight of the materials in the packaging bag in real time by the controller through a weight sensor;
s2: when the weight of the materials in the packaging bag reaches a set weight, the controller turns off the driving motor, keeps the vibrator on, and allows the materials remained in the shell of the vibratory feeder to fall into the packaging bag from the blanking cylinder under the vibration conveying of the vibratory feeder, wherein the set weight is smaller than the target weight of the packaging bag;
s3: when the weight of the materials in the packaging bag reaches the target weight, the controller closes the vibrator, stops feeding and removes the packaging bag.
11. The method of using a powder feed metering device of claim 10, further comprising:
s4: when the packaging bag is removed, the controller starts the fan, and material dust is sucked into the dust removal device through the fan to be removed.
12. The use method of powder feeding and metering device of claim 10 or 11, wherein in S1 and S2, the controller controls the opening and closing degree of the shutter by the driving device according to the feeding speed;
in said S3, the controller closes the shutter by the driving means while removing the package.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115556978A (en) * | 2022-10-10 | 2023-01-03 | 供能工业科技秦皇岛有限公司 | Quantitative packaging machine with low error rate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115556978A (en) * | 2022-10-10 | 2023-01-03 | 供能工业科技秦皇岛有限公司 | Quantitative packaging machine with low error rate |
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