CN209905953U - Powder micro-metering conveying scale - Google Patents
Powder micro-metering conveying scale Download PDFInfo
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- CN209905953U CN209905953U CN201920663375.4U CN201920663375U CN209905953U CN 209905953 U CN209905953 U CN 209905953U CN 201920663375 U CN201920663375 U CN 201920663375U CN 209905953 U CN209905953 U CN 209905953U
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Abstract
The utility model discloses a powder micro-metering conveying scale, which belongs to the technical field of powder weighing and conveying in the novel building material industry, and comprises a frame, a conveying device and a metering device, wherein the conveying device comprises a conveying cylinder and a first conveying screw rod, the conveying cylinder is arranged on the frame, a feed inlet of the conveying cylinder is communicated with the bottom of a storage bin, and a discharge outlet of the conveying cylinder is provided with a first overflow box; the first overflow box is communicated with the material storage barrel through a flexible connection device, and a material interception valve is arranged on the first overflow box; metering device includes measurement barrel and second conveyor screw, the storage barrel set up in the feed inlet of measurement barrel, weight sensor is erect to the storage barrel, weight sensor locates the frame, the discharge gate department of measurement barrel installs the second overflow box. The utility model discloses an automatic weighing and automatic transport of material have improved production efficiency and measurement accuracy.
Description
Technical Field
The utility model belongs to the technical field of novel airtight little measurement of building materials trade powder and transport, especially, relate to a super powder is little to measure and is carried balance.
Background
The ultrafine powder is particles with the diameter less than 10 mu m, the density is less than 1g/ml, and the ultrafine powder is widely applied to the novel building material industry. Since the volume and weight of a single ultra-fine powder material are very small, dust emission easily occurs during transportation, and the density difference between different ultra-fine powder materials is large, so that the ultra-fine powder materials are generally measured by weight during use. The ultrafine powder is one of powdery materials, is quite dangerous in the production and application processes, and is flammable, explosive and dust-raising which are quite harmful to human bodies.
At present, no special equipment for weighing and conveying ultrafine powder is designed in the prior art, weighing and adding are mainly carried out manually, the metering precision and the production efficiency are low, the metering consistency and the metering stability are poor, workers need to be in direct contact with the ultrafine powder during weighing, once explosion happens, the life of operators is seriously threatened, and the method is dangerous and unsafe.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the technical problem to be solved by the present invention is: the utility model provides a powder micro-metering conveying scale replaces artifical weighing and interpolation, realizes the automatic weighing and the automatic transport of material, improves production efficiency and measurement accuracy.
In order to solve the technical problem, the technical scheme of the utility model is that: the powder micro-metering conveying scale comprises a rack, a conveying device and a metering device, wherein the metering device is positioned below the conveying device; the conveying device comprises a conveying cylinder and a first conveying screw rod which is rotatably arranged in the conveying cylinder and driven by a first power device, the conveying cylinder is arranged on the rack, a feed inlet of the conveying cylinder is communicated with the bottom of the storage bin, and a discharge outlet of the conveying cylinder is provided with a first overflow box; the first overflow box is communicated with the material storage barrel through a flexible connection device, and a material interception valve is arranged on the first overflow box; metering device include the measurement barrel with rotate install in the measurement barrel and by second power device driven second conveyor screw, the storage barrel set up in the feed inlet of measurement barrel, weight sensor is erect to the storage barrel, weight sensor locates the frame, the discharge gate department of measurement barrel installs the second overflow box.
As an improvement, the discharge hole of the conveying cylinder is arranged at the top of the conveying cylinder; the discharge hole of the metering cylinder body is arranged at the top of the metering cylinder body.
As an improvement, a feeding cover plate is arranged at the top of the storage bin; and a temperature sensor and a pressure sensor are respectively arranged in the storage bin.
As an improvement, the soft connecting device is a cloth bag or a corrugated pipe.
As an improvement, an annular supporting seat arranged around the storage barrel is arranged on the machine frame, and three weight sensors are arranged on the annular supporting seat; the lateral wall of storage barrel is equipped with the ring flange, the ring flange erects in three weighing transducer.
As an improvement, two ends of the conveying cylinder are respectively provided with a first bearing seat, two ends of a first screw shaft of the first conveying screw are respectively provided with a first sealing cover matched with the first bearing seats, and a first sealing device is arranged between the first sealing cover and the first bearing seats; and a first bearing is arranged between the shaft head of the first screw shaft and the first bearing seat.
As a further improvement, the first bearing seat and the first screw shaft are both provided with an oil injection nozzle and an oil passage.
As an improvement, two ends of the metering cylinder are respectively provided with a second bearing seat, two ends of a second screw shaft of the second conveying screw are respectively provided with a second sealing cover matched with the second bearing seats, and a second sealing device is arranged between the second sealing cover and the second bearing seats; and a second bearing is arranged between the shaft head of the second screw shaft and the second bearing seat.
As a further improvement, an oil nozzle and an oil passage are arranged on the second bearing seat and the second screw shaft.
As an improvement, the material stopping valve is a pneumatic butterfly valve.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the utility model provides a powder micro-metering conveying scale is owing to designed conveyor and metering device, first power device drives first conveying screw rod and rotates like this, will fall into the material in the conveying barrel from the storage silo and carry to first overflow box, open the material intercepting valve, make the material slowly fall into in the storage barrel through the flexible coupling device, get into the measurement barrel again, second power device drives second conveying screw rod and rotates, carry the material in the measurement barrel to second overflow box, when weighing sensor detects the material in storage barrel and the measurement barrel and reaches required addition, close the material intercepting valve, the automatic weighing and the automatic conveying of material have been realized. The utility model provides a powder is little to measure and is carried balance has replaced the manual work and has weighed and add, realizes the automatic weighing and the automatic transport of material, has improved production efficiency and measurement accuracy.
The discharge hole of the conveying cylinder is formed in the top of the conveying cylinder; the discharge hole of the metering cylinder is formed in the top of the metering cylinder; therefore, when the material is output by the conveying cylinder and the metering cylinder, the material can be ensured to slowly overflow and flow down from the top of the conveying cylinder and the metering cylinder, and the material is prevented from being washed and uncontrollable in the conveying process, so that the aim of uniform conveying is fulfilled.
The feeding cover plate is arranged at the top of the storage bin, so that the storage bin can be sealed; because install temperature sensor and pressure sensor in the storage silo respectively, can detect the temperature and the pressure in the storage silo, prevent to take place danger.
The rack is provided with an annular supporting seat surrounding the storage barrel body, and the annular supporting seat is provided with three weight sensors; the lateral wall of storage barrel is equipped with the ring flange, the ring flange erects in three weighing transducer adopts three weighing transducer like this, has guaranteed the accuracy of metering result.
Because the two ends of the conveying cylinder are respectively provided with the first bearing seats, the two ends of the first screw shaft of the first conveying screw are respectively provided with the first sealing covers matched with the first bearing seats, and a first sealing device is arranged between the first sealing covers and the first bearing seats, materials (dust) can be prevented from entering the first bearings through the first sealing covers and the first sealing devices, and the first bearings are prevented from being damaged; meanwhile, the sealing performance of the conveying cylinder body can be ensured, and the fire caused by excessive oxygen absorption due to long-time contact of materials (ultrafine dust) and air and easy spontaneous combustion is avoided.
Because the two ends of the metering cylinder are respectively provided with the second bearing seats, the two ends of the second screw shaft of the second conveying screw are respectively provided with the second sealing covers matched with the second bearing seats, and a second sealing device is arranged between the second sealing covers and the second bearing seats, the materials (dust) can be prevented from entering the second bearings through the second sealing covers and the second sealing devices, and the second bearings are prevented from being damaged; meanwhile, the sealing performance of the metering cylinder body can be ensured, and the fire caused by excessive oxygen absorption due to long-time contact of materials (ultrafine dust) and air and easy spontaneous combustion can be avoided.
Drawings
FIG. 1 is a schematic structural view of a powder micro-metering conveying scale provided by the present invention;
FIG. 2 is a cross-sectional view of the delivery device;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a cross-sectional view of the metering device;
FIG. 5 is a partial enlarged view of FIG. 4 at B;
in the figure: 1-a rack, 11-an upper frame, 12-a lower frame, 13-a support, 14-an annular support seat, 2-a conveying device, 21-a conveying cylinder, 211-a feed inlet, 212-a discharge outlet, 22-a first motor, 23-a first speed reducer, 24-a first conveying screw, 241-a first screw shaft, 242-an oil injection nozzle, 243-an oil duct, 25-a first overflow box, 251-a pneumatic butterfly valve, 261-a first bearing seat, 262-a first bearing, 263-an oil injection nozzle, 264-an oil duct, 27-a first sealing cover, 281-an oil seal, 282-an oil seal, 29-a copper ring, 3-a metering device, 31-a cylinder, 311-a flange, 32-a metering cylinder and 321-a feed inlet, 322-a discharge port, 33-a second motor, 34-a second speed reducer, 35-a second conveying screw, 351-a second screw shaft, 352-an oil injection nozzle, 353-an oil duct, 36-a weight sensor, 37-a second overflow box, 381-a second bearing seat, 382-a second bearing, 383-the oil injection nozzle, 384-the oil duct, 39-a second sealing cover, 391-an oil seal, 392-the oil seal, 393-a copper ring, 4-a storage bin, 41-a feeding cover plate and 5-a soft connecting device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 5, the powder micro-metering conveying scale comprises a frame 1, wherein the frame 1 comprises an upper frame 11 and a lower frame 12, the powder micro-metering conveying scale further comprises a conveying device 2 and a metering device 3, and the metering device 3 is positioned below the conveying device 2.
The conveying device 2 comprises a conveying cylinder 21 and a first conveying screw 24 which is rotatably installed in the conveying cylinder 21 and driven by a first power device, the first power device comprises a first speed reducer 23 driven by a first motor 22, the first motor 22 is electrically connected with an electric control unit (not shown in the figure), the electric control unit is preferably a programmable controller, of course, the first power device can also directly select a motor and the like, the electric control unit can also select a microcomputer controller and the like, and details are not repeated herein; the conveying cylinder 21 is arranged on the upper frame body 11 of the rack 1, the feeding hole 211 of the conveying cylinder 21 is communicated with the bottom of the storage bin 4, the first overflow box 25 is arranged at the discharging hole 212 of the conveying cylinder 21, and the discharging hole 212 of the conveying cylinder 21 is arranged at the top of the conveying cylinder 21, so that when the conveying cylinder 21 outputs materials, the materials can be ensured to slowly overflow and flow down from the top of the conveying cylinder, the materials are prevented from being washed and uncontrollable in the conveying process, and the purpose of uniform conveying is achieved.
The metering device 3 comprises a metering cylinder 32 and a second conveying screw 35 which is rotatably arranged in the metering cylinder 32 and is driven by a second power device, the second power device comprises a second speed reducer 34 driven by a second motor 33, and the second motor 33 is electrically connected with an electric control unit; of course, the second power device may also directly select a motor or the like, the storage cylinder 31 is disposed at the feeding port 321 of the metering cylinder 32, the storage cylinder 31 is mounted on the weight sensor 36, the weight sensor 36 is disposed on the frame 1, the weight sensor 36 is electrically connected with the electronic control unit, specifically, the lower frame 12 of the frame 1 is provided with three L-shaped brackets 13 disposed around the storage cylinder 31, the mounting surface formed by the three brackets 13 is provided with the annular supporting seat 14, and the annular supporting seat 14 is provided with the three weight sensors 36; the outer side wall of the storage barrel body 31 is provided with a flange 311, the flange 311 is erected on the three weight sensors 36, and the three weight sensors 36 are adopted, so that the accuracy of a metering result is ensured. Of course, the number of the weight sensors 36 is not limited to three, and may also be two or four, etc., and those skilled in the art may select the weight sensors according to the actual situation, and will not be described herein again. The second overflow box 37 is installed at the discharge port 322 of the metering cylinder 32, and the discharge port 322 of the metering cylinder 32 is arranged at the top of the metering cylinder 32, so that when the metering cylinder 32 outputs materials, the materials can be ensured to slowly overflow and flow down from the top of the metering cylinder, the materials are prevented from being flushed and uncontrollable in the conveying process, and the purpose of uniform conveying is achieved.
A feeding cover plate 41 is arranged at the top of the storage bin 4, so that the storage bin 4 can be sealed; the storage bin 4 is internally provided with a temperature sensor (not shown in the figure) and a pressure sensor (not shown in the figure), the temperature sensor and the pressure sensor are respectively electrically connected with the electric control unit, and the temperature and the pressure in the storage bin 4 can be respectively detected through the temperature sensor and the pressure sensor, so that danger is prevented.
The two ends of the conveying cylinder 21 are respectively provided with a first bearing seat 261, the two ends of a first screw shaft 241 of the first conveying screw 24 are respectively provided with a first sealing cover 27 matched with the first bearing seat 261, a first sealing device is arranged between the first sealing cover 27 and the first bearing seat 261, the first sealing device comprises an oil seal 281 and an oil seal 282, and a copper ring 29 is further arranged between the corresponding end surfaces of the first sealing cover 27 and the first bearing seat 261; a first bearing 262 is arranged between the shaft head of the first screw shaft 24 and the first bearing seat 261, and materials (dust) can be prevented from entering the first bearing 262 through the first sealing cover 27 and the first sealing device, so that the first bearing 262 is prevented from being damaged; meanwhile, the tightness of the conveying cylinder body 21 can be ensured, and the occurrence of fire caused by excessive oxygen absorption due to long-time contact of materials (ultrafine dust) and air and easy spontaneous combustion is avoided.
An oil nozzle 263 and an oil passage 264 are provided on the first bearing housing 261, and an oil nozzle 242 and an oil passage 243 are provided on the first screw shaft 241, through which oil can be added through the oil nozzle 263 and the oil nozzle 242.
The two ends of the metering cylinder 32 are respectively provided with a second bearing seat 381, the two ends of a second screw shaft 351 of the second conveying screw 35 are respectively provided with a second sealing cover 39 matched with the second bearing seat 381, a second sealing device is arranged between the second sealing cover 39 and the second bearing seat 381, the second sealing device comprises an oil seal 391 and an oil seal 392, and a copper ring 393 is arranged between the corresponding end surfaces of the second sealing cover 39 and the second bearing seat 381; a second bearing 382 is arranged between the shaft head of the second screw shaft 351 and the second bearing seat 381, so that materials (dust) can be prevented from entering the second bearing 382 through the second sealing cover 39 and a second sealing device, and the second bearing 382 is prevented from being damaged; meanwhile, the tightness of the metering cylinder 32 can be ensured, and the occurrence of fire caused by excessive oxygen absorption due to long-time contact of materials (ultrafine dust) and air and easy spontaneous combustion is avoided.
The second bearing block 381 is provided with an oil nipple 383 and an oil passage 384, and the second screw shaft 351 is provided with an oil nipple 352 and an oil passage 353, through which lubricating oil can be added through the oil nipple 383 and the oil nipple 352.
When the automatic weighing device is used, the first motor 22 drives the first speed reducer 23 to move so as to drive the first conveying screw 24 to rotate, materials falling into the conveying cylinder 21 from the storage bin 4 are conveyed to the first overflow box 25, the electronic control unit automatically opens the pneumatic butterfly valve 251 to enable the materials to slowly fall into the storage cylinder 31 through the flexible connecting device 5 and then enter the metering cylinder 32, the second motor 33 drives the second speed reducer 34 to move so as to drive the second conveying screw 35 to rotate, the materials in the metering cylinder 32 are conveyed to the second overflow box 37, when the weight sensor 36 detects that the materials in the storage cylinder 31 and the metering cylinder 32 reach the required adding amount, the weight sensor 36 sends a signal to the electronic control unit, and the electronic control unit controls the pneumatic butterfly valve 251 to close, so that the automatic weighing and the automatic conveying of the materials are realized. If the material is superfine powder, because the superfine powder has mobility, can pass through the rotational speed of electrically controlled device control first motor 22 and second motor 33 to make first conveying screw 24 and second conveying screw 35 rotate slowly, make the material slowly flow, guarantee that the velocity of flow and the delivery capacity of material can be controlled.
It should be noted that the powder micro-metering conveying scale is not limited to metering and conveying ultra-fine powder, and can also meter other powder.
The utility model provides a powder is little to measure and is carried balance has replaced the manual work and has weighed and add, realizes the automatic weighing and the automatic transport of material, has improved production efficiency and measurement accuracy.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The powder micro-metering conveying scale comprises a rack and is characterized by further comprising a conveying device and a metering device, wherein the metering device is positioned below the conveying device;
the conveying device comprises a conveying cylinder and a first conveying screw rod which is rotatably arranged in the conveying cylinder and driven by a first power device, the conveying cylinder is arranged on the rack, a feed inlet of the conveying cylinder is communicated with the bottom of the storage bin, and a discharge outlet of the conveying cylinder is provided with a first overflow box;
the first overflow box is communicated with the material storage barrel through a flexible connection device, and a material interception valve is arranged on the first overflow box;
metering device include the measurement barrel with rotate install in the measurement barrel and by second power device driven second conveyor screw, the storage barrel set up in the feed inlet of measurement barrel, weight sensor is erect to the storage barrel, weight sensor locates the frame, the discharge gate department of measurement barrel installs the second overflow box.
2. The powder micro-metering conveying scale of claim 1, wherein the discharge port of the conveying cylinder is arranged at the top of the conveying cylinder; the discharge hole of the metering cylinder body is arranged at the top of the metering cylinder body.
3. The powder micro-metering conveying scale of claim 1, wherein a feeding cover plate is installed at the top of the storage bin; and a temperature sensor and a pressure sensor are respectively arranged in the storage bin.
4. The powder micro-metering conveying scale of claim 1, wherein the flexible connection device is a cloth bag or a corrugated pipe.
5. The powder micro-metering conveying scale of claim 1, wherein an annular support seat is arranged on the machine frame and surrounds the storage cylinder, and three weight sensors are arranged on the annular support seat; the lateral wall of storage barrel is equipped with the ring flange, the ring flange erects in three weighing transducer.
6. The powder micro-metering conveying scale of claim 1, wherein two ends of the conveying cylinder are respectively provided with a first bearing seat, two ends of a first screw shaft of the first conveying screw are respectively provided with a first sealing cover matched with the first bearing seats, and a first sealing device is arranged between the first sealing cover and the first bearing seats; and a first bearing is arranged between the shaft head of the first screw shaft and the first bearing seat.
7. The powder micro-metering conveying scale of claim 6, wherein the first bearing block and the first screw shaft are provided with an oil nozzle and an oil passage.
8. The powder micro-metering conveying scale of claim 1, wherein two ends of the metering cylinder are respectively provided with a second bearing seat, two ends of a second screw shaft of the second conveying screw are respectively provided with a second sealing cover matched with the second bearing seats, and a second sealing device is arranged between the second sealing cover and the second bearing seats; and a second bearing is arranged between the shaft head of the second screw shaft and the second bearing seat.
9. The powder micro-metering conveying scale of claim 8, wherein an oil nozzle and an oil passage are arranged on the second bearing block and the second screw shaft.
10. The powder micro-metering conveying scale of claim 1, wherein the material interception valve is a pneumatic butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920663375.4U CN209905953U (en) | 2019-05-09 | 2019-05-09 | Powder micro-metering conveying scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920663375.4U CN209905953U (en) | 2019-05-09 | 2019-05-09 | Powder micro-metering conveying scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209905953U true CN209905953U (en) | 2020-01-07 |
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ID=69047568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920663375.4U Active CN209905953U (en) | 2019-05-09 | 2019-05-09 | Powder micro-metering conveying scale |
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| Country | Link |
|---|---|
| CN (1) | CN209905953U (en) |
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- 2019-05-09 CN CN201920663375.4U patent/CN209905953U/en active Active
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