CN212458581U - Continuous weighing device - Google Patents
Continuous weighing device Download PDFInfo
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- CN212458581U CN212458581U CN202021585749.4U CN202021585749U CN212458581U CN 212458581 U CN212458581 U CN 212458581U CN 202021585749 U CN202021585749 U CN 202021585749U CN 212458581 U CN212458581 U CN 212458581U
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- buffer bin
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- 238000005303 weighing Methods 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 186
- 230000007423 decrease Effects 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Abstract
The utility model discloses a continuous weighing device, which comprises a belt weigher, a buffer bin and a material level instrument; the belt scale comprises a conveying belt, a variable frequency motor and a weighing unit; the buffering bin is located conveyor belt's top, has seted up material flow channel in the buffering bin, and material flow channel's exit end is close to conveyor belt's transport face, and the last edge of lateral wall bottom edge of buffering bin offers the material export that is linked together with material flow channel's exit end, and the material flows through material flow channel, conveyor belt, material export and weighing unit in proper order. The utility model discloses can make the material in the surge bin remain throughout in the certain limit according to material altitude mixture control conveyor belt speed, the material through the last equipment whereabouts of material buffering in the surge bin is to conveyor belt's impact, guarantees simultaneously from the material height of material export outflow all the time with the high phase-match of material export to guarantee the accuracy of weighing.
Description
Technical Field
The utility model relates to a weighing-appliance field especially relates to a continuous weighing device.
Background
In the construction waste disposal line system, for weighing the content and the production quantity of each material, a belt scale is adopted for continuous weighing, namely, a group of weighing carrier rollers are added near a driving roller of a belt conveyor or in the middle of the belt conveyor, and the passing materials are subjected to accumulative metering. The feeding device is a discharging chute of the previous device, and the uniformity of the materials mainly depends on the specific gravity of each material to be treated and the connectivity of the feeding materials. The proportion of the materials of the construction waste is unstable, so that the proportion of various materials is changed greatly, the material layer on the belt weigher is sometimes thicker, sometimes interrupted or thinner, the weighing requirement of the thick materials can be met by selecting a sensor with a large weighing range, but the weighing precision is not high and the error is larger when the materials are thinner; the sensor with a small weighing range is selected, so that the weighing precision when the material is thin can be met, but the weighing range when the material is thick is difficult to meet. In addition, the construction waste often contains large materials after being crushed, so that the belt is impacted greatly, and the belt scale is unstable.
The utility model discloses a utility model patent application number 201820984702.1 discloses a novel belt weigher, and it is through setting up the material shaper at the conveyer belt initiating terminal, makes the material pass through material shaper roof and the extrusion of curb plate and finally evenly distributed on the conveyer belt, improves the accuracy of weighing.
However, the above technical scheme is only to shape the materials which are already dropped on the conveying belt, the materials still directly drop on the conveying belt, and if the material is used in a construction waste disposal line, the impact of the large materials on the conveying belt still cannot be avoided. Simultaneously, above-mentioned utility model patent is applicable to the material that is more even mountain peak form, when the very thin material of thickness to appearing on a large scale, then can appear because material thickness is less than the export of shaper in a period to can't realize letting material thickness keep the purpose at a take the altitude.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a continuous weighing device to solve the problem that above-mentioned prior art exists, according to material altitude mixture control conveyor belt speed, make the material in the surge bin remain throughout at the certain limit, the material through the last equipment whereabouts of material buffering in the surge bin is to conveyor belt's impact, guarantees simultaneously from the material height of material export outflow all the time with the high phase-match of material export, thereby guarantees the accuracy of weighing.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a continuous weighing device, which comprises a belt weigher, a buffer bin and a material level meter arranged on the buffer bin;
the belt scale comprises a conveying belt, a variable frequency motor for driving the conveying belt to move and a weighing unit;
the buffer bin is positioned above the conveying belt, a material flow channel is formed in the buffer bin, the outlet end of the material flow channel is close to the conveying surface of the conveying belt, a material outlet communicated with the outlet end of the material flow channel is formed in the buffer bin along the bottom edge of the side wall, and materials sequentially flow through the material flow channel, the conveying belt, the material outlet and the weighing unit;
presetting a material height threshold value in the buffer bin, controlling the variable frequency motor to increase the rotating speed when the material level instrument detects that the material height is higher than the threshold value, and controlling the variable frequency motor to decrease the rotating speed when the material level instrument detects that the material height is lower than the threshold value.
Preferably, the material outlet is further provided with an adjusting baffle for adjusting the height of the material outlet.
Preferably, a hydraulic cylinder is further installed on the side wall of the buffer bin, the output end of a piston rod of the hydraulic cylinder is connected with the adjusting baffle, and the hydraulic cylinder drives the adjusting baffle to move longitudinally along the outer wall of the buffer bin.
Preferably, the outer wall of the buffer bin is provided with a longitudinal guide groove, and the adjusting baffle is provided with a guide block matched with the guide groove.
Preferably, the material level meter is arranged above the materials in the buffer bin, a material baffle is further arranged at the feed inlet of the buffer bin, and the material baffle is arranged on one side, close to the material inlet, of the material level meter.
Preferably, the material level meter is an ultrasonic material level meter.
Preferably, the bottom end of the side wall of the buffer bin is attached to the conveying belt.
Preferably, the material flow path tapers from the inlet end to the outlet end.
The utility model discloses for prior art gain following technological effect:
1. through setting up the surge bin in conveyor belt top, make the material can pile up in conveyor belt top, detect the material height in the surge bin through setting up the material level appearance, and make inverter motor adjust conveyor belt's speed's form according to the material height information that the material level appearance detected, make the material in the surge bin remain throughout at certain height range, thereby realize the impact of the material of the last equipment whereabouts of material buffering through in the surge bin to conveyor belt, guarantee simultaneously from the material height of material export outflow all the time with the high phase-match of material export, thereby guarantee the accuracy of weighing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic view of a continuous weighing apparatus;
wherein, 1, a belt scale; 2. a buffer bin; 3. a material level meter; 4. a conveyor belt; 5. a weighing unit; 6. adjusting the baffle; 7. a material baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a continuous weighing device to solve the problem that prior art exists, according to material altitude mixture control conveyor belt speed, make the material in the surge bin remain throughout at the certain limit, the material that falls through the last equipment of material buffering in the surge bin is to conveyor belt's impact, guarantees simultaneously from the material height of material export outflow all the time with the high phase-match of material export, thereby guarantees the accuracy of weighing.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the present embodiment provides a continuous weighing apparatus, which includes a belt scale 1, a surge bin 2, and a level meter 3 disposed on the surge bin 2.
The material level meter 3 can be a heavy hammer type, a capacitance type, a permanent magnet type ultrasonic type and other material level meters capable of realizing material height detection, and the installation position can be installed on the side wall of the buffer bin 2 or vertically installed above the materials in the buffer bin 2 according to the installation requirements of the actually selected material level meters. In the embodiment, an ultrasonic material level meter is preferred and is hung above the material in the buffer bin 2.
The belt scale 1 comprises a conveying belt 4, a variable frequency motor for driving the conveying belt 4 to move and a weighing unit 5. The belt weigher 1 is any belt weigher capable of realizing continuous transportation and weighing functions in the prior art, and a driving device is changed into a variable frequency motor on the basis of the belt weigher, so that the transportation speed of the conveying belt 4 can be adjusted more conveniently and accurately. According to the actually selected belt scale structure, the weighing unit 5 can be a weighing carrier roller or other weighing unit structures such as a weighing sensor.
The buffer bin 2 is located above the conveying belt 4, a material flow channel is arranged in the buffer bin 2, the outlet end of the material flow channel is close to the conveying surface of the conveying belt 4, a material outlet communicated with the outlet end of the material flow channel is formed in the buffer bin 2 along the bottom edge of the side wall, and materials sequentially flow through the material flow channel, the conveying belt 4, the material outlet and the weighing unit 5.
Wherein, material flow channel's exit end and conveyor belt 4's distance can set up according to material granule size etc. can set up to the size that is less than the material granule to prevent that the material from flowing from all the other sides except that material export one side, also can set up to slightly to be greater than the size of the minimum granule of material, because the material granule size is inconsistent, and is crisscross, irregularly distributed when piling up in surge bin 2, the material also can not flow from all the other sides except that material export one side easily. The preferred 2 lateral wall bottom with surge bin sets up to 4 laminating with conveyor belt in this embodiment, that is to say that material flow channel's exit end and conveyor belt 4 laminating to the better material that prevents arbitrary particle diameter flows from removing all the other sides of material export one side.
Predetermine the interior material height threshold value of surge bin 2, the threshold value is the high minimum of material that needs to keep to a numerical range of the high maximum of material in surge bin 2, when material level appearance 3 detects the high maximum of material that is higher than predetermineeing in surge bin 2, control inverter motor improves the rotational speed, thereby make conveyor belt 4 drive the faster transport buffer bin 2 of material, thereby make discharge speed be greater than input speed in surge bin 2, and then make the high decline of material in surge bin 2. When the material level meter 3 detects that the material height is less than the minimum value of preset material height, control inverter motor underspin to the speed that makes conveyor belt 4 drive the material and transport out of surge bin 2 slows down, thereby makes discharge speed be less than feed rate in the surge bin 2, and then makes the material height in the surge bin 2 rise. Make the material in the surge bin 2 can remain throughout at predetermined height through above-mentioned setting to make the material in the surge bin 2 can play sufficient cushioning effect, guarantee simultaneously that sufficient material flows out from the material export, make its height all the time with the high phase-match of material export, thereby guarantee the accuracy of weighing.
Further, the material outlet still is provided with adjusting baffle 6 that is used for adjusting the material outlet height, can adjust the height of material outlet through adjusting baffle 6 according to actual conditions such as the size of material granule to adjust the material along with belt transport's thickness, adjusting baffle 6's control range is within weighing unit 5's accurate weighing range.
Adjusting baffle 6 can pass through the bolt fastening on 2 lateral walls of surge bin above the material export to through vertically changing mounted position, thereby change adjusting baffle 6 and the coincidence degree of material export, and then change the height of material export. Of course, the height of the material outlet can be adjusted automatically, in this embodiment, a hydraulic cylinder is preferably installed on the side wall of the surge bin 2, the output end of a piston rod of the hydraulic cylinder is connected with the adjusting baffle 6, and the hydraulic cylinder drives the adjusting baffle 6 to move longitudinally along the outer wall of the surge bin 2. Of course, the hydraulic cylinder may be replaced by any driving device capable of driving the adjusting baffle 6 to move linearly and adjusting the displacement range, such as an air cylinder and a linear motor.
Further, still be provided with vertical guide way on 2 outer walls of surge bin, be provided with on adjusting the baffle 6 with guide way complex guide block, when adjusting the height of material export through adjusting the baffle 6, through the guide way and the guide block of mutually supporting, make adjusting the baffle 6 only can reciprocate for the material export to the height of more accurate adjustment material export.
Further, the feed inlet department of surge bin 2 still is provided with material baffle 7, and material baffle 7 sets up the one side that is close to the material entering at material level appearance 3 for avoid the material to get into the interference of surge bin 2 internal time material level appearance 3. The material baffle 7 in this embodiment can also be replaced by a material guide chute, and the material is guided into the interior of the surge bin 2 through the material guide chute, so that the interference of the material entering the surge bin 2 to the material level meter 3 can be avoided.
Furthermore, the material flow channel is gradually reduced from the inlet end to the outlet end, so that materials are gradually gathered in the process of flowing from the inlet end to the outlet end, the bottom materials are more uniform, and the uniformity of the materials flowing out from the material outlet is further ensured.
It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A continuous weighing device, characterized in that: the device comprises a belt weigher, a buffer bin and a material level meter arranged on the buffer bin;
the belt scale comprises a conveying belt, a variable frequency motor for driving the conveying belt to move and a weighing unit;
the buffer bin is positioned above the conveying belt, a material flow channel is formed in the buffer bin, the outlet end of the material flow channel is close to the conveying surface of the conveying belt, a material outlet communicated with the outlet end of the material flow channel is formed in the buffer bin along the bottom edge of the side wall, and materials sequentially flow through the material flow channel, the conveying belt, the material outlet and the weighing unit;
presetting a material height threshold value in the buffer bin, controlling the variable frequency motor to increase the rotating speed when the material level instrument detects that the material height is higher than the threshold value, and controlling the variable frequency motor to decrease the rotating speed when the material level instrument detects that the material height is lower than the threshold value.
2. A continuous weighing apparatus according to claim 1, wherein: and the material outlet is also provided with an adjusting baffle plate for adjusting the height of the material outlet.
3. A continuous weighing apparatus according to claim 2, wherein: the buffer bin is characterized in that a hydraulic cylinder is further installed on the side wall of the buffer bin, the output end of a piston rod of the hydraulic cylinder is connected with the adjusting baffle, and the hydraulic cylinder drives the adjusting baffle to move longitudinally along the outer wall of the buffer bin.
4. A continuous weighing apparatus according to claim 3, wherein: the outer wall of the buffer bin is provided with a longitudinal guide groove, and the adjusting baffle is provided with a guide block matched with the guide groove.
5. A continuous weighing apparatus according to claim 1, wherein: the material level meter is arranged above materials in the buffer bin, a material baffle is further arranged at the feed inlet of the buffer bin, and the material baffle is arranged on one side, close to the material, of the material level meter.
6. A continuous weighing apparatus according to claim 1 or 5, wherein: the material level instrument is an ultrasonic material level instrument.
7. A continuous weighing apparatus according to claim 1, wherein: the bottom end of the side wall of the buffer bin is attached to the conveying belt.
8. A continuous weighing apparatus according to claim 1, wherein: the material flow channel is gradually reduced from the inlet end to the outlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021585749.4U CN212458581U (en) | 2020-08-03 | 2020-08-03 | Continuous weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021585749.4U CN212458581U (en) | 2020-08-03 | 2020-08-03 | Continuous weighing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212458581U true CN212458581U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021585749.4U Active CN212458581U (en) | 2020-08-03 | 2020-08-03 | Continuous weighing device |
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| Country | Link |
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| CN (1) | CN212458581U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457184A (en) * | 2021-07-26 | 2021-10-01 | 佛山市恒力泰机械有限公司 | Circulating type slurry pond fine powder recovery device and powder recovery pulping process |
| CN114136412A (en) * | 2021-11-29 | 2022-03-04 | 徐州圣能科技有限公司 | High-precision quantitative feeding belt scale |
| CN114249063A (en) * | 2021-12-11 | 2022-03-29 | 首钢京唐钢铁联合有限责任公司 | Stable belt conveyor discharging system and control method for stable belt conveyor discharging |
-
2020
- 2020-08-03 CN CN202021585749.4U patent/CN212458581U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457184A (en) * | 2021-07-26 | 2021-10-01 | 佛山市恒力泰机械有限公司 | Circulating type slurry pond fine powder recovery device and powder recovery pulping process |
| CN114136412A (en) * | 2021-11-29 | 2022-03-04 | 徐州圣能科技有限公司 | High-precision quantitative feeding belt scale |
| CN114136412B (en) * | 2021-11-29 | 2023-08-22 | 徐州圣能科技有限公司 | High-precision quantitative feeding belt scale |
| CN114249063A (en) * | 2021-12-11 | 2022-03-29 | 首钢京唐钢铁联合有限责任公司 | Stable belt conveyor discharging system and control method for stable belt conveyor discharging |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 1701-1728, 17th floor, block a, building 1, courtyard 10, Xueqing Road, Haidian District, Beijing 100089 (Dongsheng area) Patentee after: Beijing Construction Engineering Resource Recycling Co.,Ltd. Country or region after: China Address before: 1701-1728, 17th floor, block a, building 1, courtyard 10, Xueqing Road, Haidian District, Beijing 100089 (Dongsheng area) Patentee before: Beijing Construction Engineering Resources Recycling Co.,Ltd. Country or region before: China Address after: 1701-1728, 17th floor, block a, building 1, courtyard 10, Xueqing Road, Haidian District, Beijing 100089 (Dongsheng area) Patentee after: Beijing Construction Engineering Resources Recycling Co.,Ltd. Country or region after: China Address before: 100085 17th floor, block a, Xueqing Jiachuang building, building 1, yard 10, Xueqing Road, Haidian District, Beijing Patentee before: BCEG RESOURCES RECYCLING Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |