CN212693036U - Electronic belt scale system - Google Patents

Abstract

The utility model relates to a technical field of pipe tobacco processing, more specifically relates to an electronic belt conveyor scale system, including controller, bearing roller, drive roll, driven voller, the belt encircles in bearing roller, drive roll and driven voller, and the bearing roller is located between drive roll and the driven voller, and belt tip top is equipped with limit buret: a laser range finder for measuring the height of the material is arranged above the belt; the driving roller is connected with a driving motor, a rotating shaft of the driving motor is provided with a rotary encoder for measuring the running speed of the belt, a plurality of groups of weighing sensors are arranged below the carrier roller, and the plurality of groups of weighing sensors are positioned at different positions of the carrier roller; the laser range finder, the weighing sensor and the rotary encoder are all connected to the controller. The utility model discloses not only can real time monitoring belt weigher's measurement accuracy, but also the fault position that the accurate judgement arouses by weighing sensor reduces troubleshooting time, reduces technology quality risk.

Description

Electronic belt scale system

Technical Field

The utility model relates to a technical field of pipe tobacco processing, more specifically relates to an electronic belt conveyor scale system.

Background

In the pipe tobacco production course of working, electronic belt conveyor scale system is indispensable, often includes the feeding machine, keeps in cabinet and electronic belt conveyor scale, wherein: the temporary storage cabinet is used as a buffer device between an upper production process and a lower production process, is generally positioned at the upper position of the electronic belt scale and stably provides materials for the electronic belt scale; the electronic belt scale is used for monitoring the flow and weight of the tobacco shreds conveyed in real time. However, the electronic belt scale lacks scientific and effective supervision means in the production and operation process, the maintenance and maintenance of the electronic belt scale are mainly focused on after-the-fact maintenance, the precautionary measures are only spot inspection before starting, the empty machine operates for a certain time in a single machine state, the accumulated value of the belt scale is checked, if the accumulated value is found to be abnormal, the adjustment and the calibration are only limited to the experience of operators and maintainers, the data in the operation process cannot be traced, the state of the belt scale cannot be detected, the targeted inspection and maintenance are carried out, and if the belt scale breaks down, the fault position cannot be quickly positioned, and the inspection process is long.

Chinese patent CN201410281120.3 discloses a state monitoring system of an electronic belt scale, which comprises an electronic belt scale, a monitoring device and a processing device: when the tobacco leaves pass through the electronic belt scale, the monitoring device monitors the instantaneous flow P of the tobacco leaves; if 2300kg/h is greater than P which is not less than 2000kg/h, the processing device sends out a fault signal; if P is larger than or equal to 2300kg/h, the processing device sends out a serious fault signal; although the scheme can effectively ensure the instantaneous flow of the materials passing through the electronic belt scale system and avoid the phenomenon that the materials are not completely processed due to excessive materials, the faults of the belt scale cannot be quickly positioned. Chinese patent CN201110253276.7 discloses an electronic belt scale and a measurement accuracy compensation method, which can calibrate the accuracy of the belt scale, but also cannot quickly locate a fault.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide an electronic belt conveyor scale system, but not only real time monitoring belt conveyor scale's measurement accuracy can judge the fault location moreover, and reducible troubleshooting time reduces technology quality risk.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides an electronic belt scale system, including controller, bearing roller, drive roll, driven voller, the belt encircles in bearing roller, drive roll and driven voller, and the bearing roller is located between drive roll and the driven voller, and belt tip top is equipped with the limit buret: a laser range finder for measuring the height of the material is arranged above the belt; the driving roller is connected with a driving motor, a rotating shaft of the driving motor is provided with a rotary encoder for measuring the running speed of the belt, a plurality of groups of weighing sensors are arranged below the carrier roller, and the plurality of groups of weighing sensors are positioned at different positions of the carrier roller; the laser range finder, the weighing sensor and the rotary encoder are all connected to the controller.

The utility model discloses an electronic belt scale system, laser range finder real-time supervision material height, rotary encoder real-time supervision belt scale functioning speed, calculate according to the data of monitoring and the attribute of material and obtain belt scale flow Q, weighing sensor real-time supervision top material's weight to calculate real-time belt scale flow Q1 according to the material weight of monitoring, compare real-time belt scale flow Q1 with belt scale flow Q and judge whether break down; when a fault occurs, the data monitored by the weighing sensors at different positions on the same weighing carrier roller are compared, and the data monitored by the weighing sensors at different weighing carrier rollers along the material conveying direction are compared, so that the fault occurring position can be judged. The utility model discloses not only can real time monitoring belt weigher's measurement accuracy, but also the fault position that the accurate judgement arouses by weighing sensor reduces troubleshooting time, reduces technology quality risk.

Further, the carrier rollers comprise a first transition carrier roller, a second transition carrier roller, a first weighing carrier roller and a second weighing carrier roller which are arranged in parallel, the first weighing carrier roller and the second weighing carrier roller are located between the first transition carrier roller and the second transition carrier roller, and the weighing sensors are installed on the first weighing carrier roller and the second weighing carrier roller.

Further, the weighing sensors comprise a first weighing sensor, a second weighing sensor, a third weighing sensor and a fourth weighing sensor, the first weighing sensor and the second weighing sensor are respectively installed at two end portions of the first weighing carrier roller, and the third weighing sensor and the fourth weighing sensor are respectively installed at two end portions of the second weighing carrier roller.

Furthermore, the limiting pipe is of a square structure, and the material falling into the belt by the limiting pipe is a cuboid.

Further, the limit pipe includes the body and is used for measuring the measurement light curtain of the real-time height of pipe tobacco, the measurement light curtain is installed in the body lateral part and is measured the light curtain and be connected with the controller.

Furthermore, the limiting tube is at least provided with a transparent side wall, the measuring light curtain is arranged on the transparent side wall, and the measuring light curtain outputs a current signal of 4 mA-20 mA according to the height of the cut tobacco in the limiting tube.

Further, the limiting tube is provided with a temporary storage cabinet, and a material distribution device is arranged above the temporary storage cabinet.

Further, the distributing device includes the cloth area and locates the altitude sensor at cloth area both ends, altitude sensor connects in the input of controller, the output of controller is connected with and is used for showing the display module of keeping in the interior material height of cabinet.

Furthermore, the height sensor is an ultrasonic sensor, and each end of the cloth belt is at least provided with two groups of ultrasonic sensors.

Further, the two groups of ultrasonic sensors comprise a high material level ultrasonic sensor and a low material level ultrasonic sensor.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an electronic belt conveyor scale system, but not only real time monitoring belt conveyor scale's measurement accuracy, but the fault location that causes by weighing sensor is judged to the while accuracy, reduces troubleshooting time, reduces technology quality risk.

Drawings

FIG. 1 is a schematic structural diagram I of an electronic belt scale system;

FIG. 2 is a schematic structural diagram II of an electronic belt scale system;

FIG. 3 is a schematic view of the construction of the limiting tube;

FIG. 4 is a schematic structural view of a material distribution device;

in the drawings: 1-a material distribution device; 11-a cloth belt; 12-a height sensor; 2-temporary storage cabinet; 3-electronic belt scale system; 31-a limiting tube; 32-a drive roll; 33-a driven roller; 34-a belt; 35-laser rangefinder; 36-a drive motor; 37-a first transition idler; 38-a second transition idler; 39-a first weighing idler; 310-a second weighing idler; 311-a first load cell; 312-a second load cell; 313-a third load cell; 314-a fourth load cell; 315-a tubular body; 316-measuring the light curtain.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Examples

The embodiment is an embodiment of an electronic belt scale system, the electronic belt scale system 3 includes a controller, a carrier roller, a driving roller 32, and a driven roller 33, a belt 34 is wound around the carrier roller, the driving roller 32, and the driven roller 33, the carrier roller is located between the driving roller 32 and the driven roller 33, and a limiting pipe 31 is located above an end of the belt 34: a laser range finder 35 for measuring the height of the material is arranged above the belt 34; the driving roller 32 is connected with a driving motor 36, a rotating shaft of the driving motor 36 is provided with a rotary encoder for measuring the running speed of the belt 34, and the laser range finder 35, the weighing sensor and the rotary encoder are all connected with the controller; a plurality of groups of weighing sensors are arranged below the carrier roller and are positioned at different positions of the carrier roller.

In the implementation of the embodiment, the laser range finder 35 monitors the height of a material in real time, the rotary encoder monitors the running speed of the belt scale in real time, the flow Q of the belt scale is calculated according to monitored data and the attribute of the material, the weighing sensor monitors the weight of the material above in real time, the flow Q1 of the belt scale is calculated according to the monitored weight of the material, and the flow Q1 of the belt scale is compared with the flow Q of the belt scale to judge whether a fault occurs; when a fault occurs, the data monitored by the weighing sensors at different positions on the same weighing carrier roller are compared, and the data monitored by the weighing sensors at different weighing carrier rollers along the material conveying direction are compared, so that the fault occurring position can be judged. Therefore, the utility model discloses not only can real time monitoring belt weigher's measurement accuracy, but also the fault position that accurately judges arouses by weighing sensor reduces troubleshooting time, reduces the technology quality risk simultaneously.

The idler comprises a first transition idler 37, a second transition idler 38, a first weighing idler 39 and a second weighing idler 310 which are arranged in parallel, the first weighing idler 39 and the second weighing idler 310 are located between the first transition idler 37 and the second transition idler 38, and the weighing sensors are mounted on the first weighing idler 39 and the second weighing idler 310. The belt weigher of this embodiment adopts two bearing roller belt weighers, nevertheless the utility model discloses a bearing roller is not limited to first bearing roller 39, the second of weighing two sets of bearing rollers of weighing of bearing roller 310, can weigh the quantity of bearing roller or the position of adjustment bearing roller of weighing according to the corresponding increase of application demand. In the normal production process, the material uniformly and continuously passes through the first weighing carrier roller 39 and the second weighing carrier roller 310, theoretically, the weight signals of the same material passing through the first weighing carrier roller 39 and the second weighing carrier roller 310 are consistent, and the condition that the weight signals are inconsistent can be generated only when a weighing sensor fails.

The weighing sensors comprise a first weighing sensor 311, a second weighing sensor 312, a third weighing sensor 313 and a fourth weighing sensor 314, the first weighing sensor 311 and the second weighing sensor 312 are respectively installed at two end parts of the first weighing carrier roller 39, and the third weighing sensor 313 and the fourth weighing sensor 314 are respectively installed at two end parts of the second weighing carrier roller 310. The positions of the first weighing sensor 311, the second weighing sensor 312, the third weighing sensor 313 and the fourth weighing sensor 314 are arranged in such a way that on one hand, the weight difference of different positions on the same weighing idler can be compared, on the other hand, the weight difference of different weighing idlers monitored along the material direction can be compared, and on the other hand, the fault occurrence positions can be accurately and quickly determined through transverse comparison and longitudinal comparison.

The limiting tube 31 is of a square structure, and the material falling into the belt 34 from the limiting tube 31 is approximately cuboid. The shape of the material falling from the limiting tube 31 is similar to that of the limiting tube 31, and the volume, weight and belt scale flow of the material can be calculated simply and quickly by setting the limiting tube 31 to be a square body in the embodiment. When the material is a cube, the correlation between the flow of the belt scale and the weight of the material and the running speed of the belt scale can be deduced from a calculation formula of the flow of the belt scale, and the running speed of the belt 34 is inversely proportional to the height of the material. It can be presumed that: when the monitored belt scale flow is abnormal, the height of the material is possibly abnormal, the weighing sensor is possibly failed, and if the height of the material is eliminated, the failure position can be accurately positioned according to data monitored by the weighing sensors at different positions.

The limiting tube 31 is provided with a temporary storage cabinet 2, and a distributing device 1 is arranged above the temporary storage cabinet. Specifically, distributing device 1 includes cloth area 11 and locates the altitude sensor 12 at cloth area 11 both ends, and altitude sensor 12 connects in the input of controller, and the output of controller is connected with and is used for showing the display module of the interior material height of cabinet 2 of keeping in. In prior art, the diffuse reflection photoelectric tube is adopted at cloth motor both ends to detect the material height, and the photoelectric tube is used for surveying the material height, and when two photoelectric tubes all detected the material, it had piled up required height to explain the material, and the cloth car was moved to the direction of keeping away from the stockpile this moment, stopped immediately when high material level detection photoelectric switch can not visit the material, continues the feeding at this new position, so relapse. The mode of adopting photoelectric tube to survey, if the material does not have at suitable high cloth in the cabinet, the material height of unable timely regulation photoelectric tube under the condition of having the material in the cabinet, and adjust again and have the difference with actual material under the material condition, need adjust many times sometimes and just can reach suitable height, on the other hand, when adjusting, maintainer need get into the internal regulation of cabinet, though there is the safeguard measure, but can not avoid the possibility of maloperation completely and lead to the emergence of incident.

The height sensor 12 is an ultrasonic sensor, and at least two groups of ultrasonic sensors are arranged at each end of the cloth belt 11. Wherein, two sets of ultrasonic sensor include a high material level ultrasonic sensor and a low material level ultrasonic sensor. The ultrasonic sensor is adopted to replace a photoelectric tube in the prior art to detect the height of the material, the analog quantity is used for outputting, and the real-time height H of the material can be displayed in real time to achieve the visualization of the height; in the feeding process, height value H is set through input, when H is larger than or equal to H, the material distributing vehicle is controlled to be far away from the material pile direction to operate, the novel material distributing device 1 is more convenient for adjusting the material height during material distribution, the novel material distributing device is convenient for adjusting the material height when the material exists in the cabinet, the reliability during material distribution is improved, the adjustment of operators is more convenient, the efficiency and the accuracy during material adjustment are improved, and the safety of the operators during adjustment is improved.

In this embodiment, the limiting tube 31 includes a tube 315 and a measuring light curtain 316 for measuring the real-time height of the tobacco shred, the measuring light curtain 316 is installed at the side of the tube 315 and the measuring light curtain 316 is connected to the controller, the material in the temporary storage cabinet 2 is transported to the limiting tube 31 through a lifting assembly composed of a lifting belt and a lifting belt motor, and the lifting belt motor is connected to the output end of the controller. In the prior art, the height of tobacco shreds is monitored by adopting an upper photoelectric sensor, a middle photoelectric sensor and a lower photoelectric sensor: when the lower sensor is empty, the limiting tube 31 feeds materials at a high speed; when the lower sensor is shielded, feeding at a medium speed; when the middle sensor shelters from, then low-speed feeding, stop the feeding when the high-order shelters from, this kind of controlling means and method can lead to the lifting belt to open frequently because how much of tobacco shred volume opens and stops, leads to equipment mechanical loss great. In this embodiment, the measuring light curtain 316 is used to replace the original sensor, and the original digital output signal is changed into the analog output signal. Specifically, the limiting tube 31 is at least provided with a transparent side wall, the measuring light curtain 316 is installed on the transparent side wall, and the measuring light curtain 316 outputs a current signal of 4 mA-20 mA according to the height of the tobacco shred in the limiting tube 31. During implementation, the tobacco shred height H in the limiting tube 31 is set, a set output analog signal A corresponding to the measuring light curtain 316 is calculated, the real-time tobacco shred height is measured, an analog signal A1 is output, A1 and A are compared, and when A1 is smaller than A, the lifting belt motor is controlled to operate at an accelerated speed by a coefficient X, and material supply is accelerated; when A1 is larger than A, controlling the lifting belt motor to run at a speed reduction coefficient X to slow down material supply; through this kind of control mode, guarantee that the pipe tobacco in the limit pipe 31 maintains at setting for height H, when guaranteeing steadily to give the downstream equipment feed, reduced the steady operation of upper reaches hoisting belt, reduce the number of times that frequently opens and stops, can reduce the loss of equipment machinery, reduce the garrulous of making of pipe tobacco. The embodiment performs fault detection and fault location according to the following steps:

s10, establishing a material model conveyed to the belt weigher by the limiting pipe 31, and calculating the flow Q of the belt weigher according to the following formula:

in the formula, L, H, D respectively represents the length, height and width of the material above the belt scale, H is measured by the laser range finder 35, rho is the material density, and S represents the speed of the belt scale measured by the rotary encoder; in the formula, H and S are in inverse proportion;

s20, calculating the flow Q1 of the real-time belt scale according to the following formula by using the weight G of the material measured by the weighing sensor:

s30, calculating the deviation ratio P of Q and Q1 according to the following formula, wherein P is [ -0.5%, 0.5% ]:

P＝[(Q-Q1)/Q]*100％

s40, when P is larger than 0.5% or smaller than-0.5%, outputting early warning, and checking whether the material height is proper: if the height of the material is not appropriate, adjusting the height of the material; if the material height is proper, indicating that the weighing sensor is in fault, and turning to the step S50;

s50, calculating the deviation C1 of G1 and G4 by using a weight signal G1 when the material passes through the first weighing sensor 311 and a weight signal G4 when the material passes through the fourth weighing sensor 314, wherein C1 is [ (G1-G4)/G1 ]. 100%, and C1 is [ -0.5% and 0.5% ]; the weight signal passing through the second load cell 312 is G2, the weight signal passing through the third load cell 313 is G3, and the deviation C2 between G2 and G3 is calculated, C2 ═ [ (G2-G3)/G2] × 100%, and C2 is [ -0.5%, 0.5% ];

s60, if the C1 exceeds the range of +/-0.5 percent and the C2 does not exceed the range, the first weighing sensor 311 or the fourth weighing sensor 314 is in fault; calculating the deviation C3 between G1 and G2, wherein C3 is [ (G1-G2)/G1] 100%, and C3 is [ -0.5% and 0.5% ]; the deviation C4 between G4 and G3, C4 ═ G4-G3/G4 ] 100%, C4 [ -0.5%, 0.5% ]; if C3 is out of range, first load cell 311 fails; if C4 is out of range, fourth load cell 314 fails.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The electronic belt scale system is characterized by comprising a controller, a carrier roller, a driving roller (32) and a driven roller (33), wherein a belt (34) surrounds the carrier roller, the driving roller (32) and the driven roller (33), the carrier roller is positioned between the driving roller (32) and the driven roller (33), and a limiting pipe (31) is arranged above the end part of the belt (34): a laser range finder (35) for measuring the height of the material is arranged above the belt (34); the driving roller (32) is connected with a driving motor (36), a rotating shaft of the driving motor (36) is provided with a rotary encoder for measuring the running speed of the belt (34), a plurality of groups of weighing sensors are arranged below the carrier roller, and the plurality of groups of weighing sensors are positioned at different positions of the carrier roller; the laser range finder (35), the weighing sensor and the rotary encoder are all connected to the controller.

2. The electronic belt scale system of claim 1, wherein the idlers include a first transition idler (37), a second transition idler (38), a first weighing idler (39), and a second weighing idler (310) arranged in parallel, the first weighing idler (39), and the second weighing idler (310) are located between the first transition idler (37), and the second transition idler (38), and the weighing sensors are mounted on the first weighing idler (39) and the second weighing idler (310).

3. The electronic belt scale system of claim 2, wherein the load cells comprise a first load cell (311), a second load cell (312), a third load cell (313) and a fourth load cell (314), the first load cell (311) and the second load cell (312) are respectively mounted at two ends of the first weighing idler (39), and the third load cell (313) and the fourth load cell (314) are respectively mounted at two ends of the second weighing idler (310).

4. An electronic belt scale system according to claim 3, wherein the limiting tube (31) is of a cuboid structure, and the material falling from the limiting tube (31) to the belt (34) is of a nearly cuboid shape.

5. The electronic belt scale system of any one of claims 1 to 4, wherein the limiting tube (31) comprises a tube body (315) and a measuring light curtain (316) for measuring the real-time height of the cut tobacco, the measuring light curtain (316) is mounted on the side of the tube body (315) and the measuring light curtain (316) is connected with the controller.

6. The electronic belt scale system of claim 5, wherein the limiting tube (31) is provided with at least one transparent side wall, the measuring light curtain (316) is installed on the transparent side wall, and the measuring light curtain (316) outputs a current signal of 4 mA-20 mA according to the height of tobacco shreds in the limiting tube (31).

7. The electronic belt scale system according to any one of claims 1 to 4, wherein a temporary storage cabinet (2) is arranged above the limiting tube (31), and a material distribution device (1) is arranged above the temporary storage cabinet.

8. The electronic belt scale system of claim 7, wherein the material distribution device (1) comprises a material distribution belt (11) and height sensors (12) arranged at two ends of the material distribution belt (11), the height sensors (12) are connected to an input end of the controller, and an output end of the controller is connected with a display module for displaying the height of the material in the temporary storage cabinet (2).

9. Electronic belt scale system according to claim 8, characterized in that the height sensor (12) is an ultrasonic sensor, and at least two sets of ultrasonic sensors are provided at each end of the cloth belt (11).

10. The electronic belt scale system of claim 9, wherein the two sets of ultrasonic sensors include a high level ultrasonic sensor and a low level ultrasonic sensor.

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