CN211168510U - High-precision flow scale based on soft conveying belt structure - Google Patents
High-precision flow scale based on soft conveying belt structure Download PDFInfo
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- CN211168510U CN211168510U CN201921228089.1U CN201921228089U CN211168510U CN 211168510 U CN211168510 U CN 211168510U CN 201921228089 U CN201921228089 U CN 201921228089U CN 211168510 U CN211168510 U CN 211168510U
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Abstract
A high-precision flow scale based on a soft conveying belt structure comprises a soft conveying belt, a conveying belt supporting platform and a weighing device; the conveying belt is formed by firmly splicing two different materials at two sides of the edge and the middle part of the edge, the two sides of the edge of the conveying belt are used for driving the whole conveying belt and the materials on the conveying belt to be conveyed forwards, the two sides of the conveying belt move synchronously, and the middle part of the conveying belt is made of soft materials; weighing area separating marks are arranged on two sides of the conveying belt; the distance between two adjacent separation marks is matched with the length of the weighing platform; the conveyor belt supporting platform comprises a weighing flat plate front part, a weighing flat plate part and a weighing flat plate rear part; in the weighing device, a weighing sensor is arranged below a weighing platform part; the position sensor is arranged at the beginning or the end of the weighing platform part and is used for detecting the separation mark fixed on the conveying belt. The utility model provides a higher high accuracy flow of precision is called based on soft conveyer belt structure.
Description
Technical Field
The utility model relates to a flow is called, especially a high accuracy developments flow is called based on soft conveyer belt.
Background
In the industries of tea processing, traditional Chinese medicinal materials, food, chemical industry, electromechanical industry and the like, the real-time flow of a material to be processed is very important data influencing the stable quality and the excellent quality of the processed material, and the high-precision flow is called as key equipment for measuring the flow of a raw material. Especially on an automated production line, all production processes are continuous, and the flow rate of the production line is a very important process parameter. The flow is often measured in motion, such as a conveyor belt, in the motion process, due to factors such as mechanical precision, belt tension and vibration, the real reflection of sensor data is seriously influenced, the sensor runs for a long time, the number of unstable factors is large, the accumulated error is uncontrollable, and particularly, the error is very large in the measurement of small flow, so that the practical value is not high.
The sensor position of the flow scale is below the moving conveying belt, so that the moving mechanism has great influence on the measurement of the sensor, or the static scale is adopted by some flow scales to replace the flow scales, so that the material conveying is discontinuous. The existing technical defects are as follows: the real-time flow scale has large and many influence factors on the measurement accuracy, is unstable in long-term operation, and has high requirements on the accuracy of a mechanical structure and the stability of a transmission part.
Disclosure of Invention
In order to overcome among the prior art real-time flow balance measurement accuracy influence factor big and many, long-term operation is unstable, and mechanical structure precision and transmission part stability require high not enough, the utility model provides a higher high accuracy flow balance based on soft conveyer belt structure of precision.
The utility model provides a technical scheme that its technical problem adopted is:
a high-precision flow scale based on a soft conveying belt structure comprises a soft conveying belt, a conveying belt supporting platform and a weighing device;
the conveying belt is formed by firmly splicing two different materials at two sides of the edge and the middle part of the edge, the two sides of the edge of the conveying belt are used for driving the whole conveying belt and the materials on the conveying belt to convey forwards, the two sides of the edge of the conveying belt are strictly synchronous in the forward conveying process, the two sides are forbidden to be staggered, and the middle part of the conveying belt is made of soft materials; weighing area separating marks are arranged on two sides of the conveying belt and fixed on the conveying belt, and the separating marks move along with the conveying belt; the distance between two adjacent separation marks is matched with the length of the weighing platform;
the conveying belt supporting plate comprises a weighing flat plate front part, a weighing flat plate part and a weighing flat plate rear part, the weighing flat plate front part is a front platform, the weighing flat plate rear part is a rear platform, and the front platform, the weighing flat plate part and the rear platform are in the same plane;
the weighing device comprises a position sensor and a weighing sensor, and the weighing sensor is arranged below the weighing platform part; the position sensor is arranged at the beginning end or the ending end of the weighing platform part and is used for detecting the separation mark fixed on the conveying belt. A position sensor detects the separation mark, which means that only one complete separation area completely enters the weighing platform, and the position sensor triggers in real time: weight and time of collection. The weight sensor can measure the weight in real time and provide a real-time data acquisition interface.
Further, the flow balance further comprises a material flow guide device, wherein the material flow guide device is a mechanism which is arranged at the feed inlet and guides materials distributed on the whole conveying belt to slowly flow and concentrate on the middle area of the conveying belt. May be in the form of baffles or other structures.
The flow scale also comprises a material separating device, wherein the material separating device is a device which is arranged at the tail end of the flow guide device and fixed on the rack and consists of a position sensor and the material separating device.
The position sensor detects the separation mark and provides a separation material signal; the material separating device separates the materials on the conveying belt after receiving the separating signal.
The material separating device can be a separating strip which is arranged between the conveying belt and the front flat plate, the conveying belt is shaken upwards after the separating signal is received, and the materials on the conveying belt are dispersed towards two sides, so that no materials are arranged above the separating strip.
Or the material separating device can be in a brush structure, and the material on the conveying belt is separated back and forth by the brush after the separating signal is received.
Or the material separating device can be an air blowing device, after receiving the separating signal, the material on the conveying belt is separated from the front and the back by air, and a cover is arranged to prevent the material from flying.
The technical conception of the utility model is as follows: the conveying belt of the dynamic flow scale is reformed into two different materials which are spliced, the edge parts of two sides of the conveying belt play the roles of fixing the conveying belt and transmitting the conveying belt, the middle part of the conveying belt is soft and is not stressed, the influence of the movement of the conveying belt on the weighing device is isolated, and the whole real weight of the material can be measured by the weighing device. The weighing device is static and is placed below the soft conveying belt, so that the weighing device is not influenced by movement, and the measurement precision is improved. By means of a real-time data acquisition technical means, data such as the weight of the material of the weighing platform, the acquisition time and the like are obtained, so that real-time flow data can be calculated, and the flow weighing function is realized.
The beneficial effects of the utility model are that: the weighing device is still, and the weighing sensor and the conveyer belt movement influence factors are completely isolated; the flow balance has the advantages that the requirement on the assembly precision of the mechanical structure is greatly reduced, and the cost can be effectively reduced. The measuring precision of the dynamic flow scale is greatly improved by combining the near-sighted static weighing and real-time data acquisition of the moving materials, and the high-precision measurement from very small flow to very large flow is realized.
Drawings
Fig. 1 is a schematic diagram of a high-precision dynamic flow scale based on a soft conveying belt.
Fig. 2 is a top view of fig. 1.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, a high-precision dynamic flow scale based on a soft conveying belt comprises the soft conveying belt, a conveying belt supporting platform, a weighing device, a material flow guide device and a material separation device.
The soft conveying belt is formed by firmly splicing two different materials at two sides and the middle part of the edge. The two sides of the edge of the conveying belt are made of a certain elastic and slightly hard material, and the elastic and slightly hard material is used for driving the whole conveying belt and ensuring the synchronous movement of the two sides of the conveying belt and the forward conveying of the material on the conveying belt; the middle part of the conveying belt is made of soft materials, does not bear the weight of materials, and only plays a role in conveying the materials to move forwards; weighing area separating marks are arranged on two sides of the conveying belt and fixed on the conveying belt, and the separating marks move along with the conveying belt; the distance between two adjacent separating marks is equal to (may be slightly larger or smaller than) the length of the weighing platform.
The conveying belt supporting platform consists of three parts. The first part is a front platform, consisting of a rigid flat plate, which is separate from the second part weighing platform. The second part is a weighing device, a flat plate is rigidly fixed on the second part, a weighing sensor is arranged below the flat plate, the flat plate of the second part is free in the vertical direction, and the weight of the materials placed on the flat plate can be measured by the sensor. The third part is a rear platform and consists of a rigid flat plate, and the materials enter the platform and move out of the flow scale, so that the materials are separated from the second part.
Furthermore, the weighing device consists of a position sensor, a weighing flat plate and a weighing sensor. The position sensor detects the separation mark and provides when to collect weight data (collecting weight and collecting time); the weighing sensors measure the weight of the material on the weighing flat plate, the weighing sensors need to provide a real-time data acquisition interface, the acquisition frequency is set according to the application scene requirements of the flow scale, and the number of the weighing sensors can be determined according to the requirements.
The material guiding device is arranged at the feeding hole and guides materials distributed on the whole conveying belt to be slowly guided and concentrated in the middle area of the conveying belt.
The material separating device is a device which is arranged at the tail end of the flow guide device and fixed on the rack, and comprises a position sensor and a material separating device. The position sensor detects the separation mark and provides a material separation time; the material separating device is used for separating materials of two adjacent weighing areas. The material separating device can be a separating strip which is arranged between the conveying belt and the front flat plate, the separating strip shakes the conveying belt upwards after receiving the separating moment, and the materials on the conveying belt are dispersed to two sides, so that no materials exist above the separating strip; the structure of the device can also be a brush arranged on the conveyer belt, and the brush can separate materials on the conveyer belt after receiving the separation signal; the structure of the device can also be an air blowing device, and the materials are separated on the conveying belt by air blowing after the separation signal is received.
In the embodiment, the mechanical structure ensures that the raw materials to be weighed can be continuously guided to the middle area of the conveying belt; the areas marked by the two separation marks are weighing areas, and materials cannot exist between two adjacent weighing areas, namely the materials in the two adjacent weighing areas are separated and are stacked discontinuously; and the position sensor fixed at the beginning end or the ending end of the weighing platform detects the separation mark fixed on the conveying belt, triggers a data acquisition signal and acquires the weight and the time. The distance between the two separation marks is equal to the length of the weighing platform, so that when weight is collected, weighed raw materials are completely moved out of the weighing platform, and the raw materials to be weighed completely enter the weighing platform. The real-time data acquisition refers to recording the current acquisition weight and the current acquisition interval time, and the current acquisition weight/current acquisition interval time is called the real-time flow. The total weight of conveyed materials is obtained by accumulating the current collection weight through software, the total working time of the flow scale is obtained by accumulating the current collection interval time, and if the length of an accumulation window selects the time of one circle of the running of the conveying belt, the real-time average flow of the single circle of the flow scale is obtained, namely: the total weight of a single circle of raw materials/total working time of the single circle is called the real-time average flow of the single circle.
The high-precision dynamic flow scale structure based on the soft conveying belt of the embodiment is shown in the following figure 1 and comprises a driving motor 7, a driving wheel 14, a middle part 3 and two side parts 4 of the soft conveying belt, a material flow guide device 1, a material separation device 2 and a front platform 8, wherein the weighing device comprises a weighing platform 12, a position sensor 10, a weighing sensor 11 and a rear platform 13. Weighing area separating marks 5 are evenly arranged on the soft conveyor belt 4. A position sensor 9 is fixed on the material separating device 2. And a human-computer interface 6 for real-time data acquisition, real-time dynamic flow calculation, display and flow balance operation. The human-computer interface is used for collecting and displaying the flow scale information, and can also transmit data to a third party and collect data of the third party.
Claims (8)
1. The high-precision flow scale based on the soft conveying belt structure is characterized by comprising a soft conveying belt, a conveying belt supporting platform and a weighing device;
the conveying belt is formed by firmly splicing two different materials at two sides of the edge and the middle part of the edge, the two sides of the edge of the conveying belt are used for driving the whole conveying belt and the materials on the conveying belt to be conveyed forwards, the two sides of the conveying belt move synchronously, and the middle part of the conveying belt is made of soft materials; weighing area separating marks are arranged on two sides of the conveying belt and fixed on the conveying belt, and the separating marks move along with the conveying belt; the distance between two adjacent separation marks is matched with the length of the weighing platform;
the conveying belt supporting plate comprises a weighing flat plate front part, a weighing flat plate part and a weighing flat plate rear part, the weighing flat plate front part is a front platform, the weighing flat plate rear part is a rear platform, and the front platform, the weighing flat plate part and the rear platform are in the same plane;
the weighing device comprises a position sensor and a weighing sensor, and the weighing sensor is arranged below the weighing platform part; the position sensor is arranged at the beginning end or the ending end of the weighing platform part and is used for detecting the separation mark fixed on the conveying belt.
2. The high-precision flow scale based on the structure of the soft conveyer belt according to claim 1, further comprising a material guiding device, wherein the material guiding device is a mechanism which is installed at the feeding hole and guides the material distributed on the whole conveyer belt to be slowly guided and concentrated to the middle area of the conveyer belt.
3. The high precision flow scale based on the structure of the soft conveyer belt according to claim 1 or 2, wherein the distance between two adjacent separation marks is the same as the length of the weighing platform.
4. The high-precision flow scale based on the structure of the soft conveyer belt according to claim 1 or 2, characterized in that the flow scale further comprises a material separation device, wherein the material separation device is a device which is arranged at the tail end of the flow guide device and fixed on the machine frame, and consists of a position sensor and the material separation device.
5. The high precision flow scale based on the structure of the soft conveyer belt according to claim 4, wherein the position sensor detects the separation mark and provides a separation material signal; the material separating device separates the materials on the conveying belt after receiving the separating signal.
6. The high precision flow balance based on the structure of the soft conveying belt according to claim 5, characterized in that the material separation device is a separation strip installed between the conveying belt and the front flat plate.
7. A high accuracy flow scale based on the structure of a flexible conveyer belt according to claim 5, characterized in that said material separating means is a brush, and the brush is used to separate the material on the conveyer belt back and forth after receiving the separating signal.
8. A high accuracy flow meter based on a flexible conveyer belt structure as claimed in claim 5, wherein said material separating means is a blowing means for separating the material on the conveyer belt back and forth by gas after receiving the separation signal, and a cover for preventing the material from flying.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921228089.1U CN211168510U (en) | 2019-07-31 | 2019-07-31 | High-precision flow scale based on soft conveying belt structure |
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| CN201921228089.1U CN211168510U (en) | 2019-07-31 | 2019-07-31 | High-precision flow scale based on soft conveying belt structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110550384A (en) * | 2019-07-31 | 2019-12-10 | 浙江工业大学 | High-precision flow scale based on soft conveying belt structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110550384A (en) * | 2019-07-31 | 2019-12-10 | 浙江工业大学 | High-precision flow scale based on soft conveying belt structure |
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