CN105091996A - Automatic weighing apparatus and method for fungus drying experiment oven - Google Patents
Automatic weighing apparatus and method for fungus drying experiment oven Download PDFInfo
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- CN105091996A CN105091996A CN201510529760.6A CN201510529760A CN105091996A CN 105091996 A CN105091996 A CN 105091996A CN 201510529760 A CN201510529760 A CN 201510529760A CN 105091996 A CN105091996 A CN 105091996A
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Abstract
The invention provides an automatic weighing apparatus and a method for a fungus drying experiment oven. A conventional fungus drying experiment oven is not provided with a weighing apparatus for online weighing during a drying process and throughout the whole drying process, people could only rely on experience. The automatic weighing apparatus for fungus drying experiment oven provided in the invention comprises an oven body (5); the inner part of the oven body is provided with a heat insulation layer (3) and a heat recycling component (4); the oven body is further provided with an air vent (1) and an access door (2); the inner part of the oven body is further provided with a rotation wheel type driving motor (7) and a weighing body (6). The weighing body is electrically connected with a controller through a bridge type resistance signal acquisition circuit and a signal amplifying circuit. The controller is electrically connected to a display controller, a temperature sensor inside the drying oven, an overweight alarming device, an over-temperature alarming device, and a drying completion alarming device. The oven body is further provided with a centrifugal fan (8). The invention is applied as an automatic weighing apparatus and a method for a fungus drying experiment oven.
Description
technical field:
the present invention relates to a kind of mushroom drying test box automatic weighing device and Weighing method.
background technology:
the baking test case of traditional mushroom not weigh (i.e. online weighing) device in drying baker drying course, the process of drying is completely by experience, judge that the mushroom end mark of finally drying is exactly to be taken out by sample every 30 minutes to weigh, the scope of weighing for twice is not more than the theoretical value of expectation, namely thinks that drying completes.
summary of the invention:
the object of this invention is to provide a kind of mushroom drying test box automatic weighing device and Weighing method.
above-mentioned object is realized by following technical scheme:
a kind of mushroom drying test box automatic weighing device, its composition comprises: casing, in described casing, there is heat-insulation layer, in described casing, also there is heat recovery assembly, described casing also have air port and access door, there is in described casing runner drive motor, there is in described casing title body, described title body is by bridge-type resistance signal Acquisition Circuit, signal amplification circuit is electrically connected with controller, described controller is also electrically connected with display controller, temperature sensor in drying box and overweight, overtemperature, dry and terminate alarm, described casing also has centrifugal blower.
described mushroom drying test box automatic weighing device, the formation of described heat-insulation layer is glass fibre, the composition of described heat recovery assembly comprises air-air heat exchanger core, described runner drive motor drives the dry thing holding tray in casing to rotate, and described title body is the LOAD CELLS being installed at drying box inside.
the Weighing method of described mushroom drying test box automatic weighing device, the metering circuit that described LOAD CELLS is made up of resistance strain gage and the sensor that elastic sensing element combines; Utilize resistance strain effect, when elastic sensing element is under pressure effect, generation is strained, the resistance strain gage being pasted onto surface also can produce strain, show as the change of resistance value, namely the change that elastomeric like this distortion is converted into resistance strain gage resistance has reacted the size of strain (or stress) by the change of measuring resistance, various mechanical quantity is converted to the mechanical structure type transducer of electric signal; Described method of operating is first by drying test box preheating, and baking temperature and dry forward and backward weight are set by display controller, drying test box is put into by needing dry article, start working by starting switch, in time needing dry article to be dried to the weight of setting, drying box accepts control signal to be stopped drying and carrying out temperature-fall period according to temperature lowering curve.
beneficial effect of the present invention:
1. the present invention can meet experiment maximum temperature the requirement of experiment of 85 degree, can automatic calibration,
when the temperature of experimental box changes, weighing device is calibrated with temperature, guarantees the precision of weighing, and can weigh (i.e. online weighing), and terminate to the drying controlling drying box with the measurement result of weighing in drying baker drying course.
the present invention is owing to have employed heat recovery assembly, the hot and humid air (air draft) of discharging in drying box is first drained after heat exchanger core again, the new wind of environment first sends into drying box again through heat exchanger core, these two strands of air carry out exchange heat in heat exchanger core inside, because two strands of air are completely isolated, the moisture of air draft can not be mixed into new wind, after new wind absorbs the heat of air draft, temperature can significantly rise and water capacity can not change, air draft with new wind exchange heat after produce a large amount of condensate water, temperature also can decline, be discharged to subsequently in outdoor environment, because new wind temperature after heat interchange can significantly raise, significantly can reduce and new wind is heated to the temperature required energy consumption of drying box.
the present invention, owing to have employed drive motor, can make dry thing be heated in dry run and uniform drying.
the present invention is owing to have employed display controller, it is a kind of real-time measurement weight of material and automatically sends the intelligent instrument of control signal according to weight, this display controller is primarily of signals collecting and display and control two parts composition, wherein signals collecting part is used for collection, conveying objects weight information, display control section then mainly shows weight data, and exports corresponding state control signal.Display controller not only requires to have overweight Presentation Function, has more overweight warning and controlling functions, can automatically protect by teaching display stand; Export a 24V d. c. voltage signal after its setting weight and carry out pilot relay, its warning output has 4 kinds of settings: 1, upper limit alarm; 2, lower limit is reported to the police; 3, bound is reported to the police; 4, report to the police in the middle of bound.
accompanying drawing illustrates:
accompanying drawing 1 is mushroom drying test box automatic weighing device composition diagram of the present invention.
accompanying drawing 2 is LOAD CELLS of the present invention and metering circuit composition diagram.
accompanying drawing 3 is mushroom drying test box automatic weighing device process flow diagrams of the present invention.
accompanying drawing 4 is mushroom drying test box automatic weighing device front elevations of the present invention.
accompanying drawing 5 is mushroom drying test box automatic weighing device rear views of the present invention.
accompanying drawing 6 is mushroom drying test box automatic weighing device vertical views of the present invention.
accompanying drawing 7 is mushroom drying test box automatic weighing device side views of the present invention.
accompanying drawing 8 is alert process control charts of controller of the present invention.
accompanying drawing 9 is amplifier principle figure of the present invention.
embodiment:
embodiment 1:
a kind of mushroom drying test box automatic weighing device, its composition comprises: casing 5, there is in described casing heat-insulation layer 3, in described casing, also there is heat recovery assembly 4, described casing also have air port 1 and access door 2, there is in described casing runner drive motor 7, have in described casing and claim body 5, described title body is by bridge-type resistance signal Acquisition Circuit, signal amplification circuit is electrically connected with controller, described controller is also electrically connected with display controller, temperature sensor in drying box and overweight, overtemperature, dry and terminate alarm, described casing also has centrifugal blower 8.
embodiment 2:
mushroom drying test box automatic weighing device according to embodiment 1, the formation of described heat-insulation layer is glass fibre, the composition of described heat recovery assembly comprises air-air heat exchanger core, described runner drive motor drives the dry thing holding tray in casing to rotate, and described title body is the LOAD CELLS being installed at drying box inside.
embodiment 3:
the method of operating of the mushroom drying test box automatic weighing device according to embodiment 1 or 2, the metering circuit that described LOAD CELLS is made up of resistance strain gage and the sensor that elastic sensing element combines; Utilize resistance strain effect, when elastic sensing element is under pressure effect, generation is strained, the resistance strain gage being pasted onto surface also can produce strain, show as the change of resistance value, namely the change that elastomeric like this distortion is converted into resistance strain gage resistance has reacted the size of strain (or stress) by the change of measuring resistance, various mechanical quantity is converted to the mechanical structure type transducer of electric signal; Described method of operating is first by drying test box preheating, and baking temperature and dry forward and backward weight are set by display controller, drying test box is put into by needing dry article, start working by starting switch, in time needing dry article to be dried to the weight of setting, drying box accepts control signal to be stopped drying and carrying out temperature-fall period according to temperature lowering curve.
embodiment 4:
mushroom drying test box automatic weighing device according to embodiment 1 or 2, weighing described in it
sensor, the sensor that this part adopts the metering circuit of resistance strain gage composition and elastic sensing element to combine, utilize resistance strain effect, when elastic sensing element is under pressure effect, generation strained, the resistance strain gage being pasted onto surface also can produce strain, shows as the change of resistance value, in accompanying drawing 21,2,3,4 is four resistance strain gages, and R1, R2, R3, R4 detect resistance.
embodiment 5:
mushroom drying test box automatic weighing device according to embodiment 1 or 2, the voltage signal of the amplification described in it enters controller, calculate, computation process is using the actual temperature in drying box as calibration, controller is the single-chip microcomputer of stm32 series, according to the temperature of drying and final weight requirement, export control signal, terminate dry run.
embodiment 6:
mushroom drying test box automatic weighing device according to embodiment 1 or 2, the warning described in it,
overload alarm, mushroom drying test box automatic weighing device has certain scope of weighing, and when exceeding the maximal value of weighing, sends overload alarm; Overtemperature alarm, when arranging the bake out temperature of drying baker, during more than 85 degree, sends overtemperature alarm, if when the temperature that will dry is more than 85 degree, closes the power supply of mushroom drying test box automatic weighing device; Dry and terminate to report to the police, when weight is less than or equal to the final oven-dry weight of setting, sends and terminate to report to the police, and export control signal, drying baker accepts control signal to be stopped drying and carrying out temperature-fall period according to temperature lowering curve.
Claims (3)
1. a mushroom drying test box automatic weighing device, its composition comprises: casing, it is characterized in that: in described casing, there is heat-insulation layer, in described casing, also there is heat recovery assembly, described casing also have air port and access door, there is in described casing runner drive motor, there is in described casing title body, described title body is by bridge-type resistance signal Acquisition Circuit, signal amplification circuit is electrically connected with controller, described controller is also electrically connected with display controller, temperature sensor in drying box and overweight, overtemperature, dry and terminate alarm, described casing also has centrifugal blower.
2. mushroom drying test box automatic weighing device according to claim 1, it is characterized in that: the formation of described heat-insulation layer is glass fibre, the composition of described heat recovery assembly comprises air-air heat exchanger core, described runner drive motor drives the dry thing holding tray in casing to rotate, and described title body is the LOAD CELLS being installed at drying box inside.
3. utilize the mushroom drying test box automatic weighing device described in claim 1 or 2 to carry out a method of weighing, it is characterized in that: the metering circuit that described LOAD CELLS is made up of resistance strain gage and the sensor that elastic sensing element combines; Utilize resistance strain effect, when elastic sensing element is under pressure effect, generation is strained, the resistance strain gage being pasted onto surface also can produce strain, show as the change of resistance value, namely the change that elastomeric like this distortion is converted into resistance strain gage resistance has reacted the size of strain (or stress) by the change of measuring resistance, various mechanical quantity is converted to the mechanical structure type transducer of electric signal; Described method of operating is first by drying test box preheating, and baking temperature and dry forward and backward weight are set by display controller, drying test box is put into by needing dry article, start working by starting switch, in time needing dry article to be dried to the weight of setting, drying box accepts control signal to be stopped drying and carrying out temperature-fall period according to temperature lowering curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510529760.6A CN105091996A (en) | 2015-08-26 | 2015-08-26 | Automatic weighing apparatus and method for fungus drying experiment oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510529760.6A CN105091996A (en) | 2015-08-26 | 2015-08-26 | Automatic weighing apparatus and method for fungus drying experiment oven |
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| CN105091996A true CN105091996A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510529760.6A Pending CN105091996A (en) | 2015-08-26 | 2015-08-26 | Automatic weighing apparatus and method for fungus drying experiment oven |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2541840Y (en) * | 2002-01-09 | 2003-03-26 | 铜陵科星计算机技术有限公司 | Material moisture measurer |
| CN2570770Y (en) * | 2002-07-31 | 2003-09-03 | 任若明 | Fast moisture tester |
| JP2009092311A (en) * | 2007-10-09 | 2009-04-30 | Santo Dengyo:Kk | Drying drum |
| CN102155975A (en) * | 2010-12-08 | 2011-08-17 | 常熟市佳衡天平仪器有限公司 | Intelligent electronic balance |
| CN103438693A (en) * | 2013-08-30 | 2013-12-11 | 中国农业大学 | Automatic control system of gas jet impact drying machine |
| CN203857765U (en) * | 2014-05-28 | 2014-10-01 | 江苏大运发玻璃制品有限公司 | Material drying device |
| CN104329740A (en) * | 2014-10-24 | 2015-02-04 | 南京优能空调系统有限公司 | Dehumidifying air exchanging machine |
| CN204359630U (en) * | 2014-12-31 | 2015-05-27 | 长沙开元仪器股份有限公司 | A kind of drying box |
| CN204831507U (en) * | 2015-08-26 | 2015-12-02 | 黑龙江省科学院自动化研究所 | Fungus class drying test case automatic weighing device |
-
2015
- 2015-08-26 CN CN201510529760.6A patent/CN105091996A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2541840Y (en) * | 2002-01-09 | 2003-03-26 | 铜陵科星计算机技术有限公司 | Material moisture measurer |
| CN2570770Y (en) * | 2002-07-31 | 2003-09-03 | 任若明 | Fast moisture tester |
| JP2009092311A (en) * | 2007-10-09 | 2009-04-30 | Santo Dengyo:Kk | Drying drum |
| CN102155975A (en) * | 2010-12-08 | 2011-08-17 | 常熟市佳衡天平仪器有限公司 | Intelligent electronic balance |
| CN103438693A (en) * | 2013-08-30 | 2013-12-11 | 中国农业大学 | Automatic control system of gas jet impact drying machine |
| CN203857765U (en) * | 2014-05-28 | 2014-10-01 | 江苏大运发玻璃制品有限公司 | Material drying device |
| CN104329740A (en) * | 2014-10-24 | 2015-02-04 | 南京优能空调系统有限公司 | Dehumidifying air exchanging machine |
| CN204359630U (en) * | 2014-12-31 | 2015-05-27 | 长沙开元仪器股份有限公司 | A kind of drying box |
| CN204831507U (en) * | 2015-08-26 | 2015-12-02 | 黑龙江省科学院自动化研究所 | Fungus class drying test case automatic weighing device |
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Application publication date: 20151125 |