CN1754444A - Weigh for minim and continuous reduction of weight - Google Patents
Weigh for minim and continuous reduction of weight Download PDFInfo
- Publication number
- CN1754444A CN1754444A CNA2005100215625A CN200510021562A CN1754444A CN 1754444 A CN1754444 A CN 1754444A CN A2005100215625 A CNA2005100215625 A CN A2005100215625A CN 200510021562 A CN200510021562 A CN 200510021562A CN 1754444 A CN1754444 A CN 1754444A
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- feeding
- control circuit
- weight
- circuit
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- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses a microscale continuous weighing instruments, comprises: bunker used for containing powder addictive, control circuit, feeding generator, feeding device and weighing sensor. The bunker possesses a discharge door, the feeding generator drives the feeding device, the weighing sensor support the bunker and connects with the control circuit, the control circuit is connected with the drive circuit in the feeding generator; the weighing sensor, feeding generator and control circuit forms a backfeed loop; the weighing sensor proceeds the real-time detection of the addictive weight and outputs the data; the control circuit compares the reduction of the addictive and the target flow in unit time and adjusts the feeding generator speed according to the comparing result. By the real-time detection of the addictive weight by the weighing sensor and the real-time adjustment of the feeding generator speed by the control circuit, the accurate and homogeneous addition of the addictive is realized, and the weighing instrument can monitor the whole process.
Description
[technical field]
The present invention relates to food processing field, especially about a kind of automation equipment that is used for the powder additives interpolation.
[background technology]
In the food service industry, most of powders all need add various as food additives such as fortification, quality-improving, hyperchromic, synergy in major ingredient in making daily life before the edible food.The addition manner of existing additive has artificial interpolation and volumetric speed control formula to add, but there is following shortcoming respectively in these two kinds of addition manners: 1) the artificial error that exists on the additive capacity of adding, the positive displacement speed governing adds then that precision is not high, the addition fluctuation is big, so all can cause a large amount of defective products, even may cause that food additives exceed standard on the market, and then the health of harmful to human; 2) these two kinds of addition manners all can't be realized whole process supervision and quantitative management.
[summary of the invention]
The object of the present invention is to provide and a kind ofly can realize additive accurately, evenly add, and the weigh for minim and continuous reduction of weight of can real-time continuous adjusting.
The object of the present invention is achieved like this: this weigh for minim and continuous reduction of weight comprises the hopper that is used to hold powder additives, control circuit, feeding motor, drawing-in device and LOAD CELLS, this hopper has discharging opening, feeding motor transmission drawing-in device, LOAD CELLS supports this hopper and is connected with control circuit, control circuit is connected with the drive circuit of feeding motor, and this LOAD CELLS, feeding motor and control circuit constitute backfeed loop, LOAD CELLS detects the weight of additive in real time and exports this data, control circuit compares the reduction of unit interval inner additive weight and the target flow of additive, and regulates the rotating speed of feeding motor according to comparative result.
Described drawing-in device is the feeding spring, this feeding spring and the transmission of feeding motor direct connection, and the head end of this feeding spring places the discharging opening of hopper.
Described control circuit comprises main control unit, analog to digital conversion circuit and signal amplification circuit, the input of this signal amplification circuit of output termination of LOAD CELLS, the input of the output termination analog to digital conversion circuit of signal amplification circuit, the output termination main control unit of analog to digital conversion circuit.
Described main control unit comprises first single-chip microcomputer and the second singlechip of intercommunication mutually, the output termination second singlechip of analog to digital conversion circuit, and first single-chip microcomputer is connected with display unit and input block.
Described trace is weightless to claim further to comprise that stirring motor reaches and the agitating device of its interlock, and this agitating device places hopper.
Described control circuit is connected with the output of an optical coupling isolation circuit, and optical coupling isolation circuit receives the real-time traffic data of the major ingredient that sends with pulse mode, and control circuit is adjusted the target flow of additive according to the real-time traffic data of major ingredient.
Described control circuit also is connected with communication interface.
The flow formula of described feeding spring feeding additive is as follows: Q=0.06*3.14*r*k*n*t[(D2/2)
2-(D1/2)
2], wherein, Q represents flow, and r represents the density of powder additives, and n represents the rotating speed of feeding spring, and t represents the pitch of feeding spring, and k is a coefficient, and this coefficient is 1.6～1.8 during horizontal feed, and D2 represents the external diameter of feeding spring, D1 represents the internal diameter of feeding spring.
Compared with prior art, the present invention has following advantage: the weight of 1) measuring additive by LOAD CELLS in real time, and adjust the rotating speed of feeding motor in real time by control circuit, thereby can realize accurately and uniformly adding of additive, and should weightlessness claim to realize the whole process supervision that adds; 2) owing to adopt the feeding spring, additive can not adhered in each coil spring, make the additive that takes by weighing can not be subjected to the influence of the mobile property of additive, and then realized accurately weighing of additive.
[description of drawings]
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is an installation diagram of the present invention.
Fig. 3 is a circuit block diagram of the present invention.
Fig. 4 is an equipment scheme of installation of the present invention.
[specific embodiment]
Please in conjunction with consulting Fig. 1 to Fig. 4, weigh for minim and continuous reduction of weight of the present invention is used for food service industry, and it is used to carry out the accurate interpolation of powder additives.The weightless title of this trace comprises control circuit 1, stirring motor 2, agitating device 3, hopper 4, feeding motor 6 and drawing-in device 7.Stirring motor 2 transmission agitating devices 3, this agitating device 3 are used to solve the problem that powder additives is put up a bridge and knot encircles, and have broken arch action.Hopper 4 is used to hold powder additives to be added.Feeding motor 6 transmission drawing-in devices 7, drawing-in device 7 is used to carry powder additives.Control circuit 1 is used to coordinate and control the work of whole weightless title.
Agitating device 3 comprises power transmission shaft 31 and a plurality of shaft 32, and this power transmission shaft 32 links with the motor shaft of stirring motor 2, and shaft 32 is among the hopper 4 and with certain rule and is distributed on the power transmission shaft 31.Feeding motor 6 is a stepper motor, and drawing-in device 7 is the feeding spring, and this feeding spring 7 is positioned at the bottom of hopper 4, and with feeding motor 6 direct connection transmissions.Hopper 4 is provided with the host cavity 41 of accommodating powder additives, run through on the sidewall of this host cavity 41 and be provided with discharging opening 42, this discharging opening 42 is communicated with host cavity 41, the head end 71 of feeding spring 7 stretches into this discharging opening 42, and discharging opening 42 also is communicated with major ingredient container 9 by connecting bucket 8, and the rotation by this feeding spring 7 can make additive output to major ingredient container 9 from discharging opening 42.In addition, the supported underneath of this hopper 4 has LOAD CELLS 10, and this LOAD CELLS 10 is connected with control circuit 1, and it is used for the weight of real-time detecting material bucket additive, and this LOAD CELLS, feeding motor and control circuit constitute backfeed loop.The operation principle of this backfeed loop is: the weight of additive and export this weight data in the LOAD CELLS 10 real-time detecting material buckets, control circuit is controlled the rotating speed of feeding motor according to the reduction of unit interval inner additive weight.In the present embodiment, polluted in order to prevent additive, this feeding spring is generally made by non-toxic material or stainless steel material.
This control circuit comprises first single-chip microcomputer and the second singlechip of intercommunication mutually, this first single-chip microcomputer is connected with display unit, state indicating member and input block, in the present embodiment, this display unit comprises charactron and drive circuit thereof, the state indicating member comprises and is used to the LED light and the drive circuit thereof of indicating this weightlessness to claim duty, input block comprises keyboard and interface circuit thereof, and it is used for for operator's input parameter and control instruction.First, second single-chip microcomputer constitutes main control unit.
Second singlechip is connected with sound light alarming circuit, analog to digital conversion circuit, feeding motor drive circuit and memory.Sound light alarming circuit comprises the buzzer circuit that is used for onsite alarming and is used for the alarm relay circuit of Long-distance Control.The input of analog to digital conversion circuit is connected with the output of signal amplification circuit, and the input of signal amplification circuit is connected with the output of LOAD CELLS.The feeding motor drive circuit is connected with feeding motor, and it is in order to the rotating speed of control feeding motor.Memory is used for storage program and data.Second singlechip also is provided with communication interface, can realize this Long-distance Control by this communication interface.In addition, this second singlechip also is connected with the output of an optical coupling isolation circuit, the one input received pulse signal input of this optical coupling isolation circuit, the real-time traffic of major ingredient is input to second singlechip in the mode of pulse signal through optical coupling isolation circuit, thereby according to the variation of this major ingredient real-time traffic target flow of continuous adjustment additive automatically.In the present embodiment, first, second single-chip microcomputer, communication interface and other each circuit are powered by power circuit; First single-chip microcomputer is the AT89S51 single-chip microcomputer, and second singlechip is the AT89S52 single-chip microcomputer, and analog to digital conversion circuit is the AD7714 analog-digital converter, and memory is X5045EEPROM (the read-only memory access of multichannel electric erasable), and communication interface is the RS-232 communication interface.
When this weightlessness claims to use, should weightlessness claim to be installed on the bracing frame 11 and be connected with major ingredient container 9, powder additives is put into hopper 4, set target flow, adding proportion, alarming value is in interior various parameters up and down by connecting bucket 8.Power on the start after, the analogue value of weight of additive is amplified through signal amplification circuit in the hopper that LOAD CELLS is measured, signal after the amplification is converted to the data signal that single-chip microcomputer can be discerned by analog to digital conversion circuit, single-chip microcomputer compares the reduction (being actual flow) of unit interval inner additive with the target flow of setting, draw the rotating speed of feeding motor by mathematical operation, and drive the feeding spring rotated and took out corresponding weight from hopper additive by feeding motor.When feeding motor drives the feeding spring and rotates, because the feeding spring can not advance, screw type the advancing of the relative feeding spring of powder additives then, thus realize the conveying of additive.The computing formula of the additive delivery flow of this feeding spring is as follows:
Q=0.06*3.14*r*k*n*t[(D2/2)
2-(D1/2)
2] in this formula, Q represents the additive delivery flow, its unit is kilogram/hour, r represents the density of powder additives, and its unit is a ton/cubic meter, and n represents the rotating speed (being the rotating speed of feeding motor) of feeding spring, its unit is rev/min, and t represents the pitch of feeding spring, and its unit is centimetre, k is an empirical coefficient, the feeding coefficient was 1.6～1.8 when mean level was carried, and D2 represents the external diameter of feeding spring, and its unit is centimetre, D1 represents the internal diameter of feeding spring, and its unit is centimetre.
Claims (8)
1. weigh for minim and continuous reduction of weight, comprise the hopper that is used to hold powder additives, this hopper has discharging opening, it is characterized in that: also comprise control circuit, feeding motor, drawing-in device and LOAD CELLS, feeding motor transmission drawing-in device, LOAD CELLS supports this hopper and is connected with control circuit, control circuit is connected with the drive circuit of feeding motor, and this LOAD CELLS, feeding motor and control circuit constitute backfeed loop, LOAD CELLS detects the weight of additive in real time and exports this data, control circuit compares the reduction of unit interval inner additive weight and the target flow of additive, and regulates the rotating speed of feeding motor according to comparative result.
2. weigh for minim and continuous reduction of weight as claimed in claim 1 is characterized in that: described drawing-in device is the feeding spring, this feeding spring and the transmission of feeding motor direct connection, and the head end of this feeding spring places the discharging opening of hopper.
3. weigh for minim and continuous reduction of weight as claimed in claim 1, it is characterized in that: described control circuit comprises main control unit, analog to digital conversion circuit and signal amplification circuit, the input of this signal amplification circuit of output termination of LOAD CELLS, the input of the output termination analog to digital conversion circuit of signal amplification circuit, the output termination main control unit of analog to digital conversion circuit.
4. weigh for minim and continuous reduction of weight as claimed in claim 3, it is characterized in that: described main control unit comprises first single-chip microcomputer and the second singlechip of intercommunication mutually, the output termination second singlechip of analog to digital conversion circuit, first single-chip microcomputer is connected with display unit and input block.
5. weigh for minim and continuous reduction of weight as claimed in claim 1 is characterized in that: comprise that further stirring motor reaches and the agitating device of its interlock, this agitating device places hopper.
6. as any described weigh for minim and continuous reduction of weight among the claim 2-5, it is characterized in that: the flow formula of described feeding spring feeding additive is as follows:
Q=0.06*3.14*r*k*n*t[(D2/2)
2-(D1/2)
2], wherein, Q represents flow, and r represents the density of powder additives, and n represents the rotating speed of feeding spring, and t represents the pitch of feeding spring, and k is a coefficient, and this coefficient is 1.6～1.8 during horizontal feed, and D2 represents the external diameter of feeding spring, D1 represents the internal diameter of feeding spring.
7. as any described weigh for minim and continuous reduction of weight among the claim 1-5, it is characterized in that: described control circuit is connected with the output of an optical coupling isolation circuit, optical coupling isolation circuit receives the real-time traffic data of the major ingredient that sends with pulse mode, and control circuit is adjusted the target flow of additive according to the real-time traffic data of major ingredient.
8. as any described weigh for minim and continuous reduction of weight among the claim 1-5, it is characterized in that: described control circuit also is provided with the communication interface that is used to carry out Long-distance Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100215625A CN1754444A (en) | 2005-08-23 | 2005-08-23 | Weigh for minim and continuous reduction of weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100215625A CN1754444A (en) | 2005-08-23 | 2005-08-23 | Weigh for minim and continuous reduction of weight |
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| Publication Number | Publication Date |
|---|---|
| CN1754444A true CN1754444A (en) | 2006-04-05 |
Family
ID=36688207
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100215625A Pending CN1754444A (en) | 2005-08-23 | 2005-08-23 | Weigh for minim and continuous reduction of weight |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147282A (en) * | 2010-02-09 | 2011-08-10 | 常州珠峰称重设备有限公司 | Intelligent dynamic weightlessness scale |
| CN102861530A (en) * | 2011-07-06 | 2013-01-09 | 上海松耐机械制造有限公司 | Liquid continuous weightlessness type metering mixing device |
| CN103808370A (en) * | 2014-02-25 | 2014-05-21 | 太原理工大学 | Solid flow detection device for volume measurement method and using method |
| CN104807525A (en) * | 2015-03-20 | 2015-07-29 | 成都瑞途电子有限公司 | High-precision weightlessness scale |
| CN105415500A (en) * | 2015-11-26 | 2016-03-23 | 湖南五新隧道智能装备股份有限公司 | Accelerator speed regulation method for concrete gunniting vehicle and accelerator system |
| CN113093632A (en) * | 2021-05-06 | 2021-07-09 | 无锡灵鸽机械科技股份有限公司 | Novel weightless balance control system |
-
2005
- 2005-08-23 CN CNA2005100215625A patent/CN1754444A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147282A (en) * | 2010-02-09 | 2011-08-10 | 常州珠峰称重设备有限公司 | Intelligent dynamic weightlessness scale |
| CN102861530A (en) * | 2011-07-06 | 2013-01-09 | 上海松耐机械制造有限公司 | Liquid continuous weightlessness type metering mixing device |
| CN103808370A (en) * | 2014-02-25 | 2014-05-21 | 太原理工大学 | Solid flow detection device for volume measurement method and using method |
| CN103808370B (en) * | 2014-02-25 | 2017-09-26 | 太原理工大学 | The solid flow detection means and application method of a kind of volume metering method |
| CN104807525A (en) * | 2015-03-20 | 2015-07-29 | 成都瑞途电子有限公司 | High-precision weightlessness scale |
| CN104807525B (en) * | 2015-03-20 | 2017-09-15 | 成都瑞途电子有限公司 | A kind of high-precision Weightlessness balance |
| CN105415500A (en) * | 2015-11-26 | 2016-03-23 | 湖南五新隧道智能装备股份有限公司 | Accelerator speed regulation method for concrete gunniting vehicle and accelerator system |
| CN113093632A (en) * | 2021-05-06 | 2021-07-09 | 无锡灵鸽机械科技股份有限公司 | Novel weightless balance control system |
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