CN109046111B - Dynamic automatic feeding system - Google Patents
Dynamic automatic feeding system Download PDFInfo
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- CN109046111B CN109046111B CN201810842482.3A CN201810842482A CN109046111B CN 109046111 B CN109046111 B CN 109046111B CN 201810842482 A CN201810842482 A CN 201810842482A CN 109046111 B CN109046111 B CN 109046111B
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- ultrasonic
- material level
- timer
- stirring rod
- level device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2112—Level of material in a container or the position or shape of the upper surface of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
Abstract
The invention discloses a dynamic automatic feeding system which comprises a mixing kettle, a power device, a circulating heating device and a feeding device, wherein the mixing kettle is an inverted cone, a stirring device, a transverse screw, an ultrasonic material level device and a controller are arranged in the mixing kettle, the ultrasonic material level device is arranged on the inner side of a kettle cover and comprises a first stirring rod and a second stirring rod which are axially symmetrical, the first stirring rod and the second stirring rod are connected with the transverse screw through an auxiliary transmission box, the power device is electrically connected with the transverse screw, the power device drives the stirring device and the transverse screw to rotate, the ultrasonic material level device comprises an ultrasonic transmitting transducer and an ultrasonic receiving transducer, the ultrasonic material level device is electrically connected with a timer, the timer is electrically connected with the controller, and the controller is electrically connected with the automatic feeding device. The system can realize automatic feeding, improves the metering accuracy of a packaging machine in the next process, and can prevent empty materials and materials from overflowing the transverse screw.
Description
Technical Field
The invention relates to the technical field of chemical equipment, in particular to a dynamic automatic feeding system.
Background
The material reaches the mixing kettle through artifical or mechanical type to the material of ton bag, and the material of mixing kettle is packed to packagine machine again, often can appear under the feed bin empty or too much to be full out. When the common photoelectric material level device is detected, the common photoelectric material level device is triggered by mistake when touching the transverse screw rod of the mixing kettle, so that the position of the material cannot be judged.
During the material was beaten the mixing tank, the material was sticky, stirs and needs great power, consequently will ensure that the material level will be located the below of horizontal screw rod, as long as the action that just can stir, if the material level is higher than horizontal screw rod, horizontal screw rod just can't rotate so, and motor drive horizontal screw rod and stirring rod rotate, and stirring rod self rotation still simultaneously. At present, the material level of the material is controlled by opening a transparent window on a mixing kettle, observing by eyes, or completely discharging the material, then judging how long the material is fed to judge that the material is fed in place (tested in advance), for example, after the material is emptied, feeding at a fixed flow rate for 20 minutes indicates that the material is fed in place. In the prior art, the material level control precision is not high, and the material level control device is easy to be empty or too much in the working process.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a dynamic automatic feeding system.
The purpose of the invention is realized by the following technical scheme: a dynamic automatic feeding system comprises a mixing kettle, a power device, a circulating heating device and an automatic feeding device, wherein the power device is arranged above the mixing kettle, the circulating heating device is arranged outside the mixing kettle, the automatic feeding device is arranged on one side of the mixing kettle, the mixing kettle comprises a kettle body and a kettle cover, the mixing kettle is an inverted cone-shaped body, a stirring device, a transverse screw rod, an ultrasonic material level device, a controller and a timer are arranged in the mixing kettle,
the ultrasonic material level device, the controller and the timer are arranged on the inner side of the kettle cover, the stirring device comprises a first stirring rod and a second stirring rod which are axially symmetrical, the first stirring rod and the second stirring rod are connected with the transverse screw rod through an auxiliary transmission box, the power device is electrically connected with the transverse screw rod, the power device drives the stirring device to rotate with the transverse screw rod, the ultrasonic material level device comprises an ultrasonic transmitting transducer and an ultrasonic receiving transducer, the ultrasonic material level device is electrically connected with the timer, the timer is electrically connected with the controller, the controller is electrically connected with the automatic feeding device,
ultrasonic wave transmitting transducer sends ultrasonic signal, when ultrasonic signal met by the surveyed object, partial ultrasonic signal was received by ultrasonic wave receiving transducer after being surveyed the object reflection, the speed that the ultrasonic wave propagated is v, ultrasonic signal round-trip time is T, ultrasonic wave material level ware distance is D ═ vt/2 by the detection distance of surveying the object, ultrasonic wave material level ware is a setting value to the distance of being surveyed the object, D is the settlement threshold value of distance between ultrasonic wave material level ware and the surveyed object, when detection distance D is less than or equal to and sets for threshold value D, the time-keeping of time ware begins the timing, the timing time of time ware is T, judge detecting signal according to the timing time of time ware.
Preferably, the transverse screw is set below the ultrasonic material level device, namely when the transverse screw passes through the position below the ultrasonic material level device, the distance between the transverse screw and the ultrasonic material level device is smaller than a set threshold value D, in the rotation process of the transverse screw, a timer is triggered to time every time when the transverse screw passes through the position right below the ultrasonic material level device, and when the timer times T is equal to or smaller than 0.3s, the transverse screw passes through the position below the ultrasonic material level device; if the height of the material reaches a set threshold distance D, namely the distance between the upper surface of the material and the ultrasonic material level device is equal to the threshold distance D, the timer is triggered to start timing, and when the height of the material continues to rise to cause that the distance between the upper surface of the material and the ultrasonic material level device is smaller than the threshold distance D, the timer continuously counts time, when the timing time T exceeds 0.5s, the distance between the material and the ultrasonic material level device is judged to reach or exceed the threshold distance D, and at the moment, the controller controls the automatic feeding device to stop feeding.
Preferably, the power device comprises a motor, a motor control circuit and a speed reducer, the motor is arranged above the speed reducer and electrically connected with the motor control circuit, the speed reducer is electrically connected with the motor, and an output shaft of the speed reducer is connected with the stirring device.
Preferably, the stirring device is an axial flow type helical ribbon screw type stirrer, the first stirring rod and the second stirring rod are single screw type stirring rods, after the power device is started, the first stirring rod and the second stirring rod rotate at a constant speed, materials spirally rise along the inner wall surface of the kettle body to generate shearing force, and then converge towards a central recess of the kettle body to form up-down convection circulation.
Preferably, the length of first stirring rod is greater than the length of second stirring rod, first stirring rod is parallel with the cauldron body, and is close to the installation of the cauldron body, the second stirring rod is parallel with the cauldron body, and is close to the installation of the cauldron body.
Preferably, the cauldron body and kettle cover swing joint, the both sides of the cauldron body all are provided with the support, the bottom of mixing the cauldron is provided with the baiting valve.
Preferably, the ultrasonic material level indicator, the controller and the timer are all arranged on the inner end face of the kettle cover.
Preferably, a temperature sensor is arranged in the mixing kettle and electrically connected with the controller.
Preferably, the circulating heating device is a water bath jacket, the water bath jacket is sleeved outside the mixing kettle, and a heating water inlet and a heating water outlet are formed in the water bath jacket.
Preferably, the heating water inlet is arranged at the bottom of the water bath jacket, and the heating water outlet is arranged at the upper part of the water bath jacket.
The technical scheme of the invention has the advantages that: the system can realize automatic feeding, reduce labor intensity, improve the metering accuracy of a packaging machine in the next procedure, prevent empty materials and materials from overflowing the transverse screw rod in the working process, reduce the use faults of mechanical equipment and greatly prolong the service life of the mechanical equipment.
The system realizes intelligent operation, saves human resources, improves the production efficiency, reduces the production cost and improves the utilization rate of the stirring device.
Drawings
Fig. 1 is a schematic structural diagram of the dynamic automatic feeding system of the present invention.
Fig. 2 is a schematic structural diagram of the dynamic automatic feeding system of the present invention.
Detailed Description
Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. The embodiments are merely exemplary for applying the technical solutions of the present invention, and any technical solution formed by replacing or converting the equivalent thereof falls within the scope of the present invention claimed.
The invention discloses a dynamic automatic feeding system, which comprises a mixing kettle 1, a power device 2, a circulating heating device and a feeding device 3, wherein the power device is arranged above the mixing kettle, the circulating heating device is arranged outside the mixing kettle, and the automatic feeding device is arranged on one side of the mixing kettle, as shown in figure 1.
Mixing kettle 1 includes the cauldron body 11 and kettle cover 12, cauldron body 11 and kettle cover 12 swing joint, this setting is convenient for operating personnel to maintain and overhaul equipment. The both sides of the cauldron body all are provided with the support, the bottom of mixing the cauldron is provided with the baiting valve. Mix cauldron 1 and be the back taper body, this back taper shape set up can make the internal material of messenger's cauldron that the mixing cauldron can be better mix, and the material of misce bene can shift to next process through the baiting valve of cauldron body bottom after the mixed reaction finishes.
Be provided with agitating unit 13, horizontal screw 14, ultrasonic wave charge level indicator 15, controller, time-recorder in mixing kettle 1, ultrasonic wave charge level indicator sets up in the kettle cover inboardly, ultrasonic wave charge level indicator, controller, time-recorder set up in the kettle cover inboardly, specifically, in this technical scheme, ultrasonic wave charge level indicator, controller, time-recorder all set up on the interior terminal surface of kettle cover preferably, controller, time-recorder still can set up in other positions, and in this technical scheme, do not specifically prescribe a limit to the position of controller, time-recorder.
Agitating unit 13 includes two axial symmetry's first stirring rod 131 and second stirring rod 132, first stirring rod, second stirring rod all are connected with horizontal screw rod through the auxiliary gear case, power device and horizontal screw rod electric connection, power device drive agitating unit rotates with horizontal screw rod.
In order to meet the requirement of accurate blanking of a packing machine, a material is preferably kept at a certain material level, the material cannot exceed a transverse screw, the rotation of a mechanical screw is influenced, the material mixing degree is reduced, and the ultrasonic material level device is electrically connected with an automatic feeding device to realize linkage. As shown in fig. 2, the ultrasonic material level indicator 15 includes an ultrasonic transmitting transducer and an ultrasonic receiving transducer, the ultrasonic material level indicator is electrically connected to a timer, the timer is electrically connected to a controller, the controller is electrically connected to an automatic feeding device, the ultrasonic transmitting transducer sends an ultrasonic signal, and when the ultrasonic signal meets the detected object, part of the ultrasonic signal is received by the ultrasonic receiving transducer after being reflected by the detected object. The ultrasonic detection device comprises a ultrasonic level indicator, a timer, a signal acquisition module, a signal processing module and a signal processing module, wherein the ultrasonic propagation speed is v, the round-trip time of an ultrasonic signal is T, the detection distance of the ultrasonic level indicator from a detected object is D-vt/2, the distance from the ultrasonic level indicator to the detected object is a set value, D is a set threshold value of the distance between the ultrasonic level indicator and the detected object, when the detection distance D is smaller than or equal to the set threshold value D, the timer starts to time, the timing time of the timer is T, and the detection signal is judged according to the timing.
The transverse screw is arranged below the ultrasonic material level device, namely when the transverse screw passes through the lower part of the ultrasonic material level device, the distance between the transverse screw and the ultrasonic material level device is smaller than a set threshold value D, and in the rotating process of the transverse screw, the timer is triggered to time every time when the transverse screw passes through the right lower part of the ultrasonic material level device, but because the width of the transverse screw is limited, the time T for continuously triggering the timer at one time is also limited and is 0.3s, namely when the timer is 0.3s, the transverse screw is judged to pass through the lower part of the ultrasonic material level device. If the height of the material reaches a set threshold distance D, namely the distance between the upper surface of the material and the ultrasonic material level device is equal to the threshold distance D, the timer is triggered to start timing, the timing is continued when the height of the material continues to rise to cause the distance between the upper surface of the material and the ultrasonic material level device to be smaller than the threshold distance D, and the controller controls the automatic feeding device to stop feeding when the timing time T exceeds 0.5s and the distance between the material and the ultrasonic material level device reaches or exceeds the threshold distance D.
Setting the position and the detection distance of the ultrasonic sensor, specifically, setting the upper limit position of the material to be lower than the transverse screw rod, setting the material to be lower than the transverse screw rod by a certain distance, such as the height of 10cm, wherein the distance from the position to the ultrasonic sensor is a threshold distance D, sensing by the ultrasonic sensor when the position of the material reaches a target position, and then stopping feeding; then, the transverse screw rod can also enable the ultrasonic sensor to sense signals in the rotating process, so that interference items of the transverse screw rod are discharged, the transverse screw rod can enable the ultrasonic sensor to sense the signals twice when rotating for one circle, two walls are arranged when the transverse screw rod rotates, and the transverse screw rod can pass through the ultrasonic sensor twice when rotating for one circle. The interference of the transverse screw is discharged in a time length mode, the width of the transverse screw is limited, the time of the transverse screw passing through the ultrasonic sensor is limited, and the material position reaches a target position and can be detected by the ultrasonic sensor all the time, so that the signal generated by the rotation of the transverse screw is indicated when the signal is detected only in 0.3 second, and the material is required to stop feeding when the signal is detected in more than 0.5 second.
The power device 2 comprises a motor 21, a motor control circuit and a speed reducer, wherein the motor 21 is arranged above the speed reducer, the motor is electrically connected with the motor control circuit, the speed reducer is electrically connected with the motor, and an output shaft of the speed reducer is connected with a stirring device.
A temperature sensor is arranged in the mixing kettle and electrically connected with the controller. The circulating heating device is a water bath jacket which is sleeved outside the mixing kettle, and a heating water inlet and a heating water outlet are formed in the water bath jacket. The heating water inlet is arranged at the bottom of the water bath jacket, and the heating water outlet is arranged at the upper part of the water bath jacket. The arrangement of the water bath jacket and the temperature sensor ensures that the temperature in the mixing kettle is kept stable in the stirring process.
As shown in fig. 1, the stirring device 13 is an axial flow type helical ribbon screw type stirrer, the first stirring rod 131 and the second stirring rod 132 are single screw type stirring rods, after the power device is started, the first stirring rod 131 and the second stirring rod 132 rotate at a constant speed, the materials spirally rise along the inner wall surface of the kettle body to generate shearing force, so that the viscous materials can be effectively sheared, the materials in the kettle body are uniformly mixed and then converge to a central recess of the kettle body, and the up-and-down convection circulation is formed. The length of first stirring rod 131 is greater than the length of second stirring rod 132, first stirring rod 131 is parallel with the cauldron body, and is close to the installation of the cauldron body, second stirring rod 132 is parallel with the cauldron body, and is close to the installation of the cauldron body.
The double-helix stirrer has a strong anti-adhesion effect and is suitable for mixing high-viscosity or powdery materials. The form and number of the ribbon are determined according to the geometry of the container and the height of the materials, and the ribbon stirrer is usually operated under laminar flow condition and is suitable for mixing liquid with high viscosity and pseudoplastic fluid.
When the helical ribbon screw type stirrer is used in a reaction kettle, the parameters are selected and shown in the table 1.
| Class of parameters | Parameter value |
| Suitable for reaction kettle volume (m3) | 0～50 |
| Speed range (r/min) | 1～50 |
| Maximum viscosity of material (Pa.s) | 1000 |
This simple structure, convenient operation can be better in the use more quickly will have the material stirring of certain viscosity even, have improved production efficiency and product quality, are fit for using widely in the industry.
The invention has various embodiments, and all technical solutions formed by adopting equivalent transformation or equivalent transformation are within the protection scope of the invention.
Claims (9)
1. A dynamic automatic feeding system is characterized in that: the system comprises a mixing kettle, a power device, a circulating heating device and an automatic feeding device, wherein the power device is arranged above the mixing kettle, the circulating heating device is arranged outside the mixing kettle, the automatic feeding device is arranged on one side of the mixing kettle, the mixing kettle comprises a kettle body and a kettle cover, the mixing kettle is an inverted cone-shaped body, a stirring device, a transverse screw rod, an ultrasonic material level device, a controller and a timer are arranged in the mixing kettle,
the ultrasonic material level device, the controller and the timer are arranged on the inner side of the kettle cover, the stirring device comprises a first stirring rod and a second stirring rod which are axially symmetrical, the first stirring rod and the second stirring rod are connected with a transverse screw rod through an auxiliary transmission box, the power device is electrically connected with the transverse screw rod, the power device drives the stirring device to rotate with the transverse screw rod, the ultrasonic material level device comprises an ultrasonic transmitting transducer and an ultrasonic receiving transducer, the ultrasonic material level device is electrically connected with the timer, the timer is electrically connected with the controller, the controller is electrically connected with an automatic feeding device, the ultrasonic transmitting transducer sends out an ultrasonic signal, when the ultrasonic signal meets a detected object, part of the ultrasonic signal is received by the ultrasonic receiving transducer after being reflected by the detected object, and the speed of ultrasonic propagation is v, the round-trip time of the ultrasonic signal is t, the detection distance D between the ultrasonic material level device and the detected object is vt/2, the distance between the ultrasonic material level device and the detected object is a set value, D is a set threshold value of the distance between the ultrasonic material level device and the detected object, when the detection distance D is less than or equal to the set threshold value D, the timer starts to time, the timing time of the timer is T, the detection signal is judged according to the timing time of the timer, the horizontal screw rod is arranged below the ultrasonic material level device, namely, when the transverse screw passes below the ultrasonic material level device, the distance between the transverse screw and the ultrasonic material level device is less than a set threshold value D, triggering a timer to time every time when the ultrasonic material level device passes below the ultrasonic material level device, and judging that the transverse screw passes below the ultrasonic material level device when the time T counted by the timer is equal to or less than 0.3 s; if the height of the material reaches a set threshold distance D, namely the distance between the upper surface of the material and the ultrasonic material level device is equal to the threshold distance D, the timer is triggered to start timing, and when the height of the material continues to rise to cause that the distance between the upper surface of the material and the ultrasonic material level device is smaller than the threshold distance D, the timer continuously counts time, when the timing time T exceeds 0.5s, the distance between the material and the ultrasonic material level device is judged to reach or exceed the threshold distance D, and at the moment, the controller controls the automatic feeding device to stop feeding.
2. A dynamic automatic feed system according to claim 1, characterized in that: the power device comprises a motor, a motor control circuit and a speed reducer, the motor is arranged above the speed reducer and electrically connected with the motor control circuit, the speed reducer is electrically connected with the motor, and an output shaft of the speed reducer is connected with the stirring device.
3. A dynamic automatic feed system according to claim 1, characterized in that: the stirring device is an axial flow type helical ribbon screw type stirrer, the first stirring rod and the second stirring rod are single screw type stirring rods, after the power device is started, the first stirring rod and the second stirring rod rotate at a constant speed, materials spirally rise along the inner wall surface of the kettle body to generate shearing force, and then converge towards a central recess of the kettle body to form up-down convection circulation.
4. A dynamic automatic feed system according to claim 1, characterized in that: the length of first stirring rod is greater than the length of second stirring rod, first stirring rod is parallel with the cauldron body, and is close to the installation of the cauldron body, the second stirring rod is parallel with the cauldron body, and is close to the installation of the cauldron body.
5. A dynamic automatic feed system according to claim 1, characterized in that: the kettle body and the kettle cover are movably connected, supports are arranged on two sides of the kettle body, and a discharge valve is arranged at the bottom end of the mixing kettle.
6. A dynamic automatic feed system according to claim 1, characterized in that: the ultrasonic material level device, the controller and the timer are all arranged on the inner end face of the kettle cover.
7. A dynamic automatic feed system according to claim 1, characterized in that: a temperature sensor is arranged in the mixing kettle and electrically connected with the controller.
8. A dynamic automatic feed system according to claim 1, characterized in that: the circulating heating device is a water bath jacket which is sleeved outside the mixing kettle, and a heating water inlet and a heating water outlet are formed in the water bath jacket.
9. A dynamic automatic feed system according to claim 8, characterized in that: the heating water inlet is arranged at the bottom of the water bath jacket, and the heating water outlet is arranged at the upper part of the water bath jacket.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842482.3A CN109046111B (en) | 2018-07-27 | 2018-07-27 | Dynamic automatic feeding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842482.3A CN109046111B (en) | 2018-07-27 | 2018-07-27 | Dynamic automatic feeding system |
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| CN109046111A CN109046111A (en) | 2018-12-21 |
| CN109046111B true CN109046111B (en) | 2020-11-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821467B (en) * | 2019-03-29 | 2024-05-07 | 山东方明药业集团股份有限公司 | Automatic ointment feeding and mixing device |
| CN112058139B (en) * | 2020-08-03 | 2022-07-22 | 广东尚高科技有限公司 | Slurry dispersing machine |
| CN111942758A (en) * | 2020-08-20 | 2020-11-17 | 清远市科博环保技术有限公司 | Garbage transfer bin with intelligent monitoring function |
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| CN201404803Y (en) * | 2009-05-21 | 2010-02-17 | 浙江天女集团制漆有限公司 | Automatic control device for paint producing reaction kettle |
| CN203061086U (en) * | 2013-01-10 | 2013-07-17 | 南京高正农用化工有限公司 | Twin-screw mixer with function of automatically monitoring material level |
| CN205042439U (en) * | 2015-09-18 | 2016-02-24 | 丹阳市助剂化工厂有限公司 | Device of esterifying |
| WO2018073351A1 (en) * | 2016-10-20 | 2018-04-26 | Giuseppe Eugenio Ferrari | Apparatus for cooking seeds, such as cereals, legumes or the like |
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2018
- 2018-07-27 CN CN201810842482.3A patent/CN109046111B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201404803Y (en) * | 2009-05-21 | 2010-02-17 | 浙江天女集团制漆有限公司 | Automatic control device for paint producing reaction kettle |
| CN203061086U (en) * | 2013-01-10 | 2013-07-17 | 南京高正农用化工有限公司 | Twin-screw mixer with function of automatically monitoring material level |
| CN205042439U (en) * | 2015-09-18 | 2016-02-24 | 丹阳市助剂化工厂有限公司 | Device of esterifying |
| WO2018073351A1 (en) * | 2016-10-20 | 2018-04-26 | Giuseppe Eugenio Ferrari | Apparatus for cooking seeds, such as cereals, legumes or the like |
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| CN109046111A (en) | 2018-12-21 |
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