CN107998923B - High-low speed automatic batching device and batching method - Google Patents
High-low speed automatic batching device and batching method Download PDFInfo
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- CN107998923B CN107998923B CN201711393959.6A CN201711393959A CN107998923B CN 107998923 B CN107998923 B CN 107998923B CN 201711393959 A CN201711393959 A CN 201711393959A CN 107998923 B CN107998923 B CN 107998923B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 70
- 238000003756 stirring Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 26
- 230000009467 reduction Effects 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
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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
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
- B01F27/721—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle
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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
- B01F27/23—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis
- B01F27/232—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes
- B01F27/2322—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes with parallel axes
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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
- B01F35/22—Control or regulation
- B01F35/2201—Control or regulation characterised by the type of control technique used
- B01F35/2209—Controlling the mixing process as a whole, i.e. involving a complete monitoring and controlling of the mixing process during the whole mixing cycle
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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
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/882—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances
- B01F35/8821—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances involving controlling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of chemical industry automatic batching devices, in particular to a high-low speed automatic batching device and a batching method, wherein a feeding mechanism comprises a motor, a transmission mechanism, a stirring shaft, a first batching screw and/or a second batching screw which can be automatically clutched according to a difference value between a batching amount and a target value, an input end of the transmission mechanism is connected with the motor, and an output end of the transmission mechanism is connected with the first batching screw, the second batching screw and the stirring shaft; the first batching screw rod and the second batching screw rod are arranged in parallel and rotate in opposite directions, and the diameter of the second batching screw rod is larger than that of the first batching screw rod. The diameters of the first batching screw rod and the second batching screw rod are different, so that the batching machine is suitable for batching from tens of grams to tens of kilograms, and can be automatically switched among quick batching, low-speed batching and accurate batching; the motor is adopted as a power source to drive the first batching screw rod, the second batching screw rod and the stirring shaft simultaneously, so that the cost is saved, the structure is compact and reliable, the maintenance and the guarantee are convenient, and the failure rate is low.
Description
Technical Field
The invention relates to the technical field of chemical industry automatic batching devices, in particular to a high-low speed automatic batching device and a batching method.
Background
The automatic batching device is an indispensable equipment in plastics, chemical industry, food industry and the like, and has very wide application. In the production process of chemical products, the dosage of the same raw material in different formulas has a range of variation from tens of grams to tens of kilograms due to the variation relation of different formulas. The screw rod of the traditional automatic batching device is generally of a single size, and the batching precision of the condition of small dosage can not be met while the large-diameter screw rod is configured to meet the batching speed of large dosage; while the small-diameter screw is configured, the small-dosage batching speed is met, and meanwhile, the batching precision of the large-dosage condition cannot be met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-low speed automatic batching device and a batching method with high batching speed and high batching precision.
In order to solve the technical problems, the invention adopts the following technical scheme:
the high-low speed automatic batching device comprises an electric control system, and a feeding mechanism, a feeding mechanism and a metering mechanism which are respectively connected with the electric control system, wherein the feeding mechanism, the feeding mechanism and the metering mechanism are matched in sequence; the feeding mechanism comprises a motor, a transmission mechanism, a stirring shaft, a first batching screw rod and/or a second batching screw rod which can be automatically clutched according to the difference value between the batching amount and the target value, wherein the input end of the transmission mechanism is connected with the motor, and the output end of the transmission mechanism is connected with the first batching screw rod, the second batching screw rod and the stirring shaft; the first batching screw rod and the second batching screw rod are arranged in parallel and rotate in opposite directions, and the diameter of the second batching screw rod is larger than that of the first batching screw rod; and paddles for preventing bridging of materials in the feeding mechanism are arranged on the stirring shaft.
According to the high-low speed automatic batching device, a power source motor is adopted, and through the arrangement of a transmission mechanism, the stirring shaft, the first batching screw rod and the second batching screw rod are driven to rotate, the first batching screw rod is a small-diameter screw rod, high-precision feeding is achieved, and the second batching screw rod is a large-diameter screw rod, so that rapid batching is achieved; when the second batching screw rod is connected, the first batching screw rod and the second batching screw rod rotate in opposite directions at the same rotating speed, so that rapid batching is realized; when the second batching screw rotates and the first batching screw stops running, low-speed batching is realized; when the second batching screw rod is disconnected, only the first batching screw rod rotates, and accurate batching is realized by adjusting the rotating speed of the first batching screw rod; a motor is adopted as power, so that the cost is saved compared with the traditional design; in addition, the invention has screw rods with two sizes, can realize quick and high-precision batching in the batching range from tens of grams to tens of kilograms, and overcomes the difficulty that the traditional batching device can not combine high efficiency and high precision.
Further, the transmission mechanism comprises a power input shaft, a first gear, a second gear, a third gear, a fourth gear, a fifth gear and a sixth gear, wherein the first gear is meshed with the second gear, the third gear is meshed with the fourth gear, and the fifth gear is meshed with the sixth gear; the first gear, the third gear and the fifth gear are arranged on the power input shaft, and the second gear, the fourth gear and the sixth gear are respectively arranged on the stirring shaft, the first batching screw and the second batching screw. The stirring shaft, the first batching screw rod and the second batching screw rod are driven by the power input shaft, so that on one hand, the cost is saved compared with the traditional design, and on the other hand, when the rotating speed of the motor is regulated to low-speed batching, the rotating speed of the stirring shaft is synchronously reduced, and therefore the influence of the stirring process on the batching process metering precision is obviously reduced; the first gear, the second gear, the third gear, the fourth gear, the fifth gear and the sixth gear can be arranged in the gear box, and the gear box is compact and reliable in structure, convenient to repair and maintain and low in failure rate.
Further, the power input shaft comprises a first input shaft and a second input shaft which are matched, the first gear and the third gear are mounted on the first input shaft, and the fifth gear is mounted on the second input shaft; an electromagnetic clutch used for controlling power transmission between the first input shaft and the second input shaft is arranged between the first input shaft and the second input shaft, and the electromagnetic clutch is connected with the electrical control system. The metering mechanism collects the signal of the batching amount in real time and transmits the signal to the electrical control system in real time; when the difference value between the batching amount and the target value is larger than the set value, the electric control system controls the electromagnetic clutch power supply to be attracted, and the first input shaft and the second input shaft rotate in opposite directions at the same speed; when the difference between the batching amount and the target value is smaller than the set value, the electric control system controls the electromagnetic clutch to be disconnected, the second input shaft stops running, and the first input shaft continues to rotate.
Preferably, the electromagnetic clutch includes a stopper bracket capable of blocking the second input shaft from rotating following the first input shaft. When the electromagnetic clutch controls the second input shaft to stop rotating, the stop frame is matched with a part arranged on the first input shaft, so that the influence of the following rotation of the second input shaft on the batching precision is further prevented.
Further, the reduction ratio of the first gear to the second gear is 1:4-1:6, the reduction ratio of the third gear to the fourth gear is 1.5:1-2.5:1, and the reduction ratio of the fifth gear to the sixth gear is 1.5:1-2.5:1; the rotating speed of the power input shaft is 200 r/min-300 r/min. The rotating speeds of the first batching screw rod and the second batching screw rod are the same, and the first batching screw rod and the second batching screw rod rotate oppositely to realize rapid batching; the rotating speed of the blade is smaller than that of the first batching screw rod and the second batching screw rod, so that the problem of dust flying caused by too high stirring speed during powder material distribution is avoided.
Further, the diameter of the first batching screw rod is 10 mm-30 mm, and the diameter of the second batching screw rod is 70 mm-90 mm. The diameters of the first batching screw rod and the second batching screw rod are different, and the speed and the precision of conveying materials are different; when quick batching is needed, the first batching screw rod and the second batching screw rod are controlled to rotate oppositely; when the low-speed batching needs to be controlled, the first batching screw rod is controlled to continuously rotate, and the second batching screw rod stops rotating; when the batching precision needs to be controlled, the second batching screw rod keeps a stop state, and the rotating speed of the first batching screw rod is adjusted.
Further, the motor is a variable frequency motor with adjustable rotating speed, and the variable frequency motor is connected with the electrical control system. The metering mechanism monitors the batching amount in real time and transmits the batching amount to the electric control system for analysis, and the electric control system controls the frequency of the motor according to the difference value between the batching amount and the target value so as to control the rotating speed of the first batching screw and/or the second batching screw and whether the electromagnetic clutch is disconnected or not.
Further, the feeding mechanism comprises a cylindrical hopper; the paddle consists of a plurality of folded plates with different included angles and is arranged in the hopper. The arrangement of the paddles prevents the material from being overhead in the hopper and obstructing the transfer of the material from the feed mechanism to the feed mechanism.
The invention also provides a high-low speed automatic batching method, which comprises the following steps:
s1, conveying materials to a feeding mechanism by a feeding mechanism under the action of paddles, and then conveying the materials to a metering mechanism by the feeding mechanism to meter the material quantity;
s2, after the step S1, if the difference value between the batching amount and the target value is larger than the set value, the electric control system controls the electromagnetic clutch power supply to be attracted, and the first batching screw rod and the second batching screw rod rotate in opposite directions at the same speed;
s3, after the step S1 or the step S2, if the difference value between the batching amount and the target value is smaller than the set value, the electric control system controls the electromagnetic clutch to be disconnected, the second batching screw stops running, and the first batching screw continues to rotate;
s4, after the step S3, the metering mechanism collects signals of the batching amount in real time, and the rotating speed of the first batching screw rod is regulated through the motor.
Preferably, the materials are powder materials and/or granular materials, so that the method is wide in application range and has good practicability.
Compared with the prior art, the invention has the beneficial effects that:
(1) The batch amount is monitored in real time through a metering mechanism and is transmitted to an electrical control system for analysis: when the difference between the batching amount and the target value is larger than the set value, the first batching screw and the second batching screw rotate in opposite directions at the same speed, so that rapid batching is realized; if the difference value between the batching amount and the target value is smaller than the set value, stopping the operation of the second batching screw, and continuously rotating the first batching screw to realize low-speed batching; subsequently, the second dispensing screw is kept in a state in which rotation is stopped, and the rotation speed of the first dispensing screw is adjusted by reducing the frequency of the motor, thereby realizing precise dispensing.
(2) The diameters of the first batching screw rod and the second batching screw rod are different, so that the batching device is suitable for batching from tens of grams to tens of kilograms, and the batching range is wide; the power transmission between the first input shaft and the second input shaft is controlled by controlling the opening and closing of the electromagnetic clutch, so that the running and stopping of the second batching screw rod are controlled, the batching speed and precision are converted, and the degree of automation is high.
(3) The motor is used as a power source to drive the first batching screw rod, the second batching screw rod and the stirring shaft simultaneously, so that on one hand, the cost is saved, the structure is compact and reliable, the maintenance and the guarantee are convenient, and the failure rate is low; on the other hand, when the rotation speed of the motor is regulated to low-speed batching, the rotation speed of the stirring shaft is synchronously reduced, and the influence of the stirring process on the batching process metering precision is obviously reduced.
Drawings
Fig. 1 is a schematic structural view of a high-low speed automatic batching device.
Fig. 2 is a perspective view of a feeding mechanism of the high-low speed automatic batching device.
Fig. 3 is a perspective view of the drive mechanism of the high and low speed automatic batching device.
Fig. 4 is a schematic diagram of a transmission mechanism of the high-low speed automatic batching device.
Detailed Description
The invention is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated 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 numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Example 1
Fig. 1 to 4 show a first embodiment of a high-low speed automatic batching device according to the present invention, which comprises an electrical control system, and a feeding mechanism, a feeding mechanism and a metering mechanism which are respectively connected with the electrical control system, wherein the feeding mechanism, the feeding mechanism and the metering mechanism are sequentially matched; the feeding mechanism comprises a motor 1, a transmission mechanism 2, a stirring shaft 3, a first batching screw 4 and a second batching screw 5 which can be automatically engaged and disengaged according to the difference between the batching amount and a target value, wherein the input end of the transmission mechanism 2 is connected with the motor 1, and the output end is connected with the first batching screw 4, the second batching screw 5 and the stirring shaft 3; the first batching screw rod 4 and the second batching screw rod 5 are arranged in parallel and rotate in opposite directions, and the diameter of the second batching screw rod 5 is larger than that of the first batching screw rod 4; the stirring shaft 3 is provided with a paddle 31 for preventing bridging of materials in the feeding mechanism.
As shown in fig. 2, the motor 1 is a variable frequency motor with adjustable rotation speed, and the variable frequency motor is connected with an electrical control system. The metering mechanism monitors the batching amount in real time and transmits the batching amount to an electric control system for analysis, and the electric control system controls the frequency of the motor according to the difference value between the batching amount and the target value so as to control the rotating speed of the first batching screw 4 and/or the second batching screw 5 and whether the electromagnetic clutch 6 is disconnected or not. The feeding mechanism comprises a cylindrical hopper 7; the paddle 31 is composed of a plurality of folded plates with different included angles and is arranged in the hopper 7. The provision of paddles 31 prevents material from being suspended in the hopper and impeding the transfer of material from the feed mechanism to the feed mechanism.
As shown in fig. 3 to 4, the transmission mechanism 2 includes a power input shaft, a first gear 21, a second gear 22, a third gear 23, a fourth gear 24, a fifth gear 25, and a sixth gear 26, the first gear 21 is meshed with the second gear 22, the third gear 23 is meshed with the fourth gear 24, and the fifth gear 25 is meshed with the sixth gear 26; the first gear 21, the third gear 23 and the fifth gear 25 are mounted on the power input shaft, and the second gear 22, the fourth gear 24 and the sixth gear 26 are mounted on the stirring shaft 3, the first dosing screw 4 and the second dosing screw 5 respectively. The power input shaft comprises a first input shaft 27 and a second input shaft 28 which are matched, the first gear 21 and the third gear 23 are arranged on the first input shaft 27, and the fifth gear 25 is arranged on the second input shaft 28; an electromagnetic clutch 6 for controlling power transmission between the first input shaft 27 and the second input shaft 28 is arranged between the first input shaft 27 and the second input shaft 28, the electromagnetic clutch 6 is connected with an electrical control system, and the electromagnetic clutch 6 comprises a stop frame capable of preventing the second input shaft 28 from rotating along with the first input shaft 27.
In the embodiment, the reduction ratio of the first gear 21 to the second gear 22 is 1:5, the reduction ratio of the third gear 23 to the fourth gear 24 is 2:1, and the reduction ratio of the fifth gear 25 to the sixth gear 26 is 2:1; the rotating speed of the power input shaft is 256r/min; the rotating speeds of the first batching screw 4 and the second batching screw 5 are the same, and the first batching screw and the second batching screw rotate oppositely to realize rapid batching; the rotating speed of the blade 31 is smaller than that of the first batching screw 4 and the second batching screw 5, so that the problem of dust flying caused by too high stirring speed during powder material distribution is avoided. In the embodiment, the diameter of the first batching screw 4 is 20mm, and the diameter of the second batching screw 5 is 80mm; the diameters of the first batching screw 4 and the second batching screw 5 are different, and the speed and the precision of the conveyed materials are different; when the batching speed needs to be controlled, the second batching screw rod 5 is controlled to rotate or the first batching screw rod 4 and the second batching screw rod 5 are controlled to rotate in opposite directions; when the dosing accuracy needs to be controlled, the first dosing screw 4 is controlled to continue to rotate and its rotation speed is adjusted, while the second dosing screw 5 stops rotating.
The positions of the first dispensing screw 4 and the second dispensing screw 5 in this embodiment are not limited to the above-described manner, and the positions of the first dispensing screw 4 and the second dispensing screw 5 in this embodiment may be exchanged, and the electromagnetic clutch 6 controls the automatic clutch of the first dispensing screw 4, so as to realize the switching between the fast dispensing and the slow dispensing.
Example two
The embodiment is an embodiment of the high-low speed automatic batching method, which comprises the following steps:
s1, conveying materials to a feeding mechanism by a feeding mechanism under the action of a paddle 31, conveying the materials to a metering mechanism by the feeding mechanism, monitoring the batching amount by the metering mechanism in real time, and transmitting the batching amount to an electrical control system; the electrical control system calculates the difference between the batching amount and the target value, and analyzes the difference between the difference and the set value;
s2, after the step S1, if the difference between the batching amount and the target value is larger than the set value, the electric control system controls the electromagnetic clutch 6 to conduct power suction so as to achieve power transmission between the first input shaft 27 and the second input shaft 28, and the first batching screw 4 and the second batching screw 5 rotate in opposite directions at the same speed so as to achieve rapid batching;
s3, after the step S1 or the step S2, if the difference value between the batching amount and the target value is smaller than the set value, the electric control system controls the electromagnetic clutch to be powered off and separated, no power is transmitted between the first input shaft 27 and the second input shaft 28, the second batching screw 5 stops running, and the first batching screw 4 continues to rotate, so that low-speed batching is realized;
s4, after the step S3, the metering mechanism collects signals of the batching amount in real time, and adjusts the rotating speed of the first batching screw 4 by reducing the frequency of the motor so as to realize accurate batching; at the same time, the rotation speed of the stirring shaft 3 is reduced, and the interference of the stirring process on the metering precision of the batching process is reduced.
Wherein, the material is powder material and/or granule material, and application scope is extensive, has fine practicality.
Example III
This embodiment is similar to the embodiment, except that: the power input shaft comprises a first input shaft, a second input shaft and a third input shaft, electromagnetic clutches connected with an electric control system are connected between the first input shaft and the second input shaft and between the second input shaft and the third input shaft, and a first gear 21, a third gear 23 and a fifth gear 25 are respectively arranged on the first input shaft, the second input shaft and the third input shaft. In this embodiment, the electrical control system may control the first input shaft to rotate alone, the first input shaft to rotate together with the second input shaft, or the first input shaft, the second input shaft, and the third input shaft to rotate together, thereby controlling the rotation of the first dispensing screw 4 and/or the second dispensing screw 5, and further improving the dispensing accuracy.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. The high-low speed automatic batching device comprises an electric control system, and a feeding mechanism, a feeding mechanism and a metering mechanism which are respectively connected with the electric control system, wherein the feeding mechanism, the feeding mechanism and the metering mechanism are matched; the feeding mechanism is characterized by comprising a motor (1), a transmission mechanism (2), a stirring shaft (3), a first batching screw (4) and a second batching screw (5) which can be automatically engaged and disengaged according to the difference between the batching amount and a target value; the input end of the transmission mechanism (2) is connected with the motor (1), and the output end of the transmission mechanism is connected with the first batching screw (4), the second batching screw (5) and the stirring shaft (3); the first batching screw rod (4) and the second batching screw rod (5) are arranged in parallel and rotate in opposite directions, and the diameter of the second batching screw rod (5) is larger than that of the first batching screw rod (4); the stirring shaft (3) is provided with a paddle (31) for preventing materials in the feeding mechanism from bridging;
the transmission mechanism (2) comprises a power input shaft, a first gear (21), a second gear (22), a third gear (23), a fourth gear (24), a fifth gear (25) and a sixth gear (26), wherein the first gear (21) is meshed with the second gear (22), the third gear (23) is meshed with the fourth gear (24), and the fifth gear (25) is meshed with the sixth gear (26); the first gear (21), the third gear (23) and the fifth gear (25) are arranged on the power input shaft, and the second gear (22), the fourth gear (24) and the sixth gear (26) are respectively arranged on the stirring shaft (3), the first batching screw (4) and the second batching screw (5);
the power input shaft comprises a first input shaft (27) and a second input shaft (28) which are matched, the first gear (21) and the third gear (23) are mounted on the first input shaft (27), and the fifth gear (25) is mounted on the second input shaft (28); an electromagnetic clutch (6) for controlling power transmission between the first input shaft (27) and the second input shaft (28) is arranged between the first input shaft (27) and the second input shaft (28), and the electromagnetic clutch (6) is connected with the electrical control system;
the motor (1) is a variable frequency motor with adjustable rotating speed, and the variable frequency motor is connected with the electrical control system.
2. The high-low speed automatic batching device according to claim 1, characterized in that the electromagnetic clutch (6) comprises a stop frame capable of preventing the second input shaft (28) from following the rotation of the first input shaft (27).
3. The high-low speed automatic batching device according to claim 1, characterized in that the reduction ratio of the first gear (21) to the second gear (22) is 1:4-1:6, the reduction ratio of the third gear (23) to the fourth gear (24) is 1.5:1-2.5:1, and the reduction ratio of the fifth gear (25) to the sixth gear (26) is 1.5:1-2.5:1; the rotating speed of the power input shaft is 200 r/min-300 r/min.
4. A high and low speed automatic batching device according to any of claims 1 to 3, characterized in that the diameter of the first batching screw (4) is 10 mm-30 mm and the diameter of the second batching screw (5) is 70 mm-90 mm.
5. The high-low speed automatic batching device according to claim 1, characterized in that the feeding mechanism comprises a cylindrical hopper (7); the paddle (31) consists of a plurality of folded plates with different included angles and is arranged in the cylindrical hopper (7).
6. A dosing method of a high and low speed automatic dosing device according to claim 1, comprising the steps of:
s1, conveying materials to a feeding mechanism by a feeding mechanism, and then conveying the materials to a metering mechanism by the feeding mechanism to meter the material distribution;
s2, after the step S1, if the difference value between the batching amount and the target value is larger than the set value, the electric control system controls the electromagnetic clutch (6) to conduct power supply attraction, and the first batching screw rod (4) and the second batching screw rod (5) rotate in opposite directions at the same speed;
s3, after the step S1 or the step S2, if the difference value between the batching amount and the target value is smaller than the set value, the electric control system controls the electromagnetic clutch (6) to be disconnected, the second batching screw (5) stops running, and the first batching screw (4) continues to rotate;
s4, after the step S3, the metering mechanism collects signals of the batching amount in real time, and the rotating speed of the first batching screw rod (4) is adjusted through the motor (1).
7. The method for preparing a high-low speed automatic preparation device according to claim 6, wherein the material is powder material and/or granular material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393959.6A CN107998923B (en) | 2017-12-21 | 2017-12-21 | High-low speed automatic batching device and batching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393959.6A CN107998923B (en) | 2017-12-21 | 2017-12-21 | High-low speed automatic batching device and batching method |
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| CN108940004A (en) * | 2018-07-11 | 2018-12-07 | 无锡南理工科技发展有限公司 | A kind of Mechatronic mixer and its application method |
| DE102019214156A1 (en) * | 2019-09-17 | 2021-03-18 | Hüttlin Gmbh | Method for dosing a target component |
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