CN112591484A - Uniform powder feeding device and feeding method thereof - Google Patents
Uniform powder feeding device and feeding method thereof Download PDFInfo
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- CN112591484A CN112591484A CN202011470705.1A CN202011470705A CN112591484A CN 112591484 A CN112591484 A CN 112591484A CN 202011470705 A CN202011470705 A CN 202011470705A CN 112591484 A CN112591484 A CN 112591484A
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- servo motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G41/00—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
- B65G41/001—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames with the conveyor adjustably mounted on the supporting frame or base
- B65G41/002—Pivotably mounted
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention relates to an even powder feeding device and a feeding method thereof, wherein the even powder feeding device comprises a powder feeding belt mechanism, a rotating mechanism, a material carrying platform with a plurality of bins and a control assembly, the rotating mechanism is arranged in the center of the material carrying platform and is driven by a rotating motor to rotate around a central axis, the powder feeding belt mechanism is movably arranged on a guide rail fixedly arranged on the upper surface of the rotating mechanism through a guide wheel and is driven by a translation servo motor to translate on the guide rail. The uniform powder feeding device provided by the invention is matched with a feeding method, complex belt guide rail lines originally arranged between the bins are eliminated, the use of equipment is reduced, the occupied space of the equipment is reduced, more bins can be arranged in the same area, the storage capacity is improved, meanwhile, the powder particles in each bin are uniformly distributed in a grading manner, and the quality of the finished wall and floor tiles produced subsequently is improved.
Description
Technical Field
The invention relates to the field of production of wall and floor tiles, in particular to a uniform powder feeding device and a feeding method thereof.
Background
In the production management control of the wall and floor tiles, the preparation of high-quality powder has a critical significance on the forming and firing of the wall and floor tiles, and the quality of the powder quality of the wall and floor tiles directly influences the quality of final finished products, so that the water content, the grain composition, the specific gravity and the like of the powder need to be strictly controlled in the process of spraying and pulverizing. In addition, the uniformity of different batches of powder in the storage bin is also important to ensure, generally, the powder obtained by spray powder preparation is conveyed to a powder storage bin through a belt and is aged for more than 24 hours, and then the aged powder is conveyed to a press through the belt by a powder conveying system to be pressed and molded.
In the production industry of wall and floor tiles, in order to save the field, a common powder feeding system is provided with a belt conveying track which is responsible for a left bin and a right bin, and powder is conveyed to the different bins at two sides by a motor driving a belt to rotate forwards and backwards. Generally, after the bin is full, the powder is sent to the second bin along the track by the guide wheel mechanism until the two rows of bins are full of powder. The powder feeding method has the following defects: because what adopt is middle earlier long-pending material, flow toward the accumulation type unloading mode all around again, the large granule in the in-process powder of unloading is swift current toward four sides, the powder that the granule is little is piled up in the centre, form the toper and distribute, lead to the powder uneven distribution in the feed bin, though the mode that the different section positions of a plurality of feed bins of later stage adoption unloading can reduce the particle gradation of whole powder, but inevitable still has the inhomogeneous phenomenon of powder distribution, and then lead to unburned bricks or even off-the-shelf output quality, and because the required powder conveying belt that arranges of this kind of mode, the guide rail, facilities such as circuit are more, the space that occupies is great, the staff maintains the work load of maintenance powder conveying system great.
Therefore, how to improve the uniformity of the powder in the storage bin of the wall and floor tiles and reduce the number of powder feeding devices on the premise of meeting production demand becomes the direction of the next development of the production industry of the wall and floor tiles.
Disclosure of Invention
The purpose of the invention is: the invention provides a uniform powder feeding device for solving the problems of uneven powder accumulation and complex equipment, and the other purpose of the invention is to provide a feeding method of the uniform powder feeding device, which can realize uniform powder feeding, uniform distribution of powder particle grading in a storage bin and complete feeding of the whole material loading platform by using one device.
The technical solution of the invention is as follows: the utility model provides an even powder feeding device, its special character lies in, including powder feeding belt mechanism, rotary mechanism, the material platform and the control assembly of carrying of placing a plurality of feed bin, rotary mechanism sets up at the center of carrying the material platform and wholly around the central axis rotation of carrying the material platform under the drive of rotating electrical machines, powder feeding belt mechanism passes through guide pulley movable mounting on the guide rail that the rotary mechanism upper surface set firmly, is translation reciprocating motion on the guide rail under the drive of translation servo motor, makes the even tiling of powder ability in waiting to feed the feed bin.
Preferably, the method comprises the following steps: the powder feeding belt mechanism comprises a support, two pairs of roller bearings, a driving roller, a driven roller, a powder feeding belt and a belt servo motor, wherein the two pairs of roller bearings are fixedly arranged at two ends of the support respectively, the driving roller and the driven roller are fixed between the roller bearings, the powder feeding belt is connected with the driving roller and the driven roller, the belt servo motor is fixed on the support through a motor support, an output shaft of the belt servo motor is connected with a guide wheel, the support is movably arranged on a guide rail, fixedly arranged on the upper surface of the rotating mechanism, of the guide wheel support, the belt servo motor and the belt servo motor are in control connection with the control assembly, and the output shaft of the belt servo motor is connected with the guide wheel.
Preferably, the method comprises the following steps: the output shaft of the translation servo motor is sleeved with a first positioning gear, a first induction electric eye is fixedly arranged on the same vertical plane with the positioning gear, and the first induction electric eye is in control connection with the control assembly.
Preferably, the method comprises the following steps: the rotating mechanism comprises a base, a speed reduction motor set fixed on the base through a plurality of fixing elements, a guide rail support fixedly connected with an output shaft of the speed reduction motor set, a guide rail fixed on the guide rail support, and a universal wheel installed on the bottom surface of the guide rail support through a universal wheel support, wherein the output shaft of the speed reduction motor set is positioned in the center of the base, the universal wheel rotates on the upper surface of the base, the speed reduction motor set comprises a rotating motor and a reduction gearbox, the output shaft of the rotating motor is connected with the reduction gearbox, and the speed reduction motor set is in control connection with a control assembly.
Preferably, the method comprises the following steps: and limiting rods for preventing the guide wheel from falling off the guide rail are fixedly arranged at the two side ends of the guide rail respectively.
Preferably, the method comprises the following steps: the output shaft of the gear motor set is sleeved with a second positioning gear, a second induction electric eye is fixedly arranged at the same horizontal height with the second positioning gear, and the second induction electric eye is in control connection with the control component.
Preferably, the method comprises the following steps: a plurality of through holes are uniformly distributed on the material carrying platform around the center, the through holes are arranged in a diffused manner from inside to outside at equal intervals, and the stock bin is arranged in the through holes;
the feed bin bottom becomes the type of falling the awl, is located the awl bottom of feed bin and is equipped with the valve, full storehouse response electric eye has still set firmly on the feed bin inner wall, full storehouse response electric eye and control assembly control connection.
The invention also provides a feeding method of the uniform powder feeding device, which is characterized by comprising the following steps:
the control method comprises the steps of closing a valve at the bottom of a storage bin, starting a translation servo motor, controlling a powder conveying belt mechanism to translate along a guide rail, feeding back to a control assembly after a first induction electric eye induces a first positioning gear to rotate by a first set angle, and controlling the translation servo motor to stop by the control assembly;
secondly, a belt servo motor is started, a powder conveying belt is driven by a driving roller to rotate, the powder processed by the spraying tower is conveyed into a first storage bin of a first layer, and a translation servo motor drives a powder conveying belt mechanism to reciprocate on a guide rail;
thirdly, the full bin sensing electric eye senses the full bin and feeds the full bin to the control assembly, and the control assembly controls the belt servo motor to stop and stops feeding powder;
the control assembly controls the rotating motor to be started, the second induction electric eye induces the second positioning gear to rotate by a second set angle and then feeds the second set angle back to the control assembly, the control assembly controls the rotating motor to stop, and powder falls into a second storage bin on the same layer from the powder conveying belt;
after the second step and the fourth step are repeated until the first-layer storage bin is full of materials, the motor is controlled to control the translation servo motor to start, the powder conveying belt mechanism is controlled to translate along the guide rail, the first induction electric eye induces the first positioning gear to rotate by a third set angle and then feeds the third set angle back to the control assembly, the control assembly controls the translation servo motor to stop, and the powder conveying belt conveys powder into the first storage bin of the next layer;
sixthly, repeating the steps and the step of the fifth, and controlling the mechanisms to reset by the control assembly until all the bins are full of materials.
Compared with the prior art, the invention has the beneficial effects that:
the powder conveying belt mechanism performs reciprocating motion when conveying powder to the storage bin, so that powder particles in the storage bin are uniformly distributed, the uniformity of green bricks of wall and floor tiles formed by subsequent pressing is improved, and the quality of finished wall and floor tiles is improved;
the bins on the loading platform are uniformly distributed around the center and are arranged in a diffused manner at equal intervals from inside to outside, so that the space utilization rate is improved, the number of powder conveying belt mechanisms is reduced, the cost is reduced, and the storage capacity of powder is improved;
according to the uniform powder feeding device, loading of the plurality of bins can be completed only by matching one powder feeding belt mechanism with the rotating mechanism, the device is simple in structure, the labor intensity of staff for maintaining the device is reduced, and the utilization rate of human resources is improved.
Drawings
FIG. 1 is a schematic structural view of a powder feeding mechanism of the prior art;
FIG. 2 is a schematic structural view of the uniform powder feeding device of the present invention;
FIG. 3 is a top view of a loading platform according to a first embodiment of the present invention;
fig. 4 is a top view of a loading platform according to a second embodiment of the present invention.
Description of the main Components
| 1 electric machine | 2 |
3 |
31 |
| 32 full storehouse induction |
4 |
51 support | 52-roller bearing |
| 53 |
54 driven |
55 |
56 |
| 57 |
571 |
58 |
591 |
| 592 first inductive |
6 |
61 |
62 rotating |
| 63 |
631 output shaft of |
64 |
65 |
| 651 |
66 |
661 castor with |
671 |
| 672 second induction |
7 carry material platform |
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings:
the following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the invention. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
Referring to fig. 1, in the existing wall and floor tile production industry, a powder feeding system is arranged between two parallel rows of bins, a motor 1 is used to drive a belt 2 to rotate forward or backward to respectively feed powder to the bins 3 on two sides, when the same bin 3 is full, the powder feeding system moves to the next bin along a track, and the powder feeding is carried out by the steps until the bins 3 on two sides are full, and then the machine is stopped.
Therefore, based on the defects of the existing scheme, the invention provides an even powder feeding device which comprises the following components:
referring to fig. 2, an even powder feeding device includes a powder feeding belt mechanism, a rotating mechanism, a material loading platform with a plurality of bins, and a control component, where the control component is a PLC controller, the rotating mechanism is disposed at the center of the material loading platform and is driven by a rotating motor to rotate around the central axis of the material loading platform, the powder feeding belt mechanism is movably mounted on a guide rail fixedly disposed on the upper surface of the rotating mechanism through a guide wheel, and is driven by a translation servo motor to translate on the guide rail, so that powder can be uniformly spread in the bins to be loaded.
The powder feeding belt mechanism comprises a support 51, two pairs of roller bearings 52 which are fixedly arranged at two ends of the support 51 respectively, a driving roller 53 and a driven roller 54 which are fixed between the roller bearings 52, a powder feeding belt 55 which connects the driving roller 53 and the driven roller 54, and a belt servo motor 56 which is fixed on the support 51 through a motor support and has an output shaft connected with the driving roller 53, wherein the bottom of the support 51 is provided with a plurality of guide wheel supports 57, one guide wheel support 57 is also fixedly provided with a translation servo motor 58, the output shaft of the translation servo motor 58 is connected with guide wheels 571, the support 51 is movably arranged on a guide rail 65 fixedly arranged on the upper surface of a rotating mechanism through guide wheels 571 which are respectively pivoted at the bottom ends of the guide wheel supports 57, and the belt servo motor 56 and the translation servo motor 58 are in control connection;
still the cover is equipped with first positioning gear 591 on translation servo motor 58's the output shaft, still sets firmly first response electric eye 592 on the guide pulley support 57 that corresponds the cover and be equipped with first positioning gear 591, first response electric eye 592 and first positioning gear 591 are located same vertical plane, and first response electric eye 592 responds to first positioning gear 591 rotation angle, feeds back to the PLC controller, and the PLC controller is according to the translation distance of 3 mutual distance control powder feeding belt mechanisms of every layer feed bin on guide rail 65.
The rotating mechanism comprises a base 61, a speed reducing motor group fixed on the base 61 through a plurality of bolts, a guide rail bracket 64 fixedly connected with an output shaft 631 of the speed reducing motor group, a guide rail 65 fixed on the guide rail bracket 64, and a universal wheel 661 installed on the bottom surface of the guide rail bracket 64 through a universal wheel bracket 66, wherein the output shaft 631 of the speed reducing motor group is positioned in the center of the base 61, the universal wheel 661 rotates on the upper surface of the base 61, the speed reducing motor group comprises a rotating motor 62 and a speed reducing box 63, the output shaft of the rotating motor 62 is connected with the speed reducing box 63, and the speed reducing motor group is in control connection with a PLC (programmable logic controller;
the two side ends of the guide rail 65 are respectively and fixedly provided with a limiting rod 651 for preventing the guide pulley 571 from falling off the guide rail 65, and the limiting rod is used for preventing the powder feeding belt mechanism from integrally falling off the rotating mechanism;
the cover is equipped with second positioning gear 671 on gear motor group's the output shaft, with second positioning gear is located same horizontal plane and has set firmly second response electric eye 672, second response electric eye 672 responds to second positioning gear 671 rotation angle feedback to the PLC controller, and the rotatory angle of PLC controller according to the distribution control rotary mechanism of same layer feed bin 3.
The distribution of feed bin 3 on year material platform 7 has two kinds of forms:
example 1:
referring to fig. 3, a plurality of through holes are uniformly circumferentially arrayed around the center on the material carrying platform 7, the through holes are equidistantly and dispersedly arranged from inside to outside, the storage bin 3 is arranged in the through holes, the bottom of the storage bin 3 is in an inverted cone shape, a valve 31 is arranged at the cone bottom of the storage bin 3, a full-bin induction electric eye 32 is fixedly arranged on the inner wall of the storage bin, and the full-bin induction electric eye 32 is connected with a PLC controller in a control manner.
Example 2:
referring to fig. 4, the difference from the solution disclosed in embodiment 1 is that a plurality of through holes are uniformly distributed on the material loading platform 7, the through holes are arranged in a diffused manner from inside to outside at equal intervals by the center of the material loading platform 7, and the through holes of each layer are combined to form a square with the center point coinciding with the central axis of the material loading platform 7.
The feeding method of the uniform powder feeding device provided by the invention specifically comprises the following steps (the distribution form of the bin 3 on the loading platform 7 in the first embodiment):
firstly, closing a valve 31 at the bottom of a storage bin 3, starting a translation servo motor 58, controlling a powder feeding belt mechanism to translate along a guide rail 65, feeding back to a PLC controller after a first induction electric eye 592 induces a first positioning gear 591 to rotate 360 degrees, and controlling the translation servo motor 58 to stop by the PLC controller;
secondly, starting a belt servo motor 56, driving a powder conveying belt 55 to rotate under the driving of a driving roller 53, conveying the powder processed by the spraying tower into the first storage bin 3 of the first layer, and driving a powder conveying belt mechanism to perform reciprocating translational motion on a guide rail 65 by a translation servo motor 58 (namely, a first positioning gear 591 performs forward rotation or reverse rotation);
thirdly, the full bin induction electric eye 32 induces the full bin 3 to feed back to the PLC controller, and the PLC controller controls the belt servo motor 56 to stop feeding powder;
the PLC controller controls the rotating motor 62 to be started, the second induction electric eye 672 induces the second positioning gear 671 to rotate for 72 degrees and feeds back the rotation to the PLC controller, the PLC controller controls the rotating motor 62 to stop, and powder falls into the second storage bin 3 on the same layer from the powder conveying belt 55;
after the steps from the second step to the fourth step are repeated until the first-layer storage bin 3 is full of materials, the PLC controller controls the translation servo motor 58 to be started, the powder conveying belt mechanism is controlled to translate along the guide rail 65, the first induction electric eye 592 induces the first positioning gear 591 to rotate for 360 degrees and then feeds the powder back to the PLC controller, the PLC controller controls the translation servo motor 58 to be stopped, and the powder conveying belt 55 conveys powder into the first storage bin 3 of the next layer;
sixthly, repeating the steps and the step of the fifth until all the bins 3 are full of materials, and controlling the mechanisms to reset by the PLC to complete loading of the bin powder.
The above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (8)
1. The utility model provides an even powder feeding device, its characterized in that includes powder feeding belt mechanism, rotary mechanism, places the material platform and the control assembly that carry of a plurality of feed bin, rotary mechanism sets up at the center of carrying the material platform and wholly around the central axis rotation of carrying the material platform under the drive of rotating electrical machines, powder feeding belt mechanism passes through guide pulley movable mounting on the guide rail that the rotary mechanism upper surface set firmly, is translation reciprocating motion on the guide rail under translation servo motor's drive, makes the even tiling of powder ability in waiting to feed the feed bin.
2. The uniform powder feeding device according to claim 1, wherein the powder feeding belt mechanism comprises a bracket, two pairs of roller bearings, a driving roller and a driven roller fixed between the roller bearings, a powder feeding belt connecting the driving roller and the driven roller, and a belt servo motor fixed on the bracket through a motor bracket and having an output shaft connected with the driving roller, wherein a plurality of guide wheel brackets are arranged at the bottom of the bracket, a translation servo motor is further fixed on one of the guide wheel brackets, the output shaft of the translation servo motor is connected with a guide wheel, the bracket is movably mounted on a guide rail fixed on the upper surface of the rotating mechanism through guide wheels respectively pivoted at the bottom ends of the guide wheel brackets, and the belt servo motor and the translation servo motor are in control connection with the control assembly.
3. The uniform powder feeding device according to claim 2, wherein a first positioning gear is sleeved on an output shaft of the translation servo motor, a first induction electric eye is fixedly arranged on the same vertical plane with the positioning gear, and the first induction electric eye is in control connection with the control assembly.
4. The uniform powder feeding device according to claim 1, wherein the rotating mechanism comprises a base, a deceleration motor group fixed on the base through a plurality of fixing elements, a guide rail support fixedly connected with an output shaft of the deceleration motor group, a guide rail fixed on the guide rail support, and a universal wheel mounted on the bottom surface of the guide rail support through a universal wheel support, the output shaft of the deceleration motor group is positioned in the center of the base, the universal wheel rotates on the upper surface of the base, the deceleration motor group comprises a rotating motor and a reduction gearbox, the output shaft of the rotating motor is connected with the reduction gearbox, and the deceleration motor group is in control connection with the control assembly.
5. The uniform powder feeding device as claimed in claim 4, wherein two side ends of the guide rail are respectively fixedly provided with a limiting rod for preventing the guide wheel from falling off the guide rail.
6. The uniform powder feeding device according to claim 4, wherein a second positioning gear is sleeved on an output shaft of the reduction motor set, a second induction electric eye is fixedly arranged at the same horizontal height with the positioning gear, and the second induction electric eye is in control connection with the control component.
7. The uniform powder feeding device according to claim 1, wherein a plurality of through holes are uniformly distributed around the center on the loading platform, the through holes are arranged in a diffused manner from inside to outside at equal intervals, and the bin is arranged in the through holes;
the feed bin bottom becomes the type of falling the awl, is located the awl bottom of feed bin and is equipped with the valve, full storehouse response electric eye has still set firmly on the feed bin inner wall, full storehouse response electric eye and control assembly control connection.
8. The feeding method of the uniform powder feeding device is characterized by comprising the following steps of:
the control method comprises the steps of closing a valve at the bottom of a storage bin, starting a translation servo motor, controlling a powder conveying belt mechanism to translate along a guide rail, feeding back to a control assembly after a first induction electric eye induces a first positioning gear to rotate by a first set angle, and controlling the translation servo motor to stop by the control assembly;
secondly, a belt servo motor is started, a powder conveying belt is driven by a driving roller to rotate, the powder processed by the spraying tower is conveyed into a first storage bin of a first layer, and a translation servo motor drives a powder conveying belt mechanism to reciprocate on a guide rail;
thirdly, the full bin sensing electric eye senses the full bin and feeds the full bin to the control assembly, and the control assembly controls the belt servo motor to stop and stops feeding powder;
the control assembly controls the rotating motor to be started, the second induction electric eye induces the second positioning gear to rotate by a second set angle and then feeds the second set angle back to the control assembly, the control assembly controls the rotating motor to stop, and powder falls into a second storage bin on the same layer from the powder conveying belt;
after the second step and the fourth step are repeated until the first-layer storage bin is full of materials, the motor is controlled to control the translation servo motor to start, the powder conveying belt mechanism is controlled to translate along the guide rail, the first induction electric eye induces the first positioning gear to rotate by a third set angle and then feeds the third set angle back to the control assembly, the control assembly controls the translation servo motor to stop, and the powder conveying belt conveys powder into the first storage bin of the next layer;
sixthly, repeating the steps and the step of the fifth, and controlling the mechanisms to reset by the control assembly until all the bins are full of materials.
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| CN202011470705.1A CN112591484B (en) | 2020-12-14 | 2020-12-14 | Uniform powder feeding device and feeding method thereof |
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| CN212049636U (en) * | 2019-12-31 | 2020-12-01 | 长沙聿鸿环保科技有限公司 | Material distributing and distributing device |
| CN111170028A (en) * | 2020-01-21 | 2020-05-19 | 中化重庆涪陵化工有限公司 | Many hoppers of sulphur feeding conveying system |
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| CN112591484B (en) | 2022-12-27 |
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