CN111495270B - Device for metering a discharge and corresponding method - Google Patents
Device for metering a discharge and corresponding method Download PDFInfo
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- CN111495270B CN111495270B CN202010523577.6A CN202010523577A CN111495270B CN 111495270 B CN111495270 B CN 111495270B CN 202010523577 A CN202010523577 A CN 202010523577A CN 111495270 B CN111495270 B CN 111495270B
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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
- B01F35/716—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components
- B01F35/7163—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components the containers being connected in a mouth-to-mouth, end-to-end disposition, i.e. the openings are juxtaposed before contacting the contents
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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
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
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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
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2218—Weight of at least one component to be mixed
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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
- B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge
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- Chemical Kinetics & Catalysis (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention relates to a device for metering and discharging materials and a corresponding method, wherein the device for metering and discharging materials comprises a metering module, a temporary storage module, an aggregate and stirring module and a main control module. The device for metering and discharging and the corresponding method have the advantages of high metering precision, capability of ensuring uniform stirring, superior performance and high adaptability.
Description
Technical Field
The invention relates to the field of machinery, in particular to the field of mechanical production, and specifically relates to a metering and discharging device and a corresponding method.
Background
In the existing material production process, various raw materials are often used simultaneously, and the main purpose of the metering machine is to keep the accuracy of the formula proportion, so as to reduce chromatic aberration and improve the product performance. The materials used are generally classified into a main material 5, a coloring material 4, an additive material, a pulverized material, and the like.
The metering sequence of a common batch processing metering machine on the market is basically as follows: main material 5, pigment 4, additive/crushing material, etc. For the sake of simplifying the description, the following description will be made on a use case using only the main material 5+ the coloring material 4, and the structure of the device for metering and discharging in the prior art can be seen in fig. 1 and 2, in which fig. 1 is a first state diagram of the device for metering and discharging in the prior art, and fig. 2 is a second state diagram of the device for metering and discharging in the prior art, and it can be seen from the diagrams that the material can be discharged from the bottom of the aggregate box 11 to the stirring box 12 after the bottom of the aggregate box 11 is opened:
a: the metering sequence is that the main material 5 is placed first, and then the pigment 4 is placed;
now, assume a certain formula proportion is pigment 4: main material 5 is 1: 99; the total amount of the metering is 1000 g;
when the main material 5 is measured first and then the coloring material 4 is measured, the variation of the coloring material 4 per + -1 g corresponds to the variation of the main material 5+ -99 g, and the variation cannot be adjusted in the measured material of the batch.
B: the metering sequence is that firstly the pigment 4 is placed, and then the main material 5 is placed;
assume now that a certain formula ratio is pigment 4: main material 5 is 1: 99; when the colorant 4 is measured first and then the main material 5 is measured, since the actual weighed value of the colorant 4 is known, the target value of the main material 5 can be adjusted before the main material 5 is measured, and the deviation of the main material 5 per + -1 g corresponds to the deviation of the colorant 4 + -0.01 g;
in conclusion, the measure precision is higher by adopting the scheme B in the measuring process. In actual operation, the metered materials need to enter a mixing part for stirring; because of errors in manufacturing and assembling, a gap is inevitably left between the stirring blade and the bottom surface of the mixing part, and the region formed by the gap is the region 10 with poor stirring.
When the coloring material 4 is measured first, the coloring material 4 enters a region where stirring is poor after the material in the hopper is discharged into the mixing portion, which may deteriorate dispersibility of the material during mixing, and eventually cause color difference.
Disclosure of Invention
The present invention overcomes at least one of the above-mentioned disadvantages of the prior art by providing a highly accurate, uniformly stirred apparatus for metering discharge and a corresponding method.
In order to achieve the object, the device for metering discharge and the corresponding method according to the invention have the following configurations:
the metering and discharging device is mainly characterized by comprising:
the metering module is used for metering different materials in the ingredients;
the temporary storage module is used for temporarily storing the materials with the least proportion in the ingredients in the metering process;
the aggregate and stirring module is used for temporarily storing other materials except the material with the least proportion in the ingredients in the metering process, and stirring and mixing the ingredients containing different materials after metering of different materials in the ingredients is finished;
and the main control module is respectively connected with the metering module and the collecting and stirring module.
Preferably, the collecting and stirring module comprises a collecting frame, a stirring frame and a stirring paddle;
the aggregate frame is used for temporarily storing other materials except the material with the least proportion in the ingredients in the metering process; the bottom of the aggregate box is selectively opened under the control of the main control module, so that the ingredients are discharged from the aggregate box to the stirring frame;
the stirring paddle is connected with the main control module and used for stirring and mixing the ingredients in the stirring frame.
Preferably, the temporary storage module is arranged on the inner side of the collecting frame.
Preferably, the aggregate and stirring module comprises an aggregate stirring frame and a stirring blade;
the aggregate stirring frame is divided into an aggregate area and a stirring area, the aggregate area is positioned above the stirring area, and the materials in the ingredients fall into the stirring area through the aggregate area;
the stirring paddle is positioned in the stirring area and is connected with the main control module.
Preferably, the temporary storage module is arranged on the inner side of the aggregate stirring frame and is positioned at the aggregate region in the aggregate stirring frame.
Furthermore, the temporary storage module comprises a temporary storage material frame and an ejector rod, and the ejector rod is arranged below the temporary storage material frame.
Furthermore, the metering module comprises a weighing unit and a material metering port corresponding to each material in the ingredients; the weighing unit and the material metering ports are respectively connected with the main control module;
the weighing unit is arranged outside the collecting and stirring module and is connected with the collecting and stirring module; each material metering opening is arranged above the aggregate and stirring module, wherein the material metering opening corresponding to the material with the least proportion in the ingredients is arranged above the temporary storage module.
The metering discharge method is mainly characterized by comprising the following steps:
(1) the metering module meters the material with the least proportion in the ingredients, and the material with the least proportion in the ingredients is placed in the temporary storage module for temporary storage;
(2) determining target metering values corresponding to other materials except the material with the minimum proportion in the ingredients according to the actual metering value of the material with the minimum proportion;
(3) metering other materials except the material with the minimum proportion in the ingredients, and temporarily storing the other materials except the material with the minimum proportion in the ingredients in the aggregate and stirring module;
(4) after the metering of all the materials in the ingredients is finished, discharging the materials with the minimum proportion temporarily stored in the temporary storage module into the aggregate and stirring module;
(5) and stirring and mixing all the materials in the ingredients.
Preferably, the step (1) specifically comprises the following steps:
(11) discharging the materials with the least proportion in the ingredients from the corresponding material metering ports to the temporary storage module;
(12) the metering module meters the materials with the minimum ratio;
(13) judging whether the actual metering value of the material with the least proportion reaches a corresponding target metering value or not;
(14) if the actual metering value of the material with the least proportion does not reach the corresponding target metering value, returning to the step (11); and (3) if the actual metering value of the material with the minimum proportion reaches the corresponding target metering value, continuing the subsequent step (2).
More preferably, the step (2) specifically comprises the following steps:
(21) judging whether the actual metering value of the material with the least proportion is equal to the corresponding target metering value or not;
(22) if the actual metering value of the material with the minimum proportion is equal to the corresponding target metering value, continuing the subsequent step (23); if the actual metering value of the material with the minimum proportion is not equal to the corresponding target metering value, continuing the subsequent step (24);
(23) taking other materials except the material with the least proportion in the ingredients as corresponding target metering values preset by a corresponding system, and continuing the subsequent step (3);
(24) judging whether the deviation of the actual metering value of the material with the least proportion is within a preset system allowable range;
(25) if the deviation of the actual metering value of the material with the minimum proportion is within a preset system allowable range, continuing the subsequent step (26); if the deviation of the actual metering value of the material with the minimum proportion is not within the preset system allowable range, performing metering exception processing and finishing metering and discharging;
(26) and (3) obtaining new target metering values corresponding to other materials except the material with the least proportion in the ingredients according to the actual metering value of the material with the least proportion, taking each new target metering value as a target metering value corresponding to other materials except the material with the least proportion in the ingredients, and continuing the subsequent step.
More preferably, the step (3) specifically comprises the following steps:
(31) discharging the materials with the largest proportion in the ingredients from the corresponding material metering ports to the aggregate and stirring module;
(32) the metering module meters the materials with the highest proportion;
(33) judging whether the actual metering value of the material with the largest proportion reaches a corresponding target metering value or not;
(34) if the actual metering value of the material with the largest proportion does not reach the corresponding target metering value, returning to the step (31); if the actual metering value of the material with the largest proportion reaches the corresponding target metering value, continuing the subsequent step (35);
(35) judging whether the deviation of the actual metering value of the material with the largest proportion is within a preset system allowable range or not;
(36) if the deviation of the actual metering value of the material with the largest proportion is within a preset system allowable range, continuing the subsequent step (37); if the deviation of the actual metering value of the material with the largest proportion is not within the preset system allowable range, performing metering exception processing and finishing metering and discharging;
(37) judging whether the metering of all the materials in the ingredients is finished or not;
(38) if the metering of all the materials in the ingredients is finished, continuing the subsequent step (4), otherwise continuing the subsequent step (39);
(39) selecting any unmetered material in the ingredients as a current metered material;
(310) discharging the current metered materials from the corresponding material metering ports to the aggregate and stirring module;
(312) the metering module meters the current metered materials;
(313) judging whether the actual metering value of the current metering material reaches a corresponding target metering value or not;
(314) if the actual metering value of the current metering material does not reach the corresponding target metering value, returning to the step (310); if the actual metering value of the current metering material reaches the corresponding target metering value, continuing the subsequent step (315);
(315) judging whether the deviation of the actual metering value of the current metering material is within a preset system allowable range or not;
(317) if the deviation of the actual metering value of the current metering material is within the preset system allowable range, returning to the step (37); and if the deviation of the actual metering value of the current metering material is not within the preset system allowable range, performing metering exception processing and finishing metering and discharging.
Preferably, the temporary storage module comprises a temporary storage material frame and a push rod;
when the collecting and stirring module comprises a collecting frame and a stirring frame, the step (4) is as follows:
after the metering of all the materials in the ingredients is finished, removing the supporting force of the ejector rods on the temporary storage material frame, discharging the material with the minimum proportion temporarily stored in the temporary storage material frame into the aggregate frame, and discharging other materials in the ingredients with the minimum proportion into the stirring frame from the bottom of the aggregate frame and then into the stirring frame from the bottom of the aggregate frame; or
When the collecting and stirring module comprises a collecting frame and a stirring frame, the step (4) is as follows:
after the metering of all the materials in the ingredients is finished, removing the supporting force of the ejector rods on the temporary storage material frame, so that the materials with the least proportion temporarily stored in the temporary storage material frame are discharged to the stirring frame from the bottom of the collection frame along with the materials in the collection frame; or
When the aggregate and stirring module comprises an aggregate stirring frame, the step (4) is specifically as follows:
after the metering of all the materials in the ingredients is finished, the supporting force of the ejector rod on the temporary storage material frame is removed, the material with the minimum proportion temporarily stored in the temporary storage material frame is discharged into the aggregate stirring frame, and other materials in the ingredients with the minimum proportion fall into a low-level stirring area from an aggregate area in the aggregate stirring frame, and then fall into the stirring area from the aggregate area of the aggregate stirring frame.
The device for metering and discharging materials comprises a metering module, a temporary storage module, an aggregation and stirring module and a main control module, and is matched with a corresponding method. The metering and discharging device and the corresponding method have the advantages of high metering precision, uniform stirring, excellent performance and high adaptability.
Drawings
Fig. 1 is a first state diagram of a prior art device for metering a discharge.
Fig. 2 shows a second state of the art device for metering a discharge.
FIG. 3a is a schematic view of a first state of the metering discharge apparatus of the present invention in a first embodiment.
FIG. 3b is a schematic view of a second state of the apparatus for metering discharge according to the invention in the first embodiment.
FIG. 4a is a schematic view of a second embodiment of the device for metering discharge according to the invention in a first state.
FIG. 4b is a schematic view of a second state of the metering discharge apparatus of the present invention in a second embodiment.
FIG. 5 is an exploded view of the buffer module and the material collecting frame of the device for metering discharge according to the first embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a temporary storage module and a material collecting frame of the device for metering discharge according to the first embodiment of the present invention.
FIG. 7 is a flow chart of a metering process of a method of metering blowdown in one embodiment.
Reference numerals
1 weighing cell
2 colorant metering orifice
3 major ingredient metering port
4 coloring Material
5 Main material
6 aggregate stirring frame
7 temporary storage material frame
8 ejector pin
9 stirring paddle
10 region of poor stirring
11 aggregate frame
12 stirring frame
13 main valve plate
14 opening and closing cylinder
Detailed Description
In order to more clearly describe the technical contents of the present invention, the following further description is given in conjunction with specific embodiments.
As shown in fig. 3a to 6, the device for metering discharge of the present invention comprises:
the metering module is used for metering different materials in the ingredients;
the temporary storage module is used for temporarily storing the materials with the least proportion in the ingredients in the metering process;
the aggregate and stirring module is used for temporarily storing other materials except the material with the least proportion in the ingredients in the metering process, and stirring and mixing the ingredients containing different materials after metering of different materials in the ingredients is finished;
and the main control module is respectively connected with the metering module and the collecting and stirring module.
In the embodiment shown in fig. 3a and 3b, the collecting and stirring module comprises a collecting frame 11, a stirring frame 12 and a stirring paddle 9;
the aggregate frame 11 is used for temporarily storing other materials except the material with the least proportion in the ingredients in the metering process; the bottom of the aggregate box 11 is selectively opened under the control of the main control module, so that the ingredients are discharged from the aggregate box to the stirring frame;
the stirring paddle is connected with the main control module and used for stirring and mixing the ingredients in the stirring frame.
In this embodiment, the temporary storage module is arranged on the inner side of the collecting frame.
As can be seen from fig. 3a, 3b and 5 and 6, the opening and closing cylinder 14 can be used to control the main valve plate 13 to open from the state of fig. 3a to the state of fig. 3b, so as to discharge the material from the bottom of the aggregate frame 11 to the stirring frame 12.
In the embodiment shown in fig. 4a and 4b, the aggregate and stirring module comprises an aggregate stirring frame 6 and a stirring paddle 9;
the aggregate stirring frame 6 is divided into an aggregate area and a stirring area, the aggregate area is positioned above the stirring area, and materials in the ingredients fall into the stirring area through the aggregate area;
the stirring paddle 9 is located in the stirring area, and the stirring paddle 9 is connected with the main control module.
In this embodiment, the temporary storage module is arranged on the inner side of the aggregate stirring frame and is positioned at the aggregate area in the aggregate stirring frame.
In this embodiment, the temporary storage module includes a temporary storage frame 7 and a push rod 8, and the push rod 8 is disposed below the temporary storage frame 7;
in the embodiment of fig. 3a and 3b, after the main valve plate 13 at the lower side of the material collecting frame 11 is opened, the push rod loses the supporting force at the lower side, and the temporary material storing frame 7 is overturned, so that the materials can be discharged.
In the embodiment shown in fig. 4a and 4b, the ram 8 can be connected to a cylinder, and the cylinder can be connected to the main control module by controlling the position of the ram to enable the temporary material frame 7 to tip over and discharge the material. Alternatively, the ram 8 may be formed directly from the piston rod of the cylinder.
In this embodiment, the metering module includes a weighing unit 1 and a material metering port corresponding to each material in the ingredients; the weighing unit 1 and each material metering port are respectively connected with the main control module;
the weighing unit 1 is arranged outside the collecting and stirring module and is connected with the collecting and stirring module; each material metering opening is arranged above the aggregate and stirring module, wherein the material metering opening corresponding to the material with the least proportion in the ingredients is arranged above the temporary storage module.
A method for metering discharge, which comprises the following steps, can be carried out using the apparatus for metering discharge of the preceding examples:
(1) the metering module meters the material with the least proportion in the ingredients, and places the material with the least proportion in the ingredients into the temporary storage module for temporary storage, and the metering module specifically comprises the following steps:
(11) discharging the materials with the least proportion in the ingredients from the corresponding material metering ports to the temporary storage module;
(12) the metering module meters the materials with the least proportion in the ingredients;
(13) judging whether the actual metering value of the material with the least proportion reaches a corresponding target metering value or not;
(14) if the actual metering value of the material with the least proportion does not reach the corresponding target metering value, returning to the step (11); if the actual metering value of the material with the minimum proportion reaches the corresponding target metering value, continuing the subsequent step (2);
(2) determining target metering values corresponding to other materials except the least-proportion material in the ingredients according to the actual metering value of the least-proportion material (according to the step, the correct proportion of the materials in the ingredients can be ensured), and specifically comprising the following steps:
(21) judging whether the actual metering value of the material with the least proportion is equal to the corresponding target metering value or not;
(22) if the actual metering value of the material with the minimum proportion is equal to the corresponding target metering value, continuing the subsequent step (23); if the actual metering value of the material with the minimum proportion is not equal to the corresponding target metering value, continuing the subsequent step (24);
(23) taking other materials except the material with the least proportion in the ingredients as corresponding target metering values preset by a corresponding system, and continuing the subsequent step (3);
(24) judging whether the deviation of the actual metering value of the material with the least proportion is within a preset system allowable range;
(25) if the deviation of the actual metering value of the material with the minimum proportion is within a preset system allowable range, continuing the subsequent step (26); if the deviation of the actual metering value of the material with the minimum proportion is not within the preset system allowable range, performing metering exception processing and finishing metering and discharging;
(26) obtaining new target metering values corresponding to other materials except the material with the least proportion in the ingredients according to the actual metering value of the material with the least proportion, taking each new target metering value as a target metering value corresponding to other materials except the material with the least proportion in the ingredients, and continuing the subsequent step (3);
(3) the method comprises the following steps of measuring other materials except the material with the minimum proportion in the ingredients, and temporarily storing the other materials except the material with the minimum proportion in the ingredients in the aggregate and stirring module, and specifically comprises the following steps:
(31) discharging the materials with the largest proportion in the ingredients from the corresponding material metering ports to the aggregate and stirring module;
(32) the metering module meters the materials with the highest proportion;
(33) judging whether the actual metering value of the material with the largest proportion reaches a corresponding target metering value or not;
(34) if the actual metering value of the material with the largest proportion does not reach the corresponding target metering value, returning to the step (31); if the actual metering value of the material with the largest proportion reaches the corresponding target metering value, continuing the subsequent step (35);
(35) judging whether the deviation of the actual metering value of the material with the largest proportion is within a preset system allowable range or not;
(36) if the deviation of the actual metering value of the material with the largest proportion is within a preset system allowable range, continuing the subsequent step (37); if the deviation of the actual metering value of the material with the largest proportion is not within the preset system allowable range, performing metering exception processing and finishing metering and discharging;
(37) judging whether the metering of all the materials in the ingredients is finished or not;
(38) if the metering of all the materials in the ingredients is finished, continuing the subsequent step (4), otherwise continuing the subsequent step (39);
(39) selecting any unmetered material in the ingredients as a current metered material;
(310) discharging the current metered materials from the corresponding material metering ports to the aggregate and stirring module;
(312) the metering module meters the current metered materials;
(313) judging whether the actual metering value of the current metering material reaches a corresponding target metering value or not;
(314) if the actual metering value of the current metered material does not reach the corresponding target metering value, returning to the step (310); if the actual metering value of the current metering material reaches the corresponding target metering value, continuing the subsequent step (315);
(315) judging whether the deviation of the actual metering value of the current metering material is within a preset system allowable range or not;
(317) if the deviation of the actual metering value of the current metering material is within the preset system allowable range, returning to the step (37); if the deviation of the actual metering value of the current metering material is not within the preset system allowable range, performing metering exception processing, and ending metering discharge;
(4) after the metering of all the materials in the ingredients is finished, discharging the materials with the minimum proportion temporarily stored in the temporary storage material module into the aggregate and stirring module;
the temporary storage module comprises a temporary storage material frame and an ejector rod;
when the collecting and stirring module comprises a collecting frame and a stirring frame, the step (4) is as follows:
after the metering of all the materials in the ingredients is finished, removing the supporting force of the ejector rods on the temporary storage material frame, and discharging the material with the minimum proportion temporarily stored in the temporary storage material frame into the aggregate frame, so that the material with the minimum proportion in the ingredients is discharged from the bottom of the aggregate frame to the stirring frame after other materials in the ingredients are discharged from the bottom of the aggregate frame to the stirring frame, and then is discharged from the bottom of the aggregate frame to the stirring frame; or
When the collecting and stirring module comprises a collecting frame and a stirring frame, the step (4) is as follows:
after the metering of all the materials in the ingredients is finished, removing the supporting force of the ejector rods on the temporary storage material frame, so that the materials with the least proportion temporarily stored in the temporary storage material frame are discharged to the stirring frame from the bottom of the collection frame along with the materials in the collection frame; or
When the aggregate and stirring module comprises an aggregate stirring frame, the step (4) is specifically as follows:
after the metering of all the materials in the ingredients is finished, the supporting force of the ejector rod on the temporary storage material frame is removed, the material with the minimum proportion temporarily stored in the temporary storage material frame is discharged into the aggregate stirring frame, and other materials in the ingredients with the minimum proportion fall into a low-level stirring area from an aggregate area in the aggregate stirring frame, and then fall into the stirring area from the aggregate area in the aggregate stirring frame.
(5) And stirring and mixing all the materials in the ingredients.
In operation, after the discharge is complete, stirring begins and a new set of metering begins.
In the metering process, the materials with the minimum ratio can be metered first, the materials with the minimum ratio can be placed in a temporary material frame after metering, the materials are placed separately from other materials, the target metering values of the other materials are determined according to the actual target values of the materials with the minimum ratio, then the materials with the maximum ratio are placed in an aggregate and stirring module for metering, then other residual materials are placed in the aggregate and stirring module for metering, after all the materials in the ingredients are metered, the materials with the minimum ratio are discharged into the aggregate module, and the problem that the minimum materials enter the bottom of an aggregate hopper to cause insufficient mixing is avoided.
Taking the ingredient composed of the colorant 4 and the main ingredient as an example, the device for metering and discharging and the corresponding method in the above embodiment are further described, in the implementation process, the material metering port comprises the colorant metering port 2 and the main ingredient metering port 3, the colorant 4 is output from the colorant metering port 2, the main ingredient metering port 3 outputs the main ingredient 5, the colorant 4 is metered first, then the main ingredient 5 is metered, during discharging, the main ingredient 5 is discharged, then the colorant 4 is discharged, namely, the colorant 4 is metered first, then the metered colorant 4 is placed in the temporary storage material frame, then the main ingredient 5 is placed in the aggregate and stirring module for metering, after the metering is finished, the colorant 4 in the temporary storage material frame is placed in the aggregate and stirring module for mixing and stirring, thus, after the colorant 4 is metered, the metering target value of the main ingredient can be adjusted according to the metering value of the colorant 4, the precision is higher than the metering mode of the primary material 5 and the secondary pigment 4, the metering precision can be effectively ensured, the pigment 4 cannot preferentially enter a poor stirring area to cause the reduction of the mixing dispersibility during mixing, and the uneven mixing of the materials with the least occupation ratio is avoided.
Fig. 7 shows a flow chart of a specific metering process, and as can be seen from the figure, the metering process is as follows:
starting metering, namely starting metering the material with the least proportion in the ingredients, and when the material with the least proportion reaches a target metering value; judging that the metering of the material with the least proportion is finished; judging whether the actual metering value of the material with the least proportion is equal to the corresponding target metering value or not;
if the actual metering value of the material with the least proportion is equal to the corresponding target metering value, directly continuing to meter other materials; if the actual metering value of the material with the least proportion is not equal to the corresponding target metering value, judging whether the deviation of the actual metering value of the material with the least proportion currently measured is within an allowable deviation range;
if the deviation of the actual metering value of the material with the least measured proportion is not within the allowable range, performing metering exception processing and ending metering;
if the deviation of the actual metering value of the material with the least proportion is within the allowable range, the metering target values of all other materials are adjusted according to the currently measured actual metering value of the material with the least proportion, and then the metering of other materials is started;
when other materials are measured, whether the other materials reach a target measurement value is judged, when the other materials reach the corresponding target measurement value, the measurement of the currently measured materials is judged to be finished, and whether the deviation of the actual measurement value of the currently measured materials is within the deviation range is judged;
if the deviation of the actual metering value of the currently metered material is not within the deviation range, performing metering exception processing, and ending metering discharge;
if the deviation of the actual metering value of the currently metered material is within the deviation range, metering the currently metered material, and judging whether metering of all materials in the ingredients is finished or not;
if the metering of all the materials in the ingredients is finished, finishing the whole metering process; if materials which are not metered exist, the metering steps of the materials with the least proportion in the ingredients are adopted, and the remaining materials which need to be metered are continuously metered one by one; until the metering of all the materials in the ingredients is completed.
The device for metering and discharging materials comprises a metering module, a stirring module, a temporary storage module, an aggregate module and a main control module, and is matched with a corresponding method. The metering and discharging device and the corresponding method have the advantages of high metering precision, uniform stirring, excellent performance and high adaptability.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (7)
1. A device for metering discharge, said device comprising:
the metering module is used for metering different materials in the ingredients;
the temporary storage module is used for temporarily storing the materials with the least proportion in the ingredients in the metering process;
the aggregate and stirring module is used for temporarily storing other materials except the material with the least proportion in the ingredients in the metering process, and stirring and mixing the ingredients containing different materials after metering of different materials in the ingredients is finished;
the main control module is respectively connected with the metering module and the aggregate and stirring module;
the temporary storage module is arranged on the inner side of the collecting frame;
the metering module comprises a weighing unit and material metering ports corresponding to the materials in the ingredients; the weighing unit and the material metering ports are respectively connected with the main control module;
the weighing unit is arranged outside the collecting and stirring module and is connected with the collecting and stirring module; each material metering opening is arranged above the aggregate and stirring module, wherein the material metering opening corresponding to the material with the least proportion in the ingredients is arranged above the temporary storage module.
2. The device for metering discharge of claim 1, wherein the collecting and stirring module comprises a collecting frame, a stirring frame and a stirring paddle;
the aggregate frame is used for temporarily storing other materials except the material with the least proportion in the ingredients in the metering process; the bottom of the aggregate box is selectively opened under the control of the main control module, so that the ingredients are discharged from the aggregate box to the stirring frame;
the stirring paddle is connected with the main control module and used for stirring and mixing the ingredients in the stirring frame.
3. The device for metering discharge of claim 1 wherein said aggregate and agitation module comprises an aggregate agitator frame and agitator blades;
the aggregate stirring frame is divided into an aggregate area and a stirring area, the aggregate area is positioned above the stirring area, and the materials in the ingredients fall into the stirring area through the aggregate area;
the stirring paddle is positioned in the stirring area and is connected with the main control module.
4. A device for metering discharge of claim 3 wherein said buffer module is disposed inside said aggregate agitator frame at the location of the collection area in said aggregate agitator frame.
5. The metering and discharging device as claimed in claim 1 or 4, wherein the temporary storage module comprises a temporary storage frame and a push rod, and the push rod is arranged below the temporary storage frame.
6. A method of metering discharge, said method comprising the steps of:
(1) the metering module meters the material with the least proportion in the ingredients, and the material with the least proportion in the ingredients is placed in the temporary storage module for temporary storage;
(2) determining target metering values corresponding to other materials except the material with the minimum proportion in the ingredients according to the actual metering value of the material with the minimum proportion;
(3) metering other materials except the material with the minimum proportion in the ingredients, and temporarily storing the other materials except the material with the minimum proportion in the ingredients in an aggregate and stirring module;
(4) after the metering of all the materials in the ingredients is finished, discharging the materials with the minimum proportion temporarily stored in the temporary storage module into the aggregate and stirring module;
(5) stirring and mixing all the materials in the ingredients;
the temporary storage module comprises a temporary storage material frame and an ejector rod;
when the collecting and stirring module comprises a collecting frame and a stirring frame, the step (4) is as follows:
after the metering of all the materials in the ingredients is finished, removing the supporting force of the ejector rods on the temporary storage material frame, and discharging the material with the minimum proportion temporarily stored in the temporary storage material frame into the aggregate frame, so that the material with the minimum proportion in the ingredients is discharged from the bottom of the aggregate frame to the stirring frame after other materials in the ingredients are discharged from the bottom of the aggregate frame to the stirring frame, and then is discharged from the bottom of the aggregate frame to the stirring frame; or
When the collecting and stirring module comprises a collecting frame and a stirring frame, the step (4) is as follows:
after the metering of all the materials in the ingredients is finished, removing the supporting force of the ejector rods on the temporary storage material frame, so that the materials with the least proportion temporarily stored in the temporary storage material frame are discharged to the stirring frame from the bottom of the collection frame along with the materials in the collection frame; or
When the aggregate and stirring module comprises an aggregate stirring frame, the step (4) is specifically as follows:
after the metering of all the materials in the ingredients is finished, the supporting force of the ejector rod on the temporary storage material frame is removed, the material with the minimum proportion temporarily stored in the temporary storage material frame is discharged into the aggregate stirring frame, and other materials in the ingredients with the minimum proportion fall into a low-level stirring area from an aggregate area in the aggregate stirring frame, and then fall into the stirring area from the aggregate area of the aggregate stirring frame.
7. The method for metering discharge according to claim 6, wherein said step (1) comprises in particular the steps of:
(11) discharging the materials with the least proportion in the ingredients from the corresponding material metering ports to the temporary storage module;
(12) the metering module meters the materials with the minimum ratio;
(13) judging whether the actual metering value of the material with the least proportion reaches a corresponding target metering value or not;
(14) if the actual metering value of the material with the least proportion does not reach the corresponding target metering value, returning to the step (11); if the actual metering value of the material with the minimum proportion reaches the corresponding target metering value, continuing the subsequent step (2);
the step (2) specifically comprises the following steps:
(21) judging whether the actual metering value of the material with the least proportion is equal to the corresponding target metering value or not;
(22) if the actual metering value of the material with the minimum proportion is equal to the corresponding target metering value, continuing the subsequent step (23); if the actual metering value of the material with the minimum proportion is not equal to the corresponding target metering value, continuing the subsequent step (24);
(23) taking other materials except the material with the least proportion in the ingredients as corresponding target metering values preset by a corresponding system, and continuing the subsequent step (3);
(24) judging whether the deviation of the actual metering value of the material with the least proportion is within a preset system allowable range;
(25) if the deviation of the actual metering value of the material with the minimum proportion is within a preset system allowable range, continuing the subsequent step (26); if the deviation of the actual metering value of the material with the minimum proportion is not within the preset system allowable range, performing metering exception processing and finishing metering and discharging;
(26) obtaining new target metering values corresponding to other materials except the material with the least proportion in the ingredients according to the actual metering value of the material with the least proportion, taking each new target metering value as a target metering value corresponding to other materials except the material with the least proportion in the ingredients, and continuing the subsequent step (3);
the step (3) specifically comprises the following steps:
(31) discharging the materials with the largest proportion in the ingredients from the corresponding material metering ports to the aggregate and stirring module;
(32) the metering module meters the materials with the highest proportion;
(33) judging whether the actual metering value of the material with the largest proportion reaches a corresponding target metering value or not;
(34) if the actual metering value of the material with the largest proportion does not reach the corresponding target metering value, returning to the step (31); if the actual metering value of the material with the largest proportion reaches the corresponding target metering value, continuing the subsequent step (35);
(35) judging whether the deviation of the actual metering value of the material with the largest proportion is within a preset system allowable range or not;
(36) if the deviation of the actual metering value of the material with the largest proportion is within a preset system allowable range, continuing the subsequent step (37); if the deviation of the actual metering value of the material with the largest proportion is not within the preset system allowable range, performing metering exception processing and finishing metering and discharging;
(37) judging whether the metering of all the materials in the ingredients is finished or not;
(38) if the metering of all the materials in the ingredients is finished, continuing the subsequent step (4), otherwise continuing the subsequent step (39);
(39) selecting any unmetered material in the ingredients as a current metered material;
(310) discharging the current metered materials from the corresponding material metering ports to the aggregate and stirring module;
(312) the metering module meters the current metered materials;
(313) judging whether the actual metering value of the current metering material reaches a corresponding target metering value or not;
(314) if the actual metering value of the current metering material does not reach the corresponding target metering value, returning to the step (310); if the actual metering value of the current metering material reaches the corresponding target metering value, continuing the subsequent step (315);
(315) judging whether the deviation of the actual metering value of the current metering material is within a preset system allowable range or not;
(317) if the deviation of the actual metering value of the current metering material is within the preset system allowable range, returning to the step (37); and if the deviation of the actual metering value of the current metering material is not within the preset system allowable range, performing metering exception processing and finishing metering and discharging.
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