CN111562133B - Raw material acceptance sampling method - Google Patents
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- CN111562133B CN111562133B CN201910175860.1A CN201910175860A CN111562133B CN 111562133 B CN111562133 B CN 111562133B CN 201910175860 A CN201910175860 A CN 201910175860A CN 111562133 B CN111562133 B CN 111562133B
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- G01N1/00—Sampling; Preparing specimens for investigation
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Abstract
The application provides a raw material acceptance sampling method, which comprises the following steps: stacking and mixing raw materials to be checked and accepted to form a raw material stack; taking the raw material pile as an initial raw material pile; each part of the initial raw material pile is respectively grabbed for multiple times by using a first manipulator until the initial raw material pile is grabbed, and all the raw materials grabbed by any part are piled to form a first sample pile; when the weight of the first sample stack is smaller than the first preset value and larger than the second preset value, the first sample stack is taken as a current sample raw material stack; dividing a current sample raw material pile into a plurality of sampling piles by using a second manipulator, and selecting one sampling pile as a first sample unit; sampling is performed at a predetermined position of the first sample unit when the weight of the first sample unit is less than a second predetermined value. The embodiment of the application provides a raw material acceptance sampling method which can shorten acceptance time and reduce labor intensity.
Description
Technical Field
The application relates to the field of acceptance of stainless steel production raw materials, in particular to a raw material acceptance sampling method.
Background
In the supply of stainless steel production raw materials (for example, nickel cold milling), a typical supplier supplies 300 tons, 500 tons, and 1000 tons to a production side at a time. For the picking party, it is necessary to check the goods. Since the stainless steel production raw material (for example, nickel cold milling) is physically in the form of small blocks and the weight of a single block is not more than 10kg, the number of blocks is large for 300 tons, 500 tons, 1000 tons of unequal raw materials.
In the prior art, the stainless steel production raw materials are usually sampled and accepted manually. To improve acceptance quality, the greater the number of samples, the better. However, the greater the number of samples, the greater the acceptance, the greater the labor intensity of the acceptance person, and the longer the acceptance time.
Therefore, there is a need to provide a method for checking and sampling materials to overcome the above-mentioned drawbacks.
Disclosure of Invention
In view of the above, embodiments of the present application provide a method for sampling raw materials, which can ensure the quality of acceptance on the one hand, shorten the time of acceptance on the other hand, reduce the labor intensity of the inspector and improve the efficiency of acceptance.
The above object of the present application can be achieved by the following technical solutions: a method for acceptance sampling of raw materials, comprising: step 11, stacking and mixing raw materials to be checked and forming a raw material pile, wherein the weight of the raw material pile is larger than a first preset value; step 13, taking the raw material pile as an initial raw material pile; step 15, dividing the initial raw material pile into at least 3 different parts, respectively grabbing each part for multiple times by using a first manipulator until the initial raw material pile is grabbed, and piling all the raw materials grabbed by any part to form a first sample pile; wherein the weight of the raw materials grabbed by the first manipulator is approximately equal each time; step 17, judging the weight of the first sample stack; when the weight of the first sample pile is smaller than the first preset value and larger than a second preset value, the first sample pile is taken as a current sample raw pile; wherein the second predetermined value is less than the first predetermined value; step 19, dividing the current sample raw material pile into a plurality of sampling piles with approximately equal weight by using a second manipulator, and selecting one of the sampling piles as a first sample unit; step 21, judging the weight of the first sample unit; sampling is performed at a predetermined position of the first sample unit when the weight of the first sample unit is less than the second predetermined value.
As a preferred embodiment, between step 15 and step 17, further comprising:
step 160, judging the weight of the first sample stack; when the weight of the first sample stack is greater than the first predetermined value, taking the first sample stack as the initial raw material stack; and performs step 15 described above;
step 162, looping through step 160 until the weight of the first sample stack is less than the first predetermined value.
As a preferred embodiment, after step 161, before step 17, the method further comprises: the first sample stack is displaced by the second manipulator to mix the first sample stack.
As a preferred embodiment, the second manipulator is a loader.
As a preferred embodiment, between step 19 and step 21, further comprising:
step 200, judging the weight of the first sample unit; when the weight of the first sample unit is less than the first predetermined value and greater than the second predetermined value, taking the first sample unit as the current sample stock pile; and performs step 19 described above;
step 202, looping through step 200 until the weight of the first sample unit is less than the second predetermined value.
As a preferred embodiment, the first manipulator is a steel grabbing machine.
As a preferred embodiment, step 15 specifically includes:
step 151, dividing the initial raw material pile into at least 3 different parts;
step 153, respectively grabbing the raw materials at each part by using a first manipulator according to a preset grabbing sequence, and enabling the weight of the raw materials grabbed by the first manipulator to be approximately equal each time;
step 155, stacking the raw materials on any one of the parts grabbed by the first manipulator in a sample area;
step 157, cycling step 153 to step 155 until the initial stockpile is grabbed; so that all of the material grasped by the first manipulator at any one of the locations can form the first sample stack.
As a preferred embodiment, step 155 specifically includes:
after the first manipulator grabs the raw materials at any one of the positions, moving the first manipulator so that the first manipulator can be positioned right above the sample area;
and opening the first manipulator downwards so that the raw materials grabbed by the first manipulator drop downwards.
As a preferred embodiment, the step of sampling at a predetermined position of the first sample unit specifically comprises:
sampling on a first side and a second side of the first sample unit, respectively, wherein the first side and the second side are opposite in a first direction;
sampling on a third side and a fourth side of the first sample unit, respectively, wherein the third side and the fourth side are opposite in a second direction; and the first direction is perpendicular to the second direction.
As a preferred embodiment, the first predetermined value is 300 tons and the second predetermined value is 80 tons.
The raw material acceptance sampling method provided by the application has the beneficial effects that: according to the raw material acceptance sampling method, each part is respectively grabbed for multiple times by the first manipulator until the initial raw material pile is grabbed, and all the raw materials grabbed by any part are piled to form the first sample pile, so that the raw materials of the first sample pile are all the raw materials of any part of the initial raw material pile, the quality of the first sample pile can be ensured to be close to that of the initial raw material pile by selecting all the raw materials of any part as the first sample pile for sampling, and on the other hand, the first sample pile is grabbed by the first manipulator, so that compared with manual sampling, the acceptance time can be shortened, the labor intensity of acceptance personnel can be reduced, and the acceptance efficiency can be improved. Dividing a current sample raw material pile into a plurality of sampling piles with approximately equal weight by using a second manipulator, and selecting one of the sampling piles as a first sample unit; the current sample raw material pile is divided through the second manipulator, so that the checking time is further shortened, the labor intensity of checking staff is reduced, the checking efficiency is improved, one of the sampling piles is selected as a first sample unit, the quality of the first sample unit can be ensured to be close to that of the current sample raw material pile, and the quality of the current sample raw material pile is close to that of the initial raw material pile. Further, sampling is performed at a predetermined position of the first sample unit, so that the quality of the raw material obtained by final sampling can be ensured to be close to that of the first sample unit. Since the quality of the first sample unit is close to the quality of the initial stockpile, the quality of the raw material obtained by the final sampling can be the quality of the initial stockpile. Therefore, the embodiment of the application provides a raw material acceptance sampling method, which can ensure acceptance quality on one hand, shorten acceptance time on the other hand, reduce labor intensity of acceptance personnel and improve acceptance efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for raw material acceptance sampling according to an embodiment of the present application;
fig. 2 is a schematic diagram of 500 tons of raw material acceptance to be accepted according to an embodiment of the present application.
Reference numerals illustrate:
11. an initial raw material pile; 13. a first sample stack; 15. and (5) a sampling pile.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Please refer to fig. 1 and 2. The method for checking and sampling the raw materials provided by the embodiment of the application can comprise the following steps: step S11, stacking and mixing raw materials to be checked and forming a raw material pile, wherein the weight of the raw material pile is larger than a first preset value; step S13, taking the raw material pile as an initial raw material pile 11; step S15, dividing the initial raw material pile 11 into at least 3 different parts, respectively grabbing each part for multiple times by using a first manipulator until the initial raw material pile 11 is grabbed, and stacking all the raw materials grabbed by any part to form a first sample pile 13; wherein the weight of the raw materials grabbed by the first manipulator is approximately equal each time; step S17, judging the weight of the first sample stack 13; when the weight of the first sample stack 13 is less than the first predetermined value and greater than a second predetermined value, taking the first sample stack 13 as a current sample stock stack; wherein the second predetermined value is less than the first predetermined value; step S19, dividing the current sample raw material pile into a plurality of sampling piles 15 with approximately equal weight by using a second manipulator, and selecting one of the sampling piles 15 as a first sample unit; step S21, judging the weight of the first sample unit; sampling is performed at a predetermined position of the first sample unit when the weight of the first sample unit is less than the second predetermined value.
The technical scheme can be seen from the above: according to the raw material acceptance sampling method, each part is respectively grabbed for multiple times by the first manipulator until the initial raw material pile 11 is grabbed, and all the raw materials grabbed by any part are piled to form the first sample pile 13, so that the raw materials of the first sample pile 13 are all the raw materials of any part of the initial raw material pile 11, the quality of the first sample pile 13 can be ensured to be close to that of the initial raw material pile 11 by selecting all the raw materials of any part as the first sample pile 13 for sampling, and on the other hand, the first sample pile 13 is grabbed by the first manipulator, so that compared with manual sampling, the acceptance time can be shortened, the labor intensity of acceptance personnel can be reduced, and the acceptance efficiency can be improved. Dividing a current sample raw material pile into a plurality of sampling piles 15 with approximately equal weight by using a second manipulator, and selecting one of the sampling piles 15 as a first sample unit; the current sample raw material pile is divided through the second manipulator, so that the checking time can be further shortened, the labor intensity of checking staff is reduced, the checking efficiency is improved, one of the sampling piles 15 is selected as a first sample unit, the quality of the first sample unit can be ensured to be close to the quality of the current sample raw material pile, and the quality of the current sample raw material pile is close to the quality of the initial raw material pile 11, so that the quality of the first sample unit is close to the quality of the initial raw material pile 11. Further, sampling is performed at a predetermined position of the first sample unit, so that the quality of the raw material obtained by final sampling can be ensured to be close to that of the first sample unit. Since the quality of the first sample unit is close to the quality of the initial raw stock pile 11, the quality of the raw stock obtained by the final sampling can be the quality of the initial raw stock pile 11.
As shown in fig. 1, in the present embodiment, step S11: stacking and mixing the raw materials to be checked and forming a raw material pile. Wherein the weight of the stockpile is greater than a first predetermined value. Therefore, the raw materials to be checked and accepted can be mixed, so that the situation that a supplier separates the raw materials with good quality from the raw materials with poor quality is prevented, and the uniformity of the quality of the raw materials at each part of the raw material stack can be improved through mixing, so that the quality of the whole raw material stack can be obtained through the raw materials at any part. Further, the first predetermined value is 300 tons. Of course, the first predetermined value is not limited to 300 tons, and may be another value, for example, 301 tons, 302 tons, or the like, and the present application is not limited thereto.
Specifically, first, if a material to be inspected is contained in a package, the material to be inspected is first taken out from the package. Of course, if the raw materials to be checked are in bulk, the packaging bag does not need to be disassembled. If the raw materials to be checked are not only in bulk but also in bags, the bagged raw materials to be checked need to be taken out from the packaging bag and stacked on the bulk raw materials. The materials are then grasped in four directions by the grasping machine and dropped from above to mix the materials. The four orientations may be, for example, east, west, south, north. Of course, the four orientations are not limited to the east, west, south and north orientations, and may be other four orientations, and the present application is not limited thereto. Because grab the steel machine and can snatch several tens raw materials simultaneously, then open when grabbing the steel machine to when dropping down the raw materials that snatchs, the raw materials can drop down at random, thereby fall on the different positions of raw materials heap, so realize the mixture to the raw materials.
Further, when the steel grabbing machine is used for grabbing raw materials, the grabbing action of the steel grabbing machine is random and cannot be fixed. Thereby improving the balance of raw material mixing.
In the present embodiment, step S13: the stockpile is taken as an initial stockpile 11. That is, when the weight of the stockpile is greater than 300 tons, the stockpile is taken as the initial stockpile 11. For example, as shown in fig. 2, when the weight of the stockpile is 500 tons, the stockpile is taken as an initial stockpile 11. For another example, when the weight of the stockpile is 1000 tons, the stockpile is taken as an initial stockpile 11. For another example, when the weight of the stockpile is 2000 tons, the stockpile is taken as an initial stockpile 11. For another example, when the weight of the stockpile is 2000 tons, the stockpile is taken as an initial stockpile 11.
In the present embodiment, step S15: dividing the initial raw material pile 11 into at least 3 different parts, respectively grabbing each part for multiple times by using a first manipulator until the initial raw material pile 11 is grabbed, and stacking all the raw materials grabbed by any part to form a first sample pile 13; wherein the weight of the raw materials grasped by the first manipulator is approximately equal each time. The first manipulator is a steel grabbing machine. Of course, the first manipulator is not limited to a steel grabbing machine, but may be another type of device, and the application is not limited thereto.
Further, step S15: the method specifically comprises the following steps:
step S151: the initial stockpile 11 is divided into at least 3 different parts. The different locations may be different areas on the initial stockpile 11. The at least 3 different sites may be 3 sites, or may be 4 sites, or may be 5 sites. Preferably, the at least 3 different sites are 4 different sites. For example, the at least 3 different locations are the eastern, western, southern, and northern regions on the initial stock stack 11.
Step S153: the first manipulator is used for grabbing the raw materials at each part according to a preset grabbing sequence, and the weight of the raw materials grabbed by the first manipulator is approximately equal each time. The reduced stock material at each location on the initial stock pile 11 can be made approximately equal by grabbing it once at each location of the initial stock pile 11. So as to avoid the situation that the initial stockpile 11 collapses towards a certain part due to too much grabbing amount of the part.
Further, the predetermined gripping order may be a sequence of gripping the raw material at different locations. For example, the predetermined grasping sequence is: west, south, east, north. I.e. first in the region facing west. Then grabbing is performed on the area facing the south. Then grabbing is performed on the eastern-oriented area. Finally, the gripping is carried out on the area facing north.
Further, the first manipulator is used to grasp the initial stockpile 11 at least 3 different positions in a predetermined grasping order, respectively. For example, when the predetermined grasping order is: the steps of the method are specifically as follows: first grasp once on the area facing west. And then grabbed once on the area facing south. Then grasp once on the eastern-oriented region. Finally, the hand is grasped once in the area facing north.
Step S155: and stacking the raw materials on any part grabbed by the first manipulator in the sample area. The arbitrary portion may be any one of the areas on the initial raw material pile 11 where gripping is performed. For example, the at least 3 different locations are the eastern, western, southern, and northern regions on the initial stock stack 11. Then either location may be an eastern facing region; or may be a region facing the west; or may be a region facing south; or may be a region facing north. But it is worth noting that any one of the sites can only be an eastern-oriented region; a region facing west; a region facing south; one of the areas facing north. For example, the material on the region facing south grasped by the first manipulator is selected to be deposited on the sample region.
Further, when the first manipulator grips once at least 3 different positions of the initial raw material stack 11, respectively, the raw material gripped at one position is taken as a sample, and the raw materials gripped at all other positions are taken as goods. For example, the at least 3 different positions are the eastern, western, southern, and northern regions on the initial stock stack 11, and the stock grasped by the first hand is selected to be deposited on the sample region, for example, the stock grasped by the first hand on the southern region serves as the sample, and the stock grasped by the first hand on the eastern, western, and northern regions serves as the article.
Further, step S155 specifically includes:
step S1551: after the first manipulator grabs the raw material at any one position, the first manipulator is moved so that the first manipulator can be located right above the sample area. I.e. on the one hand the sample area is spaced from the stockpile so that the raw material in the stockpile can be taken out. On the other hand, the first manipulator is positioned right above the sample area, so that the raw materials grabbed by the first manipulator fall down from a high place.
Step S1553: the first manipulator is opened downwards so that the raw materials grabbed by the first manipulator drop downwards. Thereby stacking the material grasped by the first manipulator in the sample area. Because grab the steel machine and can snatch several tens raw materials simultaneously, then open when grabbing the steel machine to with the raw materials that snatchs down from the eminence, the raw materials can drop down at random, thereby fall on the different positions of sample district, so realize the mixture to the raw materials in the sample district.
Step S157: cycling steps 153 to 155 until the initial stockpile 11 is grabbed; so that all of the material grasped by the first manipulator at any one location can form a first sample stack 13. For example, the at least 3 different locations are the eastern, western, southern, and northern regions on the initial stock stack 11. The predetermined grabbing sequence is as follows: west, south, east, north. And selecting the raw materials on the region facing the south, which is grasped by the first manipulator, to be accumulated in the sample region. Step 157 is: first, the first hand is grasped once in the western-oriented area. And then grabbed once on the area facing south. Then grasp once on the eastern-oriented region. Finally, the initial stock pile 11 is gripped in one round in the sequence of one gripping operation on the area facing north. And accumulating the raw material on the region facing the south grasped in the one round of grasping process in the sample region. Second, again by first grabbing once on the area facing west. And then grabbed once on the area facing south. Then grasp once on the eastern-oriented region. Finally, the initial stock pile 11 is gripped in one round in the sequence of one gripping operation on the area facing north. And accumulating the raw material on the region facing the south grasped in the one round of grasping process in the sample region. This is repeated until the initial stockpile 11 is gripped.
Further, step 155 may be completed during the process performed in step 153. I.e. the material gripped in the region facing south during one round of gripping is deposited on the sample area, in particular may be gripped once in the region facing west first. And accumulate the stock material on the western-facing region in the article region. This is then grasped once over the area facing south. And accumulating the raw material on the region facing south in the sample region. Then grasp once on the eastern-oriented region. And accumulating the raw material on the eastern facing region in the article region. Finally, the initial stock pile 11 is gripped in one round in the sequence of one gripping operation on the area facing north. And accumulating the stock material on the north-facing region in the article area. By completing step 155 during the process performed at step 153. The time for checking and accepting can be further shortened, the labor intensity of checking and accepting personnel is reduced, and the checking and accepting efficiency is improved.
In the present embodiment, step S17: judging the weight of the first sample stack 13; when the weight of the first sample stack 13 is less than the first predetermined value and greater than the second predetermined value, taking the first sample stack 13 as a current sample stock stack; wherein the second predetermined value is less than the first predetermined value. The second predetermined value is 80 tons. Of course, the second predetermined value is not limited to 80 tons, and may be another value, for example, 81 tons, 82 tons, or the like, and the present application is not limited thereto.
Further, in step S17, for example, when the weight of the first sample stack 13 is 250 tons, the first sample stack 13 is taken as the current sample stock stack since the 250 tons are smaller than the first predetermined value (300 tons) and larger than the second predetermined value (80 tons).
Further, between step 15 and step 17, further includes:
step 160, judging the weight of the first sample stack 13; when the weight of the first sample stack 13 is greater than the first predetermined value, taking the first sample stack 13 as the initial raw material stack 11; and performs step 15 described above.
Step 162, looping through step 160 until the weight of the first sample stack 13 is less than the first predetermined value.
Specifically, as shown in fig. 2 and table 1, when the raw material pile is 2000 tons, the first sample pile 13 formed after step 13 (dividing the initial raw material pile 11 into 4 different parts) and step 15 is 2000 tons, namely 500 tons. Since the weight of the 500 ton first sample stack 13 is still greater than the first predetermined value (300 tons), then the 500 ton first sample stack 13 is taken as the initial raw stock stack 11; dividing the 500 ton initial raw material pile 11 into 4 different parts, respectively grabbing each part for multiple times by using a first manipulator until the initial raw material pile 11 is grabbed, and stacking the raw materials grabbed by any part to form a first sample pile 13; wherein the weight of the raw materials grasped by the first manipulator is approximately equal each time. Thus a first sample stack 13 of 500 tons, i.e. 125 tons, is obtained. Since the 125 tons is smaller than the first predetermined value (300 tons), the loop execution step 160 is stopped. Step S17 is performed.
In one embodiment, step S19: the current sample raw material pile is divided into a plurality of sampling piles 15 with approximately equal weight by a second manipulator, and one of the sampling piles 15 is selected as a first sample unit. Specifically, the second manipulator is a loader. Of course, the second manipulator is not limited to a loader, but may be another type of device, and the present application is not limited thereto. Since the weight of the first sample stack 13 is smaller than the first predetermined value after the steps S15 to S17, the weight of the first sample stack 13 is light, so that the division of the first sample stack 13 into the plurality of sample stacks 15 can be completed by the loader. Specifically, the first sample stack 13 is divided into a plurality of sample stacks 15 by pushing one or more sides of the first sample stack 13 by a loader. The plurality of sample stacks may be 2 sample stacks or 3 sample stacks. The application is not limited in this regard. Preferably, the sample stack is 2 sample stacks. By using one of the sample stacks as the first sample unit, the quality of the raw material of the first sample unit can be made close to the quality of the first sample stack 13.
Specifically, as shown in table 1, when the raw material pile is 1000 tons, the first sample pile 13 formed after step S13 (dividing the initial raw material pile 11 into 4 different parts) and step S15 is 1000 tons, namely 250 tons. Since the 250 tons is smaller than the first predetermined value (300 tons) and larger than the second predetermined value (80 tons), the first sample stack 13 is taken as the current sample stock stack; the 250 tons of current sample stock pile is divided by a second manipulator into two sampling piles 15 of approximately equal weight, one of the sampling piles 15 being selected as the first sample unit. Wherein the weight of the raw materials grasped by the first manipulator is approximately equal each time. Thus, a first sample unit of 250 tons, i.e. 125 tons, is obtained.
| Weight of stockpile | 1/4 | 1/4 | 1/2 | 1/2 | Four small stacks |
| 300 ton | - | - | 150 tons | 75 tons | 18 tons 4 |
| 500 ton | - | 125 tons | 63 ton | - | 15 tons of 4 |
| 1000 tons | - | 250 tons | 125 tons | 63 ton | 15 tons of 4 |
| 2000 tons | 500 ton | 125 tons | 63 ton | - | 15 tons of 4 |
TABLE 1
Further, as shown in fig. 2 and table 1, when the raw material pile is 500 tons, the first sample pile 13 formed after step S15 is 500 tons, namely 125 tons, after step S13 (dividing the initial raw material pile 11 into 4 different parts). Since the 125 tons is smaller than the first predetermined value (300 tons) and larger than the second predetermined value (80 tons), the first sample stack 13 is taken as the current sample stock stack; the current 125 ton sample stock pile is divided into two sampling piles 15 with approximately equal weight by a second manipulator, and one of the sampling piles 15 is selected as a first sample unit. Wherein the weight of the raw materials grasped by the first manipulator is approximately equal each time. Thus, a first sample unit of 125 tons, i.e. 63 tons, is obtained.
In the present embodiment, step S21: judging the weight of the first sample unit; sampling is performed at a predetermined position of the first sample unit when the weight of the first sample unit is less than a second predetermined value. So that a sample representing the quality of the first sample unit can be obtained by sampling at a predetermined position of the first sample unit.
Further, step S21: sampling at a predetermined position of the first sample unit, specifically including:
step S211: sampling is performed on a first side and a second side of the first sample unit, respectively, wherein the first side and the second side are opposite in a first direction. For example, the first direction is a north-south direction. The first side and the second side are then respectively one between the south side and the north side of the first sample unit.
Step S213: sampling on a third side and a fourth side of the first sample unit, respectively, wherein the third side and the fourth side are opposite in a second direction; and the first direction is perpendicular to the second direction. For example, the second direction is the east-west direction. The third side and the fourth side are then respectively one between the east side and the west side of the first sample unit. Thus, by sampling the east, west, south and north sides of the first sample unit, four small stacks representing the first sample unit can be obtained for acceptance by the acceptance person. Because the acceptance personnel only need to accept four small piles, the acceptance time can be shortened, the labor intensity of the acceptance personnel is reduced, and the acceptance efficiency is improved.
Specifically, as shown in fig. 2 and table 1, in step S21, when the raw material pile is 500 tons, the first sample pile 13 formed after step S15 is 500 tons, namely 125 tons, after step S13 (dividing the initial raw material pile 11 into 4 different parts). Since the 125 tons is smaller than the first predetermined value (300 tons) and larger than the second predetermined value (80 tons), the first sample stack 13 is taken as the current sample stock stack; the current 125 ton sample stock pile is divided into two sampling piles 15 with approximately equal weight by a second manipulator, and one of the sampling piles 15 is selected as a first sample unit. Wherein the weight of the raw materials grasped by the first manipulator is approximately equal each time. Thus, a first sample unit of 125 tons, i.e. 63 tons, is obtained. The weight of the 63 ton first sample unit is less than a second predetermined value (80 ton), and sampling is performed at a predetermined position of the first sample unit.
Further, between step 19 and step 21, further includes:
step 200, judging the weight of the first sample unit; when the weight of the first sample unit is less than the first predetermined value and greater than the second predetermined value, taking the first sample unit as the current sample stock pile; and performs step 19 described above;
step 202, looping through step 200 until the weight of the first sample unit is less than the second predetermined value.
Specifically, as shown in table 1, when the raw material pile is 1000 tons, the first sample pile 13 formed after step 13 (dividing the initial raw material pile 11 into 4 different parts) and step 15 is 1000 tons, namely 250 tons. Since the 250 tons is smaller than the first predetermined value (300 tons) and larger than the second predetermined value (80 tons), the first sample stack 13 of 250 tons is taken as the current sample stock stack; the 250 tons of current sample stock pile is divided by a second manipulator into two sampling piles 15 of approximately equal weight, one of the sampling piles 15 being selected as the first sample unit. Wherein the weight of the raw materials grasped by the first manipulator is approximately equal each time. Thus, a first sample unit of 250 tons, i.e. 125 tons, is obtained. When the weight of the 125 tons of the first sample unit is smaller than the first predetermined value (300 tons) and larger than the second predetermined value (80 tons), step 200 is circularly executed, namely, the 125 tons of the first sample unit is taken as a current sample raw material pile, the 125 tons of the current sample raw material pile is divided into two sampling piles 15 with approximately equal weight by using a second manipulator, and one of the sampling piles 15 is selected as the first sample unit. Wherein the weight of the raw materials grasped by the first manipulator is approximately equal each time. Thus, a first sample unit of 125 tons, i.e. 63 tons, is obtained.
Further, after step 161, before step 17, the method further includes: the first sample stack 13 is displaced by the second manipulator to mix the first sample stack 13. Specifically, the first sample stack 13 is displaced by the second manipulator, i.e. the first sample stack 13 is moved from one position to another by the second manipulator. In the process of moving the raw materials from one position to another position by the loader, the loader needs to be opened above the other position to drop the grabbed raw materials downwards, so that the raw materials can drop downwards randomly and then fall on different positions of the other position, and the mixing of the raw materials is realized.
Further, the method for checking and sampling raw materials according to the embodiment of the application further comprises the following steps: and step 23, stacking and mixing the raw materials to be checked and forming a raw material pile, wherein the weight of the raw material pile is not more than a first preset value. Step 25, when the weight of the raw material pile is smaller than the first preset value and larger than the second preset value, taking the raw material pile as a raw material pile of a current sample; wherein the second predetermined value is less than the first predetermined value; step 27, dividing the current sample raw material pile into a plurality of sampling piles 15 with approximately equal weight by using a second manipulator, and selecting one of the sampling piles 15 as a first sample unit; step 29, judging the weight of the first sample unit; when the weight of the first sample unit is less than the first predetermined value and greater than the second predetermined value, taking the first sample unit as the current sample stock pile; and performs step 27 described above; step 31, performing step 200 in a loop until the weight of the first sample unit is less than the second predetermined value; and step 33, sampling at a preset position of the first sample unit when the weight of the first sample unit is smaller than the second preset value.
In this embodiment, step 23, stacking and mixing the raw materials to be checked and forming a raw material pile, wherein the weight of the raw material pile is not greater than a first predetermined value. The first predetermined value is 300 tons. Of course, the first predetermined value is not limited to 300 tons, and may be another value, for example, 301 tons, 302 tons, or the like, and the present application is not limited thereto. For example, as shown in table 1, the weight of the stockpile is 300 tons.
In this embodiment, step 25, when the weight of the raw material pile is smaller than the first predetermined value and larger than the second predetermined value, taking the raw material pile as the current sample raw material; wherein the second predetermined value is less than the first predetermined value. The second predetermined value is 80 tons. Of course, the first predetermined value is not limited to 80 tons, and may be another value, for example, 81 tons, 82 tons, or the like, and the present application is not limited thereto.
In this embodiment, in step 27, the current raw sample pile is divided into a plurality of sampling piles 15 with substantially equal weight by using a second manipulator, and one of the sampling piles 15 is selected as the first sample unit.
In this embodiment, step 29, determining the weight of the first sample unit; when the weight of the first sample unit is greater than the second predetermined value, taking the first sample unit as the current sample stock pile; and performs step 27 described above;
in this embodiment, step 31, step 200 is performed in a loop until the weight of the first sample unit is less than the second predetermined value;
in this embodiment, step 33, sampling is performed at a predetermined position of the first sample unit when the weight of the first sample unit is less than the second predetermined value.
For example, as shown in table 1, when the raw material pile is 300 tons, the current sample raw material pile of 300 tons is divided into two sampling piles 15 having approximately equal weights by the second robot, and one of the sampling piles 15 is selected as the first sample unit. Wherein the weight of the raw materials grasped by the first manipulator is approximately equal each time. Thus, a 300 ton half, i.e. 150 ton, first sample unit is obtained. The weight of the 150 ton first sample unit is greater than a second predetermined value (80 tons), and the 150 ton first sample unit is taken as a current sample stock pile. The 150 ton current sample raw material stack is divided into two sampling stacks 15 with approximately equal weight by a second manipulator, and one of the sampling stacks 15 is selected as a first sample unit. Wherein the weight of the raw materials grasped by the first manipulator is approximately equal each time. Thus, a first sample unit of 150 tons, i.e. 75 tons, is obtained. Since the weight of the 75 tons of the first sample unit is smaller than the second predetermined value (80 tons), the sampling is performed at a predetermined position of the 75 tons of the first sample unit. The predetermined locations may be four locations on the south side, north side, west side, and east side. Thus obtaining 4 stacks.
It should be noted that, in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and to distinguish between similar objects, and there is no order of preference between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the application, and is not meant to limit the scope of the application, but to limit the application to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the application are intended to be included within the scope of the application.
Claims (7)
1. The method for checking, accepting and sampling the raw materials is characterized by comprising the following steps:
step 11, stacking and mixing raw materials to be checked and forming a raw material pile, wherein the weight of the raw material pile is larger than a first preset value;
step 13, taking the raw material pile as an initial raw material pile;
step 15, dividing the initial raw material pile into at least 3 different parts, respectively grabbing each part for multiple times by using a first manipulator until the initial raw material pile is grabbed, and piling all the raw materials grabbed by any part to form a first sample pile; wherein the weight of the raw materials grabbed by the first manipulator is approximately equal each time;
step 15, specifically includes:
step 151, dividing the initial raw material pile into at least 3 different parts;
step 153, respectively grabbing the raw materials at each part by using a first manipulator according to a preset grabbing sequence, and enabling the weight of the raw materials grabbed by the first manipulator to be approximately equal each time;
step 155, stacking the raw materials on any one of the parts grabbed by the first manipulator in a sample area;
step 157, cycling step 153 to step 155 until the initial stockpile is grabbed; so that all the materials grasped by the first manipulator at any one of the positions can form the first sample stack;
step 160, judging the weight of the first sample stack; when the weight of the first sample stack is greater than the first predetermined value, taking the first sample stack as the initial raw material stack; and performs step 15 described above;
step 162, looping through step 160 until the weight of the first sample stack is less than the first predetermined value;
step 17, judging the weight of the first sample stack; when the weight of the first sample pile is smaller than the first preset value and larger than a second preset value, the first sample pile is taken as a current sample raw pile; wherein the second predetermined value is less than the first predetermined value;
step 19, dividing the current sample raw material pile into a plurality of sampling piles with approximately equal weight by using a second manipulator, and selecting one of the sampling piles as a first sample unit;
step 200, judging the weight of the first sample unit; when the weight of the first sample unit is less than the first predetermined value and greater than the second predetermined value, taking the first sample unit as the current sample stock pile; and performs step 19 described above;
step 202, circularly performing step 200 until the weight of the first sample unit is less than the second predetermined value;
step 21, judging the weight of the first sample unit; sampling is performed at a predetermined position of the first sample unit when the weight of the first sample unit is less than the second predetermined value.
2. The method of raw material acceptance sampling of claim 1, further comprising, after step 162, before step 17: the first sample stack is displaced by the second manipulator to mix the first sample stack.
3. The raw material acceptance sampling method according to claim 1 or 2, wherein: the second manipulator is a loader.
4. The method for acceptance sampling of materials of claim 1, wherein: the first manipulator is a steel grabbing machine.
5. The method for acceptance sampling of materials of claim 1, wherein: step 155 specifically includes:
after the first manipulator grabs the raw materials at any one of the positions, moving the first manipulator so that the first manipulator can be positioned right above the sample area;
and opening the first manipulator downwards so that the raw materials grabbed by the first manipulator drop downwards.
6. The method of claim 1, wherein step 21 samples at predetermined locations of the first sample unit, and comprises:
sampling on a first side and a second side of the first sample unit, respectively, wherein the first side and the second side are opposite in a first direction;
sampling on a third side and a fourth side of the first sample unit, respectively, wherein the third side and the fourth side are opposite in a second direction; and the first direction is perpendicular to the second direction.
7. The method for acceptance sampling of materials of claim 1, wherein: the first predetermined value is 300 tons and the second predetermined value is 80 tons.
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