CN106743405B - Quantitative on-demand distribution method and device for discrete articles and compensation distribution method - Google Patents
Quantitative on-demand distribution method and device for discrete articles and compensation distribution method Download PDFInfo
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- CN106743405B CN106743405B CN201710057363.2A CN201710057363A CN106743405B CN 106743405 B CN106743405 B CN 106743405B CN 201710057363 A CN201710057363 A CN 201710057363A CN 106743405 B CN106743405 B CN 106743405B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/26—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles
- B65G47/28—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles during transit by a single conveyor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/34—Devices for discharging articles or materials from conveyor
- B65G47/46—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points
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Abstract
A quantitative demand-based distribution method for discrete articles comprises the steps that firstly, a feeder supplies articles to a first conveyor, the first conveyor divides the articles into at least one article row distributed in a single layer and outputs the articles to a second conveyor, secondly, the articles in each article row fall into a counting grid of the corresponding row on the surface of the second conveyor after being output by the first conveyor, and thirdly, the articles in the counting grid are accurately counted; and step four, distributing the articles in the counting cells to a storage according to the required number. The invention divides the articles into a plurality of article columns on the surface of the first conveyor through the first conveyor, individually outputs the articles to the counting cells on the surface of the second conveyor, controls the articles in the counting cells to be only one or zero, and can know the accurate number of the articles output from the second conveyor after moving a section of counting cells through the accurate counting of the counting mechanism.
Description
Technical Field
The invention belongs to the technical field of discrete type article quantitative distribution, and particularly relates to a method and a device for quantitatively distributing discrete type articles as required and a compensation distribution method.
Background
The technique of dispensing discrete articles in a metered quantity is widely used in the field of packaging of articles such as tablets, sweets, seeds, parts, etc. The distribution technology has a mechanical, photoelectric multi-channel and vision whole-pile counting method, the vision method is a breakthrough of the digital technology in recent years, and the functions, the capacity and the volume of the equipment are greatly optimized through the characteristics of the resolution of a vision system, remote image taking, whole-pile counting of articles and the like. In the visual particle counting technology, a target number is obtained by a complementary difference counting method, wherein the target number is obtained by randomly distributing a first distribution quantity and then distributing a smaller complementary difference quantity; there are also a logical distribution method in which a target amount is obtained by counting the whole stack, then temporarily storing the stacks, and combining the temporarily stored stacks, and a counting division method in which counting divisions are provided on a conveyor so that the articles form small stacks therein, the small stacks are counted, and the small stacks are combined to obtain the target amount or a number close to the target amount at the time of output.
However, in the above dispensing method, the target quantity to be dispensed is a fixed quantity, and in practical applications, the target quantity may be changed according to the requirement, and the dispensing technology of the target quantity changed according to the requirement may be applied to an automatic formula system, a personalized product packaging system, or a compensating type quantitative dispensing system as a compensating mechanism. However, the prior art does not provide a practical and efficient solution when the target number is varied on demand.
In the mechanical distribution method, the articles are first dropped into a template, which is set according to the target number and article size, and cannot be changed. Several of the above-mentioned techniques of counting visually involve stacking and counting articles by an approximate number, and this approximate number cannot meet a target number which varies arbitrarily, especially when the target number varies by a small number value (e.g., 1-10). For example, in the counting cell method described above, the articles are counted after falling into the counting cells on the conveyor and the target number or a number close to the target is obtained by a combination method when leaving the conveyor, and the number of articles in the counting cells is random, so that it is impossible to satisfy the number requirement of 3 articles at any time (when there is no number value of 1 and 3 in the counting cells) regardless of the combination. In the multi-channel photoelectric counting method, articles are independently and individually counted when falling through a plurality of single-row channels, when the accumulated quantity reaches a target quantity, the articles are separated by a gate below each channel to obtain the target quantity, in principle, because the articles are counted individually, the method can meet the requirement of randomly changing the target quantity, but because the articles need to be output through a vibrating conveyor, after the target quantity is reached, the gate is closed, and the conveyor stops, but the articles continue to fall due to inertia, are counted and temporarily stored on the gate to be used for next distribution, and if the target quantity required next time is smaller than the temporarily stored quantity on the gate, the next distribution quantity cannot be realized. Therefore, in order to reduce the overflow of the number of buffers, the conveyor speed can only be reduced, so that the number of possible buffers is not greater than 1, which also reduces the throughput of the whole system. Meanwhile, since the counting of articles and the action of the gate occur continuously, that is, when the photoelectric sensor sees the last article of the target number, the gate needs to act instantaneously to separate the next article, and when the response of the gate is delayed slightly, the articles can be injured or counting errors can be generated. In the above-mentioned offset counting method, after obtaining a random initial allocation number, it is necessary to reallocate an offset number to reach the target number, and the offset number is an arbitrarily changed target number, and the variation range is a small number value, so that the offset function is often a capacity bottleneck of the offset counting technique.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a distribution method and a distribution device which are high in distribution efficiency and can output the quantity of articles with any required quantity.
Another object of the present invention is to provide a complementary difference allocation method using the on-demand allocation method with high allocation efficiency,
the technical scheme of the invention is as follows:
a quantitative on-demand distribution method for discrete articles,
firstly, a feeder is connected with articles to a first conveyor, the first conveyor divides the articles into at least one article row distributed in a single layer and outputs the articles to a second conveyor,
step two, the second conveyor is provided with a row of counting cells corresponding to each article row, the articles in each article row fall into the counting cells of the corresponding row on the surface of the second conveyor after being output by the first conveyor, and the number of the articles in each counting cell is 1 or 0;
thirdly, accurately counting the articles in the counting cells on the surface of the second conveyor;
and step four, the second conveyor outputs the articles, and the articles in the counting cells are distributed to the storage according to the required quantity. .
In the fourth step, when the articles in a row of counting cells which are transversely arranged side by side in different counting cell rows are output and the articles in one or more counting cells in the row are not distributed to the storage, the articles in the counting cells are output and independently temporarily stored, and the temporarily stored articles are distributed to a new storage in preference to the articles in a new row of counting cells.
In the fourth step, the articles are collected by at least two storage containers, and the articles in each counting compartment are conveyed to the assigned storage container in a split manner.
In the fourth step, the articles are collected by at least two storage containers, the articles in the counting cells of each row are conveyed to the assigned storage container in a shunting manner, and the articles in the counting cells are rejected when the articles in the counting cells are not assigned to the storage container.
Another object of the present invention is to provide a method for compensating allocation using the on-demand allocation method, which is implemented by the following steps:
the method comprises the steps that firstly, a first distribution quantity lower than a target quantity is obtained by a storage, then the quantity of the articles with the difference between the first distribution quantity and the target quantity is obtained through calculation, a required quantity is generated corresponding to the storage, and finally the articles with the required quantity are output to the corresponding storage.
A method and apparatus for quantitatively and on-demand distributing discrete articles includes
A feeder supplying articles to the first conveyor;
the first conveyor divides the articles into at least one article column distributed in a single layer and conveys the articles to the second conveyor;
the surface of the second conveyor is provided with counting cells distributed in a matrix form, and each row of counting cells is arranged corresponding to one article row;
the counting mechanism is used for accurately counting the articles in the counting cells on the surface of the second conveyor;
a central processor for distributing the articles in the counting cells to the storage according to the required number of the storage
And the storage device is used for collecting the articles in the counting cell.
The first conveyor divides the articles into at least two article rows distributed in a single layer, the second conveyor is correspondingly provided with counting cells, the device further comprises a collector and a gate, the gate is arranged corresponding to each row of counting cells, the central processing unit controls the gate to be opened or closed, the articles are controlled to enter the collector through the gate or temporarily stored in the gate, and the collector outputs the articles to the storage.
The device is provided with a flow dividing mechanism and at least two collectors, wherein the flow dividing mechanism comprises a flow dividing channel group arranged corresponding to each row of counting cells, the flow dividing channel group is provided with a flow dividing channel arranged corresponding to the collectors, and each collector outputs to one storage.
The temporary storage mechanism comprises a gate and a conveying passage, wherein the gate corresponds to each row of counting cells, the conveying passage conveys articles to the storage, and the central processing unit controls the gate to be opened or closed so as to convey the articles into the conveying passage or temporarily store the articles.
The distribution mechanism comprises a distribution channel group which is arranged corresponding to each gate, the central processing unit controls the gates to be opened or closed so as to send articles into the distribution channel group or temporarily store the articles, the distribution channel group is provided with a distribution channel which is arranged corresponding to each collector, and the central processing unit controls the distribution channels to output the articles to the collectors corresponding to the distributed storages.
The counting mechanism comprises an image capturing mechanism, the image capturing mechanism is arranged above the second conveyor and is used for capturing images of the counting cells of the second conveyor and transmitting the images to the central processing unit for identification and counting.
The invention has the advantages of
The invention sends the articles distributed in a single row on the first conveyor to a second conveyor with counting cells, and then the second conveyor outputs the required number of articles to a storage device, and the conveying frequency of the second conveyor is higher than that of the articles output from the first conveyor, such as: the output frequency of the first conveyor is 6 to 8 per second, while the conveying frequency of the second conveyor can be set to 10 bins per second. Thus, each counting cell on the second conveyor receives only one article or no articles. The control system knows whether there is an article in each counting cell on the second conveyor by a counting method, such as electric eye or image capture. The speed, start and stop positions of the second conveyor can be controlled rapidly and accurately by the drive of a servo motor or a stepping motor. The target quantity of articles with any value can be integrated by outputting the articles in a plurality of counting cells, for example, when a required quantity N is distributed as required, the second conveyor is controlled to move forwards only by a section of counting cell which just contains N articles, the second conveyor outputs the required N articles, and simultaneously the first conveyor and the second conveyor are controlled to synchronously act, so that new articles can be supplemented on the second conveyor. Of course, since the second conveyor outputs a row of articles for every pass, then there may be more than the desired articles in the same row being output when the nth article is output by the second conveyor, and the present invention proposes three methods: the method includes the steps of (a) using a gate to temporarily store the excess articles for next dispensing, (b) using more than one storage device to receive articles simultaneously and using a diversion mechanism to divert the excess articles to another container, and (c) rejecting the excess articles. However, because the time of the articles is ordered when the articles are output in the counting cells and the distribution of the articles on the second conveyor is determined before the articles are output, the system can have sufficient time to control the actions of the gate and the flow dividing mechanism, so that the mechanical actions can be performed orderly and accurately, and the impact caused by sudden and high-speed mechanical actions and the possibility of errors caused by action delay are avoided.
Although the articles are arranged and output on the conveyor in a single row in the prior art, the output time of each article is provided with certain randomness, which is also an uncontrollable factor in the prior art, the invention uses the counting cells of the second conveyor and ensures that the articles output from the first conveyor can only have one or zero falling counting cells on the second conveyor by a speed difference method, thus converting the problem of controlling the article counting into the problem of controlling the movement of the counting cells, any required number can be obtained by controlling the movement of a certain number of counting cells, and the movement of the counting cells is an absolutely controllable movement, thus achieving the effect of accurately controlling the number of the articles output by the second conveyor. At the same time, it also allows the first conveyor to output articles more quickly without regard to the proximity of the distance between the articles.
By counting the articles in the counting cells on the second conveyor, the distribution state of the articles on the second conveyor is known, and the number of counting cells which are required by the conveyor to output the required number of articles is also known in advance, so that the starting and stopping of the conveyor and the actions of the gate and the flow dividing mechanism can be controlled by sufficient time, the impact caused by sudden stopping and starting is avoided, and the impact caused by the fact that the gate needs to make a quick response when a photoelectric sensor detects the last one of the required number in the prior art and the counting error possibly caused by the untimely response are also avoided.
Drawings
FIG. 1 is a schematic diagram of a single container on demand dispensing configuration of the present invention
Fig. 2 is a schematic diagram of the dual container on demand dispensing of the present invention.
FIG. 3 is a schematic diagram of the structure of a single vessel feeding format of the present invention.
FIG. 4 is a schematic diagram of the structure of the dual vessel feeding format of the present invention
1-feeder, 2-first conveyor, 3-second conveyor, 4-counting mechanism, 5-shunt mechanism, 6-storage, 7-counting box, 8-collector, 9-gate and 10-shunt channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A quantitative on-demand distribution method for discrete articles, as shown in figures 1 and 2,
step one, a feeder 1 continuously supplies articles to a first conveyor 2, the first conveyor 2 divides the articles into at least one article row distributed in a single layer and outputs the article row to a second conveyor 3,
step two, the second conveyor 3 is provided with a row of counting cells 7 corresponding to each article row, articles in each article row fall into the counting cells 7 of the row corresponding to the surface of the second conveyor 3 after being output by the first conveyor 2, and the number of the articles in each counting cell 7 is 1 or 0;
thirdly, accurately counting the articles in the counting cells 7 on the surface of the second conveyor 3;
step four, distributing the articles in the counting compartment 7 to the storage 6 according to the required number.
The invention divides the articles into a plurality of article columns on the surface of the first conveyor 2 through the first conveyor 2, the article columns refer to that the articles are arranged in a form of queue, the article columns are not overlapped, the article columns can be designed to be single articles output and are matched with the second conveyor 3, the counting grid moving frequency of the second conveyor 3 is the conveying frequency of the first conveyor 2, the articles of the first conveyor 2 can fall into the counting grids 7 of the second conveyor 3, each counting grid 7 only receives one or zero articles, the counting grids 7 are arranged according to a matrix mode, each column of counting grids 7 is arranged corresponding to the article column to receive the articles output by the first conveyor 2, the number of the articles of the counting grids 7 is controlled to be not more than 1, the accurate number of the articles output after the second conveyor 3 moves a section of counting grid can be known through the accurate counting of the counting mechanism 4, namely, the second conveyor 3 moves a section of the counting grids 7 according to the required number, the articles can be distributed to any required number, and the articles can be distributed by a user when the required number is met.
Compared with the prior art that random quantity is output and then is summed, the quantity of the articles in the counting cells 7 output by the counting cell is random and uncontrolled, when a random quantity demand is met, a large number of article piles of the counting cells 7 which cannot be distributed are inevitably generated, and the distribution efficiency is low.
In the fourth step, when the articles in each row of counting cells 7 are output and the articles in one or more than one counting cell 7 in the row are not distributed to the storage 6, the articles in the counting cell 7 are output and are independently temporarily stored, and the temporarily stored articles are distributed to a new storage 6 in preference to the articles in the new row of counting cells 7.
Specifically, when the articles in each row of counting cells 7 are output, the counting cells 7 may be allocated to different groups, and the temporary storage method can output and temporarily store the articles in the counting cells 7 and allocate the articles to the next required amount of storage 6, thereby increasing the distribution efficiency.
In the fourth step, the articles are collected by at least two storage containers 6, and the articles of each counting cell 7 are conveyed in a branched manner to the storage container 6 to which they are assigned.
Specifically, the distribution efficiency can be increased by two or more than two storage devices 6, that is, two demands occur at the same time, and the articles in the counting cells 7 can be distributed to different storage devices 6 in a shunting manner when being output, so that the two storage devices 6 can be distributed at the same time, and the distribution efficiency is greatly improved.
In the fourth step, the articles are collected by at least two storage containers 6, the articles in the counting cells 7 of each row are conveyed to the assigned storage container 6 by means of a shunt, and the articles in the counting cells 7 are rejected when the articles in the counting cells 7 are not assigned to the storage container 6.
Specifically, in the production process, when the articles in each row of counting cells 7 are output, the quantity of the output articles exceeds the required quantity correspondingly generated by two or more storage devices 6, the invention can reject the articles in the counting cells 7 by the method so as to meet the continuous production, and no article accumulation is generated, wherein the article accumulation means that when the articles in the row of counting cells cannot be distributed to one storage device 6 and the conveyor is continuously output, the probability that the articles can be distributed to the storage devices 6 is smaller when the quantity of the articles output by the row of counting cells 7 is larger until a huge number is generated, so that the articles cannot be distributed, and therefore, the continuous movement of the conveyor can be ensured, the materials are continuously supplied, and the distribution efficiency is improved by the rejecting method.
Example 2
As shown in figures 3 and 4 of the drawings,
another object of the present invention is to provide a method for compensating allocation using the on-demand allocation method, which is implemented by the following steps:
the method according to the invention according to any shifted demand can be used for feeding as follows:
firstly, the storage 6 obtains the first distribution quantity which is lower than the target quantity, then the quantity of the articles with the difference between the first distribution quantity and the target quantity is calculated, a required quantity is generated corresponding to the storage 6, and finally the articles with the required quantity are output to the corresponding storage 6.
Since the first dispensing amount is random in the current precise counting method, that is, the required amount of the replenishment material is also random, that is, when the reservoir 6 receives the first dispensing amount, a demand amount is obtained, which is random in the continuous production process, for example, the target number of the production line is 100, the first dispensing amount obtained by the continuous reservoir 6 is 95, 93, 94, etc., that is, each bottle obtains an amount of the replenishment difference required by the reservoir 6 which is subjected to the first dispensing, and the replenishment difference amount is a random precise amount, the precise output can be obtained by the method, that is, the random replenishment difference amount becomes a random demand amount in the present invention, and the precise dispensing can be rapidly and accurately performed by the method.
Example 3 as shown in figures 1, 2, 3 and 4,
a device for dispensing discrete items in a metered, on-demand basis, comprising
A feeder 1 that supplies articles to the first conveyor 2;
a first conveyor 2, the first conveyor 2 divides the articles into at least one article row distributed in a single layer and conveys the articles to a second conveyor 3;
the surface of the second conveyor 3 is provided with counting cells 7 distributed in a matrix form, and each row of counting cells 7 is arranged corresponding to one article row;
the counting mechanism 4 is used for accurately counting the articles in the counting cells 7 on the surface of the second conveyor 3;
a central processor for distributing the articles in the counting compartment 7 to the storage 6 according to the required number of the storage 6
A reservoir 6 for collecting the articles in the counting compartment 7.
The central processing unit identifies images or quantity data of the quantity of articles in a counting grid 7 by a counting mechanism 4, the images are from the counting mechanism 4 for image capture, the quantity data are from the counting mechanism 4 for electric eye counting, the quantity of the articles in the counting grid 7 on the surface of the whole second conveyor 3 can be counted and distributed according to the required quantity, the articles of the feeder 1 can be formed into article columns by the first conveyor 2 by adopting the design of V-shaped grooves and scraping plates, namely, at least one V-shaped groove is distributed on the surface of the first conveyor 2 along the conveying direction, the scraping plates are arranged at the output end of the feeder 1 or the first conveyor 2 or the surface of the first conveyor 2, the height of the scraping plates only can allow the articles in the V-shaped grooves to be distributed in a single layer, namely, a single-layer article column can be obtained, and when more than one article column is arranged, the V-shaped grooves are not communicated, namely, the article columns are not interfered with each other;
a row of counting cells 7 is arranged on the surface of the second conveyor 3 corresponding to each article row, and when more than one article row is arranged, the counting cells 7 are arranged in a matrix manner and receive articles in the corresponding article row;
the number of the articles in the counting cells 7 is counted to obtain the number of the articles in each counting cell 7 on the surface of the second conveyor 3 and the number arrangement data of the articles in all the counting cells 7 of the whole, that is, the articles in the counting cells 7 can be distributed according to the required quantity, the distribution method is that the required quantity with the required quantity of 10 is obtained, 10 articles are output by the output end according to the sequence output by the second conveyor 3, and as the number of the articles in the counting cells 7 is 1 or 0, 10 technical cells for selecting the articles in the counting cells 7 are calculated, and the 10 counting cells 7 are continuous.
The first conveyor 2 divides the articles into at least two article rows distributed in a single layer, the second conveyor 3 is correspondingly provided with counting cells 7, the device also comprises a collector 8 and a gate 9, the gate 9 is arranged corresponding to each row of counting cells 7, the central processor controls the gate 9 to open or close, the articles are controlled to enter the collector 8 through the gate 9 or temporarily stored in the gate 9, and the collector 8 outputs the articles to the storage 6.
The first conveyor 2 is provided with at least two V-shaped grooves, the counting cells 7 of the second conveyor 3 are arranged corresponding to the V-shaped grooves and consistent with the number of the V-shaped grooves, the gates 9 are arranged corresponding to each row of the counting cells 7, when the articles in the counting cells 7 are output, whether the articles are output to the storage 6 or not is controlled through the gates 9, each gate 9 is controlled to be opened or closed independently, when the articles in each row of the counting cells 7 are output to one storage 6, the gates 9 are opened, the articles enter the collector 8 through the gates 9 and are sent to the storage 6, when the articles in each row of the counting cells 7 are distributed to different storages 6, the gates 9 distributed to the rows of the counting cells 7 of the storage 6 are opened, the articles are output, and the gates 9 corresponding to the rows of the counting cells 7 which are not distributed to the storage 6 are closed, and the articles are temporarily stored.
The device is provided with a flow dividing mechanism 5 and at least two collectors 8, wherein the flow dividing mechanism 5 comprises a flow dividing channel 10 group arranged corresponding to each row of counting cells 7, the flow dividing channel 10 group is provided with a flow dividing channel 10 arranged corresponding to each collector 8, and each collector 8 outputs to one storage 6.
The distribution efficiency can be increased by increasing the design of the collectors 8, that is, the distribution can be performed by a plurality of collectors 8, the plurality of collectors 8 correspond to one storage 6, when the articles in each row of counting cells 7 are output, the counting cells 7 are distributed to the storage 6, the diversion channel 10 outputs the articles in the counting cells 7 to the collectors 8 corresponding to the storage 6, and the distribution of the plurality of storages 6 can be performed simultaneously by the design, so that the distribution efficiency is increased.
A temporary storage mechanism is arranged, the temporary storage mechanism comprises a gate 9 corresponding to each row of counting cells 7 and a conveying channel for conveying articles to the storage 6, and the central processing unit controls the gate 9 to be opened or closed so as to convey the articles into the conveying channel or temporarily store the articles.
The invention can control the output of the counting cells 7 in the form of the gate 9, when the articles in the counting cells 7 are output to the storage 6 through the gate 9 and the conveying channel, the articles can be closed through the gate 9, the articles are temporarily stored for temporary storage, the conveyor can continuously output the articles, and the conveying efficiency is improved.
The distribution mechanism 5 comprises a distribution channel 10 group corresponding to each gate 9, the central processing unit controls the gates 9 to be opened or closed so as to send articles into the distribution channel 10 group or temporarily store the articles, the distribution channel 10 group is provided with a distribution channel 10 corresponding to each collector 8, and the central processing unit controls the distribution channel 10 to output the articles to the collectors 8 corresponding to the distributed storage 6.
The counting mechanism 4 comprises an image capturing mechanism which is arranged above the second conveyor 3 and is used for capturing images of the counting cells 7 of the second conveyor 3 and transmitting the images to the central processing unit for identification and counting.
It should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A method of metered on-demand dispensing of discrete items, comprising:
step one, a feeder supplies articles to a first conveyor, the first conveyor divides the articles into at least one article row distributed in a single layer and outputs the articles to a second conveyor,
step two, the second conveyor is provided with a row of counting cells corresponding to each article row, the articles in each article row fall into the counting cells of the corresponding row on the surface of the second conveyor after being output by the first conveyor, and the number of the articles in each counting cell is 1 or 0;
thirdly, accurately counting the articles in the counting cells on the surface of the second conveyor;
step four, the second conveyor outputs the articles, and the articles in the counting cells are distributed to the storage tanks according to the required quantity, in the step four, the articles are collected by at least two storage tanks, and the articles in each counting cell are conveyed to the distributed storage tanks in a shunting manner;
in the fourth step, when articles in a row of counting cells which are transversely arranged side by side in different counting cell rows are output and one or more articles in the row of counting cells are not distributed to the storage, the articles in the counting cells are output and are independently temporarily stored, and the temporarily stored articles are distributed to a new storage in preference to the articles in a new row of counting cells.
2. A method of dosed, on-demand dispensing of discrete items according to claim 1, wherein: in the fourth step, the articles are collected by at least two storage containers, the articles in each counting compartment are conveyed to the assigned storage container in a shunting manner, and the articles in the counting compartment are rejected when the articles in the counting compartment are not assigned to the storage container.
3. A complementary difference distribution method using the quantitative on-demand distribution method for discrete items according to claim 1 or 2, characterized in that: the storage device obtains the first distribution quantity lower than the target quantity, calculates the quantity of the articles with the difference between the obtained first distribution quantity and the target quantity, generates a demand quantity corresponding to the storage device, and outputs the articles with the demand quantity to the corresponding storage device.
4. A quantitative on-demand dispensing device for discrete items using the dispensing method of any one of claims 1 to 3, characterized in that: comprises that
A feeder supplying articles to the first conveyor;
the first conveyor divides the articles into at least one article row distributed in a single layer and conveys the articles to the second conveyor;
the surface of the second conveyor is provided with counting cells distributed in a matrix form, and each row of counting cells is arranged corresponding to one article row;
the counting mechanism is used for accurately counting the articles in the counting cells on the surface of the second conveyor;
a CPU for distributing the articles in the counting cells to the storage units according to the required number of the storage units
The storage device is used for collecting the articles in the counting cells;
the first conveyor divides the articles into at least two article rows distributed in a single layer, the second conveyor is provided with counting cells corresponding to the article rows, the second conveyor further comprises a collector and a gate, the gate is arranged corresponding to each row of counting cells, the central processor controls the gate to be opened or closed, the articles are controlled to enter the collector through the gate or temporarily stored in the gate, and the collector outputs the articles to the storage.
5. A metered drop-on-demand dispensing apparatus for discrete items as claimed in claim 4, wherein: the device is provided with a flow dividing mechanism and at least two collectors, wherein the flow dividing mechanism comprises a flow dividing channel group arranged corresponding to each row of counting cells, the flow dividing channel group is provided with a flow dividing channel arranged corresponding to the collectors, and each collector outputs articles to one storage device.
6. A metered drop-on-demand dispensing apparatus for discrete items as claimed in claim 4, wherein: the temporary storage mechanism comprises a gate and a conveying passage, wherein the gate corresponds to each row of counting cells, the conveying passage is used for conveying articles to the storage, and the central processing unit controls the gate to be opened or closed so as to convey the articles into the conveying passage or temporarily store the articles.
7. A metered drop-on-demand dispensing apparatus for discrete items as claimed in claim 4, wherein: the distribution mechanism comprises a distribution channel group corresponding to each gate, the central processing unit controls the gates to be opened or closed so as to send the articles into the distribution channel group or temporarily store the articles, the distribution channel group is provided with a distribution channel corresponding to each collector, the central processing unit controls the distribution channels to output the articles to the collectors corresponding to the distributed storage devices, and each collector outputs the articles to one storage device.
8. A metered drop-on-demand dispensing apparatus for discrete items as claimed in claim 4, wherein: the counting mechanism comprises an image capturing mechanism, the image capturing mechanism is arranged above the second conveyor and is used for capturing images of counting cells of the second conveyor and transmitting the images to the central processing unit for identification and counting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057363.2A CN106743405B (en) | 2017-01-26 | 2017-01-26 | Quantitative on-demand distribution method and device for discrete articles and compensation distribution method |
Applications Claiming Priority (1)
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| CN111282838B (en) * | 2020-03-06 | 2022-05-17 | 北京农业信息技术研究中心 | Grain-by-grain seed metering device and seed sorting system |
| CN112078869B (en) * | 2020-09-11 | 2022-05-27 | 上海海洋大学 | Fish straightening and boxing system |
| CN113734519A (en) * | 2021-09-18 | 2021-12-03 | 温州医科大学附属第二医院（温州医科大学附属育英儿童医院） | Traditional chinese medicine distribution conveyer |
| CN115026823B (en) * | 2022-06-14 | 2023-01-17 | 广东天太机器人有限公司 | Industrial robot control method and system based on coordinate welding |
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