CN114453283B - Air blowing discharging monitoring method for sorting machine - Google Patents
Air blowing discharging monitoring method for sorting machine Download PDFInfo
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- CN114453283B CN114453283B CN202111559820.0A CN202111559820A CN114453283B CN 114453283 B CN114453283 B CN 114453283B CN 202111559820 A CN202111559820 A CN 202111559820A CN 114453283 B CN114453283 B CN 114453283B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
- B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/38—Collecting or arranging articles in groups
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- Sorting Of Articles (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a method for monitoring air blowing and discharging of a sorting machine, which comprises the following steps of: a photographing mechanism is arranged on the discharging side of the sorting machine; the photographing mechanism acquires an image of the material after the air blowing module of the sorting machine blows the material and sends the image to the upper computer; and the upper computer analyzes and processes the image to judge whether the air blowing action of the air blowing module is normal. Compared with the traditional correlation optical fiber counting method, the air blowing and discharging monitoring method for the sorting machine is more convenient to install and debug the photographing mechanism, can realize switching by simply adjusting the focal length of the camera aiming at materials with different sizes and specifications, and has strong universality; the counting result is more accurate, the resolution of the photo realizes leap from point to surface relative to the optical fiber, overlapped and side-by-side materials can be distinguished through image analysis and processing, and the dirt interference is eliminated; the result is more intuitive, and the process state of the material blowing can be directly observed through the stored photos, so that targeted debugging can be conveniently carried out.
Description
Technical Field
The invention relates to the technical field of sorting machines, in particular to a method for monitoring air blowing and discharging of a sorting machine.
Background
With the development of economy and the advancement of science and technology, the electronic technology field has a leap development, and electronic products are seen everywhere in our lives. In the production process of electronic products, the appearance of a tiny component needs to be detected so as to meet the production requirements. In order to detect whether the blowing and discharging of the existing appearance sorting machine are normal or not, the commonly adopted method is to count the number of materials passing through a blowing nozzle by utilizing a correlation optical fiber at the rear of a blowing position, and then compare the number of the materials with the number of triggering times of the blowing action, so that whether the blowing action is normal or not is indirectly obtained. This approach has the following disadvantages: (1) the optical fiber position debugging is difficult: because the material is small (the minimum can reach 0.4 x 0.2mm), and the optical fiber is a punctiform light source, the counting function can be realized only by aligning the emitted light to the material; (2) poor versatility: when products with different sizes are switched, the optical fiber position needs to be debugged again; (3) inaccurate counting results: due to insufficient resolution capability of the optical fiber, counting is easily interfered by other dirt (such as scratches of a glass turntable, solder balls and the like), overlapped and side-by-side materials cannot be distinguished, and counting is easy to miss; (4) the results are not intuitive: by means of indirect counting, the process of blowing the material cannot be directly observed.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a method for monitoring air blowing and discharging of a sorting machine, which can effectively detect whether the air blowing and discharging actions of the sorting machine are normal.
The air blowing and discharging monitoring method of the sorting machine provided by the embodiment of the invention comprises the following steps of: a photographing mechanism is arranged on the discharging side of the sorting machine; the photographing mechanism acquires an image of the material blown by the blowing module of the sorting machine and sends the image to an upper computer; and the upper computer analyzes and processes the image to judge whether the blowing action of the blowing module is normal.
The method for monitoring the air blowing and discharging of the sorting machine, provided by the embodiment of the invention, at least has the following beneficial effects: compared with the traditional correlation optical fiber counting method, the installation and debugging of the photographing mechanism are more convenient, the switching can be realized by simply adjusting the focal length of the camera aiming at materials with different sizes and specifications, and the universality is strong; the counting result is more accurate, the resolution ratio of the photo realizes the leap from point to surface relative to the optical fiber, overlapped and side-by-side materials can be distinguished through image analysis and processing, and the interference of dirt (such as rotary disc scratches, solder balls and the like) is eliminated; the result is more directly perceived, and the host computer accessible display observes the accurate position of material to can directly observe the process state that the material blows away through the photo of keeping down, so that the pertinence debugs.
According to some embodiments of the present invention, the analyzing and processing the image by the upper computer to determine whether the blowing action of the blowing module is normal includes: after the upper computer obtains the image, setting a blowing area; counting the quantity of the materials in the blowing area; if the quantity of the materials in the blowing area is 1, judging whether the materials are blown into a material receiving box of the sorting machine or not; if so, the blowing action of the blowing module is normal; if not, the blowing action of the blowing module is abnormal.
According to some embodiments of the invention, the determining whether the material is blown into the material receiving box of the sorting machine comprises: acquiring the center point coordinate of the material and the center point coordinate of the blowing position, and connecting the two points to obtain a first line segment; determining an included angle theta' between the first line segment and a radial line of a rotary disc of the sorting machine; if the theta' | > | theta |, judging that the material is not blown into the material receiving box; if the theta is less than or equal to the theta, judging that the material is blown into the material receiving box; wherein θ = arctan (a/2 b), a is the opening width of the material receiving box, and b is the distance between the air blowing position and the material receiving box.
According to some embodiments of the present invention, the analyzing and processing of the image by the upper computer to determine whether the blowing action of the blowing module is normal further includes: and if the quantity of the materials in the blowing area is not 1, judging that the blowing action of the blowing module is abnormal.
According to some embodiments of the invention, before setting the blowing area, the method further comprises the following steps: and the upper computer performs smooth noise reduction processing on the acquired image.
According to some embodiments of the invention, further comprising: and if the abnormal times of the blowing action of the blowing module reach a preset value, alarming.
According to some embodiments of the invention, the photographing mechanism comprises: a first sliding table; the bracket is arranged on the first sliding table; the second sliding table is arranged at the upper end of the bracket; the camera is arranged on one side of the second sliding table; the light source is arranged on the support and is positioned below the camera.
According to some embodiments of the invention, the photographing mechanism further comprises a light source controller for adjusting the light source.
According to some embodiments of the invention, the sorter comprises: a base; the driving mechanism is arranged on the base; the rotary table is arranged at the upper end of the driving mechanism, and the driving mechanism is used for driving the rotary table to rotate; the material conveying mechanism is arranged on one side of the rotary table and is used for conveying materials to the rotary table; the guide mechanism is arranged on one side of the turntable and used for guiding the materials on the turntable; the light sensation detection mechanism is arranged on one side of the guide mechanism; the visual detection mechanisms are arranged on one side of the light sensation detection mechanism and are sequentially arranged along the circumferential direction of the outer side of the turntable, and the visual detection mechanisms are used for sorting the materials; the air blowing module is arranged on one side of the rotary disc; the material distribution module comprises a plurality of material receiving boxes, and the blowing module is used for blowing the materials into the corresponding material receiving boxes according to the sorting result.
According to some embodiments of the invention, the material conveying mechanism comprises: the discharge end of the storage hopper is provided with a first rail; the vibration dish, set up in first track below, be provided with on the vibration dish with the material conveying is to second track on the carousel.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a top view of a sorter and camera mechanism according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a sorting machine and a photographing mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic view of a portion of the structure of a sorting machine and a photographing mechanism according to an embodiment of the present invention;
FIG. 4 is a flow chart of steps of a method for monitoring air blowing and discharging of a sorting machine according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a photographing mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a method for monitoring air blowing and discharging of a sorting machine according to an embodiment of the present invention;
reference numerals:
the device comprises a photographing mechanism 100, a first sliding table 110, a support 120, a second sliding table 130, a camera 140, a light source 150, a base 200, a driving mechanism 300, a rotary table 400, a material conveying mechanism 500, a storage hopper 510, a first rail 520, a vibrating disc 530, a second rail 540, a guide mechanism 600, a light sensation detection mechanism 700, a visual detection mechanism 800, an air blowing module 900, a material distribution module 1000, a material receiving box 1100 and an ion fan 1200.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
The air blowing and discharging monitoring method for the sorting machine, provided by the embodiment of the invention, is used for detecting whether the air blowing and discharging actions of the sorting machine are normal. In order to explain the method for monitoring the blowing and discharging of the sorting machine in the embodiment of the invention, the structure of the sorting machine related to the embodiment of the invention is explained first; it should be noted that the method can also be applied to existing sorters.
As shown in fig. 1 to 3, the sorting machine according to the embodiment of the present invention includes a base 200, a driving mechanism 300, a turntable 400, a material conveying mechanism 500, a guiding mechanism 600, a light sensing mechanism 700, a plurality of visual detecting mechanisms 800, a blowing module 900, and a material dividing module 1000. The driving mechanism 300 is arranged on the base 200; the turntable 400 is arranged at the upper end of the driving mechanism 300, and the driving mechanism 300 is used for driving the turntable 400 to rotate; the material conveying mechanism 500 is arranged on one side of the turntable 400, and the material conveying mechanism 500 is used for conveying materials to the turntable 400; the guide mechanism 600 is arranged on one side of the turntable 400, and the guide mechanism 600 is used for guiding materials on the turntable 400; the light sensing detection mechanism 700 is arranged on one side of the guide mechanism 600; the plurality of visual detection mechanisms 800 are arranged on one side of the light sensation detection mechanism 700, the plurality of visual detection mechanisms 800 are sequentially arranged along the outer circumferential direction of the turntable 400, and the visual detection mechanisms 800 are used for sorting materials; the blowing module 900 is arranged at one side of the turntable 400; the material distribution module 1000 comprises a plurality of material receiving boxes 1100, and the blowing module 900 is used for blowing the materials into the corresponding material receiving boxes 1100 according to the sorting result. The turntable 400 may be a glass turntable, and the driving mechanism 300 may be a DD motor.
Specifically, the working principle of the sorting machine according to the embodiment of the invention is as follows:
firstly, the material conveying mechanism 500 conveys the material to the turntable 400; then, the guide mechanism 600 guides the product in a vacuum suction mode, negative pressure is generated between the guide mechanism 600 and the turntable 400 through vacuum suction, the side face of the material is adsorbed on the guide mechanism 600, the driving mechanism 300 drives the turntable 400 to rotate, and the material is taken away from the guide mechanism 600, so that the guide effect is achieved; then, the turntable 400 drives the materials to pass through the light sensation detection mechanism 700, and the light sensation detection mechanism 700 detects whether the materials pass through optical fibers, so that the positions of the materials are fed back to a host of the sorting machine, and the subsequent photographing actions of the plurality of visual detection mechanisms 800 are triggered; after the materials sequentially pass through each visual detection mechanism 800, the visual detection mechanisms 800 photograph the materials in all directions so that a host of the sorting machine can sort the materials conveniently; and then the blowing module 900 blows the material into the material receiving boxes 1100 corresponding to the material distribution module 1000 according to the sorting result.
As shown in fig. 2, in some embodiments of the invention, the material transport mechanism 500 includes a storage hopper 510 and a vibratory pan 530; the discharge end of the storage hopper 510 is provided with a first track 520; the vibration plate 530 is disposed below the first track 520, and a second track 540 for transferring the material onto the turntable 400 is disposed on the vibration plate 530.
Specifically, when the material is sorted by using the sorting machine, the material to be sorted is put into the storage hopper 510, and after passing through the storage hopper 510, the material enters the vibration plate 530 from the first rail 520; the vibratory tray 530 uses frequency-modulated vibration to align the material on the second track 540 and to transfer the material to the turntable 400 through the second track 540.
As shown in fig. 3, in some embodiments of the invention, an ion fan 1200 is also disposed below the turntable 400. The ion fan 1200 is used to remove static electricity and prevent the material from being damaged.
As shown in fig. 1, in some embodiments of the present invention, the number of the visual inspection mechanisms 800 is six, which are a top view inspection mechanism, a bottom view inspection mechanism, a front view inspection mechanism, a rear view inspection mechanism, a left view inspection mechanism, and a right view inspection mechanism. The six visual inspection mechanisms 800 can take pictures with a high-speed camera, so that six surfaces of the materials are taken pictures respectively, and the materials can be sorted accurately by a host of the sorting machine.
Referring to fig. 4 to 6, a method for monitoring air blowing and discharging of a sorting machine according to an embodiment of the present invention includes the following steps:
step S100: the photographing mechanism 100 is arranged on the discharging side of the sorting machine.
Specifically, as shown in fig. 3 and 5, the photographing mechanism 100 according to the embodiment of the invention includes a first sliding table 110, a bracket 120, a second sliding table 130, a camera 140, and a light source 150; wherein, the first sliding table 110 is arranged on the base 200; the bracket 120 is arranged on the first sliding table 110; the second sliding table 130 is disposed at the upper end of the bracket 120; the camera 140 is disposed at one side of the second sliding table 130; the light source 150 is disposed on the bracket 120, and the light source 150 is located below the camera 140. The camera 140 is located above the air blowing module 900 so as to take a picture of the air blowing process of the air blowing module 900.
By arranging the bracket 120 on the first sliding table 110, the orientation of the bracket 120 can be adjusted; by arranging the camera 140 on the second sliding table 130, the angle, orientation and position of the camera 140 can be adjusted. Through such setting, can conveniently adjust the field of vision of shooing and the angle of shooing of camera 140, the debugging is simple convenient. The camera 140 may be a high-speed camera, and a lens of the camera 140 may be a high-definition lens, so that a shot image is clearer, and subsequent analysis and processing are facilitated.
In some embodiments of the present invention, a light source controller is further provided to adjust the illumination intensity of the light source 150, and the light source controller controls the on/off and brightness of the light source 150.
Step S200: the photographing mechanism 100 obtains an image of the material blown by the blowing module 900 of the sorting machine and sends the image to the upper computer.
Specifically, as shown in fig. 6, when the turntable 400 drives the material to the blowing position of the blowing module 900, the blowing module 900 is started, the electromagnetic valve is turned on, and the blowing nozzle starts blowing the material. At the moment when the blowing module 900 is started, the material is not blown away, so that after waiting for a period of time (for example, 1-3 ms), the photographing mechanism 100 starts photographing to obtain an image of the process of blowing up the material, and sends the obtained image to the upper computer.
Step S300: the upper computer analyzes and processes the image to judge whether the blowing action of the blowing module 900 is normal.
Specifically, in order to make the analysis processing result of the image more accurate, the upper computer may perform smoothing and denoising processing on the image after acquiring the image. Subsequently, as shown in fig. 6, a blowing area and a background area are set; extracting a difference part (namely the material) between the blowing area and the background area so as to count the quantity of the material in the blowing area; if the quantity of the materials in the blowing area is 1, further judging whether the materials are blown into a material receiving box 1100 of the sorting machine correctly; if yes, the blowing action of the blowing module 900 is normal; if not, the abnormal blowing operation of the blowing module 900 is described.
In order to further judge whether the material is correctly blown into the receiving box 1100 of the sorting machine, firstly, the coordinates of the central point of the material and the coordinates of the central point of the blowing position need to be obtained, and the two points are connected to obtain a first line segment; then determining an angle theta' between the first line segment and a radial line of a turntable 400 of the sorting machine; if the value is theta' | > | theta |, judging that the material is not blown into the material receiving box 1100; if the theta is less than or equal to the theta, judging that the material is blown into the material receiving box 1100; where θ = arctan (a/2 b), a is the opening width of the material receiving box 1100, and b is the distance between the blowing position and the material receiving box 1100.
If the quantity of the materials in the material blowing area is not 1, it is determined that the air blowing action of the air blowing module 900 is abnormal. When the quantity of the materials in the blowing area is more than 1, the situation that the materials are overlapped or arranged side by side is shown; when the quantity of the materials in the material blowing area is 0, the materials are lost or blown away.
In addition, when the upper computer detects that the abnormal times of the blowing action of the blowing module 900 reach the preset value, the upper computer can also drive the alarm mechanism to give an alarm. Wherein, the alarm mechanism can adopt a buzzer, a flashing light and the like.
Therefore, according to the method for monitoring the air blowing and discharging of the sorting machine, compared with the traditional correlation optical fiber counting method, the photographing mechanism 100 is more convenient to install and debug, the switching can be realized by simply adjusting the focal length of the camera aiming at materials with different sizes and specifications, and the universality is high; the counting result is more accurate, the resolution ratio of the photo realizes the leap from point to surface relative to the optical fiber, overlapped and side-by-side materials can be distinguished through image processing, and the interference of dirt (such as rotary disc scratches, solder balls and the like) is eliminated; the result is more directly perceived, and the host computer accessible display observes the accurate position of material to can directly observe the process state that the material blows off through the photo of keeping down, so that the pertinence debugs.
In the description herein, references to the description of "one embodiment," "a further embodiment," "some specific embodiments," or "some examples," etc., mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A method for monitoring air blowing and discharging of a sorting machine is characterized by comprising the following steps:
a photographing mechanism is arranged on the discharging side of the sorting machine;
the photographing mechanism acquires an image of the material blown by the blowing module of the sorting machine and sends the image to an upper computer;
the upper computer analyzes and processes the image to judge whether the air blowing action of the air blowing module is normal or not;
the host computer right the image carries out analysis processes to judge whether the action of blowing of the module of blowing is normal, include:
after the upper computer obtains the image, setting a blowing area;
counting the quantity of the materials in the blowing area;
if the quantity of the materials in the blowing area is 1, judging whether the materials are blown into a material receiving box of the sorting machine or not; if so, the blowing action of the blowing module is normal; if not, the blowing action of the blowing module is abnormal;
the judging whether the materials are blown into a material receiving box of the sorting machine comprises the following steps:
acquiring the center point coordinate of the material and the center point coordinate of the blowing position, and connecting the two points to obtain a first line segment;
determining an included angle theta' between the first line segment and a radial line of a turntable of the sorting machine passing through a blowing position;
if the theta' | > | theta |, judging that the material is not blown into the material receiving box;
if the theta is less than or equal to the theta, judging that the material is blown into the material receiving box;
wherein θ = arctan (a/2 b), a is the opening width of the material receiving box, and b is the distance between the air blowing position and the material receiving box.
2. The classifier air blowing and discharging monitoring method of claim 1, further comprising the steps of, before setting the blowing zone:
and the upper computer performs smooth noise reduction processing on the acquired image.
3. The classifier air blowing and discharging monitoring method of claim 1, further comprising:
and if the abnormal times of the blowing action of the blowing module reach a preset value, alarming.
4. The method for monitoring the blowing and discharging of the sorting machine as claimed in claim 1, wherein the photographing mechanism comprises:
a first sliding table;
the bracket is arranged on the first sliding table;
the second sliding table is arranged at the upper end of the bracket;
the camera is arranged on one side of the second sliding table;
the light source is arranged on the support and is positioned below the camera.
5. The method for monitoring air blowing and discharging of a sorting machine of claim 4, wherein the photographing mechanism further comprises a light source controller for adjusting the light source.
6. The classifier air blowing discharging monitoring method of claim 1, wherein the classifier comprises:
a base;
the driving mechanism is arranged on the base;
the rotary table is arranged at the upper end of the driving mechanism, and the driving mechanism is used for driving the rotary table to rotate;
the material conveying mechanism is arranged on one side of the rotary table and is used for conveying materials to the rotary table;
the guide mechanism is arranged on one side of the turntable and used for guiding the materials on the turntable;
the light sensation detection mechanism is arranged on one side of the guide mechanism;
the visual detection mechanisms are arranged on one side of the light sensation detection mechanism and are sequentially arranged along the circumferential direction of the outer side of the turntable, and the visual detection mechanisms are used for sorting the materials;
the air blowing module is arranged on one side of the turntable;
the material distribution module comprises a plurality of material receiving boxes, and the blowing module is used for blowing the materials into the corresponding material receiving boxes according to the sorting result.
7. The classifier air blowing discharge monitoring method of claim 6, wherein the material transport mechanism comprises:
the discharge end of the storage hopper is provided with a first rail;
the vibration dish, set up in first track below, be provided with on the vibration dish with the material conveying is to second track on the carousel.
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| CN114939552A (en) * | 2022-05-19 | 2022-08-26 | 深圳市标谱半导体科技有限公司 | Detection device |
| CN115043191B (en) * | 2022-06-13 | 2024-05-03 | 深圳市大能智造科技有限公司 | Linear discharging device and method for rectangular granular materials |
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| CN214918327U (en) * | 2021-06-11 | 2021-11-30 | 上海微现检测设备有限公司 | Auxiliary device for blowing and removing |
| CN113245240A (en) * | 2021-06-17 | 2021-08-13 | 深圳市杰普特光电股份有限公司 | Material sorting control device and control method |
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