CN114733777A - Global visual appearance recognition sieve inspection equipment for tablet counting machine - Google Patents
Global visual appearance recognition sieve inspection equipment for tablet counting machine Download PDFInfo
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- 230000000007 visual effect Effects 0.000 title claims abstract description 113
- 238000007689 inspection Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 79
- 238000012216 screening Methods 0.000 claims abstract description 71
- 238000001514 detection method Methods 0.000 claims abstract description 62
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 230000002950 deficient Effects 0.000 claims description 14
- 239000008188 pellet Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims 3
- 230000036544 posture Effects 0.000 description 34
- 238000010586 diagram Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- B07C5/34—Sorting according to other particular properties
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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
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
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Abstract
The invention provides global visual appearance identification screening equipment for a tablet counting machine, which comprises a central control host, dropping channels arranged in the vertical direction and a detection mechanism arranged corresponding to each dropping channel; the falling channel is provided with a detection section between the inlet and the outlet, and a product to be detected enters from the inlet and passes through the detection section through the falling body movement; the detection mechanism comprises two visual capture devices, and in one group of detection mechanism, the two visual capture devices are respectively arranged outside two opposite side surfaces of the detection section; two visual capture devices in a set of inspection mechanisms have overlapping fields of view; each vision catching device is electrically connected with the central control host respectively. This sieve equipment is examined in overall situation vision outward appearance discernment carries out the outward appearance through the product to free fall motion through a plurality of vision catching device and observes, can carry out overall situation observation discernment to the outward appearance of product in 360 full-angle's angle coverage, improves the comprehensiveness and the accuracy nature of discernment, guarantees the rate of accuracy of discernment.
Description
Technical Field
The invention relates to the field of detection, in particular to global visual appearance identification screening equipment for a counting machine.
Background
In the field of packaging, for granular products such as tablets, the appearance of the products is usually required to be detected before being subpackaged and packaged so as to ensure that the appearance structure of the products is intact.
The attached drawing figure 1 is the product detection equipment structure under the prior art, when detecting the product under the prior art, arrange the product and spread out usually, then utilize visual equipment to detect the outward appearance structure of product from the top, visual equipment hardly carries out outward appearance to all surfaces of product and detects, has very big limitation in the actual implementation.
Disclosure of Invention
Compared with the prior art that only one visual device is arranged to observe products from one angle, the global visual appearance recognition sieve detecting device can perform global observation and recognition on the appearances of the products in a 360-degree full-angle coverage range by performing appearance observation on the products moving in a free-falling body through a plurality of visual catching devices, improves the comprehensiveness and accuracy of the recognition, and ensures the accuracy of the recognition.
Correspondingly, the invention provides global visual appearance identification screening equipment for a counting machine, which comprises dropping channels arranged in the vertical direction and a detection mechanism arranged corresponding to each dropping channel;
the drop channel includes a first channel section;
the detection mechanism comprises more than two visual capture devices, each visual capture device is arranged on one side of the first channel section, and the working direction of each visual capture device faces the first channel section.
In an alternative embodiment, the detection mechanism comprises two of the visual capture devices.
In an alternative embodiment, two of the visual capture devices are symmetrically disposed about the first channel segment.
In an alternative embodiment, the detection mechanism further comprises a light source, which is arranged above the drop channel and faces the drop channel.
In an optional embodiment, the drop channel further includes a second channel segment and a third channel segment sequentially located below the first channel segment;
the falling channel is provided with a removing opening on the side surface of the second channel section;
the global visual appearance recognition screening equipment further comprises a removing mechanism, and the setting position of the removing mechanism corresponds to the removing opening;
based on the control of the removing mechanism, the first channel section is communicated with the removing opening through the second channel section, or the first channel section is communicated with the third channel section through the second channel section.
In an alternative embodiment, the rejecting mechanism comprises a driving member and a rejecting member;
the driving piece is used for driving the removing piece to act.
In an alternative embodiment, the drive member is a servo motor.
In an optional embodiment, the rejecting member is a plate-shaped structure;
one end of the removing part is hinged to a preset position, the other end of the removing part swings based on the driving part, and based on the swinging posture of the removing part, the first channel section is communicated with the removing opening through the second channel section, or the first channel section is communicated with the third channel section through the second channel section.
In an optional embodiment, the global visual appearance recognition sieve device further comprises a counting electric eye, and the counting electric eye is disposed on the third channel segment.
In an optional embodiment, the number of the dropping channels is more than two;
the lower ends of all the falling channels converge to an integral outlet.
In conclusion, the invention provides the global visual appearance identification screening equipment for the counting machine, which completes the steps of detection, screening, counting and the like in the free falling process of products and has good implementation convenience; the appearance of the product is observed in a mode of arranging a plurality of visual catching devices in the detection structure, so that appearance images of more surfaces of the product can be obtained at the same time; the product is subjected to free falling motion through the falling channel, so that the relative angle between the product and the visual capture device is changed, a detection mechanism can acquire more appearance image information of the related product, the appearance of the product can be globally observed and identified within the angular coverage range of 360 degrees, more comprehensive image data can be provided for the subsequent visual identification step, and the accuracy of product appearance identification is ensured; the rejecting mechanism screens products in real time by using a rapidly moving rejecting piece, and execution efficiency is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a structure of a product inspection apparatus in the prior art.
Fig. 2 is a schematic view of the appearance inspection apparatus according to the embodiment of the present invention.
Fig. 3 is a schematic cross-sectional side view of an appearance inspection apparatus according to an embodiment of the invention.
Fig. 4 is a schematic cross-sectional view illustrating a front view structure of an appearance inspection apparatus according to an embodiment of the invention.
Fig. 5 is a schematic three-dimensional perspective structure diagram of a product to be detected according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of a first operation of a product to be detected by the detection mechanism according to the embodiment of the present invention.
Fig. 7 is a second operation schematic diagram of the detection mechanism according to the embodiment of the present invention.
Fig. 8 is a schematic view of the structure of a screening apparatus for a pellet counter according to an embodiment of the present invention.
Fig. 9 is a side sectional view showing the structure of a screening apparatus for a pellet counter according to an embodiment of the present invention.
Fig. 10 is a first structural schematic diagram of a screening mechanism of the screening apparatus for a particle counter according to the embodiment of the present invention.
Fig. 11 is a second structural diagram of a screening mechanism of the screening device for the particle counter according to the embodiment of the invention.
Fig. 12 is a schematic front view of a screening device for a pellet counting machine according to an embodiment of the present invention.
Fig. 13 is a schematic block diagram of the structure of a global visual appearance recognition screening device for a counting machine according to an embodiment of the present invention.
Fig. 14 is a schematic structural cross-sectional view of a global visual appearance recognition screening device for a counting machine according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: appearance detection device for tablet counting machine
Fig. 2 is a schematic structural diagram of an appearance inspection apparatus according to an embodiment of the present invention, fig. 3 is a schematic sectional view of a side-view structure of the appearance inspection apparatus according to the embodiment of the present invention, and fig. 4 is a schematic sectional view of a front-view structure of the appearance inspection apparatus according to the embodiment of the present invention.
The embodiment of the invention provides an appearance detection device for a tablet counting machine, which basically comprises a visual mechanism and a falling channel 3 arranged vertically.
Specifically, the falling channel 3 is a section of vertical space for the products to be detected to fall, and basically, the falling channel 3 is provided with an inlet at the upper end for the products to be detected to enter; for the sake of illustration, the area of the drop channel 3 from the entrance to a predetermined depth from the entrance is defined (named) as the detection section 11.
Basically, the vision mechanism includes more than two vision capturing devices 5, each vision capturing device 5 is arranged on one side of the detection section 11, the working direction of each vision capturing device 5 faces the detection section 11, and each vision capturing device 5 can capture an image of a product to be detected passing through the detection section 11 to obtain the appearance of the product to be detected.
Specifically, since the visual capturing devices 5 occupy a physical space, when the working directions of more than two visual capturing devices 5 are all directed to the detection section 11, the ranges of the images acquired by the two visual capturing devices 5 are certainly different, and compared with the arrangement structure of only one visual capturing device 5, the implementation structure of the visual mechanism of the embodiment of the invention can acquire more surface image information of the product.
Generally, the vision mechanism is connected with an upper computer such as a central control host computer and feeds captured image information back to the upper computer, so that appearance data of a product to be detected is provided for the upper computer, and accurate data support is carried out on subsequent operation of the upper computer.
Basically, the drop channel 3 is formed on the basis of the structural part 60; the structural member 60 is openly disposed in a region corresponding to each visual capture device 5 or the structural member 60 is a transparent structure 61 in a region corresponding to each visual capture device 5.
The vision mechanism further comprises a light source 4, the light source 4 being arranged above the drop shaft 3, and the light source 4 being directed towards the drop shaft 3. Typically, the material of the structure 60 is not light absorbing, and in practice, the light reflection can make the falling channel 3 have enough light intensity at the position of the detection section 11 for the visual mechanism to work.
Specifically, the visual capture device 5 includes a CMOS sensor, which may be a civilian grade CMOS, to reduce procurement costs.
Furthermore, the number of the falling channels 3 is more than two, and all the falling channels 3 are arranged in sequence along a fixed direction; any two adjacent dropping channels 3 are separated by a solid partition plate 62; each the detection section 11 of the falling channel 3 is correspondingly provided with a group of vision mechanisms. Because the detection of the vision mechanism to the product to be detected is involved, the falling speed of the product to be detected has a threshold value, and more than two falling channels 3 can be arranged in the specific production for adapting the production line speed.
Basically, in the same set of the vision mechanisms, the two or more vision capturing devices 5 are located at the same height, so that the overlapping range of the image capturing regions of the vision capturing devices 5 in the vision mechanisms is increased, and it is ensured that the acquired image can contain as much appearance information of the tablet as possible.
In the same group of vision mechanisms, the more than two vision catching devices 5 are uniformly arranged around the circumference of the corresponding falling channel 3, so that the vision catching range of each vision catching device 5 can be utilized to the maximum.
Further, in each group of the vision mechanisms, the number of the vision capturing devices 5 is two, and the two vision capturing devices 5 are symmetrically arranged with respect to the corresponding detection section 11.
Specifically, the two visual capturing devices 5 are symmetrically arranged with respect to the corresponding detection section 11, so that there is no overlapping area in the surface image information of the product to be detected acquired by the two visual capturing devices 5, which is beneficial to acquiring the most surface information of the product to be detected by using a small number of visual capturing devices 5 in the shortest time.
In addition, the image acquisition principle of the visual mechanism is further analyzed.
Fig. 5 shows a schematic three-dimensional perspective structure of a product to be tested according to an embodiment of the present invention, specifically, a cylindrical tablet having a front surface 71, a back surface 72 and a side wall 73.
Fig. 6 shows a first operation principle diagram of the inspection mechanism to inspect a product according to the embodiment of the present invention, when the tablet is in the posture of the inspection section 11 as shown in fig. 4, because light rays are transmitted along a straight line, when the front surface 71 and the back surface 72 of the tablet are just aligned with one visual capturing device 5 respectively, the visual capturing device 5 cannot perform image acquisition on the side wall 73 of the tablet, that is, if the visual capturing devices 5 in a group of visual mechanisms all acquire only one visual image about the product to be inspected, there is a possibility that the tablet in the posture shown in fig. 4 will be missed for inspection.
Fig. 7 of the accompanying drawings shows a second operation schematic diagram of a product to be detected by the detection mechanism according to the embodiment of the present invention, and similarly, when the tablet is in the posture shown in fig. 5 of the detection section 11, each of the visual capturing devices 5 can capture most of the side wall 73 and the front surface 71 (the side wall 73 and the back surface 72), but there are still a very small amount of visual blind areas above and below the tablet drawing direction, and if only one visual image of the product to be detected is obtained by each visual capturing device 5 in a set of visual mechanisms, the image of the visual blind area cannot be obtained, and there is a possibility of missing detection.
It should be noted that the tablet positions shown in fig. 4 and 5 are both located near the axis of the visual capture device 5, and in actual practice, since the visual capture range of the visual capture device 5 is fan-shaped, when the tablet position is within the visual capture range of the visual capture device 5 but away from the axis of the visual capture device 5, the blind zone position changes accordingly; theoretically, when the posture of the tablet itself is not changed, the visual capturing device 5 can acquire the appearance information of all the surfaces of the tablet by acquiring two images when the tablet is within the visual capturing range of the visual capturing device 5, wherein the tablet position of one image is located above the axis of the visual capturing device 5 and the tablet position of the other image is located below the axis of the visual capturing device 5.
However, in actual operation, because the movement of the tablet in the falling body channel is a free falling body movement, when the visual capturing device 5 respectively acquires a plurality of images of the same tablet, the postures of the tablet in different images are inconsistent, but because the shooting speed of the visual capturing device 5 is high, the posture of the tablet changes, but the change range is small, the probability of generating a blind area is small, and the visual mechanism can acquire all appearance information of the tablet more comprehensively.
For the implementation structure in which a plurality of dropping channels 3 are arranged side by side, all the visual catching devices 5 are arranged in two rows, and the arrangement direction of the visual catching devices 5 in each row of the visual catching devices 5 is the same as the arrangement direction of the dropping channels 3. In addition, all the visual capture devices 5 in each row of the visual capture devices 5 are arranged on a mounting carrier, so that the mounting and assembly are integrally carried out, and the mounting process is simplified.
To sum up, the embodiment of the invention provides an appearance detection device for a counting machine, which comprises a dropping channel, a plurality of visual catching devices and a control device, wherein the dropping channel is used for suspending a product so as to facilitate a visual mechanism to acquire the whole appearance of the product, and the dropping channel is used for arranging the plurality of visual catching devices so as to acquire 360-degree overall appearance surface information of the product to be detected in a short time; the two vision catching devices symmetrically arranged about the falling channel can more efficiently complete the function of acquiring all surface information of the product to be detected, and have good implementation convenience.
Example two: screening device for particle counting machine
Fig. 8 shows a schematic structural diagram of a screening apparatus for a pellet counting machine according to an embodiment of the present invention, and fig. 9 shows a schematic structural side sectional view of the screening apparatus for a pellet counting machine according to an embodiment of the present invention.
The embodiment of the invention provides a screening device for a particle counting machine, which comprises a screening mechanism and a dropping channel 3 which is vertically arranged.
Specifically, the drop channel 3 has an inlet at the upper end, a screening section 22 is provided in the drop channel 3, and the screening mechanism is provided in the screening section 22.
Specifically, the screening section 22 has a product inlet and two product outlets, which are respectively a good product outlet and a defective product outlet 6. In the embodiment of the invention, the defective product outlet 6 is positioned on the side surface of the detection channel, and the product inlet and the good product outlet are both positioned in the detection channel.
Specifically, the screening mechanism includes a controllable barrier 205, and the controllable barrier 205 is switched between a first posture and a second posture; in the first posture of the controllable baffle 205, the product inlet is communicated with the good product outlet; in the second position of the controllable shutter 205, the product inlet communicates with the defective product outlet 6.
Specifically, the falling channel 3 is used for dropping the products one by one, the products can be detected outside the falling channel 3 or in the falling channel 3 in sequence, and then before the products pass through the screening section 22, the posture of the controllable baffle 205 is controlled by an external instruction, so that the products fall out from the good product outlet pole piece or the bad product outlet 6 when passing through the screening section 22.
Specifically, the screening mechanism further comprises a servo motor or an air cylinder; the controllable damper 205 is driven based on the servo motor or the air cylinder. In comparison, the use of servo motors as driving elements provides more precise control capability and less motion noise.
Optionally, the good product outlet is located right below the product inlet. As can be seen from the foregoing description, the falling channel is an area for the falling of the good products, and in order to avoid damaging the good products, the good product outlet is disposed right below the product inlet in the embodiment of the present invention, and correspondingly, when the good products pass through the screening section 22, the good products do not need to contact the solid structure, so that the damage to the good products due to collision contact can be avoided.
Correspondingly, in an alternative embodiment, two ends of the controllable baffle 205 are a fulcrum end and a swing end respectively; the setting position of the fulcrum end is fixed relative to the dropping channel 3, and the swinging end of the controllable baffle 205 swings around the fulcrum end; when the controllable baffle 205 is in the first posture, the controllable baffle 205 is located outside the dropping channel 3, and the product inlet is communicated with the good product outlet; controllable baffle 205 is under the second gesture, the swing end of controllable baffle 205 winds the fulcrum end swings, just the swing end of controllable baffle 205 cuts the passageway 3 that drops, the product entry with non-defective products export disconnection intercommunication, the product entry with defective products export 6 intercommunication.
The implementation structure of the screening mechanism 2 has certain differences according to different power sources.
Referring to fig. 10 of the drawings, in the screening mechanism 2 shown in fig. 10 of the drawings, the screening mechanism 2 includes a servo motor 201, a transmission structure and a controllable flapper 205205 of a plate-like structure. Specifically, the transmission structure is a rotating pulley 203 with a fixed rotating shaft 204, the output end of the servo motor 201 transmits power to the rotating pulley 203 through a transmission mode of orthogonally meshed gears (orthogonally meshed with a bevel gear 202), and the root of the controllable baffle 205205 is fixedly connected to the rotating pulley 203 and swings under the control of the servo motor 201.
Referring to fig. 11 of the drawings, in the screening mechanism 2 shown in fig. 11 of the drawings, specifically, the screening mechanism includes a cylinder 206, a connecting structure 207, and a controllable flapper 205205 of a plate-like structure. Specifically, the connecting member 207 is a deformed strut structure, the connecting member 207 has a fixed rotating shaft 204, and the connecting member 207 is provided with connecting positions at two ends of the rotating shaft 204; the output end of the cylinder 206 is hinged at one of the connection positions, and the controllable baffle 205205 is fixedly connected at the other connection position; the connecting structural member 207 is used for adjusting the length of the force arm at the two ends of the supporting rod and changing the transmission direction of the force, and the air cylinder 206 can be used for well controlling the movement of the controllable baffle 205205. The controllable screen 205205 allows rejected products to be removed from the drop chute 3 via the reject outlet 6 and dropped into a waste bin 8.
In addition, after the product passes through the screening section 22, the accumulated counting bottling procedure is generally performed, and a certain amount of product is filled in a box or a bottle through technical statistics, so that in order to perform targeted counting on the product, the screening device further comprises a non-contact counting mechanism 1, and a dropping channel 3 positioned below the screening section 22 is a counting section; the non-contact counting mechanism 1 is arranged on one side of the counting section, and the working direction of the non-contact counting mechanism 1 faces the counting section. Specifically, the non-contact counting mechanism 1 may be a counting electric eye or other prior art device. Specifically, the reason for using the non-contact counting mechanism 1 is to avoid interference to the movement of the product and direct contact to the product by using a physical structure, and to avoid damage to the product.
Fig. 12 is a front view schematically showing the structure of a screening apparatus for a pellet counting machine according to an embodiment of the present invention. Further, in order to adapt to the speed of the production line, in an optional embodiment, the number of the dropping channels 3 is more than two; the screening device also comprises a convergence structure, the convergence structure comprises a convergence inlet positioned at the upper end and a convergence outlet positioned at the lower end, and a convergence cabin 85 is arranged between the convergence inlet and the convergence outlet; the outlets of all the drop channels 3 are respectively communicated with the convergence inlet.
Specifically, the convergence compartment 85 serves to concentrate the outlets of the plurality of falling channels 3, so that the falling products can fall into the convergence compartment 85, thereby performing overall subsequent operations on a certain number of products through the convergence compartment 85. With the structure shown in the figure, the convergence cabin 85 is funnel-shaped, when a product drops, the product firstly touches the inner wall of the inclined plane of the convergence cabin 85, and the inner wall of the inclined plane can play a role in buffering the product.
In an optional embodiment, a blanking baffle 81 is arranged between the convergence cabin 85 and the convergence outlet, and the blanking baffle 81 is switched between a first posture and a second posture; the feeding baffle 81 is in a first posture, and the convergence cabin 85 is communicated with the convergence outlet; when the blanking baffle 81 is in the second posture, the space between the convergence cabin 85 and the convergence outlet is cut off by the blanking baffle 81. The blanking baffle 81 is used to control the accumulated counted products to collectively leave the convergence chamber 85.
In an alternative embodiment, the blanking baffle 81 is controlled based on a servo motor or an air cylinder.
Further, the convergence compartment 85 comprises a first convergence compartment 85 and a second convergence compartment 85 which are arranged along the vertical direction; a separation baffle 80 is arranged between the first convergence cabin 85 and the second convergence cabin 85; the partition baffle 80 is switched between the first posture and the second posture; in the first posture of the partition baffle 80, the first convergence cabin 85 is communicated with the second convergence cabin 85; in the second posture of the dividing baffle 80, the space between the first convergence compartment 85 and the second convergence compartment 85 is intercepted by the dividing baffle 80. The separating baffle 80 is used for dividing the convergence cabin 85 into two parts, so that the movement speed of a production line can be adapted in a more controllable manner; specifically, when the total number of products counted by the first convergence compartment 85 reaches a target value, all the products are transferred to the second convergence compartment 85 by controlling the separation baffle 80, and when the second convergence compartment 85 is not yet fed by the feeding baffle 81, the first convergence compartment 85 still can generate a function of accumulating the products; the second converging cabin 85 is adapted to the speed of the production line, and the products in the second converging cabin 85 integrally leave the second converging cabin 85 by controlling the blanking baffle 81 at a proper time.
In alternative embodiments, the dividing baffle 80 is based on servo motor or cylinder control.
In summary, the embodiment of the present invention provides a screening device for a pellet counting machine, in which good products can directly pass through a falling channel, and defective products can be removed through a controllable baffle 205, so as to realize a screening function for the good products and the defective products, and simultaneously avoid contact collision of the good products to protect the good products.
Example three: global visual appearance recognition sieve inspection equipment for tablet counting machine
Specifically, the first embodiment and the second embodiment both relate to the common implementation carrier of the dropping channel 3, so that the first embodiment and the second embodiment can be organically combined to obtain the screening device with an integrated detection and screening structure.
Specifically, fig. 13 is a schematic structural diagram of the global visual appearance recognition screening device for the counting machine according to the embodiment of the present invention, and fig. 14 is a schematic structural cross-sectional diagram of the global visual appearance recognition screening device for the counting machine according to the embodiment of the present invention.
The embodiment of the invention provides global visual appearance identification screening equipment for a tablet counting machine, which comprises a central control host, dropping channels 3 arranged in the vertical direction and detection mechanisms arranged corresponding to the dropping channels 3.
The falling channel 3 is provided with an inlet at the upper end and an outlet at the lower end, a detection section is arranged between the inlet and the outlet of the falling channel 3, and a product 7 to be detected enters from the inlet and moves through the detection section through a falling body.
The detection mechanism comprises two visual capture devices 5, in one group of detection mechanism, the two visual capture devices 5 are respectively arranged outside two opposite side surfaces of the detection section, and the working direction of each visual capture device 5 faces the detection section.
The two visual capture devices 5 in a set of the detection mechanisms have overlapping fields of view.
Each vision capture device 5 is electrically connected with the central control host respectively.
Specifically, the global visual appearance recognition sieve inspection device provided by the embodiment of the invention is provided with a central control host for receiving and processing the acquired image of the visual capture device 5 so as to perform linkage control on other components.
Specifically, the size of the overlapped observation region and the image capturing speed of each visual capturing device 5 are set based on the following conditions: when the product 7 to be detected passes through the overlapped observation area, the number of the pictures captured by each visual capturing device 5 is more than two. Based on the image generated by the image acquisition according to the relationship between the position of the visual capturing device 5 and the relative position of the product 7 described in the first embodiment, theoretically, when the product 7 to be detected passes through the overlapped observation area, the number of captured images of each visual capturing device 5 is greater than two, so that the generation of the visual blind area can be avoided, and the accuracy requirement can be well met.
Further, the image capturing actions of the two visual capturing devices 5 in one set of the detecting mechanism are synchronized.
After passing through the detection section, the products 7 reach the screening section to be separated into good products and defective products, specifically, the light detection equipment further comprises a screening mechanism 2, the falling channel 3 further comprises a screening section positioned between the detection section and the outlet, the screening section is provided with a product 7 inlet and two product 7 outlets, and the two product 7 outlets are respectively a good product outlet and a defective product outlet 6; the products 7 to be detected enter the detection section after passing through the detection section, and the screening mechanism 2 controls the products 7 to be detected to leave the detection section from the good product outlet and the defective product outlet 6; the screening mechanism 2 is electrically connected with the central control host. The central control host is responsible for controlling the screening mechanism 2, so that good products and defective products are separated.
Specifically, the movable part in the screening mechanism 2 is a controllable baffle, the screening mechanism 2 comprises a controllable baffle, and the controllable baffle is switched between a first posture and a second posture;
the controllable baffle is in a first posture, and the product 7 inlet is communicated with the good product outlet;
and when the controllable baffle is in the second posture, the product 7 inlet is communicated with the defective product outlet 6.
The movement of the controllable baffle can be driven based on a servo motor or an air cylinder; and the servo motor or the air cylinder is controlled based on the central control host.
Further, the falling channel 3 is provided with a non-contact counting mechanism 1 at the outlet;
the working direction of the non-contact counting mechanism 1 faces the falling channel 3;
the non-contact counting mechanism 1 is electrically connected with the central control host.
The number of the falling channels 3 is more than two so as to match the running speed of a production line.
The global visual appearance recognition sieve inspection equipment further comprises a convergence structure, the convergence structure comprises a convergence inlet positioned at the upper end and a convergence outlet positioned at the lower end, and a convergence cabin 85 is arranged between the convergence inlet and the convergence outlet; the outlets of all the drop channels 3 are respectively communicated with the convergence inlet.
A blanking baffle is arranged between the convergence cabin 85 and the convergence outlet and is switched between a first posture and a second posture;
the blanking baffle is in a first posture, and the convergence cabin 85 is communicated with the convergence outlet;
when the blanking baffle is in the second posture, the space between the convergence cabin 85 and the convergence outlet is cut off by the blanking baffle;
and the posture of the blanking baffle is controlled based on the central control host.
The convergence compartment 85 comprises a first convergence compartment 85 and a second convergence compartment 85 which are arranged along the vertical direction;
a separation baffle is arranged between the first convergence cabin 85 and the second convergence cabin 85;
the separation baffle switches between a first posture and a second posture;
when the separating baffle is in the first posture, the first convergence cabin 85 is communicated with the second convergence cabin 85;
when the separating baffle is in the second posture, the space between the first convergence cabin 85 and the second convergence cabin 85 is cut off by the separating baffle;
the posture of the separation baffle is controlled based on the central control host.
Similarly, the counting statistics of the non-contact counting mechanism 1, the movement of the blanking baffle and the movement of the separation baffle are also controlled based on a central control host, and the central control host is responsible for the linkage of the moving parts and the electronic parts in the whole overall visual appearance recognition screening equipment.
In summary, the embodiment of the present invention provides a global visual appearance recognition screening apparatus for a tablet counting machine, which completes the steps of detection, screening, counting, etc. in the process of free falling of a product, and has good implementation convenience; the overall visual appearance recognition sieve inspection equipment can perform overall observation and recognition on the appearance of a product in 360-degree full-angle coverage range by observing the appearance of the product in free-fall motion through a plurality of visual catching devices, improves the comprehensiveness and accuracy of recognition, and ensures the accuracy of recognition; the screening mechanism screens the products 7 in real time by using the controllable baffle plate which moves rapidly, and the execution efficiency is high.
The global visual appearance recognition screening device for the tablet counting machine provided by the embodiment of the invention is described in detail, a specific embodiment is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A global visual appearance recognition sieve inspection device for a particle counter is characterized by comprising a central control host, dropping channels arranged in the vertical direction and a detection mechanism arranged corresponding to each dropping channel;
the falling channel is provided with an inlet at the upper end and an outlet at the lower end, a detection section is arranged between the inlet and the outlet of the falling channel, and a product to be detected enters from the inlet and passes through the detection section through falling body movement;
the detection mechanism comprises two visual capture devices, the two visual capture devices are respectively arranged outside two opposite side surfaces of the detection section in one group of the detection mechanism, and the working direction of each visual capture device faces the detection section;
two visual capture devices in a set of the inspection mechanisms have overlapping fields of view;
each vision capture device is electrically connected with the central control host respectively.
2. The global visual appearance recognition screening apparatus for a pellet counter as claimed in claim 1, wherein the size of the overlapping observation region and the image capturing speed of each visual capturing device are set based on the following conditions:
when the product to be detected passes through the overlapped observation area, the number of the picture captures of each visual capture device is more than two.
3. The global visual appearance recognition screening apparatus for a counting machine as claimed in claim 1 wherein the image capturing action of two visual capturing devices in a set of said inspection mechanisms is synchronized.
4. The global visual appearance recognition sieve apparatus for a pellet counter of claim 1, further comprising a sieving mechanism, wherein the drop channel further comprises a sieving section located between the detection section and the outlet, the sieving section having one product inlet and two product outlets, the two product outlets being a good product outlet and a bad product outlet, respectively;
the products to be detected enter the detection section after passing through the detection section, and the screening mechanism controls the products to be detected to leave the detection section from the good product outlet and the defective product outlet;
the screening mechanism is electrically connected with the central control host.
5. The global visual appearance recognition screening apparatus for a counting machine according to claim 4, wherein the screening mechanism includes a controllable barrier that switches between a first attitude and a second attitude;
the controllable baffle is in a first posture, and the product inlet is communicated with the good product outlet;
and when the controllable baffle is in the second posture, the product inlet is communicated with the defective product outlet.
6. The global visual appearance recognition screening apparatus for a counting machine according to claim 5, wherein the controllable baffle is based on a servo motor or a pneumatic cylinder drive;
the servo motor or the air cylinder is controlled based on the central control host.
7. The global visual appearance recognition screening apparatus for a counting machine as claimed in claim 1, wherein said drop channel is provided with a non-contact counting mechanism at said outlet;
the working direction of the non-contact counting mechanism faces to the falling channel;
the non-contact counting mechanism is electrically connected with the central control host.
8. The global visual appearance recognition screening apparatus for a counting machine of claim 1, wherein the number of drop channels is two or more;
the global visual appearance recognition sieve inspection equipment further comprises a convergence structure, the convergence structure comprises a convergence inlet positioned at the upper end and a convergence outlet positioned at the lower end, and a convergence cabin is arranged between the convergence inlet and the convergence outlet;
the outlets of all the falling channels are respectively communicated with the convergence inlet.
9. The global visual appearance recognition screening apparatus for a tablet counting machine of claim 8, wherein a blanking baffle is disposed between the convergence bin and the convergence outlet, the blanking baffle being switchable between a first attitude and a second attitude;
the collecting cabin is communicated with the collecting outlet when the blanking baffle is in a first posture;
the blanking baffle is in a second posture, and the space between the convergence cabin and the convergence outlet is cut off by the blanking baffle;
and the posture of the blanking baffle is controlled based on the central control host.
10. The global visual appearance recognition screening apparatus for a pellet counter of claim 8, wherein the convergence pod comprises a first convergence pod and a second convergence pod arranged in a vertical direction;
a separation baffle is arranged between the first gathering cabin and the second gathering cabin;
the separation baffle switches between a first posture and a second posture;
the first gathering cabin is communicated with the second gathering cabin when the separating baffle is in the first posture;
when the separating baffle is in the second posture, the space between the first convergence cabin and the second convergence cabin is cut off by the separating baffle;
the posture of the separation baffle is controlled based on the central control host.
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