CN115180213A - Appearance detection system for transparent paper of C800 small cigarette packet - Google Patents
Appearance detection system for transparent paper of C800 small cigarette packet Download PDFInfo
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- CN115180213A CN115180213A CN202210838051.6A CN202210838051A CN115180213A CN 115180213 A CN115180213 A CN 115180213A CN 202210838051 A CN202210838051 A CN 202210838051A CN 115180213 A CN115180213 A CN 115180213A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
- B65B19/28—Control devices for cigarette or cigar packaging machines
- B65B19/30—Control devices for cigarette or cigar packaging machines responsive to presence of faulty articles, e.g. incorrectly filled cigarettes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B57/00—Automatic control, checking, warning, or safety devices
- B65B57/10—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
- B65B57/14—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to control, or stop, the feed of articles or material to be packaged
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Abstract
The invention discloses a C800 cigarette packet transparent paper appearance detection system, which comprises: the cigarette packet conveying belt is annularly arranged, a plurality of cigarette packet pushing strips are arranged on the cigarette packet conveying belt, a triggering optical fiber is arranged on the inner side of an inlet of a cigarette packet, a camera is arranged above the cigarette packet conveying belt, a removing mechanism and a shifting optical fiber are arranged at the lower end of the cigarette packet conveying belt, a light source is arranged above the camera, and the triggering optical fiber is used for triggering the camera to take a picture; the camera is used for photographing each cigarette packet; the shifting optical fiber is used for detecting cigarette packet push strips, and the removing mechanism is used for removing unqualified cigarette packets; the controller is used for obtaining a detection result of the defects of the transparent paper of the cigarette packet according to the photographing result, sending a working instruction to the shifting optical fiber and the rejecting mechanism when the cigarette packet has the defects, and performing shifting counting according to signals of the shifting optical fiber. According to the appearance detection system for the transparent paper of the C800 small cigarette packet, the defective cigarette packet which appears when the transparent paper is wrapped by the small cigarette packet is identified in a visual detection mode and is removed in a shifting mode, so that defective products are prevented from flowing into the next procedure.
Description
Technical Field
The invention relates to the technical field of cigarette processing equipment, in particular to a transparent paper appearance detection system for a C800 small cigarette packet.
Background
The GD3000-C800 packer is the mainstream cigarette packing equipment of the existing cigarette wrapping industry, and the C800 part of the packing equipment is mainly responsible for the operations of cutting, packing, ironing and shaping transparent paper of small cigarette packets. When the small cigarette packet is conveyed to a packing station, a whole piece of rectangular transparent paper is conveyed in place, and the transparent paper of the small cigarette packet is flatly wrapped on the cigarette packet through folding and high-temperature ironing of the top, the bottom and the side surfaces. During the cutting, transporting, packaging, ironing and shaping processes of the transparent paper (also called small oil seal), the situations of small transparent paper deflection, bag scattering, scratching, creasing and the like easily occur.
At present, after the C800 packaging unit packs the transparent paper, no related quality detection is carried out on small cigarette packets wrapping the transparent paper, the small cigarette packets packaged by the transparent paper directly enter the next procedure, if the cigarette packets with packaging defects flow into the next procedure, dozens of continuously produced cigarettes need to be reworked manually, and a large amount of manpower, material resources and raw auxiliary materials are wasted.
Therefore, a transparent paper appearance detection system for a C800 small cigarette packet is needed.
Disclosure of Invention
The invention aims to provide a C800 small cigarette packet transparent paper appearance detection system, which is used for solving the problems in the prior art, identifying the defective cigarette packets such as deflection, loose package, scratch, crease and the like when the small cigarette packets wrap the transparent paper, and performing displacement elimination through a controller to effectively avoid the defective products from flowing into the next procedure.
The invention provides a system for detecting the appearance of transparent paper of a C800 small cigarette packet, which comprises:
tobacco bale transportation belt that the annular set up, the equidistant a plurality of tobacco bales that are provided with pushes away the strip on the tobacco bale transportation belt, and the tobacco bale transportation belt inboard of tobacco bale entrance is provided with triggers optic fibre, tobacco bale transportation belt top is provided with the camera, the camera top is provided with the light source, the lower extreme of tobacco bale transportation belt is provided with rejects mechanism and aversion optic fibre, the below of tobacco bale transportation belt is provided with the qualified tobacco bale conveyer belt that is used for carrying next process with qualified tobacco bale, trigger optic fibre with the camera is connected, trigger optic fibre the camera aversion optic fibre with it is connected with the controller respectively to reject the mechanism, wherein:
the cigarette packet conveying belt and the cigarette packet pushing strip act together to convey small cigarette packets packaged with transparent paper to the qualified cigarette packet conveying belt;
the triggering optical fiber is used for triggering the camera to take a picture;
the camera is used for photographing each cigarette packet passing through the triggering optical fiber;
the light source is used for illuminating the camera;
the shifting optical fiber is used for detecting the cigarette packet push strip passing through the shifting optical fiber;
the rejecting mechanism is used for rejecting unqualified tobacco packets and carrying out displacement rejection on the unqualified tobacco packets according to the passing number of the tobacco packet push strips;
the controller is used for obtaining a transparent paper defect detection result of the cigarette packet according to a photographing result of the camera, sending a working instruction to the shifting optical fiber and the rejecting mechanism when the transparent paper defect detection result of the cigarette packet is defective, enabling the shifting optical fiber and the rejecting mechanism to start working in response to the working instruction, and performing shifting counting according to a signal generated by the shifting optical fiber in the cigarette packet strip pushing movement.
The appearance detection system for the transparent paper of the C800 small cigarette packet is characterized in that the triggering optical fiber is arranged in front of the shaping heat-sealing belt and is parallel to the cigarette packet conveying belt.
As mentioned above, in the appearance detection system for transparent paper of C800 small cigarette packets, preferably, the removing mechanism includes an original removing system, and an optical coupling isolation relay is arranged between the controller and the removing mechanism.
As described above, in the appearance detection system for transparent paper of C800 small cigarette packets, preferably, an original manual rejection I/O point and an original PLC controller are further sequentially disposed between the optical coupling isolation relay and the rejection mechanism.
The appearance detection system for transparent paper of C800 small cigarette packets preferably further comprises a power module, which is respectively connected to the controller and the light source and is used for supplying power to the controller, the triggering optical fiber, the camera, the shifting optical fiber and the light source; the power module is a direct-current power supply and is connected with the original main power cabinet of the machine.
The appearance detection system for the transparent paper of the C800 small cigarette packet is characterized in that the light source comprises an LED light source.
As described above, preferably, the appearance detection system for transparent paper of C800 small cigarette packets further includes a support rod installed on a main frame of the C800 packaging machine, the support rod is located above the cigarette packet conveying belt, a camera bracket is installed on the support rod in a downward inclination direction for installing the camera, and a light source bracket is installed on the support rod in an upward inclination direction for installing the light source.
The appearance detection system for the transparent paper of the C800 small cigarette packet is preferably configured such that the support rod is cylindrical, so that the camera support and the light source support can rotate around the support rod and move axially along the support rod.
The appearance detection system for the transparent paper of the cigarette packet of the C800 small box is characterized in that the camera support and the light source support are perpendicular to each other, and the camera support and the horizontal direction of the cigarette packet are 15-80 degrees.
The appearance detection system for the transparent paper of the C800 small cigarette packet is characterized in that the controller preferably comprises a programmable logic controller.
The invention provides a C800 cigarette packet transparent paper appearance detection system, which adopts a visual detection mode to identify cigarette packets with defects of deflection, loose packets, scratch, crease and the like when the transparent paper is wrapped by a cigarette packet in a small box, and carries out displacement elimination through a controller, thereby effectively avoiding defective products from flowing into the next procedure; can adapt to different production speeds and can be applied to cigarette products of different production brands; the triggering optical fiber and the shifting optical fiber can be provided with threshold values according to debugging conditions, so that the optical fiber detection device can adapt to various detection environments; the cigarette packet with the defects of the small transparent paper can be detected, and the defects of products such as the small cigarette packet scraping, the folding and the like can be detected; the light is supplemented through a light source, so that the stable image exposure is ensured, the detection frame is associated in a side positioning mode, the product error rejection caused by the position fluctuation of the cigarette packet can be avoided, the stability is effectively improved, and the waste is reduced; the operation is stable, efficient and reliable, and the adjustment and maintenance are easy.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings, in which:
fig. 1 is a schematic installation position diagram of an embodiment of a C800 small cigarette packet transparent paper appearance detection system provided by the invention;
fig. 2 is a block diagram of the structure of an embodiment of a C800 cigarette packet transparent paper appearance detection system provided by the invention;
fig. 3 is a schematic light ray diagram of an embodiment of a C800 small cigarette packet transparent paper appearance detection system provided by the invention when detecting that a smooth cigarette packet is wrapped by transparent paper;
fig. 4 is a schematic diagram of an embodiment of a C800 cigarette packet cellophane paper appearance detection system in small cigarette packets provided by the invention when detecting that the cellophane paper wraps uneven cigarette packets;
fig. 5 is a schematic side positioning diagram of an embodiment of a C800 small cigarette packet transparent paper appearance detection system provided by the present invention;
fig. 6 is a schematic diagram of a pixel distribution curve of a whole image in an imaging process of the appearance detection system of the C800 cigarette packet in the small box.
Description of reference numerals: the method comprises the following steps of 1-triggering optical fibers, 2-cigarette packet conveying belts, 3-cigarette packet pushing strips, 4-shifting optical fibers, 5-removing mechanisms, 6-camera supports, 7-cameras, 8-light source supports, 9-light sources, 10-supporting rods, 11-controllers, 12-optical coupling isolation relays, 13-original machine manual removing I/O points, 14-original machine PLC controllers, 15-power supply modules and 16-original machine main power cabinets.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.
As used in this disclosure, "first", "second": and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be intervening components between the specific component and the first component or the second component. When it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without having an intervening component, or may be directly connected to the other components without having an intervening component.
All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
The existing C800 unit has no relevant detection, and the existing GDX1/X2 unit is provided with a correlation optical fiber for loose package detection. The detection optical fibers are arranged in the process of packaging the small box of transparent paper, and after the side face edge sealing is finished and before the top and the bottom edge sealing are carried out, 2 groups of opposite emission type optical fibers are arranged on two sides of a packaging channel of the small box of cigarette packets. The inner side is provided with an optical fiber transmitting end and a receiving end, and the transmitting end emits red laser which passes through the upper surface of the cigarette packet and is 1-2mm away from the upper surface. The outer side of the laser is provided with a reflector, and the reflector reflects the laser emitted from the emitting end into the receiving end. 2 group correlation formula laser detects cigarette package upper surface and lower surface respectively, and when the scattered package condition appeared in capsule tobacco bale cellophane, the cellophane was protruding on upper and lower surface, blocked correlation formula optic fibre's transmitting terminal and receiving terminal, and the luminance that the optic fibre receiving terminal collected the light receives the influence to this judges whether the transparent paper scattered package condition appears in the tobacco bale.
The optical fiber correlation type bale breaking detection scheme has the following problems:
(1) The optical fiber correlation type bale breaking detection can only detect the condition that the transparent paper bale breaking of a part of small cigarette packets is tilted, and can not detect the defective cigarette packets with transparent paper wrinkles and transparent paper losses.
(2) The optical fiber correlation type loose package detection can only detect the quality defects generated before the edges of the top and the bottom of the transparent paper of the small box are sealed, and the conditions of transparent paper wrinkles, transparent paper scratch and the like generated in the top and the bottom edge sealing process and the transportation channel can not be effectively detected.
(3) The optical fiber correlation type scatter-package detection is only suitable for the CH part of GDX1/X2, the process flow and the equipment structure of the GD3000-C800 unit are completely different from those of the GDX1/X2, and the original scatter-package detection cannot be used for the unit.
(4) The optical fiber correlation type loose package detection can only detect the upper surface and the lower surface, and can not detect the cigarette packet with the defects of sealed edge folding, pulling line loss, abnormal label paper packaging and the like.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a system for detecting an appearance of a transparent paper of a C800 small cigarette packet, including: cigarette packet transport belt 2 that the annular set up, equidistant a plurality of cigarette packets push away strip 3 that are provided with on cigarette packet transport belt 2, and 2 inboards of cigarette packet transport belt at the cigarette packet entrance are provided with trigger optical fiber 1, 2 tops of cigarette packet transport belt are provided with camera 7, camera 7 top is provided with light source 9, the lower extreme of cigarette packet transport belt 2 is provided with rejects mechanism 5 and aversion optic fibre 4, the below of cigarette packet transport belt 2 is provided with and is used for carrying qualified cigarette packet to the qualified cigarette packet conveyer belt (not shown) of next process, trigger optical fiber 1 with camera 7 is connected, trigger optical fiber 1 camera 7 aversion optic fibre 4 with it is connected with controller 11 respectively to reject mechanism 5, wherein:
the cigarette packet conveying belt 2 and the cigarette packet pushing strip 3 work together to convey small cigarette packets (for example, in a counterclockwise direction) wrapped with transparent paper to the qualified cigarette packet conveying belt;
the triggering optical fiber 1 is used for triggering the camera 7 to take a picture;
the camera 7 is used for photographing each cigarette packet passing through the triggering optical fiber 1;
the light source 9 is used for illuminating the camera 7;
the shifting optical fiber 4 is used for detecting the cigarette packet push strip 3 passing through the shifting optical fiber;
the rejecting mechanism 5 is used for rejecting unqualified tobacco packets and carrying out displacement rejection on the unqualified tobacco packets according to the passing number of the tobacco packet push strips 3;
the controller 11 is configured to obtain a detection result of the defect of the transparent paper of the cigarette packet according to the photographing result of the camera 7, and send a working instruction to the shift optical fiber 4 and the removing mechanism 5 when the detection result of the defect of the transparent paper of the cigarette packet is defective, so that the shift optical fiber 4 and the removing mechanism 5 start to work in response to the working instruction, and perform shift counting according to a signal generated by the shift optical fiber 4 moving on the cigarette packet push bar 3.
The triggering optical fiber 1 is arranged in front of the shaping heat-sealing belt and is parallel to the cigarette packet conveying belt 2.
Further, the light source 9 is an LED light source, and in operation, the light source 9 is normally on, and is used for adjusting the brightness of the image and maintaining the illumination and definition of the image.
Further, the controller 11 is a Programmable Logic Controller (PLC), and the quality defect cigarette packet such as transparent paper loss, loose packet, crease can be identified through the controller 11. Specifically, the controller 11 is installed in an electric cabinet box installed at the rear of the body of the C800 packing machine. In the present invention, the PLC is model number siemens 200. It should be noted that the present invention does not specifically limit the type of PLC.
Further, the rejecting mechanism 5 comprises an original machine rejecting system, and as shown in fig. 2, an optical coupling isolation relay 12 is arranged between the controller 11 and the rejecting mechanism 5. Furthermore, an original machine manual rejection I/O point 13 and an original machine PLC (programmable logic controller) 14 are sequentially arranged between the optical coupling isolation relay 12 and the rejection mechanism 5. The input end of the controller 11 is connected with the camera 7, the trigger optical fiber 1 and the shift optical fiber 4, and the output end of the controller 11 is connected with the input end of the optical coupling isolation relay 12, so that signals of the controller and control signals of an original machine are isolated from each other, and interference is avoided. The output end of the optical coupling isolation relay 12 is connected to an original machine manual rejection I/O point 13.
Furthermore, the appearance detection system for the transparent paper of the C800 small cigarette packet further comprises a power module 15, which is respectively connected with the controller 11 and the light source 9, and is used for supplying power to the controller 11, the triggering optical fiber 1, the camera 7, the shifting optical fiber 4 and the light source 9; the power module 15 is a dc power supply and is connected to an original main electrical cabinet 16. Illustratively, the power supply module 15 is a + DC24V power supply, the + DC24V power supply is collected from the original main cabinet 16, when the original main switch is closed, the DC24V DC power supply is sent to the controller 11 and the sensor (the trigger optical fiber 1, the camera 7 and the shift optical fiber 4) at the input end, the appearance detection system of the transparent paper of the C800 small cigarette packet starts to work, the DC24V supplies power to the light source 9 at the same time, and the light source 9 is normally on, so that the stability of photographing exposure is ensured.
The rated running speed of the GD3000 packing unit is 600 bags/minute, and the execution time of detecting, processing and rejecting each cigarette is only 100ms. In order to shorten the execution time as much as possible, the present invention adopts a mode that the triggering optical fiber is directly connected with the triggering optical fiber 1 without passing through the controller 11. Specifically, the 24V end and the 0V end of the trigger optical fiber 1 are respectively connected to the 24V input end and the 0V end of the controller 11, an output signal line of the trigger optical fiber 1 is directly connected with a trigger photographing signal line of the camera 7, when the controller 11 determines that the camera 7 detects a defective cigarette packet according to a photographing result of the camera, a working instruction is sent to the shift optical fiber 4, shift counting is carried out according to a cigarette packet push pulse input by the shift optical fiber 4, when a set value is counted, a rejection signal is output to the optical coupling isolation relay 12, the optical coupling isolation relay 12 inputs the signal into a manual rejection signal point (namely, an original machine manual rejection I/O point 13) of an original machine system, and the rejection mechanism 5 of the original machine rejects the defective cigarette packet at a corresponding position. In some embodiments of the present invention, the camera 7 has an image processing function, and can determine whether a defective cigarette packet is detected through image recognition and processing, when the defective cigarette packet is detected, the camera 7 outputs a rejection signal to the controller 11, and after the controller 11 receives the rejection signal, the controller performs shift counting according to a cigarette packet push pulse input by the shift optical fiber 4.
Further, the appearance detection system for the transparent paper of the C800 small cigarette packet further comprises a support rod 10 which is installed on a main frame of the C800 packaging machine, the support rod 10 is located above the cigarette packet conveying belt 2, a camera support 6 is installed on the support rod 10 in the downward inclined direction and used for installing the camera 7, and a light source support 8 is installed on the support rod 10 in the upward inclined direction and used for installing the light source 9.
Specifically, the support rod 10 is cylindrical, so that the camera support 6 and the light source support 8 can rotate around the support rod 10 and move axially along the support rod 10. In concrete implementation, the camera support 6 and the light source support 8 can rotate around the support rod 10 for 360 degrees and move axially along the support rod 10 as required, so that the detection position and the detection direction can be adjusted conveniently. In the present invention, the mounting positions, shapes, materials, and the like of the support bar 10, the camera mount 6, and the light source mount 8 are not particularly limited.
In an embodiment of the invention, the camera support 6 and the light source support 8 are perpendicular to each other, and the horizontal direction of the camera support 6 and the cigarette packet is 15-80 degrees, for example, 30 degrees, so that the imaging effect can be ensured to be stable, and qualified products and defective products can be accurately distinguished when defective products occur. As shown in fig. 3, when the cigarette packet is wrapped by the transparent paper of the small cigarette packet smoothly, light emitted from the light source 9 passes through the cigarette packet and is subjected to mirror emission, at this time, the cigarette packet image shot by the camera 7 is not bright, and the brightness of the pixel points of the image is normal; as shown in fig. 4, when the front surface of the cigarette packet is uneven, the light emitted by the light source 9 irradiates the front surface of the cigarette packet, the diffuse reflection occurs, the diffuse reflection light reaches the camera 7, the brightness of the image pixel point is abnormal, and a line, a point and an area which are brighter than a normal image are formed, and the controller 11 can judge whether the cigarette packet is qualified according to the brightness change of the fixed area.
Further, the camera 7 is an industrial smart camera having an image processing function, such as a conoscopic camera. The normal production rate of the GD3000-C800 unit is 600 packages/minute, and the time for each package to pass is about 100ms. In the production process, the cigarette packet conveying belt 2 for conveying cigarette packets moves at a constant speed, the distance between adjacent cigarette packet pushing strips 3 is about 120mm, the average movement speed of the cigarette packet conveying belt 3 is about 1.2m/s, the minimum exposure time of the camera 7 is 1ms, and the cigarette packet moving distance is about 1.2mm in the exposure time. In production, conditions such as transportation fluctuation and cigarette packet reflection change exist, and the triggering photographing time also fluctuates to a certain extent, so that the position of a cigarette packet image in a picture shot by imaging detection can move relatively. Therefore, when the images are processed, the method of edge positioning is adopted, so that the detection frame and the cigarette packet images are relatively static, the detection frame is ensured to be positioned at the same position of the cigarette packet images, and the detection accuracy is ensured.
As shown in fig. 5, the image captured by the camera 7 includes a cigarette packet image a, a first detection frame b, a second detection frame c, a third detection frame d, a packing pattern e, and an edge recognition tool f. The number of the detection boxes and the edge recognition tools can be increased to n according to needs. When the lower edge of the cigarette packet is used as a reference during image processing, a side positioning tool is adopted, all detection tools are set to be related to a side identification tool f, when the position of the cigarette packet in an image relatively moves (a dotted line frame in figure 5 represents an image after the position of the cigarette packet fluctuates), the positioning reference is found by identifying the side in the image, the relative position of the detection frame moves along with the side, and when the image of each cigarette packet is processed, each detection frame is ensured to be at the same position of the cigarette packet image, so that the detection stability is ensured. In specific implementation, an edge recognition tool can be selected in a detection and debugging software interface, and the tool effectively ensures the stability of image processing.
In the imaging process of the camera 7, the whole image is subjected to black-and-white binarization processing, that is, the brightness is divided into 0 to 255 levels according to the difference of brightness and darkness of pixel points on the image, and the corresponding levels are called as gray values. When the gradation value is 0, it is judged as full black, and when the gradation value is 255, it is judged as full white. Under the condition that the cigarette packet is qualified, the pixel brightness fluctuation detected by each detection frame at the same position of the cigarette packet is small. When the transparent paper on the surface of the cigarette packet is wrinkled, folded and the like, light is subjected to diffuse reflection on the uneven transparent paper, the result shown on the image is that the brightness of pixel points at corresponding positions is increased, the corresponding pixel points are presented in a mathematical statistics mode, and a pixel distribution curve graph of the whole image is obtained, as shown in fig. 6.
In specific implementation, a value β between 0 and 255 can be set in the pixel setting as a gray threshold, a pixel with brightness greater than the threshold β is determined as a white pixel, a pixel with brightness less than the threshold β is determined as a black pixel, and when the number of white pixels (i.e., the area of the white region) is greater than S 1 And judging the cigarette packet as a defect.
Defining a gray value of x i (0<i<255 Identical to each other)Within each detection frame, the gray value is x i The number of the pixel points is y i ，y＝f(x)，
When x is i When the color is not less than the color β, determining the area of the pixel point determined to be white according to the following formula:
when S > S 1 When the cigarette packet is judged to be defective, the camera 7 outputs a removing signal to the controller to control the removing mechanism 5 of the original machine to remove the defective cigarette packet.
The invention adopts a black-white binary image processing mode, can quantize the color image in a mode of black and white pixel point brightness, is convenient for digital processing, and can adjust the gray value according to images at different positions to realize fine adjustment detection so as to achieve the detection purpose.
In operation, when the trigger optical fiber 1 detects that a cigarette packet passes through, a signal is output to the camera 7, the camera 7 takes a picture, the controller 11 sends a working instruction to the shift optical fiber 4 when determining that the camera 7 detects a defective cigarette packet according to a picture taking result of the camera, shift counting is performed according to a cigarette packet push pulse input by the shift optical fiber 4, each cigarette packet push bar 3 passes through the shift optical fiber 4, the controller 11 performs shift counting once, when a set value (for example, 13 packets) is counted, the signal is output to the original machine manual rejection I/O point 13, the duration of the output signal is 200ms, and the rejection mechanism 5 of the original machine starts to reject the cigarette packet. And resetting the removing signal when the timing time of 200ms is over, and stopping removing the cigarette packet by the removing mechanism 5 of the original machine. And (3) detecting the defective tobacco bale again in the removing process, resetting the timer, timing from 0, resetting the removing signal after 200ms, and stopping removing.
According to the appearance detection system for the transparent paper of the C800 small cigarette packet, provided by the embodiment of the invention, the visual detection mode is adopted, the cigarette packets with the defects of deflection, loose package, scratch, crease and the like when the transparent paper is wrapped by the small cigarette packet are identified, the controller is used for carrying out displacement elimination, and the defect products are effectively prevented from flowing into the next procedure; can adapt to different production speeds and can be applied to cigarette products of different production brands; the triggering optical fiber and the shifting optical fiber can be provided with threshold values according to debugging conditions, so that the optical fiber detection device can adapt to various detection environments; the cigarette packet with the defects of the small transparent paper can be detected, and the defects of products such as the small cigarette packet scraping, the folding and the like can be detected; the light is supplemented through a light source, the stable image exposure is ensured, the detection frame is associated in a side positioning mode, the product error picking caused by the fluctuation of the position of the cigarette packet can be avoided, the stability is effectively improved, and the waste is reduced; the operation is stable, efficient and reliable, and the adjustment and maintenance are easy.
Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (10)
1. The utility model provides a C800 capsule tobacco bale cellophane outward appearance detecting system which characterized in that includes:
cigarette packet transportation belt that the annular set up, the equidistant a plurality of cigarette packets that are provided with pushes away the strip on the cigarette packet transportation belt, and the cigarette packet transportation belt inboard of cigarette packet entrance is provided with triggers optic fibre, cigarette packet transportation belt top is provided with the camera, the camera top is provided with the light source, the lower extreme of cigarette packet transportation belt is provided with rejects mechanism and aversion optic fibre, the below of cigarette packet transportation belt is provided with the qualified cigarette packet conveyer belt that is used for carrying qualified cigarette packet next process, trigger optic fibre with the camera is connected, trigger optic fibre the camera shift optic fibre with reject the mechanism and be connected with the controller respectively, wherein:
the cigarette packet conveying belt and the cigarette packet pushing strip act together and are used for conveying small cigarette packets packaged with transparent paper to the qualified cigarette packet conveying belt;
the triggering optical fiber is used for triggering the camera to take a picture;
the camera is used for photographing each cigarette packet passing through the triggering optical fiber;
the light source is used for illuminating the camera;
the shifting optical fiber is used for detecting the cigarette packet push strips passing through the shifting optical fiber;
the rejecting mechanism is used for rejecting unqualified tobacco packets and carrying out displacement rejection on the unqualified tobacco packets according to the passing number of the tobacco packet push strips;
the controller is used for obtaining a detection result of the transparent paper defect of the cigarette packet according to the photographing result of the camera, sending a working instruction to the shifting optical fiber and the removing mechanism when the detection result of the transparent paper defect of the cigarette packet is defective, enabling the shifting optical fiber and the removing mechanism to start working in response to the working instruction, and performing shifting counting according to a signal generated by the shifting optical fiber in the cigarette packet strip pushing movement.
2. The system according to claim 1, wherein the triggering optical fiber is arranged in front of the shaping heat-sealing belt and parallel to the cigarette packet conveying belt.
3. The system for detecting the appearance of the transparent paper of the C800 small cigarette packet as claimed in claim 1, wherein the removing mechanism comprises an original removing system, and an optical coupling isolation relay is arranged between the controller and the removing mechanism.
4. The appearance detection system for C800 cigarette packets with small cartons of transparent paper as claimed in claim 3, wherein an original manual removing I/O point and an original PLC are sequentially arranged between the optical coupling isolation relay and the removing mechanism.
5. The appearance detection system for transparent paper of a C800 small cigarette packet according to claim 1, characterized in that the appearance detection system for transparent paper of a C800 small cigarette packet further comprises a power module respectively connected to the controller and the light source for supplying power to the controller, the trigger optical fiber, the camera, the shift optical fiber and the light source; the power module is a direct-current power supply and is connected with the original main power cabinet of the machine.
6. The system according to claim 1, wherein the light source comprises an LED light source.
7. The system for detecting the appearance of the transparent paper of the C800 small cigarette packet as claimed in claim 1, further comprising a support rod installed on a main frame of the C800 packaging machine, wherein the support rod is located above the cigarette packet conveying belt, a camera bracket is installed on the support rod in an inclined downward direction for installing the camera, and a light source bracket is installed on the support rod in an inclined upward direction for installing the light source.
8. The system as claimed in claim 7, wherein the support rod is cylindrical so that the camera holder and the light source holder can rotate around the support rod and move axially along the support rod.
9. The appearance detection system for transparent paper of C800 cigarette packets as claimed in claim 8, wherein the camera support and the light source support are perpendicular to each other, and the camera support is at an angle of 15 ° to 80 ° to the horizontal direction of the cigarette packets.
10. The system according to claim 1, wherein the controller comprises a programmable logic controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210838051.6A CN115180213A (en) | 2022-07-16 | 2022-07-16 | Appearance detection system for transparent paper of C800 small cigarette packet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210838051.6A CN115180213A (en) | 2022-07-16 | 2022-07-16 | Appearance detection system for transparent paper of C800 small cigarette packet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115180213A true CN115180213A (en) | 2022-10-14 |
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ID=83519570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210838051.6A Pending CN115180213A (en) | 2022-07-16 | 2022-07-16 | Appearance detection system for transparent paper of C800 small cigarette packet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115180213A (en) |
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2022
- 2022-07-16 CN CN202210838051.6A patent/CN115180213A/en active Pending
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