Automatic detection and kicking-out mechanism

Abstract

The utility model relates to the technical field of cap screwing after filling, and discloses an automatic detecting and kicking-out mechanism which comprises an equipment shell, a visual detecting mechanism, a sorting executing mechanism and a rotating disc mechanism, the top of the equipment shell is rotationally connected with a control cabinet, and a cabinet door is hinged to the interior of the equipment shell; the bottom end of the inner wall of the equipment shell is fixedly connected with an HMI (Human Machine Interface); the rotating disc mechanism comprises a rotating disc, and the bottom of the rotating disc is fixedly connected with a servo motor. According to the utility model, the cap screwing mechanism is arranged to detect the shape of a bottle cap and the distance from the bottom edge of the cap to a bottle shoulder through visual imaging and a Hough transformation algorithm according to the shape characteristics and materials of the cap; through SIFT feature matching and comparison with a preset standard position, a quality judgment signal containing an NG type code (poor sealing / cover screwing deflection angle / large distance dislocation) is generated, the in-place screwing consistency of the cover is ensured all the time, liquid leakage can be effectively prevented, the product quality guarantee period is prolonged, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filling and screwing cap technology field especially relates to a kind of automatic detection and kick out mechanism. BACKGROUND

[0002] In modern industrial production, screwing cap process is an indispensable part of product packaging link in many industries, and is widely used in food and beverage, medicine and health care, daily chemical and cosmetic fields. With the continuous growth of market demand and the development of product diversification, higher and higher requirements are put forward for the performance and adaptability of screwing cap equipment.

[0003] Traditional screwing cap mode gradually exposes many problems in practical application. As for the clamping screwing cap mode long-term used in screwing cap industry, its adaptability to cap shape characteristics and material is poor. The caps of different products differ significantly in shape, size, material and other aspects, and the clamping screwing cap mode is difficult to achieve precise matching. For example, in the pharmaceutical industry, some special-shaped or fragile material caps are easily deformed by extrusion during clamping, which not only affects the appearance integrity of the cap, but also may damage its sealing performance, thereby threatening the quality and shelf life of the medicine. In the daily chemical industry, for some caps with unique appearance design and irregular shape, it is difficult to ensure stable clamping force and accurate rotation angle during clamping and screwing, which may cause loose or skewed screwing, increasing the risk of product leakage.

[0004] In addition, an existing automatic detection and kick-out mechanism, the traditional screwing cap equipment has obvious deficiencies in the design of screwing cap head. Most screwing cap heads lack flexibility and universality, and when different types of caps need to be switched for production, a complex and tedious adjustment process is often faced. Usually, professional technicians need to use special tools for disassembly, replacement and re-commissioning, which not only consumes a lot of time and labor cost, but also causes production interruption, seriously affecting production efficiency. Moreover, in the long-term production process, due to frequent contact and friction with the cap, the parts of the screwing cap head are easily worn out, further reducing the accuracy and stability of the screwing cap.

[0005] Furthermore, in terms of achieving good sealing effect, the traditional screwing cap mode faces great challenges. Poor sealing effect may cause serious problems such as product leakage and deterioration, directly affecting product quality and enterprise reputation. The traditional clamping screwing cap mode is difficult to accurately control various parameters in the screwing cap process, such as screwing cap force, screwing cap angle and depth, and cannot ensure that each cap can achieve ideal sealing state. Especially for some products with high sealing requirements, such as packaging of flammable, explosive, sterile or highly corrosive liquids, the limitations of traditional screwing cap mode are more obvious, and it cannot meet the strict quality standards and safety specifications. SUMMARY

[0006] The utility model provides a kind of automatic detection and kick out mechanism to solve the above technical problems.

[0007] The utility model adopts following technical scheme realization: a kind of automatic detection and kick out mechanism, including equipment shell, visual detection mechanism, sorting execution mechanism and carousel mechanism, the top of the equipment shell is rotatably connected with control cabinet, the inside hinged of the equipment shell has cabinet door, the inner wall bottom end of the equipment shell is fixedly connected with HMI man-machine interface;

[0008] The carousel mechanism includes carousel, the bottom of the carousel is fixedly connected with servo motor, and the servo motor is fixedly connected to the inner wall bottom end of the equipment shell.

[0009] The visual detection mechanism includes sheet metal support, the sheet metal support is fixedly connected at the top of carousel, the inside of the sheet metal support is fixedly connected with square light source, the surface of the carousel mechanism is fixedly connected with push rod, the top of the push rod is fixedly connected with CCD camera group, and the inner wall bottom end of the equipment shell is fixedly connected with image processor.

[0010] The sorting execution mechanism includes defective product collection area, the defective product collection area is fixedly connected to the inner wall bottom end of the equipment shell, and the bottom of the carousel is fixedly connected with kick-out cylinder group.

[0011] Through the above technical scheme, the inside of the mounting seat is also provided with a bottle positioning cylinder, which is installed below the ball screw. The bottle positioning cylinder is used for bottle shape positioning.

[0012] As a further improvement of the above scheme, the push rod is fixedly connected to the rear end of the defective product collection area, and the defective product collection area is located at the top of the image processor.

[0013] As a further improvement of the above scheme, the sorting execution mechanism includes an image processor and a defective product collection area, and the HMI man-machine interface is composed of an integrated PLC module, which is used to coordinate the timing matching of conveying speed, image acquisition frequency and sorting action.

[0014] Through the above technical scheme, the cylinder and the push block, when the visual detection is NG, the carousel turns the bottle to the NG kick-out position, and the cylinder push block assembly pushes the defective product into the defective product buffer storage area.

[0015] As a further improvement of the above scheme, the CCD camera group uses a single telecentric lens, which can perform multi-angle image acquisition.

[0016] As a further improvement of the above scheme, the square light source is a multi-band composite light source, comprising: nm white square light module, for highlighting the bottle cap edge features; nm white diffuse light module, for enhancing the imaging contrast of the transparent sealing ring; white light stroboscopic module, synchronized with the CCD camera group trigger signal.

[0017] As a further improvement of the above scheme, the sorting actuator is provided with a two-stage sorting channel, comprising: a first-stage horizontal air cylinder for pushing the NG products into a waste channel; a second-stage inclined air cylinder for guiding the NG products into a rework channel; and the kick-out air cylinder group is equipped with a magnetic sensor for feeding back the push rod action to the control system in real time.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The utility model discloses a cap rotating mechanism is set up according to the shape feature and material of the cover, and the Hough transform algorithm is used to detect the shape of the bottle cap, and the distance from the cover bottom edge to the bottle shoulder is detected through visual imaging, and the SIFT feature matching is compared with the preset standard position, and the quality judgment signal containing NG type code (poor sealing / cap rotating angle / distance misplacement) is generated, so that the consistency of the cover rotation is always ensured, liquid leakage can be effectively prevented, the product shelf life is prolonged, and the product quality is improved, the cap rotating detection is efficient, and the production efficiency is improved: the indexing plate moves the bottle cap to the detection position, the flying shot is collected, the poor product is automatically judged and kicked out, the personnel waiting for the machine is reduced several times in the abnormal time, the overall production efficiency is improved, the equipment maintenance time is reduced, the production continuity is ensured, and the use efficiency of the equipment is further improved.

[0020] The utility model discloses a whole equipment has the algorithm control of accurate and stable: industrial camera pixel precision: 0.057mm / pixel, field of view range: 58MM*40mm, camera resolution: 600W [1 / 1.8", 2.4 μm, 3072*2048;Camera working distance: 120mm light source working distance: 10mm;The imaging is good and high in definition, and the judgment rate of the feature (poor sealing / cap rotating angle / distance misplacement) is high and misjudgment is not made. ACCURACY

[0021] Figure 1 It is the whole structure schematic diagram of the utility model;

[0022] Figure 2 It is the cabinet door split structure schematic diagram of the utility model;

[0023] Figure 3 It is the structure enlarged schematic diagram of the utility model A place;

[0024] Figure 4 It is the cabinet door split right view structure schematic diagram of the utility model;

[0025] Figure 5 It is right view structural schematic diagram of the utility model.

[0026] Main symbol explanation:

[0027] 1, equipment shell;2, control cabinet;3, cabinet door;4, HMI man-machine interface;10, turntable mechanism;11, turntable;12, servo motor;20, visual inspection mechanism;21, sheet metal frame;22, CCD camera group;23, square light source;24, image processor;30, sorting execution mechanism;31, defective product collection area;32, kick-out cylinder group;311, push rod. DETAILED DESCRIPTION

[0028] In the following, the utility model is further described in combination with the drawings and specific embodiments, and it should be noted that the following described embodiments or technical features can be combined to form new embodiments without conflict. EMBODIMENT

[0029] Please combine Figures 1-5 , an automatic detection and kick-out mechanism of the embodiment, including equipment shell 1, visual inspection mechanism 20, sorting execution mechanism 30 and turntable mechanism 10, the top of equipment shell 1 is rotatably connected with control cabinet 2, the inside of equipment shell 1 is hingedly connected with cabinet door 3, the inner wall bottom end of equipment shell 1 is fixedly connected with HMI man-machine interface 4;

[0030] Turntable 11 mechanism 10 includes turntable 11, the bottom of turntable 11 is fixedly connected with servo motor 12, servo motor 12 is fixedly connected at the inner wall bottom end of equipment shell 1;

[0031] Visual inspection mechanism 20 includes sheet metal frame 21, sheet metal frame 21 is fixedly connected at the top of turntable 11, the inside of sheet metal frame 21 is fixedly connected with square light source 23, the surface of turntable 11 mechanism 10 is fixedly connected with push rod 311, the top of push rod 311 is fixedly connected with CCD camera group 22, the inner wall bottom end of equipment shell 1 is fixedly connected with image processor 24;

[0032] The sorting execution mechanism 30 includes a defective product collection area 31 fixedly connected to the inner wall bottom end of the equipment shell 1, and a kicking-out air cylinder group 32 fixedly connected to the bottom of the rotating disc 11. The cap shape feature and material are detected by visual imaging and Hough transform algorithm, the cap bottom edge to bottle shoulder distance is detected, the SIFT feature matching is compared with the preset standard position to generate a quality judgment signal containing NG type code (seal defect / cap angle deviation / distance misplacement), the cap is always ensured to be rotated in place, liquid leakage is effectively prevented, product shelf life is prolonged, and product quality is improved. The high-efficiency cap detection and production efficiency improvement: the indexing disc moves the bottle cap to the detection position, the flying shot is collected, the defective product is automatically determined and kicked out, the personnel waiting for the machine is reduced several times in the abnormal state, the overall production efficiency is improved, the equipment maintenance time is reduced, the production continuity is ensured, and the use efficiency of the equipment is further improved.

[0033] The inside of the mounting seat is also provided with a bottle positioning air cylinder installed below the ball screw, which is used for bottle shape positioning.

[0034] The push rod 311 is fixedly connected to the rear end of the defective product collection area 31, and the defective product collection area 31 is located at the top of the image processor 24.

[0035] The sorting execution mechanism 30 includes the image processor 24 and the defective product collection area 31, and the HMI human-computer interface 4 is composed of an integrated PLC module and is used for coordinating the conveying speed, image acquisition frequency and timing matching of the sorting action.

[0036] Air cylinder and push block: when the visual detection is NG, the rotating disc 11 rotates the bottle to the NG kicking-out position, the air cylinder push block assembly pushes the defective product into the defective product buffer storage area, and the whole device is provided with precise and stable algorithm control: industrial camera pixel accuracy: 0.057mm / pixel, field of view range: 58MM*40mm, camera resolution: 600W [1 / 1.8”, 2.4 μm, 3072*2048; camera working distance: 120mm, light source working distance: 10mm; high imaging clarity, high feature (seal defect / cap angle deviation / distance misplacement) judgment rate and no misjudgment.

[0037] The CCD camera group 22 adopts a single telecentric lens and can perform multi-angle image acquisition.

[0038] The square light source 23 is a multi-band composite light source, including: a nm white square light module for highlighting the bottle cap edge feature; a nm white diffuse light module for enhancing the imaging contrast of the transparent sealing ring; and a white light frequency flash module synchronized with the CCD camera group 22 trigger signal.

[0039] The sorting actuator 30 sets a two-stage sorting channel, including: a first-stage transverse air cylinder for pushing NG products into a waste channel; a second-stage oblique air cylinder for guiding the NG products into a rework channel; and the kick-out air cylinder group 32 is equipped with a magnetic sensor to feed back the action of the push rod 311 to the control system in real time.

[0040] The implementation principle of the automatic detection and kick-out mechanism in the embodiment of the application is as follows: a rotary cap mechanism is set to detect the shape of a cap and the distance from the bottom edge of the cap to the shoulder of the bottle through visual imaging and Hough transform algorithm; a quality judgment signal containing an NG type code (poor sealing / cap angle deviation / large distance misplacement) is generated by comparing the SIFT feature matching with a preset standard position, so as to ensure the consistency of the cap rotation, effectively prevent liquid leakage, prolong the shelf life of the product, and improve the quality of the product; the efficient cap detection and production efficiency improvement: the indexing disc moves the bottle cap to the detection position, the flying shot is collected, the poor product is automatically judged and kicked out, the number of times of personnel waiting for the machine is reduced in the abnormal state, the overall production efficiency is improved, the equipment maintenance time is reduced, the production continuity is ensured, the use efficiency of the equipment is further improved, the overall equipment is set to have precise and stable algorithm control: the pixel accuracy of the industrial camera is 0.057 mm / pixel, the field of view is 58 mm*40 mm, the camera resolution is 600 W [1 / 1.8", 2.4 μm, 3072*2048; the working distance of the camera is 120 mm, the working distance of the light source is 10 mm; the imaging is clear, the feature (poor sealing / cap angle deviation / distance misplacement) judgment rate is high, and no misjudgment occurs.

[0041] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application all belong to the scope of protection required by the present application.

Claims

1. An automatic detection and kick-out mechanism, characterized by, Including equipment shell (1), visual detection mechanism (20), sorting execution mechanism (30) and carousel mechanism (10), the top of the equipment shell (1) is rotatably connected with the control cabinet (2), the inside of the equipment shell (1) is hingedly connected with the cabinet door (3), the inner wall bottom of the equipment shell (1) is fixedly connected with HMI man-machine interface (4); The carousel mechanism (10) includes a carousel (11), the bottom of the carousel (11) is fixedly connected with a servo motor (12), the servo motor (12) is fixedly connected to the inner wall bottom of the equipment shell (1); The visual detection mechanism (20) includes a sheet metal frame (21), the sheet metal frame (21) is fixedly connected to the top of the carousel (11), the inside of the sheet metal frame (21) is fixedly connected with a square light source (23), the surface of the carousel mechanism (10) is fixedly connected with a push rod (311), the top of the push rod (311) is fixedly connected with a CCD camera group (22), the inner wall bottom of the equipment shell (1) is fixedly connected with an image processor (24); The sorting execution mechanism (30) includes a defective product collection area (31), the defective product collection area (31) is fixedly connected to the inner wall bottom of the equipment shell (1), the bottom of the carousel (11) is fixedly connected with a kick-out cylinder group (32).

2. An automatic detection and kick-out mechanism as claimed in claim 1, characterized in that: The push rod (311) is fixedly connected to the rear end of the defective product collection area (31), and the defective product collection area (31) is located on the top of the image processor (24).

3. The automatic detection and kick-out mechanism of claim 1, wherein: The sorting execution mechanism (30) includes an image processor (24) and a defective product collection area (31), the HMI man-machine interface (4) is composed of an integrated PLC module, used for coordinating the conveying speed, the image acquisition frequency and the timing matching of the sorting action.

4. The automatic detection and kick-out mechanism of claim 1, wherein: The CCD camera group (22) adopts a single telecentric lens, which can perform 0-180° multi-angle image acquisition.

5. The automatic detection and kick-out mechanism of claim 1, wherein: The square light source (23) is a multi-band composite light source, including: a 20nm white square light module for highlighting the edge features of the bottle cap; a 600nm white diffuse light module for enhancing the imaging contrast of the transparent sealing ring; a white light frequency flash module synchronized with the CCD camera group (22) trigger signal.

6. An automatic detection and kick-out mechanism as claimed in claim 1, wherein: The sorting execution mechanism (30) sets up a two-stage sorting channel, including: a first horizontal cylinder for pushing the NG product into a waste channel; a second inclined cylinder for guiding the NG product into a rework channel; the kick-out cylinder group (32) is equipped with a magnetic sensor, which feeds back the push rod action to the control system in real time.

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