Visual inspection automatic sorting device

Abstract

The utility model relates to the technical field of automatic sorting, in particular to a visual inspection automatic sorting device which comprises a conveying frame, the top of the conveying frame is in transmission connection with a conveying belt through a driving mechanism, a U-shaped frame is arranged at the end, close to a sorting opening, of the conveying frame, and a visual inspection module is installed on the inner wall of the top of the U-shaped frame. Rotators are installed on the two sides of the inner wall of the top of the U-shaped frame, positioning shafts are arranged at the bottom ends of the rotators, the outer portions of the bottom ends of the positioning shafts are sleeved with positioning sleeves, position correcting assemblies are fixed to the positioning sleeves, and each position correcting assembly is composed of a guide plate and a guide roller. And a displacement sensor for detecting the position deviation of the product is arranged at the front end of the guide plate. According to the automatic sorting device for visual inspection, the positions of products conveyed on the conveying belt can be corrected, so that the visual inspection equipment can obtain high-quality image information, and the accuracy and efficiency of sorting are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic sorting technical field, concretely is a kind of visual inspection automatic sorting device. BACKGROUND

[0002] With the continuous improvement of industrial automation level, automatic sorting technology is increasingly widely used in logistics, manufacturing and other industries. In recent years, with the development of computer vision technology and the progress of sensor technology, visual inspection automatic sorting device emerges as the times require, greatly improves the accuracy and speed of sorting. These devices usually include image acquisition system, data processing unit and mechanical execution mechanism and several key components, can realize the rapid identification and classification of target object, and according to the preset rule carries out accurate sorting operation.

[0003] Although the existing visual inspection automatic sorting device has been widely applied, in actual application, the product on conveying belt is prone to deviation in conveying process, which is mainly caused by the speed fluctuation of conveying belt, irregular product shape or uneven weight distribution, etc. Once the product deviates, it will affect the imaging quality of visual inspection equipment, lead to inaccurate image information extraction, thereby affecting the final sorting result, and the deviation will also increase the false detection rate of the system, reduce the overall operation efficiency, and may cause problems in subsequent packaging, storage and other links. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of visual inspection automatic sorting device to solve the problem that the product on conveying belt is prone to deviation in the actual application of current visual inspection automatic sorting device, leading to the decline of imaging quality and the increase of sorting error rate.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of visual inspection automatic sorting device, including conveying frame, the top of the conveying frame is drivenly connected with conveying belt by drive mechanism, the end of the conveying frame close to sorting port is equipped with U-shaped frame, visual inspection module is installed on the top inner wall of the U-shaped frame, and the both sides of the top inner wall of the U-shaped frame are equipped with rotator, the bottom of the rotator is equipped with positioning shaft, positioning sleeve is sleeved on the outside of the bottom of the positioning shaft, and position correction assembly is fixed on the positioning sleeve, the position correction assembly is composed of guide plate and guide roller, and the front end of the guide plate is equipped with displacement sensor for detecting product position deviation.

[0006] Preferably, the side of the positioning shaft is fixed with air cylinder, and the output end of the air cylinder is fixedly connected with the outer wall of positioning sleeve through connecting piece.

[0007] Preferably, the upper end of the outer side of the guide plate is fixed with a strip-shaped frame, and the top end of the guide roller is connected with the bottom of the strip-shaped frame through a rotating shaft.

[0008] Preferably, the outer wall of the bottom end of the positioning shaft is surrounded with a plurality of guide protrusions, and the inner wall of the positioning sleeve is surrounded with a plurality of guide grooves matched with the structure of the guide protrusions.

[0009] Preferably, the two sides of the connection part of the positioning sleeve and the guide plate are provided with reinforcing ribs, and the connection part of the reinforcing ribs and the positioning sleeve and the guide plate is fixed by welding.

[0010] Preferably, the guide rollers are uniformly distributed on the outer side of the guide plate, and the outer part of the guide roller is detachably provided with a flexible sheath.

[0011] Compared with the prior art, the visual detection automatic sorting device can correct the position of the products conveyed on the conveying belt, so that the visual detection equipment can obtain high-quality image information, and the accuracy and efficiency of sorting are improved. The device realizes precise adjustment of the position of the products by real-time monitoring of the position of the products by the displacement sensor, and the cooperative work of the cylinder, the rotator, the positioning shaft, the positioning sleeve, the guide plate and the guide roller, so that the products can maintain a good and neat state before being conveyed to the sorting port. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a visual detection automatic sorting device structural schematic view of the utility model;

[0013] Fig. 2 It is a guide plate outer side structural schematic view of the visual detection automatic sorting device of the utility model;

[0014] Fig. 3 It is a guide plate overhead structure schematic view of the visual detection automatic sorting device of the utility model.

[0015] In the drawing: 1, conveying frame; 2, conveying belt; 3, U-shaped frame; 4, guide plate; 5, guide roller; 6, cylinder; 7, rotator; 8, positioning shaft; 9, positioning sleeve; 10, displacement sensor; 11, visual detection module; 12, strip-shaped frame; 13, guide protrusion; 14, reinforcing rib. DETAILED DESCRIPTION

[0016] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0017] Please refer to Figs. 1-3The utility model provides a kind of technical scheme: a visual inspection automatic sorting device, including conveying frame 1, conveying frame 1 top is connected with conveying belt 2 by drive mechanism transmission, the end of conveying frame 1 close to sorting mouth is equipped with U-shaped frame 3, visual inspection module 11 is installed on the top inner wall of U-shaped frame 3, visual inspection module 11 is existing standard industrial visual inspection equipment, its model is Cognex In-Sight 9000 series, and both sides of the top inner wall of U-shaped frame 3 are fixedly installed with rotator 7 by linear guide rail, rotator 7 can be transversely displaced on the top inner wall of U-shaped frame 3 by slider on linear guide rail, the bottom of rotator 7 is fixed with the positioning shaft 8 that is vertically distributed by connecting block, positioning sleeve 9 is equipped on the outside of the bottom of positioning shaft 8, and position correction assembly is fixed on positioning sleeve 9, and the position correction assembly is composed of guide plate 4 and guide roller 5, guide roller 5 is equipped with several and is rotatably connected on the outside of guide plate 4, and the front end of guide plate 4 is equipped with displacement sensor 10 for detecting product position deviation, displacement sensor 10 is photoelectric displacement sensor, model is GS-1G-AG-B100-C05-D01, displacement sensor 10 is connected with rotator 7 by wire, when the product on conveying belt 2 deviates due to various reasons, displacement sensor 10 first detects the position deviation of product and transmits signal to control system, control system starts rotator 7 immediately, and rotator 7 is transversely displaced by linear guide rail on the top inner wall of U-shaped frame 3, drives the adjustment of positioning shaft 8 and positioning sleeve 9 connected therewith, until positioning sleeve 9 drives position correction assembly, i.e. guide plate 4 and guide roller 5 are adjusted to appropriate position on conveying belt 2, so that guide plate 4 can be contacted with the product on conveying belt 2 by several guide rollers 5 rotation, and appropriate correction force is applied, so that the product deviating from center line gradually returns to correct position, while displacement sensor 10 continuously monitors the position change of product in the whole process, ensures that position correction assembly can respond in real time and make correct adjustment action, finally makes the product maintain good neat state before conveying to sorting mouth, provides high-quality detection condition for visual inspection module 11, obtains high-quality image information, and further improves the accuracy and efficiency of sorting, one block is fixed with pneumatic cylinder 6 on the side of positioning shaft 8, pneumatic cylinder 6 is also connected with displacement sensor 10 by wire, and the output end of pneumatic cylinder 6 is fixedly connected with the outer wall of positioning sleeve 9 by connecting piece, when pneumatic cylinder 6 drives, it will push or pull positioning sleeve 9 to displace in vertical direction along positioning shaft 8, and further drives the up-and-down movement of whole position correction assembly (including guide plate 4 and guide roller 5), realizes the vertical position fine adjustment of position correction assembly, ensures that guide roller 5 can contact with the product on conveying belt 2 with best contact pressure, thereby improves the accuracy and flexibility of position correction,The guide roller 5 of this structure can rotate freely around the rotating shaft under the constraint of the strip-shaped frame 12, which not only reduces the frictional resistance between the guide roller 5 and the product, but also ensures that the guide roller 5 can smoothly follow the movement trajectory of the product to adjust, thereby effectively guiding the product back to the correct conveying path. The outer wall of the bottom end of the positioning shaft 8 is circumferentially welded with a plurality of guide protrusions 13, and a plurality of guide grooves that cooperate with the guide protrusions 13 are circumferentially arranged on the inner wall of the positioning sleeve 9. When the cylinder 6 drives the positioning sleeve 9 to move vertically along the positioning shaft 8, the guide protrusions 13 will slide synchronously in the guide grooves of the positioning sleeve 9. Thus, the position correction assembly can be smoothly and accurately adjusted vertically, effectively preventing the shaking or misalignment that may occur during adjustment. The two sides of the connection between the positioning sleeve 9 and the guide plate 4 are provided with reinforcing ribs 14, and the connection between the reinforcing ribs 14 and the positioning sleeve 9 and the guide plate 4 is welded. This structure can significantly enhance the structural strength and stability between the positioning sleeve 9 and the guide plate 4, avoiding structural deformation or rupture due to long-term use or large external forces, ensuring the rigidity of the guide plate 4 during product position correction. The guide rollers 5 are evenly distributed on the outside of the guide plate 4, and a flexible sheath is detachably arranged outside the guide rollers 5. The flexible sheath of this structure not only reduces the hard collision between the guide rollers 5 and the product, but also allows the replacement of flexible sheaths of different materials or thicknesses according to different product types, thereby adapting to products with different surface characteristics and reducing the risk of product surface damage. The flexible sheath is also easy to clean or replace regularly, ensuring that the guide rollers 5 always maintain good working condition.

[0018] Working principle: When using the visual detection automatic sorting device, first, the conveying belt 2 on the conveying frame 1 starts to operate through the driving mechanism, and the conveying belt 2 conveys the product towards the sorting port. When the product approaches the sorting area, the displacement sensor 10 detects the deviation of the product and sends a signal to the control system. After receiving the signal, the control system starts the rotator 7, which moves horizontally on the inner wall of the U-shaped frame 3 through the linear guide, driving the positioning shaft 8 and the positioning sleeve 9 to adjust until the positioning sleeve 9 drives the guide plate 4 and the guide roller 5 to adjust to the appropriate position on the conveying belt 2. The guide plate 4 contacts the product on the conveying belt 2 through the guide rollers 5 and applies appropriate correction force, allowing the product deviating from the center line to gradually return to the correct position. At the same time, the cylinder 6 drives the positioning sleeve 9 to move vertically along the positioning shaft 8. When the positioning sleeve 9 moves, the guide grooves slide along the outside of the guide protrusions 13. Until the positioning sleeve 9 drives the position correction assembly to move up and down to achieve vertical position fine adjustment, the product will better maintain a good and orderly state under the guidance of the guide roller 5 before being conveyed to the sorting port, providing high-quality detection conditions for the visual detection module 11, thereby completing a series of work.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A visual inspection automatic sorting device, comprising a conveyor frame (1), wherein a conveyor belt (2) is connected to the top of the conveyor frame (1) via a drive mechanism, characterized in that: The conveyor frame (1) has a U-shaped frame (3) at one end near the sorting port. A visual inspection module (11) is installed on the top inner wall of the U-shaped frame (3). Rotators (7) are installed on both sides of the top inner wall of the U-shaped frame (3). A positioning shaft (8) is provided at the bottom of the rotating shaft (7). A positioning sleeve (9) is fitted on the outside of the bottom of the positioning shaft (8). A position correction component is fixed on the positioning sleeve (9). The position correction component consists of a guide plate (4) and a guide roller (5). A displacement sensor (10) for detecting product position deviation is provided at the front end of the guide plate (4).

2. The automatic sorting device for visual inspection according to claim 1, characterized in that: A cylinder (6) is fixed on one side of the positioning shaft (8), and the output end of the cylinder (6) is fixedly connected to the outer wall of the positioning sleeve (9) through a connector.

3. The automatic sorting device for visual inspection according to claim 1, characterized in that: The upper end of the outer side of the guide plate (4) is fixed with a strip frame (12), and the top of the guide roller (5) is connected to the bottom of the strip frame (12) through a rotating shaft.

4. The automatic sorting device for visual inspection according to claim 1, characterized in that: The outer wall of the bottom end of the positioning shaft (8) is surrounded by a number of guide protrusions (13), and the inner wall of the positioning sleeve (9) is surrounded by a number of guide grooves that cooperate with the structure of the guide protrusions (13).

5. The automatic sorting device for visual inspection according to claim 1, characterized in that: The positioning sleeve (9) and the guide plate (4) are provided with reinforcing ribs (14) on both sides, and the reinforcing ribs (14) are connected to the positioning sleeve (9) and the guide plate (4) by welding.

6. The automatic sorting device for visual inspection according to claim 1, characterized in that: The guide rollers (5) are evenly distributed on the outside of the guide plate (4), and the guide rollers (5) are detachably covered with a flexible protective sleeve.

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