Telescopic removing mechanism of belt conveyor

Abstract

The utility model relates to the technical field of removing mechanisms, and discloses a telescopic removing mechanism of a belt conveyor, which comprises a rack and a movement device arranged on the rack, a control system is arranged on the rack, and the movement device is driven and controlled by the control system to work; the moving device comprises a driving unit, a conveying belt, a pneumatic telescopic unit, a carrier roller unit, a transmission unit and a tensioning unit. The conveying belt is located on the carrier roller units and makes friction movement with the surface of the transmission unit, the two carrier roller units are symmetrically arranged at the two ends of the upper side of the conveying belt and used for keeping tension of the conveying belt, and the pneumatic telescopic unit is located in the middle area of the two carrier roller units and arranged on the lower side of the conveying belt. The transmission unit is located on the lower portion of the conveying belt and works in cooperation with the conveying belt, the driving unit is arranged on the rack corresponding to the position of the transmission unit, the tensioning unit is arranged at one end of the upper side of the conveying belt, and a 3D visual inspection camera is arranged in the area, used for conveying materials, of the conveying belt.

Description

Technical Field

[0001] This utility model relates to the field of rejection mechanism technology, specifically to a telescopic rejection mechanism for belt conveyors. Background Technology

[0002] In industrial automated production lines such as food, logistics, and packaging, belt conveyors are widely used as a basic conveying method. However, during the material conveying process, due to the low efficiency and inconsistency of manual intervention, traditional belt conveyors usually lack the ability to automatically identify and reject unqualified materials. On the one hand, ordinary belt conveyors cannot adjust the conveying path in real time according to the material status. On the other hand, if materials are manually identified and rejected, it not only increases labor costs but also poses the risk of missed or incorrect rejection, affecting product quality and production efficiency.

[0003] To address this issue, the industry has gradually introduced technologies such as image recognition and automated rejection mechanisms, attempting to build rejection systems with autonomous recognition and execution capabilities. Currently, some automated conveying equipment has integrated visual inspection functions, but most rely on electric robotic arms or push rods for rejection, resulting in large action delays and slow response times. These are unsuitable for the real-time rejection requirements of high-speed conveyor lines, and the rejection accuracy is limited, easily interfering with adjacent materials.

[0004] Against this backdrop, a telescopic rejection mechanism for belt conveyors is proposed. Through pneumatic drive and visual recognition linkage control, the rejection action is completed instantly, and the reasonable structural design ensures stable conveying. This mechanism can improve rejection efficiency and accuracy. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a telescopic rejection mechanism for belt conveyors, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The belt conveyor telescopic rejection mechanism includes a frame and a motion device mounted on the frame. A control system is installed on the frame to drive and control the motion device.

[0008] The motion device includes a drive unit, a conveyor belt, a pneumatic telescopic unit, an idler roller unit, a transmission unit, and a tensioning unit. The conveyor belt moves by friction between the idler roller unit and the transmission unit. There are two sets of idler roller units, symmetrically arranged at both ends of the upper side of the conveyor belt to maintain the tension of the conveyor belt. The pneumatic telescopic unit is located in the middle area of ​​the two sets of idler roller units and is set on the lower side of the conveyor belt. The transmission unit is located at the lower part of the conveyor belt and works in conjunction with the conveyor belt. The drive unit is set on the frame at the position corresponding to the transmission unit. The tensioning unit is located at one end of the upper side of the conveyor belt. A 3D vision inspection camera is set in the area of ​​the conveyor belt used to transport materials.

[0009] Optionally, the transmission unit includes a first drive roller, a second drive roller, a first steering roller, and a second steering roller;

[0010] A support shaft is provided on the frame corresponding to the position of the first drive roller. The end of the support shaft away from the frame is rotatably connected to the first drive roller. One side of the conveyor belt passes through the support shaft and connects to the lower surface of the first drive roller.

[0011] The conveyor belt passes through the first drive roller and then contacts the first steering roller and the second drive roller in sequence. The second drive roller is located above the second drive roller, and the second steering roller is located below the second drive roller.

[0012] Optionally, a bracket is provided on the lower side of the idler unit. The bracket is bolted to the frame and a scraper is provided on the bracket. The front end of the scraper contacts the surface of the conveyor belt at the corresponding position.

[0013] Optionally, a protective plate is inclinedly installed on the frame, and a waste bin is installed on the lower side of the frame corresponding to the inclined direction of the protective plate.

[0014] This utility model provides a telescopic rejection mechanism for belt conveyors, which has the following beneficial effects:

[0015] 1. The conveyor belt, together with the idler roller unit and the transmission unit, forms a complete support and transmission system. In addition, the tensioning unit effectively prevents the belt from loosening, running off-center or skipping teeth, ensuring the overall smoothness and continuity of operation.

[0016] 2. By setting up a 3D vision inspection camera in conjunction with a pneumatic telescopic unit, it is possible to quickly identify and immediately remove non-conforming materials. The removal action is rapid and the positioning is accurate, which improves the efficiency of automated removal and is suitable for high-speed production scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the waste bin structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the drive unit structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the motion device structure of this utility model.

[0021] In the diagram: 1. Frame; 2. Motion device; 21. Drive unit; 22. Conveyor belt; 23. Pneumatic telescopic unit; 24. Idler roller unit; 241. Support; 242. Scraper; 25. Transmission unit; 251. First drive roller; 252. Second drive roller; 253. First steering roller; 254. Second steering roller; 26. Tensioning unit; 27. 3D vision inspection camera; 3. Control system; 11. Support shaft; 12. Protective plate; 13. Waste bin. Detailed Implementation

[0022] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] In the description of this utility model, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] This application proposes a telescopic rejection mechanism for belt conveyors, the details of which are as follows:

[0025] For reference Figure 1 The machine consists of a frame 1 and a motion device 2 mounted on the frame 1. A control system 3 is mounted on the frame 1. The control system 3 drives and controls the motion device 2 to work, thereby completing the overall drive and realizing the belt conveyor's extension and rejection functions.

[0026] For reference Figure 1 The frame 1 is the supporting structure of the overall mechanism, which is used to support the installation and fixation of the overall device. This is a common design method in the present application, and will not be described in detail here.

[0027] For reference Figure 1The telescopic rejection operation is achieved through the motion device 2, and the driving process is uniformly controlled by the control system 3. This method is a common existing automation control technology, and the control system 3 will not be described again in this application.

[0028] For reference Figure 1-4 The motion device 2, driven by the control system 3, mainly includes a drive unit 21, a conveyor belt 22, a pneumatic telescopic unit 23, an idler roller unit 24, a transmission unit 25, and a tensioning unit 26. The conveyor belt 22 moves by friction between the idler roller unit 24 and the transmission unit 25. The conveyor belt 22 maintains the stability of its rotational motion mainly through the idler roller unit 24 and the transmission unit 25. Specifically, the idler roller unit 24 has two sets, symmetrically arranged at both ends of the upper side of the conveyor belt 22 to maintain the necessary motion tension of the conveyor belt 22. Furthermore, a tensioning unit 26 is provided at one end of the upper side of the conveyor belt 22. Through the cooperation of the tensioning unit 26, it is a structural component used to adjust and maintain the appropriate tension of the conveyor belt 22. The purpose is to prevent the belt from falling off, skipping teeth, or running off-center due to slack, while reducing wear and noise and ensuring smooth operation. The lower end of the belt is further driven by the transmission unit 25, thus the upper and lower parts cooperate to promote the overall smoothness of its movement.

[0029] It should be noted that a 3D vision inspection camera is installed in the area on the upper surface of the conveyor belt 22. The 3D vision inspection camera can be installed on the frame 1 of this application structure or on other structures in the area. As long as it can visually inspect the materials conveyed on the conveyor belt 22, the signal is transmitted to the control system 3. After processing, the control system 3 drives the pneumatic telescopic unit 23 to work, thereby realizing the rapid identification and immediate rejection of unqualified materials. The rejection action is rapid and the positioning is accurate.

[0030] The pneumatic telescopic unit 23 is located in the middle area of ​​the two sets of idler roller units 24 and is set on the lower side of the conveyor belt 22. The upper part of the conveyor belt 22 is provided with a telescopic belt section. By controlling the pneumatic telescopic unit 23 to drive the telescopic belt section to extend or retract rapidly, a momentary displacement action is formed, causing the unqualified biscuits to deviate from the main conveying trajectory and fall into the powder receiving tray or waste area, so as to achieve the purpose of precise rejection.

[0031] For reference Figure 1-4The transmission unit 25 further includes a first drive roller 251, a second drive roller 252, a first steering roller 253, and a second steering roller 254. These four sets of rollers enable the movement of the conveyor belt 22. A support shaft 11 is provided on the frame 1 at the position corresponding to the first drive roller 251. The end of the support shaft 11 away from the frame 1 is rotatably connected to the first drive roller 251. One side of the conveyor belt 22 passes through the support shaft 11 and connects to the lower surface of the first drive roller 251. The conveyor belt passes through the first drive roller 251 and then contacts the first steering roller 253 and the second drive roller 252 in sequence. The second drive roller 252 is located on the upper side of the first drive roller 252, and the second steering roller 254 is located on the lower side of the second drive roller 252.

[0032] The drive unit 21 is positioned on the frame 1 corresponding to the position of the transmission unit 25. Specifically, the drive unit 21 is positioned corresponding to the position of the second steering roller 254. By driving the second steering roller 254 to move, the first steering roller 253 is driven to move, thereby causing the first drive roller 251 and the second drive roller 252 to rotate relative to each other, thus realizing the overall movement of the conveyor belt 22.

[0033] Furthermore, since debris may adhere to the surface of the conveyor belt 22 during the conveying process, in order to avoid subsequent movement, a bracket 241 is further provided on the lower side of the idler unit 24. The bracket 241 is installed on the frame 1 by bolts. A scraper 242 is provided on the bracket 241. The front end of the scraper 242 contacts the surface of the conveyor belt 22 at the corresponding position and scrapes off the debris on the surface of the conveyor belt 22 when the conveyor belt 22 moves.

[0034] In order to facilitate the collection of scraped debris, a protective plate 12 and a waste bin 13 are further provided. The protective plate 12 is inclined and mounted on the frame 1. When scraped debris falls into the area of ​​the protective plate 12, it can move along the inclined direction of the protective plate 12. The waste bin 13 is mounted on the frame 1 in the same inclined direction as the protective plate 12 to receive debris that falls along the protective plate 12 or falls directly onto the frame.

[0035] The protective plate 12 also reduces the amount of waste entering the area of ​​the idler roller unit 24 and the transmission unit 25, thus affecting their movement.

[0036] In this invention, the working steps of the device are as follows:

[0037] 1. First, the conveyor belt 22 arranges the conveyor material flat and conveys it forward. When it approaches the front end of the rejection section belt line, the 3D vision inspection camera installed in the corresponding position area performs real-time image recognition and comparison of parameters such as size, shape and position of the material. Once the material that does not meet the set standard is detected, the vision system will transmit the result to the control system 3 to judge the rejection signal.

[0038] 2. Secondly, the control system 3 drives the telescopic belt section to extend or retract rapidly by controlling the pneumatic telescopic unit 23, forming an instantaneous displacement action, so that the material that is judged to be unqualified deviates from the main conveying trajectory and falls into the powder receiving tray or waste area, so as to achieve the purpose of precise rejection.

[0039] 3. Finally, the transmission of the whole machine is powered by the drive unit 21, which works with the idler roller unit 24 and the tensioning unit 26 to ensure that the belt runs smoothly and with appropriate tension. During this period, the frame 1 provides the support structure. The transmission unit 25 is located on the lower side of the conveyor belt 22 and works to transmit power and adjust the direction of movement.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A belt conveyor stretch rejection mechanism, characterized by: The application relates to a conveying device, which comprises a rack (1) and a moving device (2) arranged on the rack (1), wherein the rack (1) is provided with a control system (3) for driving and controlling the moving device (2) to work. The moving device (2) comprises a driving unit (21), a conveying belt (22), a pneumatic telescopic unit (23), a roller unit (24), a transmission unit (25) and a tensioning unit (26); the conveying belt (22) is in surface frictional movement with the roller unit (24) and the transmission unit (25), wherein the roller unit (24) is provided with two groups of roller units, which are symmetrically arranged on the upper sides of the two ends of the conveying belt (22) and used for maintaining the tension of the conveying belt (22); the pneumatic telescopic unit (23) is arranged on the lower side of the conveying belt (22) in the middle region of the two groups of roller units (24); the transmission unit (25) is arranged on the lower part of the conveying belt (22) and cooperates with the conveying belt (22); the driving unit (21) is arranged on the rack (1) and corresponds to the position of the transmission unit (25); the tensioning unit (26) is arranged on the upper side of one end of the conveying belt (22); and 3D visual detection cameras (27) are arranged in the region of the conveying belt (22) used for conveying materials.

2. The belt conveyor retracting and ejecting mechanism according to claim 1, characterized in that: The transmission unit (25) comprises a first driving roller (251), a second driving roller (252), a first steering roller (253) and a second steering roller (254). The rack (1) is provided with a supporting shaft (11) corresponding to the position of the first driving roller (251); one end of the supporting shaft (11) is rotatably connected with the first driving roller (251) and away from the rack (1); and one side of the conveying belt (22) penetrates into the supporting shaft (11) and is connected with the lower surface of the first driving roller (251). The conveying belt passes through the first driving roller (251) and then contacts the first steering roller (253) and the second driving roller (252) in sequence; the second driving roller (252) is arranged on the upper side of the second driving roller (252); and the second steering roller (254) is arranged on the lower side of the second driving roller (252).

3. The belt conveyor retracting and ejecting mechanism according to claim 1, characterized in that: One side of the roller unit (24) is provided with a bracket (241), the bracket (241) is mounted on the rack (1) through bolts, a scraper (242) is arranged on the bracket (241), and the front end of the scraper (242) is in contact with the surface of the corresponding position of the conveying belt (22).

4. The conveyor belt stretch and reject mechanism of claim 1, wherein: The rack (1) is provided with a protection plate (12) arranged in an inclined mode, and a waste barrel (13) is arranged on the lower side of the rack (1) and corresponds to the inclined direction of the protection plate (12).

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