Tobacco leaf foreign matter detection camera fixing support

Abstract

The utility model belongs to the technical field of tobacco production auxiliary equipment, and particularly relates to a tobacco foreign matter detection camera fixing support which comprises a left supporting column, a right supporting column and a lifting frame, the left supporting column and the right supporting column are fixed to the two sides of a tobacco conveying belt, and the lifting frame is arranged over the top face of the tobacco conveying belt in a spaced mode. The top ends of the left supporting column and the right supporting column are rotationally connected with a torsion shaft, the middles of the left supporting column and the right supporting column are rotationally connected with a driven cross rod, the torsion shaft is located over the driven cross rod, an upper swing arm is fixed to the middle of the torsion shaft in a penetrating mode, a lower swing arm is fixed to the middle of the driven cross rod in a penetrating mode, and the upper swing arm and the lower swing arm are the same in specification. The lifting frame is driven to ascend and descend through the upper swing arm, the upper telescopic rod, the lower swing arm and the lower telescopic rod, the ascending stroke and the descending stroke of the lifting frame can be increased, the upper swing arm, the upper telescopic rod, the lower swing arm and the lower telescopic rod can stretch out and draw back, and the ascending stroke and the descending stroke of the lifting frame are further expanded and adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco production auxiliary equipment, and in particular relates to a fixing bracket for a tobacco leaf foreign body detection camera. Background Art

[0002] The tobacco leaf foreign body detection camera is fixed directly above the tobacco conveyor belt to detect foreign objects in the tobacco leaves during the conveyance process. Currently, the cameras used for tobacco leaf foreign body detection are usually fixed on the gantry or robotic arm and are fixed and adjusted according to the height of the extended conveyor belt. However, in actual use, the height of the detection camera needs to be adjusted at any time to cope with the size or spacing of the detection target.

[0003] Patent CN218441451U proposes an adjustable detection camera bracket for appearance inspection, including a fixing seat and an adjustment mechanism. A support mechanism for stable fixation is provided in the middle of the front end of the fixing seat, and the adjustment mechanism for adjusting the detection angle is provided in the middle of the front end of the support mechanism, and an installation mechanism for fixing the camera is installed inside the front end of the adjustment mechanism. The metal folding tube can be used to swing and adjust the angle to any angle, so that the front end mounting frame and the position of the detection camera after installation can be flexibly adjusted. The ball joint seat with damping properties can be used to adjust the angle of the mounting frame arbitrarily, so that with the cooperation of the metal folding tube, the bracket can flexibly adjust the direction of the camera according to the detection position after installation.

[0004] According to analysis, this type of adjustable inspection camera bracket for appearance inspection has the following shortcomings: First, when this type of adjustable inspection camera bracket for appearance inspection drives the camera to rise and fall, the angle of the camera will be deflected. At this time, the captured image and the required image will be misaligned and distorted due to the clamping; Second, this type of adjustable inspection camera bracket for appearance inspection cannot adjust the camera to a large range of rise and fall. Utility Model Content

[0005] The purpose of the utility model is to provide a tobacco leaf foreign body detection camera fixing bracket to solve the problems existing in the above-mentioned background technology.

[0006] To achieve the above purpose, the following technical solutions are adopted:

[0007] A tobacco leaf foreign body detection camera fixing bracket comprises a left support column and a right support column fixed on both sides of a tobacco leaf conveyor belt and a lifting frame arranged in the air just above the top surface of the tobacco leaf conveyor belt, the left support column and the right support column have the same specifications, the top ends of the left support column and the right support column are rotatably connected with a torsion shaft, the middle parts of the left support column and the right support column are rotatably connected with a driven cross bar, the torsion shaft is located just above the driven cross bar, an upper swing arm is fixed through the middle part of the torsion shaft, and the middle part of the driven cross bar is A lower swing arm is fixedly inserted into the upper part of the lifting frame, and the specifications of the upper swing arm and the lower swing arm are the same. The front end of the upper swing arm is movably engaged with an upper telescopic rod, and the front end of the lower swing arm is movably engaged with a lower telescopic rod. The front end of the upper telescopic rod is hinged to the top of the back of the lifting frame through an upper pin shaft, and the front end of the lower telescopic rod is hinged to the bottom of the back of the lifting frame through a lower pin shaft. The axial center distance between the upper pin shaft and the lower pin shaft is equal to the axial center distance between the torsion axis and the driven cross bar. A camera fixing hole is provided at the front end of the lifting frame.

[0008] Furthermore, a servo motor is fixed to one side of the top end of the left support column, and the output shaft of the servo motor is connected to the end of the torsion shaft through a clutch coupling.

[0009] Furthermore, the top surface of the lower swing arm is rotatably connected to an electric telescopic rod via a rotating shaft, a shaft frame is fixedly provided at the middle portion of the rear side of the lifting frame, and the telescopic portion of the electric telescopic rod is connected to the shaft frame via a rotating shaft.

[0010] Furthermore, a manual dial is concentrically fixed in series on the right end of the torsion shaft, and positioning teeth are evenly spaced apart on the outer circle side of the manual dial. A telescopic pin is fixed on the middle part of the outer wall of the right support column, and the telescopic part of the telescopic pin is adapted to be embedded in the positioning teeth.

[0011] Furthermore, the rear ends of the upper swing arm and the lower swing arm are fixed with a slot, and a counterweight block is embedded in the slot.

[0012] Furthermore, the clutch coupling is a multi-layer friction plate or an electromagnetic clutch disc.

[0013] The beneficial effects of the utility model are:

[0014] The upper swing arm and upper telescopic rod as well as the lower swing arm and lower telescopic rod of the present technical solution form a parallelogram structure. When the torsion axis is rotated, the upper swing arm, the upper telescopic rod and the upper pin shaft drive the lifting frame to move up and down. At the same time, the lower swing arm and the lower telescopic rod connected to the driven cross bar are also lifted up and down, so that the lifting frame moves in the vertical direction. At this time, the camera installed on the lifting frame is also lifted up and down vertically, so that the camera maintains a consistent shooting direction, so that the captured image will not be distorted due to angle deflection.

[0015] This technical solution drives the lifting frame to rise and fall by the upper swing arm and the upper telescopic rod as well as the lower swing arm and the lower telescopic rod, which can increase the lifting and lowering stroke of the lifting frame; in addition, the upper swing arm and the upper telescopic rod as well as the lower swing arm and the lower telescopic rod can be extended and retracted, thereby further expanding and adjusting the lifting and lowering stroke of the lifting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the left front side of the main structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the right rear side of the main structure of the utility model.

[0018] Figure 3 This is a schematic diagram of the camera lifting mechanism of the present utility model.

[0019] Description of reference numerals:

[0020] 1. Left support column; 2. Right support column; 3. Torsion shaft; 4. Driven crossbar; 5. Upper swing arm; 6. Lower swing arm; 7. Upper telescopic rod; 8. Lower telescopic rod; 9. Upper pin; 10. Lifting frame; 11. Lower pin; 12. Camera fixing hole; 13. Servo motor; 14. Electric telescopic rod; 15. Axle bracket; 16. Manual dial; 17. Positioning teeth; 18. Telescopic pin; 19. Slot; 20. Counterweight; 21. Clutch coupling. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1 、 2As shown in Figure 3, the present application provides a tobacco leaf foreign body detection camera fixing bracket, comprising a left support column 1 and a right support column 2 fixed on both sides of the tobacco leaf conveyor belt and a lifting frame 10 arranged in the air just above the top surface of the tobacco leaf conveyor belt. The left support column 1 and the right support column 2 have the same specifications. The top ends of the left support column 1 and the right support column 2 are rotatably connected with a torsion shaft 3. The middle parts of the left support column 1 and the right support column 2 are rotatably connected with a driven cross bar 4. The torsion shaft 3 is located just above the driven cross bar 4. An upper swing arm 5 is fixed through the middle of the torsion shaft 3. A lower swing arm 6 is fixed through the middle of the cross bar 4. The specifications of the upper swing arm 5 and the lower swing arm 6 are the same. The front end of the upper swing arm 5 is movably engaged with the upper telescopic rod 7, and the front end of the lower swing arm 6 is movably engaged with the lower telescopic rod 8. The front end of the upper telescopic rod 7 is hinged to the top of the back of the lifting frame 10 through the upper pin shaft 9, and the front end of the lower telescopic rod 8 is hinged to the bottom of the back of the lifting frame 10 through the lower pin shaft 11. The axial center distance of the upper pin shaft 9 and the lower pin shaft 11 is equal to the axial center distance of the torsion axis 3 and the driven cross bar 4. A camera fixing hole 12 is provided at the front end of the lifting frame 10.

[0023] In this application, the axis line connecting the upper pin shaft 9 and the lower pin shaft 11 is equal to the axis line connecting the torsion shaft 3 and the driven cross bar 4, and the axis line connecting the upper pin shaft 9 and the torsion shaft 3 is equal to the axis line connecting the lower pin shaft 11 and the driven cross bar 4, so that the upper swing arm 5 and the upper telescopic rod 7 and the lower swing arm 6 and the lower telescopic rod 8 form a parallelogram structure.

[0024] Among them, the camera fixing hole 12 is used to fix the camera. When the torsion shaft 3 is rotated clockwise, the torsion shaft 3 drives the lifting frame 10 to rise through the upper swing arm 5, the upper telescopic rod 7 and the upper pin shaft 9. At the same time, the lower swing arm 6 and the lower telescopic rod 8 connected to the driven cross bar 4 also rise, causing the lifting frame 10 to move in the vertical direction. At this time, the camera installed on the lifting frame 10 through the camera fixing hole 12 also rises vertically; similarly, when the torsion shaft 3 is rotated counterclockwise, the camera on the lifting frame 10 also descends vertically, so that the camera maintains a consistent shooting direction, so that the captured image will not be distorted due to angle deflection.

[0025] Furthermore, the lifting frame 10 is driven to move up and down by the upper swing arm 5 and the upper telescopic rod 7 as well as the lower swing arm 6 and the lower telescopic rod 8, thereby increasing the ascending and descending stroke of the lifting frame 10.

[0026] In addition, the upper swing arm 5 and the upper telescopic rod 7 as well as the lower swing arm 6 and the lower telescopic rod 8 can be telescoped, thereby further expanding and adjusting the ascending and descending stroke of the lifting frame 10.

[0027] In the present application, a servo motor 13 is fixed to one side of the top end of the left support column 1, and the output shaft of the servo motor 13 is connected to the end of the torsion shaft 3 via a clutch coupling 21. The servo motor 13 can drive the torsion shaft 3 to perform the aforementioned clockwise and counterclockwise deflection through the clutch coupling 21, thereby achieving automatic raising and lowering of the lifting frame 10.

[0028] In this application, the top surface of the lower swing arm 6 is rotatably connected to an electric telescopic rod 14 via a rotating shaft. A shaft bracket 15 is fixedly mounted in the middle of the rear side of the lifting frame 10. The telescopic portion of the electric telescopic rod 14 is connected to the shaft bracket 15 via a rotating shaft. The electric telescopic rod 14 and shaft bracket 15 can adjust the length of the linkage mechanism consisting of the upper swing arm 5 and upper telescopic rod 7, and the lower swing arm 6 and lower telescopic rod 8, thereby automatically extending and adjusting the lifting and lowering travel of the lifting frame 10.

[0029] In the present application, a manual dial 16 is concentrically fixedly connected in series to the right end of the torsion shaft 3. Positioning teeth 17 are evenly spaced apart on the outer circumference of the manual dial 16. A telescopic pin 18 is fixedly provided in the middle of the outer wall of the right support column 2. The telescopic portion of the telescopic pin 18 fits into the positioning teeth 17. When it is necessary to manually control the ascent and descent of the lifting frame 10, the clutch coupling 21 can be made to release the fixed connection between the servo motor 13 and the torsion shaft 3, and the telescopic portion of the telescopic pin 18 can be withdrawn from the positioning teeth 17. At this time, the manual dial 16 is rotated, and the manual dial 16 drives the torsion shaft 3 to deflect, causing the lifting frame 10 to perform the above-mentioned ascent and descent. After the lifting frame 10 is raised to the set height, the telescopic portion of the telescopic pin 18 can be re-engaged in the positioning teeth 17, maintaining the deflection angle of the manual dial 16, so that the lifting frame 10 can maintain the current shooting height and manually control the camera height.

[0030] In this application, the rear ends of the upper and lower swing arms 5 and 6 are each fixed with a slot 19, into which a counterweight 20 is inserted. Because the lifting frame 10 and the camera mounted thereon through the camera fixing hole 12 are heavy, the counterweight 20 is inserted into the slot 19 at the rear ends of the upper and lower swing arms 5 and 6, making it easier to adjust the height of the lifting frame 10 and the camera.

[0031] In the present application, the clutch coupling 21 is a multi-layer friction plate or an electromagnetic clutch disc. The multi-layer friction plate or electromagnetic clutch disc has the following characteristics: when the output shaft of the servo motor 13 and the torsion shaft 3 are coaxially connected, when the multi-layer friction plate is compressed, the servo motor 13 can drive the torsion shaft 3 to rotate. When the multi-layer friction plate is released, the output shaft of the servo motor 13 and the torsion shaft 3 are in a free state, and the rotation of the two does not affect each other. When the electromagnetic clutch disc is energized, the electromagnetic clutch disc installed at one end of the torsion shaft 3 is fixedly connected to the electromagnetic clutch disc installed on the output shaft of the servo motor 13. When the electromagnetic clutch disc is de-energized, the output shaft of the servo motor 13 and the torsion shaft 3 are in a free state, and the rotation of the two does not affect each other. At this time, the torsion shaft 3 can be rotated by the manual dial 16 to control the lifting frame 10 to rise and fall.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tobacco leaf foreign body detection camera fixing bracket, comprising a left support column (1), a right support column (2) fixed to both sides of a tobacco leaf conveyor belt, and a lifting frame (10) arranged in the air just above the top surface of the tobacco leaf conveyor belt, characterized in that: The left support column (1) and the right support column (2) have the same specifications. The top ends of the left support column (1) and the right support column (2) are rotatably connected to a torsion shaft (3). The middle parts of the left support column (1) and the right support column (2) are rotatably connected to a driven cross bar (4). The torsion shaft (3) is located directly above the driven cross bar (4). An upper swing arm (5) is fixedly inserted through the middle of the torsion shaft (3). A lower swing arm (6) is fixedly inserted through the middle of the driven cross bar (4). The upper swing arm (5) and the lower swing arm (6) have the same specifications. The upper swing arm ( 5) is movably engaged with an upper telescopic rod (7), and the front end of the lower swing arm (6) is movably engaged with a lower telescopic rod (8). The front end of the upper telescopic rod (7) is hinged to the top of the back of the lifting frame (10) through an upper pin shaft (9), and the front end of the lower telescopic rod (8) is hinged to the bottom of the back of the lifting frame (10) through a lower pin shaft (11). The axial center distance of the upper pin shaft (9) and the lower pin shaft (11) is equal to the axial center distance of the torsion axis (3) and the driven cross bar (4). The front end of the lifting frame (10) is provided with a camera fixing hole (12).

2. The tobacco leaf foreign body detection camera fixing bracket according to claim 1, characterized in that: A servo motor (13) is fixed to one side of the top end of the left support column (1), and the output shaft of the servo motor (13) is connected to the end of the torsion shaft (3) via a clutch coupling (21).

3. The tobacco leaf foreign body detection camera fixing bracket according to claim 1, characterized in that: The top surface of the lower swing arm (6) is rotatably connected to an electric telescopic rod (14) via a rotating shaft, a shaft frame (15) is fixedly provided at the middle portion of the rear side of the lifting frame (10), and the telescopic portion of the electric telescopic rod (14) is connected to the shaft frame (15) via a rotating shaft.

4. The tobacco leaf foreign body detection camera fixing bracket according to claim 1, characterized in that: The right end of the torsion shaft (3) is concentrically fixedly connected in series with a manual dial (16), and the outer circumferential side of the manual dial (16) is provided with positioning teeth (17) at equal intervals. A telescopic pin (18) is fixedly provided in the middle of the outer wall of the right support column (2), and the telescopic portion of the telescopic pin (18) is adapted to be embedded in the positioning teeth (17).

5. The tobacco leaf foreign body detection camera fixing bracket according to claim 1, characterized in that: A clamping slot (19) is fixed to the rear ends of the upper swing arm (5) and the lower swing arm (6), and a counterweight (20) is embedded in the clamping slot (19).

6. The tobacco leaf foreign body detection camera fixing bracket according to claim 2, characterized in that: The clutch coupling (21) is a multi-layer friction plate or an electromagnetic clutch disc.

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