A can conveying device with a phase correction mechanism

Abstract

The present invention relates to the technical field of can conveying, and specifically discloses a can conveying device with a phase correction mechanism, including a conveyor for conveying cans, on which are respectively provided equidistant conveying components and correction components, the correction components including a first servo motor, a first drive belt connected to the first servo motor, and a second servo motor connected to the second drive belt. The can conveying device with a phase correction mechanism provided by the present invention analyzes and calculates data of cans with angle deviations by setting an image acquisition component and a correction component and utilizing a deviation correction system, controls the rotation speed of the first servo motor by a controller, and helps the cans to be angle corrected by the speed difference between the first servo motor and the second servo motor, thereby achieving the purpose of automatic angle correction of the cans and correcting the cans conveyed to the rear for labeling and packaging.

Description

Technical Field

[0001] The present invention relates to the technical field of can conveying technology, and in particular to a can conveying device with a phase correction mechanism. Background Art

[0002] In the field of can packaging equipment, it is necessary to align a feature (pull ring) on the top surface of the can in the same direction before completing the next step of labeling. This can significantly improve the recognition and aesthetics of the can and increase the user group's recognition and acceptance of the can. Or, to facilitate opening, carrying, holding or management requirements, as well as for other functional considerations, the pull ring on the top surface of the can must be phase-aligned (i.e., the handles must be intelligently arranged in the same direction) at the front end of the intelligent production line.

[0003] In the prior art, cans are generally aligned manually, which not only increases unnecessary labor but is also inefficient. There may even be angle errors or a small number of cans may be missed and not aligned. This necessitates a mechanism for automatic phase alignment. Summary of the Invention

[0004] The object of the present invention is to provide a can conveying device with a phase correction mechanism to solve the above-mentioned shortcomings in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A can conveying device with a phase correction mechanism includes a conveyor for conveying cans, the conveyor being provided with an equidistant conveying component and a correction component, the image acquisition component being used to acquire images of the can bodies, the correction component comprising a first servo motor, a first drive belt drivingly connected to the first servo motor, and a second drive belt drivingly connected to the second servo motor, the first drive belt and the second drive belt being used to drive the cans to rotate to a correct angle;

[0007] It also includes a deviation correction system, which includes an image acquisition component, which is arranged on the conveyor; an image acquisition component, which is used to acquire the image of the can body; an angle calculation component, which is used to compare the acquired can body image with the standard image in the image library, calculate the offset angle of the can body image, and convert the offset angle into a phase angle; a speed calculation component, which is used to calculate the speed of the first servo motor and the second servo motor according to the phase angle; and a correction component, which is used to control the rotation of the first servo motor and the second servo motor according to the speed of the first servo motor and the second servo motor to correct the can.

[0008] Furthermore, the image acquisition component includes an image acquisition module and an image library, and the image acquisition module is a photographic device.

[0009] Furthermore, the image acquisition component is electrically connected to a controller, and the angle calculation component, the rotation speed calculation component and the correction component are all electrically connected to the controller.

[0010] Furthermore, the straightening component includes multiple first pulleys and second pulleys, the first drive belt is sleeved on the multiple first pulleys, the first servo motor is fixedly connected to one of the first pulleys, the second drive belt is sleeved on the multiple second pulleys, and the second servo motor is fixedly connected to one of the second pulleys.

[0011] Furthermore, the phase angle of the first servo motor , where θ is the offset angle of the can image, r is the radius of the can, and R is the radius of the first pulley.

[0012] Furthermore, the second servo motor V2 is a set value, and the correction time t0 is a set value.

[0013] .

[0014] Furthermore, the equidistant conveying component includes a third servo motor arranged on the conveyor, the third servo motor is equipped with a gear box for transmission, the output shaft of the gear box is fixedly connected to a spacing wheel, the spacing wheel is provided with multiple grooves, and the grooves are adapted to the outer wall of the can.

[0015] Furthermore, the image acquisition component also includes a support frame, a mobile frame is slidably connected to the support frame, the photographic equipment is slidably set on the mobile frame, a fill light is also set on the mobile frame, an adjustment screw is rotatably connected to the support frame, a threaded sleeve is set on the mobile frame, and the threaded sleeve is threadedly connected to the adjustment screw.

[0016] In the above technical solution, the can conveying device with a phase correction mechanism provided by the present invention has the following beneficial effects:

[0017] By setting up image acquisition components and alignment components and utilizing the deviation correction system, the data of cans with angle deviations are analyzed and calculated, and the speed of the first servo motor is controlled by the controller. The speed difference between the first servo motor and the second servo motor is used to help correct the angle of the cans, thereby achieving the purpose of automatic correction of the angle of the cans. The cans to be transported to the rear labeling station are aligned, making the labeling and coding position of the cans more accurate, and effectively avoiding coding on special positions such as pull rings, resulting in special commercial labels such as product logos not being able to be displayed beautifully, which does not meet the manufacturer's commercial requirements.

[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0019] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structure of an equidistant conveying component provided in an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of an image acquisition component provided in an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the structure of a straightening component provided in an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the structure of a first pulley provided in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the structure of a second pulley provided in an embodiment of the present invention;

[0027] Figure 7 A block diagram of the deviation correction system provided in an embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1. Conveyor; 2. Cans; 3. Equidistant conveying component; 31. Third servo motor; 32. Gearbox; 33. Pitch wheel; 34. Groove; 4. Image acquisition component; 41. Support frame; 42. Mobile frame; 43. Camera equipment; 44. Fill light; 45. Adjusting screw; 5. Alignment component; 51. First servo motor; 52. First pulley; 53. First drive belt; 54. Second servo motor; 55. Second drive belt; 56. Second pulley; 57. First fixed platform; 58. Second fixed platform; 6. Baffle. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0031] See also Figure 1-Figure 7 A can conveying device with a phase correction mechanism includes a conveyor 1 for conveying cans 2. The conveyor 1 is respectively provided with an equidistant conveying component 3 and a correction component 5. The correction component 5 includes a first servo motor 51, a first drive belt 53 connected to the first servo motor 51, and a second servo motor 54 connected to the second servo motor 54. The first drive belt 53 and the second drive belt 55 are responsible for driving the cans 2 to rotate to the correct angle.

[0032] The conveyor 1 includes a pair of baffles 6 and a conveying platform. The baffle 6 is installed on one end of the conveying platform and is responsible for helping the cans 2 to be arranged neatly.

[0033] It also includes a deviation correction system, which includes an image acquisition component 4, and the image acquisition component 4 is arranged on the conveyor 1;

[0034] An image acquisition component 4, which is used to acquire images of the tank body;

[0035] An angle calculation component, which is used to compare the collected tank image with the standard image in the image library, calculate the offset angle of the tank image, and convert the offset angle into a phase angle;

[0036] The angle calculation module contains an image comparison module that compares the collected image with the pictures in the image library, builds a model, and automatically calculates the deviation angle.

[0037] A speed calculation component for calculating the speeds of the first servo motor 51 and the second servo motor 54 according to the phase angle;

[0038] The correction component is used to control the rotation of the first servo motor 51 and the second servo motor 54 according to the speed of the first servo motor 51 and the second servo motor 54 to correct the can 2.

[0039] The equidistant conveying component 3 includes a third servo motor 31 arranged on the conveyor 1, and a gear box 32 is provided on the third servo motor 31 for transmission. A spacing wheel 33 is fixedly connected to the output shaft of the gear box 32, and a plurality of grooves 34 are formed on the spacing wheel 33, and the grooves 34 are adapted to the outer wall of the can 2.

[0040] Initially, multiple cans 2 are arranged in sequence on the conveyor platform. When passing the baffle 6, they are automatically aligned in a row and then touch the groove 34 of the spacing wheel 33. Each groove 34 close to the conveyor platform corresponds to a can 2. The spacing wheel 33 rotates slowly, pushing the can 2 on the groove 34 to the front each time it rotates, while preventing the can 2 behind from moving forward. The next can 2 can smoothly enters the inside of the next groove 34, thereby achieving the purpose of intermittently pushing the can 2. The distance between the front and rear cans 2 is constant, which is convenient for subsequent image acquisition and angle correction of each can 2.

[0041] The image acquisition component 4 includes an image acquisition module and an image library, and the image acquisition module is a camera device 43.

[0042] The image acquisition component 4 also includes a support frame 41, which is slidably connected to a mobile frame 42. The mobile frame 42 is provided with an electric slide rail, and the electric slide rail is provided with a photographic device 43, which can be a camera. The mobile frame 42 is also provided with a fill light 44 to ensure a clear image. The brightness of the fill light 44 is adjustable. An adjusting screw rod 45 is rotatably connected to the support frame 41, and a threaded sleeve is provided on the mobile frame 42. The threaded sleeve is threadedly connected to the adjusting screw rod 45. The support frame 41 is also provided with a pair of guide rods, which movably penetrate the mobile frame 42 to help the mobile frame 42 move up and down stably.

[0043] The image acquisition component 4 is electrically connected to the controller, and the angle calculation component, the rotational speed calculation component and the correction component are all electrically connected to the controller. The angle calculation component and the rotational speed calculation component are both internally provided with calculation modules.

[0044] The straightening component 5 includes multiple first pulleys 52 and second pulleys 56, the first drive belt 53 is sleeved on the multiple first pulleys 52, the first servo motor 51 is fixedly connected to one of the first pulleys 52, the second drive belt 55 is sleeved on the multiple second pulleys 56, and the second servo motor 54 is fixedly connected to one of the second pulleys 56.

[0045] The straightening component 5 also includes a first fixed platform 57 and a second fixed platform 58. Each first drive belt 53 drives at least three first pulleys 52, and each second drive belt 55 drives at least three second pulleys 56. A support rod is provided on the first fixed platform 57, and the first servo motor 51 and the second servo motor 54 are supported and suspended by the support rod.

[0046] The side of the first driving belt 53 facing the can 2 is flat.

[0047] In practice, three groups of straightening components 5 may be provided. When three cans 2 enter corresponding straightening components 5 , they are straightened at the same time, and then the cans 2 are driven and transported at the same speed.

[0048] The phase angle of the first servo motor 51 , where θ is the offset angle of the can image, r is the radius of the can 2, R is the radius of the first pulley 52, and the radius of the second pulley 56 is equal to the radius of the first pulley 52.

[0049] The formula for the tank rotation path is: The rotation path of the first pulley 52 is equal to the motion path of the first driving belt 55, and is also equal to the rotation path of the can 2.

[0050] The speed V2 of the second servo motor 54 is the set value, V1 is the corresponding speed after adjustment of the first servo motor 51, and the correction time t0 is the set value. The path and time speed formula is: , the two formulas are combined to obtain the speed formula of V1, .

[0051] Specifically, the speed of the second servo motor 54 is the same as that of the conveyor platform. At the beginning, the speed of the first servo motor 51 is the same as that of the second servo motor 54. When the signal transmitted by the deviation correction component is received, the speed of the first servo motor 51 is driven to increase to V1, and the cans are driven to rotate through the extrusion between the first drive belt 53 and the second drive belt 55, and the speed difference is used to drive the cans to rotate to the correct angle, ultimately achieving the purpose of correction.

[0052] In an embodiment further provided by the present invention, the conveyor may be further provided with a set of image acquisition components and correction components to perform image acquisition on the corrected cans as a test to avoid errors. When the correction is not in place, the correction components may be used to automatically correct the cans, thereby further improving the accuracy of the operation of the device and serving as an auxiliary correction for the device.

[0053] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A can conveying device with a phase correction mechanism, comprising a conveyor (1) for conveying cans (2), characterized in that: The conveyor (1) is provided with an equidistant conveying component (3) and a straightening component (5), respectively. The straightening component (5) comprises a first servo motor (51), a first driving belt (53) connected to the first servo motor (51), and a second driving belt (55) connected to the second servo motor (54). The first driving belt (53) and the second driving belt (55) are used to drive the cans (2) to rotate to a correct angle. The straightening component (5) further includes a plurality of first pulleys (52) and second pulleys (56); It also includes a deviation correction system, the deviation correction system including an image acquisition component (4), the image acquisition component (4) is arranged on the conveyor (1); An image acquisition component (4) for acquiring an image of the tank body; An angle calculation component, which is used to compare the collected tank image with the standard image in the image library, calculate the offset angle of the tank image, and convert the offset angle into a phase angle; A speed calculation component for calculating the speed of the first servo motor (51) and the second servo motor (54) according to the phase angle; a correction component for controlling the rotation of the first servo motor (51) and the second servo motor (54) according to the speed of the first servo motor (51) and the second servo motor (54) to correct the can (2); The phase angle of the first servo motor (51) , where θ is the offset angle of the can image, r is the radius of the can (2), and R is the radius of the first pulley (52); The rotation speed V2 of the second servo motor (54) is a set value, and the correction time t0 is a set value, then the adjusted rotation speed of the first servo motor (51) is V1. 。 2. The can conveying device with a phase correction mechanism according to claim 1, characterized in that: The image acquisition component (4) includes an image acquisition module and an image library, and the image acquisition module is a photographic device (43).

3. The can conveying device with a phase correction mechanism according to claim 2, characterized in that: The image acquisition component (4) is electrically connected to a controller, and the angle calculation component, the rotation speed calculation component and the correction component are all electrically connected to the controller.

4. The can conveying device with a phase correction mechanism according to claim 3, characterized in that: The first drive belt (53) is sleeved on a plurality of first pulleys (52), the first servo motor (51) is fixedly connected to one of the first pulleys (52), the second drive belt (55) is sleeved on a plurality of second pulleys (56), and the second servo motor (54) is fixedly connected to one of the second pulleys (56).

5. The can conveying device with a phase correction mechanism according to claim 1, characterized in that: The equidistant conveying component (3) comprises a third servo motor (31) arranged on the conveyor (1); a gear box (32) is provided on the third servo motor (31); a spacing wheel (33) is fixedly connected to the output shaft of the gear box (32); a plurality of grooves (34) are formed on the spacing wheel (33); the grooves (34) are adapted to the outer wall of the can (2).

6. The can conveying device with a phase correction mechanism according to claim 2, characterized in that: The image acquisition component (4) further comprises a support frame (41), a mobile frame (42) being slidably connected to the support frame (41), the photographic device (43) being slidably arranged on the mobile frame (42), a fill light (44) being further arranged on the mobile frame (42), an adjusting screw rod (45) being rotatably connected to the support frame (41), a threaded sleeve being arranged on the mobile frame (42), and the threaded sleeve being threadedly connected to the adjusting screw rod (45).

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