Large-scale turnover mechanism

Abstract

The utility model discloses a large -scale turnover mechanism, including base, two groups of rotary frame are rotatively connected with the distribution of left and right on the base upper wall. The utility model discloses, adopt the split differential gearbox linkage gear, rack drive mechanism, realize single motor drive eight groups of guide rod's synchronous lifting, eliminate the transmission impact and the risk of unbalanced load of traditional single motor mechanical type turnover machine, through the mounting deviation of universal joint compensation split differential gearbox and transmission shaft, the limiting of combination slide rail, guide wheel, can further improve the clamping accuracy, and the workpiece offset reduces and the risk of slipping reduces, can adapt steel roll, sheet material, special-shaped workpiece, the surface damage rate reduces, and the second motor through transmission rod synchronous two groups of synchronous belt drive rotary frame rotation, solve the workpiece slip problem caused by traditional single motor unbalanced load, and the push board can realize auxiliary support and automatic unloading when turning over, effectively improve security and turnover efficiency.

Description

Technical Field

[0001] This utility model relates to the field of industrial automation equipment technology, and in particular to a large-scale tilting mechanism. Background Technology

[0002] In existing technologies, common flipping machines used for flipping heavy workpieces such as steel coils, plates, and boxes are mainly divided into hydraulically driven and single-motor mechanical types. Hydraulically driven machines rely on hydraulic systems to achieve flipping, which has problems such as high energy consumption, complex maintenance, and easy biased loading during clamping. On the other hand, single-motor mechanical machines use gear or chain transmission, resulting in large flipping impacts, poor synchronization, and difficulty in adapting to irregularly shaped workpieces. In addition, existing flipping machines also have problems such as the clamping mechanism relying on a single power source, uneven clamping force distribution, easy damage to the workpiece surface, and poor linkage between flipping and clamping actions, leading to low efficiency. Therefore, it is necessary to develop a large-scale flipping mechanism to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a large-scale flipping mechanism.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a large-scale tilting mechanism, including a base, on which two sets of rotating frames are rotatably connected in a left-right distribution on the upper wall of the base. A transmission rod is rotatably connected to the upper wall of the base, located in front of the two sets of rotating frames, via two sets of bearing seats. Two sets of synchronous pulleys are fixedly connected to the outer wall of the transmission rod. A set of connecting rings is fixedly connected to the opposite side of each of the two sets of rotating frames. Each set of connecting rings meshes with a set of synchronous pulleys via a set of synchronous belts. A reducer is fixedly connected to the upper wall of the base, located to the left of the transmission rod, and a reducer is fixedly connected to the upper wall of the base, located behind the reducer. An air pump is fixedly connected to the wall. A first motor is fixedly connected to the top of the reducer. The extension shaft of the first motor is fixedly connected to the input shaft of the reducer. The output shaft of the reducer is fixedly connected to the left end of the transmission rod. An upper clamping seat and a lower clamping seat are fixedly connected in a vertical arrangement between the two sets of rotating frames on opposite sides. A clamping plate is provided on the lower wall of the upper clamping seat through eight sets of guide rods. A second motor for driving the guide rods to move up and down is provided on the lower wall of the upper clamping seat. A push plate for unloading is provided on the upper wall of the lower clamping seat. A cylinder for driving the push plate is provided on the lower wall of the lower clamping seat.

[0005] As a further description of the above technical solution:

[0006] The upper wall of the base is rotatably connected to four sets of support shafts via eight sets of bearing seats. The four sets of support shafts are arranged in two rows and two columns. Support rollers are fixedly connected to the outer walls of the four sets of support shafts. The rotating frame is rotatably connected between two sets of support rollers that are opposite each other. The outer circumference of the support rollers is provided with a limiting ring groove. The rotating frame is rotatably connected to the inner side wall of the limiting ring groove.

[0007] As a further description of the above technical solution:

[0008] The lower wall of the upper clamping seat has eight sets of transmission seats arranged in two rows and four columns. The eight sets of guide rods are respectively set on the inner side wall of one set of transmission seats. The guide rods pass through the inner cavity of the transmission seat. The clamping plate is fixedly connected to the end of the guide rod that extends to the bottom of the transmission seat. The inner wall of the transmission seat is provided with a transmission shaft that runs through the front and back. A gear is fixedly connected to the outer wall of the section of the transmission shaft inside the transmission seat. A rack plate is provided on the side of the guide rod facing the gear. The guide rod and the transmission shaft are driven by meshing with the gear and rack plate.

[0009] As a further description of the above technical solution:

[0010] Five sets of transfer cases are fixedly connected to the lower wall of the upper clamping seat and located between the two rows of transmission seats in a left-right distribution. Each set of transfer cases is provided with four sets of connecting shafts. The second motor is fixedly connected to the lower wall of the upper clamping seat and located on the front side of the middle set of transfer cases among the five sets of transfer cases. The front connecting shaft of the middle set of transfer cases and the extension shaft of the second motor, as well as the extension shafts on opposite sides of any two adjacent sets of transfer cases in the five sets of transfer cases, are all connected by couplings. The connecting shafts on the front and rear sides of the other sets of transfer cases, except for the middle set of transfer cases, are respectively connected to the corresponding transmission shafts through a set of universal joints.

[0011] As a further description of the above technical solution:

[0012] The lower clamping seat has a first fixing plate and a second fixing plate fixedly connected in sequence in a front-to-back arrangement on its lower wall. A push rod is slidably connected between the first fixing plate and the second fixing plate in a front-to-back through manner. The cylinder is fixedly connected between the first fixing plate and the second fixing plate and is located on the lower wall of the push rod. The cylinder extension shaft passes through the inner wall of the second fixing plate and is fixedly connected to the rear end of the push rod through a connecting plate. A connecting arm is fixedly connected to the upper wall of the push rod near its front end. The end of the connecting arm away from the push rod extends toward the upper wall of the lower clamping seat. The push plate is located at the end of the connecting arm that extends toward the upper wall of the lower clamping seat.

[0013] As a further description of the above technical solution:

[0014] Two sets of slide rails are provided on opposite sides of the two sets of rotating frames. The two sets of slide rails are distributed front to back and the length direction of the slide rails is parallel to the axis of the guide rod. Guide wheels are provided at the four corners of the clamping plate in the top view projection. The four sets of guide wheels are slidably connected to the inner sidewall of one set of slide rails.

[0015] As a further description of the above technical solution:

[0016] The base has threaded support feet on its lower wall and near its four corners.

[0017] This utility model has the following beneficial effects:

[0018] 1. Compared with existing technologies, this large-scale flipping mechanism adopts a transfer case linkage gear and rack transmission mechanism to achieve synchronous lifting and lowering of eight guide rods driven by a single motor, eliminating the transmission impact and off-center load risk of traditional single-motor mechanical flipping machines; by compensating for the installation deviation between the transfer case and the transmission shaft through universal joints, combined with the limiting of slide rails and guide wheels, the clamping accuracy can be further improved, the workpiece offset is reduced and the risk of slippage is lowered, and it can be adapted to steel coils, plates and irregularly shaped workpieces, with a reduced surface damage rate.

[0019] 2. Compared with existing technologies, this large-scale flipping mechanism uses a second motor to drive two sets of synchronous belts to rotate the rotating frame, solving the problem of workpiece slippage caused by the unbalanced load of a traditional single motor. The cylinder drives the push plate to achieve auxiliary support and automatic unloading during flipping, effectively improving safety and flipping efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the large-scale flipping mechanism proposed in this utility model;

[0021] Figure 2 The large-scale flipping mechanism proposed in this utility model Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 3 The large-scale flipping mechanism proposed in this utility model Figure 1 A magnified view of a section at point B in the middle;

[0023] Figure 4 This is a partial schematic diagram of the lower clamping seat, cylinder, push rod, and linkage arm connection structure of the large-scale flipping mechanism proposed in this utility model.

[0024] Figure 5 This is a schematic diagram of the connection structure of the upper clamping seat, guide rod, second motor, and transfer case of the large flipping mechanism proposed in this utility model.

[0025] Figure 6 This is a schematic diagram of the connection structure between the clamping plate and the rotating frame of the large flipping mechanism proposed in this utility model.

[0026] Legend:

[0027] 1. Base; 2. Support foot; 3. Air pump; 4. Reducer; 5. First motor; 6. Transmission rod; 7. Synchronous pulley; 8. Rotating frame; 801. Connecting ring; 9. Synchronous belt; 10. Support shaft; 11. Support roller; 12. Limiting ring groove; 13. Lower clamping seat; 14. Upper clamping seat; 15. Push rod; 16. Connecting arm; 17. Push plate; 18. First fixing plate; 19. Second fixing plate; 20. Cylinder; 21. Connecting plate; 22. Guide rod; 23. Clamping plate; 24. Second motor; 25. Transfer case; 26. Transmission seat; 27. Transmission shaft; 28. Universal joint; 29. ​​Guide wheel; 30. Slide rail. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1 to 6 The large flipping mechanism provided by this utility model includes a base 1, and support feet 2 are threadedly connected to the lower wall of the base 1 and near the four corners.

[0030] The threaded rod of the support leg 2 can be independently rotated to adjust its height. The level of the base 1 can be calibrated by a level instrument. The independent leveling mechanism at the four corners effectively eliminates the risk of equipment tipping over due to uneven ground. It is especially suitable for outdoor operation scenarios and ensures the rotational stability of the rotating frame 8 during the flipping process.

[0031] To provide low-friction support for the rotating frame 8 and constrain its axial offset, two sets of rotating frames 8 are rotatably connected to the upper wall of the base 1 in a left-right distribution. Four sets of support shafts 10 are rotatably connected to the upper wall of the base 1 through eight sets of bearing seats. The four sets of support shafts 10 are distributed in two rows and two columns. Support rollers 11 are fixedly connected to the outer walls of the four sets of support shafts 10. The rotating frame 8 is rotatably connected between two sets of support rollers 11 that are opposite to each other in front and behind. The outer circumference of the support rollers 11 is provided with a limiting ring groove 12. The rotating frame 8 is rotatably connected to the inner side wall of the limiting ring groove 12.

[0032] The rolling contact of the support roller 11 greatly reduces the rotational friction loss of the rotating frame 8, and the limiting ring groove 12 mechanically constrains the radial displacement of the rotating frame 8, avoiding rigid collision between the rotating frame 8 and the support shaft 10 due to the displacement of the workpiece center of gravity.

[0033] To address the off-center load issue when a single motor drives two rotating frames 8, a transmission rod 6 is rotatably connected to the upper wall of the base 1, located in front of the two sets of rotating frames 8, via two sets of bearing seats. Two sets of synchronous pulleys 7 are fixedly connected to the outer wall of the transmission rod 6. A set of connecting rings 801 is fixedly connected to the opposite side of the two sets of rotating frames 8. The two sets of connecting rings 801 are respectively meshed with a set of synchronous pulleys 7 via a set of synchronous belts 9. A reducer 4 is fixedly connected to the upper wall of the base 1, located to the left of the transmission rod 6. A first motor 5 is fixedly connected to the top of the reducer 4. The extension shaft of the first motor 5 is fixedly connected to the input shaft of the reducer 4, and the output shaft of the reducer 4 is fixedly connected to the left end of the transmission rod 6.

[0034] The first motor 5 drives the transmission rod 6 through the reducer 4, which in turn drives the two sets of rotating frames 8 to rotate at the same speed and in the same direction via the synchronous pulley 7 and the synchronous belt 9, eliminating the risk of workpiece slippage caused by traditional single-sided drive and ensuring the symmetry of the flipping action.

[0035] To address the issue of asynchronous power transmission caused by installation deviations, two sets of rotating frames 8 are arranged vertically and fixedly connected to each other on opposite sides, with an upper clamping seat 14 and a lower clamping seat 13. The lower wall of the upper clamping seat 14 is equipped with a clamping plate 23 via eight sets of guide rods 22. A second motor 24 for driving the guide rods 22 to move up and down is installed on the lower wall of the upper clamping seat 14. Eight sets of transmission seats 26 are arranged in two rows and four columns on the lower wall of the upper clamping seat 14. The eight sets of guide rods 22 are respectively installed on the inner side wall of one set of transmission seats 26. The guide rods 22 penetrate the inner cavity of the transmission seat 26. The clamping plate 23 is rotatably connected to the end of the guide rod 22 that extends to the bottom of the transmission seat 26. A transmission shaft 27 is arranged through the inner wall of the transmission seat 26. A gear is fixedly connected to the outer wall of a section of the transmission shaft 27 inside the transmission seat 26. A rack plate is provided on the side of the guide rod 22 facing the gear. The guide rod 22 and the transmission shaft 27 are driven by meshing with the gear and rack plate.

[0036] The second motor 24 links each transmission shaft 27 through the transfer box 25. The gear and rack transmission pairs convert the rotational motion into the vertical linear motion of the guide rod 22. The eight sets of guide rods 22 move synchronously to drive the clamping plate 23 to complete the clamping of the workpiece, avoiding surface damage caused by local overpressure.

[0037] To address the issue of asynchronous power transmission caused by installation deviations of multiple drive shafts 27, five sets of transfer cases 25 are fixedly connected to the lower wall of the upper clamping seat 14, located between two rows of drive seats 26, arranged in a left-right distribution. Each set of transfer cases 25 is equipped with four sets of connecting shafts. The second motor 24 is fixedly connected to the lower wall of the upper clamping seat 14, located at the front side of the middle set of transfer cases 25. The front connecting shaft of the middle set of transfer cases 25 and the extension shaft of the second motor 24, as well as the extension shafts on opposite sides of any two adjacent sets of transfer cases 25, are connected by couplings. The connecting shafts on the front and rear sides of the other transfer cases 25, except for the middle set of transfer cases 25, are connected to the corresponding drive shafts 27 by a set of universal joints 28.

[0038] The multi-stage linkage layout of the transfer case 25 evenly distributes the power of the second motor 24 to eight sets of drive shafts 27. The universal joint 28 compensates for the axial installation deviation between the drive shaft 27 and the connecting shaft of the transfer case 25, ensuring the synchronization accuracy of each gear and rack transmission pair.

[0039] To achieve support during flipping and safe unloading, the upper wall of the lower clamping seat 13 is provided with a push plate 17 for unloading, and the lower wall of the lower clamping seat 13 is provided with a cylinder 20 for driving the push plate 17. An air pump 3 is fixedly connected to the upper wall of the base 1 and the rear wall of the reducer 4. The lower wall of the lower clamping seat 13 is fixedly connected with a first fixing plate 18 and a second fixing plate 19 in a front-to-back arrangement. A push rod 15 is slidably connected between the first fixing plate 18 and the second fixing plate 19 in a front-to-back through manner. The cylinder 20 is fixedly connected between the first fixing plate 18 and the second fixing plate 19 and is located on the lower wall of the push rod 15. The extension shaft of the cylinder 20 passes through the inner wall of the second fixing plate 19 and is fixedly connected to the rear end of the push rod 15 through a connecting plate 21. A connecting arm 16 is fixedly connected to the upper wall of the push rod 15 near the front end. The end of the connecting arm 16 away from the push rod 15 extends toward the upper wall of the lower clamping seat 13. The push plate 17 is located at the end of the connecting arm 16 extending toward the upper wall of the lower clamping seat 13.

[0040] The cylinder 20 drives the push plate 17 to move horizontally through the push rod 15 and the connecting arm 16. During the flipping process, it can support the workpiece. At the same time, after the flipping is completed, the workpiece is pushed out smoothly. The horizontal movement path of the push plate 17 is linked with the lifting action of the clamping plate 23 to avoid interference between the workpiece and the clamping mechanism during unloading.

[0041] In order to eliminate the lateral displacement of the clamping plate 23 during the lifting process, two sets of slide rails 30 are provided on opposite sides of the two sets of rotating frames 8. The two sets of slide rails 30 are distributed in front and behind and the length direction of the slide rails 30 is parallel to the axis of the guide rod 22. Guide wheels 29 are provided at the four corners of the clamping plate 23 in the top view projection. The four sets of guide wheels 29 are slidably connected to the inner side wall of one set of slide rails 30 respectively.

[0042] The guide wheel 29 slides along the slide rail 30 and cooperates with the guide rod 22 to form a double guiding constraint, preventing the clamping plate 23 from tilting due to the offset of the workpiece's center of gravity, ensuring that the clamping force acts perpendicularly on the workpiece surface, and further reducing the risk of slippage.

[0043] Working principle: The threaded rod of the support foot 2 can be independently rotated to adjust its height. The level of the base 1 is calibrated by a level instrument. The independent leveling mechanism at the four corners effectively eliminates the risk of equipment tipping over due to uneven ground, making it especially suitable for outdoor operation scenarios and ensuring the rotational stability of the rotating frame 8 during the flipping process. The rolling contact of the support rollers 11 greatly reduces the rotational friction loss of the rotating frame 8. The limiting ring groove 12 mechanically constrains the radial displacement of the rotating frame 8, avoiding rigid collision between the rotating frame 8 and the support shaft 10 due to the offset of the workpiece center of gravity. The first motor 5 drives the transmission rod 6 through the reducer 4, which drives the two sets of rotating frames 8 to rotate at the same speed and in the same direction through the synchronous pulley 7 and the synchronous belt 9, eliminating the risk of workpiece slippage caused by traditional single-sided drive and ensuring the symmetry of the flipping action. The second motor 24 links each transmission shaft 27 through the transfer case 25. The gear and rack transmission pairs convert the rotational motion into the vertical motion of the guide rod 22. The linear motion of the eight guide rods 22 synchronously drives the clamping plate 23 to clamp the workpiece, avoiding surface damage caused by local overpressure. The multi-stage linkage layout of the transfer case 25 evenly distributes the power of the second motor 24 to the eight transmission shafts 27. The universal joint 28 compensates for the axial installation deviation between the transmission shaft 27 and the connecting shaft of the transfer case 25, ensuring the synchronization accuracy of each gear and rack transmission pair. The cylinder 20 drives the push plate 17 to translate through the push rod 15 and the connecting arm 16. During the flipping process, it can support the workpiece and push the workpiece out smoothly after the flipping is completed. The translation path of the push plate 17 is linked with the lifting action of the clamping plate 23 to avoid interference between the workpiece and the clamping mechanism during unloading. The guide wheel 29 slides along the slide rail 30 and cooperates with the guide rod 22 to form a double guiding constraint, preventing the clamping plate 23 from tilting due to the offset of the workpiece's center of gravity, ensuring that the clamping force acts perpendicularly on the workpiece surface, and further reducing the risk of slippage.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A large-scale tilting mechanism, characterized in that: The system includes a base (1), on which two sets of rotating frames (8) are rotatably connected in a left-right arrangement on the upper wall. A transmission rod (6) is rotatably connected to the upper wall of the base (1) in front of the two sets of rotating frames (8) via two sets of bearing seats. Two sets of synchronous pulleys (7) are fixedly connected to the outer wall of the transmission rod (6). A set of connecting rings (801) is fixedly connected to the opposite side of the two sets of rotating frames (8). The two sets of connecting rings (801) are respectively engaged with a set of synchronous pulleys (7) via a set of synchronous belts (9). A reducer (4) is fixedly connected to the upper wall of the base (1) on the left side of the transmission rod (6). An air pump (3) is fixedly connected to the upper wall of the base (1) on the rear wall of the reducer (4). The top of the reducer (4) is fixedly... A first motor (5) is connected, and the extension shaft of the first motor (5) is fixedly connected to the input shaft of the reducer (4). The output shaft of the reducer (4) is fixedly connected to the left end of the transmission rod (6). The two sets of rotating frames (8) are arranged vertically and fixedly connected to an upper clamping seat (14) and a lower clamping seat (13) on opposite sides. The lower wall of the upper clamping seat (14) is provided with a clamping plate (23) through eight sets of guide rods (22). The lower wall of the upper clamping seat (14) is provided with a second motor (24) for driving the guide rods (22) to move up and down. The upper wall of the lower clamping seat (13) is provided with a push plate (17) for unloading. The lower wall of the lower clamping seat (13) is provided with a cylinder (20) for driving the push plate (17) to move.

2. The large-scale tilting mechanism according to claim 1, characterized in that: The upper wall of the base (1) is rotatably connected to four sets of support shafts (10) through eight sets of bearing seats. The four sets of support shafts (10) are arranged in two rows and two columns. The outer walls of the four sets of support shafts (10) are fixedly connected to support rollers (11). The rotating frame (8) is rotatably connected between two sets of support rollers (11) that are opposite each other. The outer circumference of the support rollers (11) is provided with a limiting ring groove (12). The rotating frame (8) is rotatably connected to the inner side wall of the limiting ring groove (12).

3. The large-scale tilting mechanism according to claim 2, characterized in that: The lower wall of the upper clamping seat (14) has eight sets of transmission seats (26) arranged in two rows and four columns. The eight sets of guide rods (22) are respectively set on the inner side wall of one set of transmission seats (26). The guide rods (22) penetrate the inner cavity of the transmission seat (26). The clamping plate (23) is rotatably connected to the end of the guide rod (22) that extends to the bottom of the transmission seat (26). The inner wall of the transmission seat (26) is provided with a transmission shaft (27) that runs through the front and back. A gear is fixedly connected to a section of the outer wall of the transmission shaft (27) inside the transmission seat (26). A rack plate is provided on the side of the guide rod (22) facing the gear. The guide rod (22) and the transmission shaft (27) are driven by meshing through the gear and rack plate.

4. The large-scale tilting mechanism according to claim 3, characterized in that: Five sets of transfer boxes (25) are fixedly connected to the lower wall of the upper clamping seat (14) and located between the two rows of transmission seats (26) in a left-right distribution. Each set of transfer boxes (25) is provided with four sets of connecting shafts. The second motor (24) is fixedly connected to the lower wall of the upper clamping seat (14) and located on the front side of the middle set of transfer boxes (25) among the five sets of transfer boxes (25). The front connecting shaft of the middle set of transfer boxes (25) among the five sets of transfer boxes (25) is connected to the extension shaft of the second motor (24), and the extension shafts on the opposite side of any two adjacent sets of transfer boxes (25) among the five sets of transfer boxes (25) are connected by couplings. The connecting shafts on the front and rear sides of the other sets of transfer boxes (25) (except for the middle set of transfer boxes (25)) are connected to the corresponding transmission shafts (27) through a set of universal joints (28).

5. The large-scale tilting mechanism according to claim 4, characterized in that: The lower clamping seat (13) has a first fixing plate (18) and a second fixing plate (19) fixedly connected in a front-to-back arrangement on its lower wall. A push rod (15) is slidably connected between the first fixing plate (18) and the second fixing plate (19) in a front-to-back through manner. The cylinder (20) is fixedly connected between the first fixing plate (18) and the second fixing plate (19) and located on the lower wall of the push rod (15). The cylinder (20) extends through the inner wall of the second fixing plate (19) and is fixedly connected to the rear end of the push rod (15) through a connecting plate (21). A connecting arm (16) is fixedly connected to the upper wall of the push rod (15) near its front end. The end of the connecting arm (16) away from the push rod (15) extends toward the upper wall of the lower clamping seat (13). The push plate (17) is located at the end of the connecting arm (16) extending toward the upper wall of the lower clamping seat (13).

6. The large-scale tilting mechanism according to claim 5, characterized in that: Two sets of slide rails (30) are provided on opposite sides of the two sets of rotating frames (8). The two sets of slide rails (30) are distributed in front and behind, and the length direction of the slide rails (30) is parallel to the axial direction of the guide rod (22). Guide wheels (29) are provided at the four corners of the top projection of the clamping plate (23). The four sets of guide wheels (29) are slidably connected to the inner side wall of one set of slide rails (30).

7. The large-scale tilting mechanism according to claim 6, characterized in that: The base (1) has support feet (2) threadedly connected to its lower wall and near its four corners.

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