Turnover device with anti-toppling function

Abstract

The invention discloses a turnover device with an anti-toppling function, and relates to the technical field of turnover devices.The turnover device comprises a workbench, a feeding mechanism, a supporting frame, a turnover mechanism, a first motor and a discharging mechanism, the turnover mechanism can automatically adjust the clamping force along with the turnover angle, automatic loosening is achieved when a printed matter is completely in place, and the turnover mechanism can automatically adjust the clamping force along with the turnover angle; the speed is rapidly increased in the first half section of the overturning process, the rotating speed is automatically reduced in the second half section of the overturning process, stable speed reduction is achieved, the overturning time is shortened, the printed matter can be prevented from overturning or displacing due to too fast movement in the overturning process, it is guaranteed that overturning is accurate and stable each time, and the production efficiency is improved. Meanwhile, when the turnover speed is too high due to power failure or other emergencies, multiple braking is automatically conducted on the device, the situation that due to the inertia effect, the printed matter or the device is overturned or collided or damaged by other accidents is avoided, the whole turnover process is stable and accurate, and therefore the reliability of equipment operation is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of overturning devices, in particular to a overturning device with an anti-dumping function. Background Art

[0002] In the actual production process of the current printing industry, it is usually necessary to print on both sides of the printed matter. For the double-sided printing of large-format printed matter, manual participation is generally required. After the printing of the front side of the printed matter is completed, manual handling is required. Multiple operators hold the four corners of the printed matter respectively and perform aerial flipping operations based on experience to flip the large-format printed matter 180 degrees for back printing. This flipping method has defects in actual production: manual flipping is inefficient, labor-intensive, and it is easy to cause harm to the workers themselves when flipping large-format printed matter; creases or ink stains are easily generated during the flipping process of large-format printed matter, which affects the quality of printing, increases the scrap rate, and affects production efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a tipping device with an anti-dumping function to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: the flipping device includes a workbench, on which a feeding mechanism, a support frame and a discharging mechanism are sequentially installed along the discharging direction, a first motor is installed on one side of the support frame, a flipping mechanism is rotatably connected between two support frames, the output shaft of the first motor is installed on the flipping mechanism, and the feeding mechanism, the first motor and the discharging mechanism are connected to a control system. When in use, the feeding mechanism is controlled to start, and the product is transported from the feeding mechanism to the flipping mechanism, the control system controls the first motor to start, the first motor drives the flipping mechanism to start, the flipping mechanism flips the product 180 degrees, and then transports the product to the discharging mechanism, and the discharging mechanism is controlled to transport the product to the next process.

[0005] The flipping mechanism includes a rotating device, which is installed between two supporting frames. A transmission device is installed on one side of the rotating device, and the output shaft of the first motor is installed on the transmission device. A supporting wheel is installed on the other side of the rotating device. A locking device is installed on the inner side of the supporting frame, and a guiding device is installed on the outer side of the supporting frame.

[0006] The transmission device includes a first base and a second base. The first base and the second base are installed on a workbench. One side of the first base is rotatably connected to a rocker arm, one side of the rocker arm is rotatably connected to a first rotating shaft, one side of the first rotating shaft is installed with a small gear, the other end of the first rotating shaft is installed with a connecting plate, one end of the connecting plate is installed with a second rotating shaft, the second rotating shaft rotates on the second base, one side of the small gear is installed with a large gear, one side of the large gear is installed on the output shaft of the first motor, and one side of the second rotating shaft is installed with a first gear. The control system controls the first motor to start, the output shaft of the first motor drives the large gear to rotate, the large gear drives the small gear to rotate around the large gear, the small gear drives the first rotating shaft to rotate around the large gear, the first rotating shaft drives the swing rod to move, the swing rod drives the connecting plate to move, the connecting plate drives the second rotating shaft to rotate, and the second rotating shaft drives the first gear to rotate. It accelerates rapidly in the first half of the flipping process, so that the printed product enters the flipping state in the shortest time, and automatically reduces the rotation speed in the second half when the flipping is about to be completed to achieve smooth deceleration. This high-speed front and low-speed back control not only greatly shortens the overall flipping time and improves work efficiency, but also can reduce the inertia and centrifugal force generated by high-speed rotation, and prevent the printed product from overturning or displacement due to excessively fast movement during the flipping process.

[0007] The rotating device includes a fixed plate, one side of the fixed plate is rotatably connected to a third rotating shaft, the third rotating shaft rotates on a support frame, a second gear and a disc are installed on the third rotating shaft, the second gear is meshed with the first gear, the disc is against the supporting wheel, the interior of the fixed plate is rotatably connected to a rotating disk, a transverse plate and a roller are installed between the two rotating disks, a second motor is installed at one end of the roller, a rotating structure is installed at one side of the rotating disk, a fixed structure is slidably connected to the transverse plate, and the second motor is connected to a control system. When the product is on the roller, the first gear drives the second gear to rotate, the second gear drives the third rotating shaft to rotate, and the third rotating shaft drives the rotating disk to rotate.

[0008] The rotating structure includes a rotating rod, a cylinder is rotatably connected to one side of the rotating disk, a pawl is installed on the outer surface of the cylinder, the rotating rod is sleeved on the cylinder, the rotating rod rotates on one side of the rotating disk, a ratchet is installed on the inner side of the rotating rod, a first connecting rod is rotatably connected to one side of the rotating disk, a second connecting rod is rotatably connected to one side of the first connecting rod, the second connecting rod slides on the cross plate, a connecting column is installed on one side of the second connecting rod, the connecting column is installed on the fixed structure, a fixed block and a limit block are installed on one side of the rotating disk, and a first spring is installed between the rotating rod and the fixed block.

[0009] The fixed structure includes a push-pull column, which slides on the horizontal plate. The connecting column is installed on the push-pull column. One end of the push-pull column is rotatably connected to a cam. A support block is installed on one side of the horizontal plate. A fourth rotating shaft is installed on one side of the support block. The cam rotates on the fourth rotating shaft. When the rotating disk rotates, the pawl rests on the ratchet wheel. At this time, the rotating rod does not move, and the first connecting rod rotates around the rotating rod. The first connecting rod drives the second connecting rod to slide on the horizontal plate, and the second connecting rod slides in the direction away from the center of the rotating disk, and the second connecting rod drives the connecting column to move, and the connecting column drives the push-pull column to move, and the push-pull column drives the cam to rotate around the fourth rotating shaft. One end of the cam clamps the product. When the printed product begins to flip, the fixed structure will gradually increase the clamping force to ensure that the printed product remains stable during the flipping process and is not prone to sliding or dislocation. When the flip is in place, the first motor stops, and the first spring drives the rotating rod to rotate in the opposite direction. At this time, the ratchet slides on the pawl and rotates until it stops at the limit block. The cam releases the product, and the control system controls the second motor to start, and the second motor drives the roller to rotate, and the roller drives the product to the discharging mechanism, and the discharging mechanism transports the product to the next process.

[0010] The locking device includes a centrifugal braking structure, which is installed on the inner side of the support frame, a bimetallic strip is installed on one side of the centrifugal braking structure, a connecting block is installed on one side of the bimetallic strip, a brake block is installed on one end of the connecting block, a long rod is installed on the connecting block, one end of the long rod is rotatably connected to a short rod, one end of the short rod is rotatably connected to a slider, the slider slides on a fixed plate, and one end of the slider is connected to a brake tooth.

[0011] The centrifugal braking structure includes an outer shell, which is installed on the inner side of the support frame, the inner shell is rotatably connected to the inner shell, a rotating block is installed inside the inner shell, a through groove is provided on the inner shell, a sliding groove is provided on the rotating block, a slide plate is slidably connected in the sliding groove, a guide rod is installed at one end of the slide plate, the guide rod slides in the through groove, a friction block is installed at one end of the guide rod, a second spring is sleeved on the outer surface of the guide rod, one end of the second spring is installed on the slide plate, and the other end of the second spring is installed on the inner wall of the inner shell, and the inner shell and the rotating block are installed on a third rotating shaft. When a power outage or other emergency occurs that causes the flipping speed to be too fast, the third rotating shaft drives the inner shell and the rotating block to rotate, and the slide slides in the sliding groove under the action of centrifugal force, and the slide slides in the direction away from the third rotating shaft, and the slide drives the guide rod to slide in the through groove, and the guide rod drives the friction block to slide until the friction block is against the inner wall of the outer shell, and when the friction block rotates around the third rotating shaft, it rubs quickly against the inner wall of the outer shell, generating friction braking force and heat, and the heat is transferred to the bimetallic strip, and the bimetallic strip bulges after sensing the heat, and the bimetallic strip drives the connecting block to move away from the outer shell, and the connecting block drives the brake block and the long rod to move, and the brake block is against the second gear and the disc, generating a secondary braking force, and the long rod drives the short rod to rotate, and the short rod drives the slider to slide on the fixed plate, and the slider slides in the direction close to the second gear until the brake tooth is stuck in the second gear, generating a tertiary braking force, to prevent the printed matter or the device itself from overturning, colliding or other accidental damage due to inertia.

[0012] The guiding device includes a first rocker arm, which is mounted on a third rotating shaft, a sliding column is mounted on one end of the first rocker arm, one end of the first rocker arm is rotatably connected to an intermediate rod, one end of the intermediate rod is rotatably connected to a second rocker arm, one end of the second rocker arm is mounted on the outer side of a support frame, a semicircular groove is provided on the outer side of the support frame, the sliding column slides in the semicircular groove, a groove and a rotating groove are provided on one side of the semicircular groove, a fourth rotating shaft is mounted in the semicircular groove, a lever is rotatably connected to the fourth rotating shaft, a third spring is mounted on one end of the lever, the other end of the third spring is mounted on the groove wall of the rotating groove, an electromagnet is mounted in the groove wall of the groove, and the electromagnet is connected to a control system. The third rotating shaft drives the first rocker to rotate, and the sliding column slides in the semicircular groove. The first rocker drives the middle rod to rotate, and the middle rod drives the second rocker to rotate. When flipped to 90 degrees, the sliding column pushes the lever to rotate around the fourth rotating shaft. When the sliding column completely passes the lever, the third spring pushes the lever to rotate around the fourth rotating shaft to the initial position. When flipped to 180 degrees, the first rocker is at the dead point position to ensure the accuracy of the flip. When the flipping device is returned to the center, the control system controls the electromagnet to energize, the electromagnet absorbs one side of the lever, and the sliding column slides to the initial position. When a power outage or other emergency occurs, the sliding column will fall back to the initial position in the first half of the flip, and the sliding column will rest on the lever in the second half of the flip. The groove wall of the rotating groove will block the rotation of the lever, reduce the motion range of the sliding column, and reduce the damage to the product or device due to inertia.

[0013] One end of the cam is installed with a silicone material, the outer surface of the friction block is made of a material with a high friction coefficient, and one side of the lever is installed with a magnetic material.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The transmission device of the present invention adopts an intelligent speed regulation technology, so that the flipping process can be quickly accelerated in the first half of the start-up, so that the printed product enters the flipping state in the shortest time; and in the second half when the flipping is about to be completed, the rotation speed is automatically reduced to achieve smooth deceleration. This high-speed front and low-speed rear speed regulation not only greatly shortens the overall flipping time and improves work efficiency, but also can reduce the inertia and centrifugal force generated by high-speed rotation, prevent the printed product from overturning or displacement due to excessively fast movement during the flipping process, and ensure that each flipping is accurate and stable, thereby improving the overall quality and reliability of the printed product; 2. The present invention adopts multiple braking technology. When the overturning speed is too fast due to power failure or other emergencies, the multiple braking system is automatically started. First, the friction resistance is generated by the centrifugal braking structure. Secondly, the thermal deformation of the bimetallic sheet pushes the brake block to contact the gear. Finally, the brake teeth on the slider lock the gear. The triple braking works together to prevent the printed matter or the device itself from overturning, colliding or other accidental damage due to inertia. At the same time, the pure mechanical structure braking method can operate normally in any state without external power support, thereby improving the response speed and reliability of the braking system. 3. The fixed structure of the present invention can automatically adjust the clamping force according to the flipping angle. When the printed product starts to flip, the fixed structure will gradually increase the clamping force to ensure that the printed product always remains stable during the flipping process and is not prone to sliding or dislocation. It will automatically release when the printed product is fully in place. This fully automatic control mechanism not only eliminates the errors and inconveniences of manual operation, but also greatly improves production efficiency and safety, making the entire flipping process smooth and accurate, thereby ensuring the reliability of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional diagram of the turning device of the present invention; Figure 2 A three-dimensional diagram of the turning mechanism of the present invention; Figure 3 is a three-dimensional diagram of the transmission device of the present invention; Figure 4 is a perspective view of the rotating device of the present invention; Figure 5 is a three-dimensional diagram of the rotating structure of the present invention; Figure 6 A three-dimensional diagram of the fixing structure of the present invention; Figure 7 is a three-dimensional diagram of the locking structure of the present invention; Figure 8 An exploded view of the centrifugal brake structure of the present invention; Fig. 9 It is a three-dimensional diagram of the guide device of the present invention.

[0016] In the figure: 1, workbench; 2, feeding mechanism; 3, support frame; 4, turning mechanism; 41, transmission device; 411, first base; 412, second base; 413, swing rod; 414, large gear; 415, small gear; 416, connecting plate; 417, second rotating shaft; 418, first gear; 42, rotating device; 421, fixed plate; 422, third rotating shaft; 423, second gear; 424, disc; 425, rotating disc; 426, horizontal plate; 427, roller; 428, rotating structure; 4281, rotating rod; 4282, first connecting rod; 4283, second connecting rod; 4284, connecting column; 4285, fixed block; 4286, first spring; 4287, limit Block; 429, fixed structure; 4291, push-pull column; 4292, support block; 4293, cam; 43, support wheel; 44, locking device; 441, centrifugal brake structure; 4411, outer shell; 4412, inner shell; 4413, rotating block; 4414, slide plate; 4415, second spring; 4416, friction block; 442, bimetallic strip; 443, brake block; 444, long rod; 445, short rod; 446, slider; 45, guide device; 451, first rocker; 452, middle rod; 453, second rocker; 454, semicircular groove; 455, lever; 456, rotating groove; 457, third spring; 458, groove; 5, first motor; 6, discharge mechanism. DETAILED DESCRIPTION

[0017] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0018] Example: Figure 1-Figure 9 As shown, the present invention provides a technical solution, the flipping device includes a workbench 1, on which a feeding mechanism 2, a support frame 3 and a discharging mechanism 6 are sequentially installed along the discharging direction, a first motor 5 is installed on one side of the support frame 3, a flipping mechanism 4 is rotatably connected between the two support frames 3, the output shaft of the first motor 5 is installed on the flipping mechanism 4, and the feeding mechanism 2, the first motor 5 and the discharging mechanism 6 are connected to the control system. When in use, the feeding mechanism 2 is controlled to start, and the product is transported from the feeding mechanism 2 to the flipping mechanism 4, the control system controls the first motor 5 to start, the first motor 5 drives the flipping mechanism 4 to start, the flipping mechanism 4 flips the product 180 degrees, and then transports the product to the discharging mechanism 6, and the discharging mechanism 6 is controlled to transport the product to the next process.

[0019] The flipping mechanism 4 includes a rotating device 42, which is installed between two support frames 3. A transmission device 41 is installed on one side of the rotating device 42, and the output shaft of the first motor 5 is installed on the transmission device 41. A support wheel 43 is installed on the other side of the rotating device 42. A locking device 44 is installed on the inner side of the support frame 3, and a guide device 45 is installed on the outer side of the support frame 3.

[0020] The transmission device 41 includes a first base 411 and a second base 412. The first base 411 and the second base 412 are installed on the workbench 1. One side of the first base 411 is rotatably connected to a rocker arm 413, one side of the rocker arm 413 is rotatably connected to a first rotating shaft, a small gear 415 is installed on one side of the first rotating shaft, a connecting plate 416 is installed on the other end of the first rotating shaft, a second rotating shaft 417 is installed on one end of the connecting plate 416, and the second rotating shaft 417 rotates on the second base 412, a large gear 414 is installed on one side of the small gear 415, one side of the large gear 414 is installed on the output shaft of the first motor 5, and a first gear 418 is installed on one side of the second rotating shaft 417.

[0021] The control system controls the first motor 5 to start, the output shaft of the first motor 5 drives the large gear 414 to rotate, the large gear 414 drives the small gear 415 to rotate around the large gear 414, the small gear 415 drives the first rotating shaft to rotate around the large gear 414, the first rotating shaft drives the swing rod 413 to move, the swing rod 413 drives the connecting plate 416 to move, the connecting plate 416 drives the second rotating shaft 417 to rotate, and the second rotating shaft 417 drives the first gear 418 to rotate, and accelerates rapidly in the first half of the start of the flipping process, so that the printed product enters the flipping state in the shortest time, and automatically reduces the rotation speed in the second half when the flipping is about to be completed to achieve smooth deceleration. This high-speed front and low-speed back control not only greatly shortens the overall flipping time and improves work efficiency, but also can reduce the inertia and centrifugal force generated by high-speed rotation, and prevent the printed product from overturning or displacement due to excessively fast movement during the flipping process.

[0022] The rotating device 42 includes a fixed plate 421, one side of the fixed plate 421 is rotatably connected to a third rotating shaft 422, the third rotating shaft 422 rotates on the support frame 3, a second gear 423 and a disk 424 are installed on the third rotating shaft 422, the second gear 423 is meshed with the first gear 418, the disk 424 is against the support wheel 43, the interior of the fixed plate 421 is rotatably connected to a rotating disk 425, a horizontal plate 426 and a roller 427 are installed between the two rotating disks 425, a second motor is installed at one end of the roller 427, a rotating structure 428 is installed on one side of the rotating disk 425, a fixed structure 429 is slidably connected to the horizontal plate 426, and the second motor is connected to the control system. When the product is located on the roller 427, the first gear 418 drives the second gear 423 to rotate, the second gear 423 drives the third rotating shaft 422 to rotate, and the third rotating shaft 422 drives the rotating disk 425 to rotate.

[0023] The rotating structure 428 includes a rotating rod 4281, a cylinder is rotatably connected to one side of the rotating disk 425, a pawl is installed on the outer surface of the cylinder, the rotating rod 4281 is sleeved on the cylinder, the rotating rod 4281 rotates on one side of the rotating disk 425, a ratchet is installed on the inner side of the rotating rod 4281, a first connecting rod 4282 is rotatably connected to one side of the rotating disk 425, a second connecting rod 4283 is rotatably connected to one side of the first connecting rod 4282, the second connecting rod 4283 slides on the cross plate 426, a connecting column 4284 is installed on one side of the second connecting rod 4283, and the connecting column 4284 is installed on the fixed structure 429, a fixed block 4285 and a limit block 4287 are installed on one side of the rotating disk 425, and a first spring 4286 is installed between the rotating rod 4281 and the fixed block 4285.

[0024] The fixed structure 429 includes a push-pull column 4291, which slides on the horizontal plate 426. The connecting column 4284 is installed on the push-pull column 4291. One end of the push-pull column 4291 is rotatably connected to a cam 4293. A support block 4292 is installed on one side of the horizontal plate 426. A fourth rotating shaft is installed on one side of the support block 4292. The cam 4293 rotates on the fourth rotating shaft, and one end of the cam 4293 is installed with a silicone material.

[0025] When the rotating disk 425 rotates, the pawl is against the ratchet wheel. At this time, the rotating rod 4281 does not move, and the first connecting rod 4282 rotates around the rotating rod 4281. The first connecting rod 4282 drives the second connecting rod 4283 to slide on the horizontal plate 426. The second connecting rod 4283 slides in the direction away from the center of the rotating disk 425. The second connecting rod 4283 drives the connecting column 4284 to move. The connecting column 4284 drives the push-pull column 4291 to move. The push-pull column 4291 drives the cam 4293 to rotate around the fourth rotating shaft. One end of the cam 4293 clamps the product. When the printed matter is opened When the printing press starts to flip, the fixed structure 429 will gradually increase the clamping force to ensure that the printed product remains stable during the flipping process and is not prone to sliding or dislocation. When the flipping is in place, the first motor 5 stops, and the first spring 4286 drives the rotating rod 4281 to rotate in the opposite direction. At this time, the ratchet slides on the pawl and rotates until it stops at the limit block 4287. The cam 4293 releases the product, and the control system controls the second motor to start. The second motor drives the roller 427 to rotate, and the roller 427 drives the product to be transported to the discharge mechanism 6, and the discharge mechanism 6 transports the product to the next process.

[0026] The locking device 44 includes a centrifugal brake structure 441, which is installed on the inner side of the support frame 3. A bimetallic strip 442 is installed on one side of the centrifugal brake structure 441, a connecting block is installed on one side of the bimetallic strip 442, a brake block 443 is installed on one end of the connecting block, a long rod 444 is installed on the connecting block, one end of the long rod 444 is rotatably connected to a short rod 445, one end of the short rod 445 is rotatably connected to a slider 446, the slider 446 slides on the fixed plate 421, and one end of the slider 446 is connected to a brake tooth.

[0027] The centrifugal braking structure 441 includes an outer shell 4411, which is installed on the inner side of the support frame 3. The inner shell 4411 is rotatably connected to the inner shell 4412, and a rotating block 4413 is installed inside the inner shell 4412. The inner shell 4412 is provided with a through groove, and the rotating block 4413 is provided with a sliding groove. A slide plate 4414 is slidably connected in the sliding groove. A guide rod is installed at one end of the slide plate 4414, and the guide rod slides in the through groove. A friction block 4416 is installed at one end of the guide rod, and the outer surface of the friction block 4416 is made of a material with a high friction coefficient. A second spring 4415 is sleeved on the outer surface of the guide rod, and one end of the second spring 4415 is installed on the slide plate 4414, and the other end of the second spring 4415 is installed on the inner wall of the inner shell 4412. The inner shell 4412 and the rotating block 4413 are installed on the third rotating shaft 422.

[0028] When a power outage or other unexpected situation causes the flipping speed to be too fast, the third rotating shaft 422 drives the inner shell 4412 and the rotating block 4413 to rotate, and the slide plate 4414 slides in the sliding groove under the action of centrifugal force. The slide plate 4414 slides in the direction away from the third rotating shaft 422, and the slide plate 4414 drives the guide rod to slide in the through groove, and the guide rod drives the friction block 4416 to slide until the friction block 4416 is against the inner wall of the outer shell 4411. When the friction block 4416 rotates around the third rotating shaft 422, it rubs against the inner wall of the outer shell 4411 quickly, generating friction braking force and heat, and the heat is transferred to the bimetallic strip 442. The metal sheet 442 bulges after sensing the heat, and the bimetallic sheet 442 drives the connecting block to move away from the housing 4411, and the connecting block drives the brake block 443 and the long rod 444 to move, and the brake block 443 abuts against the second gear 423 and the disk 424 to generate a secondary braking force, and the long rod 444 drives the short rod 445 to rotate, and the short rod 445 drives the slider 446 to slide on the fixed plate 421, and the slider 446 slides in the direction close to the second gear 423 until the brake tooth is stuck in the second gear 423, generating a tertiary braking force to prevent the printed matter or the device itself from overturning, colliding or other accidental damage due to inertia.

[0029] The guide device 45 includes a first rocker arm 451, which is mounted on the third rotating shaft 422. A sliding column is mounted on one end of the first rocker arm 451. One end of the first rocker arm 451 is rotatably connected to an intermediate rod 452. One end of the intermediate rod 452 is rotatably connected to a second rocker arm 453. One end of the second rocker arm 453 is mounted on the outer side of the support frame 3. A semicircular groove 454 is provided on the outer side of the support frame 3. The sliding column slides in the semicircular groove 454. A groove 458 and a rotating groove 456 are provided on one side of the semicircular groove 454. A fourth rotating shaft is mounted in the semicircular groove 454. A lever 455 is rotatably connected to the fourth rotating shaft. A third spring 457 is mounted on one end of the lever 455. A magnetic material is mounted on one side of the lever 455. The other end of the third spring 457 is mounted on the groove wall of the rotating groove 456. An electromagnet is mounted in the groove wall of the groove 458. The electromagnet is connected to the control system.

[0030] The third rotating shaft 422 drives the first rocking arm 451 to rotate, and the sliding column slides in the semicircular groove 454. The first rocking arm 451 drives the middle rod 452 to rotate, and the middle rod 452 drives the second rocking arm 453 to rotate. When flipping to 90 degrees, the sliding column pushes the lever 455 to rotate around the fourth rotating shaft. When the sliding column completely passes the lever 455, the third spring 457 pushes the lever 455 to rotate around the fourth rotating shaft to the initial position. When flipping to 180 degrees, the first rocking arm 451 is located at the dead point position to ensure the accuracy of the flipping. When the flipping device is returned to the center, the control system controls the electromagnet to energize, the electromagnet absorbs one side of the lever 455, and the sliding column slides to the initial position. When power failure or other emergencies occur, the sliding column will fall back to the initial position in the first half of the flip, and the sliding column will rest on the lever 455 in the second half of the flip. The groove wall of the rotating groove 456 will block the rotation of the lever 455, reduce the motion range of the sliding column, and reduce the damage to the product or device caused by inertia.

[0031] Working principle of the present invention: When in use, the feeding mechanism 2 is controlled to start, and the product is transported from the feeding mechanism 2 to the flip mechanism 4. The control system controls the first motor 5 to start, and the output shaft of the first motor 5 drives the large gear 414 to rotate, and the large gear 414 drives the small gear 415 to rotate around the large gear 414, and the small gear 415 drives the first rotating shaft to rotate around the large gear 414, and the first rotating shaft drives the swing rod 413 to move, and the swing rod 413 drives the connecting plate 416 to move, and the connecting plate 416 drives the second rotating shaft 417 to rotate, and the second rotating shaft 417 drives the first gear 418 to rotate, and the first gear 418 drives The second gear 423 is driven to rotate, the second gear 423 drives the third shaft 422 to rotate, and the third shaft 422 drives the rotating disk 425 to rotate. It accelerates rapidly in the first half of the flipping process, so that the printed product enters the flipping state in the shortest time, and automatically reduces the rotation speed in the second half when the flipping is about to be completed to achieve smooth deceleration. This high-speed front and low-speed back control not only greatly shortens the overall flipping time and improves work efficiency, but also can reduce the inertia and centrifugal force generated by high-speed rotation, thereby preventing the printed product from overturning or displacement due to excessively fast movement during the flipping process.

[0032] When the front half is flipped, the pawl is against the ratchet wheel, the rotating rod 4281 is stationary, the first connecting rod 4282 rotates around the rotating rod 4281, the first connecting rod 4282 drives the second connecting rod 4283 to slide on the horizontal plate 426, the second connecting rod 4283 slides in the direction away from the center of the rotating disk 425, the second connecting rod 4283 drives the connecting column 4284 to move, the connecting column 4284 drives the push-pull column 4291 to move, the push-pull column 4291 drives the cam 4293 to rotate around the fourth rotating shaft, and the cam One end of 4293 clamps the product. When the printed product starts to flip, the fixed structure 429 will gradually increase the clamping force to ensure that the printed product remains stable during the flipping process and is not prone to sliding or dislocation. At the same time, the third shaft 422 drives the first rocker 451 to rotate, and the sliding column slides in the semicircular groove 454. The first rocker 451 drives the middle rod 452 to rotate, and the middle rod 452 drives the second rocker 453 to rotate. When flipped to 90 degrees, the sliding column pushes the lever 455 to rotate around the fourth shaft.

[0033] When flipping the second half, the third spring 457 pushes the lever 455 to rotate around the fourth axis to the initial position. When flipping to 180 degrees, the first motor 5 is controlled to stop, and the first spring 4286 drives the rotating rod 4281 to rotate in the opposite direction. At this time, the ratchet slides on the pawl and rotates until it stops at the limit block 4287. The cam 4293 releases the product, and the control system controls the second motor to start. The second motor drives the roller 427 to rotate, and the roller 427 drives the product to be transported to the discharging mechanism 6. The discharging mechanism 6 transports the product to the next process, controls the first motor 5 to reverse, and the rotating disk 425 returns to the initial position. The control system controls the electromagnet to be energized, and the electromagnet adsorbs one side of the lever 455, and the sliding column slides to the initial position.

[0034] When a power outage or other emergency occurs that causes the flipping speed to be too fast, the third rotating shaft 422 drives the inner shell 4412 and the rotating block 4413 to rotate, and the slide plate 4414 slides in the sliding groove under the action of centrifugal force. The slide plate 4414 slides in the direction away from the third rotating shaft 422, and the slide plate 4414 drives the guide rod to slide in the through groove, and the guide rod drives the friction block 4416 to slide until the friction block 4416 is against the inner wall of the outer shell 4411. When the friction block 4416 rotates around the third rotating shaft 422, it rubs quickly against the inner wall of the outer shell 4411 to generate friction braking force and heat. The heat is transferred to the bimetallic strip 442, and the bimetallic strip 442 bulges after sensing the heat, and the bimetallic strip 442 drives the connecting block to move in the direction away from the outer shell 4411, and the connecting block drives the brake block 443 and the long Rod 444 moves, brake block 443 abuts against second gear 423 and disc 424, generating secondary braking force, long rod 444 drives short rod 445 to rotate, short rod 445 drives slider 446 to slide on fixed plate 421, slider 446 slides in the direction close to second gear 423 until brake tooth is engaged in second gear 423, generating tertiary braking force to prevent overturning, collision or other accidental damage of printed matter or device itself due to inertia. When the flipping speed is too high and the brake fails, the sliding column is reset to the initial position by gravity in the first half of the flipping, and the sliding column abuts against lever 455 in the second half of the flipping, and the groove wall of rotating groove 456 blocks the rotation of lever 455, thereby reducing the motion range of the sliding column and reducing the damage to the product or device due to inertia.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A tipping device with an anti-dumping function, characterized in that: The turning device comprises a workbench (1), on which a feeding mechanism (2), a support frame (3) and a discharging mechanism (6) are sequentially mounted along a discharging direction; a first motor (5) is mounted on one side of the support frame (3); a turning mechanism (4) is rotatably connected between two support frames (3); an output shaft of the first motor (5) is mounted on the turning mechanism (4); and the feeding mechanism (2), the first motor (5) and the discharging mechanism (6) are connected to a control system.

2. The tipping device with anti-tipping function according to claim 1, characterized in that: The turning mechanism (4) comprises a rotating device (42), the rotating device (42) being mounted between two support frames (3), a transmission device (41) being mounted on one side of the rotating device (42), an output shaft of the first motor (5) being mounted on the transmission device (41), a supporting wheel (43) being mounted on the other side of the rotating device (42), a locking device (44) being mounted on the inner side of the support frame (3), and a guiding device (45) being mounted on the outer side of the support frame (3).

3. The tipping device with anti-dumping function according to claim 2, characterized in that: The transmission device (41) comprises a first base (411) and a second base (412); the first base (411) and the second base (412) are mounted on a workbench (1); one side of the first base (411) is rotatably connected to a swing rod (413); one side of the swing rod (413) is rotatably connected to a first rotating shaft; one side of the first rotating shaft is mounted with a pinion (415); the other end of the first rotating shaft is mounted with a connecting plate (416); one end of the connecting plate (416) is mounted with a second rotating shaft (417); the second rotating shaft (417) rotates on the second base (412); one side of the pinion (415) is mounted with a large gear (414); one side of the large gear (414) is mounted on an output shaft of a first motor (5); and one side of the second rotating shaft (417) is mounted with a first gear (418).

4. The tipping device with anti-dumping function according to claim 3, characterized in that: The rotating device (42) comprises a fixed plate (421), one side of the fixed plate (421) is rotatably connected to a third rotating shaft (422), the third rotating shaft (422) rotates on the support frame (3), a second gear (423) and a disk (424) are mounted on the third rotating shaft (422), the second gear (423) is meshed with the first gear (418), the disk (424) abuts against the supporting wheel (43), a rotating disk (425) is rotatably connected inside the fixed plate (421), a transverse plate (426) and a roller (427) are mounted between the two rotating disks (425), a second motor is mounted on one end of the roller (427), a rotating structure (428) is mounted on one side of the rotating disk (425), a fixed structure (429) is slidably connected to the transverse plate (426), and the second motor is connected to a control system.

5. The tipping device with anti-dumping function according to claim 4, characterized in that: The rotating structure (428) comprises a rotating rod (4281), one side of the rotating disk (425) is rotatably connected to a cylinder, a ratchet is installed on the outer surface of the cylinder, the rotating rod (4281) is sleeved on the cylinder, the rotating rod (4281) rotates on one side of the rotating disk (425), a ratchet is installed on the inner side of the rotating rod (4281), one side of the rotating disk (425) is rotatably connected to a first connecting rod (4282), one side of the first connecting rod (4282) The side is rotatably connected with a second connecting rod (4283), the second connecting rod (4283) slides on the transverse plate (426), a connecting column (4284) is installed on one side of the second connecting rod (4283), and the connecting column (4284) is installed on the fixed structure (429), a fixed block (4285) and a limit block (4287) are installed on one side of the rotating disk (425), and a first spring (4286) is installed between the rotating rod (4281) and the fixed block (4285).

6. The tipping device with anti-dumping function according to claim 5, characterized in that: The fixed structure (429) comprises a push-pull column (4291), wherein the push-pull column (4291) slides on the transverse plate (426), the connecting column (4284) is mounted on the push-pull column (4291), one end of the push-pull column (4291) is rotatably connected to a cam (4293), a support block (4292) is mounted on one side of the transverse plate (426), a fourth rotating shaft is mounted on one side of the support block (4292), and the cam (4293) rotates on the fourth rotating shaft.

7. The tipping device with anti-dumping function according to claim 6, characterized in that: The locking device (44) comprises a centrifugal brake structure (441), the centrifugal brake structure (441) being mounted on the inner side of the support frame (3), a bimetallic strip (442) being mounted on one side of the centrifugal brake structure (441), a connecting block being mounted on one side of the bimetallic strip (442), a brake block (443) being mounted on one end of the connecting block, a long rod (444) being mounted on the connecting block, one end of the long rod (444) being rotatably connected to a short rod (445), one end of the short rod (445) being rotatably connected to a slider (446), the slider (446) sliding on the fixed plate (421), and one end of the slider (446) being connected to a brake tooth.

8. The tipping device with anti-dumping function according to claim 7, characterized in that: The centrifugal brake structure (441) comprises an outer shell (4411), the outer shell (4411) is mounted on the inner side of the support frame (3), the inner shell (4411) is rotatably connected to an inner shell (4412), a rotating block (4413) is mounted inside the inner shell (4412), a through groove is provided on the inner shell (4412), a sliding groove is provided on the rotating block (4413), a slide plate (4414) is slidably connected to the sliding groove, and the slide plate (4414) is slidably connected to the inner shell (4412). 14) is provided with a guide rod at one end, the guide rod slides in the through groove, a friction block (4416) is provided at one end of the guide rod, a second spring (4415) is sleeved on the outer surface of the guide rod, one end of the second spring (4415) is provided on the slide plate (4414), the other end of the second spring (4415) is provided on the inner wall of the inner shell (4412), and the inner shell (4412) and the rotating block (4413) are provided on the third rotating shaft (422).

9. The tipping device with anti-dumping function according to claim 8, characterized in that: The guide device (45) comprises a first rocker (451), the first rocker (451) being mounted on a third rotating shaft (422), a sliding column being mounted on one end of the first rocker (451), one end of the first rocker (451) being rotatably connected to an intermediate rod (452), one end of the intermediate rod (452) being rotatably connected to a second rocker (453), one end of the second rocker (453) being mounted on the outer side of a support frame (3), the outer side of the support frame (3) being provided with a semicircular groove (454), the The sliding column slides in the semicircular groove (454), one side of the semicircular groove (454) is provided with a groove (458) and a rotating groove (456), a fourth rotating shaft is installed in the semicircular groove (454), a lever (455) is rotatably connected to the fourth rotating shaft, a third spring (457) is installed at one end of the lever (455), the other end of the third spring (457) is installed on the groove wall of the rotating groove (456), an electromagnet is installed in the groove wall of the groove (458), and the electromagnet is connected to the control system.

10. The tipping device with anti-dumping function according to claim 9, characterized in that: One end of the cam (4293) is installed with a silicone material, the outer surface of the friction block (4416) is made of a material with a high friction coefficient, and one side of the lever (455) is installed with a magnetic material.

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