A tipping prevention function-equipped flipping device

Abstract

The present invention discloses a tipping prevention flipping device, which relates to the technical field of flipping devices. The flipping device includes a workbench, a feeding mechanism, a support frame, a flipping mechanism, a first motor and a discharging mechanism. The flipping mechanism can automatically adjust the clamping force according to the flipping angle, automatically release when the printed matter is in place, quickly accelerate in the first half of the flipping process, and automatically reduce the rotation speed in the second half of the flipping process to achieve smooth deceleration. This not only shortens the flipping time, but also prevents the printed matter from tipping over or shifting due to excessive movement during the flipping process, ensuring that each flip is accurate and stable. At the same time, when encountering power failure or other emergencies that cause the flipping speed to be too fast, the device is automatically braked multiple times to prevent the printed matter or the device itself from tipping over, colliding or suffering other accidental damages due to inertia, making the entire flipping process smooth and accurate, thereby ensuring the reliability of the equipment operation.

Description

Technical Field

[0001] The present invention relates to the technical field of flipping devices, and more specifically, to a flipping device with an anti-tipping function. Background Art

[0002] In the actual production process of the printing industry at present, it is usually necessary to perform printing operations on both sides of printed matter. For double-sided printing operations of large-format printed matter, manual participation is generally required. After the front-side graphics and texts of the printed matter are printed, it is necessary to adopt a manual handling method. Multiple operators respectively hold the four corners of the printed matter and perform an in-air flipping operation based on experience to flip the large-format printed matter by 180 degrees for back-side printing. This flipping method has defects in actual production: the efficiency of manual flipping is low, the labor intensity is high, and when flipping a large-format printed matter, it is easy to cause harm to the operators themselves; creases or ink smudging are likely to occur during the flipping process of large printed matter, affecting the printing quality, resulting in an increase in the rejection rate and affecting the production efficiency. Summary of the Invention

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

[0004] To achieve the above purpose, the present invention provides the following technical solution: The flipping device includes a workbench, on which an inlet mechanism, a support frame, and an outlet mechanism are sequentially installed along the material outlet direction. A first motor is installed on one side of the support frame. A flipping mechanism is rotatably connected between the two support frames, and the output shaft of the first motor is installed on the flipping mechanism. The inlet mechanism, the first motor, and the outlet mechanism are connected to a control system. When in use, the inlet mechanism is controlled to start, the product is conveyed from the inlet mechanism to the flipping mechanism, the control system controls the first motor to start, the first motor drives the flipping mechanism to start, after the flipping mechanism flips the product by 180 degrees, the product is conveyed to the outlet mechanism, and the outlet mechanism is controlled to convey the product to the next process.

[0005] The flipping mechanism includes a rotating device installed between the two support 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 support wheel is installed on the other side of the rotating device. A locking device is installed inside the support frame, and a guiding device is installed outside the support frame.

[0006] The transmission device includes a first base and a second base. The first base and the second base are installed on the workbench. A swing rod is rotatably connected to one side of the first base. A first rotating shaft is rotatably connected to one side of the swing rod. A small gear is installed on one side of the first rotating shaft. A connecting plate is installed at the other end of the first rotating shaft. A second rotating shaft is installed at one end of the connecting plate. The second rotating shaft rotates on the second base. A large gear is installed on one side of the small gear. The large gear is installed on the output shaft of the first motor. A first gear is installed on one side of the second rotating shaft. 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. The second rotating shaft drives the first gear to rotate. It accelerates rapidly in the first half of the startup process of the flipping, so that the printed matter enters the flipping state in the shortest time. In the second half when the flipping is about to be completed, the rotation speed is automatically reduced to achieve smooth deceleration. This speed regulation of high at the front and low at the back not only greatly shortens the overall flipping time and improves work efficiency, but also can reduce the inertial force and centrifugal force generated by high-speed rotation, preventing the printed matter from tipping over or shifting due to excessive movement during the flipping process.

[0007] The rotating device includes a fixing plate. A third rotating shaft is rotatably connected to one side of the fixing plate. The third rotating shaft rotates on the support frame. A second gear and a disc are installed on the third rotating shaft. The second gear meshes with the first gear. The disc abuts against the support wheel. A rotating disc is rotatably connected inside the fixing plate. A cross plate and a roller are installed between the two rotating discs. A second motor is installed at one end of the roller. A rotating structure is installed on one side of the rotating disc. A fixing structure is slidably connected to the cross plate. The second motor is connected to the 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. The third rotating shaft drives the rotating disc to rotate.

[0008] The rotating structure includes a rotating rod. A cylinder is rotatably connected to one side of the rotating disc. 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 disc. A ratchet is installed inside the rotating rod. A first connecting rod is rotatably connected to one side of the rotating disc. 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 fixing structure. A fixing block and a limiting block are installed on one side of the rotating disc. A first spring is installed between the rotating rod and the fixing block.

[0009] The fixing structure includes a push-pull column which slides on the cross plate. A 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 cross plate, and 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 ratchet pawl abuts against 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 cross plate. The second connecting rod slides in a direction away from the center of the rotating disk. The second connecting rod drives the connecting column to move, 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 matter starts to flip, the fixing structure will gradually increase the clamping force to ensure that the printed matter always remains stable during the flipping process and is not prone to sliding or dislocation. When the flipping is in place, the first motor stops, and the first spring drives the rotating rod to rotate in the reverse direction. At this time, the ratchet wheel slides on the ratchet pawl and stops rotating until it reaches the limit block. The cam releases the product, and the control system controls the second motor to start. The second motor drives the roller to rotate, and the roller drives the product to be conveyed onto the discharging mechanism. The discharging mechanism conveys the product to the next process.

[0010] The locking device includes a centrifugal braking structure which is installed inside 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. One end of the connecting block is installed with a braking 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 the fixed plate. One end of the slider is connected with a braking tooth.

[0011] The centrifugal braking structure includes a housing, which is installed inside the support frame. An inner housing is rotatably connected inside the housing. A rotating block is installed inside the inner housing. A through groove is provided on the inner housing, and a sliding groove is provided on the rotating block. A sliding plate is slidably connected in the sliding groove. One end of the sliding plate is installed with a guide rod, and the guide rod slides in the through groove. One end of the guide rod is installed with a friction block. A second spring is sleeved on the outer surface of the guide rod. One end of the second spring is installed on the sliding plate, and the other end of the second spring is installed on the inner wall of the inner housing. The inner housing and the rotating block are installed on the third rotating shaft. When a power failure or other unexpected situation causes the flipping speed to be too fast, the third rotating shaft drives the inner housing and the rotating block to rotate. The sliding plate slides in the sliding groove under the action of centrifugal force. The sliding plate slides away from the third rotating shaft. The sliding plate drives the guide rod to slide in the through groove, and the guide rod drives the friction block to slide until the friction block abuts against the inner wall of the housing. When the friction block rotates around the third rotating shaft, it quickly rubs against the inner wall of the housing, generating frictional braking force and heat. The heat is transferred to the bimetallic strip. After the bimetallic strip senses the heat, it bulges. The bimetallic strip drives the connecting block to move away from the housing. The connecting block drives the brake block and the long rod to move. The brake block abuts against the second gear and the disc, generating secondary braking force. The long rod drives the short rod to rotate, and the short rod drives the slider to slide on the fixed plate. The slider slides towards the second gear until the brake teeth are engaged in the second gear, generating tertiary braking force, preventing the printed matter or the device itself from tipping over, colliding or suffering other accidental damages due to inertia.

[0012] The guiding device includes a first rocker arm, which is installed on the third rotating shaft. One end of the first rocker arm is equipped with a sliding column. 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 installed on the outside of the support frame. A semi-circular groove is provided on the outside of the support frame. The sliding column slides in the semi-circular groove. A groove and a rotating groove are provided on one side of the semi-circular groove. A fourth rotating shaft is installed in the semi-circular groove. A lever is rotatably connected to the fourth rotating shaft. One end of the lever is equipped with a third spring, and the other end of the third spring is installed on the groove wall of the rotating groove. An electromagnet is installed in the groove wall of the groove, and the electromagnet is connected to the control system. The third rotating shaft drives the first rocker arm to rotate. The sliding column slides in the semi-circular groove. The first rocker arm drives the intermediate rod to rotate, and the intermediate rod drives the second rocker arm to rotate. When it is 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 it is flipped to 180 degrees, the first rocker arm is at the dead center position to ensure the accuracy of flipping. When the flipping device returns to the correct position, the control system controls the electromagnet to be energized, and the electromagnet adsorbs one side of the lever, and the sliding column slides to the initial position. When a power failure or other unexpected situations occur, the sliding column will fall back to the initial position in the first half of the flip, and the sliding column will abut against the lever in the second half of the flip. The groove wall of the rotating groove will block the rotation of the lever, reducing the movement range of the sliding column and reducing the damage caused 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 coefficient of friction. One side of the lever is installed with a magnetic material.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The transmission device of the present invention adopts an intelligent speed regulation technology, enabling the flipping process to accelerate rapidly in the first half of the start, so that the printed matter can enter the flipping state in the shortest time; while in the second half when the flipping is about to be completed, the rotation speed is automatically reduced to achieve smooth deceleration. This speed regulation with a high front and low back not only greatly shortens the overall flipping time and improves work efficiency, but also reduces the inertial force and centrifugal force generated by high-speed rotation, preventing the printed matter from toppling or displacing due to excessive movement during the flipping process, ensuring that each flip is accurate and stable, thereby improving the overall quality and reliability of the printed product;

[0016] 2. The present invention adopts multiple braking technologies. When encountering a power failure or other emergencies that cause the flipping speed to be too fast, the multiple braking system is automatically activated. First, frictional resistance is generated through the centrifugal braking structure. Secondly, the bimetallic strip thermally deforms to push the brake block into contact with the gear. Finally, the braking teeth on the slider lock the gear. The triple braking acts synergistically to prevent the printed matter or the device itself from tipping over, colliding, or suffering other accidental damages due to inertia. At the same time, the use of a pure mechanical structure for braking can operate normally in any state without external power support, improving the reaction speed and reliability of the braking system;

[0017] 3. The fixing structure of the present invention can automatically adjust the clamping force according to the flipping angle. When the printed matter starts to flip, the fixing structure will gradually increase the clamping force to ensure that the printed matter always remains stable during the flipping process and is not prone to sliding or misalignment. It will automatically release when the printed matter is 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 precise, thereby ensuring the reliability of the equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the flipping device of the present invention;

[0019] Figure 2 is a perspective view of the flipping mechanism of the present invention;

[0020] Figure 3 is a perspective view of the transmission device of the present invention;

[0021] Figure 4 is a perspective view of the rotating device of the present invention;

[0022] Figure 5 is a perspective view of the rotating structure of the present invention;

[0023] Figure 6 is a perspective view of the fixing structure of the present invention;

[0024] Figure 7 is a perspective view of the locking structure of the present invention;

[0025] Figure 8 is an exploded view of the centrifugal braking structure of the present invention;

[0026] Figure 9 is a perspective view of the guiding device of the present invention.

[0027] In the figure: 1, workbench; 2, feeding mechanism; 3, support frame; 4, flipping 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, fixing plate; 422, third rotating shaft; 423, second gear; 424, disc; 425, rotating disc; 426, cross plate; 427, roller; 428, rotating structure; 4281, rotating rod; 4282, first connecting rod; 4283, second connecting rod; 4284, connecting column; 4285, fixing block; 4286, first spring; 4287, limiting block; 429, fixing structure; 4291, pushing and pulling column; 4292, supporting block; 4293, cam; 43, supporting wheel; 44, locking device; 441, centrifugal braking structure; 4411, outer shell; 4412, inner shell; 4413, rotating block; 4414, sliding plate; 4415, second spring; 4416, friction block; 442, bimetallic strip; 443, braking block; 444, long rod; 445, short rod; 446, slider; 45, guiding device; 451, first rocker; 452, intermediate rod; 453, second rocker; 454, semi-circular groove; 455, lever; 456, rotating groove; 457, third spring; 458, groove; 5, first motor; 6, discharging mechanism. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment: As Figures 1-9 shown, the present invention provides a technical solution. The flipping device includes a workbench 1. Along the discharging direction on the workbench 1, a feeding mechanism 2, a support frame 3, and a discharging mechanism 6 are sequentially installed. 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. The feeding mechanism 2, the first motor 5, and the discharging mechanism 6 are connected to a control system. During use, the feeding mechanism 2 is controlled to start, and the product is conveyed from the feeding mechanism 2 to the flipping mechanism 4. The control system controls the first motor 5 to start, and the first motor 5 drives the flipping mechanism 4 to start. After the flipping mechanism 4 flips the product by 180 degrees, the product is conveyed to the discharging mechanism 6, and the discharging mechanism 6 is controlled to convey the product to the next process.

[0030] The flipping mechanism 4 includes a rotating device 42. The rotating device 42 is installed between two support frames 3. A transmission device 41 is installed on one side of the rotating device 42. 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 guiding device 45 is installed on the outer side of the support frame 3.

[0031] 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. A swing rod 413 is rotatably connected to one side of the first base 411. A first rotating shaft is rotatably connected to one side of the swing rod 413. A small gear 415 is installed on one side of the first rotating shaft. A connecting plate 416 is installed at the other end of the first rotating shaft. One end of the connecting plate 416 is installed with a second rotating shaft 417. 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. A first gear 418 is installed on one side of the second rotating shaft 417.

[0032] 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. The second rotating shaft 417 drives the first gear 418 to rotate. It accelerates rapidly in the first half of the flipping process to enable the printed matter to enter the flipping state in the shortest time. In the second half when the flipping is about to be completed, the rotation speed is automatically reduced to achieve smooth deceleration. This speed regulation with a high front and low back not only greatly shortens the overall flipping time and improves work efficiency, but also can reduce the inertial force and centrifugal force generated by high-speed rotation, preventing the printed matter from tipping over or shifting due to excessive movement during the flipping process.

[0033] The rotating device 42 includes a fixing plate 421. One side of the fixing 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 disc 424 are installed on the third rotating shaft 422. The second gear 423 meshes with the first gear 418. The disc 424 abuts against the support wheel 43. Inside the fixing plate 421, there is a rotatable turntable 425. A cross plate 426 and a roller 427 are installed between the two turntables 425. One end of the roller 427 is equipped with a second motor. A rotating structure 428 is installed on one side of the turntable 425. A fixing structure 429 is slidably connected to the cross plate 426. 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 turntable 425 to rotate.

[0034] The rotating structure 428 includes a rotating rod 4281. One side of the turntable 425 is rotatably connected to a cylinder. Pawls are 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 turntable 425. A ratchet wheel is installed inside the rotating rod 4281. One side of the turntable 425 is rotatably connected to a first connecting rod 4282. One side of the first connecting rod 4282 is rotatably connected to a second connecting rod 4283. 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. The connecting column 4284 is installed on the fixing structure 429. A fixing block 4285 and a limiting block 4287 are installed on one side of the turntable 425. A first spring 4286 is installed between the rotating rod 4281 and the fixing block 4285.

[0035] The fixing structure 429 includes a push-pull column 4291. The push-pull column 4291 slides on the cross 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 cross 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. A silicone material is installed at one end of the cam 4293.

[0036] When the rotating disc 425 rotates, the pawl abuts 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 cross plate 426. The second connecting rod 4283 slides in a direction away from the center of the rotating disc 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 starts to flip, the fixing structure 429 gradually increases the clamping force to ensure that the printed matter always remains stable during the flipping process and is not prone to sliding or misalignment. 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 reverse direction. At this time, the ratchet wheel slides on the pawl and rotates until it stops at the limit block 4287. The cam 4293 releases the product. The control system controls the second motor to start. The second motor drives the roller 427 to rotate. The roller 427 drives the product to be conveyed to the discharging mechanism 6, and the discharging mechanism 6 conveys the product to the next process.

[0037] The locking device 44 includes a centrifugal braking structure 441. The centrifugal braking structure 441 is installed inside the support frame 3. One side of the centrifugal braking structure 441 is provided with a bimetallic strip 442. One side of the bimetallic strip 442 is provided with a connecting block. One end of the connecting block is provided with a braking block 443. 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 fixing plate 421. One end of the slider 446 is connected with a braking tooth.

[0038] The centrifugal braking structure 441 includes a housing 4411. The housing 4411 is installed inside the support frame 3. The inside of the housing 4411 is rotatably connected with an inner housing 4412. The inside of the inner housing 4412 is provided with a rotating block 4413. The inner housing 4412 is provided with a through groove. The rotating block 4413 is provided with a sliding groove. A sliding plate 4414 is slidably connected in the sliding groove. One end of the sliding plate 4414 is provided with a guiding rod. The guiding rod slides in the through groove. One end of the guiding rod is provided with a friction block 4416. The outer surface of the friction block 4416 is made of a material with a high coefficient of friction. The outer surface of the guiding rod is sleeved with a second spring 4415. One end of the second spring 4415 is installed on the sliding plate 4414, and the other end of the second spring 4415 is installed on the inner wall of the inner housing 4412. The inner housing 4412 and the rotating block 4413 are installed on the third rotating shaft 422.

[0039] When encountering a power outage or other emergencies that cause the flipping speed to be too fast, the third rotating shaft 422 drives the inner shell 4412 and the rotating block 4413 to rotate. The sliding plate 4414 slides in the sliding groove under the action of centrifugal force. The sliding plate 4414 slides away from the third rotating shaft 422. The sliding 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 abuts against the inner wall of the outer shell 4411. When the friction block 4416 rotates around the third rotating shaft 422, it quickly rubs against the inner wall of the outer shell 4411, generating frictional braking force and heat. The heat is transferred to the bimetallic strip 442. After the bimetallic strip 442 senses the heat, it bulges. The bimetallic strip 442 drives the connecting block to move away from the outer shell 4411. The connecting block drives the brake block 443 and the long rod 444 to move. The brake block 443 abuts against the second gear 423 and the disc 424, generating secondary braking force. 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. The slider 446 slides towards the second gear 423 until the braking teeth are engaged in the second gear 423, generating tertiary braking force, preventing the printed matter or the device itself from tipping over, colliding or suffering other accidental damages due to inertia.

[0040] The guiding device 45 includes a first rocker 451. The first rocker 451 is installed on the third rotating shaft 422. A sliding column is installed at one end of the first rocker 451. One end of the first rocker 451 is rotatably connected to an intermediate rod 452. One end of the intermediate rod 452 is rotatably connected to a second rocker 453. One end of the second rocker 453 is installed on the outside of the support frame 3. A semi-circular groove 454 is provided on the outside of the support frame 3. The sliding column slides in the semi-circular groove 454. A groove 458 and a rotating groove 456 are provided on one side of the semi-circular groove 454. A fourth rotating shaft is installed in the semi-circular 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. A magnetic material is installed on one side of the lever 455. The other end of the third spring 457 is installed on the wall of the rotating groove 456. An electromagnet is installed in the wall of the groove 458, and the electromagnet is connected to the control system.

[0041] The third rotating shaft 422 drives the first rocker 451 to rotate. The sliding column slides within the semi-circular groove 454. The first rocker 451 drives the intermediate rod 452 to rotate, and the intermediate rod 452 drives the second rocker 453 to rotate. When it is flipped to 90 degrees, the sliding column pushes the lever 455 to rotate around the fourth rotating shaft. When the sliding column completely passes by the lever 455, the third spring 457 pushes the lever 455 to rotate around the fourth rotating shaft back to the initial position. When it is flipped to 180 degrees, the first rocker 451 is at the dead point position, ensuring the accuracy of the flip. When the flipping device returns to the normal position, the control system controls the electromagnet to be energized, and the electromagnet adsorbs one side of the lever 455. The sliding column slides back to the initial position. When there is a power outage or other emergencies, the sliding column will fall back to the initial position during the first half of the flip, and the sliding column will abut against the lever 455 during the second half of the flip. The groove wall of the rotating groove 456 will block the rotation of the lever 455, reducing the movement range of the sliding column and reducing the damage caused to the product or device due to inertia.

[0042] The working principle of the present invention:

[0043] During use, the feeding mechanism 2 is controlled to start, and the product is conveyed from the feeding mechanism 2 to the flipping mechanism 4. 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. The second rotating shaft 417 drives the first gear 418 to rotate. The first gear 418 drives the second gear 423 to rotate. The second gear 423 drives the third rotating shaft 422 to rotate. The third rotating shaft 422 drives the rotating disk 425 to rotate, accelerating rapidly in the first half of the flipping process to enable the printed matter to enter the flipping state in the shortest time. In the second half when the flip is about to be completed, the rotation speed is automatically reduced to achieve smooth deceleration. This speed regulation with a high front and low rear not only greatly shortens the overall flipping time and improves work efficiency but also can reduce the inertial force and centrifugal force generated by high-speed rotation, preventing the printed matter from tipping over or shifting due to excessive movement during the flipping process.

[0044] When flipping the first half, at this time the pawl abuts against the ratchet wheel, and at this time the rotating rod 4281 does not move. 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 cross 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 starts to flip, the fixing structure 429 will gradually increase the clamping force to ensure that the printed matter always remains stable during the flipping process and is not prone to sliding or misalignment. At the same time, the third rotating shaft 422 drives the first rocker 451 to rotate. The sliding column slides in the semi-circular groove 454. The first rocker 451 drives the intermediate rod 452 to rotate. The intermediate rod 452 drives the second rocker 453 to rotate. When flipping to 90 degrees, the sliding column pushes the lever 455 to rotate around the fourth rotating shaft.

[0045] When flipping the second half, 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 control stops the first motor 5. The first spring 4286 drives the rotating rod 4281 to rotate in the reverse direction. At this time, the ratchet wheel slides on the pawl and rotates until it stops at the limit block 4287. The cam 4293 releases the product. The control system controls the second motor to start. The second motor drives the roller 427 to rotate. The roller 427 drives the product to be conveyed to the discharging mechanism 6. The discharging mechanism 6 conveys the product to the next process. The control reverses the first motor 5, and the rotating disk 425 returns to the initial position. The control system controls the electromagnet to be energized. The electromagnet adsorbs one side of the lever 455, and the sliding column slides to the initial position.

[0046] When encountering a power outage or other emergencies that cause the flipping speed to be too fast, the third rotating shaft 422 drives the inner shell 4412 and the rotating block 4413 to rotate. The sliding plate 4414 slides in the sliding groove under the action of centrifugal force. The sliding plate 4414 slides away from the third rotating shaft 422. The sliding 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 abuts against the inner wall of the outer shell 4411. When the friction block 4416 rotates around the third rotating shaft 422, it quickly rubs against the inner wall of the outer shell 4411, generating frictional braking force and heat. The heat is transferred to the bimetallic strip 442. After the bimetallic strip 442 senses the heat, it bulges. The bimetallic strip 442 drives the connecting block to move away from the outer shell 4411. The connecting block drives the brake block 443 and the long rod 444 to move. The brake block 443 abuts against the second gear 423 and the disc 424, generating secondary braking force. 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. The slider 446 slides towards the second gear 423 until the brake tooth engages into the second gear 423, generating tertiary braking force, preventing the printed matter or the device itself from tipping over, colliding or suffering other accidental damages due to inertia. When the braking fails due to excessive flipping speed, the sliding column resets to the initial position under the action of gravity in the first half of the flip. When the sliding column is in the second half of the flip, it will abut against the lever 455. The groove wall of the rotating groove 456 will block the rotation of the lever 455, reducing the movement range of the sliding column and reducing the damage caused to the product or device due to inertia.

[0047] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A tipping prevention function-equipped flipping device, characterized in that: The flipping device includes a workbench (1). An inlet mechanism (2), a support frame (3), and an outlet mechanism (6) are sequentially installed on the workbench (1) along the outlet 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). The inlet mechanism (2), the first motor (5), and the outlet mechanism (6) are connected to a control system; The flipping mechanism (4) includes a rotating device (42). The rotating device (42) includes a fixing plate (421). A rotating disk (425) is rotatably connected inside the fixing plate (421). A rotating structure (428) is installed on one side of the rotating disk (425). A cross plate (426) and a roller (427) are installed between the two rotating disks (425). A fixing structure (429) is slidably connected to the cross plate (426); The rotating structure (428) includes a rotating rod (4281). A cylinder is rotatably connected to one side of the rotating disk (425). Pawls are 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 wheel is installed inside 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). The connecting column (4284) is installed on the fixing structure (429). A fixing block (4285) and a limiting block (4287) are installed on one side of the rotating disk (425). A first spring (4286) is installed between the rotating rod (4281) and the fixing block (4285); The fixing structure (429) includes a push-pull column (4291). The push-pull column (4291) slides on the cross 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 cross 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.

2. The tipping prevention device according to claim 1, characterized in that: The rotating device (42) is installed between the two support frames (3). A transmission device (41) is installed on one side of the rotating device (42). 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 inside the support frame (3). A guiding device (45) is installed outside the support frame (3).

3. The tipping prevention device according to claim 2, characterized in that: 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). A swing rod (413) is rotatably connected to one side of the first base (411). A first rotating shaft is rotatably connected to one side of the swing rod (413). A small gear (415) is installed on one side of the first rotating shaft. A connecting plate (416) is installed at the other end of the first rotating shaft. A second rotating shaft (417) is installed at one end of the connecting plate (416). 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). The large gear (414) is installed on the output shaft of the first motor (5). A first gear (418) is installed on one side of the second rotating shaft (417).

4. The tipping prevention type turnover device according to claim 3, characterized in that: A third rotating shaft (422) is rotatably connected to one side of the fixing plate (421). The third rotating shaft (422) rotates on the support frame (3). A second gear (423) and a disc (424) are installed on the third rotating shaft (422). The second gear (423) meshes with the first gear (418). The disc (424) abuts against the support wheel (43). A second motor is installed at one end of the roller (427). The second motor is connected to the control system.

5. A tipping prevention function-equipped flipping device according to claim 4, characterized in that: The locking device (44) includes a centrifugal braking structure (441). The centrifugal braking structure (441) is installed inside the support frame (3). A bimetallic strip (442) is installed on one side of the centrifugal braking structure (441). A connecting block is installed on one side of the bimetallic strip (442). A brake block (443) is installed at one end of the connecting block. A long rod (444) is installed on the connecting block. A short rod (445) is rotatably connected to one end of the long rod (444). A slider (446) is rotatably connected to one end of the short rod (445). The slider (446) slides on the fixing plate (421). A braking tooth is connected to one end of the slider (446).

6. The tipping prevention type turnover device according to claim 5, characterized in that: The centrifugal braking structure (441) includes a housing (4411). The housing (4411) is installed inside the support frame (3). An inner housing (4412) is rotatably connected inside the housing (4411). A rotating block (4413) is installed inside the inner housing (4412). A through groove is provided on the inner housing (4412). A sliding groove is provided on the rotating block (4413). A sliding plate (4414) is slidably connected in the sliding groove. One end of the sliding plate (4414) is installed with a guide rod. The guide rod slides in the through groove. A friction block (4416) is installed 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 installed on the sliding plate (4414), and the other end of the second spring (4415) is installed on the inner wall of the inner housing (4412). The inner housing (4412) and the rotating block (4413) are installed on the third rotating shaft (422).

7. A turnover device with an anti-tipping function according to claim 6, characterized in that: The guiding device (45) includes a first rocker (451). The first rocker (451) is installed on the third rotating shaft (422). A sliding column is installed at one end of the first rocker (451). One end of the first rocker (451) is rotatably connected to an intermediate rod (452). One end of the intermediate rod (452) is rotatably connected to a second rocker (453). One end of the second rocker (453) is installed outside the support frame (3). A semi-circular groove (454) is provided outside the support frame (3). The sliding column slides in the semi-circular groove (454). A groove (458) and a rotating groove (456) are provided on one side of the semi-circular groove (454). A fourth rotating shaft is installed in the semi-circular 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). The electromagnet is connected to the control system.

8. The tipping prevention device according to claim 7, wherein: Silicone material is installed at one end of the cam (4293). The outer surface of the friction block (4416) is made of a material with a high friction coefficient. Magnetic material is installed on one side of the lever (455).

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