Differential round corner cutting equipment

Abstract

The invention relates to differential round corner cutting equipment which comprises a rack, and the rack is provided with a conveying mechanism used for conveying products, a blocking and returning mechanism used for positioning the products before cutting and a cutting mechanism used for cutting the products. The conveying mechanism comprises a plurality of side-by-side conveying belts, driven shafts arranged at the starting ends or the tail ends of the conveying belts, first driving shafts arranged in the middles or the tails of the conveying belts and used for driving the single-sequence conveying belts to operate, and second driving shafts arranged in the middles or the tails of the conveying belts and used for driving the double-sequence conveying belts to operate. The conveying mechanism drives the multiple conveying belts with different speeds, so that the speeds of the adjacent products are different, the books are effectively separated when conveyed, interference of the adjacent books is avoided, and therefore the positions of the round corners are accurately cut.

Description

Technical Field

[0001] This invention belongs to the technical field of book production equipment, and in particular, it is a differential speed corner rounding device. Background Technology

[0002] A corner rounding machine is a widely used piece of equipment in industries such as packaging, printing, plastic products, woodworking, and paper processing. It is used to cut the right-angled edges of workpieces (such as cardboard, thin metal sheets, plastic sheets, books, etc.) into rounded corners to achieve aesthetic, safety, or specific process requirements.

[0003] The existing patent text with publication number CN221391314U discloses an automatic corner rounding machine. Before rounding, a clamping assembly is set up, and a slider is connected to a limiting plate via a support plate. When adjusting the limiting plate, a telescopic cylinder and a clamping block move with the limiting plate via the slider. The clamping block is always above the limiting plate. The telescopic cylinder drives the clamping block to press the edge of the material being cut, effectively preventing the edge of the material from lifting and avoiding corner rounding deviation. However, this invention still has a problem: when cutting large books, the conveyor belt has a certain speed, which may cause adjacent books to rub against each other, causing the books to deviate in position, resulting in inaccurate corner rounding. Summary of the Invention

[0004] This invention addresses the problem of inaccurate corner cutting caused by frictional displacement between adjacent books during conveyor belt transport in existing book production equipment. It proposes a differential corner cutting device that uses a differential drive conveyor mechanism to ensure that adjacent conveyor belts have different speeds, effectively separating the books during transport and preventing interference from adjacent books, thereby ensuring accurate corner cutting.

[0005] The above-mentioned technical problem of the present invention is solved by the following technical solution: a differential speed rounding corner cutting device, including a frame, a conveying mechanism for conveying products, a blocking mechanism for positioning products before cutting, and a cutting mechanism for cutting products. The conveying mechanism includes several parallel conveyor belts, a driven shaft disposed at the beginning or end of the conveyor belts, a first drive shaft disposed at the middle or end of the conveyor belts for driving an odd number of conveyor belts, and a second drive shaft disposed at the middle or end of the conveyor belts for driving an even number of conveyor belts. The first drive shaft is provided with several first transmission wheels that are matched and connected one-to-one with the odd number of conveyor belts. A number of second transmission wheels are spaced apart on the drive shaft and matched one-to-one with the double-row conveyor belts. A first transmission gear is connected to the first drive shaft, and a second transmission gear is connected to the second drive shaft. A transmission chain connects the first and second transmission gears. The first transmission gear and the first motor on the frame are connected by gears and the transmission chain to form a transmission. The diameter of the first transmission gear is R1, and the diameter of the second transmission gear is R2, where R1 = N*R2. The distance from the product cutting position to the starting position of the conveyor belt is H1 for the odd-row conveyor belts and H2 for the even-row conveyor belts, where N*H1 = H2. This arrangement separates the conveying mechanisms driven by the first and second drive shafts, ensuring that each pair of conveyor belts operates at different conveying speeds, effectively avoiding frictional displacement during book transport.

[0006] Preferably, the cutting mechanism includes an upper blade beam positioned above the conveyor mechanism, several fixed seats mounted on the upper blade beam, and a cam assembly for driving the upper blade beam to rise and fall. The upper blade beam has a first slider at its end, which is connected to a first slide rail, allowing the upper blade beam to slide up and down along the first slide rail. The fixed seats are positioned on both sides above the conveyor belt, and each fixed seat is equipped with a rounded blade. The first slide rail ensures that the upper blade beam remains on the same vertical plane during rising and falling, improving cutting stability.

[0007] Preferably, the cam assembly includes cams disposed on both sides of the inner side of the frame and a camshaft connecting the two cams. A first rod is provided on each cam, a connecting rod is provided at the end of the first rod away from the cam, a second rod is provided on the connecting rod near the first rod, and a third rod is provided at the end of the second rod away from the connecting rod. The second rod is hinged to the third rod, and the end of the third rod away from the second rod is connected to the upper cutter beam. A first motor drives the cams to raise and lower the upper cutter beam. The cam-linkage mechanism provides stable and sufficient downward pressure, ensuring clean and crisp cutting.

[0008] Preferably, the fixed base is provided with a downwardly extending clamping rod, a spring is sleeved on the outside of the clamping rod, a clamping block is provided at the lower end of the clamping rod, and an upper top block is provided below the clamping block and fixedly connected to the outside of each of the conveying plates. The clamping block and the upper top block cooperate with each other to clamp the book longitudinally when the cutting mechanism descends, improving the accuracy of cutting.

[0009] Preferably, the guide mechanism includes a first mounting beam spanning the conveying mechanism and a fixing member mounted on the first mounting beam. A first cylinder is mounted on the fixing member, and the first cylinder extends and retracts in a vertical direction. A front baffle is provided at the end of the piston rod of the first cylinder. The front baffle limits the front end of the book during the cutting process.

[0010] Preferably, the guide mechanism further includes second cylinders disposed on both sides of the frame and side baffles driven by the second cylinders and capable of moving in opposite directions. A guide rod is longitudinally provided at the end of the piston rod of the second cylinder, and the side baffles are mounted on the guide rods. The side baffles are disposed on both sides of the conveyor plate. The guide mechanism also includes a second mounting beam disposed above the conveyor belt, with mounting blocks on the second mounting beam. Each mounting block has a blocking block hinged to it, and the bottom of the blocking block abuts against the surface of the conveyor belt. The side baffles on both sides achieve lateral fixation of the book, the blocking blocks achieve rear-end fixation of the book, and the front baffle achieves fixation on all four sides. During the cutting process, the book is completely fixed, improving cutting accuracy.

[0011] Preferably, a tilting platform is provided on one side of the conveying mechanism, and a third drive shaft is provided on the tilting platform near the conveying mechanism. A third motor is provided on the inner wall of the frame, and the third motor is driven by the third drive shaft. Support plates are provided on both sides of the tilting platform, and a third cylinder is provided between the support plates and the frame. The piston shaft of the third cylinder is connected to the support plates. The tilting platform can tilt up and down, enabling the loading of books in another processing step.

[0012] Preferably, the first mounting beam has mounting seats on both sides, and each mounting seat has a second slider connected to a second slide rail, which is fixedly connected to the side wall of the frame. The first mounting beam can slide back and forth, accommodating books of different lengths for fixing, thus improving the efficiency of the equipment.

[0013] Preferably, a cutting mechanism and a blocking mechanism are provided above the conveyor belt driven by the first drive shaft and the conveyor belt driven by the second drive shaft, respectively, with each set of cutting mechanism and blocking mechanism spaced apart. This arrangement is designed to accommodate conveyor belts with different speeds; books moving at higher speeds are cut by the cutting mechanism at the front end, while books moving at lower speeds are cut by the cutting mechanism at the rear end, thus improving cutting efficiency.

[0014] Preferably, N is greater than or equal to 1.5. N being greater than or equal to 1.5 ensures that the speed difference between the two sets of conveyor belts is significant enough to effectively distribute the distance between the books.

[0015] In summary, the present invention has the following advantages compared with the prior art: This invention features a conveyor mechanism with speed differences. By having odd and even-numbered conveyor belts run at different speeds and stagger their cutting positions proportionally, it cleverly achieves synchronous cutting of all products at the same physical cutting point. The books are driven forward at different speeds on a continuously conveying plane, causing adjacent physical books to be staggered, avoiding friction and displacement between adjacent books, and improving cutting accuracy. The present invention provides baffles and blocks in various directions below the cutting mechanism, as well as a clamping block in the vertical direction, which realizes the fixation of the book in various directions during cutting and further improves the cutting accuracy; the spring-pressurized clamping block cooperates with the follow-up top block to provide a stable and adaptive clamping force at the moment of cutting, effectively preventing product displacement or warping and significantly reducing the product defect rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the conveying mechanism of the present invention; Figure 3 This is a schematic diagram of the cutting mechanism and the blocking mechanism of the present invention; Figure 4 This is a schematic diagram of the cam assembly of the present invention; Figure 5 This is a schematic diagram of the cutting mechanism and the blocking mechanism of the present invention; Figure 6 This is a partially enlarged view of the present invention; Figure 7 This is a schematic diagram of the blocking mechanism and conveying mechanism of the present invention; Figure 8 This is a schematic diagram of the flipping platform of the present invention.

[0017] The diagram is labeled as follows: 1. Frame; 2. Conveying mechanism; 22. First drive wheel; 23. Conveyor belt; 24. Driven shaft; 25. Second drive wheel; 3. Cutting mechanism; 31. Upper blade beam; 32. Fixed seat; 321. Clamping rod; 322. Spring; 323. Clamping block; 324. Rounded blade; 325. Upper top block; 33. Cam assembly; 331. Cam; 332. Camshaft; 333. First link; 334. Connecting rod; 335. Second link; 336. Third link; 34. First slider; 35. First slide rail; 4. Return mechanism; 41. 411. First mounting beam; 412. Mounting base; 413. Second slider; 414. Second slide rail; 415. Fixing component; 416. First cylinder; 417. Front baffle; 418. Second cylinder; 419. Side baffle; 42. Stop bar; 43. Second mounting beam; 44. Mounting block; 45. Blocking block; 56. First drive shaft; 57. First transmission gear; 58. Second drive shaft; 59. Second transmission gear; 50. First motor; 510. Transmission chain; 711. Tilting platform; 721. Third drive shaft; 731. Third motor; 741. Support plate; 75. Third cylinder. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figures 1 to 8The differential speed corner rounding device shown includes a frame 1, on which a conveyor mechanism 2 for conveying products, a pre-cutting positioning mechanism 4 for positioning products, and a cutting mechanism 3 for cutting products are mounted. The conveyor mechanism 2 includes several parallel conveyor belts 23, a driven shaft 24 located at the beginning or end of the conveyor belts 23, a first drive shaft 51 located in the middle or end of the conveyor belts 23 for driving an odd number of conveyor belts 23, and a second drive shaft 52 located in the middle or end of the conveyor belts 23 for driving an even number of conveyor belts 23. The first drive shaft 51 is provided with several first transmission wheels 22 that are matched and connected one-to-one with the odd number of conveyor belts 23, and the second drive shaft 52 is provided with several first transmission wheels 22 that are matched and connected one-to-one with the even number of conveyor belts 23. The conveyor belt 23 is matched with the second transmission wheel 25; the first drive shaft 51 is connected to the first transmission gear 511, the second drive shaft 52 is connected to the second transmission gear 521, and the first transmission gear 511 and the second transmission gear 521 are connected by a transmission chain 54. The first transmission gear 511 and the first motor 53 on the frame 1 are connected by gears and a transmission chain to form a transmission; the diameter of the first transmission gear 511 is R1, the diameter of the second transmission gear 521 is R2, and R1=N*R2; the distance from the product cutting position of the conveyor belt 23 to the starting position of the conveyor belt 23 is H1 for odd-numbered sequences and H2 for even-numbered sequences, and N*H1=H2. N is greater than or equal to 1.5.

[0020] Specifically, two drive shafts, a first drive shaft 51 and a second drive shaft 52, are arranged in parallel at the middle and end of the conveyor belt 23. The first drive shaft 51 is connected to and drives the conveyor belts 23 in an odd-numbered sequence through multiple first transmission wheels 22 spaced apart on its shaft. In this embodiment, the number of conveyor belts 23 is set to five. The second drive shaft 52 is connected to and drives the conveyor belts 23 in an even-numbered sequence through multiple second transmission wheels 25 spaced apart on its shaft. To achieve linkage and differential speed between the two drive shafts, a first transmission gear 511 is fixedly connected to the end of the first drive shaft 51, and a second transmission gear 521 is fixedly connected to the end of the second drive shaft 52. The first transmission gear 511 and the second transmission gear 521 are meshed together by a transmission chain 54. The power source is a first motor 53 fixed on the frame 1. The output power of the first motor 53 is transmitted to the first transmission gear 511 through the gear and transmission chain system, thereby driving the entire differential drive system. The diameter R1 of the first transmission gear 511 and the diameter R2 of the second transmission gear 521 satisfy the relationship: R1 = N * R2, where N is the transmission ratio. Since the gear diameter is inversely proportional to the rotational speed, the rotational speeds of the first drive shaft 51 and the second drive shaft 52 are different, resulting in different linear speeds of the conveyor belt 23 for odd-numbered sequences and even-numbered sequences.

[0021] To achieve synchronous cutting, the distance between the product cutting position on the single-column conveyor belt 23 and the starting position of the conveyor belt is set to H1, and the corresponding cutting position on the double-column conveyor belt 23 is set to H2. Through precise design, the cutting positions satisfy the relationship: N*H1=H2. This design ensures that although the two sets of conveyor belts have different speeds, the time required for them to travel from the starting position to their respective cutting positions is the same, thus ensuring that all products arrive at the actual cutting station located on the same horizontal straight line at the same time, achieving the effect of simultaneous cutting.

[0022] The cutting mechanism 3 is located above the conveying mechanism 2 and is used to perform rounded corner cutting on the positioned products. It includes an upper blade beam 31 positioned above the conveying mechanism 2, several fixed seats 32 mounted on the upper blade beam 31, and a cam assembly 33 for driving the upper blade beam 31 to rise and fall. The upper blade beam 31 is horizontally mounted on the frame 1, and its two ends are connected to a first slide rail 35 vertically mounted on the frame 1 via a first slider 34, allowing the upper blade beam 31 to slide precisely up and down along the first slide rail 35. Multiple fixed seats 32 are bolted to the upper blade beam 31 at intervals facing the product cutting station, and the position of each fixed seat 32 corresponds to the upper two sides of a conveyor belt 23. A rounded corner blade 324 is mounted on each fixed seat 32. To achieve clamping during cutting, a downwardly extending clamping rod 321 is provided on the fixed seat 32. A spring 322 is sleeved on the outside of the clamping rod 321, and a clamping block 323 is connected to its lower end. On both sides of the running path of each conveyor belt 23, an upper top block 325 is fixedly installed. When the upper blade beam 31 moves downward, the clamping block 323 first contacts the product and presses it against the upper top block 325. The spring 322 provides cushioning and constant clamping force, and then the rounded blade 324 completes the cutting.

[0023] The cam assembly 33 drives the upper blade beam 31 to rise and fall. It includes two cams 331 connected and rotating synchronously via a camshaft 332 driven by a first motor 53. Each cam 331 has a first link 333 hinged to it, the other end of which is hinged to a connecting rod 334. A second link 335 is hinged to the connecting rod 334, and the end of the second link 335 is hinged to the upper blade beam 31 via a third link 336. This multi-link mechanism converts the rotational motion of the cams 331 into a smooth vertical reciprocating motion of the upper blade beam 31, providing sufficient cutting force and stroke. It should be noted that the first motor 53 has two output ends, used to drive the conveying mechanism 2 and the cutting mechanism 3 respectively.

[0024] The deflection mechanism 4 includes a first mounting beam 41 spanning the conveyor mechanism 2 and a fixing member 42 mounted on the first mounting beam 41. A first cylinder 43 is mounted on the fixing member 42. The first cylinder 43 extends and retracts in a vertical direction, and a front baffle 44 is provided at the end of the piston rod of the first cylinder 43. The deflection mechanism 4 also includes a second cylinder 45 located on both sides of the frame 1 and a side baffle 46 driven by the second cylinder 45 and capable of moving in opposite directions. A deflection rod 47 is provided longitudinally at the end of the piston rod of the second cylinder 45, and the side baffle 46 is mounted on the deflection rod 47. The side baffle 46 is located on both sides of the conveyor belt 23. The deflection mechanism 4 also includes a second mounting beam 48 located above the conveyor belt 23. A mounting block 49 is provided on the second mounting beam 48, and a blocking block 40 is hinged to the mounting block 49. The bottom of the blocking block 40 abuts against the surface of the conveyor belt 23.

[0025] The blocking mechanism 4 is used for precise positioning of the product before it is cut, including constraints in the longitudinal, transverse, and vertical directions. The longitudinal positioning is achieved by the front baffle 44, which includes a first mounting beam 41 spanning the conveyor mechanism 2. A vertically downward first cylinder 43 is mounted on the first mounting beam 41 via a fixing member 42. The front baffle 44 is mounted on the piston rod end of the first cylinder 43. When the product is conveyed to its approximate position, the piston rod of the first cylinder 43 extends, and the front baffle 44 descends above the conveyor belt 23, blocking the product's forward movement. At this point, the conveyor belt 23 stops, achieving longitudinal positioning. Both ends of the first mounting beam 41 are connected to a second slider 412 via mounting seats 411. The second slider 412 cooperates with a second slide rail 413 fixed to the side wall of the frame 1, allowing the entire front baffle mechanism to be adjusted in position along the conveying direction.

[0026] The lateral positioning, also known as the side baffles 46, involves second cylinders 45 mounted on both sides of the frame 1. A return rod 47 is longitudinally connected to the piston rod end of the second cylinder 45, and the side baffles 46 are mounted on the return rod 47. The second cylinders 45 on both sides can drive the side baffles 46 to move towards or away from each other, thereby centering and clamping the product in the width direction as it approaches the cutting station. The vertical pre-positioning, also known as the blocking block 40, involves a second mounting beam 48 above the conveyor belt 23, on which a mounting block 49 is mounted. A swingable blocking block 40 is hinged to the mounting block 49. During the positioning stage, because the blocking block 40 is tilted towards the product cutting station, one end of the blocking block 40 is hinged to the mounting block 49. Due to gravity, one end naturally droops and rests against the surface of the conveyor belt 23. When the product is conveyed, the product pushes the blocking block 40 aside, and its bottom gently rests against the product surface, preventing the product from rushing forward or jumping due to inertia, thus assisting in the final positioning.

[0027] The conveying mechanism 2 is provided with a tilting platform 7 on one side. The tilting platform 7 is provided with a third drive shaft 71 on the side close to the conveying mechanism 2. The inner wall of the frame 1 is provided with a third motor 72, which is connected to the third drive shaft 71. The tilting platform 7 is provided with support plates 73 on both sides. A third cylinder 74 is provided between the support plate 73 and the frame 1. The piston shaft of the third cylinder 74 is connected to the support plate 73.

[0028] A tilting platform 7 is provided on one side of the conveyor mechanism 2 for loading materials. The side of the tilting platform 7 closest to the conveyor mechanism 2 is hinged to the frame 1 via a third drive shaft 71. A third motor 72 mounted on the inner wall of the frame 1 drives the third drive shaft 71 to rotate via a transmission mechanism, thereby causing the tilting platform 7 to tilt. Support plates 73 are provided on both sides below the tilting platform 7, and a third cylinder 74 is hinged between the support plates 73 and the frame 1. During loading, the piston rod of the third cylinder 74 extends, lifting the tilting platform 7 to be flush with the conveyor belt 23 to receive the product; then the third motor 72 starts, transporting the product to the conveyor mechanism 2. During operation, the tilting platform 7 tilts upward to open and transport the books from the previous processing stage; when the work is finished, the tilting platform 7 tilts downward to retract, facilitating operator movement.

[0029] In this embodiment, a set of cutting mechanism 3 and a set of blocking mechanism 4 are provided above the conveyor belt 23 driven by the first drive shaft 51 and above the conveyor belt 23 driven by the second drive shaft 52, and each set of cutting mechanism 3 and blocking mechanism 4 is arranged at intervals.

[0030] The specific operation process of this embodiment is as follows: the product is fed into the conveying mechanism 2 through the flipping platform 7. The products will start to be conveyed from the same starting point. Since the conveying mechanism 2 has a speed difference, the faster products will be sent to the cutting mechanism 3 at the front, and the slower products will be sent to the cutting mechanism 3 at the back. However, the time to reach the cutting station is the same. When the product runs to the sensing area in front of the cutting station, the sensor triggers a signal, the blocking mechanism 4 immediately acts to perform precise positioning, and the conveying mechanism 2 will stop running. First, the first cylinder 43 drives the front baffle 44 to descend, blocking the product from moving forward. Then, the second cylinders 45 on both sides push the side baffles 46 to move towards each other, centering and clamping the product in the width direction. At the same time, the blocking block 40 installed on the second mounting beam 48 hangs down, gently pressing the rear of the product, and together with the front baffle 44, forms a front and rear fixation. Thus, the positioning of the product around its perimeter is completed, ensuring that the product will not shift during cutting. After the product is positioned, the cutting mechanism 3 will descend to cut. After the cutting is completed, the front and left and right blocks will be removed, and the conveying mechanism 2 will continue to operate. After the previous product leaves the cutting station, the next batch of products will be sent into the conveying mechanism 2 to achieve continuous transportation and cutting.

[0031] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A differential corner rounding cutting device, comprising a frame (1), wherein the frame (1) is provided with a conveying mechanism (2) for conveying products, a retaining mechanism (4) for positioning products before cutting, and a cutting mechanism (3) for cutting products, characterized in that, The conveying mechanism (2) includes several parallel conveyor belts (23), a driven shaft (24) located at the beginning or end of the conveyor belts (23), a first drive shaft (51) located in the middle or end of the conveyor belts (23) for driving the single-row conveyor belts (23), and a second drive shaft (52) located in the middle or end of the conveyor belts (23) for driving the double-row conveyor belts (23); the first drive shaft (51) is provided with several first transmission wheels (22) that are matched and connected one-to-one with the single-row conveyor belts (23), and the second drive shaft (52) is provided with several second transmission wheels (25) that are matched and connected one-to-one with the double-row conveyor belts (23); the first drive shaft (51) is connected to the first drive wheel (24) for driving the single-row conveyor belts (23). A transmission gear (511) is connected to a second transmission gear (521) on a second drive shaft (52). A transmission chain (54) is connected between the first transmission gear (511) and the second transmission gear (521). The first transmission gear (511) and the first motor (53) on the frame (1) are connected by gears and transmission chain to form a transmission. The diameter of the first transmission gear (511) is R1, and the diameter of the second transmission gear (521) is R2. R1=N*R2. The distance between the product positioning and cutting station of the conveyor belt (23) in the odd number sequence and the starting position of the conveyor belt (23) is H1. The distance between the product positioning and cutting station of the conveyor belt (23) in the even number sequence and the starting position of the conveyor belt (23) is H2. N*H1=H2.

2. The corner rounding device according to claim 1, characterized in that, The cutting mechanism (3) includes an upper blade beam (31) disposed above the conveying mechanism (2), several fixed seats (32) mounted on the upper blade beam (31), and a cam assembly (33) for driving the upper blade beam (31) to rise and fall. The upper blade beam (31) is provided with a first slider (34) at its end. The first slider (34) is connected to a first slide rail (35), and the upper blade beam (31) can slide up and down along the first slide rail (35). The fixed seats (32) are disposed on both sides above the conveyor belt (23), and each fixed seat (32) is equipped with a rounded blade (324).

3. The corner rounding device according to claim 2, characterized in that, The cam assembly (33) includes cams (331) disposed on both sides of the inner side of the frame (1) and a camshaft (332) connecting the two cams (331). A first rod (333) is provided on the cam (331). A connecting rod (334) is provided at the end of the first rod (333) away from the cam (331). A second rod (335) is provided on the connecting rod (334) near the first rod (333). A third rod (336) is provided at the end of the second rod (335) away from the connecting rod (334). The second rod (335) is hinged to the third rod (336). The end of the third rod (336) away from the second rod (335) is connected to the upper blade beam (31). A first motor (53) drives the cams (331) to realize the lifting and lowering of the upper blade beam (31).

4. The corner rounding device according to claim 3, characterized in that, The fixed seat (32) is provided with a downwardly extending clamping rod (321), and a spring (322) is sleeved on the outside of the clamping rod (321). A clamping block (323) is provided at the lower end of the clamping rod (321), and an upper top block (325) is provided below the clamping block (323) and is fixedly connected to the outside of each conveyor belt (23).

5. The corner rounding device according to claim 1, characterized in that, The blocking mechanism (4) includes a first mounting beam (41) that spans the conveying mechanism (2) and a fixing member (42) that is mounted on the first mounting beam (41). A first cylinder (43) is mounted on the fixing member (42). The first cylinder (43) extends and retracts in the vertical direction. A front baffle (44) is provided at the end of the piston rod of the first cylinder (43).

6. The corner rounding device according to claim 5, characterized in that, The deflection mechanism (4) further includes a second cylinder (45) disposed on both sides of the frame (1) and a side baffle (46) driven by the second cylinder (45) and capable of moving in opposite directions or in opposite directions. The piston rod end of the second cylinder (45) is provided with a deflection rod (47) in the longitudinal direction. The side baffle (46) is installed on the deflection rod (47). The side baffle (46) is disposed on both sides of the conveyor belt (23). The blocking mechanism (4) further includes a second mounting beam (48) disposed above the conveyor belt (23), the second mounting beam (48) is provided with a mounting block (49), the mounting block (49) is provided with a blocking block (40) hinged thereto, and the bottom of the blocking block (40) abuts against the surface of the conveyor belt (23).

7. The corner rounding device according to claim 6, characterized in that, The conveying mechanism (2) is provided with a flipping platform (7) on one side. The flipping platform (7) is provided with a third drive shaft (71) on the side close to the conveying mechanism (2). The inner wall of the frame (1) is provided with a third motor (72). The third motor (72) is connected to the third drive shaft (71). The flipping platform (7) is provided with support plates (73) on both sides. The support plate (73) and the frame (1) are provided with a third cylinder (74). The piston shaft of the third cylinder (74) is connected to the support plate (73).

8. The corner rounding device according to claim 7, characterized in that, The first mounting beam (41) has mounting seats (411) on both sides. The mounting seats (411) are provided with second sliders (412). The second sliders (412) are connected to second slide rails (413). The second slide rails (413) are fixedly connected to the side wall of the frame (1).

9. The corner rounding device according to claim 1, characterized in that, A set of cutting mechanism (3) and a blocking mechanism (4) are provided above the conveyor belt (23) driven by the first drive shaft (51) and above the conveyor belt (23) driven by the second drive shaft (52), and each set of cutting mechanism (3) and blocking mechanism (4) is arranged at intervals.

10. The corner rounding device according to claim 1, characterized in that, N is greater than or equal to 1.5.

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