Conveying device for production and processing of carton for food packaging

Abstract

The invention relates to the field of box material conveying, and discloses a conveying device for producing and processing a carton for food packaging, the conveying device comprises a second base, two symmetrically arranged supports are fixedly mounted on the second base, and a cross-shaped turnover frame is rotatably mounted between the two supports. The middle of the bottom face of the box body is supported by the feeding roller way, the two sides of the bottom face of the box body are exposed in the moving range of the cross-shaped turnover frame, at the moment, the cross-shaped turnover frame is started to rotate, the box body is stably borne and turned over, and therefore the turnover effect is achieved. After the cross-shaped turnover frame rotates, feeding and discharging are carried out at the same time, the whole process does not need to be stopped and reset, continuous operation of the whole production line cannot be affected by the efficiency problem of the turnover link, box bodies are prevented from being stacked at the turnover device, and the smoothness of the whole conveying system is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of box material conveying, and in particular to a conveying device for producing and processing food packaging cartons. Background Art

[0002] During the production and processing of cartons for food packaging, the appearance of the cartons needs to be inspected while they are being transported on the conveyor line to avoid damage or dents on the outer surface of the cartons. However, the contact between the bottom of the carton and the conveyor line cannot be observed.

[0003] In response to the above technical problems, the applicant has retrieved some existing technologies to achieve the purpose of turning over the cartons on the conveyor line. For example, the patent publication number is CN119551406A. Its main technical means is that a V-shaped turning frame is provided on the conveyor line frame. The box slides into the turning frame in an inclined state, and then the turning frame works to turn the box ninety degrees. Subsequently, the turning frame needs to be reset before the next box can enter. When the turning frame is turned over and reset, the blocking plate will rise to serve as a partition for the subsequent boxes to prevent the boxes from being stuck between the turning frame and the partition space. The applicant analyzed that the disadvantage of this technical solution is that this working mode makes it difficult to improve the turning efficiency, especially since the transportation of boxes on the conveyor line frame is continuous and uninterrupted, and when the boxes intercepted by the blocking plate are waiting to enter the turning frame, the subsequent cartons transported will accumulate at the turning frame. In serious cases, the subsequently transported boxes will collide with the boxes waiting to be turned over in front, causing damage to the boxes. Based on this, the present invention purposely provides a conveying device for the production and processing of food packaging cartons, which can continuously turn over the cartons transported on the conveyor line, improve the turning efficiency, and avoid the accumulation of cartons on the conveyor line. Summary of the Invention

[0004] The purpose of the present invention is to provide a conveying device for producing and processing food packaging cartons in order to solve the technical problems in the prior art.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A conveying device for producing and processing food packaging cartons, comprising: A second base, wherein two symmetrically arranged brackets are fixedly mounted on the second base, a cross-turning frame is rotatably mounted between the two brackets, the cross-turning frame is driven by an output source fixedly mounted on the bracket to rotate intermittently, and the cross-turning frame is provided with a first quadrant, a second quadrant, a third quadrant and a fourth quadrant in a clockwise direction, the first quadrant is provided with a conveyor line assembly, and the conveyor line assembly is connected to the second base, the second quadrant is provided with a third roller, and the third roller is provided on the second base, and both the conveyor line assembly and the third roller are used to convey the box; The lifting seat is driven by a driving source to lift and lower, and the driving source is fixedly installed at the bottom of the second base, and the lifting seat is located in the middle of the cross turning frame. At both ends of the lifting seat, a loading roller and a unloading roller are respectively provided. The width of the loading roller and the unloading roller are both smaller than the width of the box body, and the loading roller and the unloading roller are symmetrically arranged about the axis of the rotating shaft of the cross turning frame. When the driving source drives the lifting seat to rise, the conveyor line assembly conveys a box body to the loading roller of the first quadrant, and the unloading roller conveys the box body of the second quadrant to the third roller. At this time, the bottom surfaces of the box on the loading roller and the unloading roller are away from the cross turning frame. When the driving source drives the lifting seat to descend, the bottom surfaces of the box on the loading roller and the unloading roller are both in contact with the cross turning frame. At this time, the output source drives the cross turning frame to rotate ninety degrees, so that the box body in the first quadrant is turned to the second quadrant, and the bottom surface of the box in the first quadrant before turning is different from the bottom surface of the box in the second quadrant after turning.

[0006] As a further solution of the present invention: the conveyor line assembly includes a first base, a first roller and a second roller, the first base is arranged on one side of the second base, the first roller is arranged on the first base, the second roller is arranged on the second base, the second roller and the third roller are symmetrically arranged about the cross turning frame, the box body is transported to the loading roller body through the first roller and the second roller in turn, and a camera assembly is provided on the second roller, and the camera assembly is used to shoot the number of boxes on the second roller. The camera assembly is connected to the first roller, and the camera assembly is used to control the speed of the first roller in conveying the box body so that there is at most one box body on the second roller.

[0007] As a further solution of the present invention: two relatively moving splints are provided in the four quadrants of the cross turning frame, and the two splints are slidably installed on the cross turning frame. The two splints are driven to move by the driving assembly. When the driving source drives the lifting seat to descend, the driving assembly drives the two splints to approach each other to clamp the box on the loading roller. After the output source drives the cross turning frame to rotate ninety degrees, the driving assembly drives the two splints to move away from each other.

[0008] As a further solution of the present invention: the driving assembly includes an L-shaped plate, a round rod, a magnet block and an electromagnet assembly, the L-shaped plate is fixedly mounted on the cross flip frame, the round rod is slidably mounted in the L-shaped plate, one end of the round rod is fixedly connected to the splint, and the other end of the round rod is fixedly mounted with a magnet block, the electromagnet assembly is fixedly mounted on the bracket, the electromagnet assembly cooperates with the magnet block, and the magnetic force range of the electromagnet assembly covers the first quadrant and the second quadrant. When the electromagnet assembly and the magnet block magnetically repel each other, the magnet block moves away from the electromagnet assembly, and the two splints approach each other. When the electromagnet assembly and the magnet block magnetically attract each other, the magnet block approaches the electromagnet assembly, and the two splints move away from each other.

[0009] As a further solution of the present invention: the driving assembly also includes a ring and a spring, the ring is fixedly mounted on the outer surface of the round rod, and the ring is located between the magnet block and the L-shaped plate, the spring is sleeved on the round rod, and the ring is connected to the L-shaped plate through the spring, and the spring pre-tightening force makes the ring stay away from the L-shaped plate.

[0010] As a further solution of the present invention: two guide plates moving towards each other are arranged above the second roller. When the two guide plates approach each other, the guide plates push the box on the second roller to adjust its position. Power parts are fixedly installed on both sides of the second base, and the movable end of the power part is fixedly connected to the guide plate.

[0011] As a further solution of the present invention: a trigger switch is fixedly installed on the second base, the trigger switch is connected to the power part, and a fixed plate is fixedly installed on the lifting seat. When the driving source drives the lifting seat to rise, the fixed plate abuts against the trigger switch, and the trigger switch controls the power part to extend. At this time, the second roller conveys the box to the loading roller.

[0012] As a further solution of the present invention: the power member is connected to the electromagnet assembly. When the power member is extended, the electromagnet assembly is powered off. At this time, the distance between the two guide plates is smaller than the distance between the two clamping plates.

[0013] Beneficial effects of the present invention: 1. In the present invention, a cross turning frame is provided between the conveyor line assembly and the third roller, and the loading roller and unloading roller in the middle of the cross turning frame are shorter than the width of the box. When the box is conveyed to the first quadrant of the cross turning frame, the middle part of the bottom surface of the box is supported by the loading roller, and the two sides of the bottom surface are exposed to the movable range of the cross turning frame. At this time, the cross turning frame starts to rotate, stably receives the box and begins to turn it over, thereby achieving a turning effect. The cross turning frame has a "cross" symmetrical structure, so that after the rotation, the cross turning frame enters a state of simultaneous loading and unloading, without the need to pause and reset throughout the process, and the continuous operation of the entire production line will not be affected by the efficiency problem of the turning link, thereby avoiding the accumulation of boxes at the turning device and ensuring the smoothness of the entire conveying system. 2. In the present invention, a camera assembly is provided on the second roller conveyor to capture the number of boxes on the second roller conveyor. The camera assembly is also used to control the speed of the boxes conveyed by the first roller conveyor so that there is at most one box on the second roller conveyor. This prevents boxes from piling up on the second roller conveyor. By controlling the conveying speed of the first roller conveyor, boxes are ensured to enter the second roller conveyor in an orderly manner to wait for loading, thus preventing boxes from colliding with boxes waiting for loading on the second roller conveyor. 3. In the present invention, by arranging a clamping plate on the cross-turning frame, the box can be clamped and fixed before the cross-turning frame drives the box to turn over. The clamping and fixing of the clamping plate can firmly constrain the box in a predetermined position, ensure the accuracy of the turning trajectory, and enable the box to complete the turning action at the expected angle and direction, avoiding the problem of reduced turning accuracy due to shaking and displacement caused by changes in the center of gravity and inertia when the box is in a free state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the contact between the fixed plate and the trigger switch in the present invention; Figure 3 It is a structural schematic diagram of the loading roller and the unloading roller in the present invention; Figure 4 It is a structural schematic diagram of the cross turning frame in the present invention; Figure 5 This is a schematic structural diagram of the lifting seat rising in the present invention; Figure 6 This is a schematic structural diagram of the present invention in which the loading roller is higher than the first quadrant of the cross turning frame; Figure 7 This is a structural diagram of the present invention in which the loading roller is flush with the first quadrant of the cross turning frame; Figure 8 It is a structural diagram of the electromagnetic assembly in the present invention that magnetically repels the magnet block; Figure 9 It is a structural diagram of the guide plate and the clamping plate in the present invention; Figure 10 It is a schematic diagram of the box structure in the present invention; Figure 11 It is a structural schematic diagram of the cross turning frame turning box in the present invention.

[0016] In the figure: 1. First base; 2. Second base; 3. First roller; 4. Second roller; 5. Third roller; 6. Loading roller; 7. Unloading roller; 8. Lifting seat; 9. Cross turning frame; 10. Bracket; 11. Clamp; 12. L-shaped plate; 13. Round rod; 14. Magnet block; 15. Ring; 16. Spring; 17. Electromagnet assembly; 18. Power part; 19. Guide plate; 20. Trigger switch; 21. Fixed plate; 22. Box. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0018] See also Figures 1-11 As shown, the present invention is a conveying device for producing and processing food packaging cartons, comprising: A second base 2, on which two symmetrically arranged brackets 10 are fixedly mounted, a cross flip frame 9 is rotatably mounted between the two brackets 10, the cross flip frame 9 is driven by an output source fixedly mounted on the bracket 10 to rotate intermittently, and the cross flip frame 9 is provided with a first quadrant, a second quadrant, a third quadrant and a fourth quadrant in a clockwise direction, the first quadrant is provided with a conveyor line assembly, and the conveyor line assembly is connected to the second base 2, the second quadrant is provided with a third roller 5, and the third roller 5 is provided on the second base 2, and both the conveyor line assembly and the third roller 5 are used to transport the box 22; The lifting seat 8 is driven by a driving source to lift and lower. The driving source is fixedly installed at the bottom of the second base 2. The lifting seat 8 is located in the middle of the cross turning frame 9. The two ends of the lifting seat 8 are respectively provided with a loading roller 6 and a unloading roller 7. The width of the loading roller 6 and the unloading roller 7 are both smaller than the width of the box 22. The loading roller 6 and the unloading roller 7 are symmetrically arranged about the axis of the rotating shaft of the cross turning frame 9. When the driving source drives the lifting seat 8 to rise, the conveyor line assembly transports a box 22 to the loading roller in the first quadrant. 6, and at the same time, the unloading roller 7 transports the box body 22 in the second quadrant to the third roller 5. At this time, the bottom surfaces of the box body 22 on the loading roller 6 and the unloading roller 7 are away from the cross turning frame 9. When the driving source drives the lifting seat 8 to descend, the bottom surfaces of the box body 22 on the loading roller 6 and the unloading roller 7 are both in contact with the cross turning frame 9. At this time, the output source drives the cross turning frame 9 to rotate ninety degrees, so that the box body 22 in the first quadrant is turned over to the second quadrant. The bottom surface of the box body 22 in the first quadrant before turning over is different from the bottom surface of the box body 22 in the second quadrant after turning over.

[0019] Specifically, the conveyor line assembly includes a first base 1, a first roller 3 and a second roller 4. The first base 1 is arranged on one side of the second base 2, the first roller 3 is arranged on the first base 1, and the second roller 4 is arranged on the second base 2. The second roller 4 and the third roller 5 are symmetrically arranged about the cross flip frame 9. The box 22 is transported to the loading roller 6 through the first roller 3 and the second roller 4 in turn. The second roller 4 is provided with a camera assembly, which is used to shoot the number of boxes 22 on the second roller 4. The camera assembly is connected to the first roller 3. The camera assembly is used to control the speed of the first roller 3 conveying the box 22 so that there is at most one box 22 on the second roller 4.

[0020] In one case of this embodiment, the "roller conveyor" is a conveyor line composed of multiple conveyor rollers, and the conveyor rollers used in the first roller conveyor 3, the second roller conveyor 4 and the third roller conveyor 5 are all conveyor rollers with a width greater than the width of the box 22. The four quadrants of the cross flip frame 9 are divided from the quadrant distribution diagram in the plan view. However, the distribution of the quadrants in this application is adjusted for easy understanding. The driving source can be an electric cylinder, an electric telescopic rod and other components, and other mechanisms that can achieve lifting and lowering movements can also be selected. The output source can be a servo motor, a servo motor and other components, and other mechanisms that can achieve rotational movement can also be selected. This embodiment is not specifically limited here. It should be noted that the camera assembly described in the present invention includes industrial cameras, lenses, light sources, image processing systems, storage modules and communication interface modules. The above components and the conveyor rollers that constitute each "roller conveyor" are all prior art. The present invention does not improve them. Therefore, there is no need to disclose their specific mechanical structure and circuit structure, which does not affect the integrity of the present invention.

[0021] The working principle of the present invention is as follows: Figure 1 As shown in the figure, the cross turning frame 9 is in the initial state. At this time, the first quadrant is connected to the second roller 4, and the second quadrant is connected to the third roller 5. The first roller 3 transports the box 22 to the second roller 4. At this time, the driving source drives the lifting seat 8 to rise. Figure 5 As shown in the example, the loading roller 6 and the second roller 4 are at the same height, and the loading roller 6 is in the first quadrant of the cross turning frame 9 as shown in FIG. Figure 6 As shown, at this time, the second roller 4 transports the box 22 to the loading roller 6. During this process, the bottom surface of the box 22 does not contact the cross turning frame 9, avoiding the problem of friction between the two hindering the box 22 from moving to the first quadrant, ensuring that the loading roller 6 can smoothly undertake the transportation of the box 22. When the box 22 moves to the first quadrant, as shown in FIG. Figure 5 As shown, the right side of the box 22 will abut against the cross turning frame 9, and then the driving source drives the lifting seat 8 to descend. At this time, the state of the loading roller 6 and the cross turning frame 9 is as follows: Figure 7 Taking the example shown, the bottom surface of the box 22 on the loading roller 6 will abut against the cross turning frame 9, and then the output source drives the cross turning frame 9 to rotate ninety degrees, turning the box 22 in the first quadrant into the second quadrant. The bottom surface of the box 22 in the first quadrant before turning is different from the bottom surface of the box 22 in the second quadrant after turning. Specifically, the bottom surface of the box 22 in the first quadrant becomes the side surface of the box 22 in the second quadrant, so that it can be observed during the subsequent roller conveying; Moreover, after the cross turning frame 9 rotates 90 degrees, the original fourth quadrant of the cross turning frame 9 becomes the first quadrant of the cross turning frame 9, and at this time the driving source drives the lifting seat 8 to rise, as shown in FIG. Figure 5 As shown in the example, at this time, a box 22 can be loaded into the first quadrant, and at the same time, the unloading roller 7 can convey the box 22 in the second quadrant to the third roller 5, and the bottom surface of the box 22 on the unloading roller 7 is also away from the cross turning frame 9, avoiding friction between the box 22 and the cross turning frame 9 during unloading, thereby ensuring the smoothness of unloading. At this time, the cross turning frame 9 enters a state of simultaneous loading and unloading. Each rotation of ninety degrees can drive a box 22 to turn over. After the rotation is completed, the turned box 22 can be loaded, and loading can be performed without resetting. In this way, the boxes 22 on the conveyor line body can be continuously turned over without stopping the conveyor line body and waiting for the cross turning frame 9 to turn over and reset. The second roller conveyor 4 is provided with a camera assembly, which is used to capture the number of boxes 22 on the second roller conveyor 4, and the camera assembly is used to control the speed at which the first roller conveyor 3 conveys the boxes 22, so that there is at most one box 22 on the second roller conveyor 4. This can avoid the boxes 22 from piling up on the second roller conveyor 4, and by controlling the conveying speed of the first roller conveyor 3, ensure that the boxes 22 enter the second roller conveyor 4 in an orderly manner to wait for loading, thereby avoiding the problem of the boxes 22 colliding with the boxes 22 waiting for loading on the second roller conveyor 4.

[0022] like Figures 1-8 As shown, as a preferred embodiment of the present invention, two relatively moving splints 11 are provided in the four quadrants of the cross turning frame 9, and the two splints 11 are slidably installed on the cross turning frame 9. The two splints 11 are driven to move by the driving assembly. When the driving source drives the lifting seat 8 to descend, the driving assembly drives the two splints 11 to approach each other to clamp the box 22 on the loading roller 6. After the output source drives the cross turning frame 9 to rotate ninety degrees, the driving assembly drives the two splints 11 to move away from each other.

[0023] Specifically, the driving assembly includes an L-shaped plate 12, a round rod 13, a magnet block 14 and an electromagnet assembly 17. The L-shaped plate 12 is fixedly mounted on the cross flip frame 9, and the round rod 13 is slidably mounted in the L-shaped plate 12. One end of the round rod 13 is fixedly connected to the splint 11, and the other end of the round rod 13 is fixedly mounted with a magnet block 14. The electromagnet assembly 17 is fixedly mounted on the bracket 10. The electromagnet assembly 17 cooperates with the magnet block 14. The magnetic force range of the electromagnet assembly 17 covers the first quadrant and the second quadrant. When the electromagnet assembly 17 and the magnet block 14 magnetically repel each other, the magnet block 14 moves away from the electromagnet assembly 17. At this time, the two splints 11 approach each other. When the electromagnet assembly 17 and the magnet block 14 magnetically attract each other, the magnet block 14 approaches the electromagnet assembly 17. At this time, the two splints 11 move away from each other.

[0024] Specifically, the driving assembly also includes a ring 15 and a spring 16. The ring 15 is fixedly mounted on the outer surface of the round rod 13, and the ring 15 is located between the magnet block 14 and the L-shaped plate 12. The spring 16 is sleeved on the round rod 13, and the ring 15 is connected to the L-shaped plate 12 through the spring 16. The pre-tightening force of the spring 16 keeps the ring 15 away from the L-shaped plate 12.

[0025] In actual application of this embodiment, after the driving source drives the lifting seat 8 to descend, the two electromagnet assemblies 17 are controlled to be turned on, and the electromagnet assembly 17 and the magnet block 14 are magnetically repelled from each other. At this time, the magnet block 14 is away from the electromagnet assembly 17, thereby pushing the round rod 13 to slide on the L-shaped plate 12, so that the two clamping plates 11 are close to each other, thereby clamping the box body 22 in the first quadrant, and the magnetic range of the electromagnet assembly 17 covers the first quadrant and the second quadrant, which means that when the output source drives the cross flip frame 9 to rotate ninety degrees, the two The clamping plates 11 are always in a state of clamping and fixing the box body 22, so as to prevent the box body 22 from being displaced on the cross turning frame 9 due to centrifugal force and inertia during the turning process of the box body 22. After the cross turning frame 9 rotates 90 degrees, the electromagnet assembly 17 and the magnet block 14 repel each other magnetically, so that the two clamping plates 11 move away from each other, thereby releasing the restriction on the box body 22 and unloading the box body 22, and conveying the new box body 22 to the first quadrant, because at this time the clamping plates 11 in the first quadrant are also in a state of moving away from each other; A ring 15 and a spring 16 are provided on the round rod 13. When the electromagnet assembly 17 and the magnet block 14 magnetically repel each other, the round rod 13 moves so that the ring 15 compresses the spring 16, thereby clamping and fixing the box body 22. After the cross flip frame 9 rotates ninety degrees, the electromagnet assembly 17 is directly powered off. The pre-tightening force of the round rod 13 makes the ring 15 move away from the L-shaped plate 12. At this time, the two clamping plates 11 will move away from each other, thereby achieving the purpose of removing the restriction. In this way, the setting of the electromagnet assembly 17 can be simplified. It only needs to be powered on and off, and it is ensured that the electromagnet assembly 17 and the magnet block 14 magnetically repel each other when powered on.

[0026] like Figures 1-9 As shown, as a preferred embodiment of the present invention, two guide plates 19 that move toward each other are provided above the second roller 4. When the two guide plates 19 approach each other, the guide plates 19 push the box 22 on the second roller 4 to adjust its position. Power parts 18 are fixedly installed on both sides of the second base 2, and the movable end of the power part 18 is fixedly connected to the guide plate 19.

[0027] Specifically, a trigger switch 20 is fixedly installed on the second base 2, and the trigger switch 20 is connected to the power part 18. A fixed plate 21 is fixedly installed on the lifting seat 8. When the driving source drives the lifting seat 8 to rise, the fixed plate 21 abuts against the trigger switch 20, and the trigger switch 20 controls the power part 18 to extend. At this time, the second roller 4 transports the box 22 to the loading roller 6.

[0028] Specifically, the power member 18 is connected to the electromagnet assembly 17 . When the power member 18 is extended, the electromagnet assembly 17 is powered off. At this time, the distance between the two guide plates 19 is smaller than the distance between the two clamping plates 11 .

[0029] In actual application of this embodiment, considering that the box body 22 is easily misaligned when being transported over a long distance on the first roller 3 and the second roller 4, and the width of the loading roller 6 itself is shorter than the width of the box body 22, a power piece 18 and a guide plate 19 are provided. When the driving source drives the lifting seat 8 to rise, the loading roller 6 is aligned with the second roller 4, and is ready to start loading the box body 22. The lifting seat 8 rises and drives the fixed plate 21 to rise and abut against the trigger switch 20. At this time, the trigger switch 20 controls the power piece 18 to extend. At this time, Figure 2 In the example shown, the extension of the two power members 18 brings the two guide plates 19 closer together, thereby pushing the box 22 on the second roller conveyor 4 to the middle area, ensuring that the box 22 can be aligned with the loading roller conveyor 6, and avoiding the problem that the box 22 is located in the upper edge area of ​​the second roller conveyor 4, resulting in the box not being transported by the second roller conveyor 4 to the loading roller conveyor 6; When the power member 18 is extended, the electromagnet assembly 17 is de-energized, which means that the two clamps 11 are fully opened under the preload force of the spring 16, and the distance between the two guide plates 19 is smaller than the distance between the two clamps 11, as shown in FIG. Figure 9 As shown in the example, the box body 22 will move in the channel formed by the two guide plates 19 at this time, and thus move to the loading roller 6 between the two clamping plates 11, completely avoiding the situation where the edge of the box body 22 is blocked by the clamping plates 11, ensuring the smooth progress of the loading process.

[0030] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A conveying device for producing and processing food packaging cartons, characterized in that: include: A second base (2), wherein two symmetrically arranged brackets (10) are fixedly mounted on the second base (2), a cross-turning frame (9) is rotatably mounted between the two brackets (10), the cross-turning frame (9) is driven by an output source fixedly mounted on the bracket (10) to intermittently rotate, and a first quadrant, a second quadrant, a third quadrant and a fourth quadrant are sequentially arranged on the cross-turning frame (9) in a clockwise direction, the first quadrant is provided with a conveying line assembly, the conveying line assembly is connected to the second base (2), the second quadrant is provided with a third roller (5), the third roller (5) is arranged on the second base (2), and the conveying line assembly and the third roller (5) are both used for conveying the box (22); A lifting seat (8) is driven by a driving source to lift and lower. The driving source is fixedly installed at the bottom of the second base (2). The lifting seat (8) is located in the middle of the cross-turning frame (9). A loading roller (6) and a unloading roller (7) are respectively provided at both ends of the lifting seat (8). The widths of the loading roller (6) and the unloading roller (7) are both smaller than the width of the box (22). The loading roller (6) and the unloading roller (7) are symmetrically arranged about the axis of the rotating shaft of the cross-turning frame (9). When the driving source drives the lifting seat (8) to rise, the conveying line assembly conveys a box (22) to the loading roller ( 6), and at the same time, the unloading roller (7) transports the box (22) in the second quadrant to the third roller (5). At this time, the bottom surfaces of the box (22) on the loading roller (6) and the unloading roller (7) are away from the cross-turning frame (9). When the driving source drives the lifting seat (8) to descend, the bottom surfaces of the box (22) on the loading roller (6) and the unloading roller (7) are in contact with the cross-turning frame (9). At this time, the output source drives the cross-turning frame (9) to rotate ninety degrees, so that the box (22) in the first quadrant is turned over to the second quadrant. The bottom surface of the box (22) in the first quadrant before turning over is different from the bottom surface of the box (22) in the second quadrant after turning over.

2. A conveying device for producing and processing food packaging cartons according to claim 1, characterized in that: The conveyor line assembly includes a first base (1), a first roller (3) and a second roller (4), wherein the first base (1) is arranged on one side of the second base (2), the first roller (3) is arranged on the first base (1), the second roller (4) is arranged on the second base (2), the second roller (4) and the third roller (5) are symmetrically arranged about the cross flip frame (9), the box (22) is sequentially conveyed to the loading roller (6) through the first roller (3) and the second roller (4), and a camera assembly is provided on the second roller (4), wherein the camera assembly is used to photograph the number of boxes (22) on the second roller (4), the camera assembly is connected to the first roller (3), and the camera assembly is used to control the speed of the first roller (3) conveying the box (22) so that there is at most one box (22) on the second roller (4).

3. A conveying device for producing and processing food packaging cartons according to claim 2, characterized in that: Two relatively movable clamps (11) are provided in each of the four quadrants of the cross-turning frame (9). The two clamps (11) are slidably mounted on the cross-turning frame (9). The two clamps (11) are driven to move by a driving assembly. When the driving source drives the lifting seat (8) to descend, the driving assembly drives the two clamps (11) to approach each other to clamp the upper box (22) of the loading roller (6). After the output source drives the cross-turning frame (9) to rotate ninety degrees, the driving assembly drives the two clamps (11) to move away from each other.

4. A conveying device for producing and processing food packaging cartons according to claim 3, characterized in that: The driving assembly comprises an L-shaped plate (12), a round rod (13), a magnet block (14) and an electromagnet assembly (17), wherein the L-shaped plate (12) is fixedly mounted on the cross flip frame (9), the round rod (13) is slidably mounted in the L-shaped plate (12), one end of the round rod (13) is fixedly connected to the clamping plate (11), and the other end of the round rod (13) is fixedly mounted with the magnet block (14), the electromagnet assembly (17) is fixedly mounted on the bracket (10), and the electromagnet The assembly (17) cooperates with the magnet block (14), and the magnetic force range of the electromagnet assembly (17) covers the first quadrant and the second quadrant. When the electromagnet assembly (17) and the magnet block (14) magnetically repel each other, the magnet block (14) moves away from the electromagnet assembly (17), and the two clamps (11) approach each other. When the electromagnet assembly (17) and the magnet block (14) magnetically attract each other, the magnet block (14) moves closer to the electromagnet assembly (17), and the two clamps (11) move away from each other.

5. A conveying device for producing and processing food packaging cartons according to claim 4, characterized in that: The driving assembly further comprises a ring (15) and a spring (16), wherein the ring (15) is fixedly mounted on the outer surface of the round rod (13), and the ring (15) is located between the magnet block (14) and the L-shaped plate (12), and the spring (16) is sleeved on the round rod (13), and the ring (15) is connected to the L-shaped plate (12) via the spring (16), and the pre-tightening force of the spring (16) causes the ring (15) to be away from the L-shaped plate (12).

6. A conveying device for producing and processing food packaging cartons according to claim 4, characterized in that: Two guide plates (19) that move toward each other are provided above the second roller conveyor (4). When the two guide plates (19) approach each other, the guide plates (19) push the upper box (22) of the second roller conveyor (4) to adjust its position. Power members (18) are fixedly installed on both sides of the second base (2), and the movable ends of the power members (18) are fixedly connected to the guide plates (19).

7. A conveying device for producing and processing food packaging cartons according to claim 6, characterized in that: A trigger switch (20) is fixedly mounted on the second base (2), and the trigger switch (20) is connected to the power member (18). A fixed plate (21) is fixedly mounted on the lifting seat (8). When the driving source drives the lifting seat (8) to rise, the fixed plate (21) abuts against the trigger switch (20), and the trigger switch (20) controls the power member (18) to extend. At this time, the second roller (4) transports the box (22) to the loading roller (6).

8. A conveying device for producing and processing food packaging cartons according to claim 7, characterized in that: The power member (18) is connected to the electromagnet assembly (17). When the power member (18) is extended, the electromagnet assembly (17) is powered off. At this time, the distance between the two guide plates (19) is smaller than the distance between the two clamping plates (11).

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