Paperboard leveling structure for packaging box production

Abstract

The utility model discloses a paperboard leveling structure for packaging box production, and relates to the technical field of packaging box production, the paperboard leveling structure comprises a support frame and symmetrically arranged conveying frames, the inner side of the support frame is slidably provided with a support plate, and a conveying belt is jointly and movably connected between the two conveying frames. A transmission assembly used for movement of the conveying belt is jointly arranged between the two conveying frames, paperboards are placed on the conveying belt, the two conveying frames are jointly and fixedly connected with the supporting frame, vertical flattening rollers are symmetrically and fixedly connected to the side, close to the conveying belt, of the supporting frame, and a flattening assembly used for the paperboards is arranged on the supporting plate. According to the flattening device, the transmission assembly and the flattening assembly are used in cooperation, the vertical flattening rollers and the transverse flattening rollers which are symmetrically arranged are adopted in the design of the flattening mechanism, through the design, manual participation is reduced, meanwhile, the flattening rollers perpendicular to each other can apply pressure to materials in different directions, and wrinkles on the surfaces of the materials can be eliminated more comprehensively.

Description

Technical Field

[0001] This utility model relates to the field of packaging box production technology, and in particular to a cardboard leveling structure for packaging box production. Background Technology

[0002] The purpose of cardboard leveling in packaging box production is to ensure the flatness and stability of the cardboard during processing. This is crucial for improving production efficiency and ensuring product quality. Leveled cardboard can smoothly pass through processes such as printing, die-cutting, and slotting, reducing machine failures and downtime caused by unevenness, thereby improving overall production efficiency. At the same time, flat cardboard ensures the dimensional accuracy and structural strength of the packaging boxes, meeting customer quality requirements.

[0003] A search revealed a Chinese utility model patent with patent number CN215970327U, which discloses a cardboard leveling device for paper packaging box production. Compared with the prior art, this utility model patent with Chinese patent number CN215970327U utilizes three pressing rollers to repeatedly crush the cardboard during the pressing process, ensuring its flattening quality. At the same time, the inclined plate allows the flattened board to slide down automatically, and the angle of the inclined plate can be adjusted according to the specific board material.

[0004] However, in actual use, the three pressing rollers are arranged in the same transverse direction. When wrinkles appear on the cardboard of the packaging box that are perpendicular to the direction of the pressing rollers, the pressing rollers may not be able to effectively eliminate these wrinkles. This is because the arrangement direction of the pressing rollers limits their ability to correct non-transverse wrinkles, resulting in wrinkles in certain directions not being able to be fully smoothed. This may affect the overall appearance and quality of the packaging box, and may even lead to problems in subsequent processing, such as printing misalignment and inaccurate die-cutting. Therefore, a cardboard smoothing structure for packaging box production is proposed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing flattening rollers with a single-direction arrangement, which have weak flattening capabilities, and to propose a cardboard flattening structure for packaging box production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cardboard leveling structure for packaging box production includes a support frame and symmetrically arranged conveyor frames. A support plate is slidably arranged on the inner side of the support frame. A conveyor belt is movably connected between the two conveyor frames. A transmission component for the movement of the conveyor belt is arranged between the two conveyor frames. Cardboard is placed on the conveyor belt. The two conveyor frames are fixedly connected to the support frame. A leveling component for flattening the cardboard is arranged on the support plate.

[0008] The above technical solution further includes:

[0009] A main drive roller and a driven roller are rotatably connected between the two conveyor frames. The main drive roller and the driven roller are sleeved and connected to the conveyor belt. The main drive roller and the driven roller are used to drive the conveyor belt to move in a circular motion and drive the cardboard to move synchronously.

[0010] A first servo motor is fixedly connected between the two conveying frames. The transmission assembly includes a driving bevel gear fixedly connected to the output end of the first servo motor. A drive shaft is rotatably connected between the two conveying frames. A driven bevel gear is fixedly connected to the outer side of the drive shaft. The driving bevel gear and the driven bevel gear mesh with each other. A driving gear is fixedly connected to one end of the drive shaft. A driven gear is fixedly connected to the end of the main drive roller near the driving gear. A gear belt is sleeved and connected between the driving gear and the driven gear. The rotation of the first servo motor drives the driving bevel gear to rotate, which in turn drives the driven bevel gear to rotate. The driven bevel gear drives the drive shaft to rotate, which in turn drives the driving gear to rotate. The rotation of the driving gear drives the gear belt to rotate in a circular motion, which in turn drives the driven gear to rotate. The rotation of the driven gear drives the main drive roller to rotate synchronously.

[0011] The support plate is symmetrically fixedly connected to guide slides on the side away from the vertical flattening roller, and the support frame is fixedly connected to a hydraulic cylinder on the side close to the support plate. The telescopic end of the hydraulic cylinder is fixedly connected to the support plate. The vertical flattening roller is used to eliminate vertical wrinkles and unevenness on the cardboard, and the hydraulic cylinder is used to apply pressure to the cardboard by acting on the vertical flattening roller.

[0012] A motor frame is fixedly connected to the outer side of the support plate, and a second servo motor is fixedly connected to the inner side of the motor frame. The second servo motor is used to drive the lead screw.

[0013] The leveling assembly includes a chute fixedly connected to the bottom of a support plate, a slide table symmetrically slidably arranged on the inner center of the chute, and multiple transverse flattening rollers rotatably connected to the inner side of the slide table. Vertical flattening rollers are symmetrically fixedly connected to the side of the support frame near the conveyor belt. The transverse flattening rollers and the vertical flattening rollers are perpendicular to each other. The chute is used to guide the movement of the slide table, and the transverse flattening rollers are used to eliminate transverse wrinkles and unevenness on the cardboard.

[0014] The slide table is threadedly connected to the lead screw, the lead screw is rotatably connected to the chute, and the lead screw is fixedly connected to the output end of the second servo motor. The second servo motor drives the lead screw to move the chute along the guide of the slide table, and the movement of the slide table drives the transverse pressing roller to flatten the cardboard.

[0015] Both of the lead screws are fixedly connected to a reversing gear at the end that extends to the outside of the chute and is away from the second servo motor. The two reversing gears mesh with each other and are used to drive the two lead screws to rotate in opposite directions. The two lead screws rotating in opposite directions drive the transverse flattening roller to move back and forth.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, through the coordinated use of the transmission component and the leveling component, the first servo motor drives the conveyor belt to move the cardboard, while the leveling mechanism levels the cardboard. The leveling mechanism is designed with symmetrically arranged vertical and horizontal flattening rollers. The vertical and horizontal flattening rollers are arranged perpendicularly to each other. This design reduces human intervention, and the perpendicular flattening rollers can apply pressure to the material from different directions, which helps to eliminate wrinkles on the material surface more comprehensively.

[0018] 2. In this utility model, the mutually perpendicular flattening rollers can make the entire flattening process more efficient, reduce production delays and rework caused by wrinkles, and this arrangement also helps to improve the automation level of the production line and reduce the frequency and difficulty of manual intervention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first integral structure of a cardboard leveling structure for packaging box production proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the transmission component structure in this utility model;

[0021] Figure 3 This is a top view of the leveling component in this utility model;

[0022] Figure 4 This is a bottom view of the leveling component in this utility model;

[0023] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0024] In the diagram: 1. Conveyor belt; 2. Support frame; 3. Cardboard; 4. First servo motor; 5. Conveying frame; 6. Driven roller; 7. Driving bevel gear; 8. Drive shaft; 9. Driven bevel gear; 10. Driving gear; 11. Gear belt; 12. Driven gear; 13. Main drive roller; 14. Guide slide column; 15. Hydraulic cylinder; 16. Support plate; 17. Motor frame; 18. Vertical flattening roller; 19. Reversing gear; 20. Second servo motor; 21. Lead screw; 22. Chute; 23. Slide table; 24. Transverse flattening roller. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figures 1-5 As shown, the present invention proposes a cardboard leveling structure for packaging box production, including a support frame 2 and symmetrically arranged conveyor frames 5. A support plate 16 is slidably arranged on the inner side of the support frame 2. A conveyor belt 1 is movably connected between the two conveyor frames 5. A transmission component for the movement of the conveyor belt 1 is arranged between the two conveyor frames 5. Cardboard 3 is placed on the conveyor belt 1. The two conveyor frames 5 are fixedly connected to the support frame 2. Vertical flattening rollers 18 are symmetrically fixedly connected to the side of the support frame 2 near the conveyor belt 1. A leveling component for flattening the cardboard 3 is arranged on the support plate 16.

[0028] A first servo motor 4 is fixedly connected between two conveying frames 5. The transmission assembly includes an active bevel gear 7 fixedly connected to the output end of the first servo motor 4. A transmission shaft 8 is rotatably connected between the two conveying frames 5. A driven bevel gear 9 is fixedly connected to the outer side of the transmission shaft 8. The active bevel gear 7 and the driven bevel gear 9 mesh with each other. When the first servo motor 4 is started, the output end of the first servo motor 4 rotates, driving the active bevel gear 7 to rotate and causing the driven bevel gear 9 to rotate. The driven bevel gear 9 rotates, driving the transmission shaft 8 to rotate and causing the active gear 10 mounted on the transmission shaft 8 to rotate. A driven gear 12 is fixedly connected to one end of the main transmission roller 13 near the active gear 10.

[0029] A gear belt 11 is sleeved and connected between the driving gear 10 and the driven gear 12. The rotation of the driving gear 10 drives the gear belt 11 to rotate, which in turn drives the driven gear 12 to rotate.

[0030] The two conveyor frames 5 are rotatably connected by a main drive roller 13 and a driven drive roller 6. The main drive roller 13 and the driven drive roller 6 are sleeved and connected to the conveyor belt 1. The driven gear 12 rotates to drive the main drive roller 13 to rotate and drive the conveyor belt 1 to move. While the conveyor belt 1 is moving, it also drives the cardboard 3 to move.

[0031] A guide slide column 14 is symmetrically fixedly connected to the side of the support plate 16 away from the vertical flattening roller 18. A hydraulic cylinder 15 is fixedly connected to the side of the support frame 2 close to the support plate 16. The telescopic end of the hydraulic cylinder 15 is fixedly connected to the support plate 16. The vertical flattening roller 18 is used to eliminate vertical wrinkles and unevenness on the cardboard 3. The hydraulic cylinder 15 is used to apply pressure to the cardboard 3 by acting on the vertical flattening roller 18 and the transverse flattening roller 24.

[0032] Then, based on the thickness of the cardboard 3, the hydraulic cylinder 15 is activated. The telescopic end of the hydraulic cylinder 15 moves down, causing the support plate 16 to move down under the guidance of the two symmetrically arranged guide slides 14 until the vertical pressing roller 18 and the horizontal pressing roller 24 are in contact with the cardboard, and then the hydraulic cylinder 15 is closed.

[0033] Example 2

[0034] like Figures 1-5 As shown, based on Embodiment 1, a motor frame 17 is fixedly connected to the outer side of the support plate 16, and a second servo motor 20 is fixedly connected to the inner side of the motor frame 17. The second servo motor 20 is used to drive the lead screw 21.

[0035] The leveling assembly includes a chute 22 fixedly connected to the bottom of the support plate 16. A slide table 23 is symmetrically slidably arranged on the inner side of the chute 22. The chute 22 is used to guide the movement of the slide table 23. Multiple transverse flattening rollers 24 are rotatably connected to the inner side of the slide table 23. A vertical flattening roller 18 is symmetrically fixedly connected to the side of the support frame 2 near the conveyor belt 1. The transverse flattening rollers 24 and the vertical flattening rollers 18 are perpendicular to each other. The vertical flattening rollers 18 and the transverse flattening rollers 24 are used to eliminate vertical and transverse wrinkles and unevenness on the cardboard 3, respectively.

[0036] The slide table 23 is threadedly connected to the lead screw 21. The output end of the second servo motor 20 rotates, which drives the lead screw 21 to rotate. The lead screw 21 is rotatably connected to the chute 22. The rotation of the lead screw 21 drives the slide table 23 to move under the guidance of the chute 22. The lead screw 21 is fixedly connected to the output end of the second servo motor 20.

[0037] Two lead screws 21 extend to the outside of the chute 22 and are fixedly connected to a reversing gear 19 at the end away from the second servo motor 20. The two reversing gears 19 mesh with each other. When the lead screw 21 rotates, it drives the reversing gear 19 to rotate. The two reversing gears 19 mesh with each other, so that the rotation directions of the two lead screws 21 are opposite. By changing the forward and reverse rotation of the second servo motor 20, the multiple transverse flattening rollers 24 can repeatedly move and flatten the cardboard 3.

[0038] The cardboard 3 and the vertical flattening roller 18 are in contact with each other. At the same time, under the pressure of the hydraulic cylinder 15, the cardboard 3 moves and drives the vertical flattening roller 18 to rotate. The pressure applied by the hydraulic cylinder 15 acts on the cardboard 3, flattening the vertical wrinkles on the cardboard 3. At the same time, the reverse movement of the two lead screws 21 drives the two slides 23 to move in the opposite direction. Meanwhile, the multiple transverse flattening rollers 24 arranged inside the slides 23 come into contact with the cardboard 3. The pressure applied by the hydraulic cylinder 15 acts on the transverse flattening rollers 24, so that the transverse flattening rollers 24 flatten the transverse wrinkles on the cardboard 3.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paperboard flattening structure for carton production, comprising a support frame (2) and a conveyance frame (5) arranged symmetrically, characterized in that, The inner side of the support frame (2) is slidably provided with a support plate (16), two transmission frames (5) are movably connected between the support plate (16), a transmission belt (1) is movably arranged between the two transmission frames (5), the paperboard (3) is arranged on the transmission belt (1), and the two transmission frames (5) are fixedly connected between the support frame (2). The support plate (16) is provided with a flattening assembly for flattening the paperboard (3).

2. The paperboard flattening structure for producing a packaging box according to claim 1, wherein The main transmission roller (13) and the driven roller (6) are rotatably connected between the two transmission frames (5).

3. The paperboard flattening structure for a packaging box production according to claim 2, characterized by, The first servo motor (4) is fixedly connected between the two transmission frames (5), the transmission assembly comprises a driving bevel gear (7) fixedly connected to the output end of the first servo motor (4), the transmission shaft (8) is rotatably connected between the two transmission frames (5), the transmission shaft (8) is fixedly connected with a driven bevel gear (9) on the outer side, the driving bevel gear (7) and the driven bevel gear (9) are engaged, one end of the transmission shaft (8) is fixedly connected with a driving gear (10), one end of the main transmission roller (13) is fixedly connected with a driven gear (12), and the driving gear (10) and the driven gear (12) are rotatably connected with a gear belt (11).

4. The paperboard flattening structure for producing a packaging box according to claim 1, wherein The support plate (16) is fixedly connected with a guide slide column (14) on the side away from the vertical flattening roller (18), the support frame (2) is fixedly connected with a hydraulic cylinder (15) on the side close to the support plate (16), and the telescopic end of the hydraulic cylinder (15) is fixedly connected with the support plate (16).

5. The paperboard flattening structure for producing a packaging box according to claim 1, wherein The outer side of the support plate (16) is fixedly connected with a motor bracket (17), and the inner side of the motor bracket (17) is fixedly connected with a second servo motor (20).

6. The paperboard flattening structure for producing a packaging box according to claim 1, wherein The flattening assembly comprises a chute (22) fixedly connected to the bottom of the support plate (16), the inner side of the chute (22) is centrally and symmetrically slidably provided with a sliding table (23), a plurality of transverse flattening rollers (24) are rotatably connected to the inner side of the sliding table (23), the support frame (2) is fixedly connected with a vertical flattening roller (18) on the side close to the transmission belt (1), and the transverse flattening roller (24) and the vertical flattening roller (18) are perpendicular to each other.

7. The paperboard flattening structure for producing a packaging box according to claim 6, wherein The sliding table (23) is threadedly connected with the lead screw (21), the lead screw (21) is rotatably connected with the chute (22), and the lead screw (21) is fixedly connected with the output end of the second servo motor (20).

8. The paperboard flattening structure for producing a packaging box according to claim 7, wherein Two lead screws (21) extend to the outer side of the chute (22) and are fixedly connected with a reversing gear (19) at the end away from the second servo motor (20), and the two reversing gears (19) are engaged.

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