A strapping device for conveying paperboard

Abstract

The utility model relates to paperboard processing technical field discloses a kind of pressing strip devices for conveying paperboard, including main body frame, the main body frame is provided with pressing strip mark unit assembly, and the paperboard being transported is extruded longitudinal strip mark, the main body frame is provided with anti-upwarp unit;The anti-upwarp unit includes several roots parallelly arranged No. three rotating shafts, and each No. three rotating shaft is provided with paper pressing roller;Through No. one electric push rod drive triangular boss rotates around No. two rotating shaft, drive the paper pressing roller on No. three rotating shaft and press on corrugated paper, utilize paper pressing roller to press on corrugated paper, inhibit the upwarping tendency when corrugated paper is transported, through transmission link adjacent No. rotating shaft, make all triangular boss rotate around No. two rotating shaft synchronously, realize multiple paper pressing roller synchronous same pressure and press on the upper surface of corrugated paperboard, compared with traditional scattered, uneven pressure paper pressing structure, innovatively solve the problem that corrugated paper is easily warped edge and strip deformation due to local pressure difference.

Description

Technical Field

[0001] This utility model relates to the field of paperboard processing technology, and in particular to a pressure strip device for conveying paperboard. Background Technology

[0002] Corrugated cardboard, as a core substrate in the packaging industry, requires longitudinal creases to be formed on its surface during processing, laying the foundation for subsequent carton folding and forming. With the increasing demands for production efficiency and product precision in the packaging industry, corrugated cardboard production lines are gradually developing towards higher speeds and wider widths. Currently, mainstream production lines can achieve conveyor speeds of over 300 meters per minute, and cardboard widths typically range from 1.6 to 2.5 meters.

[0003] However, the stability of the cardboard conveying after the creases are pressed has become a key factor affecting production quality. After the corrugated cardboard is creased, its hollow corrugated structure makes it susceptible to external factors (such as airflow and roller vibration) during the conveying process, which can cause the creased cardboard to get stuck in the continuous process, requiring manual intervention and wasting human resources. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a pressure strip device for conveying cardboard, so as to solve the above-mentioned shortcomings in the prior art.

[0005] Technical solution: A pressing strip device for conveying cardboard includes a main frame, on which a pressing strip unit assembly is provided to extrude longitudinal stripes on the conveyed cardboard, and an anti-warping unit is provided on the main frame;

[0006] The anti-warping unit includes several No. 3 rotating shafts arranged in parallel, and each No. 3 rotating shaft is equipped with a paper pressing roller.

[0007] Each of the three rotating shafts has a triangular protrusion at one end. The other two ends of the triangular protrusion away from the three rotating shaft are respectively provided with a first rotating shaft and a second rotating shaft. The second rotating shaft is rotatably connected to the main frame, and two adjacent first rotating shafts are connected by a transmission rod.

[0008] Furthermore, the anti-tilting unit includes a first electric push rod rotatably connected to the main frame, and the output end of the first electric push rod is rotatably connected to one of the first rotating shafts.

[0009] As a further description of the above technical solution: a centering unit is provided on the main frame, the centering unit includes two fixed seats fixedly connected to the main frame, and a fourth rotating shaft is rotatably connected to each fixed seat. A connecting rod is provided at the upper end of the fourth rotating shaft, and a limit block is provided at the lower end of the fourth rotating shaft.

[0010] As a further description of the above technical solution: the centering unit also includes a second electric push rod set on the main frame. The output end of the second electric push rod is provided with a push plate. The push plate is provided with a sliding groove near both ends. A slider is slidably connected inside each sliding groove.

[0011] Furthermore, a fifth rotating shaft is provided at the end of the connecting rod away from the fourth rotating shaft, and the fifth rotating shaft is rotatably connected to the slider.

[0012] As a further description of the above technical solution: A conveyor is provided on the inner side of the main frame for transporting corrugated cardboard to the bottom of the creasing unit assembly;

[0013] The inner side of the main frame is also equipped with a second conveyor arranged parallel to the first conveyor, which is used to transport the corrugated cardboard with creases pressed out to the next process.

[0014] As a further description of the above technical solution: a receiving component is also provided between the No. 1 conveyor and the No. 2 conveyor;

[0015] The receiving component includes several fixed shafts arranged in parallel, and each fixed shaft is rotatably mounted with a roller.

[0016] As a further description of the above technical solution: a cleaning unit is also provided on the main frame, located at the gap between the No. 1 conveyor and the No. 2 conveyor;

[0017] The cleaning unit includes a fixed frame mounted on the main frame, a mounting base mounted on the fixed frame, the mounting base being arranged at an angle, and a brush mounted on the mounting base.

[0018] As a further description of the above technical solution: the two limiting blocks are symmetrically arranged directly above the No. 1 conveyor.

[0019] Beneficial effects: The first electric push rod drives the triangular protrusion to rotate around the second rotating shaft, which in turn drives the pressure roller on the third rotating shaft to press on the corrugated paper. The pressure roller applies pressure to the corrugated paper, suppressing the tendency of the corrugated paper to curl up during transport. On this basis, the transmission rod connects to the adjacent first rotating shaft, so that all the triangular protrusions rotate around the second rotating shaft synchronously. This achieves multiple pressure rollers pressing the surface of the corrugated paperboard with the same pressure at the same time. Compared with the traditional scattered and uneven pressure pressing structure, this innovative solution solves the problem of corrugated paper curling and stripe deformation due to local pressure differences. It makes the paperboard forming more stable after creasing, adapts to high-speed and wide-width transport scenarios, and improves the consistency of creasing. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural schematic diagram of a pressure strip device for conveying cardboard proposed in this utility model;

[0021] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the anti-tilting unit of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the centering unit of this utility model.

[0024] Legend:

[0025] 1. Main frame; 2. Pressure mark unit assembly; 3. Anti-warping unit; 31. Electric push rod No. 1; 32. Rotating shaft No. 1; 33. Triangular protrusion; 34. Rotating shaft No. 2; 35. Rotating shaft No. 3; 36. Pressure roller; 37. Transmission rod; 4. Centering unit; 41. Electric push rod No. 2; 42. Push plate; 43. Fixed seat; 44. Rotating shaft No. 4; 45. Limiting block; 46. Connecting rod; 47. Slide groove; 48. Sliding block; 49. Rotating shaft No. 5; 5. Receiving assembly; 51. Fixed shaft; 52. Roller shaft; 6. Cleaning unit; 61. Fixed frame; 62. Mounting seat; 63. Brush; 7. Conveyor No. 1; 8. Conveyor No. 2. Detailed Implementation

[0026] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figures 1-4A pressure strip device for conveying cardboard includes a main frame 1. A pressure strip unit assembly 2 is provided on the main frame 1 to extrude longitudinal pressure stripes onto the conveyed cardboard. This is a mature existing technology, and this solution only utilizes it without further elaboration. An anti-warping unit 3 is provided on the main frame 1. The anti-warping unit 3 includes several parallel-arranged No. 3 rotating shafts 35, and each No. 3 rotating shaft 35 is equipped with a pressure roller 36. Each No. 3 rotating shaft 35 has a triangular protrusion 33 at its end. A No. 1 rotating shaft 32 and a No. 2 rotating shaft 33 are respectively provided at the other two ends of the triangular protrusion 33 away from the No. 3 rotating shaft 35. The first rotating shaft 34 is rotatably connected to the main frame 1. The two adjacent first rotating shafts 32 are connected by a transmission rod 37. Specifically, the first rotating shaft 32 is rotatably connected to the transmission rod 37. The anti-tilting unit 3 includes a first electric push rod 31 rotatably connected to the main frame 1. The first electric push rod 31 is preferably arranged at an angle to reduce the work done during startup. The first electric push rod 31 is a mature existing product on the market, so its principle and usage will not be elaborated further. The output end of the first electric push rod 31 is rotatably connected to one of the first rotating shafts 32.

[0028] Specifically, after the corrugated cardboard is pressed into strip-shaped creases by the crease unit assembly 2, it passes under several pressure rollers 36. Before this, the triangular protrusions 33 are driven to rotate around the second rotating shaft 34 by the first electric push rod 31, which in turn causes the pressure rollers 36 on the third rotating shaft 35 to press on the corrugated cardboard. Moreover, under the transmission action of the transmission rod 37, all the triangular protrusions 33 rotate synchronously around the second rotating shaft 34, which in turn drives multiple pressure rollers 36 to press on the upper surface of the corrugated cardboard synchronously and with the same pressure. This can suppress the warping of the corrugated cardboard. In addition, by synchronously driving multiple pressure rollers 36 to press on the top of the corrugated cardboard at the same time, it avoids the deformation of the creases due to uneven local pressure, ensures the consistency of the creases, adapts to high-speed and wide-width cardboard conveying scenarios, and improves the stability of cardboard forming after crease pressing.

[0029] Furthermore, a centering unit 4 is provided on the main frame 1. The centering unit 4 includes two fixed seats 43 fixedly connected to the main frame 1. Each fixed seat 43 is rotatably connected to a fourth rotating shaft 44. A connecting rod 46 is provided at the upper end of the fourth rotating shaft 44, and a limit block 45 is provided at the lower end of the fourth rotating shaft 44, which is used to center and transport the corrugated paper to the creasing unit assembly 2 during its movement.

[0030] Furthermore, the centering unit 4 also includes a second electric push rod 41 disposed on the main frame 1. The output end of the second electric push rod 41 is provided with a push plate 42. It should be noted that, in this embodiment, at least two sets of second electric push rods 41 that can be driven synchronously are preferably provided, so the push plate 42 is not limited. Moreover, the second electric push rod 41 has the same function as the first electric push rod 31 and is only used for it. The push plate 42 is provided with a sliding groove 47 near both ends, and a slider 48 is slidably connected inside each sliding groove 47. Furthermore, a fifth rotating shaft 49 is provided on the end of the connecting rod 46 away from the fourth rotating shaft 44, and the fifth rotating shaft 49 is rotatably connected to the slider 48.

[0031] Specifically, before the corrugated cardboard is conveyed to the creasing unit assembly 2 for creasing, the push plate 42 is moved by the second electric push rod 41. The movement of the push plate 42 causes the slider 48 to slide inside the corresponding groove 47, which in turn drives the connecting rod 46 to rotate through the transmission of the fifth rotating shaft 49. The connecting rod 46 drives the limiting block 45 to rotate through the fourth rotating shaft 44. The two limiting blocks 45 rotate at the same angle but in opposite directions, adjusting them to be the same as the width of the corrugated cardboard, so that the corrugated cardboard is transported in the center, which can prevent the creasing unit assembly 2 from pressing the creasing marks on the corrugated cardboard to the designated position.

[0032] Furthermore, a first conveyor 7 is provided on the inner side of the main frame 1 to transport the corrugated cardboard to the area below the creasing unit assembly 2; a second conveyor 8, arranged parallel to the first conveyor 7, is also provided on the inner side of the main frame 1 to transport the corrugated cardboard with the creasing lines pressed out to the next process. It should be noted that the first conveyor 7 and the second conveyor 8 are existing mature technologies and are only used for transporting corrugated cardboard. This solution only uses them and will not elaborate further.

[0033] Furthermore, a receiving component 5 is provided between the first conveyor 7 and the second conveyor 8; the receiving component 5 includes several fixed shafts 51 arranged in parallel, and each fixed shaft 51 is rotatably provided with a roller shaft 52, which serves to support the first conveyor 7 and the second conveyor 8, so that the corrugated cardboard can be smoothly transferred from the first conveyor 7 to the second conveyor 8.

[0034] Furthermore, a cleaning unit 6 is also provided on the main frame 1, located in the gap between the first conveyor 7 and the second conveyor 8; the cleaning unit 6 includes a fixing frame 61 set on the main frame 1, a mounting seat 62 is provided on the fixing frame 61, and the mounting seat 62 is arranged at an angle, and a brush 63 is provided on the mounting seat 62.

[0035] Specifically, during the process of transferring the corrugated cardboard from conveyor 7 to conveyor 8 after the creases have been pressed out, brush 63 can be used to clean the surface of the corrugated cardboard (such as paper scraps and dust) in real time, reducing the interference of impurities on subsequent processes (such as printing and bonding), improving the appearance and quality of the finished product, and ensuring the cleanliness of the surface of the corrugated cardboard.

[0036] Furthermore, the two limiting blocks 45 are symmetrically arranged directly above the No. 1 conveyor 7.

[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pressure strip device for conveying corrugated cardboard, comprising a main frame (1), wherein a pressure strip unit assembly (2) is provided on the main frame (1) to extrude longitudinal pressure stripes onto the conveyed corrugated cardboard, characterized in that, The main frame (1) is provided with an anti-warping unit (3); The anti-warping unit (3) includes several No. 3 rotating shafts (35) arranged in parallel, and each No. 3 rotating shaft (35) is provided with a paper pressing roller (36). Each of the three rotating shafts (35) is provided with a triangular protrusion (33) at its end. The other two ends of the triangular protrusion (33) away from the three rotating shafts (35) are respectively provided with a first rotating shaft (32) and a second rotating shaft (34). The second rotating shaft (34) is rotatably connected to the main frame (1). The two adjacent first rotating shafts (32) are connected by a transmission rod (37). Furthermore, the anti-tilting unit (3) includes a first electric push rod (31) rotatably connected to the main frame (1), and the output end of the first electric push rod (31) is rotatably connected to one of the first rotating shafts (32).

2. The pressure strip device for conveying cardboard according to claim 1, characterized in that, The main frame (1) is provided with a centering unit (4), which includes two fixed seats (43) fixedly connected to the main frame (1). Each fixed seat (43) is rotatably connected with a fourth rotating shaft (44). The upper end of the fourth rotating shaft (44) is provided with a connecting rod (46), and the lower end of the fourth rotating shaft (44) is provided with a limit block (45).

3. The pressure strip device for conveying cardboard according to claim 2, characterized in that, The centering unit (4) also includes a second electric push rod (41) set on the main frame (1). The output end of the second electric push rod (41) is provided with a push plate (42). The push plate (42) is provided with a sliding groove (47) near both ends. Each sliding groove (47) is slidably connected to a slider (48). Furthermore, a fifth rotating shaft (49) is provided on the end of the connecting rod (46) away from the fourth rotating shaft (44), and the fifth rotating shaft (49) is rotatably connected to the slider (48).

4. The pressure strip device for conveying cardboard according to claim 2, characterized in that, A conveyor (7) is provided on the inner side of the main frame (1) for transporting corrugated cardboard to the bottom of the creasing unit assembly (2); The inner side of the main frame (1) is also provided with a second conveyor (8) arranged in parallel with the first conveyor (7), which is used to transport the corrugated cardboard with strip creases pressed out to the next process.

5. A pressure strip device for conveying cardboard according to claim 4, characterized in that, A receiving component (5) is also provided between the No. 1 conveyor (7) and the No. 2 conveyor (8); The receiving component (5) includes several fixed shafts (51) arranged in parallel on the main frame (1), and each fixed shaft (51) is rotatably provided with a roller (52).

6. A pressure strip device for conveying cardboard according to claim 4, characterized in that, The main frame (1) is also equipped with a cleaning unit (6), which is located in the gap between the No. 1 conveyor (7) and the No. 2 conveyor (8); The cleaning unit (6) includes a fixed frame (61) set on the main frame (1), a mounting base (62) is provided on the fixed frame (61), and the mounting base (62) is arranged at an angle, and a brush (63) is provided on the mounting base (62).

7. A pressure strip device for conveying cardboard according to claim 4, characterized in that, The two limiting blocks (45) are symmetrically arranged directly above the No. 1 conveyor (7).

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