A kind of paper plastic composite bag production is with flattening device

Abstract

This utility model provides a flattening device for producing paper-plastic composite bags, comprising: a conveying unit arranged inside the frame for conveying paper-plastic composite bags; and a flattening unit arranged at the top of the frame for flattening the paper-plastic composite bags. The conveying unit includes a conveyor belt and a drive assembly, which drives the conveyor belt to rotate. A gantry frame is provided at one end of the frame, and a leveling roller is rotatably arranged inside the gantry frame. When the paper-plastic composite bag is conveyed out of the flattening unit, it is fed into the conveyor belt below the leveling roller. A top column lifts part of the conveyor belt, causing a portion of the conveyor belt to bulge upwards. The paper-plastic composite bag then passes through the bulge and the leveling roller, where it is squeezed and flattened by the leveling roller in conjunction with the bulge, facilitating subsequent packaging. A second support roller, in conjunction with the leveling roller, further facilitates the flattening of the paper-plastic composite bag.

Description

Technical Field

[0001] This utility model relates to the field of paper-plastic composite bag production, and in particular to a flattening device for paper-plastic composite bag production. Background Technology

[0002] Paper-plastic composite bags need to be flattened through certain methods. This process makes the paper-plastic composite bags more flat and reduces their volume, making them easier to compress and pack. It also allows more paper-plastic composite bags to be packed into the same volume, making them easier to transport.

[0003] The prior art can be referenced in Chinese authorized utility model patent with publication number CN217435155U, which specifically describes a flattening device for producing paper-plastic composite bags. This device includes a worktable, a conveying assembly on top of the worktable, a flattening box fixedly connected to the top of the worktable, a lifting mechanism on top of the flattening box, and a tensioning mechanism fixedly connected to the side of the flattening box. This prior art primarily allows for adjustment of the height of the flattening rollers, facilitating the flattening of paper-plastic composite bags.

[0004] The aforementioned prior art has the following shortcomings in actual implementation: after the paper-plastic composite bag is flattened, the two ends tend to curl up, making the whole bag arc-shaped, which is inconvenient for subsequent stacking and packaging. The prior art cannot flatten the paper-plastic composite bag. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a flattening device for the production of paper-plastic composite bags, thereby resolving the issues existing in the prior art.

[0006] To achieve the above objectives, the present invention provides a flattening device for producing paper-plastic composite bags, comprising: a frame; A conveying unit, arranged inside the frame, is used to convey paper-plastic composite bags; A leveling unit, arranged at the top of the frame, is used to level paper-plastic composite bags; The conveying unit includes a conveyor track and a drive assembly, which drives the conveyor track to rotate. A gantry frame is provided at the top of one end of the frame, and a leveling roller is rotatably installed inside the gantry frame; A top column is rotatably mounted inside one end of the frame. The top column is located inside one end of the conveyor belt and at one end of the leveling unit. A second support roller is rotatably mounted inside the frame. The second support roller is located inside the conveyor belt and is vertically opposite to the leveling roller.

[0007] Furthermore, a fourth motor is fixedly installed on one side of the gantry frame, and the output end of the fourth motor is fixedly connected to one end of the leveling roller.

[0008] Furthermore, a cylinder is fixedly installed on the top of the gantry frame, and the output end of the cylinder extends into the interior of the gantry frame and is fixedly connected to an installation frame. A first limiting post is rotatably installed at the bottom inner side of the installation frame, and the first limiting post is located between the top post and the leveling roller.

[0009] Furthermore, the top two ends of the mounting frame are fixedly provided with second limiting posts, which are slidably connected to the top of the gantry frame.

[0010] Furthermore, the drive assembly includes drive rollers rotatably disposed at both ends inside the frame, a first motor fixedly disposed on one side of the frame, the conveyor belt being sleeved on the two drive rollers, and the output end of the first motor being fixedly connected to one end of one of the drive rollers.

[0011] Furthermore, the flattening unit includes a fixed housing fixedly disposed on the top of the frame and a pressing roller rotatably disposed at one end inside the fixed housing, the pressing roller being close to the conveyor belt.

[0012] Furthermore, fixing blocks are fixedly arranged on both sides of the fixing shell, and a sliding groove is opened inside the fixing block. The sliding groove passes through the fixing block and the fixing shell. A slider is slidably arranged inside the sliding groove. The pressing roller is rotatably arranged between the two sliders. A third motor is fixedly arranged on one side of one of the sliders. The output end of the third motor is fixedly connected to one end of the pressing roller. A hydraulic cylinder is fixedly arranged on the top of the fixing block. The output end of the hydraulic cylinder extends into the interior of the fixing block and connects with the slider.

[0013] Furthermore, multiple guide rollers are rotatably arranged inside the fixed shell, and multiple synchronous pulleys are rotatably arranged on one side of the fixed shell. A synchronous belt is sleeved between two adjacent synchronous pulleys, and one end of the synchronous pulley is connected to the guide rollers. A second gear is rotatably mounted on the other side of the fixed housing. The second gear is fixedly connected to one end of one of the guide rollers. A first gear is rotatably mounted on the other side of the fixed housing. A second motor is fixedly mounted on the other side of the fixed housing. The output end of the second motor is connected to the first gear. The first gear and the second gear are meshed together.

[0014] Furthermore, the frame is internally rotatably equipped with a plurality of first support rollers, which are located inside the conveyor belt.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: after the paper-plastic composite bag is conveyed out of the flattening unit, it is fed into the leveling roller by the conveyor belt. The top column lifts part of the conveyor belt, causing part of the conveyor belt to bulge upward. Then the paper-plastic composite bag passes through the bulge and the leveling roller. The leveling roller squeezes the paper-plastic composite bag and cooperates with the bulge to level the paper-plastic composite bag, which is convenient for subsequent packaging. The second support roller cooperates with the leveling roller to facilitate the leveling of the paper-plastic composite bag.

[0016] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a first three-dimensional structural schematic diagram of this utility model; Figure 2 This is a schematic diagram of the second three-dimensional structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the frame in this utility model; Figure 4 This is a schematic diagram of the internal structure of the gantry frame in this utility model.

[0018] In the diagram: 1. Frame; 2. Conveyor track; 3. First motor; 4. Fixed housing; 5. Synchronous pulley; 6. Synchronous belt; 7. Fixed block; 8. Hydraulic cylinder; 9. Gantry frame; 10. Cylinder; 11. Second limit post; 12. First gear; 13. Second gear; 14. Second motor; 15. Sliding block; 16. Third motor; 17. Fourth motor; 18. Drive roller; 19. First support roller; 20. Guide roller; 21. Pressing roller; 22. Top column; 23. Second support roller; 24. Leveling roller; 25. Mounting frame; 26. First limit post. Detailed Implementation

[0019] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, specific embodiments of this utility model are now described with reference to the accompanying drawings. However, the scope of protection of this utility model is not limited to the following description.

[0020] Reference Figure 1-4 As shown, a flattening device for producing paper-plastic composite bags includes: a frame 1; a conveying unit arranged inside the frame 1 for conveying paper-plastic composite bags; and a flattening unit arranged on top of the frame 1 for flattening the paper-plastic composite bags. The conveying unit includes a conveyor belt 2 and a drive assembly, which drives the conveyor belt 2 to rotate. A gantry frame 9 is provided at the top of one end of the frame 1, and a leveling roller 24 is rotatably arranged inside the gantry frame 9. A top column 22 is rotatably arranged inside one end of the frame 1. The top column 22 is located inside one end of the conveyor belt 2 and at one end of the leveling unit. A second support roller 23 is rotatably arranged inside the frame 1. The second support roller 23 is located inside the conveyor belt 2 and is vertically opposite to the leveling roller 24. A fourth motor 17 is fixedly installed on one side of the gantry frame 9, and the output end of the fourth motor 17 is fixedly connected to one end of the leveling roller 24; The drive assembly includes drive rollers 18 rotatably disposed at both ends inside the frame 1, a first motor 3 fixedly disposed on one side of the frame 1, and a conveyor belt 2 sleeved on the two drive rollers 18. The output end of the first motor 3 is fixedly connected to one end of one of its drive rollers 18.

[0021] The present invention provides a technical solution in which, during use, a paper-plastic composite bag is placed on a conveyor belt 2, and then a first motor 3 is started to drive a drive roller 18 to rotate. The drive roller 18 drives the conveyor belt 2 to rotate, thereby conveying the paper-plastic composite bag to a flattening unit. The flattening unit then flattens the paper-plastic composite bag. After the paper-plastic composite bag is conveyed out of the flattening unit, it is fed into the conveyor belt 2 and placed under a leveling roller 24. A top column 22 lifts a portion of the conveyor belt 2, causing a portion of the conveyor belt 2 to bulge upwards. The paper-plastic composite bag then passes over the bulge and the leveling roller 24, which squeezes the paper-plastic composite bag. This, combined with the bulge, flattens the paper-plastic composite bag, facilitating subsequent packaging. A second support roller 23, in conjunction with the leveling roller 24, further facilitates the flattening of the paper-plastic composite bag.

[0022] Preferably, a cylinder 10 is fixedly installed on the top of the gantry frame 9, and the output end of the cylinder 10 extends into the interior of the gantry frame 9 and is fixedly connected to an installation frame 25. A first limiting post 26 is rotatably installed at the bottom of the installation frame 25, and the first limiting post 26 is located between the top post 22 and the leveling roller 24. The top two ends of the mounting bracket 25 are fixedly provided with second limiting posts 11, which are slidably connected to the top of the gantry 9.

[0023] Specifically, the cylinder 10 can drive the mounting frame 25 and the first limiting post 26 to move downwards. The first limiting post 26 can press the paper-plastic composite bag down to a height lower than the leveling roller 24, thus facilitating the transport of the paper-plastic composite bag between the leveling roller 24 and the conveyor belt 2 for leveling. The second limiting post 11 can conveniently limit the mounting frame 25.

[0024] Preferably, the flattening unit includes a fixed housing 4 fixedly installed on the top of the frame 1 and a pressing roller 21 rotatably installed inside one end of the fixed housing 4, the pressing roller 21 being close to the conveyor belt 2; Fixed blocks 7 are fixedly installed on both sides of the fixed shell 4. A sliding groove is opened inside the fixed block 7, which passes through the fixed block 7 and the fixed shell 4. A slider 15 is slidably installed inside the sliding groove. The pressing roller 21 is rotatably installed between the two sliders 15. A third motor 16 is fixedly installed on one side of one slider 15. The output end of the third motor 16 is fixedly connected to one end of the pressing roller 21. A hydraulic cylinder 8 is fixedly installed on the top of the fixed block 7. The output end of the hydraulic cylinder 8 extends into the interior of the fixed block 7 and connects with the slider. Multiple guide rollers 20 are rotatably arranged inside the fixed shell 4, and multiple synchronous pulleys 5 are rotatably arranged on one side of the fixed shell 4. A synchronous belt 6 is sleeved between two adjacent synchronous pulleys 5, and one end of the synchronous pulley 5 is connected to the guide rollers 20. A second gear 13 is rotatably arranged on the other side of the fixed shell 4. The second gear 13 is fixedly connected to one end of a guide roller 20. A first gear 12 is rotatably arranged on the other side of the fixed shell 4. A second motor 14 is fixedly arranged on the other side of the fixed shell 4. The output end of the second motor 14 is connected to the first gear 12. The first gear 12 and the second gear 13 are meshed together. Multiple first support rollers 19 are rotatably arranged inside the frame 1, and the first support rollers 19 are located inside the conveyor belt 2.

[0025] Specifically, after the paper-plastic composite bag is fed into the fixed housing 4, multiple guide rollers 20 guide and press the pressure roller. These guide rollers 20 are arranged in an inclined manner to press the paper-plastic composite bag, which is then fed step-by-step under the pressing roller 21. As the paper-plastic composite bag passes through the pressing roller 21, the pressing roller 21, in conjunction with the first support roller 19, flattens the bag. Starting the third motor 16 drives the pressing roller 21 to rotate, facilitating the transport of the paper-plastic composite bag. The second motor 14 drives the first gear 12 to rotate, which in turn drives the second gear 13, which in turn drives the guide rollers 20. The synchronous pulley 5 and synchronous belt 6 drive the multiple guide rollers 20 to rotate synchronously. The hydraulic cylinder 8 moves the slider up and down, which in turn moves the pressing roller 21 up and down.

[0026] Working process: In use, the paper-plastic composite bag is placed on the conveyor belt 2, and then the first motor 3 is started to drive the drive roller 18 to rotate. The drive roller 18 drives the conveyor belt 2 to rotate, thereby conveying the paper-plastic composite bag into the flattening unit. The flattening unit then flattens the paper-plastic composite bag. After the paper-plastic composite bag is conveyed out of the flattening unit, it is fed into the conveyor belt 2 and placed under the leveling roller 24. The top column 22 lifts part of the conveyor belt 2, causing part of the conveyor belt 2 to bulge upwards. Then, the paper-plastic composite bag passes through the bulge and the leveling roller 24. The leveling roller 24 squeezes the paper-plastic composite bag, and in conjunction with the bulge, the paper-plastic composite bag is flattened. After the paper-plastic composite bag is fed into the fixed shell 4, multiple guide rollers 20 guide and press the pressure roller. These guide rollers 20 are arranged in an inclined manner to press the paper-plastic composite bag, which is then fed step-by-step under the pressing roller 21. As the paper-plastic composite bag passes through the pressing roller 21, the pressing roller 21, in conjunction with the first support roller 19, flattens the bag. Starting the third motor 16 drives the pressing roller 21 to rotate, facilitating the transport of the paper-plastic composite bag. The second motor 14 drives the first gear 12 to rotate, which in turn drives the second gear 13, which in turn drives the guide rollers 20. The synchronous pulley 5 and synchronous belt 6 enable the multiple guide rollers 20 to rotate synchronously.

[0027] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A flattening device for producing paper-plastic composite bags, characterized in that, include: Rack (1); A conveying unit is arranged inside the frame (1) for conveying paper-plastic composite bags; A flattening unit is arranged on top of the frame (1) for flattening paper-plastic composite bags; The conveying unit includes a conveyor track (2) and a drive assembly, which drives the conveyor track (2) to rotate. A gantry frame (9) is provided at the top of one end of the frame (1), and a leveling roller (24) is rotatably provided inside the gantry frame (9). A top column (22) is rotatably provided at one end of the frame (1). The top column (22) is located at one end of the conveyor belt (2) and at one end of the leveling unit. A second support roller (23) is rotatably provided inside the frame (1). The second support roller (23) is located inside the conveyor belt (2) and is vertically opposite to the leveling roller (24).

2. The flattening device for producing paper-plastic composite bags according to claim 1, characterized in that: A fourth motor (17) is fixedly installed on one side of the gantry (9), and the output end of the fourth motor (17) is fixedly connected to one end of the leveling roller (24).

3. The flattening device for producing paper-plastic composite bags according to claim 1, characterized in that: A cylinder (10) is fixedly installed on the top of the gantry frame (9). The output end of the cylinder (10) extends into the interior of the gantry frame (9) and is fixedly connected to an installation frame (25). A first limiting post (26) is rotatably installed on the inner bottom of the installation frame (25). The first limiting post (26) is located between the top post (22) and the leveling roller (24).

4. The flattening device for producing paper-plastic composite bags according to claim 3, characterized in that: The top two ends of the mounting bracket (25) are fixedly provided with second limiting posts (11), and the second limiting posts (11) are slidably connected to the top of the gantry frame (9).

5. The flattening device for producing paper-plastic composite bags according to claim 1, characterized in that: The drive assembly includes drive rollers (18) rotatably disposed at both ends inside the frame (1) and a first motor (3) fixedly disposed on one side of the frame (1). The conveyor belt (2) is sleeved on the two drive rollers (18), and the output end of the first motor (3) is fixedly connected to one end of one of the drive rollers (18).

6. The flattening device for producing paper-plastic composite bags according to claim 1, characterized in that: The flattening unit includes a fixed shell (4) fixedly installed on the top of the frame (1) and a pressing roller (21) rotatably installed inside one end of the fixed shell (4), the pressing roller (21) being close to the conveyor belt (2).

7. A flattening device for producing paper-plastic composite bags according to claim 6, characterized in that: Fixed blocks (7) are fixedly provided on both sides of the fixed shell (4). A sliding groove is provided inside the fixed block (7). The sliding groove passes through the fixed block (7) and the fixed shell (4). A slider (15) is slidably provided inside the sliding groove. The pressing roller (21) is rotatably provided between the two sliders (15). A third motor (16) is fixedly provided on one side of one of the sliders (15). The output end of the third motor (16) is fixedly connected to one end of the pressing roller (21). A hydraulic cylinder (8) is fixedly provided on the top of the fixed block (7). The output end of the hydraulic cylinder (8) extends into the interior of the fixed block (7) and connects with the slider.

8. A flattening device for producing paper-plastic composite bags according to claim 6, characterized in that: The fixed shell (4) is rotatably provided with multiple guide rollers (20), and multiple synchronous pulleys (5) are rotatably provided on one side of the fixed shell (4). A synchronous belt (6) is sleeved between two adjacent synchronous pulleys (5), and one end of the synchronous pulley (5) is connected to the guide rollers (20). A second gear (13) is rotatably provided on the other side of the fixed shell (4). The second gear (13) is fixedly connected to one end of one of the guide rollers (20). A first gear (12) is rotatably provided on the other side of the fixed shell (4). A second motor (14) is fixedly provided on the other side of the fixed shell (4). The output end of the second motor (14) is connected to the first gear (12). The first gear (12) and the second gear (13) are meshed together.

9. A flattening device for producing paper-plastic composite bags according to claim 6, characterized in that: The frame (1) is internally equipped with a plurality of first support rollers (19), which are located inside the conveyor belt (2).

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