A packaging film smoothing device for a packaging machine

Abstract

The utility model discloses a packaging film smoothing device for packaging machine, including base, the input of base is rotatively connected with two groups of guide roller, and the top of two groups of guide roller is equipped with pre -tensioning mechanism, and the position rotatively connected with the drive smoothing roller of output, the top of drive smoothing roller is installed with the stand, and the inside of stand is connected with the driven smoothing roller through adjusting mechanism, the utility model discloses can realize the tension of packaging film through pre -tensioning mechanism to reduce the initial wrinkle, and after packaging film enters between drive smoothing roller and driven smoothing roller, through adjusting mechanism can adjust the height of driven smoothing roller to adapt to different specifications of packaging film to the cooperation of drive smoothing roller with, can be extruded and smoothed to packaging film, and finally completes smoothing processing, and then through above -mentioned structure, can adapt to different specifications of packaging film, and has promoted smoothing effect and applicability.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, specifically to a packaging film smoothing device for packaging machines. Background Technology

[0002] During the operation of the packaging machine, when the packaging film is unwound and conveyed to the packaging station, uneven tension, deviation of the conveying path, or wrinkles of the film itself often lead to defects such as uneven film surface and obvious wrinkles in the packaged product, which affect the appearance quality of the product and the sealing of the packaging. Therefore, a packaging film smoothing device is needed.

[0003] Existing packaging film smoothing devices have the following shortcomings: the smoothing structure is fixed and cannot adapt to packaging films of different specifications, resulting in poor versatility; the lack of a pre-tensioning mechanism makes the packaging film prone to new wrinkles due to looseness before smoothing; therefore, it is necessary to design a packaging film smoothing device for packaging machines to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a packaging film smoothing device for packaging machines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a packaging film smoothing device for a packaging machine, comprising a base, two sets of guide rollers rotatably connected to the input end of the base, a pre-tensioning mechanism for facilitating packaging film tensioning provided on the top of the base above the two sets of guide rollers, an active smoothing roller rotatably connected to the inner side of the base near the output end, one end of which is connected to the output end of a second motor installed on one side of the base, a stand installed on the top of the base above the active smoothing roller, a driven smoothing roller for use with the active smoothing roller rotatably connected to the inner side of the stand, and connected to the driven smoothing roller through an adjustment mechanism for easy height adjustment.

[0006] Preferably, the adjustment mechanism includes a handwheel, and the inner walls of both sides of the upright frame are provided with sliding grooves. The inner sides of the two sets of sliding grooves are slidably connected to the mounting frame. The driven smoothing roller is rotatably connected to the inner side of the mounting frame. A connecting cylinder is provided at the top center of the mounting frame, one end of which extends to the outside of the upright frame and is slidably connected to the upright frame. A fixing frame is installed on the top of the upright frame, and an adjusting screw is rotatably connected at the center of the fixing frame. One end of the adjusting screw is threadedly connected to the connecting cylinder, and the other end is equipped with the handwheel.

[0007] Preferably, both the active smoothing roller and the driven smoothing roller have two sets of spiral grooves on their surfaces. The two sets of grooves extend from the middle of the roller to both ends and rotate in opposite directions.

[0008] Preferably, the top of the fixing frame is fitted with a sleeve around the outer ring of the adjusting screw, and is threaded with a locking bolt to facilitate fixing the adjusting screw.

[0009] Preferably, the pre-tensioning mechanism includes a tensioning roller. The top of the base is connected to a top plate via four sets of uprights. Lifting blocks are slidably connected to two adjacent sets of uprights. The tensioning roller is rotatably connected between the two sets of lifting blocks. Two sets of rotating cylinders are rotatably connected to the top plate. Each of the rotating cylinders has a driven gear sleeved on its outer ring. Both sets of driven gears mesh with a driving gear rotatably connected to the top of the top plate. The top of the driving gear is connected to the output end of a first motor. The first motor is mounted on a mounting base located on the side wall of the top plate. Both sets of rotating cylinders are threadedly connected to connecting rods. The other ends of the connecting rods are respectively connected to the two sets of lifting blocks.

[0010] Preferably, the base has fixing plates on both sides near the bottom, and each of the two fixing plates has two sets of waist-shaped mounting holes.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The packaging film of this utility model can be guided and conveyed by two sets of guide rollers at the input end of the base. The pre-tensioning mechanism can achieve tensioning of the packaging film to reduce initial wrinkles. Then, the packaging film enters between the active smoothing roller and the driven smoothing roller. The second motor can drive the active smoothing roller to rotate. The driven smoothing roller on the inner side of the stand can be adjusted in height by the adjustment mechanism to adapt to different specifications of packaging film. Thus, it can cooperate with the active smoothing roller to squeeze and smooth the packaging film, and finally complete the smoothing process. Therefore, through the above structure, it can adapt to different specifications of packaging film, improving the smoothing effect and applicability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a bottom view of the present invention;

[0015] Figure 3 This is a side view and a top view of the present invention;

[0016] Figure 4 for Figure 2 Enlarged view of part A in the image;

[0017] Figure 5 for Figure 3 Enlarged view of part B in the image.

[0018] In the diagram: 1. Base, 2. Guide roller, 3. Upright pole, 4. Top plate, 5. Lifting block, 6. Tensioning roller, 7. Rotary drum, 8. Driven gear, 9. Driven gear, 10. First motor, 11. Mounting seat, 12. Connecting rod, 13. Active smoothing roller, 14. Second motor, 15. Driven smoothing roller, 16. Upright frame, 17. Slide groove, 18. Mounting frame, 19. Connecting cylinder, 20. Fixing frame, 21. Adjusting screw, 22. Handwheel, 23. Sleeve, 24. Locking bolt, 25. Inclined groove, 26. Fixing plate, 27. Mounting hole. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] Please refer to Figure 1-5 As shown, this utility model provides a packaging film smoothing device for a packaging machine, including a base 1. Two sets of guide rollers 2 are rotatably connected to the input end of the base 1. A pre-tensioning mechanism for facilitating the tensioning of the packaging film is provided on the top of the base 1 above the two sets of guide rollers 2. An active smoothing roller 13 is rotatably connected to the inner side of the base 1 near the output end. One end of the active smoothing roller 13 is connected to the output end of a second motor 14 installed on one side of the base 1. A stand 16 is installed on the top of the base 1 above the active smoothing roller 13. A driven smoothing roller 15 for use with the active smoothing roller 13 is rotatably connected to the inner side of the stand 16 and is connected to the driven smoothing roller 15 through an adjustment mechanism for easy height adjustment.

[0022] Specifically, the packaging film can be guided and conveyed by two sets of guide rollers 2 at the input end of the base 1. The pre-tensioning mechanism located above the guide rollers 2 can tension the packaging film to reduce initial wrinkles. Then, the packaging film enters between the active smoothing roller 13 and the driven smoothing roller 15. The second motor 14 can drive the active smoothing roller 13 to rotate. The driven smoothing roller 15 inside the stand 16 can adjust its height under the action of the adjustment mechanism to adapt to different specifications of packaging film. Thus, it can cooperate with the active smoothing roller 13 to squeeze and smooth the packaging film, and finally complete the smoothing process. Therefore, through the above structure, it can adapt to different specifications of packaging film, improving the smoothing effect and applicability.

[0023] The adjustment mechanism includes a handwheel 22. Slide grooves 17 are provided on the inner walls of both sides of the upright frame 16. Mounting frames 18 are slidably connected to the inner sides of the two sets of slide grooves 17. The driven smoothing roller 15 is rotatably connected to the inner side of the mounting frame 18. A connecting cylinder 19 is located at the top center of the mounting frame 18, with one end extending to the outside of the upright frame 16 and slidably connected to it. A fixing frame 20 is installed on the top of the upright frame 16. An adjusting screw 21 is rotatably connected to the center of the fixing frame 20. One end of the adjusting screw 21 is threadedly connected to the connecting cylinder 19, and the other end is equipped with a handwheel 22. Two sets of spiral grooves 25 are provided on the surfaces of both the active smoothing roller 13 and the driven smoothing roller 15. Both sets of grooves 25 extend from the middle of the roller towards both ends. The rollers extend and rotate in opposite directions. By turning the handwheel 22, the adjusting screw 21 can be rotated, which in turn causes the connecting cylinder 19, which is threaded to the adjusting screw 21, to slide up and down along the sliding grooves 17 on both sides of the upright frame 16. This allows the height of the driven smoothing roller 15 to be adjusted to accommodate different specifications of packaging film. The active smoothing roller 13 can rotate under the drive of the second motor 14. It works in conjunction with the driven smoothing roller 15 to compress the packaging film. The two sets of spiral grooves 25 extending from the middle of the roller to both ends and rotating in opposite directions can generate a stretching force on the packaging film to both sides during rotation, enhancing the smoothing effect. Thus, by setting these features, the device can accommodate different specifications of packaging film, improving its applicability and smoothing efficiency.

[0024] The top of the fixing frame 20 is fitted with a sleeve 23 on the outer ring of the adjusting screw 21, and a locking bolt 24 is threadedly connected to it to facilitate the fixing of the adjusting screw 21. The sleeve 23 on the top of the fixing frame 20, together with the threaded locking bolt 24, can fix the adjusting screw 21, prevent the driven smoothing roller 15 from shifting in height, and improve the stability of the smoothing pressure.

[0025] The pre-tensioning mechanism includes a tensioning roller 6. A top plate 4 is connected to the top of the base 1 via four sets of uprights 3. Lifting blocks 5 are slidably connected to adjacent sets of uprights 3. A tensioning roller 6 is rotatably connected between the two sets of lifting blocks 5. Two sets of rotating drums 7 are rotatably connected to the top plate 4, each with a driven gear 8 sleeved on its outer ring. Both sets of driven gears 8 mesh with a driving gear 9 rotatably connected to the top of the top plate 4. The top of the driving gear 9 is connected to the output end of a first motor 10. The first motor 10 is mounted on a mounting base 11 located on the side wall of the top plate 4. Both sets of rotating drums 7 are threadedly connected to connecting rods 12. The other ends of the connecting rods 12... One end is connected to two sets of lifting blocks 5 respectively. The first motor 10 can drive the active gear 9 to rotate. The two sets of driven gears 8 meshing with the active gear 9 can rotate accordingly and drive the rotating drum 7 to rotate synchronously. Through the threaded connection between the rotating drum 7 and the connecting rod 12, the connecting rod 12 can drive the lifting block 5 to slide up and down along the upright 3, thereby adjusting the height of the tension roller 6 between the two sets of lifting blocks 5. Through the cooperation of the tension roller 6 and the lower guide roller 2, different tensions can be applied to the packaging film to achieve pre-tension adjustment. Furthermore, through the setting, the tension of the packaging film can be precisely adjusted, improving the pre-tension effect.

[0026] The base 1 has two fixing plates 26 on both sides near the bottom. Each fixing plate 26 has two sets of waist-shaped mounting holes 27. The two sets of waist-shaped mounting holes 27 on the fixing plates 26 can be used to install and fix the whole device. The waist-shaped design can flexibly adjust the installation position, improving the installation adaptability.

[0027] Working principle: First, the packaging film is guided and conveyed by two sets of guide rollers 2 at the input end of the base 1. The first motor 10 drives the drive gear 9 to rotate, and the two sets of driven gears 8 meshing with the drive gear 9 can rotate accordingly, driving the rotating drum 7 to rotate synchronously. Through the threaded connection between the rotating drum 7 and the connecting rod 12, the connecting rod 12 can drive the lifting block 5 to slide up and down along the upright 3, thereby adjusting the height of the tensioning roller 6 between the two sets of lifting blocks 5. Through the cooperation of the tensioning roller 6 and the lower guide roller 2, pretension can be applied to the packaging film to reduce initial wrinkles. Then the packaging film enters the active smoothing roller 13 and the driven roller 8. Between the smoothing rollers 15, by rotating the handwheel 22, the adjusting screw 21 can drive the connecting cylinder 19 and the mounting bracket 18 to slide along the slide groove 17, thereby adjusting the height of the driven smoothing roller 15 to accommodate different specifications of packaging film. The adjusting screw 21 can be fixed by the locking bolt 24, and the active smoothing roller 13 can be driven to rotate by the second motor 14. It can cooperate with the driven smoothing roller 15 to squeeze the packaging film. The opposing spiral grooves 25 on the surfaces of the two rollers can generate lateral stretching force to enhance the smoothing effect. Finally, the smoothed packaging film can be output from the output end of the base 1, thus completing the entire operation process.

[0028] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A packaging film smoothing device for a packaging machine, comprising a base (1), characterized in that: The input end of the base (1) is rotatably connected to two sets of guide rollers (2). The top of the base (1) above the two sets of guide rollers (2) is provided with a pre-tensioning mechanism to facilitate the tensioning of the packaging film. The inner side of the base (1) near the output end is rotatably connected to an active smoothing roller (13), one end of which is connected to the output end of a second motor (14) installed on one side of the base (1). The top of the base (1) above the active smoothing roller (13) is provided with a stand (16). The inner side of the stand (16) is rotatably connected to a driven smoothing roller (15) that works with the active smoothing roller (13), and is connected to the driven smoothing roller (15) through an adjustment mechanism that facilitates height adjustment.

2. The packaging film smoothing device for a packaging machine according to claim 1, characterized in that: The adjustment mechanism includes a handwheel (22). The inner walls of both sides of the upright frame (16) are provided with sliding grooves (17). The inner sides of the two sets of sliding grooves (17) are slidably connected to the mounting frame (18). The driven smoothing roller (15) is rotatably connected to the inner side of the mounting frame (18). The top center of the mounting frame (18) is provided with a connecting cylinder (19), one end of which extends to the outside of the upright frame (16) and is slidably connected to the upright frame (16). The top of the upright frame (16) is equipped with a fixing frame (20). The center of the fixing frame (20) is rotatably connected to an adjusting screw (21). One end of the adjusting screw (21) is threadedly connected to the connecting cylinder (19), and the other end is equipped with the handwheel (22).

3. The packaging film smoothing device for a packaging machine according to claim 2, characterized in that: The surfaces of both the active smoothing roller (13) and the driven smoothing roller (15) are provided with two sets of spiral grooves (25). Both sets of grooves (25) extend from the middle of the roller to both ends and rotate in opposite directions.

4. The packaging film smoothing device for a packaging machine according to claim 2, characterized in that: The top of the fixing bracket (20) is fitted with a sleeve (23) on the outer ring of the adjusting screw (21), and is threaded with a locking bolt (24) to facilitate the fixing of the adjusting screw (21).

5. A packaging film smoothing device for a packaging machine according to claim 1, characterized in that: The pre-tensioning mechanism includes a tensioning roller (6). The top of the base (1) is connected to a top plate (4) via four sets of uprights (3). Lifting blocks (5) are slidably connected to two adjacent sets of uprights (3). The tensioning roller (6) is rotatably connected between the two sets of lifting blocks (5). Two sets of rotating cylinders (7) are rotatably connected to the top plate (4). Each of the cylinders has a driven gear (8) sleeved on its outer ring. Both sets of driven gears (8) mesh with a driving gear (9) rotatably connected to the top of the top plate (4). The top of the driving gear (9) is connected to the output end of a first motor (10). The first motor (10) is mounted on a mounting seat (11) on the side wall of the top plate (4). Both sets of rotating cylinders (7) are threadedly connected to connecting rods (12). The other ends of the two sets of connecting rods (12) are respectively connected to the two sets of lifting blocks (5).

6. A packaging film smoothing device for a packaging machine according to claim 5, characterized in that: The base (1) is provided with fixing plates (26) on both sides near the bottom, and two sets of waist-shaped mounting holes (27) are provided on both sets of fixing plates (26).

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