Packaging film conveying device of packaging machine

Abstract

The utility model discloses a packaging film conveying device of a packaging machine, which comprises an unwinding mechanism, a tensioning mechanism and an adsorption conveying mechanism which are sequentially arranged along the conveying direction of a packaging film, and the adsorption conveying mechanism comprises a third rack and a lifting driving mechanism used for driving the third rack to lift. A coding module, an easy-to-tear opening cutter module, a static electricity removing module, a light detection in-place module, a film conveying module, a film cutting-off module and a film adsorption module are sequentially arranged on the third rack in the packaging film conveying direction. The packaging film conveying device of the packaging machine has the advantages of being compact and reasonable in structure, high in integration degree and good in compatibility, and the production quality can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, in particular to a packaging film conveying device of a packaging machine. Background Art

[0002] Tissue packaging machines are mainly used for bagging soft tissues of various specifications. Tissues are packaged with packaging film, which is pushed into the packaging film by a tissue pushing device. The left and right push plates then wrap the left and right ends of the packaging film around the tissues, and heat-sealing plates are used for side sealing. However, the film supply mechanism of existing tissue packaging machines is not arranged rationally, and the packaging film is prone to wrinkles or deviation from the conveying center during transportation, which affects the production quality of tissue packaging and has certain limitations. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a packaging film conveying device for a packaging machine which has a compact and reasonable structure, high integration, good compatibility and can effectively improve production quality.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A packaging film conveying device of a packaging machine includes an unwinding mechanism, a tensioning mechanism, and an adsorption conveying mechanism sequentially arranged along the packaging film conveying direction, wherein the adsorption conveying mechanism includes a third frame and a lifting drive mechanism for driving the third frame to move up and down, and the third frame is sequentially provided with a coding module, an easy-tear cutter module, an anti-static module, an optical detection module, a film conveying module, a film cutting module, and a film adsorption module along the packaging film conveying direction.

[0006] As a further improvement of the above technical solution:

[0007] The film conveying module includes a film feeding roller, the film cutting module includes a cutter roller, and the film adsorption module includes two groups of vacuum conveyor belts arranged at intervals. The film feeding roller, the cutter roller and the vacuum conveyor belt are arranged in sequence from top to bottom.

[0008] The easy-tear cutter module is movably arranged on the third frame through a gear rack mechanism, and a first hand wheel for driving the gear to rotate is further arranged on the outer side of the third frame.

[0009] The third frame is also provided with a plurality of groups of third guide rollers.

[0010] The unwinding mechanism includes a first frame, a first unwinding roller, a second unwinding roller, and a drive motor for driving the first unwinding roller and the second unwinding roller to rotate. The first frame is provided with a centering limit assembly located between the first unwinding roller and the second unwinding roller.

[0011] The centering and limiting assembly includes a first guide shaft, a first movable seat movably arranged on the first guide shaft, and a centering adjustment mechanism for driving the first movable seat to move back and forth. The first movable seat is provided with a first limiting shaft and a second limiting shaft.

[0012] The first movable seat is provided with a first limiting groove and a second limiting groove. The first limiting shaft is movably connected to the first limiting groove, and the second limiting shaft is movably connected to the second limiting groove.

[0013] The first frame is also provided with a plurality of groups of first guide rollers.

[0014] The tensioning mechanism includes a second frame and a movable connecting seat movably arranged on the second frame, a plurality of groups of upper tensioning rollers are rotatably arranged on the second frame, and a plurality of groups of lower tensioning rollers are rotatably arranged on the movable connecting seat.

[0015] The movable connecting seat is a split structure, including a first movable seat and a second movable seat, the lower tensioning roller is rotatably arranged between the first movable seat and the second movable seat, and the first movable seat and the second movable seat are respectively slidably connected to both sides of the second frame through a sliding connection mechanism;

[0016] The second frame is also provided with a plurality of groups of second guide rollers.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The packaging film conveying device of the packaging machine of the present invention comprises an unwinding mechanism, a tensioning mechanism and an adsorption conveying mechanism, wherein the adsorption conveying mechanism comprises a coding module, an easy-tear cutter module, an anti-static module, an optical detection module, a film conveying module, a film cutting module and a film adsorption module which are sequentially arranged on the third frame. The adsorption conveying mechanism has the advantages of compact and reasonable structure, high integration and good compatibility. At the same time, the third frame can be lifted and lowered by a lifting drive mechanism to meet the conveying requirements of packaging films of different sizes and specifications, and has a wide range of applications and high flexibility of use. By arranging a tensioning mechanism on the input side of the coding module and arranging a film conveying module for providing conveying power on the output side of the optical detection module, appropriate tension can be applied to the packaging film, so that the process of the packaging film between the coding module and the optical detection module can be carried out stably and efficiently, thereby solving the technical problem in the prior art that the packaging film is prone to wrinkles or deviation from the conveying center during conveying, and effectively improving production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the packaging film conveying device of the packaging machine.

[0020] Figure 2 This is a schematic structural diagram of the packaging film conveying device of the packaging machine from a side view.

[0021] Figure 3 It is a structural diagram of the adsorption and conveying mechanism.

[0022] Figure 4 It is a structural diagram of the unwinding mechanism.

[0023] Figure 5 It is a structural diagram of the centering limit assembly.

[0024] Figure 6 It is a structural diagram of the tensioning mechanism.

[0025] Figure 7 This is a schematic diagram of the installation structure of the lower tensioning roller in the second frame.

[0026] Figure 8 This is a schematic diagram of the film conveying device of the packaging machine.

[0027] Legend:

[0028] 100, unwinding mechanism; 200, tensioning mechanism; 300, adsorption conveying mechanism;

[0029] 1. Third frame; 2. Lifting drive mechanism; 3. Coding module; 4. Easy-tear cutter module; 5. Anti-static module; 6. Light detection module; 7. Film conveying module; 701, Film feed roller; 8. Film cutting module; 801, Cutter roller; 9. Film adsorption module; 901, Vacuum conveyor belt; 10. Rack and pinion mechanism; 11. First handwheel; 12. Third guide roller; 13. First frame; 14. First unwinding roller; 15. Second unwinding roller; 16. Drive motor; 17. Centering Limiting assembly; 1701, first guide shaft; 1702, first movable seat; 1703, centering adjustment mechanism; 1704, first limiting shaft; 1705, second limiting shaft; 1706, first limiting groove; 1707, second limiting groove; 18, first guide roller; 19, second frame; 20, movable connecting seat; 2001, first movable seat; 2002, second movable seat; 21, upper tensioning roller; 22, lower tensioning roller; 23, sliding connection mechanism; 24, second guide roller. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 8As shown, the packaging film conveying device of the packaging machine of this embodiment includes an unwinding mechanism 100, a tensioning mechanism 200, and an adsorption conveying mechanism 300 arranged in sequence along the packaging film conveying direction, wherein the adsorption conveying mechanism 300 includes a third frame 1 and a lifting drive mechanism 2 for driving the third frame 1 to move up and down. The third frame 1 is sequentially provided with a coding module 3, an easy-tear cutter module 4, an anti-static module 5, an optical detection module 6, a film conveying module 7, a film cutting module 8, and a film adsorption module 9 along the packaging film conveying direction. The packaging film conveying device of the packaging machine includes an unwinding mechanism 100, a tensioning mechanism 200 and an adsorption conveying mechanism 300, wherein the adsorption conveying mechanism 300 includes a coding module 3 for printing marks such as production date and batch number, an easy-tear cutter module 4 for cutting out an easy-tear edge of the packaging bag, an anti-static module 5 for eliminating static electricity on the surface of the packaging film, an optical detection module 6 for detecting whether the packaging film is in place accurately, a film conveying module 7 for providing conveying power for the packaging film, a film cutting module 8 for cutting the packaging film, and a film adsorption module 9 for adsorbing the packaging film and conveying the packaging film to the paper towel pushing station for positioning. The adsorption conveying mechanism 300 has the advantages of compact and reasonable structure, high integration and good compatibility. At the same time, the third frame 1 can be raised and lowered by the lifting drive mechanism 2 to meet the conveying requirements of packaging films of different sizes and specifications. It has a wide range of applications and high flexibility. By arranging a tensioning mechanism 200 on the input side of the coding module 3 and a film conveying module 7 providing conveying power on the output side of the optical detection module 6, appropriate tension can be applied to the packaging film, so that the process of the packaging film between the coding module 3 and the optical detection module 6 can be carried out stably and efficiently, solving the technical problem in the prior art that the packaging film is prone to wrinkles or deviation from the conveying center during conveyance, and can effectively improve production quality.

[0032] It should be noted that, in this embodiment, the coding module 3, the easy-tear cutter module 4, the anti-static module 5, the optical detection module 6, the film conveying module 7, the film cutting module 8 and the film adsorption module 9 all use common components with corresponding functions on the market. Their specific structure and working principle belong to the existing technology and will not be repeated here.

[0033] Preferably, the film conveying module 7 includes a film feeding roller 701, the film cutting module 8 includes a cutter roller 801, and the film adsorption module 9 includes two groups of vacuum conveyor belts 901 arranged at intervals. The film feeding roller 701, the cutter roller 801 and the vacuum conveyor belt 901 are arranged in sequence from top to bottom. In this embodiment, a plurality of groups of grooves are arranged at intervals on the film feeding roller 701, so that the outer side surface of the film feeding roller 701 has a contact surface in contact with the surface of the packaging film and a space surface that does not contact the surface of the packaging film. During the transportation of the packaging film, the space surface does not contact the packaging film, so the packaging film at this location will not be subjected to force, thereby being able to achieve a slight left and right stretching effect on the packaging film at this location, so that the packaging film will not be offset or wrinkled; a plurality of groups of cutter mounting grooves are arranged at intervals on the cutting roller 801, and the cutter is fixed on the cutting roller 801 through the cutting grooves, and the packaging film can be cut by rotating the cutting roller 801; the vacuum conveyor belt 901 includes a conveyor belt, a vacuum generator located on the inner side of the conveyor belt, and a transmission roller for driving the conveyor belt to rotate. A plurality of groups of adsorption through holes arranged at intervals are opened on the conveyor belt, and the vacuum generator is connected to the adsorption through holes so that the packaging film can be adsorbed on the conveyor belt and move downward to the paper towel pushing station as the conveyor belt rotates.

[0034] Preferably, the easy-tear cutter module 4 is movably mounted on the third frame 1 via a rack-and-pinion mechanism 10. A first handwheel 11 for driving the gear to rotate is further provided on the outside of the third frame 1. In this embodiment, racks are fixedly mounted on both inner walls of the third frame 1, and gears are rotatably mounted on both sides of the easy-tear cutter module 4. The easy-tear cutter module 4 is movable on the third frame 1 by meshing the gears with the racks. Rotating the first handwheel 11 can drive the gears to rotate, thereby driving the easy-tear cutter module 4 to reciprocate on the third frame 1, allowing for flexible adjustment of the position of the easy-tear cutter module 4.

[0035] Preferably, the third frame 1 is further provided with a plurality of sets of third guide rollers 12. In this embodiment, the third guide rollers 12 are primarily used to connect the packaging film output by the tensioning mechanism 200 to the suction conveying mechanism 300, and to connect the packaging film between the various functional modules within the suction conveying mechanism 300. The number of sets of third guide rollers 12 and their installation positions can be adaptively adjusted according to actual production conditions.

[0036] Preferably, the unwinding mechanism 100 includes a first frame 13, a first unwinding roller 14, a second unwinding roller 15, and a drive motor 16 for driving the first unwinding roller 14 and the second unwinding roller 15 to rotate. The first frame 13 is provided with a centering limiter assembly 17 located between the first unwinding roller 14 and the second unwinding roller 15. In this embodiment, during operation, the packaging film roll is placed on the first unwinding roller 14 and the second unwinding roller 15, and the drive motor 16 drives the first unwinding roller 14 and the second unwinding roller 15 to rotate, thereby driving the packaging film roll to rotate. The centering limiter assembly 17 is provided in the gap between the first unwinding roller 14 and the second unwinding roller 15, which can align the center of the packaging film roll with the conveying center and limit the packaging film roll to prevent the packaging film roll from shifting left and right during the unwinding process.

[0037] Preferably, the centering and limiting assembly 17 includes a first guide shaft 1701, a first movable base 1702 movably disposed on the first guide shaft 1701, and a centering adjustment mechanism 1703 for driving the first movable base 1702 to reciprocate. The first movable base 1702 is provided with a first limiting shaft 1704 and a second limiting shaft 1705. In this embodiment, the centering and limiting assembly 17 includes the first movable base 1702, the first limiting shaft 1704, and the second limiting shaft 1705. The centering adjustment mechanism 1703 drives the first movable base 1702 to reciprocate on the first guide shaft 1701, thereby achieving precise position and motion control, facilitating alignment of the center of packaging film rolls of different widths with the conveying center. At the same time, the first limiting shaft 1704 and the second limiting shaft 1705 respectively abut against the ends of the packaging film roll, thereby limiting the packaging film roll.

[0038] Preferably, a first limiting groove 1706 and a second limiting groove 1707 are formed on the first movable seat 1702, and the first limiting shaft 1704 is movably connected to the first limiting groove 1706, and the second limiting shaft 1705 is movably connected to the second limiting groove 1707. In this embodiment, the first limiting shaft 1704 is connected to the first limiting groove 1706 by bolts and nuts, and the second limiting shaft 1705 is connected to the second limiting groove 1707 by bolts and nuts. According to the width of the packaging film roll to be limited, the position of the first limiting shaft 1704 in the first limiting groove 1706 and the position of the second limiting shaft 1705 in the second limiting groove 1707 can be adjusted, thereby flexibly adjusting the distance between the first limiting shaft 1704 and the second limiting shaft 1705, which is convenient and quick to operate and has strong versatility.

[0039] Preferably, the first frame 13 is further provided with a plurality of first guide rollers 18. In this embodiment, the first guide rollers 18 are primarily used to connect the unwound packaging film roll to the tensioning mechanism 200. The number of first guide rollers 18 and their installation positions can be adaptively adjusted according to actual production conditions.

[0040] Preferably, the tensioning mechanism 200 includes a second frame 19 and an articulating base 20 movably mounted on the second frame 19. Several sets of upper tensioning rollers 21 are rotatably mounted on the second frame 19, and several sets of lower tensioning rollers 22 are rotatably mounted on the articulating base 20. In this embodiment, the upper tensioning rollers 21 are mounted on the second frame 19, and the lower tensioning rollers 22 are integrally connected to the articulating base 20 and movably mounted within the second frame 19. During operation, the packaging film is wound between the upper tensioning rollers 21 and the lower tensioning rollers 22. The weight of the articulating base 20 and the lower tensioning rollers 22 exerts appropriate tension on the packaging film, enabling stable and efficient conveyance of the packaging film.

[0041] It should be noted that in this embodiment, the number of groups of upper tensioning rollers 21 is set to five groups, and the number of groups of lower tensioning rollers 22 is set to four groups. In other embodiments, the number of groups of upper tensioning rollers 21 and lower tensioning rollers 22 can also be adaptively adjusted according to actual production conditions, and is not limited to this embodiment.

[0042] Preferably, the movable connecting seat 20 is a split structure, including a first movable seat 2001 and a second movable seat 2002. The lower tensioning roller 22 is rotatably arranged between the first movable seat 2001 and the second movable seat 2002. The first movable seat 2001 and the second movable seat 2002 are respectively slidably connected to the two sides of the second frame 19 through a sliding connection mechanism 23. In this embodiment, the movable connecting seat 20 adopts the form of a split structure. In other embodiments, the movable connecting seat 20 can also adopt the form of an integrated structure. In this embodiment, the sliding connection mechanism 23 includes a second guide shaft fixedly arranged on the second frame 19, and a sliding bearing fixedly arranged on the first movable seat 2001 and the second movable seat 2002. The first movable seat 2001 and the second movable seat 2002 are movably arranged on the second guide shaft through the sliding bearing. It has the advantages of smooth and reliable operation, low friction coefficient, impact and vibration resistance, and no noise. In other embodiments, the sliding connection mechanism 23 can also adopt the form of a slider connected to a slide rail, which is not limited to this embodiment.

[0043] Preferably, the second frame 19 is further provided with a plurality of sets of second guide rollers 24. In this embodiment, the second guide rollers 24 are primarily used to connect the packaging film output by the unwinding mechanism 100 to the tensioning mechanism 200. The number of sets and installation positions of the second guide rollers 24 can be adaptively adjusted according to actual production conditions.

[0044] The above is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiment. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of the present invention should also be considered as the scope of protection of the present invention.

Claims

1. A packaging film conveying device for a packaging machine, characterized in that: The invention comprises an unwinding mechanism (100), a tensioning mechanism (200) and an adsorption conveying mechanism (300) which are sequentially arranged along the conveying direction of the packaging film, wherein the adsorption conveying mechanism (300) comprises a third frame (1) and a lifting drive mechanism (2) for driving the third frame (1) to move up and down, and the third frame (1) is sequentially provided with a coding module (3), an easy-tear cutter module (4), an anti-static module (5), an optical detection module (6), a film conveying module (7), a film cutting module (8) and a film adsorption module (9) along the conveying direction of the packaging film.

2. The packaging film conveying device of the packaging machine according to claim 1, characterized in that: The film conveying module (7) includes a film feeding roller (701), the film cutting module (8) includes a cutter roller (801), and the film adsorption module (9) includes two groups of vacuum conveying belts (901) arranged at intervals, wherein the film feeding roller (701), the cutter roller (801) and the vacuum conveying belt (901) are arranged in sequence from top to bottom.

3. The packaging film conveying device of the packaging machine according to claim 2, characterized in that: The easy-tear cutter module (4) is movably arranged on the third frame (1) via a gear rack mechanism (10), and a first hand wheel (11) for driving the gear to rotate is also arranged on the outside of the third frame (1).

4. The packaging film conveying device of the packaging machine according to claim 3, characterized in that: Several groups of third guide rollers (12) are also provided on the third frame (1).

5. The packaging film conveying device of the packaging machine according to claim 1, characterized in that: The unwinding mechanism (100) comprises a first frame (13), a first unwinding roller (14), a second unwinding roller (15), and a driving motor (16) for driving the first unwinding roller (14) and the second unwinding roller (15) to rotate. The first frame (13) is provided with a centering limit assembly (17) located between the first unwinding roller (14) and the second unwinding roller (15).

6. The packaging film conveying device of the packaging machine according to claim 5, characterized in that: The centering and limiting assembly (17) comprises a first guide shaft (1701), a first movable seat (1702) movably arranged on the first guide shaft (1701), and a centering adjustment mechanism (1703) for driving the first movable seat (1702) to move back and forth, and a first limiting shaft (1704) and a second limiting shaft (1705) are arranged on the first movable seat (1702).

7. The packaging film conveying device of the packaging machine according to claim 6, characterized in that: The first movable seat (1702) is provided with a first limiting groove (1706) and a second limiting groove (1707), the first limiting shaft (1704) is movably connected to the first limiting groove (1706), and the second limiting shaft (1705) is movably connected to the second limiting groove (1707).

8. The packaging film conveying device of the packaging machine according to claim 7, characterized in that: Several groups of first guide rollers (18) are also provided on the first frame (13).

9. The packaging film conveying device of the packaging machine according to claim 1, characterized in that: The tensioning mechanism (200) comprises a second frame (19) and a movable connecting seat (20) movably arranged on the second frame (19); a plurality of groups of upper tensioning rollers (21) are rotatably arranged on the second frame (19); and a plurality of groups of lower tensioning rollers (22) are rotatably arranged on the movable connecting seat (20).

10. The packaging film conveying device of the packaging machine according to claim 9, characterized in that: The movable connecting seat (20) is a split structure, comprising a first movable seat (2001) and a second movable seat (2002); the lower tensioning roller (22) is rotatably arranged between the first movable seat (2001) and the second movable seat (2002); the first movable seat (2001) and the second movable seat (2002) are respectively slidably connected to both sides of the second frame (19) via a sliding connection mechanism (23); Several groups of second guide rollers (24) are also provided on the second frame (19).

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