Packaging bag sealing device

Abstract

The utility model discloses a packaging bag sealing device which is provided with a bag body conveying belt and is characterized in that a glue spraying assembly and a pushing piece are sequentially arranged along the moving path of the bag body conveying belt, the pushing piece is connected with a first moving driving assembly, and the pushing piece and the moving driving assembly are arranged on a lifting seat. The lifting seat is connected with a lifting driving assembly, a crease plate is arranged on one side corresponding to the pushing piece, the crease plate is connected with a second moving driving assembly, and when the pushing piece ascends, the pushing piece is matched with the crease plate to achieve positioning and upward folding of the packaging bag opening extension portion. According to the utility model, the stability and reliability of the bag opening inward folding gluing sealing operation can be effectively improved.

Description

Technical Field

[0001] This utility model relates to bagging equipment, specifically to a packaging bag sealing device. Background Technology

[0002] The sealing device for packaging bags is an important component of bagging equipment, primarily used to seal the bag opening after materials have been filled. Currently, adhesive sealing is the most common method used in the market. Traditional sealing devices employ a guide plate to fold upwards the already glued outer edge of the bag opening, then control a pushing component to move horizontally, pushing the folded outer edge inwards and thus adhering it to the outer wall of the packaging bag to seal the opening. This adhesive sealing method has several drawbacks in practical use: because the guide plate is generally fixed, the guiding force on the outer edge of the bag opening is limited, resulting in limited upward folding effect. Furthermore, it is difficult to ensure that the creases on the outer edge remain in a straight line. For packaging bags made of harder materials, it is often necessary to press creases into the outer edge of the bag, making the bag processing operation relatively cumbersome. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by this utility model is to provide a packaging bag sealing device for solving the above-mentioned problems.

[0004] Therefore, this utility model is implemented using the following solution:

[0005] A packaging bag sealing device includes a bag conveyor belt, characterized in that: a glue spraying assembly and a pusher are sequentially arranged along the moving path of the bag conveyor belt, the pusher is connected to a first moving drive assembly, the pusher and the moving drive assembly are arranged on a lifting seat, the lifting seat is connected to the lifting drive assembly, a crease plate is arranged on one side corresponding to the pusher, the crease plate is connected to a second moving drive assembly, and when the pusher rises, it cooperates with the crease plate to achieve the positioning and upward folding of the outer extension of the bag opening.

[0006] The first moving drive assembly includes a first cylinder, the piston rod of the first cylinder being connected to a pusher, and the lifting drive assembly includes a second cylinder, the piston rod of the second cylinder being connected to a lifting seat.

[0007] The second moving drive assembly includes an obliquely positioned third cylinder, the piston rod of which is connected to the crease plate.

[0008] A pressure plate is also provided on the rear side of the pusher. The pressure plate is connected to the piston rod of the fourth cylinder. The pressure plate is used to press the outer extension that has been folded inward and glued to the opening end of the bag body.

[0009] The third cylinder is mounted on an adjusting seat, which is movably mounted on a crossbeam and locked by a locking assembly.

[0010] The above-mentioned packaging bag sealing device has a pusher mounted on a lifting seat. During sealing, the first cylinder can be controlled to move the crease plate to the outer extension of the packaging bag opening for positioning. Then, the pusher is controlled to rise and cooperate with the crease plate to achieve the positioning and folding of the outer extension. This can effectively ensure the accuracy of the folding of the outer extension and eliminate the need for pre-crease pressing on the outer extension, further improving the sealing quality of the packaging bag. Attached Figure Description

[0011] The present invention includes the following figures:

[0012] Figure 1 This is a view of the present invention as it is arranged in the whole machine;

[0013] Figure 2 for Figure 1 A magnified view of the area pointed to by A in the middle;

[0014] Figure 3 This is a structural diagram of the packaging bag. Detailed Implementation

[0015] As shown in the figure, the packaging bag sealing device disclosed in this utility model has a bag conveyor belt 12. A glue spraying component 1 and a pusher 3 are arranged sequentially along the moving path of the bag conveyor belt 12. The glue spraying component 1 is a common structure on the market, so it will not be described in detail. The pusher 3 is connected to the first moving drive component. The pusher 3 and the moving drive component are set on the lifting seat 5. The lifting seat 5 is connected to the lifting drive component. A crease plate 8 is arranged on one side corresponding to the pusher 3. The crease plate 8 is connected to the second moving drive component. When the pusher 3 rises, it cooperates with the crease plate 8 to realize the positioning and folding of the outer extension 13 of the bag opening of the packaging bag 14.

[0016] Furthermore, the first moving drive assembly includes a first cylinder 2, the piston rod of the first cylinder 2 being connected to the pushing member 3, and the lifting drive assembly includes a second cylinder 4, the piston rod of the second cylinder 4 being connected to the lifting seat 5. By controlling the first cylinder 2, the pushing member 3 can be moved horizontally, and by controlling the second cylinder 4, the lifting seat 5 and the pushing member 3 can be lifted.

[0017] Furthermore, the second moving drive assembly includes an obliquely positioned third cylinder, the piston rod of which is connected to the crease plate 8. By controlling the third cylinder, the crease plate 8 can be moved obliquely, and the obliquely moving crease plate 8 is more compatible with the pusher 3 to fold the extension portion 13 upwards.

[0018] Furthermore, a pressure plate 6 is provided on the rear side of the pusher 3. The pressure plate 6 is connected to the piston rod of the fourth cylinder 7. The pressure plate 6 is used to press the outer extension that has been folded inward and glued to the opening end of the bag body. With the above structure, the glued outer extension 13 can be pressed tightly to ensure the stability and firmness of the glued outer extension 13.

[0019] Furthermore, the third cylinder 9 is mounted on the adjusting seat 10, which is movably mounted on the crossbeam 11 and locked by a locking assembly. The locking assembly can be secured with fasteners. By adjusting the position of the adjusting seat 10, it can accommodate the outer extension of different sizes of different packaging bags.

[0020] In addition, it should be noted that, besides using a cylinder structure to drive the corresponding parts to perform actions, common linear drive mechanisms such as linear motors, motor-driven rack and pinion structures, and cam structures can also be used to achieve the same result.

[0021] The working principle of this utility model is as follows: The packaged bag after filling is conveyed by the bag body conveyor belt 12 and sent to the glue spraying assembly 1 to spray glue on the outer extension 13 of the packaged bag. Then, the bag body conveyor belt 12 drives the packaged bag to continue to be conveyed backward, so that the outer extension 13 is above the pusher 3. At this time, the crease plate 8 is controlled to move, pressing the connection end between the outer extension and the packaged bag 14, and the lifting seat 5 is controlled to drive the pusher 3 to rise, thereby driving the outer extension 13 to fold upward along the crease plate 8. Then, the crease plate 8 is reset and separated from the packaged bag, and the pusher 3 moves to push the outer extension 13 inward, so that the outer extension 13 is adhered to the outside of the packaged bag and thus completes the sealing. Subsequently, the packaged bag is sent to the bottom of the pressure plate 6, and the pressure plate 6 descends to press down on the outer extension 13 to ensure the firmness of the adhesion of the outer extension 13.

Claims

1. A packaging bag sealing apparatus having a bag body conveying belt (12), characterized by: A glue spraying assembly (1) and a pusher (3) are sequentially arranged along the moving path of the bag conveyor belt (12). The pusher (3) is connected to the first moving drive assembly. The pusher (3) and the moving drive assembly are arranged on the lifting seat (5). The lifting seat (5) is connected to the lifting drive assembly. A crease plate (8) is arranged on one side corresponding to the pusher (3). The crease plate (8) is connected to the second moving drive assembly. When the pusher (3) rises, it cooperates with the crease plate (8) to realize the positioning and folding of the outer extension (13) of the bag opening of the packaging bag (14).

2. A bag closure device according to claim 1, wherein: The first moving drive assembly includes a first cylinder (2), the piston rod of the first cylinder (2) is connected to the pusher (3), and the lifting drive assembly includes a second cylinder (4), the piston rod of the second cylinder (4) is connected to the lifting seat (5).

3. A bag closure device according to claim 1, wherein: The second moving drive assembly includes an obliquely arranged third cylinder (9), the piston rod of which is connected to the crease plate (8).

4. A bag closure device according to claim 1, wherein: A pressure plate (6) is also provided on the rear side of the pusher (3). The pressure plate (6) is connected to the piston rod of the fourth cylinder (7). The pressure plate (6) is used to press the outer extension that has been folded inward and glued to the opening end of the bag body.

5. A bag closure device according to claim 3, wherein: The third cylinder (9) is mounted on the adjusting seat (10), which is movably mounted on the crossbeam (11) and locked by a locking assembly.

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