A vertical packaging machine with an improved sealing device for large and small packages to prevent breakage.

Abstract

This utility model discloses a device for improving the sealing of large and small packages of products in a vertical packaging machine to prevent package breakage. It includes two movable sealing knife mounting frames and a follow-up extrusion mechanism. The two movable sealing knife mounting frames are symmetrically arranged. The follow-up extrusion mechanism includes a track groove frame, an extrusion movable frame, track rollers, and extrusion rollers. The track groove frame has a track groove. The upper end of the extrusion movable frame has a track roller, which is located within the track groove. The lower end of the extrusion movable frame has an extrusion roller. A swing fulcrum shaft frame is located below the movable sealing knife mounting frame, and the swing fulcrum shaft frame is rotatably connected to the extrusion movable frame via a rotating shaft. When sealing the large package, the follow-up extrusion mechanism simultaneously extrudes the individual small packages of pipe fittings inside the large package, allowing them to detach from the seal of the large package, preventing overlapping seals and thus avoiding package breakage.

Description

Technical Field

[0001] This utility model relates to the field of pipe packaging technology, and in particular to a device for improving the sealing of large and small packages of products in a vertical packaging machine to prevent package breakage. Background Technology

[0002] In the automated large and small package production process of PPR pipe fittings, every 5 packages of pipe fittings with individual small packaging bags need to be placed into the large packaging bag before sealing. Because the individual small packaging bags are stacked randomly inside the large packaging bag, there are instances where the stacked individual small packaging bags end up at the sealing point of the large packaging bag. This results in a four-layer seal, adding two layers of film to the original two layers of individual packaging bags. Under these circumstances, sealing with a sealing knife can easily lead to insecure sealing, resulting in broken packages and severely affecting the quality of the packaged product. Utility Model Content

[0003] To address the aforementioned problems, this utility model aims to provide a device for improving the sealing of large and small packages in a vertical packaging machine to prevent breakage, thereby solving the problem of loose sealing of large packaging bags leading to breakage.

[0004] The technical problem solved by this utility model can be achieved by the following technical solution: a vertical packaging machine product sealing improvement and anti-breakage device for large and small packages, including two sealing knife movable mounting frames and a follow-up extrusion mechanism. The two sealing knife movable mounting frames are symmetrically arranged. The follow-up extrusion mechanism includes a track groove frame, an extrusion movable frame, track rollers and extrusion rollers. The track groove frame has a track groove. The upper end of the extrusion movable frame is provided with a track roller. The track roller is located in the track groove and can roll in the track groove. The lower end of the extrusion movable frame is provided with an extrusion roller. A swing fulcrum shaft frame is provided below the sealing knife movable mounting frame. The swing fulcrum shaft frame and the extrusion movable frame are rotatably connected by a rotating shaft.

[0005] The sealing knife is fixed on the movable mounting bracket, which is equipped with a linear bearing. A movable guide shaft passes through the linear bearing, with one end fixed to the overall mounting support beam and the other end fixed to the overall mounting plate. One side of the track slot is fixed to the overall mounting support beam, and the other side is fixed to the overall mounting plate.

[0006] A rotating shaft is welded to the inner side of the extrusion frame. The rotating shaft of the extrusion frame passes through a hole on the swing fulcrum frame and is connected by a nut. The extrusion frame can swing on the swing fulcrum frame via the rotating shaft.

[0007] The track roller is equipped with a rotating shaft, which passes through the hole of the extrusion frame and is limited by a self-locking nut.

[0008] The extrusion roller is assembled from three nylon wheels and a rotating shaft. The rotating shaft is set on the extrusion frame. The middle nylon wheel is sleeved on the rotating shaft and located inside the two extrusion frames. The other two nylon wheels are sleeved on the rotating shaft and located at the outer ends of the extrusion frames, respectively, and are connected and limited by a screw.

[0009] Compared with the prior art, this utility model has the following advantages: When sealing the large package bag, the follow-up squeezing mechanism simultaneously squeezes the individual small packages of pipe fittings inside the large package bag downwards, so that the individual small packages of pipe fittings can be separated from the sealing point of the large package bag, avoiding overlapping of the seals and resulting in incomplete sealing, thus preventing the package from breaking. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0011] Figure 2 This is a schematic diagram of the overall structure of the device of this utility model;

[0012] Figure 3 This is a side view of the overall structure of the device of this utility model;

[0013] Figure 4 This is a schematic diagram of the follow-up extrusion mechanism of the device of this utility model;

[0014] The component numbers in the attached diagram are as follows: 1 is the sealing knife movable mounting bracket, 2 is the movable guide shaft, 3 is the overall mounting plate, 4 is the sealing knife, 5 is the track groove frame, 6 is the overall mounting support beam, 7 is the pipe fitting product, 8 is the individual small packaging bag for the pipe fitting, 9 is the large packaging bag for the pipe fitting, 10 is the swing fulcrum shaft frame, 11 is the track roller, 12 is the extrusion movable frame, and 13 is the extrusion roller. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0016] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] Combined with appendix Figures 1 to 4 As shown, this embodiment discloses a device for improving the sealing of large and small packages and preventing package breakage in a vertical packaging machine. It includes two movable sealing knife mounting frames 1, a movable guide shaft 2, a sealing knife 4, and a follow-up extrusion mechanism. The two movable sealing knife mounting frames 1 are symmetrically arranged. The follow-up extrusion mechanism includes a track groove frame 5, an extrusion movable frame 12, a track rolling wheel 11, and an extrusion roller 13. The track groove frame 5 has a track groove. The upper end of the extrusion movable frame 12 is provided with a track rolling wheel 11, which is located in the track groove and can roll in the track groove. The lower end of the extrusion movable frame 12 is provided with an extrusion roller 13. A swing fulcrum shaft frame 10 is provided below the movable sealing knife mounting frame 1. The swing fulcrum shaft frame 10 is rotatably connected to the extrusion movable frame 12 through a rotating shaft.

[0018] A sealing knife 4 is fixed on the movable mounting frame 1. The sealing knife 4 is used to heat and seal the packaging bag. The sealing knife 4 is connected and fixed to the movable mounting frame 1 by four hexagonal screws. A linear bearing is provided on the movable mounting frame 1, and a movable guide shaft 2 passes through the linear bearing. Two movable guide shafts 2 are located between the overall mounting plate 3 and the overall mounting support beam 6. One end of the movable guide shaft 2 is fixed to the overall mounting support beam 6, and the other end is fixed to the overall mounting plate 3. The movable mounting frame 1 can move freely on the movable guide shafts 2 via the linear bearing. The movable mounting frame 1 is a component of the vertical packaging machine itself and is driven by the machine's own drive mechanism. The overall mounting plate 3 and the overall mounting support beam 6 are both mounted on the vertical packaging machine and are components of the vertical packaging machine itself.

[0019] One side of the track slot frame 5 is fixed to the overall mounting support beam 6, and the other side of the track slot frame 5 is fixed to the overall mounting plate 3. The track slot frame 5 and the overall mounting support beam 6 are connected and fixed by two hexagon socket head cap screws, and the track slot frame 5 and the overall mounting plate 3 are connected and fixed by two hexagon socket head cap screws.

[0020] The swing fulcrum shaft 10 and the sealing knife movable mounting bracket 1 are connected and fixed by two hexagon socket screws. A rotating shaft is welded to the inner side of the extrusion movable bracket 12. The rotating shaft of the extrusion movable bracket 12 passes through the hole on the swing fulcrum shaft 10 and is limited by a nut. The extrusion movable bracket 12 can swing on the swing fulcrum shaft 10 through the rotating shaft.

[0021] The track roller 11 is equipped with a rotating shaft, which passes through the hole in the extrusion frame 12 and is connected by a self-locking nut. The outer end of the track groove on the track frame 5 is horizontal, and the inner end is inclined upward. When the track roller 11 moves inward along the track groove on the track frame 5, the extrusion roller 13 moves downward, squeezing the smaller tube packages inside the larger tube package downward, allowing the individual small tube packages to detach from the seal of the larger package. The track roller 11 is made of alloy wheels, which are wear-resistant and durable, increasing the stability of the device's guidance.

[0022] The extrusion roller 13 is assembled from three nylon wheels and a rotating shaft. The rotating shaft is mounted on the extrusion frame 12. The middle nylon wheel is fitted onto the rotating shaft and positioned inside the two extrusion frames. The other two nylon wheels are fitted onto the rotating shaft and positioned at both ends of the outer side of the extrusion frame 12, respectively, and are connected and limited by a single hexagonal screw. Nylon material is relatively soft and has good wear resistance, ensuring that the surface of the packaging bag will not be scratched when extruding large packages of pipe fittings, and its durability ensures long-term stable use.

[0023] The specific implementation process of this utility model device in the production process is as follows: After the individual small packaging bags 8 containing the pipe fitting products 7 are placed into the large packaging bag 9, the vertical packaging machine drives the two sealing knife movable mounting frames 1 and the upper sealing knife 4 to move inward, so that the sealing knives 4 on both sides can press together to seal the upper opening of the large packaging bag 12. Before the two sealing knives 4 close the seal, the swing fulcrum shaft frame 10 on the sealing knife movable mounting frame 1 moves accordingly. At the same time, the swing fulcrum shaft frame 10 drives the extrusion movable frame 12 to move. Under the joint guidance of the track groove on the track groove frame 5 and the track rolling wheel 11, the extrusion movable frame 12 drives the extrusion roller 13 to move downward. Before the sealing knives 4 on both sides close to seal, the extrusion movable frames 12 on both sides have respectively driven the extrusion rollers 13 on both sides of the packaging bag to close inward and move downward synchronously, squeezing the pipe fitting products in the large packaging bag downward so that the individual small packaging bags 8 of the pipe fittings are removed from the sealing position of the sealing knives 4. Then, the sealing blades 4 on both sides of the large packaging bag close to seal the large packaging bag 9. Finally, the sealing blade movable mounting bracket 1 drives the sealing blade 4 to return to its original position. The squeezing movable bracket 12, driven by the swing fulcrum shaft bracket 10, returns to its original position along the track groove via the track roller 11. This process is repeated until the device completes its operation.

[0024] When sealing the large packaging bag, the present invention uses a follow-up squeezing mechanism to simultaneously squeeze the individual small packaging bags 8 of the pipe fittings inside the large packaging bag 9 downwards, so that the individual small packaging bags 8 can be separated from the sealing point of the large packaging bag, avoiding overlapping of the seals and resulting in incomplete sealing, preventing the package from breaking, and ensuring the quality of the packaged product.

[0025] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A sealing and anti-breakage device for large and small packages of a vertical packaging machine, comprising two movable sealing blade mounting frames (1) and a follow-up extrusion mechanism, wherein the two movable sealing blade mounting frames (1) are symmetrically arranged, characterized in that: The follow-up extrusion mechanism includes a track groove frame (5), an extrusion movable frame (12), a track roller (11), and an extrusion roller (13). The track groove frame (5) has a track groove. The upper end of the extrusion movable frame (12) is provided with a track roller (11). The track roller (11) is located in the track groove and can roll in the track groove. The lower end of the extrusion movable frame (12) is provided with an extrusion roller (13). The lower part of the sealing knife movable mounting frame (1) is provided with a swing fulcrum shaft frame (10). The swing fulcrum shaft frame (10) and the extrusion movable frame (12) are rotatably connected by a rotating shaft.

2. The sealing and anti-breakage device for large and small packages of products in a vertical packaging machine according to claim 1, characterized in that: The sealing knife movable mounting frame (1) is fixed with a sealing knife (4), and a linear bearing is provided on the sealing knife movable mounting frame (1). A movable guide shaft (2) is passed through the linear bearing. One end of the movable guide shaft (2) is fixed on the overall mounting support beam (6), and the other end of the movable guide shaft (2) is fixed on the overall mounting plate (3).

3. The sealing and anti-breakage device for large and small packages of products in a vertical packaging machine according to claim 2, characterized in that: One side of the track frame (5) is fixed to the overall installation support beam (6), and the other side of the track frame (5) is fixed to the overall installation plate (3).

4. The sealing and anti-breakage device for large and small packages of products in a vertical packaging machine according to claim 1, characterized in that: A rotating shaft is welded to the inner side of the extrusion frame (12). The rotating shaft of the extrusion frame (12) passes through the hole on the swing fulcrum shaft frame (10) and is connected by a nut. The extrusion frame (12) can swing on the swing fulcrum shaft frame (10) through the rotating shaft.

5. The sealing and anti-breakage device for large and small packages of products in a vertical packaging machine according to claim 1, characterized in that: The track roller (11) is provided with a rotating shaft, which is inserted into the hole of the extrusion frame (12) and connected by a self-locking nut.

6. The sealing and anti-breakage device for large and small packages of products in a vertical packaging machine according to claim 1, characterized in that: The extrusion roller (13) is assembled from three nylon wheels and a rotating shaft. The rotating shaft is set on the extrusion frame (12). The middle nylon wheel is sleeved on the rotating shaft and is located inside the two extrusion frames. The other two nylon wheels are sleeved on the rotating shaft and are located at the outer ends of the extrusion frame (12) respectively and are connected and limited by a screw.

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