Hot-pressing edge sealing device for food packaging bag

Abstract

The utility model discloses a food packaging bag hot-pressing edge sealing device which comprises a fixing base, two sets of fixing plates are fixedly connected to the inner wall of the bottom of the fixing base, a driving motor is fixedly installed on the side face of one set of fixing plates, and the output end of the driving motor is fixedly connected with a rotating rod through a coupler. A half gear is fixedly mounted on the side surface of the rotating rod, a reciprocating gear ring is arranged on the side, away from the driving motor, of the fixing plate and movably connected with the half gear through meshing of a rack, a top plate is fixedly connected to the top end of the reciprocating gear ring, and a plurality of small holes are formed in the top of the top plate; the top of the top plate is movably connected with a bag pressing frame through a small hole. According to the hot-pressing edge sealing device for the food packaging bag, on the basis of the prior art, a structure for fixing the packaging bag is additionally arranged, the situation that the packaging bag possibly deviates due to interaction force between hot sealing devices is avoided, and the hot-pressing edge sealing quality is improved to a certain degree.

Description

Technical Field

[0001] This utility model relates to the field of food packaging bag processing, specifically a hot-press sealing device for food packaging bags. Background Technology

[0002] Heat-sealed packaging bags are made by heating the sealing area of ​​a plastic film using specialized equipment (such as a hot air sealing machine or a high-frequency heat sealing machine) to make it reach a viscous state. Then, pressure is used to fuse the upper and lower layers of film together. After cooling, the film retains a certain strength, thus forming a packaging bag.

[0003] During the heat-sealing process, the packaging bag may shift to a certain extent due to the impact force when the heat-sealing device descends and the interaction force when it rises after heat sealing, which may lead to poor heat sealing effect. Utility Model Content

[0004] The purpose of this utility model is to provide a heat-sealing device for food packaging bags, so as to solve the problem mentioned in the background art that the packaging bag may be offset to a certain extent due to the impact force when the heat-sealing device descends and the interaction force when it rises after heat sealing, which may lead to poor heat sealing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A heat-sealing device for food packaging bags includes a fixed base. A fixed plate is fixedly connected to the inner wall of the bottom of the fixed base. There are two sets of fixed plates. A drive motor is fixedly installed on the side of one set of fixed plates. The output end of the drive motor is fixedly connected to a rotating rod via a coupling. A half-gear is fixedly installed on the side surface of the rotating rod. A reciprocating gear ring is provided on the side of the fixed plate away from the drive motor. The inner wall of the reciprocating gear ring meshes with the half-gear. A top plate is fixedly connected to the top of the reciprocating gear ring. Several small holes are opened on the top of the top plate. A bag-pressing frame is movably inserted into the top of the top plate through the small holes. A damping spring is fixedly connected to the bottom of the top plate. The bottom of the damping spring is fixedly connected to the bag-pressing frame. A heat-pressing block is fixedly connected to the bottom of the top plate.

[0007] As a further embodiment of this utility model: a limiting post is fixedly installed on the inner side of one of the fixed plates, and the number of the limiting posts is four. The limiting posts are in movable contact with the side of the reciprocating gear ring.

[0008] As a further embodiment of this utility model: a connecting plate is fixedly connected between two sets of the limiting posts, and limiting plates are fixedly connected to the sides of the other two sets of the limiting posts.

[0009] As a further improvement of this utility model: a belt limiting ring is fixedly installed on the side surface of the rotating rod, and a transmission belt is movably connected to the surface of the rotating rod through the belt limiting ring.

[0010] As a further improvement of this utility model: the side surface of the fixed base is movably connected to a driven rod via a bearing, and there are two sets of driven rods; the side surface of each set of driven rods is fixedly connected to a belt limiting ring.

[0011] As a further improvement of this utility model, the side surfaces of both sets of driven rods are movably connected to the transmission belt.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This food packaging bag heat sealing device adds a structure to fix the packaging bag on the basis of the existing heat sealing device. This avoids the packaging bag from shifting due to the impact force when the heat sealing device descends and the interaction force when it rises after heat sealing. This improves the quality of heat sealing to a certain extent. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a heat-sealing device for food packaging bags;

[0015] Figure 2 A partial structural diagram of a heat-sealing device for food packaging bags;

[0016] Figure 3 This is a partial cross-sectional view of a heat-sealing device for food packaging bags.

[0017] In the diagram: 1. Fixed base; 2. Fixed plate; 3. Drive motor; 4. Rotating rod; 5. Half gear; 6. Reciprocating gear ring; 7. Top plate; 8. Pressure bag frame; 9. Damping spring; 10. Hot pressing block; 11. Belt limit ring; 12. Transmission belt; 13. Driven rod; 14. Limiting post; 15. Limiting plate; 16. Connecting plate. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-3In this embodiment of the present invention, a hot-press sealing device for food packaging bags includes a fixed base 1. A fixed plate 2 is fixedly connected to the bottom inner wall of the fixed base 1. There are two sets of fixed plates 2. A drive motor 3 is fixedly installed on the side of one set of fixed plates 2. A rotating rod 4 is fixedly connected to the output end of the drive motor 3 through a coupling. A half gear 5 is fixedly installed on the side surface of the rotating rod 4. A reciprocating gear ring 6 is provided on the side of the fixed plate 2 away from the drive motor 3. The inner wall of the reciprocating gear ring 6 meshes with the half gear 5. A top plate 7 is fixedly connected to the top of the reciprocating gear ring 6. Several small holes are opened on the top of the top plate 7. A bag pressing frame 8 is movably inserted into the top of the top plate 7 through the small holes. A damping spring 9 is fixedly connected to the bottom of the top plate 7. The bottom of the damping spring 9 is fixedly connected to the bag pressing frame 8. A hot-pressing block 10 is fixedly connected to the bottom of the top plate 7.

[0020] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a set of four sets of limiting posts 14 are fixedly installed on the inner side of one set of fixing plates 2. The limiting posts 14 are in contact with the side of the reciprocating gear ring 6.

[0021] In this embodiment, as Figure 2 and Figure 3 As shown, a connecting plate 16 is fixedly connected between two sets of limiting posts 14, and limiting plates 15 are fixedly connected to the sides of the other two sets of limiting posts 14. The food packaging bag hot-press sealing device uses the limiting plates 15 and four sets of limiting posts 14 to limit the position of the reciprocating toothed ring 6, so that the reciprocating toothed ring 6 can only move up and down.

[0022] In this embodiment, as Figure 1 and Figure 3 As shown, a belt limit ring 11 is fixedly installed on the side surface of the rotating rod 4, and a transmission belt 12 is movably connected to the surface of the rotating rod 4 through the belt limit ring 11. The food packaging bag hot sealing device uses the transmission belt 12 to realize the loading and unloading of the packaging bag.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the side surface of the fixed base 1 is movably connected to the driven rod 13 via a bearing. There are two sets of driven rods 13. The side surfaces of both sets of driven rods 13 are fixedly connected to belt limit rings 11, and the side surfaces of both sets of driven rods 13 are movably connected to the transmission belt 12.

[0024] The working principle of this utility model is as follows:

[0025] In use, the rotating rod 4 drives the half gear 5 to rotate, which in turn drives the reciprocating gear ring 6 to move up and down. This, in turn, drives the top plate 7 to move up and down, and drives the hot pressing block 10 to move up and down in a regular manner, thus achieving hot pressing and sealing of the packaging bag. During this process, the top plate 7 drives the bag pressing frame 8 to fix and loosen the packaging bag that needs to be hot pressed and sealed. At this time, the damping spring 9 prevents the bag pressing frame 8 from being damaged by excessively fast descent or ascent. After the hot pressing is completed, the packaging bag is transported to the inside of the external receiving and collecting device via the conveyor belt 12.

[0026] 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 heat-sealing device for food packaging bags, comprising a fixed base (1), characterized in that: The bottom inner wall of the fixed base (1) is fixedly connected to a fixed plate (2). There are two sets of fixed plates (2). One set of fixed plates (2) has a drive motor (3) fixedly installed on the side. The output end of the drive motor (3) is fixedly connected to a rotating rod (4) through a coupling. A half gear (5) is fixedly installed on the side surface of the rotating rod (4). A reciprocating gear ring (6) is provided on the side of the fixed plate (2) away from the drive motor (3). The inner wall of the reciprocating gear ring (6) is meshed with the half gear (5). A top plate (7) is fixedly connected to the top of the reciprocating gear ring (6). Several small holes are opened on the top of the top plate (7). A pressure bag frame (8) is movably inserted into the top of the top plate (7) through the small holes. A damping spring (9) is fixedly connected to the bottom of the top plate (7). The bottom of the damping spring (9) is fixedly connected to the pressure bag frame (8). A hot pressing block (10) is fixedly connected to the bottom of the top plate (7).

2. The food packaging bag heat sealing device according to claim 1, characterized in that: One of the fixed plates (2) has a limit post (14) fixedly installed on its inner side. There are four sets of limit posts (14). The limit posts (14) are in active contact with the side of the reciprocating gear ring (6).

3. The food packaging bag heat sealing device according to claim 2, characterized in that: A connecting plate (16) is fixedly connected between two sets of the limiting posts (14), and a limiting plate (15) is fixedly connected to the side of the other two sets of the limiting posts (14).

4. The food packaging bag heat sealing device according to claim 1, characterized in that: A belt limiting ring (11) is fixedly installed on the side surface of the rotating rod (4), and a transmission belt (12) is movably connected to the surface of the rotating rod (4) through the belt limiting ring (11).

5. The food packaging bag heat sealing device according to claim 1, characterized in that: The side surface of the fixed base (1) is movably connected to a driven rod (13) via a bearing. There are two sets of driven rods (13), and belt limit rings (11) are fixedly connected to the side surfaces of both sets of driven rods (13).

6. The food packaging bag heat sealing device according to claim 5, characterized in that: The side surfaces of both sets of driven rods (13) are movably connected to the transmission belt (12).

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