Sealing device for popcorn packaging

Abstract

The utility model discloses a sealing device for popcorn packaging in the field of sealing devices, which comprises a mounting frame, a ball screw transmission mechanism and a center sealer, the center of the top of the mounting frame is fixedly connected with a first electric push rod through a bolt, and the output end of the first electric push rod is fixedly connected with a first connecting plate; four connecting columns are welded to the four corners of the bottom of the first connecting plate, a ball screw transmission mechanism is welded to the other ends of the connecting columns, two oppositely-moving sliding blocks are oppositely arranged in the ball screw transmission mechanism, and a T-shaped positioning supporting rod is welded to the center of the bottom of each oppositely-moving sliding block; second electric push rods are fixedly connected to the vertical faces of the two sides of the installation frame through bolts, second connecting plates are fixedly connected to the output ends of the second electric push rods, and a center sealer is arranged in the center of each second connecting plate. Working efficiency is high, and sealing quality is good.

Description

Technical Field

[0001] This utility model relates to the field of sealing devices, specifically a sealing device for popcorn packaging. Background Technology

[0002] Popcorn is a puffed snack made from corn kernels, ghee (or butter), sugar, and other ingredients, heated at high temperatures. It has a sweet taste and a crispy texture. The core principle is that the pressure generated by the vaporization of moisture inside the corn kernels due to heat causes the outer shell to burst and expand. Popcorn must be kept dry and sealed during storage and transportation. Popcorn is a widely popular snack.

[0003] Existing popcorn packaging commonly uses plastic cups for packaging and sealing. While this method is convenient for transportation and prevents popcorn damage, it is costly to process. Using traditional heat-sealed bags to seal popcorn is cheaper, but when the bags are placed horizontally, the popcorn can slide to the seal, causing incomplete sealing and packaging failure. Therefore, those skilled in the art have provided a sealing device for popcorn packaging to solve the problems mentioned in the background art. Utility Model Content

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

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

[0006] A sealing device for popcorn packaging includes a mounting frame, a ball screw drive mechanism, and a central sealer. The mounting frame has a "door" shaped structure. Third connecting plates are welded to both sides of the mounting frame. A first electric push rod is bolted to the top center of the mounting frame. The output end of the first electric push rod is fixedly connected to the first connecting plate. Four connecting posts are welded to the bottom four corners of the first connecting plate. A ball screw drive mechanism is welded to the other end of each connecting post. Two opposing sliding blocks are arranged inside the ball screw drive mechanism. A "T"-shaped positioning support rod is welded to the bottom center of each opposing sliding block. Second electric push rods are bolted to the vertical surfaces on both sides of the mounting frame. A second connecting plate is fixedly connected to the output end of each second electric push rod. A central sealer is located at the center of the second connecting plate. Two side sealers are rotatably connected to the sides of the central sealer. Telescopic sleeves are slidably connected to both sides of the second connecting plate. Springs are installed inside the telescopic sleeves, and the top of the telescopic sleeves always fits against the bottom of the two side sealers.

[0007] As a further embodiment of this utility model: the central sealing device is provided with right-angled trapezoidal rotating clearance grooves on both sides, and the upper and lower surfaces of the two sealing devices are provided with triangular clearance notches near the rotation axis, and the clearance notches are slidably connected to the rotating clearance grooves.

[0008] As a further embodiment of this utility model: the top of the central sealing device is connected to an isosceles trapezoidal central heating plate by bolts, and the top of the two side sealing devices is connected to right-angled trapezoidal side heating plates by bolts. After the two side heating plates are rotated, they fit against the hypotenuse of the central heating plate. The wiring of the two side heating plates passes through the two side sealing devices and is set inside the central sealing device.

[0009] As a further improvement of this utility model: the ball screw transmission mechanism is provided with a cross groove inside, and the opposing moving slider is slidably connected to the cross groove.

[0010] As a further improvement of this utility model: the positioning support rod is a hollow structure, and the horizontal part of the positioning support rod is connected to an external nitrogen pipeline.

[0011] As a further improvement of this utility model: two first guide rods are symmetrically arranged on the top of the first connecting plate, and two second guide rods are symmetrically arranged on the back of the second connecting plate. Both the first guide rods and the second guide rods are slidably connected to the mounting frame.

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

[0013] 1. In this utility model, when the upright popcorn packaging bag is transported to the underside of the installation frame by the conveyor belt, the first electric push rod drives the ball screw transmission mechanism to move downward, causing the two positioning support rods at the top of the two opposing sliding blocks that are attached together to insert into the bag opening. Next, the motor of the ball screw transmission mechanism works, causing the two opposing sliding blocks to move in opposite directions. The two positioning support rods stretch and open the bag opening, preventing the popcorn from being stuck in the bag opening seal position and causing seal failure. At the same time, the bag opening position is positioned to facilitate the next step of heat sealing, making it convenient to use.

[0014] 2. In this utility model, when the positioning support rod has positioned the opening of the packaging bag, the second electric push rods on both sides of the mounting frame work to make the two central sealing devices move towards each other. The central heating plates on both sides fit together to seal the middle of the packaging bag. At this time, the sealing devices on both sides rotate with the central sealing device under the action of the positioning support rod. Then, the first electric push rod works to pull the positioning support rod out of both ends of the opening of the packaging bag. The sealing devices on both sides rotate with the central sealing device under the elastic action of the spring until the working surfaces of the heating plates on both sides and the central heating plate overlap. The packaging bag is sealed on both sides without interfering with the operation of the positioning support rod. It is convenient to use and has a good sealing effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the ball screw transmission mechanism in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the central sealing device in this utility model;

[0018] Figure 4 This is a front view schematic diagram of the structure of the central sealing device in this utility model;

[0019] Figure 5 This is a structural schematic diagram of cross section AA in this utility model.

[0020] In the diagram: 1. Mounting frame; 2. Third connecting plate; 3. First electric actuator; 4. Ball screw transmission mechanism; 5. Connecting column; 6. First connecting plate; 7. First guide rod; 8. Cross groove; 9. Opposite moving slider; 10. Positioning support rod; 11. Second electric actuator; 12. Second guide rod; 13. Second connecting plate; 14. Center sealer; 15. Side sealers; 16. Center heating plate; 17. Side heating plates; 18. Telescopic sleeve; 19. Spring; 20. Rotary clearance groove; 21. Clearance notch. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-5In this embodiment of the utility model, the sealing device for popcorn packaging includes a mounting frame 1, a ball screw transmission mechanism 4, and a central sealer 14. The mounting frame 1 has a "door" shaped structure. Third connecting plates 2 are welded to both sides of the mounting frame 1. A first electric push rod 3 is bolted to the top center of the mounting frame 1. A first connecting plate 6 is fixedly connected to the output end of the first electric push rod 3. Four connecting posts 5 are welded to the four corners of the bottom of the first connecting plate 6. A ball screw transmission mechanism 4 is welded to the other end of each connecting post 5. Two opposing sliding blocks 9 are arranged inside the ball screw transmission mechanism 4. A "T"-shaped positioning support rod 10 is welded to the bottom center of each opposing sliding block 9. The vertical surfaces on both sides of the mounting frame 1 are bolted together. A second electric push rod 11 is connected, and a second connecting plate 13 is fixedly connected to the output end of the second electric push rod 11. A central sealing device 14 is set at the center of the second connecting plate 13. Two side sealing devices 15 are rotatably connected to both sides of the central sealing device 14. Telescopic sleeves 18 are slidably connected to both sides of the second connecting plate 13. A spring 19 is set inside the telescopic sleeve 18. The top of the telescopic sleeve 18 is always in contact with the bottom of the two side sealing devices 15. The positioning support rod 10 is used to stretch and support the opening of the vertically placed popcorn bag, so that the opening of the popcorn bag is fixed between the two central sealing devices 14, preventing popcorn particles from being stuck at the sealing position and affecting the sealing quality, thus improving the sealing quality. Using packaging bags instead of plastic cups for packaging saves costs and is more economical.

[0023] The central sealing device 14 is provided with right-angled trapezoidal rotating clearance grooves 20 on both sides, and the upper and lower surfaces of the two sealing devices 15 near the rotation axis are provided with triangular clearance notches 21. The clearance notches 21 are slidably connected to the rotating clearance grooves 20 to avoid interference between the two sealing devices 15 and the central sealing device 14 when rotating.

[0024] The top of the central sealing device 14 is bolted to an isosceles trapezoidal central heating plate 16, and the top of the two side sealing devices 15 is bolted to right-angled trapezoidal side heating plates 17. After the two side heating plates 17 are rotated, they fit against the hypotenuse of the central heating plate 16. The wiring of the two side heating plates 17 passes through the two side sealing devices 15 and is set inside the central sealing device 14. The central heating plate 16 and the two side heating plates 17 work together to ensure that the sealed bag is heat-sealed without leaks and improve the sealing quality.

[0025] The ball screw transmission mechanism 4 is provided with a cross groove 8 inside, and the opposing sliding slider 9 is slidably connected to the cross groove 8 to increase the sliding stability of the opposing sliding slider 9.

[0026] Among them, the positioning support rod 10 is a hollow structure. The horizontal part of the positioning support rod 10 is connected to an external nitrogen pipe to replace the inside of the packaging bag with nitrogen before sealing, thereby increasing the shelf life of the popcorn.

[0027] Two first guide rods 7 are symmetrically arranged on the top of the first connecting plate 6, and two second guide rods 12 are symmetrically arranged on the back of the second connecting plate 13. Both the first guide rods 7 and the second guide rods 12 are slidably connected to the mounting frame 1 to improve the stability of the first connecting plate 6 and the second connecting plate 13 during extension and retraction.

[0028] The working principle of this utility model is as follows: The third connecting plates 2 on both sides of the mounting frame 1 are bolted to the top of the conveyor belt. After the packaging bag is filled with popcorn kernels, it can stand upright on the conveyor belt. When the upright packaging bag moves along the conveyor belt to directly below the mounting frame 1, the first electric push rod 3 drives the ball screw transmission mechanism 4 to move downward. The first guide rod 7 is slidably connected to the mounting frame 1. The two positioning support rods 10 at the top of the two opposing sliding blocks 9 are inserted into the bag opening. Next, the motor of the ball screw transmission mechanism 4 works, causing the two opposing sliding blocks 9 to move in opposite directions. The two positioning support rods 10 stretch and open the bag opening to prevent popcorn kernels from getting stuck in the bag opening seal position, causing seal failure. At the same time, the bag opening position is positioned. External nitrogen gas is introduced through the positioning support rods. The hollow structure of the positioning support rod 10 replaces the gas inside the packaging bag, improving the preservation time of the popcorn. Then, the two second electric push rods 11 work, pushing the two central sealers 14 towards each other until the central heating plates 16 on both sides are in contact, jointly sealing the middle of the packaging bag. At this time, the two side sealers 15 rotate with the central sealer 14 under the action of the positioning support rod 10, the spring 19 is compressed, and the telescopic sleeve 18 slides in connection with the second connecting plate 13. After that, the first electric push rod 3 works to pull the positioning support rod 10 out of both ends of the packaging bag opening. The two side sealers 15 are reset under the elastic action of the spring 19, and the two side heating plates 17 overlap with the central heating plate 16, sealing both sides of the sealed bag. This does not interfere with the operation of the positioning support rod 10 while ensuring the sealing quality and is convenient to use.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sealing device for popcorn packaging, comprising a mounting frame (1), a ball screw transmission mechanism (4), and a central sealer (14), characterized in that: The mounting frame (1) is a "door" shaped structure. A third connecting plate (2) is welded to both sides of the mounting frame (1). A first electric actuator (3) is fixedly connected to the top center of the mounting frame (1) by bolts. A first connecting plate (6) is fixedly connected to the output end of the first electric actuator (3). Four connecting columns (5) are welded to the bottom four corners of the first connecting plate (6). A ball screw transmission mechanism (4) is welded to the other end of each connecting column (5). Two opposing sliding blocks (9) are arranged inside the ball screw transmission mechanism (4). A "T"-shaped... The positioning support rod (10) is fixedly connected to the vertical surfaces on both sides of the mounting frame (1) by bolts. The output end of the second electric push rod (11) is fixedly connected to the second connecting plate (13). The center of the second connecting plate (13) is provided with a center sealer (14). The center sealer (14) is rotatably connected to the two sides of the center sealer (14). The two sides of the second connecting plate (13) are slidably connected to the telescopic sleeve (18). The telescopic sleeve (18) is provided with a spring (19). The top of the telescopic sleeve (18) is always attached to the bottom of the two sides of the sealer (15).

2. The sealing device for popcorn packaging according to claim 1, characterized in that: The central sealing device (14) has right-angled trapezoidal rotating clearance grooves (20) on both sides, and the upper and lower surfaces of the two side sealing devices (15) are provided with triangular clearance notches (21) near the rotation axis. The clearance notches (21) are slidably connected to the rotating clearance grooves (20).

3. The sealing device for popcorn packaging according to claim 1, characterized in that: The top of the central sealing device (14) is connected to an isosceles trapezoidal central heating plate (16) by bolts, and the top of the two side sealing devices (15) is connected to right-angled trapezoidal side heating plates (17) by bolts. After the two side heating plates (17) are rotated, they fit against the hypotenuse of the central heating plate (16). The lines of the two side heating plates (17) pass through the two side sealing devices (15) and are set inside the central sealing device (14).

4. The sealing device for popcorn packaging according to claim 1, characterized in that: The ball screw transmission mechanism (4) is provided with a cross groove (8) inside, and the opposing moving slider (9) is slidably connected to the cross groove (8).

5. The sealing device for popcorn packaging according to claim 1, characterized in that: The positioning support rod (10) is a hollow structure, and the horizontal part of the positioning support rod (10) is connected to an external nitrogen pipeline.

6. The sealing device for popcorn packaging according to claim 1, characterized in that: Two first guide rods (7) are symmetrically arranged on the top of the first connecting plate (6), and two second guide rods (12) are symmetrically arranged on the back of the second connecting plate (13). The first guide rods (7) and the second guide rods (12) are slidably connected to the mounting frame (1).

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