Plastic package sealing device

Abstract

The utility model discloses a plastic package sealing device, which relates to the technical field of sealing devices and comprises a sealing table, a connecting frame is fixedly connected to the top of the sealing table, and a position calibration mechanism is arranged on one side of the connecting frame. An electric cylinder drives a connecting rod to move downwards, so that L-shaped plates are located on the two sides of a packaging bag, a second electric push rod drives the L-shaped plates to move, the packaging bag is pushed to move through the L-shaped plates, position calibration of the packaging bag is achieved, the packaging bag is pressed and limited through a limiting piece, position deviation of the packaging bag during sealing is reduced, alignment precision during hot pressing is guaranteed, and deviation or incomplete sealing is avoided. The position, above the conveying rollers, of the packaging bag is limited through the guide frame, the fourth gear drives the third gear to rotate, the using direction of the draught fan can be adjusted, and cooling of the sealing position of the packaging bag can be accelerated through the draught fan and the cooling box.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, and in particular to a plastic packaging sealing device. Background Technology

[0002] Plastic packaging sealing devices are specialized equipment used to seal the openings of plastic packaging bags (such as food bags, daily necessities bags, etc.). They are widely used in the packaging process of the food, pharmaceutical, chemical, and daily necessities industries, ensuring sealing through heat-press sealing, ultrasonic sealing, and pulse sealing methods.

[0003] For example, Chinese patent CN220411098U discloses a plastic packaging sealing device, including a worktable. The upper end face of the worktable has a sinking groove, and a conveyor belt is rotatably arranged in the sinking groove. Two guide plates are symmetrically and movably arranged on the upper end face of the worktable. Multiple rollers are rotatably arranged on the opposite side of the two guide plates. The end of each guide plate is arc-shaped. The two guide plates are located on both sides of the conveyor belt. Two adjustment components are provided on the worktable to cooperate with the corresponding guide plates. Two heat-press sealing plates are symmetrically and movably arranged on the worktable.

[0004] In the aforementioned patent, although the problem of needing operators to hold both ends of the plastic packaging during sealing is solved by using guide plates and rollers, the conveyor belt rotates intermittently. If the mechanical transmission components wear out or the control program has errors, it can easily lead to inaccurate delivery of the plastic packaging, affecting the alignment accuracy of the heat-sealing plate, thus causing the seal to be offset or incomplete. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the existing technology where the conveyor belt rotates intermittently. If the mechanical transmission components wear or the control program is faulty, it can easily lead to inaccurate delivery of plastic packaging, affecting the alignment accuracy of the heat-sealing plate and causing sealing deviation or incompleteness. Therefore, this invention proposes a plastic packaging sealing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a plastic packaging sealing device, including a sealing platform, a connecting frame fixedly connected to the top of the sealing platform, a position calibration mechanism provided on one side of the connecting frame, the position calibration mechanism including a limiting member, a connecting rod and an L-shaped plate, an electric push rod one fixedly connected to the top of the limiting member, an installation frame fixedly connected to the top of the electric push rod one, one side of the installation frame fixedly connected to the connecting frame, an electric cylinder fixedly connected to the bottom of the installation frame, the bottom of the electric cylinder fixedly connected to the connecting rod, an electric push rod two embedded inside the connecting rod, one end of the electric push rod two fixedly connected to the L-shaped plate.

[0007] Preferably, a hydraulic cylinder is fixedly connected to the top of the mounting frame, and a sealing assembly is fixedly connected to the bottom of the hydraulic cylinder, with the sealing assembly and the mounting frame being slidably connected.

[0008] Preferably, a sealing mold is fixedly connected to the top of the sealing platform, a conveying roller is rotatably connected to one side of the sealing mold, a support frame is rotatably connected to the other side of the conveying roller, and the bottom of the support frame is fixedly connected to the sealing platform.

[0009] Preferably, a motor is fitted into one side of the support frame, and a gear is fixedly connected to one end of the output shaft of the motor, with the gear being rotatably connected to the support frame.

[0010] Preferably, gear one is meshed at the top of gear two, gear one is rotatably connected to the support frame, gear one is meshed at the top of gear one, a guide frame is fixedly connected to one end of the rack, and the bottom of the guide frame is slidably connected to the support frame.

[0011] Preferably, a cooling box is fixedly connected to the top of the sealing platform, a heat dissipation fin is fixedly connected to one side of the cooling box, and a cooling pipe is embedded inside the cooling box, with one end of the cooling pipe penetrating through the side wall of the cooling box.

[0012] Preferably, a fan is rotatably connected to the top of the cooling box, a gear three is fixedly connected to the bottom of the fan, a gear four meshes with one side of the gear three, the output shaft of a motor two is fixedly connected to the bottom of the gear four, the bottom of the motor two is fixedly connected to the sealing platform, and both gear three and gear four are rotatably connected to the cooling box.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the bottom of the electric push rod one is fixedly connected to the limiting member, the L-shaped plate is fixedly connected to the electric push rod two, the electric cylinder drives the connecting rod to move down, so that the L-shaped plate is located on both sides of the packaging bag, the electric push rod two drives the L-shaped plate to move, and the L-shaped plate pushes the packaging bag to move, thereby realizing the position calibration of the packaging bag. The limiting member limits the pressing of the packaging bag, reduces the position deviation when sealing the packaging bag, ensures the alignment accuracy during hot pressing, avoids sealing offset or incompleteness, and thus ensures the sealing effect of the packaging bag.

[0015] 2. In this utility model, the guide frame and the support frame are slidably connected, the gear three is fixedly connected to the fan, the gear two drives the gear one to rotate, the gear one drives the rack and the guide frame to move, changing the position of the guide frame. The guide frame limits the position of the packaging bag above the conveyor roller. The gear four drives the gear three to rotate, which can adjust the direction of the fan. The fan and the cooling box can accelerate the cooling of the sealing area of ​​the packaging bag. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a plastic packaging sealing device;

[0017] Figure 2 This utility model provides a schematic diagram of the rack and pinion structure installation for a plastic packaging sealing device;

[0018] Figure 3 This utility model provides a schematic diagram of the meshing structure of gear three and gear four in a plastic packaging sealing device;

[0019] Figure 4 This utility model provides a schematic diagram of the connecting rod structure installation for a plastic packaging sealing device.

[0020] Legend: 1. Connecting frame; 2. Cooling pipe; 3. Cooling box; 4. Conveyor roller; 5. Motor 1; 6. Support frame; 7. Fan; 8. Sealing table; 9. Gear 1; 10. Gear 2; 11. Rack; 12. Guide frame; 13. Gear 3; 14. Gear 4; 15. Motor 2; 16. Sealing mold; 17. Limiting component; 18. Electric push rod 1; 19. Mounting frame; 20. Hydraulic cylinder; 21. Electric push rod 2; 22. Electric cylinder; 23. Connecting rod; 24. L-shaped plate; 25. Sealing assembly. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: Refer to Figures 1-4 As shown: A plastic packaging sealing device includes a sealing platform 8, a connecting frame 1 fixedly connected to the top of the sealing platform 8, a position calibration mechanism provided on one side of the connecting frame 1, the position calibration mechanism including a limiting member 17, a connecting rod 23 and an L-shaped plate 24, an electric push rod 18 fixedly connected to the top of the limiting member 17, a mounting frame 19 fixedly connected to the top of the electric push rod 18, one side of the mounting frame 19 fixedly connected to the connecting frame 1, and an electric cylinder 22 fixedly connected to the bottom of the mounting frame 19, the bottom of the electric cylinder 22 being fixedly connected to the connecting rod 23. The connecting rod 23 is fitted with an electric push rod 21. One end of the electric push rod 21 is fixedly connected to the L-shaped plate 24. The top of the mounting frame 19 is fixedly connected to a hydraulic cylinder 20. The bottom of the hydraulic cylinder 20 is fixedly connected to a sealing assembly 25. The sealing assembly 25 is slidably connected to the mounting frame 19. The top of the sealing platform 8 is fixedly connected to a sealing mold 16. One side of the sealing mold 16 is rotatably connected to a conveying roller 4. The other side of the conveying roller 4 is rotatably connected to a support frame 6. The bottom of the support frame 6 is fixedly connected to the sealing platform 8.

[0024] The connecting frame 1 can be used to support and reinforce one side of the mounting frame 19. The mounting frame 19 enables the stable installation and use of the electric cylinder 22. The electric cylinder 22 can be used to adjust the working height of the sealing assembly 25. The connection between the electric cylinder 22 and the connecting rod 23 can be used to adjust the working height of the two L-shaped plates 24. When the L-shaped plates 24 move upward, the interference of the L-shaped plates 24 with the movement of the packaging bag can be reduced. The distance between the L-shaped plates 24 and one end of the connecting rod 23 can be adjusted by the electric push rod 21. Thus, when the two L-shaped plates 24 move synchronously, the packaging bag is driven to move towards the center position of the sealing mold 16, realizing the position calibration of the packaging bag and ensuring that the sealing assembly 25 and the sealing mold 16 are in full contact with the sealing part of the packaging bag, thus ensuring the sealing effect. The sealing table 8 can support one side of the support frame 6, and the conveying roller 4 can drive the packaging bag to be conveyed stably.

[0025] Example 2: Figures 1-3 As shown, a motor 5 is fitted into one side of the support frame 6. A gear 10 is fixedly connected to one end of the output shaft of the motor 5. The gear 10 is rotatably connected to the support frame 6. A gear 9 meshes with the top of the gear 10. The gear 9 is rotatably connected to the support frame 6. A rack 11 meshes with the top of the gear 9. A guide frame 12 is fixedly connected to one end of the rack 11. The bottom of the guide frame 12 is slidably connected to the support frame 6. A cooling box 3 is fixedly connected to the top of the sealing platform 8. A heat dissipation fin is fixedly connected to one side of the cooling box 3. A cooling pipe 2 is fitted inside the cooling box 3. One end of the cooling pipe 2 penetrates the side wall of the cooling box 3. A fan 7 is rotatably connected to the top of the cooling box 3. A gear 13 is fixedly connected to the bottom of the fan 7. A gear 14 meshes with one side of the gear 13. The output shaft of the motor 15 is fixedly connected to the bottom of the gear 14. The bottom of the motor 15 is fixedly connected to the sealing platform 8. Both the gear 13 and the gear 14 are rotatably connected to the cooling box 3.

[0026] The support frame 6 can be used to support and reinforce one side of the motor 5. The motor 5 can provide power for the rotation of the gear 10. The gear 10 can drive the gear 9 to rotate, thereby using the meshing of the gear 9 and the rack 11 to drive the rack 11 to move. This causes the guide frame 12 to move synchronously with the rack 11, changing the position of the guide frame 12 on the top of the conveyor roller 4. The guide frame 12 guides one side of the packaging bag, reducing the positional deviation of the packaging bag during conveying. The heat dissipation fins can assist the cooling box 3 in heat dissipation. The cooling pipe 2 can be connected to an external water pump. The water pump accelerates the flow of cooling water inside the cooling pipe 2, thereby cooling the cooling box 3 and accelerating the evaporation of heat on the surface of the cooling box 3. The rotation of the fan 7 can change the contact area between the air and the seal. The cooling box 3 and the fan 7 can accelerate the cooling at the seal.

[0027] The operating method and working principle of this device are as follows: First, place the plastic packaging bag to be sealed on top of the conveyor roller 4. The conveyor roller 4 is driven to rotate by the drive structure installed inside the sealing table 8. Alternatively, a conveyor belt can be installed between the support frame 6 and the sealing mold 16 to transport the packaging bag. The packaging bag is transported to below the limiting member 17. The electric cylinder 22 drives the connecting rod 23 and the L-shaped plate 24 to move downwards, and the electric push rod 21 retracts, driving the L-shaped plate 24 to move closer to the packaging bag, thus centering the packaging bag and achieving proper positioning. After calibration, the electric push rod 18 drives the limiting member 17 to move down, and the limiting member 17 presses and limits the top of the packaging bag. The hydraulic cylinder 20 drives the sealing assembly 25 to move down, and the sealing assembly 25 and the sealing mold 16 are used to heat-seal the packaging bag. After sealing, the L-shaped plate 24 and the limiting member 17 move up, and the packaging bag continues to move with the conveyor roller 4. After the sealing point moves above the cooling box 3, the conveyor roller 4 stops rotating, and the sealing point contacts the cooling box 3 to dissipate heat. The fan 7 accelerates the air flow at the sealing point, thereby achieving rapid cooling of the sealing point.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A plastic packaging sealing device, comprising a sealing platform (8), wherein a connecting frame (1) is fixedly connected to the top of the sealing platform (8), characterized in that: A position calibration mechanism is provided on one side of the connecting frame (1). The position calibration mechanism includes a limiting part (17), a connecting rod (23) and an L-shaped plate (24). An electric push rod (18) is fixedly connected to the top of the limiting part (17). An installation frame (19) is fixedly connected to the top of the electric push rod (18). One side of the installation frame (19) is fixedly connected to the connecting frame (1). An electric cylinder (22) is fixedly connected to the bottom of the installation frame (19). The bottom of the electric cylinder (22) is fixedly connected to the connecting rod (23). An electric push rod (21) is embedded inside the connecting rod (23). One end of the electric push rod (21) is fixedly connected to the L-shaped plate (24).

2. The plastic packaging sealing device according to claim 1, characterized in that: The top of the mounting bracket (19) is fixedly connected to a hydraulic cylinder (20), and the bottom of the hydraulic cylinder (20) is fixedly connected to a sealing assembly (25). The sealing assembly (25) and the mounting bracket (19) are slidably connected.

3. The plastic packaging sealing device according to claim 1, characterized in that: The sealing platform (8) is fixedly connected to the top of the sealing mold (16), and the sealing mold (16) is rotatably connected to one side of the conveying roller (4), and the other side of the conveying roller (4) is rotatably connected to the support frame (6). The bottom of the support frame (6) is fixedly connected to the sealing platform (8).

4. The plastic packaging sealing device according to claim 1, characterized in that: A motor (5) is fitted into one side of the support frame (6). A gear (10) is fixedly connected to one end of the output shaft of the motor (5). The gear (10) is rotatably connected to the support frame (6).

5. The plastic packaging sealing device according to claim 4, characterized in that: Gear 1 (9) meshes with the top of gear 2 (10). Gear 1 (9) is rotatably connected to support frame (6). Gear 1 (9) meshes with rack (11) at the top. One end of rack (11) is fixedly connected to guide frame (12). The bottom of guide frame (12) is slidably connected to support frame (6).

6. The plastic packaging sealing device according to claim 1, characterized in that: A cooling box (3) is fixedly connected to the top of the sealing platform (8). A heat dissipation fin is fixedly connected to one side of the cooling box (3), and a cooling pipe (2) is embedded inside the cooling box (3). One end of the cooling pipe (2) passes through the side wall of the cooling box (3).

7. The plastic packaging sealing device according to claim 6, characterized in that: A fan (7) is rotatably connected to the top of the cooling box (3), and a gear three (13) is fixedly connected to the bottom of the fan (7). A gear four (14) meshes with one side of the gear three (13), and the output shaft of a motor two (15) is fixedly connected to the bottom of the gear four (14). The bottom of the motor two (15) is fixedly connected to the sealing platform (8), and both gear three (13) and gear four (14) are rotatably connected to the cooling box (3).

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