Sealing and welding equipment for plastic steel packaging bag

By designing a plastic steel packaging bag sealing device that includes a guide frame, flattening wheels and a hot pressing component, the device achieves flat cutting and efficient sealing of the bag opening, solving the problems of uneven sealing and low cutting efficiency in traditional equipment, and improving the sealing quality and efficiency.

CN224266131UActive Publication Date: 2026-05-22TIANJIN MEIBEN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN MEIBEN TECHNOLOGY CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Traditional plastic steel packaging bag sealing equipment struggles to ensure uniformity and tightness of the bag opening, and its low cutting efficiency affects sealing quality.

Method used

Design a device that includes a platform, guide frame, leveling wheel, cutting blade and hot pressing assembly. The device achieves flat cutting and efficient sealing of bag opening through mechanical linkage. The leveling wheel and cutting blade are used to squeeze and cut the bag opening, and then the hot pressing assembly is used to seal it.

Benefits of technology

It improves the uniformity and tightness of sealing, ensures the quality of bag sealing, and significantly improves work efficiency, enabling the processing of two packing bags at the same time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging bag sealing and welding equipment, in particular to plastic steel packaging bag sealing and welding equipment which comprises a platform, a guide frame, a mounting block, a mounting shaft, a leveling wheel, a cutting blade, a placing table, a guide assembly, a translation assembly, a sliding assembly and a hot pressing assembly. The bottom wall of the guide frame is fixedly connected with the upper portion of the guide assembly, the two sides of the guide frame are fixedly connected with the inner walls of the two sliding assemblies, the bottom walls of the two sides of the guide frame are each provided with two installation blocks, installation shafts are arranged in the installation blocks, leveling wheels are arranged on the side walls of the installation shafts, and cutting blades are arranged at one ends of the leveling wheels. Two sets of placing tables are arranged above the platform, two sets of hot pressing assemblies are arranged on the two sides of the guide frame, in the using process of the packaging bag sealing and welding equipment, through a series of mechanical linkage, smooth cutting and efficient sealing of a plastic steel packaging bag opening are achieved, and the bag sealing quality is ensured.
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Description

Technical Field

[0001] This utility model relates to the technical field of sealing and welding equipment for packaging bags, and in particular to a sealing and welding equipment for plastic steel packaging bags. Background Technology

[0002] In the production and application of plastic steel packaging bags, sealing is a crucial step. Furthermore, plastic steel packaging bags are widely used in the logistics, warehousing, and packaging industries due to their high strength, light weight, and recyclability.

[0003] In the process of sealing and welding plastic steel packaging bags, traditional sealing methods usually use sealing equipment to seal the bag opening. Furthermore, this method can only seal flat bag openings, making it difficult to guarantee the uniformity and tightness of the seal.

[0004] Therefore, to address the aforementioned problem of inconvenience in achieving flat cutting and efficient sealing of bag openings, a plastic steel packaging bag sealing and welding device can be designed. During the use of the packaging bag sealing and welding device, the surface of the bag opening is flattened by a flattening wheel, and at the same time, the excess material at the bag opening is flattened by a cutting blade, thus achieving flat cutting and efficient sealing of the plastic steel packaging bag opening and ensuring the sealing quality. Utility Model Content

[0005] To overcome the problem that plastic steel packaging bags, due to their special material properties, often have uneven openings before being treated, which directly affects the sealing and aesthetics of the seal, traditional cutting methods often rely on manual tools. This not only results in low cutting efficiency but also uneven cut surfaces, easily leading to problems such as incomplete or missed seals. Furthermore, it is often difficult to ensure the uniformity and tightness of the seal, thus affecting the packaging bag's performance. Therefore, improvements are urgently needed to address the issue of achieving smooth cutting and efficient sealing of the bag openings using a sealing and welding equipment.

[0006] The technical solution of this utility model is as follows: a sealing and welding device for plastic steel packaging bags, comprising a platform, a guide frame, mounting blocks, mounting shafts, leveling wheels, cutting blades, placement tables, guide components, translation components, sliding components, and hot pressing components. The platform has a guide component inside, and a translation component is mounted on the bottom wall of the guide component. Two sets of sliding components are mounted on both sides of the upper part of the platform. A guide frame is mounted above the platform, with its bottom wall fixedly connected to the upper part of the guide component. Both sides of the guide frame are fixedly connected to the inner walls of the two sets of sliding components. Two sets of mounting blocks are mounted on the bottom walls of both sides of the guide frame. A mounting shaft is mounted inside each mounting block, and a leveling wheel is mounted on the side wall of the mounting shaft. A cutting blade is mounted at one end of each leveling wheel. Two placement tables are mounted above the platform, and two sets of hot pressing components are mounted on both sides of the guide frame.

[0007] Preferably, during the use of the bag sealing and welding equipment, the plastic-steel bag to be sealed is first placed flat inside the placement table. Then, the translation component is activated, which drives the guide frame to move parallel through the guide component. The two sides of the guide frame move smoothly through the sliding component. As the guide frame moves parallel, the flattening wheel on its bottom wall passes over the bag and presses the bag opening surface flat. At the same time, the friction between the flattening wheel and the bag causes the flattening wheel to rotate through the mounting shaft, which drives the cutting blade at one end to rotate synchronously. During the parallel movement, the cutting blade flattens and cuts the excess material at the bag opening. After the cutting is completed, the guide frame continues to move, and the hot pressing components on both sides can perform hot pressing and sealing operations on the bag opening. Since the equipment is set as a symmetrical dual-station, it can process two bags at the same time, thus significantly improving work efficiency. In summary, this equipment achieves flat cutting and efficient sealing of the plastic-steel bag opening through a series of mechanical linkages, ensuring the sealing quality.

[0008] Preferably, the guide assembly includes a guide groove, a guide rod, and a guide block. The guide groove is provided inside the platform, the guide rod is provided inside the guide groove, and the guide block is provided on the side wall of the guide rod.

[0009] Preferably, the sliding assembly includes a side frame, a sliding rod, and a sliding block. Two sets of side frames are provided on both sides of the upper part of the platform. The sliding rod is provided inside the side frame, and the sliding block is provided on the side wall of the sliding rod.

[0010] Preferably, the sliding block is slidably connected to the sliding rod, the guide block is slidably connected to the guide rod, the bottom wall of the guide frame is fixedly connected to the top of the guide block, and both sides of the guide frame are fixedly connected to the inner walls of the two sets of sliding blocks.

[0011] Preferably, the translation component includes a fixed base, a drive motor, and a drive shaft. The fixed base is provided on the bottom wall of the guide block, the drive motor is provided inside the fixed base, and the drive shaft is provided at the output end of the drive motor.

[0012] Preferably, the translation assembly also includes a drive gear and a guide toothed plate. One end of the drive shaft is provided with a drive gear, and the bottom wall of the platform is provided with a guide toothed plate, which meshes with the drive gear.

[0013] Preferably, the hot pressing assembly includes a connecting bracket, a hot pressing plate, and a hot pressing edge. The hot pressing edge is provided on the upper side of one side of the placement platform, and two sets of connecting brackets are provided on both sides of the guide frame. The hot pressing plate is provided on the bottom wall of the connecting bracket, and the hot pressing edge is located below the hot pressing plate.

[0014] The beneficial effects of this utility model are:

[0015] When using the bag sealing and welding equipment, the plastic-steel bag to be sealed is first placed flat inside the placement table. Then, the translation component is activated, which drives the guide frame to move parallel through the guide component. The two sides of the guide frame move smoothly through the sliding components. As the guide frame moves parallel, the flattening roller on its bottom wall passes over the bag and presses the bag opening surface flat. At the same time, the friction between the flattening roller and the bag causes the flattening roller to rotate through the mounting shaft, which drives the cutting blade at one end to rotate synchronously. During the parallel movement, the cutting blade flattens and cuts the excess material at the bag opening. After cutting, the guide frame continues to move, and the hot pressing components on both sides can perform hot pressing and sealing of the bag opening. Because the equipment is set as a symmetrical dual-station, it can process two bags at the same time, thus significantly improving work efficiency. In summary, this equipment achieves flat cutting and efficient sealing of the plastic-steel bag opening through a series of mechanical linkages, ensuring the sealing quality. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of a plastic steel packaging bag sealing and welding device according to this utility model.

[0017] Figure 2 The diagram shown is a partial three-dimensional structural schematic of a plastic steel packaging bag sealing and welding device according to this utility model.

[0018] Figure 3 The diagram shown is a partial three-dimensional structural schematic of a plastic steel packaging bag sealing and welding device according to this utility model.

[0019] Figure 4 The diagram shown is a partial three-dimensional structural schematic of a plastic steel packaging bag sealing and welding device according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Platform; 2. Guide frame; 3. Mounting block; 4. Mounting shaft; 5. Flattening wheel; 6. Cutting blade; 7. Placement table; 101. Guide groove; 102. Guide rod; 103. Guide block; 201. Side frame; 202. Sliding rod; 203. Sliding block; 301. Fixed seat; 302. Drive motor; 303. Drive shaft; 304. Drive gear; 305. Guide toothed plate; 401. Connecting bracket; 402. Hot press plate; 403. Hot press edge. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 and Figure 2This utility model provides an embodiment: a sealing and welding device for plastic steel packaging bags, including a platform 1, a guide frame 2, mounting blocks 3, mounting shafts 4, flattening wheels 5, cutting blades 6, placement tables 7, guiding components, translation components, sliding components, and hot pressing components. The platform 1 has a guide component inside, and a translation component is provided on the bottom wall of the guide component. Two sets of sliding components are provided on both sides of the upper part of the platform 1. The guide frame 2 is provided above the platform 1, and the bottom wall of the guide frame 2 is fixedly connected to the upper part of the guide component. Both sides of the guide frame 2 are fixedly connected to the inner walls of the two sets of sliding components. Two sets of mounting blocks 3 are provided on the bottom walls of both sides of the guide frame 2. The mounting blocks 3 have mounting shafts 4 inside, and flattening wheels 5 are provided on the side walls of the mounting shafts 4. One end of the flattening wheel 5 is provided with a cutting blade. Two sets of placement tables 7 are provided above the platform 1, and two sets of hot pressing components are provided on both sides of the guide frame 2.

[0023] Please see Figure 3 and Figure 4 The guiding assembly includes a guide groove 101, a guide rod 102, and a guide block 103. The platform 1 has a guide groove 101 inside, and a guide rod 102 is installed inside the guide groove 101. A guide block 103 is installed on the side wall of the guide rod 102. The rotation of the drive gear 304 is converted into parallel movement of the guide block 103 on the guide rod 102. The sliding assembly includes a side frame 201, a sliding rod 202, and a sliding block 203. Two sets of side frames 201 are installed on both sides of the upper part of the platform 1. A sliding rod 202 is installed inside the side frame 201, and a sliding block 203 is installed on the side wall of the sliding rod 202. The moving block 203 and the guide frame 2 achieve stable parallel movement on both sides through the sliding of the sliding block 203 on the sliding rod 202. The sliding block 203 is slidably connected to the sliding rod 202, the guide block 103 is slidably connected to the guide rod 102, the bottom wall of the guide frame 2 is fixedly connected to the top of the guide block 103, and both sides of the guide frame 2 are fixedly connected to the inner walls of the two sets of sliding blocks 203. The rotation of the drive gear 304 is converted into the parallel movement of the guide block 103 on the guide rod 102, and the two sides of the guide frame 2 achieve stable parallel movement through the sliding of the sliding block 203 on the sliding rod 202.

[0024] Please see Figure 2 and Figure 3The translation component includes a fixed base 301, a drive motor 302, and a drive shaft 303. The fixed base 301 is mounted on the bottom wall of the guide block 103, and the drive motor 302 is housed inside the fixed base 301. The drive shaft 303 is located at the output end of the drive motor 302. Activating the drive motor 302 causes the drive shaft 303 to rotate. The translation component also includes a drive gear 304 and a guide toothed plate 305. The drive gear 304 is mounted on one end of the drive shaft 303, and the guide toothed plate 305 is mounted on the bottom wall of the platform 1. The drive gear 304 meshes with the guide toothed plate 305. The drive motor 302 drives the drive gear 304 to rotate via the drive shaft 303. Because the drive gear 304 meshes with the guide toothed plate 305... The drive gear 304 meshes with the toothed plate 305, so the rotation of the drive gear 304 is converted into the parallel movement of the guide block 103 on the guide rod 102. At the same time, the guide block 103 further drives the guide frame 2, which is fixedly connected to it, to move in parallel. The hot pressing assembly includes a connecting bracket 401, a hot pressing plate 402, and a hot pressing edge 403. A hot pressing edge 403 is provided above one side of the placement platform 7. Two sets of connecting brackets 401 are provided on both sides of the guide frame 2. A hot pressing plate 402 is provided on the bottom wall of the connecting bracket 401. The hot pressing edge 403 is provided below the hot pressing plate 402. As the guide frame 2 continues to move, the hot pressing plates 402 on the connecting brackets 401 on both sides and the hot pressing edge 403 on the platform 1 work together to perform hot pressing and sealing of the bag opening.

[0025] When the bag sealing and welding equipment is in use, firstly, the plastic-steel bag to be sealed is placed flat inside the placement platform 7. Then, the drive motor 302 is started. The drive motor 302 drives the drive gear 304 to rotate through the drive shaft 303. Since the drive gear 304 meshes with the guide tooth plate 305, the rotation of the drive gear 304 is converted into parallel movement of the guide block 103 on the guide rod 102. At the same time, the guide block 103 further drives the guide frame 2, which is fixedly connected to it, to move parallel. Furthermore, the two sides of the guide frame 2 achieve stable parallel movement through the sliding of the sliding block 203 on the sliding rod 202.

[0026] As the guide frame 2 moves parallel, the leveling wheel 5 on its bottom wall passes over the top of the packing bag, pressing and flattening the surface of the bag opening. At the same time, the friction between the leveling wheel 5 and the packing bag causes the leveling wheel 5 to rotate via the mounting shaft 4, which in turn drives the cutting blade at one end to rotate synchronously. During the parallel movement, the cutting blade flattens and cuts the excess material at the opening of the packing bag.

[0027] After the cutting is completed, the guide frame 2 continues to move. The hot pressing plate 402 on the connecting brackets 401 on both sides works together with the hot pressing edge 403 of the platform 1 to perform hot pressing and sealing of the bag opening. Since the equipment is set as a symmetrical dual-station, it can process two bags at the same time, thus significantly improving work efficiency. In summary, this equipment achieves flat cutting and efficient sealing of the plastic steel bag opening through a series of mechanical linkages, ensuring the sealing quality.

[0028] Through the above steps, when the packaging bag sealing and welding equipment is in use, the plastic steel packaging bag to be sealed is first placed flat inside the placement platform 7. Then, the translation component is activated, which drives the guide frame 2 to move parallel through the guide component. The two sides of the guide frame 2 move smoothly through the sliding component. As the guide frame 2 moves parallel, the flattening wheel 5 on its bottom wall passes over the packaging bag and presses the surface of the bag opening flat. At the same time, the friction between the flattening wheel 5 and the packaging bag causes the flattening wheel 5 to rotate through the mounting shaft 4, which drives the cutting blade at one end to rotate synchronously. During the parallel movement, the cutting blade flattens and cuts the excess material at the bag opening. After the cutting is completed, the guide frame 2 continues to move, and the hot pressing components on both sides can perform hot pressing and sealing operations on the bag opening. Since the equipment is set as a symmetrical dual-station, it can process two packaging bags at the same time, thereby significantly improving work efficiency. In summary, this equipment achieves flat cutting and efficient sealing of the plastic steel packaging bag opening through a series of mechanical linkages, ensuring the sealing quality.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A sealing and welding device for plastic steel packaging bags, comprising a platform (1), characterized in that: It also includes a guide frame (2), mounting blocks (3), mounting shafts (4), leveling wheels (5), cutting blades (6), a placement table (7), a guide assembly, a translation assembly, a sliding assembly, and a hot pressing assembly. The platform (1) has a guide assembly inside, and a translation assembly is provided on the bottom wall of the guide assembly. Two sets of sliding assemblies are provided on both sides of the upper part of the platform (1). The platform (1) has a guide frame (2) above it. The bottom wall of the guide frame (2) is fixedly connected to the upper part of the guide assembly. The two sides of the guide frame (2) are fixedly connected to the inner walls of the two sets of sliding assemblies. Two sets of mounting blocks (3) are provided on the bottom walls of both sides of the guide frame (2). The mounting shafts (4) are provided inside the mounting blocks (3). Leveling wheels (5) are provided on the side walls of the mounting shafts (4). A cutting blade is provided at one end of the leveling wheel (5). Two sets of placement tables (7) are provided on the upper part of the platform (1). Two sets of hot pressing assemblies are provided on both sides of the guide frame (2).

2. The sealing and welding equipment for plastic steel packaging bags according to claim 1, characterized in that: The guide assembly includes a guide groove (101), a guide rod (102) and a guide block (103). The platform (1) has a guide groove (101) inside, a guide rod (102) inside the guide groove (101), and a guide block (103) on the side wall of the guide rod (102).

3. The sealing and welding equipment for plastic steel packaging bags according to claim 1, characterized in that: The sliding assembly includes a side frame (201), a sliding rod (202), and a sliding block (203). Two sets of side frames (201) are provided on both sides above the platform (1). The sliding rod (202) is provided inside the side frame (201), and the sliding block (203) is provided on the side wall of the sliding rod (202).

4. The sealing and welding equipment for plastic steel packaging bags according to claim 3, characterized in that: The sliding block (203) is slidably connected to the sliding rod (202), the guide block (103) is slidably connected to the guide rod (102), the bottom wall of the guide frame (2) is fixedly connected to the top of the guide block (103), and both sides of the guide frame (2) are fixedly connected to the inner walls of the two sets of sliding blocks (203).

5. The sealing and welding equipment for plastic steel packaging bags according to claim 4, characterized in that: The translation component includes a fixed base (301), a drive motor (302) and a drive shaft (303). The fixed base (301) is provided on the bottom wall of the guide block (103), the drive motor (302) is provided inside the fixed base (301), and the drive shaft (303) is provided at the output end of the drive motor (302).

6. The sealing and welding equipment for plastic steel packaging bags according to claim 5, characterized in that: The translation assembly also includes a drive gear (304) and a guide tooth plate (305). One end of the drive shaft (303) is provided with the drive gear (304), and the bottom wall of the platform (1) is provided with the guide tooth plate (305). The drive gear (304) meshes with the guide tooth plate (305).

7. The sealing and welding equipment for plastic steel packaging bags according to claim 5, characterized in that: The hot pressing assembly includes a connecting bracket (401), a hot pressing plate (402), and a hot pressing edge (403). The hot pressing edge (403) is provided above one side of the placement platform (7). Two sets of connecting brackets (401) are provided on both sides of the guide frame (2). The hot pressing plate (402) is provided on the bottom wall of the connecting bracket (401), and the hot pressing edge (403) is provided below the hot pressing plate (402).