Packaging bag edge melting machine
By introducing an adjustment and limiting mechanism into the packaging bag edge-sealing machine, the problem of the inability to adjust the edge-sealing distance was solved, thereby improving sealing quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-13
AI Technical Summary
Existing packaging bag edge welding machines cannot adjust the welding gap according to the width of the packaging bag, resulting in a seal that is too wide or too narrow, affecting the sealing quality and strength.
A packaging bag edge-melting machine was designed, which includes an adjustment mechanism and a limiting mechanism. The position of the edge-melting part is adjusted by a motor-driven bidirectional threaded rod, and the heating plate and pressure plate are driven by a cylinder to melt the edge of the packaging bag. Combined with the limiting mechanism, the flatness and stability of the packaging bag during the edge-melting process are ensured.
It enables automatic adjustment of the welding edge spacing based on the width of the packaging bag, ensuring sealing quality and aesthetics, while also improving the stability and production efficiency of the welding edge process.
Smart Images

Figure CN223989825U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag processing technology, specifically a packaging bag edge melting machine. Background Technology
[0002] Packaging bags are typically made of plastic and are used for packaging various production and daily necessities. Therefore, they are widely used in daily life and industrial production. Plastic packaging bags are usually made by folding a plastic film in half and then sealing one side of the packaging bag with heat. Therefore, an edge-sealing machine is needed to melt the edges of the packaging bags.
[0003] Compared with existing technologies: The width of the packaging bag varies, and the required edge welding distance should be adjusted accordingly. If the edge welding machine cannot adjust the edge welding distance according to the width of the packaging bag, it may result in the seal being too wide or too narrow. If the seal is too wide, it will waste materials and may reduce the strength of the seal; if the seal is too narrow, it may result in an insecure seal that is prone to breakage or leakage.
[0004] Therefore, a packaging bag edge melting machine is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a packaging bag edge melting machine, which solves the technical problem that the edge width cannot be adjusted according to the spacing, and achieves the purpose of adjustment.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a packaging bag edge melting machine, including a processing table, a control panel body is provided on the front side of the processing table, a placement roller is provided on the right side of the processing table, a conveying roller is provided on the left side of the placement roller, the conveying roller is located on the top surface of the processing table, and an adjustment mechanism and a limiting mechanism are provided on the top surface of the processing table.
[0007] The adjustment mechanism includes an adjustment section and a molten edge section;
[0008] The molten edge portion is located on the bottom surface of the adjustment portion;
[0009] The limiting mechanism includes a limiting part and a fixing part;
[0010] The fixing part is located on the outer side of the limiting part.
[0011] Preferably, the adjustment part includes a support frame, the bottom surface of the support frame is fixedly connected to the top surface of the processing table, the inner side of the support frame is provided with an installation groove, the rear side of the support frame is provided with a fixing seat, the fixing seat is fixedly connected to the support frame, and the top surface of the fixing seat is provided with a motor, the motor is fixedly connected to the fixing seat.
[0012] Preferably, each of the motor output end faces is provided with a bidirectional threaded rod, the bidirectional threaded rod is fixedly connected to the motor, the bidirectional threaded rod extends through to the inner side of the mounting groove, the bidirectional threaded rod is threadedly connected to the inner wall of the support frame, the front end face of the bidirectional threaded rod is rotatably connected to the inner side of the mounting groove through a bearing seat, and each of the surfaces of the bidirectional threaded rod is fitted with a threaded block, the threaded block being threadedly connected to the bidirectional threaded rod.
[0013] Preferably, the fused edge portion includes a T-shaped plate, the outer side of the T-shaped plate is fixedly connected to the inner side of the threaded block, a cylinder is provided through the inner wall of the T-shaped plate, a base plate is provided on the output end face of the cylinder, the base plate is fixedly connected to the cylinder, a sliding rod is provided on the top surface of the base plate, the sliding rod is fixedly connected to the base plate, the sliding rod extends through to the top of the T-shaped plate, and the sliding rod is slidably connected to the T-shaped plate.
[0014] Preferably, each of the sliding rods is provided with a pressure plate below it, the top surface of the pressure plate is fixedly connected to the bottom surface of the base plate, and the bottom surface of each pressure plate is provided with a heating plate, which is fixedly connected to the pressure plate. The adjustment effect is achieved by adjusting the adjustment part and the melting edge part in the adjustment mechanism.
[0015] Preferably, the limiting part includes a gate-shaped plate, two of which are arranged on the left and right sides. The gate-shaped plate is fixedly connected to the processing table. A through groove is opened on the inner side of each gate-shaped plate. A second cylinder is provided through the inner wall of each gate-shaped plate. A lower pressure plate is provided on the output end face of each second cylinder. The lower pressure plate is fixedly connected to the second cylinder.
[0016] Preferably, the fixing part includes a limiting plate, the top surface of the limiting plate is fixedly connected to the bottom surface of the lower pressure plate, a slider is provided on the outer side of the limiting plate, the slider is fixedly connected to the outer side of the lower pressure plate, a guide rod is provided through the inner wall of the slider, the guide rod is slidably connected to the slider, and the guide rod is fixedly connected to the inner side of the through groove. The limiting part and the fixing part in the limiting mechanism achieve the limiting effect.
[0017] Compared with the prior art, the beneficial effects of this utility model are: this packaging bag edge-sealing machine,
[0018] 1) Through the adjustment mechanism, the motor in the adjustment section is started when the distance between the molding edges needs to be adjusted. The motor drives the bidirectional threaded rod, which drives the threaded block, causing the threaded block to move the entire molding edge section to the preset position. After adjustment, when molding is needed, the heating plate is started to heat the edge, which in turn starts the cylinder. The cylinder drives the base plate, pressure plate, and heating plate to descend under the action of the slide rod, thereby molding the edges of the packaging bags entering the adjustment mechanism to accommodate packaging bags of different widths and ensure sealing quality and aesthetics.
[0019] 2) Through the limiting mechanism, the cylinder two in the limiting part is activated, and the cylinder two drives the lower pressure plate and the limiting plate to slide on the surface of the guide rod under the action of the slider, thereby limiting the packaging bags on both sides, ensuring that the packaging bags remain flat and stable during the edge melting process, thereby improving the edge melting quality and production efficiency. Attached Figure Description
[0020] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a three-dimensional structural schematic diagram of the present utility model;
[0022] Figure 3 This is a three-dimensional schematic diagram of the adjustment structure of this utility model;
[0023] Figure 4 This is a three-dimensional schematic diagram of the limiting structure of this utility model.
[0024] In the diagram: 1. Processing table; 2. Control panel body; 3. Placement roller; 4. Conveying roller; 5. Adjustment mechanism; 51. Adjustment part; 52. Welding edge part; 511. Support frame; 512. Fixing seat; 513. Motor; 514. Bidirectional threaded rod; 515. Threaded block; 521. T-shaped plate; 522. Cylinder 1; 523. Base plate; 524. Slide rod; 525. Pressure plate; 526. Heating plate; 6. Limiting mechanism; 61. Limiting part; 62. Fixing part; 611. Gate-shaped plate; 612. Cylinder 2; 613. Lower pressure plate; 621. Limiting plate; 622. Slider; 623. Guide rod. Detailed Implementation
[0025] 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.
[0026] Example 1:
[0027] Based on the current issue that the weld edge width cannot be adjusted according to the spacing, please refer to... Figures 1-3 This utility model provides a technical solution: a packaging bag edge melting machine, including a processing table 1, a control panel body 2 is provided on the front side of the processing table 1, a placement roller 3 is provided on the right side of the processing table 1, a conveying roller 4 is provided on the left side of the placement roller 3, the conveying roller 4 is located on the top surface of the processing table 1, and an adjustment mechanism 5 and a limiting mechanism 6 are provided on the top surface of the processing table 1.
[0028] The adjustment mechanism 5 includes an adjustment section 51 and a molten edge section 52;
[0029] The molten edge portion 52 is located on the bottom surface of the adjusting portion 51;
[0030] The limiting mechanism 6 includes a limiting part 61 and a fixing part 62;
[0031] The fixing part 62 is located on the outer side of the limiting part 61.
[0032] The adjustment unit 51 includes a support frame 511. The bottom surface of the support frame 511 is fixedly connected to the top surface of the processing table 1. The inner side of the support frame 511 is provided with a mounting groove. The rear side of the support frame 511 is provided with a fixing seat 512. The fixing seat 512 is fixedly connected to the support frame 511. The top surface of the fixing seat 512 is provided with a motor 513. The motor 513 is fixedly connected to the fixing seat 512.
[0033] Each output end face of the motor 513 is provided with a bidirectional threaded rod 514, which is fixedly connected to the motor 513. The bidirectional threaded rod 514 extends through to the inner side of the mounting groove and is threadedly connected to the inner wall of the support frame 511. The front end face of the bidirectional threaded rod 514 is rotatably connected to the inner side of the mounting groove through a bearing seat. Each surface of the bidirectional threaded rod 514 is fitted with a threaded block 515, which is threadedly connected to the bidirectional threaded rod 514.
[0034] The molten edge portion 52 includes a T-shaped plate 521. The outer side of the T-shaped plate 521 is fixedly connected to the inner side of the threaded block 515. A cylinder 522 is provided through the inner wall of the T-shaped plate 521. A base plate 523 is provided on the output end face of the cylinder 522. The base plate 523 is fixedly connected to the cylinder 522. A slide rod 524 is provided on the top surface of the base plate 523. The slide rod 524 is fixedly connected to the base plate 523. The slide rod 524 extends through to the top of the T-shaped plate 521 and is slidably connected to the T-shaped plate 521.
[0035] Each slide bar 524 is provided with a pressure plate 525 below it. The top surface of the pressure plate 525 is fixedly connected to the bottom surface of the base plate 523. Each pressure plate 525 is provided with a heating plate 526 on its bottom surface. The heating plate 526 is fixedly connected to the pressure plate 525.
[0036] Furthermore, in this embodiment, the adjusting mechanism 5 utilizes the motor 513 in the adjusting unit 51. After the motor 513 is started, it drives the bidirectional threaded rod 514 to rotate. The rotation of the bidirectional threaded rod 514 further drives the threaded block 515 to move. The movement of the threaded block 515 drives the entire edge-sealing section 52 to move until it reaches the preset position. After adjusting the spacing of the edge-sealing section 52, when it is necessary to seam the packaging bag, the heating plate 526 is activated for preheating, and simultaneously, cylinder 522 is activated. The piston rod of cylinder one will extend, driving the base plate 523, pressure plate 525 and heated plate 526 to descend together. During the descent, the base plate 523 and pressure plate 525 will descend smoothly under the guidance of slide rod 524. When the heated plate 526 contacts the edge of the packaging bag, it will heat and fuse it, thereby completing the edge melting operation. After the edge melting operation is completed, cylinder one 522 will drive the base plate 523, pressure plate 525 and heated plate 526 to rise and reset, ready for the next edge melting operation.
[0037] Furthermore, in this embodiment, the adjustment mechanism 5 utilizes the motor 513 in the adjustment section 51. When it is necessary to adjust the spacing of the edge-melting section 52, the motor 513 is activated. The motor 513 drives the bidirectional threaded rod 514, which in turn drives the threaded block 515. This causes the threaded block 515 to move the edge-melting section 52 as a whole to the preset position. After adjustment, when edge melting is required, the heating plate 526 is activated to heat the area, thereby activating the cylinder 522. The cylinder 522 drives the base plate 523, pressure plate 525, and heating plate 526 to descend under the action of the slide rod 524, thereby melting the edges of the packaging bag entering the adjustment mechanism 5 to accommodate packaging bags of different widths and ensure sealing quality and aesthetics.
[0038] Example 2:
[0039] Please see Figure 1 , Figure 2 , Figure 4 Furthermore, based on Embodiment 1, the limiting part 61 includes a gate-shaped plate 611, two gate-shaped plates 611 are arranged on the left and right sides, the gate-shaped plates 611 are fixedly connected to the processing table 1, the inner side of the gate-shaped plates 611 is provided with a through groove, the inner wall of the gate-shaped plates 611 is provided with a second cylinder 612, the output end face of the second cylinder 612 is provided with a lower pressure plate 613, and the lower pressure plate 613 is fixedly connected to the second cylinder 612.
[0040] The fixing part 62 includes a limiting plate 621. The top surface of the limiting plate 621 is fixedly connected to the bottom surface of the lower pressure plate 613. A slider 622 is provided on the outer side of the limiting plate 621. The slider 622 is fixedly connected to the outer side of the lower pressure plate 613. A guide rod 623 is provided through the inner wall of the slider 622. The guide rod 623 is slidably connected to the slider 622. The guide rod 623 is fixedly connected to the inner side of the through groove.
[0041] Furthermore, in this embodiment, the limiting mechanism 6 utilizes the cylinder 612 in the limiting part 61. When it is necessary to limit the packaging bag to ensure flatness and stability during the edge melting process, the cylinder 612 is first activated. After the cylinder 612 is activated, its piston rod extends, driving the lower pressure plate 613 and the limiting plate 621 to move together. During the movement, the lower pressure plate 613 and the limiting plate 621 will slide smoothly along the surface of the guide rod 623 under the action of the slider 622. As the lower pressure plate 613 and the limiting plate 621 move, the limiting plate 621 will contact both sides of the packaging bag and limit it. In this way, the packaging bag will be fixed during the edge melting process.
[0042] Furthermore, in this embodiment, the limiting mechanism 6 utilizes the cylinder 612 in the limiting part 61 to activate the cylinder 612. The cylinder 612 drives the lower pressure plate 613 and the limiting plate 621 to slide on the surface of the guide rod 623 under the action of the slider 622, thereby limiting the packaging bags on both sides and ensuring that the packaging bags remain flat and stable during the edge melting process, thereby improving the edge melting quality and production efficiency.
[0043] In use, when the packaging bag is coiled around the placement roller 3 and conveyed by the conveying roller 4, when it reaches the area below the adjusting mechanism 5 and the limiting mechanism 6, and edge melting is required, the limiting mechanism 6, using the cylinder 612 in the limiting part 61, first starts the cylinder 612. After the cylinder 612 starts, its piston rod extends, driving the lower pressure plate 613 and the limiting plate 621 to move together. During the movement, the lower pressure plate 613 and the limiting plate 621 slide smoothly along the surface of the guide rod 623 under the action of the slider 622. As the lower pressure plate 613 and the limiting plate 621 move, the limiting plate 621 contacts both sides of the packaging bag and limits it. In this way, the packaging bag is fixed during the edge melting process. After being fixed, the adjusting mechanism 5, using the motor 513 in the adjusting part 51, starts the motor 513, which drives the cylinder 612 to move. The bidirectional threaded rod 514 rotates, which in turn drives the threaded block 515 to move. The movement of the threaded block 515 drives the entire edge-melting section 52 to move until it reaches the preset position. After adjusting the spacing of the edge-melting section 52, when it is necessary to melt the edge of the packaging bag, the heating plate 526 is activated for preheating. At the same time, the cylinder 522 is activated, and the piston rod of the cylinder extends, driving the base plate 523, the pressure plate 525, and the already heated heating plate 526 to descend together. During the descent, the base plate 523, the pressure plate 525, and other components descend smoothly under the guidance of the slide rod 524. When the heating plate 526 contacts the edge of the packaging bag, it heats and melts it, thereby completing the edge-melting operation. After the edge-melting operation is completed, the cylinder 522 drives the base plate 523, the pressure plate 525, and the heating plate 526 to rise and reset, ready for the next edge-melting operation.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A packaging bag edge sealing machine comprising a processing table (1), characterized in that: The processing platform (1) front side is provided with control panel body (2), the processing platform (1) right side is provided with the placement roller (3), the placement roller (3) left side is provided with conveying roller (4), the conveying roller (4) is located in the processing platform (1) top, the processing platform (1) top is provided with adjusting mechanism (5) and limiting mechanism (6); The adjusting mechanism (5) includes adjusting part (51) and edge melting part (52); The edge melting part (52) is located in the bottom surface of the adjusting part (51); The limiting mechanism (6) includes limiting part (61) and fixed part (62); The fixed part (62) is located in the outer side of the limiting part (61).
2. A bag sealing machine according to claim 1, characterised in that: The adjusting part (51) includes support frame (511), the bottom surface of the support frame (511) is fixedly connected with the top of the processing platform (1), the inner side of the support frame (511) is provided with a mounting slot, the rear side of the support frame (511) is provided with a fixed seat (512), the fixed seat (512) is fixedly connected with the support frame (511), the top of the fixed seat (512) is provided with a motor (513), and the motor (513) is fixedly connected with the fixed seat (512).
3. A bag sealing machine according to claim 2, characterised in that: The output end surface of the motor (513) is provided with a bidirectional threaded rod (514), the bidirectional threaded rod (514) is fixedly connected with the motor (513), the bidirectional threaded rod (514) extends through the inner side of the mounting slot, the bidirectional threaded rod (514) is screwed with the inner wall of the support frame (511), the front end surface of the bidirectional threaded rod (514) is rotatably connected with the inner side of the mounting slot through a bearing seat, and the surface of the bidirectional threaded rod (514) is provided with a threaded block (515), the threaded block (515) is screwed with the bidirectional threaded rod (514).
4. A bag sealing machine according to claim 3, wherein: The edge melting part (52) includes a T-shaped plate (521), the outer side of the T-shaped plate (521) is fixedly connected with the inner side of the threaded block (515), the inner wall of the T-shaped plate (521) is provided with a cylinder (522), the output end surface of the cylinder (522) is provided with a bottom plate (523), the bottom plate (523) is fixedly connected with the cylinder (522), the top of the bottom plate (523) is provided with a slide rod (524), the slide rod (524) is fixedly connected with the bottom plate (523), the slide rod (524) extends through the T-shaped plate (521) above, and the slide rod (524) is slidably connected with the T-shaped plate (521).
5. A bag sealing machine according to claim 4, wherein: The slide rod (524) is provided with a pressing plate (525) below, the top of the pressing plate (525) is fixedly connected with the bottom of the bottom plate (523), the bottom of the pressing plate (525) is provided with a heating plate (526), and the heating plate (526) is fixedly connected with the pressing plate (525).
6. A bag sealing machine according to claim 1, characterized in that: The limiting part (61) includes door type plates (611), two of which are arranged left and right, the door type plates (611) are fixedly connected with the machining table (1), the inner sides of the door type plates (611) are each provided with a through groove, and the inner walls of the door type plates (611) are each provided with a cylinder two (612) in penetration, the output end faces of the cylinder two (612) are each provided with a lower pressing plate (613), and the lower pressing plate (613) is fixedly connected with the cylinder two (612).
7. A bag sealing machine according to claim 6, characterised in that: The fixing part (62) includes a limiting plate (621), the top surface of the limiting plate (621) is fixedly connected with the bottom surface of the lower pressing plate (613), the outer sides of the limiting plate (621) are each provided with a sliding block (622), the sliding block (622) is fixedly connected with the outer side of the lower pressing plate (613), the inner walls of the sliding block (622) are each provided with a guide rod (623) in penetration, the guide rod (623) is in sliding connection with the sliding block (622), and the guide rod (623) is fixedly connected with the inner side of the through groove.