Three-dimensional bag making and edge sealing machine
By combining the adjusting mechanism and the hydraulic rod, the spacing of the heat-sealing plates of the edge banding machine is automatically adjusted, which solves the problem of poor equipment versatility and improves production efficiency and equipment adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JISTAR SEMICONDUCTOR TECHNOLOGY CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-07-21
AI Technical Summary
The existing edge-sealing machine has a fixed conveyor belt slot, which cannot be adapted to edge-sealing bags of different sizes and shapes, resulting in poor equipment versatility and low production efficiency.
The heat-sealing plate spacing is adjusted by a motor-driven bidirectional lead screw to accommodate bags of different sizes. The design of hydraulic rods and springs ensures stable movement and cushioning of the heat-sealing plates.
The spacing between heat-sealing plates can be quickly adjusted without changing the mold, improving production efficiency and equipment flexibility, and ensuring the stability and safety of the edge sealing process.
Smart Images

Figure CN224528195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of edge sealing machine technology, and in particular to a three-dimensional bag making edge sealing machine. Background Technology
[0002] In the production and processing field, edge banding machines are a key piece of equipment widely used in industries such as furniture manufacturing, board processing, printing and packaging. They are mainly used to seal, cover or decorate the edges of boards, packaging bags or other sheet materials to improve the aesthetics, durability and safety of the products.
[0003] A Chinese utility model patent with publication number CN222611570U discloses an "automatic edge-sealing machine, comprising: an edge-sealing machine base, wherein the edge-sealing machine base is provided with multiple sets of conveyor belts, and the conveyor belts are provided with grooves for fixing edge-sealed bags. The grooves can accurately fix the edge-sealed bags, prevent displacement during the edge-sealing process, and ensure the accuracy of the edge-sealing... An electric lifting rod descends to drive an extrusion plate to press onto the edge-sealed bag, and a heating module passes through the grooves to seal the edges of the edge-sealed bag." However, because the grooves on the conveyor belts are fixed structures, their size and shape cannot be adjusted, thus only suitable for edge-sealed bags or workpieces of specific specifications. When processing products of different sizes or shapes, the entire set of conveyor belts must be replaced or the tooling must be reconfigured, resulting in poor equipment versatility and reduced production efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a three-dimensional bag sealing machine in order to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A three-dimensional bag making and sealing machine includes a machine body, a support frame fixedly connected to the table of the machine body, and further includes: The hydraulic rod is fixedly mounted on the bracket; The lifting plate is fixedly connected to the free end of the hydraulic rod; Heat-sealing plates are arranged along the length of the machine body on both sides of the bottom of the lifting plate; The spacing adjustment mechanism, installed inside the lifting plate, is used to adjust the spacing between the two sets of heat-sealing plates.
[0006] As a further description of the above technical solution: The adjusting mechanism includes: A two-way lead screw is rotatably mounted in a through slot on the lifting plate; The motor is fixedly mounted on the lifting plate, and the output shaft of the motor is connected to one end of the double-acting lead screw. The slider is fitted onto both ends of the bidirectional lead screw; Two sets of first connecting rods are rotatably connected to one side of two sets of sliders, and the free ends of the first connecting rods are rotatably connected to the same set of heat sealing plates. Two sets of second connecting rods are rotatably connected to the other side of the two sets of sliders, and the free ends of the second connecting rods are rotatably connected to another set of heat-sealing plates.
[0007] As a further description of the above technical solution: The distance adjustment mechanism further includes: The guide sleeve slides in conjunction with the groove on the lifting plate. The groove is arranged along the width of the machine body. The guide sleeve and the heat sealing plate are vertically guided.
[0008] As a further description of the above technical solution: The adjusting mechanism further includes: The second guide rod has its bottom end passing through the guide sleeve and then fixedly connected to both sides of the top of the heat-sealing plate; A spring is fixedly sleeved on the second guide rod, and its two ends are fixedly connected to the guide sleeve and the heat sealing plate, respectively.
[0009] As a further description of the above technical solution: The adjusting mechanism further includes: The first fixed seat is fixedly connected to the guide sleeve; The second fixing seat is fixedly connected to both sides of the slider; The first and second fixed seats are rotatably connected to the connecting rod between them via a rotating shaft.
[0010] As a further description of the above technical solution: The top of the lifting plate is fixedly connected to a first guide rod that passes through the bracket.
[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, when changing to different specifications of bag body, it is only necessary to drive the bidirectional lead screw to rotate by the motor, drive the two sliders to move synchronously inward or outward along the lead screw, and the sliders drive the first connecting rod and the second connecting rod to swing, push or pull the heat sealing plates on both sides to move laterally, so as to quickly change the spacing of the heat sealing plates. There is no need to manually change the mold or adjust the mechanical structure, which significantly improves production efficiency and equipment flexibility.
[0012] 2. In this utility model, the spring is fixedly sleeved on the second guide rod, and the two ends of the spring are fixedly connected to the guide sleeve and the heat sealing plate respectively to provide pre-tightening force. After heat sealing is completed, it helps the heat sealing plate to rebound. At the same time, it can buffer the pressure during the sealing process to avoid damage to the bag or equipment. Attached Figure Description
[0013] Figure 1A three-dimensional structural schematic diagram of a three-dimensional bag sealing machine according to an embodiment of the present utility model is shown; Figure 2 A schematic diagram of the connection structure of the bracket and the adjusting mechanism according to an embodiment of the present utility model is shown; Figure 3 A schematic diagram of the connection structure of the lifting plate and the adjusting mechanism according to an embodiment of the present utility model is shown; Figure 4 A schematic diagram of the adjusting mechanism according to an embodiment of the present invention is shown.
[0014] Legend: 1. Machine body; 2. Support frame; 3. Hydraulic rod; 4. First guide rod; 5. Lifting plate; 501. Through groove; 502. Slide groove; 6. Heat sealing plate; 7. Motor; 8. Guide sleeve; 9. Spring; 10. Two-way lead screw; 11. Slider; 12. First connecting rod; 13. Second connecting rod; 14. First fixed seat; 15. Second guide rod; 16. Second fixed seat. Detailed Implementation
[0015] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figure 1-4 This utility model provides a technical solution: a three-dimensional bag sealing machine, including a machine body 1, a support 2 fixedly connected to the table of the machine body 1, a hydraulic rod 3 fixedly installed on the support 2, driving the lifting plate 5 to move up and down, thereby driving the heat sealing plate 6 to achieve pressing and retraction. The lifting plate 5 is fixedly connected to the free end of the hydraulic rod 3 and moves vertically up and down with the hydraulic rod 3. A first guide rod 4 is provided at its top, passing through the support 2 to form a guide structure to ensure that the lifting process is stable and does not deviate. The heat sealing plate 6 is arranged on both sides of the bottom of the lifting plate 5 along the length direction of the machine body 1, and is used to heat and seal the edge of the bag. An adjustment mechanism is installed in the lifting plate 5 to adjust the distance between the two sets of heat sealing plates 6. The distance between the two heat sealing plates 6 is adjustable to adapt to bags of different sizes. The main function of the adjustment mechanism is to automatically adjust the lateral distance between the two heat sealing plates 6 through the drive of the motor 7, thereby adapting to the sealing requirements of three-dimensional bags of different widths.
[0017] Specifically, such as Figure 3 and Figure 4As shown, the adjusting mechanism includes: a bidirectional lead screw 10 rotatably mounted in a through groove 501 on a lifting plate 5, rotatable but axially fixed, with its threads having left and right helical directions, and the threads at both ends having opposite helical directions; a motor 7 fixedly mounted on the lifting plate 5, the output shaft of the motor 7 being drivenly connected to one end of the bidirectional lead screw 10 to provide rotational power; sliders 11 sleeved on the threaded sections at both ends of the bidirectional lead screw 10, and when the lead screw rotates, the two sliders 11 move synchronously towards or away from each other along the axis of the lead screw (depending on the direction of rotation); two sets of first connecting rods 12 are rotatably connected to one side of the two sets of sliders 11 respectively, and the free ends of the first connecting rods 12 are respectively connected to the same set of The heat-sealing plate 6 is rotatably connected, and two sets of second connecting rods 13 are rotatably connected to the other side of the two sets of sliders 11 respectively. The free ends of the second connecting rods 13 are rotatably connected to another set of heat-sealing plates 6, forming a double parallel four-bar linkage mechanism. The first fixed seat 14 is fixedly connected to the guide sleeve 8, serving as one of the fulcrums for the rotation of the connecting rods. The second fixed seat 16 is fixedly connected to both sides of the slider 11, serving as the hinge point for the connecting rods on the other side. The first fixed seat 14 and the second fixed seat 16 are rotatably engaged with the connecting rods between them through rotating shafts. All connecting rods are rotatably engaged with the fixed seats through rotating shafts, forming a multi-degree-of-freedom hinge mechanism to ensure smooth movement. When changing to different specifications of bag bodies, the spacing of the heat-sealing plates 6 can be quickly changed simply by adjusting the bidirectional lead screw 10 through the motor 7, without the need for manual mold replacement or mechanical structure adjustment, significantly improving production efficiency and equipment flexibility.
[0018] Specifically, such as Figure 3 and Figure 4 As shown, the adjustment mechanism also includes: a guide sleeve 8 slidingly engaging with a groove 502 on the lifting plate 5, the groove 502 being arranged along the width direction of the machine body 1 to allow the guide sleeve 8 to slide laterally; the guide sleeve 8 engaging vertically with the heat sealing plate 6 to ensure the heat sealing plate 6 remains stable during lifting and preventing swaying; the bottom end of the second guide rod 15 passes through the guide sleeve 8 and is fixedly connected to both sides of the top of the heat sealing plate 6 to form a vertical guide rod, further enhancing the stability of the lifting and lowering of the heat sealing plate 6; a spring 9 is fixedly sleeved on the second guide rod 15, with both ends of the spring 9 fixedly connected to the guide sleeve 8 and the heat sealing plate 6 respectively, providing pre-tightening force to help the heat sealing plate 6 rebound after heat sealing, and also buffering pressure during the sealing process to avoid damage to the bag or equipment.
[0019] Working principle: During use, the lifting plate 5 is in the upper standby position, and the heat sealing plate 6 is not in contact with the workpiece. According to the width of the bag to be processed, the system automatically or manually starts the motor 7 to adjust the spacing of the heat sealing plates 6. The motor 7 drives the bidirectional lead screw 10 to rotate, driving the two sliders 11 to move synchronously inward or outward along the lead screw. The sliders 11 drive the first connecting rod 12 and the second connecting rod 13 to swing, pushing or pulling the heat sealing plates 6 on both sides to move laterally. The guide sleeve 8 slides in the slide groove 502, cooperating with the second guide rod 15 to ensure that the heat sealing plates 6 move smoothly during the translation process. Finally, the two heat sealing plates 6 are adjusted to the target spacing and are ready to be sealed. Hydraulic rod 3 moves downward, causing lifting plate 5 and heat sealing plate 6 to press down as a whole. Heat sealing plate 6 contacts the edge of the bag, and heating element (not shown) is energized to heat and complete the heat-melt sealing. Spring 9 is compressed to absorb part of the impact force and ensure uniform sealing pressure. After sealing is completed, hydraulic rod 3 rises, spring 9 returns to its original position, and heat sealing plate 6 returns to its original position.
[0020] 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 three-dimensional bag making and sealing machine, comprising a machine body (1), wherein a support (2) is fixedly connected to the table surface of the machine body (1), characterized in that, Also includes: The hydraulic rod (3) is fixedly installed on the bracket (2); The lifting plate (5) is fixedly connected to the free end of the hydraulic rod (3); The heat-sealing plate (6) is arranged along the length of the machine body (1) on both sides of the bottom of the lifting plate (5); The spacing adjustment mechanism is installed inside the lifting plate (5) and is used to adjust the spacing between the two sets of heat-sealing plates (6).
2. The three-dimensional bag-making and sealing machine according to claim 1, characterized in that, The adjusting mechanism includes: A two-way lead screw (10) is rotatably installed in a through groove (501) on a lifting plate (5); The motor (7) is fixedly installed on the lifting plate (5), and the output shaft of the motor (7) is connected to one end of the double-acting screw (10) for transmission. The slider (11) is sleeved on both ends of the bidirectional lead screw (10); Two sets of first connecting rods (12) are rotatably connected to one side of two sets of sliders (11), and the free ends of the first connecting rods (12) are rotatably connected to the same set of heat sealing plates (6); Two sets of second connecting rods (13) are rotatably connected to the other side of two sets of sliders (11), and the free ends of the second connecting rods (13) are rotatably connected to another set of heat-sealing plates (6).
3. The three-dimensional bag-making and sealing machine according to claim 2, characterized in that, The adjusting mechanism further includes: The guide sleeve (8) slides in cooperation with the slide groove (502) on the lifting plate (5). The slide groove (502) is arranged along the width direction of the machine body (1). The guide sleeve (8) and the heat sealing plate (6) are guided in a vertical direction.
4. A three-dimensional bag-making and sealing machine according to claim 3, characterized in that, The adjusting mechanism further includes: The second guide rod (15) passes through the guide sleeve (8) and is fixedly connected to the top two sides of the heat-sealing plate (6); The spring (9) is fixedly sleeved on the second guide rod (15), and its two ends are fixedly connected to the guide sleeve (8) and the heat sealing plate (6) respectively.
5. A three-dimensional bag-making and sealing machine according to claim 4, characterized in that, The adjusting mechanism further includes: The first fixed seat (14) is fixedly connected to the guide sleeve (8); The second fixed seat (16) is fixedly connected to both sides of the slider (11); The first fixed seat (14) and the second fixed seat (16) are rotatably connected to the connecting rod between them via a rotating shaft.
6. A three-dimensional bag-making and sealing machine according to claim 5, characterized in that, The top of the lifting plate (5) is fixedly connected with a first guide rod (4) that passes through the bracket (2).