A double layer bag making machine device
By introducing tension plate and correction plate structures into the double-layer bag making machine, the problems of uneven force and positional deviation of the composite film are solved, achieving stable film material conveying and precise heat sealing, reducing scrap rate and equipment wear, and ensuring continuous and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN XINJIAXIANG IND & TRADE CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-24
AI Technical Summary
The existing double-layer bag making machine lacks tension control and correction devices during operation, which leads to uneven stress on the composite film and positional deviation, causing problems such as film stretching and deformation, heat sealing misalignment, sealing leakage, pattern cutting crookedness, and material accumulation jamming, resulting in high scrap rate and frequent shutdowns.
The structure employs a tension plate and a correction plate. The tension plate maintains constant tension in the composite membrane, while the correction plate precisely corrects the membrane material's deviation. Combined with a smoothing structure, it eliminates wrinkles on the membrane surface, ensuring the stability and precise position control of the membrane material during processing.
Significantly reduces scrap rate, minimizes unplanned downtime, avoids equipment wear and tear, and ensures continuous, stable, efficient, and controllable production processes.
Smart Images
Figure CN224545477U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bag making machine devices, and in particular to a double-layer bag making machine device. Background Technology
[0002] A double-layer bag-making machine is an automated industrial device specifically designed for producing pre-laminated double-layer composite film bags. Through precise control of the double-layer film unwinding, heat-sealing temperature (for the inner heat-sealing material), and synchronous cutting processes, it continuously processes the composite film into packaging bags with high sealing performance, strong barrier properties, or special appearance requirements. These bags are widely used in high-end flexible packaging fields such as food, pharmaceuticals, and electronics, which require moisture-proof, light-proof, and preservation functions.
[0003] Typically, during the operation of a double-layer bag making machine, the lack of tension control and correction devices can lead to uneven stress and positional deviation of the composite film, resulting in problems such as film stretching and deformation, misaligned heat sealing, air leakage at the seal, miscut patterns, and material accumulation that can cause jamming. Ultimately, this can lead to high scrap rates, frequent shutdowns, and even equipment damage, causing production to become completely out of control. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a double-layer bag making machine device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A double-layer bag-making machine includes a worktable with a mounting groove fixedly installed on it. A fixed roller is fixedly connected to the mounting groove, and raw material is fixedly wound on the fixed roller. A motor base is fixedly connected to the mounting groove, and a motor is fixedly installed on the motor base. A fixed cam is fixedly sleeved on the output shaft of the motor. A fixed plate is fixedly connected to the mounting groove, and a telescopic rod is fixedly connected to the fixed plate. A return spring is fixedly installed between the inner walls of the telescopic rod. A correction plate is fixedly connected to the telescopic rod, and the inner wall of the correction plate abuts against both sides of the raw material. A smoothing structure is installed on the worktable, and a heat-sealing center seam device and a cutting device are fixedly installed on the mounting groove.
[0007] Preferably, the smoothing structure includes a connecting plate fixedly mounted on a mounting groove, a fixed worm gear rotatably connected to the connecting plate, a transmission shaft rotatably connected between the connecting plates, the fixed worm gear passing through the connecting plate and fixedly connected to the corresponding transmission shaft, the fixed worm gear being driven by a first belt drive device to the output shaft of the motor, a fixed shaft rotatably connected to the connecting plate, a tension plate being fixedly connected to the top end of the fixed shaft, a connecting shaft rotatably connected to the connecting plate, a fixed worm wheel being fixedly sleeved on the connecting shaft, the fixed worm gear meshing with the fixed worm wheel, and the fixed shaft and the connecting shaft being rotatably connected by a second belt drive device.
[0008] Preferably, the surface of the conveyor shaft is in contact with the raw material, and the surface of the conveyor shaft is treated with a sanding process.
[0009] Preferably, the tension plate has a smoothing groove, and the raw material passes through the inner wall of the smoothing groove.
[0010] Preferably, both the correction plate and the outer side of the fixed cam are fixedly sleeved with protective layers, the sidewall of the correction plate is L-shaped, and the bottom end of the correction plate is flush with the raw material.
[0011] Preferably, a drive device is fixedly installed on the fixed roller, and a power cord is fixedly installed on the worktable.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the device is equipped with a tension plate and a correction plate, which can effectively ensure constant tension of the composite film and accurate material feeding trajectory, eliminate the hidden dangers such as film stretching deformation, misalignment of heat sealing position, failure of sealing airtightness, distorted cutting of printed patterns and material accumulation jamming caused by uneven force, thereby significantly reducing scrap rate, reducing unplanned downtime, avoiding abnormal equipment wear, and ensuring continuous, stable and highly controllable production process. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of a double-layer bag-making machine device proposed in this utility model;
[0014] Figure 2 This is a three-dimensional structural diagram of the tension control plate of a double-layer bag making machine device proposed in this utility model.
[0015] Figure 3 This is a three-dimensional structural diagram of the correction plate of a double-layer bag making machine device proposed in this utility model;
[0016] Figure 4 This is a three-dimensional structural diagram of the worm gear of a double-layer bag making machine device proposed in this utility model.
[0017] In the diagram: 1. Workbench, 2. Mounting slot, 3. Fixed roller, 4. Motor, 5. Motor base, 6. Fixed plate, 7. Telescopic rod, 8. Correction plate, 9. Fixed worm gear, 10. Fixed worm wheel, 11. Connecting plate, 12. Transmission shaft, 13. Tension plate, 14. First belt drive device, 15. Second belt drive device, 16. Fixed cam, 17. Return spring. Detailed Implementation
[0018] Reference Figures 1-4 A double-layer bag making machine includes a worktable 1, an installation groove 2 fixedly installed on the worktable 1, a fixed roller 3 fixedly connected to the installation groove 2, raw material fixedly wound on the fixed roller 3, a motor base 5 fixedly connected to the installation groove 2, a motor 4 fixedly installed on the motor base 5, a fixed cam 16 fixedly sleeved on the output shaft of the motor 4, a fixed plate 6 fixedly connected to the installation groove 2, a telescopic rod 7 fixedly connected to the fixed plate 6, a return spring 17 fixedly installed between the inner walls of the telescopic rod 7, a correction plate 8 fixedly connected to the telescopic rod 7, the inner wall of the correction plate 8 abutting against both sides of the raw material, a smoothing structure installed on the worktable 1, and a heat-sealing center seam device and a shearing device fixedly installed on the installation groove 2. The heat-sealing center seam device and the shearing device are both existing technologies. The heat-sealing center seam device is used to seal both sides of the raw material, while the shearing device is used to cut the raw material and perform transverse heat sealing, thereby completing the bag manufacturing.
[0019] The raw material is installed on the fixed roller 3, then the material is pulled out and passed through the conveyor shaft 12, then through the tension plate 13, and finally through the heat sealing seam device and the shearing device fixedly installed on the mounting groove 2. After the raw material is positioned, the motor 4 is started to run. The fixed cam 16 rotates together under the drive of the output shaft of the motor 4. When the fixed cam 16 rotates, it will squeeze the correction plate 8 to move it. At the same time, the return spring 17 deforms. As the fixed cam 16 continues to rotate, the cam of the return spring 17 makes the correction plate 8 return to its original position, so that the correction plate 8 moves back and forth. The back and forth movement of the correction plate 8 pushes the two sides of the raw material, which achieves the effect of correcting the deviation of the raw material.
[0020] The smoothing structure includes a connecting plate 11 fixedly installed on the mounting groove 2. A fixed worm 9 is rotatably connected to the connecting plate 11. A transmission shaft 12 is rotatably connected between the connecting plates 11. The fixed worm 9 passes through the connecting plate 11 and is fixedly connected to the corresponding transmission shaft 12. The fixed worm 9 is connected to the output shaft of the motor 4 through a first belt drive device 14. A fixed shaft is rotatably connected to the connecting plate 11. A tension plate 13 is fixedly connected to the top of the fixed shaft. A connecting shaft is also rotatably connected to the connecting plate 11. A fixed worm wheel 10 is fixedly sleeved on the connecting shaft. The fixed worm 9 meshes with the fixed worm wheel 10. The fixed shaft and the connecting shaft are rotatably connected through a second belt drive device 15.
[0021] Under the action of the first belt drive device 14, the output shaft of the motor 4 drives the fixed worm 9 to rotate. The fixed worm 9 drives the transmission shaft 12, which is fixedly sleeved on its outer side, to rotate together. The friction between the transmission shaft 12 and the raw material causes the raw material to move and be transported. At the same time, the rotation of the fixed worm 9 will drive the fixed worm wheel 10 meshing with it to rotate. Under the action of the second belt drive device 15, the fixed worm 9 drives the rotating shaft on the tension plate 13 to rotate, so that the tension plate 13 also rotates together. The rotation of the tension plate 13 smooths the surface of the raw material and avoids wrinkles on the surface of the raw material.
[0022] The surface of the conveyor shaft 12 abuts against the raw material, and the surface of the conveyor shaft 12 is sanded to increase the friction between the conveyor shaft 12 and the raw material, so as to facilitate the conveyor shaft 12 to transport the raw material.
[0023] The tension plate 13 has a smoothing groove, through which the raw material passes. The inner wall of the smoothing groove is located on the upper and lower sides of the raw material to recirculate it.
[0024] The outer sides of both the correction plate 8 and the fixed cam 16 are fixedly fitted with protective layers to protect the correction plate 8 and the fixed cam 16 and prevent them from being damaged. The side wall of the correction plate 8 is "L" shaped, and the bottom end of the correction plate 8 is flush with the raw material, supporting the raw material from below to facilitate the correction of the raw material and prevent it from being damaged.
[0025] A drive device is fixedly installed on the fixed roller 3. The drive device is used to drive the rotation of the fixed roller 3. A power cord is fixedly installed on the worktable 1 to provide electrical energy.
[0026] In this invention, the raw material is first installed on the fixed roller 3, then pulled out and passed through the conveyor shaft 12 and then through the tension plate 13, and finally through the heat-sealing center seam device and the shearing device fixedly installed on the mounting groove 2. After the raw material is aligned, the motor 4 is started. The fixed cam 16 rotates together with the motor 4 under the drive of the output shaft. When the fixed cam 16 rotates, it will squeeze the correction plate 8 to move it. At the same time, the return spring 17 deforms. As the fixed cam 16 continues to rotate, the cam of the return spring 17 makes the correction plate 8 return to its original position, so that the correction plate 8 moves back and forth. The back and forth movement of the correction plate 8 adjusts the two sides of the raw material. The pushing action corrects the deviation of the raw material. Under the action of the first belt drive device 14, the output shaft of the motor 4 drives the fixed worm 9 to rotate. The fixed worm 9 drives the transmission shaft 12, which is fixedly sleeved on its outer side, to rotate together. The friction between the transmission shaft 12 and the raw material causes the raw material to move and be transported. At the same time, the rotation of the fixed worm 9 will drive the fixed worm wheel 10, which meshes with it, to rotate. Under the action of the second belt drive device 15, the fixed worm 9 drives the rotating shaft on the tension plate 13 to rotate, so that the tension plate 13 also rotates together. The rotation of the tension plate 13 smooths the surface of the raw material and prevents wrinkles from appearing on the surface of the raw material.
Claims
1. A double-layer bag-making machine device, comprising a worktable (1), characterized in that, The workbench (1) is fixedly equipped with an installation groove (2), a fixed roller (3) is fixedly connected to the installation groove (2), and raw material is fixedly wound on the fixed roller (3). The installation groove (2) is fixedly connected with a motor base (5), and a motor (4) is fixedly installed on the motor base (5). A fixed cam (16) is fixedly sleeved on the output shaft of the motor (4). The installation groove (2) is fixedly connected with a fixed plate (6), and a telescopic rod (7) is fixedly connected to the fixed plate (6). A return spring (17) is fixedly installed between the inner walls of the telescopic rod (7). A correction plate (8) is fixedly connected to the telescopic rod (7), and the inner wall of the correction plate (8) abuts against both sides of the raw material. A smoothing structure is installed on the workbench (1).
2. The double-layer bag-making machine device according to claim 1, characterized in that, The smoothing structure includes a connecting plate (11) fixedly installed on the mounting groove (2). A fixed worm (9) is rotatably connected to the connecting plate (11). A transmission shaft (12) is rotatably connected between the connecting plates (11). The fixed worm (9) passes through the connecting plate (11) and is fixedly connected to the corresponding transmission shaft (12). The fixed worm (9) is connected to the output shaft of the motor (4) via a first belt drive device (14). A fixed shaft is rotatably connected to the connecting plate (11). A tension plate (13) is fixedly connected to the top of the fixed shaft. A connecting shaft is also rotatably connected to the connecting plate (11). A fixed worm wheel (10) is fixedly sleeved on the connecting shaft. The fixed worm (9) meshes with the fixed worm wheel (10). The fixed shaft and the connecting shaft are rotatably connected via a second belt drive device (15).
3. The double-layer bag-making machine device according to claim 2, characterized in that, The surface of the conveyor shaft (12) is in contact with the raw material, and the surface of the conveyor shaft (12) is sanded.
4. The double-layer bag-making machine device according to claim 2, characterized in that, The tension plate (13) has a smoothing groove, and the raw material passes through the inner wall of the smoothing groove.
5. The double-layer bag-making machine device according to claim 1, characterized in that, The outer sides of the correction plate (8) and the fixed cam (16) are both fixedly sleeved with protective layers. The side wall of the correction plate (8) is "L" shaped, and the bottom end of the correction plate (8) is flush with the raw material.
6. The double-layer bag-making machine device according to claim 1, characterized in that, A drive device is fixedly installed on the fixed roller (3), and a power cord is fixedly installed on the worktable (1).