A feeding mechanism for a packaging machine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXUKE (XIAMEN) NEW MATERIALS CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-21
Smart Images
Figure CN224529206U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of packaging processing equipment technology, and in particular to a packaging feeding mechanism. Background Technology
[0002] Packaging bags are bags used to package various products, making it convenient to transport and store goods during the production and distribution process. They are widely used in daily life and industrial production.
[0003] However, most existing packaging feeding mechanisms are fixed feeding devices that cannot be adjusted according to the actual feeding situation of the packaging. As the equipment continues to run, the diameter of the packaging roll will gradually shrink. Since it cannot be adjusted according to the feeding situation of the packaging, the tension of the packaging roll changes during feeding, which in turn causes the packaging roll to wrinkle during feeding. Utility Model Content
[0004] The purpose of this application is to provide a packaging feeding mechanism that has the advantages of adaptive roll diameter and prevention of roll wrinkling during feeding. It solves the problem that most existing packaging feeding mechanisms are fixed feeding devices that cannot be adjusted according to the actual feeding situation of the packaging. As the equipment continues to run, the diameter of the packaging roll will gradually decrease. Since it cannot be adjusted according to the feeding situation of the packaging, the tension of the packaging roll changes during feeding, which in turn causes the packaging roll to wrinkle during feeding.
[0005] The packaging feeding mechanism provided in this application adopts the following technical solution: A packaging feeding mechanism includes a base plate, two telescopic arms, and a rotating shaft. Vertical plates are fixedly connected to both upper sides of the base plate. Support plates are fixedly connected to one side of each of the two vertical plates. First slots are provided inside each of the two support plates. Two mirror-distributed limiting slots are provided at the upper and lower ends of each of the two first slots. Pneumatic push rods are fixedly connected to one side of each of the two support plates. Two mirror-distributed limiting blocks are fixedly connected to one side of each of the upper and lower ends of each of the two telescopic arms. A fixing plate is fixedly connected to one side of each of the fixing plates. A motor is fixedly connected to one side of the fixing plate. A drive gear is fixedly connected to the output end of each motor. Mounting slots are provided inside one side of each of the two telescopic arms. A driven gear is fixedly connected to one side of the outer wall of the rotating shaft.
[0006] A rotating seat is fixedly connected to one side of the upper end of each of the two upright plates. A rotating rod is rotatably connected between the two rotating seats. A sliding sleeve is slidably provided on the outer wall of the rotating rod. A support arm is fixedly connected to the outer wall of the sliding sleeve. Two rollers arranged in a mirror image are rotatably provided at the end of the support arm away from the sliding sleeve. A rotation position sensor is fixedly connected to the upper end of one side of the upright plate.
[0007] By adopting the above technical solution, through the setting of pneumatic push rod, first slot, telescopic arm, and rotational position sensor, the pneumatic push rod drives the telescopic arm to slide within the first slot. Combined with the limiting blocks at the upper and lower ends, this ensures precise guidance during the telescopic process and allows adjustment of the shaft position according to the roll diameter. This stabilizes the roll stretching distance during feeding, reduces tension variations, and prevents wrinkles from forming during feeding. In use, after the packaging roll is inserted into the shaft, the telescopic arm is adjusted to fit the roll width using the pneumatic push rod, and the rollers press against the outer wall of the roll. As the roll continues to enter, its diameter gradually... The reduction in diameter leads to a longer distance between the roll and the feeding structure, which in turn causes changes in the tension of the roll during feeding. Since the roller at the end of the support arm is always pressed against the outer wall of the roll, as the roll diameter gradually decreases, the rotating rod rotates due to the downward movement of the roller. The rotation position sensor detects the rotation angle in real time and feeds the signal back to the control system, driving the pneumatic push rod to synchronously retract the telescopic arm, so that the distance between the roll and the feeding structure remains consistent, reducing tension changes and avoiding the problems of slack or overstretching caused by the reduction in the roll diameter in traditional mechanisms. This makes the roll feeding process more stable and smooth.
[0008] Preferably, a feeding roller is rotatably connected to one side of the upper end between the two upright plates, a guide roller is rotatably connected to the bottom end between the two upright plates, a second sliding groove is provided inside each of the two upright plates, two sliding rods arranged in a mirror image are fixedly connected inside each of the two second sliding grooves, and a moving block is slidably provided on the outer wall of each of the four sliding rods in pairs, two springs arranged in a mirror image are fixedly connected to the bottom end of each of the two moving blocks, and the ends of the four springs away from the moving blocks are fixedly connected to the second sliding grooves, a floating roller is rotatably connected between the two moving blocks, and a discharge roller is rotatably connected to the upper end of the two upright plates away from the feeding roller.
[0009] By adopting the above technical solution, a transmission path is formed by the feed roller, guide roller and floating roller. The two ends of the floating roller are slidably connected to the slide bar through the moving block and the spring provides elastic force. When the tension of the roll increases, the floating roller is squeezed, which in turn squeezes the spring, causing the floating roller to move down, thereby offsetting the increased tension. When the tension decreases, the spring pushes the floating roller up to tighten the roll and compensate for the change in tension.
[0010] Preferably, a controller is fixedly connected to one side of the upright plate.
[0011] By adopting the above technical solution, the controller, as the signal processing and control device of the device, can receive the rotation angle signal from the rotation position sensor, process it, and then control the extension and retraction of the pneumatic push rod and the motor speed, so as to realize the adaptive adjustment of the tension of the equipment after the diameter of the roll material is reduced.
[0012] Preferably, both telescopic arms are slidably disposed inside the first slot, and the plurality of limiting blocks are slidably disposed inside the limiting groove.
[0013] By adopting the above technical solution, one side of the telescopic arm is slidably set inside the first slot to form a guide, and the limiting block and the limiting groove limit the length of the telescopic arm to prevent the telescopic arm from coming out of the first slot.
[0014] Preferably, the output ends of both pneumatic push rods are fixedly connected to the fixed plate.
[0015] By adopting the above technical solution, the pneumatic push rod moves after receiving the command from the controller, and drives the telescopic arm to move in the first slot by pushing the fixed plate, thereby adjusting the distance between the rotating shaft and the feeding structure.
[0016] Preferably, the output end of the rotation position sensor is fixedly connected to one side of the rotating rod.
[0017] By adopting the above technical solution, since the roller at one end of the support arm is always pressed against the outer wall of the roll, during feeding, as the roll decreases, the support arm drives the rotating rod to rotate, which in turn drives the output end of the rotation position sensor to rotate.
[0018] Preferably, the rotating shaft is rotatably disposed inside the mounting groove, and the driven gear meshes with the driving gear.
[0019] By adopting the above technical solution, the rotating shaft is installed in the mounting groove, and the driven gear and the driving gear are meshed. The motor drives the driving gear to rotate, and the driving gear drives the driven gear to rotate, causing the rotating shaft to rotate, thereby achieving stable feeding.
[0020] Preferably, the controller is electrically connected to the rotational position sensor.
[0021] By adopting the above technical solution, the data detected by the rotary position sensor is transmitted to the controller, and after processing by the controller, it is converted into the extension and retraction distance of the pneumatic push rod.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] This packaging feeding mechanism uses a pneumatic pusher to drive a telescopic arm to move. Combined with a guide and limiting mechanism using a first slot and a limiting block, the position of the rotating shaft can be adjusted according to the roll diameter. A rotational position sensor monitors changes in the roll diameter in real time, and a controller intelligently adjusts the stroke of the pneumatic pusher to maintain a constant distance between the rotating shaft and the feeding end. This solves the tension fluctuation problem caused by the reduction in roll diameter in traditional mechanisms. The floating roller achieves adaptive tension adjustment through spring buffering, automatically raising and lowering to compensate for changes in roll tension. The pressing of the rotating rod and roller enables real-time tracking of the roll's outer diameter, maintaining optimal feeding tension without manual intervention. This avoids problems such as roll wrinkles and stretching deformation, thus ensuring feeding stability. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this application;
[0025] Figure 2 This is a schematic diagram of the roll diameter detection structure of this application;
[0026] Figure 3 This is a schematic diagram of the shaft mounting structure of this application.
[0027] Figure 4 This is a schematic diagram of the conveying structure of this application;
[0028] Figure 5 This is a schematic diagram of the telescopic arm installation of the structure in this application.
[0029] In the picture:
[0030] 1. Base plate; 2. Vertical plate; 3. Support plate; 4. First slot; 5. Limiting slot; 6. Pneumatic push rod; 7. Telescopic arm; 8. Limiting block; 9. Fixing plate; 10. Motor; 11. Drive gear; 12. Mounting slot; 13. Rotating shaft; 14. Driven gear; 15. Rotating seat; 16. Rotating rod; 17. Sliding sleeve; 18. Support arm; 19. Roller; 20. Rotational position sensor; 21. Feed roller; 22. Guide roller; 23. Second slide groove; 24. Sliding rod; 25. Spring; 26. Moving block; 27. Floating roller; 28. Discharge roller; 29. Controller. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.
[0032] Example 1: A packaging feeding mechanism, referring to... Figure 1 , Figure 2 and Figure 3The device includes a base plate 1, two telescopic arms 7, and a rotating shaft 13. Vertical plates 2 are fixedly connected to both sides of the upper end of the base plate 1. Support plates 3 are fixedly connected to one side of each of the two vertical plates 2. Each support plate 3 has a first slot 4 inside. Two mirror-distributed limiting slots 5 are opened at both the upper and lower ends of each of the two first slots 4. A pneumatic push rod 6 is fixedly connected to one side of each of the two support plates 3. The pneumatic push rod 6 drives the telescopic arms 7 to slide within the first slots 4, ensuring precise guidance during the telescopic process and adjusting the position of the rotating shaft 13 according to the roll diameter. This stabilizes the roll stretching distance during feeding, reduces tension variations, and prevents wrinkles in the roll during feeding. Two mirror-distributed limiting blocks 8 are fixedly connected to one side of each of the upper and lower ends of the two telescopic arms 7. A fixing plate 9 is fixedly connected to one side of each of the two telescopic arms 7. A motor 10 is fixedly connected to one side of each fixing plate 9. A drive gear 11 is fixedly connected to the output end of each motor 10. The drive gear 11 is driven by the motor 10, providing power to the feeding device. Each of the two upright plates 2 has a mounting groove 12 on one side. A driven gear 14 is fixedly connected to one side of the outer wall of the rotating shaft 13. A rotating seat 15 is fixedly connected to one side of the upper end of each of the two upright plates 2. A rotating rod 16 is rotatably connected between the two rotating seats 15. A sliding sleeve 17 is slidably provided on the outer wall of the rotating rod 16. A support arm 18 is fixedly connected to the outer wall of the sliding sleeve 17. Two rollers 19 are rotatably provided at the end of the support arm 18 away from the sliding sleeve 17. A rotation position sensor 20 is fixedly connected to the upper end of one side of the upright plate 2. Since the rollers 19 at the end of the support arm 18 are always pressed against the outer wall of the roll material, when the diameter of the roll material gradually decreases, the rotating rod 16 rotates due to the downward movement of the rollers 19. The rotation position sensor 20 detects the rotation angle in real time and feeds the signal back to the control system, driving the pneumatic push rod 6 to synchronously retract the telescopic arm 7, so that the distance between the roll material and the feeding structure remains consistent, reducing tension changes and avoiding the problem of loosening or overstretching caused by the reduction of the roll material diameter in traditional mechanisms. This makes the roll material feeding process more stable and smooth.
[0033] Example 2: A packaging feeding mechanism, referring to... Figure 1 , Figure 4 and Figure 5A feed roller 21 is rotatably connected to one side of the upper end between the two upright plates 2. A guide roller 22 is rotatably connected to the bottom end between the two upright plates 2. Each of the two upright plates 2 has a second slide groove 23 inside. Two slide rods 24 arranged in a mirror image are fixedly connected inside each of the two second slide grooves 23. Moving blocks 26 are slidably arranged on the outer wall of each of the four slide rods 24 in pairs. Two springs 25 arranged in a mirror image are fixedly connected to the bottom end of each of the two moving blocks 26. The ends of the four springs 25 away from the moving blocks 26 are fixedly connected to the second slide grooves 23. A floating roller 27 is rotatably connected between the two moving blocks 26. A discharge roller 28 is rotatably connected to the upper end of the two upright plates 2 away from the feed roller 21. The feed roller 21 works in conjunction with the guide roller 22 and the floating roller 27 to complete the process. The moving roller 27 forms the transmission path. The two ends of the floating roller 27 are slidably connected to the slide bar 24 via moving blocks 26, and are provided with elastic force by springs 25. When the tension of the roll material increases, the floating roller 27 is compressed, which in turn compresses the spring 25, causing the floating roller 27 to move downwards, thus offsetting the increased tension. When the tension decreases, the spring 25 pushes the floating roller 27 upwards to tighten the roll material and compensate for the tension change. A controller 29 is fixedly connected to one side of a vertical plate 2. The controller 29 serves as the signal processing and control device of the device, receiving and processing the rotation angle signal from the rotational position sensor 20, thereby controlling the extension and retraction of the pneumatic push rod 6 and the speed of the motor 10, enabling the equipment to adaptively adjust the tension after the roll material diameter decreases. Two telescopic arms... The telescopic arm 7 is slidably disposed inside the first slot 4, and multiple limiting blocks 8 are slidably disposed inside the limiting groove 5. One side of the telescopic arm 7 is slidably disposed inside the first slot 4 to form a guide. The limiting blocks 8 and the limiting groove 5 limit the extension length of the telescopic arm 7 to prevent the telescopic arm 7 from coming out of the first slot 4. The output ends of the two pneumatic push rods 6 are fixedly connected to the fixed plate 9. After receiving the command from the controller 29, the pneumatic push rod 6 moves, pushing the fixed plate 9 and thus driving the telescopic arm 7 to move within the first slot 4, adjusting the distance between the rotating shaft 13 and the feeding structure. The output end of the rotation position sensor 20 is fixedly connected to one side of the rotating rod 16. Since the roller 19 at one end of the support arm 18 is always pressed against the outer wall of the roll material, during feeding... As the roll material decreases, the support arm 18 drives the rotating rod 16 to rotate, which in turn drives the output end of the rotation position sensor 20 to rotate. The rotating shaft 13 is rotatably installed inside the mounting groove 12. The driven gear 14 meshes with the driving gear 11. By installing the rotating shaft 13 in the mounting groove 12 and meshing the driven gear 14 with the driving gear 11, the motor 10 drives the driving gear 11 to rotate. The driving gear 11 drives the driven gear 14 to rotate, causing the rotating shaft 13 to rotate, thereby achieving stable feeding. The controller 29 is electrically connected to the rotation position sensor 20. The data detected by the rotation position sensor 20 is transmitted to the controller 29. After processing by the controller 29, it is converted into the extension distance of the pneumatic push rod 6.
[0034] The implementation principle of this application embodiment is as follows:
[0035] First, the roll material is installed on the rotating shaft 13. The motor 10 drives the drive gear 11 to rotate, which in turn drives the rotating shaft 13 to rotate through meshing with the driven gear 14, thus releasing the roll material. The roller 19 at the end of the support arm 18 always presses against the outer wall of the roll material. As the diameter of the roll material decreases, the rotating rod 16 rotates due to the downward movement of the roller 19. The rotation position sensor 20 detects the rotation angle and feeds the signal back to the controller 29. The controller 29 drives the pneumatic push rod 6 to synchronously retract the telescopic arm 7. The pneumatic push rod 6 pushes the telescopic arm 7 to slide in the first slot 4 of the support plate 3. The limiting block 8 cooperates with the limiting groove 5 to ensure stable telescopic movement and prevent... To prevent the roll from slipping out, the position of the rotating shaft 13 is adjusted to ensure a stable distance between the roll and the feeding structure, maintaining stable roll tension. The roll enters through the feeding roller 21 and is transported under the guidance of the guide roller 22. The moving blocks 26 at both ends of the floating roller 27 slide along the slide bar 24, and the spring 25 provides elastic force. When the tension increases, the floating roller 27 is pressed down to offset the tension; when the tension decreases, the spring 25 pushes it up to tighten the roll, further stabilizing the tension. Finally, the roll is smoothly output through the discharge roller 28, thereby achieving stable feeding of the roll and avoiding slack or overstretching caused by tension changes, ensuring a smooth packaging feeding process.
[0036] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.
Claims
1. A packaging feeding mechanism, comprising a base plate (1), two telescopic arms (7) and a rotating shaft (13), characterized in that: The base plate (1) is fixedly connected to two upright plates (2) on both sides of the upper end. The two upright plates (2) are fixedly connected to one side of a support plate (3). The two support plates (3) are provided with a first slot (4) inside. The two first slots (4) are provided with two limit slots (5) arranged in a mirror distribution at both the upper and lower ends. The two support plates (3) are fixedly connected to one side of a pneumatic push rod (6). The two telescopic arms (7) are fixedly connected to one side of both the upper and lower ends of two limit blocks (8) arranged in a mirror distribution at both the upper and lower ends. The two telescopic arms (7) are fixedly connected to one side of a fixed plate (9). The fixed plate (9) is fixedly connected to one side of a motor (10). The output end of the motor (10) is fixedly connected to a drive gear (11). The two telescopic arms (7) are provided with an installation slot (12) inside one side. The rotating shaft (13) is fixedly connected to one side of a driven gear (14). A rotating seat (15) is fixedly connected to one side of the upper end of each of the two upright plates (2). A rotating rod (16) is rotatably connected between the two rotating seats (15). A sliding sleeve (17) is slidably provided on the outer wall of the rotating rod (16). A support arm (18) is fixedly connected to the outer wall of the sliding sleeve (17). Two rollers (19) are rotatably provided at the end of the support arm (18) away from the sliding sleeve (17). A rotation position sensor (20) is fixedly connected to the upper end of one of the upright plates (2).
2. The packaging feeding mechanism according to claim 1, characterized in that: A feeding roller (21) is rotatably connected to one side of the upper end between the two upright plates (2), and a guide roller (22) is rotatably connected to the bottom end between the two upright plates (2). A second sliding groove (23) is opened inside each of the two upright plates (2). Two sliding rods (24) arranged in a mirror image are fixedly connected inside each of the two second sliding grooves (23). Moving blocks (26) are slidably arranged on the outer wall of each pair of the four sliding rods (24). Two springs (25) arranged in a mirror image are fixedly connected to the bottom end of the two moving blocks (26). The ends of the four springs (25) away from the moving blocks (26) are fixedly connected to the second sliding groove (23). A floating roller (27) is rotatably connected between the two moving blocks (26). A discharge roller (28) is rotatably connected to the upper end of the two upright plates (2) away from the feeding roller (21).
3. The packaging feeding mechanism according to claim 1, characterized in that: A controller (29) is fixedly connected to one side of the upright plate (2).
4. The packaging feeding mechanism according to claim 1, characterized in that: Both of the telescopic arms (7) are slidably disposed inside the first slot (4), and the multiple limiting blocks (8) are slidably disposed inside the limiting groove (5).
5. The packaging feeding mechanism according to claim 1, characterized in that: The output ends of both pneumatic push rods (6) are fixedly connected to the fixed plate (9).
6. The packaging feeding mechanism according to claim 1, characterized in that: The output end of the rotary position sensor (20) is fixedly connected to one side of the rotating rod (16).
7. The packaging feeding mechanism according to claim 1, characterized in that: The rotating shaft (13) is rotatably disposed inside the mounting groove (12), and the driven gear (14) meshes with the driving gear (11).
8. The packaging feeding mechanism according to claim 3, characterized in that: The controller (29) is electrically connected to the rotational position sensor (20).