Fully automatic tube film packaging machine

Abstract

The application relates to the technical field of drum film packaging machines, and discloses a full-automatic drum film packaging machine which comprises a rack, symmetrical support plates are fixedly connected to one side of the rack, rotating shafts provided with drum film coiled materials are rotationally connected to the inside of the support plates, guide rollers one are arranged in the inside of the rack and the support plates, mounting seats are fixedly connected to the inner walls of one side of the rack, a rotating shaft is rotationally connected between the mounting seats, a worm wheel is fixedly connected to the outer wall of one end of the rotating shaft, a worm is meshingly connected to the tooth end of the worm wheel, a servo motor is fixedly connected to one end of the worm, adjusting arms are fixedly connected to the outer wall of the rotating shaft in a symmetrical mode, and adjusting rollers are rotationally connected to one end of the adjusting arms. The servo motor drives the worm to rotate, the rotating shaft drives the adjusting arms to synchronously swing, the adjusting arms drive the adjusting rollers to swing around the rotating shaft axis, the tension of the packaging film in the film running path is adjusted in real time, and the packaging film can be kept flat and not deviated during the conveying process.

Description

Technical Field

[0001] This invention relates to the field of tubular film packaging machine technology, specifically a fully automatic tubular film packaging machine. Background Technology

[0002] A tubular film packaging machine is an automated packaging equipment that uses tubular packaging film to directly complete packaging processes such as bag making, filling, and sealing. Compared with traditional vertical packaging machines, the biggest feature of a tubular film packaging machine is that it directly uses tubular film for bag making and packaging, eliminating the need for a collar forming device to form bags. This also eliminates the tedious operation of changing the forming device when changing bag width. In automated packaging production lines in industries such as hardware, tubular film packaging machines are required to package various materials.

[0003] In existing tubular film packaging machines, the tubular film is fed out as a roll of material and guided by guide rollers to the sealing and cutting device. The sealing and cutting device seals the bottom of the tubular film and cuts it to a fixed length to make a packaging bag with an open top. Then, the material is filled and the top is sealed.

[0004] The inventors of this application discovered in their research that the core defect of the aforementioned prior art is that existing tubular film packaging machines typically rely solely on fixed guide rollers for guidance and tensioning. When the traction mechanism pulls the film intermittently, the film tension will fluctuate violently due to unwinding inertia, changes in roll diameter, and fluctuations in film pulling speed. Excessive tension can easily lead to film stretching deformation and uneven thickness, affecting sealing strength. Insufficient tension may cause the film to loosen and deviate, resulting in bag size deviation. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a fully automatic tubular film packaging machine, which solves the problem that existing tubular film packaging machines typically rely solely on fixed guide rollers for guidance and tensioning. When the traction mechanism pulls the film intermittently, the film tension fluctuates drastically due to unwinding inertia, changes in roll diameter, and fluctuations in film pulling speed.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fully automatic tubular film packaging machine, comprising a frame, a support plate symmetrically fixedly connected to one side of the frame, a rotating shaft fitted with packaging film rolls rotatably connected inside the support plate, a guide roller provided inside both the frame and the support plate, mounting seats symmetrically fixedly connected to the inner wall of one side of the frame, a rotating shaft rotatably connected between the mounting seats, a worm gear fixedly connected to the outer wall of one end of the rotating shaft, a worm gear meshing with the tooth end of the worm gear, a servo motor fixedly connected to one end of the worm gear, one side of the servo motor mounted on one side of the mounting seat, and adjusting arms symmetrically fixedly connected to the outer wall of the rotating shaft, an adjusting roller rotatably connected to one end of the adjusting arm; The bottom of the other side of the frame is equipped with a lower sealing mechanism, an upper sealing mechanism, and a bag delivery mechanism. The lower sealing mechanism includes two lower sealing support seats that are fixedly connected to the bottom of the frame.

[0007] By adopting the above technical solution, a servo motor drives the worm gear to rotate, which in turn drives the worm wheel to rotate through meshing transmission. The worm wheel drives the rotating shaft to rotate between the mounting bases, and the rotating shaft drives the adjusting arms at both ends to swing synchronously. The adjusting arms drive the adjusting roller to swing around the axis of the rotating shaft, thereby adjusting the tension of the packaging film in real time along the film path. This ensures that the packaging film remains flat and does not deviate during the conveying process, and compensates for the tension fluctuations of the film material caused by the bag delivery action. It also ensures accurate alignment of the packaging film in the subsequent sealing processes. The self-locking characteristic of the worm gear transmission ensures that the adjusting roller can be stably maintained at the current angle and height after adjustment, without loosening due to reverse tension of the film material. This ensures that the film material is always in a uniform tension state throughout the film delivery process, avoiding loosening and wrinkling of the film material, or tearing and breaking due to excessive tension. This provides a stable film material foundation for subsequent fixed-length bag making.

[0008] Preferably, a lower sealing cylinder is installed on one side of each lower sealing support base. The output end of the lower sealing cylinder is fixedly connected to a lower sealing mold. A sliding block is fixedly connected to the bottom of the lower sealing mold. A lower sealing slide rail is slidably connected to the bottom of the sliding block. The bottom of the lower sealing slide rail is fixedly connected to the top of the lower sealing support base. A rodless cylinder is installed inside one of the lower sealing molds. A movable seat is slidably connected to the output end of the rodless cylinder. A cutting blade is installed on one side of the movable seat. The outer wall of the cutting blade is slidably connected to the middle of the lower sealing mold.

[0009] Preferably, the bag delivery mechanism includes two lifting slides symmetrically arranged on one side of the frame. Both ends of the two lifting slides are rotatably connected to connecting rods. A motor is installed on one side of one of the lifting slides. One end of one of the connecting rods is fixedly connected to the output end of the motor. A slider is slidably connected to the outer wall of both lifting slides. A linear slide is fixedly connected to one side of the slider. A pneumatic gripper is slidably connected inside the linear slide.

[0010] Preferably, a bidirectional lead screw equipped with a driving component is rotatably connected between the bottom two sides of one of the lower sealing support seats. The driving component of the bidirectional lead screw is installed on one side of the lower sealing support seat. Both ends of the bidirectional lead screw are threadedly connected to a movable plate. Both ends of the movable plate are slidably connected to a guide rod. The two ends of the guide rod are respectively fixedly connected to the inner walls of both sides of the lower sealing support seat. Limiting arms are fixedly connected to one side of both movable plates. Guide rollers are symmetrically fixedly connected to the bottom of one of the lower sealing support seats.

[0011] Preferably, the sealing mechanism includes two sealing support seats fixedly connected to the top of the frame. A sealing cylinder is installed on one side of each of the two sealing support seats. The output end of the sealing cylinder is fixedly connected to a sealing mold. A sealing slide rail is slidably connected to the bottom of the sealing mold. One side of the sealing slide rail is fixedly connected to one side of the sealing support seat. A movable slide table is fixedly connected to one side of each of the two sealing support seats. A second slider is slidably connected to the outer wall of the movable slide table. A suction tube is fixedly connected to one side of the second slider. The outer walls of the two suction tubes are respectively disposed at the bottom of the two sealing molds.

[0012] Preferably, one of the upper sealing support seats has side plates fixedly connected to both sides, a cylinder is installed on the top of the side plate, a slider is fixedly connected to the output end of the cylinder, a slide rail is slidably connected inside the slider, the top of the slide rail is fixedly connected to the bottom of the side plate, and a pneumatic gripper is installed on one side of the slider.

[0013] Preferably, a fixing frame is fixedly connected to the bottom of the support plate, a sleeve is fixedly connected to the bottom of the fixing frame, a slide rod is slidably connected to the top of the sleeve, the outer wall of the slide rod is slidably connected to the fixing frame, an mounting frame is fixedly connected to the top of the fixing frame, an auxiliary roller is rotatably connected to the inside of the mounting frame, the outer wall of the auxiliary roller contacts the outer wall of the packaging film roll, a connecting block is fixedly connected to the bottom of the slide rod, a spring is fixedly connected to the opposite side of the connecting block and the fixing frame, the inner wall of the spring is sleeved on the outer wall of the slide rod, a sliding plate is fixedly connected to the outer wall of the connecting block, a sliding groove is formed on the outer wall of the sleeve, the outer wall of the sliding plate is slidably connected to the sliding groove, an electrode plate is installed on the top of the sliding plate, an electrode sheet is installed on the bottom of the fixing frame directly above the electrode plate, and a warning light and an indicator light are sequentially installed on the bottom of the fixing frame.

[0014] Preferably, a second lifting slide is installed on one inner wall of the frame, a lifting plate is slidably connected to the outer wall of the second lifting slide, a second cylinder is installed on the top of the lifting plate, a first unloading claw is fixedly connected to the output end of the second cylinder, the outer wall of the first unloading claw is slidably through and disposed on one side of the frame, and a third cylinder is installed at the bottom of the other upper sealing support, a second unloading claw is fixedly connected to the output end of the third cylinder, the first unloading claw and the second unloading claw are arranged perpendicularly to each other, and the claw end of the second unloading claw is disposed within the claw interval of the first unloading claw.

[0015] Preferably, a fixing plate is fixedly connected to the inside of one side of the frame, a cylinder four is hinged to one side of the fixing plate, a lifting block is hinged to the output end of the cylinder four, a slide rail three is slidably connected inside the lifting block, one side of the slide rail three is fixedly connected to the inner wall of one side of the frame, a connecting plate is fixedly connected to one side of the lifting block, the outer wall of the connecting plate is slidably connected to the top of one side of the frame, and a funnel is fixedly connected to one end of the connecting plate.

[0016] Preferably, a connecting frame is fixedly connected to one side of the outer wall of the frame, and a feeding hopper is fixedly connected to one end of the connecting frame, the feeding hopper being inclined.

[0017] This invention provides a fully automatic tubular film packaging machine. It has the following beneficial effects: 1. This invention uses a servo motor to drive a worm gear to rotate, which in turn drives a worm wheel to rotate through meshing transmission. The worm wheel drives a rotating shaft to rotate between mounting bases, and the rotating shaft drives the adjusting arms at both ends to swing synchronously. The adjusting arms drive the adjusting rollers to swing around the axis of the rotating shaft, thereby adjusting the tension of the packaging film in real time along the film path. This ensures that the packaging film remains flat and does not deviate during the conveying process, and compensates for the tension fluctuations of the film material caused by the bag handover action, ensuring accurate alignment of the packaging film in subsequent sealing processes.

[0018] 2. This invention achieves a continuous automated operation of film pulling, bag delivery, bag support, and unloading by using a pneumatic gripper 1 to hold the film end upwards, then resetting and gripping again after interchanging with a pneumatic gripper 2. This is combined with a feeding claw 1 extending to support the bottom of the packaging bag before filling, and pushing the finished bag to the feeding hopper via the feeding claw 2 after sealing. The alternating gripping of the pneumatic gripper 1 and pneumatic gripper 2 allows the pneumatic gripper 1 to reset and grip the new film end in advance during the sealing operation, shortening the waiting time between each process and improving the overall packaging efficiency.

[0019] 3. In this invention, the auxiliary roller is always in contact with the outer wall of the packaging film roll. When the roll diameter decreases, the auxiliary roller drives the slide bar to slide up the sleeve under the action of the spring reset. The slide bar drives the electrode plate to move up synchronously to contact the electrode sheet. After the circuit is turned on, the control system lights up the warning light to remind the operator to replace the film roll in time. During normal operation, the electrode plate separates from the electrode sheet and the warning light goes out. The remaining status of the film can be monitored in real time without stopping the machine for manual inspection. This avoids the equipment running idle or delaying the machine due to the use of film and improves the reliability of continuous operation of the equipment. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural diagram of the packaging film roll of the present invention; Figure 3 This is a partial structural diagram of the lower sealing mechanism of the present invention; Figure 4 This is a schematic diagram of the internal structure of one of the lower sealing molds of the present invention; Figure 5 This is a partial structural diagram of the limiting arm of the present invention; Figure 6 This is a partial structural diagram of the upper sealing mechanism of the present invention; Figure 7 This is a partial structural diagram of the pneumatic gripper of the present invention; Figure 8 This is a partial structural diagram of the bag delivery mechanism of the present invention; Figure 9 This is a partial structural diagram of the support plate of the present invention; Figure 10 for Figure 9 Schematic diagram of the structure placed at point A in the middle; Figure 11 This is a schematic diagram of a partial structure of the frame of the present invention; Figure 12 This is a partial structural diagram of the first and second feeding claws of the present invention; Figure 13 This is a partial structural diagram of the funnel of the present invention.

[0021] Among them, 1. Frame; 2. Support plate; 201. Rotating shaft; 202. Packaging film roll; 203. Guide roller 1; 204. Mounting base; 205. Rotating shaft; 206. Worm gear; 207. Worm; 208. Servo motor; 209. Adjusting arm; 210. Adjusting roller; 3. Lower sealing support base; 301. Lower sealing cylinder; 302. Lower sealing mold; 303. Sliding block; 304. Lower sealing slide rail; 305. Rodless cylinder; 306. Moving base; 307. Cutting blade; 4. Lifting slide table; 401. Connecting rod; 402. Motor; 403. Slider; 404. Linear slide table; 405. Pneumatic gripper; 5. Two-way lead screw; 501. Moving plate; 502. Guide rod; 503. Limiting arm; 504. Guide roller II; 6. Upper sealing support base; 601. Upper sealing cylinder; 602. Upper sealing mold; 603. Upper sealing slide rail; 604. Slider II; 605. Moving slide table; 606. Suction tube; 7. Side plate; 701. Cylinder 1; 702. Slider 3; 703. Slide rail 2; 704. Pneumatic gripper 2; 8. Fixing frame; 801. Sleeve; 802. Slide rod; 803. Mounting frame; 804. Auxiliary roller; 805. Connecting block; 806. Spring; 807. Slide plate; 808. Slide groove; 809. Electrode plate; 810. Electrode sheet; 811. Warning light; 812. Indicator light; 9. Lifting slide two; 901. Lifting plate; 902. Cylinder two; 903. Unloading claw one; 904. Cylinder three; 905. Unloading claw two; 10. Fixed plate; 1001. Cylinder four; 1002. Lifting block; 1003. Slide rail three; 1004. Connecting plate; 1005. Funnel; 11. Connecting frame; 1101. Feed hopper. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 -Appendix Figure 11 This invention provides a fully automatic tubular film packaging machine, including a frame 1. A support plate 2 is symmetrically fixedly connected to one side of the frame 1. A rotating shaft 201, on which a packaging film roll 202 is mounted, is rotatably connected inside the support plate 2. Guide rollers 203 are provided inside both the frame 1 and the support plate 2. Mounting seats 204 are symmetrically fixedly connected to the inner wall of one side of the frame 1. A rotating shaft 205 is rotatably connected between the mounting seats 204. A worm gear 206 is fixedly connected to the outer wall of one end of the rotating shaft 205. A worm 207 is meshed with the tooth end of the worm gear 206. A servo motor 208 is fixedly connected to one end of the worm 207. One side of the servo motor 208 is mounted on one side of the mounting seat 204. An adjusting arm 209 is symmetrically fixedly connected to the outer wall of the rotating shaft 205. An adjusting roller 210 is rotatably connected to one end of the adjusting arm 209. The bottom of the other side of the frame 1 is equipped with a lower sealing mechanism, an upper sealing mechanism and a bag delivery mechanism. The lower sealing mechanism includes two lower sealing support seats 3 that are fixedly connected to the bottom of the frame 1.

[0024] Specifically, the free end of the packaging film roll 202 is led out from the rotating shaft 201, passes through the guide roller 203 on the support plate 2 in sequence, then passes through the guide roller 203 on one side of the frame 1, then passes over the top of the adjusting roller 210, and finally passes through the bottom of the guide roller 203 at the bottom of the frame 1 to the outer wall of the frame 1. The swing angle of the adjusting roller 210 is driven by the servo motor 208, which in turn drives the worm gear 207 to rotate. The worm gear 207 drives the worm wheel 206 to rotate through meshing transmission. The worm wheel 206 drives the rotating shaft 205 to rotate between the mounting bases 204. The rotating shaft 205 drives the adjusting arms 209 at both ends to swing synchronously. The adjusting arms 209 drive the adjusting roller 210 to swing around the axis of the rotating shaft 205, thereby adjusting the tension of the packaging film in the film path in real time, ensuring that the packaging film remains flat and does not deviate during the conveying process, and compensating for the film tension caused by the bag delivery action. The material tension fluctuation is controlled to ensure accurate alignment of the packaging film in subsequent sealing processes. The self-locking characteristic of the worm gear 206 and worm 207 transmission ensures that the adjusting roller 210 can be stably maintained at the current angle and height after adjustment, without loosening due to reverse tension. This ensures that the film material is always in a uniform tension state throughout the film feeding process, avoiding loosening and wrinkling of the film material or tearing and breaking due to excessive tension. This provides a stable film material base for subsequent fixed-length bag making. Through the cooperation of the sealing mechanism, the top sealing mechanism, and the bag delivery mechanism, the continuous automated operation of film pulling, bag delivery, bag support, and material feeding is achieved.

[0025] Please see the appendix Figure 3 -Appendix Figure 6 Appendix Figure 8 Appendix Figure 11 A lower sealing cylinder 301 is installed on one side of the lower sealing support 3. The output end of the lower sealing cylinder 301 is fixedly connected to the lower sealing mold 302. A sliding block 303 is fixedly connected to the bottom of the lower sealing mold 302. A lower sealing slide rail 304 is slidably connected to the bottom of the sliding block 303. The bottom of the lower sealing slide rail 304 is fixedly connected to the top of the lower sealing support 3. A rodless cylinder 305 is installed inside one of the lower sealing molds 302. A movable seat 306 is slidably connected to the output end of the rodless cylinder 305. A cutting blade 307 is installed on one side of the movable seat 306. The outer wall of the cutting blade 307 is slidably connected to the middle of the lower sealing mold 302. One of the lower sealing support seats 3 has a bidirectional lead screw 5 with a drive component rotatably connected between its two bottom sides. The drive component of the bidirectional lead screw 5 is installed on one side of the lower sealing support seat 3. Both ends of the bidirectional lead screw 5 are threadedly connected to a moving plate 501. Both ends of the moving plate 501 are slidably connected to a guide rod 502. Both ends of the guide rod 502 are fixedly connected to the inner walls of both sides of the lower sealing support seat 3. Limiting arms 503 are fixedly connected to one side of both moving plates 501. Guide rollers 504 are symmetrically fixedly connected to the bottom of one of the lower sealing support seats 3.

[0026] Specifically, before the frame 1 is run, the drive component of the bidirectional lead screw 5 drives the bidirectional lead screw 5 to rotate. The threads at both ends of the bidirectional lead screw 5 in opposite directions drive the two moving plates 501 to slide in opposite directions along the guide rod 502. The moving plates 501 drive the limiting arms 503 to move synchronously, thereby adjusting the distance between the two limiting arms 503 according to the actual width of the packaging film. This limits and guides the packaging film passing between the two limiting arms 503, preventing the packaging film from shifting during the sealing and cutting process. The second guide roller 504 provides support and guidance for the packaging film before it enters the lower sealing station, ensuring that the packaging film enters between the two lower sealing molds 302 at the correct angle and position. After the packaging film is output to the outer wall of the frame 1 via the guide roller 203 at the bottom of the frame 1, it passes between the two guide rollers 504 and then enters between the two limit arms 503, and continues to move upward to between the two lower sealing molds 302. When the packaging film is pulled upward by one bag length under the grip of the pneumatic gripper 405, the lower sealing mechanism is activated. The two lower sealing cylinders 301 extend simultaneously, pushing their respective lower sealing molds 302 to slide towards each other on both sides of the packaging film through the sliding block 303 along the lower sealing slide rail 304, so that the two lower sealing molds 302 close and adhere to the outer wall of the packaging film, and perform heat-press sealing of the lower end of the packaging film. After the sealing is completed, the rodless cylinder 305 installed inside one of the sealing molds 302 is activated, driving the moving seat 306 to slide along the axial direction of the rodless cylinder 305. The moving seat 306 drives the cutting blade 307 to slide laterally in the middle of the sealing mold 302, cutting and separating the sealed packaging bag from the packaging film roll 202, completing the cutting and sealing of one bag length. After cutting, the sealing cylinder 301 retracts, the sealing mold 302 opens, and one sealing cycle is completed. Since the cutting blade 307 is slidably assembled in the middle channel of the lower sealing mold 302, the effective heat-sealing working surface of the lower sealing mold 302 is located in the area above the cutting blade 307. The section of the lower sealing mold 302 below the cutting blade 307 is only a mechanical clamping area. No heating elements are installed, and no heat-sealing action is performed on the packaging film. When the packaging film is cut horizontally, the lower end of the remaining continuous cylindrical film above will be clamped and positioned by the lower clamping sections of the lower sealing molds 302 on both sides. It will not slide down due to its own weight and will always maintain a neat vertical hanging posture, waiting for the next round of pneumatic gripper 405 to descend to the corresponding position to complete the alignment and clamping.

[0027] Please see the appendix Figure 3 Appendix Figure 8The bag delivery mechanism includes two lifting slides 4 symmetrically arranged on one side of the frame 1. Both ends of the two lifting slides 4 are rotatably connected to connecting rods 401. A motor 402 is installed on one side of one of the lifting slides 4. One end of one of the connecting rods 401 is fixedly connected to the output end of the motor 402. Slider 403 is slidably connected to the outer wall of both lifting slides 4. A linear slide 404 is fixedly connected to one side of the slider 403. A pneumatic gripper 405 is slidably connected inside the linear slide 404.

[0028] Specifically, after sealing and cutting are completed, the bag delivery mechanism continues to work. The linear slide 404 drives the pneumatic gripper 405 to move horizontally. The linear slides 404 on both sides drive their respective pneumatic grippers 405 to move synchronously towards both ends of the packaging bag. After they are in place, the pneumatic grippers 405 hold the two sides of the packaging bag. Then the motor 402 starts and drives the transmission mechanism inside the lifting slides 4 on both sides to operate synchronously through the connecting rod 401. This ensures that the two sliders 403 slide synchronously upward along the lifting slides 4, avoiding unilateral deviation that would cause the bag to tilt. The sliders 403 on the two lifting slides 4 drive the linear slides 404 to rise and fall synchronously along the lifting slides 4, lifting the packaging bag to the length of one packaging bag. Then the sealing operation is performed to complete the bag delivery action. The rising distance is precisely controlled by the motor 402 to match the set bag length specifications. During the bag delivery process, the packaging film is continuously pulled out from the packaging film roll 202 by the pneumatic gripper 405 lifting it upwards, thus achieving unwinding. Since the pneumatic gripper 405 clamps both ends of the packaging bag at the same time, the stability during the conveying process is improved, effectively preventing the packaging bag from deviating during long-distance delivery.

[0029] Please see the appendix Figure 6 -Appendix Figure 8 Appendix Figure 11 The sealing mechanism includes two sealing support seats 6 fixedly connected to the top of the frame 1. A sealing cylinder 601 is installed on one side of each of the two sealing support seats 6. The output end of the sealing cylinder 601 is fixedly connected to the sealing mold 602. A sealing slide rail 603 is slidably connected to the bottom of the sealing mold 602. One side of the sealing slide rail 603 is fixedly connected to one side of the sealing support seat 6. A movable slide table 605 is fixedly connected to one side of each of the two sealing support seats 6. A second slider 604 is slidably connected to the outer wall of the movable slide table 605. A suction tube 606 is fixedly connected to one side of the second slider 604. The outer walls of the two suction tubes 606 are respectively set at the bottom of the two sealing molds 602. One of the upper sealing support seats 6 has side plates 7 fixedly connected to both sides. A cylinder 701 is installed on the top of the side plate 7. A slider 702 is fixedly connected to the output end of the cylinder 701. A slide rail 703 is slidably connected inside the slider 702. The top of the slide rail 703 is fixedly connected to the bottom of the side plate 7. A pneumatic gripper 704 is installed on one side of the slider 702.

[0030] Specifically, pneumatic gripper 405 lifts the packaging bag to the sealing mechanism and transfers it to pneumatic gripper 704. Pneumatic gripper 704 clamps both ends of the packaging bag. After the transfer is completed, pneumatic gripper 405 releases and resets, ready for the next bag transfer. Cylinder 1 701 drives slider 3 702 to slide along slide rail 2 703. Slider 3 702 drives pneumatic gripper 2 704 to extend. After pneumatic gripper 2 704 takes the packaging bag, the moving slide 605 drives slider 2 604 and straw 606 to extend towards each other. Straw 606 sucks up the two outer walls of the upper opening of the packaging bag. Then slider 2 604 drives straw 606 to retract in the opposite direction, pulling open the two sides of the upper opening of the packaging bag and opening the bag opening. Subsequently, the straw 606 stops inhaling and releases the top of the packaging bag. The pneumatic gripper 704 then retracts the packaging bag, flattening the top of the bag. Then, the two sealing cylinders 601 extend simultaneously, pushing their respective sealing molds 602 to slide and close together along the sealing slide rail 603, performing heat sealing on the top of the packaging bag. After sealing is completed, the sealing mold 602 opens, the pneumatic gripper 704 releases the packaging bag, and the packaging bag is completely sealed.

[0031] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 9 Appendix Figure 10 A fixing frame 8 is fixedly connected to the bottom of the support plate 2. A sleeve 801 is fixedly connected to the bottom of the fixing frame 8. A sliding rod 802 is slidably connected to the top of the sleeve 801. The outer wall of the sliding rod 802 is slidably connected inside the fixing frame 8. A mounting frame 803 is fixedly connected to the top of the fixing frame 8. An auxiliary roller 804 is rotatably connected inside the mounting frame 803. The outer wall of the auxiliary roller 804 contacts the outer wall of the packaging film roll 202. A connecting block 805 is fixedly connected to the bottom of the sliding rod 802. The connecting block 805 is connected to the fixing... A spring 806 is fixedly connected to the opposite side of the frame 8. The inner wall of the spring 806 is sleeved on the outer wall of the slide rod 802. A slide plate 807 is fixedly connected to the outer wall of the connecting block 805. A groove 808 is opened on the outer wall of the sleeve 801. The outer wall of the slide plate 807 is slidably connected in the groove 808. An electrode plate 809 is installed on the top of the slide plate 807. An electrode sheet 810 is installed on the bottom of the fixed frame 8 directly above the electrode plate 809. A warning light 811 and an indicator light 812 are installed in sequence on the bottom of the fixed frame 8.

[0032] Specifically, during the operation of the packaging machine, the outer wall of the auxiliary roller 804 remains in contact with the outer wall of the packaging film roll 202. As the diameter of the packaging film roll 202 gradually decreases, the auxiliary roller 804 moves upward under the reaction force of the spring 806. The mounting bracket 803 drives the slide bar 802 to slide upward along the sleeve 801. The slide bar 802 drives the connecting block 805 to move upward, and the spring 806 returns to its original position. At the same time, the connecting block 805 drives the sliding plate 807 to slide upward along the groove 808 on the outer wall of the sleeve 801. The sliding plate 807 drives the electrode plate 809 to move upward synchronously. When the diameter of the packaging film roll 202 decreases to... When the set value is reached, the electrode plate 809 rises with the slide plate 807 until it contacts the electrode sheet 810, and the circuit is connected. The indicator light 812 transmits the signal of circuit connection to the control system of the packaging machine through the signal line. The control system controls the warning light 811 to light up, reminding the operator that the packaging film roll 202 is about to run out and needs to be replaced. When the packaging film roll 202 is working normally, the spring 806 is in a stretched state, the electrode plate 809 is not in contact with the electrode sheet 810, and the warning light 811 is in an off state, indicating that the equipment is in a normal film supply state. This realizes real-time detection and alarm prompt of the remaining amount of packaging film roll 202.

[0033] Please see the appendix Figure 1 Appendix Figure 8 Appendix Figure 11 Appendix Figure 12 A second lifting slide 9 is installed on one inner wall of the frame 1. A lifting plate 901 is slidably connected to the outer wall of the second lifting slide 9. A second cylinder 902 is installed on the top of the lifting plate 901. A first feeding claw 903 is fixedly connected to the output end of the second cylinder 902. The outer wall of the first feeding claw 903 is slidably connected through one side of the frame 1. A third cylinder 904 is installed at the bottom of another upper sealing support 6. A second feeding claw 905 is fixedly connected to the output end of the third cylinder 904. The first feeding claw 903 and the second feeding claw 905 are vertically arranged. The claw end of the second feeding claw 905 is located within the claw interval of the first feeding claw 903. A connecting frame 11 is fixedly connected to one side of the outer wall of the frame 1, and a feeding hopper 1101 is fixedly connected to one end of the connecting frame 11. The feeding hopper 1101 is inclined.

[0034] Specifically, after the bag is handed over, the pneumatic gripper 405 resets, and the lifting slide 9 drives the lifting plate 901 to move towards the bottom of the packaging bag, so that the top of the unloading gripper 903 contacts the bottom of the packaging bag. Then, the output end of the cylinder 902 shortens, causing the unloading gripper 903 to extend along one side of the frame 1, completely supporting the bottom of the packaging bag and preventing the packaging bag from falling off the pneumatic gripper 704 due to the impact of the material. After the sealing operation is completed, the pneumatic gripper 704 releases the sealed packaging bag, and the packaging... The bag will fall above the feeding claw 903. Then, the lifting slide 9 drives the lifting plate 901 to move downward to the position height of the feeding hopper 1101 entrance. The cylinder 904 is controlled to extend, so that the output end of the cylinder 904 drives the feeding claw 905 to move along the claw interval of the feeding claw 903, pushing the packaging bag on the feeding claw 903 onto the feeding hopper 1101. The finished packaging bag slides out of the frame 1 along the inclined feeding hopper 1101, completing the output of the finished product in a single packaging cycle.

[0035] Please see the appendix Figure 1 Appendix Figure 11 -Appendix Figure 13 A fixed plate 10 is fixedly connected to one side of the frame 1. A cylinder 1001 is hinged to one side of the fixed plate 10. A lifting block 1002 is hinged to the output end of the cylinder 1001. A slide rail 1003 is slidably connected inside the lifting block 1002. One side of the slide rail 1003 is fixedly connected to the inner wall of one side of the frame 1. A connecting plate 1004 is fixedly connected to one side of the lifting block 1002. The outer wall of the connecting plate 1004 is slidably connected to the top of one side of the frame 1. A funnel 1005 is fixedly connected to one end of the connecting plate 1004.

[0036] Specifically, after the top of the packaging bag is opened, the funnel 1005 descends under the drive of cylinder 1001. That is, the shortening action of cylinder 1001 pulls the lifting block 1002 to slide down along slide rail 1003. The lifting block 1002 drives the connecting plate 1004 to descend, and the connecting plate 1004 drives the funnel 1005 to descend along the top of the frame 1, so that the outlet of the funnel 1005 extends into the packaging bag. After the material is filled into the bag by the funnel 1005, the funnel 1005 rises and resets under the drive of cylinder 1001, and exits the packaging bag.

[0037] Work process: During use, the free end of the packaging film roll 202 is led out from the rotating shaft 201, passes through the guide roller 203 on the support plate 2 and the guide roller 203 on one side of the frame 1 in sequence, passes over the top of the adjusting roller 210, and finally passes through the bottom of the guide roller 203 at the bottom of the frame 1 to the outer wall of the frame 1. The servo motor 208 drives the adjusting roller 210 to swing through the worm 207, worm wheel 206, rotating shaft 205 and adjusting arm 209 to adjust the tension of the film. Before operation, the bidirectional lead screw 5 drives the moving plate 501 to slide along the guide rod 502, which in turn drives the limiting arm 503 to adjust the spacing according to the film width, thereby limiting the packaging film passing between the two limiting arms 503. After being guided by the second guide roller 504, the packaging film enters between the two lower sealing molds 302. The linear slide 404 drives the pneumatic gripper 405 to approach and clamp the two ends of the packaging bag. The motor 402 synchronously drives the slider 403 to rise along the lifting slide 4 via the connecting rod 401, raising the packaging bag to the upper sealing position. After the pneumatic gripper 405 clamps the film end and pulls it upward by one bag length, the lower sealing cylinder 301 pushes the lower sealing mold 302 to close along the lower sealing slide rail 304, performing heat sealing on the lower end of the packaging film. The rodless cylinder 305 drives the moving seat 306 to move the cutting blade 307 laterally in the middle of the lower sealing mold 302, cutting and separating the sealed packaging bag. The section of the lower sealing mold 302 below the cutting blade 307 is a mechanical clamping area, where heat sealing is not performed. After cutting, the lower film end is clamped and positioned, waiting for the pneumatic gripper 405 to clamp it again. After the pneumatic gripper 405 transfers the packaging bag to the pneumatic gripper 704, it releases and resets. The cylinder 701 drives the slider 702 to move the pneumatic gripper 704 to clamp the bag. The moving slide 605 drives the slider 604 to move the suction tube 606 to extend towards each other, adsorb the two sides of the bag opening and then retract backward to open the bag opening. After the pneumatic gripper 405 resets, the lifting slide 9 drives the lifting plate 901 to move towards the bottom of the packaging bag. At the same time, the output end of the cylinder 902 shortens, so that the unloading gripper 903 completely supports the bottom of the packaging bag. After the material is bagged, the suction tube 606 stops sucking air, the pneumatic gripper 704 retracts to flatten the bag opening, and the upper sealing cylinder 601 pushes the upper sealing mold 602 to close along the upper sealing slide rail 603 to heat-seal the bag opening. After the upper sealing is completed, the upper sealing mold 602 opens, the pneumatic gripper 704 releases the packaging bag, and the packaging bag falls above the unloading gripper 903. The lifting slide 2 9 drives the lifting plate 901 to move downward to the inlet position of the feeding hopper 1101. The cylinder 3 904 extends and drives the feeding claw 2 905 to move along the claw interval of the feeding claw 1 903, pushing the packaging bag onto the feeding hopper 1101. The finished product slides out of the frame 1 along the inclined feeding hopper 1101. The auxiliary roller 804 contacts the outer wall of the packaging film roll 202. After the diameter of the film decreases, the auxiliary roller 804 moves upward, driving the slide bar 802 to slide upward along the sleeve 801. The slide plate 807 drives the electrode plate 809 to move upward. When the electrode plate 809 contacts the electrode sheet 810, the circuit is connected, and the warning light 811 lights up to indicate that the film is almost used up. During normal operation, the electrode plate 809 does not contact the electrode sheet 810, and the warning light 811 goes out.

[0038] Although embodiments of the 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 these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully automatic tubular film packaging machine, comprising a frame (1), characterized in that: A support plate (2) is symmetrically fixedly connected to one side of the frame (1). A rotating shaft (201) equipped with packaging film roll (202) is rotatably connected inside the support plate (2). Guide rollers (203) are provided inside both the frame (1) and the support plate (2). A mounting base (204) is symmetrically fixedly connected to the inner wall of one side of the frame (1). A rotating shaft (205) is rotatably connected between the mounting bases (204). A worm gear (206) is fixedly connected to the outer wall of one end of the rotating shaft (205). A worm (207) is meshed with the tooth end of the worm gear (206). A servo motor (208) is fixedly connected to one end of the worm (207). One side of the servo motor (208) is installed on one side of the mounting base (204). An adjusting arm (209) is symmetrically fixedly connected to the outer wall of the rotating shaft (205). An adjusting roller (210) is rotatably connected to one end of the adjusting arm (209). The bottom of the other side of the frame (1) is equipped with a lower sealing mechanism, an upper sealing mechanism and a bag delivery mechanism. The lower sealing mechanism includes two lower sealing support seats (3) that are fixedly connected to the bottom of the frame (1).

2. The fully automatic tubular film packaging machine according to claim 1, characterized in that: A lower sealing cylinder (301) is installed on one side of each of the lower sealing support bases (3). The output end of the lower sealing cylinder (301) is fixedly connected to a lower sealing mold (302). A sliding block (303) is fixedly connected to the bottom of the lower sealing mold (302). A lower sealing slide rail (304) is slidably connected to the bottom of the sliding block (303). The bottom of the lower sealing slide rail (304) is fixedly connected to the top of the lower sealing support base (3). A rodless cylinder (305) is installed inside one of the lower sealing molds (302). A moving seat (306) is slidably connected to the output end of the rodless cylinder (305). A cutting blade (307) is installed on one side of the moving seat (306). The outer wall of the cutting blade (307) is slidably connected to the middle of the lower sealing mold (302).

3. The fully automatic tubular film packaging machine according to claim 1, characterized in that: The bag delivery mechanism includes two lifting slides (4) symmetrically arranged on one side of the frame (1). Both ends of the two lifting slides (4) are rotatably connected to connecting rods (401). One side of one of the lifting slides (4) is equipped with a motor (402). One end of one of the connecting rods (401) is fixedly connected to the output end of the motor (402). The outer walls of the two lifting slides (4) are slidably connected to sliders (403). One side of the slider (403) is fixedly connected to a linear slide (404). The interior of the linear slide (404) is slidably connected to a pneumatic gripper (405).

4. The fully automatic tubular film packaging machine according to claim 2, characterized in that: One of the lower sealing support seats (3) has a bidirectional screw (5) with a driving component rotatably connected between its two bottom sides. The driving component of the bidirectional screw (5) is installed on one side of the lower sealing support seat (3). Both ends of the bidirectional screw (5) are threadedly connected to a moving plate (501). Both ends of the moving plate (501) are slidably connected to a guide rod (502). Both ends of the guide rod (502) are fixedly connected to the inner walls of both sides of the lower sealing support seat (3). One side of each of the two moving plates (501) is fixedly connected to a limit arm (503). One of the lower sealing support seats (3) has a guide roller (504) symmetrically fixedly connected to its bottom.

5. The fully automatic tubular film packaging machine according to claim 1, characterized in that: The sealing mechanism includes two sealing support seats (6) fixedly connected to the top of the frame (1). A sealing cylinder (601) is installed on one side of each of the two sealing support seats (6). The output end of the sealing cylinder (601) is fixedly connected to the sealing mold (602). A sealing slide rail (603) is slidably connected to the bottom of the sealing mold (602). One side of the sealing slide rail (603) is fixedly connected to one side of the sealing support seat (6). A movable slide table (605) is fixedly connected to one side of each of the two sealing support seats (6). A slider two (604) is slidably connected to the outer wall of the movable slide table (605). A suction tube (606) is fixedly connected to one side of the slider two (604). The outer walls of the two suction tubes (606) are respectively set at the bottom of the two sealing molds (602).

6. The fully automatic tubular film packaging machine according to claim 5, characterized in that: One of the upper sealing support seats (6) has side plates (7) fixedly connected to both sides. A cylinder (701) is installed on the top of the side plate (7). A slider (702) is fixedly connected to the output end of the cylinder (701). A slide rail (703) is slidably connected inside the slider (702). The top of the slide rail (703) is fixedly connected to the bottom of the side plate (7). A pneumatic gripper (704) is installed on one side of the slider (702).

7. The fully automatic tubular film packaging machine according to claim 1, characterized in that: A fixing frame (8) is fixedly connected to the bottom of the support plate (2). A sleeve (801) is fixedly connected to the bottom of the fixing frame (8). A sliding rod (802) is slidably connected to the top of the sleeve (801). The outer wall of the sliding rod (802) is slidably connected inside the fixing frame (8). A mounting frame (803) is fixedly connected to the top of the fixing frame (8). An auxiliary roller (804) is rotatably connected inside the mounting frame (803). The outer wall of the auxiliary roller (804) contacts the outer wall of the packaging film roll (202). A connecting block (805) is fixedly connected to the bottom of the sliding rod (802). The connecting block (805) is fixedly connected to the fixing frame (802). A spring (806) is fixedly connected to the opposite side of the frame (8). The inner wall of the spring (806) is sleeved on the outer wall of the slide rod (802). A slide plate (807) is fixedly connected to the outer wall of the connecting block (805). A slide groove (808) is opened on the outer wall of the sleeve (801). The outer wall of the slide plate (807) is slidably connected in the slide groove (808). An electrode plate (809) is installed on the top of the slide plate (807). An electrode sheet (810) is installed on the bottom of the fixed frame (8) directly above the electrode plate (809). A warning light (811) and an indicator light (812) are installed in sequence on the bottom of the fixed frame (8).

8. The fully automatic tubular film packaging machine according to claim 5, characterized in that: A second lifting slide (9) is installed on one inner wall of the frame (1). A lifting plate (901) is slidably connected to the outer wall of the second lifting slide (9). A second cylinder (902) is installed on the top of the lifting plate (901). A first unloading claw (903) is fixedly connected to the output end of the second cylinder (902). The outer wall of the first unloading claw (903) is slidably connected through one side of the frame (1). A third cylinder (904) is installed at the bottom of another upper sealing support (6). A second unloading claw (905) is fixedly connected to the output end of the third cylinder (904). The first unloading claw (903) and the second unloading claw (905) are vertically arranged between them. The claw end of the second unloading claw (905) is located within the claw interval of the first unloading claw (903).

9. The fully automatic tubular film packaging machine according to claim 1, characterized in that: A fixed plate (10) is fixedly connected to one side of the frame (1). A cylinder four (1001) is hinged to one side of the fixed plate (10). A lifting block (1002) is hinged to the output end of the cylinder four (1001). A slide rail three (1003) is slidably connected inside the lifting block (1002). One side of the slide rail three (1003) is fixedly connected to the inner wall of one side of the frame (1). A connecting plate (1004) is fixedly connected to one side of the lifting block (1002). The outer wall of the connecting plate (1004) is slidably connected to the top of one side of the frame (1). A funnel (1005) is fixedly connected to one end of the connecting plate (1004).

10. The fully automatic tubular film packaging machine according to claim 1, characterized in that: A connecting frame (11) is fixedly connected to one side of the outer wall of the frame (1), and a feeding hopper (1101) is fixedly connected to one end of the connecting frame (11). The feeding hopper (1101) is inclined.

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