A new type of self-sealing bag full-automatic bagging machine

Abstract

The utility model relates to a novel self -sealing bag full -automatic bagging machine, including frame and be equipped with on its material receiving assembly, feeding bag assembly, bagging assembly and bagging assembly, material receiving assembly is equipped with four material receiving frame and upper and lower material receiving mechanism, realizes the continuous reception and batch unloading of small self -sealing bag through the upper and lower insertion strip alternate action, and feeding bag assembly is equipped with two material pushing mechanism, can be respectively connected different material receiving frame, and will material after sending to left and right two sides bagging assembly, and bagging assembly opens the big self -sealing bag automatically, and cooperation finger air cylinder clamping ensures that bagging is reliable, and bagging assembly completes compression, cutting and finished product output. The whole machine adopts double work position parallel operation, and the front way feeding does not need to stop, significantly promotes the bagging efficiency, is applicable to the high -speed automation packaging of small size self -sealing bag.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a novel fully automatic self-sealing bag filling machine. Background Technology

[0002] Self-sealing bags (also known as zipper bags or resealable bags) are a common packaging material widely used in food, daily chemicals, electronics, pharmaceuticals, and other fields due to their advantages such as good sealing, ease of use, and reusability. During the production of self-sealing bags, especially small-sized ones, they are often packaged in bulk into a larger self-sealing bag for easier subsequent transportation, warehousing, and sales.

[0003] Currently, the bagging process is mostly done manually. Operators stack small self-sealing bags from the production line in fixed quantities, then manually fill them into larger self-sealing bags and seal them. This method is not only labor-intensive and inefficient, but also prone to problems such as uneven packaging, making it difficult to meet the needs of modern large-scale production.

[0004] To address the aforementioned issues, the industry has gradually introduced automated self-sealing bag filling equipment. Existing self-sealing bag filling machines typically include a conveyor mechanism, a receiving rack, a counting device, and a bagging execution mechanism. Their working principle is roughly as follows: small self-sealing bags continuously output from the previous production line are conveyed to the receiving rack for stacking. When the stack reaches a preset quantity (or thickness), the control system pauses the descent of the self-sealing bags, and the bagging mechanism activates, pushing or clamping the entire batch of self-sealing bags on the receiving rack into a larger self-sealing bag with an open opening, completing one bagging cycle.

[0005] However, existing self-sealing bag filling machines still have significant drawbacks in practical applications: Because the bagging process (including bag picking, opening, filling, and sealing) is time-consuming, the upstream conveying and unloading of self-sealing bags must be paused during this period to prevent material accumulation, misalignment, or jamming. This intermittent "stop-fill-start" operation mode severely restricts overall packaging efficiency and becomes a bottleneck hindering the acceleration of automated self-sealing bag production lines. Furthermore, frequent start-stop cycles also adversely affect equipment stability and lifespan.

[0006] Therefore, there is an urgent need to provide a fully automatic self-sealing bag filling machine with a reasonable structure, continuous operation, and higher efficiency to overcome the problem of low overall efficiency caused by the need to pause material supply during the bag filling process in the existing technology, and to achieve truly efficient, continuous, and automated packaging operations. Utility Model Content

[0007] This utility model proposes a novel fully automatic self-sealing bag filling machine, which can overcome the problem of low overall efficiency caused by the need to pause material supply during the bag filling process in the existing technology, and realize truly efficient, continuous and automated packaging operations.

[0008] The technical solution of this utility model is implemented as follows: A novel fully automatic self-sealing bag filling machine includes a frame, on which are mounted a receiving assembly, a feeding bag assembly located below the receiving assembly, a bag supporting assembly located behind the feeding bag assembly, and a bag closing and discharging assembly located on one side of the bag supporting assembly. The bag supporting assembly and the bag closing and discharging assembly are each located on the left and right sides of the frame. The feeding bag assembly includes two material pushing mechanisms arranged left and right, a feeding lateral drive mechanism for controlling the left and right movement of the two material pushing mechanisms, and a feeding front mechanism for controlling the back and forth movement of the two material pushing mechanisms. The rear drive mechanism includes a receiving assembly comprising a receiving frame fixed on the frame, the receiving frame having four vertically penetrating receiving frames, an upper receiving mechanism and a lower receiving mechanism respectively provided on the front and rear sides of the receiving frames, the lower receiving mechanism being located below the upper receiving mechanism, the upper receiving mechanism including a plurality of upper receiving strips for corresponding insertion into the receiving frames from front to back, and an upper strip driving mechanism for driving the upper receiving strips to move back and forth, the lower receiving mechanism including a plurality of lower receiving strips corresponding insertion to the lower side of the receiving frames from back to front, and a lower strip driving mechanism for driving the lower receiving strips to move back and forth.

[0009] By adopting the above technical solution, this application achieves continuous and uninterrupted material supply for small self-sealing bags in the upstream production line through the setting of four receiving frames and the alternating operation of the upper and lower receiving mechanisms. This avoids the efficiency bottleneck caused by the need to pause material supply during the bagging process in traditional bagging machines. Simultaneously, the use of a dual material pushing mechanism and symmetrically arranged bag-supporting and bag-closing discharge assemblies allows two bagging stations to operate in parallel, significantly improving the overall bagging efficiency. Furthermore, the coordinated action of the upper and lower inserts enables seamless switching between material receiving and falling, resulting in a compact structure and clear logic that effectively ensures the stability and high-speed operation of the automated process.

[0010] The present invention is further configured such that: the lower receiving mechanism includes a lifting seat, a lifting motor mounting plate, a lifting motor, and a ball screw; the lifting seat is slidably connected to the receiving frame; the lifting motor mounting plate is fixed to the receiving frame; the lifting motor is fixed to the lifting motor mounting plate; the ball screw is vertically rotatably connected to the lifting motor mounting plate; the lifting motor is used to drive the ball screw to rotate; a nut seat threaded onto the ball screw is connected to the lifting seat; the lower insert driving mechanism includes four lower insert driving cylinders fixed to the lifting seat; the four lower insert driving cylinders are respectively connected to the receiving lower inserts that enter the lower side of different receiving frames.

[0011] By adopting the above technical solution, the lifting motor controls the rotation of the ball screw, which drives the lifting seat to move up and down. This allows the receiving strip to move up and down as needed. When the receiving strip receives small self-sealing bags from the previous production line, it can move upward. When it is necessary to drop the small self-sealing bags on the receiving strip into the material pushing mechanism, it can move downward. This helps the small self-sealing bags to be more neat and the operation to be more stable and error-free.

[0012] The present invention is further configured such that: the upper insert driving mechanism includes an upper insert driving cylinder fixed on the receiving frame, the receiving upper insert is connected to the upper insert driving cylinder, and the receiving frame is provided with an insertion port for the receiving upper insert to be inserted into the receiving frame.

[0013] By adopting the above technical solution, the upper insert drive cylinder drives the upper insert to move in and out of the receiving frame through the insertion port on the receiving rack, resulting in rapid response and accurate positioning. When the lower insert is full, the upper insert moves backward into the receiving frame to receive subsequent material, achieving time-separated isolation between upper and lower layers of material. When the lower insert retracts to unload, the upper layer of material is temporarily stored on the upper insert. After the lower insert resets, the upper insert moves forward, causing the upper layer of material to fall onto the lower insert, completing the cycle. This mechanism is the core of achieving continuous feeding and effectively avoids production interruptions.

[0014] The present invention is further configured such that: the receiving frame is provided with a tapping mechanism for vibrating the receiving frame; the tapping mechanism includes a tapping motor base, a tapping motor, a tapping pulley, a connecting rod, and a tapping mounting plate; the tapping motor base is connected to the receiving frame; the tapping motor is fixed to the tapping motor base; the tapping pulley is rotatably connected to the tapping motor base; the tapping motor drives the tapping pulley to rotate; one end of the connecting rod is eccentrically rotatably connected to the tapping pulley; the other end of the connecting rod is rotatably connected to the tapping mounting plate; the receiving frame has a hopper tapping plate on its rear side; the hopper tapping plate is fixedly connected to the tapping mounting plate; the receiving frame also includes four hopper baffles fixed to the hopper tapping plate, a hopper fixing plate fixed to the front side of the receiving frame and extending toward the hopper tapping plate, and a bag-separating plate correspondingly located below the hopper baffles.

[0015] By adopting the above technical solution, periodic vibration is applied to the receiving frame through a tapping mechanism (including a tapping motor, eccentric connecting rod, and hopper tapping plate), which effectively prevents small self-sealing bags from getting stuck, bridging, or tilting during their fall into the receiving frame due to static electricity, friction, or uneven stacking. The hopper baffle, fixing plate, and bag separating plate together form a regular receiving cavity, which, together with the vibration tapping, ensures that each batch of small self-sealing bags is stacked neatly and at a consistent height, laying the foundation for accurate counting and stable pushing, and significantly improving bagging quality and equipment operational stability.

[0016] The present invention is further configured such that: the tapping motor base is slidably connected to the receiving frame, an adjusting rack is fixedly connected to the receiving frame, a traveling rod is rotatably connected to the tapping motor base, an adjusting gear meshing with the adjusting rack is keyed to the traveling rod, and a screw locking thread hole is provided on the tapping motor base at the position where it rotatably engages with the traveling rod.

[0017] By adopting the above technical solution, the tapping motor base achieves adjustable front and rear positions through a slide rail slider and an adjusting gear-rack mechanism. This allows for flexible adjustment of the tapping position of the hopper tapping plate according to the length or stacking characteristics of small self-sealing bags of different specifications. After adjustment, it is fixed by a locking screw, making operation simple and positioning reliable. This design enhances the versatility of the equipment, enabling it to adapt to products of various sizes and allowing for quick switching of production models without changing hardware, thus improving the flexibility and production efficiency of the equipment.

[0018] The present invention is further configured such that: a tooth-inserting drive cylinder is fixedly connected to the hopper clapper, a tooth-inserting plate located on the upper side of the hopper clapper is fixedly connected to the tooth-inserting drive cylinder, and a plurality of teeth extending downward into the receiving frame and passing through the lower side of the receiving frame are fixedly connected to the tooth-inserting plate, the teeth being close to the hopper clapper.

[0019] By adopting the above technical solution, the toothed plate and its downwardly extending teeth play a limiting and isolating role when the lower insert retracts, preventing the small self-sealing bag from being carried out of the receiving area along with the lower insert, and ensuring that the material falls accurately into the material pushing mechanism below. At the same time, the teeth are controlled by a tooth-driven cylinder to move up and down. When the material pushing mechanism moves backward, the teeth can be raised to avoid mechanical interference.

[0020] The present invention is further configured such that: the material pushing mechanism includes a hopper bottom plate, a hopper side plate, a material pushing plate, a bag pressing plate, a pushing cylinder, and a bag pressing cylinder; two hopper side plates are provided and are respectively fixed on the rear two sides of the hopper bottom plate; the material pushing plate is L-shaped and movably disposed between the two hopper side plates; the pushing cylinder is fixed on the hopper bottom plate and fixedly connected to the material pushing plate; the bag pressing plate is movably disposed on the material pushing plate; the bag pressing plate has an integrally formed bag pressing arm extending upward and forward; the cylinder body of the bag pressing cylinder is hinged to the hopper bottom plate; the piston of the bag pressing cylinder is hinged to a rotating rod; the other end of the rotating rod is hinged to the hopper bottom plate; the piston of the bag pressing cylinder is also hinged to a bag pressing connecting rod; the bag pressing connecting rod is hinged to the bag pressing arm; the rear sides of the hopper bottom plate and the material pushing plate are both inclined upward.

[0021] By adopting the above technical solution, in the material pushing mechanism, the small self-sealing bag falls from the receiving strip onto the L-shaped material pushing plate. At this time, the bag pressing plate is in the raised state; after the material is dropped, the bag pressing cylinder actuates to press the bag pressing plate down to flatten and stack the material. Subsequently, the entire material pushing mechanism moves backward under the drive of the feeding front and rear drive mechanism, approaching the bag supporting assembly; after reaching the designated position, the pushing cylinder drives the material pushing plate to push backward (i.e., towards the bag supporting assembly), sending the small self-sealing bag into the already opened large self-sealing bag. The upward tilting design of the bottom plate of the hopper and the rear side of the pushing plate helps to keep the small self-sealing bag neat and prevent it from falling out of the pushing plate, keeping the small self-sealing bag stable during the pushing process. This structure realizes a complete action chain of "receiving → flattening → rearward positioning → forward pushing into the bag", with rigorous logic and high efficiency.

[0022] The present invention is further configured as follows: a feeding guide rail is fixedly connected to the frame and arranged in a front-to-back manner; a hopper mounting base is slidably connected to the feeding guide rail; the hopper bottom plate is slidably arranged on the hopper mounting base; the feeding transverse drive mechanism includes a feeding transverse drive motor, a gear, and a rack; two racks are provided and are respectively fixed on the hopper bottom plates of two material pushing mechanisms; the feeding transverse drive motor is fixed on the hopper mounting base and connected to the gear; the two racks are respectively meshed on both sides of the gear; the feeding front-to-back drive mechanism includes a feeding front-to-back drive motor and a feeding screw; the feeding screw is rotatably connected to the frame; the feeding front-to-back drive motor is fixed on the frame and is used to drive the feeding screw to rotate; and the hopper mounting base is provided with a feeding nut seat threadedly connected to the feeding screw.

[0023] By adopting the above technical solution, and through the combination of feeding guide rails, hopper mounting bases, a lateral drive motor-gear-double rack and pinion, and a front and rear drive motor-screw-nut seat, high-precision linkage control of the material pushing mechanism in both lateral and longitudinal degrees of freedom is achieved. The lateral drive allows the two pushing mechanisms to align with any two receiving frames, enabling flexible material handling; the front and rear drives precisely control the pushing stroke, ensuring that small self-sealing bags are accurately fed into the opened large bag by the pushing cylinder. This transmission system has a stable structure and high repeatability, providing a reliable motion foundation for high-speed continuous bagging.

[0024] The present invention is further configured such that: the bag support assembly includes an upper bag support plate and a lower bag support plate; the frame is also provided with an upper bag support control cylinder for controlling the upper bag support plate to move up and down and a lower bag support control cylinder for controlling the lower bag support plate to move up and down; a bag pressing wheel is provided on the upper side of the upper bag support plate; a bag placing plate is fixed on the lower side of the lower bag support plate; a clamping opening is provided on the bag placing plate; a finger cylinder is fixedly provided on the frame behind the clamping opening; a bag gripper located in the clamping opening is connected to the finger cylinder; material trays are provided on both the left and right sides of the frame corresponding to the two bag support assemblies; and a transmission roller group is provided between the material tray and the bag support assembly.

[0025] By adopting the above technical solution, large self-sealing bags are fed into the bag-supporting assembly from a material tray via a transmission roller assembly. The upper and lower bag-supporting plates open under the drive of a cylinder, opening the bag opening and clamping it between the bag-pressing roller and the bag-placement plate. After the material pushing mechanism moves backward and pushes the small self-sealing bag into the bag, the finger cylinder drives the bag-body gripper to hold the small self-sealing bag inside, preventing it from being carried out by the retracting push plate. Subsequently, the push plate moves forward to reset, leaving the small self-sealing bag inside the large bag. This design ensures complete bagging without omissions, achieving fully automatic and highly reliable filling.

[0026] The present invention is further configured such that: the bag closing and discharging assembly includes a clamping mechanism located on one side of the upper bag support plate and the lower bag support plate, a hot-scalpel mechanism located on one side of the clamping mechanism, and a discharging mechanism located on one side of the hot-scalpel mechanism.

[0027] By adopting the above technical solution, the bag-closing and discharging assembly integrates a clamping mechanism, a hot-blade mechanism, and a discharging mechanism, forming a complete sealing-cutting-output integrated process. The clamping roller assembly first presses and seals the zipper structure of the large self-sealing bag, then the hot-blade mechanism cuts and separates it from the subsequent bag body, and finally the discharging finger cylinder precisely clamps and delivers the finished bag. The entire process is continuous and efficient. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the structure observed from another angle; Figure 3 This is a schematic diagram of the structure of the present invention after removing part of the frame and a material pushing mechanism; Figure 4 For the present utility model in Figure 3 A structural diagram after removing all racks from the original design; Figure 5 This is a schematic diagram of the material receiving assembly in this utility model; Figure 6 for Figure 5 A schematic diagram of the structure observed from another angle; Figure 7 This is a schematic diagram of the material receiving assembly after removing the upper material receiving strip, the lower material receiving strip, the tapping motor base, and other structures. Figure 8 for Figure 7 A schematic diagram of the structure observed from another angle; Figure 9 for Figure 4 A schematic diagram of the structure after removing the receiving assembly; Figure 10 This is a schematic diagram of the material feeding and bagging assembly in this utility model; Figure 11 This is a schematic diagram of the material pushing mechanism in this utility model; Figure 12 for Figure 11 A schematic diagram of the structure observed from another angle; Figure 13 This is a schematic diagram of the structure of this utility model when the frame, receiving assembly, and bag feeding assembly are removed and observed from the rear. Figure 14 This is a schematic diagram of the structure of the bag support assembly and the bag closing and discharging assembly on one side of this utility model. Figure 15 for Figure 14 A schematic diagram of the structure observed from another angle.

[0030] In the diagram: 1. Frame; 2. Receiving rack; 3. Receiving frame; 4. Insertion port; 5. Upper receiving strip; 6. Upper receiving strip drive cylinder; 7. Lower receiving strip; 8. Lifting seat; 9. Lifting motor mounting plate; 10. Lifting motor; 11. Ball screw; 12. Nut seat; 13. Lower receiving strip drive cylinder; 14. Beating motor seat; 15. Beating motor; 16. Beating pulley; 17. Connecting rod; 18. 19. Hammer plate; 20. Hammer plate; 21. Hammer baffle; 22. Hammer fixing plate; 23. Bag separating plate; 24. Adjusting rack; 25. Carriage guide rod; 26. Adjusting gear; 27. Screw locking threaded hole; 28. Gear shearing drive cylinder; 29. ​​Gear shearing plate; 30. Gear shearing; 31. Hammer bottom plate; 32. Hammer side plate; 33. Material pushing plate; 34. Bag pressing plate; 35. Bag pressing arm; 36. Push cylinder; 37. Bag pressing cylinder; 38. Rotating rod; 39. Bag pressing connecting rod; 40. Feeding guide rail; 41. Hopper mounting base; 42. Feeding transverse drive motor; 43. Gear; 44. Rack; 45. Feeding front and rear drive motor; 46. Feeding screw; 47. Feeding nut seat; 48. Upper bag support plate; 49. Lower bag support plate; 50. Upper bag support control cylinder; 61. Lower bag support control cylinder. 51. Bag pressing wheel; 52. Bag placing plate; 53. Clamping opening; 54. Finger cylinder; 55. Bag body gripper; 56. Material tray; 57. Drive roller assembly; 58. Clamping and pressing roller assembly; 59. Hot knife mechanism; 60. Discharge finger cylinder; 61. Discharge port; 100. Material receiving assembly; 200. Material feeding into bag assembly; 201. Material pushing mechanism; 300. Bag supporting assembly; 400. Bag closing and discharging assembly. Detailed Implementation

[0031] The following will refer to the appendix in the embodiments of this utility model. Figure 1-15 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Example: like Figures 1 to 4As shown, this utility model discloses a novel fully automatic self-sealing bag filling machine, which includes a frame 1. On the frame 1, a receiving assembly 100, a bag feeding assembly 200, a bag supporting assembly 300, and a bag closing and discharging assembly 400 are arranged sequentially. The receiving assembly 100 is located at the upper front of the frame 1 and is used to receive small-sized self-sealing bags continuously output from the previous production line. The bag feeding assembly 200 is located directly below the receiving assembly 100 and is responsible for receiving and pushing stacked small self-sealing bags. The bag supporting assembly 300 is located behind the bag feeding assembly 200 and is used to open larger self-sealing bags for filling. The bag closing and discharging assembly 400 is located on one side of the bag supporting assembly and completes sealing, cutting, and finished product output. It is worth noting that the bag-supporting assembly 300 and the bag-closing and discharging assembly 400 are each provided on the left and right sides of the frame 1, forming a dual-station parallel operation structure. The feeding and bagging assembly 200 includes two material pushing mechanisms 201 arranged left and right, a feeding lateral drive mechanism for controlling the left and right movement of the two material pushing mechanisms 201, and a feeding front and back drive mechanism for controlling the back and forth movement of the two material pushing mechanisms 201. The two bag-supporting assemblies 300 and the bag-closing and discharging assembly 400 work together with the dual material pushing mechanisms to significantly improve the overall machine capacity.

[0033] Among them, such as Figure 5 and Figure 6 As shown, the receiving assembly 100 includes a receiving rack 2 fixed on the frame 1. The receiving rack 2 has four vertically connected receiving frames 3, which can simultaneously connect to the conveyor belts of four upstream production lines to achieve multi-channel synchronous feeding. The receiving rack 2 has an upper receiving mechanism and a lower receiving mechanism on the front and rear sides of the receiving frames 3, respectively, with the lower receiving mechanism located below the upper receiving mechanism.

[0034] Specifically, the upper receiving mechanism includes several upper receiving strips 5 for inserting into the receiving frame 3 from front to back, and an upper receiving strip driving mechanism for driving the upper receiving strips 5 to move back and forth. The upper receiving strip driving mechanism includes an upper receiving strip driving cylinder 6 fixed on the receiving frame 2. The upper receiving strips 5 are connected to the upper receiving strip driving cylinder 6. The receiving frame 2 has an insertion port 4 for inserting the upper receiving strips 5 into the receiving frame 3.

[0035] The lower receiving mechanism includes several receiving lower strips 7 inserted from back to front into the lower side of the receiving frame 3, and a lower strip driving mechanism for driving the receiving lower strips 7 to move back and forth.

[0036] When the bagging machine of this application is in operation, small self-sealing bags continuously output from the previous production line are conveyed by a conveyor belt to the receiving frame 3 on the upper side of the receiving rack 2. Four receiving frames 3 can simultaneously transport small self-sealing bags from multiple previous production lines. In the initial state, the lower receiving strip 7 is inserted under the receiving frame 3, while the upper receiving strip 5 moves forward out of the receiving frame 3. This allows the small self-sealing bags to fall directly onto the lower receiving strip 7. When a certain number of small self-sealing bags are on the lower receiving strip 7 (e.g., through photoelectric counting or thickness detection), the upper receiving strip 5 moves backward and inserts into the receiving frame 3, causing subsequent small self-sealing bags to fall onto the upper receiving strip 5. Meanwhile, the lower receiving strip 7 retracts from the receiving frame 3 when the material pushing mechanism reaches its lower side, causing the small self-sealing bags on the lower receiving strip 7 to fall into the material pushing mechanism. The two material pushing mechanisms first reach the two corresponding receiving frames 3. The receiving lower inserts 7 of the two receiving frames 3 first retract backward from the receiving frames 3, causing the small self-sealing bags inside the two receiving frames 3 to fall into the material pushing mechanism. Then, the feeding lateral drive mechanism drives the material pushing mechanism to move laterally to the lower side of the other two receiving frames 3. The receiving lower inserts 7 of the two receiving frames 3 then retract backward from the receiving frames 3, causing the small self-sealing bags inside the two receiving frames 3 to fall into the material pushing mechanism. Thus, the material pushing mechanism gathers the small self-sealing bags from the two receiving frames 3. Then, the material pushing mechanism sends the small self-sealing bags to the bag support assembly. At the same time, the receiving lower inserts 7 return to the lower side of the receiving frames 3, while the receiving upper inserts 5 move forward out of the receiving frames 3. The small self-sealing bags located on the receiving upper inserts 5 fall into the receiving lower inserts 7. The small self-sealing bags continuously output from the previous production line also fall directly into the receiving lower inserts 7. Once the receiving lower inserts 7 are full, the cycle begins again. The small self-sealing bags, which are fed to the bag-supporting assembly by the material pushing mechanism, then enter the large self-sealing bag. Before this, the bag-supporting assembly opens the large self-sealing bag to wait for the material pushing mechanism to feed in the small self-sealing bags. After the small self-sealing bags are fed in, the large self-sealing bags are closed and discharged by the bag-closing and discharge assembly. Since the bag-supporting assembly and the bag-closing and discharge assembly are both located on the left and right sides of the frame 1, and together with the two material pushing mechanisms, efficiency can be improved. The four receiving frames 3, together with the upper receiving strip 5 and the lower receiving strip 7, can enable the upstream production line to continuously output small self-sealing bags without interruption, which greatly improves efficiency.

[0037] Among them, such as Figure 5 and Figure 6As shown, the lower receiving mechanism also includes a lifting seat 8, a lifting motor mounting plate 9, a lifting motor 10, and a ball screw 11. The lifting seat 8 is slidably connected to the receiving frame 2 via a slide rail slider combination. The lifting motor mounting plate 9 is fixed to the receiving frame 2, and the lifting motor 10 is fixed to the lifting motor mounting plate 9. The ball screw 11 is vertically rotatably connected to the lifting motor mounting plate 9. The lifting motor 10 drives the ball screw 11 to rotate via a combination of a conveyor wheel and a conveyor belt. A nut seat 12 with a threaded fit on the ball screw 11 is connected to the lifting seat 8. By controlling the rotation of the ball screw 11 through the lifting motor 10, the lifting seat 8 can be moved up and down, thereby controlling the up and down movement of the receiving lower insert 7 as needed. When the receiving lower insert 7 receives small self-sealing bags output from the previous production line, it can move upward. When it is necessary to drop the small self-sealing bags on the receiving lower insert 7 into the material pushing mechanism, it can move downward. This helps the small self-sealing bags to be more neat and stable during operation, preventing errors. The lower insert drive mechanism includes four lower insert drive cylinders 13 fixed on the lifting base 8. The four lower insert drive cylinders 13 are respectively connected to the receiving lower inserts 7 that enter the lower side of different receiving frames 3. In this way, the receiving lower inserts 7 under the lower side of different receiving frames 3 can be controlled to exit the receiving frame 3, so that the small self-sealing bags of the receiving frame 3 fall into the material pushing mechanism that reaches the lower side of the receiving frame 3.

[0038] Furthermore, such as Figures 5 to 8 As shown, the receiving rack 2 is equipped with a tapping mechanism to vibrate the receiving frame 3, which is used to prevent the small self-sealing bags from getting stuck during the receiving process. The tapping mechanism includes a tapping motor base 14, a tapping motor 15, a tapping pulley 16, a connecting rod 17, and a tapping mounting plate 18. The tapping motor base 14 is connected to the receiving frame 2, the tapping motor 15 is fixed to the tapping motor base 14, the tapping pulley 16 is rotatably connected to the tapping motor base 14, and the tapping motor 15 drives the tapping pulley 16 to rotate via a synchronous belt. One end of the connecting rod 17 is eccentrically rotatably connected to the tapping pulley 16, and the other end of the connecting rod 17 is rotatably connected to the tapping mounting plate 18. The receiving frame 3 has a hopper tapping plate 19 on its rear side, which is fixedly connected to the tapping mounting plate 18. The receiving frame 3 also includes four hopper baffles 20 fixed to the hopper tapping plate 19, a hopper fixing plate 21 fixed to the front side of the receiving frame 2 and extending toward the hopper tapping plate 19, and a bag-separating plate 22 correspondingly located below the hopper baffles 20. The tapping motor 15 controls the rotation of the tapping pulley 16, which in turn drives the tapping mounting plate 18 and the hopper tapping plate 19 via the connecting rod 17. The hopper tapping plate 19 and the hopper baffle 20 perform back-and-forth tapping vibrations, which automatically straightens and compacts the falling small self-sealing bags, ensuring neat stacking. The receiving frame 3 is specifically composed of the receiving frame 2, the hopper tapping plate 19, the hopper baffle 20, the hopper fixing plate 21, and the bag separating plate 22. These structures constitute four receiving frames 3.

[0039] In addition, the tapping motor base 14 is slidably connected to the receiving rack 2 via a slide rail slider structure. An adjusting rack 23 is fixedly connected to the receiving rack 2, and a traveling rod 24 is rotatably connected to the tapping motor base 14. An adjusting gear 25 meshing with the adjusting rack 23 is keyed to the traveling rod 24. The tapping motor base 14 has a screw locking threaded hole 26 that leads to the side wall of the traveling rod 24 at the position where it rotates. By rotating the traveling rod 24, the front and rear positions of the entire tapping mechanism can be adjusted to accommodate small self-sealing bags of different lengths. After adjustment, the screw is tightened to fix the screw locking threaded hole 26 against the side wall of the traveling rod 24, thereby forming a fixed position. The operation is flexible and the positioning is reliable.

[0040] Furthermore, a tooth-driven cylinder 27 is fixedly connected to the hopper clapper 19, and a tooth-driven plate 28 located on the upper side of the hopper clapper 19 is fixedly connected to the tooth-driven cylinder 27. Several teeth 29 extending downward into the receiving frame 3 and protruding from the lower side of the receiving frame 3 are fixedly connected to the tooth-driven plate 28. These teeth 29 are close to the hopper clapper 19. The teeth 29 allow the receiving strip 7 to pass through, and the teeth 29 prevent the small self-sealing bag on the receiving strip 7 from moving with the receiving strip 7 when the receiving strip 7 moves backward out of the lower side of the receiving hopper. The teeth 29 can move up and down under the control of the tooth-driven cylinder 27, so that when the material pushing mechanism moves backward, the teeth 29 move upward to prevent interference with the material pushing mechanism.

[0041] like Figures 9 to 12As shown, the material pushing mechanism includes a hopper bottom plate 30, hopper side plates 31, a material pushing plate 32, a bag-pressing plate 33, a pushing cylinder 35, and a bag-pressing cylinder 36. Two hopper side plates 31 are provided and fixed to the rear sides of the hopper bottom plate 30 respectively. The material pushing plate 32 is L-shaped and movably disposed between the two hopper side plates 31. The pushing cylinder 35 is fixed to the hopper bottom plate 30 and fixedly connected to the material pushing plate 32. The bag-pressing plate 33 is movably disposed on the material pushing plate. On plate 32, a bag-pressing arm 34 extending upward and forward is integrally formed on bag-pressing plate 33. The cylinder body of bag-pressing cylinder 36 is hinged to the bottom plate 30 of hopper. The piston of bag-pressing cylinder 36 is hinged to rotating rod 37. The other end of rotating rod 37 is hinged to bottom plate 30 of hopper. A bag-pressing connecting rod 38 is also hinged to the piston of bag-pressing cylinder 36. The bag-pressing connecting rod 38 is hinged to bag-pressing arm 34. The rear sides of hopper bottom plate 30 and material push plate 32 are both inclined upward. The small self-sealing bags falling from the receiving strip 7 land on the material pushing plate 32 between the two hopper side plates 31. Initially, the bag-pressing plate 33 is raised to avoid interfering with the small self-sealing bags falling onto the material pushing plate 32. After the bag-pressing plate 33 has finished falling, the bag-pressing cylinder 36 actuates to press the bag-pressing plate 33 downward to flatten and stack the material. Then, the entire material pushing mechanism moves backward to the front of the bag-supporting assembly under the drive of the feeding front and rear drive mechanism. After reaching the designated position, the pushing cylinder 35 actuates to drive the material pushing plate 32 to push backward, sending the small self-sealing bags into the already opened large self-sealing bags. The hopper bottom plate 30 and the rear side of the material pushing plate 32 are both designed to be inclined upward, which helps to keep the small self-sealing bags neat and prevents them from falling out of the pushing plate, keeping the small self-sealing bags stable during the pushing process.

[0042] The movement of the feeding bag assembly is controlled by the feeding lateral drive mechanism and the feeding front and rear drive mechanism. A feeding guide rail 39 arranged front and back is fixedly connected to the frame 1. A hopper mounting base 40 is slidably connected to the feeding guide rail 39. The hopper bottom plate 30 is slidably mounted on the hopper mounting base 40 via a slide rail slider assembly. The feeding lateral drive mechanism includes a feeding lateral drive motor 41, a gear 42, and a rack 43. Two racks 43 are provided and fixed one-to-one on the hopper bottom plates 30 of the two material pushing mechanisms. The feeding lateral drive motor 41 is fixed on the hopper mounting base 40 and connected to the gear 42. The two racks 43 are respectively meshed on both sides of the gear 42. By driving the gear 42 through the feeding lateral drive motor 41, the racks 43 can be driven to achieve synchronous opposite or opposite movements of the two pushing mechanisms, thereby accurately aligning any two receiving frames 3.

[0043] The feeding drive mechanism includes a feeding drive motor 44 and a feeding screw 45. The feeding screw 45 is rotatably connected to the frame 1. The feeding drive motor 44 is fixed to the frame 1 and drives the feeding screw 45 to rotate. The hopper mounting base 40 is provided with a feeding nut seat 46 threadedly connected to the feeding screw 45. The feeding drive motor 44 drives the hopper mounting base 40 to move back and forth through the feeding screw 45, thereby controlling the material push plate 32 to approach the bag support assembly. After the material push plate 32 approaches the bag support assembly, the push cylinder 35 drives the material push plate 32 to push it backward, sending the small self-sealing bag into the already opened large self-sealing bag.

[0044] like Figures 13 to 15 As shown, the bag support assembly includes an upper bag support plate 47 and a lower bag support plate 48. The frame 1 is also equipped with an upper bag support control cylinder 49 for controlling the upper bag support plate 47 to move up and down, and a lower bag support control cylinder 50 for controlling the lower bag support plate 48 to move up and down. A bag pressing wheel 51 is provided on the upper side of the upper bag support plate 47, and a bag placing plate 52 is fixed on the lower side of the lower bag support plate 48. The bag placing plate 52 has a clamping opening 53. A finger cylinder 54 is fixedly provided on the frame 1 behind the clamping opening 53. A bag gripper 55 located in the clamping opening 53 is connected to the finger cylinder 54. Material trays 56 are provided on the left and right sides of the frame 1 corresponding to the two bag support assemblies. A transmission roller group 57 is provided between the material tray 56 and the bag support assembly.

[0045] Large self-sealing bags are made of polyethylene film folded into long strips with interlocking structures on both sides. The middle section is folded to align the interlocking structures on both sides, and then cut by a heat-sealing mechanism 59 to form large self-sealing bags. These large self-sealing bags are stored in rolls on trays 56 on the left and right sides of the frame 1 and conveyed to the bag-opening station via a transmission roller group 57. The bag body is folded in the middle, and the zipper structures on both sides are located between the upper bag-opening plate 47 and the pressure roller 51, and between the lower bag-opening plate 48 and the bag-placement plate 52, respectively. Upper and lower bag-opening control cylinders drive the upper and lower bag-opening plates to move up and down, automatically opening or closing the bag opening. The bag-placement plate 52 has a clamping opening 53, and a finger cylinder 54 is fixed to its rear side. The output end of the finger cylinder 54 is connected to a bag-body gripper 55 and extends into the clamping opening 53. After the material pushing mechanism pushes the small self-sealing bag into the large bag, the finger cylinder 54 immediately actuates, and the bag gripper 55 clamps the small self-sealing bag inside the large bag to prevent it from being pulled out when the material pushing plate 32 moves forward and resets. After the material pushing plate 32 has completely retracted, the bag gripper 55 releases, leaving the small self-sealing bag in the large bag. Finally, the large self-sealing bag is closed and sent out through the bag closing and discharging assembly.

[0046] The bag-closing and discharging assembly includes a clamping mechanism located on one side of the upper bag support plate 47 and the lower bag support plate 48, a hot-cutting mechanism 59 located on one side of the clamping mechanism, and a discharging mechanism located on one side of the hot-cutting mechanism 59. The clamping mechanism includes a clamping pressure roller assembly 58. The large self-sealing bag is pressed together by passing through the clamping pressure roller assembly 58, and then passes through the hot-cutting mechanism 59, which cuts it. The discharging mechanism has a discharging finger cylinder 60 that can move left and right. It uses a gripper to clamp out the cut large self-sealing bag, and then releases it at the discharging port 61, allowing the large self-sealing bag to fall downwards.

[0047] In summary, this application, through innovative designs such as four-station material receiving, dual-pushing mechanism, dual bagging station, and alternating upper and lower inserts, completely eliminates the intermittent "stop-load-start" operation mode in traditional equipment, realizes continuous material supply in the front-end production line and parallel processing of bagging in the back-end, significantly improves the packaging efficiency and automation level of self-sealing bags, and has significant technological progress and practical value.

[0048] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel fully automatic self-sealing bag filling machine, comprising a frame, characterized in that: The frame is equipped with a receiving assembly, a bag feeding assembly located below the receiving assembly, a bag supporting assembly located behind the bag feeding assembly, and a bag closing and discharging assembly located on one side of the bag supporting assembly. The bag supporting assembly and the bag closing and discharging assembly are each located on the left and right sides of the frame. The bag feeding assembly includes two material pushing mechanisms arranged left and right, a lateral feeding drive mechanism for controlling the left and right movement of the two material pushing mechanisms, and a forward and backward feeding drive mechanism for controlling the forward and backward movement of the two material pushing mechanisms. The receiving assembly includes a fixed... The receiving rack on the frame has four vertically connected receiving frames. The receiving rack has an upper receiving mechanism and a lower receiving mechanism on the front and rear sides of the receiving frames, respectively. The lower receiving mechanism is located below the upper receiving mechanism. The upper receiving mechanism includes several upper receiving strips for inserting into the receiving frames from front to back, and an upper receiving strip driving mechanism for driving the upper receiving strips to move back and forth. The lower receiving mechanism includes several lower receiving strips for inserting into the lower side of the receiving frames from back to front, and a lower receiving strip driving mechanism for driving the lower receiving strips to move back and forth.

2. The novel fully automatic self-sealing bag filling machine according to claim 1, characterized in that: The lower receiving mechanism also includes a lifting seat, a lifting motor mounting plate, a lifting motor, and a ball screw. The lifting seat is slidably connected to the receiving frame. The lifting motor mounting plate is fixed to the receiving frame. The lifting motor is fixed to the lifting motor mounting plate. The ball screw is vertically rotatably connected to the lifting motor mounting plate. The lifting motor is used to drive the ball screw to rotate. A nut seat with a threaded fit on the ball screw is connected to the lifting seat. The lower insert drive mechanism includes four lower insert drive cylinders fixed to the lifting seat. The four lower insert drive cylinders are respectively connected to the receiving lower inserts that enter the lower side of different receiving frames.

3. The novel fully automatic self-sealing bag filling machine according to claim 1, characterized in that: The upper insert drive mechanism includes an upper insert drive cylinder fixed on the receiving frame. The receiving upper insert is connected to the upper insert drive cylinder. The receiving frame has an opening for inserting the receiving upper insert into the receiving frame.

4. A novel fully automatic self-sealing bag filling machine according to claim 1, characterized in that: The receiving frame is equipped with a tapping mechanism for vibrating the receiving frame. The tapping mechanism includes a tapping motor base, a tapping motor, a tapping pulley, a connecting rod, and a tapping mounting plate. The tapping motor base is connected to the receiving frame, and the tapping motor is fixed to the tapping motor base. The tapping pulley is rotatably connected to the tapping motor base and is used to drive the tapping pulley to rotate. One end of the connecting rod is eccentrically rotatably connected to the tapping pulley, and the other end of the connecting rod is rotatably connected to the tapping mounting plate. The receiving frame has a hopper tapping plate on its rear side, which is fixedly connected to the tapping mounting plate. The receiving frame also includes four hopper baffles fixed to the hopper tapping plate, a hopper fixing plate fixed to the front side of the receiving frame and extending toward the hopper tapping plate, and a bag-separating plate correspondingly located below the hopper baffles.

5. A novel fully automatic self-sealing bag filling machine according to claim 4, characterized in that: The tapping motor base is slidably connected to the receiving frame. An adjusting rack is fixedly connected to the receiving frame. A traveling rod is rotatably connected to the tapping motor base. An adjusting gear meshing with the adjusting rack is keyed to the traveling rod. A screw locking thread hole is provided on the tapping motor base at the position where it rotatably engages with the traveling rod.

6. A novel fully automatic self-sealing bag filling machine according to claim 4, characterized in that: A toothed drive cylinder is fixedly connected to the hopper clapper. A toothed plate located on the upper side of the hopper clapper is fixedly connected to the toothed drive cylinder. Several teeth extending downward into the receiving frame and passing through the lower side of the receiving frame are fixedly connected to the toothed plate. The teeth are close to the hopper clapper.

7. A novel fully automatic self-sealing bag filling machine according to claim 1, characterized in that: The material pushing mechanism includes a hopper bottom plate, hopper side plates, a material pushing plate, a bag pressing plate, a pushing cylinder, and a bag pressing cylinder. Two hopper side plates are provided and fixed to the rear sides of the hopper bottom plate respectively. The material pushing plate is L-shaped and movably disposed between the two hopper side plates. The pushing cylinder is fixed to the hopper bottom plate and fixedly connected to the material pushing plate. The bag pressing plate is movably disposed on the material pushing plate. A bag pressing arm extending upwards and forwards is integrally formed on the bag pressing plate. The cylinder body of the bag pressing cylinder is hinged to the hopper bottom plate. The piston of the bag pressing cylinder is hinged to a rotating rod, and the other end of the rotating rod is hinged to the hopper bottom plate. A bag pressing connecting rod is also hinged to the piston of the bag pressing cylinder. The bag pressing connecting rod is hinged to the bag pressing arm. The rear sides of both the hopper bottom plate and the material pushing plate are inclined upwards.

8. A novel fully automatic self-sealing bag filling machine according to claim 7, characterized in that: The frame is fixedly connected to a front-to-back feeding guide rail, and a hopper mounting base is slidably connected to the feeding guide rail. The hopper bottom plate is slidably mounted on the hopper mounting base. The feeding lateral drive mechanism includes a feeding lateral drive motor, gears, and racks. Two racks are provided and fixed to the hopper bottom plates of two material pushing mechanisms respectively. The feeding lateral drive motor is fixed to the hopper mounting base and connected to the gear. The two racks are respectively meshed on both sides of the gear. The feeding front-to-back drive mechanism includes a feeding front-to-back drive motor and a feeding screw. The feeding screw is rotatably connected to the frame. The feeding front-to-back drive motor is fixed to the frame and is used to drive the feeding screw to rotate. The hopper mounting base is provided with a feeding nut seat threadedly connected to the feeding screw.

9. A novel fully automatic self-sealing bag filling machine according to claim 8, characterized in that: The bag-supporting assembly includes an upper bag-supporting plate and a lower bag-supporting plate. The frame is also equipped with an upper bag-supporting control cylinder for controlling the upper bag-supporting plate to move up and down, and a lower bag-supporting control cylinder for controlling the lower bag-supporting plate to move up and down. A bag-pressing wheel is provided on the upper side of the upper bag-supporting plate, and a bag-placing plate is fixed on the lower side of the lower bag-supporting plate. A clamping opening is provided on the bag-placing plate. A finger cylinder is fixedly provided on the frame behind the clamping opening. A bag gripper located in the clamping opening is connected to the finger cylinder. Material trays are provided on both the left and right sides of the frame corresponding to the two bag-supporting assemblies. A transmission roller group is provided between the material tray and the bag-supporting assembly.

10. A novel fully automatic self-sealing bag filling machine according to claim 9, characterized in that: The bag-closing and discharging assembly includes a clamping mechanism located on one side of the upper and lower bag support plates, a hot-blade mechanism located on one side of the clamping mechanism, and a discharging mechanism located on one side of the hot-blade mechanism.

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