A liquid packing bag filling, heat sealing and vacuumizing integrated device and method

Abstract

The application discloses a liquid packing bag filling, heat sealing and vacuumizing integrated equipment and method, which comprises a rack and a protection part, a liquid packing bag incoming conveying part, a liquid packing bag grabbing part, a packing bag feeding part, a packing bag handover and bag supporting part, a packing bag vacuumizing and heat sealing part and a finished product discharging conveying part. Seven functional parts are integrated in one rack to realize full-process automation from liquid packing bag incoming to finished product discharging. The integrated design completely replaces traditional discrete operation relying on manual operation, greatly improves production efficiency, guarantees the smoothness and stability of the connection between processes, and fundamentally solves the problems of high labor intensity, low efficiency and poor consistency caused by manual mode.

Description

Technical Field

[0001] This invention relates to the field of packaging bag processing equipment technology, specifically to an integrated equipment and method for filling, heat sealing, and vacuuming liquid packaging bags. Background Technology

[0002] Currently, the industry commonly uses manual methods for bagging, vacuuming, and heat-sealing liquid packaging. In the early days, limited by technology and equipment, manual operation was a necessary compromise. Over time, although automation has increased across various industries, the liquid packaging sector has lagged behind. This continued manual operation has exposed numerous serious problems.

[0003] Manual bagging is extremely labor-intensive for workers, with prolonged repetitive bag-picking and placing actions easily leading to physical fatigue and low work efficiency. Statistics show that a skilled worker can only bag a few hundred liquid containers per day, which is insufficient to meet the ever-increasing market demand. Furthermore, manual operation makes it difficult to ensure consistency in every bagging session, resulting in untidy or misaligned liquid containers. This not only affects subsequent vacuuming and heat-sealing processes but can also lead to damage and leakage during transportation or storage, increasing the product defect rate.

[0004] Manual operation also has significant drawbacks in the vacuuming and heat-sealing processes. Manually inserting the vacuum device into the bag to create a vacuum makes it difficult to precisely control the vacuuming time and degree of vacuum. Furthermore, the control of temperature, pressure, and time during heat sealing varies from person to person. Insufficient vacuum can easily lead to product spoilage; inadequate or excessive heat sealing can damage the product's seal or the packaging material. This lack of standardization and precise control severely impacts product quality stability and fails to meet the stringent quality requirements of medical products. At the same time, manual operation requires a large workforce; with rising labor costs, production costs increase significantly, weakening the company's market competitiveness. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated equipment and method for filling, heat sealing and vacuuming liquid packaging bags, in order to solve the problems of insufficient material regularity and insufficient precision in automated bag loading, bag stretching and vacuum sealing of existing packaging bag processing equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, this application provides an integrated device for filling, heat-sealing, and vacuuming liquid packaging bags, comprising:

[0008] The system comprises a frame and protective section, a liquid packaging bag inlet conveyor section, a liquid packaging bag gripping section, a packaging bag feeding section, a packaging bag handover and support section, a packaging bag vacuuming and heat-sealing section, and a finished product unloading conveyor section. The liquid packaging bag inlet conveyor section is used to organize and transport liquid packaging bags. The liquid packaging bag gripping section is used to grip liquid packaging bags and transfer them to the bagging station. The packaging bag feeding section is used to provide and position packaging bags. The packaging bag handover and support section is used to receive packaging bags and complete the bag opening and support actions. The packaging bag vacuuming and heat-sealing section is used to vacuum and heat-seal the bagged packaging bags. The finished product unloading conveyor section is used to output the finished product. In the above solution, by integrating seven functional parts into one frame, the entire process from liquid packaging bag inlet to finished product unloading is fully automated. This integrated design completely replaces the traditional discrete operation that relies on manual labor, greatly improving production efficiency and ensuring the smoothness and stability of the connection between various processes. It fundamentally solves the problems of high labor intensity, low efficiency and poor consistency caused by manual mode.

[0009] In a preferred embodiment of this application, the liquid packaging bag feeding conveyor includes: a stainless steel frame body, a first driven wheel assembly, a double-row synchronous belt, a liquid packaging bag filling fixture, and a drive wheel assembly. The liquid packaging bag filling fixture includes liquid packaging bag pads, liquid packaging bag stops, and clamping fasteners for fixing and organizing the liquid packaging bags. In the above solution, the dedicated liquid packaging bag filling fixture and its constituent pads, stops, and clamping fasteners can effectively organize and fix the soft liquid bags, ensuring that each liquid bag is conveyed to the gripping station in a neat and consistent posture and position. This solves the problems of messy stacking and skewed posture that easily occur during manual feeding, providing a basic guarantee for the subsequent precise gripping by the robot.

[0010] In a preferred embodiment of this application, the liquid packaging bag gripping component includes a robot base, a robot, and a liquid bag gripper. The liquid bag gripper includes a robot flange, a gripper body structure, a first drive assembly, and a liquid bag holding rod. The liquid bag holding rod has a hollow structure and can be connected to an inert gas for inflation. In the above solution, a robot is used in conjunction with a specially designed liquid bag gripper for operation, resulting in precise, rapid, and programmable gripping actions. The hollow design of the liquid bag holding rod not only reduces friction during extraction, preventing the already filled liquid bag from being pulled out, but also allows for the introduction of inert gas to inflate the packaging bag before filling, preventing bag wall adhesion and ensuring smooth filling of the liquid bag, further improving the success rate and reliability of bagging.

[0011] In a preferred embodiment of this application, the packaging bag feeding section includes a feeding hopper, a packaging bag suction mechanism, and a packaging bag clamping and transferring mechanism. The feeding hopper includes a hopper baffle, a bag pressure plate, and a hopper support, and has an adjustable spacing function. The packaging bag suction mechanism includes a vacuum suction cup, a support body, and a first lifting mechanism. In the above solution, the feeding hopper has an adjustable spacing function, which can accommodate packaging bags of different sizes, enhancing the flexibility of the equipment. The cooperation between the bag pressure plate and the vacuum suction mechanism realizes automatic and reliable separation and retrieval of packaging bags, avoiding errors and inefficiencies caused by manual placement, and ensuring a high success rate for single-bag retrieval.

[0012] In a preferred embodiment of this application, the bag-handling and supporting portion includes a second mechanism body, a second lifting mechanism, a bag-gripping and flipping mechanism, a bag-opening mechanism, and a bag-opening mechanism. The bag-opening mechanism includes a third lifting mechanism, an opening and closing mechanism, and a bag suction cup. The bag-opening mechanism includes a bag-handling gripper, a lifting cylinder, an opening and closing cylinder, and a supporting sheet metal. In the above solution, through the coordinated operation of the gripping and flipping mechanism, the opening mechanism, and the opening mechanism, the bag's posture change from horizontal to vertical, the suction and opening of the bag opening, and the final mechanical opening and shaping are precisely completed. This series of fully automated operations replaces the difficult and inefficient manual bag-opening action, providing a stable and reliable bag-opening effect and a precise channel and target position for the robot to load the liquid bag.

[0013] In a preferred embodiment of this application, the vacuum heat-sealing section of the packaging bag includes a packaging bag transfer mechanism and a packaging bag vacuum heat-sealing mechanism; the packaging bag transfer mechanism includes a transfer drive mechanism, an opening and closing clamping mechanism, and a second gripper mechanism; the packaging bag vacuum heat-sealing mechanism includes a fourth lifting mechanism, a heat-sealing mechanism, and a vacuuming mechanism. In the above scheme, the bagged product is smoothly transferred to the vacuum heat-sealing station by the transfer mechanism, and the subsequent processing is completed by the integrated vacuum heat-sealing mechanism. This design realizes the automated flow between the bagging and sealing processes, avoids packaging bag displacement or contamination that may be caused by manual handling, and ensures the continuity of the process and hygiene standards.

[0014] In a preferred embodiment of this application, the heat-sealing mechanism includes a structural component, a first pressure-replacing drive, a second pressure-replacing drive, and a heating device; the vacuuming mechanism includes a structural body, a lowering cylinder, a mouth-supporting assembly, and a vacuuming assembly. In the above scheme, the heat-sealing mechanism employs two sets of pressure-replacing drives in conjunction with the heating device, ensuring uniform pressure and constant temperature during the heat-sealing process, thereby forming a strong and well-sealed edge. The vacuuming mechanism, through a precisely controllable vacuuming assembly, can accurately extract air from the bag to a preset vacuum level, and detect this through a vacuum valve. This precise control completely solves the core pain point of unstable vacuum level and heat-sealing quality in manual operation, making it particularly suitable for high-requirement fields such as medical products.

[0015] In a preferred embodiment of this application, the finished product unloading conveyor includes an unloading tilting roller and an unloading conveyor belt; the unloading tilting roller includes a roller body and a steering cylinder, used to tilt the packaging bag and drop it onto the unloading conveyor belt. In the above solution, the automatic tilting and unloading of the finished packaging bag is achieved through the cooperation of the tilting roller and the conveyor belt. This design is simple and reliable, can gently handle the finished product to avoid damage, and automatically transport the product to the next stage, completing the "last link" of the fully automated process without manual intervention.

[0016] Secondly, this application also provides an integrated method for filling, heat-sealing, and vacuuming liquid packaging bags. This method employs the integrated filling, heat-sealing, and vacuuming equipment for liquid packaging bags described above, and includes the following steps: a liquid packaging bag inlet conveyor section organizes and conveys the liquid packaging bags; a liquid packaging bag gripping section grips the liquid packaging bags and transfers them to the filling station; a packaging bag feeding section provides and positions the packaging bags; a packaging bag handover and support section completes the bag opening and support actions; the liquid packaging bags are filled into the supported packaging bags; a packaging bag vacuuming and heat-sealing section vacuums and heat-seals the filled packaging bags; and the finished product is output via a finished product unloading conveyor section. This method covers the complete process sequence from organizing the inlet material, automatic bag feeding, precise bag support, robotic bag filling, automatic vacuuming, to heat-sealing and unloading. This method systematically solves all the drawbacks of manual operation in terms of efficiency, consistency, labor intensity, and product quality, achieving high-standard, high-efficiency continuous production.

[0017] In a preferred embodiment of this application, the vacuuming and heat-sealing process is precisely controlled by a programmable control system to ensure that the vacuum level, temperature, pressure, and time of each packaging bag meet the required standards and are securely heat-sealed. In the above solution, the programmable control system digitally and precisely controls key process parameters such as vacuum level, temperature, pressure, and time, ensuring that the packaging quality of each product strictly meets preset standards, exhibiting extremely high repeatability and consistency. The product quality is stable and reliable, fully meeting the stringent packaging requirements of industries such as medical devices.

[0018] In summary, the beneficial effects achieved by adopting the proposed solution are as follows:

[0019] 1. Solving the problem of material uniformity: When operating manually, liquid packaging bags are prone to being stacked messily and in inconsistent postures. This invention requires the design of a dedicated material sorting mechanism to automatically sort liquid packaging bags, ensuring that the subsequent gripping and bagging processes can stably obtain materials with consistent postures, and avoiding bagging interruptions or errors caused by chaotic incoming materials.

[0020] 2. Overcoming the technical challenges of an automated bag-feeding and opening system: Manual bag feeding and opening relies on human labor to open and position the bag opening, resulting in low efficiency and poor consistency. This invention aims to develop an automated bag feeding and opening system that, through the cooperation of mechanical structures and sensors, achieves automatic conveying, precise positioning, and stable opening of packaging bags, ensuring that liquid packaging bags can be smoothly placed inside the main packaging system, thus replacing manual operation and improving stability.

[0021] 3. Achieving precision in automated bag grabbing and filling by robots: Manual bag grabbing and filling is prone to problems such as skewed placement and positional deviation. This invention optimizes the design of the robot's gripping mechanism and combines it with visual recognition technology to enable the robot to accurately identify the position and posture of liquid packaging bags, achieve stable gripping, and accurately and neatly place them into the already opened packaging bags, ensuring the consistency of the bagging position and laying a good foundation for subsequent vacuum heat sealing.

[0022] 4. Optimize the precise control of automatic vacuum heat sealing after bagging: Manual vacuum heat sealing is difficult to precisely control the vacuum degree, temperature, pressure and time. This invention requires the development of an automatic vacuum heat sealing module, which uses a programmable control system to precisely regulate the vacuum and heat sealing parameters, ensuring that the vacuum degree of each packaging bag meets the standard, the heat seal is firm and the sealing performance is stable, thus meeting the strict requirements of medical products for packaging quality.

[0023] 5. Improve overall equipment operating efficiency: To address the problem of low efficiency in manual operation, this invention reduces time wasted due to manual intervention through the automated connection design of each link, and realizes continuous and efficient operation of processes such as material handling, bag feeding and opening, bag gripping and filling, vacuum heat sealing, etc., which greatly increases the number of liquid packaging bags packaged per unit time and meets the growing market demand.

[0024] 6. Enhance equipment operational stability: Manual operation is greatly affected by the operator's condition, easily leading to operational deviations and quality fluctuations. This invention aims to reduce the failure rate during equipment operation by optimizing the mechanical structure and adopting reliable sensors and control systems. This ensures stable operation of each component even under long-term continuous work, guaranteeing product quality consistency and stability, and reducing the defect rate. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of an integrated bagging, heat-sealing, and vacuuming equipment for liquid packaging bags, as shown in an example. Figure 2 This is a schematic diagram of the frame and protective components in an example. Figure 3 This is a schematic diagram of the main structure of the rack in one example; Figure 4 Here is a schematic diagram of the welding frame structure in one example; Figure 5 This is a schematic diagram of a structure for installing a large board in an example; Figure 6 Here is a schematic diagram of the structure of a maintenance door in an example; Figure 7 Here is a schematic diagram of the electrical box in one example; Figure 8 This is a schematic diagram of the liquid bag material conveying section in an example. Figure 9 This is a schematic diagram of the structure of the first driven wheel assembly in an example; Figure 10 This is a schematic diagram of a liquid bag filling fixture in an example. Figure 11 Here is a schematic diagram of the drive wheel assembly in one example; Figure 12 This is a schematic diagram of the liquid bag gripping part in an example; Figure 13 This is a schematic diagram of the structure of a liquid bag gripper in an example; Figure 14 Here is a schematic diagram of the structure of the first driving component in an example; Figure 15 This is a schematic diagram of the packaging bag feeding section in an example. Figure 16 This is a schematic diagram of the feeding hopper structure in an example; Figure 17 This is a schematic diagram of a packaging bag suction mechanism in an example; Figure 18 This is a schematic diagram of a packaging bag clamping and transplanting mechanism in an example. Figure 19 This is a schematic diagram of the structure of the interlocking support bag in an example. Figure 20 This is a schematic diagram of the second lifting mechanism in one example; Figure 21 This is a schematic diagram of a packaging bag gripping and flipping mechanism in an example. Figure 22This is a schematic diagram of a bag opening mechanism in an example; Figure 23 This is a schematic diagram of the opening mechanism of a packaging bag in an example. Figure 24 This is a schematic diagram of the vacuuming and heat-sealing process of a packaging bag in an example. Figure 25 This is a schematic diagram of a packaging bag transplanting mechanism in an example; Figure 26 This is a schematic diagram of the transplanting drive mechanism in one example; Figure 27 This is a schematic diagram of an opening and closing clamping mechanism in an example. Figure 28 This is a schematic diagram of the second gripper mechanism in an example. Figure 29 This is a schematic diagram of a vacuum heat-sealing mechanism for a packaging bag in an example. Figure 30 Here is a schematic diagram of the fourth lifting mechanism in one example; Figure 31 This is a schematic diagram of a heat sealing mechanism in an example; Figure 32 Here is a schematic diagram of a vacuum pumping mechanism in an example; Figure 33 This is a schematic diagram of the finished product unloading and conveying section in an example; Figure 34 This is a schematic diagram of the structure of a feeding and turning roller in an example; Figure 35 This is a schematic diagram of the structure of a material feeding conveyor belt in an example.

[0027] List of components and reference numerals:

[0028] I. Frame and Protective Parts: 1100 Frame Body, 1101 Welded Frame, 1101-1 First Mounting Plate, 1101-2 Second Mounting Plate, 1101-3 Third Mounting Plate, 1102 Mounting Plate, 1103 Maintenance Door, 1103-1 Acrylic Sheet, 1103-2 Glass Door Hinge, 1103-3 Door Handle, 1103-4 Door Magnetic Attachment, 1104 Top Sealing Plate, 1105 Bottom Electrical Cabinet, 1106 Bottom Sealing Plate, 1200 Electrical Box, 1201 Left Side Electrical Box, 1202 Right Side Electrical Box; II. Liquid Packaging Bag Incoming Material Conveying Part: 2100 Stainless Steel Frame Body, 2200 First driven wheel assembly, 2201 Driven wheel shaft, 2202 T10 double synchronous belt pulley, 2300 Double row synchronous belt, 2400 Liquid packaging bag filling fixture, 2401 Liquid packaging bag padding strip, 2402 Liquid packaging bag retaining strip, 2403 Clamping and fixing component, 2500 Drive wheel assembly, 2501 First servo motor, 2502 First planetary reducer, 2503 T10 toothed double belt pulley, 2504 Drive shaft; III Liquid packaging bag gripping part, 3100 Robot base, 3200 Robot, 3300 Liquid bag gripper, 3310 Robot flange. 3320 Gripper body structure, 3330 First drive assembly, 3331 Cylinder, 3332 Linkage mechanism, 3340 Liquid bag gripping rod; IV Packaging bag feeding section, 4100 Feeding hopper, 4110 Hopper stop bar, 4120 Bag pressure plate, 4130 Hopper support component, 4200 Packaging bag suction mechanism, 4210 Vacuum suction cup, 4220 Support body, 4230 First lifting mechanism, 4300 Packaging bag gripping and transplanting mechanism, 4310 First mechanism body, 4320 Centering mechanism, 4330 First gripper mechanism, 4340 Transplanting mechanism; V Packaging bag handover and support section 5100 Second mechanism body, 5200 Second lifting mechanism, 5210 First linear module, 5220 Second planetary reducer, 5230 Second servo motor, 5240 Drag chain, 5300 Packaging bag gripping and flipping mechanism, 5310 Flipping component, 5320 First bag gripper, 5330 Flipping body structure, 5400 Bag opening mechanism, 5410 Third lifting mechanism, 5420 Opening and closing mechanism, 5430 Bag suction cup, 5500 Packaging bag opening mechanism, 5510 Bag transfer gripper, 5520 Lifting cylinder, 5530 Opening and closing cylinder, 5540 Bag support sheet metal;VI. Packaging bag vacuuming and heat sealing section: 6100 Packaging bag transfer mechanism, 6110 Transfer drive mechanism, 6111 Second linear module, 6112 First linear guide rail assembly, 6113 Fourth mounting plate, 6120 Opening and clamping mechanism, 6121 Second drive assembly, 6122 Second driven wheel assembly, 6123 Second linear guide rail assembly, 6124 Cylinder mounting plate, 6130 Second gripper mechanism, 6131 Fifth mounting plate, 6132 Drive cylinder, 6133 Connecting rod, 6134 Second bag gripper, 6200 Packaging bag vacuuming and heat sealing mechanism, 6210 Fourth lifting mechanism. 6211 Fixed large plate, 6212 Lifting drive, 6213 Pressing mounting plate, 6214 Pneumatic auxiliary material, 6220 Heat sealing mechanism, 6221 Structural component, 6222 Pressure drive one, 6223 Pressure drive two, 6224 Heating device, 6230 Vacuuming mechanism, 6231 Structural body, 6232 Lowering cylinder, 6233 Support assembly, 6234 Vacuuming assembly; VII Finished product unloading and conveying section, 7100 Unloading tilting roller, 7110 Roller body, 7120 Steering cylinder, 7200 Unloading conveyor belt, 7210 Conveyor belt body, 7220 Third drive assembly. Detailed Implementation

[0029] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings. It should be noted that many specific details are set forth in the following description to provide a thorough understanding of the invention; however, the invention can be implemented in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0030] like Figures 1-35 As shown, this application provides an integrated bagging, heat-sealing, and vacuuming device for liquid packaging bags. It consists of a frame and protective section I, a liquid packaging bag infeed conveying section II, a liquid packaging bag gripping section III, a packaging bag feeding section IV, a packaging bag transfer and support section V, a packaging bag vacuuming and heat-sealing section VI, and a finished product unloading conveying section VII. By integrating these seven functional parts into a single frame, the entire process from liquid packaging bag infeeding to finished product unloading is fully automated. This integrated design completely replaces the traditional discrete operation relying on manual labor, greatly improving production efficiency, ensuring smoothness and stability between processes, and fundamentally solving the problems of high labor intensity, low efficiency, and poor consistency caused by manual methods.

[0031] In one example, refer to Figure 2As shown, the frame and protective section I consists of two main parts: the frame body 1100 and the electrical box 1200. The frame 1100 is formed by welding 304 stainless steel square tubes to form a skeleton, and the mounting surface of the skeleton is covered with an aluminum mounting plate 1102. The electrical box 1200 is composed of stainless steel sheet metal bent and welded together.

[0032] Specifically, refer to Figures 3-7 As shown, the main frame 1100 consists of a welding frame 1101, a mounting plate 1102, a maintenance door 1103, a top sealing plate 1104, a bottom electrical cabinet 1105, a bottom sealing plate 1106, and frame accessories. The welding frame 1101, based on the application scenarios in the peritoneal dialysis fluid medical industry, is made of 304 stainless steel square tubing. To provide mounting positions for components, the first mounting plate 1101-1, the second mounting plate 1101-2, and the third mounting plate 1101-3 can be welded or screwed in. The mounting plate 1102 is made of 6061 aluminum, machined, and then hard chrome plated before being mounted on the welding frame 1101. The mounting plate 1102 serves as the mounting surface for the hopper structure, and machining ensures the installation accuracy at each position. The maintenance door 1103, for easy observation of the internal equipment operation, uses transparent acrylic panels for both the door and windows. There are three sizes of acrylic doors on the frame, but the components are identical. The maintenance door 1103 consists of an acrylic sheet 1103-1, a glass door hinge 1103-2, a door handle 1103-3, and a door magnetic clasp 1103-4. The top sealing plate 1104 is fixed to the top of the welding frame 1101 with screws; the bottom electrical cabinet 1105 is formed by bending and welding sheet metal and then fixed as a whole to the welding frame 1101; the bottom sealing plate 1106 mainly serves an aesthetic and protective function and is installed on the welding frame 1101 with screws. The rack accessories consist of purchased finished parts such as rack bottom support components, door catches, and hinges. The support components are the rack bottom feet. The electrical box 1200 is a 304 stainless steel bent electrical box, fixed to the top of the rack with screws. This installation facilitates disassembly, initial wiring, and subsequent cable routing, and allows for easy observation of the internal components during debugging or operation, while also maintaining an aesthetic appearance. The electrical box door and windows are composed of bent sheet metal and acrylic sheets.

[0033] To facilitate separation of the two racks during transport, the electrical boxes 1200 can be independently distributed on the two racks according to the rack size. The left electrical box 1201 is installed on the upper left side of the rack body 1100, and the right electrical box 1202 is installed on the upper right side of the rack body 1100.

[0034] In one example, refer to Figure 8 As shown, the liquid packaging bag infeed conveyor line II consists of five parts: a stainless steel frame body 2100, a first driven wheel assembly 2200, a double-row synchronous belt 2300, a liquid packaging bag filling fixture 2400, and a drive wheel assembly 2500. For details, please refer to... Figures 9-11 As shown, the first driven wheel assembly 2200 consists of a driven wheel shaft 2201 and a T10 double synchronous belt pulley 2202, realizing the driven function of the synchronous belt. A double-row synchronous belt 2300 connects the first driven wheel assembly 2200 and the drive wheel assembly 2500. Metal false teeth are installed at the root of the synchronous belt teeth as required for mounting the liquid packaging bag filling clamp 2400. The liquid packaging bag filling clamp 2400 consists of a liquid packaging bag pad 2401, a liquid packaging bag stop 2402, and a clamping and fixing component 2403. A cavity is set at regular intervals along the entire conveyor line to achieve the shaping and fixing function of the liquid packaging bag. The clamping and fixing component 2403 is made of 304 stainless steel sheet metal bent and uses the principle of spring compression to fix the liquid packaging bag. The drive wheel assembly 2500 consists of a first servo motor 2501, a first planetary reducer 2502, a T10 tooth double pulley 2503, a drive shaft 2504, and other accessories such as couplings and bearing housings. The first servo motor 2501 uses an absolute encoder servo to precisely control the start and stop positions of the material receiving line, ensuring material handling accuracy.

[0035] In one example, refer to Figure 12 As shown, the liquid packaging bag gripping section III consists of a robot base 3100, a robot 3200, and a liquid bag gripper 3300. The liquid bags are conveyed to the product unloading position by the liquid packaging bag inlet conveyor line II. The liquid bag gripper 3300 grips the product twice and moves it into the bagging station. For details, refer to... Figures 13-14As shown, the robot base 3100 is welded from 304 stainless steel square tubing. A fixed plate is installed at the bottom of the robot base 3100, and it is secured to the ground with chemical bolts to ensure the stability of the robot 3200 during operation. The robot 3200 uses an industrial 4-axis, 6-axis, or high-load collaborative robot, achieving the overall motion flow according to the required arm span. The liquid bag gripper 3300 adopts a dual-grip principle, realizing a dual-grip, dual-release function. It can also be expanded to achieve single-grip, single-release, or triple-grip, triple-release motion flows as needed. The overall structure includes a robot flange 3310, a gripper body structure 3320, a first drive assembly 3330, a liquid bag gripping rod 3340, and accessories such as a pressure reducing valve and pneumatic connectors. The robot flange 3310 is machined from 6061 aluminum to reduce its weight and is used to connect to the robot 3200. The gripper body structure 3320, also machined from 6061 aluminum, is the fixed body of the entire gripper. The distance between the two sets of gripping components is determined by the spacing of the liquid packaging bag filling fixture 2400, and can be configured with double grippers, triple grippers, etc., according to production capacity requirements. The first drive component 3330 is driven by a cylinder 3331 and a linkage mechanism 3332 to realize the gripper's gripping and closing functions. The liquid bag gripping rod 3340, a rod-shaped gripping device, reduces friction during the bagging process and prevents the liquid bag from being pulled out again. It can effectively avoid material carrying away when the liquid bag gripper 3300 is pulled out after bagging. The gripping rod has a hollow rod structure, which can be connected to inert gas, allowing for simultaneous inflation of the bag during the bagging process.

[0036] In one example, refer to Figure 15 As shown, the packaging bag feeding section consists of a feeding hopper 4100, a packaging bag suction mechanism 4200, and a packaging bag clamping and transferring mechanism 4300. For details, please refer to... Figures 16-18As shown, the feeding hopper 4100 consists of a hopper baffle 4110, a bag pressure plate 4120, and a hopper support 4130. The hopper baffle 4110 is mounted on the hopper support 4130. The hopper baffle 4110 is made of 304 stainless steel and has an adjustable spacing function, allowing for buffering of bags of different sizes. The bag pressure plate 4120 is a bag-pressing device for the uppermost bags, solving the problem of suction failure due to a small number of bags at the bottom. The bag pressure plate 4120 enables the suction of the bottommost bags. The bag pressure plate 4120 is designed with suction cup clearance holes; when no bags are available, a vacuum suction alarm is triggered, prompting the feeding personnel to add materials promptly. The hopper support 4130 serves as a support structure for the hopper baffle 4110 and the bag pressure plate 4120. The packaging bag suction mechanism 4200 consists of a vacuum suction cup 4210, a support body 4220, and a first lifting mechanism 4230. The first lifting mechanism 4230 drives the vacuum suction cup 4210 to perform the function of suctioning and unloading packaging bags. The vacuum suction cup 4210 consists of multiple sets of soft bag suction cups, hollow suction rods, and other accessories to achieve the function of vacuum suction of packaging bags. Other accessories include components such as a vacuum generator and vacuum detection instruments. The support body 4220 is used to fix the first lifting mechanism 4230 and the vacuum suction cup 4210. The mechanism body includes standard linear bearings and machined parts. The first lifting mechanism 4230 is driven by a cylinder to drive the vacuum suction cup 4210 to move up and down. The packaging bag clamping and transferring mechanism 4300 consists of a first mechanism body 4310, a centering mechanism 4320, a first gripper mechanism 4330, and a transferring mechanism 4340. Vacuum suction cup 4210 lifts a single packaging bag downwards and places it onto centering mechanism 4320. Centering mechanism 4320 performs secondary positioning and centering of the packaging bag, then first gripper mechanism 4330 grips the packaging bag, and finally transfer mechanism 4340 transfers the packaging bag laterally to the next station. The first mechanism body 4310 is composed of stainless steel sheet metal, support base, etc., to support a single packaging bag. Centering mechanism 4320 consists of three sets of centering cylinders, two laterally and one longitudinally, to position the single packaging bag. The centering cylinders are fixed on an adjusting bracket; when changing packaging bag sizes, the position of the centering cylinders is adjusted to accommodate multiple sizes of packaging bags. First gripper mechanism 4330 consists of finger cylinders and bag gripping teeth; the teeth mesh to clamp the packaging bag. Transfer mechanism 4340 consists of a linear module and a servo motor. First gripper mechanism 4330 is fixed to the linear module's moving slider with screws. The displacement function between two points of the packaging bag is achieved by using a servo motor drive.

[0037] In one example, refer to Figure 19As shown, the bag handover and support section V consists of a second mechanism body 5100, a second lifting mechanism 5200, a bag gripping and flipping mechanism 5300, a bag opening mechanism 5400, and a bag opening mechanism 5500. The transfer mechanism 4340 grips and transfers the bag to the unloading point. The bag gripping and flipping mechanism 5300 grips the bag, flips it 90 degrees, and then the second lifting mechanism 5200 raises it to the bag opening mechanism 5400. A suction cup is used to open the bag opening, and the bag opening mechanism 5500 then provides internal support and positioning for the bag. For details, refer to... Figures 20-23As shown, the second mechanism body 5100 is welded from 304 stainless steel square tubing and fixed to the mounting plate 1102 by screws after welding. The second lifting mechanism 5200 consists of a first linear module 5210, a second planetary reducer 5220, a second servo motor 5230, and a cable chain 5240. The lifting function is achieved by the servo motor drive. The packaging bag gripping and flipping mechanism 5300 consists of a flipping component 5310, a first bag gripper 5320, and a flipping body structure 5330. The flipping component 5310 is driven by a rotary cylinder, which is fixed to an L-shaped mounting base. The L-shaped mounting base is fixed to the slider of the first linear module 5210 by screws. The 90-degree flipping of the rotary cylinder achieves the action of turning the packaging bag from horizontal to vertical. The first bag gripper 5320 is fixed to the flipping body structure 5330 and is driven by a finger cylinder, performing bag transfer and picking on the first gripper mechanism 4330. The bag opening mechanism 5400 consists of a third lifting mechanism 5410, an opening and closing mechanism 5420, and a bag suction cup 5430. The packaging bag gripping and flipping mechanism 5300 is driven to the bag-supporting position by the first linear module 5210. The third lifting mechanism 5410 drives the entire bag opening mechanism 5400 to rise and fall, the bag suction cup 5430 picks up the packaging bag, and the opening and closing mechanism 5420 pulls the bag open. The third lifting mechanism 5410 consists of a slide cylinder and machining parts, which drives the entire bag opening mechanism 5400 to rise or fall. The opening and closing mechanism 5420 is fixed to the third lifting mechanism 5410 with screws and consists of a parallel gripper cylinder. The bag suction cup 5430 consists of a soft bag suction cup, a vacuum generator, and a vacuum instrument, realizing the function of picking up and fixing the packaging bag. The packaging bag opening mechanism 5500 consists of a bag transfer gripper 5510, a lifting cylinder 5520, an opening and closing cylinder 5530, and a bag-supporting sheet metal 5540. The packaging bag is lifted to the opening position by the first bag gripper 5320, and the bag transfer gripper 5510 picks up the packaging bag. After the packaging bag is picked up and opened by the bag opening mechanism 5400, the lifting cylinder 5520 drives the opening and closing cylinder 5530 to descend into the bag opening. The opening and closing cylinder 5530 then drives the bag-supporting sheet metal 5540 to fully open the bag opening. After the bag opening is fully open, the liquid bag gripper 3300 picks up two liquid bags and inserts them into the packaging bag, thus achieving the function of liquid bag packaging. Among them, the bag handover gripper 5510 consists of a gripper fixing component and a gripper cylinder, realizing the function of temporary handover and fixing of the packaging bag; the lifting cylinder 5520 is a sliding cylinder and is fixed to the second mechanism body 5100 with screws; the opening and closing cylinder 5530 is a thin opening and closing cylinder and is fixed to the lifting cylinder 5520 with screws; the bag supporting sheet metal 5540 is made of 304 stainless steel, designed according to the size of the bag, and fixed to the opening and closing cylinder 5530 with screws to realize the function of opening and positioning of the packaging bag.

[0038] In one example, refer to Figure 24 As shown, the vacuuming and heat-sealing section VI of the packaging bag consists of a packaging bag transfer mechanism 6100 and a packaging bag vacuuming and heat-sealing mechanism 6200. The packaging bag transfer mechanism 6100 is fixed to the welding frame 1101 with screws; the packaging bag vacuuming and heat-sealing mechanism 6200 is also fixed to the welding frame 1101 with screws. The transfer mechanism 6100, through a driving gripper bar, picks up the packaged packaging bag and places it at the packaging bag vacuuming and heat-sealing mechanism 6200, thus realizing the vacuuming and heat-sealing process. For details, refer to... Figures 25-32 As shown, the packaging bag transplanting mechanism 6100 includes a transplanting drive mechanism 6110, an opening and closing clamping mechanism 6120, and a second gripper mechanism 6130. The opening and closing clamping mechanism 6120 is fixed to the slider of the transplanting drive mechanism 6110 by screws, and the second gripper mechanism 6130 is fixed to the slider of the opening and closing clamping mechanism 6120 by screws. The transplanting drive mechanism 6110 includes a second linear module 6111, a first linear guide rail assembly 6112, and a fourth mounting plate 6113. The fourth mounting plate 6113 is fixed to the first linear guide rail assembly 6112 by screws. The second linear module 6111 is driven by a servo motor to realize the movement function of the mechanism. The second linear module 6111 includes a linear module body and adopts a belt-driven linear module to realize the transplanting function. It also includes a direct-drive planetary reducer and a servo motor. The first linear guide rail assembly 6112 includes a linear guide rail, a slider, and a processing pad. The linear guide rail is fixed to the machining pad with screws, and the machining pad is fixed to the welding frame 1101 with screws. The fourth mounting plate 6113 is made of 6061 aluminum and connects the second linear module 6111 and the first linear guide rail assemblies 6112 on both sides through the fourth mounting plate 6113. The opening and closing clamping mechanism 6120 consists of a second drive assembly 6121, a second driven wheel assembly 6122, a second linear guide rail assembly 6123, and a cylinder mounting plate 6124. The second drive assembly 6121 is fixed to the fourth mounting plate 6113 with screws. The second driven wheel assembly 6122 is fixed to the fourth mounting plate 6113 with screws. The cylinder mounting plate 6124 is fixed to the second linear guide rail assembly 6123 with screws. The opening and closing transfer function of the component is realized by driving the second drive assembly 6121. The second drive assembly 6121 includes a servo motor and a reducer to drive the entire mechanism; the second driven wheel assembly 6122 includes a timing belt, a driven wheel, and other components; the second linear guide assembly 6123 includes a linear guide slider and a timing belt support plate, which clamps the belt surfaces on both sides to achieve the opening and closing centering movement function; the cylinder mounting plate 6124 is fixed to the slider of the second linear guide assembly 6123 with screws and is used to fix the two sliders and the gripper cylinder.

[0039] The second gripper mechanism 6130 consists of a fifth mounting plate 6131, a drive cylinder 6132, a connecting rod 6133, and a second bag gripper 6134. The fifth mounting plate 6131 is fixed to the cylinder mounting plate 6124 with screws. The two sets of second gripper mechanisms 6130 realize the centering opening and closing gripping function. The drive cylinder 6132 is fixed to the fifth mounting plate 6131 with a hinge. The connecting rod 6133 is used to connect the drive cylinder 6132 and the second bag gripper 6134 in the middle. The opening and closing function of the second bag gripper 6134 is realized by the extension and retraction of the cylinder. The fifth mounting plate 6131 is made of 6061 aluminum with a hard chrome plated surface and is fixedly connected by screws; the drive cylinder 6132 is a pen-type cylinder, and also includes a connecting seat, a solenoid valve and pneumatic accessories; the connecting rod 6133 is used to connect the drive cylinder 6132 and the second bag gripper 6134; the second bag gripper 6134 uses meshing teeth to realize the function of gripping the packaging bag.

[0040] The packaging bag vacuum heat-sealing mechanism 6200 consists of a fourth lifting mechanism 6210, a heat-sealing mechanism 6220, and a vacuuming mechanism 6230. The fourth lifting mechanism 6210 is fixed to the welding frame 1101 with screws. The heat-sealing mechanism 6220 and the vacuuming mechanism 6230 are fixed to the fourth lifting mechanism 6210 with screws. After the packaging bag is gripped by the second bag gripper 6134, it is driven by the second linear module 6111 assembly and transferred to the heat-sealing position. The vacuuming mechanism 6230 performs vacuuming inside the packaging bag, and finally the heat-sealing mechanism 6220 heat-seals the packaging bag, thus achieving the packaging function. Preferably, the fourth lifting mechanism 6210 consists of a fixed plate 6211, a lifting drive 6212, a pressing mounting plate 6213, and a pneumatic auxiliary material 6214. The fixed plate 6211 is the mounting plate of the entire mechanism and is fixed to the welding frame 1101 with screws. The downward mounting plate 6213 is fixed to the lifting drive 6212 with screws. The movement of the lifting drive 6212 enables the entire mechanism to rise and fall. The fixing plate 6211 is made of 6061 aluminum with a hard chrome plated surface and serves as the connecting load for the entire mechanism. The lifting drive 6212 consists of a thin lifting cylinder, connecting parts, linear bearings, and a floating joint. The movement of the cylinder enables the driving function of the entire structure. The downward mounting plate 6213 is connected to the floating joint of the lifting drive 6212 with screws and serves as the mounting plate for the heat sealing mechanism 6220.

[0041] The heat-sealing mechanism 6220 consists of a structural component 6221, a first pressure drive 6222, a second pressure drive 6223, and a heating device 6224. The structural component 6221, assembled from aluminum plates and screws, serves as the connecting body of the entire mechanism, connecting with the floating joint and linear bearing in the lifting drive 6212. The structural component 6221 is made of 6061 aluminum with a hard chrome plated surface, serving as the load-bearing body of the entire mechanism and connecting with the lifting drive 6212. The first pressure drive 6222 is composed of a three-axis cylinder, machined parts, and a linear bearing assembly. The extension and retraction of the three-axis cylinder achieves the function of sealing and pressing the packaging bag. The second pressure drive 6223 also consists of a three-axis cylinder, machined parts, and a linear bearing assembly, achieving the same function. Together with the first pressure drive 6222, they realize the heat-sealing opening and closing action. The heating device 6224 consists of a heating wire, a high-temperature resistant silicone strip, etc. It achieves the heat sealing function of the packaging bag by heating the instant heating wire.

[0042] The vacuuming mechanism 6230 comprises a structural body 6231, a lowering cylinder 6232, a mouth-supporting assembly 6233, and a vacuuming assembly 6234. The structural body 6231 is fixed to the structural component 6221 with screws. The lowering cylinder 6232 is fixed to the structural body 6231 with screws. The opening of the bag is opened by the action of the mouth-supporting assembly 6233. The vacuuming assembly 6234 initiates the vacuuming action, ultimately achieving vacuuming inside the packaging bag. The structural body 6231 is made of 6061 aluminum with a hard chrome plated surface, serving as a fixed support for the overall structure. The lowering cylinder 6232 consists of a sliding cylinder, a connecting plate, a solenoid valve, and other components. The extension and retraction of the piston rod of the sliding cylinder drives the vacuuming assembly 6234 to move in and out of the bag opening. The mouth-supporting assembly 6233 consists of a rotary cylinder, a connecting hinge, a linear guide rail, and other components. The rotation of the rotary cylinder drives the hinge to open and close the vacuum assembly 6234. The vacuum assembly 6234 consists of a vacuum tube, a vacuum flow valve, and a vacuum pump. After the vacuum tube enters the bag, the vacuum pump starts to begin vacuuming. The vacuum level is detected by the vacuum flow valve, ultimately achieving the vacuuming function.

[0043] In one example, refer to Figure 33 As shown, the finished product unloading conveyor section VII consists of an unloading tilting roller 7100 and an unloading conveyor belt 7200. Both parts are fixed to the welding frame 1101 with screws. After the packaging bag is heat-sealed, the grippers release the material, and the packaging bag falls onto the unloading tilting roller 7100. After being tilted by the unloading tilting roller 7100, the packaging bag falls onto the unloading conveyor belt 7200, ultimately realizing the finished product transfer and unloading function of the packaging bag. For details, refer to... Figure 34 and Figure 35As shown, the feeding and tilting roller 7100 consists of a roller body 7110 and a steering cylinder 7120. The roller body 7110 is composed of a non-powered roller. The steering cylinder 7120, through the steering of the cylinder, turns the packaging bag from a horizontal position to a downward 45-degree angle, realizing the function of feeding the packaging bag. The roller body 7110 consists of a non-powered roller and a mounting plate; the steering cylinder 7120 consists of a pen-shaped cylinder, a hinge, and a floating joint, etc. Through the action of the hinge, the cylinder extends and steers, ultimately realizing the tilting function. The feeding conveyor belt 7200 consists of a conveyor belt body 7210 and a third drive assembly 7220. The feeding conveyor belt 7200 is fixed to the welding frame 1101 by a support plate. The belt is driven by the third drive assembly 7220. The belt conveyor body 7210 is composed of aluminum profiles, aluminum plate processed parts, and anti-static belts; the third drive assembly 7220 is composed of a speed-regulating motor, synchronous pulleys, synchronous belts, and a speed-regulating box. The belt drives the transport function through the operation of the motor.

[0044] Secondly, this application also provides an integrated method for filling, heat-sealing, and vacuuming liquid packaging bags, which uses the integrated equipment for filling, heat-sealing, and vacuuming liquid packaging bags as described above, and includes the following steps:

[0045] The liquid packaging bags are organized and transported through the liquid packaging bag inlet conveyor section II;

[0046] The liquid packaging bag is picked up by the liquid packaging bag gripping section III and transferred to the bagging station;

[0047] Packaging bags are provided and positioned via the packaging bag feeding section IV;

[0048] The opening and opening of the bag are completed through the bag-opening and bag-holding section V of the packaging bag handover;

[0049] Place the liquid into the opened packaging bag;

[0050] Vacuum sealing and heat sealing section VI of the packaging bag is used to vacuum and heat seal the packaged bags after filling.

[0051] Finished products are output through the finished product unloading and conveying section VII.

[0052] The above method covers the complete process sequence from standardized material intake, automatic bag loading, precise bag opening, robotic bag filling, automatic vacuuming, to heat sealing and unloading. This method systematically solves all the drawbacks of manual operation in terms of efficiency, consistency, labor intensity, and product quality, achieving high-standard, high-efficiency continuous production. Preferably, the vacuuming and heat sealing processes are precisely controlled by a programmable control system to control the vacuum level, temperature, pressure, and time, ensuring that the vacuum level of each packaging bag meets the standard and that the heat seal is secure. By digitally and precisely controlling key process parameters such as vacuum level, temperature, pressure, and time through the programmable control system, the packaging quality of each product strictly meets preset standards, exhibiting extremely high repeatability and consistency. The product quality is stable and reliable, fully meeting the stringent packaging requirements of industries such as medical devices.

[0053] The technical solutions protected by this invention are not limited to the above embodiments. It should be noted that any combination of the technical solutions of any embodiment with one or more other embodiments is within the protection scope of this invention. Although the invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this invention are within the scope of protection claimed by this invention.

Claims

1. An integrated bagging, heat-sealing, and vacuuming device for liquid packaging bags, characterized in that, include: The machine frame and protective section (Ⅰ), the liquid packaging bag infeed conveying section (Ⅱ), the liquid packaging bag gripping section (Ⅲ), the packaging bag feeding section (Ⅳ), the packaging bag handover and support section (Ⅴ), the packaging bag vacuum heat sealing section (Ⅵ), and the finished product unloading conveying section (Ⅶ). The liquid packaging bag inlet conveying section (II) is used to organize and convey liquid packaging bags; The liquid packaging bag gripping part (Ⅲ) is used to grip liquid packaging bags and transfer them to the bagging station; The packaging bag feeding section (Ⅳ) is used to provide and position the packaging bags; The packaging bag handover and support section (V) is used to receive the packaging bag and complete the opening and support actions; The vacuum heat-sealing section (VI) of the packaging bag is used to vacuum and heat-seal the packaged bag after it has been filled. The finished product unloading and conveying section (VII) is used to output the finished product; The liquid packaging bag gripping part (Ⅲ) includes a robot base (3100), a robot (3200), and a liquid bag gripper (3300). The liquid bag gripper (3300) includes a robot flange (3310), a gripper body structure (3320), a first drive assembly (3330), and a liquid bag holding rod (3340). The liquid bag holding rod (3340) is a hollow structure that can be connected to an inert gas to inflate the opened packaging bag.

2. The integrated bagging, heat-sealing, and vacuuming equipment for liquid packaging bags according to claim 1, characterized in that, The liquid packaging bag infeed conveying section (II) includes: a stainless steel frame body (2100), a first driven wheel assembly (2200), a double-row synchronous belt (2300), a liquid packaging bag filling fixture (2400), and a drive wheel assembly (2500). The liquid packaging bag filling clamp (2400) includes a liquid packaging bag pad (2401), a liquid packaging bag retainer (2402), and a clamping and fixing component (2403) for fixing and straightening the liquid packaging bag.

3. The integrated bagging, heat-sealing, and vacuuming equipment for liquid packaging bags according to claim 1, characterized in that, The packaging bag feeding section (Ⅳ) includes a feeding hopper (4100), a packaging bag suction mechanism (4200), and a packaging bag clamping and transplanting mechanism (4300). The feeding hopper (4100) includes a hopper stop bar (4110), a bag pressure plate (4120), and a hopper support component (4130), and has an adjustable spacing function; The packaging bag suction mechanism (4200) includes a vacuum suction cup (4210), a support body (4220), and a first lifting mechanism (4230).

4. The integrated bagging, heat-sealing, and vacuuming equipment for liquid packaging bags according to claim 1, characterized in that, The packaging bag handover and support part (V) includes a second mechanism body (5100), a second lifting mechanism (5200), a packaging bag gripping and flipping mechanism (5300), a bag opening mechanism (5400), and a packaging bag opening mechanism (5500). The bag opening mechanism (5400) includes a third lifting mechanism (5410), an opening and closing mechanism (5420), and a bag suction cup (5430). The packaging bag opening mechanism (5500) includes a bag transfer gripper (5510), a lifting cylinder (5520), an opening and closing cylinder (5530), and a bag-supporting sheet metal (5540).

5. The integrated bagging, heat-sealing, and vacuuming equipment for liquid packaging bags according to claim 1, characterized in that, The vacuum heat-sealing part (VI) of the packaging bag includes a packaging bag transfer mechanism (6100) and a packaging bag vacuum heat-sealing mechanism (6200). The packaging bag transplanting mechanism (6100) includes a transplanting drive mechanism (6110), an opening and closing clamping mechanism (6120), and a second gripper mechanism (6130). The packaging bag vacuum heat sealing mechanism (6200) includes a fourth lifting mechanism (6210), a heat sealing mechanism (6220), and a vacuuming mechanism (6230).

6. The device according to claim 5, characterized in that, The heat sealing mechanism (6220) includes a structural component (6221), a pressure-repairing drive one (6222), a pressure-repairing drive two (6223), and a heating device (6224). The vacuum pumping mechanism (6230) includes a structural body (6231), a lowering cylinder (6232), a support assembly (6233), and a vacuum pumping assembly (6234).

7. The integrated bagging, heat-sealing, and vacuuming equipment for liquid packaging bags according to claim 1, characterized in that, The finished product unloading and conveying section (VII) includes an unloading tilting roller (7100) and an unloading belt (7200). The feeding and turning roller (7100) includes a roller body (7110) and a steering cylinder (7120) for turning the packaging bag over and dropping it onto the feeding conveyor belt (7200).

8. A method for integrating bagging, heat sealing, and vacuuming of liquid packaging bags, comprising the integrated bagging, heat sealing, and vacuuming equipment for liquid packaging bags as described in any one of claims 1 to 7, characterized in that, Includes the following steps: The liquid packaging bags are organized and transported through the liquid packaging bag inlet conveyor section (II); The liquid packaging bag is picked up by the liquid packaging bag gripping section (Ⅲ) and transferred to the bagging station; Packaging bags are provided and positioned via the packaging bag feeding section (Ⅳ); The opening and opening of the bag are completed through the bag-opening and bag-opening section (V) of the packaging bag; The liquid packaging bag is put into the opened packaging bag through the liquid packaging bag gripping part (Ⅲ); The vacuum heat-sealing section (VI) of the packaging bag is used to vacuum and heat-seal the bag after it has been filled. Finished products are output through the finished product unloading and conveying section (VII).

9. The method according to claim 8, characterized in that, The vacuuming and heat-sealing process is precisely controlled by a programmable control system to ensure that the vacuum level, temperature, pressure and time of each packaging bag meet the standards and that the heat seal is secure.

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