Material filling and packaging machine

Abstract

The invention relates to the technical field of packaging machine manufacturing, in particular to a material filling and packaging machine. The packaging bag opening mechanism is composed of a translation driving part, a longitudinal opening unit and a transverse opening unit. The translation driving part drives the transverse opening unit to go deep into or go out of the packaging bag. The longitudinal opening unit is provided with an upper adsorption assembly and a lower adsorption assembly, longitudinal opening is achieved by adsorbing the upper side edge and the lower side edge of a bag opening and moving the bag opening relative to each other, the transverse opening unit is provided with a front mechanical opening assembly and a rear mechanical opening assembly, and transverse opening is completed by adsorbing the front side edge and the rear side edge of the bag opening and moving the bag opening back to back. Through cooperation, the packaging bag forms a regular rectangular opening. And in cooperation with the sealing loading platform, the material filling mechanism and the heat sealing mechanism, heat sealing is automatically executed after the materials are filled in place and vacuumized. Therefore, the risk that the precision device is damaged in the packaging process is reduced, packaging bags of different sizes are adapted, and the production efficiency and the packaging quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging machinery manufacturing, in particular to a material filling and packaging machinery. Background Art

[0002] In the industrial packaging process of precision devices (such as glass substrates, liquid crystal panels, etc.), material filling is a core process, and its packaging quality directly determines the final quality and reliability of the product.

[0003] Existing material filling and packaging machinery typically includes functional modules such as material conveying, bag positioning, bag opening, material filling, vacuuming, and heat sealing. The bag opening directly impacts the smoothness and accuracy of material filling. As a precursor to material filling, the bag opening mechanism's structural design and performance are crucial. As far as the current industry status is concerned, the existing packaging bag opening mechanism generally has many technical difficulties, which seriously restricts the improvement of production efficiency and packaging effect: First, existing opening mechanisms often use simple clamping or single-direction expansion mechanisms, making it difficult to form a regular rectangular opening. For delicate components like glass substrates and LCD panels, whose surfaces are easily damaged, this irregular opening causes the material to frequently rub against the bag edge during filling, easily damaging and scratching the component surface, significantly increasing the defect rate. Second, existing opening mechanisms lack a multi-dimensional, coordinated drive design, making them poorly adaptable to bags of varying sizes and materials. For large bags, insufficient or uneven driving force often results in insufficient bag opening and misalignment. This can lead to material accumulation at the bag opening, preventing it from entering the bag, and directly impacting subsequent filling processes. Furthermore, for bags with unusual textures (such as ultra-thin, highly elastic, or brittle materials), improper opening force can easily cause the bag opening to tear, significantly increasing production costs. Third, existing opening mechanisms mostly operate independently, lacking linkage with the material loading and heat sealing mechanisms, making automated closed-loop operation impossible. This not only requires manual intervention to connect and adjust process steps, reducing production efficiency, but also risks introducing contamination such as dust and fingerprints. For precision device packaging requiring stringent cleanliness requirements, such contamination can directly lead to product rejection. The existence of the above problems makes it difficult for existing material filling and packaging machinery to meet the needs of efficient, accurate and clean packaging in the industrial production of precision devices. Therefore, technical personnel are urgently needed to develop a new type of material filling and packaging machinery that can solve the above defects. Summary of the Invention

[0004] The object of the present invention is to provide a material filling and packaging machine that can form regular openings, adapt to packaging bags made of materials of multiple sizes, and has good linkage with other mechanisms.

[0005] The present invention relates to a material filling and packaging machine, comprising: A loading platform, used for carrying materials; The packaging platform is used to position individual packaging bags and bagged materials; A material filling mechanism is used to push the material on the loading platform into the packaging bag positioned on the packaging platform; Packaging bag opening mechanism; The heat sealing mechanism is linked with the material filling mechanism and the packaging bag opening mechanism. When the material is filled into the packaging bag and passes through the vacuum device, the bag opening is heat-sealed. The packaging bag opening mechanism includes a translation drive unit, a longitudinal opening unit, and a transverse opening unit. Under the driving force of the translation drive unit, the transverse opening unit can penetrate into or out of the packaging bag. The longitudinal opening unit includes an upper adsorption component and a lower adsorption component; the transverse opening unit includes a front mechanical opening component and a rear mechanical opening component; When the bag opening action is executed, the upper adsorption component adsorbs the upper edge of the bag opening and moves upward, cooperating with the lower adsorption component to longitudinally open the bag opening; the front mechanical opening component and the rear mechanical opening component are used to adsorb the front and rear edges of the bag opening respectively, and move backwards to open the bag opening horizontally.

[0006] As a further improvement of the technical solution disclosed in the present invention, the longitudinal opening unit also includes a lifting drive device for driving the upper adsorption component to lift and lower in the up and down directions; the transverse opening unit also includes a second drive device for driving the front mechanical opening component and the rear mechanical opening component to translate backwards in the front and back directions.

[0007] As a further improvement of the technical solution disclosed in the present invention, the lifting drive device includes a linear motion element and a guide column and guide sleeve assembly; the linear motion element is used to drive the upper adsorption assembly to perform lifting and lowering movements in the up and down directions, and the guide column and guide sleeve assembly is used to provide guidance for the lifting and lowering movements of the upper adsorption assembly.

[0008] As a further improvement of the technical solution disclosed in the present invention, the second driving device is a forward and reverse screw module.

[0009] As a further improvement of the technical solution disclosed in the present invention, the forward and reverse screw module includes a stator, two movers and a slide rail; the two movers are rigidly connected to the front mechanical opening assembly and the rear mechanical opening assembly respectively, and perform back-to-back linear translation on the stator along the slide rail, and the motion accuracy error of the forward and reverse screw module does not exceed ±0.1mm.

[0010] As a further improvement of the technical solution disclosed in the present invention, the front mechanical opening assembly and the rear mechanical opening assembly have similar design structures; the front mechanical opening assembly includes a front mounting base plate, an upper front mechanical opening sub-assembly, a lower front mechanical opening sub-assembly and a front synchronous belt drive unit; the lower front mechanical opening sub-assembly is fixed to the front mounting base plate; the front synchronous belt drive unit is installed on the front mounting base plate, and drives the upper front mechanical opening sub-assembly to perform lifting and lowering movements.

[0011] As a further improvement of the technical solution disclosed in the present invention, the front synchronous belt drive unit includes a motor, an active synchronous pulley, a driven synchronous pulley, a synchronous belt and a guide rail slider mechanism; the motor drives the active synchronous pulley to rotate, the synchronous belt is sleeved on the active synchronous pulley and the driven synchronous pulley, the upper front mechanical opening sub-assembly is fixed on the synchronous belt, and is slidably connected to the front mounting base plate through the guide rail slider mechanism.

[0012] As a further improvement of the technical solution disclosed in the present invention, the vacuum extraction device includes a vacuum suction pipe, a vacuum pump and a vacuum sensor; the vacuum pump performs a vacuum operation on the inside of the packaging bag through the vacuum suction pipe, and the vacuum sensor is used to monitor the vacuum degree inside the packaging bag in real time, and when the vacuum degree reaches the range of -0.08MPa to -0.1MPa, the vacuum pump stops working.

[0013] In practical applications, the material filling and packaging machine disclosed in the present invention can achieve at least the following beneficial technical effects, specifically: 1) The innovatively designed bag opening mechanism allows the bag to form a regular rectangular opening, significantly reducing the risk of material damage due to accidental friction. The longitudinal opening unit and the transverse opening unit work in tandem, with the upper and lower adsorption components holding the bag opening open longitudinally, and the front and rear mechanical opening components holding the bag opening open transversely. The combination of the two forms a stable rectangular opening. For precision devices such as glass substrates and LCD panels, this can avoid irregular friction between the material and the bag edge during filling, reduce scratches and damage on the device surface, significantly reduce product defect rates, and ensure the final quality of the product. 2) The coordinated longitudinal and transverse opening method can provide sufficient opening range for packaging bags of different sizes, especially large ones, to avoid problems such as insufficient bag opening and position deviation, ensuring that materials can enter the bag smoothly and guaranteeing smooth subsequent filling processes. For packaging bags with special textures such as ultra-thin, highly elastic or brittle, precise control of the opening action can prevent bag tears, reduce waste and lower production costs. The precise movement of each opening component improves the stability and consistency of the opening, avoiding the displacement deviation caused by the low drive accuracy of existing mechanisms, providing reliable guarantees for the smoothness and accuracy of material filling, thereby improving the overall packaging quality. 3) The interconnected design of the heat-sealing mechanism, material loading mechanism, and bag opening mechanism achieves automated closed-loop operation. Once the material is loaded and vacuumed, the heat-sealing mechanism automatically performs the heat seal, eliminating the need for manual process connection and significantly improving production efficiency. It also reduces the risk of contamination from dust, fingerprints, and other issues associated with manual intervention, meeting the stringent cleanliness requirements of precision device packaging and ensuring product reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a three-dimensional schematic diagram of the material filling and packaging machine disclosed in the present invention.

[0016] Figure 2 It is a three-dimensional schematic diagram from one perspective of the material filling mechanism in the material filling and packaging machine disclosed in the present invention.

[0017] Figure 3 It is a three-dimensional schematic diagram of the material filling mechanism in the material filling and packaging machine disclosed in the present invention (with the frame and the material support and drag reduction plate hidden).

[0018] Figure 4 It is a three-dimensional schematic diagram from one perspective of the material pushing mechanism in the material filling and packaging machine disclosed in the present invention.

[0019] Figure 5 It is a three-dimensional schematic diagram from another perspective of the material pushing mechanism in the material filling and packaging machine disclosed in the present invention.

[0020] Figure 6 yes Figure 5 Front view of .

[0021] Figure 7 It is a three-dimensional schematic diagram of a material support drag reduction plate in the material filling and packaging machine disclosed in the present invention from one perspective (the packaging carrier and the translational motion freedom locking unit are both shown in the form of double-dotted lines).

[0022] Figure 8 yes Figure 7 A magnified view of the I part.

[0023] Figure 9 It is a three-dimensional schematic diagram from another perspective of the material supporting and drag reducing plate in the material filling and packaging machine disclosed in the present invention.

[0024] Figure 10It is a three-dimensional schematic diagram of the packaging bag opening mechanism in the material filling and packaging machine disclosed in the present invention (the heat sealing mechanism is shown in the form of double-dotted lines).

[0025] Figure 11 It is a three-dimensional schematic diagram of the longitudinal opening unit in the material filling and packaging machine disclosed in the present invention (with the lower adsorption component hidden).

[0026] Figure 12 It is a three-dimensional schematic diagram from one perspective of the front mechanical opening component in the material filling and packaging machine disclosed in the present invention.

[0027] Figure 13 It is a three-dimensional schematic diagram from another perspective of the front mechanical opening component in the material filling and packaging machine disclosed in the present invention.

[0028] Figure 14 It is a three-dimensional schematic diagram of the rear mechanical opening component in the material filling and packaging machine disclosed in the present invention.

[0029] 1-carrying platform; 2-packaging platform; 3-material loading mechanism; 31-frame; 32-pushing mechanism; 321-suspension frame; 3211-connecting beam; 3212-rear lower extension leg; 3213-front lower extension leg; 322-circumferential turning frame; 3221-workbench; 3222-rear slewing support; 3223-front slewing support; 3224-rotational freedom locking unit; 32241-polygonal limit plate; 32242-locking power element; 323-mechanical linkage assembly; 3 231-First linear motion element; 3232-First locking pin; 324-Range-extending thrust assembly; 3241-Second linear motion element; 3242-Secondary push plate assembly; 3243-Guide sleeve and guide rod assembly; 325-First power unit; 3251-Timing belt driven linear module; 3252-Slide rail and slider guide assembly; 326-Second power unit; 3261-Rotary cylinder; 327-Primary push plate assembly; 33-Supporting drag reducing plate; 331-First pin hole; 332-Second pin hole; 34- Translational motion freedom locking unit; 341- Third linear motion element; 342- Second locking pin; 4- Bag opening mechanism; 41- Translational drive unit; 411- Screw-driven linear module; 412- Slide rail guide assembly; 42- Longitudinal opening unit; 421- Upper adsorption assembly; 422- Lower adsorption assembly; 423- Lifting drive device; 4231- Cylinder; 4232- Guide column and guide sleeve assembly; 43- Horizontal opening unit; 431- Front mechanical opening assembly; 431 1-Front mounting base plate; 4312-Upper front mechanical opening sub-assembly; 4313-Lower front mechanical opening sub-assembly; 4314-Front synchronous belt drive unit; 43141-Front motor; 43142-Front active synchronous pulley; 43143-Front driven synchronous pulley; 43144-Front synchronous belt; 43145-Front guide rail slider mechanism; 432-Rear mechanical opening assembly; 433-Forward and reverse screw module; 5-Heat sealing mechanism; 6-Vacuum extraction device; 61-Vacuum suction tube. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to specific embodiments. Figure 1The figure shows a three-dimensional schematic diagram of the material filling and packaging machine disclosed in the present invention. It can be seen that it is mainly composed of several parts, such as a loading platform 1, a packaging loading platform 2, a material filling mechanism 3, a packaging bag opening mechanism 4, a heat sealing mechanism 5 and a vacuum device 6. Among them, each component cooperates with each other in actual work to form an efficient automated operation process. The loading platform 1 provides a stable supporting base for the material. Its design can ensure that the material maintains a stable position while waiting for filling, laying the foundation for subsequent accurate pushing. The packaging loading platform 2 is used to position a single packaging bag and the material in the bagged state. The material filling mechanism 3 is used to push the material on the loading platform 1 into the packaging bag positioned on the packaging loading platform 2. The packaging bag opening mechanism 4 is used to stably open the packaging bag opening into a regular rectangle. When the material is successfully filled into the packaging bag, the vacuum device 6 is quickly started to vacuum the inside of the packaging bag until the preset vacuum degree range is reached, preparing for the subsequent heat sealing operation. The heat sealing mechanism 5 is closely linked with the material filling mechanism 3 and the packaging bag opening mechanism 4. After the material is filled in place and the vacuum is completed, the heat sealing operation is immediately performed on the bag opening, thereby realizing automated closed-loop operation.

[0031] As can be seen from the above description, the bag opening mechanism 4 is the key to efficient filling, and the coordinated operation of its various components directly determines the effect of the bag opening. Figure 1 、 Figure 10 As shown in , the bag opening mechanism 4 is primarily composed of a translational drive unit 41, a longitudinal opening unit 42, and a transverse opening unit 43. The translational drive unit 41 (preferably a screw-driven linear module 411) provides precise displacement power for the entire mechanism. Under its action, the transverse opening unit 43 can smoothly and accurately penetrate into or exit the bag, laying the foundation for subsequent opening movements and ensuring that the relative position between the transverse opening unit 43 and the bag is always optimal. When the bag is opening, the upper suction component 421 forms a stable suction on the upper edge of the bag opening and then moves upward, while the lower suction component 422 effectively fixes the lower edge of the bag opening. The two apply forces in opposite directions, thereby fully expanding the bag opening in the longitudinal direction, facilitating the subsequent penetration of the transverse opening unit 43. The front mechanical opening component 431 and the rear mechanical opening component 432 also exhibit efficient synergy. They stably adsorb the front edge and the rear edge of the bag opening respectively, and then apply force to the bag opening in the lateral direction through the back translation movement to achieve lateral opening of the bag opening. In practical applications, the packaging bag opening mechanism 4 of the above-mentioned design concept exhibits significant technical advantages, specifically: From the perspective of precision material protection, its innovative design constructs a stable regular rectangular opening through the coordinated operation of the longitudinal opening unit 42 and the transverse opening unit 43. In the longitudinal direction, the reverse force of the upper adsorption component 421 and the lower adsorption component 422, combined with the back-to-back translation of the front mechanical opening component 431 and the rear mechanical opening component 432 in the transverse direction, forms a rectangular space with smooth edges and regular dimensions at the bag opening. In this way, the problem of irregular bag edges that may occur in traditional opening methods is completely changed. For precision devices such as glass substrates and liquid crystal panels whose surfaces are extremely easily damaged, it can fundamentally avoid accidental friction with the bag edge during the filling process. In the actual operation process, the material can enter the rectangular opening smoothly along the preset trajectory, effectively reducing surface scratches and micro-damage caused by friction, and significantly reducing product defective rates. In terms of adaptability and operational reliability, the longitudinal and transverse coordinated opening methods show good adaptability. For packaging bags of different sizes, especially large sizes, the two-way coordinated driving force can ensure that the bag opening has sufficient opening amplitude, avoiding the problem of insufficient local opening that may be caused by single-direction driving. At the same time, this coordinated mode can accurately control the force distribution during the opening process, effectively solving problems such as position offset, allowing materials to enter the bag without hindrance, and clearing obstacles for the smooth progress of subsequent filling processes. For packaging bags with special textures such as ultra-thin, highly elastic or brittle, the packaging bag opening mechanism 4 can adjust the force and movement rate according to the physical characteristics of the packaging bag through the precise movement control of each component. While achieving full opening, it fundamentally avoids the phenomenon of bag tearing and reduces the increase in production costs caused by material packaging failure. In addition, the translation drive unit 41 provides a precise displacement basis for the lateral opening unit 43, which effectively avoids the displacement deviation problem caused by insufficient driving accuracy of the existing mechanism, so that the amplitude and shape of each opening operation remain highly consistent, providing a reliable premise for the smoothness and accuracy of material filling, thereby promoting the improvement of the overall packaging quality and meeting the strict requirements of precision device packaging on stability and consistency.

[0032] like Figure 10As shown in , the longitudinal opening unit 42 is equipped with a lifting drive device 423 for driving the upper adsorption component 421 to move up and down in the vertical direction. In this way, the lifting action of the upper adsorption component 421 is more controllable, and the amplitude and speed of the lifting can be flexibly adjusted according to actual needs, so as to better cooperate with the lower adsorption component 422 to complete the longitudinal opening operation of the bag opening. At the same time, the transverse opening unit 43 is equipped with a forward and reverse screw module 433, whose function is to drive the front mechanical opening component 431 and the rear mechanical opening component 432 to move backward in the front and back directions. In actual application, the distance and speed of the backward translation of the front mechanical opening component 431 and the rear mechanical opening component 432 can be flexibly adjusted according to the transverse size characteristics of the packaging bag, thereby efficiently realizing the transverse opening of the bag opening. As a design preference, Figure 11 As shown in the figure, the lifting drive device 423 includes a cylinder 4231 and a guide post and guide sleeve assembly 4232. The cylinder 4231 provides the driving force for the lifting movement of the upper adsorption assembly 421, ensuring that the upper adsorption assembly 421 can be lifted and lowered as required; the guide post and guide sleeve assembly 4232 plays a guiding role in this process, ensuring that the lifting movement of the upper adsorption assembly 421 is smooth and precise, avoiding deviation or shaking, thereby further improving the stability and reliability of the longitudinal opening unit 42 in longitudinally opening the bag mouth, and forming a more efficient cooperation with the lower adsorption assembly 422.

[0033] As Figure 10 As shown in , the forward and reverse screw module 433 includes a stator, two movers, and a slide rail. The two movers are rigidly connected to the front mechanical opening assembly 431 and the rear mechanical opening assembly 432, respectively, and can perform back-to-back linear translation along the slide rail on the stator. The motion accuracy error of the forward and reverse screw module 433 is controlled within ±0.1mm. This provides precise and stable driving force and guidance for the lateral back-to-back movement of the front mechanical opening assembly 431 and the rear mechanical opening assembly 432, ensuring coordinated movement and precise displacement when the bag is laterally opened, further improving the operating reliability and opening accuracy of the lateral opening unit 43.

[0034] like Figure 12 、 Figure 13 As shown in the figure, the front mechanical opening assembly 431 mainly consists of a front mounting base plate 4311, an upper front mechanical opening subassembly 4312, a lower front mechanical opening subassembly 4313, and a front synchronous belt drive unit 4314. The lower front mechanical opening subassembly 4313 is fixed to the front mounting base plate 4311, while the front synchronous belt drive unit 4314 is assembled on the front mounting base plate 4311 and can drive the upper front mechanical opening subassembly 4312 to complete the lifting action. Through the coordinated cooperation of these components, the corresponding edge of the bag opening can be accurately adsorbed and opened.

[0035] As a further refinement of the above technical solution, Figure 12 As shown in the figure, the front synchronous belt drive unit 4314 includes a motor 43141, a driving synchronous pulley 43142, a driven synchronous pulley 43143, a synchronous belt 43144, and a guide rail slider mechanism 43145. During operation, the motor 43141 drives the driving synchronous pulley 43142 to rotate. The synchronous belt 43144 is inserted between the driving synchronous pulley 43142 and the driven synchronous pulley 43143 to transmit power. The upper front mechanical opening subassembly 4312 is fixed to the synchronous belt 43144. Driven by the synchronous belt 43144, it forms a sliding connection with the front mounting base plate 4311 via the guide rail slider mechanism 43145, thereby completing the lifting and lowering motion, ensuring precise and controllable suction and opening of the bag edge.

[0036] like Figure 14 As shown in , the rear mechanical opening assembly 432 is consistent with the front mechanical opening assembly 431 in design structure and operation mode. Due to space considerations, its specific structure and operation process will not be repeated here.

[0037] like Figure 1 As shown in the figure, the vacuum device 6 is composed of a vacuum pipe 61, a vacuum pump, and a vacuum sensor. The three work together to complete the vacuum operation of the packaging bag. Among them, the vacuum pump serves as a power source, connecting with the interior of the packaging bag through the vacuum pipe 61, continuously extracting air from the bag to achieve a vacuum environment; the vacuum sensor monitors the vacuum state inside the packaging bag in real time and accurately captures changes in the vacuum level. When the sensor detects that the vacuum level inside the bag reaches a preset range of -0.08MPa to -0.1MPa, it triggers a control signal to stop the vacuum pump, thereby ensuring that the appropriate vacuum level is maintained inside the packaging bag. In this way, it can avoid sealing failure caused by insufficient vacuum level and prevent excessive vacuum from damaging the packaging bag or the internal materials, providing a stable vacuum foundation for the subsequent heat sealing process, further ensuring the consistency and reliability of the packaging quality.

[0038] It is known that the material filling mechanism 3 undertakes the core task of material transfer. It can push the material on the loading platform 1 into the packaging bag on the packaging platform 1 smoothly and accurately according to the preset trajectory and force, ensuring that the material enters the bag smoothly.

[0039] like Figure 2As shown, the material loading mechanism 3 is mainly composed of several parts such as a frame 31, a pushing mechanism 32 and a supporting drag reducing plate 33. Among them, the pushing mechanism 32 is supported by the frame 31 and has two flexibly switchable working modes to adapt to the operation requirements of different stages. The supporting drag reducing plate 33 is arranged directly below the frame 31. Its surface is treated with Teflon coating or mirror polishing, which greatly reduces the friction when the material slides. When subjected to side thrust, it can form a close fit with the pushing mechanism 32 through lateral translation. In the material transfer stage, the supporting drag reducing plate 33 first penetrates into the packaging bag, and its free end rests on the packaging carrier 2 to form a stable support transition; in the filling stage, it supports and guides the material like an "invisible guide rail".

[0040] Form 1: Mechanical linkage mode The pusher mechanism 32 and the support drag reduction plate 33 are linked by a rigid connector. The power of the pusher mechanism 32 is directly converted into lateral translational force for the support drag reduction plate 33. This design allows for precise control of the motion trajectory of the support drag reduction plate 33. During the boring process of penetrating the packaging bag, the material can be pushed strictly along the preset path to avoid friction with the inner wall of the packaging bag and damage to the material. During the reset phase, once the material is completely loaded into the packaging bag and has been actively disengaged from the support drag reduction plate 33, the pusher mechanism 32 drives the support drag reduction plate 33 to reset along the original path, ensuring smooth removal from the packaging bag and preparation for the next operation. Form 2: Independent push mode After the pushing mechanism 32 releases the mechanical linkage with the material supporting drag reducing plate 33, the pushing mechanism 32 can independently apply lateral thrust to the material until the material is transferred from the loading platform 1 to the material supporting drag reducing plate 33. When the material initially enters the packaging bag and the pushing mechanism 32 critically touches the packaging bag, the pushing mechanism 32 changes its posture to continue to apply lateral thrust to the material, so that the material can continue to penetrate into the packaging bag, ensuring the integrity of the material filling. In this process, the pushing mechanism 32 synchronously penetrates through the bag opening.

[0041] The material filling steps are as follows: S1. Initial preparation stage: The loading platform 1 is moved to the loading position. The operator places the material to be filled in the positioning area of ​​the loading platform 1. The infrared sensor of the loading platform 1 immediately detects the material position and sends a signal after confirming the correct placement. At the same time, the packaging bag opening mechanism 4 is activated, opening the bag to a size that is compatible with the maximum cross-section of the material, preparing for subsequent filling. S2. Inserting the material-supporting drag-reducing plate 33 into the bag: The pushing mechanism 32 is in working mode 1 and is mechanically linked with the material-supporting drag-reducing plate 33. The pushing mechanism 32 drives the material-supporting drag-reducing plate 33 to perform a lateral translation motion, so that the material-supporting drag-reducing plate 33 slowly penetrates into the packaging bag until it reaches the appropriate position. S3. Transferring the material to the support and drag reduction plate 33: The pusher mechanism 32 switches to operating mode 2, releasing its mechanical linkage with the support and drag reduction plate 33 and returning to its initial position. Once the platform 1 has moved horizontally to align with the support and drag reduction plate 33, the pusher mechanism 32 applies a lateral thrust to the material, pushing it from the platform 1 onto the support and drag reduction plate 33 and allowing it to initially enter the packaging bag. S4. Material goes deeper into the bag: The pushing mechanism 32 continues to apply force to push the material deeper into the bag. When the pushing mechanism 32 critically touches the bag, the pushing mechanism 32 changes its working posture and simultaneously goes deeper through the bag opening, continuing to push the material to the appropriate position in the bag. S5. Reset the material-supporting drag-reducing plate 33: After the material is loaded into the packaging bag and is actively separated from the material-supporting drag-reducing plate 33, the pushing mechanism 32 switches to working mode 1 again, and mechanically links with the material-supporting drag-reducing plate 33 to drive the material-supporting drag-reducing plate 33 to perform a lateral translation reset movement, so that the material-supporting drag-reducing plate 33 is removed from the packaging bag, completing a material filling process.

[0042] The unique dual-working design of the pusher mechanism 32 significantly improves the refinement of material loading operations by separating the functions of "driving the material support and drag reduction plate 33" and "pushing the material": Working mode 1: The pushing mechanism 32 and the supporting drag reducing plate 33 form a rigid linkage to accurately send the supporting drag reducing plate 33 to the designated position in the packaging bag, providing a stable and reliable support for the material. Alternatively, the supporting drag reducing plate 33 is dragged from the working position to the initial position to pave the way for subsequent vacuum packaging operations. Working mode 2: When the material support and drag reduction plate 33 is in place, the pushing mechanism 32 immediately releases the linkage relationship with the material support and drag reduction plate 33 and focuses on the precise pushing of the material. Through a single pushing action, the material is transferred from the loading platform 1 to the material support and drag reduction plate 33, and then a secondary extended-range pushing action is used to fill the material into place, completely eliminating the problem of material not being filled into place, creating ideal conditions for subsequent vacuum packaging; Furthermore, in this technical solution, a material support and drag reduction plate 33 is introduced to create a physical barrier between the material and the packaging bag. Throughout the filling process, the material relies on the supporting surface of the material support and drag reduction plate 33 to complete the transfer and push until it reaches the desired position in the packaging bag, completely preventing the material from being abraded by direct contact with the inner wall of the packaging bag.

[0043] It's also worth noting that the drag-reducing plate 33 works in conjunction with the dual-mode pushing mechanism 32, and in real-time with the loading platform 1 and the bag opening mechanism 4, to create a closed-loop automated packaging system. Throughout the material filling process, the drag-reducing plate 33 prevents direct contact between the material and the bag, effectively preventing bag tearing or displacement due to excessive force.

[0044] like Figures 3-5 As shown in the figure, the pusher mechanism 32 primarily consists of a suspension frame 321, a circumferential tilting frame 322, a mechanical linkage assembly 323, an extended-range thrust assembly 324, a first power unit 325, and a second power unit 326. The suspension frame 321 is a π-shaped structure, constructed by welding a connecting beam 3211, a rear lower extension leg 3212, and a front lower extension leg 3213. The connecting beam 3211 serves as the foundational support component of the pusher mechanism 32 and rests on the frame 31. When driven by the first power unit 325, the suspension frame 321 performs smooth translational motion in the lateral direction (i.e., the direction in which the material is pushed), providing basic support for the position adjustment of the entire pusher mechanism 32. The circumferential tilting frame 322, supported by the rear lower extension leg 3212 and the front lower extension leg 3213, bears the dual load of the mechanical linkage assembly 323 and the extended-range thrust assembly 324. Under the action of the rotational torque output by the second power unit 326, the circumferential flip frame 322 can perform a circumferential flip motion, which is the key to switching between working mode one and working mode two and changing the working posture of the pushing mechanism 32. The mechanical linkage assembly 323 is used to form a stable mechanical connection with the material support drag reduction plate 33. When it is necessary to drive the material support drag reduction plate 33 to move, the mechanical linkage assembly 323 is precisely docked and locked with the material support drag reduction plate 33 to ensure the rigidity of power transmission; when the form is switched, the mechanical linkage assembly 323 is disconnected from the material support drag reduction plate 33 without affecting the subsequent pushing action. The extended-range side thrust assembly 324 plays a pushing role in working mode two, and can apply side thrust to the material to ensure that the material can be pushed to the appropriate position in the packaging bag.

[0045] Working mode 1: Mechanical linkage mode When it is necessary to drive the support drag reducing plate 33 to move, the pushing mechanism 32 switches to this mode: The second power unit 326 drives the circumferential turning frame 322 to turn to the initial angle, and the mechanical linkage assembly 323 is aligned with the docking position of the support drag reduction plate 33, and the mechanical connection is completed; The first power unit 325 is started to drive the suspension frame 321 to move horizontally, and the circumferential turning frame 322 moves synchronously. The power is transmitted to the material support drag reduction plate 33 through the mechanical linkage component 323, causing it to make the same lateral displacement as the suspension frame 321, thereby achieving the bagging or resetting of the material support drag reduction plate 33. Working mode 2: Independent push mode When it is necessary to push the material, the pushing mechanism 32 switches to this mode: The mechanical linkage assembly 323 releases the mechanical connection with the support drag reduction plate 33; The second power unit 326 drives the circumferential turning frame 322 to turn over, so that the extended-range thrust assembly 324 is adjusted to a lateral posture and aligned with the material on the material support and drag reduction plate 33; The first power unit 325 drives the suspension frame 321 forward, and the range-extending side thrust assembly 324 moves synchronously, exerting a side thrust on the material, completing the transfer of the material from the loading platform 1 to the material support drag reduction plate 33; When the pushing mechanism 32 critically touches the packaging bag, the extended-range side-pushing assembly 324 continues to function to push the material to a suitable position in the packaging bag.

[0046] As one of the preferred designs, Figure 5 As shown in the figure, the circumferential turning frame 322 includes a workbench 3221, a rear slewing support 3222 and a front slewing support 3223. Among them, the workbench 3221 serves as the core bearing component, providing a stable installation basis for the mechanical linkage assembly 323 and the extended-range thrust assembly 324. The rear slewing support 3222 and the front slewing support 3223 jointly serve as the support and rotation mechanism of the workbench 3221, and the two are respectively installed on the rear lower extension leg 3212 and the front lower extension leg 3213. By adopting the above technical solution, the smoothness and accuracy of the circumferential turning movement are ensured, and a solid mechanical foundation is provided for the reliable switching of the two working modes.

[0047] In terms of power transmission, the second power unit 326 offers flexible options for installation and driving. The second power unit 326 is mounted and fixed to the rear lower leg 3212 of the suspension frame 321. Its output shaft is connected to the rotating component of the rear slewing support 3222. By driving the rear slewing support 3222 to rotate, it drives the workbench 3221 to perform circumferential flipping motion. Alternatively, the second power unit 326 can be mounted and fixed to the front lower leg 3213, similarly connecting to the rotating component of the front slewing support 3222 to achieve power transmission, driving the workbench 3221 to flip.

[0048] Depend on Figure 5 、 Figure 6 As can be clearly seen in the figure, based on the above structure, the circumferential turning frame 322 is further equipped with a rotational degree of freedom locking unit 3224. When the workbench 3221 is turned to the desired angle (such as the initial angle required for working mode one or the lateral pushing angle required for working mode two) under the drive of the second power unit 326, the rotational degree of freedom locking unit 3224 will immediately take effect, firmly locking the circumferential rotational degree of freedom of the workbench 3221 through a mechanical limit or braking structure, preventing angular displacement due to force or vibration during subsequent operations, and ensuring that the mechanical linkage assembly 323 or the extended-range thrust assembly 324 always occupies the correct working position. As a preferred design, the rotational freedom locking unit 3224 includes a polygonal limit plate 32241 and a locking power element 32242. The polygonal limit plate 32241 is coaxially mounted with the rear slewing support 3222 or the front slewing support 3223, meaning it rotates synchronously with the rotation of the workbench 3221, thereby forming a dynamic limit reference. The outer contour of the polygonal limit plate 32241 is polygonal (e.g., a regular hexagon, a regular octagon, etc.), with each side or corner corresponding to a predetermined tilt angle of the workbench 3221, providing a clear positioning basis for precise locking. The position of the locking power element 32242 corresponds to that of the polygonal limit plate 32241. When the workbench 3221 tilts to the predetermined angle, the control system triggers the action of the locking power element 32242, causing its output end to apply a lateral locking force toward the outer contour of the polygonal limit plate 32241. For example, when one edge of the polygonal limiting plate 32241 rotates to align with the locking power element 32242, the output end of the locking power element 32242 extends and tightly abuts against the edge, leveraging the rigidity of the polygonal structure to prevent the polygonal limiting plate 32241 from further rotation, thereby locking the circumferential rotational freedom of the workbench 3221. When the lock needs to be released to allow the workbench 3221 to be flipped again, the locking power element 32242 retracts its output end, releasing the lateral locking force on the polygonal limiting plate 32241, allowing the workbench 3221 to rotate freely under the drive of the second power unit 326. As Figure 3 As shown in the figure, the first power unit 325 preferably comprises a synchronous belt-driven linear module 3251 and a slide rail and slider guide assembly 3252, providing power and guidance for the lateral translation of the suspension frame 321. The synchronous belt-driven linear module 3251 integrates a drive motor and transmission structure, converting rotational motion into linear motion. This allows precise control of the translational speed and displacement of the suspension frame 321 to meet the power requirements of both operating modes. In the slide rail and slider guide assembly 3252, the slide rail is fixed to the frame 31, and the slider is connected to the suspension frame 321, constraining its motion trajectory and preventing deviation. As Figures 3-5As shown in , the second power unit 326 is preferably a rotary cylinder 3261, which provides accurate and efficient power support for the circumferential flipping movement of the circumferential flipping frame 322. The rotary cylinder 3261 can be optionally installed on the rear lower extension leg 3212 and the front lower extension leg 3213, which will not take up too much space and adapt to the layout requirements of the circumferential flipping frame 322. When the working form is switched, the rotary cylinder 3261 drives the circumferential flipping frame 322 to flip quickly to the target angle, and cooperates with the rotational freedom locking unit 3224 to ensure the stability of the posture after switching. Whether it is switching from working form one to working form two, or vice versa, the rotary cylinder 3261 can respond quickly to ensure seamless connection between the two working forms and improve the overall operating efficiency of the pushing mechanism 32. like Figure 4 As shown in the figure, the pusher mechanism 32 is further equipped with a primary pusher plate assembly 327. This assembly spans both the rear lower extension leg 3212 and the front lower extension leg 3213 and is removably secured to form a single unit. Once the material has been completely transferred from the loading platform 1 to the drag-reducing plate 33, the primary pusher plate assembly 327 directly applies lateral thrust to the material, assisting its initial entry into the packaging bag. This paves the way for the subsequent deeper push by the extended-range side thruster assembly 324, further enhancing the consistency and stability of material loading.

[0049] like Figure 7 、 Figure 9 As shown in FIG, a first pin hole 331 is formed on the support drag reducing plate 33 at a distance L1 from the left end thereof, providing a precise positioning reference for the mechanical connection between the mechanical linkage assembly 323 and the support drag reducing plate 33. Figure 3 、 Figure 5 、 Figure 6 As shown in , the mechanical linkage assembly 323 includes a first linear motion element 3231 and a first locking pin 3232, wherein the first linear motion element 3231 is installed on the workbench 3221. When the pusher mechanism 32 needs to enter working mode one, the first linear motion element 3231 drives the first locking pin 3232 to penetrate into the first pin hole of the material support and drag reduction plate 33. At this time, the pusher mechanism 32 and the material support and drag reduction plate 33 form a stable mechanical linkage relationship, ensuring that when the first power unit 325 is working, the material support and drag reduction plate 33 can follow the suspension frame 321 to synchronously perform lateral translation movement, accurately completing the bag entry or reset action. When it is necessary to switch to working mode two, the first linear motion element 3231 works in the reverse direction, driving the first locking pin 3232 out of the first pin hole 331, and the mechanical linkage relationship between the pusher mechanism 32 and the material support and drag reduction plate 33 is released. At this time, the pushing mechanism 32 can focus on the pushing operation of the material through the cooperation of the single pushing plate assembly 327 and the extended-range side pushing assembly 324, ensuring that after the material is transferred from the loading platform 1 to the material support and drag reduction plate 33, it can smoothly enter the packaging bag and finally complete the full filling.

[0050] like Figures 3 to 6 As shown in , the extended-range side thrust assembly 324 includes a second linear motion element 3241, a secondary push plate assembly 3242, and a guide sleeve guide rod assembly 3243. The three form a stable pushing system, providing accurate and reliable power and guide support for the continued in-depth pushing of materials. The second linear motion element 3241 is installed on the workbench 3221. Its stroke can be flexibly adjusted according to the depth of the packaging bag to meet the filling requirements of materials of different specifications. The secondary push plate assembly 3242 is a component that directly acts on the material and ensures uniform force during pushing. The guide sleeve guide rod assembly 3243 consists of a guide sleeve and a guide rod. The guide sleeve is fixed to the workbench 3221. One end of the guide rod is connected to the secondary push plate assembly 3242, and the other end is passed through the guide sleeve to form a rigid guide structure. Once the extended-range thrust assembly 324, driven by the circumferential tilting frame 322, flips to a horizontal position, the second linear motion element 3241 immediately activates, driving the secondary pusher plate assembly 3242 toward the material. Simultaneously, the guide sleeve and guide rod assembly 3243 operate, sliding axially along the guide sleeve to strictly constrain the motion of the secondary pusher plate assembly 3242, preventing it from swaying up and down or side to side during the pushing process. This coordinated action allows the secondary pusher plate assembly 3242 to smoothly approach the material and exert a continuous lateral thrust. like Figure 7 、 Figure 8 As shown in , the material loading mechanism 3 is further provided with a translational motion freedom locking unit 34. After the material support and drag reduction plate 33 reaches the desired position within the packaging bag, the translational motion freedom locking unit 34 acts to lock the lateral displacement freedom of the material support and drag reduction plate 33 through a mechanical limiter or brake structure. This means that during the subsequent material pushing process, the material support and drag reduction plate 33 will not be accidentally displaced due to the reaction force of the material or equipment vibration, and will always remain in the preset support position.

[0051] like Figure 7 、 Figure 9As shown in , a second pin hole 332 is formed on the material support and drag reduction plate 33 at a set distance L2 near its left end face, which provides a positioning reference for the precise locking of the translational motion freedom locking unit 34. The translational motion freedom locking unit 34 includes a third linear motion element 341 and a second locking pin 342. The third linear motion element 341 is arranged directly below the material support and drag reduction plate 33 to ensure that the movement of the second locking pin 342 is precisely controllable. When the material support and drag reduction plate 33 penetrates into the expected position in the packaging bag, the third linear motion element 341 drives the second locking pin 342 to move upward, so that it precisely penetrates into the second pin hole 332. At this time, the lateral translational freedom of the material support and drag reduction plate 33 is firmly restricted, and no accidental displacement can occur. When the material is loaded and separated from the material supporting and drag reducing plate 33, the third linear motion element 341 drives the second locking pin 342 to move downward, so that it disengages from the second pin hole 332. The lateral translation freedom restriction of the material supporting and drag reducing plate 33 is then released, and it can be smoothly reset under the drive of the pushing mechanism 32, preparing for the next loading operation.

[0052] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A material filling and packaging machine, comprising: A loading platform, used for carrying materials; The packaging platform is used to position individual packaging bags and bagged materials; A material filling mechanism, used for pushing the material on the loading platform into the packaging bag positioned on the packaging platform; Packaging bag opening mechanism; A heat-sealing mechanism, which is linked to the material filling mechanism and the packaging bag opening mechanism, performs a heat-sealing operation on the bag opening when the material is filled into the packaging bag and passes through the vacuum device; The packaging bag opening mechanism comprises a translation drive unit, a longitudinal opening unit and a transverse opening unit; under the driving force of the translation drive unit, the transverse opening unit can penetrate into / escape from the packaging bag; The longitudinal opening unit includes an upper adsorption component and a lower adsorption component; the transverse opening unit includes a front mechanical opening component and a rear mechanical opening component; When the packaging bag is opened, the upper adsorption component adsorbs the upper edge of the bag opening and moves upward, cooperating with the lower adsorption component to longitudinally open the bag opening; the front mechanical opening component and the rear mechanical opening component are used to adsorb the front and rear edges of the bag opening respectively, and move backwards to open the bag opening laterally.

2. The material filling and packaging machine according to claim 1, characterized in that: The longitudinal opening unit also includes a lifting drive device for driving the upper adsorption component to move up and down in the up and down directions; the transverse opening unit also includes a second drive device for driving the front mechanical opening component and the rear mechanical opening component to move backward and forward in the forward and backward directions.

3. The material filling and packaging machine according to claim 2, characterized in that: The lifting drive device includes a linear motion element and a guide column and guide sleeve assembly; the linear motion element is used to drive the upper adsorption assembly to perform lifting motion in the up and down directions, and the guide column and guide sleeve assembly is used to provide guidance for the lifting motion of the upper adsorption assembly.

4. The material filling and packaging machine according to claim 2, characterized in that: The second driving device is a forward and reverse screw module.

5. The material filling and packaging machine according to claim 4, characterized in that: The forward and reverse screw module includes a stator, two movers and a slide rail; the two movers are rigidly connected to the front mechanical opening assembly and the rear mechanical opening assembly respectively, and perform back-to-back linear translation on the stator along the slide rail, and the motion accuracy error of the forward and reverse screw module does not exceed ±0.1mm.

6. The material filling and packaging machine according to claim 1, characterized in that: The front mechanical opening component and the rear mechanical opening component have similar design structures; the front mechanical opening component includes a front mounting base plate, an upper front mechanical opening sub-assembly, a lower front mechanical opening sub-assembly and a front synchronous belt drive unit; the lower front mechanical opening sub-assembly is fixed to the front mounting base plate; the front synchronous belt drive unit is installed on the front mounting base plate and drives the upper front mechanical opening sub-assembly to perform lifting and lowering movements.

7. The material filling and packaging machine according to claim 6, characterized in that: The front synchronous belt drive unit includes a motor, an active synchronous pulley, a driven synchronous pulley, a synchronous belt and a guide rail slider mechanism; the motor drives the active synchronous pulley to rotate, the synchronous belt is sleeved on the active synchronous pulley and the driven synchronous pulley, the upper front mechanical opening subassembly is fixed on the synchronous belt, and is slidably connected to the front mounting base plate through the guide rail slider mechanism.

8. The material filling and packaging machine according to claim 1, characterized in that: The vacuum pumping device includes a vacuum pipe, a vacuum pump and a vacuum sensor; the vacuum pump performs a vacuum operation on the inside of the packaging bag through the vacuum pipe, and the vacuum sensor is used to monitor the vacuum level inside the packaging bag in real time, and when the vacuum level reaches the range of -0.08MPa to -0.1MPa, the vacuum pump stops working.

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