High-stability full-chain net protection liquid filling machine

Abstract

The application relates to a high-stability full-chain net-protecting liquid filling machine and relates to the technical field of packaging machines. The high-stability full-chain net-protecting liquid filling machine comprises a rack, a ring-shaped conveying line, a bottle sorting and distributing assembly, an air washing assembly, a moving and loading assembly, a liquid adding assembly, a film placing and heat sealing assembly and a cap sorting and rolling assembly. The air washing assembly is arranged at the output end of the bottle sorting and distributing assembly and comprises a turnover roller. A plurality of insertion holes for docking and accommodating bottle mouths are formed in the outer peripheral wall of the turnover roller. A suction air channel communicated with the bottom of each insertion hole is arranged in the turnover roller in the axial direction. An air needle is arranged in the suction air channel corresponding to each insertion hole. An air nozzle suction head is arranged on the inner wall of the insertion hole. The turnover roller is matched with the air needle to blow and suck through negative pressure, so that impurities in the bottle body are effectively removed. Meanwhile, the whole machine is combined with an anti-interference structure design and a folding type space layout, interference between processes is reduced, and the equipment integration and operation stability are improved.

Description

Technical Field

[0001] This application relates to the field of packaging machinery automation technology, and in particular to a highly stable, end-to-end clean liquid filling machine. Background Technology

[0002] In liquid packaging production in industries such as daily chemicals, pharmaceuticals, and food, bottles typically undergo multiple processes including bottle handling, washing, filling, sealing, and capping. With increasing market demands for production capacity, fully automated liquid filling lines with multiple parallel workstations have become widely used. However, existing fully automated liquid filling equipment has the following limitations under actual long-term, high-frequency operation: First, packaging bottles are prone to generating static electricity and attracting dust in the workshop during circulation and friction. Existing conventional bottle washing facilities often cannot completely remove stubborn impurities that are attached deep to the bottle wall, which poses certain hygiene risks.

[0003] Secondly, in the high-speed sealing process, the placement of the film and the hot pressing action are prone to slight positional deviations; and when the heat sealing components are operating continuously, the high temperature emitted by them can easily have a heat radiation effect on the surrounding packaging materials to be processed, resulting in packaging material deformation or unstable sealing yield.

[0004] Finally, multi-head filling equipment has numerous internal actuators and liquid supply pipelines, which are prone to pipeline interference or wear during frequent lifting and moving operations. At the same time, in order to achieve the connection of multiple complex processes, existing production lines mostly adopt long straight lines or multiple splicing layouts, which not only result in a large overall equipment footprint, but also make the material transfer and connection between each station more cumbersome, making it difficult to meet the production requirements of high integration and high stability. Summary of the Invention

[0005] In view of the above problems, this application provides a highly stable full-chain clean liquid filling machine. By setting a rotating roller with embedded air needles and suction channels, the machine combines blowing and suction during the bottle rotation process, effectively removing static electricity and stubborn impurities from the bottle and improving the hygienic quality of the packaging.

[0006] The high-stability end-to-end clean liquid filling machine provided in this application includes: Bottle distribution component, used to distribute input bottles to multiple parallel output tracks; The air washing assembly is located at the output end of the bottle dispensing assembly; A frame on which a circular conveyor line is provided, the circular conveyor line being configured with accompanying mold positions arranged along the conveying direction; A transfer assembly is disposed between the air washing assembly and the annular conveyor line, and is used to transfer the air-washed bottle from the air washing assembly to the accompanying mold position. A liquid filling assembly, located above the annular conveyor line, is used to inject liquid into the bottle. The membrane placement and heat sealing assembly is located downstream of the liquid addition assembly along the conveying direction of the annular conveyor line, and is used to place the membrane at the bottle opening after liquid addition and perform heat sealing. The capping and crimping assembly is located at a station downstream of the film-laying and heat-sealing assembly, and is used to cap and crimp the sealed bottle. The air washing assembly includes a rotating drum. The outer peripheral wall of the rotating drum has multiple insertion holes for docking and accommodating bottle mouths. The multiple insertion holes are arranged one-to-one with the multiple output tracks. The rotating drum has a suction air passage along the axial direction that communicates with the bottom of each insertion hole. An air needle is provided in the suction air passage corresponding to each insertion hole. An air nozzle is provided on the inner wall of each insertion hole.

[0007] Preferably, the air nozzle is connected to the first negative pressure source, the exhaust end of the suction channel is connected to the second negative pressure source, and the air inlet end of the air needle is connected to the ion wind generator; the air needle extends at least partially into the insertion hole and is arranged coaxially with the insertion hole; one end of the rotating roller is connected to a rotation drive mechanism that drives it to rotate around its own axis.

[0008] Preferably, the air scrubbing assembly is configured as follows: When the bottle is in the initial receiving state and the bottle mouth is inserted into the insertion hole and connected to the suction channel, the air nozzle head adsorbs and fixes the bottle; The rotation drive mechanism drives the tilting roller to tilt from the initial receiving state to the impurity discharge state with the bottle mouth facing down. During the tilting stroke, the air needle sprays ion wind into the bottle body. When the rotating drum rotates to the impurity discharge state, the air needle stops spraying ion air, and the suction air passage opens for negative pressure suction. After the suction is completed, the rotating roller rotates back to the initial receiving state so that the bottle can be ejected.

[0009] Preferably, the bottle distribution assembly includes an empty bottle elevator, a conveyor belt, multiple branching bars, and a translation drive mechanism. The multiple parallel output tracks are arranged side-by-side downstream of the output end of the conveyor belt. The empty bottle elevator is located at the feed end of the conveyor belt and is used to feed bottles onto the conveyor belt. The multiple branching bars are arranged in pairs above the conveyor belt and cooperate with the conveyor belt to form a predetermined conveying channel. The translation drive mechanism is driven by the branching bars and is configured to drive the branching bars forming the conveying channel to move laterally synchronously to switch the output end position of the conveying channel, so that the conveying channel selectively connects with multiple output tracks.

[0010] Preferably, the liquid filling assembly includes a lifting drive mechanism, a lifting plate, multiple filling needles, and multiple liquid filling hoses; the lifting plate is disposed above the annular conveyor line; the lifting drive mechanism is disposed on the frame and is connected to the lifting plate for driving the lifting plate to rise and fall; the multiple filling needles are mounted on the lifting plate, and the arrangement spacing of the multiple filling needles is adapted to the arrangement spacing of the accompanying mold positions; the multiple liquid filling hoses are arranged one-to-one with the multiple filling needles, and the first end of each liquid filling hose is connected to the corresponding filling needle, and the second end extends downward and is fixed to the part of the frame located below the annular conveyor line; the liquid filling hoses have a deformation allowance between the first end and the second end for the lifting plate to rise and fall, so that the wiring path of the liquid filling hoses avoids the space directly above the annular conveyor line.

[0011] Preferably, the film-feeding and heat-sealing assembly sequentially includes a first heat-sealing structure and a second heat-sealing structure along the conveying direction of the annular conveyor line; the first heat-sealing structure includes a radial positioning plate, a vertical positioning plate, and a positioning heat-sealing head; the radial positioning plate is configured to move horizontally toward the annular conveyor line to cooperate with the accompanying mold position to radially clamp and position the bottle; the vertical positioning plate is configured to move up and down to position the top of the bottle, and the vertical positioning plate has a film-feeding positioning hole and a clearance groove communicating with the film-feeding positioning hole for each bottle; the positioning heat-sealing head is configured to be in a clearance position when the film is fed to the bottle mouth, and after the film is fed, it cuts into the clearance groove of the vertical positioning plate to position and heat-press the film at the bottle mouth.

[0012] Preferably, the first heat-sealing structure further includes a film placement slot, a lifting and flipping rod, and multiple sets of film suction heads; the film placement slot is located above the lifting and flipping rod and is used to stack films; the lifting and flipping rod is configured to be liftable and flippable around its own axis; corresponding to each film placement positioning hole, two film suction heads are radially oppositely arranged on the lifting and flipping rod; the lifting and flipping rod is configured such that when it descends, the lower film suction head passes through the film placement positioning hole to place the film at the bottle mouth, while the upper film suction head picks up the next film from the bottom of the film placement slot; after the film is placed, the lifting and flipping rod rises to avoid obstruction.

[0013] Preferably, the second heat-sealing structure includes a secondary pressing drive and a plurality of final sealing heat-sealing heads; the plurality of final sealing heat-sealing heads are disposed downstream of the first heat-sealing structure, and the arrangement spacing of the plurality of final sealing heat-sealing heads is adapted to the arrangement spacing of the accompanying mold position; the secondary pressing drive is driven to the final sealing heat-sealing heads, and is configured to drive the final sealing heat-sealing heads to descend and fully press them onto the film when the bottle body with the positioning heat-pressing fixing film moves to directly below the final sealing heat-sealing head, so that the film is completely heat-sealed at the bottle mouth.

[0014] Preferably, the cap feeding and crimping assembly includes a cap feeding lifter, a cap conveying track, and a crimping mechanism; the cap feeding lifter is configured to organize the bottle caps and output them in a single row to the cap conveying track; the cap conveying track is provided with multiple spaced positioning protrusions, which are configured to separate and equidistantly position the bottle caps conveyed in a single row; the crimping mechanism includes a lifting assembly and multiple arrayed crimping claws driven by the lifting assembly, the spacing of the multiple crimping claws being adapted to the spacing of the accompanying mold; the multiple crimping claws are configured to synchronously grab the bottle caps positioned by the positioning protrusions from the cap conveying track and descend to synchronously assemble the bottle caps onto the bottle mouth after sealing.

[0015] Preferably, the annular conveyor line has a capping straight conveyor section; the high-stability full-chain clean liquid filling machine also includes a discharge track and a feeding assembly; the cap conveyor track and the discharge track are both arranged parallel to the capping straight conveyor section, and the conveying directions of the cap conveyor track and the discharge track are opposite to the conveying directions of the adjacent capping straight conveyor section, forming a reversible flow path; the transfer assembly for bottle entry and the feeding assembly for bottle exit have the same structure, both including a translation cylinder, a lifting cylinder, a gripper mounting plate, and multiple grippers arranged in an array; the translation cylinder is configured to drive the lifting cylinder and the gripper mounting plate to move laterally, and the lifting cylinder is configured to drive the gripper mounting plate to move vertically, so that the transfer assembly and the feeding assembly respectively perform lateral transfer of the bottle and the finished product between the reversible flow path.

[0016] The high-stability, end-to-end clean liquid filling machine provided in this application integrates components such as air washing, liquid addition, heat sealing, and capping around a circular conveyor line. The air washing component uses a rotating roller with insertion holes on its outer periphery, combined with the suction air channel inside the roller and the air needle in the insertion hole, so that the internal airflow purging and negative pressure suction are combined during the bottle rotation process, effectively neutralizing static electricity and removing impurities attached to the bottle. At the same time, combined with the downward avoidance arrangement of the liquid addition pipeline, the step-by-step avoidance heat pressure of the heat sealing component, and the folding parallel layout of the outer conveyor track, the spatial interference and heat radiation effects between the various processes of the whole machine are reduced, thereby improving the stability of equipment operation, space utilization, and finished product yield. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly described below. Obviously, the drawings described below are only for illustrating preferred embodiments and are not intended to limit the scope of this application. In the drawings: Figure 1This is a schematic diagram of the structure of the high-stability end-to-end clean liquid filling machine provided in the embodiments of this application.

[0018] Figure 2 This is another structural schematic diagram of the highly stable end-to-end clean liquid filling machine provided in the embodiments of this application.

[0019] Figure 3 This is a schematic diagram of the position arrangement of the discharge track provided in the embodiments of this application.

[0020] Figure 4 yes Figure 1 Enlarged diagram of point A in the middle.

[0021] Figure 5 yes Figure 1 Enlarged diagram of point B in the middle.

[0022] Figure 6 This is a schematic diagram of the location arrangement of the transfer component provided in the embodiments of this application.

[0023] Figure 7 This is a schematic diagram of the structure of the film-laying and heat-sealing assembly provided in the embodiments of this application.

[0024] Figure 8 yes Figure 7 Enlarged diagram of point C in the middle.

[0025] Figure 9 This is a schematic diagram of the structure of the cover and the crimping assembly provided in the embodiments of this application.

[0026] Figure 10 This is a schematic diagram of the air washing assembly provided in the embodiments of this application.

[0027] Figure 11 This is a schematic diagram of the planar structure of the air washing assembly provided in the embodiments of this application.

[0028] Figure 12 yes Figure 11 Sectional view at point DD.

[0029] Figure 13 yes Figure 12 Enlarged diagram of point E in the middle.

[0030] The components include: bottle body 1, diaphragm 2, bottle cap 3, finished product 4, bottle distribution assembly 10, empty bottle elevator 11, conveyor belt 12, branching baffle 13, translation drive mechanism 14, output track 15, conveying channel 16, air washing assembly 20, tilting roller 21, feeding belt 211, discharging belt 212, insertion hole 22, suction air channel 23, air needle 24, air nozzle suction head 25, rotation drive mechanism 29, drive cylinder 291, rack 292, gear 293, frame 30, circular conveyor line 40, capping linear conveyor section 42, conveyor chain 43, mold block 44, receiving groove 45, outer guard rail 46, transfer assembly 50, liquid filling assembly 60, lifting drive mechanism 61, and lifting plate 6. 2. Filling needle 63, liquid addition hose 64, film placement and heat sealing assembly 70, first heat sealing structure 71, radial positioning plate 711, vertical positioning plate 712, film placement positioning hole 713, clearance groove 714, positioning heat sealing head 715, film placement groove 716, lifting and flipping rod 717, film suction head 718, second heat sealing structure 72, secondary pressing drive 721, final sealing heat sealing head 722, cap feeding and cap crimping assembly 80, cap feeding lifter 81, cap conveying track 82, positioning protrusion 83, cap crimping mechanism 84, lifting assembly 85, cap crimping gripper head 86, unloading assembly 90, discharge track 91, translation cylinder 100, lifting cylinder 101, gripper mounting plate 102, gripper 103. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] It should be noted that, unless otherwise expressly specified and limited, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0033] In its terminology, the terms "comprising" and "having," and any variations thereof, in this specification and claims are intended to cover non-exclusive inclusion. The terms "first," "second," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance, or implicitly specifying the number, particular order, or primary / secondary relationship of the indicated technical features. Furthermore, "a plurality of" means two or more, unless otherwise explicitly defined.

[0034] In terms of spatial orientation, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the embodiments of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Regarding connection relationships, the technical terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0036] like Figures 1 to 13 As shown, this embodiment provides a highly integrated, highly stable, end-to-end clean liquid filling machine, which is mainly used in liquid packaging production lines in the daily chemical, pharmaceutical, and food industries. This highly stable, end-to-end clean liquid filling machine mainly includes a bottle dispensing and distribution assembly 10, an air washing assembly 20, a frame 30, a transfer assembly 50, a liquid dispensing assembly 60, a film placement and heat sealing assembly 70, and a cap feeding and crimping assembly 80. The frame 30 serves as the basic load-bearing structure of the entire machine, on which a circular conveyor line 40 is installed. The circular conveyor line 40 is equipped with accompanying molds arranged at equal intervals along the conveying direction, used to carry the bottles 1 for orderly and precise transfer between various processing stations.

[0037] In this embodiment, as Figure 2 , Figure 3 As shown, the circular conveyor line 40 includes a horizontally arranged driving wheel, a driven wheel, and a closed-loop conveyor chain 43 wound between the driving wheel and the driven wheel. The accompanying module is composed of multiple module blocks 44 that are sequentially spliced ​​and fixed to the outside of the closed-loop conveyor chain 43. Each module block 44 has a receiving groove 45 that opens radially outward. The inner contour of the receiving groove 45 is adapted to the shape of the outer wall of the bottle body 1, and is used to allow the bottle body 1 to be radially inserted and supported when the transfer assembly 50 enters the bottle.

[0038] To ensure the stability of bottle 1 during the transfer process, especially to prevent bottle 1 from being thrown out by centrifugal force when passing through the arc-shaped reversal section where the drive wheel or driven wheel is located, an outer guard rail 46 is fixedly installed on the frame 30 along the outer perimeter of the closed-loop conveyor chain 43. The inner wall of the outer guard rail 46 is directly opposite the opening of the receiving groove 45 of the mold block 44, and the distance between the bottom of the outer guard rail 46 and the receiving groove 45 is slightly larger than the diameter of bottle 1. In actual operation, when the closed-loop conveyor chain 43 drives the mold block 44 forward, the inner wall of the outer guard rail 46 and the receiving groove 45 together form a dynamic closed clamping space, thereby providing reliable radial restraint for bottle 1, ensuring that bottle 1 can smoothly transition in both the straight conveying section and the arc-shaped conveying section, and avoiding positional displacement during processes such as liquid addition, film placement, and capping.

[0039] In some embodiments, such as Figure 1 , Figure 2 As shown, the bottle distribution assembly 10 is located at the very front of the entire production line, used to efficiently distribute the input scattered bottles 1 to multiple parallel output tracks 15. Specifically, the bottle distribution assembly 10 includes an empty bottle elevator 11, a conveyor belt 12, multiple branching baffles 13, and a translation drive mechanism 14. The multiple parallel output tracks 15 are arranged side by side downstream of the output end of the conveyor belt 12. The empty bottle elevator 11 is located at the feed end of the conveyor belt 12, used to lift the bottles 1 upwards and continuously feed them onto the conveyor belt 12. The multiple branching baffles 13 are arranged in pairs directly above the conveyor belt 12, with a small gap between the bottom edge of the branching baffles 13 and the surface of the conveyor belt 12, forming a predetermined conveying channel 16 in conjunction with the conveyor belt 12. The translation drive mechanism 14 is connected to the branching baffles 13 and is configured to drive the branching baffles 13 forming the conveying channel 16 to move synchronously laterally in the horizontal plane.

[0040] In actual operation, the translation drive mechanism 14 reciprocates according to the instructions of the control system, thereby dynamically switching the output end position of the conveying channel 16, so that the conveying channel 16 selectively connects with each output track 15, realizing the dynamic allocation of the single-row conveyed bottles 1 into multiple parallel arrays. Through the above-mentioned bottle distribution component 10 structure, the empty bottle elevator 11 and the conveyor belt 12 work together to ensure the continuous automated feeding of bottles 1. The two opposing guide bars 13 form the conveying channel 16 above the conveyor belt 12, guiding and limiting the bottles 1 on both sides to prevent the bottles 1 from tipping over or shifting position during the conveying process. The translation drive mechanism 14 drives the guide bars 13 to move laterally synchronously as a whole, and through the overall translation and track changing method, the single-row continuously input bottles 1 are dynamically allocated to multiple parallel output tracks 15. This structure avoids the bottle jamming and compression deformation problems that are easily caused by traditional dial or fixed guide plate diversion mechanisms during diversion, ensuring the continuity and smoothness of material flow. At the same time, it completes the conversion from single-row feeding to multi-row array within the limited equipment space, providing a stable material base for subsequent multi-station parallel processing operations and improving the automated distribution capability of the front end of the machine.

[0041] In some embodiments, such as Figure 1 , Figure 10 , Figure 12 , Figure 13 As shown, the air washing assembly 20 is located at the output end of the bottle dispensing assembly 10 and is used to remove dust and static electricity from the bottles 1 before they enter the circular conveyor line 40. Specifically, the air washing assembly 20 includes a rotating roller 21. The outer peripheral wall of the rotating roller 21 has multiple insertion holes 22 for docking and accommodating bottle mouths, and the multiple insertion holes 22 are correspondingly arranged with each output track 15. The rotating roller 21 has a suction air passage 23 along the axial direction that communicates with the bottom of each insertion hole 22. An air needle 24 is provided in the suction air passage 23 corresponding to each insertion hole 22, and an air nozzle 25 is provided on the inner wall of the insertion hole 22. The air nozzle 25 is connected to a first negative pressure source, the exhaust end of the suction air passage 23 is connected to a second negative pressure source, and the air inlet end of the air needle 24 is connected to an ion air generator. The air needle 24 extends at least partially into the insertion hole 22 and is arranged coaxially with the insertion hole 22 to ensure that the blown airflow can reach the bottom of the bottle. One end of the tilting roller 21 is connected to a rotation drive mechanism 29 that drives it to rotate around its own axis.

[0042] In practical implementation, the high-stability, end-to-end clean liquid filling machine also includes a controller, which is electrically connected to the rotation drive mechanism and the negative pressure source. The air washing component 20 is configured as follows: When the bottle 1 is in a horizontal position in the initial receiving state, and its mouth is inserted into the insertion hole 22 and connected with the suction channel 23, the first negative pressure source is activated. The air nozzle 25 generates negative pressure to reliably adsorb and fix the outer wall of the bottle 1. Subsequently, the rotation drive mechanism 29 drives the tilting roller 21 to rotate 180 degrees around its own axis from the initial receiving state to the impurity discharge state with the bottle mouth facing downward. During this dynamic tilting stroke, the air needle 24 continuously sprays ion air into the bottle 1. This ion air can quickly neutralize the static charge accumulated on the inner wall of the bottle 1, destroy the electrostatic adsorption force of dust and impurities, and blow them away and peel them off. At the same time, the negative pressure adsorption state maintained by the air nozzle 25 can effectively overcome the reaction force generated by the high-pressure airflow sprayed by the air needle 24, prevent the bottle 1 from being pressed out of the insertion hole 22, and ensure the structural stability of the bottle 1 during the tilting process. When the rotating drum 21 rotates to the impurity removal state, i.e., the bottle 1 is in a vertical inverted position, the air needle 24 stops spraying ion air, and at the same time, the second negative pressure source is activated, and the suction channel 23 starts negative pressure suction. Combined with the synergistic effect of gravity guidance and negative pressure suction, suspended and detached impurities are efficiently discharged through the insertion hole 22 and the suction channel 23. After the suction and impurity removal process is completed, the rotation drive mechanism 29 drives the rotating drum 21 to rotate and reset to the initial receiving state, and the first negative pressure source is turned off, causing the air nozzle 25 to release negative pressure adsorption, so that the bottle 1, which has completed the dust removal operation, can smoothly exit the insertion hole 22.

[0043] In this embodiment, the rotation drive mechanism 29 is specifically configured as a rack and pinion transmission mechanism, which includes a drive cylinder 291, a rack 292, and a gear 293. The gear 293 is coaxially and fixedly connected to the end shaft of the tilting roller 21. The drive cylinder 291 is horizontally and fixedly mounted on the frame 30, and the piston rod output end of the drive cylinder 291 is fixedly connected to one end of the rack 292. The teeth of the rack 292 mesh with the gear 293. During actual operation, the drive cylinder 291 drives the piston rod to extend or retract, causing the rack 292 to perform horizontal reciprocating linear motion. Through the meshing transmission between the gear and the rack, the linear motion is converted into the rotational motion of the gear 293. Thus, by configuring the travel stroke of the drive cylinder 291 and the transmission ratio of the gear 293, a single linear stroke of the rack 292 can drive the gear 293 to drive the tilting roller 21 to achieve a precise 180-degree tilt, thereby meeting the reciprocating switching requirements of the bottle 1 from a horizontal receiving state to a vertical inverted state. This structure not only provides smooth transmission and high torque, but also enables absolute positioning of the tilt angle by relying on the mechanical dead point of the cylinder.

[0044] Meanwhile, to ensure a smooth transition of material flow, both the infeed and discharge sides of the tilting roller 21 are equipped with belt conveyor structures for connecting with upstream and downstream equipment. Specifically, the infeed side of the tilting roller 21 is equipped with an infeed belt 211, and the discharge side is equipped with an discharge belt 212. The output end of the infeed belt 211 is flush with the insertion hole 22 of the tilting roller 21 in its initial receiving state, used to smoothly guide the bottle body 1 output from the bottle distribution component 10 into the insertion hole 22; the input end of the discharge belt 212 is also flush with the insertion hole 22 after the tilting and resetting process, used to smoothly export the cleaned bottle body 1 and transport it to the gripping station of the transfer component 50. This belt connection structure achieves a seamless and smooth transition of the bottle body 1 between the air washing component 20 and the upstream and downstream equipment, avoiding material jamming or tipping at the junction.

[0045] In some embodiments, the transfer assembly 50 is disposed between the air washing assembly 20 and the annular conveyor line 40, for synchronously transferring the air-washed bottle 1 from the air washing assembly 20 to the accompanying mold position. The liquid filling assembly 60 is disposed above the annular conveyor line 40, for quantitatively injecting liquid material into the bottle 1. The liquid filling assembly 60 includes a lifting drive mechanism 61, a lifting plate 62, multiple filling needles 63, and multiple liquid filling hoses 64. The lifting plate 62 is disposed above the annular conveyor line 40, and the lifting drive mechanism 61 is disposed on the frame 30 and is drively connected to the lifting plate 62 to drive the lifting plate 62 to move vertically. Multiple filling needles 63 are installed on the lower surface of the lifting plate 62, and the arrangement spacing is strictly adapted to the arrangement spacing of the accompanying mold position. Multiple liquid filling hoses 64 are arranged one-to-one with multiple filling needles 63, and the first end of each liquid filling hose 64 is connected to the corresponding filling needle 63. To avoid pipeline interference, the second end of the liquid filling hose 64 extends downward and is fixed to the frame 30 below the annular conveyor line 40. A deformation allowance is provided between the first and second ends of the liquid filling hose 64 for the lifting plate 62 to move; that is, the length of the liquid filling hose 64 is greater than the straight-line distance from the first end to the second end when the lifting plate 62 is at its highest point. This ensures that the overall wiring path of the liquid filling hose 64 avoids the space directly above the annular conveyor line 40, structurally solving the problem of traditional suspended pipelines easily entangled with moving parts.

[0046] In some embodiments, the film placement and heat sealing assembly 70 is disposed downstream of the liquid addition assembly 60 along the conveying direction of the annular conveyor line 40, for performing a two-step heat sealing operation, and sequentially includes a first heat sealing structure 71 and a second heat sealing structure 72. The first heat sealing structure 71 includes a radial positioning plate 711, a vertical positioning plate 712, a positioning heat sealing head 715, a film placement groove 716, a lifting and flipping rod 717, and multiple sets of film suction heads 718. The flipping rotation and lifting action of the lifting and flipping rod 717 are respectively driven by corresponding drive mechanisms. The radial positioning plate 711 is configured to move horizontally toward the annular conveyor line 40 to cooperate with the accompanying mold position to radially clamp and position the bottle 1. The vertical positioning plate 712 is configured to move vertically to limit the top of the bottle 1, and has a film placement positioning hole 713 and a clearance groove 714 communicating with the film placement positioning hole 713 for each bottle 1. The film placement groove 716 is disposed above the lifting and flipping rod 717 for stacking the film 2. The lifting and flipping rod 717 is configured to be liftable and flippable around its own axis, with two suction heads 718 arranged radially opposite each other on it. During operation, as the lifting and flipping rod 717 descends, the lower suction head 718 passes through the film placement positioning hole 713 and precisely places the film 2 at the bottle mouth. Simultaneously, the upper suction head 718 picks up the next film 2 from the bottom of the film placement slot 716. After film placement is completed, the lifting and flipping rod 717 rises to avoid obstruction and flips. The positioning heat-sealing head 715 is configured to be in a lateral avoidance position when placing film at the bottle mouth, and after the lifting and flipping rod 717 rises to avoid obstruction, it cuts into the clearance groove 714 of the vertical positioning plate 712 to position and heat-press the film 2 at the bottle mouth. The second heat-sealing structure 72 includes a secondary pressing drive 721 and multiple final sealing heat-sealing heads 722. The secondary pressure drive 721 is connected to the final sealing heat sealing head 722 for transmission. It is configured such that when the bottle body 1 with the positioning heat-pressing fixed diaphragm 2 moves to the bottom, the final sealing heat sealing head 722 is driven to descend and fully press against the diaphragm 2 to achieve complete heat sealing of the diaphragm 2.

[0047] In some embodiments, the cap sorting and crimping assembly 80 is located downstream of the film dispensing and heat sealing assembly 70, and includes a cap sorting lifter 81, a cap conveying track 82, and a crimping mechanism 84. The cap sorting lifter 81 is configured to sort the bottle caps 3 and output them in a single row to the cap conveying track 82. The cap conveying track 82 is provided with a plurality of spaced positioning protrusions 83, which are configured to forcibly separate and equidistantly position the bottle caps 3 conveyed in a single row. The crimping mechanism 84 includes a lifting assembly 85 and a plurality of arrayed crimping grippers 86 driven by the lifting assembly 85, the spacing of which is adapted to the following mold position. The plurality of crimping grippers 86 are configured to synchronously grasp the bottle caps 3 positioned by the positioning protrusions 83 from the cap conveying track 82, and descend to synchronously assemble and crimp the bottle caps 3 onto the bottle mouth of the sealed bottle body 1.

[0048] In some embodiments, to accommodate the floor space of the compression equipment, the circular conveyor line 40 includes a capping linear conveyor section 42, and a discharge track 91 and a feeding assembly 90 are arranged on the side of the frame 30. The capping conveyor track 82 and the discharge track 91 are both arranged parallel to the capping linear conveyor section 42, and the conveying directions of the capping conveyor track 82 and the discharge track 91 are opposite to the conveying directions of the adjacent capping linear conveyor section 42, thereby forming a zigzag flow path in space.

[0049] In some embodiments, the transfer assembly 50 for bottle feeding and the unloading assembly 90 for bottle discharging adopt the same modular design in structure, both including a translation cylinder 100, a lifting cylinder 101, a gripper mounting plate 102, and multiple grippers 103 arranged in an array. The translation cylinder 100 is configured to drive the lifting cylinder 101 and the gripper mounting plate 102 to move laterally, and the lifting cylinder 101 is configured to drive the gripper mounting plate 102 to move vertically. Based on this cross-drive logic, the transfer assembly 50 and the unloading assembly 90 can efficiently perform lateral transfer operations of the bottle 1 and the finished product 4 between the reversible flow paths.

[0050] The high-stability, end-to-end clean liquid filling machine provided in this application integrates components such as air washing, liquid addition, heat sealing, and capping around a circular conveyor line. The air washing component uses a rotating roller with insertion holes on its outer periphery, combined with suction channels inside the roller and air needles in the insertion holes. This allows for a combination of internal airflow purging and negative pressure suction during the bottle's rotation, effectively neutralizing static electricity and removing impurities adhering to the bottle. Simultaneously, the downward-avoiding arrangement of the liquid addition pipeline, the step-by-step avoidance heat sealing of the heat sealing component, and the zigzag parallel layout of the outer conveyor track reduce the time required between different processes within the machine. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application.

[0051] In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments of this application can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A highly stable, end-to-end clean liquid filling machine, characterized in that, include: Bottle distribution component, used to distribute input bottles to multiple parallel output tracks; The air washing assembly is located at the output end of the bottle dispensing assembly; A frame on which a circular conveyor line is provided, the circular conveyor line being configured with accompanying mold positions arranged along the conveying direction; A transfer assembly is disposed between the air washing assembly and the annular conveyor line, and is used to transfer the air-washed bottle from the air washing assembly to the accompanying mold position. A liquid filling assembly, located above the annular conveyor line, is used to inject liquid into the bottle. The membrane placement and heat sealing assembly is located downstream of the liquid addition assembly along the conveying direction of the annular conveyor line, and is used to place the membrane at the bottle opening after liquid addition and perform heat sealing. The capping and crimping assembly is located at a station downstream of the film-laying and heat-sealing assembly, and is used to cap and crimp the sealed bottle. The air washing assembly includes a rotating drum. The outer peripheral wall of the rotating drum has multiple insertion holes for docking and accommodating bottle mouths. The multiple insertion holes are arranged one-to-one with the multiple output tracks. The rotating drum has a suction air passage along the axial direction that communicates with the bottom of each insertion hole. An air needle is provided in the suction air passage corresponding to each insertion hole. An air nozzle is provided on the inner wall of each insertion hole.

2. The high-stability, end-to-end clean liquid filling machine according to claim 1, characterized in that, The air nozzle is connected to the first negative pressure source, the exhaust end of the suction airway is connected to the second negative pressure source, and the air inlet end of the air needle is connected to the ion wind generator; the air needle extends at least partially into the insertion hole and is arranged coaxially with the insertion hole; one end of the rotating roller is connected to a rotation drive mechanism that drives it to rotate around its own axis.

3. The high-stability, end-to-end clean liquid filling machine according to claim 2, characterized in that, The air scrubbing assembly is configured as follows: When the bottle is in the initial receiving state and the bottle mouth is inserted into the insertion hole and connected to the suction channel, the air nozzle head adsorbs and fixes the bottle; The rotation drive mechanism drives the tilting roller to tilt from the initial receiving state to the impurity discharge state with the bottle mouth facing down. During the tilting stroke, the air needle sprays ion wind into the bottle body. When the rotating drum rotates to the impurity discharge state, the air needle stops spraying ion air, and the suction air passage opens for negative pressure suction. After the suction is completed, the rotating roller rotates back to the initial receiving state so that the bottle can be ejected.

4. The high-stability, end-to-end clean liquid filling machine according to claim 1, characterized in that, The bottle distribution assembly includes an empty bottle elevator, a conveyor belt, multiple branching baffles, and a translation drive mechanism. Multiple parallel output tracks are arranged side-by-side downstream of the output end of the conveyor belt. The empty bottle elevator is located at the inlet end of the conveyor belt to feed bottles onto it. Multiple branching baffles are arranged in pairs above the conveyor belt, forming a predetermined conveying channel. The translation drive mechanism is connected to the branching baffles and is configured to drive the branching baffles forming the conveying channel to synchronously translate laterally, thereby switching the output end position of the conveying channel and allowing the conveying channel to selectively connect with multiple output tracks.

5. The high-stability, end-to-end clean liquid filling machine according to claim 1, characterized in that, The liquid filling assembly includes a lifting drive mechanism, a lifting plate, multiple filling needles, and multiple liquid filling hoses. The lifting plate is positioned above the annular conveyor line. The lifting drive mechanism is mounted on the frame and is connected to the lifting plate to drive the lifting plate to move up and down. Multiple filling needles are mounted on the lifting plate, and the spacing between the multiple filling needles is adapted to the spacing between the accompanying mold positions. Multiple liquid filling hoses are arranged in a one-to-one correspondence with the multiple filling needles, and the first end of each liquid filling hose is connected to the corresponding filling needle, while the second end extends downward and is fixed to the frame located below the annular conveyor line. The liquid filling hoses have a deformation allowance between the first end and the second end for the lifting plate to move up and down, so that the wiring path of the liquid filling hoses avoids the space directly above the annular conveyor line.

6. The high-stability, end-to-end clean liquid filling machine according to any one of claims 1 to 5, characterized in that, The film-feeding and heat-sealing assembly sequentially includes a first heat-sealing structure and a second heat-sealing structure along the conveying direction of the annular conveyor line. The first heat-sealing structure includes a radial positioning plate, a vertical positioning plate, and a positioning heat-sealing head. The radial positioning plate is configured to move horizontally toward the annular conveyor line to cooperate with the accompanying mold position to radially clamp and position the bottle. The vertical positioning plate is configured to move up and down to position the top of the bottle. The vertical positioning plate has a film-feeding positioning hole and a clearance groove communicating with the film-feeding positioning hole for each bottle. The positioning heat-sealing head is configured to be in a clearance position when the film is fed to the bottle mouth, and after the film is fed, it cuts into the clearance groove of the vertical positioning plate to position and heat-press the film at the bottle mouth.

7. The high-stability, end-to-end clean liquid filling machine according to claim 6, characterized in that, The first heat-sealing structure further includes a film placement slot, a lifting and flipping rod, and multiple sets of film suction heads; the film placement slot is located above the lifting and flipping rod and is used to stack films; the lifting and flipping rod is configured to be liftable and flippable around its own axis; corresponding to each film placement positioning hole, two film suction heads are arranged radially opposite each other on the lifting and flipping rod; the lifting and flipping rod is configured such that when it descends, the lower film suction head passes through the film placement positioning hole to place the film at the bottle mouth, while the upper film suction head picks up the next film from the bottom of the film placement slot; after the film is placed, the lifting and flipping rod rises to avoid obstruction.

8. The high-stability, end-to-end clean liquid filling machine according to claim 7, characterized in that, The second heat-sealing structure includes a secondary pressing drive and multiple final sealing heat-sealing heads; the multiple final sealing heat-sealing heads are disposed downstream of the first heat-sealing structure, and the arrangement spacing of the multiple final sealing heat-sealing heads is adapted to the arrangement spacing of the accompanying mold position; the secondary pressing drive is driven to the final sealing heat-sealing heads, and is configured to drive the final sealing heat-sealing heads to descend and fully press them onto the film when the bottle body with the positioning heat-pressing fixing film moves directly below the final sealing heat-sealing head, so that the film is completely heat-sealed at the bottle mouth.

9. The high-stability, end-to-end clean liquid filling machine according to claim 1, characterized in that, The cap feeding and crimping assembly includes a cap feeding lifter, a cap conveying track, and a crimping mechanism. The cap feeding lifter is configured to organize the bottle caps and output them in a single row to the cap conveying track. The cap conveying track is provided with multiple spaced positioning protrusions, which are configured to separate and equidistantly position the bottle caps conveyed in a single row. The crimping mechanism includes a lifting assembly and multiple arrayed crimping claws driven by the lifting assembly. The spacing between the multiple crimping claws is adapted to the spacing between the accompanying mold positions. The multiple crimping claws are configured to synchronously grab the bottle caps positioned by the positioning protrusions from the cap conveying track and descend to synchronously assemble the bottle caps onto the bottle mouth after sealing.

10. The high-stability, end-to-end clean liquid filling machine according to claim 1, characterized in that, The circular conveyor line has a capping straight conveyor section; the high-stability full-chain clean liquid filling machine also includes a discharge track and a feeding assembly; the cap conveyor track and the discharge track are both arranged parallel to the capping straight conveyor section, and the conveying directions of the cap conveyor track and the discharge track are opposite to the conveying directions of the adjacent capping straight conveyor section, forming a reversible flow path; the transfer assembly for bottle entry and the feeding assembly for bottle exit have the same structure, both including a translation cylinder, a lifting cylinder, a gripper mounting plate, and multiple grippers arranged in an array; the translation cylinder is configured to drive the lifting cylinder and the gripper mounting plate to move laterally, and the lifting cylinder is configured to drive the gripper mounting plate to move vertically, so that the transfer assembly and the feeding assembly respectively perform lateral transfer of the bottle and the finished product between the reversible flow path.

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