Self-adaptive bag jacking mechanism for sterile bag filling

Abstract

The invention relates to a self-adaptive bag jacking mechanism for sterile bag filling, and belongs to the technical field of sterile bag filling, the self-adaptive bag jacking mechanism comprises an air cylinder, a limiting assembly is arranged on the outer surface of the air cylinder, a blocking assembly is arranged at the top of the air cylinder, the limiting assembly penetrates through the blocking assembly, and the output end of the air cylinder penetrates through the blocking assembly. A position covering assembly is fixed to the output end of the air cylinder, the limiting assembly penetrates through the position covering assembly and is fixed to the position covering assembly, a jacking and supporting mechanism is arranged in the position covering assembly, a connecting part is arranged above the jacking and supporting mechanism, the connecting part is fixedly communicated with a filling bag, a filling pipe used for filling liquid is arranged on the connecting part, and the filling bag is provided with a liquid outlet. And the other end of the filling pipe is fixedly communicated with a filling machine. According to the self-adaptive bag jacking mechanism for sterile bag filling, the position covering assembly can provide enough supporting force for the jacking and supporting mechanism, it can be guaranteed that when the jacking and supporting mechanism carries out bag jacking and sealing on a sterile bag, the good attaching performance between the sterile bag and a filling pipe is kept, and the sealing performance is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of aseptic bag filling, in particular to an aseptic bag filling adaptive top bag mechanism. Background Art

[0002] The aseptic bag-in-box filling machine produces packaged products, which requires cutting and separating the connected aseptic bag-in-boxes, and then performing aseptic sterilization on the filling nozzle for filling the aseptic bag with liquid materials. Subsequently, the filling nozzle is opened, filled, sealed, and sent out in a sterile space to complete the filling of the aseptic bag-in-box. Due to the existing aseptic bag filling technology, it is inevitable that the positive pressure air in the filling space will enter the aseptic bag-in-box during the time from when the filling nozzle is opened to when it is sealed, causing a large amount of air to enter and remain inside the aseptic bag during the filling process. Therefore, a bag-top mechanism is required to ensure the sealing.

[0003] For example, a Chinese patent (publication number: CN103910096A) discloses an automatic bagging and filling machine for aseptic small bags, which includes a disinfection mechanism, a bag feeding mechanism, a guiding mechanism, a bag cutting mechanism, a filling head mechanism, a steam sterilization mechanism, a conveying mechanism and a control mechanism arranged on a frame, wherein the bag feeding mechanism, the bag cutting mechanism, the filling head mechanism, the steam sterilization mechanism and the conveying mechanism are all connected to the control mechanism; after the aseptic bag is disinfected by the disinfection mechanism, it is pushed to the bag cutting mechanism along the guiding mechanism by the bag feeding mechanism, and after the aseptic bag is cut by the bag cutting mechanism, it is continuously sent to the filling head mechanism by the bag feeding mechanism, and the aseptic bag is sterilized by the steam sterilization mechanism before entering the filling head mechanism, and the aseptic bag is filled at the filling head mechanism, and the bag feeding mechanism returns to the disinfection mechanism to continue to push the aseptic bag, and the aseptic bag after filling is conveyed to the outside by the conveying mechanism. Compared with the prior art, the invention has the advantages of wide application range, high safety, high production efficiency, precise control, and easy operation.

[0004] However, the filling sealing performance of the device is not strong. Due to the lack of a bag-top mechanism, it is difficult to effectively seal the filling bag. During actual filling, air can easily enter the filling bag, which may affect the filling quality. Therefore, an adaptive bag-top mechanism for aseptic bag filling is proposed to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an adaptive top bag mechanism for aseptic bag filling, which has the advantages of strong sealing and solves the problem of insufficient sealing.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adaptive top bag mechanism for filling sterile bags, comprising a cylinder, the outer surface of the cylinder is provided with a limit assembly for improving the overall stability, the top of the cylinder is provided with a blocking assembly for blocking the limit assembly, the limit assembly passes through the blocking assembly, the output end of the cylinder passes through the blocking assembly, the output end of the cylinder is fixed with a filling assembly that can be adaptively adjusted, the limit assembly passes through the filling assembly and is fixed to the filling assembly, the filling assembly is provided with a top support mechanism that extends to the outside of the filling assembly and can ensure sealing, a connecting part is provided above the top support mechanism for cooperating with the top support mechanism to press and seal the filling bag, the connecting part is fixedly connected to the filling bag, a perfusion tube for pouring liquid is provided on the connecting part, and the other end of the perfusion tube is fixedly connected to a filling machine.

[0007] Furthermore, the limit assembly includes a U-shaped frame slidably connected to the outer surface of the cylinder, the top of the U-shaped frame and the left and right sides of the cylinder are fixedly connected to the limit sleeve, each of the limit sleeves is movably connected to a limit rod, each of the limit rods extends outside the limit sleeve, each of the limit rods located below the limit sleeve passes through the U-shaped frame and is fixed to the U-shaped frame, and each of the limit rods located above the limit sleeve passes through the blocking assembly and is fixed to the blocking assembly.

[0008] Furthermore, the blocking assembly includes a mounting frame fixed to the top of the cylinder, two guide sleeves are fixed to the top of the mounting frame, four connecting bolts are fixed to the top of the mounting frame and between the two guide sleeves, the mounting frame is fixed to the top of the cylinder by the four connecting bolts, the two guide sleeves both pass through the mounting frame, the two limit rods respectively pass through the two guide sleeves, and the output end of the cylinder passes through the mounting frame.

[0009] Furthermore, the compensation component includes a mounting seat fixed to the two limit rods, the bottom of the mounting seat is located between the two limit rods and is fixed to the output end of the cylinder, two spring holes are provided on the mounting seat and connecting plates are fixed on the top of the mounting seat and on the left and right sides of the two spring holes, two fixing bolts are fixed to the bottom of the mounting seat that extend into the two spring holes respectively, a connecting spring is fixed to the top of each fixing bolt and in the spring hole, an abutment joint extending to the outside of the spring hole is fixed to the top of each connecting spring, positioning holes are provided on the two connecting plates, a pin shaft is movably connected in the positioning hole, and the pin shaft passes through the two connecting plates through the two positioning holes.

[0010] Furthermore, the supporting mechanism includes a connecting seat extending between the two connecting plates, the pin shaft penetrates the connecting seat and is rotatably connected to the connecting seat, a driving motor is fixed to the inner bottom wall of the connecting seat, a protective shell is fixed to the top of the connecting seat, an active rod is fixed to the output shaft of the driving motor, and the active rod includes a primary driving rod and a secondary driving rod, the primary driving rod is fixed to the output shaft of the driving motor, the primary driving rod extends into the secondary driving rod and meshes with the inner wall of the secondary driving rod, the secondary driving rod penetrates the bottom wall of the protective shell and is rotatably connected to the bottom wall of the protective shell through a bearing, a driving gear is fixed on the outer surface of the secondary driving rod and located in the protective shell, a primary moving assembly is provided above the driving gear, a secondary moving assembly is provided on the outer side of the driving gear, a third moving assembly is provided on the outer side of the second moving assembly, and protective assemblies are provided on the outer surfaces of the secondary moving assembly and the third moving assembly.

[0011] Furthermore, the primary moving assembly includes a threaded barrel fixed to the top of the driving gear, the outer surface of the threaded barrel is threadedly connected to a connecting block, and a top support plate is fixed to the top of the connecting block.

[0012] Furthermore, the secondary moving component includes a plurality of transmission threaded rods rotatably connected to the inner bottom wall of the protective shell through bearings, the outer surface of each of the transmission threaded rods is fixed to the protective component, the outer surfaces of the plurality of protective components located on the outside of the transmission threaded rods are fixed with transmission gears meshing with the driving gears, and the outer surfaces of the plurality of transmission threaded rods are threadedly connected to a moving ring located on the outside of the connecting block.

[0013] Furthermore, the three-stage moving component includes a plurality of driven threaded rods rotatably connected to the inner bottom wall of the protective shell through bearings, the outer surface of each driven threaded rod is fixed to the protective component, the outer surfaces of the plurality of protective components located on the outer surfaces of the driven threaded rods are fixed with driven gears meshing with the transmission gears, the outer surfaces of the plurality of driven threaded rods are threadedly connected with an outer ring located on the outer side of the moving ring, the outer side of the outer ring is fixed with a plurality of T-blocks, the inner side wall of the protective shell is provided with a plurality of T-slots, the plurality of T-blocks respectively extend into the plurality of T-slots and are movably connected to the T-slots, and the inner side of the outer ring is fixed with a plurality of A limit block, a plurality of limit grooves are provided on the outer side of the movable ring, the plurality of limit blocks extend into the plurality of limit grooves respectively and are movably connected with the limit grooves, the outer surfaces of the connecting block and the top support plate are provided with a plurality of movable grooves, a plurality of movable blocks are fixed on the inner side of the movable ring, which extend into the plurality of movable grooves respectively and are movably connected with the movable grooves, the protection component consists of an outer ring, a retaining frame, a plurality of rolling balls and an inner ring, a retaining frame is fixed on the inner side of the outer ring, a plurality of rolling balls are movably connected in the retaining frame, the inner ring is movably connected to the retaining frame, and the protection component is filled with a damping fluid with a high viscosity coefficient.

[0014] Furthermore, the connection portion includes a filling nozzle fixedly connected to the top of the sterile bag, and a sealing cover is movably connected to the inner side of the filling nozzle.

[0015] Furthermore, the perfusion pipe includes a stabilizing tube fixedly connected to the output end of the perfusion machine, the bottom of the stabilizing tube is fixedly connected to a connecting tube, a plurality of compression springs are fixed to the inner top wall of the connecting tube, and a movable tube extending outside the connecting tube is fixed to the bottom of the plurality of compression springs.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The self-adaptive bag-top mechanism for filling sterile bags has a filling component that can provide sufficient support for the supporting mechanism and ensure that the supporting mechanism maintains good fit with the perfusion tube when sealing the sterile bag, thereby effectively improving the sealing performance.

[0017] 2. Due to the structural limitation of the connecting part itself, the aseptic bag filling adaptive bag-top mechanism may inevitably have air residue at the connection between the connecting part and the aseptic bag, and the supporting mechanism can effectively support the connection, thereby effectively improving the overall sealing.

[0018] 3. The aseptic bag filling adaptive top bag mechanism and the perfusion tube have good elasticity, which can better adapt to the top support mechanism, effectively improve the sealing performance, and the protective component can provide good protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a three-dimensional exploded view of the present invention; Figure 3 A diagram showing the connection relationship between the supporting mechanism and the connecting part of the present invention; Figure 4 A diagram showing the connection relationship between the connecting portion and the perfusion tube of the present invention; Figure 5 It is a structural schematic diagram of the top support mechanism of the present invention; Figure 6 is a three-dimensional cross-sectional view of the protection assembly of the present invention; Figure 7 It is a three-dimensional exploded view of the protection component of the present invention; Figure 8 For the present invention Figure 4 Enlarged view of point A in the middle.

[0020] In the figure: 1 cylinder, 2 limit assembly, 201 U-shaped frame, 202 limit sleeve, 203 limit rod, 3 blocking assembly, 301 mounting frame, 302 connecting bolt, 303 guide sleeve, 4 supplementary assembly, 401 mounting seat, 402 pin shaft, 403 tightening bolt, 404 connecting spring, 405 abutment, 5 support mechanism, 501 connecting seat, 502 driving motor, 503 protective shell, 504 active rod, 505 active gear, 506 primary moving assembly, 5061 threaded cylinder, 5062 connecting block, 5063 support plate, 507 secondary moving assembly, 5071 transmission threaded rod, 5072 moving ring, 5073 transmission gear, 508 tertiary moving assembly, 5081 driven threaded rod, 5082 driven gear, 5083 outer ring, 5084 T-block, 509 protection assembly, 5091 outer ring, 5092 retaining frame, 5093 rolling ball, 5094 inner ring, 6 connecting part, 601 filling nozzle, 602 sealing cover, 7 filling tube, 701 stabilizing tube, 702 connecting tube, 703 compression spring, 704 moving tube. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 4 In this embodiment, an adaptive top bag mechanism for filling a sterile bag comprises a cylinder 1, a limiting component 2 for improving the overall stability is provided on the outer surface of the cylinder 1, a blocking component 3 for blocking the limiting component 2 is provided on the top of the cylinder 1, the limiting component 2 penetrates the blocking component 3, the output end of the cylinder 1 penetrates the blocking component 3, a filling component 4 capable of adaptive adjustment is fixed to the output end of the cylinder 1, the limiting component 2 penetrates the filling component 4 and is fixed to the filling component 4, a supporting mechanism 5 extending to the outside of the filling component 4 and capable of ensuring sealing is provided in the filling component 4, a connecting part 6 for cooperating with the supporting mechanism 5 to press and seal the filling bag is provided above the supporting mechanism 5, the connecting part 6 is fixedly connected to the filling bag, a filling tube 7 for filling liquid is provided on the connecting part 6, and the other end of the filling tube 7 is fixedly connected to a filling machine.

[0023] In addition, the limiting assembly 2 includes a U-shaped frame 201 slidably connected to the outer surface of the cylinder 1. The U-shaped frame 201 can be sleeved on the outside of the cylinder 1 and can move freely to effectively improve the overall stability. The top of the U-shaped frame 201 and the left and right sides of the cylinder 1 are fixedly connected to the limiting sleeve 202. Each limiting sleeve 202 is movably connected to a limiting rod 203. Each limiting rod 203 extends to the outside of the limiting sleeve 202. Each limiting rod 203 located below the limiting sleeve 202 penetrates the U-shaped frame 201 and is fixed to the U-shaped frame 201. The U-shaped frame 201 is provided with two through holes, and the front side of the U-shaped frame 201 is in an open shape, and the opening extends into and communicates with the through holes. The sizes of the two openings are controlled by bolts. This structure can ensure the connection stability between the U-shaped frame 201 and the limiting rod 203, and the size of the opening can be smoothly adjusted by rotating the bolts, thereby effectively adjusting the relative distance between the U-shaped frame 201 and the limiting rod 203.

[0024] It can be known that the blocking assembly 3 includes a mounting frame 301 fixed to the top of the cylinder 1, and two guide sleeves 303 are fixed to the top of the mounting frame 301. The two guide sleeves 303 can effectively improve the stability of the two limit rods 203. Four connecting bolts 302 are fixed to the top of the mounting frame 301 and between the two guide sleeves 303. The four connecting bolts 302 play a connecting role and are used to ensure the stable connection between the mounting frame 301 and the cylinder 1. The mounting frame 301 is fixed to the top of the cylinder 1 by the four connecting bolts 302. The two guide sleeves 303 both penetrate the mounting frame 301, and the two limit rods 203 respectively penetrate the two guide sleeves 303. The output end of the cylinder 1 penetrates the mounting frame 301, and the mounting frame 301 is used to block the limit sleeves 202, thereby effectively limiting the extended length of the cylinder 1.

[0025] It should be further explained that the compensation component 4 includes a mounting seat 401 fixed to the two limiting rods 203, the mounting seat 401 plays a connecting role, and is used to connect the two limiting rods 203 and the output end of the cylinder 1. The bottom of the mounting seat 401 is located between the two limiting rods 203 and is fixed to the output end of the cylinder 1. Two spring holes penetrating the mounting seat 401 are provided on the mounting seat 401. The top of the mounting seat 401 and the left and right sides of the two spring holes are fixed with connecting plates. The bottom of the mounting seat 401 is fixed with two spring holes extending to the bottom of the mounting seat 401. The fixing bolts 403 in the two spring holes play a supporting role. A connecting spring 404 is fixed to the top of each fixing bolt 403 and located in the spring hole. A butt joint 405 extending to the outside of the spring hole is fixed to the top of each connecting spring 404. The tops of the two butt joints 405 abut against the bottom of the connecting seat 501. The tops of the two butt joints 405 are arc-shaped. Positioning holes are opened on the two connecting plates. A pin shaft 402 is movably connected in the positioning hole. The pin shaft 402 passes through the two positioning holes and penetrates the two connecting plates.

[0026] In this embodiment, when in use, the cylinder 1 drives the replacement component 4 and the supporting mechanism 5 to move upward together. At the same time, the replacement component 4 will drive the two limiting rods 203 to move. The two limiting rods 203 can effectively improve the stability of the replacement component 4.

[0027] See also Figures 1 to 4 and Figures 5 to 8In order to further improve the sealing performance, the supporting mechanism 5 in this embodiment includes a connecting seat 501 extending between the two connecting plates, the connecting seat 501 and the supplementary assembly 4 are hinged by a pin shaft 402, and the two abutting joints 405 are abutted against the bottom of the connecting seat 501, the pin shaft 402 penetrates the connecting seat 501 and is rotatably connected to the connecting seat 501, and a driving motor 502 is fixed to the inner bottom wall of the connecting seat 501, and the driving motor 502 is used to provide stable power for the operation of the supporting mechanism 5, and a protective shell 503 is fixed to the top of the connecting seat 501, and the protective shell 503 plays a protective role, and also plays a limiting role, which can effectively limit the third-level moving assembly 508, thereby indirectly limiting the secondary moving assembly 507 and the primary moving assembly 506, and the output shaft of the driving motor 502 is fixed with an active rod 504, and the active rod 504 includes a primary driving rod and a secondary driving rod, and the primary driving rod is connected to the output shaft of the driving motor 502 The primary driving rod extends into the secondary driving rod and meshes with the inner wall of the secondary driving rod. This structure can ensure that after the bolts between the protective shell 503 and the connecting seat 501 are removed, the protective shell 503 and the parts therein can be removed smoothly. The secondary driving rod penetrates the bottom wall of the protective shell 503 and is rotatably connected to the bottom wall of the protective shell 503 through a bearing. A driving gear 505 is fixed on the outer surface of the secondary driving rod and is located in the protective shell 503. A primary moving component 506 is provided above the driving gear 505, and a secondary moving component 507 is provided on the outer side of the driving gear 505. A tertiary moving component 508 is provided on the outer side of the secondary moving component 507. The outer surfaces of the secondary moving components 507 and the tertiary moving components 508 are both provided with protective components 509. The protective component 509 plays a protective role. When the secondary moving component 507 or the tertiary moving component 508 moves to the top, the power can be smoothly interrupted to avoid damage to the thread caused by continuous hard connection.

[0028] In addition, the first-stage moving component 506 includes a threaded barrel 5061 fixed to the top of the driving gear 505, the outer surface of the threaded barrel 5061 is threadedly connected with a connecting block 5062, and the top of the connecting block 5062 is fixed with a top support plate 5063. The driving gear 505 can drive the threaded barrel 5061 to rotate. Since the connecting block 5062 and the top support plate 5063 have been limited, the connecting block 5062 and the top support plate 5063 can move up smoothly at this time.

[0029] It can be known that the secondary moving component 507 includes multiple transmission threaded rods 5071 rotatably connected to the inner bottom wall of the protective shell 503 through bearings, the transmission threaded rods 5071 are used to transmit rotational force, and when the moving ring 5072 moves to the top, the protection component 509 can play a protective role. The outer surface of each transmission threaded rod 5071 is fixed to the protection component 509, and the outer surfaces of the multiple protection components 509 located on the outside of the transmission threaded rod 5071 are fixed with transmission gears 5073 meshing with the driving gear 505. The outer surfaces of the multiple transmission threaded rods 5071 are threadedly connected to the moving ring 5072 located on the outside of the connecting block 5062, and the multiple transmission threaded rods 5071 form a limiting structure with each other, which can ensure the smooth and stable lifting of the moving ring 5072.

[0030] It should be further explained that the three-stage moving assembly 508 includes a plurality of driven threaded rods 5081 rotatably connected to the inner bottom wall of the protective shell 503 through bearings, the outer surface of each driven threaded rod 5081 is fixed to the protective assembly 509, and the outer surfaces of the plurality of protective assemblies 509 located on the outer surfaces of the driven threaded rods 5081 are fixed with driven gears 5082 meshing with the transmission gear 5073, and the outer surfaces of the plurality of driven threaded rods 5081 are threadedly connected with an outer ring 5083 located on the outer side of the moving ring 5072, and the driven gears 5082 transmit power to the driven threaded rods 5081 through the protective assembly 509. 81, further driving the outer ring 5083 to stably adjust the height, and the T-block 5084 and the T-slot play a limiting role, which can improve the stability of the outer ring 5083. A plurality of T-blocks 5084 are fixed to the outer side of the outer ring 5083, and a plurality of T-slots are provided on the inner side wall of the protective shell 503. The plurality of T-blocks 5084 extend into the plurality of T-slots and are movably connected with the T-slots. A plurality of limiting blocks are fixed to the inner side of the outer ring 5083, and a plurality of limiting slots are provided on the outer side of the movable ring 5072. The plurality of limiting blocks extend into the plurality of limiting slots and are movably connected with the limiting slots. The T-block 5084 and the T-slots The limiting outer ring 5083, the limiting blocks and the limiting grooves are used to limit the moving ring 5072. Finally, the connecting block 5062 and the top support plate 5063 are smoothly limited by the moving blocks and the moving grooves. The outer surfaces of the connecting block 5062 and the top support plate 5063 are provided with a plurality of moving grooves. The inner side of the moving ring 5072 is fixed with a plurality of moving blocks that extend into the plurality of moving grooves and are movably connected to the moving grooves. The protection component 509 is composed of an outer ring 5091, a retaining frame 5092, a plurality of rolling balls 5093 and an inner ring 5094. The inner side of the outer ring 5091 is fixed with a retaining frame 5092, and the retaining frame 5092 is movably connected to the inner side of the moving ring 5072. There are multiple rolling balls 5093 in the dynamic connection, the inner ring 5094 is movably connected with the retaining frame 5092, and the protection component 509 is filled with a damping fluid with a high viscosity coefficient. When the outer ring 5091 rotates, it can smoothly drive the retaining frame 5092 to rotate, and further drive the multiple rolling balls 5093 and the damping fluid to move. The damping fluid has a relatively high friction force. At the same time, the outer surface of the inner ring 5094 is relatively rough. When the damping fluid moves, it can drive the inner ring 5094 to rotate. When it is raised to the highest point, the damping applied to the inner ring 5094 is greater than the friction force of the damping fluid, and the inner ring 5094 remains stationary.

[0031] In addition, the connecting part 6 includes an infusion nozzle 601 fixedly connected to the top of the sterile bag, and a sealing cover 602 is movably connected to the inner side of the infusion nozzle 601. The sealing cover 602 can ensure a good sealing effect during transportation before infusion. The infusion tube 7 includes a stabilizing tube 701 fixedly connected to the output end of the infusion machine, and the bottom of the stabilizing tube 701 is fixedly connected to a connecting tube 702. A plurality of compression springs 703 are fixed to the inner top wall of the connecting tube 702. Through the deformation of the compression springs 703, sufficient moving space is provided for the moving tube 704. At the same time, the elastic force of the compression springs 703 can be transmitted to the moving tube 704, prompting the moving tube 704 to abut against the sterile bag. The bottom of the plurality of compression springs 703 is fixed with a moving tube 704 extending outside the connecting tube 702.

[0032] In this embodiment, the cylinder 1 is used to lift up the replacement component 4 and the supporting mechanism 5 during use. The replacement component 4 can cooperate with the perfusion tube 7 to adaptively adjust the supporting mechanism 5 to ensure sealing.

[0033] It can be understood that the use of the supporting mechanism 5 can effectively fill the gap between the connecting portion 6 and the filling bag, thereby improving the sealing effect, reducing the entry of gas, and effectively improving the quality of the aseptic bag after filling.

[0034] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the present invention is controlled by the controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0035] The working principle of the above embodiment is: (1) When in use, the cylinder 1 lifts up the replacement component 4. Due to the joint action of the limit component 2 and the blocking component 3, the replacement component 4 can be ensured to move stably. When there is a certain angle between the cylinder 1 and the filling machine and the sterile bag is filled, the cylinder 1 will push the replacement component 4 and the supporting mechanism 5 to rise together. In addition, the filling machine will move down with the filling tube 7, thereby smoothly clamping the sterile bag. In addition, due to the action of the connecting spring 404 and the abutment joint 405, combined with the downward pressure of the filling machine, it can be ensured that the supporting mechanism 5 is facing the filling tube 7 at this moment, thereby effectively ensuring the sealing of the sealed bag.

[0036] (2) After the abutment is completed, the driving motor 502 will drive the active rod 504 to rotate, and then drive the active gear 505 to rotate. At this time, the power is synchronously transmitted to the driven gear 5082 through the transmission gear 5073. At this time, the driven threaded rod 5081, the transmission threaded rod 5071 and the threaded cylinder 5061 rotate at the same time, thereby causing the outer ring 5083, the moving ring 5072 and the connecting block 5062 to rise together, successfully blocking the gap between the sealing cover 602 and the supporting mechanism 5, and further improving the sealing effect.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An adaptive top bag mechanism for filling sterile bags, comprising a cylinder (1), characterized in that: The outer surface of the cylinder (1) is provided with a limit assembly (2) for improving the overall stability, the top of the cylinder (1) is provided with a blocking assembly (3) for blocking the limit assembly (2), the limit assembly (2) penetrates the blocking assembly (3), the output end of the cylinder (1) penetrates the blocking assembly (3), a self-adjusting compensation assembly (4) is fixed to the output end of the cylinder (1), the limit assembly (2) penetrates the compensation assembly (4) and is fixed to the compensation assembly (4), a supporting mechanism (5) extending to the outside of the compensation assembly (4) and capable of ensuring sealing is provided inside the compensation assembly (4), a connecting portion (6) for cooperating with the supporting mechanism (5) to press and seal the filling bag is provided above the supporting mechanism (5), the connecting portion (6) is fixedly connected to the filling bag, a filling pipe (7) for filling liquid is provided on the connecting portion (6), and the other end of the filling pipe (7) is fixedly connected to a filling machine.

2. The self-adaptive top bag mechanism for aseptic bag filling according to claim 1, characterized in that: The limiting assembly (2) comprises a U-shaped frame (201) slidably connected to the outer surface of the cylinder (1); the top of the U-shaped frame (201) and the left and right sides of the cylinder (1) are fixedly connected to the limiting sleeve (202); each limiting sleeve (202) is movably connected to a limiting rod (203); each limiting rod (203) extends outside the limiting sleeve (202); each limiting rod (203) located below the limiting sleeve (202) penetrates the U-shaped frame (201) and is fixed to the U-shaped frame (201); and each limiting rod (203) located above the limiting sleeve (202) penetrates the blocking assembly (3) and is fixed to the blocking assembly (3).

3. The self-adaptive top bag mechanism for aseptic bag filling according to claim 2, characterized in that: The blocking assembly (3) comprises a mounting frame (301) fixed to the top of the cylinder (1); two guide shaft sleeves (303) are fixed to the top of the mounting frame (301); four connecting bolts (302) are fixed to the top of the mounting frame (301) and located between the two guide shaft sleeves (303); the mounting frame (301) is fixed to the top of the cylinder (1) via the four connecting bolts (302); the two guide shaft sleeves (303) both penetrate the mounting frame (301); the two limiting rods (203) respectively penetrate the two guide shaft sleeves (303); and the output end of the cylinder (1) penetrates the mounting frame (301).

4. The self-adaptive top bag mechanism for aseptic bag filling according to claim 2, characterized in that: The compensation component (4) comprises a mounting seat (401) fixed to the two limiting rods (203); the bottom of the mounting seat (401) is located between the two limiting rods (203) and is fixed to the output end of the cylinder (1); two spring holes penetrating the mounting seat (401) are provided on the mounting seat (401); a connecting plate is fixed to the top of the mounting seat (401) and located on the left and right sides of the two spring holes; two fixing bolts (403) extending into the two spring holes are fixed to the bottom of the mounting seat (401); a connecting spring (404) is fixed to the top of each fixing bolt (403) and located in the spring hole; an abutment joint (405) extending outside the spring hole is fixed to the top of each connecting spring (404); positioning holes are provided on the two connecting plates; a pin shaft (402) is movably connected in the positioning hole; the pin shaft (402) passes through the two connecting plates through the two positioning holes.

5. The self-adaptive top bag mechanism for aseptic bag filling according to claim 4, characterized in that: The supporting mechanism (5) comprises a connecting seat (501) extending between the two connecting plates, the pin shaft (402) passes through the connecting seat (501) and is rotatably connected to the connecting seat (501), a driving motor (502) is fixed to the inner bottom wall of the connecting seat (501), a protective shell (503) is fixed to the top of the connecting seat (501), an active rod (504) is fixed to the output shaft of the driving motor (502), and the active rod (504) comprises a primary driving rod and a secondary driving rod, the primary driving rod is fixed to the output shaft of the driving motor (502), the primary driving rod extends into the secondary driving rod and is connected to the secondary driving rod. The inner wall of the driving rod is meshed with the inner wall of the driving rod, the secondary driving rod penetrates the bottom wall of the protective shell (503) and is rotatably connected to the bottom wall of the protective shell (503) through a bearing, a driving gear (505) is fixed on the outer surface of the secondary driving rod and is located inside the protective shell (503), a primary moving component (506) is provided above the driving gear (505), a secondary moving component (507) is provided on the outer side of the driving gear (505), a tertiary moving component (508) is provided on the outer side of the secondary moving component (507), and protective components (509) are provided on the outer surfaces of the secondary moving component (507) and the tertiary moving component (508).

6. The self-adaptive top bag mechanism for aseptic bag filling according to claim 5, characterized in that: The primary moving assembly (506) comprises a threaded barrel (5061) fixed to the top of the driving gear (505), a connecting block (5062) being threadedly connected to the outer surface of the threaded barrel (5061), and a top support plate (5063) being fixed to the top of the connecting block (5062).

7. The self-adaptive top bag mechanism for aseptic bag filling according to claim 6, characterized in that: The secondary moving component (507) comprises a plurality of transmission threaded rods (5071) rotatably connected to the inner bottom wall of the protective shell (503) via bearings; the outer surface of each transmission threaded rod (5071) is fixed to the protective component (509); the outer surfaces of the plurality of protective components (509) located outside the transmission threaded rods (5071) are fixed with transmission gears (5073) meshing with the driving gear (505); and the outer surfaces of the plurality of transmission threaded rods (5071) are threadedly connected to a moving ring (5072) located outside the connecting block (5062).

8. The self-adaptive top bag mechanism for aseptic bag filling according to claim 7, characterized in that: The three-stage moving assembly (508) comprises a plurality of driven threaded rods (5081) rotatably connected to the inner bottom wall of the protective shell (503) via bearings, the outer surface of each driven threaded rod (5081) is fixed to the protective assembly (509), the outer surfaces of the plurality of protective assemblies (509) located on the outer surfaces of the driven threaded rods (5081) are fixed with driven gears (5082) meshing with the transmission gear (5073), the outer surfaces of the plurality of driven threaded rods (5081) are threadedly connected with an outer ring (5083) located on the outer side of the moving ring (5072), the outer side of the outer ring (5083) is fixed with a plurality of T-blocks (5084), the inner side wall of the protective shell (503) is provided with a plurality of T-slots, the plurality of T-blocks (5084) respectively extend into the plurality of T-slots and are movably connected to the T-slots, and the inner side of the outer ring (5083) is fixed with a plurality of A plurality of limit blocks are provided on the outer side of the moving ring (5072), and the plurality of limit blocks extend into the plurality of limit grooves and are movably connected to the limit grooves respectively. The outer surfaces of the connecting block (5062) and the top support plate (5063) are both provided with a plurality of moving grooves. A plurality of moving blocks are fixed on the inner side of the moving ring (5072), respectively extend into the plurality of moving grooves and are movably connected to the moving grooves. The protection component (509) is composed of an outer ring (5091), a retaining frame (5092), a plurality of rolling balls (5093) and an inner ring (5094). A retaining frame (5092) is fixed on the inner side of the outer ring (5091), and a plurality of rolling balls (5093) are movably connected in the retaining frame (5092). The inner ring (5094) is movably connected to the retaining frame (5092). The protection component (509) is filled with a damping fluid with a high viscosity coefficient.

9. The self-adaptive top bag mechanism for aseptic bag filling according to claim 1, characterized in that: The connecting portion (6) comprises a filling nozzle (601) fixedly connected to the top of the sterile bag, and a sealing cover (602) is movably connected to the inner side of the filling nozzle (601).

10. The self-adaptive top bag mechanism for aseptic bag filling according to claim 1, characterized in that: The perfusion pipe (7) comprises a stabilizing pipe (701) fixedly connected to the output end of the perfusion machine, the bottom of the stabilizing pipe (701) is fixedly connected to a connecting pipe (702), a plurality of compression springs (703) are fixed to the inner top wall of the connecting pipe (702), and a movable pipe (704) extending outside the connecting pipe (702) is fixed to the bottom of the plurality of compression springs (703).

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