An adaptive bag-top mechanism for aseptic bag filling

Abstract

The present invention relates to a self-adaptive bag-top mechanism for aseptic bag filling, belonging to the technical field of aseptic bag filling. It includes a cylinder, and a limiting component is arranged on the outer surface of the cylinder. A blocking component is arranged at the top of the cylinder. The limiting component penetrates through the blocking component, and the output end of the cylinder penetrates through the blocking component. A compensation component is fixed to the output end of the cylinder. The limiting component penetrates through the compensation component and is fixed to the compensation component. A top support mechanism is arranged in the compensation component. A connecting part is arranged above the top support mechanism. The connecting part is fixedly communicated with the filling bag. A perfusion pipe for pouring liquid is arranged on the connecting part. The other end of the perfusion pipe is fixedly communicated with a perfusion machine. For this self-adaptive bag-top mechanism for aseptic bag filling, the compensation component can provide sufficient support force for the top support mechanism, and can ensure that when the top support mechanism seals the aseptic bag by bag-top, it maintains good fit with the perfusion pipe, effectively improving the sealing performance.

Description

Technical Field

[0001] The present invention relates to the technical field of aseptic bag filling, and specifically provides an adaptive bag-toping mechanism for aseptic bag filling. Background Art

[0002] When using a filling machine for in-box bags in an aseptic box to produce and package products, it is necessary to cut and separate the connected in-box bags that are connected end to end. Then, an aseptic sterilization step is carried out on the filling nozzle for liquid material filling of the aseptic bag. Subsequently, steps such as opening, filling, sealing, and sending out are carried out on the filling nozzle in an aseptic space to complete the filling work of the in-box bag. Due to the existing aseptic bag filling technology, inevitably, during the period from when the filling nozzle is opened to when it is sealed, the positive-pressure air in the filling space will enter the in-box bag, causing a large amount of air to enter and remain inside the aseptic bag during the filling process. Therefore, a bag-toping mechanism is required to ensure the sealing performance.

[0003] For example, Chinese Patent (Publication No.: CN103910096A) discloses an automatic bag-loading filling machine for aseptic small bags. The filling machine 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. 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 being disinfected by the disinfection mechanism, the aseptic bag is pushed by the bag-feeding mechanism along the guiding mechanism to the bag-cutting mechanism. After being cut by the bag-cutting mechanism, the aseptic bag is continuously sent by the bag-feeding mechanism to the filling head mechanism. Before entering the filling head mechanism, the aseptic bag is sterilized by the steam sterilization mechanism. The aseptic bag is filled at the filling head mechanism. The bag-feeding mechanism returns to the disinfection mechanism to continue pushing the aseptic bag. The filled aseptic bag 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, easy operation, etc.

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

[0005] Aiming at the deficiencies of the prior art, the present invention provides an adaptive bag-toping mechanism for aseptic bag filling, which has the advantages of strong sealing performance and solves the problem of insufficient sealing.

[0006] To achieve the above object, the present invention provides the following technical solution: a sterile bag filling adaptive bag-top mechanism, including a cylinder, the outer surface of the cylinder is provided with a limiting component for improving the overall stability, the top of the cylinder is provided with a blocking component for blocking the limiting component, the limiting component penetrates through the blocking component, the output end of the cylinder penetrates through the blocking component, the output end of the cylinder is fixed with a compensation component capable of adaptive adjustment, the limiting component penetrates through the compensation component and is fixed to the compensation component, the compensation component is internally provided with a top support mechanism extending outside the compensation component and capable of ensuring the sealing performance, above the top support mechanism is provided with a connecting part for cooperating with the top support mechanism to press and seal the filling bag, the connecting part is fixedly communicated with the filling bag, the connecting part is provided with a perfusion pipe for pouring liquid, and the other end of the perfusion pipe is fixedly communicated with a perfusion machine;

[0007] The limiting component includes a U-shaped frame slidably connected to the outer surface of the cylinder. The top of the U-shaped frame and on the left and right sides of the cylinder are fixedly communicated with limiting sleeves. Each limiting sleeve is movably connected with a limiting rod. Each limiting rod extends outside the limiting sleeve. Each limiting rod located below the limiting sleeve penetrates through the U-shaped frame and is fixed to the U-shaped frame. Each limiting rod located above the limiting sleeve penetrates through the blocking component and is fixed to the blocking component;

[0008] The compensation component includes a mounting seat fixed to the two limiting rods. The bottom of the mounting seat and between the two limiting rods is fixed to the output end of the cylinder. Two spring holes penetrating through the mounting seat are opened on the mounting seat. The top of the mounting seat and on the left and right sides of the two spring holes are fixed with connecting plates. The bottom of the mounting seat is fixed with two set bolts respectively extending into the two spring holes. The top of each set bolt and within the spring hole is fixed with a connecting spring. The top of each connecting spring is fixed with an abutting head extending outside the spring hole. Positioning holes are opened on the two connecting plates. A pin shaft is movably connected within the positioning holes. The pin shaft penetrates through the two connecting plates through the two positioning holes;

[0009] The top support mechanism includes a connecting seat extending between two connecting plates. The pin shaft penetrates through the connecting seat and is rotatably connected to the connecting seat. A driving motor is fixed on the inner bottom wall of the connecting seat, and a protective shell is fixed on the top of the connecting seat. The output shaft of the driving motor is fixed with a driving rod, and the driving rod includes a first-level driving rod and a second-level driving rod. The first-level driving rod is fixed to the output shaft of the driving motor. The first-level driving rod extends into the second-level driving rod and meshes with the inner wall of the second-level driving rod. The second-level driving rod penetrates through 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 second-level driving rod and inside the protective shell. Above the driving gear, there is a first-level moving component. Outside the driving gear, there is a second-level moving component. Outside the second-level moving component, there is a third-level moving component. Protective components are arranged on the outer surfaces of the second-level moving component and the third-level moving component.

[0010] Further, the blocking component includes a mounting bracket fixed to the top of the air cylinder. Two guide bushings are fixed to the top of the mounting bracket. Four connecting bolts are fixed between the two guide bushings on the top of the mounting bracket. The mounting bracket is fixed to the top of the air cylinder through the four connecting bolts. Both of the two guide bushings penetrate through the mounting bracket. The two limiting rods respectively penetrate through the two guide bushings. The output end of the air cylinder penetrates through the mounting bracket.

[0011] Further, the first-level moving component includes a threaded cylinder fixed to the top of the driving gear. A connecting block is threadedly connected to the outer surface of the threaded cylinder. A top support plate is fixed to the top of the connecting block.

[0012] Further, the second-level 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 transmission threaded rod is fixed to the protective component. Transmission gears meshing with the driving gear are fixed to the outer surfaces of the plurality of protective components located outside the transmission threaded rods. A moving ring located outside the connecting block is threadedly connected to the outer surfaces of the plurality of transmission threaded rods.

[0013] Further, 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 protection component. The outer surfaces of the plurality of protection components located on the outer surface of the driven threaded rod are all fixed with driven gears meshing with the transmission gear. The outer surfaces of the plurality of driven threaded rods are thread - connected with an outer ring located outside the moving ring. A plurality of T - shaped blocks are fixed to the outer side of the outer ring. A plurality of T - shaped grooves are formed in the inner side wall of the protective shell. The plurality of T - shaped blocks respectively extend into the plurality of T - shaped grooves and are movably connected to the T - shaped grooves. A plurality of limiting blocks are fixed to the inner side of the outer ring. A plurality of limiting grooves are formed in the outer side of the moving ring. The plurality of limiting blocks respectively extend into the plurality of limiting grooves and are movably connected to the limiting grooves. A plurality of moving grooves are formed in the outer surfaces of the connecting block and the top - supporting plate. A plurality of moving blocks are fixed to the inner side of the moving ring and respectively extend into the plurality of moving grooves and are movably connected to the moving grooves. The protection component is composed of an outer layer ring, a cage, a plurality of rolling balls and an inner layer ring. The inner side of the outer layer ring is fixed with a cage. A plurality of rolling balls are movably connected in the cage. The inner layer ring is movably connected to the cage. The protection component is filled with a damping liquid with a high viscosity coefficient.

[0014] Further, the connecting part includes a perfusion nozzle fixedly communicated with the top of the sterile bag, and a sealing cover is movably connected to the inner side of the perfusion nozzle.

[0015] Further, the perfusion tube includes a stabilizing tube fixedly communicated with the output end of the perfusion machine. The bottom of the stabilizing tube is fixedly communicated with a connecting tube. A plurality of compression springs are fixed to the inner top wall of the connecting tube. The bottoms of the plurality of compression springs are fixed with a moving tube extending outside the connecting tube.

[0016] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0017] 1. For this self - adapting bag - topping mechanism for sterile bag filling, the supplementary positioning component can provide sufficient supporting force for the bag - topping mechanism, and can ensure that when the bag - topping mechanism tops and seals the sterile bag, it has a good fit with the perfusion tube, effectively improving the sealing performance.

[0018] 2. For this self - adapting bag - topping mechanism for sterile bag filling, due to the structural limitations of the connecting part itself, there may inevitably be air residues at the connection between the connecting part and the sterile bag, while the bag - topping mechanism can effectively top this part, thus effectively improving the overall sealing performance.

[0019] 3. For this self - adapting bag - topping mechanism for sterile bag filling, the perfusion tube has good flexibility, can better adapt to the bag - topping mechanism, effectively improving the sealing performance, and the protection component can provide good protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Structural schematic diagram of the present invention;

[0021] Figure 2 Stereo explosion diagram of the present invention;

[0022] Figure 3 Connection relationship diagram of the top support mechanism and the connection part of the present invention;

[0023] Figure 4 Connection relationship diagram of the connection part and the perfusion pipe of the present invention;

[0024] Figure 5 Structural schematic diagram of the top support mechanism of the present invention;

[0025] Figure 6 Stereo cross-sectional view of the protection component of the present invention;

[0026] Figure 7 Stereo explosion diagram of the protection component of the present invention;

[0027] Figure 8 For the present invention Figure 4 Enlarged view at position A in

[0028] In the figure: 1 cylinder, 2 limit component, 201 U-shaped frame, 202 limit sleeve, 203 limit rod, 3 blocking component, 301 mounting frame, 302 connecting bolt, 303 guide bushing, 4 compensation component, 401 mounting seat, 402 pin shaft, 403 set screw, 404 connecting spring, 405 abutting head, 5 top support mechanism, 501 connecting seat, 502 driving motor, 503 protective shell, 504 driving rod, 505 driving gear, 506 primary moving component, 5061 threaded cylinder, 5062 connecting block, 5063 top support plate, 507 secondary moving component, 5071 driving threaded rod, 5072 moving ring, 5073 driving gear, 508 tertiary moving component, 5081 driven threaded rod, 5082 driven gear, 5083 outer ring, 5084 T-shaped block, 509 protection component, 5091 outer ring, 5092 cage, 5093 rolling ball, 5094 inner ring, 6 connecting part, 601 perfusion nozzle, 602 sealing cover, 7 perfusion pipe, 701 stabilizing pipe, 702 connecting pipe, 703 compression spring, 704 moving pipe. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer toFigures 1 to 4 , an adaptive bag - topping mechanism for aseptic bag filling in this embodiment includes 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 at the top of the cylinder 1. The limiting component 2 penetrates through the blocking component 3. The output end of the cylinder 1 penetrates through the blocking component 3. A compensating component 4 capable of adaptive adjustment is fixed to the output end of the cylinder 1. The limiting component 2 penetrates through the compensating component 4 and is fixed to the compensating component 4. A top - supporting mechanism 5 extending outside the compensating component 4 and capable of ensuring the sealing property is provided inside the compensating component 4. Above the top - supporting mechanism 5, there is a connecting part 6 for cooperating with the top - supporting mechanism 5 to press - hold and seal the filling bag. The connecting part 6 is fixedly connected and communicated with the filling bag. A perfusion pipe 7 for pouring liquid is provided on the connecting part 6. The other end of the perfusion pipe 7 is fixedly connected and communicated with a perfusion machine.

[0031] In addition, the limiting component 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 outside the cylinder 1 and can move freely, thus effectively improving the overall stability. At the top of the U - shaped frame 201 and on both the left and right sides of the cylinder 1, limiting sleeves 202 are fixedly connected and communicated. A limiting rod 203 is movably connected inside each limiting sleeve 202. Each limiting rod 203 extends outside the limiting sleeve 202. Each limiting rod 203 located below the limiting sleeve 202 penetrates through the U - shaped frame 201 and is fixed to the U - shaped frame 201. Each limiting rod 203 located above the limiting sleeve 202 penetrates through the blocking component 3 and is fixed to the blocking component 3. Two through - holes are provided on the U - shaped frame 201. The front side of the U - shaped frame 201 is in an open shape, and the open shape extends into the through - holes and is connected to the through - holes. The sizes of the openings at both openings are controlled by bolts. This structure can ensure the connection stability between the U - shaped frame 201 and the limiting rod 203. At the same time, by rotating the bolts, the size of the opening can be smoothly adjusted, so that the relative distance between the U - shaped frame 201 and the limiting rod 203 can be effectively adjusted.

[0032] It can be known that the blocking component 3 includes a mounting frame 301 fixed to the top of the cylinder 1. Two guide bushings 303 are fixed to the top of the mounting frame 301. The two guide bushings 303 can effectively improve the stability of the two limiting rods 203. Four connecting bolts 302 are fixed to the top of the mounting frame 301 and between the two guide bushings 303. The four connecting bolts 302 play a connecting role 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 through the four connecting bolts 302. Both guide bushings 303 penetrate through the mounting frame 301. The two limiting rods 203 respectively penetrate through the two guide bushings 303. The output end of the cylinder 1 penetrates through the mounting frame 301. The mounting frame 301 is used to block the limiting sleeve 202, thereby effectively limiting the extending length of the cylinder 1.

[0033] It should be further noted that the filling 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 and between the two limiting rods 203 is fixed to the output end of the cylinder 1. Two spring holes penetrating through the mounting seat 401 are formed on the mounting seat 401. Connecting plates are fixed on the left and right sides of the two spring holes at the top of the mounting seat 401. Two set bolts 403 respectively extending into the two spring holes are fixed to the bottom of the mounting seat 401. The set bolts 403 play a supporting role. A connecting spring 404 is fixed to the top of each set bolt 403 and located within the spring hole. The top of each connecting spring 404 is fixed with an abutting head 405 extending outside the spring hole. The tops of the two abutting heads 405 are in contact with the bottom of the connecting seat 501. The tops of the two abutting heads 405 are both arc-shaped. Positioning holes are formed on the two connecting plates. A pin shaft 402 is movably connected within the positioning holes. The pin shaft 402 penetrates through the two connecting plates through the two positioning holes.

[0034] In this embodiment, during use, the cylinder 1 drives the filling component 4 and the top support mechanism 5 to move upward together. At the same time, the filling component 4 drives the two limiting rods 203 to move, and the two limiting rods 203 can effectively improve the stability of the filling component 4.

[0035] Please refer to Figures 1 to 4 and Figures 5 to 8, in order to further improve the sealing performance, the top support mechanism 5 in this embodiment includes a connecting seat 501 extending between the two connecting plates. The connecting seat 501 is hinged to the compensation component 4 through a pin shaft 402. At the same time, the two abutting heads 405 abut against the bottom of the connecting seat 501. The pin shaft 402 penetrates through the connecting seat 501 and is rotatably connected to the connecting seat 501. A driving motor 502 is fixed on the inner bottom wall of the connecting seat 501. The driving motor 502 is used to provide stable power for the operation of the top support mechanism 5. A protective shell 503 is fixed on the top of the connecting seat 501. The protective shell 503 plays a protective role and also a limiting role. It can effectively limit the three-stage moving component 508, thereby indirectly limiting the two-stage moving component 507 and the one-stage moving component 506. The output shaft of the driving motor 502 is fixed with a driving rod 504. The driving rod 504 includes a one-stage driving rod and a two-stage driving rod. The one-stage driving rod is fixed to the output shaft of the driving motor 502. The one-stage driving rod extends into the two-stage driving rod and meshes with the inner wall of the two-stage driving rod. This structure can ensure that when the bolt between the protective shell 503 and the connecting seat 501 is removed, the protective shell 503 and the parts inside it can be smoothly removed. The two-stage driving rod penetrates through 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 two-stage driving rod and inside the protective shell 503. Above the driving gear 505 is provided with a one-stage moving component 506. Outside the driving gear 505 is provided with a two-stage moving component 507. Outside the two-stage moving component 507 is provided with a three-stage moving component 508. Protective components 509 are provided on the outer surfaces of the two-stage moving component 507 and the three-stage moving component 508. The protective components 509 play a protective role. When the two-stage moving component 507 or the three-stage moving component 508 moves to the uppermost position, the power can be smoothly interrupted to avoid damage to the threads caused by continuous hard connection.

[0036] In addition, the one-stage moving component 506 includes a threaded cylinder 5061 fixed to the top of the driving gear 505. A connecting block 5062 is threadedly connected to the outer surface of the threaded cylinder 5061. A top support plate 5063 is fixed to the top of the connecting block 5062. The driving gear 505 can drive the threaded cylinder 5061 to rotate. Since the connecting block 5062 and the top support plate 5063 have been limited, at this time, the connecting block 5062 and the top support plate 5063 can move upward smoothly.

[0037] It can be known that the secondary moving component 507 includes a plurality of driving threaded rods 5071 rotatably connected to the inner bottom wall of the protective case 503 through bearings. The driving threaded rods 5071 are used to transmit rotational force. When the moving ring 5072 moves to the uppermost position, the protection component 509 can play a protective role. The outer surface of each driving threaded rod 5071 is fixed to the protection component 509. The outer surfaces of a plurality of protection components 509 located outside the driving threaded rod 5071 are all fixed with driving gears 5073 meshing with the driving gear 505. The outer surfaces of the plurality of driving threaded rods 5071 are threadedly connected with a moving ring 5072 located outside the connecting block 5062. The plurality of driving threaded rods 5071 form a limiting structure with each other, which can ensure the smooth and stable lifting of the moving ring 5072.

[0038] It should be further noted that the three - level moving component 508 includes a plurality of driven threaded rods 5081 rotatably connected to the inner bottom wall of the protective case 503 through bearings. The outer surface of each driven threaded rod 5081 is fixed to the protection component 509. The outer surfaces of a plurality of protection components 509 located on the outer surface of the driven threaded rod 5081 are all fixed with driven gears 5082 meshing with the transmission gear 5073. The outer surfaces of a plurality of driven threaded rods 5081 are thread - connected with an outer ring 5083 located outside the moving ring 5072. The driven gear 5082 transmits power to the driven threaded rod 5081 through the protection component 509, further driving the outer ring 5083 to stably adjust its height. And the T - shaped blocks 5084 and the T - shaped grooves play a limiting role, which can improve the stability of the outer ring 5083. A plurality of T - shaped blocks 5084 are fixed to the outer side of the outer ring 5083, and a plurality of T - shaped grooves are formed in the inner side wall of the protective case 503. A plurality of T - shaped blocks 5084 respectively extend into a plurality of T - shaped grooves and are movably connected to the T - shaped grooves. A plurality of limiting blocks are fixed to the inner side of the outer ring 5083, and a plurality of limiting grooves are formed in the outer side of the moving ring 5072. A plurality of limiting blocks respectively extend into a plurality of limiting grooves and are movably connected to the limiting grooves. The T - shaped blocks 5084 and the T - shaped grooves limit the outer ring 5083, and the limiting blocks and the limiting grooves are used to limit the moving ring 5072. Finally, the connecting block 5062 and the top - supporting plate 5063 are smoothly limited through the moving blocks and the moving grooves. A plurality of moving grooves are formed on the outer surfaces of the connecting block 5062 and the top - supporting plate 5063. A plurality of moving blocks are fixed to the inner side of the moving ring 5072, and the moving blocks respectively extend into a plurality of moving grooves and are movably connected to the moving grooves. The protection component 509 is composed of an outer ring 5091, a cage 5092, a plurality of rolling balls 5093 and an inner ring 5094. The cage 5092 is fixed to the inner side of the outer ring 5091. A plurality of rolling balls 5093 are movably connected in the cage 5092. The inner ring 5094 is movably connected to the cage 5092. The protection component 509 is filled with a damping liquid with a high viscosity coefficient. When the outer ring 5091 rotates, it can smoothly drive the cage 5092 to rotate, further driving a plurality of rolling balls 5093 and the damping liquid to move. The damping liquid has a high friction force. At the same time, the outer surface of the inner ring 5094 is relatively rough. When the damping liquid moves, it can drive the inner ring 5094 to rotate. When it rises to the highest position, at this time, the damping force received by the inner ring 5094 is greater than the friction force of the damping liquid, and at this time, the inner ring 5094 remains stationary.

[0039] In addition, the connecting portion 6 includes a perfusion nozzle 601 fixedly connected to the top of the sterile bag. A sealing cover 602 is movably connected to the inner side of the perfusion nozzle 601. The sealing cover 602 can ensure good sealing during transportation before perfusion. The perfusion tube 7 includes a stable tube 701 fixedly connected to the output end of the perfusion machine. A connecting tube 702 is fixedly connected to the bottom of the stable tube 701. 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 bottoms of the plurality of compression springs 703 are fixed with a moving tube 704 extending outside the connecting tube 702.

[0040] In this embodiment, when in use, the cylinder 1 jacks up the compensating component 4 and the top support mechanism 5. The compensating component 4 can cooperate with the perfusion tube 7 to adaptively adjust the top support mechanism 5, thereby ensuring the sealing performance.

[0041] It can be understood that using the top support 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 sterile bag after filling.

[0042] The electrical components mentioned in the text are all electrically connected to the controller and the power supply. The control mode of the present invention is controlled by the controller. The control circuit of the controller can be realized by simple programming of those skilled in the art. The provision of the power supply also belongs to the common knowledge in the art. And the present invention is mainly used to protect mechanical devices, so the control mode and circuit connection of the present invention will not be explained in detail.

[0043] The working principle of the above embodiment is as follows:

[0044] (1) When in use, the cylinder 1 jacks up the compensating component 4. Due to the combined action of the limiting component 2 and the blocking component 3, it can ensure the stable movement of the compensating component 4. When there is a certain angle between the cylinder 1 and the perfusion machine and filling the sterile bag, the cylinder 1 will push the compensating component 4 and the top support mechanism 5 to rise together. In addition, the perfusion machine will drive the perfusion tube 7 to move downward, so as to smoothly clamp the sterile bag. And due to the action of the connecting spring 404 and the abutting head 405, cooperating with the downward pressure of the perfusion machine, it can ensure that the top support mechanism 5 is directly opposite to the perfusion tube 7 at this moment, thereby effectively ensuring the sealing performance of the sealing bag.

[0045] After the abutment is completed, the drive motor 502 drives the drive rod 504 to rotate, driving the drive 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 simultaneously, 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 top support mechanism 5, and further improving the sealing effect.

[0046] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0047] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these 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); the other end of the filling pipe (7) is fixedly connected to a filling machine; 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); each limiting rod (203) located above the limiting sleeve (202) penetrates the blocking assembly (3) and is fixed to the blocking assembly (3); 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 to the outside of 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; 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).

2. The self-adaptive top bag mechanism for aseptic bag filling according to claim 1, 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).

3. The self-adaptive top bag mechanism for aseptic bag filling according to claim 1, 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).

4. The self-adaptive top bag mechanism for aseptic bag filling according to claim 3, 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).

5. The self-adaptive top bag mechanism for aseptic bag filling according to claim 4, 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.

6. 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).

7. 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).

Images