Beverage filling device for sterile filling and filling method thereof

Abstract

The invention relates to the technical field of filling equipment, and discloses a beverage filling device for sterile filling and a filling method.The beverage filling device for sterile filling comprises a main cylinder and a supporting rod in the main cylinder, a sealing ring is fixedly installed at the bottom end of the supporting rod, a filling base plate is arranged at the bottom end of the main cylinder, and a sealing ring is fixedly installed at the bottom end of the sealing ring; a closing frame is installed on the lower surface of the filling base plate and comprises an elastic rubber sleeve, a supporting inner ring, a rotating ring, an elastic belt and a rolling shaft, the supporting inner ring is arranged on the bottom face of the filling base plate, and the elastic rubber sleeve located on the lower surface of the filling base plate is installed in the supporting inner ring. According to the sterile filling device, through the closing-in operation of the elastic rubber barrel, the effect of isolating the filling base plate from external air can be achieved, the situation that the filling base plate makes contact with the external air before filling is further reduced, the situation that the filling base plate makes contact with bacteria in the external air is avoided, and therefore the sterile filling function is achieved, and the sanitation degree during filling is improved.

Description

Technical Field

[0001] The invention relates to the technical field of filling equipment, in particular to a beverage filling device for aseptic filling and a filling method thereof. Background Art

[0002] Filling equipment is mainly a small category of packaging machines. From the perspective of material packaging, it can be divided into liquid filling machines, paste filling machines, powder filling machines, and granule filling machines; from the perspective of the degree of production automation, it can be divided into semi-automatic filling equipment and fully automatic filling production lines.

[0003] However, in combination with the actual production process, we found that the filling heads of existing filling equipment (such as the beverage filling equipment disclosed in the patent document with publication number CN119160842A, and the beverage filling device disclosed in the patent document with publication number CN220393292U) are exposed to the air after a single filling is completed, but the bacteria in the air are easy to attach to the filling heads. Therefore, in the aseptic operation standards, this kind of filling head cannot meet the aseptic filling conditions; therefore, it does not meet the needs of existing production. In this regard, we propose a beverage filling device for aseptic filling and a filling method thereof. Summary of the invention

[0004] The present invention provides a beverage filling device and a filling method for aseptic filling, which have the beneficial effect of aseptic installation and solve the problem that the filling head of the existing filling equipment mentioned in the above background technology is exposed to the air after a single filling is completed, but bacteria are easily present in the air and attached to the filling head. Therefore, in the aseptic operation standard, this filling head cannot meet the aseptic filling conditions.

[0005] The present invention provides the following technical solutions: a beverage filling device for aseptic filling and a filling method thereof, wherein a beverage filling device for aseptic filling comprises a main barrel and a support rod in the main barrel, a sealing ring is fixedly installed at the bottom end of the support rod, a filling bottom plate is provided at the bottom end of the main barrel, a closing frame is installed on the lower surface of the filling bottom plate, and the closing frame comprises an elastic rubber barrel, a supporting inner ring, a rotating ring, an elastic band and a roller;

[0006] The bottom surface of the filling chassis is provided with a supporting inner ring, and an elastic rubber cylinder located on the lower surface of the filling chassis is installed inside the supporting inner ring;

[0007] A rotating ring is rotatably mounted on the inner wall of the supporting inner ring, an elastic band is fixedly mounted on the inner side of the rotating ring, and a roller is arranged on one side of the elastic band;

[0008] A nozzle is arranged at the bottom end of the filling bottom plate.

[0009] As an optional solution of the beverage filling device for aseptic filling of the present invention, wherein: a pressure mouth structure is also slidably installed on the outer side of the main barrel, and the pressure mouth structure includes a driving sleeve, a limiting vertical groove and a limiting pin; a driving sleeve is slidably installed on the outer surface of the main barrel, and the limiting vertical grooves are symmetrically arranged inside the driving sleeve, and limiting pins located on both sides of the main barrel are also installed inside the limiting vertical grooves, and the limiting pins are used to provide limiting conditions for the driving sleeve;

[0010] The closing frame also includes a limiting groove, a top ring and a limiting tube;

[0011] The inner side of the driving sleeve is provided with an annular array of limiting grooves, and the outer side of the elastic band is rotatably mounted with a roller, the roller is used to slide in the limiting groove and provide rotational power to the rotating ring, and the limiting groove is a spiral structure;

[0012] A limit tube is fixedly installed on the top of the elastic rubber tube, and a top ring is slidably installed inside the limit tube, and the top of the top ring is used to be fixed on the lower surface of the filling bottom plate;

[0013] The limiting tube and the top ring are used to support the elastic rubber cylinder to achieve the rotation effect of the upper half.

[0014] As an optional solution of the beverage filling device for aseptic filling of the present invention, wherein: the pressure mouth structure also includes a contact rubber ring, an elastic bracket, a soft rubber end and a third spring;

[0015] A contact rubber ring is fixedly installed at the bottom end of the driving tube sleeve, and elastic brackets are arranged in a ring shape at the bottom end of the inner wall of the driving tube sleeve. A soft rubber end is fixedly installed at the top of the elastic bracket. The elastic bracket is used to provide a sealing function for the elastic rubber tube, and a third spring is installed at the top of the driving tube sleeve.

[0016] As an optional solution of the beverage filling device for aseptic filling of the present invention, wherein: the support rod comprises a supporting main shaft, a movable shaft and an inner cavity;

[0017] A supporting main shaft is slidably installed inside the main cylinder, a movable shaft is installed inside the supporting main shaft, an inner cavity is also provided inside the supporting main shaft, and the bottom end of the movable shaft is used to be fixed with a sealing ring.

[0018] As an optional solution of the beverage filling device for aseptic filling of the present invention, wherein: a rebound mechanism is installed at the top end of the movable shaft, and the rebound mechanism includes a first spring and a pin cone;

[0019] A first spring located in the inner cavity is installed on the outer side of the movable shaft, and the movable shaft is used for sliding and retracting inside the inner cavity.

[0020] As an optional solution of the beverage filling device for aseptic filling of the present invention, wherein: the rebound mechanism further includes a push rod, a second spring, a cross rod and a support pin seat;

[0021] A top rod is slidably installed inside the movable shaft, a cross bar is symmetrically installed at the top of the movable shaft, a pin cone is provided at one end of the cross bar, a second spring is installed on the outside of the cross bar, and a support pin seat located at the top of the movable shaft is sleeved on the outside of the cross bar, and the support pin seat is used to provide lateral sliding conditions for the cross bar.

[0022] As an optional solution of the beverage filling device for aseptic filling of the present invention, wherein: side grooves are provided on both sides of the mandrel, and pulleys located on the upper surface of the movable shaft are symmetrically installed inside the side grooves;

[0023] A cable is installed at one end of the crossbar, and the cable extends along the outer side of the pulley to the upper end of the top rod;

[0024] An inner groove is provided on the inner wall of the inner cavity, and the pin cone is used to be inserted in the inner groove.

[0025] As an optional solution of the beverage filling device for aseptic filling of the present invention, wherein: a linkage sealer is also installed inside the main barrel, the linkage sealer includes an annular inner cavity, an elastic rubber ring, a first tube groove, a second tube groove and an elastic airbag, the inner wall of the main barrel is provided with an annular inner cavity, an elastic rubber ring is installed on the outer side of the annular inner cavity, and the lower end of the annular inner cavity is provided with a first tube groove located in the main barrel;

[0026] The inner wall of the filling chassis is provided with a second tube groove located at one end of the first tube groove, an elastic airbag is fixedly installed on the inner wall of the nozzle, the other end of the second tube groove is connected to the elastic airbag, the interior of the annular cavity is filled with liquid, and the elastic airbag is used to provide a sealing effect for the nozzle.

[0027] As an optional solution of the beverage filling device for aseptic filling of the present invention, wherein: the sealing ring comprises a piston, a sealing rubber edge, a leak hole, a one-way sealing plate and an elastic rib;

[0028] A piston is provided at the bottom end of the movable shaft, a sealing rubber edge is fixedly installed on the outer side of the piston, a leak hole is arranged in a ring array inside the piston, a one-way sealing plate is provided at the bottom end of the leak hole, and an elastic rib is provided on the lower surface of the one-way sealing plate, and the elastic rib is used to provide the upward elasticity of the one-way sealing plate;

[0029] A support frame is fixedly installed on the top of the main cylinder, a driving cylinder is fixedly installed on the top of the support frame, and a liquid inlet pipe is provided on one side of the main cylinder.

[0030] The present invention also provides a filling method of a beverage filling device for aseptic filling, which specifically comprises the following steps.

[0031] S1. Elastic rubber tube sealing: When the driving tube sleeve falls, multiple rollers move along the spiral track of the limit groove to form a rotating force, which acts on the rotating ring. Through the connection between the rotating ring and the elastic belt, the rotating ring will rotate to form a rotating closing operation on the side waist of the elastic rubber tube, so that the waist area of ​​the elastic rubber tube is in an inward state, and the inward state is normal. The elasticity of the elastic rubber tube completes the sealing function;

[0032] S2, elastic rubber cylinder unsealing: when the main cylinder falls, the filling bottle mouth will be against the inclined position below the elastic rubber cylinder. Through the continuous falling of the main cylinder, the filling bottle mouth will push open the inclined part below the elastic rubber cylinder and extend to the lower position of the linkage sealer;

[0033] At this time, the main cylinder continues to fall, causing the driving sleeve to rise, causing the rotating ring to rotate in the opposite direction to the previous one. The spiral track of the roller and the elastic bracket will drive the rotating ring to rotate, causing the elastic rubber tube to expand outward from the closed state to form a cylindrical shape, and release the sealing state inside the elastic rubber tube, completing the closing and expanding action;

[0034] S3, the sealing ring rebounds at the extreme position: the rebound supports the main shaft to fall, driving the sealing ring to fall as a whole. When the sealing ring falls to the bottom of the inner cavity, the single filling volume is completed. At this time, the bottom end of the push rod will contact the bottom end of the inner cavity and lift the push rod, so that the top end of the push rod drives the cable to pull the cross bar through the pulley, and the pin cone is pulled out of the inner groove, so that the movable shaft drives the sealing ring to bounce upward as a whole, providing a short negative pressure suction force to the space below the sealing ring, so that the filling material inside the nozzle moves upward for a distance, away from the nozzle outlet;

[0035] S4. Sealing ring reset: When the sealing ring rises, it will flow along the leak hole to the lower position of the sealing ring, and there is resistance when the filling material flows through the leak hole. This resistance can drive the sealing ring to fall, so that the pin cone at the top of the movable shaft is stuck in the inner groove, completing the reset, which is convenient for subsequent circulation operations.

[0036] The present invention has the following beneficial effects:

[0037] 1. The beverage filling device for aseptic filling can provide the effect of isolating the filling bottom plate from the outside air through the closing operation of the elastic rubber cylinder, further reducing the contact of the filling bottom plate with the outside air before filling, avoiding contact with bacteria in the outside air, thereby realizing the function of aseptic filling, improving the sanitation level during filling, and facilitating operation.

[0038] 2. The beverage filling device for aseptic filling can be combined with the above-mentioned beneficial effects through the specific structure of the closing frame and the setting of its filling method, so that the filling bottom plate can avoid the occurrence of dripping in a closed environment, and can greatly reduce the neat effect after the nozzle completes the filling, thereby realizing the aseptic filling environment and filling operation of the device, realizing the original intention of the design of the present invention, and it has been verified that it better achieves the desired purpose of the research and development design. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0040] Figure 2 It is a schematic diagram of the internal structure of the main cylinder of the present invention.

[0041] Figure 3 For the present invention Figure 2 Schematic diagram of the local structure at point A.

[0042] Figure 4 It is a schematic diagram of the internal structure of the sealing ring of the present invention.

[0043] Figure 5 It is a schematic diagram of the internal structure of the supporting spindle of the present invention.

[0044] In the figure: 1, main cylinder; 2, support rod; 21, support main shaft; 22, movable shaft; 23, inner cavity; 3, sealing ring; 31, piston; 32, sealing rubber edge; 33, leak hole; 34, one-way sealing plate; 35, elastic rib; 4, rebound mechanism; 41, push rod; 42, first spring; 43, pin cone; 44, second spring; 45, cross bar; 46, support pin seat; 47, cable; 48, inner groove; 5, closing frame; 51, elastic rubber cylinder; 52, support inner ring; 53, swivel; 54 , elastic belt; 55, roller; 56, limit groove; 57, top ring; 58, limit tube; 6, pressure mouth structure; 61, drive tube sleeve; 62, limit vertical groove; 63, limit pin; 64, contact rubber ring; 65, elastic bracket; 66, soft rubber end; 67, third spring; 7, linkage sealer; 71, annular inner cavity; 72, elastic rubber ring; 73, first tube groove; 74, second tube groove; 75, elastic airbag; 8, filling chassis; 91, drive cylinder; 92, support frame; 93, liquid inlet pipe. DETAILED DESCRIPTION

[0045] 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.

[0046] Example 1

[0047] See also Figure 1-Figure 5 The present invention discloses a beverage filling device for aseptic filling, comprising a main barrel 1 and a support rod 2 in the main barrel 1, a sealing ring 3 is fixedly installed at the bottom end of the support rod 2, a filling bottom plate 8 is provided at the bottom end of the main barrel 1, a closing frame 5 is installed on the lower surface of the filling bottom plate 8, and the closing frame 5 comprises an elastic rubber barrel 51, a supporting inner ring 52, a rotating ring 53, an elastic band 54 and a roller 55;

[0048] The bottom surface of the filling bottom plate 8 is provided with a supporting inner ring 52, and an elastic rubber cylinder 51 located on the lower surface of the filling bottom plate 8 is installed inside the supporting inner ring 52;

[0049] A rotating ring 53 is rotatably mounted on the inner wall of the supporting inner ring 52, an elastic band 54 is fixedly mounted on the inner side of the rotating ring 53, and a roller 55 is arranged on one side of the elastic band 54;

[0050] A nozzle is provided at the bottom end of the filling chassis 8;

[0051] A pressure-mouth structure 6 is also slidably mounted on the outer side of the main tube 1. The pressure-mouth structure 6 includes a driving sleeve 61, a limiting vertical groove 62 and a limiting pin 63. The driving sleeve 61 is slidably mounted on the outer surface of the main tube 1. The limiting vertical grooves 62 are symmetrically arranged inside the driving sleeve 61. Limiting pins 63 located on both sides of the main tube 1 are also installed inside the limiting vertical grooves 62. The limiting pins 63 are used to provide limiting conditions for the driving sleeve 61.

[0052] The closing frame 5 also includes a limiting groove 56, a top ring 57 and a limiting tube 58;

[0053] The inner side of the driving sleeve 61 is provided with a ring array of limiting grooves 56, and the outer side of the elastic band 54 is rotatably mounted with a roller 55, which is used to slide in the limiting grooves 56 and provide rotational power to the rotating ring 53, and the limiting grooves 56 are spiral structures;

[0054] A limit tube 58 is fixedly installed at the top of the elastic rubber tube 51, and a top ring 57 is slidably installed inside the limit tube 58. The top of the top ring 57 is used to be fixed on the lower surface of the filling bottom plate 8;

[0055] The limiting tube 58 and the top ring 57 are used to support the elastic rubber tube 51 to achieve the rotation effect of the upper half;

[0056] The pressure port structure 6 further includes a contact rubber ring 64, an elastic bracket 65, a soft rubber end 66 and a third spring 67;

[0057] A contact rubber ring 64 is fixedly installed at the bottom end of the driving tube sleeve 61, and an elastic bracket 65 is arranged in a ring shape at the bottom end of the inner wall of the driving tube sleeve 61. A soft rubber end 66 is fixedly installed at the top of the elastic bracket 65. The elastic bracket 65 is used to provide a sealing function for the elastic rubber tube 51. A third spring 67 is installed at the top of the driving tube sleeve 61.

[0058] The third spring 67 supports the driving sleeve 61 to fall. When the driving sleeve 61 falls, the plurality of rollers 55 move along the spiral track of the limit groove 56 to form a rotational force, which acts on the rotating ring 53. Through the connection between the rotating ring 53 and the elastic band 54, the rotating ring 53 rotates to form a rotational closing operation on the side waist of the elastic rubber tube 51, so that the waist area of ​​the elastic rubber tube 51 is in an inward state, and the inward state is normal. The elasticity of the elastic rubber tube 51 completes the sealing function and isolates the filling bottom plate 8 from the outside to avoid contact with the outside air after the filling action is completed, thereby reducing the transmission of bacteria.

[0059] according to Figure 2 As shown, when the main cylinder 1 falls, the driving sleeve 61 will drive the driving sleeve 61 to fall together. At this time, the filling bottle mouth will abut against the inclined position below the elastic rubber cylinder 51. Through the continuous falling of the main cylinder 1, the filling bottle mouth will push open the inclined part below the elastic rubber cylinder 51 and extend to the lower position of the linkage sealer 7. At this time, the main cylinder 1 continues to fall, so that the driving sleeve 61 rises upward, so that the rotating ring 53 rotates in the opposite direction to the previous one. Through the spiral trajectory of the roller 55 and the elastic bracket 65, the rotating ring 53 will be driven to rotate, so that the closed state of the elastic rubber cylinder 51 is expanded outward to form a cylindrical shape, and the sealing state inside the elastic rubber cylinder 51 is released, completing the closing and expanding action, waiting for spraying;

[0060] By closing the elastic rubber tube 51, the filling bottom plate 8 can be isolated from the outside air, further reducing the contact of the filling bottom plate 8 with the outside air before filling, avoiding contact with bacteria in the outside air, thereby achieving the function of aseptic filling and improving the hygiene level during filling.

[0061] Example 2

[0062] This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-Figure 5 In this embodiment, the support rod 2 includes a support main shaft 21, a movable shaft 22 and an inner cavity 23;

[0063] A supporting main shaft 21 is slidably installed inside the main cylinder 1, a movable shaft 22 is installed inside the supporting main shaft 21, an inner cavity 23 is also provided inside the supporting main shaft 21, and the bottom end of the movable shaft 22 is used to be fixed with the sealing ring 3;

[0064] A rebound mechanism 4 is installed at the top end of the movable shaft 22, and the rebound mechanism 4 includes a first spring 42 and a pin cone 43;

[0065] A first spring 42 located in the inner cavity 23 is installed on the outer side of the movable shaft 22, and the movable shaft 22 is used to slide and retract inside the inner cavity 23;

[0066] The rebound mechanism 4 further includes a top rod 41, a second spring 44, a cross rod 45 and a support pin seat 46;

[0067] A push rod 41 is slidably installed inside the movable shaft 22, a cross bar 45 is symmetrically installed at the top of the movable shaft 22, a pin cone 43 is provided at one end of the cross bar 45, a second spring 44 is installed on the outside of the cross bar 45, and a support pin seat 46 located at the top of the movable shaft 22 is sleeved on the outside of the cross bar 45, and the support pin seat 46 is used to provide a lateral sliding condition for the cross bar 45;

[0068] Side grooves are provided on both sides of the top rod 41, and pulleys located on the upper surface of the movable shaft 22 are symmetrically installed inside the side grooves;

[0069] A cable 47 is installed at one end of the crossbar 45, and the cable 47 extends along the outer side of the pulley to the upper end of the top rod 41;

[0070] An inner groove 48 is formed on the inner wall of the inner cavity 23 , and the pin cone 43 is used to be inserted into the inner groove 48 .

[0071] The main cylinder 1 is connected to the top through an external conveying device, and the required filling material is conveyed to the main cylinder 1. At this time, the main shaft 21 is supported to fall, driving the sealing ring 3 to fall as a whole, and providing negative pressure to the space above the sealing ring 3, and continuously sucking the filling material into the main cylinder 1. At the same time, the filling material under the sealing ring 3 is pressurized downward and pushed out of the main cylinder 1 through the filling chassis 8. When the sealing ring 3 falls to the bottom surface of the inner cavity 23, the single filling amount is completed. At this time, the bottom end of the ejector rod 41 will be in contact with the inner cavity 2 3, and pushes up the push rod 41, so that the top end of the push rod 41 drives the cable 47, pulls the cross bar 45 through the pulley, and pulls the pin cone 43 out of the inner groove 48, so that the movable shaft 22 drives the sealing ring 3 to bounce upward as a whole, so that the sealing ring 3 provides a short negative pressure suction force to the space below itself, so that the filling material inside the nozzle moves upward for a distance, away from the nozzle outlet, to avoid dripping, thereby achieving a neat effect of the device after a single filling.

[0072] At this time, the support main shaft 21 is reset and raised, but the space above the sealing ring 3 is in a positive pressure state, so that the filling material therein will flow into the position below the sealing ring 3 along the leak hole 33 when the sealing ring 3 is raised, and there is resistance when the filling material flows through the inside of the leak hole 33, and this resistance can drive the sealing ring 3 to fall, so that the pin cone 43 at the top of the movable shaft 22 is stuck in the inner groove 48, which is convenient for the subsequent circulation operation;

[0073] In this way, it can be combined with the overall structure of the elastic rubber cylinder 51, so that the filling chassis 8 can be in a closed environment to avoid dripping, and the neat effect after the nozzle completes the filling can be greatly reduced, thereby achieving a sterile filling environment and filling operation of the device.

[0074] Example 3

[0075] This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figure 1-Figure 5 In this embodiment, a linkage sealer 7 is further installed inside the main tube 1. The linkage sealer 7 includes an annular inner cavity 71, an elastic rubber ring 72, a first tube groove 73, a second tube groove 74 and an elastic air bag 75. The inner wall of the main tube 1 is provided with an annular inner cavity 71, an elastic rubber ring 72 is installed on the outer side of the annular inner cavity 71, and a first tube groove 73 located in the main tube 1 is provided at the lower end of the annular inner cavity 71;

[0076] The inner wall of the filling chassis 8 is provided with a second tube groove 74 located at one end of the first tube groove 73, and an elastic airbag 75 is fixedly installed on the inner wall of the nozzle. The other end of the second tube groove 74 is connected to the elastic airbag 75. The inside of the annular inner cavity 71 is filled with liquid. The elastic airbag 75 is used to provide a sealing effect for the nozzle.

[0077] The sealing ring 3 includes a piston 31, a sealing rubber edge 32, a leak hole 33, a one-way sealing plate 34 and an elastic rib 35;

[0078] A piston 31 is provided at the bottom end of the movable shaft 22, a sealing rubber edge 32 is fixedly installed on the outer side of the piston 31, a leak hole 33 is arranged in an annular array inside the piston 31, a one-way sealing plate 34 is provided at the bottom end of the leak hole 33, and an elastic rib 35 is provided on the lower surface of the one-way sealing plate 34, and the elastic rib 35 is used to provide the one-way sealing plate 34 with upward elasticity;

[0079] A support frame 92 is fixedly installed on the top of the main tube 1 , a driving cylinder 91 is fixedly installed on the top of the support frame 92 , and a liquid inlet pipe 93 is provided on one side of the main tube 1 .

[0080] When the sealing ring 3 is located at the side of the elastic rubber ring 72, it will squeeze the raised elastic rubber ring 72, and squeeze the liquid inside the elastic rubber ring 72, and squeeze it into the elastic airbag 75 below through the first tube groove 73 and the second tube groove 74, so that the elastic airbag 75 expands and forms a sealed space inside the nozzle to prevent the filling material from dripping downwards;

[0081] Furthermore, the elastic rubber ring 72 is located above the inner cavity 23, so that the expansion and collapse of the elastic airbag 75 will not affect the filling operation.

[0082] Example 4

[0083] The present invention also provides a filling method of a beverage filling device for aseptic filling, wherein the filling method comprises the following steps:

[0084] S1. Sealing the elastic rubber tube 51: When the driving tube sleeve 61 falls, the plurality of rollers 55 move along the spiral track of the limiting groove 56 to form a rotating force, which acts on the rotating ring 53. Through the connection between the rotating ring 53 and the elastic band 54, the rotating ring 53 rotates to form a rotating closing operation on the side waist of the elastic rubber tube 51, so that the waist area of ​​the elastic rubber tube 51 is in an inward state, and the inward state is normal. The elasticity of the elastic rubber tube 51 completes the sealing function;

[0085] S2, the elastic rubber cylinder 51 is unsealed: when the main cylinder 1 falls, the filling bottle mouth will abut against the inclined position below the elastic rubber cylinder 51. As the main cylinder 1 continues to fall, the filling bottle mouth will push open the inclined position below the elastic rubber cylinder 51 and extend to the position below the linkage sealer 7.

[0086] At this time, the main cylinder 1 continues to fall, causing the driving sleeve 61 to rise upward, so that the rotating ring 53 rotates in the opposite direction to the previous rotation. The spiral track of the roller 55 and the elastic bracket 65 drives the rotating ring 53 to rotate, so that the elastic rubber tube 51 is expanded outward from the closed state to form a cylindrical shape, and the sealing state inside the elastic rubber tube 51 is released, completing the closing and expanding action;

[0087] S3, the sealing ring 3 rebounds at the extreme position: the rebound supports the main shaft 21 to fall, driving the sealing ring 3 to fall as a whole. When the sealing ring 3 falls to the bottom surface of the inner cavity 23, the single filling amount is completed. At this time, the bottom end of the push rod 41 will contact the bottom end of the inner cavity 23, and push up the push rod 41, so that the top end of the push rod 41 drives the cable 47, pulls the cross bar 45 through the pulley, and pulls the pin cone 43 out of the inner groove 48, so that the movable shaft 22 drives the sealing ring 3 to bounce upward as a whole, providing a short negative pressure suction force to the space below the sealing ring 3, so that the filling material inside the nozzle moves upward for a distance, so that it is away from the nozzle outlet;

[0088] S4, resetting the sealing ring 3: when the sealing ring 3 rises, it will flow into the lower position of the sealing ring 3 along the leakage hole 33, and there will be resistance when the filling material flows through the leakage hole 33. This resistance can drive the sealing ring 3 to fall, so that the pin cone 43 at the top of the movable shaft 22 is stuck in the inner groove 48, completing the resetting, which is convenient for the subsequent circulation operation.

[0089] 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 that there is 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. Where necessary, as known to those skilled in the art, the above-mentioned embodiments may also additionally be provided with other control mechanisms, drive mechanisms, connection structures, power supplies and / or auxiliary structures to perform necessary operations and controls, so as not to deviate from the inventive spirit of the present invention and without structural interference between the structures, and can be implemented by those skilled in the art.

[0090] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A beverage filling device for aseptic filling, comprising a main barrel (1) and a support rod (2) in the main barrel (1), a sealing ring (3) being fixedly mounted at the bottom end of the support rod (2), and a filling bottom plate (8) being provided at the bottom end of the main barrel (1), characterized in that: A closing frame (5) is installed on the lower surface of the filling bottom plate (8), and the closing frame (5) comprises an elastic rubber tube (51), a supporting inner ring (52), a rotating ring (53), an elastic band (54) and a roller (55); The bottom surface of the filling bottom plate (8) is provided with a supporting inner ring (52), and an elastic rubber cylinder (51) located on the lower surface of the filling bottom plate (8) is installed inside the supporting inner ring (52); A rotating ring (53) is rotatably mounted on the inner wall of the supporting inner ring (52), an elastic band (54) is fixedly mounted on the inner side of the rotating ring (53), and a roller (55) is arranged on one side of the elastic band (54); The bottom end of the filling bottom plate (8) is provided with a nozzle.

2. The beverage filling device for aseptic filling according to claim 1, characterized in that: The outer side of the main tube (1) is also slidably mounted with a pressure mouth structure (6), the pressure mouth structure (6) comprising a driving sleeve (61), a limiting vertical groove (62) and a limiting pin (63); the outer surface of the main tube (1) is slidably mounted with a driving sleeve (61), the interior of the driving sleeve (61) is symmetrically provided with limiting vertical grooves (62), and limiting pins (63) located on both sides of the main tube (1) are also mounted inside the limiting vertical grooves (62), and the limiting pins (63) are used to provide limiting conditions for the driving sleeve (61); The closing frame (5) further comprises a limiting groove (56), a top ring (57) and a limiting tube (58); The inner side of the driving sleeve (61) is provided with a limiting groove (56) in an annular array, and a roller (55) is rotatably mounted on the outer side of the elastic band (54). The roller (55) is used to slide in the limiting groove (56) and provide rotational power for the rotating ring (53), and the limiting groove (56) is a spiral structure; A limit tube (58) is fixedly mounted on the top end of the elastic rubber cylinder (51), a top ring (57) is slidably mounted inside the limit tube (58), and the top end of the top ring (57) is used to be fixed on the lower surface of the filling bottom plate (8); The limiting tube (58) and the top ring (57) are used to support the elastic rubber cylinder (51) to achieve the rotation effect of the upper half.

3. The beverage filling device for aseptic filling according to claim 2, characterized in that: The pressure port structure (6) further comprises a contact rubber ring (64), an elastic bracket (65), a soft rubber end (66) and a third spring (67); A contact rubber ring (64) is fixedly mounted on the bottom end of the driving sleeve (61); elastic brackets (65) are arranged in a ring shape on the bottom end of the inner wall of the driving sleeve (61); a soft rubber end (66) is fixedly mounted on the top end of the elastic bracket (65); the elastic bracket (65) is used to provide a sealing function for the elastic rubber tube (51); and a third spring (67) is mounted on the top end of the driving sleeve (61).

4. The beverage filling device for aseptic filling according to any one of claims 1 to 3, characterized in that: The support rod (2) comprises a support main shaft (21), a movable shaft (22) and an inner cavity (23); A supporting main shaft (21) is slidably mounted inside the main cylinder (1), a movable shaft (22) is mounted inside the supporting main shaft (21), an inner cavity (23) is also provided inside the supporting main shaft (21), and the bottom end of the movable shaft (22) is used to be fixed to the sealing ring (3).

5. The beverage filling device for aseptic filling according to claim 4, characterized in that: A rebound mechanism (4) is installed at the top end of the movable shaft (22), and the rebound mechanism (4) comprises a first spring (42) and a pin cone (43); A first spring (42) located in the inner cavity (23) is installed on the outer side of the movable shaft (22), and the movable shaft (22) is used to slide and retract inside the inner cavity (23).

6. The beverage filling device for aseptic filling according to claim 5, characterized in that: The rebound mechanism (4) further comprises a push rod (41), a second spring (44), a cross rod (45) and a support pin seat (46); A push rod (41) is slidably installed inside the movable shaft (22), a cross bar (45) is symmetrically installed at the top of the movable shaft (22), one end of the cross bar (45) is provided with a pin cone (43), a second spring (44) is installed on the outside of the cross bar (45), and a support pin seat (46) located at the top of the movable shaft (22) is sleeved on the outside of the cross bar (45), and the support pin seat (46) is used to provide lateral sliding conditions for the cross bar (45).

7. The beverage filling device for aseptic filling according to claim 6, characterized in that: Side grooves are provided on both sides of the top rod (41), and pulleys located on the upper surface of the movable shaft (22) are symmetrically installed inside the side grooves; A cable (47) is installed at one end of the cross bar (45), and the cable (47) extends along the outer side of the pulley to the upper end of the top bar (41); An inner groove (48) is provided on the inner wall of the inner cavity (23), and the pin cone (43) is used for being inserted into the inner groove (48).

8. The beverage filling device for aseptic filling according to claim 7, characterized in that: A linkage sealer (7) is also installed inside the main tube (1), and the linkage sealer (7) comprises an annular inner cavity (71), an elastic rubber ring (72), a first tube groove (73), a second tube groove (74) and an elastic air bag (75). The inner wall of the main tube (1) is provided with an annular inner cavity (71), an elastic rubber ring (72) is installed on the outer side of the annular inner cavity (71), and the lower end of the annular inner cavity (71) is provided with a first tube groove (73) located inside the main tube (1); The inner wall of the filling bottom plate (8) is provided with a second tube groove (74) located at one end of the first tube groove (73); an elastic airbag (75) is fixedly mounted on the inner wall of the nozzle; the other end of the second tube groove (74) is connected to the elastic airbag (75); the interior of the annular inner cavity (71) is filled with liquid; and the elastic airbag (75) is used to provide a sealing effect for the nozzle.

9. The beverage filling device for aseptic filling according to claim 8, characterized in that: The sealing ring (3) comprises a piston (31), a sealing rubber edge (32), a leak hole (33), a one-way sealing plate (34) and an elastic rib (35); A piston (31) is provided at the bottom end of the movable shaft (22), a sealing rubber edge (32) is fixedly installed on the outer side of the piston (31), the interior of the piston (31) is provided with leakage holes (33) in an annular array, a one-way sealing plate (34) is provided at the bottom end of the leakage hole (33), and an elastic rib (35) is provided on the lower surface of the one-way sealing plate (34), and the elastic rib (35) is used to provide the one-way sealing plate (34) with upward elasticity; A support frame (92) is fixedly mounted on the top of the main cylinder (1), a driving cylinder (91) is fixedly mounted on the top of the support frame (92), and a liquid inlet pipe (93) is provided on one side of the main cylinder (1).

10. A filling method for a beverage filling device for aseptic filling according to claim 9, characterized in that: The filling method comprises the following steps: S1. Sealing the elastic rubber tube (51): while the driving tube sleeve (61) is falling, a plurality of rollers (55) are used to move along the spiral track of the limiting groove (56), thereby generating a rotational force, which acts on the rotating ring (53). Through the connection between the rotating ring (53) and the elastic band (54), the rotating ring (53) forms a rotational closing operation on the side waist of the elastic rubber tube (51) when rotating, so that the waist area of ​​the elastic rubber tube (51) is in an inward state, and the inward state is the normal state. The elasticity of the elastic rubber tube (51) itself completes the sealing function; S2, the elastic rubber cylinder (51) is unsealed: when the main cylinder (1) falls, the filling bottle mouth will abut against the inclined position below the elastic rubber cylinder (51). As the main cylinder (1) continues to fall, the filling bottle mouth will push open the inclined position below the elastic rubber cylinder (51) and extend to the position below the linkage sealer (7); At this time, the main cylinder (1) continues to fall, causing the driving sleeve (61) to rise, so that the rotating ring (53) rotates in the opposite direction to the previous rotation. The spiral track of the roller (55) and the elastic bracket (65) drives the rotating ring (53) to rotate, so that the elastic rubber cylinder (51) is expanded outward from the closed state to form a cylindrical shape, and the sealing state inside the elastic rubber cylinder (51) is released, completing the closing and expanding action; S3, the sealing ring (3) rebounds at the extreme position: the rebound is caused by the support main shaft (21) falling, driving the sealing ring (3) to fall as a whole. When the sealing ring (3) falls to the bottom surface of the inner cavity (23), the single filling amount is completed. At this time, the bottom end of the push rod (41) will contact the bottom end of the inner cavity (23) and lift the push rod (41), so that the top end of the push rod (41) drives the cable (47), pulls the cross bar (45) through the pulley, and pulls the pin cone (43) out of the inner groove (48), so that the movable shaft (22) drives the sealing ring (3) to rebound upward as a whole, providing a short negative pressure suction force to the space below the sealing ring (3), so that the filling material inside the nozzle moves upward for a distance, away from the nozzle outlet; S4, resetting the sealing ring (3): when the sealing ring (3) rises, it will flow into the lower position of the sealing ring (3) along the leak hole (33), and there is resistance when the filling material flows through the inside of the leak hole (33). This resistance can drive the sealing ring (3) to fall, so that the pin cone (43) at the top of the movable shaft (22) is stuck in the inner groove (48), completing the resetting, which is convenient for the subsequent circulation operation.

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