CN113753825A - Bottle filling device and bottle filling method - Google Patents

Abstract

The invention belongs to the field of aseptic packaging, and discloses a bottle body filling device and a bottle body filling method, wherein the bottle body filling device comprises a receiving seat, a bottle body conveying assembly, a first screwing assembly, a second screwing assembly and a filling assembly, the bottle body conveying assembly, the first screwing assembly, the second screwing assembly and the filling assembly are all positioned above the receiving seat, the first screwing assembly, the filling assembly and the second screwing assembly are sequentially arranged, and at least part of the bottle body conveying assembly is positioned below the first screwing assembly, the filling assembly and the second screwing assembly. The filling operation of the automatic aseptic bottle can be realized.

Description

Bottle filling device and bottle filling method

Technical Field

The invention belongs to the field of aseptic packaging, and particularly relates to a bottle body filling device and a bottle body filling method.

Background

In some products needing to be filled and bottled, the existing assembly line type package can meet the requirement of aseptic filling, but because the bottle body and the cover body are separated in the filling process, the bottle body and the cover body need to be cleaned, sterilized and dried, and then aseptic filling is carried out, although the whole process can realize unmanned operation, the production process is long, the occupied area is large, and the method can be accepted when large-batch aseptic filling is carried out; but it is not practical to manufacture the line for small batches of aseptic filling, which results in an increased cost response. Therefore, the manual cap screwing mode for filling in some existing small-batch filling products also increases the labor amount of workers.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a bottle body filling device and a bottle body filling method, which can realize automatic filling operation of aseptic bottles.

The technical scheme is as follows:

the bottle filling device comprises a receiving seat, a bottle conveying assembly, a first screwing assembly, a second screwing assembly and a filling assembly, wherein the bottle conveying assembly, the first screwing assembly, the second screwing assembly and the filling assembly are all located above the receiving seat, the first screwing assembly, the filling assembly and the second screwing assembly are sequentially arranged, and at least part of the bottle conveying assembly is located below the first screwing assembly, the filling assembly and the second screwing assembly.

In one embodiment, the first screwing assembly, the filling assembly and the second screwing assembly are arranged in close proximity in sequence.

In one embodiment, the cover conveying assembly further comprises a cover receiving member and a first cover conveying member, wherein the cover receiving member is located on the first cover conveying member, and the first cover conveying member drives the cover receiving member to reciprocate in the first screwing assembly to the second screwing assembly.

In one embodiment, the lid transport assembly includes a second lid transport member, the lid receiver mounted on the second lid transport member, the second lid transport member mounted on the first lid transport member, the second lid transport member driving the lid receiver to move beneath the screw portion of the first screw assembly or the second screw assembly.

In one embodiment, each of the first and second screw assemblies includes a lifting mechanism and a screw claw mounted on a lifting portion of the lifting mechanism; the filling subassembly includes lifting mechanism and filling tube, the filling tube is installed the lifting part of lifting mechanism.

In one embodiment, the screwing claw further comprises a screwing motor and a three-jaw disc, and the screwing motor drives the three-jaw disc to rotate forwards and backwards.

In one embodiment, the bottle conveying assembly is a circular conveying assembly, and the bottle conveying assembly is positioned on the bearing seat.

In one embodiment, the vial delivery assembly comprises an endless power member and a placement member disposed on the endless power member.

In one embodiment, the placing member comprises sockets with different specifications, and the sockets with different specifications can be spliced in an overlapping mode.

The bottle body filling method comprises the following steps:

placing the sterile bottle on the bottle body conveying assembly;

the bottle body conveying assembly drives the sterile bottle to be conveyed to the position below the first screwing assembly, and the first screwing assembly starts to unscrew the cover body;

the bottle body conveying assembly continues to drive the sterile bottle to be conveyed to the position below the filling assembly close to the first screwing assembly, and the filling assembly fills the product into the bottle body until a set amount is reached;

the bottle body conveying assembly continues to drive the sterile bottle in the same direction and conveys the sterile bottle to the position below a second screwing assembly which is close to the filling assembly, and the second screwing assembly starts to screw the cover body tightly;

and finishing the bottle body filling operation.

The technical scheme provided by the invention has the following advantages and effects:

during the use, put into sterile bottle that will disinfect on bottle conveyor components, bottle conveyor components carries the bottle to get into the first below of twisting the subassembly soon, and first twisting the subassembly this moment is twisted the subassembly and is begun work, unscrews the lid of sterile bottle, then bottle conveyor components continues to carry the bottle to get into to the filling subassembly below, and the product is gone into in the filling subassembly filling, and bottle conveyor components continues to carry the bottle to get into the second and twists the subassembly below soon, and the second at this moment is twisted the subassembly and is twisted the lid rapidly to tighten, accomplishes sterile filling operation. The whole filling process only needs to put the aseptic bottle into the bottle body conveying assembly, and finally the aseptic bottle is filled and taken out, so that the degree of automation is high. And because the steps of sterilizing and drying the sterile bottle and the like are not needed, the whole filling process equipment can be completely arranged on the bearing seat, the miniaturization is realized, a platform is provided for small-batch filling, and the manufacturing cost is relatively low.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles and effects of the invention.

Unless otherwise specified or defined, the same reference numerals in different figures refer to the same or similar features, and different reference numerals may be used for the same or similar features.

FIG. 1 is a schematic structural diagram of a three-dimensional view according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the embodiment of the present invention with the protective cover removed;

FIG. 3 is a schematic perspective view of the embodiment of the present invention with the protective cover removed;

FIG. 4 is a front view of an embodiment of the present invention with the protective cover removed;

FIG. 5 is a right side view of an embodiment of the present invention with the protective cover removed;

FIG. 6 is a top view of an embodiment of the present invention with the protective cover removed;

FIG. 7 is a perspective view of a vial transport assembly according to an embodiment of the present invention;

FIG. 8 is an enlarged schematic view of the structure at A in FIG. 7 according to an embodiment of the present invention;

FIG. 9 is an exploded view of the lid transport assembly of the present invention;

FIG. 10 is a perspective view of a first/second screw assembly in accordance with an embodiment of the present invention;

FIG. 11 is an exploded view of the screwing claw according to the embodiment of the present invention;

fig. 12 is an exploded view of the lifting mechanism according to the embodiment of the present invention.

Description of reference numerals:

10. a bearing seat; 11. a wheel; 12. supporting legs; 13. a protective cover; 20. a vial transport assembly; 21. a circulating power member; 211. a drive mechanism; 2111. a push rod; 2112. a power box; 212. a circulation channel; 2121. a linear channel; 2122. a blocking lever; 2123. an avoidance groove; 22. placing the piece; 221. a sleeve seat; 30. a first screw assembly; 31. a lifting mechanism; 32. screwing claws; 321. screwing the motor; 322. a three-jaw plate; 40. a second screw assembly; 50. a filling assembly; 60. a cover body conveying assembly; 61. a first cover body conveying member; 62. a second cover body conveying member; 63. a cover body bearing part; 64. a protective shell; 70. and (5) sterile bottles.

Detailed Description

In order to facilitate an understanding of the invention, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.

Unless specifically stated or otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the case of combining the technical solutions of the present invention in a realistic scenario, all technical and scientific terms used herein may also have meanings corresponding to the purpose of achieving the technical solutions of the present invention.

As used herein, unless otherwise specified or defined, "first" and "second" … are used merely for name differentiation and do not denote any particular quantity or order.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless specified or otherwise defined.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.

The bottle filling device can be used for filling sterile bottles or ordinary bottles, but in the embodiment, the sterile bottle 70 is used as an example.

As shown in fig. 1 to 6, the bottle filling apparatus includes a socket 10, a bottle conveying assembly 20, a first screwing assembly 30, a second screwing assembly 40 and a filling assembly 50, wherein the bottle conveying assembly 20, the first screwing assembly 30, the second screwing assembly 40 and the filling assembly 50 are all located above the socket 10, the first screwing assembly 30, the filling assembly 50 and the second screwing assembly 40 are arranged in sequence, and the bottle conveying assembly 20 is at least partially located below the first screwing assembly 30, the filling assembly 50 and the second screwing assembly 40.

When the sterile bottle conveying assembly is used, the sterilized sterile bottle 70 is placed on the bottle conveying assembly 20, the bottle conveying assembly 20 conveys the bottle to enter the position below the first screwing assembly 30, at the moment, the first screwing assembly 30 starts to work, the cover body of the sterile bottle 70 is unscrewed, then the bottle conveying assembly 20 continues to convey the bottle to enter the position below the filling assembly 50, the filling assembly 50 is filled with a product, then the bottle conveying assembly 20 continues to convey the bottle to enter the position below the second screwing assembly 40, and at the moment, the second screwing assembly 40 quickly screws the cover body to finish sterile filling operation. The whole filling process only needs to put the sterile bottle 70 on the bottle body conveying assembly 20, and finally, the filling is finished and then the sterile bottle is taken out, so the automation degree is high. And because the steps of sterilizing and drying the sterile bottle 70 and the like are not needed, the whole filling process equipment can be completely arranged on the bearing seat 10, the miniaturization is realized, a platform is provided for small-batch filling, and the manufacturing cost is relatively low.

As shown in fig. 1, the bottom of the bearing seat 10 is provided with wheels 11 and supporting legs 12, the supporting legs 12 can move up and down, the supporting seat can be fixed when moving down, and the wheels 11 land to push the bearing seat 10 conveniently when moving up. A protective cover 13 is further sleeved on the upper portion of the socket 10, and the protective cover 13 can protect the first screwing assembly 30, the second screwing assembly 40 and the filling assembly 50.

As shown in fig. 1 to 4, the first screwing assembly 30, the filling assembly 50 and the second screwing assembly 40 are arranged in close proximity in sequence. The three processes of unscrewing the cover body, filling and screwing the cover are close to each other, so that the whole structure of the product is compact, in addition, the total distance of conveying the three processes can be shortened in a close mode, the conveying time is short, the cover body can be screwed fast, and the phenomenon that the bottle mouth is exposed for a long time and the mixed bacteria enter the bottle mouth is avoided. Here, the abutment may be against each other or there may be a gap, but the gap does not exceed the length occupied by the first screw member 30 therein.

As shown in fig. 1 to 6 and 9, the filling apparatus for sterile bottles 70 further includes a cap conveying assembly 60, wherein the cap conveying assembly 60 includes a cap receiver 63 and a first cap conveyor 61, the cap receiver 63 is located on the first cap conveyor 61, and the first cap conveyor 61 drives the cap receiver 63 to reciprocate in the first screwing assembly 30 to the second screwing assembly 40. After the first screwing assembly 30 unscrews the cap, the cap is placed on the cap receiving member 63 and then conveyed to the second screwing assembly 40 under the action of the first cap conveying member 61, and the second screwing assembly 40 picks up the cap and screws the cap on the bottle body, thereby completing the whole filling operation. The lid transport assembly 60 thus completes the lid transport operation and avoids manual lid transport.

Specifically, as shown in fig. 9, the cap conveying assembly 60 includes a second cap conveying member 62, the cap receiving member 63 is mounted on the second cap conveying member 62, the second cap conveying member 62 is mounted on the first cap conveying member 61, and the second cap conveying member 62 drives the cap receiving member 63 to move below the screwing portion of the first screwing assembly 30 or the second screwing assembly 40. The first cap conveying element 61 conveys the caps in the direction of the first screwing assembly 30 and the second screwing assembly 40, and a second cap conveying element 62 is provided to avoid interference of the cap receiving element 63 on the first screwing assembly 30, the filling assembly 50 or the second screwing assembly 40 during conveying, and the second cap conveying element 62 can pull the cap out of the working range of the first screwing assembly 30, the filling assembly 50 and the second screwing assembly 40, so that interference of the cap on the first screwing assembly 30, the filling assembly 50 or the second screwing assembly 40 during conveying is avoided. Of course, when it is desired to deliver a cap to either the first screw assembly 30 or the second screw assembly 40, the second cap delivery member 62 again drives the cap receiver 63 into position beneath either the first screw assembly 30 or the second screw assembly 40.

As shown in fig. 9, the cover transport assembly 60 is here provided with a protective shield 64 to prevent dust from entering. The first cover body conveying part 61 adopts a screw rod and motor transmission mode and is provided with a slide rail to provide stable linear conveying. A support column is also arranged below the slide rail, so that the height of the first cover body conveying part 61 is fixed and is adapted to the height of the first screwing assembly 30 and the second screwing assembly 40. The second cover conveying part 62 adopts a cylinder conveying mode to realize linear extension. Of course, there are two convex or concave positions on the cover receiving member 63 corresponding to the society for limiting the position of the cover, avoiding the movement, and ensuring that the second screwing assembly 40 can normally grasp the cover.

As shown in fig. 2 and 10, each of the first screw assembly 30 and the second screw assembly 40 includes a lifting mechanism 31 and a screw claw 32, and the screw claw 32 is mounted on a lifting portion of the lifting mechanism 31; the filling assembly 50 comprises a lifting mechanism 31 and a filling tube, which is mounted on the lifting portion of the lifting mechanism 31. Wherein the lifting mechanisms 31 of the first screw assembly 30 and the second screw assembly 40 lift the screw claws 32 up and down, thereby moving the lid up and down. In addition, the filling tube is lifted up and down with respect to the lifting mechanism 31 of the filling assembly 50. The lifting mechanisms 31 here are all of the same construction in the present embodiment, but may be of different constructions, and may perform the lifting function.

In the present embodiment, the lifting mechanism 31 is driven by a lead screw motor.

As shown in fig. 10 to 12, the screw claw 32 further includes a screw motor 321 and a three-jaw plate 322, and the screw motor 321 drives the three-jaw plate 322 to rotate forward and backward. The screwing motor 321 provides rotation power for the three-jaw disc 322 to screw the cover body off and screw the cover body down. The use of three-jaw dish 322 can take multiple implementation, can adopt fixed different modes, also can adopt rotatable mode, and when adopting the rotation mode, each jack catch is the rotation hinge joint, is the contained angle that becomes 120 degrees each other between which jack catch, provides power through atmospheric pressure or other mechanical mechanism, rotates three jack catch round articulated position, realizes being close to and keeping away from of three jack catch, promptly presss from both sides tightly and unclamps.

As shown in FIGS. 6 and 7, the bottle body transporting assembly 20 is a circular transporting device, and the bottle body transporting assembly 20 is located on the receiving base 10. The aseptic bottle 70 can be loaded on the same position in the circulating conveying process, and the aseptic bottle 70 filled with the product can be taken down at the same position, so that the same worker can complete the operation at the position, and the aseptic bottle 70 can be automatically taken and placed in a manipulator mode. Moreover, the bottle body conveying assembly 20 is positioned on the bearing seat 10, so that the conveying of the sterile bottles 70 is only carried out on the bearing seat 10, and the whole circulation does not need to occupy excessive space.

As shown in FIG. 7, the vial conveying assembly 20 comprises an endless power member 21 and a placement member 22, and the placement member 22 is placed on the endless power member 21. The circulating power member 21 provides power to circulate the placing member 22.

As shown in fig. 7, the placement member 22 includes sockets 221 with different specifications, and the sockets 221 with different specifications can be spliced together in an overlapping manner. Because each bottle body of the sterile bottle 70 is not the same in specification, in order to realize the universality of sterile bottles 70 with different specifications, different specifications are used, a plurality of sleeve seats 221 with different specifications are arranged at the positions, the sleeve components can be mutually overlapped, only the sleeve seat 221 with a large specification can be adopted for the sterile bottle 70 with a large specification, so that the cover body part of the sterile bottle 70 reaches the specified height, the sleeve seats 221 with a plurality of specifications can be sleeved for the sterile bottle 70 with a small specification, at the moment, the position for placing the sterile bottle 70 not only becomes high, but also relatively narrows, then the sterile bottle 70 with a small specification is placed on the sleeve seat 221 at the uppermost layer, the horizontal position of the sterile bottle 70 with a small specification is fixed, and the height position also reaches the specified height, so that the sterile bottles 70 with different specifications can be universally used. And other assembly line type modes can only fill the aseptic bottle 70 with a specified specification, or can realize the filling of the aseptic bottle 70 with another specification only by greatly changing equipment on the assembly line, and the aseptic bottles 70 with different specifications are filled by one piece again, so that the operation complexity is greatly increased.

For better clarity of the relationship between the sockets 221, a first specification socket 221 and a second specification socket 221 are used as specific examples, and the second specification socket 221 may be stacked above the first specification socket 221. I.e., so that the format of the placing member 22 can be changed, the adjustment of the height and the placing position is achieved by the superposition between the first format socket 221 and the second format socket 221. To accommodate sterile bottles 70 of different sizes.

The second specification sleeve seat 221 can be placed in the placement position of the first specification sleeve seat 221. Therefore, the second specification sleeve seat 221 is not easy to move, and plays a better limiting role.

Of course, not only the first specification nest 221 and the second specification nest 221 described above, but also the third specification nest 221 and the fourth specification nest 221, and so on may be present.

As shown in fig. 7, the circulating power member 21 includes a driving mechanism 211 and a circulating channel 212, the circulating channel 212 is a closed loop structure, the placing member 22 is provided with a placing position, the placing member 22 is placed on the circulating channel 212, and the driving mechanism 211 acts on the placing member 22 to drive the placing member 22 to move on the circulating channel 212. When the aseptic bottle 70 is circularly used, the material circulating device is started, the aseptic bottle 70 is placed on the placing part 22, the placing part 22 moves along the circulating channel 212 under the action of the driving mechanism 211, the circulating channel 212 is of a closed-loop structure, and the aseptic bottle 70 can be conveyed back after rotating, so that the aseptic bottle 70 is completely filled when being conveyed back, the aseptic bottle 70 is required to stop in each process step during filling operation, the problem of conveying position precision during stopping is guaranteed, the placing part 22 is directly driven by the driving mechanism 211, and conveying precision can be improved. And the belt conveying mode has the problem of time delay in conveying.

Wherein the driving mechanism 211 comprises a pushing bar 2111, and the pushing bar 2111 extends into the circulation channel 212. The placing member 22 is pushed by the pushing bar 2111.

As shown in fig. 7 and 8, the circulating channel 212 includes a plurality of linear channels 2121, and the linear channels 2121 are adjacent end to form a closed loop. The placing member 22 is transported by the pushing bar 2111, so that the linear driving is most reliable.

The circulation passage 212 is provided with four linear passages 2121, and the linear passages 2121 between adjacent passages are perpendicular to each other. I.e., when a turn is needed, the push rod 2111 on the different linear channels 2121 pushes to realize a 90-degree turn. Here, four straight passages 2121 are taken as an example, but this is not the only way.

Specifically, the pushing rod 2111 is disposed at one end of the linear channel 2121, and the pushing direction of the pushing rod 2111 is the same as the length direction of the linear channel 2121. The pushing of the push rod 2111 ensures that the placing member 22 is conveyed on the linear passage 2121.

As shown in fig. 7, the driving mechanism 211 includes a power box 2112, the power box 2112 is installed below the linear passage 2121, an avoiding groove 2123 is formed on the linear passage 2121, the length direction of the avoiding groove 2123 is the same as the length direction of the linear passage 2121, and the push rod 2111 extends from the power box 2112, passes through the avoiding groove 2123 and protrudes out of the upper surface of the linear passage 2121. That is, the driving mechanism 211 is at the bottom position of the power box 2112, and does not occupy a surface position, and then the power supplied from the power box 2112 is output on the push rod 2111 to act on the placing member 22. Here, the escape groove 2123 is provided to escape the push rod 2111.

A plurality of placing pieces 22 are placed on the channel, and each placing piece 22 is in contact with each other and is provided with a vacant position, and the size of the vacant position is equal to that of the placing piece 22. By leaving a position free during pushing, the placement member 22 on each linear channel 2121 can be pushed to have a movable position. Power transmission between the placement members 22 is transmitted through contact therebetween.

Two sides of the circulation channel 212 are provided with blocking rods 2122. The blocking rod 2122 serves as a blocking function to prevent the dropping of the placing member 22.

In order to increase the filling speed, two aseptic bottles 70 can be simultaneously processed in each process.

A method of filling a sterile vial 70 comprising the steps of:

placing the sterile vial 70 onto the vial transport assembly 20;

the bottle body conveying assembly 20 drives the sterile bottle 70 to be conveyed to the lower part of the first screwing assembly 30, and the first screwing assembly 30 starts to unscrew the cover body;

the bottle body conveying assembly 20 continues to drive the sterile bottle 70 to be conveyed to the position, close to the lower part of the filling assembly 50 of the first screwing assembly 30, and the filling assembly 50 fills the product into the bottle body until a set amount is reached;

the bottle body conveying assembly 20 continues to drive the sterile bottle 70 in the same direction to be conveyed to the position, close to the filling assembly 50, below the second screwing assembly 40, and the second screwing assembly 40 starts to screw the cover body tightly;

the filling operation of the sterile bottle 70 is completed.

When the drawing description is quoted, the new characteristics are explained; in order to avoid that repeated reference to the drawings results in an insufficiently concise description, the drawings are not referred to one by one in the case of clear description of the already described features.

The above embodiments are provided to illustrate, reproduce and deduce the technical solutions of the present invention, and to fully describe the technical solutions, the objects and the effects of the present invention, so as to make the public more thoroughly and comprehensively understand the disclosure of the present invention, and not to limit the protection scope of the present invention.

The above examples are not intended to be exhaustive of the invention and there may be many other embodiments not listed. Any alterations and modifications without departing from the spirit of the invention are within the scope of the invention.

Claims (10)

1. The bottle body filling device is characterized by comprising a receiving seat, a bottle body conveying assembly, a first screwing assembly, a second screwing assembly and a filling assembly, wherein the bottle body conveying assembly, the first screwing assembly, the second screwing assembly and the filling assembly are all located above the receiving seat, the first screwing assembly, the filling assembly and the second screwing assembly are sequentially arranged, and at least part of the bottle body conveying assembly is located below the first screwing assembly, the filling assembly and the second screwing assembly.

2. The vial filling apparatus of claim 1, wherein the first screw assembly, the filling assembly and the second screw assembly are arranged in close proximity in sequence.

3. The apparatus for filling bottle bodies according to claim 1, further comprising a cap conveying assembly, the cap conveying assembly including a cap receiving member and a first cap conveying member, the cap receiving member being positioned on the first cap conveying member, the first cap conveying member driving the cap receiving member to reciprocate in the first screwing assembly to the second screwing assembly.

4. The apparatus for filling bottle bodies of claim 3, wherein the cap conveying assembly includes a second cap conveying member, the cap receiving member being mounted on the second cap conveying member, the second cap conveying member being mounted on the first cap conveying member, the second cap conveying member driving the cap receiving member to move under the screw portion of the first screw assembly or the second screw assembly.

5. The bottle filling apparatus of claim 1, wherein each of the first screw assembly and the second screw assembly comprises a lifting mechanism and a screw claw mounted on a lifting portion of the lifting mechanism; the filling subassembly includes lifting mechanism and filling tube, the filling tube is installed the lifting part of lifting mechanism.

6. The vial filling apparatus of claim 5, wherein the screw driver further comprises a screw motor and a three-jaw disc, the screw motor driving the three-jaw disc in forward and reverse rotation.

7. The vial filling apparatus of any one of claims 1 to 6, wherein the vial conveying assembly is a circular conveyor and the vial conveying assembly is located on the receptacle.

8. The vial filling apparatus of claim 7, wherein the vial transport assembly comprises an endless power member and a placement member, the placement member being disposed on the endless power member.

9. The bottle filling apparatus of claim 8, wherein the placement member comprises sockets of different sizes, and the sockets of different sizes can be stacked and spliced.

10. The bottle body filling method is characterized by comprising the following steps:

placing the sterile bottle on the bottle body conveying assembly;

the bottle body conveying assembly drives the sterile bottle to be conveyed to the position below the first screwing assembly, and the first screwing assembly starts to unscrew the cover body;

the bottle body conveying assembly continues to drive the sterile bottle to be conveyed to the position below the filling assembly close to the first screwing assembly, and the filling assembly fills the product into the bottle body until a set amount is reached;

the bottle body conveying assembly continues to drive the sterile bottle in the same direction and conveys the sterile bottle to the position below a second screwing assembly which is close to the filling assembly, and the second screwing assembly starts to screw the cover body tightly;

and finishing the bottle body filling operation.

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