A filling apparatus

Abstract

The application discloses a filling equipment and relates to the technical field of liquid filling equipment. The filling equipment comprises a filling device, the filling device comprises a liquid storage tank, a pumping assembly, a lifting driving element, a plurality of liquid filling assemblies and a plurality of infusion tubes, the liquid filling assembly comprises a piston, a connecting rod, a liquid filling tube, a liquid inlet tube, a first one-way valve and a second one-way valve, a baffle is arranged in the liquid filling tube, the baffle divides the inner cavity of the liquid filling tube into a gas cavity and a liquid cavity, the two ends of the liquid inlet tube are respectively communicated with the infusion tube and the liquid cavity, the first one-way valve is arranged on the baffle, so that the gas in the gas cavity can enter the liquid cavity through the first one-way valve, the second one-way valve is arranged on the liquid filling tube, so that the external gas can enter the gas cavity through the second one-way valve, the piston is arranged in the gas cavity, the piston is connected with the rack through the connecting rod, when the liquid filling tube rises, the gas between the piston and the baffle enters the liquid cavity through the first one-way valve, and the residual liquid in the liquid cavity can flow out of the liquid cavity and into the bottle body, so that the waste of the liquid is reduced.

Description

Technical Field

[0001] This invention relates to the field of liquid filling equipment technology, and particularly to a filling device. Background Technology

[0002] Filling equipment is an automated machine used to precisely fill various liquid materials into containers such as bottles, cans, or bags. Filling equipment typically includes multiple filling tubes that extend into the bottle, allowing the liquid to flow through the tubes into the bottle body, thus completing the filling process. After filling, residual liquid remains in the filling tubes. This residual liquid drips due to gravity, contaminating the filling environment and causing liquid waste. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a filling device that can reduce liquid waste while avoiding contamination of the filling environment by dripping liquid.

[0004] A filling apparatus according to an embodiment of the present invention includes:

[0005] The machine includes a frame and an interval arrangement device. The frame is equipped with a conveying device for conveying multiple bottles from back to front. The conveying device is equipped with multiple filling stations distributed along the front-back direction. The interval arrangement device is used to move the multiple bottles on the conveying device to the multiple filling stations respectively.

[0006] A clamping and capping device for clamping and unscrewing or screwing on the bottle caps at multiple filling stations;

[0007] A moving device is used to drive the clamping and screwing device to move so that the multiple bottle caps held by the clamping and screwing device can be moved away from the bottle bodies of the multiple bottles respectively, or so that the multiple bottle caps held by the clamping and screwing device can be closed onto the bottle bodies respectively.

[0008] A filling device includes a storage tank, a pumping assembly, a lifting drive, multiple filling assemblies, and multiple infusion pipes. The storage tank stores liquid. The multiple filling assemblies are respectively located above multiple filling stations. The multiple filling assemblies are connected to the storage tank through multiple infusion pipes. The lifting drive is used to drive the multiple filling assemblies to descend or rise, so that the lower ends of the multiple filling assemblies can respectively extend into the bottle body at the multiple filling stations, or the lower ends of the multiple filling assemblies can respectively exit from the multiple bottle bodies. The pumping assembly is located on the multiple infusion pipes and is used to pump the liquid in the storage tank into the multiple bottle bodies through the multiple infusion pipes and the multiple filling assemblies.

[0009] The filling assembly includes a piston, a connecting rod, a filling tube, an inlet tube, a first one-way valve, and a second one-way valve. The filling tube is connected to the output end of the lifting drive component. The lower end of the filling tube extends into the bottle body. A partition is provided inside the filling tube, dividing the inner cavity of the filling tube into a gas chamber and a liquid chamber. The gas chamber is located above the liquid chamber. The inlet tube is located on the filling tube, and its two ends are connected to the infusion tube and the liquid chamber, respectively, so that the liquid in the infusion tube can pass through the inlet tube and flow into the liquid chamber. The first one-way valve is located on the partition, so that the gas in the gas chamber can enter the liquid chamber through the first one-way valve. The second one-way valve is located on the filling tube and can be connected to the gas chamber. The piston is positioned above the second one-way valve, allowing external gas to enter the gas chamber through the second one-way valve. The upper end of the connecting rod is connected to the frame, and the lower end of the connecting rod passes through the gas chamber and connects to the piston. The maximum travel of the piston relative to the filling tube is greater than the height of the liquid chamber. When the filling tube descends, the piston moves away from the partition, allowing external gas to enter between the piston and the partition through the second one-way valve. When the filling tube rises, the piston moves closer to the partition, and the gas between the piston and the partition enters the liquid chamber through the first one-way valve, allowing the residual liquid in the liquid chamber to flow out of the liquid chamber and into the bottle body.

[0010] It has at least the following beneficial effects:

[0011] The conveying device transports multiple bottles from back to front. With the help of an interleaving arrangement device, the bottles on the conveying device can be moved to multiple filling stations. After the bottles are in position, the moving device drives the clamping and capping device to move, allowing the clamping and capping device to clamp the caps of the bottles at the multiple filling stations. The clamping and capping device then unscrews the caps, and the moving device continues to drive the clamping and capping device to move, causing the caps to move away from the bottles. After the caps are away from the bottles, a lifting drive causes multiple filling assemblies to descend, so that the lower ends of the filling assemblies extend into the bottles. Then, the pumping assembly starts, and under its action, the liquid in the storage tank is drawn into multiple infusion tubes. The liquid in the infusion tubes then flows into the filling assemblies, and the liquid in the filling assemblies flows out from the lower ends of the assemblies and into the bottles. Finally, the lifting drive causes the filling assemblies to rise, so that the lower ends of the filling assemblies are withdrawn from the bottles. Then the moving device drives the clamping and capping device to move, so that the multiple caps held by the clamping and capping device are respectively placed on the multiple bottles. Finally, the clamping and capping device screws the multiple caps onto the multiple bottles to complete the filling of multiple bottles.

[0012] Each of the multiple filling assemblies includes a piston, connecting rod, filling tube, inlet tube, first one-way valve, and second one-way valve. Once multiple bottles are in position, a lifting drive causes multiple filling tubes to descend, allowing their lower ends to extend into the bottles. Taking one filling assembly as an example, a partition divides the inner cavity of the filling tube into an air chamber and a liquid chamber from top to bottom. Under the action of the first one-way valve, gas in the air chamber can pass through the first one-way valve into the liquid chamber, while gas in the liquid chamber cannot pass through the first one-way valve into the air chamber. Under the action of the second one-way valve, external gas can pass through the second one-way valve into the air chamber, while gas in the air chamber cannot pass through the second one-way valve into the outside. Since the piston is fixed to the frame by the connecting rod, during the descent of the filling tube, the piston gradually moves away from the partition, increasing the space between the piston and the partition and creating a negative pressure. At this time, external air is drawn into the space between the piston and the partition through the second one-way valve. As the lifting drive mechanism raises the multiple filling tubes—that is, during the process of the filling tubes being pulled out of the bottle—the piston gradually approaches the partition. The space between the piston and the partition is compressed, increasing the air pressure. This causes the gas between the piston and the partition to pass through the first one-way valve and enter the liquid chamber. At this time, the air pressure in the liquid chamber increases. Since the maximum stroke of the piston is greater than the height of the liquid chamber, the remaining liquid in the liquid chamber can flow out of the liquid chamber and into the bottle under the action of air pressure.

[0013] Under the action of the piston, the first one-way valve and the second one-way valve, during the process of the filling tube rising and being pulled out of the bottle, all the liquid remaining in the filling tube can flow out from the lower end of the filling tube and into the bottle. This not only avoids residual liquid dripping from the filling tube after filling, but also reduces liquid waste.

[0014] According to an embodiment of the filling device of the present invention, the liquid filling assembly further includes a third one-way valve, an air pipe, and an annular jetting element. The annular jetting element is disposed at the lower end of the liquid filling tube, and a plurality of jetting holes are formed on the inner side of the annular jetting element. The plurality of jetting holes are arranged in a circumferential array along the axis of the liquid filling tube. The third one-way valve is disposed on the liquid filling tube and between the piston and the partition. The air outlet of the third one-way valve is connected to the plurality of jetting holes through the air pipe. The gas between the piston and the partition can pass through the third one-way valve and the air pipe and be ejected from the plurality of jetting holes, so that the gas ejected from the plurality of jetting holes can blow the liquid adhering to the lower end of the liquid filling tube into the bottle body.

[0015] According to an embodiment of the filling device of the present invention, the outer diameter of the lower end of the filling tube gradually decreases from top to bottom.

[0016] According to an embodiment of the filling equipment of the present invention, the clamping and capping device includes a plurality of capping assemblies, each of which is connected to the output end of the moving device. Each of the plurality of capping assemblies corresponds to a plurality of filling stations, and each of the plurality of capping assemblies is used to drive the bottle caps at the plurality of filling stations to rotate, so that the bottle caps are unscrewed or screwed on.

[0017] According to an embodiment of the filling equipment of the present invention, the capping assembly includes a mounting base, a first motor, a second motor, two first capping wheels, two second capping wheels, and two first linear drive members. The mounting base is connected to the output end of the moving device. Both the first motor and the second motor are slidably connected to the mounting base. The output end of the first motor is drivenly connected to the two first capping wheels, and the output end of the second motor is drivenly connected to the two second capping wheels. Both first linear drive members are disposed on the mounting base. The two first linear drive members can respectively drive the first motor and the second motor to move closer to each other, so that the two first capping wheels and the two second capping wheels clamp the bottle cap. The first motor and the second motor are respectively used to drive the two first capping wheels and the two second capping wheels to rotate, so that the two first capping wheels and the two second capping wheels drive the bottle cap to rotate, and so that the bottle cap is unscrewed or screwed on.

[0018] According to an embodiment of the filling equipment of the present invention, the capping assembly further includes a second linear drive member disposed on the mounting base, and the output end of the second linear drive member is used to push the cap downward so that the cap can press against the bottle body.

[0019] According to an embodiment of the filling equipment of the present invention, the clamping and capping device further includes a suction assembly, and each of the plurality of capping assemblies further includes a debris box. The debris box is connected to the mounting base. Two first capping rollers and two second capping rollers are disposed in the debris box. An avoidance hole is provided on the bottom wall of the debris box. The avoidance hole is located below the two first capping rollers and two second capping rollers. The avoidance hole is used for the bottle cap to pass through so that the two first capping rollers and two second capping rollers can clamp the bottle cap. The suction assembly is in communication with the plurality of debris boxes and is used to suction debris from the plurality of debris boxes.

[0020] According to an embodiment of the filling equipment of the present invention, a jetting station is provided at the rear end of the conveying device. The suction assembly includes a vacuum pump, a jetting head, a chip collection filter box, and multiple suction pipes. The jetting head is located on the frame corresponding to the jetting station. The jetting end of the jetting head is directed toward the gap between the bottle cap and the bottle body at the jetting station. One end of each of the multiple suction pipes is connected to a plurality of chip collection boxes, and the other end of each of the multiple suction pipes is connected to the chip collection filter box. The chip collection filter box is connected to the air inlet of the vacuum pump and is used to filter and collect chips. The air outlet of the vacuum pump is connected to the jetting head so that the gas ejected from the jetting head can blow away the moisture between the bottle cap and the bottle body.

[0021] The filling equipment according to an embodiment of the present invention further includes a steam generating device, a steam collecting device, a collecting tank, an adapter pipe, and a third linear drive. The filling device also includes multiple rubber rings, each of which is respectively fitted onto the lower end of a plurality of filling pipes. The collecting tank is provided with multiple adapter cylinders, all of which communicate with the collecting tank. The third linear drive is mounted on the frame and is capable of driving the collecting tank to move below the plurality of filling pipes, so that the plurality of adapter cylinders are respectively aligned with the plurality of filling pipes. The lifting drive... A moving part drives multiple irrigation tubes to descend, allowing the lower ends of each irrigation tube to extend into multiple adapter tubes, and the lower ends of each irrigation tube to abut against the inner walls of the adapter tubes via rubber rings. A steam generator is connected to the storage tank and generates steam to fill the storage tank, multiple infusion tubes, and multiple irrigation tubes with steam. A collection box is connected to a steam collection device via an adapter tube, allowing the steam collection device to collect the steam ejected from the multiple irrigation tubes.

[0022] The filling equipment according to an embodiment of the present invention further includes a hot air generating device, which is connected to the liquid storage tank. The hot air generating device is used to blow hot air into the liquid storage tank so that the water in the liquid storage tank, the plurality of infusion pipes and the plurality of filling pipes can be dried.

[0023] Additional features and advantages will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 This is a schematic diagram of the bottle structure according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the bottle body according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the filling equipment according to an embodiment of the present invention;

[0028] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0029] Figure 5 This is a schematic diagram of the filling device and collection box in the filling equipment according to an embodiment of the present invention;

[0030] Figure 6This is a schematic diagram of the liquid filling assembly in the filling equipment according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the lower end of the filling assembly in the filling equipment according to an embodiment of the present invention;

[0032] Figure 8 This is a cross-sectional view showing the lower end of the filling assembly in the filling equipment according to an embodiment of the present invention extending into the bottle body;

[0033] Figure 9 This is a cross-sectional schematic diagram showing the lower end of the filling component in the filling equipment of this invention extending into the adapter cylinder.

[0034] Figure 10 This is a schematic diagram of the capping assembly in the filling equipment according to an embodiment of the present invention;

[0035] Figure 11 This is a schematic diagram of the bottom structure of the capping assembly in the filling equipment according to an embodiment of the present invention;

[0036] Figure 12 This is a schematic diagram of the internal structure of the capping assembly in the filling equipment according to an embodiment of the present invention;

[0037] Figure 13 This is a schematic diagram of the conveying device and the spacing arrangement device in the filling equipment according to an embodiment of the present invention;

[0038] Figure label:

[0039] Frame 100; Conveying device 110; Interval arrangement device 120; Screw conveyor 121; Baffle 122; Collection box 130; Adapter drum 131; Adapter pipe 132; Third linear drive component 140;

[0040] Mobile device 200;

[0041] Filling device 300; lifting drive component 310; infusion pipe 320; filling assembly 330; filling pipe 331; inlet pipe 332; piston 333; connecting rod 334; first check valve 335; second check valve 336; third check valve 337; partition 338; air pipe 340; annular jet component 350; jet hole 351; rubber ring 360; air chamber 370; liquid chamber 380;

[0042] Clamping and screwing device 400; screwing assembly 410; first motor 411; second motor 412; first screwing wheel 413; second screwing wheel 414; first linear drive 415; second linear drive 416; debris box 417; clearance hole 418; mounting base 419; suction assembly 420; suction tube 421. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0045] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0046] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0047] refer to Figure 1 and Figure 2 In this embodiment of the invention, the bottle consists of a bottle body and a bottle cap.

[0048] refer to Figures 3 to 8 The filling equipment of this invention includes:

[0049] The frame 100 is equipped with a conveying device 110, which is used to convey multiple bottles from back to front. The conveying device 110 is equipped with multiple filling stations, which are distributed along the front-back direction.

[0050] The spaced arrangement device 120 is used to move multiple bottles on the conveying device 110 to multiple filling stations respectively;

[0051] Clamping and capping device 400, which is used to clamp and unscrew or screw on the caps of bottles at multiple filling stations.

[0052] The moving device 200 is used to drive the clamping and screwing device 400 to move so that the multiple bottle caps held by the clamping and screwing device 400 can be moved away from the bottle body of the multiple bottles respectively, or so that the multiple bottle caps held by the clamping and screwing device 400 can be closed onto the bottle body respectively.

[0053] The filling device 300 includes a liquid storage tank, a pumping assembly, a lifting drive 310, multiple filling assemblies 330, and multiple infusion pipes 320. The liquid storage tank is used to store liquid. The multiple filling assemblies 330 are respectively located above multiple filling stations. The multiple filling assemblies 330 are respectively connected to the liquid storage tank through multiple infusion pipes 320. The lifting drive 310 is used to drive the multiple filling assemblies 330 to rise or fall so that the lower ends of the multiple filling assemblies 330 can respectively extend into the bottle body at the multiple filling stations. The pumping assembly is located on the multiple infusion pipes 320 and is used to allow the liquid in the liquid storage tank to flow into the multiple bottles through the multiple infusion pipes 320 and the multiple filling assemblies 330.

[0054] The filling assembly 330 includes a piston 333, a connecting rod 334, a filling tube 331, an inlet tube 332, a first check valve 335, and a second check valve 336. The filling tube 331 is connected to the output end of the lifting drive 310. The lower end of the filling tube 331 is used to extend into the bottle body. A partition 338 is provided inside the filling tube 331, which divides the inner cavity of the filling tube 331 into an air chamber 370 and a liquid chamber 380. The air chamber 370 is located above the liquid chamber 380. The inlet pipe 332 is located on the filling pipe 331 and below the partition 338. Both ends of the inlet pipe 332 are connected to the delivery pipe 320 and the liquid chamber 380, respectively, so that the liquid in the delivery pipe 320 can pass through the inlet pipe 332 and flow into the liquid chamber 380. A first one-way valve 335 is located on the partition 338, so that the gas in the gas chamber 370 can enter the liquid chamber 380 through the first one-way valve 335. A second one-way valve 336 is located on the filling pipe 331. On the liquid pipe 331, a second one-way valve 336 is located above the partition 338 to allow external gas to enter the gas chamber 370 through the second one-way valve 336. A piston 333 is located inside the gas chamber 370, above the second one-way valve 336. The upper end of the connecting rod 334 is connected to the frame 100, and the lower end of the connecting rod 334 passes through the gas chamber 370 and is connected to the piston 333. The maximum stroke of the piston 333 relative to the filling pipe 331 is greater than [missing information]. When the filling tube 331 descends, the piston 333 moves away from the partition 338, allowing external gas to enter between the piston 333 and the partition 338 through the second one-way valve 336. When the filling tube 331 rises, the piston 333 moves closer to the partition 338, and the gas between the piston 333 and the partition 338 enters the liquid chamber 380 through the first one-way valve 335, allowing the residual liquid in the liquid chamber 380 to flow out of the liquid chamber 380 and into the bottle body.

[0055] Understandably, the conveying device 110 can convey multiple bottles from back to front. Under the action of the spacing arrangement device 120, the multiple bottles on the conveying device 110 can be moved to multiple filling stations respectively. After the multiple bottles are moved into place, the moving device 200 drives the clamping and capping device 400 to move, so that the clamping and capping device 400 can clamp the bottle caps of the multiple filling stations. Then the clamping and capping device 400 unscrews the multiple bottle caps, and the moving device 200 continues to drive the clamping and capping device 400 to move, so that the multiple bottle caps are moved away from the multiple bottle bodies respectively. After the bottle caps are moved away from the bottles, the lifting drive 310 drives the multiple filling assemblies 330 to descend, so that the lower ends of the multiple filling assemblies 330 extend into the multiple bottle bodies respectively. Next, the pumping assembly starts, drawing liquid from the storage tank into multiple infusion tubes 320. The liquid in these tubes then flows into multiple filling assemblies 330, and from their lower ends flows into multiple bottles. Then, the lifting drive 310 raises the filling assemblies 330, drawing their lower ends out of the bottles. Next, the moving device 200 moves the clamping and capping device 400, causing the caps to be held by the device to fit onto the bottles. Finally, the device screws the caps onto the bottles, completing the filling process.

[0056] Each of the multiple filling assemblies 330 includes a piston 333, a connecting rod 334, a filling tube 331, an inlet tube 332, a first one-way valve 335, and a second one-way valve 336. When multiple bottles are moved into position, the lifting drive 310 drives the multiple filling tubes 331 to descend, so that the lower ends of the multiple filling tubes 331 extend into the multiple bottle bodies respectively. This explanation uses a filling assembly 330 as an example. A partition 338 divides the inner cavity of the filling tube 331 from top to bottom into a gas chamber 370 and a liquid chamber 380. Under the action of a first one-way valve 335, gas in the gas chamber 370 can pass through the first one-way valve 335 into the liquid chamber 380, while gas in the liquid chamber 380 cannot pass through the first one-way valve 335 into the gas chamber 370. Under the action of a second one-way valve 336, external gas can pass through the second one-way valve 336 into the gas chamber 370, while gas in the gas chamber 370 cannot pass through the second one-way valve 336 into the outside. Since the piston 333 is fixed to the frame 100 by a connecting rod 334, during the descent of the filling tube 331, the piston 333 gradually moves away from the partition 338, increasing the space between the piston 333 and the partition 338 and creating a negative pressure. At this time, external air is drawn through the second one-way valve 336 into the space between the piston 333 and the partition 338. When the lifting drive 310 drives the multiple filling tubes 331 to rise, that is, during the process of the filling tubes 331 being pulled out of the bottle body, the piston 333 gradually approaches the partition 338. The space between the piston 333 and the partition 338 is compressed, causing the air pressure to increase. This allows the gas between the piston 333 and the partition 338 to pass through the first one-way valve 335 and enter the liquid chamber 380. At this time, the air pressure in the liquid chamber 380 increases. Since the maximum stroke of the piston 333 is greater than the height of the liquid chamber 380, the remaining liquid in the liquid chamber 380 can flow out of the liquid chamber 380 and into the bottle body under the action of air pressure.

[0057] Under the action of piston 333, first one-way valve 335 and second one-way valve 336, during the process of the filling tube 331 rising and being pulled out of the bottle body, all the liquid remaining in the filling tube 331 can flow out from the lower end of the filling tube 331 and into the bottle body. This not only avoids residual liquid dripping from the filling tube 331 after filling, but also reduces liquid waste.

[0058] It should be explained that unscrewing the bottle cap means loosening it, and screwing the bottle cap on means tightening it.

[0059] refer to Figures 6 to 8The filling assembly 330 also includes a third one-way valve 337, an air pipe 340, and an annular jet nozzle 350. The annular jet nozzle 350 is located at the lower end of the filling tube 331. Multiple jet holes 351 are provided on the inner side of the annular jet nozzle 350. The multiple jet holes 351 are arranged in a circumferential array along the axis of the filling tube 331. The third one-way valve 337 is located on the filling tube 331 and between the piston 333 and the partition 338. The outlet end of the third one-way valve 337 is connected to the multiple jet holes 351 through the air pipe 340. The gas between the piston 333 and the partition 338 can pass through the third one-way valve 337 and the air pipe 340 and be ejected from the multiple jet holes 351, so that the gas ejected from the multiple jet holes 351 can blow the liquid attached to the lower end of the filling tube 331 into the bottle body. It should be explained that during the filling process, a small amount of liquid will also adhere to the lower end of the filling tube 331, that is, a small amount of liquid will adhere to the bottom surface of the filling tube 331. After the liquid adhering to the bottom surface of the filling tube 331 accumulates to a certain level, it will drip down, which will not only contaminate the filling working environment, but also cause liquid waste.

[0060] Understandably, under the action of the third one-way valve 337, the gas in the gas chamber 370 can pass through the third one-way valve 337 into the gas pipe 340, while the gas in the gas pipe 340 cannot pass through the third one-way valve 337 into the gas chamber 370. When the lifting drive 310 drives the multiple filling tubes 331 to rise, that is, during the process of the filling tubes 331 being pulled out of the bottle, the piston 333 gradually approaches the partition 338, and the space between the piston 333 and the partition 338 is compressed, causing the air pressure to increase. At this time, some of the air between the piston 333 and the partition 338 will pass through the first one-way valve 335 into the liquid chamber 380, while another part of the gas will pass through the third one-way valve 337 into the gas pipe 340. Another portion of the gas flows into the gas pipe 340 and is ejected from multiple jet holes 351. The ejected gas acts on the liquid adhering to the lower end of the filling tube 331, causing the liquid to be blown off into the bottle. The annular jet nozzle 350 and the third one-way valve 337 prevent liquid from adhering to the lower end of the filling tube 331 and dripping, thus reducing liquid waste.

[0061] On the other hand, the maximum stroke of piston 333 relative to filling tube 331 is greater than the height of liquid chamber 380. This means that after all the liquid in liquid chamber 380 in filling tube 331 has flowed out, piston 333 still has a downward stroke relative to filling tube 331. This allows the gas ejected from multiple jet holes 351 to blow off some of the residual liquid attached to the lower end of filling tube 331, further eliminating the possibility of liquid dripping.

[0062] As one embodiment of the present invention, the inner diameter of the air cavity 370 is larger than the inner diameter of the liquid cavity 380, so that when the filling tube 331 rises, a large amount of gas is blown into the lower port of the liquid cavity 380 and the filling tube 331.

[0063] refer to Figure 7 The outer diameter of the lower end of the filling tube 331 gradually decreases from top to bottom. Understandably, this gradual contraction at the lower end of the filling tube 331 results in an inclined sidewall. This inclined sidewall guides the gas ejected from the multiple jet holes 351, directing the gas flow towards a downward angle, thus allowing the liquid adhering to the lower end of the filling tube 331 to be smoothly blown into the bottle.

[0064] refer to Figure 3 and Figure 4 The clamping and capping device 400 includes multiple capping assemblies 410, each of which is connected to the output end of the moving device 200. Each capping assembly 410 corresponds to a multiple filling station and is used to drive the bottle caps at the multiple filling stations to rotate so that the bottle caps are unscrewed or screwed on.

[0065] refer to Figures 10 to 12 The cap-tightening assembly 410 includes a mounting base 419, a first motor 411, a second motor 412, two first cap-tightening wheels 413, two second cap-tightening wheels 414, and two first linear drive members 415. The mounting base 419 is connected to the output end of the moving device 200. Both the first motor 411 and the second motor 412 are slidably connected to the mounting base 419. The output end of the first motor 411 is driven by the two first cap-tightening wheels 413, and the output end of the second motor 412 is driven by the two second cap-tightening wheels 414. Each of the first linear drive members 415 is mounted on the mounting base 419. The two first linear drive members 415 can respectively drive the first motor 411 and the second motor 412 to move closer to each other, so that the two first capping rollers 413 and the two second capping rollers 414 clamp the bottle cap. The first motor 411 and the second motor 412 are respectively used to drive the two first capping rollers 413 and the two second capping rollers 414 to rotate, so that the two first capping rollers 413 and the two second capping rollers 414 drive the bottle cap to rotate, and so that the bottle cap is unscrewed or screwed on.

[0066] This explanation uses a capping assembly 410 as an example. Understandably, when filling is required, the moving device 200 first moves the mounting base 419 horizontally, causing the two first capping rollers 413 and two second capping rollers 414 to move above the filling station. Then, the moving device 200 drives the mounting base 419 downwards, positioning the bottle cap on the bottle at the filling station between the two first capping rollers 413 and two second capping rollers 414. Next, the two first linear drive members 415 respectively drive the first motor 411 and the second motor 412 to move closer together, causing the two first capping rollers 413 and two second capping rollers 414 to clamp the bottle cap on the bottle. Then, the first motor 411 drives the two first capping rollers 413 to rotate, and the second motor 412 drives the two second capping rollers 414 to rotate. Driven by the two first capping rollers 413 and two second capping rollers 414, the bottle cap begins to rotate, causing it to be unscrewed. After the bottle cap is unscrewed, the moving device 200 drives the mounting base 419 to move upward first and then horizontally, so that the bottle cap is detached from the bottle body and away from the bottle body, so that the filling device 300 can smoothly fill the liquid into multiple bottles.

[0067] After multiple filling tubes 331 are extracted from multiple bottles, the moving device 200 first moves the mounting base 419 horizontally, aligning the caps held by the two first capping rollers 413 and two second capping rollers 414 with the bottles at the filling station. Next, the moving device 200 lowers the mounting base 419, allowing the caps held by the two first capping rollers 413 and two second capping rollers 414 to be closed onto the bottles. Finally, the first motor 411 drives the two first capping rollers 413 to rotate, and the second motor 412 drives the two second capping rollers 414 to rotate. At this point, the caps begin to rotate, screwing them onto the bottles to complete the filling of multiple bottles.

[0068] refer to Figure 10 and Figure 11 The capping assembly 410 also includes a second linear drive 416, which is mounted on the mounting base 419. The output end of the second linear drive 416 is used to push the cap downwards so that the cap can press against the bottle body. Understandably, during the cap tightening process, the output end of the second linear drive 416 can abut against the cap held by the two first capping rollers 413 and the two second capping rollers 414, and push the cap downwards, increasing the force between the cap and the bottle body, ensuring that the cap can be smoothly tightened onto the bottle body.

[0069] It should be explained that, in the embodiments of the invention, the outer wall of the bottle cap is provided with striped anti-slip texture. During the process of the two first capping rollers 413 and two second capping rollers 414 clamping and rotating the bottle cap, the first capping rollers 413 and two second capping rollers 414 will rub against the bottle cap, which can easily damage the anti-slip texture and form debris. This debris may fall into the bottle body during the process of the two first capping rollers 413 and two second capping rollers 414 removing the bottle cap, causing internal contamination of the bottle.

[0070] refer to Figure 10 and Figure 11 The clamping and screwing device 400 also includes a suction assembly 420. Each of the multiple screwing assemblies 410 includes a debris box 417. The debris box 417 is connected to the mounting base 419. Two first screwing wheels 413 and two second screwing wheels 414 are located inside the debris box 417. An clearance hole 418 is provided on the bottom wall of the debris box 417. The clearance hole 418 is located below the two first screwing wheels 413 and two second screwing wheels 414. The clearance hole 418 is used for the bottle cap to pass through so that the two first screwing wheels 413 and two second screwing wheels 414 can clamp the bottle cap. The suction assembly 420 is connected to the multiple debris boxes 417 and is used to suction debris from the multiple debris boxes 417.

[0071] Understandably, the moving device 200 drives the mounting base 419 to descend, allowing the bottle cap on the bottle at the filling station to pass through the clearance hole 418 on the bottom wall of the debris box 417 and be positioned between the two first capping rollers 413 and the two second capping rollers 414. Then, the two first linear drive members 415 respectively drive the first motor 411 and the second motor 412 to move closer to each other, causing the two first capping rollers 413 and the two second capping rollers 414 to clamp the bottle cap on the bottle. Next, the first motor 411 drives the two first capping rollers 413 to rotate, and the second motor 412 drives the two second capping rollers 414 to rotate. When the anti-slip texture on the outer wall of the bottle cap is damaged and debris is generated, the debris can fall into the debris box 417. At this time, under the action of the suction assembly 420, the debris in the debris box 417 can be sucked into the suction assembly 420 to achieve the purpose of removing debris. The suction assembly 420 can remove debris caused by damage to the anti-slip texture of the bottle cap, thus effectively preventing the bottle from being contaminated by falling debris. It should be noted that the suction assembly 420 can simultaneously suction and remove debris from the debris boxes 417 of multiple screw cap assemblies 410.

[0072] In one embodiment of the present invention, each of the multiple cap-screwing assemblies 410 further includes two first brushes and two second brushes, both of which are disposed within a debris box 417. The two first brushes abut against the sides of the two first cap-screwing wheels 413 away from the clearance hole 418, and the two second brushes abut against the sides of the two second cap-screwing wheels 414 away from the clearance hole 418. When the two first cap-screwing wheels 413 and the two second cap-screwing wheels 414 rotate, the first brushes can brush debris adhering to the first cap-screwing wheels 413 into the debris box 417, and the second brushes can brush debris adhering to the second cap-screwing wheels 414 into the debris box 417. This allows the suction assembly 420 to more quickly remove debris from the debris box 417, improving the debris removal effect and cleaning efficiency of the suction assembly 420.

[0073] In existing technology, to ensure the bottles are sterile, operators first immerse them completely in hydrogen peroxide solution for disinfection, then send them to a drying device for drying, and finally send the dried bottles to a filling machine for filling. During the immersion disinfection process, moisture may remain in the gap between the bottle cap and the bottle body. Because the drying effect cannot be guaranteed to be uniform throughout the drying area of ​​the drying device, some bottles may not be dried completely from the moisture between the cap and the bottle body. This residual moisture may fall into the bottle during the subsequent filling process, contaminating the liquid inside. This residual moisture also promotes bacterial growth, making the bottle contaminated with bacteria.

[0074] As an embodiment of the present invention, the rear end of the conveying device 110 is provided with a jetting station. The suction assembly 420 includes a vacuum pump, a jetting head, a chip collection filter box, and multiple suction pipes 421. The jetting head is located at the corresponding jetting station on the frame 100. The jetting end of the jetting head is used to face the gap between the bottle cap and the bottle body at the jetting station. One end of each of the multiple suction pipes 421 is connected to multiple chip boxes 417, and the other end of each of the multiple suction pipes 421 is connected to the chip collection filter box. The chip collection filter box is connected to the air inlet of the vacuum pump. The chip collection filter box is used to filter and collect chips. The air outlet of the vacuum pump is connected to the jetting head so that the gas ejected from the jetting head can blow away the moisture between the bottle cap and the bottle body. Understandably, since multiple debris boxes 417 are connected to the air inlet of the vacuum pump via suction pipes 421 and debris collection filter boxes, a negative pressure is generated inside the multiple debris boxes 417 after the vacuum pump is started. This allows the debris in the multiple debris boxes 417 to be drawn into the multiple suction pipes 421 respectively, thereby achieving the purpose of debris removal. The debris collection box is used to collect and filter the debris in the multiple suction pipes 421 to prevent debris from being drawn into the vacuum pump.

[0075] In this embodiment of the invention, the jet nozzle is located at the jetting station at the rear end of the conveying device 110, and the jetting end of the jet nozzle is aligned with the gap between the bottle cap and the bottle body. Since the outlet of the vacuum pump is connected to the jet nozzle, when the vacuum pump is started, the gas discharged from the vacuum pump can be ejected from the jet nozzle. The ejected gas acts on the gap between the bottle cap and the bottle body at the jetting station, allowing moisture between the cap and the bottle body to be blown away, preventing residual moisture between the cap and the bottle body from falling into the bottle body during subsequent filling, thereby preventing contamination of the liquid inside the bottle. After leaving the jetting station, multiple bottles continue to move forward and are respectively moved to the filling station.

[0076] refer to Figure 13 As one embodiment of the present invention, the spaced arrangement device 120 includes a baffle 122 and a screw conveyor 121. The screw conveyor 121 and the baffle 122 are respectively disposed on the left and right sides of the conveying device 110. The screw conveyor is connected to the frame 100. The gap between the screw conveyor 121 and the baffle 122 is used for bottles to pass through. The baffle 122 is used to abut against the bottle body. The screw conveyor 121 can arrange multiple bottles at intervals and convey multiple bottles forward, so that multiple bottles move to multiple filling stations respectively, so that the clamping and capping device 400 can be capped smoothly and the filling device 300 can be filled smoothly. The screw conveyor 121 is a common arrangement conveyor, which will not be described in detail here.

[0077] As multiple bottles move forward between the screw conveyor 121 and the stop bar 122, the screw conveyor 121 and the stop bar 122 always remain in contact with the bottle body. That is, the screw conveyor 121 and the stop bar 122 play a clamping and limiting role on the bottle body, preventing the bottle body from rotating during the capping process, so as to ensure that the cap can be opened or tightened smoothly.

[0078] refer to Figure 3 , Figure 5 and Figure 9The filling equipment also includes a steam generator, a steam collector, a collection box 130, an adapter pipe 132, and a third linear drive 140. The filling device 300 also includes multiple rubber rings 360, which are respectively fitted onto the lower ends of multiple filling pipes 331. The collection box 130 is equipped with multiple adapter cylinders 131, all of which are connected to the collection box 130. The third linear drive 140 is mounted on the frame 100 and can drive the collection box 130 to move below the multiple filling pipes 331, so that the multiple adapter cylinders 131 are respectively aligned with the multiple filling pipes 331. 31. The lifting drive 310 drives multiple injection pipes 331 to descend, so that the lower ends of the multiple injection pipes 331 can be inserted into multiple adapter cylinders 131 respectively, and the lower ends of the multiple injection pipes 331 are respectively abutted against the inner walls of the multiple adapter cylinders 131 by rubber rings 360. The steam generator is connected to the storage tank and is used to generate steam so that the storage tank, multiple infusion pipes 320 and multiple injection pipes 331 are filled with steam. The collection box 130 is connected to the steam collection device through the adapter pipe 132 so that the steam collection device can collect the steam sprayed from the multiple injection pipes 331.

[0079] Before filling, the liquid stored in the storage tank is drained. Then, the third linear drive 140 moves the collection box 130 to a position below the multiple filling pipes 331, aligning the multiple adapter cylinders 131 on the collection box 130 with the multiple filling pipes 331. Next, the lifting drive 310 lowers the multiple filling pipes 331, causing their lower ends to extend into the multiple adapter cylinders 131. At this time, the rubber rings 360 on the lower ends of the filling pipes 331 press against the inner walls of the adapter cylinders 131, sealing the gap between the inner walls of the adapter cylinders 131 and the lower ends of the filling pipes 331. After the multiple filling pipes 331 are in place, the steam generator is activated. The steam generator is connected to the storage tank. The steam generated by the steam generator fills the storage tank and flows into multiple infusion pipes 320. The steam in the multiple infusion pipes 320 flows into multiple filling pipes 331 and is ejected from the multiple filling pipes 331. The steam ejected from the filling pipes 331 passes sequentially through the inner cavity of the collection box 130 and the transfer pipe 132 and flows into the steam collection device. It can be understood that the steam generated by the steam generator can fill the storage tank, multiple infusion pipes 320, and multiple filling pipes 331. The high-temperature steam can sterilize the storage tank, multiple infusion pipes 320, and multiple filling pipes 331, ensuring that the liquid is in a sterile environment during storage and filling, effectively preventing bacteria in the storage tank, multiple infusion pipes 320, and multiple filling pipes 331 from contaminating the filled liquid.

[0080] In one embodiment of the present invention, the filling equipment further includes a hot air generating device, which is connected to the storage tank. The hot air generating device is used to blow hot air into the storage tank to dry the moisture in the storage tank, the multiple infusion pipes 320, and the multiple filling pipes 331. It is understood that after the storage tank, the multiple infusion pipes 320, and the multiple filling pipes 331 are disinfected, the steam generating device is turned off, and the hot air generating device is activated. The hot air generating device can generate hot air and blow it into the storage tank, and the hot air can be blown into the multiple infusion pipes 320 and sprayed out from the multiple filling pipes 331. The hot air generated by the hot air generating device can dry the moisture remaining in the storage tank, the multiple infusion pipes 320, and the multiple filling pipes 331 due to steam, preventing the moisture in the storage tank, the multiple infusion pipes 320, and the multiple filling pipes 331 from affecting the quality of the liquid to be filled. After the disinfection and drying processes are completed, the lifting drive 310 drives the multiple filling pipes 331 to rise, and the third linear drive 140 drives the collection box 130 away from below the multiple filling pipes 331, so that filling can begin.

[0081] In this embodiment of the invention, the steam generator is a device for heating water and converting it into steam. This device can also transport steam and is a common industrial device, which will not be discussed further here. The hot air generator is a device that uses electrical energy to heat gas and then transports the heated gas to a storage tank; this will not be discussed further here. The steam collection device is a device for collecting and processing steam. The steam collection device typically includes components such as a steam trap, condenser, water storage tank, and steam recovery pump. Hot air ejected from multiple filling pipes 331 can also enter the steam collection device and then be discharged outdoors through the steam collection device; this will not be discussed further here.

[0082] In this embodiment of the invention, all the infusion tubes 320 are flexible tubes, and the pumping assembly includes multiple peristaltic pumps. The output ends of the multiple peristaltic pumps press against the multiple infusion tubes 320 respectively. The peristaltic pumps are used to make the liquid in the infusion tubes 320 flow to complete the filling. This will not be discussed further here.

[0083] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A filling device, characterized in that, include: The machine includes a frame and an interval arrangement device. The frame is equipped with a conveying device for conveying multiple bottles from back to front. The conveying device is equipped with multiple filling stations distributed along the front-back direction. The interval arrangement device is used to move the multiple bottles on the conveying device to the multiple filling stations respectively. A clamping and capping device for clamping and unscrewing or screwing on the bottle caps at multiple filling stations; A moving device is used to drive the clamping and screwing device to move so that the multiple bottle caps held by the clamping and screwing device can be moved away from the bottle bodies of the multiple bottles respectively, or so that the multiple bottle caps held by the clamping and screwing device can be closed onto the bottle bodies respectively. A filling device includes a storage tank, a pumping assembly, a lifting drive, multiple filling assemblies, and multiple infusion pipes. The storage tank stores liquid. The multiple filling assemblies are respectively located above multiple filling stations. The multiple filling assemblies are connected to the storage tank through multiple infusion pipes. The lifting drive is used to drive the multiple filling assemblies to descend or rise, so that the lower ends of the multiple filling assemblies can respectively extend into the bottle body at the multiple filling stations, or the lower ends of the multiple filling assemblies can respectively exit from the multiple bottle bodies. The pumping assembly is located on the multiple infusion pipes and is used to pump the liquid in the storage tank into the multiple bottle bodies through the multiple infusion pipes and the multiple filling assemblies. The filling assembly includes a piston, a connecting rod, a filling tube, an inlet tube, a first one-way valve, and a second one-way valve. The filling tube is connected to the output end of the lifting drive component. The lower end of the filling tube extends into the bottle body. A partition is provided inside the filling tube, dividing the inner cavity of the filling tube into a gas chamber and a liquid chamber. The gas chamber is located above the liquid chamber. The inlet tube is located on the filling tube, and its two ends are respectively connected to the infusion tube and the liquid chamber, so that the liquid in the infusion tube can pass through the inlet tube and flow into the liquid chamber. The first one-way valve is located on the partition, so that the gas in the gas chamber can enter the liquid chamber through the first one-way valve. The second one-way valve is located on the filling tube and can communicate with the gas chamber, so that the external gas... The piston is located inside the gas chamber via the second one-way valve and is positioned above the second one-way valve. The upper end of the connecting rod is connected to the frame, and the piston is fixed to the frame via the connecting rod. The lower end of the connecting rod passes through the gas chamber and is connected to the piston. The maximum travel of the piston relative to the filling tube is greater than the height of the liquid chamber. When the filling tube descends, the piston moves away from the partition, allowing external gas to enter between the piston and the partition via the second one-way valve. When the filling tube rises, the piston moves closer to the partition, and the gas between the piston and the partition enters the liquid chamber via the first one-way valve, allowing the residual liquid in the liquid chamber to flow out of the liquid chamber and into the bottle body. The filling assembly further includes a third one-way valve, an air pipe, and an annular jet nozzle. The annular jet nozzle is located at the lower end of the filling tube, and multiple jet holes are formed on the inner side of the annular jet nozzle. The multiple jet holes are arranged in a circumferential array along the axis of the filling tube. The third one-way valve is located on the filling tube and between the piston and the partition. The outlet end of the third one-way valve is connected to the multiple jet holes through the air pipe. The gas between the piston and the partition can pass through the third one-way valve and the air pipe and be ejected from the multiple jet holes, so that the gas ejected from the multiple jet holes can blow the liquid adhering to the lower end of the filling tube into the bottle body.

2. The filling equipment according to claim 1, characterized in that: The outer diameter of the lower end of the irrigation tube gradually decreases from top to bottom.

3. The filling equipment according to claim 1, characterized in that: The clamping and capping device includes multiple capping components, each of which is connected to the output end of the moving device. Each capping component is respectively configured to correspond to a multiple filling station. Each capping component is used to drive the bottle cap at the multiple filling stations to rotate, so that the bottle cap is unscrewed or screwed on.

4. The filling equipment according to claim 3, characterized in that: The capping assembly includes a mounting base, a first motor, a second motor, two first capping rollers, two second capping rollers, and two first linear drive members. The mounting base is connected to the output end of the moving device. Both the first motor and the second motor are slidably connected to the mounting base. The output end of the first motor is driven by the two first capping rollers, and the output end of the second motor is driven by the two second capping rollers. Both first linear drive members are mounted on the mounting base and can respectively drive the first motor and the second motor to move closer to each other, so that the two first capping rollers and the two second capping rollers clamp the cap. The first motor and the second motor are respectively used to drive the two first capping rollers and the two second capping rollers to rotate, so that the two first capping rollers and the two second capping rollers drive the cap to rotate, and thus the cap is unscrewed or screwed on.

5. The filling equipment according to claim 4, characterized in that: The capping assembly further includes a second linear drive member, which is disposed on the mounting base. The output end of the second linear drive member is used to push the cap downward so that the cap can press against the bottle body.

6. The filling equipment according to claim 4, characterized in that: The clamping and screwing device further includes a suction assembly, and each of the multiple screwing assemblies also includes a debris box. The debris box is connected to the mounting base. Two first screwing wheels and two second screwing wheels are disposed inside the debris box. An clearance hole is provided on the bottom wall of the debris box. The clearance hole is located below the two first screwing wheels and two second screwing wheels. The clearance hole is used for the bottle cap to pass through so that the two first screwing wheels and two second screwing wheels can clamp the bottle cap. The suction assembly is in communication with the multiple debris boxes and is used to suction debris from the multiple debris boxes.

7. The filling equipment according to claim 6, characterized in that: The rear end of the conveying device is equipped with an air jet station. The suction assembly includes a vacuum pump, an air jet head, a chip collection and filter box, and multiple suction pipes. The air jet head is located on the frame corresponding to the air jet station. The air jet end of the air jet head is directed toward the gap between the bottle cap and the bottle body at the air jet station. One end of each of the multiple suction pipes is connected to multiple chip collection boxes, and the other end of each of the multiple suction pipes is connected to the chip collection and filter box. The chip collection and filter box is connected to the air inlet of the vacuum pump and is used to filter and collect chips. The air outlet of the vacuum pump is connected to the air jet head so that the gas ejected from the air jet head can blow away the moisture between the bottle cap and the bottle body.

8. The filling equipment according to claim 1, characterized in that: The device also includes a steam generator, a steam collection device, a collection box, adapter pipes, and a third linear drive. The filling device further includes multiple rubber rings, each fitted onto the lower end of a plurality of filling pipes. The collection box is equipped with multiple adapter cylinders, all of which communicate with the collection box. The third linear drive is mounted on the frame and drives the collection box to move below the multiple filling pipes, aligning the adapter cylinders with the multiple filling pipes. The lifting drive drives the multiple... The irrigation pipes are lowered so that the lower ends of the multiple irrigation pipes can respectively extend into the multiple adapter tubes, and the lower ends of the multiple irrigation pipes abut against the inner walls of the multiple adapter tubes respectively through the rubber rings. The steam generating device is connected to the storage tank and is used to generate steam so that the storage tank, the multiple infusion pipes and the multiple irrigation pipes are filled with steam. The collection box is connected to the steam collecting device through the adapter pipe so that the steam collecting device can collect the steam ejected from the multiple irrigation pipes.

9. The filling equipment according to claim 8, characterized in that: It also includes a hot air generating device, which is connected to the liquid storage tank. The hot air generating device is used to blow hot air into the liquid storage tank so that the water in the liquid storage tank, the multiple infusion pipes and the multiple filling pipes can be dried.

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