Oral liquid branching conveying and filling equipment

Abstract

The invention relates to the technical field of filling equipment, and discloses oral liquid branching conveying and filling equipment which comprises a base frame, a fixed valve cylinder, a lifting frame, a rotatable rotating frame and a fixed-point transmission system, a feeding and discharging station, a gas injection station, a heating station and a filling station are sequentially arranged on the base frame in the clockwise direction, and four frequency conversion systems are installed on the rotating frame. Each frequency conversion system is in transmission connection with a bottle support capable of vertically vibrating in a reciprocating mode and alternately rotating forwards and backwards, the vibration frequency and the vibration stroke of the bottle supports change circularly, elastic pressing frames are slidably installed on the positions, corresponding to the bottle supports, of the lifting frame, and springs limited through the lifting frame are installed on the top faces of the elastic pressing frames. And a follow-up rotating seat is rotationally mounted on the elastic pressing frame. In the invention, the vibration frequency and the vibration stroke are cyclically changed, the oral liquid can be quickly filled into each corner of a bottle body through high-frequency vibration, the filling speed is increased, bubbles in the liquid can be discharged through low-frequency vibration, and the filling is more compact.

Description

Technical Field

[0001] The present invention relates to the technical field of filling equipment, and more particularly to oral liquid line conveying and filling equipment. Background Art

[0002] In the prior art, patent document CN112320725A discloses a black chicken oral liquid filling device, which includes a bracket, a material extraction and spraying component installed on the bracket, a placement component installed on the bracket, and a push-pull component installed between the bracket and the placement component. The above device is equipped with a discharge component, which can prevent the slide from blocking the black chicken oral liquid, thereby facilitating the collection of the filled black chicken oral liquid by the staff. However, the above device has the following technical problems when used:

[0003] In the existing technology, during the filling process of oral liquid bottles, the liquid is unevenly distributed and bubbles are easily generated. The existing filling equipment is not convenient for automatically achieving the discharge of oxygen from the oral liquid bottle and the injection of inert gas for protection during filling. At the same time, during the filling process of the existing equipment, the temperature difference between the bottle body and the liquid medicine is large, which can easily cause the bottle body to rupture or the properties of the liquid medicine to change.

[0004] Based on this, the present invention provides oral liquid line conveying and filling equipment to solve the technical problems raised in the above background technology. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, the present invention provides an oral liquid line conveying and filling equipment. In the present invention, the vibration frequency and vibration stroke change cyclically. High-frequency vibration can quickly fill the oral liquid into every corner of the bottle, thereby increasing the filling speed. Low-frequency vibration helps to expel bubbles in the liquid, making the filling more compact.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: oral liquid line conveying and filling equipment, including a base frame, a fixed valve cylinder, a lifting frame, a rotatable turntable and a fixed-point transmission system, the base frame is provided with loading and unloading stations, a gas injection station, a heating station and a filling station in a clockwise direction, four frequency conversion systems are installed on the turntable, each frequency conversion system is connected to a bottle holder that can vibrate up and down and alternately reverse, the vibration frequency and vibration stroke of the bottle holder change cyclically, an elastic pressure frame is slidably installed on the lifting frame and corresponding to the position of each bottle holder, the top surface of the elastic pressure frame is installed with a spring that is limited by the lifting frame, a follower rotary seat is rotatably installed on the elastic pressure frame, a group of air suction holes are opened in the follower rotary seat, and the follower rotary seat is provided with a plurality of air suction holes. An injection shaft is rotatably installed on the inner wall of the rotary seat, and multiple injection tubes are installed at the bottom of the injection shaft. Each injection tube is provided with multiple groups of spray holes. A shear shaft is rotatably installed on the inner wall of the injection shaft. The shear shaft and the injection shaft rotate in opposite directions coaxially. A paddle is installed on the shear shaft and at a position corresponding to the bottom of the injection tube. A bubble-removing float is provided on the injection shaft and at a position corresponding to the top of the injection tube. The bubble-removing float can slide on the injection shaft and rotate synchronously with the injection shaft. An injection chamber, an air injection chamber and a negative pressure chamber isolated from each other are provided inside the fixed valve cylinder. The spray holes are connected with the injection chamber at the injection station and with the air injection chamber at the air injection station. The air suction holes are connected with the negative pressure chamber at the injection station and the air injection station. An electric heating block is installed on the base frame and at a position corresponding to the heating station.

[0007] As a preferred technical solution of the present invention, the fixed-point transmission system includes two motors installed on the base frame, the output shaft end of one motor is fixedly connected to the rotating frame, a gear shaft is rotatably provided on the rotating frame, a first synchronous toothed belt is installed between the output shaft end of the other motor and the gear shaft, an active gear ring is installed on the gear shaft, a certain transmission shaft is rotatably installed on the base frame corresponding to the position of the pouring station, and a linkage gear meshing with the active gear ring is installed on the fixed transmission shaft.

[0008] As a preferred technical solution of the present invention, the frequency conversion system includes an excitation frame slidably connected to the rotating frame, a first straight shaft, a second straight shaft and an excitation screw rod rotatably connected to the rotating frame, the bottom end of the first straight shaft is installed with an internal gear meshing with a linkage gear, the first hollow shaft and the second hollow shaft are rotatably installed on the excitation frame, the first hollow shaft is linked to the first straight shaft, the second straight shaft is linked to the second hollow shaft, a high-frequency fan gear and a low-frequency fan gear are respectively installed on the first hollow shaft, and the first hollow shaft is between the corresponding high-frequency fan gear and the low-frequency fan gear. There are two symmetrically arranged toothless transmission sections in the position, two frequency conversion gears are installed on the second hollow shaft, and the two frequency conversion gears are respectively meshed with the high-frequency fan gear and the low-frequency fan gear. A second synchronous toothed belt is connected between the second straight shaft and the exciting screw rod, and the exciting screw rod is connected to the exciting frame. A supporting shaft is rotatably installed on the exciting frame, and a third synchronous toothed belt is connected between the second hollow shaft and the supporting shaft. The supporting shaft is fixedly connected to the bottle holder, and a steering torsion spring is provided at the rotating connection between the exciting screw rod and the rotating frame and the rotating connection between the second straight shaft and the rotating frame.

[0009] As a preferred technical solution of the present invention, the interior of the first hollow shaft is fixed with a through groove with openings at both ends and slidingly connected to the first straight shaft, and the interior of the second hollow shaft is fixed with a guide groove with openings at the bottom end and slidingly connected to the second straight shaft, and the cross-sections of the through groove, the guide groove, the first straight shaft and the second straight shaft are all regular hexagons.

[0010] As a preferred technical solution of the present invention, the center angle corresponding to the tooth meshing section on the high-frequency fan gear is 190°, the center angle corresponding to the tooth meshing section on the low-frequency fan gear is 140°, and the center angles corresponding to the two toothless transmission intervals are both 15°. The high-frequency fan gear and the low-frequency fan gear have the same radius, and the two variable frequency gears have the same radius. The radius of the high-frequency fan gear is 8 to 13 times the radius of the variable frequency gear.

[0011] As a preferred technical solution of the present invention, a group of air-permeable strip holes distributed in a circular array are provided on the debubble float, a plurality of groups of protrusions are installed on the bottom surface of the debubble float, the paddle is made of silicone material, micropores are evenly distributed on the paddle, a plurality of transmission guide bars are installed on the perfusion shaft, and a transmission guide groove slidably connected to the transmission guide bar is provided on the inner wall of the debubble float and at the position corresponding to each transmission guide bar.

[0012] As a preferred technical solution of the present invention, the elastic pressure frame is respectively rotatably mounted with a counter-transmission shaft and a differential shaft, the counter-transmission shaft is mounted with a reverse bevel gear, the follower rotary seat and the perfusion shaft are both mounted with a first bevel gear, the two first bevel gears are both transmission-connected with the reverse bevel gear, the two first bevel gears are respectively arranged on both sides of the reverse bevel gear, the differential shaft is mounted with a differential bevel gear, the perfusion shaft and the differential shaft are both mounted with a first differential bevel gear, the two first differential bevel gears are orthogonally meshed, the shear shaft and the differential shaft are both mounted with a second differential bevel gear, the two second differential bevel gears are orthogonally meshed, and the radii of the first differential bevel gear and the second differential bevel gear are different.

[0013] As a preferred technical solution of the present invention, the interior of the injection shaft is fixedly provided with an inner flow channel connected to the spray hole, the axis of the spray hole is perpendicular to the axis of the injection shaft, the interior of the elastic pressure frame is fixedly provided with an outer ring cavity, the outer ring cavity is rotatably connected to the inner flow channel, the interior of the fixed valve cylinder and the positions corresponding to the injection station and the gas injection station are provided with an upper valve hole and a lower valve hole, the two upper valve holes are respectively connected to the injection station and the gas injection station, the two lower valve holes are both connected to the negative pressure chamber, a movable valve cylinder is rotatably sleeved on the fixed valve cylinder, the outer ring cavity is connected to the A first corrugated metal coupling is connected between the movable valve cylinders, and the first corrugated metal coupling is adapted to be connected to the upper valve hole. An intake ring is rotatably sleeved on the movable rotary seat corresponding to the position outside the intake hole. A second corrugated metal coupling is connected between the intake ring and the movable valve cylinder, and the second corrugated metal coupling is adapted to be connected to the lower valve hole. A liquid inlet joint is connected to the perfusion chamber, and a gas injection joint is connected to the gas injection chamber. The gas injection joint is fixedly connected to the argon gas storage tank. A vacuum pump is installed on the base frame, and the vacuum generating port of the vacuum pump is connected to the negative pressure chamber.

[0014] As a preferred technical solution of the present invention, two vertically arranged lifting push rods are installed between the lifting frame and the base frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the prior art, liquid distribution in oral liquid bottles is uneven during the filling process, and bubbles are easily generated. The present invention uses a unique frequency conversion system. When the turntable rotates to the filling station, the linkage gear on the fixed transmission shaft drives the first straight shaft to rotate, and then the first hollow shaft rotates. The high-frequency fan gear and the low-frequency fan gear on the first hollow shaft alternately engage with the frequency conversion gear, driving the bottle holder to rotate, vibrate, and rotate forward and reverse. The vibration frequency and vibration stroke change cyclically. The high-frequency vibration can quickly fill the oral liquid into every corner of the bottle body, thereby increasing the filling speed. The low-frequency vibration helps to expel bubbles in the liquid, making the filling more dense. At the same time, the alternating forward and reverse rotation of the bottle holder further promotes uniform distribution of the liquid, greatly improving the filling quality, reducing the defective rate, and solving the problems of uneven liquid distribution and easy bubble generation in the prior art.

[0017] 2. The existing filling equipment is not convenient for automatically achieving the discharge of oxygen and injection of inert gas for protection in the oral liquid bottle during filling. The fixed valve cylinder and pipeline connection structure of the present invention realizes precise control of functions through the mutually isolated filling chamber, gas injection chamber and negative pressure chamber, as well as reasonable pipeline connection. At the filling station, the oral liquid is injected into the bottle through the filling chamber, the filling tube and the spray hole. At the gas injection station, argon gas is injected into the bottle through the gas injection chamber, which plays a role of protection and isolation. At the same time, at the filling station and the gas injection station, the vacuum pump generates negative pressure through the negative pressure chamber to suck out the air and excess gas in the oral liquid bottle, thereby ensuring the quality of filling, avoiding the problems of unclear separation of filling, gas injection and suction functions and gas leakage in the existing technology, and improving the safety and stability of filling.

[0018] 3. In the filling process of existing equipment, the temperature difference between the bottle body and the medicine liquid is large, which can easily cause the bottle body to break or the properties of the medicine liquid to change. The present invention sets an electric heating block at the heating station. Before the filling operation, the electric heating block heats the oral liquid bottle, which can reduce the viscosity of the medicine liquid and improve the fluidity of the medicine liquid by increasing the temperature in the bottle, so that the medicine liquid can pass through the filling tube and the nozzle more smoothly, ensuring the stability and accuracy of the filling, avoiding problems such as poor filling and dripping to improve efficiency and quality. At the same time, it can reduce the temperature difference between the bottle body and the medicine liquid, reduce the bottle body breakage or changes in the properties of the medicine liquid caused by temperature difference impact, protect the integrity of the bottle body and ensure the quality of the medicine liquid. In addition, the appropriate bottle body temperature can also improve the surface tension and interface characteristics of the medicine liquid, so that it can better adhere to the bottle wall, reduce the generation and aggregation of bubbles, create favorable conditions for the subsequent defoaming process, and further improve the quality of the finished product of oral liquid filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the lifting frame and the electric heating block of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the rotating rack and the driving ring gear of the present invention;

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the cross-section structure;

[0022] Figure 4 For the present invention Figure 3 Schematic diagram of the local enlarged structure at A in the middle;

[0023] Figure 5 For the present invention Figure 3 Schematic diagram of the local enlarged structure at B in the middle;

[0024] Figure 6 For the present invention Figure 3 Schematic diagram of the local enlarged structure at C in the middle;

[0025] Figure 7 This is a schematic structural diagram of the defoaming float and shear shaft of the present invention;

[0026] Figure 8 Schematic diagram of the structure of the first corrugated metal connecting pipe and the follower rotary seat of the present invention;

[0027] Figure 9 It is a structural schematic diagram of the rotary frame and the first straight axis of the present invention;

[0028] Figure 10 It is a structural schematic diagram of the vibration frame and high-frequency fan gear of the present invention.

[0029] In the figure: 1, base frame; 2, fixed valve cylinder; 3, lifting frame; 4, rotating frame; 5, bottle holder; 6, elastic pressure frame; 7, spring; 8, follower rotary seat; 9, suction hole; 10, filling shaft; 11, shearing shaft; 12, filling pipe; 13, spray hole; 14, paddle; 15, bubble removal float; 16, filling chamber; 17, gas injection chamber; 18, negative pressure chamber; 19, electric heating block; 20, motor; 21, gear shaft; 22, driving gear ring; 23, fixed transmission shaft; 24, linkage gear; 25, vibration frame; 26, first straight axis; 2 7. Second straight shaft; 28. Excitation screw; 29. ​​Internal gear; 30. First hollow shaft; 31. Second hollow shaft; 32. High-frequency fan gear; 33. Low-frequency fan gear; 34. Frequency conversion gear; 35. Support shaft; 36. Steering torsion spring; 37. Breathing strip hole; 38. Reverse transmission shaft; 39. Differential shaft; 40. Outer ring cavity; 41. Upper valve hole; 42. Lower valve hole; 43. Moving valve cylinder; 44. First corrugated metal connecting pipe; 45. Suction ring; 46. Second corrugated metal connecting pipe; 47. Vacuum pump; 48. Lifting push rod. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figures 1 to 10 As shown, the present invention provides an oral liquid line conveying and filling device, comprising a base frame 1, a fixed valve cylinder 2, a lifting frame 3, a rotatable rotating frame 4 and a fixed-point transmission system;

[0032] Two vertically arranged lifting push rods 48 are installed between the lifting frame 3 and the base frame 1;

[0033] The base frame 1 is provided with loading and unloading stations, gas injection stations, heating stations and pouring stations in a clockwise direction. The rotating frame 4 is equipped with four frequency conversion systems. Each frequency conversion system is connected to a bottle holder 5 that can vibrate up and down and alternately rotate forward and reverse. The vibration frequency and vibration stroke of the bottle holder 5 change cyclically.

[0034] The bottle holder 5 is used for positioning and installing the oral liquid bottle. The specifications of the bottle holder 5 are adapted to the specifications of the oral liquid bottle to be filled.

[0035] During conveying and filling, the oral liquid bottles are conveyed and loaded and unloaded on the bottle holder 5 by an external manipulator;

[0036] In actual production, the specifications of the bottle holder 5 and the proportions and specifications of the response structure in this device should be customized according to the specifications of the actual oral liquid bottle;

[0037] The fixed-point transmission system includes two motors 20 mounted on the base frame 1. The output shaft end of one motor 20 is fixedly connected to the rotating frame 4. A gear shaft 21 is rotatably mounted on the rotating frame 4. A first synchronous toothed belt is installed between the output shaft end of the other motor 20 and the gear shaft 21. A driving ring gear 22 is installed on the gear shaft 21. A fixed transmission shaft 23 is rotatably mounted on the base frame 1 and corresponds to the position of the pouring station. A linkage gear 24 is installed on the fixed transmission shaft 23 and meshes with the driving ring gear 22.

[0038] During the operation of the oral liquid line conveying and filling equipment, the fixed-point transmission system plays a key transmission role. Two motors 20 work together. One motor 20 drives the turret 4 to rotate, so that the bottle holder 5 installed on the turret 4 can pass through the loading and unloading station, gas injection station, heating station and filling station in a set time sequence or interval period, realizing the orderly flow of oral liquid bottles. The other motor 20 drives the gear shaft 21 to rotate through the first synchronous toothed belt. The active ring gear 22 on the gear shaft 21 meshes with the linkage gear 24 on the fixed transmission shaft 23. When the turret 4 rotates to the filling station, this meshing transmission can accurately transmit power to the corresponding components to ensure the stable progress of the filling work.

[0039] The fixed-point transmission system of the present invention improves the stability and accuracy of transmission through precise gear meshing and synchronous toothed belt transmission, making the connection between various workstations smoother, greatly improving the filling efficiency and quality, and reducing the defective rate;

[0040] The frequency conversion system includes an excitation frame 25 slidably connected to the rotating frame 4, a first straight shaft 26, a second straight shaft 27 and an excitation screw 28 rotatably connected to the rotating frame 4. The bottom end of the first straight shaft 26 is equipped with an internal gear 29 that meshes with the linkage gear 24. The excitation frame 25 is rotatably equipped with a first hollow shaft 30 and a second hollow shaft 31. The first hollow shaft 30 is linked to the first straight shaft 26, and the second straight shaft 27 is linked to the second hollow shaft 31.

[0041] The first hollow shaft 30 is internally provided with a through-groove with both ends open and slidably connected to the first straight shaft 26. The second hollow shaft 31 is internally provided with a guide groove with a bottom end open and slidably connected to the second straight shaft 27. The cross-sections of the through-groove, the guide groove, the first straight shaft 26, and the second straight shaft 27 are all regular hexagons.

[0042] A high-frequency sector gear 32 and a low-frequency sector gear 33 are mounted on the first hollow shaft 30, respectively. Two symmetrically arranged toothless transmission sections are provided on the first hollow shaft 30 at positions corresponding to the high-frequency sector gear 32 and the low-frequency sector gear 33. Two frequency conversion gears 34 are mounted on the second hollow shaft 31, and the two frequency conversion gears 34 are meshed with the high-frequency sector gear 32 and the low-frequency sector gear 33, respectively.

[0043] The center angle corresponding to the toothed meshing section on the high-frequency sector gear 32 is 190°, the center angle corresponding to the toothed meshing section on the low-frequency sector gear 33 is 140°, and the center angles corresponding to the two toothless transmission sections are both 15°. The high-frequency sector gear 32 and the low-frequency sector gear 33 have the same radius, and the two frequency conversion gears 34 have the same radius. The radius of the high-frequency sector gear 32 is 12 times the radius of the frequency conversion gear 34.

[0044] A second synchronous toothed belt is connected between the second straight shaft 27 and the exciting screw 28, which is in transmission connection with the exciting frame 25. A supporting shaft 35 is rotatably mounted on the exciting frame 25. A third synchronous toothed belt is connected between the second hollow shaft 31 and the supporting shaft 35. The supporting shaft 35 is fixedly connected to the bottle holder 5. Steering torsion springs 36 are provided at the rotational connection between the exciting screw 28 and the rotating frame 4 and at the rotational connection between the second straight shaft 27 and the rotating frame 4.

[0045] When the turret 4 rotates to the pouring station, the linkage gear 24 on the fixed transmission shaft 23 in the fixed-point transmission system meshes with the internal gear 29 at the bottom end of the first straight shaft 26, thereby driving the first straight shaft 26 to rotate. Since the first straight shaft 26 is linked with the first hollow shaft 30, the first hollow shaft 30 also rotates accordingly. A high-frequency fan gear 32 and a low-frequency fan gear 33 are installed on the first hollow shaft 30, and a toothless transmission section is provided between them. The two frequency conversion gears 34 on the second hollow shaft 31 are meshed and connected with the high-frequency fan gear 32 and the low-frequency fan gear 33 respectively. As the first hollow shaft 30 rotates, the high-frequency fan gear 32 and the low-frequency fan gear 33 alternately mesh with the variable frequency gears. The frequency gear 34 is engaged, driving the second hollow shaft 31 to rotate, and the second hollow shaft 31 drives the supporting shaft 35 to rotate through the third synchronous toothed belt, thereby rotating the bottle holder 5; at the same time, the second straight shaft 27 is linked with the second hollow shaft 31, and the second straight shaft 27 drives the exciting screw 28 to rotate through the second synchronous toothed belt, and the exciting screw 28 is transmission-connected to the exciting frame 25, so that the exciting frame 25 slides on the rotating frame 4. Since the rotating connection between the exciting screw 28 and the rotating frame 4 and the rotating connection between the second straight shaft 27 and the rotating frame 4 are both provided with a steering torsion spring 36, this enables the bottle holder 5 to achieve reciprocating vibration up and down and alternating forward and reverse rotation, and the vibration frequency and vibration stroke change cyclically;

[0046] The steering torsion spring 36 is made of aviation-grade spring steel to avoid fatigue fracture under high-frequency vibration;

[0047] This solution solves the problems of uneven liquid distribution and easy generation of bubbles during the filling process of oral liquid bottles in the prior art. Compared with the prior art, this frequency conversion system makes the vibration of the bottle holder 5 more diversified through the transmission mode of alternating high and low frequencies, which can better adapt to the characteristics of different oral liquids. When vibrating at high frequencies, the oral liquid can be quickly filled into every corner of the bottle body, thereby improving the filling speed; when vibrating at low frequencies, it helps to expel bubbles in the liquid, making the filling more dense. At the same time, the alternating forward and reverse rotation of the bottle holder 5 can further promote the uniform distribution of the liquid, greatly improving the filling quality, reducing the defective rate, and improving production efficiency.

[0048] An elastic pressure frame 6 is slidably mounted on the lifting frame 3 and corresponding to the position of each bottle holder 5. A spring 7 limited by the lifting frame 3 is mounted on the top surface of the elastic pressure frame 6. A follower rotary seat 8 is rotatably mounted on the elastic pressure frame 6.

[0049] When the oral liquid bottle is installed, the follower rotary seat 8 presses the oral liquid bottle, and the rotation of the oral liquid bottle drives the follower rotary seat 8 to rotate;

[0050] A set of suction holes 9 are provided in the follower rotary seat 8. A perfusion shaft 10 is rotatably mounted on the inner wall of the follower rotary seat 8. A plurality of perfusion tubes 12 are mounted at the bottom of the perfusion shaft 10. Each perfusion tube 12 has a plurality of spray holes 13. A shear shaft 11 is rotatably mounted on the inner wall of the perfusion shaft 10. The shear shaft 11 rotates coaxially with the perfusion shaft 10 in the opposite direction.

[0051] The elastic pressure frame 6 is rotatably mounted with a counter-transmission shaft 38 and a differential shaft 39, and a counter-transmission shaft 38 is mounted with a counter-transmission bevel gear. The follower rotary seat 8 and the perfusion shaft 10 are both mounted with a first bevel gear. The two first bevel gears are transmission-connected with the counter-transmission bevel gear. The two first bevel gears are respectively arranged on both sides of the counter-transmission bevel gear. A differential bevel gear is mounted on the differential shaft 39. The perfusion shaft 10 and the differential shaft 39 are both mounted with a first differential bevel gear. The two first differential bevel gears are orthogonally meshed. The shear shaft 11 and the differential shaft 39 are both mounted with a second differential bevel gear. The two second differential bevel gears are orthogonally meshed. The radius of the first differential bevel gear is different from that of the second differential bevel gear.

[0052] The transmission structure of the reverse transmission shaft 38 and the differential shaft 39 on the elastic pressure frame 6 plays an important role in the oral liquid line conveying and filling process. When the follower rotary seat 8 rotates, the infusion shaft 10 is driven to rotate in the opposite direction through the reverse bevel gear. At the same time, the differential shaft 39, through the meshing of the first differential bevel gear and the second differential bevel gear, causes the shear shaft 11 and the infusion shaft 10 to rotate coaxially and in the opposite direction.

[0053] During the filling process, the rotation of the filling shaft 10 can drive the filling tube 12 to rotate, so that the oral liquid is sprayed more evenly into the oral liquid bottle, and the reverse rotation of the shearing shaft 11 enables the paddle 14 installed on the shearing shaft 11 to shear the oral liquid, further reducing bubbles in the oral liquid. At the same time, due to the different radii of the first differential bevel gear and the second differential bevel gear, different speed differences can be achieved to better meet different filling requirements.

[0054] A paddle 14 is installed on the shear shaft 11 at a position corresponding to the bottom of the perfusion pipe 12, and a bubble removal float 15 is sleeved on the perfusion shaft 10 at a position corresponding to the top of the perfusion pipe 12. The bubble removal float 15 can slide on the perfusion shaft 10 and rotate synchronously with the perfusion shaft 10;

[0055] The de-bubble float plate 15 is provided with a group of air permeable strip holes 37 distributed in a circumferential array. The bottom surface of the de-bubble float plate 15 is provided with a plurality of groups of protrusions. The paddle 14 is made of silicone and is evenly distributed with micropores. The perfusion shaft 10 is provided with a plurality of transmission guide bars. The inner wall of the de-bubble float plate 15 is provided with a transmission guide groove corresponding to each transmission guide bar, which is slidably connected to the transmission guide bar.

[0056] During the oral liquid line conveying and filling process, the bubble removal float plate 15 and the paddle 14 structure can effectively eliminate bubbles in the oral liquid. When the infusion shaft 10 rotates, the bubble removal float plate 15 rotates synchronously with the infusion shaft 10 through the transmission guide bar and can slide on the infusion shaft 10. The air permeable strip holes 37 on the bubble removal float plate 15 can allow bubbles to be discharged smoothly. The convex particles on the bottom surface can stir the oral liquid during the rotation process, further destroying bubbles.

[0057] At the same time, during the rotation of the silica gel blade 14 mounted on the shear shaft 11, the micropores on its surface can absorb and break the bubbles. The reverse rotation of the blade 14 and the perfusion shaft 10 makes it easier to eliminate the bubbles under the action of both.

[0058] The interior of the fixed valve cylinder 2 is provided with a perfusion chamber 16, an air injection chamber 17 and a negative pressure chamber 18 which are isolated from each other. The nozzle 13 is connected with the perfusion chamber 16 at the perfusion station and with the air injection chamber 17 at the air injection station. The suction hole 9 is connected with the negative pressure chamber 18 at the perfusion station and the air injection station. An electric heating block 19 is installed on the base frame 1 at the position corresponding to the heating station.

[0059] The heating temperature of the electric heating block 19 is 50°C ± 2°C;

[0060] The electric heating block 19 is controlled by a temperature sensor and PLC closed loop;

[0061] Before the perfusion operation, the electric heating block 19 heats the oral liquid bottle to reduce the viscosity of the liquid and improve the fluidity of the liquid by increasing the temperature inside the bottle, so that the liquid passes through the perfusion tube 12 and the nozzle 13 more smoothly, ensuring the stability and accuracy of the perfusion, avoiding problems such as poor perfusion and dripping, and improving efficiency and quality;

[0062] At the same time, it can reduce the temperature difference between the bottle and the liquid, reduce the risk of bottle breakage or changes in liquid properties caused by temperature shock, protect the integrity of the bottle and ensure the quality of the liquid. In addition, the appropriate bottle temperature can also improve the surface tension and interfacial properties of the liquid, allowing it to better adhere to the bottle wall, reduce bubble generation and aggregation, create favorable conditions for the subsequent defoaming process, and further improve the quality of the finished oral liquid filling product;

[0063] An inner flow channel connected to the nozzle hole 13 is fixedly opened inside the injection shaft 10, and the axis of the nozzle hole 13 is perpendicular to the axis of the injection shaft 10. An outer ring cavity 40 is fixedly opened inside the elastic pressure frame 6, and the outer ring cavity 40 is rotatably connected to the inner flow channel. An upper valve hole 41 and a lower valve hole 42 are respectively opened inside the fixed valve cylinder 2 at positions corresponding to the injection station and the gas injection station. The two upper valve holes 41 are respectively connected to the injection station and the gas injection station, and the two lower valve holes 42 are both connected to the negative pressure chamber 18. A movable valve cylinder 43 is rotatably sleeved on the fixed valve cylinder 2;

[0064] A rotating sealing ring is provided between the movable valve cylinder (43) and the fixed valve cylinder (2);

[0065] A first corrugated metal coupling 44 is connected between the outer ring cavity 40 and the movable valve cylinder 43. The first corrugated metal coupling 44 is adapted to communicate with the upper valve hole 41. An air suction ring 45 is rotatably sleeved on the movable rotary seat 8 and corresponds to a position outside the air suction hole 9. A second corrugated metal coupling 46 is connected between the air suction ring 45 and the movable valve cylinder 43. The second corrugated metal coupling 46 is adapted to communicate with the lower valve hole 42.

[0066] The second corrugated metal connecting pipe 46 is equipped with a one-way exhaust valve, through which the second corrugated metal connecting pipe 46 can only discharge gas in one direction;

[0067] The perfusion chamber 16 is connected to a liquid inlet connector, the gas injection chamber 17 is connected to a gas injection connector, the gas injection connector is fixedly connected to the argon storage tank, a vacuum pump 47 is installed on the base frame 1, and the vacuum generating port of the vacuum pump 47 is connected to the negative pressure chamber 18.

[0068] The fixed valve cylinder 2 and the pipeline connection structure realize the functions of perfusion, gas injection and negative pressure suction during the oral liquid line conveying and filling process. At the perfusion station, the inner flow channel inside the perfusion shaft 10 is connected to the perfusion chamber 16 of the fixed valve cylinder 2 through the outer ring cavity 40 and the first corrugated metal connecting pipe 44. The oral liquid enters the perfusion chamber 16 through the liquid inlet joint and is then injected into the oral liquid bottle through the nozzle 13. At the gas injection station, the nozzle 13 is connected to the gas injection chamber 17 through the same pipeline connection method. Argon gas enters the gas injection chamber 17 through the gas injection joint and is then injected into the oral liquid bottle, playing a protective and isolating role.

[0069] During gas injection, the gas injection rate, gas injection flow rate and gas injection pressure of the gas injection connector are greater than the suction rate of the negative pressure chamber 18. During gas injection, the negative pressure chamber 18 is used to absorb excess air. After the specified gas injection time, the gas injection connector is automatically closed.

[0070] At the same time, at the filling station and the gas injection station, the suction hole 9 in the follower seat 8 is connected to the negative pressure chamber 18 of the fixed valve cylinder 2 through the suction ring 45 and the second corrugated metal connecting pipe 46. The vacuum pump 47 generates negative pressure through the negative pressure chamber 18 to suck out the air and excess gas in the oral liquid bottle, thereby ensuring the quality of filling;

[0071] In the prior art, there are problems such as unclear separation of the filling, gas injection and suction functions and gas leakage. However, the fixed valve cylinder 2 and pipeline connection structure of the present invention achieve precise control of functions through the mutually isolated filling chamber 16, gas injection chamber 17 and negative pressure chamber 18, as well as reasonable pipeline connection, thereby avoiding gas leakage and improving the safety and stability of filling.

[0072] The first corrugated metal coupling tube 44 and the second corrugated metal coupling tube 46 are both 316L stainless steel.

[0073] The working principle and use process of the present invention:

[0074] The working process of the oral liquid line conveying and filling equipment of the present invention is as follows: first, the bottle holder 5 and related structures are customized according to the specifications of the oral liquid bottle, the oral liquid bottle is placed on the bottle holder 5 with an external manipulator, the liquid inlet and gas injection joints are connected and the vacuum pump 47 is turned on, and the two motors 20 of the fixed-point transmission system cooperate to rotate the rotating frame 4, and the bottle holder 5 passes through each station in turn. At the heating station, the electric heating block 19 heats the oral liquid bottle to reduce the viscosity of the liquid, reduce the temperature difference, and improve the characteristics of the liquid. When it reaches the filling station, the linkage gear 24 drives the first straight shaft 26 to rotate the first hollow shaft 30, and the high-frequency and low-frequency fan gears 33 alternately rotate with the frequency conversion gear 34. The engagement allows the bottle holder 5 to rotate, vibrate and rotate forward and reverse to promote liquid filling and uniform distribution. During infusion, the oral liquid is injected into the bottle through the infusion chamber 16, the infusion tube 12 and the nozzle 13. The infusion shaft 10 and the shear shaft 11 rotate in opposite directions, the paddle 14 shears, and the bubble removal float 15 and the paddle 14 eliminate bubbles. At the same time, the vacuum pump 47 sucks out the gas in the bottle through the negative pressure chamber 18. At the gas injection station, argon gas is injected into the bottle for protection and isolation. The vacuum pump 47 also sucks out excess gas. Finally, at the loading and unloading station, the robot completes the unloading and loading of new bottles, starting a new round of processes. The various components work together to improve the filling efficiency and quality and reduce the defective rate.

[0075] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0076] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An oral liquid line conveying and filling device, comprising a base frame (1), a fixed valve cylinder (2), a lifting frame (3), a rotatable rotating frame (4) and a fixed-point transmission system, characterized in that: The base frame (1) is provided with loading and unloading stations, gas injection stations, heating stations and pouring stations in a clockwise direction. Four frequency conversion systems are installed on the rotating frame (4). Each frequency conversion system is connected to a bottle holder (5) that can vibrate up and down and alternately rotate forward and reverse. The vibration frequency and vibration stroke of the bottle holder (5) change cyclically. An elastic pressure frame (6) is slidably installed on the lifting frame (3) and corresponding to the position of each bottle holder (5). A spring (7) that is limited by the lifting frame (3) is installed on the top surface of the elastic pressure frame (6). A follower rotary seat (8) is rotatably installed on the elastic pressure frame (6). A group of air suction holes (9) are opened in the follower rotary seat (8). A pouring shaft (10) is rotatably installed on the inner wall of the follower rotary seat (8). A plurality of pouring pipes (12) are installed at the bottom of the pouring shaft (10). Each pouring pipe (12) is provided with a plurality of spray holes (13). The inner wall of the perfusion shaft (10) is rotatably mounted with a shear shaft (11), the shear shaft (11) and the perfusion shaft (10) rotate in opposite directions coaxially, a paddle (14) is mounted on the shear shaft (11) and at a position corresponding to the bottom of the perfusion pipe (12), and a bubble removal float (15) is sleeved on the perfusion shaft (10) and at a position corresponding to the top of the perfusion pipe (12), the bubble removal float (15) can slide on the perfusion shaft (10) and rotate with the perfusion shaft (10). 0) rotate synchronously, the interior of the fixed valve cylinder (2) is provided with a perfusion chamber (16), an air injection chamber (17) and a negative pressure chamber (18) which are isolated from each other, the spray hole (13) is connected with the perfusion chamber (16) at the perfusion station and is connected with the air injection chamber (17) at the air injection station, the air suction hole (9) is connected with the negative pressure chamber (18) at the perfusion station and the air injection station, and an electric heating block (19) is installed on the base frame (1) at a position corresponding to the heating station.

2. The oral liquid line conveying and filling equipment according to claim 1, characterized in that: The fixed-point transmission system comprises two motors (20) mounted on a base frame (1), the output shaft end of one motor (20) being fixedly connected to a rotating frame (4), a gear shaft (21) being rotatably sleeved on the rotating frame (4), a first synchronous toothed belt being installed between the output shaft end of the other motor (20) and the gear shaft (21), an active ring gear (22) being installed on the gear shaft (21), a fixed transmission shaft (23) being rotatably mounted on the base frame (1) and corresponding to the position of the pouring station, and a linkage gear (24) being meshed with the active ring gear (22) being installed on the fixed transmission shaft (23).

3. The oral liquid line conveying and filling equipment according to claim 1 is characterized in that: The frequency conversion system includes an excitation frame (25) slidably connected to the rotating frame (4), a first straight shaft (26) rotatably connected to the rotating frame (4), a second straight shaft (27) and an excitation screw (28), the bottom end of the first straight shaft (26) is equipped with an internal gear (29) meshing with the linkage gear (24), and the excitation frame (25) is rotatably equipped with a first hollow shaft (30) and a second hollow shaft (31), the first hollow shaft (30) is linked to the first straight shaft (26), and the second straight shaft (27) is linked to the second hollow shaft (31), and a high-frequency fan gear (32) and a low-frequency fan gear (33) are respectively installed on the first hollow shaft (30), and a gear is provided on the first hollow shaft (30) at a position corresponding to the high-frequency fan gear (32) and the low-frequency fan gear (33). There are two symmetrically arranged toothless transmission sections, two frequency conversion gears (34) are installed on the second hollow shaft (31), and the two frequency conversion gears (34) are respectively engaged with the high-frequency fan gear (32) and the low-frequency fan gear (33), a second synchronous toothed belt is connected between the second straight shaft (27) and the exciting screw (28), the exciting screw (28) is connected to the exciting frame (25), a supporting shaft (35) is rotatably installed on the exciting frame (25), a third synchronous toothed belt is connected between the second hollow shaft (31) and the supporting shaft (35), the supporting shaft (35) is fixedly connected to the bottle holder (5), and a steering torsion spring (36) is provided at the rotation connection between the exciting screw (28) and the rotating frame (4) and the rotation connection between the second straight shaft (27) and the rotating frame (4).

4. The oral liquid line conveying and filling equipment according to claim 3 is characterized in that: The first hollow shaft (30) is fixedly provided with a through groove with openings at both ends and slidably connected to the first straight shaft (26). The second hollow shaft (31) is fixedly provided with a guide groove with an opening at the bottom end and slidably connected to the second straight shaft (27). The cross sections of the through groove, the guide groove, the first straight shaft (26) and the second straight shaft (27) are all regular hexagons.

5. The oral liquid line conveying and filling equipment according to claim 3 is characterized in that: The center angle corresponding to the toothed meshing section on the high-frequency sector gear (32) is 190°, the center angle corresponding to the toothed meshing section on the low-frequency sector gear (33) is 140°, and the center angles corresponding to the two toothless transmission sections are both 15°. The high-frequency sector gear (32) and the low-frequency sector gear (33) have the same radius, and the two variable frequency gears (34) have the same radius. The radius of the high-frequency sector gear (32) is 8 to 13 times the radius of the variable frequency gear (34).

6. The oral liquid line conveying and filling equipment according to claim 1, characterized in that: The de-bubble float (15) is provided with a group of air-permeable strip holes (37) distributed in a circumferential array, the bottom surface of the de-bubble float (15) is provided with a plurality of groups of protrusions, the paddle (14) is made of silica gel, and micropores are evenly distributed on the paddle (14), and a plurality of transmission guide bars are installed on the perfusion shaft (10), and the inner wall of the de-bubble float (15) and the position corresponding to each transmission guide bar are provided with a transmission guide groove slidably connected to the transmission guide bar.

7. The oral liquid line conveying and filling equipment according to claim 1, characterized in that: The elastic pressure frame (6) is rotatably mounted with a reverse transmission shaft (38) and a differential shaft (39), and the reverse transmission shaft (38) is mounted with a reverse bevel gear. The follower rotary seat (8) and the pouring shaft (10) are both mounted with a first bevel gear, and the two first bevel gears are both transmission-connected with the reverse bevel gear. The two first bevel gears are respectively arranged on both sides of the reverse bevel gear. The differential shaft (39) is mounted with a differential bevel gear, and the pouring shaft (10) and the differential shaft (39) are both mounted with a first differential bevel gear, and the two first differential bevel gears are orthogonally meshed. The shear shaft (11) and the differential shaft (39) are both mounted with a second differential bevel gear, and the two second differential bevel gears are orthogonally meshed. The radius of the first differential bevel gear is different from that of the second differential bevel gear.

8. The oral liquid line conveying and filling equipment according to claim 1, characterized in that: The interior of the injection shaft (10) is fixedly provided with an inner flow channel connected to the spray hole (13), and the axis of the spray hole (13) is perpendicular to the axis of the injection shaft (10). The interior of the elastic pressure frame (6) is fixedly provided with an outer ring cavity (40), and the outer ring cavity (40) is rotatably connected to the inner flow channel. The interior of the fixed valve cylinder (2) and the positions corresponding to the injection station and the gas injection station are provided with an upper valve hole (41) and a lower valve hole (42). The two upper valve holes (41) are respectively connected to the injection station and the gas injection station, and the two lower valve holes (42) are both connected to the negative pressure chamber (18). A movable valve cylinder (43) is rotatably sleeved on the fixed valve cylinder (2), and the outer ring cavity (40) is connected to the movable valve cylinder (43). There is a first corrugated metal connecting pipe (44), which is adapted to be connected to the upper valve hole (41). An air suction ring (45) is rotatably sleeved on the follower rotary seat (8) and corresponds to the position outside the air suction hole (9). A second corrugated metal connecting pipe (46) is connected between the air suction ring (45) and the movable valve cylinder (43). The second corrugated metal connecting pipe (46) is adapted to be connected to the lower valve hole (42). A liquid inlet joint is connected to the perfusion chamber (16), and a gas injection joint is connected to the gas injection chamber (17). The gas injection joint is fixedly connected to the argon gas storage tank. A vacuum pump (47) is installed on the base frame (1), and the vacuum generating port of the vacuum pump (47) is connected to the negative pressure chamber (18).

9. The oral liquid line conveying and filling equipment according to claim 1, characterized in that: Two vertically arranged lifting push rods (48) are installed between the lifting frame (3) and the base frame (1).

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