Filling valve of a beverage filling machine

Abstract

The present invention discloses a filling valve for a beverage filling machine, belonging to the technical field of filling valves. The present invention includes a mounting frame and an electric cylinder fixedly arranged on the mounting frame. A valve seat is fixedly arranged on the mounting frame. A liquid injection assembly is slidably arranged inside the valve seat. A plugging assembly is arranged inside the valve seat. A pair of connecting components are slidably arranged on the plugging assembly. A pushing component is fixedly sleeved on the liquid injection assembly, and the lower end of the pushing component is movably connected to the connecting component. A transmission component and a sealing component are respectively rotatably arranged in the lower part of the inner cavity of the valve seat. A pressure regulating component is also slidably arranged inside the plugging component. Even if there is an airtightness problem during the filling process, the present invention does not need to stop the machine for maintenance, improving the emergency response ability during the use of the device; through the setting of the pressure regulating component, it is used to adjust the problem of air pressure imbalance between the beverage bottle and the liquid storage tank, and finally ensure that the whole filling process is in a pressure balance state.

Description

Technical Field

[0001] The present invention belongs to the technical field of filling valves, and specifically relates to a filling valve for a beverage filling machine. Background Art

[0002] A beverage filling valve is a mechanism for achieving quantitative filling of beverages. According to the filling method, beverage filling valves can be divided into atmospheric pressure filling valves, negative pressure filling valves, isobaric filling valves, and pressure filling valves to be applicable to different types of beverage filling. Before filling a carbonated beverage, carbon dioxide or sterile air is filled into the beverage bottle through an isobaric filling valve to make the pressure in the bottle consistent with the pressure in the liquid storage tank, and then the beverage is filled into the beverage bottle through the isobaric filling valve. At this time, due to the pressure balance effect, the beverage flows smoothly into the beverage bottle by its own weight, which can reduce bubble disturbance and liquid level fluctuation, and is conducive to achieving precise filling.

[0003] For the current isobaric filling valve, before filling, the bottle mouth of the beverage bottle is blocked by a blocking component, and then carbon dioxide or sterile air is filled into the beverage bottle to make the pressure in the bottle consistent with the pressure in the liquid storage tank, and then the beverage is filled. However, due to long-term use, the above-mentioned blocking component will age, wear, and deform, resulting in the inability of the blocking component to closely fit with the bottle mouth of the beverage bottle, thereby reducing the air pressure in the bottle and causing an air pressure imbalance phenomenon. A large amount of foam will appear during filling, which not only poses a risk of beverage splashing, but also reduces the filling accuracy, ultimately affecting the product yield. In addition, during the filling process, if there is an error in the accuracy of the air intake mechanism on the isobaric filling valve, it will also cause the pressure in the bottle to be inconsistent with the pressure in the liquid storage tank, and a large amount of foam will still appear, which will also affect the filling accuracy.

[0004] Therefore, we propose a filling valve for a beverage filling machine to solve the above-mentioned problems. Summary of the Invention

[0005] Aiming at the problems existing in the prior art that due to long-term use, the blocking component ages, wears, and deforms, resulting in the inability of the blocking component to closely fit with the bottle mouth of the beverage bottle, an air pressure imbalance phenomenon occurs, and a large amount of foam appears during filling, which not only poses a risk of beverage splashing, but also reduces the filling accuracy. In addition, when there is an error in the accuracy of the air intake mechanism on the isobaric filling valve, it will cause the pressure in the bottle to be inconsistent with the pressure in the liquid storage tank, thereby affecting the filling accuracy. The purpose of the present invention is to provide a filling valve for a beverage filling machine.

[0006] In order to solve the above problems, the technical scheme adopted by the present invention is as follows: a filling valve of a beverage filling machine, comprising a mounting frame and an electric cylinder fixedly arranged on the mounting frame, a valve seat is fixedly arranged on the mounting frame, a beverage bottle is arranged at the bottom of the valve seat, a liquid injection component is slidably arranged inside the valve seat, a plugging component is arranged inside the valve seat, an electronic air valve 1 is fixedly arranged on the circumferential outer wall of the lower end of the valve seat, the electronic air valve 1 and the plugging component are connected through an air pipe, an air pressure sensor is fixedly arranged inside the plugging component, a pair of connecting components are slidably arranged on the plugging component, a pushing component is fixedly sleeved on the liquid injection component, and the lower end of the pushing component is movably connected to the connecting component, a transmission component and a sealing component are rotatably arranged at the lower part of the inner cavity of the valve seat, and the transmission component and the sealing component are in abutment contact with each other, and a pressure regulating component is also slidably arranged inside the plugging component;

[0007] The sealing assembly comprises a plurality of L-shaped brackets slidably arranged in the inner cavity of the valve seat, the L-shaped brackets are elastically connected to the side wall of the inner cavity of the valve seat via a spring, and a sealing cover is rotatably mounted on the plurality of L-shaped brackets;

[0008] The sealing cover comprises a cap rotatably mounted on an L-shaped bracket, a cavity is provided inside the cap, an annular plate is slidably mounted in the cavity, an annular piston is fixedly mounted on the top surface of the annular plate, and the bottom surface of the annular plate and the bottom wall of the cavity are elastically connected via a spring 6, a self-expanding sealing gasket is embedded and fixedly mounted at the opening of the horizontal section of the cavity, a plurality of baffles are fixedly mounted on the side wall of the annular plate, a plurality of make way grooves are provided on the side wall of the inner ring of the cap, and the baffles are slidably arranged in the inner cavity of the make way grooves.

[0009] Furthermore, the valve seat includes a valve seat body, a ring groove is provided at the lower end of the inner cavity of the valve seat body, and a plurality of vertical mounting grooves are respectively provided on the side walls of the ring groove. The L-shaped bracket is slidably installed in the inner cavity of the vertical mounting groove, and the bottom surface of the L-shaped bracket is elastically connected to the bottom surface of the inner cavity of the ring groove by a spring.

[0010] Furthermore, the injection assembly includes an upper injection tube slidably installed on the valve seat body and a lower injection tube slidably installed on the sealing assembly, and the upper injection tube and the lower injection tube are connected by a bellows, and an injection port is provided at the upper end of the upper injection tube, and the upper injection tube and the valve seat body are elastically connected by spring 2, and a pair of slideways are symmetrically provided on the top surface of the lower injection tube, and connecting rods are slidably installed inside the two slideways, and the top ends of the two connecting rods are fixedly connected to the bottom surface of the upper injection tube, and the upper injection tube and the lower injection tube are elastically connected by spring 3, and a pair of blocks are fixedly installed on the circumferential outer wall of the lower injection tube.

[0011] Further, the plugging assembly includes a plugging block. A pair of sliding grooves are symmetrically formed on the side wall of the plugging block. The connecting assembly is slidably installed inside the sliding grooves. An exhaust passage and an air intake passage are respectively formed inside the plugging block. A pressure regulating assembly is arranged in the inner cavity of the exhaust passage. The air intake passage is communicated with the first electronic air valve through a trachea. A fixing frame is fixedly installed at the lower end of the inner cavity of the valve seat body. The fixing frame and the plugging block are elastically connected through a fourth spring. A pair of limiting grooves are further formed on the plugging block, and the clamping blocks are slidably arranged inside the limiting grooves.

[0012] Further, the connecting assembly includes a slider. The slider is slidably installed inside the sliding groove. The slider is provided with internal threads. The bottom surface of the slider and the bottom surface of the inner cavity of the sliding groove are elastically connected through a fifth spring. A pair of first mounting ears are fixedly installed on the top surface of the slider.

[0013] Further, the pushing assembly includes a mounting ring fixedly sleeved on the circumferential side wall of the lower end of the upper liquid injection pipe. Two pairs of second mounting ears are fixedly installed on the bottom surface of the mounting ring. The second mounting ears and the first mounting ears are movably connected through a push rod. A through groove is formed at the lower end of the push rod.

[0014] Further, the transmission assembly includes a hollow threaded rod vertically rotatably installed inside the valve seat body. A transmission shaft is vertically slidably installed inside the hollow threaded rod. The lower end of the transmission shaft is arranged in the inner cavity of the annular groove. A transmission wheel is fixedly installed at the lower end of the transmission shaft. The transmission wheel is rotatably installed on the top surface of the L-shaped bracket, and the circumferential outer wall of the transmission wheel is in contact with the circumferential outer wall of the cap.

[0015] Further, the hollow threaded rod includes a threaded rod body. A pair of long grooves are formed in the inner cavity of the threaded rod body.

[0016] Further, the pressure regulating assembly includes a first hollow fixing block fixedly installed in the inner cavity of the exhaust passage. A hollow sliding seat is further slidably installed in the inner cavity of the exhaust passage. A second electronic air valve is fixedly installed and communicated on the top surface of the hollow sliding seat. A plurality of electromagnets are fixedly installed on the top surface of the hollow sliding seat. A second hollow fixing block is further fixedly installed in the inner cavity of the exhaust passage. The second hollow fixing block is arranged above the second electronic air valve. A plurality of permanent magnets are fixedly installed on the bottom surface of the second hollow fixing block, and the electromagnets and the permanent magnets are arranged in alignment.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] Through the cooperative setting among the electric cylinder, the liquid injection assembly, the plugging assembly, the connection assembly, the pushing assembly, the transmission assembly and the sealing assembly, even if there is an airtightness problem during the filling process, there is no need to stop the machine for maintenance. After processing this batch of products, maintenance can be continued, improving the emergency response ability during the use of the device and minimizing the impact on work efficiency. Through the setting of the pressure regulating assembly, it is used to adjust the air pressure imbalance problem between the beverage bottle and the liquid storage tank, and finally ensure that the whole filling process is in a pressure balance state, which can effectively reduce the generation of foam and improve the filling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a three-dimensional structure schematic diagram of the valve seat of the present invention;

[0021] Figure 3 is a schematic diagram of the connection relationship between the pushing assembly and the connection assembly of the present invention;

[0022] Figure 4 is a three-dimensional structure schematic diagram of the sealing cover of the present invention;

[0023] Figure 5 is a schematic sectional view of the overall structure of the present invention;

[0024] Figure 6 is Figure 5 an enlarged view of part A of

[0025] Figure 7 is Figure 5 an enlarged view of part B of

[0026] Figure 8 is Figure 7 an enlarged view of part C of

[0027] Figure 9 is Figure 7 an enlarged view of part D of

[0028] Figure 10 is Figure 9 an enlarged view of part E of

[0029] Figure 11 is a schematic sectional view of the liquid injection assembly of the present invention;

[0030] Figure 12 is Figure 11 an enlarged view of part F of

[0031] Figure 13 is a schematic sectional view of the plugging group of the present invention;

[0032] Figure 14 isFigure 13 Enlarged view at position G;

[0033] Figure 15 is Figure 14 Enlarged view at position H.

[0034] In the figure: 1, mounting bracket; 2, electric cylinder; 3, valve seat; 31, valve seat body; 32, annular groove; 33, vertical mounting groove; 4, liquid injection assembly; 41, upper liquid injection pipe; 42, spring two; 43, lower liquid injection pipe; 44, slideway; 45, connecting rod; 46, spring three; 47, bellows; 48, liquid injection port; 49, clamping block; 5, beverage bottle; 6, plugging assembly; 61, plugging block; 62, chute; 63, exhaust passage; 64, intake passage; 65, limit groove; 66, fixing bracket; 67, spring four; 7, connecting assembly; 71, slider; 72, internal thread; 73, mounting ear one; 74, spring five; 8, pushing assembly; 81, mounting ring; 82, mounting ear two; 83, push rod; 84, through slot; 9, transmission assembly; 91, hollow threaded rod; 911, threaded rod body; 912, long slot; 92, transmission shaft; 93, transmission wheel; 10, sealing assembly; 101, L-shaped bracket; 102, spring one; 103, sealing cover; 1031, cap; 1032, cavity; 1033, annular plate; 1034, annular piston; 1035, self-expanding gasket; 1036, relief groove; 1037, baffle; 1038, spring six; 20, electronic air valve one; 40, pressure sensor; 30, pressure regulating assembly; 301, hollow fixing block one; 302, hollow sliding seat; 303, electronic air valve two; 304, electromagnet; 305, hollow fixing block two; 306, permanent magnet. Detailed implementation manners

[0035] The present invention will be further described below in conjunction with specific embodiments.

[0036] To solve the problem that the plugging block 61 cannot be closely attached to the mouth of the beverage bottle 5, resulting in unbalanced air pressure and affecting the filling accuracy, as shown in Figure 1 - Figure 15 shown:

[0037] A filling valve of a beverage filling machine, as shown in Figure 1 - Figure 2 shown, includes a mounting bracket 1 and an electric cylinder 2 fixedly arranged on the mounting bracket 1. The mounting bracket 1 is used to support and fix each component, and the electric cylinder 2 is used to provide driving force to drive the isobaric filling valve to operate. A valve seat 3 is fixedly arranged on the mounting bracket 1, and the valve seat 3 is also used to support and fix each internal component. A beverage bottle 5 is arranged at the bottom of the valve seat 3 for containing carbonated beverages, as shown in Figure 3 , Figure 5 , Figure 7 , Figure 11 ,Figure 13 and Figure 14 As shown in Figure 14 , a liquid injection assembly 4 is slidably arranged inside the valve seat 3, and a plugging assembly 6 is arranged inside the valve seat 3. Since carbonated beverages are filled, before filling the beverage bottle 5, first start the electric cylinder 2 to extend, and act on the liquid injection assembly 4, so that the liquid injection assembly 4 slides downward inside the valve seat 3 and inserts into the inside of the beverage bottle 5. After the liquid injection assembly 4 slides for a period of time, it will synchronously drive the plugging assembly 6 to slide downward until the plugging assembly 6 completely abuts against the mouth of the beverage bottle 5. At this time, the electric cylinder 2 stops extending and positions. At this time, the plugging assembly 6 has completely plugged the beverage bottle 5, and the beverage bottle 5 is in a sealed state. At the same time, carbon dioxide or sterile air is filled into the beverage bottle 5 until the air pressure in the beverage bottle 5 reaches equilibrium with the air pressure in the liquid storage tank. Then, the carbonated beverage is injected into the beverage bottle 5 through the liquid injection assembly 4, which can effectively prevent the problem of a large amount of foam caused by unbalanced air pressure.

[0038] As Figure 2 and Figure 13 shown in Figure 13 , an electronic air valve 20 is fixedly arranged on the circumferential outer wall at the lower end of the valve seat 3. The electronic air valve 20 is communicated with the plugging assembly 6 through a trachea. After the plugging assembly 6 has completely plugged the beverage bottle 5, open the electronic air valve 20, and carbon dioxide or sterile air enters the beverage bottle 5 through the electronic air valve 20, the trachea and the plugging assembly 6. Until the air pressure in the beverage bottle 5 reaches equilibrium with the air pressure in the liquid storage tank, close the electronic air valve 20 and maintain the pressure. A pressure sensor 40 is fixedly arranged inside the plugging assembly 6 to judge whether the air pressure balance state is reached. As Figure 5 - Figure 10 shown in Figure 5 - Figure 10 , a pair of connecting assemblies 7 are slidably arranged on the plugging assembly 6. A pushing assembly 8 is fixedly sleeved on the liquid injection assembly 4, and the lower end of the pushing assembly 8 is movably connected to the connecting assembly 7. A transmission assembly 9 and a sealing assembly 10 are respectively rotatably arranged in the lower part of the inner cavity of the valve seat 3, and the transmission assembly 9 and the sealing assembly 10 are in contact with each other.

[0039] Figure 13 - Figure 15As shown in the figure, when the air pressure in the beverage bottle 5 reaches equilibrium with the air pressure in the liquid storage tank, if the value of the air pressure sensor 40 always remains within the error range, it indicates that there is no problem with the airtightness at the contact position between the plugging assembly 6 and the beverage bottle 5. If the value of the air pressure sensor 40 is continuously decreasing, it indicates that there is a problem with the airtightness at the contact position between the plugging assembly 6 and the beverage bottle 5. At this time, the electric cylinder 2 is started again to extend and act on the liquid injection assembly 4. The lower end of the liquid injection assembly 4 remains in place, while the upper end of the liquid injection assembly 4 slides downward. During the process of the upper end of the liquid injection assembly 4 sliding, it will drive the connection assembly 7 to slide downward on the plugging assembly 6 through the pushing assembly 8. During the process of the connection assembly 7 sliding downward, it is threadedly connected to the transmission assembly 9 and drives the transmission assembly 9 to rotate. Since the transmission assembly 9 and the sealing assembly 10 are in contact with each other, the transmission assembly 9 will drive the sealing assembly 10 to rotate. During the rotation of the sealing assembly 10, it will be threadedly connected to the thread at the mouth of the beverage bottle 5, so that the sealing assembly 10 is sleeved on the outer periphery of the contact position between the plugging assembly 6 and the beverage bottle 5, realizing secondary sealing, which is beneficial to maintaining good airtightness. Through such a setting, even if there is a problem with airtightness during the filling process, there is no need to stop the machine for maintenance. After this batch of products is processed, the maintenance can be continued, improving the emergency response ability during the use of the device and minimizing the impact on work efficiency as much as possible.

[0040] As Figure 8 shown, a pressure regulating assembly 30 is also slidably arranged inside the plugging assembly 6. The pressure regulating assembly 30 is provided to adjust the problem of air pressure imbalance between the beverage bottle 5 and the liquid storage tank. When the air pressure in the beverage bottle 5 is greater than the air pressure in the liquid storage tank, the pressure regulating assembly 30 will release a part of the gas in the beverage bottle 5, thereby restoring the air pressure balance between the beverage bottle 5 and the liquid storage tank; when the air pressure in the beverage bottle 5 is less than the air pressure in the liquid storage tank, the pressure regulating assembly 30 will increase the air pressure in the beverage bottle 5 by reducing the space volume, so that the air pressure balance between the beverage bottle 5 and the liquid storage tank is restored, ultimately ensuring that the entire filling process is in a pressure balance state.

[0041] As Figure 7 、 Figure 9 and Figure 15 shown, the valve seat 3 includes a valve seat main body 31. An annular groove 32 is opened at the lower end of the inner cavity of the valve seat main body 31. The opening of the annular groove 32 is to avoid interfering with the up and down movement of the sealing assembly 10. A plurality of vertical installation grooves 33 are respectively opened on the side wall of the annular groove 32. The L-shaped bracket 101 is slidably installed in the inner cavity of the vertical installation groove 33. The vertical installation groove 33 is used to limit the L-shaped bracket 101, so that the L-shaped bracket 101 can slide along a preset track. And the bottom surface of the L-shaped bracket 101 and the bottom surface of the inner cavity of the annular groove 32 are elastically connected by a first spring 102. The first spring 102 is used to realize the upward reset function of the sealing assembly 10.

[0042] As Figure 1 - Figure 3 , Figure 5 and Figure 12 shown, the liquid injection assembly 4 includes an upper liquid injection pipe 41 slidably mounted on the valve seat body 31 and a lower liquid injection pipe 43 slidably mounted through the plugging assembly 6, and the upper liquid injection pipe 41 and the lower liquid injection pipe 43 are connected through a corrugated pipe 47. The upper end of the upper liquid injection pipe 41 is provided with a liquid injection port 48. During filling, the carbonated beverage is filled into the upper liquid injection pipe 41 from the liquid injection port 48. Since the beverage bottle 5 and the liquid storage tank are in a pressure balance state at this time, the carbonated beverage in the upper liquid injection pipe 41 flows through the corrugated pipe 47 and the lower liquid injection pipe 43 under the action of gravity and then enters the beverage bottle 5. The corrugated pipe 47 is used to realize the sealed connection between the upper liquid injection pipe 41 and the lower liquid injection pipe 43. The upper liquid injection pipe 41 and the valve seat body 31 are elastically connected through a second spring 42. The setting of the second spring 42 is used to realize the reset function of the liquid injection assembly 4. A pair of slideways 44 are symmetrically opened on the top surface of the lower liquid injection pipe 43. Connecting rods 45 are respectively slidably mounted inside the two slideways 44, and the tops of the two connecting rods 45 are fixedly connected to the bottom surface of the upper liquid injection pipe 41. The cooperation of the slideway 44 and the connecting rod 45 can make the upper liquid injection pipe 41 move downward on the lower liquid injection pipe 43. When there is a problem with the airtightness at the contact position between the plugging assembly 6 and the beverage bottle 5, the upper liquid injection pipe 41 moves downward on the lower liquid injection pipe 43, and can drive the sealing assembly 10 to rotate through the pushing assembly 8, the connecting assembly 7 and the transmission assembly 9, so that the sealing assembly 10 is sleeved on the outer periphery of the contact position between the plugging assembly 6 and the beverage bottle 5 to realize secondary sealing. The upper liquid injection pipe 41 and the lower liquid injection pipe 43 are elastically connected through a third spring 46. The third spring 46 is used to realize the effects of pressurization and reset, as Figure 7 and Figure 14 shown, a pair of clamping blocks 49 are fixedly mounted on the circumferential outer wall of the lower liquid injection pipe 43. The clamping blocks 49 cooperate with the plugging assembly 6 to limit the lower liquid injection pipe 43.

[0043] As Figure 7 and Figure 14 shown, the plugging assembly 6 includes a plugging block 61. A pair of chutes 62 are symmetrically opened on the side wall of the plugging block 61. The connecting assembly 7 is slidably mounted inside the chutes 62. An exhaust passage 63 and an air inlet passage 64 are respectively opened inside the plugging block 61. A pressure regulating assembly 30 is arranged in the inner cavity of the exhaust passage 63. The air inlet passage 64 is connected to the first electronic air valve 20 through a trachea. The air inlet passage 64, the first electronic air valve 20 and the trachea are used to fill the beverage bottle 5 with gas. During filling, as the liquid level in the beverage bottle 5 continuously rises, the gas in the beverage bottle 5 will be discharged through the air inlet passage 64 and the pressure regulating assembly 30, as Figure 13 shown, as Figure 11As shown, a fixing frame 66 is fixedly installed at the lower end of the inner cavity of the valve seat body 31. The fixing frame 66 and the plugging block 61 are elastically connected by a fourth spring 67. The fixing frame 66 is provided to limit the lower section of the liquid injection pipe 43 and the plugging block 61, and the fourth spring 67 is used to reset the plugging block 61. As Figure 14 shown, a pair of limiting grooves 65 are also formed in the plugging block 61, and the clamping block 49 is slidably arranged inside the limiting grooves 65.

[0044] As Figure 7 and Figure 14 shown, the connecting component 7 includes a slider 71. The slider 71 is slidably installed inside the chute 62. An internal thread 72 is provided on the slider 71. The bottom surface of the slider 71 and the bottom surface of the inner cavity of the chute 62 are elastically connected by a fifth spring 74 for realizing the reset function of the slider 71. A pair of mounting ears 73 are fixedly installed on the top surface of the slider 71.

[0045] As Figure 6 - Figure 7 and Figure 13 - Figure 14 shown, the pushing component 8 includes a mounting ring 81 fixedly sleeved on the circumferential side wall of the lower end of the upper section of the liquid injection pipe 41. Two pairs of mounting ears 82 are fixedly installed on the bottom surface of the mounting ring 81. The mounting ears 82 and the mounting ears 73 are movably connected by a push rod 83. A through groove 84 is formed at the lower end of the push rod 83. When the upper section of the liquid injection pipe 41 drives the mounting ring 81 to move downward, through the cooperation among the mounting ears 82, the push rod 83 and the mounting ears 73, the slider 71 slides downward inside the chute 62. During the downward sliding process of the slider 71, the transmission component 9 drives the sealing component 10 to rotate, so that the sealing component 10 is sleeved on the outer periphery of the contact position between the plugging component 6 and the beverage bottle 5 to achieve secondary sealing.

[0046] As Figure 9 and Figure 15 shown, the transmission component 9 includes a hollow threaded rod 91 vertically rotatably installed inside the valve seat body 31. A transmission shaft 92 is vertically slidably installed inside the hollow threaded rod 91. The lower end of the transmission shaft 92 is arranged in the inner cavity of the annular groove 32. A transmission wheel 93 is fixedly installed at the lower end of the transmission shaft 92.

[0047] As Figure 10As shown, the hollow threaded rod 91 includes a threaded rod body 911. A pair of long grooves 912 are formed in the inner cavity of the threaded rod body 911. The arrangement of the long grooves 912 plays a role in limiting the transmission shaft 92. The transmission shaft 92 can move up and down in the long grooves 912, but cannot rotate in the long grooves 912. The purpose is that when there is a problem with the airtightness at the contact position between the plugging block 61 and the beverage bottle 5, the sealing assembly 10 needs to be spirally downward and sleeved on the outer periphery of the contact position between the plugging block 61 and the beverage bottle 5 for secondary sealing to relieve the problem of poor airtightness. When the sealing assembly 10 is spirally downward, since the transmission wheel 93 at the lower end of the transmission shaft 92 is rotatably installed on the top surface of the L-shaped bracket 101, the transmission wheel 93 and the transmission shaft 92 will synchronously move downward with the L-shaped bracket 101. At this time, through the cooperative arrangement of the long grooves 912 and the transmission shaft 92, the transmission shaft 92 can synchronously transmit power during the downward movement.

[0048] The sealing assembly 10 includes a plurality of L-shaped brackets 101 slidably arranged in the inner cavity of the valve seat 3. The transmission wheel 93 is rotatably installed on the top surface of the L-shaped bracket 101. The L-shaped bracket 101 is elastically connected to the side wall of the inner cavity of the valve seat 3 through a first spring 102. A sealing cover 103 is rotatably installed on the plurality of L-shaped brackets 101 together.

[0049] The sealing cover 103 includes a cap 1031 rotatably installed on the L-shaped bracket 101, and the circumferential outer wall of the transmission wheel 93 is in contact with the circumferential outer wall of the cap 1031. A cavity 1032 is formed inside the cap 1031. An annular plate 1033 is slidably installed in the cavity 1032. An annular piston 1034 is fixedly installed on the top surface of the annular plate 1033. The bottom surface of the annular plate 1033 is elastically connected to the bottom wall of the cavity 1032 through a sixth spring 1038. A self-expanding gasket 1035 is fixedly installed by embedding at the opening of the horizontal section of the cavity 1032. A plurality of baffles 1037 are fixedly installed on the side wall of the annular plate 1033. A plurality of relief grooves 1036 are formed on the side wall of the inner ring of the cap 1031, and the baffles 1037 are slidably arranged in the inner cavity of the relief grooves 1036

[0050] Specifically, as Figure 5 、 Figure 13 and Figure 14 shown, since carbonated beverages are filled, before filling the beverage bottle 5, first start the electric cylinder 2 to extend and act on the upper liquid injection pipe 41. Since the upper liquid injection pipe 41 and the lower liquid injection pipe 43 are connected by a third spring 46, when the electric cylinder 2 pushes the upper liquid injection pipe 41 to move downward on the valve seat body 31, the third spring 46 and the lower liquid injection pipe 43 will synchronously move downward with the upper liquid injection pipe 41, as Figure 7 and Figure 14As shown, in the process of the lower section of the liquid injection tube 43 sliding downward, the block 49 on the lower section of the liquid injection tube 43 will synchronously slide downward inside the limiting groove 65. When the block 49 slides to the bottom of the limiting groove 65, it will conflict with the side wall of the limiting groove 65. At this time, the lower section of the liquid injection tube 43 continues to slide downward. At this time, since the block 49 and the limiting groove 65 are in a limited state, the blocking block 61 will synchronously descend with the lower section of the liquid injection tube 43 until the bottom of the blocking block 61 is completely pressed against the bottle mouth of the beverage bottle 5. The electric cylinder 2 stops extending and is positioned. At this time, the blocking block 61 has completely blocked the beverage bottle 5, and the beverage bottle 5 is in a sealed state. The bottom of the tube 43 is inserted into the interior of the beverage bottle 5. At the same time, carbon dioxide or sterile air is filled into the beverage bottle 5 through the electronic air valve 20, the air pipe and the air inlet channel 64 until the air pressure sensor 40 determines that the air pressure in the beverage bottle 5 is balanced with the air pressure in the liquid storage tank. The carbonated beverage in the liquid storage tank enters the liquid filling port 48, the upper liquid filling tube 41, the bellows 47 and the lower liquid filling tube 43 into the beverage bottle 5. Then, the carbonated beverage flows out from the bottom of the lower liquid filling tube 43 under the action of gravity and enters the beverage bottle 5. After the filling is completed, the electric cylinder 2 is reset and the pressure applied to the upper liquid filling tube 41 is cancelled. The remaining components are returned to their positions in order for the next filling.

[0051] During the filling process, the sealing block 61 becomes aged, deformed and cracked after long-term use, which causes problems with the airtightness between the sealing block 61 and the mouth of the beverage bottle 5.

[0052] The solutions are as follows: Figure 11 As shown, at this time, the blocking block 61 and the mouth of the beverage bottle 5 are in a blocked state, and the electric cylinder 2 is started again to extend and act on the upper liquid injection pipe 41 for a second time. Since the blocking block 61 is blocked by the mouth of the beverage bottle 5, the blocking block 61 and the lower liquid injection pipe 43 remain in place. Figure 12 As shown, due to the coordinated arrangement of the slideway 44 and the connecting rod 45, the upper liquid injection pipe 41 can continue to slide downward on the lower liquid injection pipe 43, and further compress the spring three 46, so as to increase the deformation degree of the spring three 46, so that the spring three 46 applies a greater pressure to the blocking block 61, thereby making the blocking block 61 more tightly in contact with the bottle mouth of the beverage bottle 5, reducing the amount of gas escaping, thereby achieving the purpose of reducing waste;

[0053] At the same time, Figure 6 - Figure 7 As shown, the electric cylinder 2 continues to drive the upper injection pipe 41 to move downward. During the movement of the upper injection pipe 41, the pushing component 8 synchronously follows the upper injection pipe 41 to move downward, and uses the push rod 83 on the pushing component 8 to act on the mounting ear 73, thereby driving the slider 71 to slide downward inside the slide groove 62, as shown in FIG. Figure 9 - Figure 10 and Figure 15As shown, when the slider 71 slides downward, the internal thread 72 on the slider 71 cooperates with the hollow threaded rod 91, driving the hollow threaded rod 91 and the transmission wheel 93 to rotate synchronously. Since the circumferential outer wall of the transmission wheel 93 and the circumferential outer wall of the cap 1031 are in abutting contact, the transmission wheel 93 drives the cap 1031 to rotate. During the rotation of the cap 1031, the cap 1031 is threadedly engaged with the bottle mouth of the beverage bottle 5, so that the cap 1031 is threadedly installed on the bottle mouth of the beverage bottle 5.

[0054] like Figure 4 , Figure 7 and Figure 9 As shown in the figure, when the cap 1031 is threadedly installed on the mouth of the beverage bottle 5, the cap 1031 will move downward in the vertical direction, and the cooperation of the L-shaped bracket 101 and the vertical mounting groove 33 is used to meet the movement trajectory requirements of the cap 1031. During the downward movement of the cap 1031, the baffle 1037 will conflict with the edge of the mouth of the beverage bottle 5, hindering the baffle 1037, so that the baffle 1037, the annular plate 1033 and the annular piston 1034 cannot continue to move downward, thereby causing relative displacement between the baffle 1037, the annular plate 1033 and the annular piston 1034 and the cap 1031, so that the annular plate 1033 and the annular piston 1034 are in the air. The compressed air will exert pressure on the self-expanding sealing pad 1035, thereby firmly pressing the self-expanding sealing pad 1035 at the contact position between the sealing block 61 and the bottle mouth of the beverage bottle 5, thereby realizing secondary sealing. At this time, if the sealing block 61 is aged, deformed or cracked after a long period of use, thereby causing problems with the airtightness between the sealing block 61 and the bottle mouth of the beverage bottle 5, through the above arrangement, even if airtightness problems occur during the filling process, there is no need to stop the machine for maintenance. After processing this batch of products, maintenance can be continued, thereby improving the emergency response capability of the device during use and minimizing the impact on work efficiency.

[0055] In order to solve the problem that when the air intake mechanism on the isobaric filling valve has an error in accuracy, the pressure in the beverage bottle 5 and the pressure in the liquid storage tank are unbalanced, thereby affecting the filling accuracy, such as Figure 8 As shown:

[0056] The pressure regulating assembly 30 includes a hollow fixed block 301 fixedly installed in the inner cavity of the exhaust channel 63, a hollow slide seat 302 is also slidably installed in the inner cavity of the exhaust channel 63, an electronic gas valve 303 is fixedly installed on the top surface of the hollow slide seat 302, and a plurality of electromagnets 304 are fixedly installed on the top surface of the hollow slide seat 302, a hollow fixed block 305 is also fixedly installed in the inner cavity of the exhaust channel 63, the hollow fixed block 305 is arranged above the electronic gas valve 303, and a plurality of permanent magnets 306 are fixedly installed on the bottom surface of the hollow fixed block 305, and the electromagnet 304 and the permanent magnet 306 are aligned.

[0057] Specifically, during the filling process, when the accuracy of the air intake mechanism is in error, two situations may occur, as follows:

[0058] Case 1: When the air pressure in the beverage bottle 5 is greater than the air pressure in the liquid storage tank, the second electronic gas valve 303 is opened, and part of the gas in the beverage bottle 5 is released through the exhaust channel 63, thereby restoring the air pressure in the beverage bottle 5 and the liquid storage tank to balance;

[0059] Case 2: If Figure 8 As shown, in the initial state, the hollow slide 302 is at the bottom and the second electronic gas valve 303 is in a closed state. When the beverage bottle 5 is inflated, the hollow slide 302 will slide upward with the second electronic gas valve 303 and the electromagnet 304 under the action of air pressure. When the air pressure in the beverage bottle 5 is lower than the air pressure in the liquid storage tank, the second electronic gas valve 303 is still in a closed state. At this time, the electromagnet 304 is started and generates a repulsive force on the permanent magnet 306, so that the hollow slide 302 slides downward, compressing the space volume in disguised form, thereby increasing the air pressure in the beverage bottle 5, and finally restoring the air pressure in the beverage bottle 5 and the liquid storage tank to balance;

[0060] When there is an error in the accuracy of the air intake mechanism on the isobaric filling valve, too much or too little carbon dioxide or sterile air may be filled into the beverage bottle 5, which will cause an imbalance between the air pressure in the beverage bottle 5 and the air pressure in the liquid storage tank, and then cause a large amount of foam to appear during filling, affecting the filling accuracy. Since there is an error in the accuracy of the air intake mechanism, if the air intake mechanism is used continuously to adjust the air pressure balance, it may have a counterproductive effect and the error will gradually increase. Therefore, a pressure regulating component 30 is provided to adjust the air pressure imbalance problem between the beverage bottle 5 and the liquid storage tank, ultimately ensuring that the pressure is balanced throughout the entire filling process, which can effectively reduce the generation of foam and improve the filling accuracy.

[0061] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0062] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A filling valve for a beverage filling machine, comprising a mounting frame (1) and an electric cylinder (2) fixedly arranged on the mounting frame (1), characterized in that: A valve seat (3) is fixedly arranged on the mounting bracket (1). A beverage bottle (5) is arranged at the bottom of the valve seat (3). A liquid injection assembly (4) is slidably arranged inside the valve seat (3). A plugging assembly (6) is arranged inside the valve seat (3). An electronic air valve I (20) is fixedly arranged on the circumferential outer wall at the lower end of the valve seat (3). The electronic air valve I (20) and the plugging assembly (6) are communicated through an air pipe. A pressure sensor (40) is fixedly arranged inside the plugging assembly (6). A pair of connecting assemblies (7) are slidably arranged on the plugging assembly (6). A pushing assembly (8) is fixedly sleeved on the liquid injection assembly (4), and the lower end of the pushing assembly (8) is movably connected to the connecting assembly (7). A transmission assembly (9) and a sealing assembly (10) are respectively rotatably arranged in the lower part of the inner cavity of the valve seat (3), and the transmission assembly (9) and the sealing assembly (10) are in contact with each other. A pressure regulating assembly (30) is also slidably arranged inside the plugging assembly (6); The sealing assembly (10) includes a plurality of L-shaped brackets (101) slidably arranged in the inner cavity of the valve seat (3). The L-shaped brackets (101) and the side wall of the inner cavity of the valve seat (3) are elastically connected through a first spring (102). A sealing cover (103) is rotatably installed on the plurality of L-shaped brackets (101) together; The valve seat (3) includes a valve seat body (31). The liquid injection assembly (4) includes an upper section liquid injection pipe (41) slidably installed on the valve seat body (31) and a lower section liquid injection pipe (43) slidably installed through the plugging assembly (6). The upper section liquid injection pipe (41) and the lower section liquid injection pipe (43) are communicated through a corrugated pipe (47). A liquid injection port (48) is opened at the upper end of the upper section liquid injection pipe (41). The upper section liquid injection pipe (41) and the valve seat body (31) are elastically connected through a second spring (42). A pair of slideways (44) are symmetrically opened on the top surface of the lower section liquid injection pipe (43). Connecting rods (45) are respectively slidably installed inside the two slideways (44). The tops of the two connecting rods (45) are fixedly connected to the bottom surface of the upper section liquid injection pipe (41). The upper section liquid injection pipe (41) and the lower section liquid injection pipe (43) are elastically connected through a third spring (46). A pair of clamping blocks (49) are fixedly installed on the circumferential outer wall of the lower section liquid injection pipe (43); The blocking component (6) comprises a blocking block (61), a pair of slide grooves (62) are symmetrically provided on the side wall of the blocking block (61), a connecting component (7) is slidably mounted inside the slide grooves (62), an exhaust channel (63) and an intake channel (64) are respectively provided inside the blocking block (61), a pressure regulating component (30) is provided in the inner cavity of the exhaust channel (63), the intake channel (64) and the electronic gas valve (20) are connected via an air pipe, a fixing frame (66) is fixedly mounted at the lower end of the inner cavity of the valve seat body (31), the fixing frame (66) and the blocking block (61) are elastically connected via a spring (67), a pair of limit grooves (65) are also provided on the blocking block (61), and a clamping block (49) is slidably arranged inside the limit grooves (65); The pressure regulating assembly (30) comprises a hollow fixed block 1 (301) fixedly mounted in the inner cavity of the exhaust channel (63); a hollow slide seat (302) is also slidably mounted in the inner cavity of the exhaust channel (63); an electronic gas valve 2 (303) is fixedly mounted on the top surface of the hollow slide seat (302); a plurality of electromagnets (304) are also fixedly mounted on the top surface of the hollow slide seat (302); a hollow fixed block 2 (305) is also fixedly mounted in the inner cavity of the exhaust channel (63); the hollow fixed block 2 (305) is arranged above the electronic gas valve 2 (303); a plurality of permanent magnets (306) are fixedly mounted on the bottom surface of the hollow fixed block 2 (305); and the electromagnets (304) and the permanent magnets (306) are arranged in alignment.

2. The filling valve of a beverage filling machine according to claim 1, characterized in that, An annular groove (32) is formed at the lower end of the inner cavity of the valve seat body (31), and a plurality of vertical mounting grooves (33) are formed on the side walls of the annular groove (32). The L-shaped bracket (101) is slidably mounted in the inner cavity of the vertical mounting groove (33), and the bottom surface of the L-shaped bracket (101) and the bottom surface of the inner cavity of the annular groove (32) are elastically connected via a spring 1 (102); The sealing cover (103) comprises a cap (1031) rotatably mounted on an L-shaped bracket (101); a cavity (1032) is provided inside the cap (1031); an annular plate (1033) is slidably mounted in the cavity (1032); an annular piston (1034) is fixedly mounted on the top surface of the annular plate (1033); a bottom surface of the annular plate (1033) and a bottom wall of the cavity (1032) are elastically connected via a spring six (1038); a self-expanding sealing pad (1035) is embedded and fixedly mounted at the opening of the horizontal section of the cavity (1032); a plurality of baffles (1037) are fixedly mounted on the side wall of the annular plate (1033); a plurality of clearance grooves (1036) are provided on the side wall of the inner ring of the cap (1031); and the baffles (1037) are slidably mounted in the inner cavity of the clearance grooves (1036).

3. The filling valve of a beverage filling machine according to claim 1, characterized in that, The connecting component (7) includes a slider (71), the slider (71) is slidably installed inside the chute (62), an internal thread (72) is provided on the slider (71), and an elastic connection is made between the bottom surface of the slider (71) and the bottom surface of the inner cavity of the chute (62) through a fifth spring (74). A pair of first mounting ears (73) are fixedly installed on the top surface of the slider (71).

4. The filling valve of a beverage filling machine according to claim 3, characterized in that, The pushing component (8) includes a mounting ring (81) fixedly sleeved on the circumferential side wall of the lower end of the upper liquid injection pipe (41). Two pairs of second mounting ears (82) are fixedly installed on the bottom surface of the mounting ring (81). The second mounting ears (82) and the first mounting ears (73) are movably connected through a push rod (83), and a through slot (84) is opened at the lower end of the push rod (83).

5. The filling valve of a beverage filling machine according to claim 2, characterized in that, The transmission component (9) includes a hollow threaded rod (91) vertically rotatably installed inside the valve seat body (31). A transmission shaft (92) is vertically slidably installed inside the hollow threaded rod (91). The lower end of the transmission shaft (92) is arranged in the inner cavity of the annular groove (32). A transmission wheel (93) is fixedly installed at the lower end of the transmission shaft (92). The transmission wheel (93) is rotatably installed on the top surface of the L-shaped bracket (101), and the circumferential outer wall of the transmission wheel (93) is in contact with the circumferential outer wall of the cap (1031).

6. The filling valve of a beverage filling machine according to claim 5, characterized in that, The hollow threaded rod (91) includes a threaded rod main body (911), and a pair of long slots (912) are opened in the inner cavity of the threaded rod main body (911).

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