Universal type gas-containing filling valve for zip-top cans and bottles

Abstract

The invention relates to the technical field of filling equipment, in particular to a zip-top can and bottle universal type gas-containing filling valve which comprises a filling assembly, a control assembly, a measuring cylinder assembly and a centering assembly. The filling assembly comprises a cavity, a valve seat installed on the cavity, a wine valve sleeve penetrating through the cavity to be connected with the valve seat, and a wine valve rod located in the wine valve sleeve. The upper end part of the wine valve rod extends out of the valve seat and is sequentially provided with a connecting pipe support, a spring clamping block and a wine valve sealing spring seat from top to bottom; the lower portion of the wine valve sleeve is narrowed inwards to form a wine discharging opening. The wine valve sleeve is sleeved with a housing, and a detachable centering filling head is arranged between the housing and the wine valve sleeve; the inner wall of the lower portion of the centering filling head shrinks inwards and forms a material opening corresponding to the wine discharging opening. According to the invention, zip-top cans and glass bottle containers can be filled on the same filling line at the same time, the operation of the filling process of various bottle types can be completed without tedious replacement of a filling valve, the cost is saved, the filling stability is ensured, and the mounting and dismounting do not need complicated procedures.

Description

Technical Field

[0001] The present invention relates to the technical field of filling valves, and in particular to a universal gas-containing filling valve for cans and bottles. Background Art

[0002] With the improvement of people's living standards, the pursuit of beverages, beers, mineral waters, etc. by everyone has gradually become more diversified and differentiated, rather than a single product. The currently popular craft beers, various customized beverage products, etc. in the world are a good example. Manufacturers are eager to have a filling device that can adapt to different bottle types and different packaging materials to meet the production needs. The idea of the "electronic liquid level gauge type glass bottle and can shared filling valve control system" comes from the booming development of craft beers in recent years. Generally, craft beer filling equipment requires characteristics such as less floor space, less output, and more batches. The packaging forms of beer include various forms such as glass bottles and cans. The technology of filling various materials such as gas-containing liquids and non-gas-containing liquids into various packaging containers such as bottles, cans, boxes, barrels, or bags through a filling valve. Using mechanical filling can not only improve production efficiency, reduce product losses, ensure packaging quality, but also reduce the mutual contamination between the production environment and the filled materials. At present, filling technology has been widely used in the automated filling production of the pharmaceutical, daily chemical, food, and special industry factories. To complete filling, the filling valve is an essential and important component. According to the filling principle, filling valves can be divided into atmospheric pressure filling valves, positive pressure filling valves, negative pressure filling valves, or pressure filling valves, etc. These filling machines all belong to the mechanical filling method, that is, the filling method uses a mechanical filling valve to achieve the filling of materials.

[0003] At the present stage, the traditional mechanical filling valve has problems such as low volume accuracy, complex structure, poor overall liquid level accuracy control, and low production efficiency. Moreover, the traditional filling valve design is such that the bottle filling line can only use the filling machine of the bottle filling line, and the can filling line can only use the filling machine of the can filling line. Therefore, the single filling structure of the filling valve greatly limits the filling efficiency. When filling different types of filling bottles, it is necessary to stop the machine, and then replace the appropriate filling valve as a whole before proceeding with the filling procedure. Summary of the Invention

[0004] In order to overcome the above deficiencies existing in the prior art, the purpose of the present invention is to provide a universal gas-containing filling valve for cans and bottles, which can fill different types of bottle mouths, simultaneously fill containers such as cans, large and small glass bottles, etc. on the same filling line, and can also simultaneously fill gas-containing and non-gas-containing materials. There is no need to perform cumbersome operations of replacing the filling valve to complete the filling process of multiple bottle types, saving costs, ensuring the stability of the filling effect, having a simple structure, being convenient to use, and requiring no more complicated procedures for installation and disassembly.

[0005] To achieve the above object, a universal carbonated filling valve for cans and bottles of the present technical solution includes a filling assembly, a control assembly, a measuring cylinder assembly, and a centering assembly. The control assembly is respectively communicated with the measuring cylinder assembly and the filling assembly. The filling assembly includes a cavity, a valve seat installed on the cavity, a wine valve sleeve passing through the cavity and connecting the valve seat, and a wine valve rod located inside the wine valve sleeve. The upper end of the wine valve rod extends out of the valve seat and is successively provided with a connecting pipe support, a spring clamping block, and a wine valve sealing spring seat from top to bottom. A spring clamping block flange is sleeved on the spring clamping block. A wine valve spring is provided between the spring clamping flange and the wine valve sealing spring seat. The upper end of the connecting pipe support is connected with a cylinder assembly. The lower part of the wine valve sleeve is narrowed inward to form a lower wine port. The lower part of the wine valve rod is adapted to the lower wine port and is provided with a lower wine port sealing gasket. A housing is sleeved on the wine valve sleeve, and a detachable centering filling head is provided between the housing and the wine valve sleeve. The inside of the centering filling head is hollow, and the centering filling head is installed on the inner wall of the housing. A first strip bearing and a lip seal ring are provided between the centering filling head and the housing. The inside of the wine valve rod is hollow and the lower part is provided with a threaded port, and a back gas diverter is installed on the threaded port. The upper part of the back gas diverter is threaded, the lower part is a narrow wall structure, and the inside is hollow and communicated with the wine valve rod. The inner wall of the lower part of the centering filling head contracts inward and corresponds to the lower wine port to form a material port. A protective cover is further provided at the bottom of the centering filling head, and a bottle mouth sealing gasket is provided between the protective cover and the centering filling head.

[0006] Furthermore, a second strip bearing is provided between the wine valve sealing spring seat and the wine valve rod. A support column is provided on one side of the valve seat, the cylinder assembly is fixed on the support column, the cylinder assembly is connected with the connecting pipe support, and a back gas channel communicated with the wine valve rod is provided inside the connecting pipe support. The connecting pipe support and the spring clamping block flange are fixedly connected by long screws. The wine valve sealing spring seat is fixed on the valve seat by short screws.

[0007] Furthermore, the cylinder assembly includes an upper cylinder, a lower cylinder, and a piston rod installed between the upper cylinder and the lower cylinder. A cylinder diaphragm is installed on the piston rod, and the edge of the cylinder diaphragm is fixed at the joint of the upper cylinder and the lower cylinder. The lower end of the piston rod extends out of the lower cylinder and contacts the top of the connecting pipe support.

[0008] Furthermore, to achieve overall automatic control, the control component includes a bottom plate installed on one side of the valve seat, and a first control valve, a second control valve, a third control valve, and a fourth control valve installed on the bottom plate and capable of communicating with each other. The first control valve consists of a first upper valve body, a first lower valve body, and a first valve body installed between the first upper valve body and the first lower valve body; the second control valve consists of a second upper valve body, a second lower valve body, and a second valve body installed between the second upper valve body and the second lower valve body; the third control valve consists of a third upper valve body, a third lower valve body, and a third valve body installed between the third upper valve body and the third lower valve body; the fourth control valve consists of a fourth upper valve body, a fourth lower valve body, and a fourth valve body installed between the fourth upper valve body and the fourth lower valve body.

[0009] Furthermore, the measuring cylinder assembly is installed in the middle of the valve seat. The measuring cylinder assembly includes a measuring cylinder and a floating ball rod installed inside the measuring cylinder; a floating ball capable of moving up and down along the floating ball rod is provided on the floating ball rod. The upper end of the floating ball rod extends out of the measuring cylinder and is connected with a floating ball control component. A positioning ring is provided at the bottom of the floating ball rod. A measuring cylinder support is provided between the measuring cylinder and the floating ball control component.

[0010] Furthermore, the bottom plate and the connecting pipe support are connected through a connecting pipe; a conduit is provided between the measuring cylinder support and the bottom plate.

[0011] Further, to control the filling volume of the measuring cylinder, a measuring cylinder supply valve is further provided on the valve seat. The measuring cylinder supply valve includes a liquid valve rod located inside the valve seat and a supply valve seal spring seat installed on the valve seat; a spring clamping positioning block is provided on the upper part of the liquid valve rod passing through the supply valve seal spring seat, and a supply valve cylinder is connected to the top end of the liquid valve rod; a spring is provided between the spring clamping positioning block and the supply valve seal spring seat; the supply valve cylinder is fixed on the valve seat through a support sleeve rod.

[0012] Further, to achieve quantitative filling, a filling channel is provided inside the valve seat, and the measuring cylinder is internally connected to the inside of the wine valve sleeve through the filling channel.

[0013] Further, to achieve the sealing between the centering filling head and the container mouth, the centering component includes a centering guide rod, a guide rod connecting plate, a roller shaft block, a lifting cylinder installed on the guide rod connecting plate, and a roller installed on the roller shaft block; a movable centering rod is provided at the lower part of the guide rod connecting plate; the lower end of the movable centering rod passes through one side of the cavity and is provided with a centering filling head fixing plate, and the centering filling head is clamped on the centering filling head fixing plate.

[0014] Furthermore, in order to adapt to the filling of the can mouth structure of the pop can, another adaptation structure of the centering filling head is that the inner wall of the lower part of the centering filling head is in a hourglass shape, and a can mouth groove is provided at the bottom end of the centering filling head, and a can mouth gasket is provided in the can mouth groove; another adaptation structure of the return air diverter is that the lower part of the return air diverter is in an umbrella shape and is hollow inside and communicated with the wine valve rod.

[0015] The beneficial effects of the present invention are as follows: A pop can and bottled universal carbonated filling valve includes a filling assembly, a control assembly, a measuring cylinder assembly and a centering assembly. The control assembly is respectively communicated with the measuring cylinder assembly and the filling assembly. Through the mutual cooperation of the above components, multi-functional filling and filling of various containers can be realized on one valve, solving the problem of single filling of filling machines existing in major filling machine manufacturers at home and abroad. An electronic filling valve that is universal for glass bottles and pop cans is developed on the basis of the structure of the measuring cylinder type electronic filling valve. This valve can realize the mutual conversion between glass bottle filling and pop can filling under the condition of only replacing a small number of parts. Only by replacing two centering filling head parts can the conversion be completed, which is very suitable for multi-purpose flexible line production, can better serve users and improve its filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For the sake of easy explanation, the present invention will be described in detail by the following preferred embodiments and accompanying drawings.

[0017] Figure 1 is the overall sectional structure schematic diagram of a pop can and bottled universal carbonated filling valve of the present invention;

[0018] Figure 2 is the three-dimensional structure diagram of the overall structure of a pop can and bottled universal carbonated filling valve of the present invention;

[0019] Figure 3 is the structure schematic diagram of the centering filling head applicable to the bottled container in a pop can and bottled universal carbonated filling valve of the present invention;

[0020] Figure 4 is the structure schematic diagram of the centering filling head applicable to the pop can container in a pop can and bottled universal carbonated filling valve of the present invention;

[0021] Figure 5 is the glass bottle filling schematic diagram;

[0022] Figure 6 is the pop can filling schematic diagram;

[0023] Figure 7 is the schematic diagram of the control assembly in a pop can and bottled universal carbonated filling valve of the present invention;

[0024] Figure 8It is a schematic structural diagram of the first control valve in a universal gas-filled filling valve for cans and bottles according to the present invention;

[0025] Figure 9 It is a schematic structural diagram of the second control valve in a universal gas-filled filling valve for cans and bottles according to the present invention;

[0026] Figure 10 It is a schematic structural diagram of the third control valve in a universal gas-filled filling valve for cans and bottles according to the present invention;

[0027] Figure 11 It is a schematic structural diagram of the fourth control valve in a universal gas-filled filling valve for cans and bottles according to the present invention.

[0028] In the figure: filling assembly 1, control assembly 2, measuring cylinder assembly 3, centering assembly 4, cavity 11, valve seat 12, wine valve sleeve 13, wine valve rod 14, connecting pipe support 141, spring clamping block 142, wine valve sealing spring seat 143, spring clamping block flange 144, wine valve spring 145, cylinder assembly 5, lower wine outlet 131, lower wine outlet gasket 1311, housing 15, centering filling head 6, first belt bearing 61, lip seal ring 62, threaded port 146, gas return diverter 7, thread 71, narrow wall structure 72, material port 63, shield 64, bottle mouth gasket 65, second belt bearing 1431, support column 121, gas return channel 1411, long screw 8, short screw 81, upper part of cylinder 51, lower part of cylinder 52, piston rod 53, cylinder diaphragm 54, bottom plate 21, first control valve 22, second control valve 23, third control valve 24, fourth control valve 25, first upper valve body 221, first lower valve body 222, first valve body 223, second upper valve body 231, second lower valve body 232, second valve body 233, third upper valve body 241, third lower valve body 242, third valve body 243, fourth upper valve body 251, fourth lower valve body 252, fourth valve body 253, valve seat 12, measuring cylinder 31, float rod 32, float 33, float control assembly 34, positioning ring 35, measuring cylinder support 36, connecting pipe 1412, conduit 361, measuring cylinder supply valve 37, liquid valve rod 371, supply valve sealing spring seat 372, spring clamping positioning block 373, supply valve cylinder 374, spring 375, support sleeve rod 3741, filling channel 122, centering guide rod 41, guide rod connecting plate 42, roller shaft block 43, lifting cylinder 44, roller 45, movable centering rod 46, centering filling head fixing plate 47, hourglass structure 601, can mouth groove 602, can mouth gasket 603, umbrella structure 701, rod guide block 147. Detailed implementation manners

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, hermetically connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0031] The following further describes a universal carbonated filling valve for cans and bottles according to the present invention with reference to the accompanying drawings:

[0032] As Figures 1-6 shown, a universal carbonated filling valve for cans and bottles includes a filling assembly 1, a control assembly 2, a measuring cylinder assembly 3, and a centering assembly 4. The control assembly 2 is respectively communicated with the measuring cylinder assembly 3 and the filling assembly 1. The filling assembly 1 includes a cavity 11, a valve seat 12 installed on the cavity 11, a wine valve sleeve 13 passing through the cavity 11 to connect the valve seat 12, and a wine valve rod 14 located inside the wine valve sleeve 13. Different functional chambers (not marked) are provided in the structure of the cavity. At the same time, a filling channel 122 is provided in the valve seat 12. The upper end of the wine valve rod 14 extends out of the valve seat 12 and is successively provided with a connecting pipe support 141, a spring clamping block 142, and a wine valve sealing spring seat 143 from top to bottom. A spring clamping block flange 144 is sleeved on the spring clamping block 142. An air return channel 1411 communicating with the wine valve rod 14 is provided inside the connecting pipe support 141. The wine valve rod is a hollow structure and has the function of air return. An interface end (not marked) is provided outside the air return channel 1411, and then a connecting pipe 1412 is connected thereto. The connecting pipe support 141 and the spring clamping block flange 144 are fixedly connected by a long screw 8 to form an integral body. The wine valve sealing spring seat 143 is fixed on the valve seat 12 by a short screw 81. A second strip bearing 1431 is provided between the wine valve sealing spring seat 143 and the wine valve rod 14 to improve the smooth movement of the wine valve rod. A wine valve spring 145 is provided between the spring clamping flange 144 and the wine valve sealing spring seat 143. A cylinder assembly 5 is connected to the upper end of the connecting pipe support 141. A support column 121 is provided on one side of the valve seat 12. The cylinder assembly 5 is fixed on the support column 121 to form an independent fixed entity.

[0033] In this embodiment, the lower part of the wine valve sleeve 13 is narrowed inward to form a wine outlet 131, and the overall structure is more concise. Under the same structure, it can be adapted to a variety of gas return shunts 7 and centering filling heads 6, greatly improving the adaptability. A valve stem guide block 147 is also provided at the lower part of the wine valve stem 14 located inside the wine valve sleeve 13. The lower end of the wine valve stem 14 is adapted to the wine outlet 131 and is provided with a wine outlet gasket 1311 to seal the wine outlet. A housing 15 is sleeved on the wine valve sleeve 13, and the housing is fixed around the wine valve sleeve. A detachable centering filling head 6 is provided between the housing 15 and the wine valve sleeve 13. Different specifications of centering filling heads can be quickly replaced through the detachable structure. The inside of the centering filling head 6 is hollow and is sleeved into the housing in a form similar to a sleeve. The centering filling head 6 is installed on the inner wall of the housing 15 and can move up and down in the housing. In order to improve the sealing performance, a first strip bearing 61 and a lip seal ring 62 are provided between the centering filling head 6 and the housing 15.

[0034] In this embodiment, the cylinder assembly 5 is in contact connection with the top of the connecting pipe support 141. The cylinder assembly 5 includes a cylinder upper part 51, a cylinder lower part 52, and a piston rod 53 installed between the cylinder upper part 51 and the cylinder lower part 52. After the cylinder upper part and the cylinder lower part are combined, a piston chamber is formed, and the piston rod is installed in the piston chamber. A cylinder diaphragm 54 is installed on the piston rod 53. In order to improve the airtightness, the edge of the cylinder diaphragm 54 is fixed at the joint of the cylinder upper part 51 and the cylinder lower part 52. The lower end of the piston rod 53 extends outside the cylinder lower part 52 and contacts the top of the connecting pipe support 141. When the piston moves downward, it will drive the connecting pipe support and the wine valve stem to move downward simultaneously and seal the wine outlet. Since the piston rod and the connecting pipe support are not fixedly connected, when the piston rod moves upward to cancel the downward force applied, the connecting pipe support will reset upward under the action of the wine valve spring and drive the wine valve stem to move upward at the same time, and the wine outlet will open.

[0035] In this embodiment, the control assembly 2 includes a bottom plate 21 installed on one side of the valve seat 12, a first control valve 22, a second control valve 23, a third control valve 24, and a fourth control valve 25 installed on the bottom plate 21. The bottom plate 21 is communicated with the connecting pipe support 141 through the connecting pipe 1412. The first control valve 22 is composed of a first upper valve body 221, a first lower valve body 222, and a first valve body 223 installed between the first upper valve body 221 and the first lower valve body 222. An inner cavity (not labeled) is formed inside, and a piston structure (not labeled) is provided in the cavity (not labeled). The opening and closing of the valve body are controlled by the piston structure (not labeled). The second control valve 23 is composed of a second upper valve body 231, a second lower valve body 232, and a second valve body 233 installed between the second upper valve body 231 and the second lower valve body 232. An inner cavity (not labeled) is formed inside, and a piston structure (not labeled) is provided in the cavity (not labeled). The opening and closing of the valve body are controlled by the piston structure (not labeled). The third control valve 24 is composed of a third upper valve body 241, a third lower valve body 242, and a third valve body 243 installed between the third upper valve body 241 and the third lower valve body 242. An inner cavity (not labeled) is formed inside, and a piston structure (not labeled) is provided in the cavity (not labeled). The opening and closing of the valve body are controlled by the piston structure (not labeled). The fourth control valve 25 is composed of a fourth upper valve body 251, a fourth lower valve body 252, and a fourth valve body 253 installed between the fourth upper valve body 251 and the fourth lower valve body 252. An inner cavity (not labeled) is formed inside, and a piston structure (not labeled) is provided in the cavity (not labeled). The opening and closing of the valve body are controlled by the piston structure (not labeled).

[0036] In the filling process, the container bottle, the wine valve rod, the connecting pipe support, the connecting pipe, and the bottom plate are communicated. Vacuum pumping and backpressure are performed through the third control valve and the fourth control valve on the bottom plate. To implement filling procedures such as carbon dioxide oxygen flushing, vacuum pumping, and backpressure, all components are connected through four control valves. The first control valve and the second control valve are respectively connected to the connecting pipe through the bottom plate. The third control valve and the fourth control valve are connected to the filling channel, and the third control valve and the fourth control valve are connected to each other. An exhaust channel is also provided on the fourth control valve. The conduit is connected to the pressurized cavity (not labeled) inside the cavity through the bottom plate.

[0037] In this embodiment, the measuring cylinder assembly 3 is installed in the middle of the valve seat 12, between the filling assembly and the control assembly. The measuring cylinder assembly 3 includes a measuring cylinder 31 and a float rod 32 installed inside the measuring cylinder 31. A float 33 that can move up and down along the float rod 32 is provided on the float rod 32. The upper end of the float rod 32 extends outside the measuring cylinder 31 and is connected to a float control assembly 34. A positioning ring 35 is provided at the bottom of the float rod 32. A measuring cylinder support 36 is provided between the measuring cylinder 31 and the float control assembly 34. The measuring cylinder support is in communication with the inside of the measuring cylinder. A channel (not labeled) communicating with the outside is provided inside the measuring cylinder support. Then, a conduit 361 is provided between the channel inside the measuring cylinder support 36 and the bottom plate 21. The measuring cylinder 31 is in internal communication with the inside of the wine valve sleeve 13 through a filling channel 122.

[0038] In this embodiment, a measuring cylinder supply valve 37 is further provided on the valve seat 12. The measuring cylinder supply valve is located between the measuring cylinder assembly and the bottom plate. The measuring cylinder supply valve 37 includes a liquid valve rod 371 located inside the valve seat 12 and a supply valve seal spring seat 372 installed on the valve seat 12. A spring clamping positioning block 373 is provided on the upper part of the liquid valve rod 371 passing through the supply valve seal spring seat 372. A supply valve cylinder 374 is connected to the top end of the liquid valve rod 371. A spring 375 is provided between the spring clamping positioning block 373 and the supply valve seal spring seat 372. The supply valve cylinder 374 is fixed on the valve seat 12 through a support sleeve rod 3741. The liquid valve rod of the supply valve is controlled by the supply valve cylinder. The liquid valve rod is inside the valve seat. An inlet hole is provided at the valve seat corresponding to the bottom end of the liquid valve rod. The inlet hole is in communication with the cavity. Multiple chambers (not labeled) are provided inside the cavity. The working areas include material storage, pressurization, etc. Among them, the chamber communicating with the supply valve is for material storage. When the liquid valve rod is opened, feeding can be carried out, and it is closed when feeding is not required.

[0039] In this embodiment, the centering assembly 4 includes a centering guide rod 41, a guide rod connecting plate 42, a roller shaft block 43, a lifting cylinder 44 installed on the guide rod connecting plate 42, and a roller 45 installed on the roller shaft block 43. First, the lifting cylinder is fixed at the set position of the filling machine in an inverted manner, with the movable end facing down and connected to the guide rod connecting plate. The guide rod connecting plate is driven to move up and down by the lifting cylinder. In addition, a movable centering rod 46 is provided at the lower part of the guide rod connecting plate 42. The movable centering rod can move up and down along the centering guide rod and move up and down under the drive of the lifting cylinder. A centering filling head fixing plate 47 is provided at one end of the lower part of the movable centering rod 46 passing through the cavity 11. The centering filling head 6 is stuck on the centering filling head fixing plate 47. Through the centering assembly, the centering filling head can be pressed down onto the mouth of the container during filling, so that the bottle mouth gasket is sealed with the bottle mouth. After filling is completed, the centering filling head can be lifted up and withdrawn from the bottle mouth to complete the filling work.

[0040] In this embodiment, first, there is a centering filling head 6 designed for the mouth of a bottled container. The inner wall of its lower part contracts inward and corresponds to the wine outlet 131 to form a material port 63. The structure at the material port of the lower part of the centering filling head is similar to the structure at the wine outlet of the lower part of the wine valve sleeve 13. A shield 64 is also provided at the bottom of the centering filling head 6. A bottle mouth gasket 65 is provided between the shield 64 and the centering filling head 6. The wine valve gasket is close to the material port. When the mouth of the bottled container is closely attached to the bottle mouth gasket, the material port, the wine outlet, and the bottle mouth form a connected blanking cavity (not marked); the wine valve rod 14 is hollow inside and has a threaded port 146 at the lower part. The gas return diverter 7 has a thread 71 at the upper part. The gas return diverter 7 is detachably installed on the threaded port 146. The lower part of the gas return diverter designed for the mouth of the bottled container is a narrow wall structure 72. The gas return diverter, the wine valve sleeve, and the centering filling head are optimized in design to adapt to the filling container with the bottle mouth structure. The inside of the gas return diverter is hollow and connected to the wine valve rod 14, and the air in the container bottle can be discharged.

[0041] Working principle: Before filling, for a glass bottle container, replace the centering filling head suitable for the mouth of the glass bottle container. During filling, the container is placed at the preset position through the bottle feeding mechanism, and then through the movable centering rod 46, the centering filling head clamped on the centering filling head fixing plate moves downward to fit closely with the container bottle mouth and form a sealed space. Before filling, first, through the first control valve and the second control valve, pre-filling processes such as vacuum pumping and backpressure are carried out. After completion, filling starts. First, the cylinder assembly 5 is closed to release the wine valve rod to reset upward, thereby opening the sealed wine outlet. At the same time, the measuring cylinder supply valve also opens the corresponding sealed feeding port (not marked), and filling starts. When the preset filling volume is reached, the cylinder assembly 5 presses the wine valve rod downward and then seals the wine outlet, and the cylinder supply valve is closed synchronously. Then, pressure relief and other operations are carried out through the third control valve and the fourth control valve. Finally, the bottle is taken out to complete filling.

[0042] Embodiment 2

[0043] Under the condition that other structures remain unchanged and the filling process remains unchanged, in this embodiment, by disassembling and replacing another adapted structure of the centering filling head 6, it is mainly applicable to the can mouth structure. The inner wall of the lower part of the centering filling head 6 is in a hourglass shape structure 601, and a can mouth groove 602 is provided at the bottom end of the centering filling head 6. A can mouth gasket 603 is provided in the can mouth groove 602; another adapted structure of the gas return diverter 7, the lower part of the gas return diverter 7 is in an umbrella shape structure 701, and the inside is hollow and connected to the wine valve rod 14. The filling process of this embodiment is the same as that of Embodiment 1, except that it is suitable for filling containers with a can mouth structure.

[0044] The present invention relates to a universal gas-filled filling valve for cans and bottles, which includes a filling component, a control component, a measuring cylinder component and a centering component. The control component is respectively connected to the measuring cylinder component and the filling component. Through the mutual cooperation of the above components, multi-functional filling and filling of various containers can be realized on one valve, solving the problem of single filling of filling machines existing in major filling machine manufacturers at home and abroad. An electronic filling valve that is universal for glass bottles and cans is developed on the basis of the structure of the measuring cylinder type electronic filling valve. This valve can realize the mutual conversion between glass bottle filling and can filling under the condition of only replacing a small number of parts. Only by replacing two centering filling head parts can the conversion be completed. It is very suitable for multi-purpose flexible line production, can better serve users and improve its filling efficiency.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. 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 universal gas filling valve for cans and bottles, characterized in that: It comprises a filling component, a control component, a measuring cylinder component and a centering component, wherein the control component is connected with the measuring cylinder component and the filling component respectively; the filling component comprises a cavity, a valve seat installed on the cavity, a wine valve sleeve passing through the cavity and connected to the valve seat, and a wine valve stem located in the wine valve sleeve; the upper end of the wine valve stem extends out of the valve seat and is provided with a connecting pipe support, a spring clamping block, and a wine valve sealing spring seat in sequence from top to bottom; a spring clamping block flange is sleeved on the spring clamping block; a wine valve spring is provided between the spring clamping flange and the wine valve sealing spring seat; the upper end of the connecting pipe support is connected with a cylinder component; the lower part of the wine valve sleeve is narrowed inwardly to form a wine lower opening; the lower part of the wine valve stem is adapted and A wine lower opening sealing gasket is provided; a cover shell is provided on the wine valve sleeve, and a detachable centering filling head is provided between the cover shell and the wine valve sleeve; the centering filling head is hollow inside, installed on the inner wall of the cover shell, and a first strip bearing and a lip sealing ring are provided between the centering filling head and the cover shell; the wine valve stem is hollow inside and a threaded opening is provided at the lower part, and a return air diverter is installed on the threaded opening; the return air diverter is provided with threads at the upper part and a narrow wall structure at the lower part, and the hollow inside is connected to the wine valve stem; the inner wall of the lower part of the centering filling head shrinks inwards and forms a material opening corresponding to the wine lower opening, and a protective cover is also provided at the bottom of the centering filling head, and a bottle mouth sealing gasket is provided between the protective cover and the centering filling head.

2. A universal gas filling valve for cans and bottles according to claim 1, characterized in that: A second strip bearing is provided between the wine valve sealing spring seat and the wine valve stem; a pillar is provided on one side of the valve seat, the cylinder assembly is fixed on the pillar, the cylinder assembly is connected to the connecting pipe support, and an air return channel connected to the wine valve stem is provided inside the connecting pipe support; the connecting pipe support is fixedly connected to the spring clamping block flange by long screws; the wine valve sealing spring seat is fixed to the valve seat by short screws.

3. A universal gas filling valve for cans and bottles according to claim 2, characterized in that: The cylinder assembly includes an upper cylinder part, a lower cylinder part and a piston rod installed between the upper cylinder part and the lower cylinder part, a cylinder diaphragm is installed on the piston rod, and the edge of the cylinder diaphragm is fixed at the junction of the upper cylinder part and the lower cylinder part; the lower end of the piston rod extends out of the lower cylinder part and contacts with the top of the connecting pipe support.

4. A universal gas filling valve for cans and bottles according to claim 1, characterized in that: The control assembly includes a base plate installed on one side of the valve seat, a first control valve, a second control valve, a third control valve, and a fourth control valve installed on the base plate and interconnected, the first control valve consisting of a first upper valve body, a first lower valve body, and a first valve body installed between the first upper valve body and the first lower valve body; the second control valve consists of a second upper valve body, a second lower valve body, and a second valve body installed between the second upper valve body and the second lower valve body; the third control valve consists of a third upper valve body, a third lower valve body, and a third valve body installed between the third upper valve body and the third lower valve body; the fourth control valve consists of a fourth upper valve body, a fourth lower valve body, and a fourth valve body installed between the fourth upper valve body and the fourth lower valve body.

5. A universal gas filling valve for cans and bottles according to claim 4, characterized in that: The measuring cylinder assembly is installed in the middle of the valve seat, and the measuring cylinder assembly includes a measuring cylinder and a float rod installed in the measuring cylinder; the float rod is provided with a float that can move up and down along the float rod, the upper end of the float rod extends out of the measuring cylinder and is connected to a float control assembly, a positioning ring is provided at the bottom of the float rod, and a measuring cylinder support is provided between the measuring cylinder and the float control assembly.

6. A universal gas filling valve for cans and bottles according to claim 5, characterized in that: The bottom plate is connected to the connecting pipe support through a connecting pipe; a conduit is arranged between the measuring cylinder support and the bottom plate.

7. A universal gas filling valve for cans and bottles according to claim 6, characterized in that: A measuring cylinder replenishing valve is also provided on the valve seat, and the measuring cylinder replenishing valve includes a liquid valve stem located in the valve seat and a replenishing valve sealing spring seat installed on the valve seat; a spring clamping positioning block is provided on the upper part of the liquid valve stem through the replenishing valve sealing spring seat, and a replenishing valve cylinder is connected to the top end of the liquid valve stem; a spring is provided between the spring clamping positioning block and the replenishing valve sealing spring seat; the replenishing valve cylinder is fixed to the valve seat by a supporting sleeve rod.

8. A universal gas filling valve for cans and bottles according to claim 7, characterized in that: A filling channel is arranged in the valve seat, and the measuring cylinder is communicated with the interior of the wine valve sleeve through the filling channel.

9. The universal gas-containing filling valve for cans and bottles according to claim 1, characterized in that: The centering component includes a centering guide rod, a guide rod connecting plate, a roller shaft block, a lifting cylinder installed on the guide rod connecting plate and a roller installed on the roller shaft block. A movable centering rod is provided at the lower part of the guide rod connecting plate; a centering filling head fixing plate is provided at the lower end of the movable centering rod passing through one side of the cavity, and the centering filling head is clamped on the centering filling head fixing plate.

10. The universal gas-containing filling valve for cans and bottles according to claim 1, characterized in that: Another adapter structure of the described centering filling head, wherein the inner wall of the lower part of the centering filling head is in an hourglass-shaped structure, a tank mouth groove is provided at the bottom end of the centering filling head, and a tank mouth sealing gasket is provided in the tank mouth groove; another adapter structure of the described return air diverter, wherein the lower part of the return air diverter is in an umbrella-shaped structure, and the internal hollow part is connected to the wine valve stem.

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