Filling device for fruit and vegetable juice concentrated product and control method

Abstract

The invention discloses a filling device for fruit and vegetable juice concentrated products and a control method, the filling device comprises a conveying mechanism and a filling mechanism, and the conveying mechanism is provided with a filling station; the filling mechanism comprises a filling pipeline system, the filling pipeline system comprises at least one filling head, a liquid storage container, a filling pump, a switching three-way valve and a filling transition module, the filling transition module comprises a filling cylinder and a piston, and the piston divides the interior of the filling cylinder into a first filling cavity and a second filling cavity; the filling pump is connected between the liquid storage container and a liquid inlet port of the switching three-way valve, two liquid outlet ports of the switching three-way valve are connected with the first filling cavity and the second filling cavity respectively, a first control valve is connected between at least one filling head and the first filling cavity, and a second control valve is connected between at least one filling head and the second filling cavity. According to the fruit juice filling device, the piston is driven to reciprocate through liquid injection to achieve filling of filling liquid, and the fruit juice filling amount of each time can be accurately controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of filling, and in particular to a filling device and a control method for fruit and vegetable juice concentrate products. Background Art

[0002] During the fruit juice production process, the juice needs to be bottled. At present, in order to improve production efficiency, filling equipment is generally used to automatically fill the juice. However, the existing filling equipment has the following defects during use: the existing filling equipment directly extracts and fills the juice through a filling pump. There is a certain delay in each start and stop of the filling pump, and the flow rate is difficult to control, making it difficult to accurately control the amount of juice filled each time. Summary of the Invention The object of the present invention is to provide a filling device and control method for fruit and vegetable juice concentrate products to solve one or more technical problems existing in the prior art and at least provide a beneficial option or create conditions.

[0003] The technical solutions adopted to solve the above technical problems are: The present invention provides a filling device for fruit and vegetable juice concentrate products, comprising: A conveying mechanism is provided with a conveying channel, wherein the conveying channel is provided with a filling station; A filling mechanism is provided at the filling station, comprising a filling pipeline system, comprising at least one filling head, a liquid storage container, a filling pump, a switching three-way valve, and a filling transition module. The filling transition module comprises a filling cylinder and a piston axially slidingly and sealingly disposed within the filling cylinder. The piston divides the interior of the filling cylinder into a first filling chamber and a second filling chamber. The filling pump is connected between the liquid storage container and a liquid inlet port of the switching three-way valve. Two liquid outlet ports of the switching three-way valve are respectively connected to the first filling chamber and the second filling chamber. The switching three-way valve is configured to switch the filling pump to communicate with the first filling chamber or the second filling chamber. A first control valve is connected between at least one of the filling heads and the first filling chamber, the first control valve being configured to control the connection and disconnection between the filling head and the first filling chamber. A second control valve is connected between at least one of the filling heads and the second filling chamber, the second control valve being configured to control the connection and disconnection between the filling head and the second filling chamber.

[0004] The beneficial effects of the filling device of the present invention are: The present invention sequentially conveys the filling containers to the filling stations through the conveying channel. During filling, by controlling and switching the three-way valve, the first control valve, and the second control valve, the filling pump injects the filling liquid in the liquid storage container into the first filling chamber or the second filling chamber at high pressure, thereby driving the piston to reciprocate in the filling cylinder. When the first filling chamber is filled with liquid, the piston compresses the second filling chamber, and the filling liquid in the second filling chamber is poured into the filling container through the filling head. When the second filling chamber is filled with liquid, the piston compresses the first filling chamber. , the filling liquid in the first filling chamber is poured into the filling container through the filling head, the filling amount of the filling liquid is accurately controlled by the volume of the first filling chamber and the second filling chamber, and the filling of the filling liquid is realized while the filling pump is injecting liquid. Compared with the traditional filling directly through the filling pump, the present invention arranges a filling transition module between the filling pump and the filling head, and realizes the filling of the filling liquid by driving the piston to reciprocate through liquid injection. The filling amount of the juice liquid each time can be accurately controlled, and the driving method is simple, only the power of the filling pump is required.

[0005] As a further improvement of the above technical solution, the filling mechanism also includes a filling drive system, which includes a lifting frame located at the filling station and a filling drive assembly that drives the lifting frame to rise and fall. At least one of the filling heads is installed on the lifting frame.

[0006] As a further improvement of the above technical solution, the filling mechanism further includes a lifting adjustment system, which includes a lifting seat and an adjustment drive assembly that drives the lifting seat to move up and down, and the filling drive system is installed on the lifting seat.

[0007] As a further improvement of the above technical solution, the filling mechanism also includes a positioning system, which includes a positioning plate located beside the conveying channel and a positioning drive assembly that drives the positioning plate to move laterally. The lateral movement direction of the positioning plate is arranged perpendicular to the conveying direction of the conveying channel. The positioning plate is provided with at least one positioning groove corresponding to at least one filling head, and the positioning groove is configured to engage with the filling container on the conveying channel to position the filling container.

[0008] As a further improvement of the above technical solution, the positioning system also includes a liquid receiving trough, which is located below at least one of the filling heads. The liquid receiving trough and the positioning plate are arranged at intervals along the lateral movement direction of the positioning plate. The positioning drive assembly is also used to drive the liquid receiving trough to move laterally below at least one of the filling heads, so that the liquid receiving trough and the positioning plate move synchronously. When the positioning trough is separated from the filling container on the conveying channel, the liquid receiving trough moves to directly below the filling head; when the positioning trough is engaged with the filling container on the conveying channel, the liquid receiving trough moves to the side below the filling head.

[0009] As a further improvement of the above technical solution, the conveying mechanism also includes two material-blocking assemblies, which are respectively arranged at the feed end and the discharge end of the filling station, and the two material-blocking assemblies are adjustably arranged along the conveying direction of the conveying channel. The material-blocking assembly includes a material-blocking block and a material-blocking driving unit that drives the material-blocking block to move horizontally, and the material-blocking block is used to block and release the filling container in the conveying channel.

[0010] As a further improvement of the above technical solution, at least one of the two ends of the filling cylinder is provided with an adjustable end cover, and the adjustable end cover is adjustable and slidable along the axial direction of the filling cylinder.

[0011] As a further improvement of the above technical solution, at least one of the two ends of the filling cylinder is provided with an adjustment assembly, the adjustment assembly includes an adjustment frame fixed to the end of the filling cylinder, and an adjustment screw extending axially, the adjustment screw is threadedly connected to the adjustment frame, one end of the adjustment screw is rotatably fixedly connected to the outer end surface of the adjustment end cover, and the other end of the adjustment screw extends out of the filling cylinder.

[0012] As a further improvement of the above technical solution, the adjusting end covers are provided at both ends of the filling cylinder, the piston is arranged between the two adjusting end covers, the adjusting end covers are provided with a liquid inlet and a liquid outlet, the liquid inlets on the two adjusting end covers are respectively connected to the two liquid outlet ports of the switching three-way valve, and the liquid outlets on the two adjusting end covers are respectively connected to the inlet ends of the first control valve and the second control valve.

[0013] In addition, the present invention also proposes a control method applicable to the filling device, the control method comprising: Storing the liquid to be filled in the liquid storage container; Controlling and starting the conveying channel to convey the filling containers to the filling stations in sequence; Controlling the switching three-way valve to switch the first filling chamber to communicate with the filling pump, controlling the closing of the first control valve and the opening of the second control valve, controlling the activation of the liquid storage container to inject liquid into the first filling chamber, and causing the piston to move and compress the second filling chamber to a minimum volume; Controlling the switching three-way valve to switch the second filling chamber to communicate with the filling pump, controlling the opening of the first control valve and the closing of the second control valve, controlling the activation of the liquid storage container, filling the second filling chamber with liquid, causing the piston to move and compress the first filling chamber to a minimum volume, so as to pour the filling liquid into the filling container through the filling head; The switching three-way valve is controlled to switch to connect the first filling chamber with the filling pump, the first control valve is controlled to be closed and the second control valve is controlled to be opened, the liquid storage container is controlled to be started, the first filling chamber is filled with liquid, and the piston is moved to compress the second filling chamber to the minimum volume, so that the filling liquid is poured into the next filling container through the filling head.

[0014] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a structural diagram of an embodiment of the filling pipeline system provided by the present invention; Figure 2 This is a schematic diagram of the filling pipeline system provided by the present invention, when the first filling chamber is being filled with liquid in one embodiment; Figure 3 This is a schematic diagram of the filling pipeline system provided by the present invention, when the second filling chamber is being filled with liquid in one embodiment; Figure 4 The filling device provided by the present invention is a structural diagram of an embodiment thereof. Figure 1 ; Figure 5 yes Figure 4 A partial enlarged view of part A; Figure 6 The filling device provided by the present invention is a structural diagram of an embodiment thereof. Figure 2 ; Figure 7 This is a front view of an embodiment of the filling device provided by the present invention; Figure 8 This is a flow chart of the steps of an embodiment of the control method provided by the present invention; Figure Number: Conveying mechanism 100; conveying channel 110; filling station 111; material blocking assembly 120; material blocking block 121; material blocking drive unit 122; Filling mechanism 200; filling pipeline system 210; filling head 211; liquid storage container 212; filling pump 213; switching three-way valve 214; filling transition module 215; filling cylinder 2151; piston 2152; first filling chamber 2153; second filling chamber 2154; adjusting end cover 2155; liquid inlet 2156; liquid outlet 2157; adjusting frame 2158; adjusting screw 2159; first control valve 21 6; second control valve 217; filling drive system 220; lifting frame 221; filling drive assembly 222; spring 223; sealing step 224; lifting adjustment system 230; lifting seat 231; adjustment drive assembly 232; positioning system 240; positioning plate 241; positioning groove 2411; positioning drive assembly 242; transverse frame 2421; transverse drive unit 2422; liquid receiving tank 243; frame 250; Filling container 300. DETAILED DESCRIPTION

[0016] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0017] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, "a plurality" refers to more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0019] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0020] The technical solutions of the present invention will be described clearly and completely below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments.

[0021] Existing filling equipment all directly extracts and fills the fruit juice through the filling pump 213. There is a certain delay in each start and stop process of the filling pump 213, and the flow rate is difficult to control, making it difficult to accurately control the filling volume of the fruit juice each time. Therefore, the present invention proposes a filling device for fruit and vegetable juice concentrate products, which can accurately control the filling volume of the fruit juice each time.

[0022] like Figures 1 to 7 As shown, the filling device of the present invention includes a conveying mechanism 100 and a filling mechanism 200 .

[0023] like Figure 4 、 Figure 5 、 Figure 6 As shown, the conveying mechanism 100 of the present invention is provided with a conveying channel 110 for conveying filled containers 300. The conveying channel 110 is provided with a filling station 111. The filling station 111 has a feeding end and a discharging end. During filling, the filled containers 300 are sequentially conveyed through the filling station 111 via the conveying channel 110. The conveying mechanism 100 of this embodiment adopts a belt conveyor device. In other embodiments, other types of conveying mechanisms 100 may be adopted.

[0024] The filling mechanism 200 is located at the filling station 111. Figure 1 As shown, the filling mechanism 200 of the present invention includes a filling pipeline system 210, which includes at least one filling head 211, a liquid storage container 212, a filling pump 213, a switching three-way valve 214, and a filling transition module 215. The liquid storage container 212 of this embodiment is used to store filling liquid, and the switching three-way valve 214 is provided with a liquid inlet port and two liquid outlet ports. The liquid inlet port can be switched to be connected to one of the liquid outlet ports by controlling the switching three-way valve 214. The inlet of the filling pump 213 is connected to the liquid storage container 212, and the outlet of the filling pump 213 is connected to the liquid inlet port of the switching three-way valve 214.

[0025] The filling transition module 215 includes a filling cylinder 2151 and a piston 2152 that is axially slidably sealed in the filling cylinder 2151. The piston 2152 divides the interior of the filling cylinder 2151 into a first filling chamber 2153 and a second filling chamber 2154. The two liquid outlet ports of the switching three-way valve 214 are connected to the first filling chamber 2153 and the second filling chamber 2154 respectively. The switching three-way valve 214 is configured to switch the filling pump 213 to be connected to the first filling chamber. 2153 or the second filling chamber 2154, a first control valve 216 is connected between at least one filling head 211 and the first filling chamber 2153, and the first control valve 216 is configured to control the on-off between the filling head 211 and the first filling chamber 2153, and a second control valve 217 is connected between at least one filling head 211 and the second filling chamber 2154, and the second control valve 217 is configured to control the on-off between the filling head 211 and the second filling chamber 2154.

[0026] During operation, the present invention sequentially transports the filling containers 300 to the filling station 111 through the transport channel 110. During filling, by controlling the switching three-way valve 214, the filling pump 213 injects the filling liquid in the liquid storage container 212 into the first filling chamber 2153 or the second filling chamber 2154 under high pressure, thereby driving the piston 2152 to reciprocate in the filling cylinder 2151. Figure 2 As shown, when the first filling chamber 2153 is filled with liquid, the first control valve 216 is closed, the second control valve 217 is opened, the piston 2152 compresses the second filling chamber 2154, and the filling liquid in the second filling chamber 2154 is poured into the filling container 300 through the filling head 211; Figure 3 As shown, when the second filling chamber 2154 is filled with liquid, the second control valve 217 is closed and the first control valve 216 is opened. The piston 2152 compresses the first filling chamber 2153, and the filling liquid in the first filling chamber 2153 is poured into the filling container 300 through the filling head 211. The filling amount of the filling liquid is accurately controlled by the volume of the first filling chamber 2153 and the second filling chamber 2154, and the filling of the filling liquid is achieved while the filling pump 213 is injecting liquid. Compared with the traditional filling method directly using the filling pump 213, the present invention provides a filling transition module 215 between the filling pump 213 and the filling head 211. The piston 2152 is driven to reciprocate by liquid injection to achieve filling of the filling liquid. The filling amount of the juice liquid each time can be accurately controlled, and the driving method is simple, only the power of the filling pump 213 is required.

[0027] In order to adjust the filling volume, at least one of the two ends of the filling cylinder 2151 of the present invention is provided with an adjusting end cover 2155, and the adjusting end cover 2155 is adjustable along the axial sliding of the filling cylinder 2151. In this embodiment, the movement of the piston 2152 is limited by the end of the filling cylinder 2151. By adjusting the axial position of the adjusting end cover 2155, the movement stroke of the piston 2152 can be adjusted to adjust the maximum volume of the first filling chamber 2153 and the second filling chamber 2154.

[0028] Furthermore, if Figure 1 As shown, at least one of the two ends of the filling cylinder 2151 is provided with an adjustment assembly, which includes an adjustment frame 2158 fixed to the end of the filling cylinder 2151 and an adjustment screw 2159 extending axially. The adjustment screw 2159 is threadedly connected to the adjustment frame 2158, and one end of the adjustment screw 2159 is rotatably fixedly connected to the outer end surface of the adjustment end cover 2155, and the other end of the adjustment screw 2159 extends out of the filling cylinder 2151. In this embodiment, the adjustment end cover 2155 is driven to move axially by rotating the adjustment screw 2159, and the adjustment end cover 2155 can be self-locked.

[0029] Furthermore, both ends of the filling cylinder 2151 of this embodiment are provided with adjusting end covers 2155, each adjusting end cover 2155 is configured with an adjusting component, the piston 2152 is arranged between the two adjusting end covers 2155, and the filling volume is adjusted by connecting the distance between the two adjusting end covers 2155.

[0030] In addition, in order to improve the utilization of space, the regulating end cover 2155 of this embodiment is provided with a liquid inlet 2156 and a liquid outlet 2157. The liquid inlets 2156 on the two regulating end covers 2155 are respectively connected to the two liquid outlet ports of the switching three-way valve 214 through pipes, and the liquid outlets 2157 on the two regulating end covers 2155 are respectively connected to the inlet ends of the first control valve 216 and the second control valve 217 through pipes.

[0031] The first control valve 216 , the second control valve 217 and the switching three-way valve 214 are all solenoid valves to achieve automatic control.

[0032] When the filling container 300 is transported to the filling station 111, the filling head 211 of this embodiment needs to be extended into the filling container 300 for filling. Figures 4 to 7 As shown, the filling mechanism 200 of this embodiment further includes a filling drive system 220. The filling drive system 220 includes a lifting frame 221 located at the filling station 111 and a filling drive assembly 222 that drives the lifting frame 221 to move up and down. At least one filling head 211 is installed on the lifting frame 221. In this embodiment, the lifting frame 221 is used to drive the filling head 211 to move up and down to achieve the entry and exit of the filling head 211 in the filling container 300.

[0033] In this embodiment, a plurality of filling heads 211 are arranged at intervals along the conveying direction, and a plurality of filling containers 300 can be filled simultaneously. Each filling head 211 can be configured with a filling transition module 215, or a filling transition module 215 can supply a plurality of filling heads 211, depending on actual conditions.

[0034] Furthermore, the filling heads 211 of this embodiment are adjustable along the conveying direction to adjust the distance between two adjacent filling heads 211 to accommodate filling containers 300 of different sizes.

[0035] like Figure 5 As shown, a spring 223 is provided between the filling head 211 and the lifting frame 221 of this embodiment, and a buffering elastic force is applied to the filling head 211 by the spring 223. An annular sealing step 224 is provided on the outer periphery of the filling head 211. The filling head 211 contacts the container opening of the filling container 300 through the sealing step 224. Under the action of the buffering elastic force, the sealing step 224 and the container opening of the filling container 300 are sealed and contacted to prevent liquid from spraying out. In order to achieve convection, a one-way air vent (not shown) is provided on the sealing step 224, and the internal air of the filling container 300 flows out through the air vent.

[0036] Among them, the filling drive component 222 adopts a cylinder to increase the speed of the filling head 211. Since the stroke of the cylinder is fixed, in order to adapt to filling containers 300 of different heights, such as Figures 4 to 7 As shown, the filling mechanism 200 of this embodiment also includes a lifting and adjusting system 230. The lifting and adjusting system 230 includes a lifting seat 231 and an adjusting drive assembly 232 that drives the lifting seat 231 to move up and down. The filling drive system 220 is installed on the lifting seat 231. It can be understood that the lifting frame 221 and the filling drive assembly 222 are installed together on the lifting seat 231. The initial height of the filling head 211 can be adjusted according to filling containers 300 of different heights.

[0037] In this embodiment, the adjustment drive assembly 232 utilizes a lifting screw and nut structure. The lifting base 231 is mounted on the frame 250 for vertical sliding movement. The lifting adjustment system 230 includes a lifting screw and a motor. The lifting screw is rotatably mounted on the frame 250 and is threadedly connected to the lifting base 231. The motor is connected to the lifting screw via a transmission chain. In this embodiment, two lifting screws are provided to enhance the stability of the lifting base 231 during its movement.

[0038] like Figures 4 to 7As shown, the filling mechanism 200 of this embodiment further includes a positioning system 240, which includes a positioning plate 241 located beside the conveying channel 110 and a positioning drive assembly 242 that drives the positioning plate 241 to move laterally. The lateral movement direction of the positioning plate 241 is perpendicular to the conveying direction of the conveying channel 110, as shown in FIG. Figure 5 As shown, the positioning plate 241 is provided with at least one positioning groove 2411 corresponding to at least one filling head 211. The positioning groove 2411 is configured to engage with the filling container 300 on the conveying channel 110 to position the filling container 300. When the filling container 300 is conveyed to the filling station 111, the positioning drive assembly 242 drives the positioning plate 241 to approach the filling container 300. At this time, the positioning groove 2411 engages with the filling container 300. After the filling container 300 is positioned, the filling head 211 is activated again.

[0039] like Figure 5 As shown, the positioning drive assembly 242 of this embodiment includes a transverse frame 2421 and a transverse drive unit 2422. The transverse drive unit 2422 drives the transverse frame 2421 to move laterally. The transverse frame 2421 is slidably installed on the frame 250, and the positioning plate 241 is installed on the transverse frame 2421. The transverse drive unit 2422 of this embodiment adopts a cylinder.

[0040] Furthermore, the present invention takes into account that after the filling head 211 is filled, there will be a certain amount of dripping, which will drip onto the outside of the filling container 300, affecting the quality of the product. Figure 5 As shown, the positioning system 240 of this embodiment also includes a liquid receiving trough 243, which is located below at least one filling head 211. The liquid receiving trough 243 and the positioning plate 241 are arranged at intervals along the lateral movement direction of the positioning plate 241. The positioning drive assembly 242 is also used to drive the liquid receiving trough 243 to move laterally below at least one filling head 211, so that the liquid receiving trough 243 and the positioning plate 241 move synchronously. After the filling head 211 is filled and reset, the positioning drive assembly 242 drives the liquid receiving trough 243 to move laterally to the bottom of the filling head 211 to collect the dripping liquid, and at the same time, the positioning trough 2411 is separated from the filling container 300 on the conveying channel 110; before the filling head 211 is filled, the positioning drive assembly 242 drives the liquid receiving trough 243 to move laterally to the side below the filling head 211, and at the same time, the positioning trough 2411 is engaged with the filling container 300 on the conveying channel 110.

[0041] As well as Figures 4 to 7As shown, the conveying mechanism 100 of this embodiment also includes two material blocking assemblies 120, which are respectively arranged at the feed end and the discharge end of the filling station 111. The material blocking assembly 120 includes a material blocking block 121 and a material blocking driving unit 122 that drives the material blocking block 121 to move horizontally. The material blocking block 121 is used to block and release the filling container 300 in the conveying channel 110. The front material blocking assembly 120 is used to block and release the incoming filling container 300, and the rear material blocking assembly 120 is used to block and release the filled filling container 300.

[0042] In addition, the two material blocking assemblies 120 of this embodiment are adjustably arranged along the conveying direction of the conveying channel 110 to adjust the blocking range.

[0043] In addition, the present invention also proposes a control method, which is applicable to the filling device, such as Figure 8 As shown, the control method includes: Step S100: storing the liquid to be filled in the liquid storage container 212; Step S200: controlling and starting the conveying channel 110 to sequentially convey the filling containers 300 to the filling stations 111; Step S300: Controlling the switching three-way valve 214 to switch the first filling chamber 2153 to communicate with the filling pump 213, controlling the closing of the first control valve 216 and the opening of the second control valve 217, controlling the activation of the liquid storage container 212, and filling the first filling chamber 2153 with liquid, causing the piston 2152 to move and compress the second filling chamber 2154 to a minimum volume; Step S400: Controlling the switching three-way valve 214 to switch the second filling chamber 2154 to communicate with the filling pump 213, controlling the opening of the first control valve 216 and the closing of the second control valve 217, controlling the activation of the liquid storage container 212, and filling the second filling chamber 2154 with liquid, causing the piston 2152 to move and compress the first filling chamber 2153 to a minimum volume, thereby pouring the filling liquid into the filling container 300 through the filling head 211; Step S500: Control the switching three-way valve 214 to switch to the first filling chamber 2153 to connect with the filling pump 213, control the closing of the first control valve 216 and the opening of the second control valve 217, control the start of the liquid storage container 212, and fill the first filling chamber 2153 with liquid, so that the piston 2152 moves to compress the second filling chamber 2154 to the minimum volume, so as to fill the filling liquid into the next filling container 300 through the filling head 211.

[0044] Step S300 is a liquid injection standby stage, which puts the first filling chamber 2153 in a standby state.

[0045] In step S200 , the filling container 300 is blocked and positioned by the material blocking assembly 120 and the positioning system 240 so that the filling container 300 is positioned in a state ready for filling.

[0046] Between step S400 and step S500 , step S200 is repeated to output the filled filling container 300 , and then a new filling container 300 is input to the filling station 111 .

[0047] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" indicate that a particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A filling device for fruit and vegetable juice concentrate products, characterized in that: include: A conveying mechanism is provided with a conveying channel, wherein the conveying channel is provided with a filling station; A filling mechanism is provided at the filling station, comprising a filling pipeline system, comprising at least one filling head, a liquid storage container, a filling pump, a switching three-way valve, and a filling transition module. The filling transition module comprises a filling cylinder and a piston axially slidingly and sealingly disposed within the filling cylinder. The piston divides the interior of the filling cylinder into a first filling chamber and a second filling chamber. The filling pump is connected between the liquid storage container and a liquid inlet port of the switching three-way valve. Two liquid outlet ports of the switching three-way valve are respectively connected to the first filling chamber and the second filling chamber. The switching three-way valve is configured to switch the filling pump to communicate with the first filling chamber or the second filling chamber. A first control valve is connected between at least one of the filling heads and the first filling chamber, the first control valve being configured to control the connection and disconnection between the filling head and the first filling chamber. A second control valve is connected between at least one of the filling heads and the second filling chamber, the second control valve being configured to control the connection and disconnection between the filling head and the second filling chamber.

2. The filling device according to claim 1, characterized in that: The filling mechanism further includes a filling drive system, which includes a lifting frame located at the filling station and a filling drive assembly for driving the lifting frame to move up and down. At least one filling head is installed on the lifting frame.

3. The filling device according to claim 2, characterized in that: The filling mechanism further comprises a lifting adjustment system, which comprises a lifting seat and an adjustment drive assembly for driving the lifting seat to move up and down, and the filling drive system is installed on the lifting seat.

4. The filling device according to claim 3, characterized in that: The filling mechanism also includes a positioning system, which includes a positioning plate located beside the conveying channel and a positioning drive assembly that drives the positioning plate to move laterally. The lateral movement direction of the positioning plate is arranged perpendicular to the conveying direction of the conveying channel. The positioning plate is provided with at least one positioning groove corresponding to at least one filling head. The positioning groove is configured to engage with the filling container on the conveying channel to position the filling container.

5. The filling device according to claim 4, characterized in that: The positioning system also includes a liquid receiving trough, which is located below at least one of the filling heads. The liquid receiving trough and the positioning plate are arranged at intervals along the lateral movement direction of the positioning plate. The positioning drive assembly is also used to drive the liquid receiving trough to move laterally below at least one of the filling heads, so that the liquid receiving trough and the positioning plate move synchronously. When the positioning trough is separated from the filling container on the conveying channel, the liquid receiving trough moves to directly below the filling head; when the positioning trough is engaged with the filling container on the conveying channel, the liquid receiving trough moves to the side below the filling head.

6. The filling device according to claim 1, characterized in that: The conveying mechanism also includes two material-blocking assemblies, which are respectively arranged at the feed end and the discharge end of the filling station. The two material-blocking assemblies are adjustably arranged along the conveying direction of the conveying channel. The material-blocking assembly includes a material-blocking block and a material-blocking driving unit that drives the material-blocking block to move horizontally. The material-blocking block is used to block and release the filling container in the conveying channel.

7. The filling device according to claim 1, characterized in that: At least one of the two ends of the filling cylinder is provided with an adjustable end cover, and the adjustable end cover is adjustable and slidable along the axial direction of the filling cylinder.

8. The filling device according to claim 7, characterized in that: At least one of the two ends of the filling cylinder is provided with an adjustment assembly, which includes an adjustment frame fixed to the end of the filling cylinder and an adjustment screw extending axially. The adjustment screw is threadedly connected to the adjustment frame, one end of the adjustment screw is rotatably fixedly connected to the outer end surface of the adjustment end cover, and the other end of the adjustment screw extends out of the filling cylinder.

9. The filling device according to claim 8, characterized in that: The adjusting end covers are provided at both ends of the filling cylinder, the piston is provided between the two adjusting end covers, the adjusting end covers are provided with a liquid inlet and a liquid outlet, the liquid inlets on the two adjusting end covers are respectively connected to the two liquid outlet ports of the switching three-way valve, and the liquid outlets on the two adjusting end covers are respectively connected to the inlet ends of the first control valve and the second control valve.

10. A control method, characterized in that: Applicable to the filling device according to any one of claims 1 to 9, the control method includes: Storing the liquid to be filled in the liquid storage container; Controlling and starting the conveying channel to convey the filling containers to the filling stations in sequence; Controlling the switching three-way valve to switch the first filling chamber to communicate with the filling pump, controlling the closing of the first control valve and the opening of the second control valve, controlling the activation of the liquid storage container to inject liquid into the first filling chamber, and causing the piston to move and compress the second filling chamber to a minimum volume; Controlling the switching three-way valve to switch the second filling chamber to communicate with the filling pump, controlling the opening of the first control valve and the closing of the second control valve, controlling the activation of the liquid storage container, filling the second filling chamber with liquid, causing the piston to move and compress the first filling chamber to a minimum volume, so as to pour the filling liquid into the filling container through the filling head; The switching three-way valve is controlled to switch to connect the first filling chamber with the filling pump, the first control valve is controlled to be closed and the second control valve is controlled to be opened, the liquid storage container is controlled to be started, the first filling chamber is filled with liquid, and the piston is moved to compress the second filling chamber to the minimum volume, so that the filling liquid is poured into the next filling container through the filling head.

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