Automatic liquid fertilizer filling production line

Abstract

The application provides a kind of liquid fertilizer automatic filling production line, the liquid fertilizer automatic filling production line includes bottle feeding system, multiple bottle filling systems, stereoscopic warehouse and tray supply system, the bottle feeding system includes the first conveyor belt extending along the first preset path, multiple mechanical arms are arranged on the side of the first conveyor belt along the first preset path at intervals, and the bottle feeding station corresponding to multiple mechanical arms;Each bottle filling system includes a second conveyor belt, and filling equipment, cap screwing equipment, code spraying equipment and labeling equipment are sequentially arranged along the extension path of the second conveyor belt;The stereoscopic warehouse is connected to the discharge side of multiple bottle filling systems;The tray supply system is arranged on the side of the stereoscopic warehouse away from the bottle filling system.The liquid fertilizer automatic filling production line provided by the application can directly store the plastic container after filling and facilitate delivery;Improve filling efficiency, integrated production, save manpower and material resources.

Description

Technical Field

[0001] This invention belongs to the field of filling technology, specifically relating to an automatic filling production line for liquid fertilizer. Background Technology

[0002] After plastic containers are manufactured, they need to be filled with liquid fertilizer. Traditionally, the manufactured plastic containers are transported directly to the vicinity of the filling equipment, where they are manually stacked. After filling, they are transferred using forklifts or other means, and then labeled. It is evident that the various steps in the traditional filling process are relatively separate, preventing continuous production. The intermediate transfer process consumes a significant amount of manpower and resources and reduces filling efficiency. Summary of the Invention

[0003] This invention provides an automated liquid fertilizer filling production line, which aims to solve the technical problem that the various processes in the traditional filling process are relatively separate, making it impossible to achieve a continuous production process and thus resulting in low filling efficiency.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an automatic liquid fertilizer filling production line, comprising:

[0005] The bottle feeding system includes a first conveyor belt extending along a first preset path, a plurality of robotic arms spaced apart on one side of the first conveyor belt along the first preset path, and bottle feeding stations corresponding one-to-one with the plurality of robotic arms.

[0006] Multiple bottling systems correspond one-to-one with multiple bottle-feeding stations. Each bottling system includes a second conveyor belt and a filling device, a capping device, a coding device, and a labeling device arranged sequentially along the extension path of the second conveyor belt. The feeding side of each second conveyor belt is connected to the bottle-feeding station. The filling device includes multiple filling ports. The capping device includes a capping fixture that can move up and down. The capping fixture is used to grab the bottle cap and drive the bottle cap to rotate. The labeling device includes a labeling fixture for fixing the label paper.

[0007] An automated storage unit is connected to the discharge side of multiple bottling systems, and a transport trolley is provided inside the automated storage unit.

[0008] A pallet supply system is located on the side of the automated storage and retrieval system opposite to the bottling system. The pallet supply system includes a pallet feeder and a third conveyor belt connecting the pallet feeder and the automated storage and retrieval system.

[0009] In one possible implementation, each of the robotic arms is equipped with a gripping fixture, the gripping fixture comprising:

[0010] A fixing plate is fixed to the robotic arm;

[0011] Two clamping plates are provided on opposite sides of the fixing plate, and the two clamping plates are used to clamp the plastic container.

[0012] A suction cup is provided on the fixing plate and located between the two clamping plates.

[0013] In one possible implementation, the fixing plate is provided with a sliding groove and two bolts that slide in the sliding groove. Each clamping plate has an internal threaded hole on the side facing the fixing plate. The bolts cooperate with the internal threaded holes to fix the clamping plate. The two clamping plates are used to move relative to each other or backward along the sliding groove.

[0014] In one possible implementation, a bottle-clamping conveyor assembly is connected between the second conveyor belt and the bottle-feeding station, the bottle-clamping conveyor assembly comprising:

[0015] A conveyor chain is connected to the second conveyor belt and the bottle feeding station;

[0016] Two bottle-clamping conveyor belts are located on opposite sides of the conveyor chain. These two conveyor belts are used to clamp plastic containers and move them.

[0017] A first drive motor is connected to at least one of the bottle-clamping conveyor belts.

[0018] In one possible implementation, the second conveyor belt includes a first conveyor section corresponding to the filling equipment, a second conveyor section corresponding to the capping equipment, a third conveyor section corresponding to the coding equipment, and a fourth conveyor section corresponding to the labeling equipment, as well as a plurality of second drive motors, which are respectively connected to the first conveyor section, the second conveyor section, the third conveyor section, and the fourth conveyor section.

[0019] In one possible implementation, the capping device further includes:

[0020] A capping machine includes a capping conveyor belt and a feeding tray connected to the capping conveyor belt. The feeding tray has a telescopic part at one end facing away from the capping conveyor belt. The telescopic part is used to support the bottle cap and drive the bottle cap to move.

[0021] A support frame is positioned above the second conveyor belt;

[0022] A capping cylinder is mounted on the bracket;

[0023] A capping motor is located on the piston rod of the capping cylinder;

[0024] The capping fixture is located on the output shaft of the capping motor, and the capping fixture is used to grip the bottle cap on the telescopic part.

[0025] In one possible implementation, the feeding tray includes a fixed support plate fixed to the discharge side of the upper cover conveyor belt, a sliding support plate slidably engaged with the fixed support plate, and a sliding cylinder disposed on the side of the fixed support plate with a piston rod fixedly connected to the sliding support plate, wherein the sliding support plate forms the telescopic part;

[0026] The sliding tray is provided with multiple slide rails, and the side of the sliding tray away from the fixed tray is also provided with a material clamping strip. The material clamping strip is provided with multiple cover grooves facing the openings of the slide rails, and the multiple cover grooves correspond one-to-one with the multiple slide rails.

[0027] In one possible implementation, the coding device further includes a detection module, and a material pushing device is provided between the coding device and the labeling device, the material pushing device comprising:

[0028] The drive arm has a degree of freedom to move along a direction perpendicular to the extension path of the second conveyor belt;

[0029] A push plate is fixed to the side of the drive arm facing the second conveyor belt;

[0030] A lifting platform is located on the side of the second conveyor belt opposite to the push plate, and is used to receive plastic containers.

[0031] In one possible implementation, multiple inkjet printers are spaced apart along the extension path of the second conveyor belt, and the material pusher is provided between two adjacent inkjet printers and between the inkjet printer and the labeling device.

[0032] In one possible implementation, the pallet feeder includes:

[0033] Pallet feeding conveyor belt;

[0034] The frame is located on the discharge side of the pallet feeding conveyor belt, and the bottom of the frame is provided with a feeding port;

[0035] A lifting base plate, located within the frame, is used to support and lift the pallet;

[0036] The snap-fit ​​fixture includes two telescopic arms located on opposite sides of the frame, which are used to engage with holes on the outside of the tray.

[0037] Compared with the prior art, the automatic liquid fertilizer filling production line of this application embodiment can quickly provide plastic containers to be filled and pallets for stacking by setting up a bottle feeding system and a pallet supply system; the three-dimensional warehouse can directly store the filled plastic containers and facilitate shipment; multiple bottling systems can be arranged in parallel to perform multiple bottling processes at the same time, improving filling efficiency; and after filling, it also includes capping, coding and labeling equipment, integrating production and saving manpower and material resources. Attached Figure Description

[0038] Figure 1 A top view of the automatic liquid fertilizer filling production line provided in an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the main structure of the bottling system used in an embodiment of the present invention;

[0040] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;

[0041] Figure 4 This is a right-side view of the capping device used in an embodiment of the present invention.

[0042] Figure 5 This is a top view of the feeding device used in an embodiment of the present invention;

[0043] Figure 6 This is a top view of the gripping fixture used in an embodiment of the present invention.

[0044] Figure 7 This is a schematic diagram of the main view structure of the gripping tool used in an embodiment of the present invention;

[0045] Figure 8 This is a schematic diagram of the main structure of the bottle clamping and conveying assembly used in an embodiment of the present invention;

[0046] Figure 9 This is a right-side structural schematic diagram of the bottle-clamping and conveying assembly used in an embodiment of the present invention;

[0047] Figure 10 This is a front view schematic diagram of the pallet feeding rack used in an embodiment of the present invention.

[0048] Explanation of reference numerals in the attached figures:

[0049] 10-Bottle feeding system; 11-First conveyor belt; 12-Robotic arm; 13-Bottle feeding station; 14-Gripping fixture; 141-Fixing plate; 142-Clamping plate; 143-Suction cup; 144-Groove; 145-Bolt;

[0050] 20-Bottling system; 21-Second conveyor belt; 211-First conveyor section; 212-Second conveyor section; 213-Third conveyor section; 214-Fourth conveyor section; 22-Filling equipment; 221-Filling nozzle; 23-Capping equipment; 231-Capping tooling; 232-Support; 233-Capping cylinder; 234-Capping motor; 235-Guide rail; 236-First mounting base; 237-Adjusting cylinder; 24-Coding equipment; 241-Third mounting base; 242-Coding machine; 243-Wall panel; 244-Pressure plate; 25-Labeling equipment; 26-Capping machine; 261-Capping conveyor belt; 262-Feeding tray; 263-Fixed pallet; 264-Sliding pallet; 265-Slide rail; 266-Clamping strip; 267-Capping groove; 268-Guide plate; 27-Raw material tank;

[0051] 30 - Automated storage unit; 31 - Lifting frame;

[0052] 40-Pallet supply system; 41-Pallet feeding rack; 411-Pallet feeding conveyor belt; 412-Frame; 413-Lifting base plate; 414-Telescopic arm; 42-Third conveyor belt;

[0053] 50-Bottle clamping conveyor assembly; 51-Conveyor chain; 52-Bottle clamping conveyor belt; 53-First drive motor;

[0054] 60 - Material pushing device; 61 - Drive arm; 62 - Push plate; 63 - Lifting platform;

[0055] 70 - Plastic containers. Detailed Implementation

[0056] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0057] Please refer to the following: Figures 1 to 10The automatic liquid fertilizer filling production line provided by the present invention will now be described. The automatic liquid fertilizer filling production line includes a bottle feeding system 10, multiple bottling systems 20, an automated storage and retrieval system 30, and a pallet supply system 40. The bottle feeding system 10 includes a first conveyor belt 11 extending along a first preset path, multiple robotic arms 12 spaced along the first preset path on one side of the first conveyor belt 11, and bottle feeding stations 13 corresponding to each robotic arm 12. The multiple bottling systems 20 correspond to the multiple bottle feeding stations 13. Each bottling system 20 includes a second conveyor belt 21, and filling equipment 22, capping equipment 23, coding equipment 24, and labeling equipment 25 sequentially arranged along the extension path of the second conveyor belt 21. Each second conveyor belt 21 has its feed side connected to the bottle feeding station 13. The filling equipment 22 includes multiple filling ports 221. The capping equipment 23 includes a capping fixture 231 that can move up and down. The capping fixture 231 is used to grab bottle caps and drive the bottle caps to rotate. The labeling equipment 25 includes a labeling fixture for fixing label paper. The automated storage and retrieval system 30 is connected to the discharge side of multiple bottling systems 20. The automated storage and retrieval system 30 is equipped with a transport trolley. The pallet supply system 40 is located on the side of the automated storage and retrieval system 30 away from the bottling system 20. The pallet supply system 40 includes a pallet feeder 41 and a third conveyor belt 42 connecting the pallet feeder 41 and the automated storage and retrieval system 30.

[0058] It is easy to understand that since the bottle feeding station 13 needs to supply material to the second conveyor belt 21, there is also a corresponding conveyor roller and motor on the bottle feeding station 13. The motor drives the conveyor roller to rotate so as to transport the plastic container 70 on the bottle feeding station 13 to the second conveyor belt 21.

[0059] It should be noted that the filling equipment 22, the capping equipment 23, and the coding equipment 24 are all equipped with acoustic and optical sensors. The acoustic and optical sensors are used to sense the position of the plastic container 70, and the second conveyor belt 21 stops when the plastic container 70 reaches the preset position. The plastic container 70 is then conveyed again after filling, capping, or coding is completed.

[0060] In the automatic liquid fertilizer filling production line provided in this embodiment, during the specific production process, stacks of plastic containers 70 enter the first conveyor belt 11, with a certain interval maintained between adjacent stacks of plastic containers 70 (equal to the spacing between adjacent robotic arms 12). After a preset number (equal to the number of robotic arms 12) of stacks of plastic containers 70 have been conveyed, with each stack of plastic containers 70 corresponding to one robotic arm 12, the first conveyor belt 11 stops, and the robotic arms 12 begin to operate. Each robotic arm 12 picks up a single or single row of plastic containers 70 from each corresponding stack of plastic containers 70 and places them on the bottle-feeding station 13. Plastic containers 70 enter the second conveyor belt 21. As the second conveyor belt 21 moves the plastic containers 70, filling, capping, coding, and labeling are completed sequentially. After filling, the plastic containers 70 enter the automated storage and retrieval system 30 for storage. During storage, they need to be stacked on pallets. The transport trolley in the automated storage and retrieval system 30 can transport pallets from the pallet supply system 40 to the discharge side of the second conveyor belt 21, and then connect the plastic containers 70 on the second conveyor belt 21 to the pallets and transport them to the automated storage and retrieval system 30 for storage. When it is time to ship, the transport trolley directly removes the stacked plastic containers 70 from the automated storage and retrieval system 30 for loading and transfer.

[0061] Compared with the prior art, the automatic liquid fertilizer filling production line of the present invention can quickly provide plastic containers 70 to be filled and pallets for stacking by setting up a bottle feeding system 10 and a pallet supply system 40; by setting up a three-dimensional warehouse 30, the filled plastic containers 70 can be directly stored and conveniently shipped; multiple bottling systems 20 are arranged in parallel to perform multiple bottling processes simultaneously, improving filling efficiency; and after filling, it also includes capping, coding and labeling equipment 25, which integrates production and saves manpower and material resources.

[0062] In some embodiments, an improved implementation of the robotic arm 12 described above can employ, as follows: Figures 6 to 7 The structure shown. See also Figures 6 to 7 Each robotic arm 12 is equipped with a gripping fixture 14, which includes a fixed plate 141, two clamping plates 142, and a suction cup 143. The fixed plate 141 is fixed to the robotic arm 12; the two clamping plates 142 are located on opposite sides of the fixed plate 141 and are used to clamp the plastic containers 70; the suction cup 143 is located on the fixed plate 141 and between the two clamping plates 142. After the stacked plastic containers 70 enter through the first conveyor belt 11, they stop near the robotic arm 12. The robotic arm 12 drives the gripping fixture 14 to move. The two clamping plates 142 on the gripping fixture 14 grip the opposite sides of a row or side of plastic containers 70, realizing the gripping of a single row or a single plastic container 70. During the gripping process, the suction cup 143 adheres tightly to the surface of the plastic container 70 to prevent the plastic container 70 from falling due to insufficient clamping force.

[0063] In some embodiments, an improved implementation of the fixing plate 141 may employ, as follows: Figures 6 to 7 The structure shown. See also Figures 6 to 7 The fixing plate 141 is provided with a sliding groove 144 and two bolts 145 that slide in the sliding groove 144. Each clamping plate 142 has an internally threaded hole on the side facing the fixing plate 141. The bolts 145 engage with the internally threaded holes to fix the clamping plate 142. The two clamping plates 142 are used to move relative to each other or backward along the sliding groove 144. When corresponding to plastic containers 70 of different widths, the positions of the two bolts 145 are adjusted in the sliding groove 144 on the fixing plate 141, and then the two clamping plates 142 are connected to the corresponding bolts 145 to fix the position of the clamping plates 142 on the fixing plate 141, which is convenient for adjustment and has a wider range of applications.

[0064] In some embodiments, an improved implementation of the bottling system 20 described above may employ, as follows: Figure 1 , Figures 8 to 9 The structure shown. See also Figure 1 , Figures 8 to 9 A bottle-clamping conveyor assembly 50 is connected between the second conveyor belt 21 and the bottle-feeding station 13. The bottle-clamping conveyor assembly 50 includes a conveyor chain 51, two bottle-clamping conveyor belts 52, and a first drive motor 53. The conveyor chain 51 is connected to the second conveyor belt 21 and the bottle-feeding station 13. The two bottle-clamping conveyor belts 52 are located on opposite sides of the conveyor chain 51 and are used to clamp the plastic container 70 and move the plastic container 70. The first drive motor 53 is connected to at least one bottle-clamping conveyor belt 52. During the process of the plastic container 70 entering the second conveyor belt 21 at the bottle-feeding station 13, the bottle-clamping conveyor belt 52 clamps the plastic container 70 and moves it until the plastic container 70 moves onto the second conveyor belt 21. This process can be adapted to the lifting and lowering of the plastic container 70 when the height of the bottle-feeding station 13 and the second conveyor belt 21 are different. In this embodiment, the bottle-feeding system 10 can be set above the bottling system 20, thereby saving space.

[0065] In an embodiment where the bottle feeding system 10 is located above the bottling system 20, a frame 412 may be provided above the bottling system 20, the bottling system 20 may be located on the frame 412, and a plurality of raw material tanks 27 may be provided on the corresponding frame 412. The raw material tanks 27 are used to hold liquid fertilizer and are connected to the filling equipment 22. The filling equipment 22 uses a power pump or other equipment to extract the liquid fertilizer from the raw material tanks 27 and fill it into the plastic container 70.

[0066] In some embodiments, an improved implementation of the second conveyor belt 21 described above may employ, as follows: Figure 2 The structure shown. See also Figure 2The second conveyor belt 21 includes a first conveyor section 211 corresponding to the filling equipment 22, a second conveyor section 212 corresponding to the capping equipment 23, a third conveyor section 213 corresponding to the coding equipment 24, and a fourth conveyor section 214 corresponding to the labeling equipment 25, as well as multiple second drive motors. The multiple second drive motors are respectively connected to the first conveyor section 211, the second conveyor section 212, the third conveyor section 213, and the fourth conveyor section 214. Since the filling equipment 22 includes multiple filling ports 221, when the plastic container 70 enters the first conveyor section 211, the bottle feeding station 13 continuously conveys the plastic bottle, but the first conveyor section 211 stops conveying. At this time, multiple plastic containers 70 can be arranged side by side on the first conveyor section 211. When the number of arranged plastic containers 70 is equal to the number of filling ports 221, the first conveyor section 211 starts, moving the multiple plastic containers 70 to the corresponding filling ports 221 for filling. Similarly, the first conveyor segment 211, the second conveyor segment 212, the third conveyor segment 213, and the fourth conveyor segment 214 can all operate independently. The conveying speed difference between adjacent conveyor segments can be used to adjust whether the plastic containers 70 are conveyed in multiple rows or individually, thus adapting to different needs such as filling, capping, and coding.

[0067] In some embodiments, a specific implementation of the capping device 23 described above may employ, as follows: Figures 2 to 4 The structure shown. See also Figures 2 to 4 The capping device 23 also includes a capping machine 26, a support 232, a capping cylinder 233, and a capping motor 234. The capping machine 26 includes a capping conveyor belt 261 and a feeding tray 262 connected to the capping conveyor belt 261. The feeding tray 262 has a telescopic part at one end facing away from the capping conveyor belt 261. The telescopic part is used to support the bottle cap and drive the bottle cap to move. The support 232 is located above the second conveyor belt 21. The capping cylinder 233 is located on the support 232. The capping motor 234 is located on the piston rod of the capping cylinder 233. The capping fixture 231 is located on the output shaft of the capping motor 234. The capping fixture 231 is used to grip the bottle cap on the telescopic part. After the plastic container 70 is conveyed to the area directly below the capping fixture 231, the second conveyor belt 21 stops. At this time, the capping machine 26 lifts the bottle cap and drops it to the telescopic part. The telescopic part causes the bottle cap to extend and be positioned directly below the capping fixture 231. After the capping fixture 231 grabs the bottle cap from the telescopic part, the telescopic part retracts. The capping fixture 231 then places the grabbed bottle cap at the mouth of the plastic container 70 and rotates it to tighten. In this embodiment, the capping machine 26 can automatically provide bottle caps to the capping fixture 231, improving capping efficiency.

[0068] Specifically, the capping fixture 231 can use a vacuum suction head to directly pick up the bottle cap and rotate it.

[0069] In some embodiments, an improved implementation of the above-described feed tray 262 may employ, as follows: Figure 4 The structure shown. See also Figure 4 The feeding tray 262 includes a fixed support plate 263 fixedly connected to the discharge side of the upper cover conveyor belt 261, a sliding support plate 264 slidably fitted to the fixed support plate 263, and a sliding cylinder provided on the side of the fixed support plate 263 with the piston rod fixedly connected to the sliding support plate 264. The sliding support plate 264 forms a telescopic part. The sliding support plate 264 is provided with multiple slides 265. The side of the sliding support plate 264 away from the fixed support plate 263 is also provided with a material clamping strip 266. The material clamping strip 266 is provided with multiple cover grooves 267 opening towards the slides 265. The multiple cover grooves 267 correspond one-to-one with the multiple slides 265. The top cover conveyor belt 261 lifts the bottle cap and slides it into each slide 265. After sliding to the end of the slide 265, the bottle cap falls into the corresponding cap slot 267. The cap slot 267 can only hold one bottle cap at a time, so as to facilitate the capping fixture 231 to grab the bottle cap and avoid grabbing too many or missing the cap.

[0070] It should be noted that there are multiple slides 265, but only one is used during operation. The width of each slide 265 is exactly equal to the outer diameter of a bottle cap, ensuring that the bottle caps are arranged in sequence to prevent stacking. During assembly, one of the slides 265 is positioned directly below the capping fixture 231, which can block the feeding side of the other slides 265 (a guide plate 268 can be further installed so that the bottle caps can be guided even when the other slides 265 are blocked).

[0071] Specifically, corresponding to multiple slides 265, the bracket 232 is provided with a guide rail 235 that slides vertically. The bracket 232 is also provided with a first mounting seat 236 that slides with the guide rail 235. The first mounting seat 236 is fixedly connected to the piston rod of the capping cylinder 233. The first mounting seat 236 is provided with an adjusting cylinder 237. The piston rod of the adjusting cylinder 237 is parallel to the extension path of the clamping strip 266. The capping motor 234 is fixed to the end of the piston rod of the adjusting cylinder 237. The first mounting seat 236 is also provided with a through groove through which the capping fixture 231 can pass. This structure can be adjusted by the adjusting cylinder 237 driving the capping motor 234 to move and adjust, thereby changing the slide 265 corresponding to the capping fixture 231 to adapt to different positions of the bottle mouth on the plastic container 70.

[0072] In some embodiments, an improved implementation of the bottling system 20 described above may employ, as follows: Figure 2 The structure shown. See also Figure 2The coding device 24 also includes a detection module. A pushing device 60 is provided between the coding device 24 and the labeling device 25. The pushing device 60 includes a drive arm 61, a push plate 62, and a lifting platform 63. The drive arm 61 has the freedom to move along a path perpendicular to the extension path of the second conveyor belt 21. The push plate 62 is fixed to the side of the drive arm 61 facing the second conveyor belt 21. The lifting platform 63 is located on the side of the second conveyor belt 21 away from the push plate 62 and is used to receive the plastic container 70. Optionally, the detection module can be an optical camera or a weighing sensor. If it is an optical camera, it can detect the quality of the coding or other components on the outer surface of the plastic container 70 by taking pictures. If it is a weighing sensor, it can determine whether the amount of liquid filled meets the standard by weighing.

[0073] In this embodiment, the settings are configured according to specific needs. After inkjet printing, the corresponding parameters of the plastic container 70 can be detected by the detection module. After detection, the information on whether it is qualified is transmitted to the push plate 62. Then, when the plastic container 70 passes the push plate 62, the drive arm 61 drives the push plate 62 to push the plastic container 70 onto the lifting platform 63. When the lifting platform 63 is full of defective products, the lifting platform 63 descends, allowing the operator to remove the defective products for manual repair and reuse or direct disposal.

[0074] It is easy to imagine that the extension and retraction of the drive arm 61 and the lifting and lowering of the lifting platform 63 can both be driven by cylinders.

[0075] In some embodiments, a specific implementation of the above-described coding device 24 may employ, as follows: Figure 2 The structure shown. See also Figure 2 The coding device 24 includes a third mounting base 241 located on one side of the second conveyor belt 21, a coding machine 242 mounted on the third mounting base 241, a surrounding plate 243 enclosing the coding machine 242, and a pressure plate 244 that is raised and lowered above the second conveyor belt 21. When the plastic container 70 reaches below the pressure plate 244, the pressure plate 244 lowers to secure the plastic container 70, and the coding machine 242 performs coding. After coding is completed, the pressure plate 244 rises, and the plastic container 70 continues to be conveyed. This process, by using the surrounding plate 243 around the coding machine 242, prevents fuel from scattering during coding, keeping the workshop clean and tidy.

[0076] Specifically, the inkjet printer 242 can be adjusted on the third mounting base 241 along a path close to or away from the second conveyor belt 21, thereby adjusting the distance between the inkjet printer 242 and the plastic container 70.

[0077] In some embodiments, an improved implementation of the above-described coding device 24 can be structured as follows. (Not shown in the figures), multiple coding devices 24 are spaced apart along the extension path of the second conveyor belt 21. Pushing devices 60 are provided between adjacent coding devices 24 and between coding devices 24 and labeling devices 25. That is, each coding device 24 is followed by a pushing device 60, which can push defective products out of the second conveyor belt 21 after multiple checks during the conveying process, preventing defective products from being mixed in due to detection errors.

[0078] In some embodiments, a specific implementation of the above-described pallet feeder 41 may employ, as follows: Figure 10 The structure shown. See also Figure 10 The pallet feeding rack 41 includes a pallet feeding conveyor belt 411, a frame 412, a lifting base plate 413, and a snap-fit ​​fixture. The frame 412 is located on the discharge side of the pallet feeding conveyor belt 411, and the bottom of the frame 412 is provided with a feeding port. The lifting base plate 413 is located inside the frame 412 and is used to support and lift the pallet. The snap-fit ​​fixture includes two telescopic arms 414 located on opposite sides of the frame 412. The telescopic arms 414 are used to engage with the holes on the outside of the pallet. After the pallet is formed, it can be directly conveyed to the frame 412 through the pallet feeding conveyor. When a pallet enters the frame 412, the lifting base plate 413 lifts the pallet, and the telescopic arm 414 extends and engages with the holes on both sides of the pallet to suspend the pallet. After the lifting base plate 413 descends, it can form a certain gap with the pallet. When the next pallet enters the frame 412, the lifting base plate 413 lifts the pallet to the bottom of the previous pallet, and the telescopic arm 414 retracts and separates from the pallet. The lifting base lifts the bottom pallet to the same height as the telescopic arm 414, and the telescopic arm 414 extends and engages with the holes on both sides of the bottom pallet. The above steps are repeated to complete the stacking of the pallets. After stacking, the pallets are conveyed to the automated storage and retrieval system 30 and stored by a transport trolley or directly supplied to the filled plastic containers 70. The filled plastic containers 70 are stacked on the pallets for storage.

[0079] Specifically, the lifting base plate 413 can be driven by a cylinder to lift and lower the pallets. When the stacked pallets need to be transported out, the lifting base plate 413 also needs to have corresponding conveyor rollers and motors to drive the conveyor rollers, so that they can be transported to the transport trolley of the automated warehouse 30 via a conveyor belt and then stored in the automated warehouse 30.

[0080] It should be noted that the automated storage and retrieval system 30 is equipped with lifting frames 31 on the side facing the bottling system 20 and the side facing the pallet supply system 40. The lifting frames 31 are equipped with lifting platforms that can lift and lower the transport trolleys and goods, thereby facilitating the entry of goods and pallets into the automated storage and retrieval system 30 for storage.

[0081] In this embodiment, the transport trolley can be an automated guided vehicle that matches the AGV system in the automated storage and retrieval system 30. Furthermore, the cap conveyor 261 (bottle cap lifting conveyor) and the inkjet printer 242 both adopt the same structure as conventional equipment.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic liquid fertilizer filling production line, characterized in that, The application relates to a bottle feeding system, a bottle filling system and a bottle labeling system. The bottle feeding system comprises a first conveying belt extending along a first preset path, a plurality of mechanical arms arranged at intervals on one side of the first conveying belt along the first preset path, and a plurality of bottle feeding stations corresponding to the plurality of mechanical arms. The bottle filling system comprises a plurality of bottle filling systems corresponding to the plurality of bottle feeding stations, each of the bottle filling systems comprising a second conveying belt, a filling device, a cap screwing device, a code spraying device and a label sticking device arranged in sequence along an extension path of the second conveying belt, a feeding side of each of the second conveying belts being connected to the bottle feeding stations, the filling device comprising a plurality of filling openings, the cap screwing device comprising a cap screwing tool capable of moving up and down, the cap screwing tool being used for grabbing a cap and rotating the cap, and the label sticking device comprising a label sticking tool for fixing a label paper. A three-dimensional warehouse is arranged at a discharging side of the bottle filling system, and the three-dimensional warehouse is internally provided with a conveying trolley. A tray supply system is arranged on a side of the three-dimensional warehouse away from the bottle filling system, and the tray supply system comprises a tray supply rack and a third conveying belt connected between the tray supply rack and the three-dimensional warehouse. The cap screwing device further comprises: a cap feeding machine comprising a cap feeding conveying belt and a feeding disc connected to the cap feeding conveying belt, one end of the feeding disc away from the cap feeding conveying belt being provided with an extension part, the extension part being used for supporting and moving a cap; a support arranged above the second conveying belt; a cap screwing cylinder arranged in the support; a cap screwing motor arranged in a piston rod of the cap screwing cylinder; the cap screwing tool is arranged on an output shaft of the cap screwing motor, and the cap screwing tool is used for grabbing the cap on the extension part; the feeding disc comprises a fixed supporting plate fixed to a discharging side of the cap feeding conveying belt, a sliding supporting plate slidingly matched with the fixed supporting plate, and a sliding cylinder arranged on a side of the fixed supporting plate and having a piston rod fixed to the sliding supporting plate, and the sliding supporting plate forms the extension part; the sliding supporting plate is provided with a plurality of sliding grooves, and a side of the sliding supporting plate away from the fixed supporting plate is further provided with a material clamping strip, the material clamping strip is provided with a plurality of clamping cover grooves opening towards the sliding grooves, and the plurality of clamping cover grooves correspond to the plurality of sliding grooves.

2. The automatic liquid fertilizer filling production line according to claim 1, characterized in that, Each of the mechanical arms is provided with a grabbing tool, and the grabbing tool comprises: a fixed plate fixed to the mechanical arm; two clamping plates arranged on opposite sides of the fixed plate, and the two clamping plates are used for clamping a plastic container; a suction cup arranged on the fixed plate and located between the two clamping plates.

3. The automatic liquid fertilizer filling production line according to claim 2, characterized in that, The fixed plate is provided with a sliding groove and two bolts slidingly matched with the sliding groove, one side of each of the clamping plates away from the fixed plate is provided with an internal thread hole, the bolts are matched with the internal thread holes to fix the clamping plates, and the two clamping plates are used for relative movement or away movement along the sliding groove.

4. The automatic liquid fertilizer filling production line according to claim 1, wherein A bottle clamping conveying assembly is connected between the second conveying belt and the bottle feeding station, and the bottle clamping conveying assembly comprises: a conveying chain connected to the second conveying belt and the bottle feeding station; two bottle clamping conveying belts arranged on opposite sides of the conveying chain, and the two bottle clamping conveying belts are used for clamping and moving a plastic container. The first driving motor is in driving connection with the bottle clamping conveying belt.

5. The automatic liquid fertilizer filling production line according to claim 1, wherein The second conveying belt comprises a first conveying section corresponding to the filling device, a second conveying section corresponding to the cap screwing device, a third conveying section corresponding to the code spraying device, a fourth conveying section corresponding to the labeling device, and a plurality of second driving motors in driving connection with the first, second, third and fourth conveying sections respectively.

6. The automatic liquid fertilizer filling production line according to claim 1, wherein The code spraying device further comprises a detection module, and a pushing device is further arranged between the code spraying device and the labeling device. The driving arm has a degree of freedom of moving along a direction perpendicular to the extension direction of the second conveying belt; The pushing plate is fixed to one side of the driving arm facing the second conveying belt; The lifting platform is arranged on a side of the second conveying belt opposite to the pushing plate and is used for receiving the plastic containers.

7. The automatic liquid fertilizer filling production line according to claim 6, characterized in that, A plurality of code spraying devices are arranged along the extension path of the second conveying belt, and the pushing device is arranged between any two adjacent code spraying devices or between the code spraying device and the labeling device.

8. The automatic liquid fertilizer filling production line according to claim 1, wherein The tray feeding rack comprises: a tray feeding conveying belt; a rack body arranged on a discharging side of the tray feeding conveying belt, wherein a bottom of the rack body is provided with a feeding port; a lifting bottom plate arranged in the rack body and used for receiving and lifting the tray; a clamping tool comprising two telescopic arms arranged on opposite sides of the rack body, wherein the telescopic arms are used for being inserted into and matched with the hole positions on the outer side of the tray.

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