Large and small bottle automatic filling combined production line and process

Abstract

The invention discloses an automatic filling combined production line and process for large and small bottles. The automatic filling combined production line comprises a first conveying line and a second conveying line which are arranged in parallel; the large bottle feeding unit, the first filling unit and the first cap screwing unit are sequentially arranged along the first conveying line; the small bottle feeding unit, the second filling unit and the second cap screwing unit are sequentially arranged along the second conveying line; the large and small bottle combining mechanism is arranged at the common tail end of the first conveying line and the second conveying line; the first carrying mechanism and the second carrying mechanism are used for carrying the bottles at the tail ends of the first conveying line and the second conveying line to the large and small bottle combination mechanism respectively; the discharging conveying line is positioned beside the large and small bottle combining mechanism; and the third carrying mechanism is used for taking out the combined large and small bottles from the large and small bottle combining mechanism and placing the combined large and small bottles on the discharging conveying line. Independent filling of large bottles and small bottles and automatic combined output of the large bottles and the small bottles can be efficiently achieved, the production efficiency is greatly improved, and the requirements of the production technology are met.

Description

[Technical field]

[0001] The invention belongs to the technical field of bottle filling equipment, and in particular relates to a large and small bottle automatic filling combined production line and process. [Background technology]

[0002] Liquid solutions need to be loaded in containers for transportation, storage, and transfer. Therefore, such products usually need to be filled during the production process. In order to achieve efficient production, various automatic filling equipment have appeared on the market.

[0003] Patent CN116605822A in the prior art discloses an automatic filling production line for liquid fertilizers, which includes a conveyor belt, a filling device, a capping device, a coding device and a labeling device sequentially arranged along the conveyor belt, to realize automatic feeding, filling, capping and labeling of the bottle body. Although the device realizes automatic filling of the bottle body. However, there is currently a combined container with a large bottle and a small bottle. When using this product, the solution in the large bottle needs to be mixed with the solution in the small bottle before use. Therefore, during production, the two solutions will be filled independently, and then the large bottle and the small bottle will be combined into an integral product for storage, transportation and transportation. Although the existing filling equipment can realize the automatic filling of liquid solutions, it cannot be directly applied to the automatic filling of the above-mentioned large and small bottle combined container.

[0004] Therefore, it is necessary to provide a new large and small bottle automatic filling combined production line and process to solve the above-mentioned technical problems. [Summary of the invention]

[0005] One of the main purposes of the present invention is to provide an automatic filling combined production line for large and small bottles, which can efficiently realize the independent filling of large bottles and small bottles and the automatic combined output of large bottles and small bottles, greatly improving the production efficiency and meeting the production process requirements.

[0006] The present invention achieves the above-mentioned purpose through the following technical scheme: an automatic filling combined production line for large and small bottles, which includes a first conveyor line and a second conveyor line arranged in parallel; a large bottle feeding unit, a first filling unit and a first capping unit arranged in sequence along the first conveyor line; a small bottle feeding unit, a second filling unit and a second capping unit arranged in sequence along the second conveyor line; a large and small bottle combination mechanism arranged at the common end of the first conveyor line and the second conveyor line; a first conveying mechanism for conveying large bottles at the end of the first conveyor line to the large and small bottle combination mechanism; a second conveying mechanism for conveying small bottles at the end of the second conveyor line to the large and small bottle combination mechanism; a material unloading conveyor line located next to the large and small bottle combination mechanism; and a third conveying mechanism for taking out the combined large and small bottles from the large and small bottle combination mechanism and placing them on the unloading conveyor line.

[0007] Furthermore, the first conveyor line and the second conveyor line are both circulating conveyor lines; the first conveyor line and the second conveyor line both convey bottle trays, and the bottle trays are provided with accommodating grooves that imitate the shapes of large bottles or small bottles; a number of positioning modules for fixing and limiting the positions of bottles are provided next to the first conveyor line and the second conveyor line corresponding to each operating station; the positioning module includes a blocking component for blocking a group of bottles containing a set number from continuing to move forward, and a front positioning component and a rear positioning component for pressing the bottles front and back.

[0008] Furthermore, the large bottle feeding unit and the small bottle feeding unit both include a bottle feeding mechanism having a bottle feeding conveyor line, a first camera, a fourth conveying mechanism and a fifth conveying mechanism sequentially arranged along the bottle feeding conveyor line, and a bottle transferring mechanism located above the first conveyor line or the second conveyor line and moving back and forth between the fourth conveying mechanism and the fifth conveying mechanism; the fourth conveying mechanism and the fifth conveying mechanism both include a multi-axis robot and a conveying module arranged at the active end of the multi-axis robot; the conveying module includes a first support plate arranged at the active end of the multi-axis robot and a plurality of first clamping jaw assemblies arranged on the first support plate.

[0009] Furthermore, the fourth conveying mechanism also includes a posture adjustment module that adjusts the bottle to a standing posture and stands in a set direction according to the bottle posture information recognized by the first camera; the posture adjustment module includes a first motor fixed on the first support plate, a rotating shaft driven by the first motor to rotate around a horizontal axis, a mounting block fixed at the end of the rotating shaft, and a suction nozzle fixed on the mounting block.

[0010] Furthermore, the bottle transfer mechanism includes a first cylinder, a second support plate driven by the first cylinder to move parallel to the conveying direction of the bottle feeding conveyor line, and a first carrier fixed on the second support plate; the first carrier is provided with a plurality of bottle receiving grooves.

[0011] Furthermore, the first filling unit and the second filling unit each include a filling mechanism, a guide tube assembly mechanism, a visual inspection mechanism and a guide tube pressing mechanism which are sequentially arranged along the conveying direction of the first conveying line or the second conveying line;

[0012] The filling mechanism includes a second motor, a third support plate driven by the second motor to move up and down, a plurality of filling heads arranged on the third support plate, and a filling system connected to the filling head for filling control;

[0013] The guide tube assembly mechanism includes a guide tube feeding module, a first offset receiving module connected to the output end of the guide tube feeding module, and an insertion and transporting module for grabbing and inserting the guide tube on the first offset receiving module into the bottle;

[0014] The visual inspection mechanism detects whether there is a flow guide tube inserted in the bottle;

[0015] The guide tube press-fitting mechanism is provided in several groups, and each group includes a second cylinder and a press rod driven by the second cylinder to move up and down.

[0016] Furthermore, the insertion and handling module includes a first XYZ-axis driving module, a fourth support plate arranged at the movable end of the first XYZ-axis driving module, a plurality of second clamping jaw assemblies arranged on the fourth support plate and used to clamp the guide tube, a second camera arranged on the fourth support plate and detecting the direction of each guide tube in the first offset material receiving module, and a fourth motor driving the second clamping jaw assembly to clamp the guide tube for angle adjustment.

[0017] Furthermore, the first capping unit and the second capping unit each include a bottle cap feeding mechanism, a bottle cap tightening mechanism, a bottle cap height detection mechanism, and a defective product rejection mechanism, which are sequentially arranged along the first conveying line or the second conveying line;

[0018] The bottle cap feeding and loading mechanism comprises a bottle cap feeding module, a second staggered receiving module docking with the output end of the bottle cap feeding module, and a bottle cap pre-tightening transport module for grabbing and pre-tightening the bottle caps received by the second staggered receiving module onto the bottles;

[0019] The bottle cap tightening mechanism includes a sixth motor, a sixth support plate driven by the sixth motor to move up and down, and a plurality of tightening modules fixed on the sixth support plate, and the tightening modules include a fifth cylinder fixed on the sixth support plate, a screwing drive member driven by the fifth cylinder to move up and down, and a bottle cap clamping claw assembly arranged at the movable end of the screwing drive member;

[0020] The bottle cap height detection mechanism comprises a sixth cylinder, a seventh support plate driven by the sixth cylinder to move up and down, a plurality of displacement sensors fixedly arranged on the seventh support plate, and a detection block arranged at the sensing end of the displacement sensor;

[0021] The defective product rejection mechanism includes a recovery tray, a second XYZ-axis drive module located above the recovery tray, and a third clamping jaw assembly arranged at the movable end of the second XYZ-axis drive module.

[0022] Furthermore, the bottle cap pre-tightening and transporting module includes a first YZ-axis driving module, a fifth support plate arranged at the movable end of the first YZ-axis driving module, a plurality of pre-tightening heads rotatably arranged on the fifth support plate, and a fifth motor fixed on the fifth support plate and driving the pre-tightening heads to rotate.

[0023] Furthermore, the large and small bottle combination mechanism includes a second carrier and a third carrier that are alternately transferred between the material receiving station and the combination station, a transfer drive module that drives the second carrier and the third carrier to transfer positions, and a combination pushing module arranged at the combination station;

[0024] The second carrier and the third carrier both include a second supporting bottom plate and a receiving groove arranged side by side on the second supporting bottom plate, the left and right sides of the receiving groove are enclosed and limited by the enclosing plate, the rear side of the receiving groove is provided with a rear blocking block for limiting the rear position of the bottle, the front side of the receiving groove is in an open form, and the combined pushing module is arranged at the front side of the combined station;

[0025] The combined pushing module groups are provided with several groups, and each group corresponds to the position of the receiving slots on the second carrier and the third carrier; each group of the combined pushing module groups includes an eighth cylinder and a pushing plate driven by the eighth cylinder to push the small bottle and the large bottle together to form a combined large and small bottle.

[0026] Furthermore, the large and small bottle combination mechanism also includes a lifting drive structure that drives the second carrier to descend to a low position to avoid height misalignment when it intersects with the third carrier; the lifting drive structure includes an eighth support plate driven by the transfer drive module to move between the material receiving station and the combination station, a bracket movably arranged on the eighth support plate, and a guide plate extending along the moving direction of the second carrier, the guide plate is provided with a lifting guide slot with a height difference, the bracket is provided with a first transmission roller extending into the lifting guide slot, and the second carrier is fixedly arranged on the top of the bracket.

[0027] Furthermore, the transfer drive module includes a seventh cylinder that drives the second supporting base plate in the third carrier to perform horizontal movement, a pair of first slide rails and a pair of second slide rails that are arranged in parallel and distributed up and down, and a synchronous belt that is arranged in parallel beside the first slide rails and performs a circular transmission along the extension direction of the first slide rails; the second supporting base plate in the third carrier is slidably set on the first slide rail and is fixedly connected to the upper belt body of the synchronous belt; the eighth support plate is slidably set on the second slide rail and is fixedly connected to the lower belt body of the synchronous belt.

[0028] Furthermore, the first transport mechanism and the second transport mechanism both include a third XYZ-axis driving module and a plurality of fourth clamping jaw assemblies disposed at the movable end of the third XYZ-axis driving module;

[0029] The third transport mechanism includes a second YZ-axis driving module, a ninth support plate arranged at the movable end of the second YZ-axis driving module, a plurality of rotating clamping modules horizontally slidingly arranged on the ninth support plate, and a spacing adjustment module fixed on the ninth support plate and adjusting the spacing between two adjacent rotating clamping modules;

[0030] The rotating clamping module comprises a tenth support plate horizontally slidably arranged on the ninth support plate, a seventh motor fixed on the tenth support plate, and a fifth clamping jaw assembly driven by the seventh motor to rotate around the Z axis;

[0031] The spacing adjustment module includes a ninth cylinder fixed on the ninth support plate and a spacing adjustment plate driven by the ninth cylinder to move up and down and located above the rotating clamping module, a plurality of horizontal guide grooves are arranged on the spacing adjustment plate, and a second transmission roller that cooperates with the horizontal guide grooves for transmission is arranged on the tenth support plate.

[0032] Another object of the present invention is to provide a large and small bottle automatic filling combined production process, which is implemented based on the large and small bottle automatic filling combined production line as described above, and includes the following steps:

[0033] S1, large bottle and small bottle loading: large bottle and small bottle loading are completed through the large bottle feeding unit and the small bottle feeding unit;

[0034] The large bottle feeding unit and the small bottle feeding unit include a bottle feeding mechanism, a fourth conveying mechanism for adjusting the bottles output by the bottle feeding mechanism to a standing posture and standing in a set direction, and a fifth conveying mechanism for conveying the bottles to the first conveying line or the second conveying line;

[0035] The bottle feeding mechanism automatically outputs the bottles, and after the bottles are adjusted to a standing state and placed in a set direction by the fourth conveying mechanism, the bottles with adjusted postures and angles are conveyed to the first conveying line and the second conveying line by the fifth conveying mechanism;

[0036] S2, filling of large bottles and small bottles and assembly of flow guide tube: filling of large bottles and small bottles and assembly of flow guide tube are completed by the first filling unit and the second filling unit;

[0037] The first filling unit and the second filling unit each include a filling mechanism, a guide tube assembly mechanism, a visual inspection mechanism, and a guide tube pressing mechanism, which are sequentially arranged along the conveying direction of the first conveying line or the second conveying line;

[0038] The filling mechanism is used to complete the filling of a group of bottles with liquid; the guide tube assembly mechanism is then used to complete the automatic feeding, loading, and angle adjustment of the guide tube and then insert it into the bottle; after the visual inspection mechanism has detected that the guide tube is correct, the guide tube is pressed into place by the guide tube pressing mechanism;

[0039] S3, capping of large bottles and small bottles: capping of large bottles and small bottles is completed by the first capping unit and the second capping unit;

[0040] The first capping unit and the second capping unit both include a bottle cap feeding mechanism, a bottle cap tightening mechanism, a bottle cap height detection mechanism, and a defective product rejection mechanism which are sequentially arranged along the first conveying line or the second conveying line;

[0041] The bottle cap feeding and loading mechanism is used to complete the feeding and pre-tightening of the bottle cap; then the bottle cap is tightened into place by the bottle cap tightening mechanism; then the bottle cap tightening height is detected by the bottle cap height detection mechanism, and the bottles with unqualified bottle caps are rejected by the defective product rejection mechanism;

[0042] S4, large and small bottle combination:

[0043] The large and small bottle combination mechanism comprises a second carrier for carrying large bottles and small bottles, a transfer drive module for driving the second carrier to transfer positions between a material receiving station and a combination station, and a combination pushing module arranged at the combination station;

[0044] The first conveying mechanism and the second conveying mechanism respectively take out a group of large bottles from the first conveying line and a group of small bottles from the second conveying line and place them in the second carrier; the large bottles and the small bottles are placed opposite to each other with their matching side surfaces, and then the large bottles and the small bottles are assembled together by using the combined pushing module to form large and small bottles;

[0045] S5, unloading: the third transport mechanism takes out a group of large and small bottles from the large and small bottle combination mechanism and places them on the unloading conveyor line to realize unloading.

[0046] Compared with the prior art, the beneficial effect of the large and small bottle automatic filling combined production line of the present invention is that it can efficiently realize the independent filling of large bottles and small bottles and the automatic combined output of large bottles and small bottles, greatly improving the production efficiency and meeting the production process requirements. Specifically,

[0047] (1) By setting up a large bottle feeding unit and a small bottle feeding unit, the bottles are arranged in a scattered manner and output to a bottle feeding conveyor line, the first camera is used to identify the position and posture information of the bottles on the bottle feeding conveyor line, and the suction nozzle on the fourth handling mechanism is used to cooperate with the motor to drive its rotation and the multi-axis robot to achieve uniform adjustment of the bottle posture, so that the bottles are in a standing state and stand up in the set direction for feeding, so that the subsequent large bottles and small bottles can be assembled by pushing;

[0048] (2) A filling mechanism, a guide tube assembly mechanism, a guide tube pressing mechanism, a bottle cap feeding mechanism, and a bottle cap tightening mechanism are sequentially arranged along the first conveyor line and the second conveyor line, realizing a series of automated operations such as liquid filling in large bottles and small bottles, automatic insertion and pressing of guide tubes, and automatic feeding and tightening of bottle caps, thereby greatly improving production efficiency;

[0049] (3) A large and small bottle combination mechanism is set at the end of the first conveyor line and the second conveyor line. The first conveying mechanism is used to convey a group of large bottles on the first conveyor line to the carrier in the large and small bottle combination mechanism. At the same time, the second conveying mechanism is used to convey a group of small bottles of the same number on the second conveyor line to the same carrier. A large bottle and a small bottle are placed in each receiving slot in the carrier. The locking surfaces of the large bottle and the small bottle are relatively distributed. Then, the small bottle is pushed by the combined pushing module to assemble the large bottle and the small bottle together, thereby realizing the combined operation of the large and small bottles and meeting the process requirements.

Brief Description of the Drawings

[0050] Figure 1 It is a schematic diagram of a top view of the structure of an embodiment of the present invention;

[0051] Figure 2 It is a schematic diagram of the top view of the large bottle and small bottle feeding units in the embodiment of the present invention;

[0052] Figure 3 This is a schematic diagram of the structure of the movable end of a multi-axis robot in an embodiment of the present invention;

[0053] Figure 4 It is a structural schematic diagram of a bottle transfer mechanism in an embodiment of the present invention;

[0054] Figure 5 Schematic diagram of the top view of the first and second filling units in an embodiment of the present invention;

[0055] Figure 6 It is a structural schematic diagram of a filling mechanism in an embodiment of the present invention;

[0056] Figure 7 It is a structural schematic diagram of a flow guide tube assembly mechanism in an embodiment of the present invention;

[0057] Figure 8It is a partial structural schematic diagram of the guide tube assembly mechanism in an embodiment of the present invention;

[0058] Fig. 9 It is a structural schematic diagram of the insertion and handling module in an embodiment of the present invention;

[0059] Fig.10 It is a structural schematic diagram of the guide tube press-fitting mechanism in an embodiment of the present invention;

[0060] Fig.11 Schematic diagram of the top view of the first and second rotating cover units in an embodiment of the present invention;

[0061] Fig.12 It is a structural schematic diagram of the bottle cap feeding and loading mechanism in an embodiment of the present invention;

[0062] Fig.13 It is a structural schematic diagram of a bottle cap tightening mechanism and a bottle cap height detection mechanism in an embodiment of the present invention;

[0063] Fig.14 This is a schematic diagram of the structure of a defective product rejection mechanism in an embodiment of the present invention;

[0064] Fig.15 It is a schematic diagram of a top view of the structure of the end of the conveyor line in an embodiment of the present invention;

[0065] Fig.16 It is a structural schematic diagram of the large and small bottle combination mechanism in an embodiment of the present invention;

[0066] Fig.17 It is a partial structural diagram of the second carrier and the lifting drive structure in an embodiment of the present invention;

[0067] Fig.18 It is a structural schematic diagram of the first transport mechanism in an embodiment of the present invention;

[0068] Fig.19 It is a structural schematic diagram of the third transport mechanism in an embodiment of the present invention;

[0069] The numbers in the figure represent:

[0070] 100-large and small bottles automatic filling combined production line;

[0071] 200-large bottle; 300-small bottle; 400-large and small bottles; 500-flow guide tube; 600-bottle cap;

[0072] 1-first conveyor line, 11-outward conveyor line, 12-return conveyor line, 13-propelling mechanism, 14-bottle holder;

[0073] 2- Second conveyor line;

[0074] 3-large bottle feeding unit, 31-bottle feeding mechanism, 311-bottle feeding conveyor line, 32-first camera, 33-fourth conveying mechanism, 331-multi-axis robot, 332-conveying module, 3321-first support plate, 3322-first clamping jaw assembly, 333-posture adjustment module, 3331-first motor, 3332-rotating shaft, 3333-mounting block, 3334-sucking nozzle, 34-fifth conveying mechanism, 35-bottle transfer mechanism, 351-first cylinder, 352-second support plate, 353-first carrier, 3531-bottle receiving groove;

[0075] 4-first filling unit, 41-filling mechanism, 411-second motor, 412-third support plate, 413-filling head, 42-guiding tube assembly mechanism, 421-guiding tube feeding module, 4211-output flow channel, 422-first offset receiving module, 4221-receiving plate, 4222-third motor, 423-insertion handling module, 4231-first XYZ axis driving module, 4232-fourth support plate, 4233 - second clamping jaw assembly, 4234 - second camera, 4235 - fourth motor, 43 - visual inspection mechanism, 44 - guide tube pressing mechanism, 441 - second cylinder, 442 - pressure rod, 45 - positioning module, 451 - blocking assembly, 452 - front positioning assembly, 4521 - fourth cylinder, 4522 - front pressing plate, 453 - rear positioning assembly, 4531 - third cylinder, 4532 - limit block, 4533 - limit slot;

[0076] 5-first capping unit, 51-bottle cap feeding and loading mechanism, 511-bottle cap feeding module, 512-second offset receiving module, 513-bottle cap pre-tightening and handling module, 5131-first YZ axis driving module, 5132-fifth support plate, 5133-pre-tightening head, 5134-fifth motor, 52-bottle cap tightening mechanism, 521-sixth motor, 522-sixth support plate, 523-tightening module, 5231-fifth cylinder, 5232-tightening drive, 5233-bottle cap clamping jaw assembly, 53-bottle cap height detection mechanism, 531-sixth cylinder, 532-seventh support plate, 533-displacement sensor, 534-detection block, 54-defective product rejection mechanism, 541-recovery tray, 542-second XYZ axis driving module, 543-third clamping jaw assembly;

[0077] 6-small bottle feeding unit; 7-second filling unit; 8-second capping unit;

[0078] 9-large and small bottle combination mechanism, 91-second carrier, 911-second supporting bottom plate, 912-accommodating groove, 913-enclosing plate, 914-rear blocking block, 92-third carrier, 93-transfer driving module, 931-seventh cylinder, 932-first slide rail, 933-second slide rail, 934-synchronous belt, 94-combined pushing module, 941-eighth cylinder, 942-pushing plate, 95-lifting driving structure, 951-eighth supporting plate, 952-bracket, 953-guide plate, 9531-lifting guide slide groove, 954-first transmission roller;

[0079] 10-first transport mechanism, 101-third XYZ axis drive module, 102-fourth clamping jaw assembly; 20-second transport mechanism; 30-unloading conveyor line;

[0080] 40-third transport mechanism, 401-second YZ axis drive module, 402-ninth support plate, 403-rotating clamping module, 4031-tenth support plate, 4032-seventh motor, 4033-fifth clamping jaw assembly, 4034-second transmission roller, 404-spacing adjustment module, 4041-ninth cylinder, 4042-spacing adjustment plate, 40421-horizontal guide slot. [Specific implementation method]

[0081] Embodiment 1:

[0082] Please refer to Figure 1-Figure 19 The present embodiment is a large and small bottle automatic filling combined production line 100, which includes a first conveyor line 4 and a second conveyor line 2 arranged in parallel; a large bottle feeding unit 3, a first filling unit 4 and a first screw-capping unit 5 arranged in sequence along the first conveyor line 1; a small bottle feeding unit 6, a second filling unit 7 and a second screw-capping unit 8 arranged in sequence along the second conveyor line 2; a large and small bottle combination mechanism 9 arranged at the common end of the first conveyor line 1 and the second conveyor line 2; a first conveying mechanism 10 for conveying the large bottles 200 at the end of the first conveyor line 1 to the large and small bottle combination mechanism 9; a second conveying mechanism 20 for conveying the small bottles 300 at the end of the second conveyor line 2 to the large and small bottle combination mechanism 9; a material unloading conveyor line 30 located beside the large and small bottle combination mechanism 9; and a third conveying mechanism 40 for taking out the combined large and small bottles 400 from the large and small bottle combination mechanism 9 and placing them on the unloading conveyor line 30.

[0083] In this embodiment, the first conveyor line 1 and the second conveyor line 2 are both circulating conveyor lines, and include an outbound conveyor line 11 and a return conveyor line 12, and a pushing mechanism 13 arranged at both ends of the conveyor lines. The first conveyor line 1 and the second conveyor line 2 both circulate bottle trays 14, and the bottle trays 14 are provided with a receiving groove (not marked in the figure) that is shaped like a large bottle 200 or a small bottle 300. The large bottle 200 or the small bottle 300 can be placed in the bottle tray 14 to maintain a stable position and will not tip over. The pushing mechanism 13 at the end of the outbound conveyor line 11 is used to push the empty bottle tray 14 at the end of the outbound conveyor line 11 to the return conveyor line 12, and the pushing mechanism 13 at the end of the return conveyor line 12 is used to push the empty bottle tray 14 on the return conveyor line 12 to the outbound conveyor line 11, so as to realize the recycling of the bottle tray 14.

[0084] The large bottle feeding unit 3 and the small bottle feeding unit 6 have the same structural principle and are relatively distributed outside the first conveyor line 1 and the second conveyor line 2. The large bottle feeding unit 3 and the small bottle feeding unit 6 both include a bottle feeding mechanism 31 having a bottle feeding conveyor line 311, a first camera 32, a fourth conveying mechanism 33 and a fifth conveying mechanism 34 sequentially arranged along the bottle feeding conveyor line 311, and a bottle transfer mechanism 35 located above the first conveyor line 1 or the second conveyor line 2 and moving back and forth between the fourth conveying mechanism 33 and the fifth conveying mechanism 34. The bottle feeding mechanism 31 outputs a row of bottles with no order and no fixed posture on the bottle feeding conveyor line 311, the first camera 32 identifies the position and posture of each bottle on the bottle feeding conveyor line 311, and obtains the posture information of each bottle; the bottle transfer mechanism 35 is initially located at the material receiving position waiting for receiving the material; the fourth conveying mechanism 33 adjusts the bottles on the bottle feeding conveyor line 311 to a standing state according to the posture information of each bottle and conveys them to the bottle transfer mechanism 35, the bottle transfer mechanism 35 carries a group of bottles with a set number and moves them to the material picking position, the fifth conveying mechanism 34 takes the group of bottles from the bottle transfer mechanism 35, and then places them in the bottle holder 14 of the first conveyor line 1 or the second conveyor line 2, completing the feeding and loading of the bottles.

[0085] The fourth conveying mechanism 33 and the fifth conveying mechanism 34 both include a multi-axis robot 331 and a conveying module 332 disposed at the movable end of the multi-axis robot 331. The conveying module 332 includes a first support plate 3321 disposed at the movable end of the multi-axis robot 331 and a plurality of first clamping jaw assemblies 3322 arranged on the first support plate 3321. The first clamping jaw assembly 3322 includes a clamping jaw cylinder and a clamping jaw driven by the clamping jaw cylinder to open or clamp. Multiple bottles can be conveyed at one time by using multiple first clamping jaw assemblies 3322.

[0086] The distance between two adjacent first clamping jaw assemblies 3322 in the fifth conveying mechanism 34 corresponds to the distance between two adjacent bottles on the first conveying line 1 and the second conveying line 2 .

[0087] In order to adjust the standing posture of the bottles on the bottle feeding conveyor line 311, the fourth conveying mechanism 33 also includes a posture adjustment module 333. The posture adjustment module 333 includes a first motor 3331 fixed on the first support plate 3321, a rotating shaft 3332 driven by the first motor 3331 to rotate around a horizontal axis, a mounting block 3333 fixed at the end of the rotating shaft 3332, and a suction nozzle 3334 fixed on the mounting block 3333. The posture adjustment module 333 can realize the transformation of the bottle from a lying state to a standing state, or adjust the bottle in the standing state to stand in a uniformly set placement direction according to the bottle posture information recognized by the first camera 32. Since the large bottle 200 and the small bottle 300 have a matching buckling surface, the large bottle 200 and the small bottle 300 need to be placed on the first conveyor line 1 and the second conveyor line 2 in a relative form with the buckling surface. This embodiment can meet the above requirements by setting the posture adjustment module 333.

[0088] If the bottle is in a lying state, the suction nozzle 3334 is in a downward suction state, and the first motor 3331 drives the rotating shaft 3332 to rotate clockwise or counterclockwise according to the bottle posture information recognized by the first camera 32, so that the bottle can be transformed from a lying state to a standing state. If the bottle is in a standing state, the suction nozzle 3334 sucks the bottle in a horizontal suction state, and then the multi-axis robot 331 is used to adjust the bottle so that the above-mentioned buckling surface faces the set direction for placement.

[0089] The bottle transfer mechanism 35 includes two submodules, which are alternately switched between the material receiving position and the material taking position to achieve gapless transfer of bottles. The submodules include a first cylinder 351, a second support plate 352 driven by the first cylinder 351 to move parallel to the conveying direction of the bottle feeding conveyor line 311, and a first carrier 353 fixed on the second support plate 352. The first carrier 353 is provided with a plurality of bottle receiving grooves 3531.

[0090] The first filling unit 4 and the second filling unit 7 have the same structure and both include a filling mechanism 41, a guide tube assembly mechanism 42, a visual inspection mechanism 43 and a guide tube pressing mechanism 44 which are sequentially arranged along the conveying direction of the first conveyor line 1 or the second conveyor line 2; the bottle holder 14 carries the bottle and moves to the first filling unit 4 and the second filling unit 7, firstly, the bottle is filled with liquid through the filling mechanism 41, and then it moves to the guide tube assembly mechanism 42 to feed, load and assemble the guide tube 500, and insert the guide tube 500 into the bottle along the bottle mouth; then it moves to the visual inspection mechanism 43 to carry out visual inspection after the guide tube is inserted, and detect whether the guide tube 500 is correctly inserted and whether there is any missing installation; finally, it moves to the guide tube pressing mechanism 44, and uses the guide tube pressing mechanism 44 to press the guide tube 500 into place.

[0091] The filling mechanism 41 includes a second motor 411, a third support plate 412 driven by the second motor 411 to move up and down, a plurality of filling heads 413 arranged on the third support plate 412, and a filling system (not shown) connected to the filling heads 413 for filling control. Multiple filling heads 413 can fill multiple bottles at the same time to improve filling efficiency.

[0092] The guide tube assembly mechanism 42 includes a guide tube feeding module 421, a first offset receiving module 422 connected to the output end of the guide tube feeding module 421, and an insertion and transporting module 423 for grabbing and inserting the guide tube on the first offset receiving module 422 into a bottle.

[0093] In this embodiment, the guide tube feeding module 421 has two output flow channels 4211. In other embodiments, one or more output flow channels 4211 may be provided. The first offset receiving module 422 includes a receiving plate 4221 connected to the output flow channel 4211 and a third motor 4222 driving the receiving plate 4221 to move perpendicular to the output flow channel 4211. The receiving plate 4221 is provided with a plurality of receiving grooves (not marked in the figure) at equal intervals along the moving direction of the receiving plate 4221. Through the setting of the third motor 4222, a group of material receiving troughs on the material receiving plate 4221 can be driven to first connect with the output flow channel 4211 to receive the first group of guide tubes, and then the material receiving plate 4221 can be driven to move in an offset manner so that the next group of material receiving troughs can connect with the output flow channel 4211 to receive the next group of guide tubes, thereby realizing the connection of multiple groups of guide tubes; on the other hand, through the setting of the third motor 4222, the material receiving plate 4221 can also be driven to move to a state where the material receiving trough and the output flow channel 4211 are offset, thereby blocking the guide tubes in the output flow channel 4211 from continuing to output forward.

[0094] The insertion and handling module 423 includes a first XYZ-axis driving module 4231 , a fourth support plate 4232 disposed at a movable end of the first XYZ-axis driving module 4231 , and a plurality of second clamping jaw assemblies 4233 arranged on the fourth support plate 4232 and used for clamping the guide tube 500 .

[0095] Since the guide tube 500 has angle requirements when being inserted into the bottle, the insertion and handling module 423 also includes a second camera 4234 arranged on the fourth support plate 4232 and detecting the direction of each guide tube 500 in the receiving plate 4221, and a fourth motor 4235 driving the second clamping jaw assembly 4233 to clamp the guide tube 500 for angle adjustment.

[0096] The guide tube 500 is output from the output flow channel 4211 in a vertical state, and then enters the receiving slot of the receiving plate 4221. The second camera 4234 takes a picture of the guide tube 500 in the receiving slot to identify the initial angle information of the guide tube 500. Then the second clamping jaw assembly 4233 clamps a group of guide tubes 500. Each second clamping jaw assembly 4233 is configured with a fourth motor 4235. The fourth motor 4235 drives the guide tube to rotate and adjusts the guide tube 500 to the set insertion angle according to the initial angle information of the guide tube 500 and the set insertion angle information; and then the guide tube is inserted into the bottle to realize the directional insertion of the guide tube.

[0097] The guide tube pressing mechanism 44 includes a second cylinder 441 and a pressing rod 442 driven by the second cylinder 441 to move up and down. The guide tube pressing mechanism 44 can be provided with multiple groups, corresponding to the number of the second clamping jaw assembly 4233 and the filling head 413, to simultaneously complete the filling of multiple bottles, the insertion and pressing of the guide tubes.

[0098] Several positioning modules 45 for fixing and limiting the position of bottles are arranged at the first conveyor line 1 and the second conveyor line 2 corresponding to each operating station. The positioning module 45 includes a blocking component 451 for blocking a group of bottles containing a set number from continuing to move forward, and a front positioning component 452 and a rear positioning component 453 for pressing the bottles forward and backward. The rear positioning component 453 includes a third cylinder 4531 and a limiting block 4532 driven by the third cylinder 4531 to move forward and backward, and the limiting block 4532 is provided with several limiting grooves 4533 with openings facing forward, and the left and right side positions and the rear side position of the bottle are limited by the limiting grooves 4533. The front positioning component 452 includes a fourth cylinder 4521 and a front pressing plate 4522 driven by the fourth cylinder 4521 to move forward and backward and press the bottle backward in the limiting groove 4533.

[0099] The first capping unit 5 and the second capping unit 8 have the same structure and both include a bottle cap feeding mechanism 51 , a bottle cap tightening mechanism 52 , a bottle cap height detecting mechanism 53 and a defective product rejecting mechanism 54 which are sequentially arranged along the first conveyor line 1 or the second conveyor line 2 . The bottle assembled with the guide tube moves to the bottle cap feeding and loading mechanism 51 along the first conveyor line 1 or the second conveyor line 2. The bottle cap feeding and loading mechanism 51 realizes automatic feeding, transportation and pre-tightening of the bottle cap 600, so that the thread of the bottle cap and the outer periphery of the bottle mouth is pre-tightened to a certain depth, so that the bottle cap has a certain bite force on the bottle to prevent it from falling off when moving to the next workstation; then it moves to the bottle cap tightening mechanism 52, and the bottle cap 600 is rotated and tightened to a set degree by the bottle cap tightening mechanism 52; then it moves to the bottle cap height detection mechanism 53, and the bottle cap height detection mechanism 53 is used to detect the bottle cap height on the bottle to ensure that the bottle cap is tightened in place; finally, the bottle with the bottle cap not tightened in place is rejected by the defective product rejection mechanism 54 to ensure the quality of the subsequent output finished product.

[0100] The bottle cap feeding and loading mechanism 51 comprises a bottle cap feeding module 511, a second offset receiving module 512 docking with the output end of the bottle cap feeding module 511, and a bottle cap pre-tightening transport module 513 grabbing the bottle cap 600 received in the second offset receiving module 512 and pre-tightening it onto the bottle.

[0101] The structure of the second offset material receiving module 512 is the same as that of the first offset material receiving module 422, and the only difference is that the shape of the material receiving groove on the material receiving plate 4221 is different. The material receiving groove in the first offset material receiving module 422 is used to receive the guide tube 500, while the material receiving groove in the second offset material receiving module 512 is used to receive the bottle cap 600.

[0102] The bottle cap pre-tightening and transporting module 513 includes a first YZ-axis driving module 5131, a fifth supporting plate 5132 disposed at the movable end of the first YZ-axis driving module 5131, a plurality of pre-tightening heads 5133 rotatably disposed on the fifth supporting plate 5132, and a fifth motor 5134 fixed on the fifth supporting plate 5132 and driving the pre-tightening heads 5133 to rotate. The fifth motor 5134 drives the pre-tightening heads 5133 to rotate, so that the bottle cap 600 is slightly buckled on the bottle to achieve the initial positioning of the pre-tightening.

[0103] The bottle cap tightening mechanism 52 includes a sixth motor 521, a sixth support plate 522 driven by the sixth motor 521 to move up and down, and a plurality of tightening modules 523 fixed on the sixth support plate 522. The tightening modules 523 include a fifth cylinder 5231 fixed on the sixth support plate 522, a screwing driving member 5232 driven by the fifth cylinder 5231 to move up and down, and a bottle cap clamping claw assembly 5233 arranged at the movable end of the screwing driving member 5232. The screwing driving member 5232 can adopt an existing mechanism for tightening bottle caps on the market, and realizes tightening by torque control.

[0104] The above-mentioned positioning modules 45 are correspondingly arranged at the bottle cap feeding and loading mechanism 51 and the bottle cap tightening mechanism 52 to fix the positions of the bottles on the first conveyor line 1 and the second conveyor line 2 .

[0105] The bottle cap height detection mechanism 53 includes a sixth cylinder 531, a seventh support plate 532 driven by the sixth cylinder 531 to move up and down, a plurality of displacement sensors 533 fixedly arranged on the seventh support plate 532, and a detection block 534 arranged at the sensing end of the displacement sensor 533. The detection block 534 moves downward to contact the bottle cap on the bottle. If the tightening height of the bottle cap meets the requirements, the signal data collected by the displacement sensor 533 is within the allowable range. If the bottle cap is not tightened in place, the detection block 534 cannot be lowered to the set height. At this time, the signal collected by the displacement sensor 533 shows abnormality, and it is determined that the bottle cap is not tightened in place.

[0106] The defective product rejection mechanism 54 includes a recovery tray 541, a second XYZ axis driving module 542 located above the recovery tray 541, and a third clamping jaw assembly 543 arranged at the movable end of the second XYZ axis driving module 542. The second XYZ axis driving module 542 takes the bottles whose bottle caps are not tightened in place from the first conveyor line 1 and the second conveyor line 2 according to the detection result of the bottle cap height detection mechanism 53, and then puts them into the recovery tray 541, and then manually tightens the bottle caps in place again.

[0107] The large and small bottle combination mechanism 9 includes a second carrier 91 and a third carrier 92 that are alternately transferred between the material receiving station and the combination station, a transfer drive module 93 that drives the second carrier 91 and the third carrier 92 to transfer positions, and a combination pushing module 94 arranged at the combination station.

[0108] The second carrier 91 and the third carrier 92 both include a second supporting base plate 911 and a receiving groove 912 arranged side by side on the second supporting base plate 911. The left and right sides of the receiving groove 912 are enclosed and limited by a surrounding plate 913. A rear blocking block 914 for limiting the rear position of the bottle is provided on the rear side of the receiving groove 912. The front side of the receiving groove 912 is in an open form so that the combined pushing module 94 can extend into it.

[0109] Since the second carrier 91 and the third carrier 92 need to appear alternately at the material receiving station and the assembly station, both need to be horizontally transferred between the above two stations. Therefore, mutual blocking and interference will inevitably be formed in height during the transfer process. In order to solve this problem, the present embodiment designs a lifting drive structure 95 below the second carrier 91, and realizes the lifting movement of the second carrier 91 by horizontal movement, so as to avoid the height misalignment with the third carrier 92 when they meet. Specifically, the lifting drive structure 95 includes an eighth support plate 951 driven by the transfer drive module 93 to move between the material receiving station and the assembly station, a bracket 952 movably arranged on the eighth support plate 951, and a guide plate 953 extending along the moving direction of the second carrier 91, and a lifting guide slot 9531 with a height difference is arranged on the guide plate 953, and a first transmission roller 954 extending into the lifting guide slot 9531 is arranged on the bracket 952, and the second carrier 91 is fixedly arranged on the top of the bracket 952. When the transfer drive module 93 drives the eighth support plate 951 to move horizontally, the bracket 952 is driven to move up and down on the eighth support plate 951 with the cooperation of the lifting guide slot 9531 and the first transmission roller 954. By designing the shape contour of the lifting guide slot 9531, the second carrier 91 located on the top of the bracket 952 can be at a set height position at the material receiving station and the assembly station, and at the same time, it can drop to a low position to avoid height misalignment when intersecting with the third carrier 92.

[0110] The transfer drive module 93 includes a seventh cylinder 931 for driving the second support base plate 911 in the third carrier 92 to move horizontally, a pair of first slide rails 932 and a pair of second slide rails 933 arranged in parallel and distributed up and down, and a synchronous belt 934 arranged in parallel beside the first slide rail 932 and circulating along the extension direction of the first slide rail 932. The second support base plate 911 in the third carrier 92 is slidably arranged on the first slide rail 932 and fixedly connected to the upper belt body of the synchronous belt 934; the eighth support plate 951 is slidably arranged on the second slide rail 933 and fixedly connected to the lower belt body of the synchronous belt 934. When the seventh cylinder 931 drives the third carrier 92 to move horizontally, it drives the lifting drive structure 95 and the second carrier 91 to move horizontally in the opposite direction under the transmission of the synchronous belt 934, so that the second carrier 91 and the third carrier 92 appear alternately at the material receiving station and the assembly station.

[0111] The combined pushing module 94 is arranged at the front side of the combined station, and is provided with several groups, and each group corresponds to the position of the receiving groove 912 on the second carrier 91 and the third carrier 92, and includes an eighth cylinder 941 and a pushing plate 942 for pushing the small bottle 300 and the large bottle 200 together to form a combined large and small bottle 400. The pushing plate 942 extends from the front opening of the receiving groove 912, pushes the small bottle 300, and realizes the combined connection of the large and small bottles through the convex point groove structure on the joint surface with the large bottle 200.

[0112] The first transport mechanism 10 and the second transport mechanism 20 have the same structure and both include a third XYZ axis driving module 101 and a plurality of fourth gripper assemblies 102 disposed at the movable end of the third XYZ axis driving module 101. By providing a plurality of fourth gripper assemblies 102, a plurality of large bottles and small bottles can be simultaneously grabbed from the first conveyor line 1 or the second conveyor line 2 to the carrier of the large and small bottle combination mechanism 9.

[0113] In this embodiment, after the large and small bottles are combined together, their long sides are distributed along the Y direction. In order to allow the large and small bottles 400 to be better transported on the unloading conveyor line 30, it is necessary to adjust them to the short side in front, that is, the short side is distributed along the Y direction, and the large and small bottles 400 are horizontally rotated 90 degrees. In order to perform labeling operations on the periphery of the bottles later, it is necessary to adjust the large and small bottles 400 to a posture where the large bottle is in front and the small bottle is in the back. Therefore, this embodiment optimizes the design of the third transport mechanism 40. Specifically, the third transport mechanism 40 includes a second YZ-axis driving module 401, a ninth support plate 402 arranged at the movable end of the second YZ-axis driving module 401, a plurality of rotating clamping modules 403 horizontally slidably arranged on the ninth support plate 402, and a spacing adjustment module 404 fixed on the ninth support plate 402 and adjusting the spacing between two adjacent rotating clamping modules 403. The rotating clamping module 403 is used to clamp the large and small bottles 400 and adjust the horizontal angle, and adjust the large and small bottles 400 to the state where the large bottles are in front and the small bottles are in the back and placed on the unloading conveyor line 30. Since the spacing between the large bottles 200 on the first conveyor line 1 and the spacing between the small bottles 300 on the second conveyor line 2 are consistent and small; after the large and small bottles are combined, the spacing between the two adjacent large and small bottles remains unchanged and small, and the spacing is not enough to support the direction adjustment of the large and small bottles 400. Therefore, the spacing between the rotating clamping modules 403 is adjusted by the spacing adjustment module 404, thereby increasing the spacing between the two adjacent large and small bottles, so that there is enough space for the direction adjustment of the large and small bottles.

[0114] The rotating clamping module 403 includes a tenth supporting plate 4031 horizontally slidably disposed on the ninth supporting plate 402 , a seventh motor 4032 fixed on the tenth supporting plate 4031 , and a fifth clamping jaw assembly 4033 driven by the seventh motor 4032 to rotate around the Z axis.

[0115] The spacing adjustment module 404 includes a ninth cylinder 4041 fixed on the ninth support plate 402 and a spacing adjustment plate 4042 driven by the ninth cylinder 4041 to move up and down and located above the rotating clamping module 403. The spacing adjustment plate 4042 is provided with a plurality of horizontal guide slots 40421. The tenth support plate 4031 is provided with a second transmission roller 4034 matched with the horizontal guide slots 40421. The horizontal guide slots 40421 are a plurality of oblique strip grooves with gradually decreasing spacing from top to bottom. When the second transmission roller 4034 is at the upper end of the horizontal guide slots 40421, the distance between two adjacent rotating clamping modules 403 is the largest. When the second transmission roller 4034 is at the lower end of the horizontal guide slots 40421, the distance between two adjacent rotating clamping modules 403 is the smallest. The spacing adjustment plate 4042 is driven up and down by the ninth cylinder 4041 to adjust the spacing of the rotating clamping module 403.

[0116] This embodiment also provides a combined production process for automatic filling of large and small bottles, which includes the following steps:

[0117] S1, loading of large bottles and small bottles: the bottle feeding mechanism 31 automatically outputs bottles, and the first camera 32 identifies the position information of each bottle, and the fourth conveying mechanism 33 is used to adjust the bottle to a standing state, and the surface of one side with a convex column or groove structure is placed in a set direction, and then placed in the bottle transfer mechanism 35, and then the fifth conveying mechanism 34 is used to take the bottle with adjusted posture and angle out of the bottle transfer mechanism 35 and transport it to the first conveyor line 1 and the second conveyor line 2, and place it in the bottle holder 14, completing the loading of large bottles 200 and small bottles 300;

[0118] S2, filling of large bottles and small bottles and assembly of guide tubes: large bottles 200 and small bottles 300 are transported by the first conveyor line 1 and the second conveyor line 2 and moved to the first filling unit 4 and the second filling unit 7 respectively, and a group of bottles are filled with liquid by the filling mechanism 41; then the guide tube 500 is automatically fed, loaded, and inserted into the bottle after angle adjustment by the guide tube assembly mechanism 42; after being inspected by the visual inspection mechanism 43 and found to be correct, the guide tube 500 is pressed into place by the guide tube pressing mechanism 44;

[0119] S3, screwing caps on large bottles and small bottles: large bottles 200 and small bottles 300 are transported by the first conveyor line 1 and the second conveyor line 2 and moved to the first screwing cap unit 5 and the second screwing cap unit 8 respectively, and the bottle cap feeding and loading mechanism 51 is used to complete the feeding and pre-tightening of the bottle cap 600; then the bottle cap tightening mechanism 52 tightens the bottle cap 600 into place; then the bottle cap height detection mechanism 53 is used to complete the detection of the tightening height of the bottle cap, and the defective product rejection mechanism 54 rejects the bottles with unqualified caps;

[0120] S4, combination of large and small bottles: the first transport mechanism 10 and the second transport mechanism 20 respectively take out a group of large bottles 200 from the first conveyor line 1 and a group of small bottles 300 from the second conveyor line 2 and place them in the second carrier 91 or the third carrier 92 in the large and small bottle combination mechanism 9, and the large bottles 200 and the small bottles 300 are placed opposite to each other on one side surface, and then moved to the combination station, and the large bottles and small bottles in the second carrier 91 or the third carrier 92 are squeezed together by the combined pushing module 94, and the large bottles and small bottles are combined by the convex column and groove structure to form large and small bottles 400; the empty bottle trays 14 on the first conveyor line 1 and the second conveyor line 2 are circulated back to the large bottle feeding unit 3 and the small bottle feeding unit 6 for circulated material collection;

[0121] S5, unloading: the third transport mechanism 40 takes out a group of large and small bottles 400 from the large and small bottle combination mechanism 9 and places them on the unloading conveyor line 30 to realize unloading.

[0122] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A combined automatic filling production line for large and small bottles, characterized by: It includes a first conveyor line and a second conveyor line arranged in parallel; a large bottle feeding unit, a first filling unit and a first capping unit arranged in sequence along the first conveyor line; a small bottle feeding unit, a second filling unit and a second capping unit arranged in sequence along the second conveyor line; a large and small bottle combination mechanism arranged at the common end of the first conveyor line and the second conveyor line; a first conveying mechanism for conveying large bottles at the end of the first conveyor line to the large and small bottle combination mechanism; a second conveying mechanism for conveying small bottles at the end of the second conveyor line to the large and small bottle combination mechanism; a material unloading conveyor line located beside the large and small bottle combination mechanism; and a third conveying mechanism for taking out the combined large and small bottles from the large and small bottle combination mechanism and placing them on the unloading conveyor line.

2. The large and small bottle automatic filling combined production line as claimed in claim 1 is characterized by: The first conveyor line and the second conveyor line are both circulating conveyor lines; the first conveyor line and the second conveyor line both convey bottle trays, and the bottle trays are provided with accommodating grooves that imitate the shapes of large bottles or small bottles; a number of positioning modules for fixing and limiting the positions of bottles are provided at the first conveyor line and the second conveyor line corresponding to each operating station; the positioning module includes a blocking component for blocking a group of bottles containing a set number from continuing to move forward, and a front positioning component and a rear positioning component for pressing the bottles front and back.

3. The large and small bottle automatic filling combined production line as claimed in claim 1 is characterized by: The large bottle feeding unit and the small bottle feeding unit both include a bottle feeding mechanism having a bottle feeding conveyor line, a first camera, a fourth conveying mechanism and a fifth conveying mechanism sequentially arranged along the bottle feeding conveyor line, and a bottle transferring mechanism located above the first conveyor line or the second conveyor line and moving back and forth between the fourth conveying mechanism and the fifth conveying mechanism; the fourth conveying mechanism and the fifth conveying mechanism both include a multi-axis robot and a conveying module arranged at the active end of the multi-axis robot; the conveying module includes a first support plate arranged at the active end of the multi-axis robot and a plurality of first clamping jaw assemblies arranged on the first support plate.

4. The large and small bottle automatic filling combined production line as claimed in claim 3 is characterized by: The fourth conveying mechanism also includes a posture adjustment module that adjusts the bottle to a standing posture and stands in a set direction according to the bottle posture information recognized by the first camera; the posture adjustment module includes a first motor fixed on the first support plate, a rotating shaft driven by the first motor to rotate around a horizontal axis, a mounting block fixed at the end of the rotating shaft, and a suction nozzle fixed on the mounting block.

5. The large and small bottle automatic filling combined production line as claimed in claim 3 is characterized by: The bottle transfer mechanism comprises a first cylinder, a second support plate driven by the first cylinder to move parallel to the conveying direction of the bottle feeding conveyor line, and a first carrier fixed on the second support plate; the first carrier is provided with a plurality of bottle receiving grooves.

6. The large and small bottle automatic filling combined production line as claimed in claim 1 is characterized by: The first filling unit and the second filling unit both include a filling mechanism, a guide tube assembly mechanism, a visual inspection mechanism, and a guide tube pressing mechanism, which are sequentially arranged along the conveying direction of the first conveying line or the second conveying line; The filling mechanism includes a second motor, a third support plate driven by the second motor to move up and down, a plurality of filling heads arranged on the third support plate, and a filling system connected to the filling head for filling control; The guide tube assembly mechanism includes a guide tube feeding module, a first offset receiving module connected to the output end of the guide tube feeding module, and an insertion and transporting module for grabbing and inserting the guide tube on the first offset receiving module into the bottle; The visual inspection mechanism detects whether there is a flow guide tube inserted in the bottle; The guide tube press-fitting mechanism is provided in several groups, and each group includes a second cylinder and a press rod driven by the second cylinder to move up and down.

7. The large and small bottle automatic filling combined production line as claimed in claim 6 is characterized by: The insertion and handling module includes a first XYZ-axis driving module, a fourth support plate arranged at the movable end of the first XYZ-axis driving module, a plurality of second clamping jaw assemblies arranged on the fourth support plate and used to clamp the guide tube, a second camera arranged on the fourth support plate and used to detect the direction of each guide tube in the first offset material receiving module, and a fourth motor driving the second clamping jaw assembly to clamp the guide tube for angle adjustment.

8. The large and small bottle automatic filling combined production line as claimed in claim 1 is characterized by: The first capping unit and the second capping unit both include a bottle cap feeding mechanism, a bottle cap tightening mechanism, a bottle cap height detection mechanism, and a defective product rejection mechanism which are sequentially arranged along the first conveying line or the second conveying line; The bottle cap feeding and loading mechanism comprises a bottle cap feeding module, a second staggered receiving module docking with the output end of the bottle cap feeding module, and a bottle cap pre-tightening transport module for grabbing and pre-tightening the bottle caps received by the second staggered receiving module onto the bottles; The bottle cap tightening mechanism includes a sixth motor, a sixth support plate driven by the sixth motor to move up and down, and a plurality of tightening modules fixed on the sixth support plate, and the tightening modules include a fifth cylinder fixed on the sixth support plate, a screwing drive member driven by the fifth cylinder to move up and down, and a bottle cap clamping claw assembly arranged at the movable end of the screwing drive member; The bottle cap height detection mechanism comprises a sixth cylinder, a seventh support plate driven by the sixth cylinder to move up and down, a plurality of displacement sensors fixedly arranged on the seventh support plate, and a detection block arranged at the sensing end of the displacement sensor; The defective product rejection mechanism includes a recovery tray, a second XYZ-axis drive module located above the recovery tray, and a third clamping jaw assembly arranged at the movable end of the second XYZ-axis drive module.

9. The large and small bottle automatic filling combined production line as claimed in claim 8 is characterized by: The bottle cap pre-tightening and transporting module includes a first YZ-axis driving module, a fifth support plate arranged at the movable end of the first YZ-axis driving module, a plurality of pre-tightening heads rotatably arranged on the fifth support plate, and a fifth motor fixed on the fifth support plate and driving the pre-tightening heads to rotate.

10. The large and small bottle automatic filling combined production line as claimed in claim 1 is characterized by: The large and small bottle combination mechanism comprises a second carrier and a third carrier that are alternately transferred between the material receiving station and the combination station, a transfer drive module that drives the second carrier and the third carrier to transfer positions, and a combination pushing module arranged at the combination station; The second carrier and the third carrier both include a second supporting bottom plate and a receiving groove arranged side by side on the second supporting bottom plate, the left and right sides of the receiving groove are enclosed and limited by the enclosing plate, the rear side of the receiving groove is provided with a rear blocking block for limiting the rear position of the bottle, the front side of the receiving groove is in an open form, and the combined pushing module is arranged at the front side of the combined station; The combined pushing module groups are provided with several groups, and each group corresponds to the position of the receiving slots on the second carrier and the third carrier; each group of the combined pushing module groups includes an eighth cylinder and a pushing plate driven by the eighth cylinder to push the small bottle and the large bottle together to form a combined large and small bottle.

11. The large and small bottle automatic filling combined production line as claimed in claim 10, characterized in that: The large and small bottle combination mechanism also includes a lifting drive structure that drives the second carrier to descend to a low position to avoid height displacement when it intersects with the third carrier; the lifting drive structure includes an eighth support plate driven by the transfer drive module to move between the material receiving station and the combination station, a bracket movably arranged on the eighth support plate, and a guide plate extending along the moving direction of the second carrier, the guide plate is provided with a lifting guide slot with a height difference, the bracket is provided with a first transmission roller extending into the lifting guide slot, and the second carrier is fixedly arranged on the top of the bracket.

12. The large and small bottle automatic filling combined production line as claimed in claim 11, characterized in that: The transfer drive module includes a seventh cylinder that drives the second supporting base plate in the third carrier to perform horizontal movement, a pair of first slide rails and a pair of second slide rails that are arranged in parallel and distributed up and down, and a synchronous belt that is arranged in parallel beside the first slide rails and performs circular transmission along the extension direction of the first slide rails. The second supporting base plate in the third carrier is slidably arranged on the first slide rail and is fixedly connected to the upper belt body of the synchronous belt; the eighth support plate is slidably arranged on the second slide rail and is fixedly connected to the lower belt body of the synchronous belt.

13. The large and small bottle automatic filling combined production line as claimed in claim 1 is characterized by: The first transport mechanism and the second transport mechanism both include a third XYZ-axis driving module and a plurality of fourth clamping jaw assemblies disposed at the movable end of the third XYZ-axis driving module; The third transport mechanism includes a second YZ-axis driving module, a ninth support plate arranged at the movable end of the second YZ-axis driving module, a plurality of rotating clamping modules horizontally slidingly arranged on the ninth support plate, and a spacing adjustment module fixed on the ninth support plate and adjusting the spacing between two adjacent rotating clamping modules; The rotating clamping module comprises a tenth support plate horizontally slidably arranged on the ninth support plate, a seventh motor fixed on the tenth support plate, and a fifth clamping jaw assembly driven by the seventh motor to rotate around the Z axis; The spacing adjustment module includes a ninth cylinder fixed on the ninth support plate and a spacing adjustment plate driven by the ninth cylinder to move up and down and located above the rotating clamping module, a plurality of horizontal guide grooves are arranged on the spacing adjustment plate, and a second transmission roller that cooperates with the horizontal guide grooves for transmission is arranged on the tenth support plate.

14. A combined production process for automatic filling of large and small bottles, characterized by: The combined automatic filling production line for large and small bottles as claimed in claim 1 is implemented by the following steps: S1, large bottle and small bottle loading: large bottle and small bottle loading are completed through the large bottle feeding unit and the small bottle feeding unit; The large bottle feeding unit and the small bottle feeding unit include a bottle feeding mechanism, a fourth conveying mechanism for adjusting the bottles output by the bottle feeding mechanism to a standing posture and standing in a set direction, and a fifth conveying mechanism for conveying the bottles to the first conveying line or the second conveying line; The bottle feeding mechanism automatically outputs the bottles, and after the bottles are adjusted to a standing state and placed in a set direction by the fourth conveying mechanism, the bottles with adjusted postures and angles are conveyed to the first conveying line and the second conveying line by the fifth conveying mechanism; S2, filling of large bottles and small bottles and assembly of flow guide tube: filling of large bottles and small bottles and assembly of flow guide tube are completed by the first filling unit and the second filling unit; The first filling unit and the second filling unit each include a filling mechanism, a guide tube assembly mechanism, a visual inspection mechanism, and a guide tube pressing mechanism, which are sequentially arranged along the conveying direction of the first conveying line or the second conveying line; The filling mechanism is used to complete the filling of a group of bottles with liquid; the guide tube assembly mechanism is then used to complete the automatic feeding, loading, and angle adjustment of the guide tube and then insert it into the bottle; after the visual inspection mechanism has detected that the guide tube is correct, the guide tube is pressed into place by the guide tube pressing mechanism; S3, capping of large bottles and small bottles: capping of large bottles and small bottles is completed by the first capping unit and the second capping unit; The first capping unit and the second capping unit both include a bottle cap feeding mechanism, a bottle cap tightening mechanism, a bottle cap height detection mechanism, and a defective product rejection mechanism which are sequentially arranged along the first conveying line or the second conveying line; The bottle cap feeding and loading mechanism is used to complete the feeding and pre-tightening of the bottle cap; then the bottle cap is tightened into place by the bottle cap tightening mechanism; then the bottle cap tightening height is detected by the bottle cap height detection mechanism, and the bottles with unqualified bottle caps are rejected by the defective product rejection mechanism; S4, large and small bottle combination: The large and small bottle combination mechanism comprises a second carrier for carrying large bottles and small bottles, a transfer drive module for driving the second carrier to transfer positions between a material receiving station and a combination station, and a combination pushing module arranged at the combination station; The first conveying mechanism and the second conveying mechanism respectively take out a group of large bottles from the first conveying line and a group of small bottles from the second conveying line and place them in the second carrier; the large bottles and the small bottles are placed opposite to each other with their matching side surfaces, and then the large bottles and the small bottles are assembled together by using the combined pushing module to form large and small bottles; S5, unloading: the third transport mechanism takes out a group of large and small bottles from the large and small bottle combination mechanism and places them on the unloading conveyor line to realize unloading.

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