Intelligent empty box delivery and packing line

Abstract

The intelligent empty carton delivery and packing line of the present invention includes an upper empty carton roller conveyor, a lower full-carton roller conveyor below the upper empty carton roller conveyor, and several packing machines on the same side of the upper empty carton roller conveyor and the lower full-carton roller conveyor. An empty carton dispensing mechanism is provided between the upper empty carton roller conveyor and each packing machine. This invention offers advantages such as neat packing, good packing effect, high packing efficiency, and high full-carton recovery efficiency for packaged products, while avoiding increasing the space occupied by the packing line and increasing equipment costs. It not only solves the problems of complex structure, large footprint, and high production costs caused by the current market's packing production lines requiring each packing machine to be equipped with a packaging carton conveyor line, a carton opener, a packaged product conveyor line, and a full-carton product conveyor line, but also solves the problems of uneven packing, low packing efficiency, and poor packing effect caused by the current market's carton openers only being able to pack empty cars from the side.

Description

Technical Field

[0001] This invention relates to the field of delivery and packing lines, and more particularly to an intelligent empty box delivery and packing line. Background Technology

[0002] With the development of society, products need to be packaged and boxed before storage or transportation. Traditionally, products are mainly packaged and boxed manually. After the products are packaged into individual packages, they are placed into empty boxes by hand and then sealed. This method has disadvantages such as low packaging efficiency, low boxing efficiency, high labor intensity for workers, and high labor costs for enterprises. Later, some carton packing lines appeared on the market, which mainly consist of a carton conveyor line, a carton opener, a packaged product conveyor line, a carton packer, and a full-carton product conveyor line. One carton packer must be equipped with a carton conveyor line, a carton opener, a packaged product conveyor line, and a full-carton product conveyor line, resulting in problems such as complex structure, large footprint, and high production cost, which is not conducive to the development of large-scale carton packing industry. Moreover, the carton openers on the market are generally side-opening, and the carton packers also need to pack empty cars sideways. Side packing results in problems such as uneven packing, low packing efficiency, and poor packing effect. If it is necessary to adjust the empty carton opening to face upwards, additional equipment is required to adjust the orientation of the empty carton. This increases the space occupied by the carton packing line and the cost of the equipment. Furthermore, the added process of adjusting the orientation of the empty carton reduces the packing efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an intelligent empty box delivery and packing line.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: it includes an upper empty box roller conveyor, a lower full box roller conveyor below the upper empty box roller conveyor, several box packers on the same side of the upper empty box roller conveyor and the lower full box roller conveyor, an empty box distribution mechanism between the upper empty box roller conveyor and each box packer, the upper empty box roller conveyor for supplying and conveying empty boxes, each empty box distribution mechanism for allocating empty boxes to the corresponding box packer, the box packers for packing products from the empty boxes, and the lower full box roller conveyor for collecting and conveying full boxes transferred from each box packer.

[0005] The case packing machine includes a case packing frame, within which is a dual-servo feeding mechanism for receiving and grouping packaged products. A product conveyor line is located on one side of the dual-servo feeding mechanism, conveying packaged products to it. On the other side of the dual-servo feeding mechanism are a case feeding mechanism and a case positioning mechanism, which are adjacent and connected. Above the case feeding mechanism is a case pushing mechanism that receives empty cases from an empty case distribution mechanism. The case pushing mechanism then conveys the empty cases to the case positioning mechanism. At the top of the case packing frame is a case packing mechanism, and above the case positioning mechanism is a case opening mechanism for opening empty cases. The case opening mechanism opens the empty cases on the case positioning mechanism, and the case packing mechanism picks up packaged products from the dual-servo feeding mechanism and loads them into the empty cases. A transfer mechanism is located on one side of the case packing mechanism, pushing the cases filled with packaged products from the case positioning mechanism to the transfer mechanism, which then conveys the cases filled with packaged products to the lower full-case roller conveyor line.

[0006] The product conveying line includes a weighing conveyor, a rejection conveyor, and an injection conveyor, which are connected in sequence. The weighing conveyor weighs the packaged products, the rejection conveyor removes and rejects non-compliant packaged products, and the injection conveyor quickly transfers the packaged products to the dual-servo material handling mechanism.

[0007] By adopting the above technical solution, it achieves automatic feeding and conveying of empty boxes and packaged products on a single distribution line; automatic detection of the length and weight of the conveyed packaged products; automatic removal and rejection of packaged products that do not meet the requirements; automatic grouping and collection of packaged products that meet the requirements; automatic storage of empty boxes; automatic orderly supply of empty boxes according to the detected shortage status; automatic positioning of empty boxes before packing; automatic unpacking of empty boxes; automatic filling of empty boxes with packaged products; and automatic collection, conveying, unloading, and recycling of full boxes with packaged products. It not only achieves automatic opening of the box lid from the top without the need for additional structures to adjust the orientation of the empty boxes, but also automatically opens the box lid from the top of the empty box. This packaging method eliminates the need for multiple carton conveyor lines and full-carton product conveyor lines on the entire packing line, thus avoiding increased space occupation and equipment costs. It offers advantages such as neat packing, good packing effect, high packing efficiency, and high full-carton recycling efficiency. It not only solves the problems of complex structure, large footprint, and high production cost caused by the requirement that each packing machine on the market must be equipped with a carton conveyor line, a carton opener, a packaged product conveyor line, and a full-carton product conveyor line, but also solves the problems of uneven packing, low packing efficiency, and poor packing effect caused by the fact that the carton opener on the market can only pack empty cartons from the side.

[0008] Preferably, the weighing conveying mechanism includes a weighing bracket, a weighing sensor on the top surface of the upper end of the weighing bracket, a weighing conveying line on the weighing sensor, a first fixed guide plate on one side of the weighing conveying line, a first limiting guide assembly on the other side of the weighing conveying line, and a positioning adjustment rod above the weighing conveying line, on which a first photoelectric sensor and a second photoelectric sensor are mounted. The positioning adjustment rod is fixedly installed on the upper end of the weighing bracket via a photoelectric sensor bracket.

[0009] By adopting the above technical solution, when the first photoelectric sensor and the second photoelectric sensor simultaneously detect packaged products, it indicates that two or more packaged products are connected together (i.e., multiple independent packaged products are linked together without being separated into individual packaged products); when the first or second photoelectric sensor detects that the packaged product's conveying time is less than a set value, the packaged product's orientation on the weighing conveyor line does not meet the required requirements; when the weighing conveyor line conveys packaged products, the weighing sensor measures whether the weight of the product on the weighing conveyor line meets the set weight. It not only allows for the measurement of packaged products of different lengths by adjusting the distance between the first and second photoelectric sensors, but also determines whether the product meets the packing requirements by measuring the length and weight of the packaged product.

[0010] Preferably, the rejection conveying mechanism includes a rejection bracket with a rejection conveying line mounted on it. One end of the rejection conveying line has a first rotating shaft, which rotatably connects the rejection conveying line to the rejection bracket. A rejection cylinder is mounted on the rejection bracket, with its cylinder body rotatably connected to one side of the rejection bracket and its output end rotatably connected to the bottom of the rejection conveying line. A second fixed guide plate is located on one side of the rejection conveying line, and a second limiting guide assembly is located on the other side of the rejection conveying line. A first crossbar is connected to the side of the rejection bracket facing the injection conveying mechanism.

[0011] By adopting the above technical solution, the rejection conveyor line is rotatably connected to the rejection bracket via the first rotating shaft, the rejection cylinder is rotatably connected to the rejection bracket, the output end of the rejection cylinder is connected to the rejection conveyor line, and the rejection cylinder pulls the rejection conveyor line to swing downward around the first rotating shaft, so that the non-compliant packaged products are unloaded and rejected.

[0012] Preferably, the injection conveying mechanism includes a tilt adjustment frame. Two universal feet are located below one side of the tilt adjustment frame, and a clamping component is located below each universal foot. Positioning seats are located on the same side of the two clamping components. A lead screw connecting rod passes through the two positioning seats, and a locking device is provided on the positioning seats to lock the lead screw connecting rod. A first positive and negative thread connecting rod assembly is connected between each positioning seat and the other side of the tilt adjustment frame. Twisting the first positive and negative thread connecting rod assembly can adjust the tilt of the tilt adjustment frame along the conveying direction of the packaged product. A first bearing mounting plate is located on one side of the tilt adjustment frame. First guide rod bearing assemblies are located at both ends of the first bearing mounting plate. The upper ends of the guide rods of the two first guide rod bearing assemblies are connected to the first guide rod mounting plate. The tilt adjustment frame is connected to the first bearing mounting plate. An injection conveyor belt is located above the tilt adjustment frame. One end of the injection conveyor belt is hinged to the first guide rod mounting plate via a hinge. The other end of the line is connected to the first bearing mounting plate via a second positive and negative toothed connecting rod assembly. A first lead screw bearing assembly is provided through the first bearing mounting plate. The upper end of the lead screw of the first lead screw bearing assembly is rotatably connected to the first guide rod mounting plate. A first handwheel is provided at the lower end of the lead screw of the first lead screw bearing assembly. Rotating the first handwheel can raise or lower the first guide rod mounting plate to adjust the lateral tilt of the injected conveyor belt. A positioning lock is fitted on the guide rods of the two first guide rod bearing assemblies. The positioning lock is located between the first guide rod mounting plate and the first bearing mounting plate. The lead screw of the first lead screw bearing assembly moves through the middle of the positioning lock. The positioning lock locks the guide rods of the two first guide rod bearing assemblies on the first bearing mounting plate to fix the lateral tilt of the injected conveyor belt. A side-standing conveyor belt is provided on the other end of the injected conveyor belt. The side-standing conveyor belt is perpendicular to the injected conveyor belt. The injection conveying mechanism is mounted on the first crossbar of the rejection conveying mechanism via a clamping device, and the tilt adjustment frame is mounted on the clamping device via a universal foot cup, allowing the tilt adjustment frame to swing freely on the universal foot cup.

[0013] By adopting the above technical solution, the height of the injection conveyor belt relative to the tilt adjustment frame can be adjusted by turning the handwheel, and the tilting degree of the injection conveyor belt can be adjusted by turning the second positive and negative tooth connecting rod assembly. A side-standing conveyor belt is provided on the side end of the injection conveyor belt that is tilted downwards. The side-standing conveyor belt is perpendicular to the injection conveyor belt, so that the packaged product can be adjusted in the direction of product conveying with the side-standing conveyor belt as a reference and close to the side-standing conveyor belt. The downward tilting end of the injection conveyor belt is connected to the dual-servo feeding mechanism. The combination of the injection conveyor belt and the side-standing conveyor belt increases the friction with the packaged product, so that the packaged product can be quickly transferred to the dual-servo feeding mechanism to ensure that the packaged product is transferred to the dual-servo feeding mechanism in place.

[0014] Preferably, the dual-servo feeding mechanism includes a first circulation line and a second circulation line. The first circulation line includes a feeding circulation conveyor line, and a first servo motor is connected to one side of the feeding circulation conveyor line. The structure of the second circulation line is the same as that of the first circulation line, and the second circulation line is arranged opposite to the first circulation line. The second circulation line and the first circulation line convey packaged products in the same direction. A feeding support plate and several feeding dividers are sequentially provided on the surface of both the first and second circulation lines. The feeding support plate and feeding dividers on the first and second circulation lines are arranged in the same orientation. A product baffle is provided on one side of the second circulation line to block and limit the conveyed packaged products.

[0015] Specifically, the material handling support plate includes a first mounting part and a support part, which are perpendicular to each other and integrally formed. The support part extends upward obliquely to provide a support part for supporting the packaged product. The material handling divider includes a second mounting part, which extends laterally and vertically to provide a dividing part. The second mounting part and the dividing part are integrally formed.

[0016] By adopting the above technical solution, the first circulation line and the second circulation line respectively receive the packaged products from the injection conveyor in sequence, and group the packaged products. The structural design of the dual servo material handling mechanism realizes uninterrupted reception of packaged products, grouping and collecting, and preparation of materials for the boxing mechanism.

[0017] Preferably, the empty carton dispensing mechanism includes a carton dropping bracket, with a second bearing mounting plate at its upper end. Second guide rod bearing assemblies are respectively mounted on both ends of the second bearing mounting plate. One end of the guide rods of the two second guide rod bearing assemblies is connected to a carton pushing cylinder mounting plate, and the other end of the guide rods of the two second guide rod bearing assemblies is connected to the second guide rod mounting plate. A carton pushing cylinder is mounted on the carton pushing cylinder mounting plate, with its output end connected to the second bearing mounting plate. A carton pushing frame is connected to the lower end of the second bearing mounting plate. The carton pushing cylinder drives the second bearing mounting plate to move, and the second bearing mounting plate drives the carton pushing frame to push the empty carton into the empty carton. Within the upper space of the container drop support, upper and middle opening / closing mechanisms are respectively installed on both sides of the middle section of the support, from high to low. The two upper opening / closing mechanisms are arranged opposite each other, supporting and storing empty containers within the upper space of the container drop support. Similarly, two middle opening / closing mechanisms are arranged opposite each other, supporting and storing empty containers within the middle space of the container drop support. A middle-level photoelectric sensor is installed in the middle of the container drop support to detect whether there are empty containers stored in the middle space. A lower-level photoelectric sensor is installed at the lower end of the container drop support to detect whether there are empty containers stored in the lower space.

[0018] By adopting the above technical solution, when there are no empty boxes in the middle and lower spaces of the empty box distribution mechanism, the pusher cylinder picks up an empty box from the upper empty box roller conveyor. After the empty box enters the upper space of the empty box distribution mechanism, when the two upper opening and closing mechanisms release their support for the empty box, the empty box falls into the middle space. When the two middle opening and closing mechanisms release their support for the empty box, the empty box falls into the lower space and is placed on the box feeding mechanism. When the lower photoelectric sensor detects a missing box, the two middle opening and closing mechanisms release their support for the empty box, and the empty box falls into the lower space of the empty box distribution mechanism. When the photoelectric sensor detects a shortage of boxes, the two upper-level opening and closing mechanisms release their support for the empty boxes, allowing them to fall into the middle space of the empty box distribution mechanism. The two middle-level opening and closing mechanisms then support and store the empty boxes. Simultaneously, when both the middle-level and lower-level photoelectric sensors detect a shortage, indicating a critical shortage, a pusher cylinder drives a pusher frame to advance the corresponding empty box from the upper-level empty box roller conveyor into the upper space of the empty box distribution mechanism. The upper and middle-level opening and closing mechanisms then sequentially release their support for the empty boxes, allowing them to fall into the lower space of the empty box distribution mechanism, ready for the packing machine. Essentially, the system can detect a shortage of boxes based on the middle-level or lower-level photoelectric sensor, driving the pusher cylinder to retrieve empty boxes from the upper-level empty box roller conveyor. The upper and middle-level opening and closing mechanisms respectively store or release empty boxes, ensuring a continuous supply of empty boxes to the packing mechanism and guaranteeing an adequate supply.

[0019] Specifically, the upper opening and closing mechanism includes an upper opening and closing cylinder and an upper support plate. The output end of the upper opening and closing cylinder is rotatably connected to one end of the upper support plate. An upper rotating shaft frame is provided on the same end of the upper support plate. The upper rotating shaft frame has a U-shaped design. An upper opening and closing rotating shaft is provided at the upper end of the upper rotating shaft frame. Upper bearing seats are respectively fitted on both ends of the upper opening and closing rotating shaft. The upper opening and closing cylinder drives the upper support plate to rotate around the upper opening and closing rotating shaft. A roller mounting plate extends laterally from the other end of the upper support plate. One or more rollers are provided on the roller mounting plate. The cylinder body of the upper opening and closing cylinder is rotatably connected to the box dropping bracket, and the upper bearing seat is fixedly connected to the box dropping bracket.

[0020] By adopting the above technical solution, the upper opening and closing cylinders of the two upper opening and closing mechanisms respectively drive the upper pallet to swing upward relative to each other around the upper opening and closing pivot to a horizontal state. The empty box is pushed by the box pushing cylinder and moves on the rollers on the roller mounting plate, and is conveyed into the upper space position of the box dropping bracket. The two upper opening and closing mechanisms support the empty box to store the empty box. When the two upper opening and closing cylinders respectively drive the upper pallet to swing downward from the horizontal state to the vertical swing state, the two upper opening and closing mechanisms release the support of the empty box to release the empty box, so that the empty box falls into the middle space position of the box dropping bracket.

[0021] Specifically, the middle layer opening and closing mechanism includes a middle layer opening and closing cylinder and a middle layer support plate. The output end of the middle layer opening and closing cylinder is rotatably connected to one end of the middle layer support plate. A middle layer rotating shaft frame is provided on the same end of the middle layer support plate. The middle layer rotating shaft frame has a U-shaped design. A middle layer opening and closing rotating shaft is provided at the upper end of the middle layer rotating shaft frame. Middle layer bearing seats are respectively fitted at both ends of the middle layer opening and closing rotating shaft. A lateral carriage section is provided at the other end of the middle layer support plate. The carriage section has an L-shaped design. The cylinder body of the middle layer opening and closing cylinder is rotatably connected to the carriage drop support, and the middle layer bearing seat is fixedly connected to the carriage drop support.

[0022] By adopting the above technical solution, the middle-layer opening and closing cylinders of the two middle-layer opening and closing mechanisms respectively drive the middle-layer pallets to swing upward relative to each other around the middle-layer opening and closing pivot to a horizontal state, and the carrying sections of the two middle-layer pallets jointly support the empty boxes to store them. When the two middle-layer opening and closing cylinders respectively drive the middle-layer pallets to swing downward from the horizontal state to the vertical swing state, the two upper-layer opening and closing mechanisms release their support for the empty boxes to release them.

[0023] Preferably, the box feeding mechanism includes a box feeding roller line, a third limiting guide component and a third photoelectric sensor are provided on one end of the box feeding roller line, a fourth limiting guide component is provided on the other end of the box feeding roller line, a reference plate and a fourth photoelectric sensor are provided at the end of the box feeding roller line along the empty box conveying direction, and a box feeding blocker is provided below the box feeding roller line.

[0024] Preferably, the box-pushing mechanism includes a first ball screw module, a push plate is provided on one side of the sliding part of the first ball screw module, a second servo motor is provided on one end side of the first ball screw module, a first coupling is provided at the output end of the second servo motor, and the second servo motor is connected to the first ball screw module through the first coupling; the box-in roller line, the box-in stopper and the first ball screw module are all fixedly installed on the box-packing frame.

[0025] By adopting the above technical solution, the fourth photoelectric sensor detects whether there is a shortage of empty boxes. When the fourth photoelectric sensor detects a shortage of boxes, the box entry blocker releases the empty boxes. The empty boxes are transported by the box entry roller line to the bottom of the box pushing mechanism to reserve empty boxes for packaging products. When the packaging boxes filled with products are pushed to the transfer mechanism by the box positioning mechanism, the push plate of the box pushing mechanism, along with the first ball screw module and driven by the second servo motor, moves the empty boxes to the box positioning mechanism to prepare for packaging products. This realizes the orderly supply of boxes to the box positioning mechanism on demand.

[0026] Preferably, the box-opening mechanism includes a first clamping guide rod and a second clamping guide rod arranged in parallel. A first box-opening part is provided at one end of the first clamping guide rod, and a second box-opening part is provided at one end of the second clamping guide rod. The first box-opening part and the second box-opening part are staggered. A centering adjustment part is connected across the first clamping guide rod and the second clamping guide rod. A height adjustment part is provided at one end of the centering adjustment part, and a lifting guide rod is provided at the other end of the centering adjustment part. The height adjustment part adjusts the height of the centering adjustment part, thereby adjusting the height of the first clamping guide rod and the second clamping guide rod, ultimately realizing the adjustment of the height of the first box-opening part and the second box-opening part. The lifting guide rod plays a guiding role in the height adjustment.

[0027] Specifically, the first box-opening section includes a box-opening frame, within which a first helical gear shaft and a second helical gear shaft are provided. The first and second helical gear shafts are rotatably connected to the box-opening frame, perpendicular to each other and meshing. The first helical gear shaft passes through the box-opening frame, with a first prying blade at one end and a box-opening swing rod connected to the other end. A second prying blade is provided at the end of the second helical gear shaft away from the first helical gear shaft. A box-opening cylinder is provided on one outer side of the box-opening frame, with its output end rotatably connected to the box-opening swing rod. The box-opening cylinder pulls the box-opening swing rod, which drives the first helical gear shaft to rotate. The first and second helical gear shafts mesh and transmit power. The first and second prying blades swing downwards synchronously to open the box covers on two adjacent sides of one corner of the empty box. The structure and working principle of the second box-opening section are the same as those of the first box-opening section. The first and second box-opening sections respectively open the box covers on two adjacent sides of the two diagonal corners of the empty box to open the empty box.

[0028] Specifically, the centering adjustment part includes a first double guide rod bearing assembly. A third bearing mounting plate and a fourth bearing mounting plate are respectively connected to both ends of the first double guide rod bearing assembly. A first clamping guide rod is connected and installed to the third bearing mounting plate, and a second clamping guide rod is connected and installed to the fourth bearing mounting plate. The two ends of the two guide rods of the first double guide rod bearing assembly are respectively connected to the third guide rod mounting plate and the fourth guide rod mounting plate. A height adjustment part is connected and installed to the third guide rod mounting plate. A lifting guide rod is provided on the fourth guide rod mounting plate, and the lifting guide rod is connected and installed to the fourth guide rod mounting plate. A positive and negative threaded screw bearing assembly is installed through the third and fourth bearing mounting plates. The two ends of the threaded screw of the positive and negative threaded screw bearing assembly are rotatably connected to the third and fourth guide rod mounting plates, respectively. A second handwheel is provided on one end of the positive and negative threaded screw bearing assembly.

[0029] By adopting the above technical solution, the distance between the third bearing mounting plate and the fourth bearing mounting plate can be adjusted by cranking the second handwheel to adjust the distance between the first clamping guide rod and the second clamping guide rod, thereby adjusting the distance between the first box-opening part and the second box-opening part. At the same time, the distance between the first box-opening part and the centering adjustment part on the first clamping guide rod is adjusted so that the distance between the first box-opening part and the centering adjustment part is the same as the distance between the second box-opening part and the centering adjustment part. This achieves the goal of aligning the first box-opening part and the second box-opening part on a diagonal line in a positive direction, so as to open boxes of different sizes, thereby achieving its versatility.

[0030] Specifically, the height adjustment unit includes a second double guide rod bearing assembly. The lower end of the second double guide rod bearing assembly is provided with a fifth bearing mounting plate, which is connected and installed with a third guide rod mounting plate. The upper end of the second double guide rod bearing assembly is connected with a mounting base. A second lead screw bearing assembly is installed through the mounting base and the fifth bearing mounting plate. The upper end of the lead screw of the second lead screw bearing assembly is provided with a helical gear. A third helical gear shaft is connected to the horizontal mounting base. The helical gear of the second lead screw bearing assembly is meshed with the third helical gear shaft. A third handwheel is provided on one end of the third helical gear shaft.

[0031] By adopting the above technical solution, the height of the centering adjustment part, the first clamping guide rod, the second clamping guide rod, the first box-opening part and the second box-opening part can be adjusted by shaking the third handwheel to adapt to opening boxes of different heights, thereby achieving the purpose of strong versatility.

[0032] Preferably, the packing and positioning mechanism includes two parallel first and second outbound chain conveyor assemblies. A first linkage shaft is connected to the same end of both assemblies, and a second linkage shaft is connected to the other end of both assemblies. A packing platform is provided between the first and second outbound chain conveyor assemblies. A third servo motor and a fifth limiting guide assembly are provided on the side of the second outbound chain conveyor assembly facing away from the inbound mechanism. A first reducer is provided at the output end of the third servo motor, which is connected to the first linkage shaft via the first reducer. One or more roller mounting components are provided on each of the first and second outbound chain conveyor assemblies. A pusher roller is connected between the opposing roller mounting components on the first and second outbound chain conveyor assemblies. The first outbound chain conveyor assembly includes two sprockets and a chain connecting the two sprockets. The structure of the second outbound chain conveyor assembly is the same as that of the first outbound chain conveyor assembly.

[0033] By adopting the above technical solution, the fifth limiting guide component provides a limiting reference positioning for the empty box pushed by the box pushing mechanism. At the same time, the box pushing roller above the first and second box exit chain conveyor components limits the empty box. After the empty box is filled with packaged products, the third servo motor drives the first linkage shaft to rotate, thereby driving the first and second box exit chain conveyor components to drive together. The first and second box exit chain conveyor components drive the box pushing roller to rotate and translate to push the full box (i.e., the box filled with packaged products) to the transfer mechanism. This realizes box positioning and full box conveying, and improves the accuracy of boxing and the efficiency of full box conveying.

[0034] Preferably, the packing mechanism includes a first linear module and a second linear module arranged in parallel. A third linkage shaft is connected to the same end of both the first and second linear modules. The first linear module is linked to the second linear module via the third linkage shaft. A fourth servo motor is connected to one end of the first linear module. A third linear module is connected across the first and second linear modules. A fifth servo motor is located on one side of one end of the third linear module. A second coupling is located at the output end of the fifth servo motor, which is driven by the fifth servo motor and the third linear module. A slide is provided on the third linear module, and a fourth linear module is located on one side of the slide. A sixth servo motor is located on the slide and is driven by the sixth servo motor and the fourth linear module via the third coupling and a belt conveyor assembly. A negative pressure suction box is connected to the lower end of the fourth linear module. The negative pressure suction box has one or more suction nozzles, which are connected to a vacuum mechanism located on the top of the packing frame via vacuum pipes. Both the first and second linear modules are mounted on the packing frame.

[0035] By adopting the above technical solution, the first and second linear modules, driven by the fourth servo motor, drive the third linear module to move back and forth. The fifth servo motor drives the fourth linear module to move left and right through the third linear module. The sixth servo motor drives the negative pressure suction box to move up and down through the fourth linear module. The suction nozzle picks up the packaged products from the dual servo feeder and places them into the empty box on the boxing positioning mechanism to complete the boxing of the packaged products. The first, second, third, and fourth linear modules achieve three-dimensional spatial positioning and cooperate with the suction nozzle on the negative pressure suction box to pick up and convey the packaged products and place them into the empty box. This realizes the automation of boxing the packaged products from the top of the box, which facilitates the subsequent sealing process and ensures that the packaged products have the advantages of neat boxing, high boxing efficiency, and good boxing effect. This solves the problems of uneven boxing, low boxing efficiency, and poor boxing effect caused by the side boxing of the current boxing machines on the market.

[0036] Preferably, the transplanting mechanism includes a transplanting conveyor frame, with transplanting chain conveyor assemblies on both sides. A second rotating shaft is located at one end of the transplanting conveyor frame, rotatably connected to it. Sprockets at the same end of the two transplanting chain conveyor assemblies are connected to the second rotating shaft. Transplanting bearing seats are located at both ends of the second rotating shaft, rotatably connected to it. A fourth linkage shaft is located at the other end of the transplanting conveyor frame, rotatably connected to it. Sprockets at the other ends of the two transplanting chain conveyor assemblies are connected to the fourth linkage shaft. A seventh servo motor is located on the outside of one of the transplanting chain conveyor assemblies. A second reducer is located at the output end of the seventh servo motor, connecting it to the fourth linkage shaft via the second reducer. A transplanting lowering cylinder is located below the other end of the transplanting conveyor frame, rotatably connected to it. The two transplanting bearing seats and the transplanting lowering cylinder are mounted on a packing frame.

[0037] By adopting the above technical solution, after the boxing and positioning mechanism pushes the full box onto the two transplanting chain conveyor components, the seventh servo motor drives the two transplanting chain conveyor components to transport the full box to above the lower full box roller line through the second reducer and the fourth linkage shaft. The transplanting sinking cylinder drives the transplanting conveyor frame to swing downward around the second rotating axis, and the two transplanting chain conveyor components descend and become lower than the lower full box roller line, so that the full box is conveyed to the lower full box roller line. The lower full box roller line collects and conveys the full boxes. The structural design of the transplanting mechanism not only realizes the collection and conveying of full boxes from multiple transplanting mechanisms on the lower full box roller line to ensure neat unloading, but also realizes the automated completion of full box unloading and recycling, and has the advantages of high unloading efficiency and good unloading effect.

[0038] Preferably, the upper empty box roller conveyor and each empty box dispensing mechanism are respectively equipped with a forced stop photoelectric sensor, an arrival photoelectric sensor and a box dispensing blocker at their respective positions.

[0039] By adopting the above technical solution, when the current empty box distribution mechanism is out of boxes, and the subsequent empty box distribution mechanisms are not out of boxes, the photoelectric sensor detects an empty box, the box blocking device blocks the current empty box conveyor, and the empty box distribution mechanism picks up an empty box from the upper empty box roller conveyor. The upper empty box roller conveyor then sequentially distributes empty boxes from the first empty box distribution mechanism that is out of boxes to the next one along the empty box conveying direction. When the middle and lower spatial positions of an empty box distribution mechanism are out of boxes simultaneously, the upper empty box roller conveyor prioritizes supplying boxes to that mechanism. When the middle and lower spatial positions of multiple empty box distribution mechanisms are out of boxes simultaneously, the upper empty box roller conveyor sequentially distributes empty boxes from the first empty box distribution mechanism that is out of boxes to the next one along the empty box conveying direction. The current empty box distribution mechanism... When empty boxes are stored in the middle and lower spatial positions, the corresponding box-separating blocker of the current empty box distribution mechanism releases the empty boxes. Through the strong stop photoelectric sensor, the box arrival photoelectric sensor and the box-separating blocker, the upper empty box roller line distributes empty boxes to each empty box distribution mechanism. By adjusting the speed of the upper empty box roller line, one upper empty box roller line can continuously and adequately supply boxes to multiple box packing machines. This promotes efficient and continuous box packing, uninterrupted box packing, high box packing efficiency, and reduced costs. It solves the problems of complex structure, large footprint and high production cost caused by the current box packing production line where each box packing machine must be equipped with a box conveyor line (i.e., multiple box packing machines must be equipped with multiple box conveyor lines).

[0040] Preferably, the upper empty box roller line is provided with a stacking photoelectric sensor, a storage box photoelectric sensor and a storage box blocker at one end for receiving and storing empty boxes.

[0041] By adopting the above technical solution, when the upper empty box roller conveyor starts working, the storage blocker blocks the first empty box to store it; when empty boxes are delivered to each empty box distribution mechanism, the storage blocker releases the empty boxes; when empty boxes are stored in the middle and lower space positions of all empty box distribution mechanisms, the empty box distribution mechanism does not pick up empty boxes from the upper empty box roller conveyor; when the arrival photoelectric sensor and the forced stop photoelectric sensor corresponding to any empty box distribution mechanism simultaneously detect an empty box, the upper empty box roller conveyor stops conveying empty boxes; when the accumulation photoelectric sensor detects an empty box, it stops delivering boxes to the upper empty box roller conveyor.

[0042] Preferably, the lower-level full-box roller conveyor and the transplanting mechanism are respectively provided with a full-box stopper and a full-box conveying photoelectric sensor at the corresponding positions.

[0043] By adopting the above technical solution, when the transplanting mechanism needs to transplant a full box to the lower full box roller conveyor, the full box blocker blocks the full box conveyed by the lower full box roller conveyor. After the lower full box roller conveyor receives the full box transplanted by the transplanting mechanism and starts conveying, the full box blocker releases the full box currently blocked by it. When the current full box conveying photoelectric sensor detects that a full box is being conveyed at the corresponding position on the lower full box roller conveyor, the transplanting mechanism pauses the transplanting of full boxes to the lower full box roller conveyor. After the full box passes the current full box conveying photoelectric sensor, the full box blocker blocks the subsequent full boxes conveyed, and the transplanting mechanism resumes transplanting full boxes to the lower full box roller conveyor. After the lower full box roller conveyor receives the full box transplanted by the transplanting mechanism and starts conveying, the full box blocker releases the subsequent full boxes conveyed by the lower full box roller conveyor. By using a box stopper and a full-box conveyor photoelectric sensor in conjunction with the lower full-box roller conveyor, full boxes are collected and conveyed in an orderly and efficient manner. By adjusting the speed of the lower full-box roller conveyor for empty boxes, one lower full-box roller conveyor can collect and convey full boxes from multiple transplanting mechanisms. This ensures that the lower full-box roller conveyor can smoothly convey full boxes without stagnation, and that full-box recovery is highly efficient, while also reducing costs. This solves the problems of existing box packing production lines on the market, which require each box packing machine to be equipped with a full-box product conveyor line (i.e., multiple box packing machines must be equipped with multiple full-box product conveyor lines), resulting in complex structures, large footprints, and high production costs.

[0044] Preferably, the components such as the upper empty box roller conveyor, the lower full box roller conveyor, the box packer, the empty box distribution mechanism, the dual servo material handling mechanism, the product conveyor line, the box feeding mechanism, the box positioning mechanism, the box pushing mechanism, the box packing mechanism, the box lifting mechanism, the transfer mechanism, and the vacuuming mechanism are equipped with a controller or PLC control system for signal control. The controller is a PLC programmable logic controller, which can be a programmable logic controller of model XDS-40T-D, but is not limited to this.

[0045] It should be noted that both the first and second forward / reverse threaded linkage assemblies include forward / reverse threaded linkages, with internally threaded external linkage fisheye joints or rod end spherical bearings connected to both ends of the linkages. The terms "inlet roller conveyor," "upper empty roller conveyor," and "lower full roller conveyor" are functional descriptions of the roller conveyors; their specific structures and working principles are common knowledge and will not be explained in detail here. The terms "first photoelectric sensor," "second photoelectric sensor," "third photoelectric sensor," "fourth photoelectric sensor," "middle layer photoelectric sensor," "lower layer photoelectric sensor," "forced stop photoelectric sensor," "inlet photoelectric sensor," "accumulation photoelectric sensor," "storage tank photoelectric sensor," and "full tank conveyor photoelectric sensor" are functional descriptions of photoelectric sensors. All of these can use M18 proximity sensors, but this is not a limitation.

[0046] Compared with existing technologies, the beneficial effects of this invention are as follows: 1. Its overall structural design enables automatic feeding and conveying of empty boxes and packaged products on a single delivery line, automatic detection of the length and weight of the conveyed packaged products, automatic removal and rejection of packaged products that do not meet the requirements, automatic grouping and collection of packaged products that meet the requirements, automatic storage of empty boxes, automatic orderly supply of empty boxes according to the detected shortage status, automatic positioning of empty boxes before packing, automatic unpacking of empty boxes, automatic filling of empty boxes with packaged products, and automatic collection, conveying and unloading of full boxes filled with packaged products. It achieves automatic unpacking of the box lid from the top and automatic loading of packaged products from the top of the empty box without the need to add a structure to adjust the orientation of the empty box, thus overcoming the problems of existing box openers that can only pack empty boxes from the side, resulting in uneven packing, low packing efficiency and poor packing effect.

[0047] 2. By designing the structure of the product conveyor line, it enables the adjustment of the distance between the first and second photoelectric sensors through a weighing conveyor mechanism to suit the detection of packaged products of different lengths and to determine whether the products meet the packing requirements by measuring their weight. The rejection conveyor mechanism uses a rejection cylinder to pull the rejection conveyor line to swing downward around the first rotating axis to unload rejected packaged products. By adjusting the downward-sloping end of the injection conveyor belt of the injection conveyor mechanism to connect with the dual-servo material handling mechanism, the combination of the injection conveyor belt and the side-mounted conveyor belt can increase the friction with the packaged products, enabling the packaged products to be quickly transferred to the dual-servo material handling mechanism, thus ensuring that the packaged products are delivered to the dual-servo material handling mechanism in place.

[0048] 3. By designing the structure of the dual-servo feeding mechanism, it sequentially receives packaged products from the injection conveyor through the first and second circulation lines, and groups and collects the packaged products. This enables it to continuously receive packaged products, group the received packaged products, and prepare materials for the boxing mechanism.

[0049] 4. By designing the structure of the empty box distribution mechanism, it can detect whether there is a shortage of empty boxes based on the middle layer photoelectric sensor or the lower layer photoelectric sensor, and drive the box pushing cylinder to pick up empty boxes from the upper empty box roller line. The upper layer opening and closing mechanism and the middle layer opening and closing mechanism respectively realize the storage of empty boxes or the release of empty boxes to continuously supply empty boxes to the box entering mechanism, so as to ensure sufficient box supply to the box entering mechanism.

[0050] 5. By designing the structures of the box feeding mechanism and the box positioning mechanism separately, when the fourth photoelectric sensor of the box feeding mechanism detects a missing box, the box feeding blocker releases the empty box, and the box feeding roller conveyor transports the empty box to the bottom of the box pushing mechanism to reserve empty boxes for packaging products. When the box positioning mechanism is full of products and the packaging box is pushed to the transfer mechanism, the second servo motor of the box pushing mechanism drives the push plate to move the empty box to the box positioning mechanism to prepare for packaging products. This realizes the orderly supply of boxes to the box positioning mechanism on demand.

[0051] 6. By designing the structure of the box-opening mechanism, it enables the automatic opening of the box lid from the top of the empty box. The box-opening mechanism works in conjunction with the box-packing mechanism to load packaged products from the top of the empty box, ensuring that the packaged products are neatly packed. This greatly improves the packing efficiency of the packaged products and the subsequent sealing efficiency. It also solves the problem that existing box-opening machines can only pack empty boxes from the side, and cannot open the box from the top or load packaged products from the top of the empty box, resulting in uneven packing and low packing efficiency.

[0052] 7. By designing the structure of the transplanting mechanism and cooperating with the upper empty box roller line, the lower full box roller line, the empty box distribution mechanism, and the box packing machine, it enables the collection and transmission of full boxes from multiple transplanting mechanisms using only one lower full box roller line and the continuous and sufficient supply of boxes to multiple box packing machines using only one upper empty box roller line. It eliminates the need for multiple packaging box conveyor lines and multiple full box product conveyor lines, thus solving the problems of complex structure, large footprint, and high production cost caused by the current box packing production line requiring each box packing machine to be equipped with a packaging box conveyor line, a box opener, a packaged product conveyor line, and a full box product conveyor line. Attached Figure Description

[0053] For ease of explanation, the present invention will be described in detail below with reference to the preferred embodiments and accompanying drawings.

[0054] Figure 1 This is a perspective view of the intelligent empty box delivery and packing line of the present invention.

[0055] Figure 2 This is a perspective view of a packing machine in the intelligent empty box delivery and packing line of the present invention.

[0056] Figure 3 The intelligent empty box delivery and packing line of the present invention Figure 2 3D images from different angles.

[0057] Figure 4 This is a perspective view of the weighing and conveying mechanism of the intelligent empty box delivery and packing line of the present invention.

[0058] Figure 5This is a perspective view of the rejection conveying mechanism of the intelligent empty box delivery and packing line of the present invention.

[0059] Figure 6 The intelligent empty box delivery and packing line of the present invention Figure 5 3D images from different angles.

[0060] Figure 7 This is a perspective view of the injection conveying mechanism of the intelligent empty box delivery and packing line of the present invention.

[0061] Figure 8 This is a perspective view of the dual-servo material handling mechanism of the intelligent empty box delivery and packing line of the present invention.

[0062] Figure 9 This is a perspective view of the material handling support plate of the dual-servo material handling mechanism of the intelligent empty box delivery and packing line of the present invention.

[0063] Figure 10 This is a perspective view of the material sorting plate of the dual-servo material sorting mechanism in the intelligent empty box delivery and packing line of the present invention.

[0064] Figure 11 This is a perspective view of the empty box sorting mechanism of the intelligent empty box delivery and packing line of the present invention.

[0065] Figure 12 This is a perspective view of the upper opening and closing mechanism of the empty box distribution mechanism of the intelligent empty box delivery and packing line of the present invention.

[0066] Figure 13 This is a perspective view of the middle layer opening and closing mechanism of the empty box distribution mechanism of the intelligent empty box delivery and packing line of the present invention.

[0067] Figure 14 This is a perspective view of the box-feeding mechanism and the box-pushing mechanism of the intelligent empty box delivery and packing line of the present invention.

[0068] Figure 15 This is a perspective view of the box-packing positioning mechanism and the box-opening mechanism of the intelligent empty box delivery and packing line of the present invention.

[0069] Figure 16 This is a perspective view of the box-opening mechanism of the intelligent empty box delivery and packing line of the present invention.

[0070] Figure 17 The intelligent empty box delivery and packing line of the present invention Figure 16 3D images from different angles.

[0071] Figure 18 The intelligent empty box delivery and packing line of the present invention Figure 17 3D images from different angles.

[0072] Figure 19This is a perspective view of the packing and positioning mechanism of the intelligent empty box delivery and packing line of the present invention.

[0073] Figure 20 This is a perspective view of the packing mechanism of the intelligent empty box delivery and packing line of the present invention.

[0074] Figure 21 The intelligent empty box delivery and packing line of the present invention Figure 20 3D images from different angles.

[0075] Figure 22 This is a perspective view of the transplanting mechanism of the intelligent empty box delivery and packing line of the present invention.

[0076] Figure 23 This is a partial three-dimensional view of the upper empty box roller conveyor and an empty box distribution mechanism, as well as the lower full box roller conveyor and transplanting mechanism of the intelligent empty box delivery and packing line of the present invention.

[0077] Figure 24 This is a perspective view of the inlet blocker, sorting blocker, storage blocker, or full-box blocker of the intelligent empty box delivery and packing line of the present invention.

[0078] Figure 25 This is a perspective view of the first, second, third, fourth, or fifth limiting guide component of the intelligent empty box delivery and packing line of the present invention. Detailed Implementation

[0079] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0080] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0081] Reference Figure 1As shown, the intelligent empty box delivery and packing line of the present invention includes an upper empty box roller line 1, a lower full box roller line 2 below the upper empty box roller line 1, one or more packing machines 3 on the same side of the upper empty box roller line 1 and the lower full box roller line 2, and an empty box distribution mechanism 4 between the upper empty box roller line 1 and each packing machine 3. The upper empty box roller line 1 supplies and conveys empty boxes, each empty box distribution mechanism 4 distributes empty boxes to the corresponding packing machine 3, the packing machine 3 packs the empty boxes into boxes, and the lower full box roller line 2 collects and conveys the full boxes transferred from each packing machine 3.

[0082] Reference Figure 2 and Figure 3 As shown, the case packing machine 3 includes a case packing frame 30. The case packing frame 30 contains a dual-servo material handling mechanism 5 for receiving packaged products 13 and grouping them. A product conveyor line 6 is located on one side of the dual-servo material handling mechanism 5, conveying packaged products 13 to the mechanism. A case feeding mechanism 7 and a case positioning mechanism 8 are located on the other side of the mechanism. The case feeding mechanism 7 and the case positioning mechanism 8 are adjacent and connected. A case pushing mechanism 9 is located above the case feeding mechanism 7, receiving empty cases from the empty case distribution mechanism 4 and pushing the cases. Mechanism 9 conveys empty boxes to the box-packing and positioning mechanism 8. The top of the box-packing frame 30 is equipped with a box-packing mechanism 10. Above the box-packing and positioning mechanism 8 is a box-opening mechanism 11 for opening empty boxes. The box-opening mechanism 11 opens the empty boxes on the box-packing and positioning mechanism 8. The box-packing mechanism 10 picks up the packaged products 13 from the dual-servo material handling mechanism 5 and puts them into the empty boxes. A transfer mechanism 12 is provided on one side of the box-packing mechanism 10. The box-packing and positioning mechanism 8 pushes the boxes filled with packaged products 13 onto the transfer mechanism 12. The transfer mechanism 12 conveys the boxes filled with packaged products 13 to the lower full-box roller line 2.

[0083] Specifically, the product conveying line 6 includes a weighing conveying mechanism 61, a rejection conveying mechanism 62, and an injection conveying mechanism 63, which are connected in sequence. The weighing conveying mechanism 61 weighs the packaged product 13, the rejection conveying mechanism 62 removes and rejects the packaged product 13 that does not meet the requirements, and the injection conveying mechanism 63 quickly conveys the packaged product 13 to the dual servo material handling mechanism 5.

[0084] Reference Figure 4As shown, the weighing conveying mechanism 61 includes a weighing bracket 611. A weighing sensor 612 is provided on the top surface of the upper end of the weighing bracket 611. A weighing conveying line 613 is provided on the weighing sensor 612. A first fixed guide plate 614 is provided on one side of the weighing conveying line 613, and a first limiting guide assembly 615 is provided on the other side of the weighing conveying line 613. A positioning adjustment rod 616 is provided above the weighing conveying line 613. A first photoelectric sensor 617 and a second photoelectric sensor 618 are provided on the positioning adjustment rod 616. The positioning adjustment rod 616 is fixedly installed on the upper end of the weighing bracket 611 through a photoelectric sensor bracket 619.

[0085] Reference Figure 5 and Figure 6 As shown, the rejection conveying mechanism 62 includes a rejection bracket 620, on which a rejection conveying line 621 is mounted. One end of the rejection conveying line 621 has a first rotating shaft 622, and the rejection conveying line 621 is rotatably connected to the rejection bracket 620 via the first rotating shaft 622. A rejection cylinder 623 is mounted on the rejection bracket 620, with its cylinder body rotatably connected to one side of the rejection bracket 620. The output end of the rejection cylinder 623 is rotatably connected to the bottom of the rejection conveying line 621. A second fixed guide plate 624 is provided on one side of the rejection conveying line 621, and a second limiting guide assembly 625 is provided on the other side of the rejection conveying line 621. A first crossbar 626 is connected to the side of the rejection bracket 620 facing the injection conveying mechanism 63.

[0086] Reference Figure 7 As shown, the injection conveying mechanism 63 includes a tilt adjustment frame 631. Two universal feet 632 are provided under one side of the tilt adjustment frame 631. Each universal foot 632 is provided with a clamping member 633. Positioning seats 634 are provided on the same side of the two clamping members 633. A lead screw connecting rod 635 is provided through the two positioning seats 634. A locking device 636 is provided on the positioning seat 634 to lock and position the lead screw connecting rod 635. A first positive and negative tooth connecting rod assembly 637 is connected between each positioning seat 634 and the other side of the tilt adjustment frame 631. Twisting the first positive and negative tooth connecting rod assembly 637 can adjust the tilt of the tilt adjustment frame 631 along the conveying direction of the packaged product 13.

[0087] Specifically, a first bearing mounting plate 638 is provided on one side of the tilt adjustment frame 631, and a first guide rod bearing assembly 639 is provided on each of the two ends of the first bearing mounting plate 638. In this embodiment, according to common knowledge, the first guide rod bearing assembly 639 includes a guide rod and a bearing seat mounted on the guide rod, and the guide rod and the bearing seat are threadedly connected. In other embodiments, the first guide rod bearing assembly 639 may also include a guide sleeve and a guide rod passing through the center of the guide sleeve, so it is not limited thereto. The upper ends of the guide rods of the two first guide rod bearing assemblies 639 are connected to the first guide rod mounting plate 638. 301. The tilt adjustment frame 631 is connected and installed to the first bearing mounting plate 638. An injection conveyor belt 6302 is provided above the tilt adjustment frame 631. One end of the injection conveyor belt 6302 is hinged to the first guide rod mounting plate 6301 via a hinge 6303, and the other end of the injection conveyor belt 6302 is connected to the first bearing mounting plate 638 via a second positive and negative tooth connecting rod assembly 6304. A first lead screw bearing assembly 6305 is provided through the first bearing mounting plate 638. In this embodiment, the first lead screw bearing assembly 6305 includes a bearing fixing seat and a through shaft. The first lead screw is centered on the bearing seat. The upper end of the lead screw of the first lead screw bearing assembly 6305 is rotatably connected to the first guide rod mounting plate 6301. The lower end of the lead screw of the first lead screw bearing assembly 6305 is provided with a first handwheel 6306. Rotating the first handwheel 6306 in both directions can raise or lower the first guide rod mounting plate 6301 to adjust the lateral tilt of the injected conveyor belt 6302. The first guide rod mounting plate 6301 is raised or lowered to adjust the lateral tilt of the injected conveyor belt 6302. A positioning lock 63 is commonly fitted on the guide rods of the two first guide rod bearing assemblies 639. 07. The positioning lock 6307 is located between the first guide rod mounting plate 6301 and the first bearing mounting plate 638. The lead screw of the first lead screw bearing assembly 6305 moves through the middle of the positioning lock 6307. The positioning lock 6307 locks the guide rods of the two first guide rod bearing assemblies 639 onto the first bearing mounting plate 638 to fix the lateral tilt of the injection conveyor belt 6302. A side-standing conveyor belt 6308 is provided on the other end of the injection conveyor belt 6302, which is perpendicular to the injection conveyor belt 6302. The injection conveying mechanism 63 is mounted on the first crossbar 626 of the rejection conveying mechanism 62 via the clamping member 633. The tilt adjustment frame 631 is mounted on the clamping member 633 via the universal foot cup 632, and the tilt adjustment frame 631 can swing freely on the universal foot cup 632.

[0088] Reference Figures 8 to 10As shown, the dual-servo material handling mechanism 5 includes a material handling frame 50, and a first circulation line 51 and a second circulation line 52 are respectively provided on the two inner sides of the material handling frame 50. The first circulation line 51 includes a material handling circulation conveyor line 53, and a first servo motor 54 is connected to one side of the material handling circulation conveyor line 53. The structure of the second circulation line 52 is the same as that of the first circulation line 51. The structure of the second circulation line 52 is opposite to that of the first circulation line 51. The second circulation line 52 and the first circulation line 51 convey the packaged product 13 in the same direction.

[0089] Specifically, the surfaces of the first circulation line 51 and the second circulation line 52 are each provided with a material handling support plate 55 and several material handling dividers 56. The material handling support plate 55 and material handling dividers 56 on the first circulation line 51 and the second circulation line 52 are arranged in the same orientation. A product baffle 57 is provided on one side of the second circulation line 52 to block and limit the packaged products 13 that are conveyed.

[0090] Specifically, the material handling support plate 55 includes a first mounting part 58 and a support part 59, which are perpendicular to each other and integrally formed. The support part 59 extends obliquely upward to provide a support part 501 for supporting the packaged product 13. The material handling dividing plate 56 includes a second mounting part 502, which extends laterally and vertically to provide a dividing part 503. The second mounting part 502 and the dividing part 503 are integrally formed.

[0091] Reference Figure 11As shown, the empty box dispensing mechanism 4 includes a box dropping bracket 40. A second bearing mounting plate 41 is provided at the upper end of the box dropping bracket 40. Second guide rod bearing assemblies 42 are respectively provided at both ends of the second bearing mounting plate 41. The second guide rod bearing assemblies 42 have the same structure as the first guide rod bearing assembly 639. One end of the guide rods of the two second guide rod bearing assemblies 42 is connected to a box-pushing cylinder mounting plate 43. The other end of the guide rods of the two second guide rod bearing assemblies 42 is connected to a second guide rod mounting plate 44. A box-pushing cylinder 45 is provided on the box-pushing cylinder mounting plate 43. The output end of the box-pushing cylinder 45 is connected to the second bearing mounting plate 41. A box-pushing frame 46 is connected to the lower end of the second bearing mounting plate 41. The box-pushing cylinder 45 drives the second bearing mounting plate 41 to move. 1. The pusher frame 46 pushes empty boxes into the upper space of the drop box support 40. The drop box support 40 has an upper opening and closing mechanism 47 and a middle opening and closing mechanism 48 on both sides of the middle section, from high to low. The two upper opening and closing mechanisms 47 are arranged opposite each other, supporting and storing empty boxes in the upper space of the drop box support 40. The two middle opening and closing mechanisms 48 are arranged opposite each other, supporting and storing empty boxes in the middle space of the drop box support 40. A middle photoelectric sensor 49 is provided in the middle of the drop box support 40 to detect whether there are empty boxes stored in the middle space of the drop box support 40. A lower photoelectric sensor 401 is provided at the lower end of the drop box support 40 to detect whether there are empty boxes stored in the lower space of the drop box support 40.

[0092] Reference Figure 12 As shown, the upper opening and closing mechanism 47 includes an upper opening and closing cylinder 471 and an upper support plate 472. The output end of the upper opening and closing cylinder 471 is rotatably connected to one end of the upper support plate 472. An upper rotating shaft frame 473 is provided on the same end of one end of the upper support plate 472. The upper rotating shaft frame 473 has a U-shaped design. An upper opening and closing rotating shaft 474 is provided at the upper end of the upper rotating shaft frame 473. Upper bearing seats 475 are respectively fitted at both ends of the upper opening and closing rotating shaft 474. The upper opening and closing cylinder 471 drives the upper support plate 472 to rotate around the upper opening and closing rotating shaft 474. A roller mounting plate 476 extends laterally from the other end of the upper support plate 472. The roller mounting plate 476 has one or more rollers 477. The cylinder body of the upper opening and closing cylinder 471 is rotatably connected to the box drop bracket 40, and the upper bearing seat 475 is fixedly connected to the box drop bracket 40.

[0093] Reference Figure 13As shown, the middle layer opening and closing mechanism 48 includes a middle layer opening and closing cylinder 481 and a middle layer support plate 482. The output end of the middle layer opening and closing cylinder 481 is rotatably connected to one end of the middle layer support plate 482. A middle layer rotating shaft frame 483 is provided on the same end of one end of the middle layer support plate 482. The middle layer rotating shaft frame 483 has a U-shaped design. A middle layer opening and closing rotating shaft 484 is provided on the upper end of the middle layer rotating shaft frame 483. Middle layer bearing seats 485 are respectively fitted on both ends of the middle layer opening and closing rotating shaft 484. A lateral carriage section 486 is provided on the other end of the middle layer support plate 482. The carriage section 486 has an L-shaped design. The cylinder body of the middle layer opening and closing cylinder 481 is rotatably connected to the carriage drop support 40, and the middle layer bearing seat 485 is fixedly connected to the carriage drop support 40.

[0094] Reference Figure 14 As shown, the box feeding mechanism 7 includes a box feeding roller line 71. A third limiting guide component 72 and a third photoelectric sensor 73 are provided on one side of the box feeding roller line 71, and a fourth limiting guide component 74 is provided on the other side of the box feeding roller line 71. A reference plate 75 and a fourth photoelectric sensor 76 are provided at the end of the box feeding roller line 71 along the empty box conveying direction. A box feeding blocker 77 is provided below the box feeding roller line 71.

[0095] Reference Figure 14 As shown, the box-pushing mechanism 9 includes a first ball screw module 91. A push plate 90 is provided on one side of the sliding portion of the first ball screw module 91. A second servo motor 92 is provided on one side of one end of the first ball screw module 91. A first coupling 93 is provided at the output end of the second servo motor 92. The second servo motor 92 is connected to the first ball screw module 91 via the first coupling 93. In this embodiment, the first ball screw module 91 mainly includes a linear guide rail, a sliding portion (i.e., a support seat), and a ball screw. The sliding portion is mounted on the linear guide rail via a slider. The ball screw is threaded into the middle of the sliding portion. Rotating the ball screw in both directions drives the sliding portion to reciprocate linearly on the linear guide rail. In other embodiments, the first ball screw module 91 can also be configured as a belt-driven linear module, so it is not limited to this. The box-feeding roller line 71, the box-feeding stopper 77, and the first ball screw module 91 are all fixedly installed on the box-packing frame 30.

[0096] Reference Figures 15 to 18As shown, the box-opening mechanism 11 includes a first clamping guide rod 111 and a second clamping guide rod 112 arranged in parallel. A first box-opening section 113 is provided at one end of the first clamping guide rod 111, and a second box-opening section 114 is provided at one end of the second clamping guide rod 112. The first box-opening section 113 and the second box-opening section 114 are staggered. A centering adjustment section 115 is connected across the first clamping guide rod 111 and the second clamping guide rod 112. The first clamping guide rod 111 is connected to the third bearing mounting plate 1151 of the centering adjustment section 115, and the second clamping guide rod 112 is connected to the fourth bearing mounting plate 1152 of the centering adjustment section 115. The centering adjustment part 115 is equipped with a height adjustment part 116 at one end, which is connected to the third guide rod mounting plate 1153 of the centering adjustment part 115. The centering adjustment part 115 is equipped with a lifting guide rod 117 at the other end, which is connected to the fourth guide rod mounting plate 1155 of the centering adjustment part 115. The height adjustment part 116 adjusts the height of the centering adjustment part 115, thereby adjusting the height of the first clamping guide rod 111 and the second clamping guide rod 112, ultimately realizing the adjustment of the height of the first box-opening part 113 and the second box-opening part 114. The lifting guide rod 117 plays a guiding role in the height adjustment. The box-opening mechanism 11 can open the box covers on the two adjacent sides of the two corners on the diagonal of the empty box through the first box-opening part 113 and the second box-opening part 114 respectively, so as to automatically open the empty box. It realizes that the box cover can be opened directly from the top of the empty box without adjusting the orientation of the empty box, thus solving the problem that existing box-opening machines cannot open the top of the empty box without adding corresponding equipment or structure to adjust the orientation of the empty box.

[0097] Specifically, the first box-opening section 113 includes a box-opening frame 1130. A first helical gear shaft 1131 and a second helical gear shaft 1132 are disposed within the box-opening frame 1130. The first helical gear shaft 1131 and the second helical gear shaft 1132 are rotatably connected to the box-opening frame 1130, and are perpendicular to each other and meshing. The first helical gear shaft 1131 passes through the box-opening frame 1130. A first box-opening plate 1133 is provided at one end of the first helical gear shaft 1131, and a box-opening swing rod 1134 is connected to the other end of the first helical gear shaft 1131. The second helical gear shaft 1132 is located away from the first helical gear shaft 1131. A second prying blade 1135 is provided at one end of the gear shaft 1131, and a prying cylinder 1136 is provided on the outer side of the prying frame 1130. The output end of the prying cylinder 1136 is rotatably connected to the prying swing rod 1134. The prying cylinder 1136 pulls the prying swing rod 1134 to rotate, and the prying swing rod 1134 drives the first helical gear shaft 1131 to rotate. The first helical gear shaft 1131 meshes with the second helical gear shaft 1132 for transmission. The first prying blade 1133 and the second prying blade 1135 swing downward synchronously to open the box cover on the adjacent two sides of one corner of the empty box. The structure and working principle of the second prying part 114 are the same as those of the first prying part 113.

[0098] Specifically, the centering adjustment part 115 includes a first double guide rod bearing assembly 1150. The first double guide rod bearing assembly 1150 has a third bearing mounting plate 1151 and a fourth bearing mounting plate 1152 connected to its two ends respectively. In this embodiment, the first double guide rod bearing assembly 1150 includes two parallel guide rods, each guide rod having its two ends connected to the third bearing mounting plate 1151 and the fourth bearing mounting plate 1152 respectively via bearings. The two ends of the two guide rods of the first double guide rod bearing assembly 1150 are also connected to a third guide rod mounting plate 1153 and a fourth guide rod mounting plate 1155 respectively. The lifting guide rod 1... 17. A positive and negative threaded screw bearing assembly 1154 is installed on the fourth guide rod mounting plate 1155, passing through the third bearing mounting plate 1151 and the fourth bearing mounting plate 1152. The positive and negative threaded screw bearing assembly 1154 mainly includes a positive and negative threaded screw. Both ends of the screw are connected to the third bearing mounting plate 1151 and the fourth bearing mounting plate 1152 respectively through bearings. The two ends of the screw of the positive and negative threaded screw bearing assembly 1154 are also rotatably connected to the third guide rod mounting plate 1153 and the fourth guide rod mounting plate 1155 respectively. A second handwheel 1156 is provided on one end of the positive and negative threaded screw bearing assembly 1154. The structural design of the centering adjustment part 115 allows the distance between the first box-opening part 113 and the centering adjustment part 115 to be adjustable to be the same as the distance between the second box-opening part and the centering adjustment part 115, so that the first box-opening part 113 and the second box-opening part 114 are aligned on a diagonal in a positive direction. This satisfies the need to open boxes of different sizes and has strong versatility.

[0099] Specifically, the height adjustment unit 116 includes a second double guide rod bearing assembly 1160. In this embodiment, the second double guide rod bearing assembly 1160 includes two guide rod bearing assemblies arranged in parallel. The structure of each guide rod bearing assembly is the same as that of the first guide rod bearing assembly 639 in the injection conveying mechanism 63. In other embodiments, the second double guide rod bearing assembly 1160 may also be configured to have the same structure as the first double guide rod bearing assembly 1150, so it is not limited thereto. The lower end of the second double guide rod bearing assembly 1160 is provided with a fifth bearing mounting plate 1161, which is connected and installed with the third guide rod mounting plate 1153. The upper end of the second double guide rod bearing assembly 1160 is connected with a mounting base 1162. The second lead screw bearing assembly 1163 is installed vertically through the mounting base 1162 and the fifth bearing mounting plate 1161. The second lead screw bearing assembly 1163 has the same structure as the first lead screw bearing assembly 6305. The upper end of the lead screw of the second lead screw bearing assembly 1163 is provided with a helical gear 1164. The third helical gear shaft 1165 is connected horizontally through the mounting base 1162. The helical gear 1164 of the second lead screw bearing assembly 1163 is meshed with the third helical gear shaft 1165. A third handwheel 1166 is provided on one end of the third helical gear shaft 1165. The height of the centering adjustment part 115, the first clamping guide rod 111, the second clamping guide rod 112, the first box-opening part 113 and the second box-opening part 114 are adjusted by turning the third handwheel 1166 to adapt to opening boxes of different heights, thereby achieving the purpose of strong versatility.

[0100] Reference Figure 19 As shown, the packing and positioning mechanism 8 includes two parallel first outbound chain conveyor assemblies 81 and 82. A first linkage shaft 83 is connected to the same end of both assemblies 81 and 82, and a second linkage shaft 84 is connected to the other end of both assemblies 81 and 82. A packing platform 85 is provided between the first and second outbound chain conveyor assemblies 81 and 82. On the side of 82 facing away from the box-feeding mechanism 7, a third servo motor 86 and a fifth limiting guide assembly 87 are respectively provided. The output end of the third servo motor 86 is provided with a first reducer 88. The third servo motor 86 is connected to the first linkage shaft 83 through the first reducer 88. The first box-out chain conveyor assembly 81 and the second box-out chain conveyor assembly 82 are respectively provided with one or more roller mounting parts 89. A pusher roller 80 is connected between the opposing roller mounting parts 89 on the first box-out chain conveyor assembly 81 and the second box-out chain conveyor assembly 82. The first box-out chain conveyor assembly 81 and the second box-out chain conveyor assembly 82 each include two sprockets and a chain connecting the two sprockets.

[0101] Reference Figures 20 to 21 As shown, the packing mechanism 10 includes a first linear module 101 and a second linear module 102 arranged in parallel. A third linkage shaft 103 is connected to the same end of both the first linear module 101 and the second linear module 102. The first linear module 101 is linked to the second linear module 102 via the third linkage shaft 103. A fourth servo motor 104 is connected to one end of the first linear module 101. A third linear module 105 is connected across the first linear module 101 and the second linear module 102. A fifth servo motor 106 is located on one side of one end of the third linear module 105. The output end of motor 106 is equipped with a second coupling 107. The fifth servo motor 106 is connected to the third linear module 105 via the second coupling 107. The third linear module 105 is equipped with a slide 108. A fourth linear module 109 is located on one side of the slide 108. A sixth servo motor 100 is located on the slide 108. The sixth servo motor 100 is connected to the fourth linear module 109 via a third coupling 1001 and a belt conveyor assembly 1002. The lower end of the fourth linear module 109 is connected to a negative pressure suction box 1004. The negative pressure suction box 1004 has one or more suction nozzles 1005. The suction nozzles 1005 are connected to a vacuum mechanism 28 located on the top of the packing frame 30 via vacuum pipes. The vacuum mechanism 28 mainly includes a vacuum pump and a gas storage tank, etc. Its specific structure and working principle are common knowledge and will not be explained in detail here.

[0102] Specifically, the first linear module 101, the second linear module 102, and the third linear module 105 are all commonly used components in mechanical design, and their specific structures and working principles are common knowledge, so they will not be explained in detail here. In this embodiment, the first linear module 101, the second linear module 102, and the third linear module 105 can all be belt linear modules or synchronous belt linear modules. In other embodiments, the first linear module 101, the second linear module 102, and the third linear module 105 can also be ball screw type linear modules, so this is not a limitation.

[0103] Reference Figure 22As shown, the transplanting mechanism 12 includes a transplanting conveyor frame 120. Transplanting chain conveyor assemblies 121 are respectively provided on both sides of the transplanting conveyor frame 120. The structure of the transplanting chain conveyor assembly 121 is the same as that of the first or second out-of-box chain conveyor assembly 81. A second rotating shaft 122 is provided at one end of the transplanting conveyor frame 120, and the transplanting conveyor frame 120 is rotatably connected to the second rotating shaft 122. The sprockets at the same end of the two transplanting chain conveyor assemblies 121 are respectively connected and installed to the second rotating shaft 122. Transplanting bearing seats 123 are respectively provided at both ends of the second rotating shaft 122, and the two transplanting bearing seats 123 rotate with the second rotating shaft 122. The transplanter conveyor 120 is connected to a fourth linkage shaft 124 at one end. The transplanter conveyor 120 is rotatably connected to the fourth linkage shaft 124. The sprockets at the other ends of the two transplanter chain conveyor assemblies 121 are respectively connected and installed to the fourth linkage shaft 124. A seventh servo motor 125 is provided on the outside of one of the transplanter chain conveyor assemblies 121. A second reducer 126 is provided at the output end of the seventh servo motor 125. The seventh servo motor 125 is connected and installed to the fourth linkage shaft 124 through the second reducer 126. A transplanter sinking cylinder 127 is provided below the other end of the transplanter conveyor 120. The output end of the transplanter sinking cylinder 127 is rotatably connected to the transplanter conveyor 120. Two transplanter bearing seats 123 and the transplanter sinking cylinder 127 are respectively installed on the packing frame 30. A transplanter guide plate 128 is also provided on one side of the transplanter chain conveyor assembly 121 to guide the conveying of full boxes. The structural design of the transplanting mechanism 12 enables automatic connection between the box-packing and positioning mechanism 8 and the lower full-box roller line 2, thus automating the efficient transfer of full boxes to the lower full-box roller line 2 for collection and transfer.

[0104] Reference Figure 23 As shown, the upper empty box roller conveyor 1 and each empty box dispensing mechanism 4 are respectively equipped with a forced stop photoelectric sensor 14, a box arrival photoelectric sensor 15, and a box dispensing blocker 16 at their corresponding positions. The upper empty box roller conveyor 1, which receives and stores empty boxes, is equipped with a backlog photoelectric sensor 17, a storage photoelectric sensor 18, and a storage blocker 19 in sequence. The above design enables a continuous and sufficient supply of boxes to multiple case packing machines 3 using only one upper empty box roller conveyor 1, ensuring that the case packing machines 3 pack boxes efficiently and continuously, thus solving the problem that existing case packing production lines require multiple case packing machines 3 to be equipped with multiple packaging box conveyor lines.

[0105] Specifically, when the upper empty box roller conveyor 1 starts working, the storage blocker 19 blocks the first empty box to store it; when empty boxes are delivered to each empty box distribution mechanism 4, the storage blocker 19 releases the empty boxes; when empty boxes are stored in the middle and lower space positions of all empty box distribution mechanisms 4, the empty box distribution mechanism 4 does not pick up empty boxes from the upper empty box roller conveyor 1; when the box arrival photoelectric sensor 15 and the forced stop photoelectric sensor 14 corresponding to any empty box distribution mechanism 4 simultaneously detect an empty box, the upper empty box roller conveyor 1 stops conveying empty boxes; when the accumulation photoelectric sensor 17 detects an empty box, the delivery of boxes to the upper empty box roller conveyor 1 stops.

[0106] Reference Figure 23 As shown, the lower full-box roller conveyor 2 and the transplanting mechanism 12 are respectively equipped with a full-box stopper 20 and a full-box conveying photoelectric sensor 21. The above design enables the collection and conveying of full boxes from multiple transplanting mechanisms 12 using only one lower full-box roller conveyor 2, and ensures that the lower full-box roller conveyor 2 conveys full boxes smoothly without stagnation and the full-box recycling is highly efficient. This solves the problem that multiple box packing machines 3 of the existing box packing production line must be equipped with multiple full-box product conveying lines 6.

[0107] Specifically, when the transplanting mechanism 12 needs to transplant a full box to the lower full box roller conveyor 2, the full box blocker 20 blocks the full box conveyed by the lower full box roller conveyor 2. After the lower full box roller conveyor 2 receives the full box transplanted by the transplanting mechanism 12 and starts conveying, the full box blocker 20 releases the full box that was currently blocked. When the current full box conveying photoelectric sensor 21 detects that a full box is being conveyed at the corresponding position on the lower full box roller conveyor 2, the transplanting mechanism 12 stops transplanting full boxes to the lower full box roller conveyor 2. After the full box passes the current full box conveying photoelectric sensor 21, the full box blocker 20 blocks the subsequent full boxes conveyed. The transplanting mechanism 12 resumes transplanting full boxes to the lower full box roller conveyor 2. After the lower full box roller conveyor 2 receives the full box transplanted by the transplanting mechanism 12 and starts conveying, the full box blocker 20 releases the subsequent full boxes conveyed by the lower full box roller conveyor 2.

[0108] Reference Figure 24 As shown, the inlet blocker 77, the outlet blocker 16, the storage blocker 19, and the full box blocker 20 all include a blocking cylinder 22 and a box baffle 23. The box baffle 23 is located on the output end of the blocking cylinder 22. The blocking cylinder 22 raises the box baffle 23 to block empty or full boxes.

[0109] Reference Figure 25As shown, the first limiting guide assembly 615, the second limiting guide assembly 625, the third limiting guide assembly 72, the fourth limiting guide assembly 74, and the fifth limiting guide assembly 87 all include a limiting bracket 24. A second crossbar 25 is provided at the upper end of the movable through limiting bracket 24. A movable guide plate 26 is provided at one end of the second crossbar 25. A locking bolt 27 is provided at the upper end of the limiting bracket 24. Adjusting the length of the second crossbar 25 extending from the limiting bracket 24 adjusts the movable guide plate 26 to limit the box. Tightening the locking bolt 27 fixes the second crossbar 25 to prevent it from loosening.

[0110] Reference Figures 1 to 25 As shown, the present invention also provides a packing process for an intelligent empty box delivery and packing line: the packaged product 13 is conveyed through the product conveyor line 6 in each packing machine 3. The weighing conveyor 61 of the product conveyor line 6 can measure packaged products 13 of different lengths by adjusting the distance between the first photoelectric sensor 617 and the second photoelectric sensor 618. By measuring the length and weight of the packaged product 13, it is determined whether the packaged product 13 meets the packing requirements. When the packaged product 13 that does not meet the requirements is conveyed from the weighing conveyor 61 to the rejection conveyor line 621 of the rejection conveyor 62, the rejection cylinder 623 of the rejection conveyor 62 pulls the rejection conveyor line 621 to swing downward around the first rotating shaft 622, so that the packaged product 13 that does not meet the requirements is unloaded and rejected by the rejection conveyor line 621. When a qualified packaged product 13 is conveyed from the weighing conveyor 61 into the rejection conveyor 62, the qualified packaged product 13 is conveyed via the rejection conveyor line 621 of the rejection conveyor 62 into the injection conveyor belt line 6302 of the injection conveyor 63. The injection conveyor 63 can adjust the product conveying orientation of the packaged product 13 with the side conveyor belt line 6308 as a reference and close to the side conveyor belt line 6308. The injection conveyor belt line 6302 and the side conveyor belt line 6308 work together to increase the friction with the packaged product 13, so that the packaged product 13 can be quickly conveyed to the dual servo feeding mechanism 5, which ensures that the packaged product 13 is conveyed to the dual servo feeding mechanism 5 in place. The first circulation line 51 and the second circulation line 52 of the dual servo material handling mechanism 5 respectively receive the packaged products 13 from the injection conveyor 63 in a sequential cycle, and group the packaged products 13. In this way, the packaged products 13 can be received continuously and the received packaged products 13 can be grouped and assembled to prepare materials for the boxing mechanism 10.

[0111] While the packaged product 13 is being fed, empty boxes are being conveyed via the upper empty box roller conveyor 1. As the upper empty box roller conveyor 1 conveys empty boxes past each empty box distribution mechanism 4, the pusher frame 46 of each empty box distribution mechanism 4, driven by the pusher cylinder 45, pushes the empty boxes from the upper empty box roller conveyor 1 into the upper space of the box drop support 40. When the upper opening / closing mechanism 47 and the middle opening / closing mechanism 48 release their support for the empty boxes, the empty boxes fall into the lower space of the box drop support 40 and are positioned on the box infeed mechanism 7. The empty boxes are then conveyed via the box infeed roller conveyor 71 of the box infeed mechanism 7 to the bottom of the pusher mechanism 9 for storage before the packaged product 13 is packed. Driven by the second servo motor 92, the pusher plate 90 of the pusher mechanism 9 pushes the empty boxes from the box infeed roller conveyor 71 into the box packing positioning mechanism 8, preparing for the box packing operation of the packaged product 13. This achieves on-demand and orderly box supply to the box packing positioning mechanism 8. The fifth limiting guide component 87 of the box-packing positioning mechanism 8 provides a limiting reference positioning for the empty box pushed from the box-pushing mechanism 9 and limits the empty box through the box-pushing roller 80. At the same time, the first box-opening part 113 and the second box-opening part 114 of the box-opening mechanism 11 open the box lids on the two adjacent sides of the two diagonal corners of the empty box, so as to realize the automatic opening of the empty box from the top. Then, the suction nozzle 1005 of the box-packing mechanism 10 picks up the packaged product 13 from the dual servo feeding mechanism 5 and places it into the empty box on the box-packing positioning mechanism 8, thus automatically packing the packaged product 13. When an empty box is filled with packaged product 13 (referred to as a full box), the box-pushing roller 80 of the box-positioning mechanism 8 rotates under the drive of the third servo motor 86 to convey the full box to the two parallel transplanting chain conveyor assemblies 121 of the transplanting mechanism 12. The seventh servo motor 125 of the transplanting mechanism 12 drives the two transplanting chain conveyor assemblies 121 to convey the full box to the upper part of the lower full box roller line 2 through the second reducer 126 and the fourth linkage shaft 124. The transplanting sinking cylinder 127 drives the transplanting conveyor frame 120 to swing downward around the second rotating shaft 122. The two transplanting chain conveyor assemblies 121 then descend and are lower than the lower full box roller line 2, so that the full box is conveyed to the lower full box roller line 2. The lower full box roller line 2 realizes the collection and conveying of full boxes conveyed from multiple transplanting mechanisms 12, so that it realizes the automated unloading and recycling of full boxes.

[0112] Its overall structural design enables automatic feeding and conveying of empty boxes and packaged products 13 on a single delivery line; automatic detection of the length and weight of the conveyed packaged products 13; automatic removal and rejection of packaged products 13 that do not meet the requirements; automatic grouping and collection of packaged products 13 that meet the requirements; automatic storage of empty boxes; automatic orderly supply of empty boxes according to the detected shortage status; automatic positioning of empty boxes before packing; automatic unpacking of empty boxes; automatic filling of empty boxes with packaged products 13; and automatic collection, conveying, unloading, and recycling of full boxes filled with packaged products 13. It not only achieves automatic unpacking of empty boxes from the top and automatic loading of packaged products 13 from the top of empty boxes without the need for additional structures to adjust the orientation of empty boxes, but also eliminates the need for multiple packaging box conveyors on the entire packing line. The conveyor line and multiple full-box product conveyor lines simplify the structure, reduce the footprint, and lower costs. They offer advantages such as neat packing, good packing effect, high packing efficiency, and high full-box recycling efficiency for packaged products 13. Furthermore, they are suitable for inspecting packaged products 13 of different lengths and for opening boxes of different sizes, achieving strong versatility and further reducing production costs. This not only solves the problems of complex structure, large footprint, and high production costs associated with current box-packing lines where each box-packing machine must be equipped with a box conveyor line, a box opener, a packaged product conveyor line, and a full-box product conveyor line, but also addresses the issues of uneven packing, low packing efficiency, and poor packing effect caused by current box openers that can only pack empty boxes from the side.

[0113] The above embodiments are merely examples of the present invention and are not intended to limit the implementation and scope of the present invention. All technical solutions that are the same as or equivalent to the contents described in the claims of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent empty box delivery and packing line, characterized in that: It includes an upper empty box roller conveyor, below which is a lower full box roller conveyor. Several case packers are located on the same side of the upper empty box roller conveyor and the lower full box roller conveyor. An empty box distribution mechanism is set between the upper empty box roller conveyor and each case packer. The upper empty box roller conveyor supplies empty boxes and conveys them to the corresponding case packers. The case packers pack the empty boxes into boxes. The lower full box roller conveyor gathers and conveys the full boxes transferred from each case packer. The case packing machine includes a case packing frame, within which is a dual-servo material handling mechanism for receiving and grouping packaged products. A product conveyor line is located on one side of the dual-servo material handling mechanism, conveying packaged products to it. On the other side of the dual-servo material handling mechanism are a case feeding mechanism and a case positioning mechanism, which are adjacent and connected. Above the case feeding mechanism is a case pushing mechanism, which receives empty cases from an empty case distribution mechanism. The case pushing mechanism conveys the empty cases to the case positioning mechanism. At the top of the case packing frame is a case packing mechanism, and above the case positioning mechanism is a case opening mechanism for opening empty cases. The case opening mechanism opens the empty cases on the case positioning mechanism, and the case packing mechanism picks up packaged products from the dual-servo material handling mechanism and loads them into the empty cases. A transfer mechanism is located on one side of the case packing mechanism, pushing the cases filled with packaged products from the case positioning mechanism to the transfer mechanism, which then conveys the cases filled with packaged products to the lower full-case roller line. The product conveying line includes a weighing conveyor, a rejection conveyor, and an injection conveyor, which are connected in sequence. The weighing conveyor weighs the packaged products, the rejection conveyor removes and rejects non-compliant packaged products, and the injection conveyor quickly transfers the packaged products to the dual-servo material handling mechanism. The injection conveying mechanism includes a tilt adjustment frame. Two universal feet are provided under one side of the tilt adjustment frame. Each universal foot is provided with a clamping component. Positioning seats are provided on the same side of the two clamping components. A lead screw connecting rod is provided through the two positioning seats. A locking device is provided on the positioning seat to lock the lead screw connecting rod. A first positive and negative thread connecting rod assembly is connected between each positioning seat and the other side of the tilt adjustment frame. Twisting the first positive and negative thread connecting rod assembly can adjust the tilt of the tilt adjustment frame along the conveying direction of the packaged product. The tilt adjustment frame has a first bearing mounting plate on one side. First guide rod bearing assemblies are respectively mounted on both ends of the first bearing mounting plate. The upper ends of the guide rods of the two first guide rod bearing assemblies are connected to the first guide rod mounting plate. The tilt adjustment frame is connected and installed to the first bearing mounting plate of the first guide rod bearing assembly. An injection conveyor belt is located above the tilt adjustment frame. One end of the injection conveyor belt is hinged to the first guide rod mounting plate via a hinge, and the other end of the injection conveyor belt is connected to the first bearing mounting plate via a second positive and negative thread connecting rod assembly. A first lead screw bearing assembly is installed through the first bearing mounting plate. The upper end of the lead screw of the first lead screw bearing assembly is rotatably connected to the first guide rod mounting plate. The lower end of the lead screw of the assembly is provided with a first handwheel. Rotating the first handwheel can raise or lower the first guide rod mounting plate. Raising or lowering the first guide rod mounting plate can adjust the lateral tilt of the injected conveyor belt. The guide rods of the two first guide rod bearing assemblies are jointly fitted with a positioning lock. The positioning lock is located between the first guide rod mounting plate and the first bearing mounting plate. The lead screw of the first lead screw bearing assembly moves through the middle of the positioning lock. The positioning lock locks the guide rods of the two first guide rod bearing assemblies on the first bearing mounting plate to fix the lateral tilt of the injected conveyor belt. The other end of the injected conveyor belt is provided with a side-standing conveyor belt, which is perpendicular to the injected conveyor belt.

2. The intelligent empty box delivery and packing line according to claim 1, characterized in that: The weighing conveying mechanism includes a weighing bracket, a weighing sensor on the top surface of the upper end of the weighing bracket, a weighing conveying line on the weighing sensor, a first fixed guide plate on one side of the weighing conveying line, a first limiting guide assembly on the other side of the weighing conveying line, a positioning adjustment rod above the weighing conveying line, and a first photoelectric sensor and a second photoelectric sensor on the positioning adjustment rod. The rejection conveying mechanism includes a rejection bracket, a rejection conveying line on the rejection bracket, a first rotating shaft at one end of the rejection conveying line, the rejection conveying line being rotatably connected to the rejection bracket through the first rotating shaft, a rejection cylinder on the rejection bracket, the cylinder body of the rejection cylinder being rotatably connected to one side of the rejection bracket, the output end of the rejection cylinder being rotatably connected to the bottom of the rejection conveying line, a second fixed guide plate on one side of the rejection conveying line, and a second limiting guide assembly on the other side of the rejection conveying line.

3. The intelligent empty box delivery and packing line according to claim 1, characterized in that: The dual-servo feeding mechanism includes a first circulation line and a second circulation line. The first circulation line includes a feeding circulation conveyor line, and a first servo motor is connected to one side of the feeding circulation conveyor line. The structure of the second circulation line is the same as that of the first circulation line. The structure of the second circulation line is opposite to that of the first circulation line. The second circulation line and the first circulation line convey packaged products in the same direction. The surfaces of the first and second circulation lines are each provided with a material handling support plate and several material handling dividers. The material handling support plates and material handling dividers on the first and second circulation lines are arranged in the same orientation. A product baffle is provided on one side of the second circulation line to block and limit the packaged products that are conveyed. The material handling support plate includes a first mounting part and a support part, which are perpendicular to each other and integrally formed. The support part extends obliquely upward to provide a support part for supporting the packaged product. The material handling divider includes a second mounting part, which extends laterally and vertically to provide a dividing part. The second mounting part and the dividing part are integrally formed.

4. The intelligent empty box delivery and packing line according to claim 1, characterized in that: The empty carton dispensing mechanism includes a carton dropping bracket. A second bearing mounting plate is located at the upper end of the dropping bracket. Second guide rod bearing assemblies are respectively mounted on both ends of the second bearing mounting plate. One end of the guide rods of the two second guide rod bearing assemblies is connected to a carton pushing cylinder mounting plate, and the other end of the guide rods of the two second guide rod bearing assemblies is connected to the second guide rod mounting plate. A carton pushing cylinder is mounted on the carton pushing cylinder mounting plate, and the output end of the carton pushing cylinder is connected to the second bearing mounting plate. A carton pushing frame is connected to the lower end of the second bearing mounting plate. The carton pushing cylinder drives the second bearing mounting plate to move, and the second bearing mounting plate drives the carton pushing frame to push the empty carton into the dropping bracket. Within the upper space of the rack, upper and middle opening / closing mechanisms are respectively installed on both sides of the middle section of the box-dropping support, from high to low. The two upper opening / closing mechanisms are arranged opposite each other, supporting and storing empty boxes within the upper space of the box-dropping support. Similarly, two middle opening / closing mechanisms are arranged opposite each other, supporting and storing empty boxes within the middle space of the box-dropping support. A middle-layer photoelectric sensor is installed in the middle of the box-dropping support to detect whether there are empty boxes stored in the middle space. A lower-layer photoelectric sensor is installed at the lower end of the box-dropping support to detect whether there are empty boxes stored in the lower space. The upper opening and closing mechanism includes an upper opening and closing cylinder and an upper support plate. The output end of the upper opening and closing cylinder is rotatably connected to one end of the upper support plate. An upper rotating shaft frame is provided on the same end of one end of the upper support plate. The upper rotating shaft frame has a U-shaped design. An upper opening and closing rotating shaft is provided at the upper end of the upper rotating shaft frame. Upper bearing seats are respectively fitted at both ends of the upper opening and closing rotating shaft. The upper opening and closing cylinder drives the upper support plate to rotate around the upper opening and closing rotating shaft. A roller mounting plate extends laterally from the other end of the upper support plate. There is one or more rollers on the roller mounting plate. The middle layer opening and closing mechanism includes a middle layer opening and closing cylinder and a middle layer support plate. The output end of the middle layer opening and closing cylinder is rotatably connected to one end of the middle layer support plate. A middle layer rotating shaft frame is provided on the same end of one end of the middle layer support plate. The middle layer rotating shaft frame has a U-shaped design. A middle layer opening and closing rotating shaft is provided at the upper end of the middle layer rotating shaft frame. Middle layer bearing seats are respectively fitted at both ends of the middle layer opening and closing rotating shaft. A trailer section extends laterally from the other end of the middle layer support plate. The trailer section has an L-shaped design.

5. The intelligent empty box delivery and packing line according to claim 1, characterized in that: The box feeding mechanism includes a box feeding roller line. A third limiting guide component and a third photoelectric sensor are provided on one side of the box feeding roller line, and a fourth limiting guide component is provided on the other side of the box feeding roller line. A reference plate and a fourth photoelectric sensor are provided at the end of the box feeding roller line along the empty box conveying direction. A box feeding blocker is provided below the box feeding roller line. The pusher mechanism includes a first ball screw module. A push plate is provided on one side of the sliding part of the first ball screw module. A second servo motor is provided on one side of one end of the first ball screw module. A first coupling is provided at the output end of the second servo motor. The second servo motor is connected to the first ball screw module through the first coupling.

6. The intelligent empty box delivery and packing line according to claim 1, characterized in that: The box-opening mechanism includes a first clamping guide rod and a second clamping guide rod arranged in parallel. A first box-opening section is located at one end of the first clamping guide rod, and a second box-opening section is located at one end of the second clamping guide rod. The first and second box-opening sections are staggered. A centering adjustment section is connected across the first and second clamping guide rods. The first clamping guide rod is connected to the third bearing mounting plate of the centering adjustment section, and the second clamping guide rod is connected to the fourth bearing mounting plate of the centering adjustment section. A height adjustment section is located at one end of the centering adjustment section and is connected to the third guide rod mounting plate of the centering adjustment section. A lifting guide rod is located at the other end of the centering adjustment section and is connected to the fourth guide rod mounting plate of the centering adjustment section. The height adjustment section adjusts the height of the centering adjustment section, thereby adjusting the height of the first and second clamping guide rods, ultimately achieving the adjustment of the height of the first and second box-opening sections. The lifting guide rod guides the height adjustment. The first box-opening section includes a box-opening frame, within which a first helical gear shaft and a second helical gear shaft are disposed. The first and second helical gear shafts are rotatably connected to the box-opening frame, perpendicular to each other and meshing. The first helical gear shaft passes through the box-opening frame, with a first opening plate at one end and a box-opening swing rod connected to the other end. A second opening plate is disposed at the end of the second helical gear shaft away from the first helical gear shaft. A box-opening cylinder is disposed on one outer side of the box-opening frame, with its output end rotatably connected to the box-opening swing rod. The box-opening cylinder pulls the box-opening swing rod, which drives the first helical gear shaft to rotate. The first and second helical gear shafts mesh and transmit power. The first and second opening plates swing downward synchronously to open the box covers on adjacent sides of one corner of the empty box. The structure and working principle of the second box-opening section are the same as those of the first box-opening section. The centering adjustment part includes a first double guide rod bearing assembly. The first double guide rod bearing assembly is connected to a third bearing mounting plate and a fourth bearing mounting plate at both ends. The two ends of the two guide rods of the first double guide rod bearing assembly are connected to the third guide rod mounting plate and the fourth guide rod mounting plate, respectively. A lifting guide rod is provided on the fourth guide rod mounting plate. A positive and negative thread screw bearing assembly is installed through the third bearing mounting plate and the fourth bearing mounting plate. The two ends of the thread screw of the positive and negative thread screw bearing assembly are rotatably connected to the third guide rod mounting plate and the fourth guide rod mounting plate, respectively. A second handwheel is provided on one end of the positive and negative thread screw bearing assembly. The height adjustment unit includes a second double guide rod bearing assembly. The lower end of the second double guide rod bearing assembly is provided with a fifth bearing mounting plate, which is connected and installed with a third guide rod mounting plate. The upper end of the second double guide rod bearing assembly is connected with a mounting base. A second lead screw bearing assembly is installed through the mounting base and the fifth bearing mounting plate. The upper end of the lead screw of the second lead screw bearing assembly is provided with a helical gear. A third helical gear shaft is connected to the horizontal mounting base. The helical gear of the second lead screw bearing assembly is meshed with the third helical gear shaft. A third handwheel is provided on one end of the third helical gear shaft.

7. The intelligent empty box delivery and packing line according to claim 1, characterized in that: The box-packing and positioning mechanism includes two parallel first and second box-out chain conveyor assemblies. A first linkage shaft is connected to the same end of both assemblies, and a second linkage shaft is connected to the other end of both assemblies. A box-packing platform is provided between the first and second assemblies. A third servo motor and a fifth limiting guide assembly are provided on the side of the second assembly facing away from the box-in mechanism. A first reducer is provided at the output end of the third servo motor, which is connected to the first linkage shaft via the first reducer. One or more roller mounting components are respectively provided on the first and second assemblies, and a pusher roller is connected between the opposing roller mounting components on the first and second assemblies. The packing mechanism includes a first linear module and a second linear module arranged in parallel. The first linear module and the second linear module are connected to a third linkage shaft at the same end. The first linear module is linked to the second linear module through the third linkage shaft. A fourth servo motor is connected to one end of the first linear module. A third linear module is connected across the first linear module and the second linear module. A fifth servo motor is provided on one side of one end of the third linear module. A second coupling is provided at the output end of the fifth servo motor. The fifth servo motor is connected to the third linear module through the second coupling. A slide is provided on the third linear module. A fourth linear module is provided on one side of the slide. A sixth servo motor is provided on the slide. The sixth servo motor is connected to the fourth linear module through the third coupling and a belt conveyor assembly. A negative pressure suction box is connected to the lower end of the fourth linear module. The negative pressure suction box has one or more suction nozzles.

8. The intelligent empty box delivery and packing line according to claim 1, characterized in that: The transplanting mechanism includes a transplanting conveyor frame, with transplanting chain conveyor assemblies on both sides. A second rotating shaft is located at one end of the transplanting conveyor frame, rotatably connected to it. Sprockets at the same end of the two transplanting chain conveyor assemblies are connected to the second rotating shaft. Transplanting bearing seats are located at both ends of the second rotating shaft, rotatably connected to it. A fourth linkage shaft is located at the other end of the transplanting conveyor frame, rotatably connected to it. Sprockets at the other ends of the two transplanting chain conveyor assemblies are connected to the fourth linkage shaft. A seventh servo motor is located on the outside of one of the transplanting chain conveyor assemblies. A second reducer is located at the output end of the seventh servo motor, connected to the fourth linkage shaft via the second reducer. A transplanting sinking cylinder is located below the other end of the transplanting conveyor frame, rotatably connected to it.

9. The intelligent empty box delivery and packing line according to claim 1, characterized in that: The upper empty box roller conveyor and each empty box dispensing mechanism are respectively equipped with a strong stop photoelectric sensor, a box arrival photoelectric sensor and a box dispensing blocker at their respective positions. The upper empty box roller line is equipped with a stacking photoelectric sensor, a storage box photoelectric sensor and a storage box blocker at one end, respectively, to receive and store empty boxes. When the upper empty box roller conveyor starts working, the storage blocker blocks the first empty box to store it. When empty boxes are delivered to each empty box distribution mechanism, the storage blocker releases the empty boxes. When empty boxes are stored in the middle and lower spaces of all empty box distribution mechanisms, the empty box distribution mechanism does not pick up empty boxes from the upper empty box roller conveyor. When the arrival photoelectric sensor and the forced stop photoelectric sensor corresponding to any empty box distribution mechanism detect an empty box at the same time, the upper empty box roller conveyor stops conveying empty boxes. When the backlog photoelectric sensor detects an empty box, it stops delivering boxes to the upper empty box roller conveyor. The lower-level full-box roller conveyor and the transplanting mechanism are respectively equipped with full-box stoppers and full-box conveying photoelectric sensors at their corresponding positions. When the transplanting mechanism needs to transplant a full box to the lower full box roller conveyor, the full box blocker blocks the full box being transported by the lower full box roller conveyor. After the lower full box roller conveyor receives the full box transplanted by the transplanting mechanism and starts transporting, the full box blocker releases the full box that was currently blocked. When the current full box conveying photoelectric sensor detects that a full box is being transported at the corresponding position on the lower full box roller conveyor, the transplanting mechanism pauses transplanting full boxes to the lower full box roller conveyor. After the full box passes the current full box conveying photoelectric sensor, the full box blocker blocks the subsequent full boxes being transported. The transplanting mechanism resumes transplanting full boxes to the lower full box roller conveyor. After the lower full box roller conveyor receives the full box transplanted by the transplanting mechanism and starts transporting, the full box blocker releases the subsequent full boxes being transported by the lower full box roller conveyor.

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