Full-automatic box sticking and inserting machine and paper box positioning method

Abstract

The application discloses a full-automatic cartoning machine and a carton positioning method, which comprises a ring-shaped conveying mechanism, a plurality of carriers, a sheet storing mechanism and a carton folding mechanism. The sheet storing mechanism and the carton folding mechanism are sequentially arranged along the conveying direction of the carton. The plurality of carriers are slidingly arranged on the ring-shaped conveying mechanism. The carriers are provided with clamping mechanisms for clamping the cartons output by the sheet storing mechanism. The carriers drive the cartons to pass through the carton folding mechanism through the ring-shaped conveying mechanism, so that the carton folding mechanism performs the carton sticking or inserting action on the cartons. A plurality of positioning detection modules are arranged on the clamping mechanisms. When the clamping mechanisms clamp the cartons, the size data of the current cartons are detected through the plurality of positioning detection modules, so that the size of the working positions of the sheet storing mechanism, the carton folding mechanism and the clamping mechanism is adjusted to be matched with the size of the current cartons. The application realizes the rapid and accurate collection of the size parameters of different specifications of cartons, cooperates with various mechanisms to complete corresponding adjustment, does not need manual intervention, and greatly shortens the machine adjusting time of specification switching.

Description

Technical Field

[0001] This invention relates to the technical field of packaging equipment, and in particular to a fully automatic cartoning machine for gluing and inserting boxes, and a method for positioning paper boxes. Background Technology

[0002] Tubular packaging boxes are widely used in product packaging. They are typically folded from a single sheet of cardboard, forming a cylindrical structure open at both ends, suitable for containing products such as food, daily chemicals, pharmaceuticals, and toys. Currently, the folding and forming of tubular packaging boxes mainly relies on manual labor or semi-automatic equipment. Manual operation is not only labor-intensive and inefficient, but while semi-automatic equipment improves efficiency to some extent, it often requires highly experienced operators to manually adjust numerous mechanisms on the equipment to accommodate the new box specifications. Each adjustment process can take 2-4 hours, severely impacting production continuity, increasing equipment downtime, and demanding extremely high operator skills, making it difficult to quickly adapt to the needs of small-batch, multi-variety production. Furthermore, manual adjustments have shortcomings in areas such as cardboard box conveying, positioning, and folding accuracy. Inaccurate cardboard box positioning can lead to folding deviations, affecting product quality stability and increasing the defect rate. Summary of the Invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide a fully automatic cartoning machine and a carton positioning method for gluing and inserting boxes. The machine has a high degree of automation and can quickly and accurately collect the size parameters of different specifications of cartons and coordinate with each actuator to complete the corresponding adjustment actions without manual intervention, thus greatly shortening the machine setup time for specification switching.

[0004] To achieve the above objectives, this invention discloses a fully automatic cartoning machine for gluing and inserting boxes, comprising a ring conveying mechanism, several carriers, a cardboard storage mechanism, and a box folding mechanism. The cardboard storage mechanism and the box folding mechanism are arranged sequentially along the conveying direction of the cardboard box. The several carriers are slidably disposed on the ring conveying mechanism. Each of the several carriers is provided with a clamping mechanism for clamping the cardboard box output by the cardboard storage mechanism. The ring conveying mechanism drives the carriers to move the cardboard box through the box folding mechanism, so that the box folding mechanism performs gluing or box insertion actions on the cardboard box. The clamping mechanism includes a fixed clamping rod, a first movable clamping rod, a second movable clamping rod, and a third movable clamping rod. The fixed clamping rod is fixedly mounted on the carrier. The first movable clamping rod is slidably mounted on one side of the fixed clamping rod along the X-axis. The second movable clamping rod is slidably mounted on the carrier along the Y-axis relative to the fixed clamping rod. The third movable clamping rod is slidably mounted at the intersection of the first and second movable clamping rods along the X and Y axes. Furthermore, the carrier is orthogonally slidably provided with an X-axis slide block and a Y-axis slide block. The first movable clamping rod is fixedly mounted on the X-axis slide block, the third movable clamping rod is slidably mounted on the X-axis slide block and slidably engaged with the Y-axis slide block, and the second movable clamping rod is fixedly mounted on the Y-axis slide block. The first and third movable clamping rods are driven to move along the X-axis direction by the X-axis linear module, and the second and third movable clamping rods are driven to move along the Y-axis direction by the Y-axis linear module, so that the fixed clamping rod, the first movable clamping rod, the second movable clamping rod, and the third movable clamping rod enclose a clamping space for clamping the cardboard box. One of the clamping mechanisms is provided with a plurality of positioning detection modules, which are respectively disposed on the first movable clamping rod, the second movable clamping rod and the third movable clamping rod. When the clamping mechanism clamps the cardboard box, it outputs detection data of the corresponding position through the plurality of positioning detection modules to obtain the length, width and height dimensions of the current cardboard box, so that the working dimensions of the storage mechanism, the folding mechanism and the clamping mechanism are adjusted to match the dimensions of the current cardboard box.

[0005] Furthermore, a first base plate is fixedly disposed on the upper outer side of the annular conveying mechanism, and a second base plate is slidably disposed on the upper inner side of the annular conveying mechanism. A conveying channel for the clamping mechanism to pass through is provided between the first base plate and the second base plate. The second base plate is driven to move horizontally by a sliding drive device to adjust the distance between it and the first base plate according to the size of the paper box.

[0006] Furthermore, the inner side of the annular conveyor mechanism is provided with a sliding contact line, and the bottom of each of the plurality of carriers is respectively fixedly provided with brushes that slide and cooperate with the sliding contact line. A power module is provided on the carrier, and the power module is electrically connected to the clamping mechanism, the positioning detection module, and the brushes respectively. The external power supply supplies power to the power module by the sliding contact line of the brushes of the carrier.

[0007] Furthermore, the storage mechanism includes a support platform, a cardboard box support assembly, and a cardboard box retrieval nozzle. The support platform is mounted above the annular conveyor mechanism. The cardboard box support assembly is disposed on the support platform to support and stack flat cardboard boxes. A cardboard box retrieval channel for cardboard boxes to pass through is provided in the middle of the support platform. The cardboard box retrieval nozzle is vertically and vertically disposed below the support platform. A lifting drive device drives the cardboard box retrieval nozzle to place the bottommost cardboard box of the cardboard box support assembly between the first base plate and the second base plate.

[0008] Furthermore, the cardboard box support assembly includes a first paper tray, a second paper tray, a third paper tray, and a fourth paper tray. The first paper tray is fixedly disposed on the front end of the box retrieval channel, and the second paper tray is slidably disposed on the rear end of the box retrieval channel, so that the first and second paper trays are used to support the front and rear sides of the flat cardboard box. The third and fourth paper trays are slidably disposed on both sides of the box retrieval channel, so that the third and fourth paper trays are used to support the left and right ends of the flat cardboard box.

[0009] Furthermore, a reference positioning block is fixedly provided on the opposite surfaces of the first base plate and the second base plate, and the outer edge of the reference positioning block forms a positioning origin with the surface of the fixed clamping plate.

[0010] Furthermore, the folding mechanism is a pair and is respectively disposed on the first base plate and the second base plate. The folding mechanism includes a folding lug, a folding lug guide, and a folding assembly arranged sequentially along the conveying direction of the paper box. The first end of the folding guide piece is bent to have a folding pre-fold portion, so that the folding pre-fold portion guides the first fold of the paper box to gradually fold towards the box opening. The folding lever is rotatably connected to the first base plate / second base plate. The folding lever is driven by a rotation drive device to move the second fold towards the box opening, so that the folding guide piece abuts against the first fold and the second fold. The gluing assembly is located at the end of the folding guide piece and is used to glue the second box lid of the paper box to the first box lid.

[0011] Furthermore, the box-gluing assembly includes a first lid limiting piece and a second lid lever. The first lid limiting piece is connected to the end of the folding ear guide piece, and the second lid lever is pivotally connected to the end of the first lid limiting piece. The first end of the first lid limiting piece rotates 90° from the vertical direction around the horizontal direction to form a guide slope. Under the action of the first lid limiting piece, the first lid of the paper box gradually folds upward, so that the glue spraying device sprays glue on the outer surface of the second lid of the paper box. The swing drive device drives the second lid lever to push the second lid of the paper box to fold downward and stick to the first lid of the paper box.

[0012] Furthermore, the folding box mechanism also includes a tongue assembly, which is disposed on one side of the gluing box assembly. The tongue assembly includes a folding cover limiting member, a tongue pre-folding piece, and a tongue pusher piece. The top end of the folding limiter is bent upward and has a pre-folding part, so that the lid of the paper box gradually folds downward under the action of the pre-folding part and abuts against the lid through the folding limiter. The tongue pre-folding piece is slidably disposed below the first end of the folding cover limiting member. The tongue driving device drives the tongue pre-folding piece to extend so that the tongue on the box cover folds toward the box opening. The tongue pusher is slidably disposed at the end of the folding cover limiting member, and a tongue limiting block is provided between the tongue pre-folding piece and the tongue pusher, so that the connection between the tongue and the cover abuts against the side wall of the tongue limiting block. The pusher driving device drives the tongue pusher to push the cover and insert the tongue into the box opening.

[0013] Furthermore, a pair of height adjustment rods are provided above the annular conveying mechanism, with one end of each height adjustment rod extending to the lower rear end of the storage mechanism. The end of each height adjustment rod is provided with a box-supporting guide surface. When the flat cardboard box falls, it is subjected to pressure by the side wall of the box-supporting guide surface, causing the flat cardboard box to gradually unfold.

[0014] The present invention also provides a method for positioning a cardboard box, comprising the following steps: S101. Place the sample paper box on the first base plate, align the end face of the sample paper box with the outer edge of the reference positioning block, and then attach the side of the sample paper box to the surface of the fixing clamp rod to complete the initial positioning of the sample paper box. S102. Start the clamping mechanism and positioning detection module, and drive the first movable clamping rod, the second movable clamping rod, and the third movable clamping rod to move towards the fixed clamping rod through the X-axis linear module and the Y-axis linear module. S103. When the positioning detection module on the first or third movable clamping rod detects the corresponding side of the sample paper box, it immediately feeds back the signal to the control system and stops moving. Combined with the preset position parameters between the fixed clamping rod and the reference positioning block, it accurately calculates the actual length of the sample paper box in the X-axis direction. When the third movable clamping rod gradually approaches the sample paper box and contacts its side under the drive of the Y-axis linear module, the positioning detection module will immediately trigger a signal and stop moving, and feed the signal back to the control system, so that the clamping mechanism clamps the sample paper box. The positioning detection module on the second movable clamping rod calculates the width of the sample paper box based on the round-trip time of the measuring laser. The positioning and detection module on the fixed clamping rod emits a laser vertically downward to the top surface of the cardboard box, and calculates the height of the cardboard box by measuring the round-trip time of the laser.

[0015] S104. After several positioning and detection modules have collected the three-dimensional specifications of the sample paper box (length, width, and height), the control system uses the size information as a standard parameter to synchronously send the data to all clamping mechanisms on the carrier, as well as the storage mechanism, the second base plate, and the height adjustment rod, for coordinated adjustment according to the unified size standard.

[0016] Furthermore, in S104, a gap value is set between the second movable clamping rod and the third movable clamping rod of the carrier and the cardboard box:

[0017] Based on the aforementioned gap value S, the displacement trigger values ​​of the second and third movable clamping rods are obtained: C

[0018] Where D is the actual height of the side of the cardboard box, A is the angle between the side of the cardboard box and the bottom of the cardboard box, and L is the actual width of the measured sample cardboard box.

[0019] Furthermore, the angle between the side of the cardboard box and the bottom surface of the cardboard box is less than 89.72°, ensuring effective clamping of the cardboard box and preventing the clamping mechanism from clamping too tightly, causing the cardboard box to unfold and deform, or clamping too loosely, causing the cardboard box to shift position and affecting the insertion of the tongue into the socket.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) This invention can accurately identify the size of the carton by setting a positioning detection module on the clamping mechanism of a carrier. The positioning detection module quickly collects its length, width and height data and feeds them back to the control system. After receiving the size information, the control system will use it as a standard parameter to synchronously send it to the clamping mechanisms of all carriers and each mechanism, ensuring that all mechanisms can be coordinated and adjusted according to a unified size standard. No manual measurement, manual adjustment or replacement of any mechanism is required, and different specifications of cartons can be put into production quickly. (2) This invention uses a ring conveyor mechanism to realize the cyclic rotation of the carrier, which can realize a dual-station parallel operation mode. Compared with the traditional linear conveyor single-line production work, it realizes the synchronous work of the same specification and the same product or different specifications and different products, meets the needs of large-scale production, and greatly improves the overall production efficiency of the equipment. (3) This invention integrates gluing and inserting of boxes into the same equipment, which can realize the boxing operation of different cartons, greatly improving the applicability of the boxing machine. Attached Figure Description

[0021] Figure 1 This is a structural diagram of an existing cardboard box; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the ring-shaped conveyor mechanism; Figure 4 This is a structural schematic diagram of the first base plate and the second base plate; Figure 5 This is a schematic diagram of the clamping mechanism. Figure 6 To show Figure 2A schematic diagram of the structure of part A in the diagram; Figure 7 This is a schematic diagram of the height adjustment rod. Figure 8 This is a schematic diagram of the folding box mechanism; Figure 9 A schematic diagram of the structure of the folding ear lever and the folding ear guide; Figure 10 This is a structural diagram of the gluing box assembly and the tongue assembly. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in further detail below with reference to the accompanying drawings.

[0023] Reference Figure 1 As shown, the fully automatic folding box machine of the present invention is mainly for the automated processing of tubular paper boxes 10, such as conveying, folding, insertion, and gluing. Traditional tubular paper boxes have various styles. For example, the double-insertion tubular paper box 10 includes a box body formed by connecting four sides in sequence, a first folding ear 101 and a second folding ear 102 respectively foldably disposed on both sides of the box opening of the box body, and a box cover 103 respectively foldably disposed on the upper or lower edge of the box opening of the box body. The box cover 103 is provided with a foldable tongue 104. By folding the first folding ear 101 and the second folding ear 102 inward, and then inserting the tongue 104 into the box body, the box cover 103 is fixed, thereby completing the sealing of the tubular paper box.

[0024] Alternatively, a tubular cardboard box with adhesive sealing includes a box body formed by connecting four sides in sequence, a first folding lug 101 and a second folding lug 102 respectively foldably disposed on both sides of the box opening of the box body, and a first box cover 103a and a second box cover 103b respectively foldably disposed on the upper and lower edges of the box opening of the box body. By folding the first folding lug 101 and the second folding lug 102 inward, and then folding the first box cover 103a and the second box cover 103b in sequence, and then gluing the first box cover 103a and the second box cover 103b together, the tubular cardboard box is sealed.

[0025] Reference Figure 2 , Figure 3 As shown, a fully automatic cartoning machine for gluing and inserting boxes includes a ring conveying mechanism 1, several carriers 2, a cardboard storage mechanism 3, and a box folding mechanism 4. The cardboard storage mechanism 3 and the box folding mechanism 4 are arranged sequentially along the conveying direction of the cardboard box. Several carriers 2 are slidably arranged on the ring conveying mechanism 1, and clamping mechanisms 5 are provided on the several carriers 2 for clamping the cardboard boxes output by the cardboard storage mechanism 3.

[0026] In this embodiment, the annular conveying mechanism 1 includes an annular conveying frame 11 and a chain. An annular guide rail 111 is provided on the outer edge of the annular conveying frame 11. A pair of sprockets 12 are respectively provided at the corners of the annular conveying frame 11. The chain is tensioned between the sprockets 12. A linear guide rail for supporting the chain is fixedly installed on the inner side of the annular conveying frame 11. A conveying drive device is fixedly installed at the bottom of the annular conveying frame 11. The conveying drive device is preferably a geared motor. Its output shaft is fixedly connected to one of the sprockets 12, thereby driving the chain to rotate around the annular conveying frame 11 through the conveying drive device.

[0027] Combination Figure 5 As shown, a pair of guide wheels 23 are rotatably provided at the bottom of several carriers 2. The guide wheels 23 are slidably engaged with the two sides of the annular guide rail 111 respectively. The several carriers 2 are equidistantly distributed along the conveying direction of the paper box and are fixedly connected to the chain, so that the several carriers 2 slide along the annular guide rail 111 under the drive of the chain, and thus pass through the paper storage mechanism 3 and the folding mechanism 4.

[0028] Reference Figure 2 As shown, specifically, in this embodiment, the storage mechanism 3 and the folding mechanism 4 are arranged on the straight section of the annular conveyor mechanism 1, and a box ejection mechanism is provided at the end of the straight section to push the boxed paper boxes out of the annular conveyor frame 11. On the other side of the annular conveyor mechanism 1, another set of storage mechanism 3, folding mechanism 4 and box ejection mechanism can be arranged to form a dual-station parallel operation mode. The two sets of storage mechanism and folding mechanism can operate independently, enabling the equipment to process more paper boxes, thereby realizing the synchronous operation of the same specifications and the same product or different specifications and different products, meeting the needs of large-scale production, and greatly improving the overall production efficiency of the equipment.

[0029] Reference Figure 4As shown, further, a plurality of fixed support frames 131 are provided on the outer side of the annular conveyor frame 11, and a first base plate 13 is provided on the upper outer side of the annular conveying mechanism 1 and is fixedly connected to the plurality of fixed support frames 131. A plurality of slide rails are provided on the inner side of the annular conveyor frame 11, and a plurality of movable support frames 141 are slidably arranged on each slide rail. A second base plate 14 is provided on the upper inner side of the annular conveying mechanism 1 and is fixedly connected to the plurality of movable support frames 141. A conveying channel 15 for the clamping mechanism 5 to pass through is provided between the first base plate 13 and the second base plate 14. The folding box mechanism 4 is a pair and is respectively provided on the first base. The first base plate 13 and the second base plate 14 are configured with one folding mechanism 4 on the front section of the second base plate 14 and the other folding mechanism on the rear section of the first base plate 13. This enables the folding of the left and right ends of the paper box. A sliding drive device 142 is fixedly installed on the annular conveyor frame 11. In this embodiment, the sliding drive device 142 is preferably a lead screw linear module. The movable support frame 141 is fixedly connected to the slider of the sliding drive device 142. This allows the second base plate 14 to be horizontally displaced by the sliding drive device 142, thereby adjusting the size of the conveying channel 15 to meet the conveying requirements of paper boxes of different sizes.

[0030] When conveying larger cartons, the sliding drive device 142 drives the movable support frame 141 to slide the second base plate 14 away from the first base plate 13, thereby increasing the width of the conveying channel 15. Conversely, when handling smaller cartons, the sliding drive device 142 drives the movable support frame 141 to slide the second base plate 14 closer to the first base plate 13, reducing the width of the conveying channel 15. This ensures that the cartons are stably positioned and guided during conveying, preventing deviation or tipping. This method can meet the production and processing requirements of various cartons of different sizes without requiring separate replacement of conveying components for different cartons, effectively reducing equipment operating costs and changeover time.

[0031] Meanwhile, since the folding mechanism 4 is installed on the first base plate 13 and the second base plate 14 respectively, when the second base plate 14 moves closer to or further away from the first base plate 13 under the action of the sliding drive device 142, the folding mechanism 4 will also move synchronously, thereby changing the relative distance between the folding mechanisms 4.

[0032] Through the above-mentioned linkage adjustment method, when the folding mechanism 4 is processing paper boxes of different sizes, there is no need to adjust the position of each folding mechanism 4 individually, which greatly simplifies the operation process and further improves the automation level and production efficiency of the equipment.

[0033] Combination Figure 5As shown, the clamping mechanism 5 includes a fixed clamping rod 51, a first movable clamping rod 52, a second movable clamping rod 53, and a third movable clamping rod 54. The fixed clamping rod 51 is fixedly mounted on the carrier 2. The first movable clamping rod 52 is slidably mounted on one side of the fixed clamping rod 51. The second movable clamping rod 53 and the third movable clamping rod 54 are slidably engaged with the carrier 2 relative to the fixed clamping rod 51 and the first movable clamping rod 52, respectively.

[0034] Specifically, the carrier 2 is orthogonally slidably provided with an X-axis slide block 21 and a Y-axis slide block 22. The first movable clamping rod 52 is fixedly disposed on the end of the X-axis slide block 21, the third movable clamping rod 54 is slidably disposed on the top surface of the X-axis slide block 21 and slidably cooperates with the Y-axis slide block 22, and the second movable clamping rod 53 is fixedly disposed on the end of the Y-axis slide block 22.

[0035] In this embodiment, an X-axis linear module 211 is provided on one side of the carrier 2. The X-axis linear module 211 is preferably a servo screw linear module. The X-axis linear module 211 drives the X-axis slide 21 to drive the first movable clamp 52 and the third movable clamp 54 to slide along the X-axis. A Y-axis linear module 221 is provided on the Y-axis slide 22. The Y-axis linear module 221 is preferably a servo screw linear module. The Y-axis linear module 221 drives the third movable clamp 54 to drive the second movable clamp 53 to slide along the Y-axis.

[0036] Through the above settings, the fixed clamping rod 51 and the first movable clamping rod 52 can move closer to or further away from the second movable clamping rod 53 and the third movable clamping rod 54 respectively in the Y-axis direction, thereby adjusting the clamping width of the clamping mechanism in the Y-axis direction. At the same time, the first movable clamping rod 52 and the third movable clamping rod 54 can move closer to or further away from the fixed clamping rod 51 and the second movable clamping rod 53 respectively in the X-axis direction, thereby adjusting the clamping length of the clamping mechanism 5 in the X-axis direction. This allows for precise adaptation to cartons of different lengths and widths, ensuring that the cartons are stably and reliably clamped during conveying and folding, preventing them from shifting or shaking, and providing a solid foundation for subsequent folding processes. The selection of the servo screw linear module not only ensures the smoothness and positional accuracy of the sliding of the X-axis slide 21 and the Y-axis slide 22, but also makes the control of the clamping force more precise, avoiding the problem of the cartons falling off due to excessively loose clamping or deforming and damaging the cartons due to excessively tight clamping.

[0037] Reference Figure 2 , Figure 6As shown, the storage mechanism 3 includes a support platform 31, a paper box support assembly 32, and a paper box retrieval nozzle 33. The support platform 31 is mounted above the annular conveyor mechanism 1. The paper box support assembly 32 is mounted on the support platform 31 to support and stack flat paper boxes 10. A paper box retrieval channel 311 for paper boxes 10 to pass through is provided in the middle of the support platform 31. The paper box retrieval nozzle 33 is vertically and vertically mounted below the support platform 31. A sliding linear module 331 is mounted above the annular conveyor mechanism 1 in front of the support platform 31. In this embodiment, the sliding linear module 331 is preferably a servo screw module. A paper box retrieval mounting plate is slidably mounted on the sliding linear module 331, and a paper box retrieval mounting plate is fixedly mounted on the paper box retrieval mounting plate. The lifting drive device 332 is preferably a cylinder. A suction nozzle bracket is fixedly installed on its telescopic end. The box-retrieving suction nozzle 33 is fixedly set on the suction nozzle bracket and connected to an air source. Through the telescopic movement of the lifting drive device 332, the box-retrieving suction nozzle 33 can move up and down in the box-retrieving channel 311. When it is necessary to pick up the paper box 10, the lifting drive device 332 drives the box-retrieving suction nozzle 33 to rise, so that it passes through the box-retrieving channel 311 and contacts the bottommost paper box 10 stacked on the paper box support assembly 32. Then, the air source provides negative pressure, and the box-retrieving suction nozzle 33 sucks up the paper box 10. Then, the lifting drive device 332 drives the box-retrieving suction nozzle 33 and the sucked paper box 10 to descend to the set height.

[0038] Furthermore, the paper box support assembly 32 includes a first paper support piece 321, a second paper support piece 322, a third paper support piece 323, and a fourth paper support piece 324. The bottom edges of the first paper support piece 321, the second paper support piece 322, the third paper support piece 323, and the fourth paper support piece 324 are provided with protruding tabs. The first paper support piece 321 is fixedly disposed on the front end of the box retrieval channel 311, and the second paper support piece 322 is slidably disposed on the rear end of the box retrieval channel 311, so that the first paper support piece 321 and the second paper support piece 322 are used to support the front and rear sides of the flat paper box 10. The third paper support piece 323 and the fourth paper support piece 324 are respectively slidably disposed on both sides of the box retrieval channel 311, so that the third paper support piece 323 and the fourth paper support piece 324 are used to support the left and right ends of the flat paper box 10.

[0039] Specifically, the support platform 31 is provided with first guide rails on the left and right sides respectively, and a first paper tray adjustment seat is slidably arranged between the first guide rails. The second paper tray piece 322 is arranged on the first paper tray adjustment seat 312. The first guide rail is provided with a first paper tray driving device 3121. The first paper tray driving device 3121 is preferably a lead screw linear module, and its slider is fixedly connected to the first paper tray adjustment seat 312.

[0040] The front and rear sides of the support platform 31 are respectively provided with a second guide rail and a third guide rail. A second paper tray adjusting seat 313 is slidably arranged between the second guide rails. A third paper tray piece 323 is installed on the second paper tray adjusting seat 313. A third paper tray adjusting seat 314 is slidably arranged between the third guide rails. A fourth paper tray piece 324 is installed on the third paper tray adjusting seat 314. A second paper tray driving device 3131 and a third paper tray driving device 3141 are respectively provided on the second guide rail and the third guide rail. The second paper tray driving device 3131 and the third paper tray driving device 3141 are preferably linear screw modules. The sliders of the second paper tray driving device 3131 and the third paper tray driving device 3141 are fixedly connected to the second paper tray adjusting seat 313 and the third paper tray adjusting seat 314, respectively.

[0041] When it is necessary to accommodate flat paper boxes 10 of different sizes, the first paper tray driving device 3121 drives the first paper tray adjusting seat 312 to slide along the first guide rail, thereby causing the second paper tray piece 322 to move back and forth to adjust the distance between the first paper tray piece 321 and the second paper tray piece 322; the second paper tray driving device 3131 drives the second paper tray adjusting seat 313 to slide along the second guide rail, thereby causing the third paper tray piece 323 to move left and right; the third paper tray driving device 3141 drives the third paper tray adjusting seat 314 to slide along the third guide rail, thereby causing the fourth paper tray piece 324 to move left and right, thereby adjusting the distance between the third paper tray piece 323 and the fourth paper tray piece 324.

[0042] With the above configuration, the carton support component 32 can flexibly adapt to the support requirements of flat cartons 10 of different specifications, ensuring that the carton can be stably and reliably supported during the carton removal process, preventing it from shifting or falling during transportation or subsequent processing.

[0043] Combination Figure 6 , Figure 7 As shown, further, a pair of height adjustment rods 6 are provided above the annular conveying mechanism 1. One end of the height adjustment rod 6 extends to the lower rear end of the storage mechanism 3, and the end of the height adjustment rod 6 is provided with a box-supporting guide surface 61. During the process of the paper box 10 being sucked down by the box-removing suction nozzle 33, the side wall of the flat paper box 10 will contact the box-supporting guide surface 61 at the end of the height adjustment rod 6. The box-supporting guide surface 61 limits the side wall of the flat paper box 10, thereby generating a pressure against the paper box 10. This pressure will cause the side wall of the flat paper box 10 to gradually open, so that the originally attached side wall of the paper box initially forms a certain opening angle.

[0044] As the suction nozzle 33 continues to lower the cardboard box 10, the height adjustment rod 6 continues to support the side wall of the cardboard box 10, ensuring that the cardboard box remains in a stable semi-open state before entering the next process. This provides a good initial shape for subsequent folding operations and effectively avoids folding misalignment or failure caused by unstable cardboard box shape.

[0045] When the carrier 2 is transported to the bottom of the storage mechanism 3 by the annular conveyor mechanism 1, the lifting drive device 332 drives the box-retrieving suction nozzle 33 to rise and suck up the bottom flat cardboard box 10. Then, it drives the box-retrieving suction nozzle 33 to fall down and take out the bottom flat cardboard box 10 from the box-retrieving channel 311 and send it to the clamping mechanism 5 of the carrier 2. During the falling process, the flat cardboard box is opened up by the pressure of the box-supporting guide surface 61 to form a three-dimensional cardboard box 10 until the cardboard box 10 is placed between the first base plate 13 and the second base plate 14. In this embodiment, a reference positioning block 16 is fixedly provided on the opposite surface of the first base plate 13 and the second base plate 14. The reference positioning block supports the left and right ends of the cardboard box 10. The box-retrieving suction nozzle 33 then releases its suction on the cardboard box 10 and waits for the next box-retrieving command. Meanwhile, the X-axis linear module 211 and the Y-axis linear module 221 respectively drive the first movable clamping rod 52, the second movable clamping rod 53, and the third movable clamping rod 54 to move towards the fixed clamping rod 51 according to the size of the cardboard box. This causes the fixed clamping rod 51 and the second movable clamping rod 53 to clamp the right outer wall of the cardboard box 10, and the first movable clamping rod 52 and the third movable clamping rod 54 to clamp the left outer wall of the cardboard box 10. This achieves stable clamping of the left and right sides of the cardboard box 10, ensuring that all surfaces of the cardboard box 10 remain parallel, which is convenient for subsequent box insertion or gluing processes. Finally, the ring conveyor mechanism 1 drives the carrier 2 to move the cardboard box through the folding mechanism 4 for folding.

[0046] Reference Figure 7 As shown, preferably, a height adjustment plate 60 is provided above the annular conveyor mechanism 1. Multiple inverted "L"-shaped brackets 62 are equidistantly slidably arranged on the first base plate 13 along the conveying direction of the paper box. The height adjustment plate 60 is fixedly connected to the multiple inverted "L"-shaped brackets 62 respectively. Guide rods 602 are slidably arranged at both ends of the height adjustment plate 60. A width adjustment plate 63 is fixedly arranged at the lower part of the guide rods 602. One height adjustment rod 6 is fixedly arranged at the bottom of the width adjustment plate 63, and the other height adjustment rod 6 is slidably arranged at the bottom of the width adjustment plate 63. A displacement linear module 621 is fixedly installed on the first base plate 13. The displacement linear module 621 is preferably a lead screw linear module. The slider of the lead screw linear module is fixedly connected to the inverted "L"-shaped brackets 62, so that the height adjustment plate 60 is driven by the displacement linear module 621 to move the height adjustment rod 6 in the horizontal direction.

[0047] In this embodiment, a first driving device 603 is fixedly installed in the middle of the height adjustment plate 60. The first driving device 603 is preferably a lead screw linear motor, and its lead screw is rotatably connected to the width adjustment plate 63 through a bearing. A second driving device 631 is fixedly installed on the side wall of the width adjustment plate 63. The second driving device 631 is preferably a lead screw linear motor, and its lead screw is rotatably connected to the height adjustment rod 6 through a bearing.

[0048] In actual operation, the displacement linear module 621 drives the height adjustment rod 6 to slide along the length direction of the height adjustment plate 60, thereby ensuring the distance between the end of the height adjustment rod 6 and the second paper tray 322 to adapt to the folding requirements of paper boxes of different widths.

[0049] Driven by the second drive device 631, the height adjustment rod 6 can slide along the length direction of the width adjustment plate 63, thereby achieving precise adjustment of the horizontal distance between the two height adjustment rods 6 to adapt to the folding requirements of paper boxes of different lengths.

[0050] Meanwhile, when the first driving device 603 is working, it can drive the width adjusting plate 63 together with the height adjusting rod 6 to move up and down along the vertical direction of the height adjusting plate 60, thereby changing the height position of the height adjusting rod 6 relative to the annular conveying mechanism 1, so as to meet the height adaptation requirements of paper boxes of different heights during the folding process.

[0051] Through the above-mentioned multiple adjustment structure designs, the height adjustment rod 6 can be flexibly adjusted according to different specifications of paper boxes, which can adapt to the box support requirements of various sizes of flat paper boxes 10, and enhance the versatility and applicability of the equipment.

[0052] Reference Figure 1 , Figure 8 , Figure 9 As shown, the folding mechanism 4 includes a folding lug 41 and a folding lug guide 42 arranged sequentially along the conveying direction of the paper box 10. The folding lug guide 42 is fixedly connected to the first base plate 13 / second base plate 14, and the folding lug 41 is rotatably connected to the first base plate 13 / second base plate 14. In this embodiment, a rotary drive device is fixedly installed on the first base plate 13 / second base plate 14. The rotary drive device is preferably a servo motor, and a rotating block 411 is fixedly installed on its output shaft. The end face of block 411 has a groove 412. The folding lug 41 slides in conjunction with the groove 412 of the rotating block 411. The folding lug 41 is provided with a strip groove 413. A fastening component that is fixedly connected to the rotating block 411 is inserted in the strip groove 413. The fastening component is preferably a screw. The distance between the folding lug 41 and the folding lug of the paper box 10 is adjusted by the strip groove 413, thereby achieving precise adjustment of the initial angle and the working stroke of the folding lug 41 when it acts on the folding lug of the paper box 10.

[0053] Furthermore, the ear guide plate 42 is a flat plate structure, and the first end of the ear guide plate 42 is bent to provide an ear pre-folding portion 421. When the carton 10 moves forward under the drive of the annular conveyor mechanism and contacts the ear pre-folding portion 421, the ear pre-folding portion 421 can pre-apply a guiding force to the first ear 101 of the carton 10, so that the ear pre-folding portion 421 guides the first ear 101 of the carton to gradually fold towards the opening of the carton. After entering the ear guide plate 42, the first ear 101 abuts against the ear guide plate 42, so that the ear guide plate 42 confines the first ear 101 to the carton 10. At the opening of the box 10, when the second folding ear 102 of the paper box 10 passes the folding ear lever 41, the rotary drive device drives the folding ear lever to rotate in the conveying direction of the paper box, so that the folding ear lever 41 moves the second folding ear 102 to gradually fold towards the opening of the box, until the second folding ear 102 enters the folding ear guide plate 42. The rotary drive device then drives the folding ear lever 41 to reset, waiting for the next paper box 10. The second folding ear abuts against the folding ear guide plate 42, so that the folding ear guide plate 42 restricts the second folding ear 102 at the opening of the paper box 10, thereby realizing the automatic folding of the first folding ear 101 and the second folding ear 102 of the paper box 10.

[0054] Reference Figure 1 , Figure 8 , Figure 10 As shown, in this embodiment, the folding box mechanism 4 further includes a gluing assembly 43, which is disposed at the end of the folding ear guide piece 42. The gluing assembly 43 is suitable for sealing the glued box. A box cover gap is formed between the folding ear guide piece 42 and the surface of the first base plate 13 / second base plate 14. When the box 10 passes the folding ear guide piece, the first box cover 103a of the box moves along the box cover gap, while the second box cover 103b moves above the folding ear guide piece 42 to facilitate subsequent gluing.

[0055] The gluing assembly 43 includes a first lid limiting piece 431 and a second lid lever 432. The first lid limiting piece 431 is connected to the end of the folding ear guide piece 42 and fixedly mounted on the first base plate 13 / second base plate 14. The second lid lever 432 is pivotally connected to the end of the first lid limiting piece 431. The first end of the first lid limiting piece 431 extends toward the folding ear guide piece 42 and gradually rotates 90° from the vertical direction around the horizontal direction to form a guide slope 4311. There is a gap between the guide slope 4311 and the surface of the folding ear guide piece 42 for the first lid 103a of the paper box to pass through. The end of the guide slope 4311 is higher than the surface of the first lid 103a of the paper box. The height is lower than the top surface height of the reference positioning block 16. When the first lid 103a of the paper box 10 moves forward under the drive of the ring conveyor mechanism and contacts the guide slope 4311, the guide slope 4311 can apply a guiding force to the first lid 103a of the paper box 10 in advance, so that the guide slope 4311 guides the first lid 103a of the paper box to gradually fold upward towards the box opening, until the lid of the paper box enters the first lid limiting piece 431. The first lid limiting piece 431 abuts against the first lid 103a of the paper box 10, so that the first lid limiting piece 431 limits the first lid 103a at the box opening of the paper box 10.

[0056] Furthermore, a glue spraying device is provided between the first lid limiting piece 431 and the second lid lever 432. The glue spraying device includes a glue spraying head and a glue storage tank. The glue spraying head is mounted on the first base plate 13 / second base plate 14. The glue storage tank contains glue and is connected to the glue spraying head via a hose. The glue spraying nozzle of the glue spraying head faces the first lid 103a of the cardboard box 10. A glue spraying slot 4312 is formed on the upper rear section of the first lid limiting piece 431. The height of 12 is two-thirds of the height of the first lid 103a, ensuring that the preset area of ​​the first lid is unobstructed. When the first lid 103a of the cardboard box 10 is fixed at the box opening by the first lid limiting piece 431 and continues to move forward to the glue spraying slot 4312 position, a certain amount of glue is sprayed onto the surface of the first lid 103a through the glue spraying nozzle and the glue spraying slot 4312, so that the glue sprayed from the glue spraying head can accurately and evenly cover the preset area of ​​the first lid 103a. After the glue spraying is completed, the cardboard box 10 continues to be conveyed forward by the ring conveyor mechanism and enters the area acted upon by the second lid lever 432.

[0057] In this embodiment, a pivot seat 4321 is fixedly installed on the first base plate 13 / second base plate 14. The second cover lever 432 is parallel to the second cover 103b, and a pivot plate 4322 is provided on the second cover lever 432. A pivot shaft 4323 is rotatably installed on the pivot seat 4321. The end of the pivot plate 4322 is fixedly connected to the pivot shaft 4323, and one end of the pivot shaft 4323 extends outward and is fixedly provided with a connecting block. A swing drive device is fixedly installed at the bottom of the first base plate 13 / second base plate 14. The swing drive device is preferably a cylinder, and its extension end is hinged to the connecting block. The second cover lever... The initial height of 432 is higher than the height of the paper box 10. When the first lid 103a moves below the second lid lever 432, the swing drive device drives the second lid lever 432 to swing downward, thereby applying downward pressure to the second lid 103b of the paper box, causing the second lid 103b to fold downward until the surface of the second lid 103b is attached to the glued area on the surface of the first lid 103a, thus completing the gluing of the first lid 103a and the second lid 103b of the paper box. After the gluing work is completed, the swing drive device drives the second lid lever 432 to swing upward, waiting for the gluing work of the next paper box.

[0058] Reference Figure 1 , Figure 8 , Figure 10 As shown, in this embodiment, the folding box mechanism 4 further includes a tongue assembly 44, which is disposed on one side of the gluing box assembly 43. The tongue assembly 44 is used to seal the cardboard box with double openings.

[0059] The latch assembly 44 includes a folding cover retainer 441, a latch pre-folding tab 442, and a latch pusher 443. The folding cover retainer 441 is mounted on the first base plate 13 / second base plate 14, and the first end of the folding cover retainer 441 is bent upward to form a folding portion 4411. The latch pre-folding tab 442 is slidably disposed below the first end of the folding cover retainer 441, and the latch pusher 443 is slidably disposed at the end of the folding cover retainer 441. The surfaces of the first base plate 13 / second base plate 14 are flush with the folding cover retainer 441. The first and last ends of 41 are respectively fixedly installed with a tongue drive device 4421 and a pusher drive device 4431. In this embodiment, both the tongue drive device 4421 and the pusher drive device 4431 are preferably cylinders. The tongue pre-folding piece 442 is fixedly set on the telescopic end of the tongue drive device 4421, and the tongue pusher 443 is fixedly set on the telescopic end of the pusher drive device 4431. A partition piece 444 is provided below the folding cover limiting member 441, which is connected to the end of the first box cover limiting piece 431.

[0060] Specifically, in this embodiment, when replacing the double-slot cardboard box, the gluing assembly stops working. The cardboard box is driven by a ring conveyor mechanism to fold the first fold 101 and the second fold 102 via the folding lug 41 and folding lug guide 42, and then continues to move forward. The folding lug guide 42 and the first lid limiting piece 431 limit the first fold 101 and the second fold 102 to the opening of the cardboard box 10. When the lid 103 of the cardboard box 10 contacts the lid pre-folding portion 4411 of the lid limiting piece 441, the lid pre-folding portion 4411 applies a guiding force to the lid 103 of the cardboard box 10 in advance, so that the lid pre-folding portion 4411 guides the lid 103 of the cardboard box to gradually... Fold downwards towards the box opening and abut against the divider 444 until the box lid enters the main body of the box lid retainer 441, so that the box lid 103 of the box 10 abuts against the box lid retainer 441, thereby limiting the box lid 103 at the box opening of the box 10. Driven by the carrier, it continues to move forward to the position of the tongue pre-folding piece 442. The tongue pre-folding piece 442 is driven to extend by the tongue driving device, so that the tongue 104 on the box lid 103 folds towards the box opening under the push of the tongue pre-folding piece 442. The divider 444 can prevent the box lid from moving during the process of pushing the tongue, ensuring the smooth folding path of the tongue 104.

[0061] In this embodiment, a tongue limiting block 4432 is provided below the folding limiting member 441 between the tongue pre-folding piece 442 and the tongue pusher piece 443. The top surface height of the tongue limiting block 4432 is greater than the top surface height of the reference positioning block 16. After the tongue 104 completes the pre-folding, the tongue driving device 4421 drives the tongue pre-folding piece 442 to reset. The carton 10 continues to move forward under the drive of the carrier 2. The connection between the folded tongue 104 and the lid 103 abuts against the side wall of the tongue limiting block 4432 to prevent the tongue 104 from resetting during the movement, which would affect the subsequent tongue insertion work. After the carton reaches the position of the tongue pusher piece 443, the pusher piece driving device 4431 drives the tongue pusher piece 443 to push the lid 103 to insert the tongue 104 into the carton opening, thereby completing the final sealing action of the carton.

[0062] Furthermore, in this embodiment, a cartoning machine is installed outside the circular conveyor mechanism. After one end of the carton is sealed, it moves to the cartoning machine's station. The cartoning machine feeds the product (such as medicine, food, building blocks, etc.) into the carton. Then, the circular conveyor mechanism sends the carton 10 to the next folding mechanism 4 for sealing the other end. Finally, it is conveyed to the ejector mechanism's station, where the carton is ejected from the carrier. Thus, through the coordinated work of the circular conveyor mechanism and the cartoning machine, fully automated continuous operation from carton forming and material filling to folding and sealing is achieved, significantly improving production efficiency, reducing labor costs, and ensuring the consistency and reliability of product packaging.

[0063] The cartoning machine described above is existing equipment, and will not be described again in this embodiment.

[0064] Even better, in order to solve the problem that existing cartoning machines require frequent manual adjustment of the parameters of various mechanisms when handling different sizes of cartons 10, resulting in low changeover efficiency, this embodiment is provided with several positioning detection modules on the clamping mechanism 5. The positioning detection modules preferably adopt laser rangefinders. The several positioning detection modules are fixedly installed on the fixed clamping rod 51, the first movable clamping rod 52, the second movable clamping rod 53, and the third movable clamping rod 54. Through the several positioning detection modules, the position parameters of the carton 10 during the clamping process can be detected in real time, namely the length, width, and height of the carton, and the detected size data is transmitted to the control system in real time. The control system controls the storage mechanism 3, the second base plate 14, the height adjustment rod 6, and the clamping mechanisms 5 on all carriers 2 to adjust to match the size of the carton according to the acquired size data.

[0065] Through this automatic parameter adjustment mechanism based on the positioning detection module, this embodiment can quickly respond to the production needs of paper boxes of different specifications without the need for manual adjustment of the mechanical parameters of each mechanism, which greatly shortens the changeover time and improves the versatility and production flexibility of the equipment. It is especially suitable for paper box production scenarios with multiple varieties and small batches.

[0066] Specifically, in this embodiment, the control system is preferably a PLC. The connection between the PLC and each mechanism and the signal transmission method are common knowledge and will not be repeated here.

[0067] Reference Figures 2-8 As shown, the specific automatic positioning process of the cardboard box is as follows: In this embodiment, the outer edge of the reference positioning block 16 on the first base plate 13 is used as the Y-axis reference plane (i.e., the positioning reference of the paper box in the Y-axis direction), and the inner side wall of the fixed clamping rod 51 is used as the X-axis reference plane (i.e., the positioning reference of the paper box in the X-axis direction), so that a stable two-dimensional positioning coordinate system is formed between the reference positioning block 16 and the fixed clamping rod 51. The staff places the packaged sample paper box in the clamping mechanism 5 of the carrier 2, and the two sides of the sample paper box are respectively attached to the X-axis reference plane of the fixed clamping rod 51 and the Y-axis reference plane of the reference positioning block 16, thereby completing the initial positioning of the sample paper box.

[0068] Then the clamping mechanism is activated, and the first movable clamping rod and the third movable clamping rod are driven to move along the X-axis direction through the X-axis linear module. When the positioning detection module of the first movable clamping rod 52 or the third movable clamping rod 54 detects the corresponding side of the sample paper box, it will immediately feed back the signal to the control system and stop moving. Combined with the preset position parameters between the fixed clamping rod 51 and the reference positioning block 16, the actual length of the sample paper box 10 in the X-axis direction is accurately calculated.

[0069] Next, the Y-axis linear module drives the second movable clamping rod 53 and the third movable clamping rod 54 to move along the Y-axis. In this embodiment, the second movable clamping rod 53 is equipped with a proximity detection module. When the second movable clamping rod 53 gradually approaches the sample box and contacts its side under the drive of the Y-axis linear module, the proximity detection module will immediately trigger a signal and stop moving, thereby causing the clamping mechanism 5 to clamp the sample box. The positioning detection module on the second movable clamping rod 53 calculates the width of the sample box based on the round-trip time of the measured laser. The positioning detection module on the fixed clamping rod 51 is vertically set. The positioning detection module on the fixed clamping rod 51 emits a laser vertically downward to the top surface of the box and calculates the height of the box by measuring the round-trip time of the laser.

[0070] The above settings enable the rapid and accurate acquisition of the three-dimensional dimensions (length, width, and height) of the sample cardboard box, providing precise data support for subsequent folding processes. This effectively avoids errors that may arise from manual measurement, improves the overall automation level and production efficiency of the equipment, and ensures that the dual-reference-plane design allows for positioning at a unified coordinate origin each time a different cardboard box is replaced. This effectively avoids problems such as insufficient folding accuracy and unstable forming quality caused by initial placement deviations of the cardboard box, providing reliable positional assurance for subsequent folding actions.

[0071] Furthermore, in this embodiment, it is not necessary to install a positioning detection module on each carrier 2. A positioning detection module only needs to be installed on the clamping mechanism 5 of one carrier to achieve accurate identification of the cardboard box size. For example, a positioning detection module can be configured on the first carrier 2. When the cardboard box 10 enters the clamping range of that carrier 2, the positioning detection module quickly collects its length, width, and height data and feeds it back to the control system. After receiving the size information, the control system will use it as a standard parameter and synchronously send it to the clamping mechanisms 5 of all carriers 2, as well as the storage mechanism 3, the second base plate 14, and the height adjustment rod 6, and other related actuators, ensuring that all mechanisms can be coordinated and adjusted according to a unified size standard.

[0072] This centralized testing and unified control approach significantly reduces the manufacturing cost and maintenance difficulty of the equipment while ensuring testing accuracy and adjustment precision. It avoids resource waste and system redundancy caused by installing testing modules on each vehicle, further improving the economic efficiency and operational stability of the equipment.

[0073] Furthermore, in this embodiment, a force-bearing component is provided on the carrier 2 equipped with a positioning detection module, and a force-applying component is provided on the inner side of the annular conveyor frame. The force-applying component is preferably an electromagnet, and the force-bearing component is preferably an iron block. When it is necessary to change to a cardboard box of different specifications, the operator operates the control system to reset several carriers 2. At this time, the force-applying component is energized to generate magnetic force. When the carrier 2 equipped with the positioning detection module passes through the force-applying component, it attracts the force-bearing component, thereby limiting the carrier to a specific position and forming a temporary reference positioning station for subsequent collection of the size data of the new specification cardboard box.

[0074] Furthermore, in the actual production process, the clamping force required for paper boxes 10 of different materials is different. If the paper box material is hard and the weight is heavy, the clamping force of the clamping mechanism 5 needs to be appropriately increased to prevent the paper box from sliding during the conveying process. If the paper box material is soft and the weight is light, the clamping force of the clamping mechanism is too large, which may easily cause the paper box to deform or be damaged.

[0075] Therefore, this embodiment can set a gap value S (i.e., the gap reserved between the second movable clamping rod 53, the third movable clamping rod 54 and the surface of the paper box 10) according to the weight of different paper boxes. After the paper box 10 is positioned, the clamping distance L (actually the width of the paper box) between the second movable clamping rod 53, the third movable clamping rod 54 and the fixed clamping rod 51, the first movable clamping rod 52 can be determined. When the paper box suction nozzle picks up the paper box 10 and transports it to the clamping area of ​​the carrier 2, the control system will add the set gap value S to the clamping distance L to obtain the travel of the second movable clamping rod 53 and the third movable clamping rod 54. This allows for a larger clamping force to be applied to paper boxes with harder materials and heavier weight, ensuring that the paper boxes with harder materials and heavier weight are stable and do not slip during the conveying process. For paper boxes with softer materials and lighter weight, the clamping force is reduced accordingly, effectively preventing the paper box from deforming or being damaged due to excessive clamping.

[0076] For example, if the width of cardboard box 10 is 15cm, and the gap "S" is set to 0.05cm± for cardboard boxes with harder materials and heavier weight, then the Y-axis linear module drives the second movable clamping rod 53 and the third movable clamping rod 54 to move along the Y-axis until the distance between the second movable clamping rod 53 and the third movable clamping rod 54 and the fixed clamping rod 51 and the first movable clamping rod 52 reaches 15.05cm±, at which point the movement stops. At this point, the clamping mechanism 5 applies a larger clamping force to the cardboard box, ensuring that the cardboard box with harder materials and heavier weight is stable and does not slip during the conveying process. For cardboard boxes with softer materials and lighter weight, the gap value S can be set to 0.17cm. At this point, the distance between the second movable clamping rod 53 and the third movable clamping rod 54 and the fixed clamping rod 51 and the first movable clamping rod 52 reaches 15.17cm±, and the clamping force is reduced accordingly, effectively preventing the cardboard box from deforming or being damaged due to excessive clamping.

[0077] By dynamically adjusting the gap "S" according to the quality of the cardboard box, flexible clamping of cardboard boxes of different materials and qualities is achieved. This not only ensures the reliability of clamping but also maximizes the protection of the integrity of the cardboard box, further improving the adaptability and production quality of the folding box machine when handling diverse cardboard boxes.

[0078] Furthermore, a sliding contact line is fixedly installed on the inner side of the circular conveyor frame, and the sliding contact line is connected to an external power source. Several carriers are respectively fixedly installed at their bottoms with brushes that slide in cooperation with the sliding contact line. Each carrier is equipped with an independent power module. In this embodiment, the power module is electrically connected to the clamping mechanism, the positioning detection module, and the brushes. When the carrier moves, the brushes slide against the sliding contact line, and the external power source supplies power to the power module in the carrier through the continuous contact between the sliding contact line and the brushes. This allows the power module to power the X-axis linear module, Y-axis linear module, and positioning detection module on the carrier, solving the power supply problem when the carrier moves cyclically on the circular conveyor frame, ensuring the normal operation of all components on the carrier, and thus improving the reliability and stability of the entire fully automatic folding box machine.

[0079] The present invention also provides a method for positioning a paper box, comprising the following steps: S101. Place the sample paper box on the first base plate, align the end face of the sample paper box with the outer edge of the reference positioning block, and then attach the side of the sample paper box to the surface of the fixing clamp rod to complete the initial positioning of the sample paper box. S102. Start the clamping mechanism and positioning detection module, and drive the first movable clamping rod, the second movable clamping rod, and the third movable clamping rod to move towards the fixed clamping rod through the X-axis linear module and the Y-axis linear module. S103. When the positioning detection module on the first or third movable clamping rod detects the corresponding side of the sample paper box, it immediately feeds back the signal to the control system and stops moving. Combined with the preset position parameters between the fixed clamping rod and the reference positioning block, it accurately calculates the actual length of the sample paper box in the X-axis direction. When the third movable clamping rod gradually approaches the sample paper box and contacts its side under the drive of the Y-axis linear module, the positioning detection module will immediately trigger a signal and stop moving, and feed the signal back to the control system, so that the clamping mechanism 5 clamps the sample paper box, and the positioning detection module on the second movable clamping rod calculates the width of the sample paper box based on the round-trip time of the measuring laser. The positioning and detection module on the fixed clamping rod emits a laser vertically downward to the top surface of the cardboard box, and calculates the height of the cardboard box by measuring the round-trip time of the laser. S104 After several positioning and detection modules have collected the three-dimensional specifications of the sample paper box (length, width, and height), the control system will send the dimensional information as standard parameters to the clamping mechanisms on all carriers, as well as the storage mechanism, the second base plate, and the height adjustment rod, so that they can be coordinated and adjusted according to the unified dimensional standard.

[0080] Specifically, after the sample box is sized and positioned, the control system sends a command to the storage mechanism. The storage mechanism precisely adjusts the stroke of the box support component and the height adjustment rod according to the length and width parameters of the sample box, ensuring that the box support component can accurately support the flat box and unfold it. Meanwhile, driven by the driving device, the second base plate adjusts the distance between its folding mechanism and the folding mechanism on the first base plate according to the length parameters of the sample paper box, so as to ensure that the folding mechanisms on the first base plate and the second base plate can stably glue or insert the paper box.

[0081] In S104, the second and third movable clamping rods of the carrier are set with clearance values ​​between themselves and the cardboard box.

[0082] Based on the aforementioned gap value S, the displacement trigger values ​​of the second and third movable clamping rods are obtained: C

[0083] Where D is the actual height of the side of the cardboard box, A is the preset angle between the side of the cardboard box and the bottom of the cardboard box, and L is the actual width of the measured sample cardboard box.

[0084] Specifically, in this embodiment, the gap value S is set according to different cardboard box weights to adapt to different clamping tightness. In order to ensure that the tongue can be accurately inserted into the corresponding slot of the cardboard box, this embodiment needs to ensure that the angle between the side of the cardboard box and the bottom surface of the cardboard box is less than 89.72° during the clamping process, preferably 89.7135°. This ensures effective clamping of the cardboard box and avoids the cardboard box from unfolding and deforming due to excessive clamping or the cardboard box from shifting position due to excessive clamping, which affects the insertion of the tongue into the slot. Therefore, the target displacement trigger value of the second and third movable clamping rods is calculated according to the above formula. For example, if the side height of the cardboard box is 10cm and the angle between the side and the bottom surface is preset to 89.7135°, the gap value S can be obtained as S = 10cm × cos89.7135° ≈ 0.05cm. If the actual width L of the sample cardboard box is measured to be 15cm, substituting it into the displacement trigger value formula, we can get C ≈ 0.05cm + 15cm = 15.05cm. When the second and third movable clamping rods move to the displacement trigger value C, the stop action can be triggered. The appropriate displacement trigger value can be obtained by correcting the above formula, thereby adjusting the most suitable position for clamping the cardboard box. This avoids the cardboard box being squeezed and deformed due to excessive clamping caused by tilting error, or the positioning being inaccurate due to excessive gap. This ensures the positioning accuracy of subsequent boxing processes and achieves flexible clamping of cardboard boxes of different materials and qualities.

[0085] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They cannot be used to limit the scope of protection of the present invention. All modifications made according to the spirit of the main technical solution of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A fully automatic cartoning machine for gluing and inserting boxes, characterized in that, The system includes a ring conveyor (1), several carriers (2), a paper storage mechanism (3), and a folding mechanism (4). The paper storage mechanism (3) and the folding mechanism (4) are arranged sequentially along the conveying direction of the paper box. The several carriers (2) are slidably arranged on the ring conveyor (1). The several carriers (2) are provided with a clamping mechanism (5) for clamping the paper box output by the paper storage mechanism (3). The ring conveyor (1) drives the carriers (2) to move the paper box through the folding mechanism (4), so that the folding mechanism (4) can perform a gluing or inserting action on the paper box. A first base plate (13) is fixedly arranged on the upper outer side of the annular conveying mechanism (1), and a second base plate (14) is slidably arranged on the upper inner side of the annular conveying mechanism (1). The folding box mechanism (4) is a pair and is respectively arranged on the first base plate (13) and the second base plate (14). The folding box mechanism (4) includes a folding ear lever (41), a folding ear guide (42), and a gluing box assembly (43) arranged sequentially along the conveying direction of the paper box (10). A tongue assembly (44) is provided on one side of the gluing box assembly (43). The folding ear lever (41) is driven by a rotary drive device to move the second folding ear (102) to gradually fold towards the box opening, so that the folding ear guide (42) abuts against the first folding ear (101) and the second folding ear (102). The gluing assembly (43) includes a first lid limiting piece (431) and a second lid lever (432). The first end of the first lid limiting piece (431) is rotated 90° from the vertical direction around the horizontal direction to form a guide slope (4311). The first lid (103a) of the paper box (10) is gradually folded upward under the action of the first lid limiting piece (431), so that the glue spraying device sprays glue on the outer surface of the second lid (103b) of the paper box (10). The tongue assembly (44) includes a folding cap limiting member (441), a tongue pre-folding piece (442), and a tongue pusher piece (443). The clamping mechanism (5) includes a fixed clamping rod (51), a first movable clamping rod (52), a second movable clamping rod (53), and a third movable clamping rod (54). The fixed clamping rod (51) is fixedly mounted on the carrier (2). The first movable clamping rod (52) is slidably mounted on one side of the fixed clamping rod (51) along the X-axis direction. The second movable clamping rod is slidably mounted on the carrier (2) relative to the fixed clamping rod (51) along the Y-axis direction. The third movable clamping rod (54) is slidably mounted on the carrier (2) along the X and Y axes. At the intersection of the first movable clamping rod (52) and the second movable clamping rod (53), the first movable clamping rod (52) and the third movable clamping rod (54) are driven to move along the X-axis direction by the X-axis linear module (211), and the second movable clamping rod (53) and the third movable clamping rod (54) are driven to move along the Y-axis direction by the Y-axis linear module (221), so that the fixed clamping rod (51), the first movable clamping rod (52), the second movable clamping rod (53), and the third movable clamping rod (54) enclose a clamping space for clamping the paper box; One of the clamping mechanisms (5) is provided with several positioning detection modules. The several positioning detection modules are respectively set on the first movable clamping rod (52), the second movable clamping rod (53) and the third movable clamping rod (54). When the clamping mechanism (5) clamps the paper box, it outputs the detection data of the corresponding position through the several positioning detection modules to obtain the length, width and height dimension data of the current paper box, so that the station dimensions of the storage mechanism (3), the folding mechanism (4) and the several clamping mechanisms (5) are adjusted to match the current paper box size.

2. The fully automatic cartoning machine for gluing and inserting boxes according to claim 1, characterized in that, The first base plate (13) and the second base plate (14) have a conveying channel (15) through which the clamping mechanism (5) passes. The second base plate (14) is driven to move horizontally by a sliding drive device to adjust the distance between it and the first base plate (13) according to the size of the carton. A reference positioning block (16) is fixedly provided on the opposite surface of the first base plate (13) and the second base plate (14), and the outer edge of the reference positioning block (16) forms a positioning origin with the surface of the fixed clamp (51).

3. The fully automatic cartoning machine for gluing and inserting boxes according to claim 1, characterized in that, The inner side of the annular conveying mechanism (1) is provided with a sliding contact line. The bottom of the plurality of carriers is respectively fixed with brushes that slide in cooperation with the sliding contact line. A power module is provided on the carrier. The power module is electrically connected to the clamping mechanism (5), the positioning detection module, and the brushes respectively. The external power supply supplies power to the power module by the brushes of the carrier sliding in contact with the sliding contact line.

4. The fully automatic cartoning machine for gluing and inserting boxes according to claim 1, characterized in that, The storage mechanism (3) includes a support platform (31), a paper box support assembly (32), and a paper box retrieval nozzle (33). The support platform (31) is mounted above the annular conveying mechanism (1). The paper box support assembly (32) is mounted on the support platform (31) to support and stack flat paper boxes (10). The support platform (31) has a paper box retrieval channel (311) in the middle for the paper box (10) to pass through. The paper box retrieval nozzle (33) is vertically mounted below the support platform (31). The lifting drive device drives the paper box retrieval nozzle (33) to place the bottom paper box (10) of the paper box support assembly (32) between the first base plate (13) and the second base plate (14). The paper box support assembly (32) includes a first paper support piece (321), a second paper support piece (322), a third paper support piece (323), and a fourth paper support piece (324). The first paper support piece (321) is fixedly disposed on the front end of the box retrieval channel (311), and the second paper support piece (322) is slidably disposed on the rear end of the box retrieval channel (311) so that the first paper support piece (321) and the second paper support piece (322) are used to support the front and rear sides of the flat paper box (10). The third paper support piece (323) and the fourth paper support piece (324) are slidably disposed on both sides of the box retrieval channel (311) so that the third paper support piece (323) and the fourth paper support piece (324) are used to support the left and right ends of the flat paper box (10).

5. A fully automatic cartoning machine for gluing and inserting boxes according to claim 4, characterized in that, A pair of height adjustment rods (6) are provided above the annular conveying mechanism (1) in a height-adjustable manner. One end of the height adjustment rod (6) extends to the lower rear end of the storage mechanism (3), and the end of the height adjustment rod (6) is provided with a box support guide surface (61). When the flat paper box (10) falls, it applies a pressure through the side wall of the box support guide surface (61) to make the flat paper box (10) gradually unfold.

6. The fully automatic cartoning machine for gluing and inserting boxes according to claim 1, characterized in that, The gluing assembly (43) is located at the end of the folding guide piece (42) and is used to glue the second lid (103b) of the paper box to the first lid (103a).

7. The fully automatic cartoning machine for gluing and inserting boxes according to claim 1, characterized in that, The first lid limiting piece (431) is connected to the end of the folding guide piece (42), and the second lid lever (432) is pivotally connected to the end of the first lid limiting piece (431). The second lid lever (432) is driven by the swing drive device to push the second lid (103b) of the paper box (10) to fold down and stick to the first lid (103a) of the paper box (10).

8. The fully automatic cartoning machine for gluing and inserting boxes according to claim 1, characterized in that, The top end of the folding limiter (441) is bent upward and provided with a box lid pre-folding part (4411), so that the box lid (103) of the paper box (10) is gradually folded downward under the action of the box lid pre-folding part (4411), and abuts against the box lid (103) through the folding limiter (441). The tongue pre-folding piece (442) is slidably disposed below the first end of the folding cover limiting member (441). The tongue pre-folding piece (442) is driven by the tongue driving device to extend and cause the tongue (104) on the box cover (103) to fold towards the box opening. The tongue pusher (443) is slidably disposed at the end of the folding cover limiting member (441), and a tongue limiting block (4432) is provided between the tongue pre-folding piece (442) and the tongue pusher (443), so that the connection between the tongue (104) and the box cover (103) abuts against the side wall of the tongue limiting block (4432). The pusher driving device drives the tongue pusher (443) to push the box cover (103) to insert the tongue (104) into the box opening.

9. A method for positioning cardboard boxes using a fully automatic gluing and inserting carton machine as described in any one of claims 1-4, characterized in that, The steps include the following: S101. Place the sample paper box on the first base plate, align the end face of the sample paper box with the outer edge of the reference positioning block, and then attach the side of the sample paper box to the surface of the fixing clamp rod to complete the initial positioning of the sample paper box. S102. Start the clamping mechanism and positioning detection module, and drive the first movable clamping rod, the second movable clamping rod, and the third movable clamping rod to move towards the fixed clamping rod through the X-axis linear module and the Y-axis linear module. S103. When the positioning detection module on the first or third movable clamping rod detects the corresponding side of the sample paper box, it immediately feeds back the signal to the control system and stops moving. Combined with the preset position parameters between the fixed clamping rod and the reference positioning block, it accurately calculates the actual length of the sample paper box in the X-axis direction. When the third movable clamping rod gradually approaches the sample paper box and contacts its side under the drive of the Y-axis linear module, the positioning detection module will immediately trigger a signal and stop moving, and feed the signal back to the control system, so that the clamping mechanism clamps the sample paper box. The positioning detection module on the second movable clamping rod calculates the width of the sample paper box based on the round-trip time of the measuring laser. The positioning and detection module on the fixed clamping rod emits a laser vertically downward to the top surface of the cardboard box, and calculates the height of the cardboard box by measuring the round-trip time of the laser. S104. After several positioning and detection modules have collected the three-dimensional specifications of the sample paper box (length, width, and height), the control system uses the size information as standard parameters to synchronously send it to the clamping mechanisms on all carriers, as well as the storage mechanism, the second base plate, and the height adjustment rod, to coordinate and adjust them according to the unified size standard.

10. The paper box positioning method according to claim 9, characterized in that, In S104, a gap value is set between the second movable clamping rod, the third movable clamping rod of the carrier and the cardboard box: Based on the aforementioned gap value S, the displacement trigger values ​​of the second and third movable clamping rods are obtained: C Where D is the actual height of the side of the cardboard box, A is the angle between the side of the cardboard box and the bottom of the cardboard box, and L is the actual width of the measured sample cardboard box.

11. The paper box positioning method according to claim 10, characterized in that, The angle between the side of the cardboard box and the bottom of the cardboard box is less than 89.72°.

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