A cornering device

Abstract

The application provides a corner pasting device and relates to the technical field of paper box forming machines, which comprises a cabinet body and further comprises a corner pasting assembly, a corner positioning assembly, an upper die assembly, a discharging assembly and a feeding assembly arranged in the cabinet body; in the application, the corner positioning assembly drives the support seat to move, so that the folding edge guide block is accurately positioned to the paperboard corner; the paperboard passes through the first and second folding edge guide blocks arranged at the corner to complete bidirectional folding edge, the forming guide is provided for the paperboard folding edge box forming process, the paperboard corner forming is ensured to be regular, four groups of corner pasting assemblies are synchronously operated corresponding to the four corners of the paperboard, the adhesive tape conveying mechanism conveys the adhesive tape to the specified position, the first and second clamping pieces clamp the adhesive tape under the driving of the third and fourth cylinders, the adhesive tape is ensured to be tensioned without deviation, then the first and second cylinders push the push plate to press the adhesive tape on the surface of the paperboard, after the corner pasting is completed, the cutter is cut off under the action of the matched driving cylinder, and through the secondary transmission, the accurate and efficient corner pasting of the paperboard box corner is realized.

Description

Technical Field

[0001] This invention relates to the field of paper box forming machine technology, and in particular to a corner attaching device. Background Technology

[0002] To address the need for packaging boxes to be connected to cardboard and gray board using corner tape, traditional manual corner tape application is inefficient, inaccurate in positioning, and difficult to guarantee consistency. Therefore, there is an urgent need for an automated corner tape application device to achieve fast, accurate, and precise fixed-length tape feeding, application, and cutting of cardboard box corners, thereby ensuring crisp edges and square angles, significantly improving production efficiency and product quality.

[0003] However, in actual use, the following shortcomings still exist. For example, traditional corner-attaching devices are mostly right-angle mechanisms that push the cardboard box to attach the two corners in one go. Although the structure is simple, it is prone to problems such as tape wrinkling, corner misalignment, and incomplete adhesion. This device adopts a two-stage transmission and two-sided, two-action corner-attaching method. First, the tape is fed, folded, and pressed on one side of the cardboard box. Then, the other side is attached in a second operation. This method can significantly reduce the force interference when attaching corners on a single side and avoid stress deformation caused by synchronous right-angle pushing. The tape and cardboard are attached more smoothly and tightly, effectively reducing air bubbles and curling. The two-stage transmission combined with servo precision positioning can adapt to cardboard boxes of different thicknesses and sizes. The corner-attaching accuracy and consistency are higher, and the product qualification rate is significantly improved. At the same time, the step-by-step action reduces the stringent requirements for the synchronization of the mechanism, making the operation more stable and the failure rate lower. The overall corner-attaching quality and equipment adaptability are better than the traditional right-angle pushing structure.

[0004] Therefore, the present invention proposes a corner-attaching device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and to propose a corner-adhesive device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a corner-adhesive device, comprising a cabinet body, and further comprising: The corner attaching assembly, corner positioning assembly, upper mold assembly, material feeding assembly, and material loading assembly are installed inside the cabinet. The corner attaching assembly is provided in four sets, and the four sets of corner attaching assemblies correspond one-to-one with the four corners of the cardboard. Each set of corner attaching assemblies includes a tape attaching mechanism, a support base, a first folding guide block, a second folding guide block, a first cylinder, a first push plate, a second cylinder, a second push plate, a third cylinder, a first clamping component, a fourth cylinder, a second clamping component, and a cutter. The tape conveyor mechanism is fixedly installed on one side of the cabinet. The support base is detachably connected to the side of the cabinet near the tape conveyor mechanism by bolts. The support base is also connected to the corner positioning component and is driven to move by the corner positioning component. The first folding guide block and the second folding guide block are both fixed to the same side of the support base by welding and are set at an angle. The first and second cylinders are mounted parallel to each other on the support base, with their output ends facing the folding guide block. The first push plate is connected to the output end of the first cylinder, and the second push plate is connected to the output end of the second cylinder. The first and second push plates are respectively arranged corresponding to the first and second folding guide blocks. The third and fourth cylinders are respectively mounted on both sides of the support base. The first clamping member is fixedly connected to the output end of the third cylinder, and the second clamping member is fixedly connected to the output end of the fourth cylinder. The cutter is mounted on the support base near the first clamping member via a support, with the blade facing the conveyor belt direction. The cutter is equipped with a drive cylinder.

[0007] Furthermore, the corner positioning component includes a bracket, a first servo motor, a bidirectional lead screw, a first movable seat, a first guide rail, a second servo motor, a ball screw, and a second guide rail. The bracket is fixed to the cabinet body near the bottom of the corner mounting component by bolts. The first servo motor is fixedly mounted on one end of the bracket by a motor mount. The bidirectional lead screw is connected to the output end of the first servo motor by a coupling, and both ends of the bidirectional lead screw are rotatably connected to the bracket by bearing seats.

[0008] The beneficial effects of adopting the above-mentioned further solution are: the bracket is fixed to the cabinet body near the corner assembly by bolts, serving as the installation base for the positioning mechanism; the first servo motor is fixed to one end of the bracket by a motor mount, and drives the bidirectional lead screw to rotate via a coupling.

[0009] Furthermore, the first guide rail is set parallel to the bidirectional lead screw and is fixed to the top of the bracket by bolts. The first movable seat is threadedly connected to the bidirectional lead screw through a threaded sleeve and is slidably connected to the first guide rail through a slider. The first servo motor drives the bidirectional lead screw to rotate, thereby causing the first movable seat to move horizontally along the first guide rail.

[0010] The beneficial effects of adopting the above-mentioned further solution are: the bearing seats at both ends of the lead screw ensure stable operation, drive the first moving seat connected to the lead screw to move horizontally along the first parallel guide rail, realize precise adjustment in the X-axis direction, provide stable support for the four sets of corner-attaching components to align the edges and corners of the cardboard, and effectively improve the positioning accuracy and equipment operation stability.

[0011] Furthermore, the second servo motor is fixedly mounted on the first movable seat via a motor mount. The ball screw is connected to the output end of the second servo motor via a coupling, and both ends of the ball screw are rotatably connected to the first movable seat via bearing seats. The ball screw and the bidirectional screw are arranged perpendicularly. The second guide rail is arranged parallel to the ball screw and is fixed to the top of the first movable seat by bolts. The support seats of the four sets of corner fitting components are all threadedly connected to the ball screw via threaded sleeves, and are slidably connected to the second guide rail via sliders. The second servo motor drives the ball screw to rotate, causing the support seats to move horizontally along the second guide rail.

[0012] The beneficial effects of adopting the above-mentioned further solution are as follows: The second servo motor is fixed on the first moving seat and drives the ball screw to rotate through the coupling. The ball screw and the bidirectional screw are vertically distributed and limited at both ends by bearing seats. The support seats of the four sets of corner attaching components are all connected to the ball screw through threaded sleeves and slide along the parallel second guide rail to realize Y-axis adjustment, drive the corner attaching components to move synchronously, accurately align the four corners of the cardboard, adapt to the corner attaching requirements of cardboard of different sizes, and ensure that the corner attaching position is accurate and without deviation.

[0013] Furthermore, the upper mold assembly is located inside the cabinet at the top of the corner fitting assembly. The upper mold assembly includes a support block, a third servo motor, a gear, a sliding strip, a rack, and a pressure head. The support block is fixed to the inner wall of the cabinet by bolts. The third servo motor is fixedly mounted on the support block by a motor mount. The gear is fixed to the output end of the third servo motor by a key connection.

[0014] The beneficial effects of adopting the above-mentioned further solution are as follows: the support block is fixed to the inner side wall of the cabinet by bolts, providing a stable installation support for the upper mold mechanism; the third servo motor is fixed to the support block by the motor base, driving the gear to rotate; through the precise meshing of the gear and rack, the sliding bar is driven to move vertically up and down along the support block; the pressure head rises and falls synchronously with the rack; the elastic buffer layer at the bottom of the pressure head can avoid damaging the surface of the cardboard; and in conjunction with the first folding guide block and the second folding guide block, the cardboard is initially pressed and shaped.

[0015] Furthermore, the sliding bar is slidably connected to the support block via a slider, and the sliding bar can move up and down in the vertical direction. The rack is fixed to the sliding bar near the gear by bolts, and the gear and rack mesh with each other. The pressure head is detachably connected to the bottom of the rack by bolts, and an elastic buffer layer is provided at the bottom of the pressure head.

[0016] The advantages of adopting the above-mentioned further solutions are: the sliding bar is slidably connected to the support block through the slider, reducing moving friction and ensuring smooth up and down movement without deviation; the rack is fixed to the side of the sliding bar near the gear by bolts, and precisely meshes with the gear to ensure transmission synchronization and stability; the pressure head adopts a detachable design, which is convenient for replacement and maintenance according to the cardboard specifications and adapts to the corner-fitting requirements of different sized cardboards; the bottom elastic buffer layer takes into account both the pressing effect and the protection of the cardboard, avoiding damage to the cardboard caused by hard contact.

[0017] Furthermore, the material feeding assembly is located on the side of the cabinet body away from the corner-attaching assembly. The material feeding assembly includes a stepper motor, a rotating shaft, sprockets, a chain, a second moving seat, a guide rod, a limiting block, and a placement plate. The stepper motor is fixedly installed on the inner bottom of the cabinet body via a motor mount. The rotating shaft is connected to the output end of the stepper motor via a coupling. There are two sets of sprockets, which are respectively fixed to the rotating shaft and the driven shaft inside the cabinet body via keys. The chain is sleeved on the two sets of sprockets to form a closed-loop transmission structure.

[0018] The beneficial effects of adopting the above-mentioned further solution are as follows: the stepper motor is fixed to the bottom of the cabinet through the motor base and serves as the power source for transmission. It drives the rotating shaft to rotate through the coupling, thereby driving two sets of sprockets and chains to form a closed-loop transmission. The second moving seat is fixed on the chain and moves synchronously with the chain. The guide rod is set parallel to the chain and guides it to avoid movement deviation. The placement plate is used to support the corner cardboard to be pasted. The limiting block adjusts the angle by rotating the rotating shaft, which facilitates the picking and placing of the placement plate.

[0019] Furthermore, the guide rod is arranged parallel to the chain and fixed in the cabinet body near the chain by a support. The second movable seat is fixed to the chain by bolts and slidably connected to the guide rod by a sliding sleeve. The limiting block is rotatably connected to the second movable seat by a rotating shaft. A positioning groove is provided on the placement plate corresponding to the limiting block, and the limiting block is placed in the positioning groove.

[0020] The beneficial effects of adopting the above-mentioned further solution are as follows: the guide rod is fixed in the cabinet by the support and set parallel to the chain to provide stable guidance for the second moving seat, ensuring that it moves smoothly along the set trajectory. The limit block is embedded in the positioning groove of the placement plate to improve the limit stability and prevent the cardboard from sliding and deviating during the conveying process. The stepper motor can accurately control the conveying speed and work in coordination with the feeding component and the corner attaching component to realize the continuous and efficient conveying of the cardboard, ensuring the smooth connection of the entire corner attaching process and improving the working efficiency of the equipment.

[0021] Furthermore, the feeding assembly is located at the inner top of the cabinet. The feeding assembly includes a moving mechanism, a fifth cylinder, a suction plate, and a feeding linkage mechanism. The moving mechanism is a linear module, which is fixed to the inner top of the cabinet with bolts. The fifth cylinder is fixed to the slider of the moving mechanism with a mounting plate, and its output end faces downward. The suction plate is fixedly connected to the output end of the fifth cylinder with a connecting seat and is connected to an external negative pressure device. The feeding linkage mechanism is fixed to the inner top of the cabinet with a support and is located between the upper mold assembly and the moving mechanism. The feeding linkage mechanism is a synchronous belt drive structure.

[0022] The beneficial effects of adopting the above-mentioned further solution are as follows: The linear module, as a moving mechanism, is fixed to the top of the cabinet with bolts, driving the fifth cylinder and the suction plate to move horizontally, realizing rapid switching of workstations. The fifth cylinder is fixed to the module slider through the mounting plate, driving the suction plate to move up and down. The suction plate is connected to the external negative pressure equipment to generate stable suction to adsorb the cardboard, avoiding damage to the cardboard surface. The feeding linkage mechanism adopts synchronous belt drive and is fixed between the upper mold assembly and the moving mechanism. It works with the suction plate to smoothly transport the cardboard to the unloading assembly, improving the automation level of feeding and the stability of conveying.

[0023] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, the corner-attaching device uses a cabinet as the installation carrier and has four sets of corner-attaching components, corner positioning components, and other functional components built in. The corner positioning components drive the support base to move, so that the folding guide block is accurately aligned with the corner of the cardboard. The cardboard completes bidirectional folding through the first and second folding guide blocks set at the angle, which guides the cardboard in the process of folding it into a box, ensuring that the corners of the cardboard are formed neatly. The four sets of corner-attaching components work synchronously for the four corners of the cardboard. The tape conveyor conveys the tape to the designated position. The first and second clamping parts clamp the tape under the drive of the third and fourth cylinders to ensure that the tape is taut and does not deviate. Then, the first and second cylinders push the push plate to press the tape tightly onto the surface of the cardboard. After corner-attaching is completed, the cutter cuts the tape under the action of the matching drive cylinder. Through two-stage transmission, the precise and efficient corner-attaching of the cardboard box corners is achieved.

[0024] 2. In this invention, when the upper mold assembly is working, the support block is fixed to the inner side wall of the cabinet by bolts, providing a stable installation foundation for the overall mechanism. The third servo motor is fixed on the support block and drives the gear to rotate. Through the meshing transmission of the gear and rack, the sliding bar moves up and down along the vertical direction of the support block. The pressure head rises and falls synchronously with the rack. The elastic buffer layer at the bottom of the pressure head can prevent damage to the cardboard surface. In cooperation with the first folding guide block and the second folding guide block, the tape and cardboard are pressed and initially shaped. The sliding bar is slidably connected to the support block through the slider to reduce friction and ensure smooth movement. The rack and gear mesh precisely to improve transmission accuracy and stability. The pressure head adopts a detachable structure, which can be quickly replaced according to different cardboard specifications, making it highly adaptable. At the same time, it effectively prevents cardboard damage caused by hard contact, improving corner bonding quality and finished product qualification rate.

[0025] 3. In this invention, when the feeding assembly is working, the stepper motor is fixed to the bottom of the cabinet via a motor mount. As a power source, it drives the rotating shaft to rotate through a coupling, which in turn drives two sets of sprockets and chains to form a closed-loop transmission. The second moving seat moves synchronously with the chain, and the guide rod provides stable guidance to prevent deviation. The placement plate carries the cardboard to be pasted, and the limiting block is embedded in the positioning groove to improve stability and prevent the cardboard from sliding. Its rotatable design facilitates picking and placing. In the feeding assembly, the linear module drives the fifth cylinder and the suction plate to switch horizontally. The cylinder drives the suction plate to rise and fall, and the cardboard is adsorbed by negative pressure to avoid damage. The feeding linkage mechanism works with the suction plate to smoothly transport the cardboard to the feeding assembly. The two work together with the corner pasting assembly to achieve continuous and efficient cardboard transport, ensure a smooth corner pasting process, and improve equipment automation and work efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a corner-attaching device according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a corner-attaching device according to the present invention; Figure 3 This is a schematic diagram of the corner-attaching component structure of a corner-attaching device according to the present invention; Figure 4 This is a schematic diagram showing the disassembled structure of the corner-attaching component of the corner-attaching device according to the present invention; Figure 5 This is a schematic diagram of the corner positioning component structure of a corner-attaching device according to the present invention; Figure 6 This is a schematic diagram of the upper mold assembly structure of the corner-attaching device of the present invention; Figure 7 This is a schematic diagram of the feeding structure of a corner-attaching device according to the present invention; Figure 8 This is a schematic diagram of the material feeding assembly structure of a corner-attaching device according to the present invention; Figure 9 This is a schematic diagram of the feeding assembly structure of a corner-attaching device according to the present invention.

[0027] Figure label: 1. Cabinet; 2. Corner attaching assembly; 21. Adhesive tape conveyor mechanism; 22. Support base; 23. First folding guide block; 24. Second folding guide block; 25. First cylinder; 26. First push plate; 27. Second cylinder; 28. Second push plate; 29. ​​Third cylinder; 210. First clamp; 211. Fourth cylinder; 212. Second clamp; 213. Cutting knife; 3. Angle positioning assembly; 31. Bracket; 32. First servo motor; 33. Bidirectional lead screw; 34. First moving seat; 35. First guide rail; 36. Second servo motor; 37. Ball screw; 38. Second guide rail; 4. Upper mold assembly; 41. Support block; 42. Third servo motor; 43. Gear; 44. Sliding bar; 45. Rack; 46. Pressure head; 5. Feeding assembly; 51. Stepper motor; 52. Rotary shaft; 53. Sprocket; 54. Chain; 55. Second moving seat; 56. Guide rod; 57. Limit block; 58. Placement plate; 6. Feeding assembly; 61. Moving mechanism; 62. Fifth cylinder; 63. Suction plate; 64. Feeding linkage mechanism. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1-4 As shown, this embodiment provides a technical solution: a corner-adhesive device, including a cabinet 1, and further including: The corner-attaching component 2, corner-positioning component 3, upper mold component 4, material feeding component 5, and material feeding component 6 are installed inside the cabinet 1; The corner attaching assembly 2 is provided in four sets, and the four sets of corner attaching assemblies 2 correspond one to one of the four corners of the cardboard. Each set of corner attaching assemblies 2 includes a tape attaching mechanism 21, a support base 22, a first folding guide block 23, a second folding guide block 24, a first cylinder 25, a first push plate 26, a second cylinder 27, a second push plate 28, a third cylinder 29, a first clamping member 210, a fourth cylinder 211, a second clamping member 212, and a cutter 213. The tape conveyor mechanism 21 is fixedly installed inside the cabinet 1 on one side. The support base 22 is detachably connected to the side of the cabinet 1 near the tape conveyor mechanism 21 by bolts. The support base 22 is also connected to the corner positioning component 3 and is driven to move by the corner positioning component 3. The first folding guide block 23 and the second folding guide block 24 are both fixed to the same side of the support base 22 by welding and are set at an angle. The first cylinder 25 and the second cylinder 27 are installed parallel to each other on the support base 22, with their output ends facing the folding guide block. The first push plate 26 is connected to the output end of the first cylinder 25, and the second push plate 28 is connected to the output end of the second cylinder 27. The first push plate 26 and the second push plate 28 are respectively set to correspond to the first folding guide block 23 and the second folding guide block 24. The third cylinder 29 and the fourth cylinder 211 are respectively installed on both sides of the support base 22. The first clamping member 210 is fixedly connected to the output end of the third cylinder 29, and the second clamping member 212 is fixedly connected to the output end of the fourth cylinder 211. The cutter 213 is set on the support base 22 near the first clamping member 210 through a support, with the blade of the cutter 213 facing the conveyor belt direction. The cutter 213 is equipped with a drive cylinder. This corner-fitting device uses the cabinet 1 as the installation carrier. The system includes four sets of corner-attaching components 2 and corner positioning components 3. The corner positioning components 3 drive the support base 22 to move, so that the folding guide block is precisely aligned with the corner of the cardboard. The cardboard completes bidirectional folding through the first folding guide block 23 and the second folding guide block 24 set at the angle, which guides the cardboard during the folding process to ensure that the corners of the cardboard are formed neatly. The four sets of corner-attaching components 2 work synchronously for the four corners of the cardboard. The tape conveyor mechanism 21 delivers the tape to the designated position. The first clamp 210 and the second clamp 212 clamp the tape under the drive of the third and fourth cylinders 211 to ensure that the tape is taut and does not shift. Then, the first cylinder 25 and the second cylinder 27 push the push plate to press the tape firmly onto the surface of the cardboard. After corner attaching is completed, the cutter 213 cuts the tape under the action of the matching drive cylinder. Through two-stage transmission, the precise and efficient corner attaching of the cardboard box is achieved.

[0030] like Figures 1-3 as well as Figure 5As shown, the corner positioning assembly 3 includes a bracket 31, a first servo motor 32, a bidirectional lead screw 33, a first movable seat 34, a first guide rail 35, a second servo motor 36, a ball screw 37, and a second guide rail 38. The bracket 31 is fixed to the cabinet 1 near the bottom of the corner-adhesive assembly 2 by bolts. The first servo motor 32 is fixedly mounted on one end of the bracket 31 by a motor mount. The bidirectional lead screw 33 is connected to the output end of the first servo motor 32 by a coupling, and both ends of the bidirectional lead screw 33 are rotatably connected to the bracket 31 by bearing seats. The bracket 31 is fixed to the cabinet 1 near the corner-adhesive assembly 2 by bolts, serving as the mounting base for the positioning mechanism. A servo motor 32 is fixed to one end of a bracket 31 via a motor mount and drives a bidirectional lead screw 33 to rotate via a coupling. A first guide rail 35 is set parallel to the bidirectional lead screw 33 and is fixed to the top of the bracket 31 by bolts. A first movable seat 34 is threadedly connected to the bidirectional lead screw 33 via a threaded sleeve and slidably connected to the first guide rail 35 via a slider. The first servo motor 32 drives the bidirectional lead screw 33 to rotate, causing the first movable seat 34 to move horizontally along the first guide rail 35. The two ends of the lead screw are supported by bearing seats to ensure stable operation. This allows the first movable seat 34, which is threadedly connected to the lead screw, to move horizontally along the parallel first guide rail 35, achieving precise adjustment in the X-axis direction. The four sets of corner-attaching components 2 provide stable support for aligning the edges and corners of the cardboard, effectively improving positioning accuracy and equipment operational stability. The second servo motor 36 is fixedly mounted on the first movable seat 34 via a motor mount. The ball screw 37 is connected to the output end of the second servo motor 36 via a coupling, and both ends of the ball screw 37 are rotatably connected to the first movable seat 34 via bearing seats. The ball screw 37 and the bidirectional screw 33 are arranged perpendicularly. The second guide rail 38 is parallel to the ball screw 37 and is fixed to the top of the first movable seat 34 by bolts. The support seats 22 of the four sets of corner-attaching components 2 are all threadedly connected to the ball screw 37 via threaded sleeves, and simultaneously connected via sliders. The second servo motor 36 drives the ball screw 37 to rotate, which in turn drives the support seat 22 to move horizontally along the second guide rail 38. The second servo motor 36 is fixed on the first moving seat 34 and drives the ball screw 37 to rotate through the coupling. The ball screw 37 and the bidirectional screw 33 are vertically distributed and limited by bearing seats at both ends. The support seats 22 of the four sets of corner attaching components 2 are all connected to the ball screw 37 through threaded sleeves and slide along the parallel second guide rail 38 to realize Y-axis adjustment, drive the corner attaching components 2 to move synchronously, accurately align the four corners of the cardboard, adapt to the corner attaching requirements of different sized cardboard, and ensure that the corner attaching position is accurate and without deviation. like Figures 1-2 as well as Figure 6As shown, the upper mold assembly 4 is located inside the cabinet 1, at the top of the corner-attaching assembly 2. The upper mold assembly 4 includes a support block 41, a third servo motor 42, a gear 43, a sliding bar 44, a rack 45, and a pressure head 46. The support block 41 is fixed to the inner wall of the cabinet 1 by bolts. The third servo motor 42 is fixedly mounted on the support block 41 by a motor mount. The gear 43 is fixed to the output end of the third servo motor 42 by a key connection. The support block 41 is fixed to the inner wall of the cabinet 1 by bolts, providing a stable installation support for the upper mold mechanism. The third servo motor 42 is fixed to the support block 41 by a motor mount, driving the gear 43 to rotate. Through the precise meshing of the gear 43 and the rack 45, the sliding bar 44 is driven to move vertically up and down along the support block 41. The pressure head 46 rises and falls synchronously with the rack 45. The elastic buffer layer at the bottom of the pressure head 46 can prevent damage to the cardboard surface. It works in conjunction with the first folding guide block 23 and the second... The folding guide block 24 performs initial pressing and shaping of the cardboard. The sliding bar 44 is slidably connected to the support block 41 via a slider, and the sliding bar 44 can move up and down vertically. The rack 45 is fixed to the sliding bar 44 near the gear 43 by bolts. The gear 43 and the rack 45 mesh with each other. The pressure head 46 is detachably connected to the bottom of the rack 45 by bolts. The bottom of the pressure head 46 is provided with an elastic buffer layer. The sliding bar 44 is slidably connected to the support block 41 via a slider to reduce movement friction and ensure smooth up and down movement without deviation. The rack 45 is fixed to the sliding bar 44 near the gear 43 by bolts and meshes precisely with the gear 43 to ensure transmission synchronization and stability. The pressure head 46 adopts a detachable design, which is convenient for replacement and maintenance according to the cardboard specifications and adapts to the corner-fitting requirements of different sized cardboards. The bottom elastic buffer layer takes into account both the pressing effect and the protection of the cardboard, avoiding damage to the cardboard caused by hard contact. like Figure 2 as well as Figures 7-8As shown, the feeding assembly 5 is located inside the cabinet 1 on the side away from the corner-attaching assembly 2. The feeding assembly 5 includes a stepper motor 51, a rotating shaft 52, a sprocket 53, a chain 54, a second moving seat 55, a guide rod 56, a limiting block 57, and a placement plate 58. The stepper motor 51 is fixedly installed on the inner bottom of the cabinet 1 via a motor mount. The rotating shaft 52 is connected to the output end of the stepper motor 51 via a coupling. Two sets of sprockets 53 are provided, and the two sets of sprockets 53 are respectively fixed to the rotating shaft 52 and the cabinet 1 via keys. On the driven shaft, chain 54 is sleeved on two sets of sprockets 53, forming a closed-loop transmission structure. Stepper motor 51 is fixed to the bottom of cabinet 1 through motor base, serving as a power source. It drives shaft 52 to rotate via coupling, driving the two sets of sprockets 53 and chain 54 to form a closed-loop transmission. Second movable seat 55 is fixed on chain 54 and moves synchronously with chain 54. Guide rod 56 is set parallel to chain 54 and guides it to prevent movement deviation. Placement plate 58 is used to support corner cardboard to be pasted. Limiting block The angle of the placement plate 58 is adjusted by rotating the shaft 52, which facilitates the picking and placing of the placement plate 58. The guide rod 56 is set parallel to the chain 54 and is fixed in the cabinet 1 near the chain 54 by the support. The second moving seat 55 is fixed to the chain 54 by bolts and is slidably connected to the guide rod 56 by the sliding sleeve. The limiting block 57 is rotatably connected to the second moving seat 55 by the rotating shaft. The placement plate 58 is provided with a positioning groove corresponding to the limiting block 57. The limiting block 57 is placed in the positioning groove. The guide rod 56 is fixed in the cabinet 1 by the bracket 31 and is set parallel to the chain 54 to provide stable guidance for the second moving seat 55 and ensure that it moves smoothly along the set trajectory. The limiting block 57 is embedded in the positioning groove of the placement plate 58 to improve the limiting stability and prevent the cardboard from sliding and deviating during the conveying process. The stepper motor 51 can accurately control the conveying speed and work together with the feeding component 6 and the corner attaching component 2 to realize the continuous and efficient conveying of the cardboard, ensure the smooth connection of the entire corner attaching process, and improve the working efficiency of the equipment. like Figure 2 , Figure 7 as well as Figure 9As shown, the feeding assembly 6 is located at the inner top of the cabinet 1. The feeding assembly 6 includes a moving mechanism 61, a fifth cylinder 62, a suction plate 63, and a feeding linkage mechanism 64. The moving mechanism 61 is a linear module, fixed to the inner top of the cabinet 1 by bolts. The fifth cylinder 62 is fixed to the slider of the moving mechanism 61 by a mounting plate, with its output end facing downwards. The suction plate 63 is fixedly connected to the output end of the fifth cylinder 62 by a connecting seat. The suction plate 63 is connected to an external negative pressure device. The feeding linkage mechanism 64 is fixed to the inner top of the cabinet 1 by a support and is located between the upper mold assembly 4 and the moving mechanism 61. 64 is a synchronous belt drive structure. The linear module serves as the moving mechanism 61 and is fixed to the top of the cabinet 1 by bolts. It drives the fifth cylinder 62 and the suction plate 63 to move horizontally, realizing rapid switching of workstations. The fifth cylinder 62 is fixed to the module slider by the mounting plate, which drives the suction plate 63 to move up and down. The suction plate 63 is connected to the external negative pressure equipment to generate a stable suction force to adsorb the cardboard and avoid damage to the cardboard surface. The feeding linkage mechanism 64 adopts synchronous belt drive and is fixed between the upper mold assembly 4 and the moving mechanism 61. It works with the suction plate 63 to smoothly transport the cardboard to the feeding assembly 5, improving the automation level of feeding and the stability of conveying.

[0031] Working principle: like Figures 1-9As shown, this device uses cabinet 1 as the overall mounting base and integrates five functional components: corner pasting, corner positioning, upper mold, feeding, and loading. Through the coordinated action of multiple mechanisms, it realizes the integrated operation of automatic corner folding, gluing, pressing, and cutting of cardboard boxes. The entire process of corner pasting of cardboard is completed automatically and with high precision. During operation, the stepper motor 51 in the feeding component 5 drives the sprocket 53 and chain 54 in a closed-loop transmission, which, together with the guide rod 56, ensures the smooth movement of the placement plate 58. The limit block 57 cooperates with the positioning groove to prevent the placement plate 58 from deviating. The cardboard is precisely conveyed to the feeding station. The feeding component 6 moves horizontally via a linear module, driving the cylinder and suction plate 63. Using external negative pressure suction, the cardboard to be processed on the placement plate 58 is smoothly picked up and precisely conveyed to the corner-fitting station. The corner positioning component 3 serves as a precise alignment mechanism. The first servo motor 32 drives the bidirectional lead screw 33 to move the first moving seat 34 to achieve X-axis direction adjustment. The second servo motor 36 drives the vertically arranged ball screw 37, which moves the support seats 22 of the four sets of corner-fitting components 2 along the second... Guide rail 38 enables Y-axis adjustment, ensuring precise alignment of the four corner-attaching components 2 with the four corners of the cardboard, adaptable to different cardboard sizes. During corner-attaching, the tape conveyor mechanism 21 stably transports the tape to the work position. The first clamp 210 and the second clamp 212 clamp the tape under the drive of corresponding cylinders, ensuring the tape is taut and does not shift. The first folding guide block 23 and the second folding guide block 24 provide bidirectional folding guidance for the cardboard corners, resulting in neat cardboard forming. The third servo motor 42 in the upper mold assembly 4... Gear 43 and rack 45 drive the pressure head 46 to press vertically downwards. The bottom elastic buffer layer presses the cardboard to complete the initial shaping. Then, the first cylinder 25 and the second cylinder 27 drive the push plate to press the tape tightly onto the corner of the cardboard. After corner pasting is completed, the cutter 213 cuts the tape under the action of the drive cylinder to complete single corner pasting. The four corner pasting components 2 work on the four corners of the cardboard simultaneously. The corner pasting, pressing and tape cutting actions are smooth and orderly. Each component is linked according to the set time sequence to achieve efficient, accurate and stable automated corner pasting of the cardboard box corners.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A corner-adhesive device, comprising a cabinet (1), characterized in that, Also includes: The corner-attaching component (2), corner positioning component (3), upper mold component (4), material feeding component (5) and material feeding component (6) are installed inside the cabinet (1). The corner attaching component (2) is provided in four sets. The four sets of corner attaching components (2) correspond one-to-one with the four corners of the cardboard. Each set of corner attaching components (2) includes a tape conveyor mechanism (21), a support base (22), a first folding guide block (23), a second folding guide block (24), a first cylinder (25), a first push plate (26), a second cylinder (27), a second push plate (28), a third cylinder (29), a first clamping member (210), a fourth cylinder (211), a second clamping member (212), and a cutter (213). The tape conveyor belt mechanism (21) is fixedly installed on one side inside the cabinet (1). The support base (22) is detachably connected to the side of the cabinet (1) near the tape conveyor belt mechanism (21) by bolts. The support base (22) is connected to the corner positioning component (3) and is driven to move by the corner positioning component (3). The first folding guide block (23) and the second folding guide block (24) are both fixed to the same side of the support base (22) by welding. The two are set at an angle. The first cylinder (25) and the second cylinder (27) are mounted parallel to each other on the support base (22), and their output ends face the side of the folding guide block. The first push plate (26) is connected to the output end of the first cylinder (25), and the second push plate (28) is connected to the output end of the second cylinder (27). The first push plate (26) and the second push plate (28) are respectively corresponding to the first folding guide block (23) and the second folding guide block (24). The third cylinder (29) and The fourth cylinder (211) is installed on both sides of the support base (22). The first clamping member (210) is fixedly connected to the output end of the third cylinder (29). The second clamping member (212) is fixedly connected to the output end of the fourth cylinder (211). The cutter (213) is set on the support base (22) near the first clamping member (210) through a support. The blade of the cutter (213) faces the conveyor belt direction. The cutter (213) is equipped with a drive cylinder.

2. The corner-attaching device according to claim 1, characterized in that: The corner positioning component (3) includes a bracket (31), a first servo motor (32), a bidirectional lead screw (33), a first moving seat (34), a first guide rail (35), a second servo motor (36), a ball screw (37), and a second guide rail (38). The bracket (31) is fixed to the side of the cabinet (1) near the bottom of the corner fitting component (2) by bolts. The first servo motor (32) is fixedly installed at one end of the bracket (31) by a motor seat. The bidirectional lead screw (33) is connected to the output end of the first servo motor (32) by a coupling, and the two ends of the bidirectional lead screw (33) are rotatably connected to the bracket (31) by bearing seats.

3. A corner-attaching device according to claim 2, characterized in that: The first guide rail (35) is set parallel to the bidirectional lead screw (33) and is fixed to the top of the bracket (31) by bolts. The first movable seat (34) is threadedly connected to the bidirectional lead screw (33) through a threaded sleeve and is slidably connected to the first guide rail (35) through a slider. The first servo motor (32) drives the bidirectional lead screw (33) to rotate, thereby driving the first movable seat (34) to move horizontally along the first guide rail (35).

4. A corner-attaching device according to claim 2, characterized in that: The second servo motor (36) is fixedly mounted on the first movable seat (34) via a motor mount. The ball screw (37) is connected to the output end of the second servo motor (36) via a coupling. Both ends of the ball screw (37) are rotatably connected to the first movable seat (34) via bearing seats. The ball screw (37) and the bidirectional screw (33) are arranged perpendicularly. The second guide rail (38) is arranged parallel to the ball screw (37) and is fixed to the top of the first movable seat (34) by bolts. The support seats (22) of the four sets of corner fitting components (2) are all threadedly connected to the ball screw (37) via threaded sleeves and slidably connected to the second guide rail (38) via sliders. The second servo motor (36) drives the ball screw (37) to rotate, causing the support seats (22) to move horizontally along the second guide rail (38).

5. A corner-attaching device according to claim 1, characterized in that: The upper mold assembly (4) is located inside the cabinet (1) at the top of the corner fitting assembly (2). The upper mold assembly (4) includes a support block (41), a third servo motor (42), a gear (43), a sliding bar (44), a rack (45), and a pressure head (46). The support block (41) is fixed to the inner wall of the cabinet (1) by bolts. The third servo motor (42) is fixedly mounted on the support block (41) by a motor mount. The gear (43) is fixed to the output end of the third servo motor (42) by a key connection.

6. A corner-attaching device according to claim 5, characterized in that: The sliding bar (44) is slidably connected to the support block (41) by a slider, and the sliding bar (44) can move up and down in the vertical direction. The rack (45) is fixed to the sliding bar (44) near the gear (43) by bolts. The gear (43) and the rack (45) mesh with each other. The pressure head (46) is detachably connected to the bottom of the rack (45) by bolts. An elastic buffer layer is provided at the bottom of the pressure head (46).

7. A corner-attaching device according to claim 1, characterized in that: The feeding assembly (5) is located inside the cabinet (1) on the side away from the corner fitting assembly (2). The feeding assembly (5) includes a stepper motor (51), a rotating shaft (52), a sprocket (53), a chain (54), a second moving seat (55), a guide rod (56), a limiting block (57), and a placement plate (58). The stepper motor (51) is fixedly installed at the bottom of the cabinet (1) through a motor mount. The rotating shaft (52) is connected to the output end of the stepper motor (51) through a coupling. There are two sets of sprockets (53). The two sets of sprockets (53) are respectively fixed to the rotating shaft (52) and the driven shaft inside the cabinet (1) through key connections. The chain (54) is sleeved on the two sets of sprockets (53) to form a closed-loop transmission structure.

8. A corner-attaching device according to claim 7, characterized in that: The guide rod (56) is set parallel to the chain (54) and fixed inside the cabinet (1) near the chain (54) by a support. The second movable seat (55) is fixed to the chain (54) by bolts and slidably connected to the guide rod (56) by a sliding sleeve. The limiting block (57) is rotatably connected to the second movable seat (55) by a rotating shaft. The placement plate (58) is provided with a positioning groove corresponding to the limiting block (57), and the limiting block (57) is placed in the positioning groove.

9. A corner-attaching device according to claim 1, characterized in that: The feeding assembly (6) is located at the top inner part of the cabinet (1). The feeding assembly (6) includes a moving mechanism (61), a fifth cylinder (62), a suction plate (63), and a feeding linkage mechanism (64). The moving mechanism (61) is a linear module and is fixed to the top inner part of the cabinet (1) by bolts. The fifth cylinder (62) is fixed to the slider of the moving mechanism (61) by a mounting plate, with its output end facing downward. The suction plate (63) is fixedly connected to the output end of the fifth cylinder (62) by a connecting seat. The suction plate (63) is connected to an external negative pressure device. The feeding linkage mechanism (64) is fixed to the top inner part of the cabinet (1) by a support and is located between the upper mold assembly (4) and the moving mechanism (61). The feeding linkage mechanism (64) is a synchronous belt drive structure.

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