Packaging box processing production line

Abstract

The invention discloses a processing production line of a packaging box. The processing production line comprises a processing table and an edge pressing unit, a machine box is fixed to the bottom face of the machining table, a machine cover is fixed to the top face of the machining table, maintenance doors are hinged to the surfaces of the machine box and the machine cover, a first conveyor is placed on the front side face of the machining table, a second conveyor is placed on the rear side face of the machining table, and a treatment table is placed at the right side end of the second conveyor. Negative pressure cavities are formed in the lower sides of conveying belts of the first conveyor and the second conveyor correspondingly, and according to the processing production line of the packaging boxes, accurate conveying of box bodies is guaranteed through intelligent sensing positioning (laser / infrared sensors) and a negative pressure conveying system; high-precision and damage-free blank pressing forming is realized by adopting a flexible blank pressing technology (an electric push rod, spring buffering and negative pressure adsorption); the pressing fixing unit, the detecting unit and the material pushing unit are integrated, integration of edge pressing, shape fixing and quality inspection is achieved, and the production efficiency and consistency are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of packaging box manufacturing, and in particular to a packaging box processing production line. Background Technology Packaging boxes, as the name suggests, are boxes used to package products. They can be classified by material, such as cardboard boxes, tin boxes, wooden boxes, cloth boxes, leather boxes, acrylic boxes, corrugated boxes, PVC boxes, etc., or by product name, such as mooncake boxes, tea boxes, goji berry boxes, candy boxes, exquisite gift boxes, local specialty product boxes, wine boxes, chocolate boxes, food, medicine, and health product boxes, food packaging boxes, tea packaging boxes, stationery boxes, etc. The functions of packaging boxes include ensuring product safety during transportation and enhancing product quality. During the packaging box manufacturing process, operations such as edge pressing, positioning, and shaping are typically required for the box body. Traditional production lines mostly use manual or semi-automated equipment. Manual operation can easily lead to box misalignment, affecting the edge pressing and forming quality. In particular, the edge processing of irregularly shaped boxes is inconsistent. Traditional mechanical edge pressing mechanisms have poor adaptability and cannot dynamically adjust pressure or position, which can easily cause box deformation or uneven indentation. Moreover, most equipment can only complete a single process (such as edge pressing or shaping). The production line has low integration and requires multiple machines to cooperate, which occupies a lot of space and is complicated to coordinate. Therefore, we propose a packaging box processing production line. Summary of the Invention

[0002] The technical problem to be solved by this invention is to overcome the existing defects and provide a packaging box processing line that ensures accurate box transport through intelligent sensing positioning (laser / infrared sensors) and a negative pressure conveying system; it adopts flexible edge pressing technology (electric push rod + spring buffer + negative pressure adsorption) to achieve high-precision and damage-free edge pressing and forming; it integrates pressing, detection and pushing units to realize edge pressing, solidification and quality inspection in one, which greatly improves production efficiency and consistency and can effectively solve the problems in the background technology.

[0003] To achieve the above objectives, the present invention provides the following technical solution: a packaging box processing line, including a processing table and an edge pressing unit; A first conveyor is placed on the front side of the processing table, a second conveyor is placed on the rear side of the processing table, and a processing table is placed on the right side of the second conveyor. Negative pressure chambers are opened on the lower side of the conveyor belts of the first and second conveyors. A limiting pressure box unit is provided on the top surface of the first conveyor, a pressing unit is provided on the top surface of the processing table, and a pushing unit is provided on the top surface of the processing table. The pressing unit includes a first electric push rod, a pressing box seat, a box support plate, and a second electric push rod. The first electric push rod is fixed inside the machine cover, and its bottom end is connected to the middle of the top surface of the pressing box seat. The second electric push rod is fixed inside the machine housing, and its top end passes through a through hole in the bottom surface of the processing table and is connected to the middle of the bottom surface of the box support plate. It also includes a controller, wherein the input ends of the first conveyor, the second conveyor, the first electric push rod, and the second electric push rod are electrically connected to the output end of the controller, and the input end of the controller is electrically connected to the output end of an external controller.

[0004] The first and second conveyors can transport packaging film and box body materials during the packaging box processing. The two sets of pressing units, one on the left and one on the right and the other on the front and back, can automatically adhere the packaging film to the surface of the box body to complete the initial packaging film bonding, thus solving the problem of poor consistency in traditional pressing treatment. The negative pressure chambers opened inside the first and second conveyors, together with the external fan, use negative pressure to adsorb the bottom surface of the conveyed packaging film, so that the packaging film is always fixed on the upper side of the conveyor belt to prevent displacement caused by external factors.

[0005] Furthermore, the limiting and pressing unit includes a first linear motor, a connecting rod, a mounting base, a laser positioning sensor, and a housing. The housing is fixed to the left side of the top surface of the first conveyor. The housing has first linear motors on both sides inside. The surface of the first linear motor's moving part is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the top surface of the mounting base. A laser positioning sensor is installed inside the mounting base. The input end of the first linear motor is electrically connected to the output end of the controller, and the output end of the laser positioning sensor is electrically connected to the input end of the controller. Activating the first linear motor adjusts the position of the laser positioning sensor inside the mounting base, effectively limiting the packaging film and preventing deviations when the robotic arm places the box.

[0006] Furthermore, the limiting and pressing box unit also includes an electric telescopic rod, a roller frame, a pressure roller, a support, a base, and an infrared positioning sensor. The support is fixed to the right side of the top surface of the first conveyor. The top surface of the support is equipped with an electric telescopic rod, the bottom end of which is connected to the middle of the top surface of the roller frame. A pressure roller is rotatably installed inside the roller frame. The base is installed on the rear side inside the support. An infrared positioning sensor is placed and snapped into place inside the base. The input end of the electric telescopic rod is electrically connected to the output end of the controller, and the output end of the infrared positioning sensor is electrically connected to the input end of the controller. The infrared positioning sensor can detect the conveyed box, thereby activating the electric telescopic rod to press the pressure roller inside the roller frame down onto the inside of the box to pre-press the packaging film and the box, facilitating subsequent production processing.

[0007] Furthermore, the pressing unit also includes a limiting frame, springs, roller seats, rollers, a frame, a push plate, a second linear motor, a support frame, a pressure plate, a third electric push rod, and a fixed base. The frame is fixed inside the processing table. Four roller seats are fixed inside the frame in pairs, with rollers rotatably mounted inside each roller seat. The limiting frame is fixed to the inner surface of the frame and slidably mounted to the outer side of the roller seats. Springs are fixed to both ends of the outer side of the roller seats, with the outer ends of the springs corresponding to the inner surface of the frame. Four fixed bases are fixed to the inner surface of the frame in pairs, with the fixed bases located below the roller seats. Third electric push rods are provided on both sides of the inner surface of each fixed base. The inner end of the first linear motor is connected to one end of the outer side of the pressure plate. The second linear motor is fixed inside the fixed base. The top surface of the second linear motor's moving base is connected to the middle of the bottom surface of the support frame. The top ends of both sides of the support frame are respectively connected to the two sides of the bottom surface of the push plate. The push plate is located between the roller seat and the pressure plate. The input ends of the second linear motor and the third electric push rod are electrically connected to the output end of the controller. The second electric push rod descends and cooperates with the first electric push rod to press down to fix the packaging film on the bottom surface of the box. The elasticity of the spring cooperates with the limiting frame to automatically make the roller stick the packaging film to the surface of the box. At the same time, the third electric push rod drives the pressure plate to increase the stability of the packaging film fixation. The second linear motor drives the push plate to move and press the packaging film onto the top surface of the box, thereby completing the bonding of the packaging film to the surface of the box.

[0008] Furthermore, the pressing unit also includes a negative pressure fan, a fan base, a vacuum chamber, and negative pressure suction holes. There are two vacuum chambers, each located on one side of the inside of the pressing box base. The negative pressure suction holes are evenly distributed on the left and right sides of the pressing box base and are connected to the vacuum chambers. There are two fan bases, each fixed on one side of the top surface of the pressing box base. A negative pressure fan is placed inside the pressing box base. The input end of the negative pressure fan is electrically connected to the output end of the controller. Activating the negative pressure fan inside the fan base creates a vacuum inside the vacuum chamber, which, together with the negative pressure suction holes, adsorbs the box onto the outside of the pressing box base. This prevents the box from falling during processing and allows for the placement and removal of the box according to the processing requirements.

[0009] Furthermore, the pressing unit includes hydraulic rods, a top pressure plate, a mounting frame, a positioning seat, rubber blocks, clamping plates, a fourth electric push rod, and a mounting plate. The mounting frame is fixed to the top surface of the processing table. Hydraulic rods are provided on both sides of the top surface of the mounting frame. The bottom end of the hydraulic rod is connected to one side of the top surface of the top pressure plate. The positioning seat is fixed to the middle of the top surface of the processing table. There are four mounting plates, which are respectively arranged around the four sides of the positioning seat and installed on the top surface of the processing table. A fourth electric push rod is provided at both ends of the surface of the mounting plate. The inner end of the fourth electric push rod is connected to one end of the outer side of the clamping plate. A rubber block is installed on the inner side of the clamping plate. The input ends of the hydraulic rods and the fourth electric push rods are electrically connected to the output end of the controller. The box is placed upside down on the outside of the positioning seat. The hydraulic rod is activated to drive the top pressure plate to press down. The fourth electric push rods around the box press the rubber blocks on the surface of the clamping plate to press and fix the packaging film on the surface of the box to prevent it from falling off due to poor adhesion.

[0010] Furthermore, the pressing unit also includes a stripping plate, a gear ring seat, a gear, an electric lifting rod, a fixing plate, and a motor. The electric lifting rod is fixed inside the positioning seat. The gear ring seat is located in the middle of the bottom surface of the stripping plate. The top end of the electric lifting rod is rotatably installed inside the gear ring seat. The fixing plate is installed on the outside of the electric telescopic rod. The bottom surface of the fixing plate is equipped with a motor. The output shaft of the motor is connected to the bottom end of the gear. The gear meshes with the gear ring seat. The stripping plate engages with the groove on the top surface of the positioning seat. The input ends of the electric lifting rod and the motor are electrically connected to the output end of the controller. Activating the electric telescopic rod can push out the pressed box for easy handling. The motor drives the gear to rotate and mesh with the gear ring seat, which in turn drives the stripping plate to rotate, facilitating visual inspection and defect detection to prevent damage to the packaging film from affecting the quality of the finished product.

[0011] Furthermore, the compaction unit also includes an illumination lamp, a defect camera, and a frame. The frame is fixed to the rear side of the mounting bracket. The defect camera is placed inside the frame. There are two illumination lamps, which are respectively installed on both sides of the top surface inside the frame. The input terminals of the illumination lamps and the defect camera are electrically connected to the output terminal of the controller. The illumination lamps provide illumination to the surface of the box, while the defect camera can perform defect detection on the surface of the box.

[0012] Furthermore, the pushing unit includes a rubber head, a pneumatic push rod, an adjusting seat, a lead screw, a fixed frame, a rotating wheel, and a slide frame. The fixed frame is fixed to the front side of the top surface of the processing table. A rotating wheel is provided on the surface of the fixed frame. The right end of the rotating wheel is connected to the left end of the lead screw. The lead screw is threaded into a screw hole on the surface of the adjusting seat. The adjusting seat is slidably connected to the top surface of the processing table. A pneumatic push rod is mounted on the top surface of the adjusting seat. A rubber head is fixedly mounted on the rear end of the pneumatic push rod. The pushing unit includes a rubber head, a pneumatic push rod, an adjusting seat, a lead screw, a fixed frame, a rotating wheel, and a slide frame. The fixed frame is fixed to the front side of the processing table. On the front side of the top surface of the table, the surface of the fixed frame is provided with a rotating wheel. The right end of the rotating wheel is connected to the left end of the lead screw. The lead screw is threaded into the screw hole on the surface of the adjusting seat. The adjusting seat is slidably connected to the top surface of the processing table. A pneumatic push rod is installed on the top surface of the adjusting seat. A rubber head is fixedly installed on the rear end of the pneumatic push rod. The slide frame is installed on the rear side of the top surface of the processing table. The input end of the pneumatic push rod is electrically connected to the output end of the controller. Rotating the rotating wheel drives the lead screw to rotate to adjust the position of the pneumatic push rod. Activating the pneumatic push rod pushes out the pressed box and, together with the slide frame, automatically drops it onto the surface of the second conveyor for conveying.

[0013] Furthermore, it also includes a rangefinder and a laser rangefinder sensor. There are two rangefinders, which are respectively installed on both sides of the bottom surface of the tray. The laser rangefinder sensor is placed inside the rangefinder. The output end of the laser rangefinder sensor is electrically connected to the input end of the controller. The laser rangefinder sensor can detect the height of the tray, thereby improving the accuracy of the tray lifting height.

[0014] In summary, compared with existing technologies, the processing line for this packaging box has the following advantages: 1. The first and second conveyors can transport materials such as packaging film and box body during the packaging box processing. The two sets of pressing units, one on the left and one on the right and the other on the front and back, can automatically adhere the packaging film to the surface of the box body to complete the initial packaging film bonding, thus solving the problem of poor consistency in traditional pressing treatment. The pressing unit and the pressing unit form a double pressing structure, which can effectively improve the firmness of the adhesion between the box body and the packaging film. The negative pressure chambers opened inside the first and second conveyors, together with the external fan, use negative pressure to adsorb the bottom surface of the conveyed packaging film, so that the packaging film is always fixed on the upper side of the conveyor belt to prevent displacement caused by external factors.

[0015] 2. By starting the first linear motor, the position of the laser positioning sensor inside the mounting base is adjusted. This effectively limits the packaging film and prevents deviations when the robotic arm places the box. The infrared positioning sensor can detect the conveyed box and then activate the electric telescopic rod to press the pressure roller inside the roller frame down onto the box to pre-compress the packaging film and the box, facilitating subsequent production processing.

[0016] 3. The packaging film on the bottom surface of the box is fixed by the lowering of the second electric push rod and the pressing down of the first electric push rod. The elasticity of the spring and the limit frame automatically cause the roller to stick the packaging film to the surface of the box. At the same time, the third electric push rod drives the pressure plate to increase the stability of the packaging film. The second linear motor drives the push plate to move and press the packaging film onto the top surface of the box, thus completing the bonding of the packaging film to the surface of the box.

[0017] 4. Place the box upside down on the outside of the positioning seat, activate the hydraulic rod to drive the top pressure plate down, and work with the fourth electric push rod around the perimeter to press the rubber pressure block on the surface of the clamping plate to press and fix the packaging film on the surface of the box to prevent it from falling off due to poor adhesion.

[0018] 5. The compressed box can be ejected by activating the electric telescopic rod for easy handling. The motor drives the gear to rotate and mesh with the gear ring seat to rotate the stripper plate for visual inspection. At the same time, the lighting provides illumination to the surface of the box, and the defect camera can detect defects on the surface of the box to prevent damage to the packaging film from affecting the quality of the finished product. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the limiting pressure box unit structure of the present invention; Figure 3 This is a schematic diagram of the pressing unit structure of the present invention; Figure 4 This is a schematic diagram of the compression unit structure of the present invention; Figure 5 This is the present invention. Figure 3 A magnified view of the structure at point A in the middle; Figure 6 This is the present invention. Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0021] Explanation of reference numerals in the attached drawings: 1. Processing table; 2. Limiting and pressing box unit; 21. First linear motor; 22. Connecting rod; 23. Mounting base; 24. Laser positioning sensor; 25. Housing; 26. Electric telescopic rod; 27. Roller frame; 28. Pressing roller; 29. ​​Support; 210. Container base; 211. Infrared positioning sensor; 3. Pressing edge unit; 31. First electric push rod; 32. Pressing box base; 33. Box support plate; 34. Second electric push rod; 35. Limiting frame; 36. Spring; 37. Roller base; 38. Roller; 39. Frame; 310. Push plate; 311. Second linear motor; 312. Support frame; 313. Pressing plate; 314. Third electric push rod; 315. Fixed base; 316. Negative pressure fan; 317. Fan base; 318. Vacuum chamber; 319. 1. Negative pressure suction hole; 4. Compression unit; 41. Hydraulic rod; 42. Top pressure plate; 43. Mounting frame; 44. Positioning seat; 45. Rubber block; 46. Clamping plate; 47. Fourth electric push rod; 48. Mounting plate; 49. Stripping plate; 410. Gear ring seat; 411. Gear; 412. Electric lifting rod; 413. Fixing plate; 414. Motor; 415. Lighting lamp; 416. Defect camera; 417. Frame; 5. Pushing unit; 51. Rubber head; 52. Pneumatic push rod; 53. Adjusting seat; 54. Lead screw; 55. Fixing frame; 56. Rotary wheel; 57. Slide frame; 6. Machine box; 7. Machine cover; 8. Maintenance door; 9. First conveyor; 10. Second conveyor; 11. Processing table; 12. Range measuring frame; 13. Laser range measuring sensor; 14. Controller. Detailed Implementation

[0022] Please see Figure 1-6 This embodiment provides a technical solution: a packaging box processing line, including a processing table 1 and an edge pressing unit 3; Processing table 1: The bottom surface is fixed with a housing 6, and the top surface of the processing table 1 is fixed with a cover 7. The surfaces of the housing 6 and the cover 7 are hinged with maintenance doors 8. The front side of the processing table 1 is equipped with a first conveyor 9, the rear side of the processing table 1 is equipped with a second conveyor 10, and the right side of the second conveyor 10 is equipped with a processing table 11. The lower side of the conveyor belts of the first conveyor 9 and the second conveyor 10 are both provided with negative pressure chambers. The top surface of the first conveyor 9 is equipped with a limiting pressure box unit 2. The limiting and pressing unit 2 includes a first linear motor 21, a connecting rod 22, a mounting base 23, a laser positioning sensor 24, and a housing 25. The housing 25 is fixed to the left side of the top surface of the first conveyor 9. The first linear motor 21 is provided on both sides inside the housing 25. The surface of the moving part of the first linear motor 21 is connected to one end of the connecting rod 22, and the other end of the connecting rod 22 is connected to the top surface of the mounting base 23. The laser positioning sensor 24 is installed inside the mounting base 23. The input end of the first linear motor 21 is electrically connected to the output end of the controller 14, and the output end of the laser positioning sensor 24 is electrically connected to the input end of the controller 14. The first linear motor 21 is started to adjust the position of the laser positioning sensor 24 inside the mounting base 23. This can effectively limit the packaging film and prevent deviation when the robotic arm places the box. The limiting and pressing box unit 2 also includes an electric telescopic rod 26, a roller frame 27, a pressure roller 28, a bracket 29, a base 210, and an infrared positioning sensor 211. The bracket 29 is fixed on the right side of the top surface of the first conveyor 9. The top surface of the bracket 29 is provided with an electric telescopic rod 26. The bottom end of the electric telescopic rod 26 is connected to the middle of the top surface of the roller frame 27. The pressure roller 28 is rotatably installed inside the roller frame 27. The base 210 is installed on the rear side inside the bracket 29. The infrared positioning sensor 211 is placed and snapped inside the base 210. The input end of the electric telescopic rod 26 is electrically connected to the output end of the controller 14. The output end of the infrared positioning sensor 211 is electrically connected to the input end of the controller 14. The infrared positioning sensor 211 can detect the conveyed box, thereby activating the electric telescopic rod 26 to press the pressure roller 28 inside the roller frame 27 down onto the inside of the box to pre-press the packaging film and the box to facilitate subsequent production processing. The top surface of the processing table 11 is provided with a pressing unit 4. The clamping unit 4 includes hydraulic rods 41, a top pressure plate 42, a mounting bracket 43, a positioning seat 44, a rubber clamping block 45, a clamping plate 46, a fourth electric push rod 47, and mounting plates 48. The mounting bracket 43 is fixed to the top surface of the processing table 11. Hydraulic rods 41 are provided on both sides of the top surface of the mounting bracket 43. The bottom end of the hydraulic rod 41 is connected to one side of the top surface of the top pressure plate 42. The positioning seat 44 is fixed to the center of the top surface of the processing table 11. There are four mounting plates 48, which surround the four sides of the positioning seat 44 and are mounted on the top surface of the processing table 11. The surface of the mounting plates 48... Both ends are provided with a fourth electric push rod 47. The inner end of the fourth electric push rod 47 is connected to one end of the outer side of the clamping plate 46. A rubber pressure block 45 is installed on the inner side of the clamping plate 46. The input end of the hydraulic rod 41 and the fourth electric push rod 47 are electrically connected to the output end of the controller 14. The box is placed upside down on the outside of the positioning seat 44. The hydraulic rod 41 is activated to drive the top pressure plate 42 to press down. The fourth electric push rod 47 around the box is used to press and fix the packaging film on the surface of the box with the rubber pressure block 45 on the surface of the clamping plate 46 to prevent it from falling off due to poor adhesion. The pressing unit 4 also includes a stripping plate 49, a gear ring seat 410, a gear 411, an electric lifting rod 412, a fixing plate 413, and a motor 414. The electric lifting rod 412 is fixed inside the positioning seat 44. The gear ring seat 410 is located in the middle of the bottom surface of the stripping plate 49. The top end of the electric lifting rod 412 is rotatably mounted inside the gear ring seat 410. The fixing plate 413 is installed on the outside of the electric telescopic rod 412. The motor 414 is located on the bottom surface of the fixing plate 413. The output shaft of the motor 414 is connected to the bottom end of the gear 411. The connection is as follows: the gear 411 meshes with the gear ring seat 410, the stripper plate 49 engages with the groove on the top surface of the positioning seat 44, the input end of the electric lifting rod 412 and the motor 414 are electrically connected to the output end of the controller 14, the electric telescopic rod 412 can push out the compressed box for easy handling by personnel, and the motor 414 drives the gear 411 to rotate and mesh with the gear ring seat 410 to drive the stripper plate 49 to rotate for easy visual inspection and defect inspection by personnel, so as to prevent the packaging film from being damaged and affecting the quality of the finished product; The pressing unit 4 also includes a lighting lamp 415, a defect camera 416, and a frame 417. The frame 417 is fixed to the rear side of the mounting bracket 43. The defect camera 416 is placed inside the frame 417. There are two lighting lamps 415, which are respectively installed on both sides of the top surface inside the frame 417. The input terminals of the lighting lamps 415 and the defect camera 416 are electrically connected to the output terminal of the controller 14. The lighting lamps 415 provide illumination to the surface of the box, while the defect camera 416 can detect defects on the surface of the box. The top surface of the processing table 1 is provided with a pusher unit 5. The pushing unit 5 includes a rubber head 51, a pneumatic push rod 52, an adjusting seat 53, a lead screw 54, a fixing frame 55, a rotating wheel 56, and a slide frame 57. The fixing frame 55 is fixed to the front side of the top surface of the processing table 1. The surface of the fixing frame 55 is provided with a rotating wheel 56. The right end of the rotating wheel 56 is connected to the left end of the lead screw 54. The lead screw 54 is threaded into the screw hole on the surface of the adjusting seat 53. The adjusting seat 53 is slidably connected to the top surface of the processing table 1. The top surface of the adjusting seat 53 is equipped with a pneumatic push rod 52. The rear end of the pneumatic push rod 52 is fixedly equipped with a rubber head 51. The pushing unit 5 includes a rubber head 51, a pneumatic push rod 52, an adjusting seat 53, a lead screw 54, a fixing frame 55, a rotating wheel 56, and a slide frame 57. The fixing frame 55 is fixed to the front side of the top surface of the processing table 1. The surface of the fixing frame 55 is provided with a rotating wheel 56. The surface of the adjusting seat 55 is provided with a pneumatic push rod 52. The right end of the pneumatic push rod 54 is fixedly equipped with a rubber head 51, a pneumatic push rod 52, an adjusting seat 53, a lead screw 54, a fixing frame 55, a rotating wheel 56, and a slide frame 57. The fixing frame 55 is fixed to the front side of the top surface of the processing table 1. The surface of the adjusting seat 55 is provided with a pneumatic push rod 52. The right end of the pneumatic push rod 52 is fixedly equipped with a rubber head 51, a pneumatic push rod 52, a adjusting seat 53, a lead screw 54, a fixing On the front side of the top surface of the processing table 1, the surface of the fixed frame 55 is provided with a rotating wheel 56. The right end of the rotating wheel 56 is connected to the left end of the lead screw 54. The lead screw 54 is threadedly installed in the screw hole on the surface of the adjusting seat 53. The adjusting seat 53 is slidably connected to the top surface of the processing table 1. A pneumatic push rod 52 is installed on the top surface of the adjusting seat 53. A rubber head 51 is fixedly installed on the rear end of the pneumatic push rod 52. The slide frame 57 is installed on the rear side of the top surface of the processing table 1. The input end of the pneumatic push rod 52 is electrically connected to the output end of the controller 14. Rotating the rotating wheel 56 drives the lead screw 54 to rotate to adjust the position of the pneumatic push rod 52. Starting the pneumatic push rod 52 pushes out the pressed box and cooperates with the slide frame 57 to automatically fall onto the surface of the second conveyor 10 for conveying. The pressing unit 3 includes a first electric push rod 31, a pressing box seat 32, a box support plate 33, and a second electric push rod 34. The first electric push rod 31 is fixed inside the machine cover 7, and the bottom end of the first electric push rod 31 is connected to the middle of the top surface of the pressing box seat 32. The second electric push rod 34 is fixed inside the machine housing 6, and the top end of the second electric push rod 34 passes through the through hole on the bottom surface of the processing table 1 and is connected to the middle of the bottom surface of the box support plate 33. The pressing unit 3 also includes a limiting frame 35, springs 36, roller seats 37, rollers 38, a frame 39, a push plate 310, a second linear motor 311, a support frame 312, a pressure plate 313, a third electric push rod 314, and a fixed seat 315. The frame 39 is fixed inside the processing table 1. There are four roller seats 37, which are fixed inside the frame 39 in pairs. Rollers 38 are rotatably installed inside the roller seats 37. The limiting frame 35 is fixed to the inner surface of the frame 39 and is slidably installed on the outer side of the roller seats 37. Springs 36 are fixed at both ends of the outer side of the roller seats 37. The outer ends of the springs 36 are installed corresponding to the inner surface of the frame 39. There are four fixed seats 315, which are fixed inside the frame 39 in pairs. The fixed seats 315 are located below the roller seats 37. The inner sides of the fixed seats 315 are provided with third electric push rods 314. The inner end is connected to one end of the outer side of the pressure plate 313. The second linear motor 311 is fixed inside the fixed base 315. The top surface of the second linear motor 311's moving base is connected to the middle of the bottom surface of the support frame 312. The top ends of both sides of the support frame 312 are respectively connected to the two sides of the bottom surface of the push plate 310. The push plate 310 is located between the roller base 37 and the pressure plate 313. The input ends of the second linear motor 311 and the third electric push rod 314 are electrically connected to the output end of the controller 14. The second electric push rod 34 descends and cooperates with the first electric push rod 31 to press down to fix the packaging film on the bottom surface of the box. The elasticity of the spring 36 cooperates with the limit frame 35 to automatically make the roller 38 stick the packaging film to the surface of the box. At the same time, the third electric push rod 314 drives the pressure plate 313 to increase the stability of the packaging film fixation. The second linear motor 311 drives the push plate 310 to move and press the packaging film onto the top surface of the box, thereby completing the application of the packaging film to the surface of the box. The pressing unit 3 also includes a negative pressure fan 316, a fan base 317, a vacuum chamber 318, and a negative pressure suction hole 319. There are two vacuum chambers 318, which are respectively opened on both sides inside the pressing box base 32. The negative pressure suction holes 319 are evenly opened on the left and right sides of the pressing box base 32 and are connected to the vacuum chambers 318. There are two fan bases 317, which are respectively fixed on both sides of the top surface of the pressing box base 32. The negative pressure fan 316 is placed inside the pressing box base 32. The input end of the negative pressure fan 316 is electrically connected to the output end of the controller 14. When the negative pressure fan 316 inside the fan base 317 is started, a vacuum is formed inside the vacuum chamber 318, which, together with the negative pressure suction hole 319, adsorbs the box body on the outside of the pressing box base 32. This can prevent the box body from falling off during processing and can also be picked up and put on according to the processing situation. The system also includes a controller 14. The input ends of the first conveyor 9, the second conveyor 10, the first electric push rod 31, and the second electric push rod 34 are electrically connected to the output end of the controller 14. The input end of the controller 14 is electrically connected to the output end of an external controller. The first conveyor 9 and the second conveyor 10 can transport materials such as packaging film and box body during the packaging box processing. The negative pressure chamber opened inside them, together with the external fan, keeps the transported materials fixed on the upper side of the conveyor belt. It also includes a rangefinder 12 and a laser rangefinder 13. There are two rangefinders 12, which are respectively installed on both sides of the bottom surface of the tray plate 33. The laser rangefinder 13 is placed inside the rangefinder 12. The output end of the laser rangefinder 13 is electrically connected to the input end of the controller 14. The laser rangefinder 13 can detect the height of the tray plate 33, thereby improving the accuracy of the lifting height of the tray plate 33.

[0023] The working principle of the packaging box processing line provided by this invention is as follows: First, the packaging film after gluing is placed on the conveyor belt of the first conveyor 9. The first linear motor 21 is started to adjust the position of the laser positioning sensor 24 inside the mounting base 23. This effectively limits the packaging film and prevents deviation when the robotic arm places the box. The infrared positioning sensor 211 can detect the conveyed box, thereby activating the electric telescopic rod 26 to press the pressure roller 28 inside the roller frame 27 down on the inside of the box to pre-compress the packaging film and the box, facilitating subsequent production processing. The operator places the pre-compressed box on the top surface of the tray 33 and starts... The second electric push rod 34 descends in conjunction with the first electric push rod 31 to lower the box body to the position of the pressure plate 313. As it passes the first layer, the elasticity of the spring 36, combined with the limiting bracket 35, automatically causes the roller 38 to adhere the packaging film to the surface of the box body. Simultaneously, the third electric push rod 314 drives the pressure plate 313 to increase the stability of the packaging film. At this point, the first electric push rod 31 drives the pressing seat 32 to rise, while the second linear motor 311 drives the push plate 310 to move, pressing the packaging film onto the top surface of the box body, ensuring the top of the packaging film is inside the box body. Then, the first electric push rod 31 again drives the pressing seat 32 to press down, adhering the packaging film to the inner wall of the box body. The two-layer pressing structure adheres the packaging film to the surface of the box body. After the packaging film is applied, the second electric push rod 34 drives the tray 33 to rise and push the box out. The laser range sensor 13 can detect the height of the tray 33, thereby improving the accuracy of the lifting height of the tray 33. The negative pressure fan 316 creates a vacuum inside the vacuum chamber 318, which, together with the negative pressure suction hole 319, adsorbs the box onto the outside of the pressing seat 32. This prevents the box from falling during processing. At the same time, the box is picked up and put down according to the processing situation. Then, the pneumatic push rod 52 is activated to push out the pressed box and, together with the slide frame 57, automatically drops it onto the surface of the second conveyor 10 for conveying. Afterwards, the staff will invert the box on the surface of the second conveyor 10 and place it on the positioning seat. On the outside of 44, the hydraulic rod 41 is activated to drive the top pressure plate 42 to press down, which, together with the fourth electric push rod 47 around the perimeter, presses the rubber pressure block 45 on the surface of the clamping plate 46 to press and fix the packaging film on the surface of the box to prevent it from falling off due to poor adhesion. Finally, the electric telescopic rod 412 is activated to push out the pressed box for easy handling. The motor 414 drives the gear 411 to rotate and mesh with the gear ring seat 410 to drive the stripper plate 49 to rotate for easy visual inspection. At the same time, the lighting lamp 415 provides illumination to the surface of the box, and the defect camera 416 can detect defects on the surface of the box to prevent damage to the packaging film from affecting the quality of the finished product. This completes the film application process for the packaging box.

[0024] It is worth noting that the controller 14 disclosed in the above embodiments is provided with buttons on its surface that correspond to the control of the first linear motor 21, the laser positioning sensor 24, the electric telescopic rod 26, the infrared positioning sensor 211, the first electric push rod 31, the second electric push rod 34, the second linear motor 311, the third electric push rod 314, the negative pressure fan 316, the hydraulic rod 41, the fourth electric push rod 47, the electric lifting rod 412, the motor 414, the lighting lamp 415, the defect camera 416, the pneumatic push rod 52, the first conveyor 9, the second conveyor 10 and the laser rangefinder sensor 13. The controller 14 controls the operation of the first linear motor 21, laser positioning sensor 24, electric telescopic rod 26, infrared positioning sensor 211, first electric push rod 31, second electric push rod 34, second linear motor 311, third electric push rod 314, negative pressure fan 316, hydraulic rod 41, fourth electric push rod 47, electric lifting rod 412, motor 414, lighting lamp 415, defect camera 416, pneumatic push rod 52, first conveyor 9, second conveyor 10 and laser rangefinder 13 using methods commonly used in the prior art.

Claims

1. A production line for processing packaging boxes, characterized in that: It includes a processing table (1) and a pressing unit (3); A first conveyor (9) is placed on the front side of the processing table (1), a second conveyor (10) is placed on the rear side of the processing table (1), and a processing table (11) is placed on the right side of the second conveyor (10). Negative pressure chambers are provided on the lower side of the conveyor belts of the first conveyor (9) and the second conveyor (10). A limiting pressure box unit (2) is provided on the top surface of the first conveyor (9), a pressing unit (4) is provided on the top surface of the processing table (11), and a pushing unit (5) is provided on the top surface of the processing table (1). The pressing unit (3) includes a first electric push rod (31), a pressing box seat (32), a box support plate (33), and a second electric push rod (34). The first electric push rod (31) is fixed inside the machine cover (7). The bottom end of the first electric push rod (31) is connected to the middle of the top surface of the pressing box seat (32). The second electric push rod (34) is fixed inside the machine box (6). The top end of the second electric push rod (34) passes through the through hole on the bottom surface of the processing table (1) and is connected to the middle of the bottom surface of the box support plate (33). The system also includes a controller (14), the input ends of the first conveyor (9), the second conveyor (10), the first electric push rod (31) and the second electric push rod (34) are electrically connected to the output end of the controller (14), and the input end of the controller (14) is electrically connected to the output end of an external controller.

2. The production line for processing packaging boxes according to claim 1, characterized in that: The limiting pressure box unit (2) includes a first linear motor (21), a connecting rod (22), a mounting base (23), a laser positioning sensor (24), and a housing (25). The housing (25) is fixed on the left side of the top surface of the first conveyor (9). The first linear motor (21) is provided on both sides inside the housing (25). The surface of the moving part of the first linear motor (21) is connected to one end of the connecting rod (22), and the other end of the connecting rod (22) is connected to the top surface of the mounting base (23). The laser positioning sensor (24) is installed inside the mounting base (23). The input end of the first linear motor (21) is electrically connected to the output end of the controller (14), and the output end of the laser positioning sensor (24) is electrically connected to the input end of the controller (14).

3. The production line for processing packaging boxes according to claim 1, characterized in that: The limiting pressure box unit (2) also includes an electric telescopic rod (26), a roller frame (27), a pressure roller (28), a bracket (29), a base (210), and an infrared positioning sensor (211). The bracket (29) is fixed on the right side of the top surface of the first conveyor (9). The top surface of the bracket (29) is provided with an electric telescopic rod (26). The bottom end of the electric telescopic rod (26) is connected to the middle of the top surface of the roller frame (27). The pressure roller (28) is rotatably installed inside the roller frame (27). The base (210) is installed on the rear side inside the bracket (29). The infrared positioning sensor (211) is placed and snapped inside the base (210). The input end of the electric telescopic rod (26) is electrically connected to the output end of the controller (14). The output end of the infrared positioning sensor (211) is electrically connected to the input end of the controller (14).

4. The production line for processing packaging boxes according to claim 1, characterized in that: The pressing unit (3) further includes a limiting frame (35), a spring (36), a roller seat (37), a roller (38), a frame (39), a push plate (310), a second linear motor (311), a support frame (312), a pressure plate (313), a third electric push rod (314), and a fixed seat (315). The frame (39) is fixed inside the processing table (1). There are four roller seats (37), which are fixed inside the frame (39) in pairs. The rollers (38) are rotatably installed inside the roller seats (37). The limiting frame (35) is fixed to the surface inside the frame (39). The limiting frame (35) is slidably installed on the outside of the roller seats (37). Springs (36) are fixed at both ends of the outer side of the roller seats (37). The outer ends of the springs (36) are installed correspondingly to the surface inside the frame (39). There are four fixed seats (315) that are fixed in pairs to the surface inside the frame (39). The fixed seats (315) are located on the lower side of the roller seat (37). The fixed seats (315) are provided with third electric push rods (314) on both sides inside. The inner end of the third electric push rod (314) is connected to one end of the outer side of the pressure plate (313). The second linear motor (311) is fixed inside the fixed seat (315). The top surface of the second linear motor (311) mover seat is connected to the middle of the bottom surface of the support frame (312). The top ends of both sides of the support frame (312) are respectively connected to the two sides of the bottom surface of the push plate (310). The push plate (310) is located between the roller seat (37) and the pressure plate (313). The input ends of the second linear motor (311) and the third electric push rod (314) are electrically connected to the output end of the controller (14).

5. The production line for processing packaging boxes according to claim 1, characterized in that: The pressing unit (3) further includes a negative pressure fan (316), a fan base (317), a vacuum chamber (318), and a negative pressure suction hole (319). There are two vacuum chambers (318) and they are respectively opened on both sides inside the pressing box base (32). The negative pressure suction holes (319) are evenly opened on the left and right sides of the pressing box base (32). The negative pressure suction holes (319) are connected to the vacuum chambers (318). There are two fan bases (317) and they are respectively fixed on both sides of the top surface of the pressing box base (32). The negative pressure fan (316) is placed inside the pressing box base (32). The input end of the negative pressure fan (316) is electrically connected to the output end of the controller (14).

6. The production line for processing packaging boxes according to claim 1, characterized in that: The pressing unit (4) includes a hydraulic rod (41), a top pressure plate (42), a mounting bracket (43), a positioning seat (44), a rubber block (45), a clamping plate (46), a fourth electric push rod (47), and a mounting plate (48). The mounting bracket (43) is fixed to the top surface of the processing table (11). Hydraulic rods (41) are provided on both sides of the top surface of the mounting bracket (43). The bottom end of the hydraulic rod (41) is connected to one side of the top surface of the top pressure plate (42). The positioning seat (44) is fixed to the processing table (11). The mounting plate (48) is located in the middle of the top surface. It has four mounting plates (48) that surround the four sides of the positioning seat (44) and are mounted on the top surface of the processing table (11). The mounting plate (48) has a fourth electric push rod (47) at both ends. The inner end of the fourth electric push rod (47) is connected to one end of the outer side of the clamping plate (46). The inner side of the clamping plate (46) is equipped with a rubber pressure block (45). The input ends of the hydraulic rod (41) and the fourth electric push rod (47) are electrically connected to the output end of the controller (14).

7. The production line for processing packaging boxes according to claim 6, characterized in that: The pressing unit (4) further includes a stripping plate (49), a gear ring seat (410), a gear (411), an electric lifting rod (412), a fixing plate (413), and a motor (414). The electric lifting rod (412) is fixed inside the positioning seat (44). The gear ring seat (410) is provided in the middle of the bottom surface of the stripping plate (49). The top end of the electric lifting rod (412) is rotatably installed inside the gear ring seat (410). The fixing plate (413) The motor (414) is installed on the outside of the electric telescopic rod (412). The bottom surface of the fixing plate (413) is provided with a motor (414). The output shaft of the motor (414) is connected to the bottom end of the gear (411). The gear (411) meshes with the gear ring seat (410). The stripping plate (49) is engaged with the groove on the top surface of the positioning seat (44). The input ends of the electric lifting rod (412) and the motor (414) are electrically connected to the output end of the controller (14).

8. The production line for processing packaging boxes according to claim 6, characterized in that: The pressing unit (4) also includes a lighting lamp (415), a defect camera (416) and a frame (417). The frame (417) is fixed to the rear side of the mounting bracket (43). The defect camera (416) is placed inside the frame (417). There are two lighting lamps (415) and they are respectively installed on both sides of the top surface inside the frame (417). The input terminals of the lighting lamps (415) and the defect camera (416) are electrically connected to the output terminal of the controller (14).

9. The production line for processing packaging boxes according to claim 1, characterized in that: The feeding unit (5) includes a rubber head (51), a pneumatic push rod (52), an adjusting seat (53), a lead screw (54), a fixed frame (55), a rotating wheel (56), and a slide frame (57). The fixed frame (55) is fixed on the front side of the top surface of the processing table (1). The surface of the fixed frame (55) is provided with a rotating wheel (56). The right end of the rotating wheel (56) is connected to the left end of the lead screw (54). The lead screw (54) is threadedly installed with the screw hole on the surface of the adjusting seat (53). The adjusting seat (53) is slidably connected to the top surface of the processing table (1). The top surface of the adjusting seat (53) is equipped with a pneumatic push rod (52). The rear end of the pneumatic push rod (52) is fixedly equipped with a rubber head (51). The slide frame (57) is installed on the rear side of the top surface of the processing table (1). The input end of the pneumatic push rod (52) is electrically connected to the output end of the controller (14).

10. A production line for processing packaging boxes according to claim 1, characterized in that: It also includes a rangefinder (12) and a laser rangefinder (13). There are two rangefinders (12) and they are respectively installed on both sides of the bottom surface of the tray plate (33). The laser rangefinder (13) is placed inside the rangefinder (12). The output end of the laser rangefinder (13) is electrically connected to the input end of the controller (14).

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