Component boxing and boxing corner folding device

Abstract

The invention discloses a component boxing and boxing corner folding device, and belongs to the technical field of material mixing prevention, the component boxing and boxing corner folding device comprises a rack, a conveying device and a mounting support, the conveying device and the mounting support are arranged on the rack, the mounting support is provided with a sucker device and an upper edge folding unit used for carton corner folding, and the side, away from the conveying device, of the rack is provided with a workbench; three sets of U-shaped frames and two sets of sliding plates are arranged at the bottom of the workbench, and the U-shaped frames and the sliding plates are perpendicularly arranged and slidably connected. U-shaped frames are arranged on the two sides of the bottom of the workbench, lower edge folding units used for carton corner folding are arranged on the two sides of the bottom of the workbench, the lower edge folding units are driven by electric push rods, the electric push rods are installed on the U-shaped frames on the two sides, and left and right edge folding units used for carton corner folding are arranged on the periphery of the workbench. Adjusting devices used for controlling the positions of the left edge folding unit and the right edge folding unit are arranged on the sliding plates on the two sides. The angle folding device can be suitable for box bodies of various specifications, and meanwhile the production efficiency and the edge folding efficiency are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of anti-mixing materials, and in particular to a corner folding device for packaging components. Background Art

[0002] Electronic components are components of electronic elements and small machines and instruments. They are usually composed of several parts and can be used in similar products. They often refer to certain parts of industries such as electrical appliances, radios, and instruments. They are a general term for electronic devices such as capacitors, transistors, hairsprings, and springs.

[0003] In the process of packaging components, it is usually necessary to install the components on a bracket plate and then place them in a paper box or carton for folding and sealing. The existing folding equipment needs to fold the carton or carton several times before it can be finally formed, which has low work efficiency, thereby reducing the folding efficiency and production efficiency of the carton. Summary of the invention

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a folding device that can be adapted to boxes of various specifications and effectively improve the production efficiency and folding efficiency.

[0005] To achieve this object, the present invention adopts the following technical solutions: The present invention provides a device for packing and creasing corners of components, comprising a frame, a conveying device and a mounting bracket arranged on the frame, wherein the mounting brackets are respectively provided with a suction cup and an upper folding unit for folding corners of a carton, a workbench is arranged on the side of the frame away from the conveying device, and three groups of U-shaped frames and two groups of slide plates are respectively arranged at the bottom of the workbench, wherein the U-shaped frames are vertically arranged and slidably connected to the slide plates, and cylinders are installed on both sides of the U-shaped frame located in the middle, and the U-shaped frames on both sides are controlled by the cylinders to approach or move away from the bottom of the workbench; The bottom of the workbench is provided with lower folding units for folding carton corners on both sides, and the lower folding units are driven by electric push rods, and the electric push rods are installed on the U-shaped frames on both sides. The bottom of the workbench is provided with left and right folding units for folding carton corners around, and the slides on both sides are provided with adjustment devices for controlling the positions of the left and right folding units; The left and right folding units include a main shaft rotatably connected to the workbench and four groups of secondary shafts, one end of the main shaft is connected to a motor through an intermediate U-shaped frame, a main gear and a double-headed telescopic rod are sequentially installed on the main shaft, and folding assemblies and secondary gears are sequentially installed on the four groups of secondary shafts, a rack plate is transmission-connected between the two diagonally located secondary gears and the main gear, a support rod is slidably arranged in a sliding groove on the rack plate, the support rod is rotatably connected to the double-headed telescopic rod, meshing plates meshing with the diagonal secondary gears are arranged at both ends of the double-headed telescopic rod, and sliders slidably connected to the slide plate are arranged at the bottom of the four groups of secondary shafts.

[0006] The preferred technical solution of the present invention is that a plurality of movable grooves are provided on the top of the workbench, a folding assembly is provided at one end of the secondary shaft passing through the movable groove, and the electric push rod drives the lower folding unit to pass through the movable groove to achieve the folding processing of the lower folded edge of the carton.

[0007] The preferred technical solution of the present invention is that the folding assembly includes a mounting plate fixed to the top of the secondary shaft, a main folding plate is installed on the top of the mounting plate by bolts, and an auxiliary folding plate is installed on the main folding plate by bolts.

[0008] The preferred technical solution of the present invention is that the adjusting device includes a double-headed cylinder respectively fixed on the slides on both sides, the two ends of the double-headed cylinder are fixedly connected to the slider, and two groups of the double-headed cylinders are provided with an extension plate on one side close to each other, and movable telescopic rods are rotatably connected between the extension plate and the slider, and the movable ends of the two groups of movable telescopic rods are rotatably connected, and the two groups of movable ends are rotatably connected to the movable plate.

[0009] The preferred technical solution of the present invention is that limit blocks are arranged on the two diagonal groups of sliding blocks, the two groups of limit blocks are located below the secondary gears meshing with the meshing plate, the limit blocks are rotatably connected to the secondary shaft, the limit blocks are rotatably connected to the movable telescopic rod, and one end is abutted against the movable telescopic rod.

[0010] The preferred technical solution of the present invention is that the upper folding unit includes an H-shaped plate located above both sides of the carton, a screw device is arranged between the two groups of the H-shaped plates, the distance between the two groups of the H-shaped plates is adjusted by the screw device, and an upper folding structure for folding the upper folded edge of the carton is arranged on the side away from each other of the two groups of the H-shaped plates.

[0011] The preferred technical solution of the present invention is that the upper folding structure comprises two groups of folding tubes, a fixed seat is arranged between the two groups of the folding tubes, a connecting plate is slidably arranged on the side of the two groups of the folding tubes close to the H-shaped plate, an adjusting plate is rotatably connected to the connecting plate, and a driving plate is rotatably connected to the side of the adjusting plate away from the connecting plate, the driving plate and the H-shaped plate are connected by a cylinder, and an electric telescopic rod is arranged at one end of the two groups of the folding tubes away from each other, and the fixed end of the electric telescopic rod is connected to a U-shaped seat.

[0012] A preferred technical solution of the present invention is that an L-shaped plate is arranged between the U-shaped seat and the H-shaped plate.

[0013] The preferred technical solution of the present invention is that a slide is provided on the folding tube, the folding tube is slidably connected to the connecting plate via the slide, and a clamping end is provided at the bottom of the slide to limit the sliding range of the connecting plate.

[0014] The beneficial effects of the present invention are: 1. The present invention is provided with an upper folding unit, left and right folding units and a lower folding unit, which can realize rapid forming and packaging of cartons, reduce the number of times the carton is folded, effectively improve the work efficiency of the carton corner folding, and ensure the production efficiency and effect of the carton; The present invention can adjust the positions of the folding components in the left and right folding units and the lower folding unit through the adjusting device, the electric push rod, the cylinder and the U-shaped frame, so that the lower folding unit and the left and right folding units can be adapted to cartons of different sizes, effectively improving the applicable range of the carton folding angle and reducing the production cost of the equipment; The present invention cooperates with a cylinder, an electric telescopic rod, an H-shaped plate and a screw device to adjust the position of the upper folding structure according to the requirements of the carton specifications to adapt to cartons of different specifications, thereby achieving rapid molding of cartons and effectively improving the operating efficiency of carton molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a corner folding device provided in a specific embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of the left and right hemming units provided in a specific embodiment of the present invention; Figure 3 It is a bottom view of the left and right hemming unit structures provided in a specific embodiment of the present invention; Figure 4 It is a schematic structural diagram of the left and right folding units and the adjusting device provided in a specific embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of a double-ended telescopic rod provided in a specific embodiment of the present invention; Figure 6 is a top view of the structure of the regulating device provided in a specific embodiment of the present invention; Figure 7 It is a schematic diagram of the support rod and rack plate structure provided in a specific embodiment of the present invention; Figure 8 It is a schematic diagram of the upper folding unit structure provided in a specific embodiment of the present invention.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Frame; 11. Conveying device; 12. Mounting bracket; 2. Workbench; 21. U-shaped frame; 22. Slide plate; 23. Movable slot; 3. Left and right folding units; 31. Main shaft; 32. Sub-shaft; 321. Mounting plate; 322. Main folding plate; 323. Auxiliary folding plate; 324. Bolt; 33. Sub-gear; 34. Rack plate; 341. Sliding slot; 35. Sliding block; 36. Main gear; 37. Double-head telescopic rod; 371. Fixed plate; 372. Movable plate; 373. Spring; 38. Engaging plate; 4. Adjusting device; 41. Double-headed cylinder; 42. Extension plate; 43. Limiting block; 44. Movable telescopic rod; 5. Upper folding unit; 51. H-type plate; 52. Screw device; 53. Upper folding structure; 531. Driving plate; 532. Adjusting plate; 533. Connecting plate; 534. Slide; 535. Folding cylinder; 536. Electric telescopic rod; 537. U-type seat; 538. Fixed seat; 54. L-type plate; 6. Carton; 7. Suction cup; 8. Lower folding unit; 81. Electric push rod. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0018] Embodiment 1 Refer to the attached Figure 1-8 A device for folding corners for packaging and packing components, comprising a frame 1, a conveying device 11 and a mounting bracket 12 arranged on the frame 1, the mounting bracket 12 being respectively provided with a suction cup 7 and an upper folding unit 5 for folding corners of a carton 6, a workbench 2 being arranged on the side of the frame 1 away from the conveying device 11, three groups of U-shaped frames 21 and two groups of slide plates 22 being respectively arranged at the bottom of the workbench 2, the U-shaped frames 21 and the slide plates 22 being arranged vertically and slidably connected, cylinders being installed on both sides of the U-shaped frame 21 located in the middle, and the U-shaped frames 21 on both sides being controlled by the cylinders to approach or move away from the bottom of the workbench 2; The bottom of the workbench 2 is provided with lower folding units 8 for folding the corners of the carton 6, and the lower folding units 8 are driven by electric push rods 81, and the electric push rods 81 are installed on the U-shaped frames 21 on both sides. The bottom of the workbench 2 is provided with left and right folding units 3 for folding the corners of the carton 6, and the slides 22 on both sides are provided with adjustment devices 4 for controlling the positions of the left and right folding units 3; Place the carton 6 or paper box on the conveying device 11, convey the carton 6 to the workbench 2 through the conveying device 11, place the panel with installed components in the carton 6, adjust the positions of the left and right folding units 3 through the adjusting device 4 to adapt to the folding and forming process of the carton 6, start the left and right folding units 3, and fold the side folding edges around the carton 6 through the left and right folding units 3, and then start the lower folding unit 8 and the upper folding unit 5 at the same time, fold the upper and lower folding edges of the carton 6, so as to complete the packing of components, and can quickly realize the folding and forming of the carton 6, thereby improving the production efficiency and folding efficiency of the carton 6. 4. The adjustment and coordination of the U-shaped frame 21 by the electric push rod 81 and the cylinder can adjust the positions of multiple groups of folding units according to the specifications of the carton 6, so as to adapt to the use of cartons 6 of various sizes and specifications. It has a wide range of applications and reduces the production cost of the carton 6 folding device; wherein the multiple groups of suction cups 7 are provided with a driving device for driving the suction cups 7 to move, and the driving device drives the suction cups 7 to adsorb the completed carton 6 on this side and move it to the gluing device on one side of the workbench 2 for gluing and packaging. The gluing device is a prior art, so the structure of the gluing device is not described and explained too much in this application. The driving device can be a screw assembly, a cylinder, a rack transmission and other structures.

[0019] The left and right folding units 3 include a main shaft 31 rotatably connected to the workbench 2 and four groups of secondary shafts 32, one end of the main shaft 31 passes through the middle U-shaped frame 21 and is connected to a motor, a main gear 36 and a double-headed telescopic rod 37 are sequentially installed on the main shaft 31, and four groups of secondary shafts 32 are sequentially installed with folding assemblies and secondary gears 33, a rack plate 34 is transmission-connected between the two diagonal groups of secondary gears 33 and the main gear 36, a support rod is slidably arranged in the sliding groove 341 on the rack plate 34, the support rod is rotatably connected to the double-headed telescopic rod 37, meshing plates 38 meshing with the diagonal secondary gears 33 are arranged at both ends of the double-headed telescopic rod 37, and sliders 35 slidably connected to the slide plate 22 are arranged at the bottom of the four groups of secondary shafts 32.

[0020] Start the motor, the motor drives the main shaft 31 to rotate, the main shaft 31 drives the main gear 36 to rotate, the main gear 36 rotates and drives the two sets of rack plates 34 to rotate, the two sets of rack plates 34 move away from each other in cooperation with the sliding groove 341 and the support rod, and the two sets of diagonal sub-gears 33 meshing with the rack plates 34 are driven to rotate, thereby driving the diagonal sub-shafts 32 to rotate, and the two diagonal sub-shafts 32 drive the folding assembly to fold the two sets of diagonal side edges of the carton 6, wherein the support rod is T-shaped, and the lateral end is a circular shape that matches the sliding groove 341, and the length of the rack plate 34 is selected according to the needs of the site Selection and installation; the main shaft 31 rotates while driving the double-headed telescopic rod 37 to rotate, and the double-headed telescopic rod 37 drives the meshing plate 38 to rotate. Since the meshing plate 38 is meshed with the corresponding two sets of diagonal sub-gears 33, the corresponding two sets of diagonal sub-gears 33 and the sub-shaft 32 are driven to rotate, and the rotation direction is opposite to the rotation direction of the main shaft 31, so that the four sets of side edges of the carton 6 can be synchronously folded, which greatly improves the efficiency of the folding and forming of the carton 6, effectively improves the yield and effect of component packaging, saves a lot of time for the corner folding processing of component boxing and packing, and improves the efficiency of component packaging.

[0021] Refer to the attached Figure 1 and 4 In order to adapt to the folding processing of cartons 6 of different specifications, as a possible implementation method of the present scheme, preferably, a plurality of groups of movable grooves 23 are opened on the top of the workbench 2, one end of the secondary shaft 32 passes through the movable groove 23 and is provided with a folding assembly, and the electric push rod 81 drives the lower folding unit 8 to pass through the movable groove 23 to realize the folding processing of the lower folded edge of the carton 6.

[0022] The folding assembly includes a mounting plate 321 fixed on the top of the secondary shaft 32 , a main folding plate 322 is mounted on the top of the mounting plate 321 via bolts 324 , and an auxiliary folding plate 323 is mounted on the main folding plate 322 via bolts 324 .

[0023] The electric push rod 81 drives the lower folding unit 8 to move upward to fold the two groups of lower folding edges of the carton 6, and the two groups of cylinders on the middle U-shaped frame 21 can adjust the position of the U-shaped frames 21 on both sides and the lower folding unit 8 on the U-shaped frame 21 to adapt to cartons 6 of different specifications. Similarly, the left and right folding units 3 select appropriate main folding plates 322 and auxiliary folding plates 323 according to the size of the carton 6, and install them on the mounting plate 321 through bolts 324 to realize folding processing of the carton 6, thereby ensuring that it is compatible with the folding processing of cartons 6 of different specifications, effectively increasing the scope of use of the device and ensuring the folding efficiency of the carton 6.

[0024] Embodiment 2 Refer to the attached Figure 5As a possible implementation of the present scheme, preferably, the double-headed telescopic rod 37 includes a fixed plate 371 fixed on the main shaft 31, and movable plates 372 are slidably connected in the slide grooves at both ends of the fixed plate 371, and the movable plate 372 is fixedly connected to the meshing plate 38 at one end away from the fixed plate 371, and a spring 373 is connected between the movable plate 372 and the inner wall of the fixed plate 371. When the adjusting device 4 adjusts the four groups of sub-gears 33 in the direction away from each other, under the action of the spring 373, the movable plate 372 is driven to move along the inner wall of the fixed plate 371 in the direction away from the main gear 36, and ensures that the movable plate 372 always slides outward along the inner wall of the fixed plate 371, and cooperates with the adjusting device 4 to realize the position adjustment of the sub-gear 33, thereby adjusting the position of the folding assembly to adapt to cartons 6 of different specifications.

[0025] See attached Figure 6-7 In order to ensure that the left and right folding units 3 can be adapted to cartons 6 of different specifications and reduce the cost of the equipment, as a possible implementation of this scheme, preferably, the adjustment device 4 includes a double-headed cylinder 41 respectively fixed on the two side slides 22, and the two ends of the double-headed cylinder 41 are fixedly connected to the slider 35. An extension plate 42 is provided on one side of the two groups of double-headed cylinders 41 close to each other, and a movable telescopic rod 44 is rotatably connected between the extension plate 42 and the slider 35. The movable ends of the two groups of movable telescopic rods 44 are rotatably connected, and the two groups of movable ends are rotatably connected to the movable plate 372; Limiting blocks 43 are arranged on the two diagonal groups of sliders 35 , and the two groups of limiting blocks 43 are located below the secondary gear 33 meshing with the meshing plate 38 . The limiting blocks 43 are rotationally connected to the secondary shaft 32 , and the limiting blocks 43 are rotationally connected to the movable telescopic rod 44 , and one end of the limiting blocks 43 abuts against the movable telescopic rod 44 .

[0026] The conveying device 11 conveys the carton 6 to the workbench 2. According to the size of the carton 6, the double-headed cylinder 41 is started to push the slider 35 to move. When the double-headed cylinder 41 drives the sliders 35 at both ends to move away from each other, the four sets of sub-gears 33 are driven to move away from each other. Under the action of the double-headed telescopic rod 37 and the two sets of movable telescopic rods 44, the two sets of meshing plates 38 are driven to move toward the corresponding meshing sub-gears 33 to ensure that they are in meshing state with the sub-gears 33. At the same time, the other two sets of sub-gears 33 move in the process of moving, respectively, and the rack plates 34 on both sides are moved. The rack plate 34 is pushed and rotated around the bottom of the support rod under the action of the support rod, and meshes with the teeth on the main gear 36 to complete the position adjustment of the four sets of sub-gears 33. The folding assembly is driven to move and adjust under the action of the secondary shaft 32, so that the folding assembly can be adjusted in position according to the specifications of the carton 6, and vice versa. Through the setting of the adjustment device 4, the left and right folding units 3 can be adapted to the folding processing of cartons 6 of different specifications, which effectively reduces the production cost of the equipment and improves the production efficiency and finished product speed of the carton 6 folding.

[0027] Embodiment 3 Refer to the attached Figure 8 In order to adapt to the use of cartons 6 of different specifications, the folding processing of cartons 6 of different specifications is realized by the upper folding structure 53. As a possible implementation method of this scheme, preferably, the upper folding unit 5 includes an H-shaped plate 51 located above both sides of the carton 6, and a screw device 52 is arranged between the two groups of the H-shaped plates 51. The distance between the two groups of H-shaped plates 51 is adjusted by the screw device 52. The upper folding structure 53 for folding the upper folded edge of the carton 6 is arranged on the side away from each other of the two groups of the H-shaped plates 51.

[0028] The upper folding structure 53 includes two groups of folding tubes 535, a fixed seat 538 is arranged between the two groups of the folding tubes 535, a connecting plate 533 is slidably arranged on the side of the two groups of the folding tubes 535 close to the H-shaped plate 51, an adjusting plate 532 is rotatably connected to the connecting plate 533, and the adjusting plate 532 is rotatably connected to the side away from the connecting plate 533. The driving plate 531 is connected to the H-shaped plate 51 through a cylinder, and an electric telescopic rod 536 is arranged at one end of the two groups of the folding tubes 535 away from each other, and a U-shaped seat 537 is connected to the fixed end of the electric telescopic rod 536, and an L-shaped plate 54 is arranged between the U-shaped seat 537 and the H-shaped plate 51.

[0029] The folding tube 535 is provided with a slide 534 , and the folding tube 535 is slidably connected to the connecting plate 533 via the slide 534 . A clamping end is provided at the bottom of the slide 534 to limit the sliding range of the connecting plate 533 .

[0030] After the carton 6 is conveyed to the workbench 2 by the conveying device 11, the screw device 52 is started according to the size of the carton 6. Since the screws connected to the two groups of H-shaped plates 51 rotate in opposite directions, the screw device 52 can control the two groups of H-shaped plates 51 to move closer to or farther from each other during operation. When the two groups of H-shaped plates 51 move closer to each other, the H-shaped plates 51 drive the two groups of driving plates 531 to move closer to each other, and the folding cylinder 535 drives the electric telescopic rods 536 at both ends to move, thereby adjusting the position of the upper folding unit 5, and vice versa. The upper folding unit 5 can be adapted to cartons 6 of different specifications; when folding, the cylinder and the electric telescopic rod 536 drive the upper folding structure 53 to move to a position abutting against the top of the carton 6, the cylinder stops working, and the electric telescopic rod 536 drives the folding tube 535 to continue to move downward, and the connecting plate 533 moves downward with the folding tube 535, and drives the adjusting plate 532 to turn downward by rotating with the connecting plate 533, thereby cooperating to realize the folding corner processing of the upper folded edge of the carton 6, and cooperating with the left and right folding units 3 and the lower folding unit 8 to realize the rapid forming of the carton 6, effectively improving the forming efficiency of the carton 6.

[0031] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A device for folding corners for packaging components, characterized in that: The invention comprises a frame (1), a conveying device (11) and a mounting bracket (12) arranged on the frame (1), wherein the mounting bracket (12) is respectively provided with a suction cup (7) and two groups of upper folding units (5) for folding corners of a carton (6), a workbench (2) is arranged on the side of the frame (1) away from the conveying device (11), and three groups of U-shaped frames (21) and two groups of slide plates (22) are respectively arranged at the bottom of the workbench (2), wherein the U-shaped frames (21) and the slide plates (22) are arranged vertically and slidably connected, and cylinders are installed on both sides of the U-shaped frame (21) located in the middle, and the cylinders are used to control the U-shaped frames (21) on both sides to move closer to or farther away from the bottom of the workbench (2); Lower folding units (8) for folding corners of cartons (6) are arranged on both sides of the bottom of the workbench (2); the lower folding units (8) are driven by electric push rods (81); the electric push rods (81) are mounted on U-shaped frames (21) on both sides; left and right folding units (3) for folding corners of cartons (6) are arranged around the workbench (2); and adjusting devices (4) for controlling the positions of the left and right folding units (3) are arranged on the slides (22) on both sides; The left and right folding units (3) include a main shaft (31) rotatably connected to the workbench (2) and four groups of secondary shafts (32); one end of the main shaft (31) passes through the middle U-shaped frame (21) and is connected to a motor; a main gear (36) and a double-headed telescopic rod (37) are sequentially mounted on the main shaft (31); the four groups of secondary shafts (32) are sequentially mounted on the folding components and secondary gears (33); a rack plate (34) is transmission-connected between the two diagonally located secondary gears (33) and the main gear (36); a support rod is slidably arranged in a sliding groove (341) on the rack plate (34); the support rod is rotatably connected to the double-headed telescopic rod (37); meshing plates (38) meshing with the diagonally located secondary gears (33) are arranged at both ends of the double-headed telescopic rod (37); and a slide block (35) slidably connected to the slide plate (22) is arranged at the bottom of the four groups of secondary shafts (32).

2. A device for packing components into boxes and corners according to claim 1, characterized in that: The top of the workbench (2) is provided with a plurality of groups of movable grooves (23); one end of the secondary shaft (32) passes through the movable grooves (23) and is provided with a folding assembly; the electric push rod (81) drives the lower folding unit (8) to pass through the movable grooves (23) to achieve folding processing of the lower folded edge of the carton (6).

3. The corner bending device for packaging components according to claim 1, characterized in that: The hemming assembly comprises a mounting plate (321) fixed to the top of the secondary shaft (32), a main hemming plate (322) being mounted on the top of the mounting plate (321) via bolts (324), and an auxiliary hemming plate (323) being mounted on the main hemming plate (322) via bolts (324).

4. The corner bending device for packaging components according to claim 1, characterized in that: The double-head telescopic rod (37) comprises a fixed plate (371) fixed on the main shaft (31), wherein movable plates (372) are slidably connected in sliding grooves at both ends of the fixed plate (371), and one end of the movable plate (372) away from the fixed plate (371) is fixedly connected to the engaging plate (38), and a spring (373) is connected between the movable plate (372) and the inner wall of the fixed plate (371).

5. The corner bending device for packaging components according to claim 1, characterized in that: The adjusting device (4) comprises a double-headed cylinder (41) respectively fixed on the two side slides (22), the two ends of the double-headed cylinder (41) being fixedly connected to the slider (35), an extension plate (42) being arranged on one side of two groups of the double-headed cylinders (41) close to each other, a movable telescopic rod (44) being rotatably connected between the extension plate (42) and the slider (35), the movable ends of the two groups of the movable telescopic rods (44) being rotatably connected, and the two groups of movable ends being rotatably connected to the movable plate (372).

6. The corner bending device for packaging components according to claim 1, characterized in that: Limit blocks (43) are provided on two diagonally opposite groups of the sliding blocks (35). The two groups of limit blocks (43) are located below a secondary gear (33) meshed with the meshing plate (38). The limit blocks (43) are rotationally connected to the secondary shaft (32). The limit blocks (43) are rotationally connected to the movable telescopic rod (44), and one end of the limit blocks (43) is in contact with the movable telescopic rod (44).

7. The corner bending device for packaging components according to claim 1, characterized in that: The upper folding unit (5) comprises an H-shaped plate (51) located above both sides of the carton (6), a screw device (52) is provided between the two groups of the H-shaped plates (51), and the distance between the two groups of the H-shaped plates (51) is adjusted by the screw device (52), and an upper folding structure (53) for folding the upper folding edge of the carton (6) is provided on the side away from each other of the two groups of the H-shaped plates (51).

8. The corner bending device for packaging components according to claim 7, characterized in that: The upper folding structure (53) comprises two groups of folding tubes (535) located on the side away from each other of the two groups of H-shaped plates (51); a fixed seat (538) is rotatably connected between the two groups of folding tubes (535); a connecting plate (533) is slidably provided on the side of the two groups of folding tubes (535) close to the H-shaped plate (51); an adjusting plate (532) is rotatably connected to the connecting plate (533); a driving plate (531) is rotatably connected to the side of the adjusting plate (532) away from the connecting plate (533); the driving plate (531) is connected to the H-shaped plate (51) via a cylinder; an electric telescopic rod (536) is provided on the end away from each other of the two groups of folding tubes (535); and a U-shaped seat (537) is connected to the fixed end of the electric telescopic rod (536).

9. The corner bending device for packaging components according to claim 8, characterized in that: An L-shaped plate (54) is provided between the U-shaped seat (537) and the H-shaped plate (51).

10. The device for corner folding of components for packaging and boxing according to claim 8, characterized in that: The folding tube (535) is provided with a slide table (534), and the folding tube (535) is slidably connected to the connecting plate (533) via the slide table (534). A clamping end is provided at the bottom of the slide table (534) to limit the sliding range of the connecting plate (533).

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