The structure of mask box packaging equipment

Abstract

The present invention discloses the structure of a mask box packaging device, including a box supply mechanism, a bottom edge folding system located beside the box supply mechanism, a transfer mechanism for transferring a paper box plate on the box supply mechanism to the bottom edge folding system, a box conveyor line located beside the bottom edge folding system, a transfer mechanism for transferring a box on the bottom edge folding system to the box conveyor line, and a mask supply system for transferring masks into boxes on the box conveyor line; the box conveyor line is provided with a front top cover folding station and a rear top cover folding station, the front top cover folding station is provided with a front top cover folding mechanism, and the rear top cover folding station is provided with a rear top cover folding mechanism. After the bottom edge of the paper box plate is folded by the bottom edge folding system, the mask is carried, and then the front top cover and the rear top cover are folded. The present invention provides physical structural conditions for the automation of box loading of masks.

Description

Technical Field

[0001] The invention relates to mask packaging equipment, and in particular to the structure of the packaging equipment. Background Art

[0002] Combination Fig.11 , Fig.12 , a rectangular box for packaging masks, including four side faces, four bottom edges, two top edges and two top covers. The four side faces are respectively the left side face, the right side face 912, the front side face 913 and the rear side face 914; the four bottom edges are respectively the left bottom edge 915, the right bottom edge 916, the front bottom edge 917 and the rear bottom edge 918, wherein the rear bottom edge is provided with an extended edge 919; the two top edges are respectively the left top edge and the right top edge 921, and the two top covers are respectively the front top cover 922 and the rear top cover 923, wherein the front top cover is provided with a front folding edge 924, and the rear top cover is provided with a rear folding edge 925.

[0003] Initially, the box is in a flat plate shape, called a paper box board, with the left side surface being in the same plane with the left bottom edge and the left top edge, the right side surface being in the same plane with the right bottom edge and the right top edge, the front side surface being in the same plane with the front bottom edge and the front top cover, and the rear side surface being in the same plane with the rear bottom edge and the rear top cover; among them, the left side surface is connected to the front side surface, the front side surface is connected to the right side surface, and the right side surface is connected to the rear side surface. A flat box is folded into a three-dimensional box. First, the left side, right side, front side and rear side are opened to make the two adjacent side faces vertical; second, the left bottom edge, right bottom edge, front bottom edge and rear bottom edge are folded upward to make the left bottom edge perpendicular to the left side, the right bottom edge perpendicular to the right side, the front bottom edge perpendicular to the front side, the rear bottom edge perpendicular to the rear side, and the extended edge is flat on the bottom of the box; third, the left top edge and the right top edge are folded into a horizontal shape; fourth, the front top cover is folded toward the rear top cover, and the front folded edge is folded into the gap between one end of the left top edge and the right top edge and the rear side face; fifth, the rear top cover is folded toward the front side face, and the rear folded edge is folded into the opening on the front side face. Summary of the invention

[0004] The technical problem solved by the present invention is: how to fold the front fold edge into the gap between the left top edge, one end of the right top edge and the rear side surface.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: the structure of a mask box packaging device includes a box supply mechanism, a bottom edge folding system located beside the box supply mechanism, a first transfer mechanism for transferring a paper box board on the box supply mechanism to the bottom edge folding system, a box conveyor line located beside the bottom edge folding system, a second transfer mechanism for transferring a box on the bottom edge folding system to the box conveyor line, and a mask supply system for transferring masks into boxes on the box conveyor line; the box conveyor line is provided with a front top cover folding station, the front top cover folding station is provided with a front top cover folding mechanism, the front top cover folding mechanism includes a pair of first V-shaped pressing blocks that can be lifted and lowered and can move away from or approach each other, a front top cover pressing block that can be translated and lifted, a front folding edge pressing block that can be lifted and lowered and translated, and a front top cover pressing member that can be pressed on the front top cover in a rotatable manner; a pair of first V-shaped pressing blocks are located above the left and right sides of the front top cover folding station, the front top cover pressing block is located in front of the front top cover folding station, and the front folding edge pressing block and the front top cover pressing member are located behind the front top cover folding station.

[0006] On the bottom folding system, the left side, right side, front side, and rear side of the box are unfolded, and the left bottom side, right bottom side, front bottom side, and rear bottom side are folded. Then, the box is transferred to the box conveyor line. After the mask is placed in the box, the box is conveyed to the front top cover folding station, and the front top cover folding mechanism folds the left top side, right top side, and front top cover. Then, the box is conveyed to the rear top cover folding station, and the rear top cover folding mechanism folds the rear top cover.

[0007] Among them, the working principle of the front top cover folding mechanism is as follows. A pair of first V-shaped pressing blocks descend, and then translate toward each other, that is, move closer to each other, and fold the left top edge and the right top edge. Afterwards, the front top cover pressing block translates backward to preliminarily fold the front top cover, and the front top cover is pressed on the pair of first V-shaped pressing blocks. Afterwards, the front folding edge pressing block descends, preliminarily folds the front folding edge, and the front folding edge pressing block moves forward to further fold the front folding edge. Afterwards, the front top cover clamping piece is pressed on the front top cover, and the pair of first V-shaped pressing blocks move away from each other and detach from the box. Afterwards, the front top cover pressing block descends and presses down the front top cover, and the front folding edge is folded into the gap between one end of the left top edge, the right top edge and the rear side surface. So far, this technical solution solves the above-mentioned technical problems. The principle of the rear top cover folding mechanism folding the rear top cover is similar to the folding of the front top cover by the front top cover folding mechanism.

[0008] The technical solution of the present invention can accurately fold the front folded edge into the gap between the left top edge, one end of the right top edge and the rear side surface, providing physical structural conditions for the automatic folding of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described below in conjunction with the accompanying drawings:

[0010] Figure 1 It is a schematic diagram of the structure of the mask box packaging equipment;

[0011] Figure 2 is a schematic diagram of the box supply mechanism 10;

[0012] Figure 3 It is a schematic diagram of the combined structure of the first transfer mechanism 31 and the second transfer mechanism 32;

[0013] Figure 4 is a schematic diagram of a bottom edge folding system 20;

[0014] Figure 5 for Figure 4 A schematic diagram of the middle front bottom edge folding mechanism 23;

[0015] Figure 6 is a schematic diagram of the third transfer mechanism 52;

[0016] Figure 7 is a schematic diagram of the front top cover folding mechanism 60;

[0017] Figure 8 for Figure 7 Schematic diagram of the front top cover folding mechanism viewed from the rear;

[0018] Fig. 9 for Figure 7 A schematic diagram of the first V-shaped pressing block 61;

[0019] Fig.10 is a schematic diagram of the rear top cover folding mechanism 70;

[0020] Fig.11 is a schematic diagram of a carton board;

[0021] Fig.12 This is a schematic diagram of the four sides of the carton board after opening.

[0022] Explanation of symbols in the figure:

[0023] 10. Box supply mechanism; 11. Box supply frame; 12. Guide plate; 13. Guide block; 14. Extrusion piece;

[0024] 20. Bottom edge folding system; 21. Positioning device; 211. Cylinder for positioning device; 212. Positioning block; 22. Clamping device; 221. Rotating cylinder; 223. Clamping block; 23. Front bottom edge folding mechanism; 231. Support seat; 232. Cylinder for front bottom edge folding; 233. Rack; 234. Gear shaft; 235. Flap; 24. Rear bottom edge folding mechanism; 25. Left bottom edge folding mechanism; 26. Right bottom edge folding mechanism; 27. Extended edge pressing mechanism;

[0025] 31. First transfer mechanism; 311. First vacuum suction cup; 312. First transfer cylinder; 313. First transfer module; 32. Second transfer mechanism; 321. Clamp; 322. Clamp cylinder of second transfer mechanism; 323. Manipulator of second transfer mechanism;

[0026] 40. Box conveyor line; 41. Initial station; 42. Mask box loading station; 43. Fixture; 45. Unloading station;

[0027] 50. Mask supply system; 51. Mask conveyor line; 52. Third transfer mechanism; 521. Second vacuum suction cup;

[0028] 60. Front top cover folding mechanism; 61. First V-shaped pressure block; 611. First V-shaped pressure block lifting cylinder; 612. Front top cover folding claw cylinder; 62. Front top cover pressure block; 621. Front top cover pressure block lifting cylinder; 622. Front top cover pressure block translation cylinder; 63. Front folding edge pressure block; 631. Front folding edge lifting cylinder; 632. Front folding edge translation cylinder; 64. Front top cover clamping member; 641. Front top cover clamping shaft; 642. Front top cover clamping gear; 643. Front top cover clamping rack; 644. Front top cover clamping cylinder; 65. Rear top cover adsorption plate; 651. Front top cover folding rotating cylinder; 652. Front top cover folding telescopic cylinder; 66. Front top cover folding lifting module; 661. Front top cover folding lifting cylinder;

[0029] 70. Rear top cover folding mechanism; 71. Second V-shaped pressing block; 711. Second V-shaped pressing block lifting cylinder; 712. Clamping claw cylinder for rear top cover folding; 72. Rear top cover pressing block; 721. Rear top cover pressing block lifting cylinder; 722. Rear top cover pressing block translation cylinder; 73. Rear folding edge pressing block; 731. Rear folding edge lifting cylinder; 732. Rear folding edge translation cylinder; 74. Rear top cover clamping member; 741. Rear top cover clamping shaft; 742. Rear top cover clamping gear; 743. Rear top cover clamping rack; 744. Rear top cover clamping cylinder; 76. Rear top cover folding support module;

[0030] 80. A pushing mechanism disposed beside the unloading station 45, the pushing mechanism comprising a pushing plate 81 mounted on a pushing cylinder, pushing the box on the unloading station to the unloading conveying line 82;

[0031] 90, carton board; 91, box; 912, right side; 913, front side; 914, rear side; 915, left bottom edge; 916, right bottom edge; 917, front bottom edge; 918, rear bottom edge; 919, extension edge; 921, right top edge; 922, front top cover; 923, rear top cover; 924, front fold edge; 925, rear fold edge;

[0032] 93. Masks, packaged in PE bags. DETAILED DESCRIPTION

[0033] like Figure 1 The structure of the mask box packaging equipment includes a box supply mechanism 10, a bottom edge folding system 20 located next to the box supply mechanism, a first transfer mechanism 31 for transferring a paper box plate 90 on the box supply mechanism to the bottom edge folding system, a box conveying line 40 located next to the bottom edge folding system, a second transfer mechanism 32 for transferring a box on the bottom edge folding system to the box conveying line, and a mask supply system 50 for transferring a mask 92 into a box 91 on the box conveying line.

[0034] like Figure 2 The box supply mechanism 10 includes a box supply frame 11, a guide plate 12 installed on the box supply frame, a guide block 13 and an extrusion member 14, the extrusion member is located between a pair of guide plates, the extrusion member can be displaced forward and backward relative to the box supply frame, and a plurality of guide blocks are located at the front end of the guide plate; the box supply frame is tilted, with the front lower and the back higher; the first transfer mechanism 31 is provided with a first vacuum suction cup 311 that can move forward and backward, and the bottom edge folding system 20 is located in front of the box supply mechanism.

[0035] A stack of carton plates 90 is placed on the box supply frame 11, located between a pair of guide plates 12, and is in an upright position. The front of the stack of carton plates is blocked by a plurality of guide blocks 13, and a plurality of guide blocks are blocked at the periphery of the carton plates. The extruder 14 acts on the rear of the stack of carton plates to push the stack of carton plates forward. Figure 3 The first transfer mechanism 31 includes a first transfer cylinder 312 and a first transfer module 313 connected to the first transfer cylinder. The first vacuum suction cup 311 is installed on the first transfer module. Driven by the first transfer cylinder, the first vacuum suction cup absorbs the frontmost carton board of a stack of carton boards 90 from the front of the box supply mechanism 10 and pulls it to the bottom folding station of the bottom folding system 20.

[0036] like Figure 4 The right side of the bottom edge folding station is provided with a telescopic positioning device 21, and the left side of the bottom edge folding station is provided with a rotating clamping device 22; the front bottom edge folding mechanism 23, the rear bottom edge folding mechanism 24, the left bottom edge folding mechanism 25 and the right bottom edge folding mechanism 26 are respectively provided on the front, back, left and right sides of the bottom edge folding station, and the bottom of the bottom edge folding station is provided with an extended edge pressing mechanism 27. The positioning device 21, the clamping device 22, the front bottom edge folding mechanism 23, the rear bottom edge folding mechanism 24, the left bottom edge folding mechanism 25 and the right bottom edge folding mechanism 26, and the extended edge pressing mechanism 27 all belong to the bottom edge folding system 20.

[0037] The positioning device 21 includes a positioning device cylinder 211 and a positioning block 212 connected to the positioning device cylinder. The clamping device 22 includes a rotating cylinder 221 and a clamping block 223 connected to the rotating cylinder. The first vacuum suction cup 311 absorbs the front side of the carton plate. When the carton plate 90 is pulled out of the box supply frame 11, due to the action of a plurality of guide blocks 13, the right side of the carton plate is preliminarily folded, and the four sides of the carton plate are preliminarily opened. At the bottom edge folding station, the positioning block 212 acts on the right side, and the clamping block 223 acts on the left side. In this way, the four sides of the carton plate are fully opened and have the prototype of a box. Afterwards, the front bottom edge, left bottom edge, right bottom edge, rear bottom edge, and extended edge of the box are folded in sequence by the front bottom edge folding mechanism 23, the left bottom edge folding mechanism 25, the right bottom edge folding mechanism 26, the rear bottom edge folding mechanism 24, and the extended edge pressing mechanism 27 respectively.

[0038] The structures and working principles of the front bottom edge folding mechanism 23, the left bottom edge folding mechanism 25, the right bottom edge folding mechanism 26, and the rear bottom edge folding mechanism 24 are the same, and the front bottom edge folding mechanism is taken as an example for the following description. Figure 5 The front bottom edge folding mechanism 23 includes a support seat 231, a front bottom edge folding cylinder 232, a rack 233 connected to the front bottom edge folding cylinder, a gear meshing with the rack, a gear shaft 234 fixedly connected to the gear, and a flap 235 installed on the gear shaft, wherein the gear shaft is pivotally connected to the support seat 231. The front bottom edge folding cylinder drives the rack, the rack drives the gear, the gear drives the gear shaft, and the gear shaft drives the flap to rotate from bottom to top to fold the front bottom edge of the box. The extended edge pressing mechanism 27 includes an extended edge pressing cylinder 271 and a pressing block 272 connected to the extended edge pressing cylinder. Under the drive of the extended edge pressing cylinder, the pressing block pushes the extended edge of the box upward to make it flat, specifically, the extended edge is inserted into the card slot at the end of the front bottom edge.

[0039] like Figure 1 The box conveyor line 40 is provided with an initial station 41, a mask boxing station 42, a front cover folding station, a rear cover folding station and a material unloading station. A jig 43 is provided on the box conveyor line for positioning the box.

[0040] like Figure 3 The second transfer mechanism 32 includes a clamp 321 capable of left-right displacement, the clamp is mounted on a second transfer mechanism clamp cylinder 322, the second transfer mechanism clamp cylinder is connected to a second transfer mechanism manipulator 323, and the second transfer mechanism manipulator is a screw mechanism driven by a motor. Driven by the second transfer mechanism manipulator, the clamp can transfer the box 91 on the bottom edge folding system 20 to the initial station 41.

[0041] like Figure 1Under the transport of the box conveyor line 40, the jig 43 carrying the box moves from the initial station to the mask box entry station 42. The mask supply system 50 includes a mask conveyor line 51 and a third transfer mechanism 52, such as Figure 6 The third transfer mechanism includes a second vacuum suction cup 521 that can be displaced forward and backward and can be lifted and lowered. The second vacuum suction cup is installed on the third transfer mechanism cylinder, and the third transfer mechanism cylinder is installed on the third transfer mechanism manipulator. The third transfer mechanism cylinder drives the second vacuum suction cup to lift and lower, and the third transfer mechanism manipulator drives the third transfer mechanism cylinder and the second vacuum suction cup to move forward and backward. The second vacuum suction cup can transfer the masks on the mask conveyor line to the box on the mask boxing station.

[0042] Under the conveyance of the box conveyor line 40, the jig 43 carrying the box is transferred from the mask box loading station 42 to the front cover folding station, and the front cover folding station is provided with a front cover folding mechanism 60, combined with Figure 7 , Figure 8 The front top cover folding mechanism includes a pair of first V-shaped pressing blocks 61 that can be lifted and lowered and can move away from or close to each other, a front top cover pressing block 62 that can be translated and lifted, a front folding edge pressing block 63 that can be lifted and lowered and translated, and a front top cover pressing member 64 that can be pressed on the front top cover in a rotatable manner; the pair of first V-shaped pressing blocks are located above the left and right sides of the front top cover folding station, the front top cover pressing block is located in front of the front top cover folding station, and the front folding edge pressing block and the front top cover pressing member are located behind the front top cover folding station. The front top cover folding mechanism 60 also includes a rear top cover adsorption plate 65 that can be translated and rotated.

[0043] The first V-shaped pressing block 61 is mounted on the first V-shaped pressing block lifting cylinder 611, which is connected to the front top cover folding claw cylinder 612. The front top cover pressing block 62 is mounted on the front top cover pressing block lifting cylinder 621, which is connected to the front top cover pressing block translation cylinder 622. The front folding edge pressing block 63 is L-shaped and mounted on the front folding edge lifting cylinder 631, which is connected to the front folding edge translation cylinder 632, which is mounted on the front top cover folding lifting module 66, which is connected to the front top cover folding lifting cylinder 661. The front top cover pressing member 64 is mounted on the front top cover pressing shaft 641, which is pivotally connected to the front top cover folding and lifting module 66. A front top cover pressing gear 642 is mounted on the front top cover pressing shaft, which is meshed with the front top cover pressing rack 643, which is connected to the front top cover pressing cylinder 644, which is mounted on the front top cover folding and lifting module 66. The rear top cover adsorption plate 65 is connected to the front top cover folding rotating cylinder 651, which is connected to the front top cover folding telescopic cylinder 652.

[0044] In actual operation, driven by the telescopic cylinder 652 for folding the front top cover, the rear top cover adsorption plate 65 comes to the side of the rear top cover and adsorbs the rear top cover. Driven by the rotating cylinder 651 for folding the front top cover, the rear top cover is folded to the outside of the box to provide conditions for the folding of the front top cover. Driven by the first V-shaped pressing block lifting cylinder 611, a pair of first V-shaped pressing blocks 61 descend, and driven by the clamping claw cylinder 612 for folding the front top cover, a pair of first V-shaped pressing blocks translate toward each other to fold the left and right top edges. Afterwards, driven by the front top cover pressing block translation cylinder 622, the front top cover pressing block 62 translates backward to preliminarily fold the front top cover, and the front top cover is pressed on the pair of first V-shaped pressing blocks. Afterwards, driven by the front folding edge lifting cylinder 631, the front folding edge pressing block 63 descends to preliminarily fold the front folding edge. Driven by the front folding edge translation cylinder 632, the front folding edge pressing block moves forward to further fold the front folding edge. Afterwards, driven by the front top cover pressing cylinder 644, the front top cover pressing member 64 presses on the front top cover, and the pair of first V-shaped pressing blocks 61 move away from each other and detach from the box, that is, are pulled out from under the front top cover. Afterwards, driven by the front top cover pressing block lifting cylinder 621, the front top cover pressing block 62 descends and presses down the front top cover, and the front folding edge is folded into the gap between the left top edge, one end of the right top edge and the rear side surface.

[0045] Under the conveyance of the box conveyor line 40, the jig 43 carrying the box is transferred from the front cover folding station to the rear cover folding station. The rear cover folding station is provided with a rear cover folding mechanism 70, such as Fig.10 The rear top cover folding mechanism includes a pair of second V-shaped pressing blocks 71 that can be lifted and lowered and can move away from or approach each other, a rear top cover pressing block 72 that can be translated and can be lifted and lowered, a rear folding edge pressing block 73 that can be lifted and lowered and can be translated, and a rear top cover pressing piece 74 that can be pressed on the rear top cover in a rotatable manner; the pair of second V-shaped pressing blocks are located above the left and right sides of the rear top cover folding station, the rear top cover pressing block is located behind the rear top cover folding station, and the rear folding edge pressing block and the rear top cover pressing piece are located in front of the rear top cover folding station.

[0046] The second V-shaped pressing block 71 is mounted on the second V-shaped pressing block lifting cylinder 711, which is connected to the rear top cover folding claw cylinder 712. The rear top cover pressing block 72 is mounted on the rear top cover pressing block lifting cylinder 721, which is connected to the rear top cover pressing block translation cylinder 722. The rear folding edge pressing block 73 is L-shaped and mounted on the rear folding edge lifting cylinder 731, which is connected to the rear folding edge translation cylinder 732. The rear top cover clamping member 74 is installed on the rear top cover clamping shaft 741, and the rear top cover clamping shaft is pivotally connected to the rear top cover folding support module 76. A rear top cover clamping gear 742 is installed on the rear top cover clamping shaft. The rear top cover clamping gear is meshed with the rear top cover clamping rack 743, and the rear top cover clamping rack is connected to the rear top cover clamping cylinder 744. The rear top cover clamping cylinder is installed on the rear top cover folding support module 76.

[0047] In actual operation, driven by the second V-shaped pressing block lifting cylinder 711, a pair of second V-shaped pressing blocks 71 descend, and a pair of second V-shaped pressing blocks are pressed on the front top cover. Afterwards, driven by the rear top cover pressing block translation cylinder 722, the rear top cover pressing block 72 translates forward to preliminarily fold the rear top cover, and the rear top cover is pressed on the pair of second V-shaped pressing blocks. Afterwards, driven by the rear folding edge lifting cylinder 731, the rear folding edge pressing block 73 descends to preliminarily fold the rear folding edge. Driven by the rear folding edge translation cylinder 732, the rear folding edge pressing block moves backward to further fold the rear folding edge. Afterwards, driven by the rear top cover clamping cylinder 744, the rear top cover clamping piece 74 is pressed on the rear top cover, and the pair of second V-shaped pressing blocks 71 move away from each other and are pulled out from between the rear top cover and the front top cover. Afterwards, driven by the rear top cover pressing block lifting cylinder 721, the rear top cover pressing block 72 descends, pressing down the rear top cover, and the rear folded edge is folded into the opening of the front side.

[0048] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. The structure of a mask box packaging device comprises a box supply mechanism (10), a bottom edge folding system (20) located beside the box supply mechanism, a first transfer mechanism (31) for transferring a paper box plate (90) on the box supply mechanism to the bottom edge folding system, a box conveying line (40) located beside the bottom edge folding system, a second transfer mechanism (32) for transferring a box on the bottom edge folding system to the box conveying line, and a mask supply system (50) for transferring a mask (92) into a box (91) on the box conveying line; the characteristics are as follows: The box conveyor line is provided with a front top cover folding station, and the front top cover folding station is provided with a front top cover folding mechanism (60), and the front top cover folding mechanism comprises a pair of first V-shaped pressing blocks (61) that can be lifted and lowered and can move away from or approach each other, a front top cover pressing block (62) that can be translated and lifted, a front folding edge pressing block (63) that can be lifted and lowered and can be translated, and a front top cover pressing member (64) that can be pressed on the front top cover in a rotatable manner; the pair of first V-shaped pressing blocks are located above the left and right sides of the front top cover folding station, the front top cover pressing block is located in front of the front top cover folding station, and the front folding edge pressing block and the front top cover pressing member are located behind the front top cover folding station; The box conveyor line (40) is provided with a rear top cover folding station, and the rear top cover folding station is provided with a rear top cover folding mechanism (70), and the rear top cover folding mechanism comprises a pair of second V-shaped pressing blocks (71) that can be lifted and lowered and can move away from or close to each other, a rear top cover pressing block (72) that can be translated and lifted, a rear folding edge pressing block (73) that can be lifted and lowered and can be translated, and a rear top cover pressing member (74) that can be pressed on the rear top cover in a rotatable manner; the pair of second V-shaped pressing blocks are located above the left and right sides of the rear top cover folding station, the rear top cover pressing block is located behind the rear top cover folding station, and the rear folding edge pressing block and the rear top cover pressing member are located in front of the rear top cover folding station; The bottom edge folding system (20) is provided with a bottom edge folding station, a telescopic positioning device (21) is provided on the right side of the bottom edge folding station, and a rotating clamping device (22) is provided on the left side of the bottom edge folding station; a front bottom edge folding mechanism (23), a rear bottom edge folding mechanism (24), a left bottom edge folding mechanism (25) and a right bottom edge folding mechanism (26) are provided on the front, rear, left and right sides of the bottom edge folding station respectively, and an extending edge pressing mechanism (27) is provided at the bottom of the bottom edge folding station; The box conveyor line (40) is provided with an initial station (41) and a mask boxing station (42); the second transfer mechanism (32) includes a clamp (321) that can be displaced left and right, and the clamp can transfer the box (91) on the bottom edge folding system (20) to the initial station; the mask supply system (50) includes a mask conveyor line (51) and a third transfer mechanism (52); the third transfer mechanism includes a second vacuum suction cup (521) that can be displaced forward and backward and can be raised and lowered, and the second vacuum suction cup can transfer the masks on the mask conveyor line to the box on the mask boxing station.

2. The structure of the mask box packaging equipment according to claim 1 is characterized in that: The front top cover folding mechanism (60) also includes a rear top cover adsorption plate (65) that is capable of translation and rotation.

3. The structure of the mask box packaging equipment according to claim 1 is characterized in that: The box supply mechanism (10) comprises a box supply frame (11), a guide plate (12) mounted on the box supply frame, a guide block (13) and an extrusion member (14), wherein the extrusion member is located between a pair of guide plates and can be displaced forward and backward relative to the box supply frame, and a plurality of guide blocks are located at the front end of the guide plate; the box supply frame is tilted with the front lower and the rear higher; the first transfer mechanism (31) is provided with a first vacuum suction cup (311) that can be moved forward and backward, and the bottom edge folding system (20) is located in front of the box supply mechanism.

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