Carton lower sealing device

Abstract

The invention discloses a carton lower sealing device which comprises a lower sealing mechanism, the lower sealing mechanism comprises a push block, a second lower push rod, a lower guide plate and an ejector block, the push block is obliquely arranged on a rack, and the push block is used for pushing a lower front plate of a packaging carton to rotate towards the center; the second lower push rod and the lower guide plate are matched with each other to extrude two lower side plates of the packaging paper box towards the center, the ejector block can upwards abut against a lower rear plate of the packaging paper box and fix the lower rear plate so as to achieve folding and sealing of a lower end opening of the packaging paper box, and compared with folding and sealing of an existing packaging paper box, the device is simple in structure, ingenious in design and high in practicability. The packaging carton folding and sealing device can be suitable for folding and sealing of lower ports of various packaging cartons, the folding quality of the packaging cartons is guaranteed, the folding and packaging efficiency of the packaging cartons is improved, and the production requirements of enterprises are met.

Description

Technical Field

[0001] The invention relates to the technical field of packaging, in particular to a bottom sealing device for a paper box. Background Art

[0002] Packaging cartons are a common packaging container. They are widely used in food, medicine, cosmetics, clothing and other industries because of their low cost, light weight and easy transportation.

[0003] However, before the packaging carton is used, its lower end needs to be sealed so that it can be used to hold and package items. Therefore, the existing packaging carton generally has a crease after leaving the factory to facilitate workers to fold and seal the lower end of the packaging carton along the crease.

[0004] However, manual folding of paper boxes is slow and consumes high labor and time costs, especially when the paper boxes to be folded are small, such as paper boxes used to package paper clips. This often consumes more production costs and cannot meet the production needs of the company. Summary of the invention

[0005] The object of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a paper box bottom sealing device.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A paper box lower sealing device comprises a lower sealing mechanism, which is installed on a frame, and a plurality of movable packaging paper boxes are arranged on the frame. The lower sealing mechanism comprises a push block, a lower push rod 2, a lower guide plate, and a top block. The push block is tiltedly arranged on the frame, and the push block is used to push the lower front plate of the packaging paper box to rotate toward the center. The lower push rod 2 and the lower guide plate cooperate with each other to squeeze the two lower side plates of the packaging paper box toward the center, and the top block can press the lower rear plate of the packaging paper box upwards and fix the lower rear plate.

[0008] Preferably, the lower sealing mechanism also includes a lower push rod and a lower guide rod, the lower push rod can rotate and push the lower side plate to rotate outward, the lower guide rod is arranged between the push block and the lower push rod, the lower guide rod is provided with an arc segment extending outward, the arc segment is used to guide the lower front plate to rotate toward the center, and the lower guide rod abuts upward to limit the lower front plate.

[0009] Preferably, the lower push rod 2 and the lower guide plate are arranged on both sides of the push block, the lower push rod 2 can rotate and push the lower side plate to rotate toward the center, and the lower guide plate is provided with a guide section 1 inclined upward, and the guide section 1 can press the lower side plate toward the center.

[0010] Preferably, the lower sealing mechanism also includes a second lower guide rod, on which is provided an arc segment second extending inward, and the arc segment second is used to guide the lower rear plate to rotate toward the center, and the top block and the second lower guide rod are staggered, and the top block can press the lower rear plate upward and insert the plug plate of the lower rear plate between the lower front plate and the lower side plate.

[0011] Preferably, the lower sealing mechanism further comprises an upper guide rod 1 and a pressing block, wherein the pressing block and the upper guide rod 1 are arranged alternately, and the pressing block can extend downward and press the packaging paper box.

[0012] The beneficial effects of the present invention are:

[0013] 1. The lower front plate is pushed to rotate toward the center of the packaging carton by the inclined push block, and then the lower side plates on both sides can rotate toward the center by the relatively distributed lower push rods and the lower guide plate, and the lower rear plate is pressed upward by the top block, so that the plug plate of the lower rear plate can be plugged into the lower rear plate and the lower side plate to realize the folding and sealing of the lower port of the packaging carton. Compared with the folding and sealing of the existing packaging carton, the device has a simple structure and a sophisticated design, and can be used for the folding and sealing of the lower ports of various packaging carton. While ensuring the folding quality of the packaging carton, the folding and packaging efficiency of the packaging carton is improved to meet the production needs of the enterprise;

[0014] 2. The lower push rod is rotated to push the lower side plate on one side to rotate outward. At the same time, during the transfer of the packaging carton, the lower side plate on the other side is offset and rotated outward due to the inertia of movement, and then the two lower side plates are rotated outward on both sides to avoid the lower side plates interfering with the subsequent folding operations of the lower rear plate and the lower front plate, thereby improving the folding efficiency of the packaging carton and the reliability of folding and packaging of the packaging carton. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional Figure 1 ;

[0016] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0017] Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0018] Figure 4 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0019] Figure 5 It is a structural schematic diagram of the lower sealing mechanism and the upper opening mechanism of the present invention;

[0020] Figure 6 for Figure 5 The enlarged schematic diagram of the center C;

[0021] Figure 7 It is a schematic diagram of the cooperation between the lower push rod 1 and the lower guide rod 1 of the present invention;

[0022] Figure 8 It is a schematic diagram of the cooperation between the lower guide rod 2 and the top block of the present invention;

[0023] Fig. 9 It is a schematic diagram of the cooperation between the upper guide rod 1 and the pressing block of the present invention;

[0024] Fig.10 The three-dimensional Figure 2 ;

[0025] Fig.11 for Fig.10 The enlarged schematic diagram of point D in the middle;

[0026] Fig.12 It is a partial structural schematic diagram of the upper sealing mechanism of the present invention;

[0027] Fig.13 It is a schematic diagram of the cooperation of the upper guide rod 2, the limit plate and the lower pressure plate of the present invention;

[0028] Fig.14 The state diagram of the packaging box of the present invention is shown in FIG. Figure 1 ;

[0029] Fig.15 The state diagram of the packaging box of the present invention is shown in FIG. Figure 2 ;

[0030] Fig.16 The state diagram of the packaging box of the present invention is shown in FIG. Figure 3 ;

[0031] Fig.17 The state diagram of the packaging box of the present invention is shown in FIG. Figure 4 ;

[0032] Fig.18 The state diagram of the packaging box of the present invention is shown in FIG. Figure 5 ;

[0033] Fig.19 The present invention is a schematic diagram of the packaging box state Figure 5 Schematic diagram of looking up at the time;

[0034] Fig. 20 The state diagram of the packaging box of the present invention is shown in FIG. Figure 6 ;

[0035] Fig.21 The state diagram of the packaging box of the present invention is shown in FIG. Figure 7 ;

[0036] Fig. 22 The present invention is a schematic diagram of the packaging box state Figure 7Schematic diagram of looking up at the time;

[0037] Fig.23 The state diagram of the packaging box of the present invention is shown in FIG. Figure 8 ;

[0038] Fig.24 The state diagram of the packaging box of the present invention is shown in FIG. Figure 9 ;

[0039] Fig.25 The state diagram of the packaging box of the present invention is shown in FIG. Figure 10 .

[0040] In the figure: frame 1, fixing clamp 11, transmission belt 12, platform 13, baffle 14, abutment plate 15, slide bar 16, feeding mechanism 2, feeding trough 21, limiting rod 22, slide plate 23, suction cup 24, rotating member 25, baffle 26, extrusion plate 27, lower sealing mechanism 3, lower push rod 1 31, lower rotating rod 1 311, lower guide rod 1 32, arc segment 1 321, push block 33, driving member 1 331, lower push rod 2 34, lower rotating rod 2 341, lower guide plate 35, guide segment 1 351, lower guide rod 2 36, arc segment 2 361, top block 37, driving member 2 371, upper guide rod 1 38, arc segment 3 381, pressure block 39, driving member 3 391, upper opening mechanism 4. upper push rod 1 41, upper rotating rod 1 411, upper guide plate 1 42, guide section 2 421, extension plate 1 422, lower hopper 5, upper sealing mechanism 6, upper push rod 2 61, upper rotating rod 2 611, upper guide plate 2 62, guide section 3 621, extension plate 2 622, upper guide rod 2 63, arc section 4 631, folding plate 64, driving member 4 641, limiting plate 65, arc plate 651, lower pressure plate 66, driving member 5 661, discharging mechanism 7, discharging chute 71, push plate 72, driving member 6 721, packaging carton 8, peripheral plate 81, upper side plate 82, upper end plate 83, folding plate 831, lower side plate 84, lower front plate 85, lower rear plate 86, insert plate 861. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0042] In the description of this specification, the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0043] like Figure 1 to Figure 25As shown, a paper box lower sealing device includes a lower sealing mechanism 3, which is installed on a frame 1. The frame 1 is provided with a plurality of cyclically moving fixed clamps 11, and the moving path direction of the fixed clamps 11 is the front-to-back direction. Specifically, the frame 1 is provided with an annular transmission belt 12, and the fixed clamps 11 are installed on the transmission belt 12. The transmission belt 12 is used to drive the fixed clamps 11 to move, and the fixed clamps 11 are used to clamp and fix the packaging paper box 8, and the packaging paper box 8 can move synchronously with the fixed clamps 11. A platform 13 is provided on the frame 1, and a baffle 14 is installed on the platform 13. The baffle 14 is arranged close to the outer side of the fixed clamp 11 to prevent the packaging paper box 8 on the fixed clamp 11 from falling out of the fixed clamp 11 during folding operations.

[0044] The packaging paper box 8 includes a peripheral plate 81 with through holes opened at the upper and lower parts, the outer periphery of the peripheral plate 81 abuts against the inner side of the fixing clamp 11, two upper side plates 82 are respectively arranged on both sides of the upper end of the peripheral plate 81, an upper end plate 83 is also arranged at the upper end of the peripheral plate 81, a folding plate 831 that can be bent is arranged on the upper end plate 83, two lower side plates 84 are respectively arranged on both sides of the lower end of the peripheral plate 81, and a relatively distributed lower front plate 85 and a lower rear plate 86 are also arranged at the lower end of the peripheral plate 81.

[0045] The moving direction of the fixing clamp 11 is provided with a feeding mechanism 2 , a lower sealing mechanism 3 , an upper opening mechanism 4 , a lower hopper 5 , an upper sealing mechanism 6 , and a discharging mechanism 7 .

[0046] refer to Figure 1 , Figures 5 to 9 As shown, the lower sealing mechanism 3 includes a lower push rod 1 31, a lower guide rod 1 32, a push block 33, a lower push rod 2 34, a lower guide plate 35, a lower guide rod 2 36, a top block 37, an upper guide rod 1 38, and a pressure block 39. The lower push rod 1 31 and the lower guide rod 1 32 are arranged below the fixing clamp 11. The lower push rod 1 31 is rotatably mounted on the frame 1 through a lower rotating rod 1 311, so that the lower push rod 1 31 can rotate and push the lower side plate 84 to rotate outward. Specifically, refer to Figure 5 In the direction shown, the lower push rod 31 rotates and abuts against the lower side plate 84 on the rear side and rotates to the rear side (the front-to-back direction of this embodiment refers to the front-to-back direction of the movement of the fixing clamp 11, i.e. Figure 5 The left side of the figure is the rear direction).

[0047] During the transfer of the packaging paper box 8, the lower side plate 84 on the other side deviates and rotates outwards with the inertia of the movement, that is, it deflects toward the front side with the movement of the fixing clamp 11, and then the two lower side plates 84 rotate outwards on both sides. Figure 15 to Figure 16 The state of the packaging carton 8 changes.

[0048] The lower side plate 84 is rotated to both sides to avoid interference with the subsequent folding operations of the lower rear plate 86 and the lower front plate 85, thereby improving the folding efficiency of the packaging box 8 and the reliability of folding and packaging of the packaging box 8.

[0049] The lower guide rod 32 is arranged between the push block 33 and the lower push rod 31, and the lower guide rod 32 is provided with an arc segment 321 extending outward, and the arc segment 321 is used to guide the lower front plate 85 to rotate toward the center. The arc segment 321 is arranged close to the lower push rod 31, and the lower push rod 31 is rotated to push the rear lower side plate 84 to rotate outward, and then the lower front plate 85 is squeezed toward the center of the packaging paper box 8 through the arc segment 321, and the lower guide rod 32 is upwardly abutted against the limit lower front plate 85, so that the lower front plate 85 maintains an inclined state of rotating toward the center, refer to Figure 16 to Figure 17 The state of the packaging carton 8 changes.

[0050] The push block 33 is tiltedly arranged on the frame 1, and the push block 33 is arranged near one end of the lower guide rod 32 away from the arc segment 321. A driving member 331 is tiltedly installed on the platform 13. The driving member 331 can be a cylinder. The output end of the driving member 331 is connected to the push block 33 to drive the push block 33 to reciprocate. The push block 33 is used to push the lower front plate 85 of the packaging box 8 to rotate toward the center, so that the lower front plate 85 rotates toward the lower port of the closed packaging box 8, and through the tilted guiding setting of the guide rod 32, the lower front plate 85 is tilted and positioned, so that the rotation operation of the lower front plate 85 is more reliable and stable.

[0051] The lower push rod 2 34 and the lower guide plate 35 are arranged on both sides of the push block 33. The lower rotating rod 2 341 is rotatably installed on the frame 1. The lower rotating rod 2 341 is used to drive the lower push rod 2 34 to swing back and forth. The lower push rod 2 34 can rotate and push the lower side plate 84 to rotate toward the center. Figure 6 As shown, the lower push rod 2 34 rotates to push the lower side plate 84 on the front side to rotate toward the center of the packaging paper box 8.

[0052] The lower guide plate 35 is provided with a guide section 351 inclined upward, and the guide section 351 can press the lower side plate 84 toward the center. The guide section 351 of the lower guide plate 35 cooperates with the lower push rod 34 to squeeze the two lower side plates 84 of the packaging paper box 8 toward the center, so as to fold the lower front plate 85 and the lower side plate 84 in sequence to close the lower port of the packaging paper box 8. Figure 17 to Figure 18 The state of the packaging carton 8 changes.

[0053] A lower guide rod 2 36 is provided at the rear side of the lower guide plate 35, and an arc segment 2 361 extending inward is provided on the lower guide rod 36. The arc segment 2 361 is provided close to the lower guide plate 35, and the arc segment 2 361 is used to guide the lower rear plate 86 to rotate toward the center, and press the lower rear plate 86 upward through the lower guide rod 2 36, so that the lower rear plate 86 maintains an inclined state of rotating toward the center, refer to Figures 18 to 20 The state of the packaging carton 8 changes.

[0054] A second driving member 371 is installed on the platform 13. The second driving member 371 can be a cylinder. The output end of the second driving member 371 is connected to the top block 37 to drive the top block 37 to move back and forth up and down. The top block 37 and the second lower guide rod 36 are staggered to avoid interference of the second lower guide rod 36 with the movement of the top block 37. The top block 37 can press upward against the lower rear plate 86 of the packaging box 8 and fix the lower rear plate 86 so that the lower rear plate 86 can rotate toward the lower port of the packaging box 8, and the lower rear plate 86 is tilted and positioned through the inclined guide setting of the second lower guide rod 36, so that the rotation operation of the lower rear plate 86 is more reliable and accurate.

[0055] Specifically, the top block 37 can press the lower rear plate 86 upward and insert the plug plate 861 of the lower rear plate 86 between the lower front plate 85 and the lower side plate 84. By first tilting the lower rear plate 86, the plugging operation of the plug plate 861 is more accurate, and the plug plate 861 is inserted between the lower front plate 85 and the lower side plate 84 to fix the lower rear plate 86, and the lower rear plate 86, the lower front plate 85, and the lower side plate 84 cooperate to achieve the closure of the lower end of the packaging carton 8. Figure 20 to Figure 22 The state of the packaging carton 8 changes.

[0056] One end of the upper guide rod 38 is provided with an arc segment 381 extending outward, and the arc segment 381 is used to guide the upper end plate 83 to rotate outward. Fig.17 The state of the middle packaging paper box 8 is maintained, and the upper end plate 83 is squeezed and guided by the guide rod 38, so that the upper end plate 83 remains in a state of being rotated outwardly to ensure that the upper end of the packaging paper box 8 can be opened outwardly.

[0057] The frame 1 is provided with a butt plate 15, which is arranged close to the lower end of the fixing clamp 11. A pressure block 39 is arranged above the butt plate 15. The pressure block 39 is staggered with the upper guide rod 1 38. A driving member 391 is installed on the frame 1. The driving member 391 can be a cylinder. The output end of the driving member 391 is connected to the pressure block 39 to drive the pressure block 39 to move back and forth. The pressure block 39 can extend downward and press the packaging box 8. The pressure block 39 presses the lower rear plate 86, the lower front plate 85, and the lower side plate 84 of the packaging box 8 downward, so that the closure of the lower port of the packaging box 8 is more reliable.

[0058] This embodiment also discloses a carton folding packaging device, referring to Figure 1 , Figure 2 , Figure 4 , Fig.10 As shown, the feeding mechanism 2 includes a feeding trough 21, a limiting rod 22, a slide plate 23, a suction cup 24, a rotating member 25, a baffle 26, and a pressing plate 27. A plurality of flat packaging paper boxes 8 (see Fig.14 The suction cup 24 is used to grab the packaging box 8 located on the feed trough 21 and can move back and forth between the feed trough 21 and the fixing clamp 11. One end of the suction cup 24 utilizes negative pressure to absorb the peripheral plate 81 of the packaging box 8 and transfer the packaging box 8 to the corresponding fixing clamp 11 side.

[0059] The limiting rod 22 is disposed at one end of the feed chute 21 close to the fixing clamp 11 , and the limiting rod 22 abuts against the packaging paper box 8 in the feed chute 21 , so that the packaging paper box 8 will not fall and can be transported in the feed chute 21 more neatly.

[0060] The suction cup 24 is installed on a rotating member 25, and the rotating member 25 is installed on a slide plate 23 that can slide back and forth. The slide plate 23 is slidably installed on the slide bar 16 of the platform 13. The slide plate 23 can slide back and forth along the length direction of the slide bar 16 and between the feed trough 21 and the corresponding fixed clamp 11, that is, drive the suction cup 24 to move back and forth between the feed trough 21 and the corresponding fixed clamp 11.

[0061] The rotating member 25 can drive the suction cup 24 to reciprocate toward the feed trough 21 or the fixed clamp 11 side. The rotating member 25 can be a rotating cylinder, so that the suction cup 24 can be repeatedly rotated 180 degrees through the action of the rotating member 25. After the suction cup 24 grabs the packaging box 8 in the feed trough 21, the suction cup 24 is driven to rotate 180 degrees through the rotating member 25. At this time, the suction cup 24 rotates toward the corresponding fixed clamp 11, and the packaging box 8 grabbed by the suction cup 24 can be transferred to the fixed clamp 11 by continuing to move the suction cup 24.

[0062] The baffle plate 26 and the squeezing plate 27 are arranged opposite to each other. The baffle plate 26 and the squeezing plate 27 are distributed on the path where the suction cup 24 transfers the packaging paper box 8. The squeezing plate 27 is used to squeeze and open the packaging paper box 8. Figure 14 to Figure 15 The state of the packaging paper box 8 changes, and the squeezing plate 26 squeezes the flat packaging paper box 8 being transferred, so that the packaging paper box 8 can be stretched outward and clamped on the fixing clamp 11, and then the packaging paper box 8 can be subsequently processed with the movement of the fixing clamp 11.

[0063] The baffle 26 abuts against the side of the packaging box 8. The baffle 26 arranged on the side can abut against the side of the expanded packaging box 8 to ensure that the packaging box 8 will not be excessively squeezed and deformed, thereby improving the reliability and stability of the transfer of the packaging box 8.

[0064] refer to Figure 1 , Figure 5 to Figure 7 As shown, the upper opening mechanism 4 is arranged above the fixing clamp 11, and the upper opening mechanism 4 includes an upper push rod 41 and an upper guide plate 42. An upper rotating rod 411 is rotatably arranged on the frame 1, and the upper rotating rod 411 is used to drive the upper push rod 41 to rotate. The upper push rod 41 can rotate and push the upper side plate 82 to rotate outward, refer to Figure 5 As shown, the upper push rod 41 rotates to push the upper side plate 82 on the rear side to rotate outward.

[0065] The upper guide plate 1 42 is provided with a guide section 2 421 inclined downward, and the guide section 2 421 can press the upper side plates 82 to both sides. The upper push rod 1 41 cooperates with the guide section 2 421 of the upper guide plate 1 42 to drive the two upper side plates 82 to rotate to both sides.

[0066] Further, an extension plate 422 is provided on the upper guide plate 42, the upper guide rod 38 is provided on the rear side of the extension plate 422, the arc segment 381 is provided close to the side of the extension plate 422, the extension plate 422 extends to the rear side, and the extension plate 422 is downwardly abutted against the upper side plate 82 to ensure that the two upper side plates 82 will not rebound, and the upper side plates 82 are pressed and shaped, refer to Fig.16 The state of the middle packaging carton 8.

[0067] refer to Figure 5 , Fig. 9 As shown, the lower hopper 5 is arranged on the moving path of the fixed clamp 11. The lower hopper 5 is provided with materials for conveying into the packaging paper box 8, such as paper clips and other materials. A certain amount of materials are fed into the lower hopper 5 through equipment such as a vibrating plate, and then the materials are conveyed into the packaging paper box 8 through the lower hopper 5.

[0068] Furthermore, the lower hopper 5 is arranged near the other end of the upper guide rod 38, and is squeezed outwardly by the upper guide rod 38 to guide the upper end plate 83 to avoid the upper side plate 82 and the upper end plate 83 from interfering with the subsequent material conveying operation into the packaging paper box 8, so that the packaging material operation of the packaging paper box 8 is smoother and more reliable.

[0069] refer to Figure 10 to Figure 13As shown, the upper sealing mechanism 6 includes an upper push rod 61, an upper guide plate 62, an upper guide rod 63, a folding plate 64, a limit plate 65, and a lower pressure plate 66. The frame 1 is equipped with an upper rotating rod 611, which is used to drive the upper push rod 61 to swing back and forth, so that the upper push rod 61 can rotate and push the upper side plate 82 to rotate toward the center. Fig.11 As shown, the upper push rod 2 61 rotates and pushes the upper side plate 82 on the rear side to rotate toward the center of the packaging paper box 8.

[0070] The upper guide plate 62 is provided with a guide section 3 621 inclined downward, and the guide section 3 621 can press the two upper side plates 82 toward the center. The upper push rod 61 and the upper guide plate 62 cooperate with each other to squeeze the two upper side plates 82 of the packaging paper box 8 toward the center, so as to press the upper side plates 82 down to the upper end of the packaging paper box 8. For details, please refer to Figure 21 to Figure 23 The state of the packaging carton 8 changes.

[0071] The upper guide rod 63 is arranged on the rear side of the guide plate 62, and is provided with an arc segment 4 631 extending inwardly. The arc segment 4 631 is used to guide the upper end plate 83 to rotate toward the center, and the upper guide rod 63 is pressed downward on the upper end plate 83 to keep the upper end plate 83 in an inclined state rotating toward the center of the packaging paper box 8.

[0072] The upper guide plate 62 is provided with an extension plate 622 extending toward the folding plate 64. The extension plate 622 and the upper guide rod 63 are arranged parallel to each other. The upper end plate 83 pressed down by the upper guide rod 63 is pressed against the extension plate 622. A driving member 641 is installed on the frame 1. The driving member 641 can be a cylinder. The output end of the driving member 641 is connected to the lower pressure plate 66 to drive the lower pressure plate 66 to move reciprocatingly up and down, so that the lower pressure plate 66 can press downward the upper end plate 83 of the packaging paper box 8 and press down and fix the upper end plate 83.

[0073] Specifically, the second extension plate 622 abuts upward against the upper end plate 83, the folding plate 831 of the upper end plate 83 exceeds the second extension plate 622, and the folding plate 64 moves downward and cooperates with the second extension plate 622 to bend the folding plate 831 of the upper end plate 83 so that the folding plate 831 can be plugged into the upper end of the packaging paper box 8, refer to Figure 23 to Figure 24 The state of the packaging carton 8 changes.

[0074] A driving member 5 661 is installed on the frame 1, and the driving member 5 661 can be a cylinder. The output end of the driving member 5 661 is connected to the lower pressure plate 66 to drive the lower pressure plate 66 to move back and forth up and down. The upper guide rod 2 63 extends to the inner side of the lower pressure plate 66, and a limiting plate 65 is arranged on the outer side of the lower pressure plate 66. The limiting plate 65 is used to abut the limiting folding plate 831. The lower pressure plate 66 is located between the limiting plate 65 and the upper guide rod 2 63.

[0075] The upper end plate 83 is pressed downward by the upper guide rod 63, and the folding plate 831 which has been bent is limited by the limiting plate 65, so that the folding plate 831 can always maintain a downward trend and avoid the rebound of the folding plate 831 affecting subsequent packaging. The upper end plate 83 is then pressed downward by the lower pressing plate 66 to plug the folding plate 831 onto the two upper side plates 82 to achieve the closure of the upper port of the packaging carton 8, that is, to complete the packaging operation of the packaging carton 8. Figure 24 to Figure 25 The state of the packaging carton 8 changes.

[0076] Furthermore, an arc plate 651 extending outward is provided at one end of the limiting plate 65 , and the arc plate 651 can enable the folding plate 831 to abut against the limiting plate 65 more smoothly.

[0077] refer to Figure 1 , Figure 3 , Fig.10 As shown, the discharging mechanism 7 includes a discharging chute 71, a push plate 72, and a driving member 6 721. The driving member 6 721 is installed on the frame 1. The driving member 6 721 can be a cylinder. The output end of the driving member 6 721 is connected to the push plate 72 to drive the push plate 72 to move back and forth. The push plate 72 moves and pushes the packaging paper box 8 fixed on the fixing clamp 11 to the discharging chute 71, and outputs the packaged packaging paper box 8 through the discharging chute 71. Compared with the folding and sealing of the existing packaging paper box 8, the equipment of this embodiment has a simple structure and a sophisticated design. It can adapt to the folding and sealing of the lower ports of various packaging paper boxes 8. While ensuring the folding quality of the packaging paper box 8, the folding and packaging efficiency of the packaging paper box 8 is improved to meet the production needs of the enterprise.

[0078] This embodiment also discloses a paper box packaging method, comprising the following steps:

[0079] a. Place the flat packaging paper box 8 in the material trough 21, grab the packaging paper box 8 through the suction cup 24 and transfer it to the side of the fixing clamp 11. At the same time, a pressing plate 27 and a baffle 26 are arranged on the transfer path of the packaging paper box 8. The pressing plate 27 can press the packaging paper box 8 to open the flat packaging paper box 8, and then the baffle 26 abuts against the side of the opened packaging paper box 8 to transfer the packaging paper box 8 to the fixing clamp 11;

[0080] b. Push the lower front plate 85 to rotate toward the center through the inclined push block 33, and rotate the two lower side plates 84 toward the center through the cooperation between the lower push rod 34 and the lower guide plate 35, and then press the lower rear plate 86 upward through the top block 37, so that the plug plate 861 of the lower rear plate 86 is plugged into the lower rear plate 86 and the lower side plate 84, so as to close the lower end of the packaging carton 8;

[0081] c. The upper push rod 41 rotates and cooperates with the upper guide plate 42 to drive the two upper side plates 82 to rotate to both sides, and then the upper guide rod 38 squeezes and guides the upper end plate 83 to drive the upper side plates 82 and the upper end plate 83 of the upper end of the packaging paper box 8 to tilt outward, so that the upper end of the packaging paper box 8 is in an outward expansion state;

[0082] d. Conveying materials into the packaging paper box 8 through the lower hopper 5, such as conveying materials such as paper clips into the packaging paper box 8;

[0083] e. The upper push rod 61 rotates and cooperates with the upper guide plate 62 to drive the two upper side plates 82 to rotate toward the center, and then the extension plate 622 abuts against the upper end plate 83 upward. At the same time, the folding plate 64 moves downward to bend the folding plate 831, and the upper end plate 83 is pressed downward by the lower pressing plate 66 to insert the folding plate 831 onto the two upper side plates 82 to close the upper end of the packaging paper box 8, thereby completing the folding and packaging operations of the packaging paper box 8;

[0084] f. Push the packaging paper box 8 on the fixing clamp 11 to the discharge slot 71 through the push plate 72 , and convey the packaged packaging paper box 8 through the discharge slot 71 .

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A carton bottom sealing device, comprising a bottom sealing mechanism (3), wherein the bottom sealing mechanism (3) is mounted on a frame (1), and a plurality of movable packaging cartons (8) are arranged on the frame (1), characterized in that: The lower sealing mechanism (3) comprises a push block (33), a lower push rod (34), a lower guide plate (35), and a top block (37); the push block (33) is tiltedly arranged on the frame (1); the push block (33) is used to push the lower front plate (85) of the packaging box (8) to rotate toward the center; the lower push rod (34) and the lower guide plate (35) cooperate with each other to press the two lower side plates (84) of the packaging box (8) toward the center; and the top block (37) can press the lower rear plate (86) of the packaging box (8) upwards and fix the lower rear plate (86).

2. A carton bottom sealing device as claimed in claim 1, characterized in that: The lower sealing mechanism (3) further comprises a lower push rod (31) and a lower guide rod (32). The lower push rod (31) is capable of rotating and pushing the lower side plate (84) to rotate outward. The lower guide rod (32) is arranged between the push block (33) and the lower push rod (31). The lower guide rod (32) is provided with an arc segment (321) extending outward. The arc segment (321) is used to guide the lower front plate (85) to rotate toward the center. The lower guide rod (32) abuts upward against the lower front plate (85) to limit the position.

3. A carton bottom sealing device as claimed in claim 1, characterized in that: The lower push rod 2 (34) and the lower guide plate (35) are arranged on both sides of the push block (33); the lower push rod 2 (34) can rotate and push the lower side plate (84) to rotate toward the center; the lower guide plate (35) is provided with a guide section 1 (351) inclined upward, and the guide section 1 (351) can press the lower side plate (84) toward the center.

4. A carton bottom sealing device as claimed in claim 1, characterized in that: The lower sealing mechanism (3) further comprises a lower guide rod (36), on which is provided a second arc segment (361) extending inwardly, the second arc segment (361) being used to guide the lower rear plate (86) to rotate toward the center, the top block (37) and the lower guide rod (36) being arranged alternately, the top block (37) being able to press the lower rear plate (86) upward and insert the plug plate (861) of the lower rear plate (86) between the lower front plate (85) and the lower side plate (84).

5. A carton bottom sealing device as claimed in claim 1, characterized in that: The lower sealing mechanism (3) further comprises an upper guide rod (38) and a pressing block (39). The pressing block (39) and the upper guide rod (38) are arranged alternately. The pressing block (39) can extend downward into and press the packaging paper box (8).

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