A packing device for automatic folding of cardboard boxes

Abstract

The present invention relates to the technical field of carton packing, and discloses an automatic folding and packing device for cartons, which includes a transportation component. A driving component is arranged at the upper end of the transportation component, and a box sealing component is arranged at the upper end of the driving component. A pressing component is arranged on one side of the box sealing component. The transportation component includes a base. Uniformly distributed rollers are movably installed at the upper end of the base. Side plates are fixedly installed on both sides of the upper end of the base. Uniformly distributed air blowers are fixedly installed on the side surfaces of the upper ends of the side plates. Two bearings on the same horizontal line are arranged at both ends of the side of the base. The pressing component includes frame bars. The number of the frame bars is two and they are symmetrically distributed. Chutes are opened on the inner sides of the frame bars. Connecting plates are fixedly connected to the front and rear ends of the frame bars. A movable plate is arranged on the inner side of the frame bars. This automatic folding and packing device for cartons has the functions of cleaning the front folding plate before folding and tilting inward in advance, and the effect of pressing the tape tightly again after the tape is adhered.

Description

Technical Field

[0001] The present invention relates to the technical field of carton packing, and more particularly to a packing device for automatic folding of cartons. Background Art

[0002] In modern times with a high degree of industrialization, the production speed of various products has been greatly improved. Therefore, the use of cartons for product packaging must also be faster. Under the existing technology, a packing device with automatic folding of cartons is used to automatically and quickly package cartons. Generally, such an automatic lid-sealing carton sealer will cooperate with an assembly line for operation. During work, only the four foldable panels formed on the bottom surface of the carton need to be folded, and after putting in the items, they are input into the conveying track driven by two belts on both sides. The carton lid folding device on the upper side of the carton sealer is started, and the lid-sealing is completed at one time. Using an automatic lid-sealing carton sealer will make the carton packaging work faster and more convenient;

[0003] However, in actual use, the existing automatic lid-sealing carton sealer still has the following deficiencies;

[0004] First of all, after the existing automatic lid-sealing carton sealer fits the tape on the carton, due to the need to cooperate with the pressure of the carton movement, the pressure of the roller lid folding device on the original machine is relatively low. Therefore, after the carton leaves the roller, the tape attached to the carton may not be tightly attached to the carton, which will affect the subsequent tape sealing effect of the carton. And the existing automatic lid-sealing carton sealer does not have a device that can make the tape fit the carton precisely;

[0005] Secondly, before the existing automatic lid-sealing carton sealer feeds the carton into the machine for folding, the folding board of the carton needs to be slightly inclined inward. Generally, such an effect is assisted manually, so it requires a certain amount of manpower. And the existing automatic lid-sealing carton sealer does not have the function of cleaning the surface of the carton folding board before folding the lid, which is likely to affect the subsequent tape fitting condition on the surface of the carton folding board;

[0006] Therefore, a packing device for automatic folding of cartons is needed to solve the above problems. Summary of the Invention

[0007] In order to overcome the above-mentioned defects of the prior art, the present invention provides a packing device for automatic folding of cartons to solve the problems existing in the above background art.

[0008] The present invention provides the following technical solutions: A packing device for automatic folding of cartons includes a transportation component, a driving component is arranged at the upper end of the transportation component, a carton sealing component is arranged at the upper end of the driving component, and a pressing component is arranged on one side of the carton sealing component;

[0009] The transportation component includes a base, on the upper end of which evenly distributed rollers are movably installed. On both sides of the upper end of the base, side plates are fixedly installed, and evenly distributed blowers are fixedly installed on the side surfaces of the upper ends of the side plates. At both ends of the side of the base, there are two bearings on the same horizontal line.

[0010] The pressing component includes two frame bars which are symmetrically distributed. Chutes are opened on the inner sides of the frame bars. Connecting plates are fixedly connected to the front and rear ends of the frame bars. On the inner sides of the frame bars, there are movable plates. The number of the movable plates is four and they are symmetrically distributed in pairs. Sliders are arranged on the outer side surfaces of the movable plates, and the movable plates are movably connected to the chutes of the frame bars by means of the sliders.

[0011] Furthermore, the driving component includes two mounting shells which are symmetrically distributed. Evenly distributed rotating shafts are movably installed inside the mounting shells. Transmission belts are sleeved on the rotating shafts in a transmission manner. The rotating shafts at the ends of the mounting shells are fixedly connected to the driving shafts of the first motors. Two threaded bushings are fixedly connected to the bottom ends of the mounting shells. Lead screw shafts are in transmission connection with the threaded bushings at the aligned positions on both sides, and the threaded bushings have opposite helix directions at relative positions.

[0012] Furthermore, a synchronous belt is in transmission connection between the shafts of the lead screw shafts. A second motor is fixedly connected to the shaft of the lead screw shaft. The bottom end of the second motor is fixedly connected to a fixing plate, and the fixing plate is fixedly connected to the side of the base. The first motors and the threaded bushings are both located below the rollers. The two ends of the shafts of the lead screw shafts are movably sleeved with the bearings, and the driving shafts of the first motors pass through the gaps between the rollers without interference with them.

[0013] Furthermore, the case-sealing component includes a fixing frame. Side plates are fixedly installed at both ends of the inner side of the fixing frame. Wheel shafts are fixedly connected to the front and rear ends of the side plates. Wheel frames are movably sleeved on the shafts of the wheel shafts. Pressing wheels are movably installed at the bottom ends of the wheel frames. Movable shafts are movably sleeved on the upper ends of the wheel frames. A connecting frame is movably sleeved between the front and rear shafts of the movable shaft, and a support shaft is fixedly connected between the middle inner sides of the connecting frame.

[0014] Further, a tool rest shaft is fixedly connected between the inner sides of one ends of the side plates. Both ends of the shaft body of the tool rest shaft are movably sleeved with tool rest plates. A connecting shaft is fixedly connected between the ends of the tool rest plates. A cutting knife is fixedly installed between the inner sides of the tool rest plates. The cutting edge of the cutting knife faces downward and is inclined at a certain angle. A support plate is fixedly installed at the upper end inside the side plate. A tape sleeve shaft is movably sleeved at the upper end of the support plate. A beam plate is fixedly installed at the front end of the side plate. Two tongue folding rods are symmetrically distributed at the front end of the beam plate. A beam frame is fixedly connected to the front end of the beam plate. A driving electric cylinder is arranged at the upper end of the beam frame. The driving shaft of the driving electric cylinder is movably connected with a connecting piece. The bottom end of the connecting piece is movably connected with a fixing piece. The fixing piece is fixedly connected to the upper surface of the beam frame. A folding cover connecting rod is fixedly connected to the front end of the connecting piece. A tongue folding plate is fixedly installed at the bottom of the beam frame. Cross beams are fixedly installed at both ends of the fixing frame. The driving shafts of air cylinders are fixedly connected to the bottom sides of both ends of the cross beams. The bottom ends of the air cylinders are fixedly connected with a bottom plate. The bottom plate is fixedly connected to the outer side surface of the base.

[0015] Further, a connecting block is fixedly installed above the movable plate at one end on the same side of the frame bar. The connecting block is fixedly connected with a piston shaft. The piston shaft is movably sleeved with a cavity column. A sleeve block is fixedly installed above the movable plate at the other end on the same side of the frame bar. The end of the cavity column is fixedly connected with the sleeve block. An air pipe is fixedly connected to the internal cavity of the cavity column. The pipe body of the air pipe is fixedly connected with an air pump. The air pump is fixedly connected to the outer side surface of the base. A fitting roller is movably sleeved between the opposite positions at the bottom ends of the movable plates. Support blocks are fixedly connected to the outer side surfaces of the frame bars. The driving shafts of servo electric cylinders are fixedly connected to the bottom ends of the support blocks. The bottom ends of the servo electric cylinders are fixedly connected with a plate seat. The plate seat is fixedly connected to the outer side surface of the base.

[0016] The technical effects and advantages of the present invention:

[0017] The present invention is provided with a pressing component. When the cardboard box slides into the pressing component after being sealed with tape, at this time, the servo electric cylinder drives the upper frame bar to move downward so that the fitting rollers at both ends are located on both sides of the cardboard box. Then, under the air extraction of the air pump, the piston shaft contracts in the cavity column, so that the movable plates on both sides approach each other on the frame bar, and finally the fitting rollers on both sides press against the tape sealing parts on both sides of the cardboard box with a certain pneumatic pressure, and move up and down under the control of the servo electric cylinder. Under the up and down rolling movement of the fitting rollers, the tape on the cardboard box can be pressed against the cardboard box again, thereby preventing the tape from falling off due to insufficient adhesion.

[0018] The present invention is provided with a transportation component. When the carton automatic folding and packing device is working, it will first pass through the inner side of the side plate. Under the blowing of the fan, the folding plate of the carton will tilt slightly inward, so as to better cooperate with the subsequent automatic lid folding work. At the same time as the fan blows, the dust on the carton folding plate will be blown away, so as to achieve a good cleaning effect. When the carton moves between the installation shells, the second motor drives the lead screw shaft to rotate. The rotation of the lead screw shaft drives the threaded bushing on both sides to move closer to each other, and at the same time drives the installation shell to clamp the carton. Under the drive of the first motor, the rotating shaft drives the conveyor belt to operate, so as to drive the clamped carton to move. Brief Description of the Drawings

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

[0020] Figure 2 It is a schematic diagram of the structure of the transportation component and the drive component of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the carton sealing component of the present invention.

[0022] Figure 4 It is a schematic diagram of the internal structure of the carton sealing component of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the pressing component of the present invention.

[0024] Reference numerals are: 1, transportation component; 101, base; 102, roller; 103, side plate; 104, fan; 105, bearing; 2, drive component; 201, installation shell; 202, rotating shaft; 203, conveyor belt; 204, first motor; 205, threaded bushing; 206, lead screw shaft; 207, synchronous belt; 208, second motor; 209, fixing plate; 3, carton sealing component; 301, fixing frame; 302, side plate; 303, wheel shaft; 304, wheel frame; 305, pressing wheel; 306, movable shaft; 307, connecting frame; 308, support shaft; 309, cutter holder shaft; 310, cutter holder plate; 311, connecting shaft; 312, cutter; 313, support plate; 314, tape sleeve shaft; 315, beam plate; 316, folding tongue rod; 317, beam frame; 318, driving electric cylinder; 319, connecting piece; 320, fixing piece; 321, folding lid connecting rod; 322, folding tongue plate; 323, cross beam; 324, cylinder; 325, bottom plate; 4, pressing component; 401, frame bar; 402, connecting plate; 403, movable plate; 404, slider; 405, connecting block; 406, piston shaft; 407, cavity column; 408, sleeve block; 409, air pipe; 410, air pump; 411, fitting roller; 412, support block; 413, servo electric cylinder; 414, plate seat. Detailed Embodiments

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. In addition, the forms of each structure described in the following embodiments are merely examples, and a carton automatic folding and packing device related to the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] Referring to Figure 1 , the present invention provides a carton automatic folding and packing device, including a transportation component 1. A driving component 2 is arranged at the upper end of the transportation component 1. A sealing component 3 is arranged at the upper end of the driving component 2. A pressing component 4 is arranged on one side of the sealing component 3;

[0027] In this embodiment, the carton is transported by rolling on the transportation component 1. The driving component 2 is used to clamp the carton and drive it to move linearly. Under the action of the sealing component 3, the folding and sealing work is carried out. After completion, it slides to the lower part of the pressing component 4. Under the action of the pressing component 4, the tape attached to the carton is further pressed.

[0028] Referring to Figure 2 , the transportation component 1 includes a base 101. Uniformly distributed rollers 102 are movably installed at the upper end of the base 101. Side plates 103 are fixedly installed on both sides of the upper end of the base 101. Uniformly distributed air blowers 104 are fixedly installed on the upper side surfaces of the side plates 103. Two bearings 105 on the same horizontal line are arranged at both ends of the side surface of the base 101. The driving component 2 includes mounting shells 201. The number of the mounting shells 201 is two and they are symmetrically distributed. Uniformly distributed rotating shafts 202 are movably installed inside the mounting shells 201. Transmission belts 203 are sleeved on the rotating shafts 202 in a transmission manner. The rotating shaft 202 at the end of the mounting shell 201 is fixedly connected to the driving shaft of a first motor 204. Two threaded bushings 205 are fixedly connected to the bottom ends of the mounting shells 201. A lead screw shaft 206 is in transmission connection with the threaded bushings 205 at the aligned positions of the two side mounting shells 201. The threads of the threaded bushings 205 are opposite in rotation direction at the relative positions. A synchronous belt 207 is in transmission connection between the lead screw shafts 206. The lead screw shaft 206 is fixedly connected to a second motor 208. The bottom end of the second motor 208 is fixedly connected to a fixing plate 209. The fixing plate 209 is fixedly connected to the side surface of the base 101. The first motor 204 and the threaded bushings 205 are both located below the rollers 102. Both ends of the lead screw shaft 206 are movably sleeved with the bearings 105. The driving shaft of the first motor 204 passes through the gap of the roller 102 and does not interfere with it;

[0029] In this embodiment, when the cardboard box moves on the roller 102, it will first pass through the inner side of the side plate 103. Under the blowing of the fan 104, the folding plate of the cardboard box will tilt slightly inward, so as to better cooperate with the subsequent automatic lid folding work. At the same time as the fan 104 blows, the dust on the folding plate of the cardboard box will be blown away, so as to achieve a good cleaning effect. When the cardboard box moves between the mounting shells 201, the second motor 208 drives the lead screw shaft 206 to rotate. The rotation of the lead screw shaft 206 drives the threaded bushings 205 on both sides to move closer to each other, and at the same time drives the mounting shell 201 to clamp the cardboard box, and drives the rotating shaft 202 to drive the conveyor belt 203 to operate under the drive of the first motor 204, so as to drive the clamped cardboard box to move.

[0030] Referring to Figure 3 and Figure 4 , the case sealing assembly 3 includes a fixing frame 301. Both ends of the inner side of the fixing frame 301 are fixedly installed with side plates 302. Both the front and rear ends of the side plates 302 are fixedly connected with wheel shafts 303. The shafts of the wheel shafts 303 are movably sleeved with wheel frames 304. The bottom ends of the wheel frames 304 are movably installed with pressing wheels 305. The upper ends of the wheel frames 304 are movably sleeved with movable shafts 306. A connecting frame 307 is movably sleeved between the front and rear shafts of the movable shaft 306. A support shaft 308 is fixedly connected between the middle inner sides of the connecting frame 307. A knife rest shaft 309 is fixedly connected between the inner side surfaces of one end of the side plate 302. Knife rest plates 310 are movably sleeved at both ends of the shaft of the knife rest shaft 309. A connecting shaft 311 is fixedly connected between the ends of the knife rest plates 310. A cutting knife 312 is fixedly installed between the inner side surfaces of the knife rest plates 310. The blade of the cutting knife 312 faces downward and is inclined at a certain angle. A support plate 313 is fixedly installed at the upper end of the inner side of the side plate 302. A tape sleeve shaft 314 is movably sleeved at the upper end of the support plate 313. A beam plate 315 is fixedly installed at the front end of the side plate 302. Two folding tongue rods 316 are symmetrically distributed at the front end of the beam plate 315. A beam frame 317 is fixedly connected to the front end of the beam plate 315. A driving electric cylinder 318 is provided at the upper end of the beam frame 317. The driving shaft of the driving electric cylinder 318 is movably connected with a connecting member 319. The bottom end of the connecting member 319 is movably connected with a fixing member 320. The fixing member 320 is fixedly connected with the upper surface of the beam frame 317. A folding lid connecting rod 321 is fixedly connected to the front end of the connecting member 319. A folding tongue plate 322 is fixedly installed at the bottom of the beam frame 317. Cross beams 323 are fixedly installed at both ends of the fixing frame 301. The driving shafts of cylinders 324 are fixedly connected to the bottom sides of both ends of the cross beams 323. The bottom ends of the cylinders 324 are fixedly connected with bottom plates 325. The bottom plates 325 are fixedly connected with the outer side surfaces of the base 101;

[0031] In this embodiment, first, the tape is sleeved on the tape sleeve shaft 314, and the tape is pulled out. A section is reserved at the end of the tape and made to rest on the front pressing wheel 305. The height of the folding tongue plate 322 is adjusted by the synchronous control of the air cylinder 324 so that the height of the folding tongue plate 322 is flush with the crease position of the cardboard folding plate. Then, during the movement of the cardboard box, the short folding plate of the cardboard box first contacts the folding tongue plate 322 and is flattened. At the same time, the driving electric cylinder 318 drives the connecting member 319 to drive the folding cover connecting rod 321 to move downward so that the end folding plate at the other end of the cardboard box is flattened. Then, the long folding plates on both sides of the cardboard box will be resisted by the folding tongue rods 316 on both sides during the movement and gradually folded inward. When the cardboard box moves and contacts the front pressing wheel 305, the folded part of the cardboard box will contact the adhesive surface of the tape and bond it. At the same time, it will push the pressing wheel 305 to swing the rear wheel frame 304 upward by using the connecting frame 307. At this time, the front and rear wheel frames 304 and the pressing wheel 305 move upward and inward for storage, and drive the middle knife rest plate 310 and the cutting knife 312 to also move upward for storage. At this time, the front and rear pressing wheels 305 both contact the folded part of the cardboard box. During the movement of the cardboard box, it will continuously drive the tape to be pulled out and cooperate with the rolling effect of the pressing wheel 305 to make the tape fit on the folded part of the folding plate. Then, when the cardboard box separates from the rear pressing wheel 305, the two pressing wheels 305 are no longer pressed and reset downward, and at the same time drive the cutting knife 312 to move downward to cut the tape. The cut tape will still rest on the front pressing wheel 305. Through the above structure, the automatic folding and sealing work of the cardboard box can be realized.

[0032] Referring to Figure 5 , the attaching and pressing assembly 4 includes a frame bar 401. The number of the frame bars 401 is two and they are symmetrically distributed. Sliding grooves are formed on the inner sides of the frame bars 401. Connecting plates 402 are fixedly connected to the front and rear ends of the frame bars 401. An active plate 403 is arranged on the inner side of the frame bars 401. The number of the active plates 403 is four and they are symmetrically distributed in pairs. Sliders 404 are arranged on the outer sides of the active plates 403. The active plates 403 are movably connected to the sliding grooves of the frame bars 401 by using the sliders 404. A connecting block 405 is fixedly installed above one end of the active plates 403 on the same side of the frame bar 401. The connecting block 405 is fixedly connected to a piston shaft 406. The piston shaft 406 is movably sleeved with a cavity column 407. A sleeve block 408 is fixedly installed above the active plates 403 at the other end on the same side of the frame bar 401. The end of the cavity column 407 is fixedly connected to the sleeve block 408. An air pipe 409 is fixedly connected to the internal cavity of the cavity column 407. An air pump 410 is fixedly connected to the pipe body of the air pipe 409. The air pump 410 is fixedly connected to the outer side of the base 101. A fitting roller 411 is movably sleeved between the opposite positions at the bottom ends of the active plates 403. Support blocks 412 are fixedly connected to the outer sides of the frame bars 401. The bottom ends of the support blocks 412 are fixedly connected to the drive shafts of servo electric cylinders 413. The bottom ends of the servo electric cylinders 413 are fixedly connected to a plate base 414. The plate base 414 is fixedly connected to the outer side of the base 101;

[0033] In this embodiment, when the cardboard box slides into the attaching assembly 4 after being sealed with tape, at this time, the servo electric cylinder 413 drives the upper frame bar 401 to move downward so that the attaching rollers 411 at both ends are located on both sides of the cardboard box. Then, under the air extraction of the air pump 410, the piston shaft 406 contracts in the cavity column 407, so that the movable plates 403 on both sides approach each other on the frame bar 401. Finally, the attaching rollers 411 on both sides attach to the tape-sealed parts on both sides of the cardboard box with a certain pneumatic pressure, and move up and down under the control of the servo electric cylinder 413. Under the up-and-down rolling movement of the attaching rollers 411, the tape on the cardboard box can be attached to the cardboard box again, thereby preventing the tape from falling off due to insufficient adhesion.

[0034] The working principle and beneficial effects of the present invention: When the cardboard box automatic folding and packing device is working, it will first pass through the inner side of the side plate 103. Under the blowing of the fan 104, the folding plates of the cardboard box will tilt inward slightly, so as to better cooperate with the subsequent automatic lid folding work. At the same time as the fan 104 blows, the dust on the folding plates of the cardboard box will be blown off, so as to achieve a good cleaning effect. When the cardboard box moves between the mounting shells 201, the second motor 208 drives the lead screw shaft 206 to rotate. The rotation of the lead screw shaft 206 drives the threaded bushing sleeves 205 on both sides to approach each other, and at the same time drives the mounting shells 201 to clamp the cardboard box. And under the drive of the first motor 204, the rotating shaft 202 drives the transmission belt 203 to operate, so as to drive the clamped cardboard box to move. When the cardboard box slides into the attaching assembly 4 after being sealed with tape, at this time, the servo electric cylinder 413 drives the upper frame bar 401 to move downward so that the attaching rollers 411 at both ends are located on both sides of the cardboard box. Then, under the air extraction of the air pump 410, the piston shaft 406 contracts in the cavity column 407, so that the movable plates 403 on both sides approach each other on the frame bar 401. Finally, the attaching rollers 411 on both sides attach to the tape-sealed parts on both sides of the cardboard box with a certain pneumatic pressure, and move up and down under the control of the servo electric cylinder 413. Under the up-and-down rolling movement of the attaching rollers 411, the tape on the cardboard box can be attached to the cardboard box again, thereby preventing the tape from falling off due to insufficient adhesion.

[0035] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, and can also be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the described object changes, the relative position relationship may change;

[0036] Secondly: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference may be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0037] Finally: The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A packing device for automatically folding cartons, characterized in that: It comprises a transport component (1), a driving component (2) is provided at the upper end of the transport component (1), a box sealing component (3) is provided at the upper end of the driving component (2), and a tightening component (4) is provided on one side of the box sealing component (3); The transport assembly (1) comprises a base (101), the upper end of the base (101) is movably provided with rollers (102) that are evenly distributed, the upper ends of the base (101) are both fixedly provided with side panels (103), the upper side surfaces of the side panels (103) are both fixedly provided with fans (104) that are evenly distributed, and two bearings (105) that are on the same horizontal line are provided at both ends of the side surfaces of the base (101); The drive assembly (2) comprises a mounting shell (201), the number of the mounting shells (201) being two and symmetrically distributed, the interior of each mounting shell (201) being movably mounted with evenly distributed rotating shafts (202), the rotating shafts (202) being transmission sleeves connected with transmission belts (203), the rotating shafts (202) at the end of the mounting shell (201) being fixedly connected to a driving shaft of a first motor (204), the bottom end of each mounting shell (201) being fixedly connected to two threaded sleeves (205), the threaded sleeves (205) being transmission-connected to lead screw shafts (206) at aligned positions of the mounting shells (201) on both sides, and the threaded sleeves (205) having opposite rotation directions at relative positions; The clamping assembly (4) comprises a frame bar (401), wherein the number of the frame bars (401) is two and they are symmetrically distributed, the inner side of each of the frame bars (401) is provided with a sliding groove, the front and rear ends of the frame bars (401) are fixedly connected with a connecting plate (402), the inner side of the frame bar (401) is provided with a movable plate (403), the number of the movable plates (403) is four and they are symmetrically distributed in pairs, the outer side surfaces of the movable plates (403) are provided with a slider (404), the movable plate (403) is movably connected to the sliding groove of the frame bar (401) by means of the slider (404), a connecting block (405) is fixedly installed above the movable plate (403) at one end on the same side of the frame bar (401), the connecting block (405) is fixedly connected with a piston shaft (406), the piston shaft (406) is movably sleeved with a cavity column (407), and the frame bar A sleeve block (408) is fixedly installed above the movable plate (403) at the other end of the same side as (401), the end of the cavity column (407) is fixedly connected to the sleeve block (408), the internal cavity of the cavity column (407) is fixedly connected to an air pipe (409), the tube body of the air pipe (409) is fixedly connected to an air pump (410), the air pump (410) is fixedly connected to the outer side surface of the base (101), a fitting roller (411) is movably sleeved between the relative positions of the bottom ends of the movable plate (403), the outer sides of the frame bars (401) are fixedly connected to support blocks (412), the bottom ends of the support blocks (412) are fixedly connected to the driving shaft of the servo electric cylinder (413), the bottom end of the servo electric cylinder (413) is fixedly connected to a plate seat (414), and the plate seat (414) is fixedly connected to the outer side surface of the base (101).

2. The automatic folding and packing device for cartons according to claim 1, characterized in that: A synchronous belt (207) is transmission-connected between the shaft bodies of the screw shaft (206); a second motor (208) is fixedly connected to the shaft body of the screw shaft (206); a fixing plate (209) is fixedly connected to the bottom end of the second motor (208); the fixing plate (209) is fixedly connected to the side of the base (101); the first motor (204) and the threaded sleeve (205) are both located below the roller (102); both ends of the shaft body of the screw shaft (206) are movably sleeved with the bearing (105); and a drive shaft of the first motor (204) passes through a gap in the roller (102) and does not interfere with it.

3. The automatic folding and packing device for cartons according to claim 1, characterized in that: The box sealing assembly (3) comprises a fixed frame (301), side plates (302) are fixedly mounted on both inner ends of the fixed frame (301), wheel axles (303) are fixedly connected to front and rear ends of the side plates (302), the shaft bodies of the wheel axles (303) are movably sleeved with wheel frames (304), a pressure wheel (305) is movably mounted on the bottom ends of the wheel frames (304), a movable shaft (306) is movably sleeved on the upper ends of the wheel frames (304), a connecting frame (307) is movably sleeved between the front and rear shaft bodies of the movable shaft (306), and a support shaft (308) is fixedly connected between the middle inner sides of the connecting frame (307).

4. The automatic folding and packing device for cartons according to claim 3, characterized in that: A tool holder shaft (309) is fixedly connected between the inner side surfaces of one end of the side plate (302), a tool holder plate (310) is movably sleeved at both ends of the shaft body of the tool holder shaft (309), a connecting shaft (311) is fixedly connected between the ends of the tool holder plate (310), a cutter (312) is fixedly installed between the inner side surfaces of the tool holder plate (310), the blade of the cutter (312) faces downward and is inclined at a certain angle, a support plate (313) is fixedly installed at the inner upper end of the side plate (302), a tape sleeve shaft (314) is movably sleeved at the upper end of the support plate (313), a beam plate (315) is fixedly installed at the front end of the side plate (302), two symmetrically distributed folding tongue rods (316) are provided at the front end of the beam plate (315), and a beam frame (317) is fixedly connected to the front end of the beam plate (315). ), a driving electric cylinder (318) is provided at the upper end of the beam frame (317), a driving shaft of the driving electric cylinder (318) is movably connected to a connecting piece (319), a fixing piece (320) is movably connected to the bottom end of the connecting piece (319), the fixing piece (320) is fixedly connected to the upper surface of the beam frame (317), a folding cover connecting rod (321) is fixedly connected to the front end of the connecting piece (319), a folding tongue plate (322) is fixedly installed at the bottom of the beam frame (317), cross beams (323) are fixedly installed at both ends of the fixing frame (301), the bottom sides of both ends of the cross beam (323) are fixedly connected to the driving shaft of the cylinder (324), the bottom end of the cylinder (324) is fixedly connected to a bottom plate (325), and the bottom plate (325) is fixedly connected to the outer side surface of the base (101).

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