A paper box side ear double-sided synchronous forming device

Abstract

This invention relates to a device for synchronously forming side ears on both sides of a cardboard box. The device includes a cardboard box forming platform comprising two symmetrically arranged cardboard box forming units for folding the second side ears and side covers at both ends of the cardboard box along its length; two symmetrically arranged first side ear folding units for folding the first side ears of the cardboard box; and a cardboard box transport unit for transporting and conveying the cardboard box. This device, relating to the field of cardboard box forming technology, is used for sealing cardboard boxes with openings at both ends. It enables the simultaneous folding of the first side ears (which have creases at both ends) by the two symmetrically arranged first side ear folding units, followed by the folding of the second side ears and side covers by the two symmetrically arranged cardboard box forming units. This automatically completes the folding of the side ears and side covers at both ends. The synchronous operation on both sides significantly improves work efficiency and ensures the consistency of cardboard box forming.

Description

Technical Field

[0001] This invention relates to the field of paper box forming technology, and in particular to a paper box side lug forming device with simultaneous forming on both sides. Background Technology

[0002] Cardboard boxes are a common packaging material. Among various packaging options, cardboard boxes are highly adaptable, and paper, as a recyclable and reusable material, has the best prospects for the foreseeable future. To save storage space and facilitate mass production and sales, existing cardboard boxes are typically made with unfolded or folded structures. Both structures result in a sheet-like blank that requires further processing to become a finished box. The most common type of cardboard box packaging is the snap-fit, bottom-sealed type. The finished box is a flattened double-layer blank that needs to be unfolded into a cuboid before it can be sealed. In automated production, this multi-faceted structure involves handling, stacking, folding, and enclosing.

[0003] See the cardboard box forming process. Figure 15 The paper box forming process involves the following steps: the initial blank is a rectangular box with openings at both ends. The first side ears 801, the second side ears 802, and the side covers 803 at both ends of the paper box need to be folded and sealed to the openings at both ends of the paper box. Due to the complexity of the process, it can currently only be folded and formed manually. However, manual operation alone results in low work efficiency and inconsistent folding quality during the folding of the side ears and side covers, thus leading to high production costs. This production mode cannot meet the needs of further improving the high speed and high quality of paper box folding and forming.

[0004] Therefore, there is an urgent need for a device that can automatically fold and form the side ears and side covers of cardboard boxes to meet the current demand for automated production. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that there is no automated machinery or equipment for the production of the side ears and side covers of paper boxes in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention provides a paper box side lugs double-sided synchronous forming device, comprising: a paper box forming platform, the two ends of which are a paper box feeding end and a formed paper box discharging end, respectively; the paper box forming platform includes two symmetrically arranged paper box forming units, which are respectively used for folding the second side lugs and side covers at both ends of the paper box in the length direction; and two symmetrically arranged first side lugs folding units, which are located at the paper box feeding end, and the two symmetrically arranged first side lugs folding units and the two symmetrically arranged paper box forming units are arranged in a one-to-one correspondence, the first side lugs folding units being used for folding the paper box side lugs and side covers. The first side ear of the box is folded; a paper box transport unit is arranged between two symmetrically arranged paper box forming units, and the paper box transport unit is used for transporting the paper box; the paper box forming unit includes a support frame, a side cover folding assembly and an insert side cover assembly, the paper box transport unit is located between the two support frames, the side cover folding assembly and the insert side cover assembly are both arranged on the support frame, the side cover folding assembly is used for folding the second side ear and the side cover, and the insert side cover assembly is used for inserting the folded side cover into the paper box, the first side ear folding unit, the side cover folding assembly and the insert side cover assembly are arranged sequentially according to the transport direction of the paper box.

[0007] In one embodiment of the present invention, the first side ear folding unit includes a vertical cylinder, a connecting plate, a horizontal side ear folding cylinder, a connecting plate, a rotating shaft, a side ear folding push rod, a torsion spring, and a limiting post. The connecting plate is connected to the piston rod of the vertical cylinder, the horizontal side ear folding cylinder is mounted on the connecting plate, the connecting plate is connected to the piston rod of the horizontal side ear folding cylinder, the limiting post is mounted on the connecting plate, and the side ear folding push rod is connected to the rotating shaft and... A horizontal cylinder for folding side ears is connected. A rotating shaft is used to allow the folding side ear push rod to rotate around the shaft when folding the first side ear. A torsion spring is sleeved on the rotating shaft. One end of the torsion spring abuts against a limiting post, and the other end of the torsion spring abuts against the side wall of the folding side ear push rod. The torsion spring is used to reset the folding side ear push rod. A vertical cylinder drives the folding side ear push rod to be in the same horizontal position as the cardboard box. The horizontal cylinder for folding side ears drives the first side ear of the folding side ear push rod to bend inward toward the inside of the cardboard box.

[0008] In one embodiment of the present invention, the cardboard box handling unit includes a support base, a vertical handling cylinder, a horizontal handling support plate, a horizontal handling cylinder, a gripper mounting rectangular frame, and a plurality of cardboard box handling components arranged symmetrically in pairs. The vertical handling cylinder is fixedly mounted on the support base. The horizontal handling support plate is connected to the piston rod of the vertical handling cylinder. The horizontal handling cylinder is mounted on the horizontal handling support plate. One end of the gripper mounting rectangular frame is connected to the piston rod of the horizontal handling cylinder, and the gripper mounting rectangular frame is slidably connected to the horizontal handling support plate. Cardboard box handling components are provided on both opposite long sides of the gripper mounting rectangular frame. The cardboard box is placed on the symmetrically arranged cardboard box handling components.

[0009] In one embodiment of the present invention, the paper box handling assembly includes a paper box suction nozzle and two symmetrically arranged paper box limiting grippers. The paper box suction nozzle and the two symmetrically arranged paper box limiting grippers are on the same straight line, and the paper box suction nozzle is located between the two symmetrically arranged paper box limiting grippers. The paper box suction nozzle is used to suction the paper box. The end of the paper box in the length direction is disposed on the two symmetrically arranged paper box limiting grippers, and the two symmetrically arranged paper box limiting grippers are used to limit the paper box.

[0010] In one embodiment of the present invention, the side cover folding assembly includes a paper box folding guide plate, a paper box folding guide rod, and a plurality of guide rod mounting plates. The paper box folding guide plate and the plurality of guide rod mounting plates are all disposed on a support frame. The paper box folding guide rod is disposed on the plurality of guide rod mounting plates. A gap is provided between the paper box folding guide plate and the support frame for the second side ear of the paper box and the side cover to enter. The cross-section of the paper box folding guide rod is circular, and the axial direction of the paper box folding guide rod is arranged along the conveying direction of the paper box. The paper box folding guide rod is bent upward and inward along the conveying direction of the paper box.

[0011] In one embodiment of the present invention, the paper box folding guide rod includes an inlet portion, a first folding portion, a second folding portion, and an outlet portion. The inlet portion, the first folding portion, the second folding portion, and the outlet portion are connected together sequentially along the direction from the paper box feeding end to the formed paper box discharge end. The inlet portion is inclined downwards. The first folding portion is arranged horizontally and parallel to the paper box conveying direction. The first folding portion is used to fold the first crease at the connection position between the side cover and the paper box. The second folding portion is inclined upwards and tilted towards the paper box opening direction. The second folding portion is used to fold the second crease of the side cover. The outlet portion is arranged horizontally and parallel to the paper box conveying direction. The outlet portion is in contact with the outer wall of the side cover.

[0012] In one embodiment of the present invention, the paper box folding guide plate includes an L-shaped connecting plate, an upper plate, a side plate, and a pressure plate. The L-shaped connecting plate is fixedly connected to the support frame. One side of the upper plate is connected to the upper end of the L-shaped connecting plate. The side plate is connected to the other side of the upper plate. The pressure plate is connected to the side plate. The L-shaped connecting plate, the upper plate, the side plate, and the pressure plate form a rectangular cavity structure with an opening. The paper box folding guide rod is located in the rectangular cavity. A gap is provided between the pressure plate and the support frame. The upper plate is provided with a side ear pusher plate one at the end near the paper box feeding end. The side plate is provided with a side ear pusher plate two at the end near the paper box feeding end. The pressure plate is provided with a side ear pusher plate three at the end near the paper box feeding end. The length of the side ear pusher plate three is greater than that of the side ear pusher plate one and the side ear pusher plate two. The side ear pusher plate one, the side ear pusher plate two, and the side ear pusher plate three are inclined towards the center of the rectangular cavity. The side ear pusher plate one, the side ear pusher plate two, and the side ear pusher plate three are used for second side ear folding and forming.

[0013] In one embodiment of the present invention, the side cover assembly includes a horizontal support plate, a direct-push cylinder, a direct-push slide plate, a vertical support plate, a vertical adjustment cylinder, a vertical slide plate, and a side cover push plate. The direct-push cylinder is fixedly mounted on the horizontal support plate. One end of the direct-push slide plate is connected to the piston rod of the direct-push cylinder. The vertical support plate and the other end of the direct-push slide plate are fixedly connected. The vertical adjustment cylinder is mounted on the vertical support plate. The vertical slide plate and the piston rod of the vertical adjustment cylinder are connected. The side cover push plate and the lower end of the vertical slide plate are fixedly connected. The side cover push plate is arranged parallel to the cardboard box. The vertical adjustment cylinder and the direct-push cylinder drive the side cover push plate to push the folded side cover end into the cardboard box.

[0014] In one embodiment of the invention, the end of the side cover push plate away from the vertical slide plate is configured as a thin sheet.

[0015] In one embodiment of the present invention, the insert side cover assembly further includes a sliding support base, a linear guide rail four, a slider four, a connecting rod, and a connecting plate four. The linear guide rail four is fixedly mounted on the sliding support base and is arranged along the conveying direction of the paper box. The slider four is fixedly connected to the horizontal support plate one and slidably connected to the linear guide rail four. The connecting plate four is connected to the horizontal support plate one through the connecting rod. Two symmetrical and parallel cylindrical guide rods are connected to the connecting plate four. The connecting rod four is connected to the side wall of the clamp mounting rectangular frame. A cam follower is installed at the end of the connecting rod four. The cam follower is located in the gap between the two symmetrical and parallel cylindrical guide rods and is rotatably connected to the cylindrical guide rod.

[0016] Compared with the prior art, the above-described technical solution of the present invention has the following advantages:

[0017] The paper box side ear double-sided synchronous forming device of the present invention is used for sealing paper boxes with openings at both ends. It can simultaneously fold the side ears with creases at both ends and the side cover through two symmetrically arranged first side ear folding units, and then fold the second side ears and the side cover through two symmetrical paper box forming units, thereby automatically completing the folding of the side ears and the side cover at both ends. The double-sided synchronous working mode can greatly improve work efficiency and ensure the consistency of paper box forming. Attached Figure Description

[0018] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the paper box side ear synchronous forming device in a preferred embodiment of the present invention;

[0020] Figure 2 This is a partial structural schematic diagram of the paper box side ear double-sided synchronous forming device in a preferred embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the paper box forming unit in a preferred embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the first side ear folding unit in a preferred embodiment of the present invention. Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the structure of the first side ear folding unit in a preferred embodiment of the present invention. Figure 2 ;

[0024] Figure 6 This is a schematic diagram of the structure of the paper box handling unit in a preferred embodiment of the present invention. Figure 1 ;

[0025] Figure 7 This is a schematic diagram of the structure of the paper box handling unit in a preferred embodiment of the present invention. Figure 2 ;

[0026] Figure 8 This is a schematic diagram of the structure of the cardboard box handling assembly in a preferred embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the side cover folding assembly in a preferred embodiment of the present invention. Figure 1 ;

[0028] Figure 10 This is a schematic diagram of the side cover folding assembly in a preferred embodiment of the present invention. Figure 2 ;

[0029] Figure 11 This is a schematic diagram of the structure of the paper box folding guide rod in a preferred embodiment of the present invention. Figure 1 ;

[0030] Figure 12 This is a schematic diagram of the structure of the paper box folding guide rod in a preferred embodiment of the present invention. Figure 2 ;

[0031] Figure 13 This is a schematic diagram of the side cover assembly in a preferred embodiment of the present invention. Figure 1 ;

[0032] Figure 14 This is a schematic diagram of the side cover assembly in a preferred embodiment of the present invention. Figure 2 ;

[0033] Figure 15 This is a flowchart of the paper box forming process in a preferred embodiment of the present invention.

[0034] Explanation of reference numerals in the accompanying drawings: 1. Carton forming platform; 10. Carton forming unit; 11. Support frame; 12. Side cover folding assembly; 120. Gap; 121. Carton folding guide plate; 1211. L-shaped connecting plate; 1212. Upper plate; 1213. Side plate; 1214. Pressure plate; 1215. Side ear push plate one; 1216. Side ear push plate two; 1217. Side ear push plate three; 1218. Carton folding guide rod; 1229. Inlet section; 1220. First... Folding section 1222, second folding section 1223, outlet section 1224, guide rod mounting plate 123, side cover assembly 13, horizontal support plate 131, direct push cylinder 132, direct push slide plate 133, vertical support plate 134, vertical adjustment cylinder 135, vertical slide plate 136, side cover push plate 137, linear guide rail 2 138, slider 2 139, linear guide rail 3 1310, slider 3 1311, sliding support Support 1312, Linear guide rail 4 1313, Slider 4 1314, Connecting rod 1315, Connecting plate 4 1316, Cylindrical guide rod 1317, Paper box feeding end 101, Formed paper box discharging end 102, First side ear folding unit 2, Vertical cylinder 1 21, Connecting plate 1 22, Folding side ear horizontal cylinder 1 23, Connecting plate 2 24, Rotating shaft 1 25, Folding side ear push rod 1 26, Torsion spring 27, Limiting post 1 28, Paper Box handling unit 3, support base 31, guide sleeve 311, vertical handling cylinder 32, horizontal handling support plate 33, guide column 331, linear guide rail 332, horizontal handling cylinder 34, gripper mounting rectangular frame 35, slider 351, connecting rod 352, cam follower 353, paper box handling assembly 36, paper box suction nozzle 361, paper box limiting gripper 362, paper box clamping cylinder 30, paper box gripper 301. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0036] Reference Figure 1-3 As shown, the paper box side lugs double-sided synchronous forming device of the present invention includes a paper box forming platform 1, with its two ends in the length direction being a paper box feeding end 101 and a formed paper box discharging end 102, respectively. The paper box forming platform 1 includes two symmetrically arranged paper box forming units 10, which are respectively used for folding the second side lugs and side covers at both ends in the length direction of the paper box; two symmetrically arranged first side lug folding units 2 are located at the paper box feeding end 101, and the two symmetrically arranged first side lug folding units 2 and the two symmetrically arranged paper box forming units 10 are arranged in a one-to-one correspondence, with the first side lug folding units 2 used for folding the first side lugs of the paper box; the paper box... A transport unit 3 is disposed between two symmetrically arranged carton forming units 10, and the carton transport unit 3 is used for transporting and conveying the carton; the carton forming unit 10 includes a support frame 11, a side cover folding assembly 12, and a side cover insertion assembly 13. The carton transport unit 3 is located between the two support frames 11. The side cover folding assembly 12 and the side cover insertion assembly 13 are both disposed on the support frame 11. The side cover folding assembly 12 is used for folding the second side ear and the side cover. The side cover insertion assembly 13 is used for inserting the folded side cover into the carton. The first side ear folding unit 2, the side cover folding assembly 12, and the side cover insertion assembly 13 are arranged sequentially according to the conveying direction of the carton.

[0037] Reference Figure 4 , 5 As shown, the first side ear folding unit 2 includes a vertical cylinder 21, a connecting plate 22, a horizontal folding side ear cylinder 23, a connecting plate 24, a rotating shaft 25, a folding side ear push rod 26, a torsion spring 27, and a limiting post 28. The connecting plate 22 is connected to the piston rod of the vertical cylinder 21. The horizontal folding side ear cylinder 23 is mounted on the connecting plate 22. The connecting plate 24 is connected to the piston rod of the horizontal folding side ear cylinder 23. The limiting post 28 is mounted on the connecting plate 22. The folding side ear push rod 26 is connected to the folding side ear cylinder 23 via the rotating shaft 25. A horizontal cylinder 23 is connected to the side ear. The rotating shaft 25 is used to allow the side ear folding push rod 26 to rotate around the shaft when folding the first side ear. The torsion spring 27 is sleeved on the rotating shaft 25. One end of the torsion spring 27 abuts against the limiting post 28, and the other end of the torsion spring 27 abuts against the side wall of the side ear folding push rod 26. The torsion spring 27 is used to reset the side ear folding push rod 26. The vertical cylinder 21 drives the side ear folding push rod 26 to be in the same horizontal position as the cardboard box. The horizontal cylinder 23 drives the first side ear of the side ear folding push rod 26 to bend inward toward the inside of the cardboard box.

[0038] Reference Figure 6 , 7 As shown, the cardboard box handling unit 3 includes a support base 31, a vertical handling cylinder 32, a horizontal handling support plate 33, a horizontal handling cylinder 34, a gripper mounting rectangular frame 35, and several cardboard box handling components 36 arranged symmetrically in pairs. The vertical handling cylinder 32 is fixedly mounted on the support base 31. The horizontal handling support plate 33 is connected to the piston rod of the vertical handling cylinder 32. The horizontal handling cylinder 34 is mounted on the horizontal handling support plate 33. One end of the gripper mounting rectangular frame 35 is connected to the piston rod of the horizontal handling cylinder 34, and the gripper mounting rectangular frame 35 is slidably connected to the horizontal handling support plate 33. Cardboard box handling components 36 are provided on both opposite long sides of the gripper mounting rectangular frame 35, and the cardboard boxes are placed on the cardboard box handling components 36 arranged symmetrically in pairs. The horizontal transport support plate 33 is a rectangular plate, and guide posts 331 are connected to the four corners of the horizontal transport support plate 33. The support base 31 is provided with guide sleeves 311, and the guide posts 331 and guide sleeves 311 are slidably connected. The horizontal transport support plate 33 is provided with two parallel and symmetrically arranged linear guide rails 332. The gripper mounting rectangular frame 35 is connected with a slider 351, and the slider 351 and the linear guide rails 332 are slidably connected.

[0039] Reference Figure 8 As shown, the paper box handling assembly 36 includes a paper box suction nozzle 361 and two symmetrically arranged paper box limiting grippers 362. The paper box suction nozzle 361 and the two symmetrically arranged paper box limiting grippers 362 are on the same straight line, and the paper box suction nozzle 361 is located between the two symmetrically arranged paper box limiting grippers 362. The paper box suction nozzle 361 is used to suction paper boxes. The end of the paper box in the length direction is disposed on the two symmetrically arranged paper box limiting grippers 362, and the two symmetrically arranged paper box limiting grippers 362 are used for limiting the paper box.

[0040] Reference Figure 9 , 10 As shown, the side cover folding assembly 12 includes a paper box folding guide plate 121, a paper box folding guide rod 122, and several guide rod mounting plates 123. The paper box folding guide plate 121 and several guide rod mounting plates 123 are all mounted on the support frame 11. The paper box folding guide rod 122 is mounted on several guide rod mounting plates 123. A gap 120 is provided between the paper box folding guide plate 121 and the support frame 11 for the second side ear of the paper box and the side cover to enter. The cross-section of the paper box folding guide rod 122 is circular, and the axial direction of the paper box folding guide rod 122 is set along the conveying direction of the paper box. The paper box folding guide rod 122 is bent upward and inward along the conveying direction of the paper box.

[0041] Reference Figure 11 , 12 As shown, the paper box folding guide rod 122 includes an inlet portion 1221, a first folding portion 1222, a second folding portion 1223, and an outlet portion 1224. The inlet portion 1221, the first folding portion 1222, the second folding portion 1223, and the outlet portion 1224 are connected together in sequence along the direction from the paper box feeding end 101 to the formed paper box discharge end 102. The inlet portion 1221 is inclined downwards. The first folding portion 1222 is arranged horizontally and parallel to the paper box conveying direction. The first folding portion 1222 is used to fold the first crease at the connection position between the side cover and the paper box. The second folding portion 1223 is inclined upwards and tilted towards the paper box opening direction. The second folding portion 1223 is used to fold the second crease of the side cover. The outlet portion 1224 is arranged horizontally and parallel to the paper box conveying direction. The outlet portion 1224 is in contact with the outer wall of the side cover.

[0042] Reference Figure 9 , 10 As shown, the paper box folding guide plate 121 includes an L-shaped connecting plate 1211, an upper plate 1212, a side plate 1213, and a pressure plate 1214. The L-shaped connecting plate 1211 is fixedly connected to the support frame 11. One side of the upper plate 1212 is connected to the upper end of the L-shaped connecting plate 1211. The side plate 1213 is connected to the other side of the upper plate 1212. The pressure plate 1214 is connected to the side plate 1213. The L-shaped connecting plate 1211, the upper plate 1212, the side plate 1213, and the pressure plate 1214 form a rectangular cavity structure with an opening. The paper box folding guide rod 122 is located in the rectangular cavity. A space is provided between the pressure plate 1214 and the support frame 11. With a gap 120, the upper plate 1212 is provided with a side ear pusher plate 1215 near the end of the paper box feeding end 101, the side plate 1213 is provided with a side ear pusher plate 1216 near the end of the paper box feeding end 101, and the pressure plate 1214 is provided with a side ear pusher plate 1217 near the end of the paper box feeding end 101. The length of the side ear pusher plate 1217 is greater than that of the side ear pusher plate 1215 and the side ear pusher plate 1216. The side ear pusher plate 1215, the side ear pusher plate 1216 and the side ear pusher plate 1217 are inclined towards the center of the rectangular cavity. The side ear pusher plate 1215, the side ear pusher plate 1216 and the side ear pusher plate 1217 are used for folding and forming the second side ear.

[0043] Reference Figure 14As shown, the side cover assembly 13 includes a horizontal support plate 131, a direct-push cylinder 132, a direct-push slide plate 133, a vertical support plate 134, a vertical adjustment cylinder 135, a vertical slide plate 136, and a side cover push plate 137. The direct-push cylinder 132 is fixedly mounted on the horizontal support plate 131. One end of the direct-push slide plate 133 is connected to the piston rod of the direct-push cylinder 132. The vertical support plate 134 is fixedly connected to the other end of the direct-push slide plate 133. The vertical adjustment cylinder 135 is mounted on the vertical support plate 136. On the support plate 134, the piston rod of the vertical sliding plate 136 and the vertical adjustment cylinder 135 are connected. The side cover push plate 137 is fixedly connected to the lower end of the vertical sliding plate 136, and the side cover push plate 137 is arranged parallel to the cardboard box. The vertical adjustment cylinder 135 and the straight push cylinder 132 drive the side cover push plate 137 to push the folded side cover end into the cardboard box. The end of the side cover push plate 137 away from the vertical sliding plate 136 is set as a thin sheet so that the thin sheet end can insert the side cover into the opening of the cardboard box. The horizontal support plate 131 is provided with a linear guide rail 138, which is perpendicular to the conveying direction of the paper box. The push slide 133 is connected to a slider 139, which is slidably connected to the linear guide rail 138. The vertical support plate 134 is provided with a linear guide rail 1310, and the vertical slide 136 is connected to a slider 1311, which is slidably connected to the linear guide rail 1310. The linear guide rail 1310 is perpendicular to the linear guide rail 138.

[0044] Reference Figure 13 As shown, the side cover assembly 13 further includes a sliding support 1312, a linear guide rail 1313, a slider 1314, a connecting rod 1315, and a connecting plate 1316. The linear guide rail 1313 is fixedly mounted on the sliding support 1312 and is arranged along the conveying direction of the paper box. The slider 1314 is fixedly connected to the horizontal support plate 131, and the slider 1314 is slidably connected to the linear guide rail 1313. The connecting plate 1315... 6. A horizontal support plate 131 is connected to a connecting rod 1315. Two symmetrical and parallel cylindrical guide rods 1317 are connected to the connecting plate 1316. A connecting rod 352 is connected to the side wall of the rectangular frame 35 for mounting the grippers. A cam follower 353 is installed at the end of the connecting rod 352. The cam follower 353 is located in the gap between the two symmetrical and parallel cylindrical guide rods 1317 and is in rolling connection with the cylindrical guide rods 1317. The support frame 11 is provided with several sets of symmetrically arranged cardboard box clamping cylinders 30. Two symmetrically arranged cardboard box grippers 301 are connected to each cardboard box clamping cylinder 30. The cardboard box clamping cylinders 30 drive the two symmetrically arranged cardboard box grippers 301 to clamp the end of the cardboard box in the length direction.

[0045] The working method of the paper box side lug double-sided synchronous forming device of the present invention includes the following steps:

[0046] S1. The piston rod of the vertical cylinder 32 extends, driving the horizontal support plate 33 to rise, so that the paper box handling assembly 36 rises to the paper box picking position.

[0047] S2. The paper box blank is placed on two symmetrically arranged paper box limiting claws 362, while the paper box suction nozzle 361 suctions the paper box.

[0048] S3. The piston rod of the vertical cylinder 32 is retracted, so that the lower end face of the paper box on the paper box conveying assembly 36 is at the same horizontal position as the upper edge of the support frame 11.

[0049] S4. The horizontal cylinder 34 drives the carton conveying assembly 36 to move horizontally, moving the carton blank placed on the carton conveying assembly 36 between the two symmetrically arranged first side ear folding units 2.

[0050] S5. The two symmetrically arranged first side ear folding units 2 are started simultaneously to fold the first side ear. The vertical cylinder 21 drives the folding side ear push rod 26 to rise, so that the folding side ear push rod 26 and the first side ear are at the same horizontal position.

[0051] S6. The piston rod of the horizontal cylinder 23 for folding side ear extends and pushes the push rod 26 for folding side ear to move toward the first side ear. As the horizontal cylinder 23 for folding side ear drives the push rod 26 for folding side ear to push the first side ear toward the opening of the cardboard box, the first side ear is folded until the first side ear reaches the folded position.

[0052] S7. After the first side ear is folded, the two symmetrically arranged first side ear folding units 2 are reset.

[0053] S8. The horizontal cylinder 34 drives the carton conveying assembly 36 to move horizontally, and the carton moves along the upper edge of the support frame 11.

[0054] S9. When the side cover folding assembly 12 is working, during the process of the horizontal cylinder 34 moving the carton, the second side ear first contacts the side ear push plate 1215. As the carton moves, the side ear push plate 1215 folds the second side ear towards the opening of the carton. Then, during the process of the second side ear contacting the side ear push plate 216 and the side ear push plate 317, the side ear push plate 216 and the side ear push plate 317 will further fold the second side ear.

[0055] S10. As the horizontal conveying cylinder 34 drives the paper box conveying assembly 36 to move, the side cover of the paper box enters the gap 120. During the process of the horizontal conveying cylinder 34 driving the paper box to move in a straight line, the side cover contacts the inlet 1221, the first fold 1222, the second fold 1223 and the outlet 1224 in sequence, thereby completing the first and second folds of the side cover. The first fold is the crease at the connection position between the side cover and the paper box, and the second fold is parallel to the first fold and located on the side cover.

[0056] S11. The horizontal cylinder 34 drives the paper box transport assembly 36 to continue moving until it reaches the position of the side cover assembly 13. The vertical cylinder 32 drives the paper box transport assembly 36 to descend, so that the paper box on the paper box transport assembly 36 and the two symmetrically arranged paper box grippers 301 are at the same horizontal position.

[0057] S12, the paper box clamping cylinder 30 drives two symmetrically arranged paper box grippers 301 to hold the paper box, while the vertical conveying cylinder 32 drives the paper box conveying assembly 36 to continue to descend.

[0058] S13, The thin plate-shaped end of the side cover push plate 137 driven by the vertical adjustment cylinder 135 is positioned directly opposite the side cover;

[0059] S14, the direct-push cylinder 132 drives the side cover push plate 137 to move towards the side cover and pushes the tongue-shaped end of the side cover to fold into the opening of the carton;

[0060] S15. The vertical cylinder 32 drives the paper box transport assembly 36 to rise. The paper box transport assembly 36 contacts the paper box on the two symmetrically arranged paper box grippers 301. The two symmetrically arranged paper box grippers 301 release the paper box onto the paper box transport assembly 36.

[0061] S16. The horizontal conveying cylinder 34 drives the paper box conveying assembly 36 to move. At the same time, since the cam follower 353 is located between two symmetrical and parallel cylindrical guide rods 1317, the horizontal conveying cylinder 34 synchronously drives the side cover assembly 13 to move with the paper box to the unloading position. Since the side cover assembly 13 always presses the side cover of the paper box, it can prevent the side cover of the paper box from falling out of the paper box opening, thus ensuring that the paper box can be sealed at the paper box opening when it reaches the unloading position, thereby completing the forming of a paper box.

[0062] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A device for simultaneous forming of side ears on both sides of a paper box, characterized in that: include, A paper box forming platform has a paper box feeding end and a formed paper box discharging end at its two ends along its length. The paper box forming platform includes two symmetrically arranged paper box forming units, which are used for folding the second side ears and side covers at both ends along the length of the paper box, respectively. Two symmetrically arranged first side ear folding units are located at the paper box feeding end, and the two symmetrically arranged first side ear folding units and the two symmetrically arranged paper box forming units are arranged in a one-to-one correspondence. The first side ear folding unit is used for folding the first side ear of the paper box. A cardboard box handling unit is disposed between two symmetrically arranged cardboard box forming units, and the cardboard box handling unit is used for handling and conveying cardboard boxes; The carton forming unit includes a support frame, a side cover folding assembly, and a side cover insertion assembly. The carton conveying unit is located between two support frames. Both the side cover folding assembly and the side cover insertion assembly are mounted on the support frames. The side cover folding assembly is used for folding the second side ear and the side cover. The side cover insertion assembly is used for inserting the folded side cover into the carton. The first side ear folding unit, the side cover folding assembly, and the side cover insertion assembly are arranged sequentially according to the carton conveying direction. The side cover folding assembly includes a paper box folding guide plate, a paper box folding guide rod, and several guide rod mounting plates. The paper box folding guide plate and the several guide rod mounting plates are all mounted on a support frame. The paper box folding guide rod is mounted on the several guide rod mounting plates. A gap is provided between the paper box folding guide plate and the support frame for the second side lug of the paper box and the side cover to enter. The paper box folding guide rod has a circular cross-section, and its axial direction is along the conveying direction of the paper box. The paper box folding guide rod bends upward and inward along the conveying direction of the paper box. The paper box folding guide plate includes an L-shaped connecting plate, an upper plate, a side plate, and a pressure plate. The L-shaped connecting plate is fixedly connected to the support frame. One side of the upper plate is connected to the upper end of the L-shaped connecting plate. The side plate is connected to the other side of the upper plate. The pressure plate is connected to the side plate. The L-shaped connecting plate, the upper plate, the side plate, and the pressure plate form a rectangular cavity structure with an opening. The paper box folding guide rod is located in the rectangular cavity. There is a gap between the pressure plate and the support frame. The upper plate has a side ear pusher plate one near the paper box feeding end. The side plate has a side ear pusher plate two near the paper box feeding end. The pressure plate has a side ear pusher plate three near the paper box feeding end. The length of the side ear pusher plate three is greater than that of the side ear pusher plate one and the side ear pusher plate two. The side ear pusher plate one, the side ear pusher plate two, and the side ear pusher plate three are inclined towards the center of the rectangular cavity. The side ear pusher plate one, the side ear pusher plate two, and the side ear pusher plate three are used for the second side ear folding and forming.

2. The paper box side ear double-sided synchronous forming device according to claim 1, characterized in that: The first side ear folding unit includes a vertical cylinder, a connecting plate, a horizontal side ear folding cylinder, a connecting plate, a rotating shaft, a side ear folding push rod, a torsion spring, and a limiting post. The connecting plate is connected to the piston rod of the vertical cylinder. The horizontal side ear folding cylinder is mounted on the connecting plate. The connecting plate is connected to the piston rod of the horizontal side ear folding cylinder. The limiting post is mounted on the connecting plate. The horizontal side ear folding push rod is connected to the horizontal side ear folding cylinder via the rotating shaft. A cylinder is connected, and the rotating shaft is used to allow the folding side ear push rod to rotate around the shaft when folding the first side ear. The torsion spring is sleeved on the rotating shaft. One end of the torsion spring abuts against the limiting post, and the other end of the torsion spring abuts against the side wall of the folding side ear push rod. The torsion spring is used to reset the folding side ear push rod. The vertical cylinder drives the folding side ear push rod to be in the same horizontal position as the cardboard box. The horizontal cylinder drives the folding side ear push rod to bend the first side ear inward toward the inside of the cardboard box.

3. The paper box side ear double-sided synchronous forming device according to claim 1, characterized in that: The cardboard box handling unit includes a support base, a vertical handling cylinder, a horizontal handling support plate, a horizontal handling cylinder, a gripper mounting rectangle, and several cardboard box handling components arranged symmetrically in pairs. The vertical handling cylinder is fixedly mounted on the support base. The horizontal handling support plate is connected to the piston rod of the vertical handling cylinder. The horizontal handling cylinder is mounted on the horizontal handling support plate. One end of the gripper mounting rectangle is connected to the piston rod of the horizontal handling cylinder, and the gripper mounting rectangle is slidably connected to the horizontal handling support plate. Cardboard box handling components are provided on both opposite long sides of the gripper mounting rectangle, and the cardboard boxes are placed on the symmetrically arranged cardboard box handling components.

4. The paper box side ear double-sided synchronous forming device according to claim 3, characterized in that: The paper box handling assembly includes a paper box suction nozzle and two symmetrically arranged paper box limiting grippers. The paper box suction nozzle and the two symmetrically arranged paper box limiting grippers are on the same straight line, and the paper box suction nozzle is located between the two symmetrically arranged paper box limiting grippers. The paper box suction nozzle is used to suction paper boxes. The end of the paper box in the length direction is disposed on the two symmetrically arranged paper box limiting grippers, and the two symmetrically arranged paper box limiting grippers are used to limit the paper box.

5. The paper box side ear double-sided synchronous forming device according to claim 1, characterized in that: The paper box folding guide rod includes an inlet, a first fold, a second fold, and an outlet. The inlet, first fold, second fold, and outlet are connected sequentially along the direction from the paper box feed end to the formed paper box discharge end. The inlet is inclined downwards. The first fold is arranged horizontally and parallel to the paper box conveying direction. The first fold is used to fold the first crease at the connection position between the side cover and the paper box. The second fold is inclined upwards and tilted towards the paper box opening direction. The second fold is used to fold the second crease of the side cover. The outlet is arranged horizontally and parallel to the paper box conveying direction. The outlet contacts the outer wall of the side cover.

6. The paper box side ear double-sided synchronous forming device according to claim 3, characterized in that: The side cover assembly includes a horizontal support plate, a direct-push cylinder, a direct-push slide plate, a vertical support plate, a vertical adjustment cylinder, a vertical slide plate, and a side cover push plate. The direct-push cylinder is fixedly mounted on the horizontal support plate. One end of the direct-push slide plate is connected to the piston rod of the direct-push cylinder. The other end of the vertical support plate is fixedly connected to the direct-push slide plate. The vertical adjustment cylinder is mounted on the vertical support plate. The vertical slide plate is connected to the piston rod of the vertical adjustment cylinder. The lower end of the side cover push plate is fixedly connected to the vertical slide plate. The side cover push plate is parallel to the cardboard box. The vertical adjustment cylinder and the direct-push cylinder drive the side cover push plate to push the folded side cover end into the cardboard box.

7. The paper box side ear double-sided synchronous forming device according to claim 6, characterized in that: The end of the side cover push plate away from the vertical slide plate is designed as a thin sheet.

8. The paper box side ear double-sided synchronous forming device according to claim 6, characterized in that: The side cover assembly also includes a sliding support, a linear guide rail, a slider, a connecting rod, and a connecting plate. The linear guide rail is fixedly mounted on the sliding support and is arranged along the conveying direction of the paper box. The slider is fixedly connected to the horizontal support plate and slidably connected to the linear guide rail. The connecting plate is connected to the horizontal support plate via the connecting rod. Two symmetrical and parallel cylindrical guide rods are connected to the connecting plate. The connecting rod is connected to the side wall of the rectangular frame on which the gripper is mounted. A cam follower is mounted at the end of the connecting rod. The cam follower is located in the gap between the two symmetrical and parallel cylindrical guide rods and is tumblingly connected to the cylindrical guide rods.

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