Continuous paperboard feeding device

Abstract

The utility model discloses a continuous paperboard feeding device which comprises a conveying mechanism, a lifting mechanism, a buffering lifting mechanism, a material taking mechanism and an output mechanism. The lifting mechanism comprises a lifting driving piece and a lifting assembly and is used for bearing the multiple paperboards conveyed by the conveying mechanism. The cache lifting mechanism comprises a lifting frame, a first horizontal driving piece, a cache frame and a lifting driving piece, and the cache lifting mechanism can receive the multiple paperboards on the lifting assembly and lift the paperboards to the position below the material taking mechanism; the material taking mechanism is located above the lifting mechanism and used for obtaining the paperboards on the uppermost portion of the cache lifting mechanism and transferring the paperboards to the output mechanism. The output mechanism is located on one side of the material taking mechanism and used for sending out the paperboards transferred by the material taking mechanism. The paperboard stack is replaced and connected through the lifting mechanism and the cache lifting mechanism, the lifting mechanism can cache one paperboard stack again, and the paperboard stack is moved upwards through the cache lifting mechanism, so that the stroke of the paperboard obtaining action of the material taking mechanism is short.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and in particular to a continuous paperboard feeding device. Background Technology

[0002] To facilitate the storage and transportation of beverage bottles, multiple bottles are typically packaged together in cardboard boxes. In existing beverage bottle packaging and conveying processes, a suction cup mechanism is used to remove individual pieces of cardboard from a stack, then feed them onto a cardboard conveyor belt. During the suction process, the entire stack needs to move up, down, left, and right. Since the cardboard stack remains stationary, its height decreases after each piece is removed, causing the suction cup's stroke to gradually increase as the number of pieces on the stack decreases. This results in a relatively slow speed, impacting the packaging efficiency of the beverage bottles. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a continuous paperboard feeding device.

[0004] To achieve the above objectives, the technical solution provided by an embodiment of this utility model is as follows:

[0005] A continuous paperboard feeding device includes a conveying mechanism, a lifting mechanism, a buffer lifting mechanism, a material picking mechanism, and an output mechanism;

[0006] The conveying mechanism is used to convey multiple stacked cardboard sheets;

[0007] The lifting mechanism includes a lifting drive and a lifting assembly connected to the lifting drive, used to receive multiple cardboard pieces conveyed by the conveying mechanism;

[0008] The buffer lifting mechanism includes a lifting frame, a first horizontal drive component disposed on the lifting frame, a buffer frame connected to the first horizontal drive component, and a lifting drive component connected to the lifting frame. The buffer lifting mechanism is capable of receiving multiple cardboards on the lifting assembly and lifting them below the material handling mechanism.

[0009] The material handling mechanism is located above the lifting mechanism and is used to pick up the cardboard at the top of the buffer lifting mechanism and transfer it to the output mechanism;

[0010] The output mechanism is located on one side of the material handling mechanism and is used to deliver the cardboard transferred by the material handling mechanism.

[0011] As a further improvement of this utility model, the first horizontal drive component includes a first cylinder, the output end of the first cylinder is connected to the buffer frame, and the buffer frame includes a support plate and a plurality of buffer rods fixed to the support plate and arranged horizontally at intervals.

[0012] As a further improvement of this utility model, it also includes a limiting mechanism located on the other side of the material handling mechanism. The limiting mechanism includes a limiting frame, a first lead screw assembly passing through the limiting frame, a second lead screw meshing with the first lead screw assembly, and a third lead screw meshing with the second lead screw. The first lead screw assembly is connected to the limiting component.

[0013] As a further improvement of this utility model, the first lead screw assembly includes a first lead screw and a lead screw nut that cooperates with the first lead screw. The limiting assembly includes a support plate, at least one guide rod connected to the support plate, and a plurality of limiting plates connected to the at least one guide rod and spaced apart. The support plate is fixedly connected to the lead screw nut. The at least one guide rod passes through the limiting frame, and the limiting plates extend in the vertical direction.

[0014] As a further improvement of this utility model, the material picking mechanism includes a second horizontal drive member, a material picking frame connected to the second horizontal drive member, and at least one material picking component installed on the material picking frame, wherein the material picking component is capable of moving in the vertical direction.

[0015] As a further improvement of this utility model, the material picking component includes a vacuum cylinder and a suction cup connected to the vacuum cylinder. The number of the material picking components is four, and the four material picking components are arranged at intervals along the horizontal direction. The material picking frame is provided with two adjusting screw assemblies. The two material picking components located in the middle are respectively connected to one of the adjusting screw assemblies, and the two material picking components located on both sides are respectively connected to the other adjusting screw assembly.

[0016] As a further improvement of this utility model, the output mechanism includes a support frame and a swing mechanism, a support shaft and a lower roller disposed on the support frame. The swing mechanism includes a swing drive, a support frame and an upper roller disposed on the support frame. One end of the swing drive is hinged to the support frame and the other end is connected to the support frame. The support frame is sleeved on the support shaft.

[0017] As a further improvement of this utility model, the support frame includes two support side plates arranged opposite to each other, a support horizontal plate connected to the two support side plates, the two ends of the support shaft passing through the two support side plates and extending into the support frame, and the other end of the swing drive member being connected to the support horizontal plate.

[0018] As a further improvement of this utility model, the bearing horizontal plate is connected to at least one bearing seat, the bearing seat is provided with a bearing, and the support shaft passes through the bearing.

[0019] As a further improvement of this utility model, each end of the support shaft is connected to the corresponding end of the upper roller with a gear transmission assembly, and a driven synchronous pulley is provided at one end of the support shaft. The driven synchronous pulley is connected to a driving synchronous pulley through a synchronous belt, and the driving synchronous pulley is connected to a drive motor.

[0020] The beneficial effects of this utility model are:

[0021] (1) This utility model achieves the conveying, lifting, buffering, picking and output of cardboard stacks through the cooperation of conveying mechanism, lifting mechanism, buffering and lifting mechanism, picking and output mechanism, which has high work efficiency and effectively reduces time cost.

[0022] (2) This utility model replaces and transfers cardboard stacks by using a lifting mechanism and a buffer lifting mechanism. This allows the lifting mechanism to buffer the next cardboard stack when the buffer lifting mechanism is in operation, thus achieving continuous cardboard feeding.

[0023] (3) After the cardboard on the cardboard stack is picked up by the picking mechanism, the cardboard stack can be moved upward by the buffer lifting mechanism, so that the stroke of the picking mechanism to pick up the cardboard is short, which makes it easier for the cardboard to quickly enter the next process and improves packaging efficiency.

[0024] (4) The setting of the limiting mechanism can prevent the cardboard stack from moving during the lifting process, ensuring the neatness of the cardboard stack and facilitating the subsequent stable picking of cardboard. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the conveying mechanism according to a preferred embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram showing the arrangement of the lifting mechanism and the output mechanism in a preferred embodiment of the present invention.

[0029] Figure 4 A schematic diagram of the limiting mechanism of a preferred embodiment of this utility model;

[0030] Figure 5A schematic diagram of the cache boosting mechanism of a preferred embodiment of the utility model;

[0031] Figure 6 A schematic diagram of the material handling mechanism of a preferred embodiment of this utility model;

[0032] Figure 7 for Figure 6 Enlarged diagram of A in the middle;

[0033] Figure 8 This is a schematic diagram of the output mechanism of a preferred embodiment of the present invention;

[0034] Figure 9 This is a schematic diagram of the output mechanism from another perspective, representing a preferred embodiment of the present invention.

[0035] Figure 10 This is a side view of the output mechanism of a preferred embodiment of the present invention.

[0036] Figure 11 for Figure 10 BB-direction sectional view;

[0037] Figure 12 This is a schematic diagram of the cardboard operation according to a preferred embodiment of the present invention;

[0038] Figure 13 for Figure 12 Enlarged diagram of C in the middle;

[0039] In the diagram: 1. Conveying mechanism; 11. Frame; 12. Conveying motor; 13. Roller conveyor; 14. Baffle; 15. Adjustable side plate; 2. Lifting mechanism; 211. Lifting motor; 212. First sprocket and chain assembly; 22. Lifting assembly; 221. Lifting frame; 222. Support rod; 23. Vertical plate; 231. Guide groove; 24. Support; 25. Guide wheel; 3. Buffer lifting mechanism; 31. Lifting frame; 33. Buffer frame; 331. Support plate; 332. Buffer rod; 35. First cylinder; 36. Lifting motor; 37. Second sprocket and chain assembly; 4. Material handling mechanism; 41. Material handling frame; 42. Material handling assembly; 421. Vacuum cylinder; 422. Suction cup; 43. Second cylinder; 44. Adjusting screw assembly; 5. Output mechanism; 51. Support frame; 511. Support side plate; 5111. Bearing... 5112. Plate, Limiting rod, 5113. Mounting plate, 5114. Stop plate, 5115. Vertical plate, 5116. Protruding plate, 512. Support beam, 52. Swinging mechanism, 521. Bearing frame, 5211. Bearing side plate, 5212. Bearing horizontal plate, 5213. Bearing seat, 5214. Bearing, 522. Upper roller, 53. Support shaft, 54. Lower roller, 55. Third cylinder, 56. Gear transmission assembly, 571. Driven synchronous pulley, 572. Driving synchronous pulley, 58. Drive motor, 6. Cardboard, 7. Limiting mechanism, 71. Limiting frame, 72. First lead screw assembly, 721. First lead screw, 722. Lead screw nut, 73. Second lead screw, 74. Third lead screw, 75. Support plate, 76. Guide rod, 77. Limiting plate, 78. First bevel gear assembly, 79. Second bevel gear assembly. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0041] Please see Figure 1 , Figure 3This application discloses a continuous paperboard feeding device, including a conveying mechanism 1, a lifting mechanism 2, a buffer lifting mechanism 3, a picking mechanism 4, and an output mechanism 5. The conveying mechanism 1 conveys multiple stacked paperboards 6. The lifting mechanism 2 includes a lifting drive and a lifting assembly 22 connected to the lifting drive, used to receive the multiple paperboards 6 conveyed by the conveying mechanism 1. The buffer lifting mechanism 3 includes a lifting frame 31, a first horizontal drive disposed on the lifting frame 31, a buffer frame 33 connected to the first horizontal drive, and a lifting drive connected to the lifting frame 31. The buffer lifting mechanism 3 can receive the multiple paperboards 6 on the lifting assembly 22 and lift them below the picking mechanism 4. The picking mechanism 4 is located above the lifting mechanism 2 and is used to pick up the uppermost paperboard 6 of the buffer lifting mechanism 3 and transfer it to the output mechanism 5. The output mechanism 5 is located on one side of the picking mechanism 4 and is used to deliver the paperboard 6 transferred by the picking mechanism 4.

[0042] This invention uses a lifting mechanism 2 and a buffer lifting mechanism 3 to replace and transfer cardboard stacks. This allows the lifting mechanism 2 to buffer another cardboard stack while the buffer lifting mechanism 3 is in operation, enabling continuous cardboard feeding. After the cardboard on the stack is picked up by the picking mechanism 4, the stack can be moved upward by the buffer lifting mechanism 3. This results in a short stroke for the picking mechanism 4 to pick up the cardboard, facilitating the cardboard to quickly enter the next process and improving packaging efficiency.

[0043] Please see Figure 1 , Figure 2 The conveying mechanism 1 includes a frame 11, a conveyor motor 12 mounted on the frame 11, and a roller conveyor line 13. Multiple stacked cardboard sheets 6 are placed on the roller conveyor line 13, with the conveyor motor 12 serving as the power source to drive the roller conveyor line 13. The frame 11 is also equipped with a baffle 14 and an adjustable side plate 15. The baffle 14 is located at the beginning of the conveying direction of the roller conveyor line 13, preventing the cardboard sheets 6 from slipping off the roller conveyor line 13. The adjustable side plate 15 is used to limit the movement of the multiple cardboard sheets 6, ensuring their neatness during movement.

[0044] Please see Figure 1 , Figure 3The lifting drive includes a lifting motor 211 and a first sprocket and chain assembly 212 connected to and driven by the lifting motor 211. The first sprocket and chain assembly 212 is connected to the lifting assembly 22. The lifting motor 211 is activated, causing the first sprocket and chain assembly 212 to move and lift the lifting assembly 22. Specifically, the lifting assembly 22 includes a lifting frame 221 and multiple support rods 222 fixed to the lifting frame 221 and spaced apart. The support rods 222 extend horizontally, and their extension direction is perpendicular to the conveying direction of the conveying mechanism 1. The support rods 222 are located between adjacent rollers of the roller conveyor line 13. When the roller conveyor line 13 conveys multiple cardboard sheets 6 above the multiple support rods 222, the lifting motor 211 is activated, causing the first sprocket and chain assembly 212 to drive the multiple support rods 222 to rise, support the multiple cardboard sheets 6, and raise them to a designated position.

[0045] To facilitate the linear movement of multiple support rods 222 in the vertical direction and prevent the cardboard stack from moving, it is preferable to also include two opposing upright plates 23, each upright plate 23 being provided with a guide groove 231. Supports 24 are fixed at both ends of the support frame 221, and guide wheels 25 are connected to the supports 24. The guide wheels 25 can move vertically along the guide groove 231.

[0046] Please see Figure 1 , Figure 4 It also includes a limiting mechanism 7 located on the other side of the material handling mechanism 4. The limiting mechanism 7 includes a limiting frame 71, a first lead screw assembly 72 passing through the limiting frame 71, a second lead screw 73 meshing with the first lead screw assembly 72, and a third lead screw 74 meshing with the second lead screw 73. The first lead screw assembly 72 is connected to the limiting assembly.

[0047] Preferably, please refer to Figure 4 , Figure 13The first lead screw assembly 72 includes a first lead screw 721 and a lead screw nut 722 that cooperates with the first lead screw 721. The limiting assembly includes a support plate 75, at least one guide rod 76 connected to the support plate 75, and a plurality of limiting plates 77 connected to the at least one guide rod 76 and spaced apart. The support plate 75 is fixedly connected to the lead screw nut 722. At least one guide rod 76 passes through the limiting frame 71, and the limiting plates 77 extend vertically. A first bevel gear assembly 78 is fitted between the first lead screw 721 and the second lead screw 73, and a second bevel gear assembly 79 is fitted between the second lead screw 73 and the third lead screw 74. When the third lead screw 73 is rotated, the second lead screw 73 is driven to rotate via the second bevel gear assembly 79. The second lead screw 73, in turn, drives the first lead screw 721 to rotate via the first bevel gear assembly 78. This causes the lead screw nut 722 to drive the support plate 75 to move horizontally and linearly along the first lead screw 721. Consequently, the guide rod 76 drives multiple limiting plates 77 to move horizontally and linearly, aligning the limiting plates 77 with the edge of the cardboard 6. A space is formed between adjacent limiting plates 77 to avoid interference with the movement of the lifting mechanism 2 and the buffer lifting mechanism 3. The lower end of the limiting plate 77 is inclined towards the buffer lifting mechanism 3. If there is a slight deviation when the cardboard 6 is lifted upwards, the inclined surface at the lower end of the limiting plate 77 will guide the cardboard 6 back, facilitating the correction of multiple cardboards 6 during the lifting process.

[0048] Please see Figure 5 The first horizontal drive component includes a first cylinder 35, the output end of which is connected to a buffer frame 33. The buffer frame 33 includes a support plate 331 and a plurality of buffer rods 332 fixed to the support plate 331 and horizontally spaced apart. The lifting drive component includes a lifting motor 36 and a second sprocket and chain assembly 37 connected to and driven by the lifting motor 36. When the cardboard stack is lifted to a designated position by the lifting mechanism 2, the first cylinder 35 drives the buffer frame 33 to move the plurality of buffer rods 332 horizontally below the cardboard stack. The lifting motor 36 is then activated, causing the second sprocket and chain assembly 37 to drive the plurality of buffer rods 332 to rise, support the plurality of cardboard 6, and lift them to the designated position.

[0049] Please see Figure 1 , Figure 6 , Figure 7The material handling mechanism 4 includes a second horizontal drive member, a material handling frame 41 connected to the second horizontal drive member, and at least one material handling component 42 mounted on the material handling frame 41. The material handling component 42 is capable of moving vertically. Specifically, the second horizontal drive member is a second cylinder 43, which drives the material handling frame 41 and the material handling component 42 to move horizontally toward or away from the output mechanism 5. The material handling component 42 includes a vacuum cylinder 421 and a suction cup 422 connected to the vacuum cylinder 421. The vacuum cylinder 421 drives the suction cup 422 to descend, and the suction cup 422 picks up the cardboard 6. The vacuum cylinder 421 then drives the suction cup 422 to lift the cardboard 6. There are four material picking components 42, which are arranged at intervals in the horizontal direction. The material picking frame 41 is provided with two adjusting screw assemblies 44. The two material picking components 42 in the middle are respectively connected to one of the adjusting screw assemblies 44, and the two material picking components 42 on both sides are respectively connected to the other adjusting screw assembly 44. The distance between the two material picking components 42 in the middle and the distance between the two material picking components on both sides are adjusted by the two adjusting screw assemblies 44, so as to facilitate the picking of paperboard of different lengths.

[0050] Please see Figure 1 , Figures 8-11 The output mechanism 5 includes a support frame 51 and a swing mechanism 52, a support shaft 53, and a lower roller 54 disposed on the support frame 51. The swing mechanism 52 includes a swing drive, a support frame 521, and an upper roller 522 disposed on the support frame 521. One end of the swing drive is hinged to the support frame 51, and the other end is connected to the support frame 521. The support frame 521 is sleeved on the support shaft 53. When the swing drive is activated, the upper roller 522 swings open by rotating the support frame 521 around the support shaft 53, creating a gap between the upper roller 522 and the lower roller 54, allowing the cardboard to enter between the upper roller 522 and the lower roller 54. Then, the upper roller 522 is driven to return to its original position, clamping the cardboard 6 between the upper roller 522 and the lower roller 54. The cardboard 6 is then quickly fed out by rotating the upper roller 522 and the lower roller 54. Preferably, both the upper roller 522 and the lower roller 54 are rubber-coated rollers.

[0051] Preferably, the support frame 521 includes two opposing support side plates 5211 and a support horizontal plate 5212 connected to the two support side plates 5211. The two ends of the support shaft 53 pass through the two support side plates 5211 and extend into the support frame 51, and the other end of the swing drive is connected to the support horizontal plate 5212. Preferably, the swing drive is a third cylinder 55, with its fixed end hinged to the support frame 51 and its output end connected to the support horizontal plate 5212.

[0052] To facilitate the rotation of the support frame 521 around the support shaft 53, it is preferable that the support horizontal plate 5212 is connected to at least one bearing seat 5213, and a bearing 5214 is provided inside the bearing seat 5213, through which the support shaft 53 passes.

[0053] To facilitate the rotation of the upper roller 522, it is preferable that each end of the support shaft 53 is connected to the corresponding end of the upper roller 522 with a gear transmission assembly 56. One end of the support shaft 53 is provided with a driven synchronous pulley 571. The driven synchronous pulley 571 is connected to a driving synchronous pulley 572 through a synchronous belt (not shown in the figure). The driving synchronous pulley 572 is connected to a drive motor 58.

[0054] The preferred support frame 51 includes two opposing support side plates 511 and at least one support beam 512 connected to the two support side plates 511. Preferably, there are two support beams 512, which are staggered vertically to improve the stability of the support frame 51.

[0055] A bearing plate 5111 is fixed to the lower outer end of each support side plate 511. A limiting rod 5112 is connected between two bearing plates 5111, and the limiting rod 5112 is parallel to the upper roller 522. A mounting plate 5113 is fixed between the bottom ends of the two support side plates 511, and a stop plate 5114 is fixed on the mounting plate 5113. The stop plate 5114 is located below the limiting rod 5112. The limiting rod 5112 prevents the cardboard 6 being sucked from tilting up, and the stop plate 5114 prevents the cardboard to be sucked from moving below the cardboard 6 being sucked, ensuring that the cardboard 6 being sucked enters the gap between the upper roller 522 and the lower roller 54 more smoothly. Preferably, the stop plate 5114 is inverted L-shaped.

[0056] To facilitate the stable installation of the paperboard feeding mechanism, it is preferable that multiple upright plates 5115 are fixed on the mounting plate 5113, and the multiple upright plates 5115 are used to fix and connect with the body plate of the roller conveyor line 13.

[0057] Specifically, please refer to Figure 3 , Figure 9 The mounting plate 5113 has multiple protruding plates 5116 on its edge. The protruding plates 5116 extend vertically. The lower end of the stop plate 5114 is fixed to the upper part of the protruding plate 5116, and the upper end of the upright plate 5115 is fixed to the lower part of the protruding plate 5116.

[0058] In use, the cardboard stack, i.e., multiple stacked cardboard pieces 6, is placed on the roller conveyor line 13. The conveyor motor 12 starts and drives the roller conveyor line 13 to transport the cardboard stack to the lifting mechanism 2. At this time, the cardboard stack is located above multiple support rods 222. The lifting motor 211 starts, causing the first sprocket and chain assembly 212 to drive the multiple support rods 222 to rise and support the multiple cardboard pieces 6 and rise to the buffer position. The first cylinder 35 starts and drives the buffer frame 33 to move toward the multiple support rods 222. The multiple buffer rods 332 are staggered with the multiple support rods 222. The lifting motor 36 starts and drives the multiple buffer rods 332 to rise and receive the cardboard stack through the second sprocket and chain assembly 37. The lifting motor 211 drives the multiple support rods 222 to descend through the first sprocket and chain assembly 212 to receive the next cardboard stack. The cardboard stack on storage rod 332 continues to rise to the designated height. Vacuum cylinder 421 is activated, driving suction cup 422 to descend and pick up the top layer of cardboard 6 from the stack and rise. Second cylinder 43 is activated, causing cardboard 6 to move horizontally to output mechanism 5. At the same time, third cylinder 55 retracts, driving support frame 521 to rotate around support shaft 53, causing upper roller 522 to move, creating a gap between upper roller 522 and lower roller 54. Cardboard 6 picked up by suction cup 422 is sent into the gap. Third cylinder 55 extends, and after upper roller 522 and lower roller 54 clamp cardboard 6, drive motor 58 drives active synchronous wheel 572 to rotate, causing driven synchronous wheel 571 to rotate, which in turn drives support shaft 53 to rotate. Then, through gear transmission assembly 56, upper roller 522 is rotated, and lower roller 54 also rotates to the rear end to send cardboard 6 out.

[0059] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A continuous paperboard feeding device, characterized in that, This includes a conveying mechanism, a lifting mechanism, a buffer lifting mechanism, a material handling mechanism, and an output mechanism; The conveying mechanism is used to convey multiple stacked cardboard sheets; The lifting mechanism includes a lifting drive and a lifting assembly connected to the lifting drive, used to receive multiple cardboard pieces conveyed by the conveying mechanism; The buffer lifting mechanism includes a lifting frame, a first horizontal drive component disposed on the lifting frame, a buffer frame connected to the first horizontal drive component, and a lifting drive component connected to the lifting frame. The buffer lifting mechanism is capable of receiving multiple cardboards on the lifting assembly and lifting them below the material handling mechanism. The material handling mechanism is located above the lifting mechanism and is used to pick up the cardboard at the top of the buffer lifting mechanism and transfer it to the output mechanism; The output mechanism is located on one side of the material handling mechanism and is used to deliver the cardboard transferred by the material handling mechanism.

2. The continuous paperboard feeding device according to claim 1, characterized in that, The first horizontal drive component includes a first cylinder, the output end of which is connected to the buffer frame. The buffer frame includes a support plate and a plurality of buffer rods fixed to the support plate and arranged horizontally at intervals.

3. The continuous paperboard feeding device according to claim 1, characterized in that, It also includes a limiting mechanism located on the other side of the material handling mechanism. The limiting mechanism includes a limiting frame, a first lead screw assembly passing through the limiting frame, a second lead screw meshing with the first lead screw assembly, and a third lead screw meshing with the second lead screw. The first lead screw assembly is connected to the limiting component.

4. The continuous paperboard feeding device according to claim 3, characterized in that, The first lead screw assembly includes a first lead screw and a lead screw nut that cooperates with the first lead screw. The limiting assembly includes a support plate, at least one guide rod connected to the support plate, and a plurality of limiting plates connected to the at least one guide rod and spaced apart. The support plate is fixedly connected to the lead screw nut. The at least one guide rod passes through the limiting frame, and the limiting plates extend in the vertical direction.

5. The continuous paperboard feeding device according to claim 1, characterized in that, The material handling mechanism includes a second horizontal drive member, a material handling frame connected to the second horizontal drive member, and at least one material handling component mounted on the material handling frame, wherein the material handling component is capable of moving in a vertical direction.

6. The continuous paperboard feeding device according to claim 5, characterized in that, The material handling assembly includes a vacuum cylinder and a suction cup connected to the vacuum cylinder. There are four material handling assemblies, which are arranged at intervals along the horizontal direction. The material handling frame is provided with two adjusting screw assemblies. The two material handling assemblies in the middle are respectively connected to one of the adjusting screw assemblies, and the two material handling assemblies on both sides are respectively connected to the other adjusting screw assembly.

7. The continuous paperboard feeding device according to claim 1, characterized in that, The output mechanism includes a support frame and a swing mechanism, a support shaft, and a lower roller disposed on the support frame. The swing mechanism includes a swing drive, a support frame, and an upper roller disposed on the support frame. One end of the swing drive is hinged to the support frame, and the other end is connected to the support frame. The support frame is sleeved on the support shaft.

8. The continuous paperboard feeding device according to claim 7, characterized in that, The support frame includes two oppositely arranged support side plates and a support horizontal plate connected to the two support side plates. The two ends of the support shaft pass through the two support side plates and extend into the support frame, and the other end of the swing drive is connected to the support horizontal plate.

9. The continuous paperboard feeding device according to claim 8, characterized in that, The load-bearing horizontal plate is connected to at least one bearing seat, and a bearing is provided in the bearing seat, through which the support shaft passes.

10. The continuous paperboard feeding device according to claim 7, characterized in that, Each end of the support shaft is connected to the corresponding end of the upper roller by a gear transmission assembly. One end of the support shaft is provided with a driven synchronous pulley, which is connected to a driving synchronous pulley via a synchronous belt. The driving synchronous pulley is connected to a drive motor.

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